Method for protease-method wool felt-proofing treatment by using ultrasonic technology

A technology of ultrasonic wave and protease, which is applied in ultrasonic/sonic fiber treatment, fiber treatment, biochemical fiber treatment, etc. It can solve the problems of long enzyme treatment time and large fiber damage, so as to improve the finishing effect, increase the degree of homogenization, and shorten the enzyme The effect of processing time

Inactive Publication Date: 2014-07-16
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using the present invention can improve the effect of biological enzyme anti-felting finishing of wool fibers/tops/fabrics, and solve the technical problems of long enzyme tr...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Sample species: wool fiber.

[0019] (1) Wool hydrogen peroxide oxidation pretreatment: immerse wool fiber in deionized water → hydrogen peroxide treatment (hydrogen peroxide (30%) 5mL / L, sodium pyrophosphate 1.25g / L, JFC1g / L, bath ratio 1:25, time 60min, temperature 50°C, pH8.5)→Wash well and dry at room temperature.

[0020] (2) Protease treatment under ultrasonic conditions: immerse the above-mentioned pretreated wool fibers in a protease solution containing a mass concentration of 2%, and wash them with ultrasonic water for 30 minutes at a temperature of 55°C, pH 8.5, and ultrasonic power of 300W. .

[0021] (3) Enzyme inactivation: after the treatment, raise the temperature of the enzyme solution to 80-90°C for 10 minutes to inactivate the protease;

[0022] (4) Washing with water: the fibers after deactivation are fully washed with hot water and cold water respectively.

[0023] After the above process, the weight reduction rate of the wool fiber is 2.2%, the w...

Embodiment 2

[0025] Sample species: wool strips.

[0026] (1) Wool hydrogen peroxide oxidation pretreatment: immerse wool strips in deionized water → hydrogen peroxide treatment (hydrogen peroxide (30%) 5mL / L, sodium pyrophosphate 1.25g / L, JFC1g / L, bath ratio 1:25, time 60min, temperature 50°C, pH8.5)→Wash well and dry at room temperature.

[0027] (2) Protease treatment under ultrasonic conditions: soak the above-mentioned pretreated wool strips in a protease solution containing a mass concentration of 2%, and wash them with ultrasonic water for 30 minutes at a temperature of 55°C, pH 8.5, and ultrasonic power of 300W. .

[0028] (3) Enzyme inactivation: after the treatment, raise the temperature of the enzyme solution to 80-90°C for 10 minutes to inactivate the protease;

[0029] (4) Water washing: the wool sliver after the enzyme has been deactivated is fully washed with hot water and cold water respectively.

[0030] After the above process, the weight reduction rate of the wool str...

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Abstract

The invention discloses a method for protease-method wool felt-proofing treatment by using an ultrasonic technology, belongs to the application technical filed of wool fabric dyeing and finishing in the wool manufacturing industry and aims at solving the problems that the treating time is long, the felt-proofing rate is high and the fiber damage is large in a single protease method so as to realize the effect of optimizing wool fiber/wool top/wool fabric biological enzyme-method felt-proofing finishing. The felt proofing can be performed on wool under an ultrasonic condition, the protease catalytic hydrolysis speed is increased, the shedding off of a wool scale layer is accelerated, the protease method treating time is shortened, and the degradation of the protease to the inferiors of fibers is reduced. The synergistic effect of ultrasonic waves and the protease can replace a conventional chlorination method or single protease method felt-proofing method, so that the felt-proofing performance of wool fabrics is improved.

Description

technical field [0001] The invention discloses a method for applying ultrasonic technology to anti-felting treatment of wool with protease, which belongs to the technical field of wool fabric dyeing and finishing in the wool textile industry. Background technique [0002] Wool has been used in the textile field for a long time. It can be traced back to the Neolithic Age. It is one of the earliest natural fibers used by humans. Because wool fibers are soft, fluffy and elastic, the fabrics made of wool are comfortable, warm, and full-feeling, and are common household and industrial textile materials. However, wool fabrics are prone to felting due to non-directional external forces during washing, resulting in poor softness and elasticity, and affected dimensional stability, which seriously affects wearing performance. Therefore, it is necessary to perform anti-felting finishing on wool fabrics. The methods of anti-felting finishing of wool fabrics mainly include decremental ...

Claims

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Application Information

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IPC IPC(8): D06M10/02D06M16/00D06M11/50D06M11/72D06M101/12
Inventor 范雪荣王强余圆圆王树根王平袁久刚
Owner JIANGNAN UNIV
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