KR101862052B1 - Method of the sublimation transfer printing at a flocked fabric with polyester - Google Patents

Abstract

The present invention relates to a sublimation transfer printing method in which a polyester capable of being printed in a short time using a hot press after closely adhering one side of a subbing transfer sheet and a side of a subbing transfer fabric, In order to accomplish the object, the sublimation transfer printing method of the present invention is a method of producing a base sheet from an acrylic resin to which a citric acid plasticizer is added, and applying static electricity to the base sheet to form a polyester semi- Preparing a sublimation transfer sheet for preparing a sublimation transfer sheet by printing a pattern with a hydrophobic disperse dye including a UV blocking agent and a zeolite as an antibacterial nanomaterial; and a sublimation transfer sheet preparation step of preparing the sublimation transfer sheet, The one side of the transfer paper is closely contacted and heat-pressed, Wherein the printing step is carried out at 160 to 220 DEG C for 6 to 8 seconds.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a sublimation transfer printing method,

The present invention relates to a method for sublimation transfer printing of a polyester fabric, and more particularly, to a method for sublimation transfer printing of a polyester fabric using a thermal press, To a method for sublimation transfer printing of a fabric to which a polyester capable of being knitted.

In general, a label is a piece of cloth or leather attached to a product by printing a trademark or a product name or a specific symbol or letter of each product in a product such as a clothes, a bag, a shoe and an accessory, Can be obtained.

Unlike printing on the surface of flat products, it is important to prevent labels from being damaged, such as color bleeding on the surface of the fabric, cleansing by washing, discoloration of dyes, and dropouts of dyes in order to realize a three- Do.

On the other hand, flocking is a method of expressing a pattern by finely embedding a fine fiber pile yarn into a desired material such as a fiber, a lean leather, or a synthetic leather. The flocking is classified into two types according to the working method, So it has the effect of increasing the value of the product by giving soft touch like velvet.

As a technique related to a method for printing a fabric for hooking, Japanese Patent Laid-Open No. 1410287 discloses a method of printing a dye on a paper in a predetermined form, applying an adhesive to the paper, attaching a bristle to the paper, Applying a glue to the fabric, adhering the glue-attached paper to the fabric, heating and pressing the paper in a thermal press, removing the paper from the fabric, and drying the fabric A method of printing with a hooking cloth was proposed.

However, in the prior art, since a certain shape is printed on paper by using a silk screen method, it is necessary to provide a silk screen plate according to a certain shape, and a transfer paper should be prepared by applying an adhesive to paper and attaching brushed, So that the overall process for printing the fabric is somewhat complicated and cumbersome.

In addition, in the prior art, since the fabric is printed for a relatively long period of time of 10 to 25 seconds, the dye penetrated into the fabric is actively actuated by heat, and when the heat treatment is carried out to the surface, a thermomigration occurs, There was a problem.

Therefore, it is necessary to develop a printing method which can simplify the process and print the furring fabric in a shorter time, thereby preventing sublimation phenomenon during the heat treatment and improving the fastness of dyeing of the furring fabric.

Korean Patent Laid-Open Publication No. 2008-0097063 (November 04, 2008) Korean Patent Registration No. 1410287 (June 16, 2014)

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems described above. It is an object of the present invention to simplify the process and to print the fabric in a shorter time, The present invention provides a sublimation transfer printing method of a fabric in which a polyester is coated with a polyester which can prevent thermomigration and improve the color fastness of the fabric.

Meanwhile, the object of the present invention is not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood from the following description.

In order to accomplish the above object, the sublimation transfer printing method of the present invention is a method of producing a base sheet from an acrylic resin to which a citric acid plasticizer is added, and applying static electricity to the base sheet, Preparing a sublimated transfer sheet by printing a pattern with a hydrophobic disperse dye containing an ultraviolet screening agent and a zeolite as an antibacterial nanomaterial to prepare a sublimation transfer sheet; And a printing step in which the one side of the sublimation transfer paper is closely contacted and the hot-pressing process is performed to print the above-mentioned hooking fabric, wherein the printing step is performed at 160 to 220 ° C for 6 to 8 seconds.

According to the solution of the above-mentioned problem, in the sublimation transfer printing method of the post-fabrics in which the polyester of the present invention is formed by the method of the present invention, the fabric and the sublimation transfer paper are prepared, , The process can be simplified.

In addition, the sublimation transfer printing method of the inventive polyester fabric has the following advantages. That is, the sublimation transfer printing method of the present invention is characterized in that the fabric is printed for a time of 6 to 8 seconds, And the fastness of the fastening fabric can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a flow chart illustrating a sublimation transfer printing method of a polyester fabric according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Brief Description of Drawings FIG. 1 is a block diagram of a computer system according to an embodiment of the present invention; FIG. 2 is a block diagram of a computer system according to an embodiment of the present invention; FIG.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a flow chart illustrating a sublimation transfer printing method of a polyester fabric according to the present invention.

Referring to FIG. 1, the sublimation transfer printing method of the present invention includes a fabric preparation step (S100), a sublimation transfer preparation step (S200), and a printing step (S300).

First, in the fabric preparation step (S100), a base sheet is made of acrylic resin, and a static microfluid is applied to the base sheet to prepare a polyester micro-microfiber cloth to prepare a hoofing fabric. The base sheet is manufactured by molding and heat-treating a liquid acrylic resin by a casting method, which is a method of pouring the liquid acrylic resin into a mold and hardening the mold.

At this time, polyvinyl chloride which is mainly used in thermoplastic plastic which is easy to be formed by casting method is excellent in some physical properties such as abrasion resistance but is weak against external impact, heat and ultraviolet rays, There are disadvantages to me and the human body. The phthalate plasticizer, which is a plasticizer mainly added to improve the processability of polyvinyl chloride, is harmful to the human body such as hindering the normal function of the endocrine system of the human body.

On the other hand, in the present invention, an environmentally friendly acrylic resin is used because it is more resistant to external impact, heat and ultraviolet rays than polyvinyl chloride and has a small amount of harmful substances that escape from the use process. However, It is preferable to add a citric acid plasticizer which is an environmentally friendly plasticizer.

The citric acid-based plasticizer is a natural vegetable plasticizer extracted from sugar cane and has excellent flexibility and low viscosity characteristics. These characteristics prevent the base sheet from being cut when the base sheet is separated from the mold, Thereby preventing the generation of acrylic resin remaining on the mold frame.

That is, by adding a citric acid plasticizer which is an environmentally friendly plasticizer using an acrylic resin which is less toxic than polyvinyl chloride and escapes into the air during use, it is more harmless to the human body and has an advantage of being environmentally friendly.

In addition, the polyester semi-microfiber having a length of 0.1 to 0.3 mm is placed in an upright position on the lower side of the base sheet, the static electricity generated by utilizing the high frequency passes through one side of the base sheet, To prepare the hoofing fabric.

Next, referring to the sublimation transfer sheet preparing step (S200), a sublimation transfer sheet is prepared by printing a pattern with a disperse dye containing an ultraviolet screening agent.

At this time, a printing method including offset printing, which is one of flat printing, gravure printing using a concave portion of a printing plate for printing, and digital printing processing all the steps from design to output, The pattern can be printed using any one of the printing methods.

In addition, since the polyester semi-microspheres in the fabric preparation step (S100) have a hydrophobic property, it is preferable to print the pattern with a disperse dye having small molecular size, hydrophobic property and non-ionic property. This will be described in detail in the printing step (S300) to be described later.

Furthermore, disperse dyes include not only UV blocking agents but also antibacterial nanomaterials, and zeolites are used as antibacterial nanomaterials.

Zeolite is a crystalline alumina silicate ((Si, Al) O4), which has a single-size microvoid and exhibits excellent adsorption to hydrophilic, polar molecules. Zeolites have the function of adsorbing cations through ion exchange, the function of substitution, and releasing polymeric polymers into small molecules through far-infrared radiation. That is, zeolite has not only high ion exchange ability, deodorizing power, but also antibacterial activity.

At this time, if the ion having excellent antibacterial activity is combined by utilizing the high ion exchangeability of zeolite, the zeolite can be given more antibacterial property.

Among the ions with the highest antimicrobial activity, silver (Ag), copper (Cu) and zinc (Zn) are the most commonly used ions in the order of excellent antimicrobial activity. When the antimicrobial activity is very high, it can effectively inhibit bacteria and bacteria It is harmful to human body.

 Therefore, it is preferable to use zinc zeolite which is harmless to the human body by binding zinc, which is somewhat lower in antibacterial activity than silver, to zeolite. Such zinc zeolites can be imparted antimicrobial properties to disperse dyes in powder form or in liquid form.

In addition, various additives such as an adjusting agent, a stabilizer, a defoaming agent, and an antiseptic agent, which can further improve the physical or chemical function of fabrics, including not only improving the light resistance and antimicrobial properties of fabrics including ultraviolet screening agents and antibacterial nanomaterials, Of course.

Lastly, in the printing step S300, one side of the sublimation transfer paper on which the fabric and the pattern are printed is closely contacted, and the pressing fabric is printed by hot pressing.

Specifically, the printing step (S300) is performed at 160 to 220 ° C for 6 to 8 seconds so that the disperse dye of the sublimation transfer paper is infiltrated and dyed into the inside of the fabric to be dyed.

At this time, since the pattern is printed with the hydrophobic disperse dye on the hooking fabric planted with the hydrophobic polyester semi-microfiber, the pattern can be printed more clearly for a time of 6 to 8 seconds, which is shorter than 10 to 25 seconds of the prior art , It is possible to prevent the occurrence of the sublimation phenomenon (thermomigration) during the heat treatment in which the dye penetrated into the fabric is actively actuated by heat and transferred to the surface.

In addition, since the sublimation of the disperse dye occurs inactive when heat-pressed at a temperature of less than 160 캜, it is difficult for the disperse dye to sufficiently penetrate into the inside of the fabric and to stain the pattern clearly on the fabric . When the hot press process is performed at a temperature exceeding 220 캜, the foaming fabric can be shrunk, and the disperse dye penetrated into the fabric is actively actuated by the heat, and the heat treatment, which is transferred to the surface, causes a thermomigration, Is lowered.

In addition, since the sublimation of the disperse dye occurs inactive when heat-pressed for less than 6 seconds, it is difficult for the disperse dye to sufficiently penetrate into the inside of the fabric, and the pattern is difficult to be stained clearly on the fabric . When the hot pressing process is performed for more than 8 seconds, the fabric can be shrunk and thermomigration may occur during the heat treatment, resulting in a problem that the fastness to dyeing is lowered.

The printed fabrics according to the present invention are fabricated with polyester semi-microfine yarns having excellent mechanical strength and elasticity, and disperse dyes excellent in affinity with polyester semi-microfine yarns are used, so that even if the shape is deformed due to external impact, There is an advantage.

In addition, according to the present invention, it is preferable that the printed fabric is cut according to a pattern and used as a label indicating a logo of clothes, shoes, automobiles, and the like.

The foregoing has outlined rather broadly the features and technical advantages of the present invention in order that the claims of the invention to be described below may be better understood. It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the appended claims and their equivalents should be construed as being included within the scope of the present invention.

Claims (4)

Preparing a base sheet with an acrylic resin to which a citric acid plasticizer is added, applying a static electricity to the base sheet to prepare a polyester semi-microfiber, and preparing a fabric for hooking;
Preparing a sublimation transfer sheet for preparing a sublimation transfer sheet by printing a pattern with a hydrophobic disperse dye containing an ultraviolet light blocking agent and an antibacterial nanomaterial zeolite; And
And a printing step of pressing one side of the sublimation transfer paper on which the pattern is printed and the pattern of the sublimation,
The printing step
Characterized in that the polyester is applied at 160 to 220 DEG C for 6 to 8 seconds.
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