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A kind of nylon fabric dyeing process with high dyeing rate

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 effect of reducing emissions

Active Publication Date: 2022-07-29
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

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

[0024] A nylon fabric dyeing process with high dye uptake comprises the following steps:

[0025] S1 pre-treatment: put the nylon fabric into the water tank at 35-45℃ for 10-18min, then add the scouring agent, the liquor ratio is 1:7, heat up to 75℃ and keep it for 30min;

[0026] S2 washing: after the heat preservation, remove the water in the tank, add water for washing twice, each time is 10min, then add water and 98% concentration of glacial acetic acid to heat up to 50 ℃, wash with water for 16min;

[0027] S3 Dyeing: Put the washed nylon fabric into a dye vat with a temperature of 20°C, add dye liquor and dye auxiliaries, stir for 10min, pH is 4.5, and the liquor ratio is 1:8, then the temperature is raised to 90°C, and the temperature is kept for 25min;

[0028] S4 Fixing: After dyeing, the temperature of the dyeing tank is lowered to 60℃, and then the fixing agent is added, the liquor ratio is 1:20, and the color is fixed and kept for 20 minutes;

[0029] S5 Out of th...

Embodiment 2

[0038] A nylon fabric dyeing process with high dye uptake comprises the following steps:

[0039] S1 pre-treatment: put the nylon fabric into a water tank at 35-45℃ for 11min, then add scouring agent, the liquor ratio is 1:(7-10), heat up to 78℃ and keep warm for 32min;

[0040] S2 water washing: after the heat preservation is completed, the water in the tank is removed, and water is added for washing twice, each time is 13 minutes, then water and 98% concentration of glacial acetic acid are added to heat up to 56 ° C, and the water is washed 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 dye auxiliaries, stir for 14min, pH is 4.7, and the liquor ratio is 1:8, then the temperature is raised to 92°C, and the temperature is kept for 28min;

[0042] S4 Fixing: After dyeing, reduce the temperature of the dyeing tank to 63 °C, then add the fixing agent, the liquor ratio is 1:20, and the color fixing is k...

Embodiment 3

[0052] A nylon fabric dyeing process with high dye uptake comprises the following steps:

[0053] S1 pre-treatment: put the nylon fabric into a water tank at 40°C for 14 minutes, then add scouring agent, the liquor ratio is 1:8, and the temperature is raised to 82°C and then kept for 35 minutes;

[0054] S2 washing: after the heat preservation is completed, the water in the tank is removed, and water is added for washing twice, each time is 17min, then water and 98% concentration of glacial acetic acid are added to heat up to 65°C, and washed with water for 20min;

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

[0056] S4 Fixing: After dyeing, reduce the temperature of the dyeing tank to 70℃, then add the fixing agent, the liquor ratio is 1:20, and the color fixing is kept for 27 minutes;...

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 relates to the technical field of dyeing technology, in particular to a nylon fabric dyeing technology with high dye uptake. The process steps of the invention are as follows: the nylon fabric is pretreated to remove impurities and oil stains in the fibers, washed with water for many times and then placed in a dyeing vat for dyeing, the temperature is raised to 90-100°C, and after dyeing is completed, the temperature is lowered to perform color-fixing treatment, The cloth is released after washing again. The dyeing process has the characteristics of high dyeing rate, strong color fixation, not easy to produce color flowers, and energy saving and emission reduction.

Description

technical field [0001] The present invention relates to the technical field of dyeing technology, in particular to a nylon fabric dyeing technology with high dye uptake. Background technique [0002] Nylon fabric has been widely used in clothing fabrics, high-end underwear, sportswear and mountaineering clothes because of its good elasticity, excellent wear resistance, better hygroscopicity than polyester fiber, and better wearing comfort than polyester clothing. . 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 most cases, acid dyes are used in the dyeing and processing of nylon fabrics. Since acid dyes are anionic dyes with small molecular weight and good water solubility, some dyes bound to fibers in aqueous solution will dissoci...

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): 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