Powder and cosmetic

文档序号：38964 发布日期：2021-09-24 浏览：26次中文

阅读说明：本技术 粉体及化妆品 (Powder and cosmetic ) 是由涌井涉于 2020-02-21 设计创作，主要内容包括：本发明提供一种粉体,其中,在弹性模量为1×10～(5)～5×10～(10) N/m～(2)的弹性粉体的表面存在N～(ε)-月桂酰赖氨酸和N～(ε)-辛酰赖氨酸中的1种以上的成分。(The present invention provides a powder having an elastic modulus of 1X 10 5 ～5×10 10 N/m 2 The surface of the elastic powder has N ε Lauroyl lysine and N ε -1 or more components of caprylyl lysine.)

1. A powder having an elastic modulus of 1 x 10⁵～5×10¹⁰ N/m²The surface of the elastic powder has N^εLauroyl lysine and N^ε-1 or more components of caprylyl lysine.

2. The powder of claim 1, wherein the elastic powder has an elastic modulus of 1 x 10⁶～1×10¹⁰ N/m²。

3. The powder of claim 1, wherein the elastic powder has an elastic modulus of 1 x 10⁷～5×10⁸ N/m²。

4. The powder of claim 1, wherein the elastic powder has an elastic modulus of 1 x 10⁷～3×10⁸ N/m²。

5. The powder according to any one of claims 1 to 4, wherein a ratio of a total mass of the 1 or more components to a mass of the elastic powder is 1:9 to 4: 6.

6. The powder according to any one of claims 1 to 5, wherein the average particle diameter is 5 to 25 μm, and the particle diameter at which 90% of the cumulative frequency of all particles is 35 μm or less.

7. The powder according to any one of claims 1 to 6, wherein the average particle diameter is 10 to 20 μm, and the particle diameter at which 90% of the cumulative frequency of all particles is present is 15 to 30 μm.

8. The powder according to any one of claims 1 to 7, wherein the elastic powder is corn starch.

9. The powder according to any one of claims 1 to 8, wherein the powder is spherical.

10. A cosmetic comprising the powder according to any one of claims 1 to 9.

11. A powder is prepared by mixing a powder with an elastic modulus of 1 × 10⁵～5×10¹⁰ N/m²The elastic powder of (A) and (N)^εLauroyl lysine and N^ε-powder obtained by pulverizing and mixing 1 or more components of caprylyl lysine.

12. The powder according to claim 11, wherein the average particle diameter is 5 to 25 μm, and the particle diameter at which 90% of the cumulative frequency of all particles is smaller than 35 μm.

Technical Field

The present invention relates to a powder for improving the touch and a cosmetic containing the powder.

Background

Conventionally, it has been known that spherical polymer powder such as nylon powder (see, for example, japanese patent No. 2653990) or acrylic powder (see, for example, japanese patent No. 3027008) is blended into cosmetics for the purpose of improving the touch and smoothness during application. In particular, spherical nylon powder has a problem (technical problem) that a feeling of setback (きしみ) derived from a synthetic polymer resin is generated on the skin or a feeling of wetness cannot be imparted thereto, although the unique touch and smoothness during application are good due to the rolling feeling peculiar to the sphere.

On the other hand, imagine that N will be used^εAnd a technique of adding an N-monolong chain acyl basic amino acid represented by lauroyl lysine to a cosmetic as a powder for cosmetics to impart a unique moist feeling (see Japanese patent laid-open publication No. Sho 61-10503). However, the N-monolong chain acyl basic amino acid has a problem that it is excellent in spreadability on the skin when applied, but it lacks the feeling and smoothness when applied due to rolling feeling, such as spherical nylon powder.

With respect to N^εLauroyl lysine is also used as a surface treatment agent in some cases for improving the touch of talc (Japanese patent application laid-open No. 7-252113), but N is used for producing a product having high water repellency, adhesiveness, and transparency^εPowder of talc or the like surface-treated with lauroyl lysine, which requires one-time N^εAnd the lauroyl lysine is dissolved in strong alkali or strong acid and then is precipitated on the surface of the powder. Can be practically N in industry^εThe powder surface-treated with lauroyl lysine is limited to acid/alkali resistant powders having a specific shape and a specific functional group such as talc and mica. Powders such as corn starch cannot be converted to N by such methods^εLauroyl lysine is surface treated.

Disclosure of Invention

The purpose of the present invention is to provide a powder which has excellent feel and smoothness (すべり properties) when applied, and can impart a moist feel (しっとり feel) and no setback, and a cosmetic containing the powder.

As a result of earnest studies, the inventors of the present invention have found that a corn starch powder is mixed with N^εLauroyl lysine or N^εPulverizing 1 or 2 of-octanoyl lysine under specific conditionsMixing to prepare N as non-elastic powder^εLauroyl lysine or N^εThe present inventors have completed the present invention based on the fact that a powder in which octanoyl lysine is present on the surface of corn starch, which is an elastic powder, can provide a powder that can solve the above problems. Namely, the present invention provides the following powder and cosmetic;

[1]a powder having an elastic modulus of 1 x 10⁵～5×10¹⁰N/m²The surface of the elastic powder has N^εLauroyl lysine and N^ε-1 or more components of capryloyl lysine;

[2]according to [1]The powder, wherein the elastic modulus of the elastic powder is 1 × 10⁶～1×10¹⁰N/m²；

[3]According to [1]The powder, wherein the elastic modulus of the elastic powder is 1 × 10⁷～5×10⁸N/m²；

[4]According to [1]The powder, wherein the elastic modulus of the elastic powder is 1 × 10⁷～3×10⁸N/m²；

[5] The powder according to any one of [1] to [4], wherein a ratio of a total mass of the 1 or more components to a mass of the elastic powder is 1:9 to 4: 6;

[6] the powder according to any one of [1] to [5], wherein the average particle diameter is 5 to 25 μm, and the particle diameter at which 90% of the cumulative frequency of all particles is 35 μm or less;

[7] the powder according to any one of [1] to [6], wherein the average particle diameter is 10 to 20 μm, and the particle diameter at which 90% of the cumulative frequency of all particles is present is 15 to 30 μm;

[8] the powder according to any one of [1] to [7], wherein the elastic powder is corn starch;

[9] the powder according to any one of [1] to [8], wherein the powder is spherical;

[10] a cosmetic comprising the powder according to any one of [1] to [9 ];

[11]a powder is prepared by mixing a powder with an elastic modulus of 1 × 10⁵～5×10¹⁰N/m²The elastic powder of (A) and (N)^εLauroyl lysine and N^ε-powder obtained by pulverizing and mixing 1 or more components of caprylyl lysine;

[12] the powder according to [11], wherein the average particle diameter is 5 to 25 μm, and the particle diameter at which 90% of the cumulative frequency of all particles is present is 35 μm or less.

Brief description of the drawingsfigure 1 is an optical micrograph showing an image of a grain of corn starch;

fig. 2 is an optical micrograph showing a particle image of the powder of the present invention.

Detailed Description

The powder of the present invention has an elastic modulus of 1X 10⁵～5×10¹⁰N/m²The surface of the elastic powder has N^εLauroyl lysine and N^ε-powder of 1 or more components of caprylyl lysine. Here, the presence of the 1 or more components on the surface of the elastic powder means that the 1 or more components may be present on at least a part of the surface of the elastic powder, for example, by adhesion, and the form thereof is not particularly limited.

The elastic modulus of the elastic powder used in the present invention is 1X 10⁵～5×10¹⁰N/m²Preferably 1X 10⁶～1×10¹⁰N/m²More preferably 1X 10⁷～5×10⁸N/m²More preferably 1X 10⁷～3×10⁸N/m². By mixing such elastic powder with N^εLauroyl lysine and N^εPowder in which 1 or more components of the octanoyl lysine are present on the surface of the elastic powder can be produced by pulverizing and mixing 1 or more components of the octanoyl lysine under specific conditions. Examples of the elastic powder include: corn starch, rice starch, potato starch, tapioca starch, wheat flour, barley flour, rye flour, gelatinized starch, partially gelatinized starch, polymethyl methacrylate, methyl methacrylate crosspolymer, polyacrylic acid, nylon 6, nylon 12, nylon 11, polyurethane, polyethylene, polypropylene, polystyrene, silicone resin, (vinyl polydimethylsiloxane/polymethylsiloxane silsesquioxane)) Crosslinked polymer, sodium carboxymethyl starch, carboxymethyl cellulose, sodium carboxymethyl cellulose, calcium carboxymethyl cellulose, croscarmellose sodium, crospovidone, low-substituted hydroxypropyl cellulose, methyl cellulose, ethyl cellulose, hydroxypropyl methyl cellulose phthalate, hydroxypropyl methyl cellulose succinate, carboxymethyl ethyl cellulose, sodium carboxymethyl cellulose, hydroxyethyl cellulose, cellulose acetate phthalate, crystalline cellulose, polyethylene glycol, polyvinyl alcohol, polyvinyl pyrrolidone, polyvinyl acetal diethylaminoacetate, aminoalkyl methacrylate copolymer E, aminoalkyl methacrylate copolymer RS, methacrylic acid copolymer L, methacrylic acid copolymer LD, methacrylic acid copolymer S, carboxyvinyl polymer, sodium carboxymethyl starch, sodium carboxymethyl cellulose, hydroxypropyl methylcellulose phthalate, hydroxypropyl methylcellulose acetate succinate, carboxymethyl ethyl cellulose, carboxymethyl cellulose, sodium carboxymethyl cellulose, hydroxyethyl cellulose, cellulose acetate phthalate, crystalline cellulose, polyethylene glycol, polyvinyl alcohol, polyvinyl pyrrolidone, polyvinyl acetal diethylaminoacetate, aminoalkyl methacrylate copolymer E, aminoalkyl methacrylate copolymer RS, methacrylic acid copolymer L, methacrylic acid copolymer LD, methacrylic acid copolymer S, carboxymethyl polymer, polyvinyl alcohol, polyvinyl acetal, polyvinyl acetate, gum arabic, polystyrene/butadiene rubber, natural rubber, sodium alginate (sodium alginate), propylene glycol alginate, agar, gelatin, tragacanth (tragacanth), xanthan gum, guar gum, polyarginine, polylysine, polyglutamic acid, ozokerite, microcrystalline wax, porous silica, and the like. The elastic powder is preferably corn starch. These elastic powders may be used alone or in combination of two or more.

The ratio of the total mass of the 1 or more components to the mass of the elastic powder is preferably 1:9 to 6: 4, more preferably 1:9 to 4: 6. By setting the ratio in such a range, the presence of N on the surface of the elastic powder can be efficiently produced^εLauroyl lysine and N^ε-powder of 1 or more components of caprylyl lysine.

The powder of the present invention can be prepared, for example, by: the elastic powder and the 1 or more components are pulverized and mixed by a ball mill using alumina balls having a diameter of 0.5 to 5 cm. The average particle size of the powder of the present invention is preferably 5 to 25 μm, more preferably 10 to 20 μm. In addition, the powder of the present invention preferably has a particle size of 90% cumulative frequency of all particles of 35 μm or less, more preferably 15 to 30 μm. By adjusting the particle diameter within these ranges, the feel on the skin can be made more excellent. The average particle diameter and the particle diameter at which the cumulative frequency of all particles is 90% can be measured using a laser diffraction/scattering particle diameter distribution measuring apparatus.

The powder of the present invention is preferably spherical. Here, "spherical" does not necessarily mean only a true sphere (spherical ball), and means that the cross-sectional shape of the particle is a shape surrounded by a curved surface, such as a circle, an ellipse, a nearly circle, or a nearly ellipse.

The cosmetic of the present invention comprises: the above-mentioned elastic modulus is 1X 10⁵～5×10¹⁰N/m²The surface of the elastic powder has N^εLauroyl lysine and N^ε-powder of 1 or more components of caprylyl lysine.

The cosmetic of the present invention may contain, as appropriate, ingredients generally used in cosmetics, such as powders, pigments, oils, ionic surfactants, nonionic surfactants, humectants, antioxidants, thickeners, film-forming agents, organic solvents, preservatives, chelating agents, and perfumes, within a range that does not impair the effects of the present invention.

The cosmetic of the present invention may be in any form, such as a solution system, a soluble (solubilizing) system, an emulsion system, and a powder dispersion system. The use thereof can be used for skin cosmetics such as lotions, milky lotions, creams, and masks, hair cosmetics such as shampoos, conditioners, hair creams, and hair setting agents (hair sets), and makeup cosmetics such as foundation, lipstick, and eye shadow.

The pH of the cosmetic of the present invention is not particularly limited to a specific range, and is generally 4.5 to 7. The pH of the cosmetic of the present invention can be adjusted by adding a pH adjuster. The pH adjuster is not particularly limited, and examples thereof include lactic acid, citric acid, glycolic acid, succinic acid, tartaric acid, potassium carbonate, sodium hydrogen carbonate, ammonium hydrogen carbonate, sodium hydroxide, potassium hydroxide, triethanolamine, and monoethanolamine. These pH adjusters may be used alone or in combination of two or more.

The present invention will be described below with reference to examples and comparative examples, but the present invention is not limited to these examples.

Examples

< example 1>

4g of N are weighed in a 1L capacity alumina ball mill vessel^εLauroyl lysine (ajinomoto corporation, AMIHOPE (registered trademark) LL) and 16g of corn starch (japanese food chemical corporation, corn starch W). 660g of alumina balls having a diameter of 2.0cm and 600g of alumina balls having a diameter of 1.0cm were put into the vessel, and the mixture was pulverized and mixed at 100rpm for 15 hours to obtain a mixture having N adhered to the surface thereof^ε-spherical powders of lauroyl lysine. With respect to the attachment of N to the surface^εConfirmation of lauroyl lysine by visual observation using an optical microscope (HIROX, RH-2000 digital microscope), N was confirmed^εLauroyl lysine was attached to the surface of the spherical particles characteristic of corn starch (fig. 1 and 2). The elastic modulus of the corn starch is 2.9 multiplied by 10⁸N/m². The elastic modulus of the elastic powder was calculated from the particle diameter measured particle by particle with an optical microscope, the cross-sectional area calculated from the particle diameter with the cross-sectional area of the particle taken as a circle, and the test force and the compression displacement (deformation) calculated by a micro compression tester (MCT-510, shimadzu corporation) according to the following formula. The value of the elastic modulus is the average value of n-5;

elastic modulus ═ σ ÷ epsilon ═ P ÷ a), (λ ÷ L)

σ: vertical stress

P: test force

A: cross sectional area of particle

Epsilon: strain of

λ: compressive displacement (deflection)

L: particle diameter

Further, the arithmetic mean particle diameter was measured by a laser diffraction/scattering particle size distribution measuring apparatus (LA-950, manufactured by horiba, Ltd.) in a dry method, and the mean particle diameter was 12 μm, and the particle diameter at a cumulative frequency of 90% of all the particles was 20 μm. The arithmetic average particle size is expressed by the following formula;

arithmetic mean particle diameter (μm) ═ Σ { q (j) × x (j) } ÷ Σ { q (j) }

J: particle size division numbering

q (J): frequency distribution value (%)

X (J): representative diameter of the J-th particle size range (. mu.m).

< example 2>

N was adhered to the surface of the substrate in the same manner as in example 1 except that the time for pulverization and mixing was changed to 5 hours^ε-spherical powders of lauroyl lysine. The average particle diameter was 12 μm, and the particle diameter at which 90% of the cumulative frequency of all particles was 19 μm.

< example 3>

N was adhered to the surface of the substrate in the same manner as in example 1 except that the time for pulverization and mixing was changed to 64 hours^ε-spherical powders of lauroyl lysine. The average particle diameter was 13 μm, and the particle diameter at which 90% of the cumulative frequency of all particles was 22 μm.

< example 4>

N was adhered to the surface of the substrate in the same manner as in example 1 except that the time for pulverization and mixing was changed to 120 hours^ε-spherical powders of lauroyl lysine. The average particle diameter was 15 μm, and the particle diameter at which 90% of the cumulative frequency of all particles was 25 μm.

< comparative example 1>

To N^εThe particle size distribution of lauroyl lysine (ajinomoto, AMIHOPE (registered trademark) LL) was measured. The average particle diameter was 17 μm, and the particle diameter at which 90% of the cumulative frequency of all particles was 26 μm.

< comparative example 2>

The particle size distribution of corn starch (corn starch W, manufactured by japan food and chemical industries) was measured. The average particle diameter was 20 μm, and the particle diameter at which 90% of the cumulative frequency of all particles was 30 μm.

< comparative example 3>

4g of N are weighed into a glass vial having a volume of 50mL^εLauroyl lysine (ajinomoto corporation, AMIHOPE (registered trademark)) and 16g of corn starch (japan food and chemical industries, ltd., corn starch W), and the particle size distribution of the powder after shaking 200 times by hand was measured. The average particle diameter was 21 μm, and the particle diameter at which 90% of the cumulative frequency of all particles was 32 μm.

Average of powder of examples 1 to 4 and comparative examples 1 to 3The particle size and the particle size at which the cumulative frequency of all particles is 90% are summarized in Table 1. As is clear from table 1, the average particle size was reduced by the pulverization and mixing using the ball mill. Further, from the results of examples 1 to 4, it is understood that the average particle diameter becomes larger as the time for pulverizing and mixing becomes longer. It is considered that more N is attached to the particle surface by extending the time of pulverization and mixing^ε-lauroyl lysine.

[ Table 1]

< example 5>

Except that 2g of N^εN-attachment to the surface of the starch was obtained in the same manner as in example 1, except that lauroyl lysine was pulverized and mixed with 18g of corn starch^ε-spherical powders of lauroyl lysine. The average particle diameter was 14 μm, and the particle diameter at which 90% of the cumulative frequency of all particles was 20 μm.

< example 6>

Except that 8g of N^εN-attachment to the surface of lauroyl lysine was obtained in the same manner as in example 1, except that 12g of corn starch was pulverized and mixed^ε-spherical powders of lauroyl lysine. The average particle diameter was 15 μm, and the particle diameter at which 90% of the cumulative frequency of all particles was 18 μm.

< example 7>

Except that N is^εChanging lauroyl lysine to N^εN-octanoyllysine (Ajinomoto Co., Ltd., AMIOPE (registered trademark) OL) was attached to the surface in the same manner as in example 1 to obtain N^ε-spherical powders of caprylyl lysine. The average particle diameter was 10 μm, and the particle diameter at which 90% of the cumulative frequency of all particles was 18 μm.

< example 8>

Except that 4g of N^εChanging lauroyl lysine to 2g N^εLauroyl lysine with 2g of N^εThe same operation as in example 1 was carried out except that the mixture of octanoyl lysine (AMIHOPE (registered trademark) OL, manufactured by miso corporation) was used, and the surface of the mixture was adhered with octanoyl lysineN^εLauroyl lysine and N^ε-spherical powders of caprylyl lysine. The average particle diameter was 11 μm, and the particle diameter at which 90% of the cumulative frequency of all particles was 18 μm.

< test example 1> evaluation of feeling of spherical powder

The following (1) to (5) were evaluated for corn starch (comparative example 2), commercially available nylon pellets (SP-500, tokyo co., ltd.) (comparative example 4), and spherical powders of examples 1, 5, 6, 7, and 8 by sensory evaluation by 5 panelists: (1) the rolling feeling-based touch feeling is unique and good (rolling feeling), (2) smoothness during application, (3) wetting feeling after application, (4) no setback feeling after application (degree of no setback feeling after application), and (5) adhesiveness to the skin. For the evaluation, each powder was applied to the forearm inner part of the examiner, and the spherical powder of comparative example 2 was evaluated as a comparative object based on the following evaluation criteria. For each evaluation item, the average M of the scores of 5 panelists was calculated, and the results are shown in Table 2, wherein "A" is the case where 0.5 < M.ltoreq.2.0, "B" is the case where 0 < M.ltoreq.0.5, "C" is the case where-0.5 < M.ltoreq.0, and "D" is the case where-2.0. ltoreq.M.ltoreq.0.5. In the present invention, the rolling feeling is a feeling that the powder is rolling like a ball on the skin.

< evaluation criteria >

(1) Rolling sense

And 2, dividing: has comfortable rolling feeling compared with the comparison object

1 minute: has a slightly comfortable rolling feeling compared with the comparison object

0 minute: has a rolling feeling of the same degree as that of a comparison object

-1 point: slightly slippery compared with the comparison object (feeling of upper slide り)

-2 points: a slippery feeling was felt compared with the comparison object

(2) Smoothness in coating

And 2, dividing: has comfortable smoothness compared with the comparison object

1 minute: has a slightly comfortable smoothness compared with the comparison object

0 minute: has smoothness equal to that of the comparative object

-1 point: slightly dragging compared with the comparative subject (elicitation っかかり feeling)

-2 points: compared with the comparison object, the product has dragging feeling

(3) Moist feeling after coating

And 2, dividing: has comfortable moist feeling compared with the comparison object

1 minute: has a slightly more comfortable feeling of wetness than the comparative subject

0 minute: has the same degree of wetness compared with the comparative object

-1 point: slightly dry compared with the comparative object

-2 points: has dry feeling compared with the comparative object

(4) Degree of no jerky feeling after coating

And 2, dividing: a comfortable slippery feeling (するする feeling) continued as compared with the comparative subject

1 minute: a slightly more comfortable slippery feel continued compared to the comparative subject

0 minute: the feeling of slipperiness was sustained to the same degree as that of the comparative sample

-1 point: slightly frustrating compared with the comparison object

-2 points: with jerky feeling compared with the comparison object

(5) Adherence to skin

And 2, dividing: the adhesion was very high as compared with that of the comparative object

1 minute: slightly higher adhesion than the comparative one

0 minute: the adhesion was comparable to that of the comparative sample

-1 point: slightly superficial compared with the comparative subject

-2 points: compared to the comparison subject, exfoliation.

[ Table 2]

Evaluation item

Example 1

Example 5

Example 6

Example 7

Example 8

Comparative example 4

Rolling sense

Smoothness in coating

Moist feeling after coating

Degree of no jerky feeling after coating

Adherence to skin

。

< example 9> preparation of Foundation

According to the formulation shown in table 3, a solid foundation was manufactured as follows;

the manufacturing method comprises the following steps: in Table 3, component (A) was mixed in advance, component (B) dissolved by heating in advance was added thereto, and the mixture was uniformly mixed, sieved through a sieve having a mesh opening of 150 μm to make the particle size uniform, and packed in a metal dish and compression-molded.

[ Table 3]

The numerical value is content by weight percent

1 SA-Talc JA-46R Mitsubishi Kabushiki Kaisha

2 SA-sericite FSE Mitsukuai Kabushiki Kaisha

3 SA-mica Y-2300 Katsukui Kabushiki Kaisha

4 SA-titanium CR50 (100%) Mitsukuai Kabushiki Kaisha

5MT-100Z Tayca Kabushiki Kaisha

6MZ-303S Tayca Kabushiki Kaisha

7 SA-Red R-516PS (100%) Mitsukuai Kabushiki Kaisha

8 SA-yellow LL-100P (100%) Mitsubishi Kabushiki Kaisha

9 SA-Black BL-100PS (100%) Mitsukuai Kabushiki Kaisha

10AmIHOPE (registered trademark) LL taste element Co., Ltd

11KF-96A-20cs shin-Etsu chemical Co., Ltd

12COSMOL 44V Riqing Oliego group, Inc

13COSMOL 168ARV Riqing Oliyome group, Inc

14HICALL (ハィコ - ル) K-230 Kaneda.

< comparative example 5>

A foundation cake was prepared in the same manner as in example 9, except that "spherical powder of example 1" in table 3 of example 9 was changed to nylon powder (dongli corporation, SP-500).

< comparative example 6>

A foundation cake was prepared in the same manner as in example 9, except that "spherical powder of example 1" in table 3 of example 9 was changed to corn starch (corn starch W, manufactured by japan food and chemical industries).

< test example 2> evaluation of feeling of foundation powder compact

In comparative examples 5 and 6 and example 9, the following (1) to (5) were evaluated by sensory evaluation by 5 panelists: (1) a unique good touch feeling (rolling feeling) by the rolling feeling during application, (2) smoothness during application, (3) wetting feeling after application, (4) no setback feeling after application (degree of no setback feeling after application), and (5) adhesiveness to the skin. For the evaluation, each powder was applied to the forearm inner part of the panelist, and the foundation cake of comparative example 6 was evaluated as a comparative object based on the following evaluation criteria. For each evaluation item, the average M of the scores of 5 panelists was calculated, and the results are shown in Table 3, wherein "A" represents 0.5 < M.ltoreq.2.0, "B" represents 0 < M.ltoreq.0.5, "C" represents-0.5 < M.ltoreq.0, and "D" represents-2.0. ltoreq.M.ltoreq.0.5.