Dyeing method for starch cation modified cotton fabric

A dyeing method, cationic technology, applied in the treatment field, to achieve the effects of uniform modification, improved affinity, and improved production efficiency

Inactive Publication Date: 2016-08-17
SHAOXING UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the requirement of treating agent before reactive dyeing of existing cotton knitted fabric without salt dyeing, the purpose of the present invention is to provide a method for modifying cotton knitted fabric with quaternary ammonium cationic starch, which is a reactive dye-free method for cotton knitted fabric. Preparing for Salt Dyeing

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The dyeing method used in this embodiment for cotton fabric is formed by the combination of fabric cationic treatment formula, cationic treatment parameters, dyeing process flow and dyeing process parameters, wherein:

[0020] (1) Cationic treatment formula: 1.5% owf, NaOH 1g / L.

[0021] (2) Technological process: two dipping and two rolling cationic modification→baking→dyeing.

[0022] (3) Process parameters: cationic modification temperature 80°C, modification time 30 minutes; excess rate 100%, baking temperature 160°C, baking time 4 minutes; specific dyeing process: dyeing process formula: dye dosage 5% owf, soda ash 10g / L, the dyeing temperature is 60°C, the bath ratio is 1:20, and the dyeing time is 35min.

Embodiment 2

[0024] The dyeing method used in this embodiment for cotton fabric is formed by the combination of fabric cationic treatment formula, cationic treatment parameters, dyeing process flow and dyeing process parameters, wherein:

[0025] (1) Cationic treatment formula: 3% owf, NaOH 1g / L.

[0026] (2) Technological process: two dipping and two rolling cationic modification→baking→dyeing.

[0027] (3) Process parameters: Cationic modification temperature 100°C, modification time 20 minutes; excess rate 100%, baking temperature 160°C, baking time 4 minutes; specific dyeing process: dyeing formula: 4% owf dye dosage, soda ash 10g / L, the dyeing temperature is 60°C, the liquor ratio is 1:10, and the dyeing time is 45min.

Embodiment 3

[0029] The dyeing method used in this embodiment for cotton fabric is formed by the combination of fabric cationic treatment formula, cationic treatment parameters, dyeing process flow and dyeing process parameters, wherein:

[0030] (1) Cationic treatment formula: 3% owf, NaOH 1g / L.

[0031] (2) Technological process: one soaking and one rolling cationic modification → baking → dyeing.

[0032] (3) Process parameters: cationic modification temperature 100°C, modification time 20 minutes; excess rate 100%, baking temperature 150°C, baking time 4 minutes; dyeing process formula: dye dosage 5% owf, soda ash 10g / L, dyeing The temperature is 60°C, the bath ratio is 1:20, and the time is 35 minutes.

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PUM

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Abstract

The invention relates to a starch cationic modified cotton fabric dyeing method, which belongs to the technical field of fabric treatment. The fabric is modified by quaternary ammonium cationic starch, and after cationic modification is carried out by padding-baking, dyeing is carried out. The addition amount of the quaternary ammonium cationic starch is 1-3%owf, and the cationic modification temperature is 60- 100°C, modification time 10‑40 minutes. Applying the application to the treatment of cotton fabrics has the advantages of short process, high color fastness, good wrinkle resistance and the like.

Description

technical field [0001] The invention relates to a starch cationic modified cotton fabric dyeing method, which belongs to the technical field of fabric treatment. Background technique [0002] Cotton fiber is the most used natural textile fiber in the world, and it is usually dyed with reactive dyes at present. Like most cellulose fibers, cotton fibers will generate negative charges due to the ionization of hydroxyl groups when they come into contact with water, and reactive dyes are anionic dyes, so that the fibers and dyes repel each other due to the same electrical property, so usually There is the problem of low dyeing rate. In the traditional dyeing process, it is necessary to add a large amount of salt (such as sodium chloride, sodium sulfate) to promote dyeing, improve the dyeing rate, and to add alkali to fix the color. The use of a large amount of salt and alkali in the dyeing process not only increases the cost of dyeing, but also increases pollution emissions. A...

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): D06P1/66D06P1/38D06P3/66D06P5/22
CPCD06P1/66D06P1/38D06P3/66D06P5/225
Inventor 姚江薇吴继华李进堂
Owner SHAOXING UNIVERSITY
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