Dyeing method of elastic patterned gray blended knitted fabric

A technology of knitted fabrics and dyeing methods, applied in the field of dyeing and finishing technology, can solve the problems of high energy consumption, long process time, cumbersome procedures, etc., and achieve the effects of avoiding color difference, simplifying the dyeing process, and optimizing the dyeing and finishing process

Inactive Publication Date: 2019-12-13
PACIFIC (PANYU) TEXTILES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Including pretreatment, soaping and other process steps, the procedure is cumbersome, the process time is long, and the energy consumption is large

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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  • Dyeing method of elastic patterned gray blended knitted fabric
  • Dyeing method of elastic patterned gray blended knitted fabric
  • Dyeing method of elastic patterned gray blended knitted fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method for dyeing elastic flower gray blended knitted fabrics, the method comprising the following steps:

[0031] 1) Pre-treatment, degreasing the elastic greige of the elastic flower gray blended knitted fabric blended with 53% polybutylene terephthalate cationic modified fiber, 42% polyamide fiber and 5% polyurethane fiber , fixed embryo;

[0032] 2) Dyeing, put the pre-treated elastic gray cloth into the dyeing vat, add water, then add 0.3g / L dispersant according to the amount of water added, 2 / 3 of the total amount of color leveling agent, 0.3g / L of acid release agent.

[0033] Heat to raise the temperature of the dye solution to 40°C, add acid dye within 15 minutes, run for 6 minutes, control the pH value to 6-7, linearly raise the temperature to 60°C at a heating rate of 1°C / min, add acetic acid to adjust the pH value to 3.5 After adding an appropriate amount of cationic dye and the balance of the color leveling agent, the temperature was raised linearly to 1...

Embodiment 2

[0040] A method for dyeing elastic flower gray blended knitted fabrics, the method comprising the following steps:

[0041] 1) Pre-treatment, degreasing the elastic greige of the elastic flower gray blended knitted fabric blended with 53% polybutylene terephthalate cationic modified fiber, 42% polyamide fiber and 5% polyurethane fiber , fixed embryo;

[0042]2) Dyeing, put the pre-treated elastic gray cloth into the dye vat, add water, then add 1.0g / L dispersant according to the amount of water added, 2 / 3 of the total amount of color leveling agent, 0.4g / L of acid release Adding agent, heating to raise the temperature of the dye solution to 40°C, adding acid dye in 15 minutes, running for 6 minutes, controlling the pH value to 6-7, linearly raising the temperature to 60°C at a heating rate of 1.2°C / min, adding acetic acid to adjust the pH value to 3.2. After adding an appropriate amount of cationic dyes and the balance of the color leveling agent, linearly raise the temperatu...

Embodiment 3

[0048] A method for dyeing elastic flower gray blended knitted fabrics, the method comprising the following steps:

[0049] 1) Pre-treatment, degreasing the elastic greige of the elastic flower gray blended knitted fabric blended with 53% polybutylene terephthalate cationic modified fiber, 42% polyamide fiber and 5% polyurethane fiber , fixed embryo;

[0050] 2) Dyeing, put the pre-treated elastic gray cloth into the dye vat, add water, then add 1.2g / L dispersant according to the amount of water added, 0.2g / L acid release agent for color leveling agent of 2 / 3 of the total amount added, Heat to raise the temperature of the dye solution to 40°C, add acid dye in 15 minutes, run for 6 minutes, control the pH value to 6-7, linearly raise the temperature to 60°C at a heating rate of 3°C / min, add acetic acid to adjust the pH value to 3.5, add Proper amount of cationic dyes and the remaining amount of color leveling agent are linearly raised to 120°C at a heating rate of 3°C / min, run...

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 a dyeing method of an elastic patterned gray blended knitted fabric. The method comprises the following steps of (1) pretreatment, wherein oil removal and gray cloth setting are carried out on an elastic gray cloth of the elastic patterned gray blended knitted fabric; (2) dyeing, wherein the elastic gray cloth is put into a dyeing vat, and water, a dispersant, a part of acolor homogenizing agent and an acid releasing agent are added for dyeing; (3) post-treatment, wherein a color fixing agent is added for color fixing after the gray cloth is washed with water. According to the method, a two-step approach based on one bath is adopted, the pretreatment of oil removal and gray cloth setting is carried out, and then the dispersant, the color homogenizing agent and theacid releasing agent are adopted, so that oligomer agglomeration is prevented, it is ensured that a stable acidic environment is formed in the dyeing process, and a great coloring effect is realized;finally, the color stability of the dyed gray cloth is ensured through the post-treatment of washing and color fixing; the color fastness is high, a dyeing and finishing process is optimized, the dyeing process is simplified, the working time is shortened, the energy consumption is reduced, the color difference of fabrics after dyeing and finishing processing is avoided, and the finished productefficiency is obviously improved.

Description

technical field [0001] The invention relates to the technical field of dyeing and finishing technology, in particular to a method for dyeing elastic gray gray blended knitted fabrics. Background technique [0002] The term flower ash in flower ash blend knitted fabric comes from its appearance and color resembling burnt cigarette ash. The traditional dyeing process of gray and gray blended knitted fabrics is to directly dye the fabric fibers, and then make the fabric fibers into yarns through combing, drawing, twisting and other processes, and then knitting and weaving the yarns to obtain fabrics. However, due to the elasticity of the yarn, spinning and weaving in this process has great difficulty. In addition, after dyeing the fabric fibers, weaving, weaving, subsequent processing and other processing procedures will easily lead to differences in the color of the fabric and low efficiency of finished products. [0003] At present, the dyeing process of gray and gray blend...

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): D06P1/39D06P1/00D06P1/613D06P1/62D06P1/649D06P1/651D06P1/52D06P3/82D06P5/02D06P5/04
CPCD06P1/00D06P1/0032D06P1/39D06P1/5292D06P1/6136D06P1/623D06P1/627D06P1/6495D06P1/65118D06P3/8204D06P5/02D06P5/04
Inventor 冯艳赵英武陈家杰傅彭成谌丹丹
Owner PACIFIC (PANYU) TEXTILES LTD
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