KR920000868B1 - Printing compostion for texitiles and printing method using the same - Google Patents

Abstract

A printing composition is composed of 90 wt. pt. of 15 % binder emulsion, 5 wt. pt. of pigment, crosslinking agents, detergents, latex and ammonia water. After the binder emulsion is mixed with crosslinking agent. detergent and latex homogeneously at room temperature, ammonia water is dded and then pigment is added. The binder emulsion is pref. acrylic emulsion, and pigment is TiO2. The detergent is melamine formaldehyde or urea melamine formaldehyde. The method for printing textile comprises (a) forming printing composition, (b) photomechanical processing, (c) printing textile by screen or roller, and (d) predrying at 100 deg.C for 30 min and drying at 115-125 deg.C for 25-30 min.

Description

Printing composition for printing on textiles and printing method using the same

The present invention relates to printing on textiles, and more particularly, to a printing composition for printing on textiles and a method of printing letters or figures on the surface of the textiles using the same. Here, the term textile refers to materials that make textile products such as clothes, bags, tents, shoes, etc., and includes not only textiles but also knitted fabrics, felts, and nonwoven fabrics. It is interpreted as. In general, the method of coloring textiles is the dyeing and dyeing by dipping the textiles in a solution of dyes and other preparations. Although there are prints printed on the surface, the present invention corresponds to a kind of prints, which relates to printing a blend containing a colorant, especially a pigment, on a textile surface by a screen or a roller. It is used to print letters, figures or trademarks on the surface of textile products such as bags, tents and shoes.

Here, "printing" means not only a method of stamping a compound containing a pigment or the like on the surface of a fabric by a conventional screen or roller as described above, but also a lock that attaches a pile or the like onto a fabric using high pressure static electricity. It is also interpreted as including "locking."

Conventional printing of texts and figures on textiles is performed by screen printing using a photo plate on a compound (hereinafter referred to as a "print composition") containing a pigment and a binder (binder) or the like. It carried out by applying to textiles by the roller printing method using the engraved copper roller. However, the fabrics printed in this way have a weak bonding force between the printed composition used and between the printed fabric and the printed mixture, resulting in cracks when the printed characters or figures are peeled off or pulled from the fabric by washing or friction during use. There was a problem.

Especially when the fabrics being printed are Oxford fabrics with smooth surfaces or water repellent or water repellent fabrics, the print composition adheres closely to the surface of these fabrics due to the nature of the fabric itself or the processing agent treated for water repellent or waterproofing. When the printed composition is printed on a stretchy knit fabric, the printed text or figure cannot be stretched to correspond to the stretchability of the knit fabric. It wasn't very good then.

Accordingly, it is an object of the present invention to provide a print formulation in which peeling, such as character drawing, does not occur after use after printing, and cracks do not occur at all due to elastic differences. It is another object of the present invention to provide a printing method on textiles, in which characters or figures do not peel off or crack from the textiles even after printing using the printing composition. The present inventors believe that the above peeling and cracking problems are also affected by the properties of the fabric being printed, but are also greatly influenced by the compositional components and composition ratios of the print compositions including pigments, and the process conditions during the printing process are also affected. With this in mind, we found print formulations and printing methods with surprisingly improved peel and crack problems.

The print composition according to the present invention comprises 90 parts of 15% binder emulsion, 5 parts of pigment and a part of a crosslinking agent, a towing agent, latex and ammonia water based on the total weight of the composition. The binder here is used as a binder and uses a commercially available acrylic emulsion. As the pigment, pigments capable of coloring titanium oxide (TiO ₂ ) or other fibers are used. As crosslinking agents, commercially available commercial crosslinking agents are used. Towing agents are used to enhance the washability and may be used with melamine formaldehyde or urea melamine formaldehyde. Latex is used for elasticity, and ammonia water is used to increase the adhesion of the print composition.

The printing method using the above-described print composition is uniformly mixed with a binder emulsion at room temperature in an appropriate ratio at a proper ratio, and then adjusted to a viscosity with ammonia water to make a pigment after killing the pigment. Preparing a print composition by adding; Printing on fabrics by screens or rollers using a printing composition prepared in the step of floating a photo plate on which a required character or figure is formed; And a drying step of pre-drying the printed fabrics at 100 ° C. for about 30 minutes, and then drying the printed fabrics at a temperature of 115-125 ° C. for 25-30 minutes. It includes.

Hereinafter, the present invention will be described in detail with reference to Examples.

은 일본 다이니찌 세이카제품의 교차 결합제를 나타내며, M-85는 한국(주) 대양에서 제조되는 멜라민 포름알데히드를 나타낸다. 또한 본 발명에 의해 인쇄된 제품의 세탁견로도 테스트는 JIS L 0844 A-2(50℃) 방법에 의해 행하여진 것이다.All parts in this example are by weight, AMARFIK-TK

Represents a cross-linking agent of Daiichi Seika, Japan, and M-85 represents melamine formaldehyde manufactured in the ocean of Korea. In addition, the test of the laundry dog of the product printed by this invention was performed by JIS L 0844 A-2 (50 degreeC) method.

Example 1

1g, 세탁견인제로서 M-854g 및 라텍스 10g을 차례대로 첨가하고 기계적교반기를 이용하여 균일하게 교반하였다. 교반된 액체에 25% 암모니아수 10g을 첨가하여 죽상태의 조성물을 얻었다.450 g of 15% acrylic emulsion was charged into a 2 ₁ vessel with a mechanical stirrer, and then AMARFIX-TK as a crosslinking agent.

1g, M-854g and 10g of latex were added in order as a towing agent and stirred uniformly using a mechanical stirrer. 10 g of 25% aqueous ammonia was added to the stirred liquid to obtain a composition of porridge.

After adding 25 g of TiO ₂ to the composition, the mixture was stirred uniformly to obtain 500 g of a white print composition.

Example 2

A yellow print composition was prepared in the same manner as in Example 1 except that a yellow pigment was used instead of a white pigment TiO ₂ .

Example 3

The white printed composition obtained in Example 1 was screen printed using a photographic plate having certain characters and figures on a nylon Taffeta 210T cloth of waterproof color Navy. The printed nylon taffeta was pre-dried at 100 ° C. for 30 minutes, then dried again at 115 ° C. for 25 minutes, and left at room temperature. The dew condensation on the nylon tarp fabric obtained in this way also showed 5th grade for washing and 5th grade for dry friction and 5-5 wet friction for friction.

Example 4

Screen printing and drying were carried out in the same manner as in Example 3 except that the yellow printing composition obtained in Example 2 was applied to the indigo red oxford fabric. The condensation on the fabric thus obtained showed grade 5 for washing, grade 4-5 for dry friction and grade 4-5 for wet friction.

Example 5

The white print formulation obtained in Example 1 was screen printed and dried in the same manner as in Example 3 except that 100% cotton was applied to a tricot knitted fabric. The tricot knitted fabric thus obtained was cut into 20 cm by 5 cm in size including printed letters and figures, grasped by both ends by hand, and pulled hard. As a result, no cracking of the printed characters and figures was observed. As a result of the condensation test, grade 5 for washing, grade 5 for dry friction and grade 4-5 for wet friction were found.

Example 6

The printed composition obtained in Example 2 was screen printed and dried in the same manner as in Example 3, except that the printed composition was applied to a T / C 65/35 fabric treated with silicon. The dew condensation test result was grade 5 for washing, grade 5 for dry friction and grade 4-5 for wet friction.

Example 7

Using the printed composition obtained in Example 1 as a locking adhesive, the pile was piled by locking the Oxford fabric at a high pressure of 100,000 volts, and the pile was planted. In all cases, wet friction showed grade 5.

As described above, according to the printing composition and the printing method according to the present invention, not only the printed characters or figures, etc. are not peeled off by washing or using after printing, but also no cracking occurs, and the beautiful color and appearance are always maintained with excellent hardness. It is sustainable.

Claims (3)

A printing composition comprising 90 parts of a 15% binder emulsion, 5 parts of a pigment and a part of a crosslinking agent, a towing agent, a latex and ammonia water based on the total weight of the composition. Preparing a printing composition by uniformly mixing the crosslinking agent, the towing agent and the latex in 90 parts of a 15% binder emulsion at room temperature, adjusting the viscosity by adding ammonia water, and then adding 5 parts of the pigment; A printing step of printing on a fabric by a screen or a roller using a printing composition prepared in the step of floating a photo plate on which a required character or figure is formed; And a drying step of pre-drying the printed fabric at 100 ° C. for about 30 minutes and then further drying at a temperature of 115-125 ° C. for 25-30 minutes. Printing method on fabrics comprising a. The method of claim 2, wherein the total amount of the crosslinking agent, the towing agent, the latex, and the ammonia water is 5 parts by weight based on the total weight of the printed composition.