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A shrinkage-resistant finishing method for wool fabrics with low strength loss

An anti-shrinkage finishing and fabric technology, which is applied in animal fiber, fiber treatment, textiles and papermaking, etc., can solve the problems of strong fabric damage, etc., and achieve the effects of improved anti-felting performance, small application amount, and high elastic modulus

Active Publication Date: 2020-05-08
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Solve the problem of large damage to the fabric strength after finishing in the above-mentioned chlorinated anti-shrink processing

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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  • A shrinkage-resistant finishing method for wool fabrics with low strength loss
  • A shrinkage-resistant finishing method for wool fabrics with low strength loss

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A low-strength and anti-shrinkage finishing method for wool fabrics, comprising the following steps:

[0034] (1) Put the wool fabric in a solution (pH 4) of 3wt% dichloroisocyanurate (DCCA), 1g / L penetrant JFC, and a bath ratio of 1:25 at room temperature for 30min at a bath ratio of 1:25, Then the fabric was mixed with 6wt% sodium bisulfite (NaHSO) at a bath ratio of 1:25 3 ) solution at 40°C for 20 minutes, and finally put the wool fabric in NaHCO with a pH of 8-9 3 solution, neutralize at 40°C for 20min.

[0035] (2) The woolen fabric treated in step (1) is first soaked in 5g / L chitosan finishing solution (bath ratio 1:50) for 5min, washed with water, and then soaked in 1g / L cellulose nanocrystal solution (bath ratio 1:50) ) for 5 minutes, washed with water, and then repeated the process of immersing in chitosan finishing solution and cellulose nanocrystal solution in turn, repeating the self-assembly procedure 10 times in total, and drying at 100°C for 10 minutes...

Embodiment 2

[0039] A low-strength and anti-shrinkage finishing method for wool fabrics, comprising the following steps:

[0040] (1) Put the woolen fabric in a solution (pH 4) of 3wt% dichloroisocyanurate (DCCA), 1g / L penetrant JFC, and a bath ratio of 1:25 for 30 minutes at room temperature, and then place the fabric in 6wt% Sodium bisulfite (NaHSO3 ) solution (bath ratio 1:25) at 40°C for 20 minutes, and finally put the wool fabric in NaHCO with a pH of 8-9 3 solution, neutralize at 40°C for 20min.

[0041] (2) The woolen fabric treated in step (1) is first soaked in 5g / L chitosan finishing solution (bath ratio 1:50) for 5min, washed with water, and then soaked in 2g / L cellulose nanocrystal solution (bath ratio 1:50) ) for 5 minutes, washed with water, and then repeated the process of immersing in the chitosan finishing solution and the cellulose nanocrystal solution in turn, repeating the self-assembly procedure 1, 5, 10, 15, 20 times in total, and drying at 100°C for 10 minutes .

...

Embodiment 3

[0044] A low-strength and anti-shrinkage finishing method for wool fabrics, comprising the following steps:

[0045] (1) Put the woolen fabric in a solution (pH 4) of 3wt% dichloroisocyanurate (DCCA), 1g / L penetrant JFC, and a bath ratio of 1:25 for 30 minutes at room temperature, and then place the fabric in 6wt% Sodium bisulfite (NaHSO 3 ) solution (bath ratio 1:25) at 40°C for 20 minutes, and finally put the wool fabric in NaHCO with a pH of 8-9 3 solution, neutralize at 40°C for 20min.

[0046] (2) The woolen fabric treated in step (1) is soaked in 10g / L chitosan finishing solution (bath ratio 1:50) for 5min, washed with water, and soaked in 2g / L cellulose nanocrystal solution (bath ratio 1:50) The self-assembly procedure was repeated 10 times in total, and then dried at 100°C for 10 minutes.

[0047] The felt shrinkage and tensile breaking strength of the finished fabric were tested according to the washing standard of Wool Bureau TM31 wool textile products and the sta...

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Abstract

The invention discloses a low-strength-loss shrink-proof finishing method for a wool fabric and belongs to the technical field of wool fabric dyeing and finishing processing. According to the method,firstly, DCCA is adopted for conducting chlorination shrink-proof treatment on the wool fabric, then the wool fabric is soaked in a chitosan finishing solution and a cellulose nanocrystal solution insequence, assembly is conducted 10-20 times, the anti-felting performance of the treated wool fabric is obviously improved, in addition, the strength loss of the fabric is also greatly lowered, and the hand feeling of the wool fabric is good.

Description

technical field [0001] The invention relates to an anti-shrinkage finishing method for wool fabric with low strength loss, and belongs to the technical field of wool fabric dyeing and finishing. Background technique [0002] Wool is a kind of natural protein fiber. It is favored by consumers because of its softness, warmth, crispness and non-sticky properties. However, due to the special structure of wool itself, that is, there is a scale layer on the fiber surface, when the wool is rubbed, the friction resistance in the direction against the scales is greater than that in the direction along the scales, resulting in a directional friction effect; in addition, wool has excellent elasticity and curling properties , so that the woolen fabric will produce felting phenomenon due to external force during the washing process, which will affect the style and dimensional stability of the fabric, make the woolen fabric feel rough, and the wearing performance will be significantly red...

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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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/03D06M15/05D06M101/12
Inventor 王强刘亚男余圆圆袁久刚王平范雪荣
Owner JIANGNAN UNIV
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