KR101373928B1 - Heat transfer coating solution composition and digital sublimation transfer textile using thereof - Google Patents

Abstract

The present invention relates to a heat transfer coating solution composition and digital sublimation transfer cotton textiles using the same, wherein the heat transfer coating solution comprises, based on 100 parts by weight of water: 2-10 parts by weight of an ethylene vinyl acetate (EVA) copolymer having 60% of solid content; 0.1-1 parts by weight of at least one kind of acid selected from acetic acid, formic acid, citric acid, tartaric acid and tannic acid; 0.5-2 parts by weight of at least one kind of resin selected from poylurethane having 40% of solid content, an acrylates copolymer and a polyester copolymer; 0.1-10 parts by weight or a silane or silicone resin; 1-5 parts by weight an air freshener; and 0.1-1 parts by weight of an antifoaming agent, and the pH of the solution is 4-8. The heat transfer coating solution disperses and dissolves a resin component and acid at an appropriate rate in water so as to coat it on cotton textiles and dry the textiles. Thereby, the cotton textiles manufactured by sublimation heat transfer with transfer paper on it has high-resolution printed matter and excellent color fastness to washing, and additionally, not only is harmless to the human body but also produce excellent effects in enhancing flexibility, tactility and breathability of the cotton textiles itself.

Description

Heat transfer coating liquid composition and digital sublimation transfer cotton fabric using the same {HEAT TRANSFER COATING SOLUTION COMPOSITION AND DIGITAL SUBLIMATION TRANSFER TEXTILE USING THEREOF}

The present invention relates to a thermal transfer coating composition and a digital sublimation transfer cotton fabric using the same, and more particularly, to a sublimation type thermal transfer coating composition printed by an inkjet printer or a cotton fabric or T / C, T / R, T / W, C. / P. By coating and drying the surface of cotton blended fabrics such as P / C, C / R, T-shirts, etc., and then sublimating heat transfer with transfer paper, thermoelectric having high resolution and excellent flexibility, touch, breathability and washing fastness It relates to a four coating liquid composition.

In general, thermal transfer is performed on fabrics made of polyester-based resins such as PET fabrics. Recently, thermal transfer methods are required for cotton fabrics and T / C fabrics, but cotton blended fabrics such as cotton fabrics and T / C fabrics The fabric is not compatible with the sublimation transfer ink due to its characteristics, and thermal transfer is not performed properly. Even if the thermal transfer is performed, not only a high-resolution color can be expressed, but also black is not particularly well represented.

In addition to the above disadvantages, the heat transfer to the cotton fabric is coated with a resin component is added to the dye, the touch is stiff and not ventilated, wash fastness is a cotton fabric product manufactured by thermal transfer has a problem that is difficult to commercialize. Therefore, in the present invention, by developing a heat transfer cotton coating solution and coating it on the cotton fabric, to improve the feel of the soft cotton fabric in the product while maintaining the high-resolution and excellent washing fastness during thermal transfer, to provide a way to excellent ventilation do.

In order to solve the above problems, there has been an effort to solve the above problems by maintaining the high resolution and excellent washing fastness and the feel of the fabric during thermal transfer due to the development of the transfer paper itself.

For example, as in the Republic of Korea Patent Publication No. 10-2000-0051965 (published date: 2000. 08. 16), in the case of transferring by a thermal transfer method using a transfer paper, a silicone resin binder on the base paper A release layer is formed, and the lower transfer layer is formed of ethylene vinyl acetate copolymer thereon, and the upper transfer layer contains a heat-adhesive resin, a curable binder, and the like. Thermal transfer paper for color inkjet printers can be improved, which can improve the elasticity and wash fastness of the transfer image, and can be environmentally friendly by minimizing the use of organic solvents in the process and minimizing the manufacturing process. However, this is a thermal transfer paper. Due to the resin composition and thickness of the transfer layer laminated on the fabric, the elasticity and wash fastness of the transferred image transferred to the fabric are improved. It was examined by a limit.

In addition, the manufacturing method of the printing sheet of the Republic of Korea Patent Publication No. 10-0681566 (Registration Date: Feb. 05, 2007) forms an ink-receiving layer excellent in the fixability of the thermal transfer ink and The present invention relates to a method for efficiently manufacturing a silicone printing sheet that can be easily peeled off, wherein the manufacturing method comprises a coating liquid containing at least a cellulose-based polymer and a silicone-based resin as a component, and at least the surface layer on which the surface layer to be coated is poly (vinylidene fluoride). Developing on a carrier film consisting of; And a step of drying the coating to form a layer to be printed, but to date, when sublimated by thermal transfer to a cotton fabric or the like, a coating liquid having a high resolution and excellent flexibility, feel, breathability, and wash fastness Is not being presented.

On the other hand, in the present invention, by developing a coating liquid to be applied to the substrate when thermal transfer to a cotton fabric substrate, it has a high resolution during thermal transfer, maintains excellent washing fastness, and a thermal transfer coating liquid excellent in the feel of the soft cotton fabric and the ventilation of the product The composition was developed to complete the present invention.

Republic of Korea Patent Publication No. 10-2000-0051965 (published date: 2000. 08. 16) Republic of Korea Patent Publication No. 10-0681566 (Registration Date: 2007. 02. 05) Republic of Korea Patent Publication No. 10-2009-0046269 (published date: 2009. 05. 11)

An object of the present invention is to apply a sublimation type thermal transfer coating liquid composition printed by an inkjet printer to a cotton fabric or cotton blended fabric and the like, and then dried, and then by sublimation heat transfer with a transfer paper thereon to have high resolution while providing flexibility, feel, breathability and washing fastness. It is to provide an excellent thermal transfer coating liquid composition.

Thermal transfer coating liquid composition of the present invention for solving the above problems is based on 100 parts by weight of water, 2 to 10 parts by weight of EVA (Ethylene vinyl acetate) copolymer having a solid content of 60%; 0.1 to 1 part by weight of any one or more acids selected from acetic acid, formic acid, citric acid, tartaric acid, and tannic acid; 0.5 to 2 parts by weight of any one or more resins selected from a polyurethane, a acrylate copolymer, and a polyester copolymer having a solid content of 40%; 0.1 to 10 parts by weight of silane (Silane) or silicone (Silicone) resin; Fragrance 1 to 5 parts by weight; It comprises 0.1 to 1 parts by weight of the antifoam each, characterized in that the pH of the aqueous solution is 4 to 8.

In addition, the silane is formed as a homogeneous solution hydrolyzed by stirring alkoxysilane (Alkoxysilane), the silicone resin is a silicone polyester (Silicone polyester), a silicone glycol copolymer (Silicone glycol copolymer) alone or two or more Agitated to form an emulsified homogeneous solution.

In addition, the digital sublimation transfer cotton fabric of the present invention is characterized in that the thermal transfer coating liquid composition by spray coating or immersion coating on the cotton fabric and dried, followed by sublimation heat transfer at a temperature of 170 ~ 210 ℃.

The thermal transfer coating liquid composition of the present invention is prepared by dispersing and dissolving a resin component and an acid in water in an appropriate ratio, coating the cotton fabric, and drying the same. It is excellent and not only harmless to the human body but also has an excellent effect on improving the flexibility, feel and breathability of the cotton fabric itself.

The thermal transfer coating liquid composition of the present invention, based on 100 parts by weight of water, 2 to 10 parts by weight of EVA (Ethylene vinyl acetate) copolymer having a solid content of 60%; 0.1 to 1 part by weight of any one or more acids selected from acetic acid, formic acid, citric acid, tartaric acid, and tannic acid; 0.5 to 2 parts by weight of any one or more resins selected from a polyurethane, a acrylate copolymer, and a polyester copolymer having a solid content of 40%; 0.1 to 10 parts by weight of silane (Silane) or silicone (Silicone) resin; Fragrance 1 to 5 parts by weight; It comprises 0.1 to 1 part by weight of an antifoaming agent, respectively.

Hereinafter, the thermal transfer coating liquid composition according to the present invention will be described, which is intended to exemplify the self invention having ordinary skill in the art to which the present invention pertains easily. It does not mean that the technical spirit and scope are limited.

The present invention contains 2 to 10 parts by weight of an EVA (Ethylene vinyl acetate) copolymer having a solid content of 60% with respect to 100 parts by weight of water, which is intended to promote adhesion of pigments deposited from transfer paper during surface transfer of cotton fabrics and the like. It is a water-soluble adhesive for use, and the water solubility is excellent by using EVA having a solid content of 60%, and when the amount is used in an amount of more than 10 parts by weight based on 100 parts by weight of water, the pigment is excellent but the fabric is stiff. There is a risk of poor breathability and touch.

Next, the acid component dissolved in water is to maintain the pH of the aqueous solution to about 4 to 8 by including a small amount of 0.1 to 1 parts by weight of any one or two or more selected from acetic acid, formic acid, citric acid, tartaric acid, tannic acid, From this action, the resin component added later becomes excellent in dispersibility and emulsion stability with respect to water, and improves dryness and solubility.

In addition, at least one resin selected from polyurethane, acrylate copolymer, and polyester copolymer, which is essentially added, has a solid content of about 40%. It is excellent in acidity, and the resin is preferably a water-dispersible block type as a cationic resin, which is contained in an amount of 0.5 to 2 parts by weight based on 100 parts by weight of water, and thus curability is appropriately controlled to use a transfer paper. Figures and characters printed on cotton fabrics are clearly printed, and the durability of printed materials can be guaranteed for a long time. This, of course, improves the fixability and dryness of the ink using the cationic dye present in the transfer paper. Therefore, the present invention can improve the stretchability and wash fastness of the transfer image after the transfer, and can be environmentally friendly and economical by suppressing the use of the organic solvent.

The present invention is a porous material containing colloidal silica or alumina sol in colloidal state in the output medium in order to improve the porosity of printed matter in the thermal transfer paper shown in the prior art by the above technical configuration. Discomfort such as forming an absorbing layer can be eliminated.

In addition, in the present invention, silane (Silane) or silicone (Silicone) resin is a fabric softening agent that simultaneously gives the affinity to the fabric while preserving the inherent physical properties of the silicone oil, the characteristics such as resilience and lubricity inherent in silicone oil By this, it is possible to impart excellent flexibility and feel to the fiber, and the amount of use thereof has been studied to be preferably 0.1 to 10 parts by weight based on 100 parts by weight of water in terms of emulsion stability.

Specifically, the silane is formed as a homogeneous solution hydrolyzed by stirring alkoxysilane (Alkoxysilane), the silicone resin is a silicone polyester (Silicone polyester), a silicone glycol copolymer (Silicone glycol copolymer) alone or two It is formed as a homogeneous solution emulsified by stirring above.

And it is preferable to use the water-soluble fragrance and antifoaming agent added in the present invention to about 1 to 5 parts by weight and 0.1 to 1 part by weight, respectively, within the range of not impairing the physical properties of the present invention, the specific kind is a matter known in the art Detailed description thereof will be omitted.

In addition, the present invention may further improve solubility and dryness of the resin by additionally including 1 to 5 parts by weight of any one or more alcohols selected from isopropyl alcohol (IPA) and methyl alcohol (Methyl alcohol).

The thermal transfer coating liquid composition prepared as described above is spray-coated or immersed in cotton fabric, dried, and then sublimated to thermal transfer at a temperature of 170 to 210 ° C. to maintain high-quality washing fastness and soft cotton fabric feel while maintaining high touch and breathability. You get an excellent product.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention.

≪ Example 1 >

2 g of EVA copolymer having a solid content of 60%, acetic acid 0.1g, 0.5 g of polyurethane having a solid content of 40%, 0.1 g of alkoxysilane, 1 g of fragrance, and 0.1 g of antifoam were added to 100 g of water for about 1 to 2 hours. By stirring, a thermal transfer coating solution composition was prepared.

<Example 2>

5 g of EVA copolymer having a solid content of 60%, acetic acid 0.5g, 1 g of polyurethane with a solid content of 40%, 5 g of alkoxysilane, 3 g of fragrance, and 0.5 g of antifoam were added to 100 g of water and stirred for about 1 to 2 hours. The thermal transfer coating liquid composition was prepared.

<Example 3>

10 g of EVA copolymer with 60% solids content, 1 g of acetic acid, 2 g of polyurethane with solids content of 40%, 10 g of alkoxysilane, 5 g of aroma, 5 g of antifoam, and 1 g of antifoam were added and stirred for about 1 to 2 hours. A coating solution composition was prepared.

<Example 4>-<Example 6>

Each of the thermal transfer coating liquid compositions prepared in Examples 1 to 3 was spray-coated on a cotton fabric T-shirt, dried and cooled, and then sublimed to thermal transfer at a temperature of 170 to 210 ° C. using a transfer paper.

<Comparative Example>

Without the thermal transfer coating solution composition coated on the same cotton fabric T-shirt as in the above example, the transfer paper was sublimated thermal transfer to a temperature of 170 ~ 210 ℃.

<Experimental Example>

The physical properties such as resolution, transfer efficiency, fabric flexibility, air permeability, adhesiveness, wash fastness, etc. of the products manufactured according to Examples 4 to 6 and Comparative Examples were measured several times (10 times) and the average value of the result was measured. It is shown in Table 1 below.

Properties

Evaluation results


Test Methods
Example 4

Example 5
Example 6
Comparative Example
resolution

4.0
4.1
4.2
2.8
5-point method
Transfer efficiency (settleability)

4.2
4.6
4.8
3.5
5-point method
Flexibility

4.6
4.7
4.8
2.4
5-point method
Breathability of fabric

4.9
4.7
4.5
3.6
5-point method
Print adhesiveness

4.3
4.5
4.6
2.9
5-point method
Wash fastness

4.9
4.7
4.2
3.5
5-point method

-The evaluation result is the average of the grades divided into 1st grade (bad) ~ 5th grade (good).

In the results of Table 1, the digital sublimation transfer cotton fabric using the thermal transfer coating liquid composition of the present invention exhibits superior performance than conventional products in all properties such as resolution, transfer efficiency, fabric flexibility, breathability, adhesion, wash fastness , The thermal transfer coating liquid composition of the present invention, as well as cotton fabric T / C, T / R, T / W, C / P. After coating and drying directly on products such as cotton blended fabrics such as P / C, C / R, T-shirts, and the like, and by sublimation heat transfer with a transfer paper, it shows a significantly different quality compared to existing products, Various substitutions, modifications, and changes can be made by those skilled in the art without departing from the scope of the invention and can be used in various applications and forms.

Claims (4)

2 to 10 parts by weight of EVA (Ethylene vinyl acetate) copolymer having a solid content of 60% based on 100 parts by weight of water; 0.1 to 1 part by weight of any one or more acids selected from acetic acid, formic acid, citric acid, tartaric acid, and tannic acid; 0.5 to 2 parts by weight of any one or more resins selected from a polyurethane, a acrylate copolymer, and a polyester copolymer having a solid content of 40%; 0.1 to 10 parts by weight of silane (Silane) or silicone (Silicone) resin; Fragrance 1 to 5 parts by weight; Antifoaming agent is made of an aqueous solution containing 0.1 to 1 parts by weight, respectively
The silane is a homogeneous solution hydrolyzed by stirring alkoxysilane, and the silicone resin is emulsified by stirring alone or two or more kinds of silicone polyester and silicone glycol copolymer. Homogeneous solution,
The pH of the aqueous solution is a thermal transfer coating liquid composition, characterized in that 4 to 8.
delete delete A cotton fabric obtained by spray coating or immersion coating on a cotton fabric of the thermal transfer coating liquid composition according to claim 1, followed by drying, followed by sublimation thermal transfer at a temperature of 170 to 210 ° C.