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A kind of method for preparing denim fabric

A technology for denim fabrics and dyes, applied in dyeing method, liquid/gas/vapor yarn/filament treatment, textile and papermaking, etc., can solve the problems of complicated washing and finishing process, achieve high washing fastness, reduce water consumption, Beneficial for 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 example proposes a method for preparing denim fabrics, using high-strength and low-elongation viscose fibers with a dry breaking strength of 2.8CN / DTEX and a dry elongation of 12% to obtain the denim fabric after dyeing, spinning, weaving, and washing. Said denim fabric.

Embodiment 2

[0036]This example proposes a method for preparing denim fabrics, using high-strength and low-elongation viscose fibers with a dry breaking strength of 3.1CN / DTEX and a dry elongation of 15% to obtain the denim fabric after dyeing, spinning, weaving, and washing. Said denim fabric, wherein, dyeing comprises the following steps:

[0037] (1) Pretreatment: Make the high-strength low-elongation viscose fiber into a silk cake and put it 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 1:5-12, and add Auxiliary;

[0038] (2) Dyeing: Add dye, sodium sulfate and alkali to the tank to dye the high-strength and low-elongation viscose fiber;

[0039] (3) Post-treatment: The dyed high-strength low-elongation viscose fiber is oil-treated to obtain a dyed fiber product.

Embodiment 3

[0041] This example proposes a method for preparing denim fabrics, using high-strength and low-elongation viscose fibers with a dry breaking strength of 2.8CN / DTEX and a dry elongation of 11% to obtain the denim fabric after dyeing, spinning, weaving, and washing. Said denim fabric, wherein, dyeing comprises the following steps:

[0042] (1) Pretreatment: Make the high-strength low-elongation viscose fiber into a silk cake and put it 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 1:5, and add additives to it ;

[0043] (2) Dyeing: Add dye, sodium sulfate and alkali to the tank to dye the high-strength and low-elongation viscose fiber;

[0044] (3) Post-treatment: The dyed high-strength low-elongation viscose fiber is oil-treated to obtain a dyed fiber product.

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 method of producing denim fabric. The denim fabric is produced by subjecting high-strength low-stretch viscose that has dry breaking strength of 2.8-3.1 CN / DTEX and dry elongation of 11-15% to dying, spinning, weaving and washing. The high-strength low-stretch viscose is used as a raw material, and after fiber dyeing is utilized in dyeing, spinning and weaving are carried out to obtain the denim fabric; the problem is solved that since all existing denim fabrics are produced via a process of spinning prior to dyeing or weaving prior to dyeing, great waste, environment unfriendliness, low first-grade rate, high labor intensity, poor color fastness and poor dyeing environment are caused; the problems such as low yield of denim fabric, and dissatisfied environment protection are solved; the method is suitable for wide range of popularization and use.

Description

technical field [0001] The invention relates to a method for preparing denim fabrics, in particular to a method for preparing denim fabrics with high-strength and low-elongation viscose fibers, and belongs to the field of denim textiles. 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 fabric, 2015...

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): D06P3/60D06B3/09D06P1/00D06P1/673
CPCD06B3/09D06P1/00D06P1/6735D10B2201/24
Inventor 张静陈容李世玲杨雪琴唐多
Owner YIBIN SPARK NEW FIBER CO LTD
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