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Washing method of yarn dyed denim

A technology of denim and yarn-dyed weaving, applied in textiles and papermaking, dry-cleaning fiber products, fiber treatment, etc., can solve the problems of denim’s elongation at break, denim’s air permeability, and denim’s air permeability. Shorten the washing time, facilitate the removal, and accelerate the removal effect

Inactive Publication Date: 2018-11-23
界首市恒仁服饰有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the traditional washing methods use hydrogen peroxide washing, sodium hypochlorite washing, potassium permanganate washing and cellulase washing. The air permeability of the denim after washing decreases, and the elongation at break of the denim also decreases, resulting in a decrease in the air permeability of the denim. poor comfort

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

[0026] A kind of washing method of yarn-dyed denim, concrete steps are as follows:

[0027] 1) Put the denim into clean water, add 7% sodium hydroxide solution, adjust the pH to 7.5, and heat to 45°C for desizing treatment;

[0028] 2) Repeatedly wash the desized denim with clean water 3 times;

[0029] 3) Dry the washed denim after dehydration;

[0030] 4) Soak the dried denim in the aqueous dispersion of nano-titanium dioxide, heat it in a constant temperature water bath to 50°C, and oscillate and disperse under 200W ultrasonic waves for 15 minutes;

[0031] 5) Take out the denim, move it to a vacuum container, pressurize to 5MPa, hold the pressure for 15 minutes, then increase the pressure to 15MPa, continue the pressure holding treatment for 20 minutes, and then quickly release the pressure to atmospheric pressure;

[0032] 6) Put the treated denim into clean water, add zeolite powder, heat to 35°C, and wash for 20 minutes;

[0033] 7) Take out the denim, put it into cl...

Embodiment 2

[0042] A kind of washing method of yarn-dyed denim, concrete steps are as follows:

[0043] 1) Put the denim into clean water, add 8% sodium hydroxide solution, adjust the pH to 7.8, and heat to 50°C for desizing treatment;

[0044] 2) Repeatedly wash the desized denim 4 times with clean water;

[0045] 3) Dry the washed denim after dehydration;

[0046] 4) Soak the dried denim in the aqueous dispersion of nano-titanium dioxide, heat it in a constant temperature water bath to 55°C, and oscillate and disperse under 200W ultrasonic waves for 17 minutes;

[0047] 5) Take out the denim, move it to a vacuum container, pressurize to 7MPa, hold the pressure for 20 minutes, then increase the pressure to 17MPa, continue the pressure holding treatment for 25 minutes, and then quickly release the pressure to atmospheric pressure;

[0048] 6) Put the treated denim into clean water, add zeolite powder, heat to 40°C, and wash for 23 minutes;

[0049] 7) Take out the denim, put it into cl...

Embodiment 3

[0058] A kind of washing method of yarn-dyed denim, concrete steps are as follows:

[0059] 1) Put the denim into clean water, add 10% sodium hydroxide solution, adjust the pH to 8.0, and heat to 55°C for desizing treatment;

[0060]2) Repeatedly wash the desized denim fabric 5 times with clean water;

[0061] 3) Dry the washed denim after dehydration;

[0062] 4) Soak the dried denim in the aqueous dispersion of nano-titanium dioxide, heat it in a constant temperature water bath to 60°C, and oscillate and disperse under 300W ultrasonic waves for 15-20min;

[0063] 5) Take out the denim, move it to a vacuum container, pressurize to 10MPa, hold the pressure for 25 minutes, then increase the pressure to 20MPa, continue the pressure holding treatment for 30 minutes, and then quickly release the pressure to atmospheric pressure;

[0064] 6) Put the treated denim into clean water, add zeolite powder, heat to 45°C, and wash for 25 minutes;

[0065] 7) Take out the denim, put it i...

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 washing method of yarn dyed denim. The washing method comprises the following steps: (1) placing the denim into clean water, adding a sodium hydroxide solution, and performing the desizing treatment; (2) repeatedly washing the desized denim by using clean water; (3) dehydrating the washed denim, and then drying; (4) soaking the dried denim in a nano titanium dioxide aqueous dispersion solution, heating, and performing the ultrasonic oscillation; (5) taking out the denim, transferring the denim into a vacuum container, and pressurizing; (6) placing the pressurized denim in clean water, adding zeolite powder, and washing the denim; (7) taking out the denim, placing the denim into clean water, adding a softening agent, and washing the denim; (8) washing the washed denim by using clean water, and then dehydrating and drying the denim. By adopting the washing method of the yarn dyed denim provided by the invention, the influence of the washing for the breaking strength and fiber micro morphology of the denim can be reduced, the gas permeability of the denim can also be improved, and the comfort can be improved.

Description

technical field [0001] The invention belongs to the technical field of washing of yarn-dyed fabric, and in particular relates to a washing method of yarn-dyed denim. Background technique [0002] Denim is a kind of thicker yarn-dyed warp-face twill cotton fabric. The warp yarn is dark in color, generally indigo blue, and the weft yarn is light in color, generally light gray or boiled white yarn, also known as indigo denim. Denim has experienced hundreds of years of experience from tooling to fashion and has never left the popular stage. [0003] The air permeability of denim directly affects the comfort of clothing. The main factors affecting the air permeability of denim are denim structure, fiber properties, spinning structure and environmental conditions. Most of the traditional washing methods use hydrogen peroxide washing, sodium hypochlorite washing, potassium permanganate washing and cellulase washing. The air permeability of the denim after washing decreases, and th...

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): D06L1/16D06L1/14D06M11/46
CPCD06L1/14D06L1/16D06M11/46
Inventor 张雷
Owner 界首市恒仁服饰有限公司
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