KR101303909B1 - eco-friendly binder for printing and method for printing clothes using the same - Google Patents

Abstract

The present invention relates to a printing binder and a printing method using the same, which can be applied to a mesh fabric having a fine perforation without the problem of environmental pollution for the discharge of harmful substances such as heavy metals and environmental hormones, the printing binder is an acrylic resin 36 to 45% by weight, 10 to 15% by weight of polyurethane resin, and 45 to 49% by weight of a plasticizer composed of a mixture of caproic acid, benzoic acid and trimethylolpropane, or salts or derivatives thereof; In addition, 77 to 95% by weight of this environmentally friendly printing binder is added to 5 to 23% by weight of finely pulverized pigment powder in the printing process of garments comprising the preparation process of the printing arc and the chlorine, screen printing process and heat treatment process. By mixing and dispersing, a printing arc is formed, and after printing, the chlorine is heat-treated at 100 to 120 ° C. for 10 to 20 seconds, and after the heat treatment, the chlorine is post-treated in a chamber at 180 to 200 ° C. for 70 to 90 seconds. In addition, the printing pattern formed on the surface of the stain is laminated so as to protrude onto a thin film without clogging the fine perforation on the surface of the stain, it is also characterized in that the printing of the printing of the print is excellent and the color fastness and washing fastness excellent It is done.

Description

Eco-friendly binder for printing and method for printing clothes using the same}

The present invention relates to an environmentally friendly printing binder and a printing method of a garment using the same, in more detail, does not generate environmental hormones such as dioxin harmful to the human body and has a perforated (hole) mesh ( mesh) It is an environmentally friendly printing binder with excellent color and washing fastness and high production efficiency without staining of pigments and blocking of perforations even when printing fabrics, and a method of printing clothes using the same.

Printing is done by printing the printing dyes containing dyes or pigments directly onto cloth or clothing and by heating or other post-treatment process. As a method of expressing the shape of the garment, a binder that serves as a crosslinking with the fabric is used in the printing process by the pigment, there is no direct binding force to the fabric to fix it.

As a binder for pigment printing, various synthetic resins are used. Among them, many polyurethane resins are used, but in this case, it takes a long time to dry and the processing process is complicated. Aqueous polyvinyl chloride (PVC) resins having good water resistance and adhesion to fabrics are used.

However, the PVC resin binder contains a large amount of chlorine, which has been found to be a major cause of dioxin generation, which generates environmental hormones. In addition to the synthetic resin binder, a phthalate-based plasticizer is mainly used in the printing process. In the case of low-molecular substances, they are easily eluted out of the product during the wearing of clothing. Above all, as the eluted plasticizer is found to be a highly toxic environmental hormone, many countries including Korea and the United States prohibit the use of these substances. .

On the other hand, in order to dry quickly to facilitate printing work, a lot of water-based pigment ink is recently used. In the case of water-based pigment ink, the color spreads during printing, and it reacts sensitively to the temperature and humidity of the workplace, thereby making the color tone ( tone: not only constant, but also dyeable only to cotton and cotton blended fabrics (T / C), not applicable to other fabrics, such as synthetic fibers, and a lot of defective products because the color is uneven when printing several sheets The production efficiency is low due to the fact that it is difficult and the working conditions are limited.In particular, since the water quality is contaminated by the waste water generated during the post-treatment process and the work table during printing by the aqueous pigment ink, Water pollution is emerging as a social problem.

In addition, in the case of mountaineering clothes and sportswear, especially American football clothes, it is not made of natural fibers such as cotton fibers, but rather polyester fibers, poly It is made of blended fabrics made mainly of synthetic fibers such as amide fibers and polyurethane fibers, and these sports fabrics and garments are perforated in various shapes such as squares and ellipses on the entire surface to further increase absorbency and moisture permeability. Equipped.

Therefore, when the aqueous pigment ink is used to print mesh fabrics or garments with a large number of micropores, the surface of the final dyestuff is uneven, and color bleeding becomes more severe. It could not be exhibited properly, and of course, a uniform color tone could not be obtained.

Therefore, it can replace plasticizer of PVC resin binder and phthalate, which is almost essential in printing process, and it is eco-friendly, and it can be applied to various fabrics and garments by solving problems in aqueous pigment ink. In order to develop new binders that are easy, have excellent color fastness and washing fastness, and can greatly increase production efficiency, the related industry and academia have made many plans, but there is no special alternative yet.

The inventors have also been engaged in the manufacture of sports clothing for many years, recognizing the problems in the printing process as described above and do not emit harmful substances, such as environmental hormones, even though the work efficiency is high, and above all, there are microscopic perforations of various shapes and the surface is flat. It is possible to obtain excellent color fastness and fastness to washing even when applied to sports fabrics and garments with irregularities, and have been intensively researched to develop binders for pigment inks that have high production efficiency and no environmental pollution. Inner after touch of the binder is good, and it can print more than 5,000 sheets at one time, so the production efficiency is very high. In the post-treatment process, no harmful substances such as heavy metals and environmental hormones are discharged, It has been developed an eco-friendly printing binder without the concern of water pollution.

Particularly, according to the present invention, various types of fine perforations are provided on the surface thereof to improve ventilation and moisture permeability, such as American football suits, so that it can be easily applied to functional fabrics or clothes that are difficult to print in uniform tones, and color and washing fastnesses. We have developed an excellent and very environmentally friendly printing binder and the printing method using the same.

Environmentally friendly printing binder according to the present invention
36 to 45% by weight of acrylic resin, 10 to 15% by weight of polyurethane resin and 45 to 49% by weight of plasticizer;

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The plasticizer is characterized in that it consists of a mixture of caproic acid (caproic acid), benzoic acid (benzoic acid) and trimethylolpropane (trimethylolpropane), or salts or derivatives thereof.

The plasticizer is a mixture consisting of 60 to 70% by weight of capronic acid, 25 to 30% by weight benzoic acid, and 5 to 10% by weight of trimethylolpropane.

The capronic acid constituting the plasticizer applied to the present invention is also referred to as hexanoic acid (hexanoic acid) is a carboxylic acid derived from hexane is a colorless oily liquid and can be applied as capronate, also called benzoic acid As aromatic carboxylic acid called benzoic acid, derivatives such as salicylic acid and acetylsalicylic acid are also applicable, and trimethylolpropane is widely used in the polymer industry, and derivatives thereof such as acylation, alkoxylation, ethoxylation or propoxy Silylated trimethylolpropane is also applicable.

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According to the present invention, the printing process of the printing foil and the chlorine, the screen printing process to apply the prepared printing foil after placing the chlorine on the printing plate, and the heat treatment of the tainted chlorine at high temperature to firmly fix the printing portion to the chlorine In the normal printing method of the garment consisting of a heat treatment step to

The printing foil is formed by adding 77 to 95% by weight of the environmentally friendly printing binder of the above components and the composition ratio to 5 to 23% by weight of the finely ground pigment powder, mixing and dispersing uniformly. ;

The heat treatment is performed at 100 to 120 ° C. for 10 to 20 seconds;

After the heat treatment step, the chlorine is post-treated in a chamber for 70 to 90 seconds at 180 ~ 200 ℃.

In addition, a small amount of a known wet dispersant may be additionally applied to the printing agent as necessary, and these wet dispersants may include aliphatic carboxylic acids and salts thereof, higher alcohol sulfate esters, alkyl sulfonic acid salts, alkyl phosphate esters, and aliphatic amine salts. And quaternary ammonium salts, sodium polyacrylate, and organic or inorganic high molecular weight anionic, cationic or neutral compounds of sodium lignin sulfonate, which can be applied alone or in a mixed state.

Wetting dispersant deagglomerates through three-dimensional stabilization between pigments and gives the same charge to pigments, causing electrical repulsion between pigments, preventing the possibility of pigment reagglomeration after artificial dispersion, lowering viscosity and lowering surface tension, contributing to color uniformity .

The acrylic resin constituting the environmentally friendly printing binder according to the present invention is derived from acrylic acid, methacrylic acid, or a compound thereof, and includes polymethyl acrylate, polymethyl methacrylate, and the like. Ordinary may be applied, the application amount is applied to 36 to 45% by weight based on the total weight of the binder composition, when less than the lower limit of 36% by weight is lowered the wash fastness, while the upper limit 45% by weight In this case, the adhesion of the printing portion to the stain is excellent, but the touch is hard and the touch feeling is reduced, and when the polyurethane resin is applied less than 10% by weight, the flexibility of the stain is lowered. As inappropriate, the two resins must each be applied within the above range.

In addition, the plasticizer constituting the environmentally friendly printing binder according to the present invention comprising a mixture of caproic acid, benzoic acid and trimethylolpropane, or salts or derivatives thereof is a printing process. When the acrylic resin and the polyurethane resin to stably dissolve to give flexibility to the salts, when the application amount is less than 45% by weight it can not completely dissolve the resin of the two components constituting the binder of the present invention Therefore, even after printing, the resins are fixed in the granular state, which causes the printing failure, and when it exceeds 49% by weight, the resin of the two components is well dissolved, but it requires more time to harden the printing foil and the washing fastness is also lowered. It is preferred to be added within the specified range.

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In addition, the plasticizer for the environmentally friendly printing of the present invention during the printing process when mixing the caproic acid, benzoic acid and trimethylolpropane based on the total weight of 60 to 70% by weight, 25 to 30% by weight, 5 to 10% by weight, respectively It is most suitable for the swelling and gelation of the acrylic resin and the polyurethane resin constituting the binder. If the upper limit and the lower limit of each of these binders are exceeded, the desired swelling and gelling phenomena cannot be obtained, and thus the desired washing fastness of the tainted substance cannot be obtained.

According to the printing method of the garment of the present invention, the pigment powder finely pulverized in advance in the environmentally friendly printing binder 77-95% by weight according to the present invention according to the color, 5 to 23% by weight, For example, 5% by weight of black pigment and 23% by weight of white are added to uniformly mix and disperse them to prepare a printing foil, and after applying them to screen printing, the dyeing salts are applied at 100 to 120 ° C. By heat treatment at a high temperature for 10 to 20 seconds, the plasticizer made of the specific components penetrates well into the acrylic resin and the polyurethane resin constituting the environmentally friendly printing binder of the present invention so that these resins can be sufficiently swollen. At this time, if the temperature and the treatment time in the heat treatment step does not meet the lower limit, the drying is not complete, which will interfere with the progress of the next 2 degrees work, so a heat treatment of 10 seconds or more is required at least 100 ° C., while the production efficiency It is not necessary to carry out the treatment under conditions exceeding the above upper limit.

In addition, the acrylic resin constituting the environmentally friendly printing binder of the present invention by the mutual synergy by the post-treatment of the chlorine in the chamber again at 180 ~ 200 ℃ for 70 ~ 90 seconds after the heat treatment step Since the polyurethane resin is well mixed and adhered to the chlorine with the pigment, it is possible to integrally bond the constituents of the binder and the binder including the pigment.

In other words, according to the printing method of the present invention, the acrylic resin, the polyurethane resin and the pigment constituting the printing binder of the present invention by the post-treatment process under such specific conditions do not penetrate into the fabric surface of the stain, Since the film is formed into a thin film, that is, it is firmly and integrally bound to the distal surface of the to-be-contained object, thereby forming a printing pattern of a desired shape on the distal surface of the to-be-contained object.

When the chamber temperature in the post-treatment process is lower than 180 ° C. and shorter than 70 seconds, the constituents of the printing binder of the present invention are not completely dissolved, and are processed for more than 90 seconds at a high temperature exceeding 200 ° C. If you do so damage to the fabric should proceed within the above range.

Therefore, in the case of printing a stain such as a garment by using the environmentally friendly printing binder according to the present invention, unlike the printing by the conventional aqueous pigment ink, the pigment is permeated and adhered to the surface of the stain. Since the pigment is fixed while laminating the protruding thin film, it is possible to obtain a thin-patterned bleeding material having excellent color fastness and washing fastness of the chlorine.

As described above, when printing the environmentally friendly printing binder and the dyeing material such as clothing using the same, it is possible to simultaneously print 5,000 to 10,000 sheets at a time, even though the color tone is uniform throughout, regardless of the material of the dyeing material. The manufacturing cost can be lowered, and the work process is very simple since the cleaning process of the workbench is simple after work. Above all, there are minute perforations of various shapes, so the surface is uneven and the color fastness is excellent even when printing the contaminant with irregularities. And wash fastness, good touch of the chlorine, and can completely solve the environmental pollution problem of the discharge of harmful substances such as heavy metals and environmental hormones in the printing process, as well as fear of water pollution by waste water Not at all.

In order to more easily understand the characteristics of the environmentally friendly printing binder and the printing method of a garment using the same according to the present invention will be described one example below, the present invention is not limited to this embodiment, the present invention is not limited to this embodiment It will be readily understood that modifications and variations are possible within the scope of the claims.

(Example)

First, an oval fine perforation was formed on the entire surface, and a large number of blue American football t-shirts made of nylon fiber, in which a small amount of polyurethane yarn was incorporated, were prepared as the salt solution.

To 45% by weight of acrylic resin powder and 10% by weight of polyurethane resin powder, a plasticizer made of 60% by weight of capronic acid, 30% by weight of benzoic acid, and 10% by weight of trimethylolpropane was added and mixed well. Then, 23 wt% of finely pulverized white pigment powder was added to 77 wt% of the printing binder, and 15 wt% of orange fine pigment powder was added to 85 wt% of the printing binder, and mixed uniformly. Dispersion was performed to prepare two colored printing arcs.

The prepared dyeing solution is placed in a rotary printing machine with eight printing plates, and the orange printing foil prepared on the printing plate is applied on the printing plate and squeezed to match the shape of the number consisting of white and orange stripes on the sleeve and the same color on the chest. After screen printing, heat-treat at 120 ° C. for 10 seconds, and then, on the orange-colored dyeing solution, white printing plate pattern is applied, and the white printing foil prepared on it is applied again, and screen printing in the same manner as above. Heat treatment was performed under the same temperature and conditions.

Thereafter, the tainted material of the heat-treated T-shirt was post-treated in a chamber at 170 ° C. for 70 seconds to complete printing.

The obtained blood stains, that is, the American football t-shirts with oval fine perforations, have a number of printed patterns of white and orange stripes and the same color on their sleeves and chests, respectively. Without obstructing the perforation on the surface of the water was formed protruding firmly in a thin film form, the color was vivid and the color tone was uniform throughout the pattern.

In addition, the finished printed stain was washed 50 times by a conventional hand washing method, but the printed pattern was not damaged at all. It was determined that the printing binder of the present invention formed a thin film on the fabric of the to-be-contaminated material and thus solidified while being firmly adhered to the surface of the to-be-contained object, thereby exhibiting excellent washing fastness.

Apart from this, treatment of the chlorine in the same manner as above, but the addition of a small amount of a conventional wetting dispersant consisting of alkylsulfonic acid salts and aliphatic amine salts to the printing arc, only slightly improved results in color fastness after printing It was able to obtain and was the same in other washing fastness and a touch.

In addition, after the printing process was completed, the printing arcs on the printing plate and the workbench could be wiped clean using a conventional oil-based cleaner, and there was no concern about environmental pollution due to the waste water generated when washing the workbench or the like.

Claims (5)

In the printing binder that can be applied when printing textiles or clothes of various materials,
36 to 45% by weight of acrylic resin, 10 to 15% by weight of polyurethane resin, and 45 to 49% by weight of plasticizer;
The plasticizer is an environmentally friendly printing binder, characterized in that consisting of a mixture of capric acid, benzoic acid and trimethylolpropane, or salts or derivatives thereof. The environmentally friendly printing binder according to claim 1, wherein the plasticizer is a mixture consisting of 60 to 70 wt% of capronic acid, 25 to 30 wt% of benzoic acid and 5 to 10 wt% of trimethylolpropane. In order to display the pattern partially on fabrics or garments of various materials, the printing process of the printing foil and the dye is placed on the printing plate, the screen printing process is applied to the printed printing foil, and the printed dye is printed at high temperature. In the printing method of clothing comprising a heat treatment step of firmly fixing the printing glyph part to the stain,
The printing paste comprises 36 to 45% by weight of acrylic resin, 10 to 15% by weight of polyurethane resin and 45 to 49% by weight of plasticizer, and the plasticizer is caproic acid, benzoic acid and trimethylolpropane, or salts or derivatives thereof. 77 to 95% by weight of an environmentally friendly printing binder comprising a mixture is added to 5 to 23% by weight of finely ground pigment powder before mixing and dispersing;
The heat treatment is performed at 100 to 120 ° C. for 10 to 20 seconds;
After the heat treatment step, the printing method of the garment using the environmentally friendly printing binder, characterized in that the after-treatment in the chamber for 70 to 90 seconds at 180 to 200 ℃. The environment according to claim 3, wherein the plasticizer constituting the environmentally friendly printing binder is a mixture consisting of 60 to 70 wt% of capronic acid, 25 to 30 wt% of benzoic acid and 5 to 10 wt% of trimethylolpropane. Printing method of clothing using friendly printing binder. 5. The garment according to claim 3 or 4, wherein the printing patterns formed on the surface of the to-be-printed object are laminated in a thin film on the surface of the to-be-retained body to protrude integrally and firmly. Printing method.