Chinlon fabric dyeing process with high dye uptake

A fabric dyeing and nylon technology, applied in the field of dyeing technology, can solve the problems of low light fastness of acid dyes, poor washing fastness, wet and dry rubbing fastness, and perspiration fastness of nylon fabrics, etc., to achieve good results. Dyeing effect, simplification of process steps, and cost saving effects

Active Publication Date: 2021-06-01
晋江市鸿瀚纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the dyeing process of nylon fabrics, acid dyes are used for dyeing in most cases. Since acid dyes are anionic dyes with small molecular weight and good water solubility, some dyes bonded to fibers in aqueous solution will dissociate, resulting in nylon after dyeing. The washing fastness, dry and wet rubbing fastness, and perspiration fastness of the fabric are poor, and because the acid dye itself has a low level of light fastness, it is necessary to use a color fixing agent to improve the color fastness of nylon fabrics.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A nylon fabric dyeing process with high dye uptake, comprising the steps of:

[0025] S1 pre-treatment: soak the nylon fabric in a water tank at 35-45°C for 10-18 minutes, then add scouring agent, the bath ratio is 1:7, heat it up to 75°C and keep it warm for 30 minutes;

[0026] S2 water washing: After the heat preservation is completed, remove the water in the tank, then add water to wash twice, each time is 10 minutes, then add water and 98% glacial acetic acid to raise the temperature to 50 ° C, and wash with water for 16 minutes;

[0027] S3 Dyeing: Put the washed nylon fabric into a dye vat with a temperature of 20°C, add dye liquor and dyeing assistants and stir for 10 minutes, the pH is 4.5, the liquor ratio is 1:8, then heat up to 90°C, and keep warm for 25 minutes;

[0028] S4 color fixation: After dyeing, lower the temperature of the dyeing vat to 60°C, then add a color fixing agent, the liquor ratio is 1:20, and keep the color for 20 minutes;

[0029] S5 ou...

Embodiment 2

[0038] A nylon fabric dyeing process with high dye uptake, comprising the steps of:

[0039] S1 pre-treatment: soak the nylon fabric in a water tank at 35-45°C for 11 minutes, then add scouring agent, the bath ratio is 1:(7-10), heat it up to 78°C and keep it warm for 32 minutes;

[0040] S2 water washing: After the heat preservation is completed, remove the water in the tank, then add water to wash twice, each time is 13 minutes, then add water and 98% glacial acetic acid to raise the temperature to 56 ° C, and wash with water for 18 minutes;

[0041] S3 dyeing: put the washed nylon fabric into a dye vat with a temperature of 21°C, add dye liquor and dyeing auxiliaries and stir for 14 minutes, the pH is 4.7, the bath ratio is 1:8, then heat up to 92°C, and keep warm for 28 minutes;

[0042] S4 color fixation: After dyeing, lower the temperature of the dyeing vat to 63°C, then add the color fixing agent, the bath ratio is 1:20, and keep the color for 24 minutes;

[0043] S5 o...

Embodiment 3

[0052] A nylon fabric dyeing process with high dye uptake, comprising the steps of:

[0053] S1 pre-treatment: soak the nylon fabric in a water tank at 40°C for 14 minutes, then add scouring agent with a bath ratio of 1:8, heat it up to 82°C and keep it warm for 35 minutes;

[0054] S2 water washing: After the heat preservation is completed, remove the water in the tank, then add water to wash twice, each time is 17 minutes, then add water and 98% glacial acetic acid to raise the temperature to 65 ° C, and wash with water for 20 minutes;

[0055] S3 dyeing: put the washed nylon fabric into a dye vat with a temperature of 22°C, add dye liquor and dyeing auxiliaries and stir for 17 minutes, the pH is 5, the bath ratio is 1:9, then heat up to 95°C, and keep warm for 32 minutes;

[0056] S4 color fixation: After dyeing, lower the temperature of the dyeing vat to 70°C, then add a color fixing agent, the bath ratio is 1:20, and keep the color for 27 minutes;

[0057] S5 out of the ...

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PUM

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Abstract

The invention relates to the technical field of dyeing processes, in particular to a chinlon fabric dyeing process with high dye uptake. The process comprises the following steps: pre-treating chinlon fabric, removing impurities and oil stains in fibers, washing for multiple times, putting the washed chinlon fabric into a dye vat for dyeing, raising the temperature to 90-100 DEG C, cooling and carrying out color fixation treatment after dyeing, washing again, and then discharging the fabric. The dyeing process has the characteristics of high dye uptake, strong color fixation, difficult generation of dyeing defects, energy conservation and emission reduction.

Description

technical field [0001] The invention relates to the technical field of dyeing technology, in particular to a nylon fabric dyeing technology with high dye uptake. Background technique [0002] Because of its good elasticity, excellent abrasion resistance, better hygroscopicity than polyester fiber, and better wearing comfort than polyester clothing, nylon fabric has been widely used in clothing fabrics, high-end underwear, sportswear and mountaineering clothing, etc., and is favored by people. . With the development of social economy and the improvement of living standards, people pay more attention to ecological and environmental protection issues, and put forward higher requirements for the color fastness of dyed fabrics, especially the color fastness of export textile products. In the dyeing process of nylon fabrics, acid dyes are used for dyeing in most cases. Since acid dyes are anionic dyes with small molecular weight and good water solubility, some dyes bonded to fibe...

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 Applications(China)
IPC IPC(8): D06P3/24D06P1/00D06P1/39D06P1/44D06P5/06
CPCD06P3/241D06P1/39D06P1/44D06P5/06D06P1/0032
Inventor 王忠付春林施志雄施毅然施馨馨
Owner 晋江市鸿瀚纺织科技有限公司
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