阅读说明：本技术 覆膜形成用组合物 (Composition for forming coating film ) 是由 吉野达也 于 2019-02-07 设计创作，主要内容包括：本发明提供一种组合物,其是用于通过静电喷雾直接在皮肤上形成覆膜的组合物,所形成的覆膜的肌肤融合性、密合性、耐摩擦性优异,覆膜的触感良好,并且所形成的覆膜容易剥离。本发明的覆膜形成用组合物是含有如下成分(a)、(b)、(c)和(d)的用于通过静电喷雾直接在皮肤上形成由纤维所形成的覆膜的组合物。(a)具有覆膜形成能力的聚合物,(b)选自醇和酮中的1种以上的挥发性物质,(c)塑化剂,(d)成分(c)以外的触感调节剂。(The present invention provides a composition for forming a coating directly on the skin by electrostatic spraying, which has excellent skin fusion, adhesion, and abrasion resistance, and which has good feel of the coating, and which is easily peeled off. The composition for forming a coating film of the present invention is a composition for forming a coating film formed of fibers directly on the skin by electrostatic spraying, which contains the following components (a), (b), (c), and (d). (a) A polymer having a film-forming ability, (b) 1 or more volatile substances selected from alcohols and ketones, (c) a plasticizer, and (d) a feel adjuster other than the component (c).)

1. A composition for forming a coating film, characterized in that,

for forming a coating film made of fibers directly on the skin by electrostatic spraying, the coating film-forming composition containing the following components (a), (b), (c) and (d),

(a) a polymer having a capability of forming a coating film,

(b) more than 1 volatile substance selected from alcohol and ketone,

(c) a plasticizer, a plasticizer and a plasticizer,

(d) a touch modifier other than the component (c).

2. The composition for forming a coating film according to claim 1,

has a viscosity of 2 to 3000 mPas at 25 ℃.

3. The composition for forming a coating film according to claim 1 or 2,

the mass ratio (a)/(c) of the component (a) to the component (c) is 0.033 to 300.

4. The composition for forming a coating film according to any one of claims 1 to 3,

the mass ratio (a)/(c) of the component (a) to the component (c) is 0.80 to 20.

5. The composition for forming a coating film according to any one of claims 1 to 4,

the mass ratio (c)/(d) of the component (c) to the component (d) is 0.0033 to 300.

6. The composition for forming a coating film according to any one of claims 1 to 5,

the mass ratio (c)/(d) of the component (c) to the component (d) is 0.030 to 10.

7. The composition for forming a coating film according to any one of claims 1 to 6,

the mass ratio (a)/(b) of the component (a) to the component (b) is 0.010 to 0.60.

8. The composition for forming a coating film according to any one of claims 1 to 7,

the mass ratio (a)/(b) of the component (a) to the component (b) is 0.060 to 0.45.

9. The composition for forming a coating film according to any one of claims 1 to 8,

the mass ratio of the component (a) to the component (d) is 0.033 to 300.

10. The composition for forming a coating film according to any one of claims 1 to 9,

the mass ratio of the component (a) to the component (d) is 0.10 to 15.

11. The composition for forming a coating film according to any one of claims 1 to 10,

the content of the component (a) is 1.0 to 30 mass%, and the content of the component (b) is 50 to 99 mass%.

12. The composition for forming a coating film according to any one of claims 1 to 11,

the content of the component (a) is 2.0 to 35 mass%, and the content of the component (b) is 45 to 97 mass%.

13. The composition for forming a coating film according to any one of claims 1 to 12,

the content of the component (c) is 0.10 to 30 mass%, and the content of the component (d) is 0.10 to 30 mass%.

14. The composition for forming a coating film according to any one of claims 1 to 13,

the content of the component (c) is 0.50 to 30 mass%, and the content of the component (d) is 0.50 to 40 mass%.

15. The composition for forming a coating film according to any one of claims 1 to 14,

(a) the polymer having a film-forming ability is at least 1 selected from partially saponified polyvinyl alcohol, low-saponified polyvinyl alcohol, fully saponified polyvinyl alcohol, polyvinyl butyral resin, polyurethane resin, polymethacrylic resin, oxazoline-modified silicone, polyvinyl acetal diethylaminoacetate, and polylactic acid.

16. The composition for forming a coating film according to any one of claims 1 to 15,

(c) the plasticizer is at least 1 selected from polyhydric alcohol, polyoxyalkylene glycol, glycerol mono fatty acid ester, glycerol di fatty acid ester, malic acid diester, N-acyl amino acid ester, ethylhexyl methoxycinnamate and alkyl benzoate.

17. The composition for forming a coating film according to any one of claims 1 to 16,

(d) the feel modifier other than the component (c) is at least 1 selected from the group consisting of silicone oils, hydrocarbon oils, palmitates, isononanoates, neopentyl glycol diethylhexanoates, neopentyl glycol didecanates, and acylamino acid diesters.

18. The composition for forming a coating film according to any one of claims 1 to 17,

(d) the feel modifier other than the component (c) is at least 2 selected from the group consisting of silicone oils, hydrocarbon oils, isononanoates, neopentyl glycol diethylhexanoates and neopentyl glycol didecanates.

19. The composition for forming a coating film according to any one of claims 1 to 18,

(d) the feel modifier other than the component (c) contains a silicone oil and at least 1 selected from hydrocarbon oils, isononanoates, neopentyl glycol diethylhexanoates and neopentyl glycol didecanates.

20. The composition for forming a coating film according to any one of claims 1 to 19,

the composition for forming a coating film is used in combination with a skin care cosmetic applied to the skin by a method other than electrostatic spraying.

Technical Field

The present invention relates to compositions for forming a film directly on the skin by electrostatic spraying.

Background

Various methods of forming a coating film by electrostatic spraying are known. For example, patent document 1 describes a skin treatment method including a step of electrostatically spraying a composition onto the skin. The composition used in the method contains a liquid insulating material, a conductive material, a granular powder material and a thickener. As the composition, a cosmetic or skin care composition containing a pigment can be typically used. Specifically, a cosmetic foundation is used as the composition. That is, the invention described in patent document 1 is mainly conceived to electrostatically spray a cosmetic foundation for cosmetic purposes to make up the skin.

Patent document 2 describes a disposable cartridge used in an electrostatic spraying device for cosmetics. The electrostatic atomizer is a hand-held built-in type device. This electrostatic atomizer is used for spraying a cosmetic foundation in the same manner as in patent document 1.

Patent document 3 describes a method of improving the adhesion of a coating film by applying a liquid agent to the skin before or after the coating film is formed on the skin surface by an electrostatic spraying method.

(patent document 1) Japanese patent application laid-open No. 2006-104211

(patent document 2) Japanese patent application laid-open No. 2003-507165

(patent document 3) Japanese patent laid-open publication No. 2017-78062

Disclosure of Invention

The present invention relates to a composition for forming a coating film, which contains the following components (a), (b), (c) and (d) and is used for directly forming a coating film formed by fibers on skin by electrostatic spraying.

(a) Polymer having film-forming ability

(b) More than 1 volatile substance selected from alcohol and ketone

(c) Plasticizer agent

(d) Touch feeling modifier other than the component (c)

Drawings

Fig. 1 is a schematic diagram showing a configuration of an electrostatic atomizer to which the present invention is suitably applied.

Fig. 2 is a schematic view showing a state of an electrostatic spraying method using an electrostatic spraying apparatus.

Detailed Description

When a film is formed on the skin by electrostatic spraying according to the methods described in patent documents 1 and 2, the adhesion between the skin and the film formed by electrostatic spraying is insufficient, and the film may be damaged or peeled off by external force such as friction. In addition, when a coating film is formed on the skin by the method described in patent document 3, although the adhesion of the coating film is improved to some extent, further improvement in adhesion and rubbing resistance is required, and further skin fusion properties and good touch feeling of the coating film when electrostatic spraying is performed on the skin to which the skin care cosmetic is applied in advance are also required. Further, there is room for improvement in the degree of easy peeling of a coating film formed on the skin by electrostatic spraying.

Accordingly, the present invention relates to a composition for forming a coating directly on the skin by electrostatic spraying, which has excellent skin fusion properties, adhesion, and abrasion resistance, and which gives a coating having good feel and is easily peeled off.

Accordingly, the present inventors have conducted various studies on the composition of an electrostatic spray composition for forming a coating on the skin, not a composition to be applied before or after forming a coating on the skin by an electrostatic spray method, and as a result, have found that a coating directly formed on the skin by electrostatic spraying is excellent in skin fusion property, adhesion property, and rubbing resistance, and is also good in touch feeling, and is easily peeled off, by using a plasticizer and a touch feeling modifier in addition to a polymer having a coating forming ability and a volatile substance, thereby completing the present invention.

If a coating formed of fibers is formed directly on the skin by electrostatic spraying using the composition of the present invention, the resulting coating has the following characteristics: the film is excellent in skin fusion, adhesion and abrasion resistance, has a good tactile sensation, and is easily peeled off. In addition, when the skin to which the skin care cosmetic is applied in advance is electrostatically sprayed or when the skin care cosmetic is applied after a coating film is formed on the skin by electrostatic spraying, the coating film has excellent compatibility with the skin.

The composition for forming a coating film of the present invention is a composition for forming a coating film made of fibers directly on the skin by electrostatic spraying, and contains the above-mentioned components (a), (b), (c) and (d). In the present invention, the coating film made of fibers means a coating film containing fibers formed of the component (a), and a liquid may be present in the fiber other than the fibers, for example, in the periphery of the fibers.

The polymer having a film-forming ability as the component (a) is usually a substance that can be dissolved in the volatile substance as the component (b). Here, the term "dissolved" means that the component (a) is dispersed in the component (b) at 20 ℃ when the component (a) and the component (b) are mixed, and the dispersed state is visually uniform, and preferably visually transparent or translucent.

As the polymer having a film-forming ability, an appropriate polymer is used depending on the properties of the volatile substance of the component (b). Specifically, polymers having a film-forming ability are roughly classified into water-soluble polymers and water-insoluble polymers. In the present specification, "water-soluble polymer" means a polymer having the following properties: after 1g of a polymer was weighed under an atmosphere of 1 atmosphere at 23 ℃, the polymer was immersed in 10g of ion-exchanged water, and after 24 hours, 0.5g or more of the immersed polymer was dissolved in water. On the other hand, in the present specification, the "water-insoluble polymer" refers to a polymer having the following properties: after 1g of a polymer was weighed under an atmosphere of 1 atmosphere at 23 ℃, the polymer was immersed in 10g of ion-exchanged water, and after 24 hours, only less than 0.5g of the immersed polymer was dissolved in water.

Examples of the water-soluble polymer having a coating film-forming ability include: mucopolysaccharides such as pullulan, hyaluronic acid, chondroitin sulfate, poly-gamma-glutamic acid, modified corn starch, beta-glucan, glucooligosaccharide, heparin, keratan sulfate, etc.; natural polymers such as cellulose, pectin, xylan, lignin, glucomannan, galacturonic acid, psyllium seed gum, tamarind gum, gum arabic, tragacanth gum, soybean water-soluble polysaccharide, alginic acid, carrageenan, laminaran, agar (agarose), algin, methyl cellulose, hydroxypropyl cellulose, and hydroxypropyl methyl cellulose; partially saponified polyvinyl alcohol (in the case where a crosslinking agent is not used), low-saponified polyvinyl alcohol, polyvinyl pyrrolidone (PVP), polyethylene oxide, sodium polyacrylate, and other synthetic polymers. These water-soluble polymers can be used in 1 kind or in combination of 2 or more kinds. Among these water-soluble polymers, synthetic polymers such as pullulan, partially saponified polyvinyl alcohol, low saponified polyvinyl alcohol, polyvinyl pyrrolidone, and polyethylene oxide are preferably used in view of ease of production of a coating film. When polyethylene oxide is used as the water-soluble polymer, the number average molecular weight thereof is preferably 5 to 300 ten thousand, more preferably 10 to 250 ten thousand.

On the other hand, examples of the water-insoluble polymer having a film-forming ability include completely saponified polyvinyl alcohol capable of being insolubilized after the formation of a film, partially saponified polyvinyl alcohol capable of being crosslinked after the formation of a film by using a crosslinking agent in combination, oxazoline-modified silicone such as poly (N-propionylethyleneimine) graft-dimethylsiloxane/γ -aminopropylmethylsiloxane copolymer, polyvinylacetal diethylaminoacetate, zein (zein, a main component of zein), polyester, polylactic acid (PLA), polyacrylonitrile resin, acrylic resin such as polymethacrylic resin, polystyrene resin, polyvinylbutyral resin, polyethylene terephthalate resin, polybutylene terephthalate resin, polyurethane resin, and the like, Polyamide resins, polyimide resins, polyamideimide resins, and the like. These water-insoluble polymers can be used in 1 kind or in combination of 2 or more kinds. Among these water-insoluble polymers, completely saponified polyvinyl alcohol that can be insolubilized after the formation of a coating film, partially saponified polyvinyl alcohol that can be crosslinked after the formation of a coating film by using a crosslinking agent in combination, polyvinyl butyral resin, polyurethane resin, oxazoline-modified silicone such as poly (N-propionylethyleneimine) graft-dimethylsiloxane/γ -aminopropylmethylsiloxane copolymer, polyvinyl acetal diethylaminoacetate, zein, and the like are preferably used.

As the component (a), a water-insoluble polymer having a film-forming ability is preferable, and 1 or 2 or more selected from partially saponified polyvinyl alcohol, low saponified polyvinyl alcohol, fully saponified polyvinyl alcohol, polyvinyl butyral resin, polyurethane resin, polymethacrylic acid resin, oxazoline-modified silicone, polyvinyl acetal diethylaminoacetate, and polylactic acid are more preferable.

The content of the component (a) in the composition for forming a coating film of the present invention is preferably 1.0% by mass or more, more preferably 2.0% by mass or more, further preferably 4.0% by mass or more, further preferably 6.0% by mass or more, and further preferably 8.0% by mass or more. Further, it is preferably 35% by mass or less, more preferably 30% by mass or less, further preferably 25% by mass or less, and further preferably 20% by mass or less. The content of the component (a) in the composition for forming a coating film is preferably 1.0 to 30% by mass, more preferably 2.0 to 25% by mass, even more preferably 4.0 to 20% by mass, and even more preferably 6.0 to 20% by mass. Further, it is preferably 2.0 to 35% by mass, more preferably 4.0 to 30% by mass, even more preferably 6.0 to 25% by mass, even more preferably 8.0 to 20% by mass. By containing the component (a) in the composition for forming a coating film in such a ratio, a target coating film can be efficiently formed and a coating film formed of fibers can be stably formed.

The volatile substance of the component (b) is a substance having volatility in a liquid state. In the composition for forming a coating film, the component (b) is blended in order to sufficiently charge the composition for forming a coating film placed in an electric field and then to be discharged from a nozzle tip toward the skin, and when the component (b) evaporates, the charge density of the composition for forming a coating film becomes excessive, and the composition for forming a coating film is miniaturized by coulomb repulsion, and the component (b) further evaporates, and finally a dry coating film is formed. For this purpose, the vapor pressure of the volatile substance at 20 ℃ is preferably 0.01kPa to 106.66kPa, more preferably 0.13kPa to 66.66kPa, even more preferably 0.67kPa to 40.00kPa, even more preferably 1.33kPa to 40.00kPa, even more preferably 2.40kPa to 40.00 kPa.

Among the volatile substances of the component (b), examples of the alcohol include monobasic chain aliphatic alcohols, monobasic cyclic aliphatic alcohols, and monobasic aromatic alcohols. Examples of the monobasic chain aliphatic alcohol include straight-chain or branched alcohols having 1 to 6 carbon atoms; examples of the monocyclic aliphatic alcohol include cyclic aliphatic alcohols having 4 to 6 carbon atoms; the monoaromatic alcohol includes benzyl alcohol, phenyl ethanol and the like. Specific examples thereof include methanol, ethanol, isopropanol, n-propanol, n-butanol, 2-butanol, isobutanol, 2-methyl-2-propanol, n-pentanol, 2-pentanol, 3-pentanol, 2-methyl-1-butanol, 2-methyl-2-butanol, 3-methyl-1-butanol, 3-methyl-2-butanol, neopentyl alcohol, n-hexanol, 2-hexanol, 3-hexanol, 2-methyl-1-pentanol, 3-methyl-1-pentanol, 4-methyl-1-pentanol, 2-methyl-2-pentanol, 3-methyl-2-pentanol, 4-methyl-2-pentanol, and mixtures thereof, 2-methyl-3-pentanol, 3-methyl-3-pentanol, 2-dimethyl-1-butanol, 2, 3-dimethyl-1-butanol, 3-dimethyl-1-butanol, 2, 3-dimethyl-2-butanol, 3-dimethyl-2-butanol, 2-ethyl-1-butanol, cyclobutanol, cyclopentanol, cyclohexanol, benzyl alcohol, phenyl ethanol, and the like. These alcohols may be used in combination of 1 or more than 2 selected from them.

Among the volatile substances of the component (b), ketones having an alkyl group having 2 carbon atoms of 1 to 4, such as acetone, methyl ethyl ketone, and methyl isobutyl ketone, may be mentioned as the ketone. These ketones may be used in 1 kind or in combination of 2 or more kinds.

The volatile substance(s) of component (b) may be used in combination of 1 or 2 or more selected from the above alcohols and ketones.

The volatile substance of the component (b) is more preferably 1 or 2 or more selected from ethanol, isopropanol and n-butanol, still more preferably 1 or 2 or more selected from ethanol and isopropanol, and still more preferably ethanol.

The content of the component (b) in the composition for forming a coating film is preferably 45% by mass or more, more preferably 50% by mass or more, further preferably 55% by mass or more, and further preferably 60% by mass or more. Further, it is preferably 98.8% by mass or less, more preferably 98% by mass or less, further preferably 97% by mass or less, further preferably 96% by mass or less, further preferably 94% by mass or less, further preferably 91% by mass or less, further preferably 88.5% by mass or less. The content of the component (b) in the composition for forming a coating film is preferably 50 mass% to 98.8 mass%, more preferably 50 mass% to 98 mass%, even more preferably 55 mass% to 96 mass%, and even more preferably 60 mass% to 94 mass%. Further, it is preferably 45% by mass or more and 97% by mass or less, more preferably 50% by mass or more and 94% by mass or less, still more preferably 50% by mass or more and 91% by mass or less, and still more preferably 50% by mass or more and 88.5% by mass or less. When the component (b) is contained in the composition for forming a coating film at such a ratio, a target coating film can be efficiently formed and a coating film formed of fibers can be stably formed. When the component (b) is contained in the coating film-forming composition at such a ratio, the component (b) can be efficiently and sufficiently volatilized from the coating film-forming composition when the electrostatic spraying method is performed.

The plasticizer as the component (c) is a component that imparts flexibility to a coating film formed of fibers on the skin by electrostatic spraying, thereby improving adhesion and abrasion resistance between the coating film and the skin, improving the following property of the coating film to the skin action, and improving the skin fusion property of the coating film. As the component (c), oils which are liquid at 20 ℃ are preferred. The feel modifier other than the component (c) as the component (d) is a component which, when used in combination with the component (c), imparts flexibility to a coating film formed of fibers on the skin by electrostatic spraying and improves the feel (e.g., smoothness, oily feel, roughness, and sticky feel) of the coating film.

The component (c) and the component (d) may be used in an appropriate amount depending on the properties of the polymer having a film-forming ability of the component (a).

The plasticizer as the component (c) is selected from those which are evaluated to have plasticizing performance with respect to the water-insoluble polymer having a film-forming ability as the component (a) according to the following evaluation criteria. The feel modifier other than the component (d) and the component (c) is selected from those which are evaluated as having no plasticizing property with respect to the water-insoluble polymer having a film-forming ability of the component (a) according to the following evaluation criteria.

(evaluation procedure)

(1) 8.8g of an oil agent for evaluation and the like was added to Mighty visual No.4 (manufactured by Maruemu Corporation).

(2) 1.2g of a polymer having a film-forming ability of the specific component (a) was added to the Vial of (1), and the polymer was sufficiently dispersed in the oil solution by stirring with a spatula, and the Mighty visual was covered with a cap. In the case where the polymer was in the form of powder, it was used as it is for evaluation. When the polymer was in the form of a solution, the solvent was removed to precipitate the polymer, and then the polymer was cut into small pieces of 3mm × 3mm × 3mm or less for evaluation. When a small piece of 3 mm. times.3 mm or less was formed at the time of polymer deposition, it was used for evaluation as it is. When the polymer was in the form of a film, the film was cut into pieces of 3mm × 3mm × 3mm or less and used for evaluation.

(3) The vial of (2) was stirred by rotation at a rotation speed of 100R/min for a period of 1 week using a rotary mixer (MVR-3R (manufactured by AS ONE Corporation)). (Room temperature: 25 ℃ C.)

(4) The vial of (3) was left standing at 25 ℃ for 2 hours, and the state was visually observed.

(evaluation criteria)

Have plasticizing properties: the polymer is completely dissolved in an oil agent or the like (a transparent 1-phase solution), or the polymer and the oil agent or the like are mixed and formed into a gel. In the case where a part of the oil or the like is separated (polymer + oil phase and oil phase), the polymer + oil phase is in a gel state. (the shape of the polymer before evaluation was not maintained.)

No plasticizing properties: after standing the polymer settled and if shaken mixed the polymer redispersed. Upon further standing, the polymer was reprecipitated. No dissolution or gelation of the polymer occurred. (maintaining the shape of the polymer before evaluation)

The component (c) and the component (d) are not particularly limited as long as they are generally used in the cosmetic field, and for example, 1 kind or 2 or more kinds selected from polyhydric alcohols, polyoxyalkylene glycols, polyoxyalkylene alkyl ethers, ester oils, silicone oils, hydrocarbon oils, liquid oils, solid oils, higher alcohols, nonionic surfactants, and the like can be used in combination.

The polyhydric alcohol includes 2 to 6-membered polyhydric alcohols, for example, polyhydric alcohols such as ethylene glycol, propylene glycol, 1, 3-propanediol, glycerin, and 1, 3-butanediol.

Examples of the polyoxyalkylene glycol include: diethylene glycol, triethylene glycol, polyethylene glycol, dipropylene glycol, tripropylene glycol, polypropylene glycol, dibutylene glycol, tributylene glycol, polybutylene glycol, diglycerin, triglycerol, polyglycerol, polyoxyalkylene glycol (containing 1 or more kinds of alkylene oxides such as ethylene oxide, propylene oxide, and butylene oxide as oxyalkylene structural units) and a mixture thereof, polyoxyethylene glycerol, polyoxypropylene glycerol ether, polyoxybutylene glycerol ether, polyoxyalkylene glycerol ether (containing 1 or more kinds of alkylene oxides such as ethylene oxide, propylene oxide, and butylene oxide as oxyalkylene structural units), and a mixture thereof. Here, the polyoxyalkylene glycol preferably has an average molecular weight of 1000 or less, and more preferably has an average molecular weight of 600 or less.

Examples of the polyoxyalkylene alkyl ether include: polyoxyethylene lauryl ether, polyoxyethylene oleyl ether, polyoxypropylene lauryl ether, polyoxypropylene oleyl ether, polyoxybutylene lauryl ether, polyoxybutylene oleyl ether, polyoxyalkylene alkyl ether (an alkyl ether containing 1 or more kinds of alkylene oxides such as ethylene oxide, propylene oxide, and butylene oxide as oxyalkylene structural units and containing a linear or branched alkyl group having about 1 to 20 carbon atoms), polyoxyethylene methyl glycoside, polyoxypropylene methyl glycoside, polyoxyalkylene methyl glycoside (containing 1 or more kinds of alkylene oxides such as ethylene oxide, propylene oxide, and butylene oxide as oxyalkylene structural units), and mixtures thereof.

As the ester oil, there may be mentioned: caprylic acid esters such as cetyl octanoate, lauric acid esters such as hexyl laurate, myristic acid esters such as octyldodecyl myristate, palmitic acid esters such as octyl palmitate, stearic acid esters such as isocetyl stearate, isostearic acid esters such as isopropyl isostearate, isopalmitic acid esters such as octyl isopalmitate, oleic acid esters such as isodecyl oleate, adipic acid diesters such as diisopropyl adipate, sebacic acid diesters such as diethyl sebacate, malic acid diesters such as diisostearyl malate, isononyl isononanoate, isotridecyl isononanoate, ethyl hexanoate such as cetyl ethylhexanoate, fatty acid esters such as neopentyl glycol diethylhexanoate, pentaerythritol tetraethylhexanoate, glyceryl triisostearate, glyceryl diisostearate, glyceryl triisooctanoate, diglycerol dilinoleate (phytosterol/behenyl) and dilinoleate (phytosterol/isostearyl/cetyl/stearyl/isostearyl/isostearic acid ester) Cetyl/stearyl/behenyl) ester, macadamia nut fatty acid phytosterol esters, pentaerythritol tetrakis (behenate/benzoate/ethylhexanoate), tripropylene glycol dineopentanoate, diisopropyl sebacate, isodecyl neopentanoate, hexyldecyl dimethyloctanoate, cetyl lactate, myristyl lactate, lanolin acetate, cholesterol 12-hydroxystearate, ethylene glycol di-2-ethylhexanoate, dipentaerythritol fatty acid esters, N-alkyldiol monoisostearate, neopentyl glycol didecanoate, diisostearyl malate, glycerol di-2-heptylundecanoate, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane tri-isostearate, glycerol tri-iso-palmitate, trimethylolpropane tri-isostearate, glycerol tri-isostearate, Cetyl 2-ethylhexanoate, pentaerythritol tetra-2-ethylhexanoate, glycerol tri-2-ethylhexanoate, 2-ethylhexyl palmitate, glycerol trimyristate, glycerol tri-2-heptylundecanoate, methyl ricinoleate, glycerol acetate, 2-heptylundecyl palmitate, diisobutyl adipate, N-lauroyl-L-glutamic acid-2-octyldodecyl ester, di-2-heptylundecyl adipate, ethyl laurate, di-2-ethylhexyl sebacate, 2-hexyldecyl myristate, 2-hexyldecyl palmitate, di-2-hexyldecyl adipate, triethyl citrate, fatty acid monoglyceride, fatty acid ester, fatty acid, And glycerides such as diglyceride fatty acid esters and triglyceride fatty acid esters, acylamino acid diesters such as lauroyl glutamic acid di (phytosterol/octyldodecyl) ester, ultraviolet absorbers such as ethylhexyl methoxycinnamate, and alkyl benzoates.

Examples of the silicone oil include: dimethicone (dimethicone)), methylphenylpolysiloxane, diphenylpolysiloxane (diphenyldimethicone), diphenylsilylphenyltrimethicone, methylhydrogenpolysiloxane, aminotendimeticone, aminoethylaminopropyldimethicone, aminopropyldimethicone, oxazoline-modified silicone, PEG-11 methyletherdimethicone, PEG/PPG-20/22 butylether dimethicone, polyglycerin-3-disiloxane ethyldimethicone, lauryl polyglycerin-3-disiloxane ethyldimethicone, and other chain silicones, cyclopentasiloxanemethyltrimethicone, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane and other cyclic silicones, silicone resins forming three-dimensional network structures, silicone resins for producing three-, Silicone rubber, and the like.

Examples of the hydrocarbon oil include liquid paraffin, squalane, squalene, paraffin, isoparaffin, ceresin, isohexadecane, isododecane, ceresin, pristane, paraffin, vaseline, and microcrystalline wax.

Examples of the liquid oils and fats include linseed oil, camellia oil, macadamia nut oil, corn oil, mink oil, olive oil, avocado oil, camellia oil, castor oil, safflower oil, rapeseed oil, soybean oil, peanut oil, triglycerin, tricaprylin, triglycerin, apricot oil, cinnamon oil, jojoba oil, grapeseed oil, sunflower oil, Almond oil (Almond oil), sesame oil, wheat germ oil, rice bran oil, cottonseed oil, tea seed oil, evening primrose oil, egg yolk oil, neatsfoot oil, liver oil, pentaerythritol tetraoctanoate, and the like.

Examples of the solid fat include cacao butter, coconut oil, palm kernel oil, beef tallow, mutton tallow, lard, horse oil, hydrogenated castor oil, wood wax, shea butter, and the like.

Examples of the higher alcohol include saturated linear monohydric alcohols and unsaturated monohydric alcohols. Examples of the saturated linear monohydric alcohol include dodecanol (lauryl alcohol), tridecanol, tetradecanol (myristyl alcohol), pentadecanol, hexadecanol (cetyl alcohol), heptadecanol, octadecanol (stearyl alcohol), nonadecanol, eicosanol (arachidyl alcohol), heneicosanol, docosanol (behenyl alcohol), tricosanol, tetracosanol (carnauba alcohol), pentacosanol, and hexacosanol (ceryl alcohol). Examples of the unsaturated monohydric alcohol include oleyl alcohol and elaidyl alcohol.

Examples of the nonionic surfactant include monofatty acid polyethylene glycol esters such as polyoxyethylene monolaurate and polyoxyethylene monostearate, polyoxypropylene monolaurate, monofatty acid polypropylene glycol esters such as polyoxypropylene monostearate, polyoxybutylene monolaurate and polyoxybutylene monostearate, polyoxyalkylene glycol monofatty acid esters (containing at least 1 alkylene oxide such as ethylene oxide, propylene oxide and butylene oxide as oxyalkylene structural units), mixtures thereof, polyoxyalkylene glycol difatty esters (containing at least 1 alkylene oxide such as ethylene oxide, propylene oxide and butylene oxide as oxyalkylene structural units, and 2 fatty acids which may be the same or different) and mixtures thereof, fatty acid polyoxyethylene sorbitan esters, and the like, Maltitol hydroxy aliphatic alkyl ethers, alkylated polysaccharides, alkyl glycosides, sucrose fatty acid esters, polyoxyethylene hydrogenated castor oil glycerin, polyoxyethylene sorbitol fatty acid esters, polyoxyethylene-polyoxypropylene block copolymers, tetrapolyoxyethylene-tetrapolyoxypropylene-ethylenediamine condensates, polyoxyethylene-beeswax-lanolin derivatives, alkanolamides, polyoxyethylene-propylene glycol fatty acid esters, polyoxyethylene-alkylamines, polyoxyethylene-fatty acid amides, alkyl ethoxydimethyl amine oxides, trioleoyl phosphoric acid, polyoxyethylene fatty acid glycerides, and the like, and alkyl glyceryl ethers such as isostearyl glyceryl ether, isodecyl glyceryl ether, 2-ethylhexyl glyceryl ether, and the like.

When the polymer having a film-forming ability as the component (a) is a polyvinyl butyral resin or the like, a preferable combination of the component (c) and the component (d) is as follows.

As the plasticizer (c), compounds which easily interact with hydroxyl groups, esters, and acetal moieties in the structure of the polyvinyl butyral resin are preferable, and specific examples thereof include polyhydric alcohols, polyoxyalkylene glycols (polyethers), polyoxyalkylene alkyl ethers, specific ester oils, specific silicone oils, and nonionic (nonionic) surfactants, and from the viewpoint of improving the abrasion resistance and the feel of the coating, polyhydric alcohols, polyoxyalkylene glycols, monoglyceride, diglyceride, malate diester, N-acylamino acid esters, methoxyethylhexyl cinnamate, and alkyl benzoate are preferably contained. One selected from 1 kind thereof or 2 or more kinds thereof may be used in combination.

The polyhydric alcohol includes 2 to 6-membered polyhydric alcohols, for example, ethylene glycol, propylene glycol, 1, 3-propanediol, glycerin, 1, 3-butanediol, and the like.

Examples of the polyoxyalkylene glycol include: diethylene glycol, triethylene glycol, polyethylene glycol, dipropylene glycol, tripropylene glycol, polypropylene glycol, dibutylene glycol, tributylene glycol, polybutylene glycol, diglycerin, triglycerol, polyglycerol, polyoxyalkylene glycol (containing 1 or more kinds of alkylene oxides such as ethylene oxide, propylene oxide, and butylene oxide as oxyalkylene structural units) and a mixture thereof, polyoxyethylene glycerol, polyoxypropylene glycerol ether, polyoxybutylene glycerol ether, polyoxyalkylene glycerol ether (containing 1 or more kinds of alkylene oxides such as ethylene oxide, propylene oxide, and butylene oxide as oxyalkylene structural units), and a mixture thereof.

Examples of the polyoxyalkylene alkyl ether include: polyoxyethylene lauryl ether, polyoxyethylene oleyl ether, polyoxypropylene lauryl ether, polyoxypropylene oleyl ether, polyoxybutylene lauryl ether, polyoxybutylene oleyl ether, polyoxyalkylene alkyl ether (an alkyl ether containing 1 or more kinds of alkylene oxides such as ethylene oxide, propylene oxide, and butylene oxide as oxyalkylene structural units and containing a linear or branched alkyl group having about 1 to 20 carbon atoms), polyoxyethylene methyl glycoside, polyoxypropylene methyl glycoside, polyoxyalkylene methyl glycoside (containing 1 or more kinds of alkylene oxides such as ethylene oxide, propylene oxide, and butylene oxide as oxyalkylene structural units), and mixtures thereof.

Specific ester oils include, for example: examples of the ultraviolet absorber include monoglycerides such as glyceryl monostearate, glyceryl monoisostearate, glyceryl monooleate and glyceryl monopalmitate, diglycerides such as glyceryl distearate, glyceryl diisostearate, glyceryl dioleate and glyceryl dipalmitate, lactates such as cetyl lactate and myristyl lactate, malic acid diesters such as triethyl citrate and diisostearyl malate, amino acid esters such as amino acid ester-2, acyl amino acid esters such as isopropyl lauroyl sarcosinate, ultraviolet absorbers such as ethylhexyl methoxycinnamate, and alkyl benzoates.

Specific examples of the silicone oil include: amino-terminated dimethyl silicone oil, amino-ethyl amino-propyl dimethyl silicone oil, oxazoline modified organic silicone oil, PEG-11 methyl ether dimethyl silicone oil, PEG/PPG-20/22 butyl ether dimethyl silicone oil, polyglycerol-3-disiloxane ethyl dimethyl silicone oil, lauryl polyglycerol-3-disiloxane ethyl dimethyl silicone oil and the like.

Examples of the nonionic surfactant include monofatty acid polyethylene glycol esters such as polyoxyethylene monolaurate and polyoxyethylene monostearate, polyoxypropylene monolaurate, monofatty acid polypropylene glycol esters such as polyoxypropylene monostearate, polyoxybutylene monolaurate and polyoxybutylene monostearate, polyoxyalkylene glycol monofatty acid esters (containing at least 1 alkylene oxide such as ethylene oxide, propylene oxide and butylene oxide as oxyalkylene structural units), mixtures thereof, polyoxyalkylene glycol difatty esters (containing at least 1 alkylene oxide such as ethylene oxide, propylene oxide and butylene oxide as oxyalkylene structural units, and 2 fatty acids which may be the same or different) and mixtures thereof, fatty acid polyoxyethylene sorbitan esters, and the like, Maltitol hydroxy aliphatic alkyl ethers, alkylated polysaccharides, alkyl glycosides, sucrose fatty acid esters, polyoxyethylene hydrogenated castor oil glycerin, polyoxyethylene sorbitol fatty acid esters, polyoxyethylene-polyoxypropylene block copolymers, tetrapolyoxyethylene-tetrapolyoxypropylene-ethylenediamine condensates, polyoxyethylene-beeswax-lanolin derivatives, alkanolamides, polyoxyethylene-propylene glycol fatty acid esters, polyoxyethylene-alkylamines, polyoxyethylene-fatty amides, alkyl ethoxydimethyl amine oxides, trioleyl phosphoric acid, polyoxyethylene fatty acid glycerides, and the like. These plasticizers may be used in combination of 1 or more than 2.

When the polymer having a film-forming ability as the component (a) is a polyvinyl butyral resin or the like, the component (d) is preferably an oil agent having no polar functional group or a small number of polar functional groups, and more preferably an oil agent having a structure in which the number of hydroxyl groups is 1 or less. Specific examples of the component (d) include specific silicone oils, specific ester oils, hydrocarbon oils, liquid oils, solid oils, higher alcohols, and the like, and from the viewpoint of improving the abrasion resistance and the feel of the coating film, at least 1 selected from the group consisting of silicone oils, hydrocarbon oils, palmitates, isononanoates, neopentyl glycol diethylhexanoates, neopentyl glycol didecanoate, and acylamino acid diesters is preferably contained, and from the viewpoint of stabilizing spinning performance and environmental changes such as humidity in addition to the above-mentioned viewpoint, at least 1 selected from the group consisting of silicone oils, hydrocarbon oils, isononanoates, neopentyl glycol diethylhexanoates, and neopentyl glycol didecanoate is preferably contained. One selected from them may be used in 1 kind or 2 or more kinds may be used in combination, and more preferably 2 or more kinds may be used in combination.

Specific examples of the silicone oil include: chain silicones such as dimethylpolysiloxane (dimeticone), methylphenylpolysiloxane, diphenylpolysiloxane (diphenyldimeticone), diphenylsilylphenyltrimeticone and methylhydrogenpolysiloxane, cyclic silicones such as cyclopentasiloxanemethyltrimethicone, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane and dodecamethylcyclohexasiloxane, silicone resins having a three-dimensional network structure, silicone rubbers and the like.

As specific ester oils, there may be mentioned: octanoates such as cetyl octanoate, laurates such as hexyl laurate, myristates such as octyldodecyl myristate, palmitates such as octyl palmitate, stearates such as isocetyl stearate, isostearates such as isopropyl isostearate, isopalmitate such as octyl isopalmitate, oleates such as isodecyl oleate, diesters of adipic acid such as diisopropyl adipate, diesters of sebacic acid such as diethyl sebacate, diesters of malic acid such as diisostearyl malate, isononyl isononanoate, isotridecyl isononanoate, ethyl hexanoates such as cetyl ethylhexanoate, fatty acid esters such as neopentyl glycol diethylhexanoate, pentaerythritol tetraethylhexanoate, glycerol triisostearate, glycerol triisooctanoate, macadamia fatty acid plant sterol esters, pentaerythritol tetrakis (behenate/benzoic acid/ethyl hexanoate), fatty acid esters, Tripropylene glycol dineopentanoate, diisopropyl sebacate, isodecyl neopentanoate, dilinoleic acid (phytosterol/behenyl) dimer, dilinoleic acid (phytosterol/isostearyl/cetyl/stearyl/behenyl) dimer, hexyldecyl dimethyloctanoate, lanolin acetate, cholesterol 12-hydroxystearate, dipentaerythritol fatty acid ester, N-alkyl glycol monoisostearate, neopentyl glycol didecanoate, diisostearyl malate, glyceryl di-2-heptylundecanoate, glyceryl trioctanoate, glyceryl triisopalmitate, glyceryl tri-2-ethylhexanoate, glyceryl trimyristate, glyceryl tri-2-heptylundecanoate, etc, Ethylene glycol di-2-ethylhexanoate, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate, cetyl 2-ethylhexanoate, pentaerythritol tetra-2-ethylhexanoate, 2-ethylhexyl palmitate, methyl ricinoleate, glycerol acetate, 2-heptylundecyl palmitate, diisobutyl adipate, 2-octyldodecyl N-lauroyl-L-glutamate, di-2-heptylundecyl adipate, ethyl laurate, di-2-ethylhexyl sebacate, 2-hexyldecyl myristate, 2-hexyldecyl palmitate, di-2-hexyldecyl adipate, trimethylolpropane tri-2-ethylhexoate, trimethylolpropane tri-2-hexoate, trimethylolpropane tri-hexoate, cetylpalmitate, cetylglyceryl palmitate, cetylundecyl palmitate, pentaerythritol tetra-2-ethylhexoate, 2-ethylhexyl palmitate, glycerol stearate, And acylamino acid diesters such as lauroyl glutamic acid di (phytosterol/octyldodecyl) ester.

Examples of the hydrocarbon oil include liquid paraffin, squalane, squalene, paraffin, isoparaffin, ceresin, isohexadecane, isododecane, ceresin, pristane, paraffin, vaseline, and microcrystalline wax.

Examples of the liquid oils and fats include linseed oil, camellia oil, macadamia nut oil, corn oil, mink oil, olive oil, avocado oil, camellia oil, castor oil, safflower oil, rapeseed oil, soybean oil, peanut oil, triglycerin, tricaprylin, triglycerin, apricot oil, cinnamon oil, jojoba oil, grapeseed oil, sunflower oil, almond oil, sesame oil, wheat germ oil, rice bran oil, cottonseed oil, tea seed oil, evening primrose oil, egg yolk oil, neatsfoot oil, liver oil, and pentaerythritol tetraoctanoate.

Examples of the solid fat include cacao butter, coconut oil, palm kernel oil, beef tallow, mutton tallow, lard, horse oil, hydrogenated castor oil, wood wax, shea butter, and the like.

Examples of the higher alcohol include saturated linear monohydric alcohols and unsaturated monohydric alcohols. Examples of the saturated linear monohydric alcohol include dodecanol (lauryl alcohol), tridecanol, tetradecanol (myristyl alcohol), pentadecanol, hexadecanol (cetyl alcohol), heptadecanol, octadecanol (stearyl alcohol), nonadecanol, eicosanol (arachidyl alcohol), heneicosanol, docosanol (behenyl alcohol), tricosanol, tetracosanol (carnauba alcohol), pentacosanol, and hexacosanol (ceryl alcohol). Examples of the unsaturated monohydric alcohol include oleyl alcohol and elaidyl alcohol.

The content of the component (c) in the composition for forming a coating film is preferably 0.10% by mass or more, more preferably 0.50% by mass or more, still more preferably 1.0% by mass or more, and still more preferably 1.5% by mass or more. Further, it is preferably 30% by mass or less, more preferably 25% by mass or less, further preferably 20% by mass or less, and further preferably 15% by mass or less. The content of the component (c) in the composition for forming a coating film is preferably 0.10 mass% or more and 30 mass% or less, more preferably 0.50 mass% or more and 25 mass% or less, still more preferably 1.0 mass% or more and 20 mass% or less, and still more preferably 1.0 mass% or more and 15 mass% or less. Further, it is preferably 0.50 to 30% by mass, more preferably 1.0 to 25% by mass, still more preferably 1.0 to 20% by mass, and still more preferably 1.5 to 15% by mass. When the content of the component (c) is within this range, flexibility can be imparted to the film formed of fibers on the skin by electrostatic spraying, adhesion to the skin and abrasion resistance of the film are improved, the following ability of the film to the skin action is improved, and the skin fusion property of the film is improved.

The content of the component (d) in the composition for forming a coating film is preferably 0.10% by mass or more, more preferably 0.50% by mass or more, still more preferably 1.0% by mass or more, and still more preferably 2.0% by mass or more. Further, it is preferably 40% by mass or less, more preferably 35% by mass or less, further preferably 30% by mass or less, further preferably 25% by mass or less, further preferably 20% by mass or less, further preferably 15% by mass or less. The content of the component (d) in the composition for forming a coating film is preferably 0.10 to 30% by mass, more preferably 0.50 to 25% by mass, even more preferably 1.0 to 20% by mass, and even more preferably 1.0 to 15% by mass. Further, it is preferably 0.50 to 40% by mass, more preferably 1.0 to 35% by mass, still more preferably 2.0 to 30% by mass, and still more preferably 2.0 to 25% by mass. When the content of the component (d) is within this range, when the component (d) is used in combination with the component (c), flexibility can be imparted to a film formed of fibers on the skin by electrostatic spraying, and the feel of the film is improved.

The content mass ratio ((a)/(c)) of the component (a) to the component (c) in the composition for forming a coating film is preferably 0.033 or more, more preferably 0.10 or more, further preferably 0.20 or more, further preferably 0.40 or more, further preferably 0.80 or more, further preferably 1.0 or more, and further preferably 1.5 or more, from the viewpoint of flexibility, skin-fusion property, adhesiveness, and abrasion resistance of a coating film formed from fibers by electrostatic spraying. Further, it is preferably 300 or less, more preferably 60 or less, further preferably 30 or less, further preferably 20 or less, further preferably 15 or less, further preferably 10 or less, further preferably 8.0 or less. The (a)/(c) ratio is preferably 0.033 to 300, more preferably 0.10 to 60, still more preferably 0.20 to 30, yet more preferably 0.40 to 10, and still more preferably 1.0 to 10. Further, it is preferably 0.80 to 20, more preferably 1.0 to 15, further preferably 1.0 to 10, and further preferably 1.5 to 8.0.

The content mass ratio ((c)/(d)) of the component (c) to the component (d) in the composition for forming a coating film is preferably 0.0033 or more, more preferably 0.030 or more, even more preferably 0.050 or more, even more preferably 0.10 or more, and even more preferably 0.50 or more, from the viewpoints of flexibility, skin-fusion property, adhesiveness, and abrasion resistance of a coating film formed from fibers by electrostatic spraying, and improvement in the feel of a coating film. Further, it is preferably 300 or less, more preferably 60 or less, further preferably 30 or less, further preferably 10 or less, further preferably 7.0 or less, further preferably 5.0 or less, further preferably 3.5 or less. The ratio (c)/(d) is preferably 0.0033 to 300, more preferably 0.030 to 60, still more preferably 0.10 to 30, and still more preferably 0.50 to 10. Further, it is preferably 0.030 to 10, more preferably 0.050 to 7.0, further preferably 0.10 to 5.0, and further preferably 0.10 to 3.5.

The content mass ratio ((a)/(b)) of the component (a) to the component (b) in the composition for forming a coating is preferably 0.010 or more, more preferably 0.060 or more, further preferably 0.080 or more, further preferably 0.10 or more, further preferably 0.11 or more, and further preferably 0.12 or more, from the viewpoint of efficiently forming a target coating, stably forming a coating made of fibers, and from the viewpoint of efficiently and sufficiently volatilizing the component (b) from the composition for forming a coating when the electrostatic spraying method is performed. Further, it is preferably 0.60 or less, more preferably 0.45 or less, further preferably 0.35 or less, further preferably 0.33 or less, further preferably 0.30 or less, further preferably 0.25 or less, further preferably 0.20 or less, further preferably 0.18 or less. The ratio (a)/(b) is preferably 0.010 to 0.60, more preferably 0.060 to 0.33, still more preferably 0.10 to 0.25, yet more preferably 0.11 to 0.20, and yet more preferably 0.12 to 0.18. Further, it is preferably 0.060 to 0.45, more preferably 0.080 to 0.35, further preferably 0.10 to 0.33, further preferably 0.11 to 0.30, and further preferably 0.12 to 0.25.

The content mass ratio ((a)/(d)) of the component (a) to the component (d) in the composition for forming a coating is preferably 0.033 or more, more preferably 0.10 or more, even more preferably 0.20 or more, even more preferably 0.40 or more, even more preferably 0.50 or more, even more preferably 1.0 or more, from the viewpoint of improving the feel of a coating formed from fibers by electrostatic spraying, and the like. Further, it is preferably 300 or less, more preferably 60 or less, further preferably 30 or less, further preferably 15 or less, further preferably 10 or less, further preferably 8.0 or less, further preferably 7.0 or less. The ratio (a)/(d) is preferably 0.033 to 300, more preferably 0.10 to 60, still more preferably 0.20 to 30, yet more preferably 0.40 to 10, and still more preferably 1.0 to 10. Further, it is preferably 0.10 to 15, more preferably 0.20 to 10, further preferably 0.50 to 8.0, and further preferably 0.50 to 7.0.

The composition for forming a coating film may contain, in addition to the above components, a conductivity control agent, an oil agent other than the components (c) and (d), a coloring pigment, an extender pigment, a dye, a perfume, a repellent, an antioxidant, a stabilizer, an antiseptic, various vitamins, water, and the like. The conductivity control agent is preferably an alkali metal salt or an ammonium salt, more preferably an ionic surfactant, and still more preferably 1 or 2 or more selected from a cationic surfactant and an anionic surfactant, from the viewpoint of conductivity improvement.

The content of the conductivity control agent in the composition for forming a coating is not particularly limited as long as the conductivity of the composition is within the above range, and is preferably 0.01% by mass or more and 10% by mass or less, more preferably 0.05% by mass or more, further preferably 0.1% by mass or more, further preferably 8% by mass or less, further preferably 6% by mass or less, further preferably 2.5% by mass or less, and further preferably 2% by mass or less, from the viewpoint of stably forming a coating and from the viewpoint of preventing excessive increase in conductivity.

The viscosity of the composition for forming a coating film is preferably 2mPa · s or more, more preferably 5mPa · s or more, further preferably 10mPa · s or more, further preferably 30mPa · s or more, further preferably 50mPa · s or more, and further preferably 80mPa · s or more at 25 ℃. Further, it is preferably 3000mPa · s or less, more preferably 2000mPa · s or less, further preferably 1500mPa · s or less, further preferably 1000mPa · s or less, further preferably 800mPa · s or less, further preferably 500mPa · s or less. The viscosity range of the composition for forming a coating film is preferably 2 to 3000 mPas, more preferably 5 to 2000 mPas, even more preferably 10 to 1500 mPas, even more preferably 30 to 1000 mPas, even more preferably 50 to 800 mPas, even more preferably 80 to 500 mPas. The viscosity of the composition for forming a coating film was measured at 25 ℃ using a B-type viscometer. As the type B viscometer, for example, a type B viscometer (TVB-10M) manufactured by Toyobo industries, Ltd. The measurement temperature was set to 25 ℃ under the measurement conditions. The measurement temperature at this time is the temperature of the composition for forming a coating film. The type of the rotor and the number of rotations of the rotor may be selected in accordance with the viscosity of the composition for forming a coating film, and the specification of the measuring equipment used. For example, in the case of using a B-type viscometer (TVB-10M) manufactured by eastern industries co., ltd, the viscosity of the composition for forming a coating film can be measured at 6rpm using a M2 spindle when the viscosity is 2500mPa · s or more, at 12rpm using a M2 spindle when the viscosity is 1000mPa · s or more and less than 2500mPa · s, at 30rpm using a M2 spindle when the viscosity is 500mPa · s or more and less than 1000mPa · s, at 60rpm using a M2 spindle when the viscosity is 100mPa · s or more and less than 500mPa · s, and at 60rpm using a M1 spindle when the viscosity is less than 100mPa · s. Further, the measurement conditions other than the above measurement conditions are described in the specification of the type B viscometer (TVB-10M) manufactured by eastern mechanical co.

Next, a method for forming a coating film made of fibers directly on the skin by electrostatic spraying using the composition for forming a coating film of the present invention will be described.

The composition for forming a coating film is directly sprayed to a part of human skin where a coating film is to be formed by an electrostatic spraying method. The electrostatic spraying method includes a step of electrostatically spraying the composition for forming a coating film on the skin using an electrostatic spraying device. An electrostatic atomizer basically comprises a container for containing the composition, a nozzle for ejecting the composition, a supply device for supplying the composition contained in the container to the nozzle, and a power source for applying a voltage to the nozzle.

Fig. 1 is a schematic diagram showing the structure of an electrostatic atomizer to which the present invention is suitably applied. The electrostatic atomizer 10 shown in the figure has a low voltage power supply 11. The low voltage power supply 11 is capable of generating a voltage of several V to ten V. For the purpose of improving the portability of the electrostatic atomizer 10, the low-voltage power supply 11 is preferably constituted by 1 or 2 or more batteries. In addition, the use of a battery as the low-voltage power supply 11 also has an advantage that it can be easily replaced as needed. An AC adapter or the like may be used as the low-voltage power supply 11 instead of the battery.

The electrostatic atomizer 10 also has a high voltage power supply 12. The high-voltage power supply 12 is connected to the low-voltage power supply 11, and includes a circuit (not shown) for boosting the voltage generated by the low-voltage power supply 11 to a high voltage. The booster circuit is generally constituted by a transformer, a capacitor, a semiconductor element, and the like.

The electrostatic atomizer 10 further has an auxiliary circuit 13. The auxiliary circuit 13 is interposed between the low voltage power supply 11 and the high voltage power supply 12, and has a function of adjusting the voltage of the low voltage power supply 11 to stably operate the high voltage power supply 12. The auxiliary circuit 13 has a function of controlling the rotation speed of a motor included in a micro gear pump 14 described later. The amount of the coating film-forming composition supplied from the container 15 of the coating film-forming composition to the micro gear pump 14 is controlled by controlling the rotation speed of the motor. A switch SW is provided between the auxiliary circuit 13 and the low-voltage power supply 11, and the electrostatic atomizer 10 can be operated/stopped by switching the switch SW.

The electrostatic spraying device 10 also has a nozzle 16. The nozzle 16 is made of various conductive materials such as metal, or non-conductive materials such as plastic, rubber, and ceramics, and is formed in a shape capable of ejecting the composition for forming a coating film from the tip thereof. The minute space through which the composition for forming a coating film flows in the nozzle 16 is formed along the longitudinal direction of the nozzle 16. The size of the cross section of the minute space is preferably 100 μm or more and 1000 μm or less in diameter.

The nozzle 16 communicates with the micro gear pump 14 via a line 17. The conduit 17 may be electrically conductive or may be electrically non-conductive. In addition, the nozzle 16 is electrically connected to the high voltage power supply 12. This enables a high voltage to be applied to the nozzle 16. At this time, in order to prevent a large current from flowing when a human body directly contacts the nozzle 16, the nozzle 16 and the high voltage power supply 12 are electrically connected via a current limiting resistor 19.

The micro gear pump 14 communicating with the nozzle 16 through the pipe 17 functions as a supply device for supplying the coating film forming composition stored in the container 15 to the nozzle 16. The micro gear pump 14 operates upon receiving power supply from the low voltage power supply 11. The micro gear pump 14 is configured to supply a predetermined amount of the composition for forming a coating film to the nozzle 16 under the control of the auxiliary circuit 13.

The reservoir 15 is connected to the micro gear pump 14 via a flexible line 18. The container 15 contains a composition for forming a coating film. The container 15 is preferably made in a replaceable form of the cartridge (cartridge) type.

The electrostatic atomizer 10 having the above-described structure can be used as shown in fig. 2, for example. Fig. 2 shows a hand-held electrostatic atomizer 10 having a size that can be held with one hand. In the electrostatic atomizer 10 shown in the figure, all the components of the configuration diagram shown in fig. 1 are housed in a cylindrical case 20. A nozzle (not shown) is disposed at one end 10a of the housing 20 in the longitudinal direction. The nozzle is disposed in the casing 20 so that the discharge direction of the composition coincides with the longitudinal direction of the casing 20 and is convex toward the skin. Since the nozzle tip is disposed so as to protrude toward the skin in the longitudinal direction of the housing 20, the coating film-forming composition is less likely to adhere to the housing, and the coating film can be stably formed.

When the electrostatic atomizer 10 is operated, a user, that is, a person who forms a coating film on a portion of skin to be coated by electrostatic atomization holds the atomizer 10 with his hand, and directs one end 10a of the atomizer 10, at which a nozzle (not shown) is disposed, toward an application site where electrostatic atomization is performed. Fig. 2 shows a state in which one end 10a of the electrostatic atomizer 10 is directed toward the inside of the forearm of the user. In this state, the switch of the apparatus 10 is turned on to perform the electrostatic spraying method. By applying a power source to the device 10, an electric field is generated between the nozzle and the skin. In the embodiment shown in fig. 2, a positive high voltage is applied to the nozzle, and the skin becomes a negative electrode. If an electric field is generated between the nozzle and the skin, the film-forming composition at the tip of the nozzle is polarized by electrostatic induction, the tip is tapered, and droplets of the charged film-forming composition are ejected from the tip of the taper into the air toward the skin along the electric field. When the component (b) as a solvent evaporates from the composition for forming a coating film which is ejected into a space and charged, the charge density on the surface of the composition for forming a coating film becomes excessive, and the composition is repeatedly made fine by coulomb repulsion and diffused in the space to reach the skin. In this case, by appropriately adjusting the viscosity of the composition for forming a coating film, it is also possible to evaporate a volatile substance as a solvent from the droplets in the process of being ejected into the space, solidify the polymer of the component (a) having a coating film forming ability as a solute, and form fibers by being elongated and deformed by a potential difference, thereby depositing the fibers at the application site. For example, when the viscosity of the composition for forming a coating film is increased, the composition is easily deposited in a fiber form on an application site. Thereby, a porous coating film composed of a deposition of fibers is formed on the surface of the application site. Such a porous coating film composed of a fiber deposit can also be formed by adjusting the distance between the nozzle and the skin or by applying a voltage to the nozzle.

During the electrostatic spraying process, a high potential difference is generated between the nozzle and the skin. However, since the impedance is very large, the current flowing through the human body is extremely small. The inventors of the present invention confirmed that: the current flowing in the human body during the electrostatic spraying method is several orders of magnitude smaller than the current flowing in the human body due to static electricity generated in ordinary life, for example.

When the deposit of the fibers is formed by the electrostatic spraying method, the thickness of the fibers is preferably 10nm or more, more preferably 50nm or more, when expressed as a circle-equivalent diameter. Further, it is preferably 3000nm or less, more preferably 1000nm or less, and further preferably 800nm or less. The thickness of the fiber can be measured by, for example, observing the fiber at a magnification of 10000 times by Scanning Electron Microscope (SEM), removing defects (lumps of the fiber, intersections of the fiber, and droplets) from a two-dimensional image thereof, randomly selecting 10 fibers, drawing a line perpendicular to the longitudinal direction of the fiber, and directly reading the fiber diameter. The fibers of the present invention are preferably continuous fibers, and preferably have a length of at least 100 times or more the thickness of the fibers. For example, the formed coating film is preferably a fiber containing the component (a) and preferably having a length of 10 μm or more, more preferably 50 μm or more, and further preferably 100 μm or more. In the present specification, a fiber having a length 100 times or more the thickness of the fiber is defined as a "continuous fiber". The cross-sectional shape of the fibers is preferably circular or elliptical, and the thickness of the fibers is the diameter in the case of circular shape and the length of the major diameter in the case of elliptical shape. The coating film produced by the electrostatic spraying method is preferably a porous discontinuous coating film containing a deposit of 1 or 2 or more continuous fibers.

According to the electrostatic spraying method, the composition for forming a coating is charged and sprayed, and when the humidity is high, the composition is affected by moisture in the atmosphere, but the composition can be made less susceptible to the effect by containing the conductivity control agent.

The method for producing the composition for forming a coating film may be a method of stirring a mixed solution containing all the components, but it is preferable to have step 2 of adding and stirring and mixing the component (a) after step 1 of stirring a mixed solution 1 containing components other than the component (a). Preferably, these steps 1 and 2 are carried out at normal temperature of 10 to 30 ℃.

The distance between the nozzle and the skin is also dependent on the voltage applied to the nozzle, and is preferably 10mm or more, more preferably 20mm or more, and still more preferably 40mm or more. Further, it is preferably 160mm or less, more preferably 140mm or less, and further preferably 120mm or less. When the distance between the nozzle and the skin is within this range, the film formability can be improved. The distance between the nozzle and the skin can be measured by a generally used non-contact sensor or the like.

The gram weight of the film formed by the electrostatic spraying method is preferably 0.10g/m, regardless of whether the film is a porous film or not²Above, more preferably 1.0g/m²The above. And, preferably, 50g/m²Hereinafter, more preferably 40g/m²The following. The grammage of the formed coating film is preferably 0.10g/m²Above 50g/m²The concentration is more preferably 1.0g/m or less²Above 40g/m²The following. By setting the grammage of the film in this manner, the skin fusion property, the adhesion property, and the rubbing resistance of the film can be simultaneously achieved.

In the present invention, a skin care cosmetic may be applied to the skin before or after the electrostatic spraying step of forming a coating on the skin by electrostatic spraying using the above-described coating film-forming composition of the present invention. In particular, after applying a skin care cosmetic to the skin, a coating film is preferably formed by electrostatic spraying using the coating film-forming composition of the present invention. By thus coating the skin care cosmetic with the film and then performing electrostatic spraying, the skin care cosmetic present on the skin can be coated with the film, the skin-friendly cosmetic can be remarkably improved in the ability to be integrated with the skin, and the skin care cosmetic can be stably held on the skin for a long period of time.

Examples of skin care cosmetics that can be used here include lotions, milky lotions, creams, beauty lotions (whitening, anti-wrinkle, etc.), all-in-one cosmetics, UV protection cosmetics, BB creams, oils, oily gels, and lotions (lotions).

Further, as methods for applying the skin care cosmetic to the skin by a method other than electrostatic spraying, application with fingers, application using nonwoven fabric such as cotton, spraying with a general sprayer, blowing with a gas mist, steaming, dropping, spraying, and the like can be cited.

The present invention also discloses the following compositions and methods with respect to the above embodiments.

< 1 > a composition for forming a coating film, which contains the following components (a), (b), (c) and (d) and is used for directly forming a coating film formed of fibers on the skin by electrostatic spraying.

(a) Polymer having film-forming ability

(b) More than 1 volatile substance selected from alcohol and ketone

(c) Plasticizer agent

(d) Touch feeling modifier other than the component (c)

< 2 > the composition for forming a coating film as < 1 >, wherein the component (a) is a water-insoluble polymer having a coating film-forming ability, and is preferably selected from the group consisting of completely saponified polyvinyl alcohol which can be insolubilized after the formation of a coating film, partially saponified polyvinyl alcohol which can be crosslinked after the formation of a coating film by using a crosslinking agent in combination with a crosslinking agent, oxazoline-modified silicone such as poly (N-propionylethyleneimine) graft-dimethylsiloxane/γ -aminopropylmethylsiloxane copolymer, polyvinylacetal diethylaminoacetate, zein (a main component of zein), polyester, polylactic acid (PLA), acrylic resin such as polyacrylonitrile resin and polymethacrylic resin, polystyrene resin, polyvinylbutyral resin, polyethylene terephthalate resin, partially saponified polyvinyl alcohol which can be crosslinked after the formation of a coating film, and the like, 1 or 2 or more of polybutylene terephthalate resin, polyurethane resin, polyamide resin, polyimide resin and polyamideimide resin, and more preferably 1 or 2 or more selected from completely saponified polyvinyl alcohol which can be insolubilized after the formation of a coating film, partially saponified polyvinyl alcohol which can be crosslinked after the formation of a coating film by using a crosslinking agent in combination, polyvinyl butyral resin, polyurethane resin, oxazoline-modified silicone, polyvinyl acetal diethylaminoacetate and zein.

The composition for forming a coating film described in < 3 > such as < 1 > or < 2 >, wherein the content of the component (a) is preferably 1.0% by mass or more, more preferably 2.0% by mass or more, further preferably 4.0% by mass or more, further preferably 6.0% by mass or more, further preferably 8.0% by mass or more, and preferably 35% by mass or less, more preferably 30% by mass or less, further preferably 25% by mass or less, further preferably 20% by mass or less, and further preferably 1.0% by mass or more and 30% by mass or less, more preferably 2.0% by mass or more and 25% by mass or less, further preferably 4.0% by mass or more and 20% by mass or less, further preferably 6.0% by mass or more and 20% by mass or less, and further preferably 2.0% by mass or more and 35% by mass or less, further preferably 4.0% by mass or more and 30% by mass or less, more preferably 6.0 to 30% by mass, still more preferably 6.0 to 25% by mass, yet more preferably 8.0 to 25% by mass, and still more preferably 8.0 to 20% by mass.

The composition for forming a coating film of < 4 > such as < 1 > to < 3 >, wherein the content of the component (a) is 2.0 mass% or more and 25 mass% or less.

The composition for forming a coating film, wherein the content of the component (a) is 6.0 to 30 mass% inclusive, and < 5 > is, for example, any one of < 1 > to < 3 >.

< 6 > the composition for forming a coating film according to any of < 1 > to < 5 >, wherein the vapor pressure of the component (b) is preferably 0.01kPa to 106.66kPa at 20 ℃, more preferably 0.13kPa to 66.66kPa, even more preferably 0.67kPa to 40.00kPa, even more preferably 1.33kPa to 40.00kPa, even more preferably 2.40kPa to 40.00 kPa.

< 7 > the composition for forming a coating film, wherein the alcohol of the component (b) is preferably 1 or 2 or more selected from the group consisting of monobasic chain aliphatic alcohols, monobasic cyclic aliphatic alcohols and monobasic aromatic alcohols, preferably 1 or 2 or more selected from the group consisting of chain-like, straight-chain or branched monobasic chain aliphatic alcohols having 1 to 6 carbon atoms, monobasic cyclic aliphatic alcohols having 4 to 6 carbon atoms, benzyl alcohols and phenethyl alcohols, and more preferably 1 or 2 or more selected from the group consisting of ethanol, isopropanol, n-butanol, phenethyl alcohol, n-propanol and n-pentanol.

The composition for forming a coating film of < 8 > such as < 1 > to < 7 >, wherein the ketone of the component (b) is preferably a ketone having an alkyl group having 2 carbon atoms of 1 to 4, and more preferably 1 or 2 or more selected from acetone, methyl ethyl ketone and methyl isobutyl ketone.

< 9 > the composition for forming a coating film according to any of < 1 > to < 8 >, wherein the component (b) is preferably 1 or 2 or more selected from ethanol, isopropanol and n-butanol, more preferably 1 or 2 or more selected from ethanol and isopropanol, and still more preferably ethanol.

The composition for forming a coating film of any of < 10 > such as < 1 > to < 9 >, wherein the content of the component (b) is preferably 45% by mass or more, more preferably 50% by mass or more, further preferably 55% by mass or more, further preferably 60% by mass or more, and preferably 98.8% by mass or less, more preferably 98% by mass or less, further preferably 97% by mass or less, further preferably 96% by mass or less, further preferably 94% by mass or less, further preferably 91% by mass or less, further preferably 88.5% by mass or less, further preferably 50% by mass or more and 98.8% by mass or less, more preferably 50% by mass or more and 98% by mass or less, further preferably 55% by mass or more and 96% by mass or less, further preferably 60% by mass or more and 94% by mass or less, and further, preferably 45 to 97% by mass, more preferably 50 to 94% by mass, still more preferably 50 to 91% by mass, and yet more preferably 50 to 88.5% by mass.

The composition for forming a coating film of < 11 > such as < 1 > to < 10 >, wherein the content of the component (b) is 50 to 98 mass%.

The composition for forming a coating film of < 12 > such as < 1 > to < 10 > wherein the content of the component (b) is 50 to 91 mass%.

< 13 > the composition for forming a coating film of any of < 1 > to < 12 >, wherein the component (c) and the component (d) are 1 or 2 or more selected from the group consisting of a polyhydric alcohol, a polyoxyalkylene glycol, a polyoxyalkylene alkyl ether, an ester oil, a silicone oil, a hydrocarbon oil, a liquid oil, a solid oil, a higher alcohol and a nonionic surfactant.

< 14 > the composition for forming a coating film according to any of < 1 > to < 13 >, wherein the component (c) is a compound which easily interacts with a hydroxyl group, an ester or an acetal moiety in the structure of the polyvinyl butyral resin, preferably 1 or 2 or more selected from a polyhydric alcohol, a polyoxyalkylene glycol, a polyoxyalkylene alkyl ether, a specific ester oil, a specific silicone oil and a nonionic surfactant, and more preferably 1 or 2 or more selected from a polyhydric alcohol, a polyoxyalkylene glycol, a monoglyceride, a diglyceride, a malic acid diester, an N-acylamino acid ester, ethylhexyl methoxycinnamate and an alkyl benzoate.

The composition for forming a coating film of any of < 15 > such as < 1 > to < 14 >, wherein the content of the component (c) is preferably 0.10% by mass or more, more preferably 0.50% by mass or more, further preferably 1.0% by mass or more, still more preferably 1.5% by mass or more, and preferably 30% by mass or less, more preferably 25% by mass or less, further preferably 20% by mass or less, still more preferably 15% by mass or less, and further preferably 0.10% by mass or more and 30% by mass or less, more preferably 0.50% by mass or more and 25% by mass or less, still more preferably 1.0% by mass or more and 20% by mass or less, still more preferably 1.0% by mass or more and 15% by mass or less, and further preferably 0.50% by mass or more and 30% by mass or less, more preferably 1.0% by mass or more and 25% by mass or less, still more preferably 1.0% by mass or more and 20% by mass, more preferably 1.5 to 15 mass%.

The composition for forming a coating film of < 16 > such as < 1 > to < 15 > wherein the content of the component (c) is 0.50 to 25 mass%.

The composition for forming a coating film of < 17 > such as < 1 > to < 15 > wherein the content of the component (c) is 1.0 to 20 mass%.

< 18 > the composition for forming a coating film according to any one of < 1 > to < 17 >, wherein, the component (d) is an oil agent having no or a small number of polar functional groups, and is preferably an oil agent having a structure in which the number of hydroxyl groups is 1 or less, more preferably 1 or 2 or more selected from a specific silicone oil, a specific ester oil, a hydrocarbon oil and an alkyl ether oil, further preferably 1 or 2 or more selected from a specific silicone oil, a specific ester oil and a hydrocarbon oil, further preferably 1 or 2 or more selected from a silicone oil, a hydrocarbon oil, a palmitate, an isononanoate, a neopentyl glycol diethylhexanoate, a neopentyl glycol didecanoate and an acylamino acid diester, and further preferably 1 or 2 or more selected from a silicone oil, a hydrocarbon oil, an isononanoate, a neopentyl glycol diethylhexanoate and a neopentyl glycol didecanoate.

< 19 > the composition for forming a coating film, as defined in any one of < 1 > to < 18 >, wherein the content of the component (d) is preferably 0.10% by mass or more, more preferably 0.50% by mass or more, further preferably 1.0% by mass or more, still further preferably 2.0% by mass or more, and preferably 40% by mass or less, more preferably 35% by mass or less, still further preferably 30% by mass or less, still further preferably 25% by mass or less, still further preferably 20% by mass or less, still further preferably 15% by mass or less, and further preferably 0.10% by mass or more and 30% by mass or less, more preferably 0.50% by mass or more and 25% by mass or less, still further preferably 1.0% by mass or more and 20% by mass or less, still further preferably 1.0% by mass or more and 15% by mass or less, and further preferably 0.50% by mass or more and 40% by mass or, more preferably 1.0 to 35% by mass, still more preferably 2.0 to 30% by mass, and still more preferably 2.0 to 25% by mass.

The composition for forming a coating film of < 20 > such as < 1 > to < 19 >, wherein the content of the component (d) is 0.50 to 25 mass%.

The composition for forming a coating film of < 21 > such as < 1 > to < 19 >, wherein the content of the component (d) is 2.0 mass% or more and 30 mass% or less.

< 22 > the composition for forming a coating film according to any one of < 1 > to < 21 >, wherein the mass ratio ((a)/(c)) of the component (a) to the component (c) is preferably 0.033 or more, more preferably 0.10 or more, further preferably 0.20 or more, further preferably 0.40 or more, further preferably 0.80 or more, further preferably 1.0 or more, further preferably 1.5 or more, and preferably 300 or less, more preferably 60 or less, further preferably 30 or less, further preferably 20 or less, further preferably 15 or less, further preferably 10 or less, further preferably 8.0 or less, further preferably 0.033 or more and 300 or less, more preferably 0.10 or more and 60 or less, further preferably 0.20 or more and 30 or less, further preferably 0.40 or more and 10 or less, further preferably 1.0 or more and 10 or less, further, it is preferably 0.80 to 20, more preferably 1.0 to 15, further preferably 1.0 to 10, and further preferably 1.5 to 8.0.

< 23 > the composition for forming a coating film, wherein the content mass ratio ((a)/(c)) of the component (a) to the component (c) is 0.2 to 30 inclusive.

< 24 > the composition for forming a coating film according to any one of < 1 > to < 22 >, wherein the content mass ratio ((a)/(c)) of the component (a) to the component (c) is 1.0 or more and 10 or less.

The composition for forming a coating film described in any of < 25 > such as < 1 > to < 24 >, wherein the content mass ratio ((c)/(d)) of the component (c) to the component (d) is preferably 0.0033 or more, more preferably 0.030 or more, further preferably 0.050 or more, further preferably 0.10 or more, further preferably 0.50 or more, and preferably 300 or less, more preferably 60 or less, further preferably 30 or less, further preferably 10 or less, further preferably 7.0 or less, further preferably 5.0 or less, further preferably 3.5 or less, further preferably 0.0033 or more and 300 or less, more preferably 0.030 or more and 60 or less, further preferably 0.10 or more and 30 or less, further preferably 0.50 or more and 10 or less, further preferably 0.030 or more and 10 or less, more preferably 0.050 or more and 7.0 or less, further preferably 0.10 or more and 5.0 or less, more preferably 0.10 to 3.5.

< 26 > the composition for forming a coating film, wherein the content mass ratio ((c)/(d)) of the component (c) to the component (d) is 0.10 to 30.

< 27 > the composition for forming a coating film, wherein the content mass ratio ((c)/(d)) of the component (c) to the component (d) is 0.10 or more and 5.0 or less.

< 28 > is, for example, < 1 > to < 27 >, wherein the content mass ratio ((a)/(b)) of the component (a) to the component (b) is preferably 0.010 or more, more preferably 0.060 or more, further preferably 0.080 or more, further preferably 0.10 or more, further preferably 0.11 or more, further preferably 0.12 or more, and preferably 0.60 or less, more preferably 0.45 or less, further preferably 0.35 or less, further preferably 0.33 or less, further preferably 0.30 or less, further preferably 0.25 or less, further preferably 0.20 or less, further preferably 0.18 or less, further preferably 0.010 or more and 0.60 or less, more preferably 0.060 or more and 0.33 or less, further preferably 0.10 or more and 0.25 or less, further preferably 0.11 or more and 0.20 or less, further preferably 0.12 or more and 0.18 or less, further, it is preferably 0.060 to 0.45, more preferably 0.080 to 0.35, further preferably 0.10 to 0.33, further preferably 0.11 to 0.30, and further preferably 0.12 to 0.25.

< 29 > the composition for forming a coating film according to any one of < 1 > to < 28 >, wherein the content mass ratio ((a)/(b)) of the component (a) to the component (b) is 0.10 or more and 0.25 or less.

< 30 > the composition for forming a coating film according to any one of < 1 > to < 28 >, wherein the content mass ratio ((a)/(b)) of the component (a) to the component (b) is 0.11 or more and 0.30 or less.

< 31 > is the composition for forming a coating film according to any one of < 1 > to < 30 >, wherein the mass ratio ((a)/(d)) of the component (a) to the component (d) is preferably 0.033 or more, more preferably 0.10 or more, further preferably 0.20 or more, further preferably 0.40 or more, further preferably 0.50 or more, further preferably 1.0 or more, and preferably 300 or less, more preferably 60 or less, further preferably 30 or less, further preferably 15 or less, further preferably 10 or less, further preferably 8.0 or less, further preferably 7.0 or less, further preferably 0.033 or more and 300 or less, more preferably 0.10 or more and 60 or less, further preferably 0.20 or more and 30 or less, further preferably 0.40 or more and 10 or less, further preferably 1.0 or more and 10 or less, and further, preferably 0.10 to 15, more preferably 0.20 to 10, still more preferably 0.50 to 8.0, and yet more preferably 0.50 to 7.0.

< 32 > the composition for forming a coating film, wherein the content mass ratio ((a)/(d)) of the component (a) to the component (d) is 0.20 to 30 inclusive.

< 33 > the composition for forming a coating film, wherein the content mass ratio ((a)/(d)) of the component (a) to the component (d) is 0.5 to 8.0.

< 34 > for example < 1 > to < 33 >, wherein the composition contains a component selected from the group consisting of a conductivity control agent, an oil agent other than the components (c) and (d), a coloring pigment, an extender pigment, a dye, a perfume, a repellent, an antioxidant, a stabilizer, a preservative, various vitamins and water.

< 35 > and < 34 >, wherein the conductivity control agent is preferably a component for controlling the conductivity of the composition at 25 ℃ to 10 to 300. mu.S/cm.

< 36 > for example < 34 > or < 35 >, wherein the conductivity-controlling agent is preferably an alkali metal salt or an ammonium salt, more preferably an ionic surfactant, and still more preferably 1 or 2 or more selected from the group consisting of a cationic surfactant and an anionic surfactant.

The composition for forming a coating film, wherein < 37 > is, for example, < 34 > to < 36 >, and the conductivity control agent is 1 or 2 or more selected from quaternary ammonium salts and acylamino acid salts.

The composition for forming a coating film of any of < 38 > such as < 34 > to < 37 >, wherein the content of the conductivity control agent is preferably 0.010% by mass or more, more preferably 0.050% by mass or more, further preferably 0.10% by mass or more, and preferably 10% by mass or less, more preferably 8.0% by mass or less, further preferably 6.0% by mass or less, further preferably 2.5% by mass or less, further preferably 2.0% by mass or less, and further preferably 0.010% by mass or more and 10% by mass or less, more preferably 0.050% by mass or more and 8.0% by mass or less, further preferably 0.10% by mass or more and 6.0% by mass or less, further preferably 0.10% by mass or more and 2.5% by mass or less, and further preferably 0.10% by mass or more and 2.0% by mass or less.

< 39 > such as < 1 > to < 38 >, wherein the viscosity of the composition for forming a coating film is preferably 2 mPas or more, more preferably 5 mPas or more, further preferably 10 mPas or more, further preferably 30 mPas or more, further preferably 50 mPas or more, further preferably 80 mPas or more, and preferably 3000 mPas or less, more preferably 2000 mPas or less, further preferably 1500 mPas or less, further preferably 1000 mPas or less, further preferably 800 mPas or less, further preferably 500 mPas or less, further preferably 2 mPas or more and 3000 mPas or less, more preferably 5 mPas or more and 2000 mPas or less, further preferably 10 mPas or more and 1500 mPas or less, further preferably 30 mPas or more and 1000 mPas or less at 25 ℃, more preferably 50 to 800 mPas, still more preferably 80 to 500 mPas.

< 40 > the composition for forming a coating film according to any one of < 1 > to < 39 > used in combination with a skin care cosmetic applied to the skin by a method other than electrostatic spraying.

< 41 > such as < 40 > wherein the skin care cosmetic is selected from the group consisting of lotions, milks, creams and lotions.