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One-bath one-step process for dispersing/reactive dye of cotton-polyester blended fabric

A technology of reactive dyes and polyester-cotton blending, which is applied in the processing of textile materials, liquid/gas/steam textile material processing, dyeing methods, etc. It can solve the problems of low production efficiency, high technical risk, long production cycle, etc., and achieve cost Reduce, reduce the amount of pollutant discharge, reduce the effect of energy consumption

Inactive Publication Date: 2012-04-11
XIANGFAN NEW NO 45 PRINTING & DYEING
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to aim at the existing dyeing production technology using disperse / reactive dye pad dyeing two-bath two-step method for dyeing dark colors. In order to solve the disadvantages of large quantity and low production efficiency, a new process method for dyeing dark colors of polyester-cotton blended fabrics with disperse / reactive dyes in one bath and one-step method is simple, efficient, time-saving and labor-saving, easy to operate and quality control.

Method used

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  • One-bath one-step process for dispersing/reactive dye of cotton-polyester blended fabric
  • One-bath one-step process for dispersing/reactive dye of cotton-polyester blended fabric
  • One-bath one-step process for dispersing/reactive dye of cotton-polyester blended fabric

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Embodiment 1

[0022] Example 1: Take 14×14 T65 / C35 (93×55) polyester-cotton black yarn card cloth as an example; the specific process steps are as follows:

[0023] 1. Small sample dithering: through the laboratory sample dithering, select disperse dyes: disperse dark blue WF-XF (10.89g / L), disperse black WF-XF (65.6g / L), disperse yellow brown WF-XF (15.12g / L); reactive dyes: the color matching formula of five dyes, reactive black SNE (22.46g / L) and reactive yellow SHE (0.49g / L);

[0024] 2. Determine the amount of various additives in the fixing solution according to the concentration of reactive dyes; for example, the total amount of disperse / reactive dyes in this formula is 110g / L, then the amount of NaOH (28°Be') is controlled at 10-15g / L, NaCl (95%) consumption is controlled at 300-400g / L, anti-staining salt S (75%) is controlled at 5-10g / L, and the consumption of new polyester-cotton one-bath soaping agent EA-265 (industry) is 40-50g / L;

[0025] 3. Add the disperse / reactive dye ...

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Abstract

The invention relates to a one-bath one-step process for a dispersing / reactive dye of a cotton-polyester blended fabric. The one-bath one-step process mainly comprises the following steps performed on the cotton-polyester blended fabric: dispersing / reactive dye one-bath pad dyeing; infrared and hot-air drying in advance; high-temperature baking fixation; padding in a reactive dye fixation solution; steam fixation; water washing; soaping; water washing; drying; terylene dyeing; and obtaining finished cloth. The one-bath one-step process is characterized by fully padding an unstained cotton-polyester blended fabric in a dispersing / reactive dye one-bath solution, introducing infrared and hot air so as to dry 60-70% of water in the fabric in advance, baking at high temperature so as to dye and fix color for polyester fibers, fully padding in the reactive dye fixation solution, performing steam fixation so as to dye and fix color for cotton fibers, and performing the processes of water washing, soaping and water washing so as to fully develop color on the fabric and fully wash off the surface dyeing on the fabric, thereby finishing a dyeing process. The dry and wet grinding fastness can fully meet the customer demand.

Description

technical field [0001] The invention relates to a dyeing and finishing process for polyester-cotton blended fabrics to dye dark colors, in particular to a dyeing process for polyester-cotton blended fabrics with disperse / reactive dyes in one bath for one-bath one-step dyeing of dark colors. Background technique [0002] Polyester-cotton blended fabric series products are very common in the international and domestic markets. It has a wide range of applications and a large market share; its products have a wide range of chromatograms and a complete range. However, if polyester-cotton blended fabrics are dyed in dark colors, if disperse / vat dyes are used, the depth is difficult to achieve, the consumption of dyes is high, the amount of sewage is large, and the production cost is too high. Therefore, this combination of processes is generally not used; When using reactive dyes, there is a common problem of poor dry and wet fastness. Therefore, at present, many printing and dy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/872D06P5/02D06L1/16D06B3/18D06B9/00D06B15/00
Inventor 刘勇刘贤红石建峰
Owner XIANGFAN NEW NO 45 PRINTING & DYEING
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