阅读说明：本技术 一种耐工业洗涤的烫金膜及其制备方法 (Industrial washing-resistant gold stamping film and preparation method thereof ) 是由 梅立斌 于 2019-09-04 设计创作，主要内容包括：本发明提供一种耐工业洗涤的烫金膜,包括逐层依次设置的PET层、离型层、光固化保护层、电镀层和粘合层,所述光固化保护层采用光固化树脂在离型层上涂布而成,所述光固化树脂是聚对苯二甲酸乙二酯。本发明的烫金膜的制备方法为：在PET薄膜上涂聚氨酯离型剂形成离型层；在所述离型层上涂布聚对苯二甲酸乙二酯光固化树脂,光固化成型为光固化保护层；在所述光固化保护层上进行真空电镀,形成电镀层；在所述电镀层上涂布热熔胶形成粘合层。本发明的耐工业洗涤的烫金膜,具有高弹性且不爆裂,不仅具有优良的拉伸性能,手感丰满且不沾手,烫金效果具有较高的反光效果,而且耐工业洗涤,高耐水洗,经过多次水洗后仍然保持良好的光泽效果。(The invention provides an industrial washing resistant gold stamping film which comprises a PET layer, a release layer, a light curing protective layer, an electroplated layer and an adhesive layer which are sequentially arranged layer by layer, wherein the light curing protective layer is formed by coating light curing resin on the release layer, and the light curing resin is polyethylene terephthalate. The preparation method of the bronzing film comprises the following steps: coating a polyurethane release agent on the PET film to form a release layer; coating polyethylene terephthalate light-cured resin on the release layer, and performing light curing to form a light-cured protective layer; performing vacuum electroplating on the photocuring protective layer to form an electroplated layer; and coating hot melt adhesive on the electroplated layer to form an adhesive layer. The gold stamping film resistant to industrial washing has high elasticity and is not burst, has excellent tensile property, is full in hand feeling and free of sticking, has a high gold stamping effect, is resistant to industrial washing and high in water washing resistance, and still keeps a good gloss effect after multiple times of water washing.)

1. The utility model provides a bronzing film of resistant industrial washing which characterized in that: the light-cured protective layer is formed by coating light-cured resin on the release layer, and the light-cured resin is polyethylene terephthalate.

2. The bronzing film resistant to industrial laundering according to claim 1, wherein: the thickness of the light-cured protective layer is 0.3-0.5 μm.

3. The bronzing film resistant to industrial laundering according to claim 2, wherein: the thickness of the PET layer is 95-105 μm.

4. The bronzing film resistant to industrial laundering according to claim 2, wherein: the release layer is formed by coating a polyurethane release agent, and the thickness of the release layer is 3-5 microns.

5. The bronzing film resistant to industrial laundering according to claim 2, wherein: the electroplated layer is an aluminum metal layer with a thickness of 0.4-0.5 μm.

6. The bronzing film resistant to industrial laundering according to claim 2, wherein: the adhesive layer is made of PVA and has a thickness of 0.5 to 0.7 μm.

7. The method for preparing the bronzing film resistant to industrial washing according to any one of claims 1 to 6, characterized by comprising the steps of:

preparing a release layer: selecting a PET film as a coating base material, coating a polyurethane release agent on the PET film, and baking to form a release layer;

preparing a photocuring protective layer: coating photo-curing resin on the release layer, wherein the photo-curing resin is polyethylene terephthalate and is formed into a photo-curing protective layer through photo-curing;

and (3) vacuum plating preparation: performing vacuum electroplating on the photocuring protective layer, and depositing metal on the surface of the photocuring protective layer to form an electroplated layer;

preparing an adhesive layer: and coating hot melt adhesive on the electroplated layer, and baking to form the adhesive layer.

8. The method for producing an industrial washing-resistant bronzing film according to claim 1, wherein: the preparation of the release layer is carried out at the baking temperature of 150 ℃ for 3 minutes.

9. The method for producing an industrial washing-resistant bronzing film according to claim 1, wherein: when the photocuring protective layer is prepared, the photocuring resin is cured and molded after being irradiated by ultraviolet light for 1-2 seconds.

10. The method for producing an industrial washing-resistant bronzing film according to claim 1, wherein: when the adhesive layer is prepared, the baking temperature is 85 ℃, and the baking time is 5 minutes.

Technical Field

The invention belongs to the field of textile printing and dyeing, and particularly relates to an industrial washing-resistant gold stamping film and a preparation method thereof.

Background

The glittering gold stamping is always a mark of fashion clothing, the gold stamping of the clothing is mostly silk-screen gold stamping paste, the surface of the fabric has metal-like gold stamping patterns by using a hot-pressing gold stamping film, and the strong metal visual impact is deeply favored by consumers.

With the gradual improvement of aesthetic requirements of consumers, the demand on the variety of clothes styles and pattern effects is more and more, jeans can be a star which never fades all the year round and are listed as the head of a wild garment. The jeans are more and more in fabric and design, for example, straight pants and micro-trumpet pants can enable women with thick legs to be beautiful and slim, and close-fitting pants can enable fat women to be slim and thin women to be sexy. As the development of the jeans is more diversified, the trend of fashion and leisure is developed. A large number of manufacturing processes for hardware, leather, knitting, colored cloth splicing and the like for accessories are rapidly developed and used in China. The plate types have also developed from the earliest straight tubes into various new types such as body-building, Korean, small foot, small straight tube, trouser-Harron, leisure, business, conjoined, ancient, horn, etc. The metal elements can present more personalized demands, and consumers demand more fashion effect combined with fashion elements on the clothing fabric.

The personalized style of jeans is generated by industrial washing, the process of washing jeans is violent, and indigo on the surface of jeans is damaged. The washing of the denim industry is mainly classified by:

(1) and (4) performing general washing. The general washing is ordinary washing, but the ordinary washing familiar to people is changed into mechanization, the water temperature is about 30-45 ℃, certain detergent is added, after about 15 minutes of ordinary washing, the softener is added in clear water, so that the fabric is softer and more comfortable, and is more natural and cleaner in vision. The denim washing time is usually about 10 minutes according to the washing time and the amount of chemicals.

(2) Desizing and ENZYME washing (ENZYME WASH). In the weaving process of the jean, in order to strengthen the tension, a layer of pulp is stuck on the surface, the enzyme is cellulase, and the cellulase can generate degradation effect on a fiber structure under certain PH value and temperature, so that the cloth surface can be mildly faded (approximately 10-15% of color is washed away), faded (a peach skin effect is generated), and a durable softening effect is obtained. But the color can not be made very light, the cowboy needs to be rinsed to obtain light color, and the ENZYME STONE WASH (ENZYME STONE WASH) can be used together with STONEs.

(3) Rinsing (BLEACH WASH). In order to make the clothes have white or bright appearance and soft hand feeling, the clothes need to be rinsed, namely after the clothes are washed by clean water, the clothes are heated to 60 ℃, and a proper amount of bleaching agent (bleaching agent) is added according to the shade of the bleaching color, so that the color is consistent with the plate in 7-10 minutes. During operation, the direction of adding the bleaching agent is consistent with the direction of rotation of the rotary cylinder, so that the bleaching agent cannot be diluted with water as quickly as possible and directly falls on clothes to cause local bleaching. Before bleaching, the water level in the tank is slightly higher so as to facilitate the dilution of the bleaching water. After the board is bleached by the clothes, the residual bleaching water in the water is neutralized by big (small) soda (Na2CO3, NaHCO3) so that the bleaching is completely stopped. After the water is washed, a detergent, a fluorescent whitening agent, hydrogen peroxide and the like are added into the water at the temperature of 50 ℃ for final washing, pH value neutralization, fluorescent whitening and the like, and finally softening treatment is carried out. The rinsing can be divided into oxygen rinsing and chlorine rinsing. The oxygen bleaching is to destroy the dye structure by using the oxidation of hydrogen peroxide at a certain pH value and temperature, so as to achieve the purposes of fading and whitening, and the surface of the bleached cloth is generally slightly reddened. Chlorine bleaching is to destroy the dye structure by the oxidation of sodium hypochlorite, so as to achieve the purpose of fading. The fading effect of chlorine bleaching is rough, and the method is mainly used for bleaching indigo jean. After the plate is bleached, the residual chlorine in water and clothes should be neutralized by sea wave to stop bleaching, and then STONE-grinding is carried out after bleaching, so that the plate is called STONE rinsing (BLEACH STONE WASH).

(4) SAND washing (SAND WASH). The sand washing uses a plurality of alkaline and oxidizing auxiliary agents, so that clothes have certain fading effect and old feeling after being washed, if a stone mill is matched, a layer of soft and white fluff is generated on the surface of the washed cloth, and a plurality of softening agents are added, so that the washed fabric is soft and soft, and the wearing comfort is improved.

The existing bronzing film is difficult to bear the strenuous washing strength. At present, the defects of hard hand feeling, poor washing fastness, insufficient glittering gold stamping effect and the like of clothes gold stamping generally exist, so that a gold stamping film capable of resisting industrial washing needs to be developed.

Disclosure of Invention

Based on the above, the invention aims to provide the gold stamping film with high elasticity and no burst, which has excellent tensile property, is full and not sticky to hand, has a high gold stamping effect, is resistant to industrial washing and high in water washing resistance, and still keeps a good gloss effect after multiple water washing.

The technical scheme adopted by the invention is as follows:

the utility model provides a bronzing film of resistant industrial washing which characterized in that: the light-cured protective layer is formed by coating light-cured resin on the release layer, and the light-cured resin is polyethylene terephthalate.

The industrial washing resistant gold stamping film selects PET as a substrate carrier, because the PET has the following advantages: high temperature resistance (melting point is 170 ℃), easy degradation (a combustible film is strong in electrolytic capacity, a PET layer is peeled off after gold stamping is finished, environmental pollution is not easily caused due to the combustible film which can be incinerated), a one-way tensile film (PET has longitudinal tensile property, good ductility and is not easy to break when longitudinally stretched, and transverse tensile is easy to break) and the like. Other common films such as OPP film and PVC film do not have the advantages, for example, the heat-resistant temperature of the OPP film is 90 ℃, and the OPP film is a combustion-supporting film; the heat-resistant temperature of the PVC film is 75 ℃, and the PVC film is a flame-retardant film. The light-cured protective layer uses light-cured resin taking polyethylene terephthalate as a raw material, the light-cured protective layer has tensile elasticity and impact resistance after being irradiated by ultraviolet rays for 1-2 seconds, the light-cured protective layer is resistant to high temperature and pressure and does not deform, and the coating is a key part for realizing industrial washing resistance. According to the invention, the release layer, the photocuring layer, the electroplated layer and the bonding layer are sequentially arranged on the PET layer, so that the gold stamping film has high elasticity, no burst, excellent tensile property, higher light reflection and gold stamping effects and industrial washing resistance.

Further, the thickness of the light-cured protective layer is 0.3-0.5 μm. The thickness of the light-cured protective layer is limited to ensure the capability of the bronzing film to resist industrial washing.

Furthermore, the thickness of the PET layer is 95-105 μm.

Furthermore, the release layer is formed by coating a polyurethane release agent, and the thickness of the release layer is 3-5 microns. The release agent is selected from polyurethane, so that the release layer is higher and thinner in softness and good in hand feeling, and the proper thickness is matched with that of the photocuring protective layer, so that industrial washing can be resisted more effectively.

Further, the electroplated layer is an aluminum metal layer, the thickness of the electroplated layer is preferably 0.4-0.5 μm, if the thickness is too thick, the electroplated layer cannot be accepted in appearance, and if the thickness is too thin, the electroplated layer cannot generate enough gold stamping effect.

Furthermore, the material of the bonding layer is PVA, and the thickness of the bonding layer is 0.5-0.7 μm. The thickness is to ensure that the electroplated layer and the light-cured protective layer can be firmly and stably fixed with the surface of the fabric to be ironed. Because the melting temperature of the hot melt adhesive of the bonding layer of the gold stamping film is about 90 ℃, the bonding layer can be melted to generate bonding capability at the temperature, and can keep the ironed fabric from being damaged, and particularly shows more active performance effect on the fabric of the clothes and garments for children (the fabric for children is mostly cotton fabric, the mechanical strength of cotton fiber can be damaged at high temperature, and PVA is used as the bonding layer to meet the gold stamping requirement of the cotton fabric); because the adhesive layer is made of PVA hot melt adhesive, the hot stamping film substrate is required to be resistant to high temperature, and the PET is also determined to be more suitable as the hot stamping film carrier.

The invention also provides a preparation method of the industrial washing resistant bronzing film, which is characterized by comprising the following steps:

preparing a release layer: selecting a PET film as a coating base material, coating a polyurethane release agent on the PET film, and baking to form a release layer;

preparing a photocuring protective layer: coating photo-curing resin on the release layer, wherein the photo-curing resin is polyethylene terephthalate and is formed into a photo-curing protective layer through photo-curing;

and (3) vacuum plating preparation: performing vacuum electroplating on the photocuring protective layer, and depositing metal on the surface of the photocuring protective layer to form an electroplated layer;

preparing an adhesive layer: and coating hot melt adhesive on the electroplated layer, and baking to form the adhesive layer.

Further, the preparation of the release layer is carried out at the baking temperature of 150 ℃ for 3 minutes. The peeling strength can be effectively adjusted, a high-quality separation effect, an anti-sticking and antistatic coating is provided for peeling after the transfer ironing, and the generation of static electricity is reduced.

Further, when the photocuring protective layer is prepared, the photocuring resin is cured and molded after being irradiated by ultraviolet light for 1-2 seconds. The light-cured protective layer selects polyethylene terephthalate as light-cured resin, has tensile elasticity and impact resistance after being irradiated by ultraviolet rays, is resistant to high-temperature pressing and cannot deform, and the coating is a key part for realizing industrial washing resistance.

Further, the adhesive layer was prepared at a baking temperature of 85 ℃ for 5 minutes. The baking condition and the material selection and the thickness selection of the bonding layer act together to ensure that the electroplated layer and the light-cured protective layer can be firmly and stably fixed with the surface of the fabric to be ironed.

The invention has the beneficial effects that:

(1) the invention selects the PET film as the carrier of the gold stamping film, and fully utilizes the following advantages of the PET film: high temperature resistance (melting point is 170 ℃), easy degradation (a combustible film is strong in electrolytic capacity and not easy to cause environmental pollution), a one-way tensile film (longitudinal stretching has good ductility and is not easy to break, transverse stretching is easy to break) and the like;

(2) when the hot melt adhesive of the bonding layer (outer coating) of the gold stamping film is PVA, the PVA is combined with the PET film as a gold stamping film carrier, and particularly, the more active performance effect is shown on the fabric of the clothes of children;

(3) the bronzing film has high elasticity, does not burst, has excellent tensile property, and accords with the application of clothes made of elastic jean fabric in daily behaviors;

(4) the bronzing film disclosed by the invention is full in hand feeling and free from sticking to hands after being subjected to rotary bronzing, and the bronzing effect of the item can have a higher reflecting effect through thermoplasticity generated under a high-temperature condition, so that the bronzing film is more obvious on a sportswear;

(5) the gold stamping film disclosed by the invention is resistant to industrial washing and highly resistant to water washing, so that the clothes still keep a good gloss effect after being washed for many times, and particularly environment-friendly regenerated fiber fabrics, sportswear and the like which are friendly to the environment are utilized.

Drawings

FIG. 1 is a schematic structural view of an industrial laundering resistant bronzing film of the present invention;

wherein: 1-PET layer, 2-release layer, 3-photocuring protective layer, 4-electroplated layer and 5-bonding layer.

Detailed Description

For a better understanding and practice, the invention is described in detail below with reference to specific embodiments.