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Method for carrying out surface treatment on wool fabric by using thiourea dioxide

A technology of thiourea dioxide and wool, applied in fiber processing, dyeing, animal fiber and other directions, can solve the problems of large internal damage of wool, toxic environment of chemical method, poor reproducibility, etc., to increase the added value of wool fabric products, improve the resistance pilling performance, improving the effect of comprehensive utilization development

Inactive Publication Date: 2021-07-02
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, most surface treatment techniques are effective, but there are some unavoidable disadvantages
For example, chemical methods are usually toxic or harmful to the environment; physical processing equipment requires high requirements and high costs, and is subject to many restrictions in use; biological enzymes have high costs, large internal damage to wool, and poor reproducibility, etc. insufficient

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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  • Method for carrying out surface treatment on wool fabric by using thiourea dioxide
  • Method for carrying out surface treatment on wool fabric by using thiourea dioxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Embodiment 1: Application of thiourea dioxide in anti-felting finishing of wool

[0059] (1) Finishing solution configuration: First, dissolve 30% o.w.f (to fabric weight) of thiourea dioxide in 0.1M carbonate buffer solution with pH 9.0, preheat in a water bath at 50°C for 10 minutes, and prepare the finishing solution;

[0060] (2) Treating the fabric: Then put the wool fabric in the finishing solution with a bath ratio of 1:50, treat it at 70°C for 2 hours, then wash it fully and dry it.

[0061] After finishing, the felting shrinkage rate of the wool fabric decreased from 24.69% to 3.26%, and the strength loss rate was 8.54%. Such as figure 1 , it can be seen from the SEM image of the scanning electron microscope that compared with the untreated wool, the scale layer on the surface of the wool fiber after finishing is obviously destroyed, the edges become blurred, and the surface becomes smoother, indicating that thiourea dioxide can peel off the wool scales.

Embodiment 2

[0062] Embodiment 2: A kind of method of anti-felting finishing of wool

[0063] (1) Finishing solution configuration: First, dissolve thiourea dioxide 5% o.w.f (to fabric weight) in 0.1M carbonate buffer solution with pH 9.0, preheat in a water bath at 40°C for 10 minutes, and prepare the finishing solution;

[0064] (2) Fabric treatment: Then put the wool fabric in the finishing solution with a liquor ratio of 1:30, treat it at 60°C for 1.5h, then wash it fully and dry it.

[0065] After finishing, the felting shrinkage rate of the wool fabric decreased from 26.44% to 7.92%, and the strength loss rate was 3.64%.

Embodiment 3

[0066] Embodiment 3: A kind of method of anti-felting finishing of wool

[0067] (1) Finishing solution configuration: First, dissolve 20% o.w.f (to fabric weight) of thiourea dioxide in 0.1M carbonate buffer solution with pH 9.0, preheat in a water bath at 50°C for 5 minutes, and prepare the finishing solution;

[0068] (2) Fabric treatment: Then put the woolen fabric in the finishing solution with a bath ratio of 1:30, and treat it at 80°C for 0.5h, then fully wash it with water, and dry it.

[0069] After finishing, the felting shrinkage rate of the wool fabric decreased from 24.54% to 5.71%, and the strength loss rate was 7.12%.

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 discloses a method for carrying out surface treatment on a wool fabric by using thiourea dioxide, and belongs to the technical field of wool fabric dyeing and finishing. According to the invention, the thiourea dioxide is adopted to treat wool, so that a scale layer on the surface of the wool is expanded and partially removed, the internal structure of the wool is not damaged, and the strength loss is small while the anti-felting, anti-pilling and low-temperature dyeing effects of the wool fabric are achieved. The method is simple to operate, safe, environment-friendly and high in universality, and plays an important role in improving the additional value and comprehensive utilization and development of wool fabric products.

Description

technical field [0001] The invention relates to a method for surface treatment of wool fabric by using thiourea dioxide, belonging to the technical field of wool fabric dyeing and finishing. . Background technique [0002] Wool is one of the earliest natural fibers used by people. Because of its softness, fluffiness, elasticity and good hygroscopicity, the textiles made of wool have the characteristics of warmth, comfort, and full hand feeling. It is a relatively high-end textile material. The reason why wool has the above-mentioned characteristics is mainly due to its special morphological structure, among which the most influential on the performance of wool is the unique scale layer structure on the surface of wool fiber. The cross section of wool is round or oval, mainly composed of scale layer, cortex layer and medulla layer, among which the scale layer is formed by the overlapping of keratinized flat cells, accounting for about 10% of the whole fiber, wool scale layer...

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): D06M13/432D06P3/14D06P3/16D06M101/12
CPCD06M13/432D06M2101/12D06M2200/35D06M2200/45D06P3/148D06P3/16
Inventor 王强张宁周曼余圆圆王平
Owner JIANGNAN UNIV