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Chlorination and anti-shrinking finishing process for woolen sweater

A technology for shrink-proof finishing and woolen sweaters, which is applied in fiber processing, textiles, papermaking, animal fibers, etc. It can solve the problems of unclear texture, size shrinkage, distortion and deformation, etc., and achieve the effect of good response depth and improved efficiency

Inactive Publication Date: 2013-07-17
太仓市隆丝达针织时装有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are also certain disadvantages. It makes ordinary wool products that have not been shrink-proof treated shrinkage, resulting in poor appearance of the product, shrinkage in size, unclear texture, distortion, thickened felt and other undesirable phenomena. The woolen sweater loses its original beauty and wearing performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 1. Shrinkage: Shrinkage is carried out according to the conventional process to meet the specified suede, thickness and size requirements;

[0019] 2. Chlorination: add 3% (to fiber weight) of Cl 2 , adjust the pH value=4.0-4.5 with formic acid, add Pingpingjia O 0.1wt%, at a temperature of 20°C-25°C, and treat for 30min under the condition of a bath ratio of 1:20, and remove the bath liquor;

[0020] 3. Dechlorination: add 4% (weight to fiber) sodium bisulfite, and treat for 20 minutes at a temperature of 25°C-30°C and a bath ratio of 1:20.

Embodiment 2

[0022] 1. Shrinkage: Shrinkage is carried out according to the conventional process to meet the specified suede, thickness and size requirements;

[0023] 2. Chlorination: Add 3% (to fiber weight) NaClO, adjust the pH value = 4.0-4.5 with formic acid, add Pingpingjia O 0.1wt%, at a temperature of 20°C-25°C and a bath ratio of 1:20 Treat for 30 minutes, remove the bath liquid;

[0024] 3. Dechlorination: add 4% (weight to fiber) sodium bisulfite, and treat for 20 minutes at a temperature of 25°C-30°C and a bath ratio of 1:20.

Embodiment 3

[0026] 1. Shrinkage: Shrinkage is carried out according to the conventional process to meet the specified suede, thickness and size requirements;

[0027] 2. Chlorination: Add 3% (to fiber weight) of DCCA, adjust the pH value = 4.0-4.5 with formic acid, add Pingpingjia O 0.1wt%, at a temperature of 20°C-25°C and a bath ratio of 1:20 Treat for 30 minutes, remove the bath liquid;

[0028] 3. Dechlorination: add 4% (weight to fiber) sodium bisulfite, and treat for 20 minutes at a temperature of 25°C-30°C and a bath ratio of 1:20.

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PUM

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Abstract

The invention discloses a chlorination and anti-shrinking finishing process for a woolen sweater. The chlorination and anti-shrinking finishing process comprises the following steps of: washing and shrinking according to a conventional process to meet the specified requirements on suede, thickness and size; adding a chlorinating agent accounting for 3wt%-4wt% of fibers; adjusting pH to be 4.0-4.5; adding 0.1wt%-0.5wt% of peregal O; processing the solution for 30-50 minutes at 20-25 DEG C and in the bath ratio of 1:(20-30) to remove bath foam; adding sodium hydrogen sulfite accounting for 4wt%-4.8wt% of fibers; and processing the solution for 20-30 minutes at 25-30 DEG C and in the bath ratio of 1:(20-30). Compared with a conventional chlorination and anti-shrinking finishing process for a woolen sweater, the process provided by the invention is capable of better controlling reaction depth, so that chemical reactions are mainly carried out on flake parts, and woolen cortical layers are damaged as less as possible.

Description

technical field [0001] The invention belongs to the technical field of textile dyeing and finishing, and relates to an anti-shrinkage finishing process for woolen sweaters, in particular to a chlorination anti-shrinkage finishing process for woolen sweaters. Background technique [0002] Wool is a textile fiber with a typical scale structure, and it is this special structure that gives it its distinctive fluffing properties. Under certain temperature and humidity conditions, wool fiber aggregates will gradually shrink in volume through repeated and continuous irregular external forces; woolen sweaters will shrink in area, increase in thickness, become denser in tissue, and increase in unit weight under the same conditions. , and the phenomenon of fine fluff and hidden tissue lines appearing on the surface. As a result of this milling, people can obtain woolen products with a rough appearance and a densely covered surface, which is beneficial to textile processing and produc...

Claims

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Application Information

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IPC IPC(8): D06M11/09D06M11/30D06M13/364D06M11/54D06M101/12
Inventor 顾玉珍
Owner 太仓市隆丝达针织时装有限责任公司