Acidic dye-fixing agent and preparation method thereof

The technology of an acidic color-fixing agent and a catalyst is applied in the field of textile auxiliaries, which can solve the problems of complicated operation steps, and achieve the effects of simple preparation process, low cost and easy-to-obtain raw materials.

Inactive Publication Date: 2015-04-15
WUYI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The color fixing agent has strong acid resistance and good color fixing effect, but the preparation

Method used

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  • Acidic dye-fixing agent and preparation method thereof
  • Acidic dye-fixing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Add bisphenol S (0.01mol) and phenol sulfonate (0.01mol) into a 100ml three-neck flask equipped with a magnetic stirrer, condenser, and constant pressure dropping funnel, add 5ml of water, 1ml of ethanol and sodium hydroxide solution (10g / L) 0.8ml, start stirring and heat up to 70°C, add 0.03mol formaldehyde drop by drop with a constant pressure dropping funnel, gradually raise the temperature (10°C / 30min) to 100°C after the addition, keep warm for 2 hours, and the reaction is over After cooling down, take out the generated solution and filter, the filtrate is the acid color fixing agent sample A 1 .

Embodiment 2

[0017] Add bisphenol S (0.01mol) and phenol sulfonate (0.015mol) into a 100ml three-neck flask equipped with a magnetic stirrer, a condenser, and a constant pressure dropping funnel, and add 5ml of water, 1ml of ethanol and sodium hydroxide solution (50g / L) 1ml, start stirring and heat up to 70°C, add 0.0375mol formaldehyde drop by drop with a constant pressure dropping funnel, gradually raise the temperature (10°C / 30min) to 120°C after the addition, keep it warm for 2 hours, after the reaction is over Cool down, take out the generated liquid and filter, the filtrate is the acid color fixing agent sample A 2 .

Embodiment 3

[0019] Add bisphenol S (0.005mol) and phenol sulfonate (0.015mol) into a 100ml three-necked flask equipped with a magnetic stirrer, a condenser tube, and a constant pressure dropping funnel, add 5ml of water, 1ml of ethanol and sodium hydroxide solution (50g / L) 0.8ml, start stirring and heat up to 70°C, add 0.03mol formaldehyde drop by drop with a constant pressure dropping funnel, gradually raise the temperature (10°C / 30min) to 140°C after the addition, keep warm for 2 hours, and the reaction is over After cooling down, take out the generated solution and filter, the filtrate is the acid color fixing agent sample A 3 .

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Abstract

The invention relates to an acidic dye-fixing agent and a preparation method thereof. The dye-fixing agent is a condensation product prepared through the condensation polymerization reactions among bisphenol S, sodium phenolsulfonate, and formaldehyde in the presence of a catalyst. The obtained acidic dye-fixing agent has the advantages of good dye-fixing effect, simple preparation technology, easily-available raw materials, and low cost.

Description

technical field [0001] The invention relates to a textile auxiliary agent, in particular to an acid color fixing agent and a preparation method thereof. Background technique [0002] Nylon fabric has the characteristics of high strength and good wear resistance. It is mainly used to make sportswear, swimwear, bodybuilding clothes, socks, etc. In order to further improve the elasticity of nylon fabric, some spandex is often blended with nylon. Most of the dyeing of nylon and ammonia fabrics is dyed with acid dyes. 3 + It exists in the form of ions, which can form ionic bonds with acid dye anions, so that the dye can be fixed on the fiber. However, due to the small molecular weight of acid dyes, the molecules contain water-soluble groups such as carboxyl groups, sulfonic acid groups, etc., some of the dyes bound to the fibers in the aqueous solution will dissociate, resulting in the soaping fastness of the nylon ammonia fabric after dyeing. The grade is not high, therefore,...

Claims

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Application Information

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IPC IPC(8): C08G8/24D06P5/08
Inventor 贾永堂黄钢董凤春
Owner WUYI UNIV
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