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A kind of dyeing and finishing method of cotton knitted fabric

A technology of cotton knitted fabrics and liquor ratio, which is applied in dyeing, enzyme/microbial biochemical treatment, plant fiber, etc., can solve the problems of serious waste water treatment burden, large water consumption and energy consumption, and complicated operation process, so as to promote Absorption and dyeing efficiency, reduction of emissions and energy consumption, effect of simplified process

Active Publication Date: 2018-11-23
DONGGUAN TEXWINCA HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional dyeing and finishing method is to carry out the steps of desizing, scouring, bleaching, dyeing, and finishing of cotton knitted fabrics in sequence. and high energy consumption, the burden of subsequent wastewater treatment is serious

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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  • A kind of dyeing and finishing method of cotton knitted fabric
  • A kind of dyeing and finishing method of cotton knitted fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] In the present embodiment, a kind of dyeing and finishing method of cotton knitted fabric comprises the following steps:

[0027] (1) Pre-treatment: place the cotton knitted fabric in water at 60°C for 10 minutes, then add a pre-treatment agent with a bath ratio of 1:20, and treat it for 70 minutes at a temperature of 60°C and a pH of 8.5. Washing with water; the pretreatment agent is mixed with a compound liquid enzyme preparation and a compound bleach, and the mass ratio of the compound enzyme preparation to the compound bleach is 1:1;

[0028] (2) Dyeing and color fixation: Put the cotton knitted fabric pretreated in step (1) in the modifying solution, the liquor ratio is 1:45, and the cotton knitted fabric is subjected to two dipping and two rolling treatments at a temperature of 32°C. The remaining rate is 80%, and it is dried; the cotton knitted fabric treated with the modified liquid is dyed with dye liquor, the bath ratio is 1:20, the initial dyeing temperature ...

Embodiment 2

[0038] In the present embodiment, a kind of dyeing and finishing method of cotton knitted fabric comprises the following steps:

[0039] (1) Pre-treatment: place the cotton knitted fabric in 55°C water for 15 minutes, then add a pre-treatment agent with a liquor ratio of 1:15, treat it at a temperature of 55°C and pH 9 for 60 minutes, and then wash it with water; The pretreatment agent is composed of compound liquid enzyme preparation and compound bleaching agent, and the mass ratio of compound enzyme preparation and compound bleaching agent is 1:1.2;

[0040] (2) Dyeing and color fixation: Put the cotton knitted fabric pretreated in step (1) in the modifying solution, the liquor ratio is 1:40, and the cotton knitted fabric is subjected to two dipping and two rolling treatments at a temperature of 30°C, and the rolling The remaining rate was 78%, and it was dried; the cotton knitted fabric treated with the modified liquid was dyed with dye liquor, the bath ratio was 1: 25, the...

Embodiment 3

[0050] In the present embodiment, a kind of dyeing and finishing method of cotton knitted fabric comprises the following steps:

[0051] (1) Pre-treatment: Put the cotton knitted fabric in 58°C water for 12 minutes, then add pre-treatment agent, the bath ratio is 1:18, and treat it at 58°C and pH8 for 80 minutes, the rolling rate 80%, washed with water; the pretreatment agent is a mixture of compound liquid enzyme preparation and compound bleaching agent, and the mass ratio of compound enzyme preparation and compound bleaching agent is 1:0.8;

[0052] (2) Dyeing and color fixation: Put the cotton knitted fabric pretreated in step (1) in the modifying solution, the bath ratio is 1:45, and the cotton knitted fabric is subjected to two dipping and two rolling treatments at a temperature of 33°C, and the rolling The residual rate is 75%, and it is dried; the cotton knitted fabric treated with the modified liquid is dyed with dyeing liquid, the bath ratio is 1:22, the initial dyein...

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 and finishing of textiles, in particular to a dyeing and finishing method of a cotton knitted fabric. The dyeing and finishing method of the cotton knitted fabric comprises the following steps: (1) pretreatment: after wetting the cotton knitted fabric, treating the cotton knitted fabric with a pretreatment agent, and washing with water, wherein the pretreatment agent is formed by mixing a composite liquid enzyme preparation and a composite bleaching agent; (2) dyeing and color fixing: treating the cotton knitted fabric in modifying liquid, drying, dyeing with dye liquor, and fixing the color with sodium carbonate; and (3) aftertreatment: soaping with a soaping agent, and after washing with water, drying. The composite liquid enzyme preparation and the composite bleaching agent are mixed, the cotton knitted fabric is refined and bleached by a one-bath process, the technology is simplified, and sewage drainage and energy consumption are reduced; the cotton knitted fabric is modified in advance by the modifying liquid before dyeing, the use amount of neutral salt is reduced, the cost is reduced, environmental pollution is reduced, and meanwhile, the leveling effect is improved; and the cotton knitted fabric is stable in quality, is soft and comfortable, and has good color fixing property and mechanical property.

Description

technical field [0001] The invention relates to the technical field of textile dyeing and finishing, in particular to a method for dyeing and finishing cotton knitted fabrics. Background technique [0002] Cotton knitted fabric is a fabric woven from cotton yarn. It has good breathability and moisture absorption, is wear-resistant and washable, soft and comfortable, and is widely used in clothing fabrics, decorative fabrics and industrial fabrics. [0003] The production of cotton knitted fabrics includes spinning, weaving and dyeing and finishing processes. The quality of dyeing and finishing has an important impact on the use value of textiles. The dyeing and finishing of cotton knitted fabrics plays an important role in improving the appearance of knitted fabrics, improving the performance, improving product quality, and increasing the variety of designs and colors. The traditional dyeing and finishing method is to carry out the steps of desizing, scouring, bleaching, dy...

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): D06M16/00D06L4/13D06L4/12D06M13/463D06M15/53D06P1/38D06P1/673D06P1/613D06P3/66D06P5/10D06M101/06
CPCD06M13/463D06M15/53D06M16/003D06M2101/06D06P1/38D06P1/613D06P1/6735D06P1/67366D06P3/008D06P3/66D06P5/10
Inventor 吴武平
Owner DONGGUAN TEXWINCA HLDG
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