A kind of dyeing method of denim fabric

A technology of denim fabric and dyeing method, which is applied in the field of dyeing and dyeing of denim fabric, can solve the problems of complex washing and finishing process, achieve high washing fastness, improve quality and yield, and facilitate large-scale industrial production.

Active Publication Date: 2019-02-12
YIBIN SPARK NEW FIBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The existing patent document CN101343812 (a color-spun knitted colored denim fabric and its production method, 2009.01.014, D04B1 / 14) proposed low-temperature pretreatment of cotton loose fibers, full-environmental-friendly sulfur dye dyeing, and color-spinning process route spinning The method for preparing colored denim fabrics, on the one hand, can change the color of the original single navy blue, on the other hand, the use of environmentally friendly sulfur dyes reduces the pollution of the production environment, but the washing and finishing process is complicated

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

[0034] This embodiment proposes a kind of dyeing method of denim fabric, and this dyeing method is the dyeing process that the fiber raw material of preparation denim fabric is carried out before spinning, and step comprises:

[0035](1) Pretreatment: Make the fiber raw materials for denim fabric into silk cakes and put them into the dyeing vat, control the amount of high-strength and low-elongation viscose fiber and water in the vat according to the bath ratio of 1:5, and add additives to it ;

[0036] (2) Dyeing: Add dye, sodium sulfate and alkali to the tank to dye the high-strength and low-elongation viscose fiber;

[0037] (3) Post-treatment: The dyed high-strength low-elongation viscose fiber is oil-treated to obtain a dyed fiber product.

[0038] Among them, the fiber raw material for preparing the denim fabric is a high-strength low-elongation viscose fiber with a dry breaking strength of 2.8CN / DTEX and a dry elongation of 15%.

Embodiment 2

[0040] This embodiment proposes a kind of dyeing method of denim fabric, and this dyeing method is the dyeing process that the fiber raw material of preparation denim fabric is carried out before spinning, and step comprises:

[0041] (1) Pretreatment: Make the fiber raw materials for denim fabric into silk cakes and put them into the dyeing vat, control the amount of high-strength low-elongation viscose fiber and water in the vat according to the bath ratio of 1:12, and add additives to it ;

[0042] (2) Dyeing: Add dye, sodium sulfate and alkali to the tank to dye the high-strength and low-elongation viscose fiber;

[0043] (3) Post-treatment: The dyed high-strength low-elongation viscose fiber is oil-treated to obtain a dyed fiber product.

[0044] Among them, the fiber raw material for preparing the denim fabric is a high-strength low-elongation viscose fiber with a dry breaking strength of 3.1CN / DTEX and a dry elongation of 11%.

Embodiment 3

[0046] This embodiment proposes a kind of dyeing method of denim fabric, and this dyeing method is the dyeing process that the fiber raw material of preparation denim fabric is carried out before spinning, and step comprises:

[0047] (1) Pretreatment: Make high-strength and low-elongation viscose fiber into a silk cake with a height of 80mm and put it into the dyeing vat, soak the silk cake with water and release the pressure, then pour water into the vat at a bath ratio of 1:12 Control the amount of high-strength low-elongation viscose fiber and water in the tank, and add additives to it;

[0048] (2) Dyeing: Add dye, sodium sulfate and alkali to the tank to dye the high-strength and low-elongation viscose fiber;

[0049] (3) Post-treatment: The dyed high-strength low-elongation viscose fiber is oil-treated to obtain a dyed fiber product.

[0050] Among them, the fiber raw material for preparing the denim fabric is a high-strength low-elongation viscose fiber with a dry bre...

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 dying method of jeans fabric which relates to a pre-spinning dying process of the fiber materials of jeans fabric. The dying process comprises the steps of pretreating, dying and post-treating steps. The fiber materials of the jeans fabric is the high strength low stretch viscose fiber with dry breaking strength of 2.8 to 3.1 CN / DTEX and dry elongation rate of 11% to 15%. The method provided by the invention is the dying process of the fiber materials for the jeans fabric manufacturing which uses the high strength low stretch viscose fiber with dry breaking strength of 2.8 to 3.1 CN / DTEX and dry elongation rate of 11% to 15% as the fiber materials. The materials undergo the fiber dying process and spinning process and the like to become the jeans fabric. The method is helpful to solve the problems of low yielding rate and non-fulfillment of environment protection requirements which at present is prevailing in the prior art of jeans fabrics manufacturing process. The method can be widely applied and promoted.

Description

technical field [0001] The invention relates to a denim fabric dyeing method, in particular to a denim fabric dyeing method prepared from high-strength low-elongation viscose fibers, and belongs to the technical field of denim fabric preparation. 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, there are also a series of blended fabrics, such as cotton / polyester (50 / 50) blended fabrics, and cotton and other fibers such as Tencel, linen, or even jute, wool Yarn and other fibers are woven together, which expands the categories and special requirements of denim fabrics, and develops special non-cotton denim fabrics with denim style. Such as patent documents CN105803761A (a production process of colored soft denim, 2016.07.27, D06M11 / 50), CN105200625A (a production method of micro-elastic denim imitation fab...

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): D06P1/38D06P1/673D06P1/647D06P3/66
CPCD06P1/38D06P1/647D06P1/6735D06P3/66
Inventor 张静陈容李世玲杨雪琴唐多
Owner YIBIN SPARK NEW FIBER CO LTD
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