Acid reaction resistant chinlon fixer and application thereof

A color-fixing agent, reactive technology, applied in dyeing, textile and papermaking, etc., can solve the problems of defective products, color-fixing agent spots, acid insufficiency, etc., to prevent staining, improve wet fastness, working fluid stable effect

Active Publication Date: 2013-01-02
传化智联股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of nylon color fixing agent is treated by one-bath method, which has the advantages of less dosage, short time and simple operation. However, most of the nylon color fixing agent products on the market are not acid-resistan

Method used

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  • Acid reaction resistant chinlon fixer and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Add 100g of bisphenol A, 58g of phenolsulfonic acid, 42g of sulfonated bisphenol S, 260g of water, 0.5g of boric acid into a four-neck flask equipped with a condensing reflux tube, a thermometer, a dropping funnel and a stirrer, and slowly add 30% liquid Alkali 44g, it is warmed up to 90 ℃, slowly adds dropwise 55g of 37% formaldehyde aqueous solution, and the time of dropping is 0.5 hour, and dropwise is finished, continues to insulate reaction at 90 ℃ for 5 hours, cools down to 50 ℃ after reaction finishes, to Add 20g of epichlorohydrin dropwise to the reaction bottle, the dropping time is 0.5 hours, react at 50°C for 1 hour after dropping, then add 3g of urea to the reaction bottle, continue to react at 50°C for 0.5 hours, then add 60g Glacial acetic acid, stir well, and after cooling, a reactive nylon color-fixing agent with good acid resistance can be prepared. The color-fixing agent content is about 35%, and the pH value of the color-fixing agent (1% aqueous soluti...

Embodiment 2

[0024] Add 100g of phenol, 50g of sodium phenolsulfonate, 50g of naphtholsulfonic acid, 260g of water, 0.5g of boric acid, and slowly add 30% liquid caustic soda 44g, it was heated up to 90°C, and 55g of 37% formaldehyde aqueous solution was slowly added dropwise, and the dropwise addition time was 0.5 hours. Add 20g of epichlorohydrin dropwise to the bottle for 0.5 hours, and react at 50°C for 1 hour after dropping, then add 3g of melamine into the reaction bottle, continue to react at 50°C for 0.5 hours, then add 62g of formic acid , stir evenly, and after cooling, a reactive nylon color-fixing agent with good acid resistance can be prepared. The content of the color-fixing agent is about 35%, and the pH value of the color-fixing agent (1% aqueous solution) is 2.8.

Embodiment 3

[0026] Add 100g of bisphenol S, 38g of sodium naphthalenesulfonate, 62g of sulfonated bisphenol A, 260g of water, 0.5g of boric acid, and slowly add 30% Liquid caustic soda 44g, it is heated up to 90 ℃, slowly drips 55g of 37% formaldehyde aqueous solution, dropwise time is 0.5 hour, dropwise is completed, continues to insulate and react at 90 ℃ for 10 hours, after the reaction finishes, cool down to 50 ℃, Add 20g of epichlorohydrin dropwise to the reaction bottle for 0.5 hours. After the drop, react at 50°C for 1 hour, then add 3g of potassium persulfate to the reaction bottle, and continue the reaction at 50°C for 0.5 hours , add 30g of glacial acetic acid and 30g of formic acid, stir well, and after cooling, a reactive nylon color-fixing agent with good acid resistance can be prepared. The content of the color-fixing agent is about 35%, and the pH value of the color-fixing agent (1% aqueous solution) is 3.2 .

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Abstract

The invention discloses an acid reaction resistant chinlon fixer. Currently, most chinlon fixer products on the market are not resistant to acid; during a fixation treatment, when the fixer encounters strong acid or concentrated organic acid, a large sum of white precipitates will be produced; and fixer spot is easily generated in the fixation process, leading to generation of inferior-quality products or even waste products. The acid reaction resistant chinlon fixer provided by the invention is prepared by the following method comprising the following steps: subjecting a phenolic compound and two aromatic sulfonic acid compounds to a condensation reaction with formaldehyde in the presence of a complex catalyst; and then adding epichlorohydrin and a modifier to the above reaction system for modification; and finally, adjusting pH value of the modified multielement copolymer aromatic sulfonic acid formaldehyde condensation substance to 2-4 with strong acid or concentrated acid, so as to obtain the acid reaction resistant chinlon fixer. The acid reaction resistant chinlon fixer provided by the invention has acid resistance obviously better than that of a general commercial chinlon fixer, and solves the problem of hard fixation and poor washing fastness of chinlon fabric dyed by acid dyeing.

Description

technical field [0001] The invention relates to a color-fixing agent for nylon blended fabrics, in particular to an acid-resistant reactive nylon color-fixing agent and its application. Background technique [0002] Nylon fabric is favored by people due to its unique wearing performance, and has been widely used recently. With the development of social economy and the improvement of living standards, people pay more attention to ecological and environmental protection issues, and put forward higher requirements for the color fastness of dyed fabrics, especially the color fastness of export textile products. In the dyeing process of nylon fabrics, acid dyes are used for dyeing in most cases. Since acid dyes are anionic dyes with small molecular weight and good water solubility, some dyes bonded to fibers in aqueous solution will dissociate, resulting in nylon after dyeing. The washing fastness, dry and wet rubbing fastness, and perspiration fastness of the fabric are poor, a...

Claims

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Application Information

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IPC IPC(8): C08G16/04C08G8/28D06P5/08D06P3/82
Inventor 张红燕吴彬王胜鹏金鲜花陈丽王利萍
Owner 传化智联股份有限公司
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