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Discharge additive, printing paste and discharge printing method of polyester fabric

A polyester fabric, discharge dyeing printing technology, applied in the field of textile printing and dyeing, can solve the problems affecting the quality of fabrics, color shades, etc., to achieve the effect of easy printing, clear patterns, and simplified discharge printing process

Inactive Publication Date: 2019-12-06
GUANGZHOU SHENGQIN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method needs to control the uniformity and humidity of the padding, otherwise it will cause different shades of color, which will affect the quality of the fabric

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Discharge additive, printing paste and discharge printing method of polyester fabric
  • Discharge additive, printing paste and discharge printing method of polyester fabric
  • Discharge additive, printing paste and discharge printing method of polyester fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The discharge aid for polyester fabric of this embodiment includes the following components by weight percentage:

[0038] Component Weight percentage Deionized water50％ Phosphoric acid5％ Stannous chloride dihydrate25％ Naphtha5％ Guar Gum15％

[0039] The printing paste of the polyester fabric of this embodiment includes the following components by weight percentage:

[0040] Component Weight percentage Dye discharge aid of this embodiment 97%; P-type disperse dyes 3%;

Embodiment 2

[0042] This embodiment provides a discharge printing method for polyester fabric (polyester fabric is polyester / spandex weft knitted fabric), which includes the following steps:

[0043] (1) Dyeing of polyester fabric

[0044] Using heterocyclic azo disperse dyes, high-temperature dyeing of polyester fabrics, dyeing temperature 130 ℃, dyeing time 30 minutes.

[0045] (2) According to the formula of Example 1, the components are weighed and mixed to prepare a discharge aid. The viscosity of the discharge aid is 20,000 cps and the pH is 1-3.

[0046] (3) According to the formula of Example 1, a printing paste is obtained.

[0047] (4) Printing: matching printing screen made of 1350# and 800# mesh, 65H hardness scraper, flat screen printing after scraping, so that the printing paste forms a colored pattern on the surface of the polyester fabric .

[0048] (5) Steaming: Use a high-temperature continuous steaming machine to steam at 170 degrees Celsius for 8 minutes. Under high temperature ...

Embodiment 3

[0051] The discharge aid for polyester fabric of this embodiment includes the following components by weight percentage:

[0052] Component Weight percentage Deionized water73％ Phosphoric acid1％ Stannous chloride dihydrate15％ Naphtha1％ Guar Gum10％

[0053] The printing paste of the polyester fabric of this embodiment includes the following components by weight percentage:

[0054] Component Weight percentage Dye discharge aid of this embodiment 94%; P-type disperse dyes 6%;

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Abstract

The invention provides a discharge additive of a polyester fabric. The discharge additive is prepared from, by weight, 50-73% of deionized water, 1-5% of phosphoric acid, 15-25% of a reducing agent, 1-5% of an emulsifier and 10-15% of a thickening agent. A printing paste of the polyester fabric comprises 94-100% of the discharge additive and 0-6% of a P type disperse dye. The invention also provides a discharge printing method of the polyester fabric. The method comprises the following steps of (1) printing by the printing paste, wherein the printing paste is applied on the surface of the colored polyester fabric for printing to form a pattern with colors; (2) aging, wherein the reducing agent performs reduction on the original disperse dye applied on the surface of the polyester fabric; (3) removal of paste through washing. The process is simple, saves the energy and reduces the consumption. The discharge additive has good stability, therefore, the effect can be achieved that the polyester fabric is subjected to printing after high-temperature dyeing by using the printing paste with the discharge additive, and the energy and the time are saved. The polyester fabric obtained by printing after high-temperature dyeing has excellent fastness in various aspects, uniform discharge printing and soft and full hand feeling.

Description

Technical field [0001] The invention belongs to the field of textile printing and dyeing, and particularly relates to a discharge aid, printing paste and a discharge printing method for polyester fabrics. Background technique [0002] Polyester fiber (POLYESTER FIBERS), commonly known as "polyester". It is a synthetic fiber obtained by spinning polyester formed by polycondensation of organic dibasic acid and diol, referred to as PET fiber, which belongs to polymer compound. Invented in 1941, it is currently the largest variety of synthetic fibers. The biggest advantage of polyester fiber is that it has good wrinkle resistance and shape retention, and has high strength and elastic recovery. It is durable, wrinkle-resistant, non-ironing, and non-sticky. The dyeing of polyester fibers generally requires the use of disperse dyes. [0003] Disperse dyes have the following characteristics: [0004] (1) Disperse dyes are the most important and main category in the dye industry. They do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P5/15D06P3/54D06P1/18D06P1/673D06P1/651D06P1/48
CPCD06P1/18D06P1/48D06P1/6515D06P1/67316D06P1/67341D06P1/6735D06P3/54D06P5/155
Inventor 梅立斌
Owner GUANGZHOU SHENGQIN IND
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