Active dye dyeing process through fabric modification

A reactive dye and modification technology, applied in the field of reactive dye dyeing technology, can solve the problems of large difference in dyeing performance, difficult one-bath and one-step dyeing of linen and wool composite textiles, etc., to achieve shortened dyeing process and high feasibility , the effect of good color fastness

Inactive Publication Date: 2014-01-01
KUNSHAN WANFENG GARMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the large difference in the dyeing properties of the two, it is diffi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A kind of reactive dye dyeing process by fabric modification, comprises the steps:

[0016] (1) Flax modification: soak the flax fabric after being wetted and wrung out with warm water into the modifying liquid containing a certain concentration of cationic modifier and auxiliary agent, the concentration of the cationic modifier is 20g / L, the obtained The auxiliary agent is sodium hydroxide, its concentration is 28g / L, and the bath ratio is 1:10. After heating up to 80°C, the linen fabric is modified for 70 minutes. After modification, the fabric is taken out, washed twice with hot water, and washed twice with cold water. and then treated with 2 g / L glacial acetic acid solution for 2 min, and finally washed with water until neutral and dried;

[0017] (2) Dyeing: Accurately weigh the dye and auxiliaries. The dye is acid red A-2BF, and the dye solution is prepared with distilled water. In the dye solution: reactive dye 3g / L, sodium carbonate 20g / L, sodium chloride 60g / L,...

Embodiment 2

[0019] A kind of reactive dye dyeing process by fabric modification, comprises the steps:

[0020] (1) Flax modification: soak the flax fabric after being wetted and wrung out with warm water into the modifying liquid containing a certain concentration of cationic modifier and auxiliary agent, the concentration of the cationic modifier is 45g / L, the obtained The auxiliary agent is sodium hydroxide, its concentration is 28g / L, and the bath ratio is 1:10. After the temperature is raised to 60°C, the linen fabric is modified for 60 minutes. After modification, the fabric is taken out and washed twice with hot water and twice with cold water. and then treated with 2 g / L glacial acetic acid solution for 2 min, and finally washed with water until neutral and dried;

[0021] (2) Dyeing: Accurately weigh the dye and auxiliaries. The dye is acid black A-MP, and the dye solution is prepared with distilled water. In the dye solution: reactive dye 3g / L, sodium carbonate 20g / L, sodium chlo...

Embodiment 3

[0023] A kind of reactive dye dyeing process by fabric modification, comprises the steps:

[0024] (1) Flax modification: soak the flax fabric after being wetted and wrung out with warm water into the modifying liquid containing a certain concentration of cationic modifier and auxiliary agent, the concentration of the cationic modifier is 30g / L, the obtained The auxiliary agent is sodium hydroxide, its concentration is 28g / L, and the bath ratio is 1:10. After the temperature is raised to 70°C, the linen fabric is modified for 80 minutes. After modification, the fabric is taken out and washed twice with hot water and twice with cold water. and then treated with 2 g / L glacial acetic acid solution for 2 min, and finally washed with water until neutral and dried;

[0025] (2) Dyeing: Accurately weigh the dyes and auxiliaries. The dyes are acid green blue A-G, and the dye solution is prepared with distilled water. In the dye solution: reactive dye 3g / L, sodium carbonate 20g / L, sodi...

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Abstract

The invention relates to an active dye dyeing process through fabric modification. The process comprises the following steps: (1) flax modification, namely soaking a flax fabric in a modifying liquid with the bath ratio of 1:10; heating to the modifying temperature to modify the flax fabric for a certain time; after modification, taking out the fabric; firstly, washing the fabric by hot water twice and washing the fabric by cold water twice; then, treating the fabric for 2 minutes by a glacial acetic acid liquor; finally, fully washing the fabric by water till the fabric is neutral, and drying; (2) dyeing, namely after preparing a dyeing liquid, heating to 40 DEG C; wiping the modified flax fabric and casting the fabric into a dye bath to be dyed; heating the dye bath gradually to 90 DEG C, dyeing for 100 minutes with the bath ratio of 1:50; after dyeing, taking out the fabric; washing the fabric by hot water twice and washing the fabric by cold water twice; soaping; washing the fabric by a great amount of water and drying the fabric. The process provided by the invention has the beneficial effects that the dye-uptake of the modified flax fabric is improved, and the color fastness is good, so that the dyeing process flow can be shortened and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of textile dyeing and finishing, and in particular relates to a reactive dye dyeing process through fabric modification. Background technique [0002] Linen is a pure natural plant fiber, which has the characteristics of sweat absorption, good air permeability and harmlessness to the human body, while wool has the characteristics of soft touch, excellent elasticity and warmth retention. The textiles produced by blending or interweaving flax and wool can be made of flax and wool The best of both. However, due to the large difference in the dyeing properties of the two, it is difficult to realize the one-bath and one-step dyeing of flax and wool composite textiles. [0003] At present, the commonly used method is to dye the two fibers separately and carry out composite processing, or to use two baths and two steps for dyeing. If the flax in the composite textile can be cationic modified, the flax fiber can be...

Claims

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Application Information

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IPC IPC(8): D06P3/85D06P1/38D06P1/44D06P1/673D06P1/653
Inventor 姚建平
Owner KUNSHAN WANFENG GARMENT
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