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Crease-resistant finishing liquid for cotton fabric and application of crease-resistant finishing liquid

An anti-wrinkle finishing, cotton fabric technology, applied in fiber processing, plant fibers, textiles and papermaking, etc., can solve the problems of strong fabric damage, high price, etc., achieve no formaldehyde release, improve the degree of branching and branch chain length, The effect of good washing resistance

Active Publication Date: 2019-01-04
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although butane tetracarboxylic acid has solved the problem of releasing formaldehyde, because its finishing solution is too acidic, it will cause very large damage to the strength of the fabric during the high-temperature baking finishing process, and it is expensive and other limitations, so far it has not been used in the market. Marketing

Method used

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  • Crease-resistant finishing liquid for cotton fabric and application of crease-resistant finishing liquid
  • Crease-resistant finishing liquid for cotton fabric and application of crease-resistant finishing liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Preparation of finishing solution:

[0026] (1) Under the system of 0.8U / mL laccase / 1mg / mL TEMPO, cellulose nanocrystals were enzymatically modified at 50°C and pH 5 in acetate buffer for 15h, and then the weight ratio was 20 : 1 is reacted with Gerard reagent T to prepare modified cellulose nanocrystals;

[0027] (2) 14g butane tetracarboxylic acid and 0.2g chitosan are dissolved in 200ml concentration at normal temperature in the modified cellulose nanocrystal solution of 4mg / mL, then add 4g sodium hypophosphite and be mixed with finishing liquid, adjust The pH of the solution is 3.

[0028] The finishing solution includes: butane tetracarboxylic acid 70g / L, chitosan 1g / L, modified cellulose nanocrystal 4g / L, sodium hypophosphite 20g / L, and the balance is deionized water.

[0029] Anti-wrinkle finishing of cotton fabric: put 10g of cotton fabric in the above finishing solution, and use the finishing process of two dipping and two padding to treat the cotton fabric. ...

Embodiment 2

[0031] Preparation of finishing solution:

[0032] (1) Under the 1U / mL laccase / 2mg / mL TEMPO system, the cellulose nanocrystals were enzymatically modified in acetate buffer at 45°C and pH 5 for 10 hours, and then the weight ratio was 15: 1 react with Geraldt reagent T to prepare modified cellulose nanocrystals;

[0033] (2) 12g butane tetracarboxylic acid and 0.4g chitosan are dissolved in 200ml concentration at normal temperature in the modified cellulose nanocrystal solution of 3mg / mL, then add 3g sodium hypophosphite and be mixed with finishing liquid, adjust The pH of the solution is 3.

[0034] The finishing solution includes: butane tetracarboxylic acid 60g / L, chitosan 2g / L, modified cellulose nanocrystal 3g / L, sodium hypophosphite 15g / L, and the balance is deionized water.

[0035] Anti-wrinkle finishing of cotton fabric: put 10g of cotton fabric in the above finishing solution, and use the finishing process of two dipping and two padding to treat the cotton fabric. T...

Embodiment 3

[0037] Preparation of finishing solution:

[0038] (1) Under the system of 0.5U / mL laccase / 2.5mg / mL TEMPO, cellulose nanocrystals were enzymatically modified at 50°C and pH 4 in acetate buffer for 12h, and then the weight ratio was 20:1 reaction with Gerard reagent T to prepare modified cellulose nanocrystals;

[0039] (2) 14g butane tetracarboxylic acid and 0.6g chitosan are dissolved in 200ml concentration at normal temperature in the modified cellulose nanocrystal solution of 2mg / mL, then add 4g sodium hypophosphite and be mixed with finishing liquid, adjust The pH of the solution is 3.

[0040] The finishing liquid includes: butane tetracarboxylic acid 70g / L, chitosan 3g / L, modified cellulose nanocrystal 2g / L, sodium hypophosphite 20g / L, and the balance is deionized water.

[0041] Anti-wrinkle finishing of cotton fabric: put 10g of cotton fabric in the finishing solution, and use the finishing process of two dipping and two padding to treat the cotton fabric. The liquid...

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Abstract

The invention discloses crease-resistant finishing liquid for cotton fabric and application of the crease-resistant finishing liquid and belongs to textile finishing. The crease-resistant finishing liquid is characterized in that a laccase / TEMPO system is used to oxidize cellulose nanocrystals into aldehyde groups, the aldehyde groups and Girard's reagent T have Schiff base reaction to prepare positive ion modified cellulose nanocrystals, and the modified cellulose nanocrystals, 1,2,3,4-butanetetracarboxylic acid and chitosan are compounded to apply to the crease-resistant finishing of the cotton fabric. The crease-resistant finishing liquid has the advantages that the chitosan and the cellulose nanocrystals used by the finishing liquid are natural biomass materials and can copolymerize with BTCA on cotton fibers under high temperature to generate a long branched chain structure, and accordingly the cotton fabric after finishing has good crease resistance; in addition, by introducing the cellulose nanocrystals and the chitosan, the break strength retention and dyeing performance of the fabric after the crease-resistant finishing are improved, and the fabric is good in washing resistance stability and meets environment protection standards.

Description

technical field [0001] The invention belongs to the field of post-finishing of textiles, and in particular relates to an anti-wrinkle finishing solution for cotton fabrics and its application. Background technique [0002] Cotton fabrics are favored by people because of their soft feel and comfortable wearing. However, when they are subjected to external forces during wearing and washing, the orientation of the macromolecules or basic structural units on the cellulose increases, and after relative movement, they can be in the new fabric. New hydrogen bonds are formed at the positions. After the external force is removed, the unbroken hydrogen bonds between the cellulose molecules make the fibers tend to return to their original state, but the retardation of the hydrogen bonds formed at the new positions prevents the fibers from recovering immediately. If the cellulose fiber is stretched by an external force, the number of hydrogen bonds intermolecular breaks is large, and t...

Claims

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Application Information

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IPC IPC(8): D06M13/192D06M11/70D06M15/03D06M15/05D06M101/06
CPCD06M11/70D06M13/192D06M15/03D06M15/05D06M2101/06D06M2200/20
Inventor 王强刘亚男范雪荣余圆圆王平袁久刚
Owner JIANGNAN UNIV
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