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Finishing method for preventing felting and shrinking of wood fabric

An anti-felting and wool technology, applied in fiber treatment, biochemical fiber treatment, textiles and papermaking, etc., can solve the problems of increasing wool fiber damage, failing to achieve the purpose of anti-felting, cumbersome treatment process, etc., to protect wool The effect of internal structure, reducing forward and reverse friction effect, and simplifying the processing process

Inactive Publication Date: 2005-11-09
ENZYME ENG INST SHAANXI PROVINCE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: due to the acid and alkali resistance of wool fiber, the function of the enzyme is not only to degrade the scales, but also to degrade the inner layer of the fiber, so this process will cause greater damage to the wool, and the oxidant treatment is even more harmful. damage to wool fiber; in addition, lipase and protease in the invention adopt a step-by-step treatment process, which makes the treatment process cumbersome, complicated and has a long cycle; in this invention, the elaboration on the treatment effect only mentions "improving the anti-felting effect of wool fabrics". and anti-pilling function, achieved a certain effect", but did not explain whether it can meet the requirements of machine washability
[0006] To sum up, most of the existing wool modification methods still need to use chlorination method. The environmental pollution caused by the chloride and the potential harm to the human body caused by the organic chlorine compound residues in the wool have caused its application to be restricted. limit
However, the pure protease wool modification treatment technology cannot achieve the ideal anti-felting purpose.

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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  • Finishing method for preventing felting and shrinking of wood fabric
  • Finishing method for preventing felting and shrinking of wood fabric
  • Finishing method for preventing felting and shrinking of wood fabric

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018] Example 1: All wool yarn Specification: 66 s Australian wool, spun into 52 counts / 2 ply yarns.

[0019] Put 20kg of the pre-washed woolen yarn in a washing machine with 240 liters of chitosan aqueous solution (containing 0.96kg of chitosan). Carry out enzymolysis treatment in the enzyme solution of the washing machine for 50 minutes, the enzyme solution contains 1.2kg neutral protease and 0.6kg neutral lipase, the temperature is 55°C, the bath ratio is 11:1, and intermittent stirring; after the treatment, the wool yarn is taken out and used Rinse in hot water at 90°C for 15 minutes; finally use 0.5kg of softener for softening treatment, and weave after dehydration. The test results are shown in Table 1.

[0020] Table 1

[0021]

example 2

[0022] Example 2: All wool wool yarn Specification: 60 s National wool tops, spun into 26 counts / 2 strands of yarn.

[0023] Put 20kg of the pre-washed woolen yarn in the washing machine, which contains 200 liters of chitosan aqueous solution (containing 0.6kg chitosan), stir and infiltrate intermittently at 50°C for 20 minutes; take it out and wash it once; then put the woolen yarn into the washing machine Enzyme hydrolysis in the enzymatic solution for 60 minutes, the enzyme solution contains 1.0kg neutral protease and 0.5kg neutral lipase, the temperature is 45°C, the bath ratio is 10:1, stirring intermittently; the wool yarn after enzymolysis is heated by an 85°C hot water machine Wash for 15 minutes with a bath ratio of 8:1; finally use 0.4kg of softener for softening treatment, and weave after dehydration. The test results are shown in Table 2.

[0024] Table 2

[0025]

example 3

[0026] Example 3: Wool and acrylic blended yarn specifications: the wool / acrylic ratio is 7 / 3, and it is spun into 36 / 2 strands of yarn.

[0027] Put 20kg of the pre-washed woolen yarn in the washing machine, which contains 160 liters of chitosan aqueous solution (containing 0.4kg chitosan), stir and infiltrate intermittently at 42°C for 20 minutes; take it out and wash it once; then put the woolen yarn into the washing machine Enzyme hydrolysis in the enzyme solution for 40min, the enzyme solution contains 0.6kg neutral protease and 0.4kg neutral lipase, the temperature is 50 ℃, bath ratio 10:1, stirring intermittently; Wash for 20 minutes with a bath ratio of 9:1; finally use 0.3kg of softener for softening treatment, and weave after dehydration. The test results are shown in Table 3.

[0028] table 3

[0029]

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 is a wool anti-felting finishing method, and its character: the preprocessing adopts chitosan water solution for soaking and adopts neutral proteinase and neutral fatty to make enzyme degradation treatment, thus making the felting ratio of the processed wool fabric less than 3%, and strong damage within 5% and raising balling resistance of wool fiber by 2-3 grades, and also the whiteness, able to completely meet the machine washing requirement. The invention simplifies the processing course and shortens the process flow and has a shorter cycle so as to strengthen the feasibility in industrialized operation and has no residual harmful matters and can not cause environmental pollution.

Description

technical field [0001] The invention belongs to the improvement of an anti-felting finishing method for wool and wool fiber, in particular to the anti-felting finishing technology for wool and its textiles by using biological enzymes. Background technique [0002] As we all know, wool fabrics will gradually experience felting and pilling when they are worn or washed, that is, the wool fibers lose their elasticity and curl, which makes the fabric shrink and affects the appearance and wearability of the fabric. Therefore, wool fabrics need to be chemically dry-cleaned, or lightly washed with extreme care, and cannot be "machine washed", which makes washing wool fabrics extremely inconvenient. The research on wool anti-felting has been going on for a long time, and a variety of anti-felting finishing technologies have been developed. In summary, there are two main categories: one is chemical method, and the other is the combination of chemical and biological technology. [000...

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): D06M16/00
Inventor 徐升运赵文娟马齐邢建伟
Owner ENZYME ENG INST SHAANXI PROVINCE ACAD OF SCI
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