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Finishing agent composition, finishing agent and its preparation method and application

A technology of composition and three-proof finishing agent, which is applied in the fields of plant fibers, fiber treatment, textiles and papermaking, etc. It can solve the problems that fabrics cannot maintain excellent decontamination performance, waterproof performance and high washability at the same time, and achieve excellent waterproofing Easy decontamination function, increased softness, and high economic efficiency

Active Publication Date: 2021-11-12
DONGGUAN DONGYANG SOLAR SCI RES & DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a high-efficiency washable, waterproof and easy-to-decontamination finishing agent composition, a finishing agent containing the composition and a preparation method thereof, and at the same time, the finishing agent is used in fabrics to prepare washable, waterproof and easy-to-decontamination fabrics to solve the problem of After the existing finishing agent treats the fabric, the fabric cannot maintain excellent decontamination performance, waterproof performance and washability at the same time, and the existing finishing agent requires a higher baking temperature.

Method used

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  • Finishing agent composition, finishing agent and its preparation method and application
  • Finishing agent composition, finishing agent and its preparation method and application
  • Finishing agent composition, finishing agent and its preparation method and application

Examples

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preparation example Construction

[0038]Existing finishing agents cannot have excellent waterproof performance and easy decontamination performance at the same time. Therefore, the first aspect of the present invention provides a blocked isocyanate to balance the contradiction between waterproof performance and decontamination performance in the finishing agent. The synthetic method of this blocked isocyanate comprises: first use hydrophilic modification agent and containing cycloaliphatic diisocyanate or containing aromatic diisocyanate to synthesize isocyanate prepolymer, then use blocking agent to carry out this isocyanate prepolymer Blocking to obtain the blocked isocyanate. In some embodiments of the present invention, the method for synthesizing an isocyanate prepolymer specifically includes: first dissolving the hydrophilic modifier with a solvent to obtain a solution 1 in which the mass fraction of the hydrophilic modifier is 15-25%, and then Under protective gas, according to the ratio of solution 1: ...

Synthetic example 1

[0062] (1) configure polyethylene glycol mass fraction respectively as 20% ethanol solution and methyl ethyl ketoxime mass fraction as 30% ethanol solution;

[0063] (2) Put 22.2g of isophorone diisocyanate into the there-necked bottle, start the agitator, and under the protection of nitrogen, slowly drip into the ethanol solution of 300g of polyethylene glycol through the dropping funnel while stirring. , stir and heat the oil bath to 40-50°C for 40 minutes; then raise the temperature to 70°C for 120 minutes to obtain a prepolymer, and control its free NCO mass fraction to about 8%;

[0064] (3) Put 20g of prepolymer and 20g of ethanol into the there-necked flask, start the agitator, slowly drop 11.6g of methyl ethyl ketoxime solution into it, react for 3 hours, remove the ethanol by distillation under reduced pressure, and obtain blocked isocyanate a.

Synthetic example 2

[0066] (1) configure polyethylene glycol mass fraction respectively as 20% ethanol solution and sodium bisulfite mass fraction as 30% aqueous solution;

[0067] (2) Put 22.2g of isophorone diisocyanate into the there-necked bottle, start the agitator, and under the protection of nitrogen, slowly drip into the ethanol solution of 300g of polyethylene glycol through the dropping funnel while stirring. , stir and heat the oil bath to 40-50°C for 40 minutes; then raise the temperature to 70°C for 120 minutes to obtain a prepolymer, and control its free NCO mass fraction to about 8%;

[0068] (3) Put 20 g of prepolymer and 20 g of ethanol into a three-necked flask, start the stirrer, slowly drop 16 g of sodium bisulfite aqueous solution into it, react for 3 hours, remove ethanol by distillation under reduced pressure, and obtain blocked isocyanate B.

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Abstract

The invention relates to the technical field of fabric functional finishing agents, and provides a finishing agent composition, a finishing agent and a preparation method and application thereof. In parts by mass, the finishing agent composition includes 40-60 parts of three-proof finishing agent, 20-40 parts of silicon-containing acrylate copolymer emulsion, 20-25 parts of tripropylene glycol, 2-5 parts of water-soluble silicone oil, 1-3 parts Hydroxymethylcellulose and 1-10 parts of blocked isocyanate. The blocked isocyanate plays an important role in balancing waterproof and easy decontamination functions. The method for preparing the finishing agent is: first dissolve hydroxymethylcellulose, and then add in sequence Water-soluble silicone oil and tripropylene glycol, stir at 50-55°C for 15-25 minutes, then add the three-proof finishing agent and silicon-containing acrylate copolymer emulsion, continue stirring for 5-20 minutes, then add blocked isocyanate and stir for 15-25 minutes. The finishing agent has good compoundability, and when the finishing agent is used in the fabric finishing process, the baking temperature required is low, which reduces the production cost, and the obtained fabric is washable, and has excellent waterproof and easy decontamination functions at the same time.

Description

technical field [0001] The invention relates to the technical field of fabric functional finishing agents, more specifically, to a high-efficiency washable, waterproof and easy-to-decontaminate finishing agent composition, a finishing agent containing the composition, and a preparation method and application of the finishing agent. Background technique [0002] Existing fabric functional finishing agents still have the following problems to be solved: one is that the existing easy-to-decontamination agents make the fabrics have a certain degree of hydrophilicity, so that there is a certain contradiction between waterproof finishing and easy-to-decontamination finishing, and one of them is satisfied. One condition must be sacrificed at the same time as another condition, so there are problems of poor water repellency, easy decontamination effect, and low grade, which makes it difficult to meet the needs of the high-end market; second, the existing technical solutions cannot ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/564D06M15/643D06M15/09D06M15/277D06M15/248D06M15/29D06M15/263C08F283/12C08F220/18D06M101/06
CPCC08F283/124D06M15/09D06M15/248D06M15/263D06M15/277D06M15/29D06M15/564D06M15/643D06M2101/06D06M2200/11D06M2200/12D06M2200/50C08F220/1804
Inventor 李义涛别文丰侯琴卿何鑫吴小云袁源
Owner DONGGUAN DONGYANG SOLAR SCI RES & DEV CO LTD
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