Method for modifying and promoting dyeing property of protein fiber product through two-step process

A protein fiber and dyeing performance technology, which is applied in dyeing methods, fiber treatment, animal fibers, etc., can solve the problems of easy hydrolysis of chemical modifiers and low efficiency of protein fibers, and achieve improved dyeing performance, high dyeing depth and dyeing Strong fastness and specificity

Active Publication Date: 2018-11-27
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of this method is that under alkaline conditions, the chemical modifier itself is prone to hydrolysis, making the efficiency of protein fiber modification low.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Carry out wool fabric modification and cationic dye dyeing with the method mentioned in the present invention;

[0027] (1) Grafting glucose on wool fabric: treating wool fabric and glucose in the same bath, and grafting glucose on wool by Schiff base reaction;

[0028] Treatment process prescription and conditions: glucose 3g / L, temperature 85°C, pH 10, treatment time 2 hours;

[0029] (2) Glucose phosphorylation catalyzed by hexokinase: the wool fabric treated in step (1) was washed with water at 30°C, and then treated with hexokinase and adenosine triphosphate;

[0030] Treatment process prescription and conditions: hexokinase 10U / mL, adenosine triphosphate 2g / L, cyclic adenosine monophosphate 1g / L, treatment temperature 30°C, pH 7.0, time 4 hours;

[0031] (3) Dyeing with cationic dyes: after the fabric treated in step (2) is washed with water at 30°C, it is dyed with cationic red X-GR;

[0032] Dyeing process prescription and conditions: cationic red X-GR 0.5g / L,...

Embodiment 2

[0039] Carrying out mulberry silk as raw material cationic dye dyeing of real silk fabrics with the method mentioned in the present invention;

[0040] (1) Grafting maltose on silk fabric: treating silk fabric and maltose in the same bath, and grafting maltose on silk by Schiff base reaction;

[0041] Treatment process prescription and conditions: maltose 2g / L, temperature 90°C, pH 10, treatment time 1.5 hours;

[0042] (2) Hexokinase catalyzes maltose phosphorylation: the silk fabric treated in step (1) is washed with water at 30° C., and then treated with hexokinase and adenosine triphosphate;

[0043] Treatment process prescription and conditions: hexokinase 12.5U / mL, adenosine triphosphate 2.5g / L, cyclic adenosine monophosphate 0.5g / L, treatment temperature 35°C, pH 7.5, time 6 hours;

[0044] (3) Dyeing with cationic dyes: after the fabric treated in step (2) is washed with water at 30°C, it is dyed with cationic red X-GR;

[0045] Dyeing process prescription and condit...

Embodiment 3

[0052] Carry out cashmere fabric modification and cationic dye dyeing with the method described in the present invention;

[0053] (1) Grafting galactose to cashmere fabric: The cashmere fabric is treated with galactose in the same bath, and the galactose is grafted on the wool by Schiff base reaction;

[0054] Treatment process prescription and conditions: galactose 1g / L, temperature 80℃, pH 9, treatment time 0.5 hours;

[0055] (2) Hexokinase-catalyzed galactose phosphorylation: the cashmere fabric treated in step (1) was washed with water at 30°C, and then treated with hexokinase and adenosine triphosphate;

[0056] Treatment process prescription and conditions: hexokinase 1U / mL, adenosine triphosphate 0.5g / L, treatment temperature 20°C, pH 6.0, time 2 hours;

[0057] Cationic dye dyeing, water washing and post-drying treatments were the same as in Example 1.

[0058] Sample 7: processed by steps (3) and (4), but not processed by steps (1) and (2);

[0059] Sample 8: pro...

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Abstract

The invention discloses a method for modifying and promoting a dyeing property of a protein fiber product through a two-step process. Reduced hexaose is grafted onto a protein fiber through schiff base reaction, and then hexokinase is utilized to catalyze hexaose phosphorylation, so that the attachment of cationic dyes to the protein fiber dyeing can be boosted and the dyeing property of the protein fiber products is promoted. The method comprises the following steps: (1) grafting hexaose to the protein fiber: performing one-bath treatment on the protein fiber product and hexaose and graftinghexaose to the protein fiber through schiff base reaction; (2) catalyzing hexaose phosphorylation with hexokinase: washing the protein fiber product treated in the step (1) with water, and then treating hexokinase and triphosadenine. Compared with the cationic dyeing realized in the manner of adopting a chemical method for introducing electronegative groups onto the protein fiber, the method disclosed by the invention has the advantages that the hexaose is environment-friendly, the enzymic catalytic reaction efficiency is high and the dyeing property of the protein fiber product is obviously improved.

Description

technical field [0001] The invention relates to a method for improving the dyeing performance of protein fiber products through two-step modification, and belongs to the field of textile biotechnology. Background technique [0002] Protein fiber products include fiber products (knitted or woven fabrics, etc.) processed from wool and silk. The most commonly used dyes in dyeing are anionic dyes, including acid dyes, acid mordant dyes and neutral dyes. Among them, acid dyes have bright colors, complete chromatograms, and good level dyeing properties, and are widely used in protein fiber dyeing; however, due to the small molecular weight of acid dyes, the hydrogen bonds between dyes and fibers and the van der Waals force are weak, so in order to improve the dyeing depth , it is necessary to add acid to promote dyeing, so that the amino group on the fiber is ionized and then combined with the negatively charged group of the dye. Because the ionic bond between the acid dye and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/00D06P1/44D06P3/04D06M16/00D06M13/148D06M13/292D06M101/10
CPCD06M13/148D06M13/292D06M16/003D06M2101/10D06P1/00D06P1/445D06P3/04
Inventor 王平袁晶晶徐进袁久刚王强
Owner JIANGNAN UNIV
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