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Formaldehydeless permanent press finishing agent for fabric and preparation method and application thereof

A non-iron finishing and fabric technology, applied in textiles and papermaking, fiber processing, plant fibers, etc., can solve the problems that cannot be popularized and applied, the anti-wrinkle effect is not as good as 2D resin, and the cost is low. , the effect of small strength loss

Active Publication Date: 2011-01-26
SICHUAN YIXIN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polycarboxylic acid formaldehyde-free non-iron finishing agents mainly include polymers of butane tetracarboxylic acid (BTCA), citric acid, maleic acid, acrylic acid, and maleic acid. Although this type of finishing agent is a formaldehyde-free anti-wrinkle agent, But the prominent problem is that the anti-wrinkle effect is poor, the strength loss is serious, and BTCA and its catalyst are expensive, and the rest of the polybasic acid not only has poor anti-wrinkle effect, but also has serious yellowing and large strength loss, so it has not been popularized for many years.
However, chitin and epoxy anti-wrinkle finishing agents have worse anti-wrinkle effects and cannot be used in large-scale production.
[0004] The anti-wrinkle effect of formaldehyde-free non-iron finishing agents currently on the market is always inferior to that of 2D resins. Synthesizing formaldehyde-free non-iron finishing agents that can replace 2D resins at low cost is the development direction of formaldehyde-free non-ironing finishing agents

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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  • Formaldehydeless permanent press finishing agent for fabric and preparation method and application thereof
  • Formaldehydeless permanent press finishing agent for fabric and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] A, preparation of initiator aqueous solution: 0.2g ammonium persulfate is added water 15g to make initiator aqueous solution;

[0092] B. Synthesis: Add acrylamide 27.5g, glyoxal 12.5g, deionized water 44.0g, phthalic dipotassium anhydride 0.3g and 98(V / V)% concentrated sulfuric acid 0.25g, feed nitrogen, heat up to 50-70°C for 3-5 hours, cool down to about 40°C after reaction, take out 40-60g, heat up to 60-80°C, add sodium bisulfite 0.3g, then add 5-8g of initiator aqueous solution to initiate, after initiation, drop the remaining reactant and initiator aqueous solution at 75-90°C, control the time of dropping within 1-2 hours, add 0.02g after dropping Chain terminator - p-hydroxyanisole, and react at 75-90°C for 1-5 hours to obtain the desired product, which can be used for non-ironing finishing of cellulose fibers to improve the elasticity of fabrics.

Embodiment 2

[0094] A, the preparation of initiator aqueous solution: 0.15g ammonium persulfate is added water 15g to make initiator aqueous solution;

[0095] B. Synthesis: Add acrylamide 21.3g, glyoxal 8.7g, deionized water 54.2g, phthalic anhydride 0.25g and 98(V / V) % concentrated sulfuric acid 0.20g, feed nitrogen, heat up to 50-70°C and react for 3-5 hours, cool down to about 40°C after reaction, take out 40-60g, heat up to 60-80°C, add sodium bisulfite 0.2g, then add 5-8g of initiator aqueous solution to initiate, after initiation, drop the remaining reactants and initiator aqueous solution at 75-90°C, control the drop time within 1-2 hours, add 0.01g after the dropwise addition Chain terminator-p-hydroxyanisole, react at 75-90°C for 1-5 hours, cool down to 40°C to obtain the desired product, which can be used for non-ironing finishing of cellulose fibers to improve the elasticity of fabrics.

Embodiment 3

[0097] A, the preparation of initiator aqueous solution: 0.5g potassium persulfate is added water 15g to make initiator aqueous solution;

[0098] B. Synthesis: Add acrylamide 33.8g, glyoxal 16.2g, deionized water 33.2g, acetic anhydride 0.4g and 98 (V / V)% respectively in a four-necked flask equipped with a stirrer, a thermometer and a condenser Concentrated sulfuric acid 0.35g, feed nitrogen, heat up to 50-70°C and react for 3-5 hours, cool down to about 40°C after reaction, take out 40-60g, heat up to 60-80°C, add 0.5g of sodium bisulfite, Then add 5-8g of initiator aqueous solution to initiate, after initiation, drop the remaining reactants and initiator aqueous solution at 75-90°C, control the drop time within 1-2 hours, add 0.02g chain terminator after the dropwise addition - Hydroquinone, react at 75-90°C for 1-5 hours, cool down to 40°C and add 25g of deionized water to obtain the desired product, which can be used as an auxiliary agent for acrylate resins to improve th...

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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Abstract

The invention discloses a novel formaldehydeless permanent press finishing agent for a fabric and a preparation method and application thereof. The formaldehydeless permanent press finishing agent for the fabric is prepared by performing a polymerization reaction on acrylamide, glyoxal, phthalic anhydride, sulfuric acid, potassium persulfate and the like. The product of the invention is mainly used for performing noniron finish on the fabric and improving the firmness of a dyed fabric and a printed fabric. Compared with the conventional N-methylol acrylamide resin, the permanent press finishing agent has prominent advantages of excluding of formaldehyde and crease resilience equivalent to or surpassing those of etherfied 2D (etherfied dimethylol dihydroxy ethylene urea) after being used for finishing a cotton fabric; and compared with the conventional formaldehydeless resin, the agent has the advantages of high crease resilience, strength loss less than that of a polycarboxylic formaldehydeless resin, cost lower than those of dimethylol dihydroxy ethylene urea (DMeDHEU) and butanetetracarboxylic acid (BTCA) and cost performance far higher than that of a polycarboxylic resin.

Description

field of invention [0001] The invention relates to a fabric non-ironing finishing agent and its preparation method and application, more particularly to a formaldehyde-free fabric non-ironing finishing agent and its preparation method and application. Background technique [0002] Cotton fabric is more and more favored by consumers because of its comfortable and breathable properties, but it is easy to wrinkle, which affects the appearance of wearing. In the anti-wrinkle finishing of cotton fabrics, formaldehyde-containing resins were used as anti-wrinkle finishing agents (also called non-ironing finishing agents) in the early days, and the most commonly used ones were 2D (dimethylol dihydroxyethylene urea) resin and hexamethylol melamine resin. Non-ironing finishing agents have the advantages of cheap price, easy-to-obtain raw materials, and good finishing effects. However, the fabrics finished with resins will decompose and release formaldehyde under the action of humidity...

Claims

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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Application Information

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IPC IPC(8): D06M15/285C08F222/38D06M15/263D06M101/06
Inventor 蒲宗耀陈松黄玉华蒲实吴晋川罗艳辉韩丽娟
Owner SICHUAN YIXIN TECH
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