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Rapid dyeing process of jean fabric

A technology for rapid dyeing and denim fabrics, which is applied in the field of fabric dyeing technology, and can solve the problems of denim fabrics that are prone to fading, easy to rub or wash, and have poor color fixing effect.

Active Publication Date: 2020-07-10
李盛强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This dyeing method shortens the dyeing time of the warp yarn, but the color fixing effect of the warp yarn is poor, and it is easy to rub or wash off the color
Therefore, need to provide a kind of rapid dyeing process of denim fabric, when realizing the rapid dyeing of warp yarn, improve the problem that denim fabric is easy to fade

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

preparation example 1

[0078] Accelerator in preparation example 1 comprises the raw material of following weight:

[0079] Diethylenetriamine / kg Polyepichlorohydrin-dimethylamine / kg water / kg 20 40 1000

[0080] The preparation steps of the dye accelerator in Preparation Example 1 are as follows:

[0081] In step (a), add 50kg of diethylenetriamine to 50kg of water, and stir evenly to obtain diethylenetriamine with a weight percentage of 50%;

[0082] Step (b), add 25kg polyepichlorohydrin-dimethylamine to 75kg water, after mixing uniformly, obtain the polyepichlorohydrin-dimethylamine that weight percent is 25%;

[0083] Step (c), add 860kg of water into the dipping tank, and heat the water to 55°C;

[0084] Step (d), simultaneously adding 40kg of diethylenetriamine with a weight percentage of 50% and 160kg of polyepichlorohydrin-dimethylamine with a weight percentage of 25% to water at a temperature of 55°C, and keeping the whole The temperature of the system is 55°C and...

preparation example 2

[0086] The differences between Preparation Example 2 and Preparation Example 1 are: (1) the ratio of raw materials is different; (2) the dilution concentration of diethylenetriamine in step (a) is different; (3) the polyepichlorohydrin in step (b) - different dilution concentrations of dimethylamine; (4) different temperature of water in step (c).

[0087] Wherein, the accelerator in the preparation example 2 comprises the raw material of following weight:

[0088] Diethylenetriamine / kg Polyepichlorohydrin-dimethylamine / kg water / kg 30 60 1000

[0089] The preparation steps of the dye accelerator in preparation example 2 are as follows:

[0090] In step (a), add 25kg of diethylenetriamine to 75kg of water, and stir evenly to obtain diethylenetriamine with a weight percentage of 25%;

[0091] Step (b), add 20kg polyepichlorohydrin-dimethylamine to 80kg water, after mixing uniformly, obtain the polyepichlorohydrin-dimethylamine that the weight percentage...

preparation example 3

[0095] The difference between Preparation Example 3 and Preparation Example 1 lies in: (1) the ratio of raw materials is different; (2) the temperature of water in step (c) is different.

[0096] Accelerator in preparation example 3 comprises the raw material of following weight:

[0097] Diethylenetriamine / kg Polyepichlorohydrin-dimethylamine / kg water / kg 25 50 1000

[0098] Wherein, the preparation steps of the dyeing accelerator in Preparation Example 3 are as follows:

[0099] In step (a), add 50kg of diethylenetriamine to 50kg of water, and stir evenly to obtain diethylenetriamine with a weight percentage of 50%;

[0100] Step (b), add 25kg polyepichlorohydrin-dimethylamine to 75kg water, after mixing uniformly, obtain the polyepichlorohydrin-dimethylamine that weight percent is 25%;

[0101] Step (c), add 825kg of water into the dipping tank, and heat the water to 60°C;

[0102] Step (d), simultaneously adding 50kg of diethylenetriamine with a w...

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 discloses a rapid dyeing process of jean fabric, and belongs to the technical field of fabric dyeing processes. The rapid dyeing process comprises the following steps of soaping; pre-impregnating, specifically, carrying out pre-impregnating and roll compacting on soaped warp yarns by adopting an accelerating agent; dyeing specifically, dyeing the pre-impregnated warp yarns by adopting an indigo dye, and carrying out roll compacting; oxidation, specifically, carrying out oxidation discoloration on the indigo dye by air; primary water washing, specifically, carrying out primary water washing and roll compacting on the oxidized warp yarns; color fixing, specifically, fixing the color of the warp yarns subjected to primary washing by using a color fixing agent, and performing roll compacting; secondary water washing, specifically, carrying out secondary water washing and roll compacting on the warp yarns subjected to color fixation; and drying, specifically, drying the warp yarns subjected to secondary water washing by adopting a steam drying roller. The accelerating agent is prepared from the following raw materials in parts by weight, 20-30 parts of diethylenetriamine;40-60 parts of polyepichlorohydrin-dimethylamine and 1000 parts of water. According to the rapid dyeing process, the problem that the jean fabric is easy to fade can be solved while rapid dyeing of the warp yarns is realized.

Description

technical field [0001] The invention relates to the technical field of fabric dyeing techniques, in particular to a rapid dyeing technique for denim fabrics. Background technique [0002] Traditional denim fabrics are made from pure cotton through spinning, dyeing, sizing, weaving and finishing. In order to improve the performance of denim fabrics, in the current denim market, a series of blended fabrics are also used, such as cotton / polyester blended fabrics, and cotton and other fibers (such as flax, jute, wool yarn, etc.) The categories and special requirements of denim fabrics have been expanded, and special non-cotton denim fabrics with denim style have been developed. [0003] Among them, whether it is traditional denim fabrics or denim fabrics with high additional properties made of blended fabrics, the method of dyeing yarns before weaving is generally used, and warp yarns are mainly dyed with indigo dyes or sulfur dyes. But, in actual operation process, because in...

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): D06P1/22D06P1/44D06P1/613D06P1/66D06P5/08
CPCD06P1/228D06P1/445D06P1/6133D06P1/6138D06P1/66D06P5/08
Inventor 李伟坚麦丽芬李盛强
Owner 李盛强
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