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A kind of dyeing method of utilizing natural dyestuff of walnut green bark to dye cellulose fiber

A technology of cellulose fiber and walnut green husk, applied in the application field of natural plant dyes, can solve the problems of exocarp discarding and waste

Inactive Publication Date: 2018-05-11
XINJIANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Walnut is a kind of nut with health-care and intellectual function, which is very popular among consumers. The planting area of ​​walnut in China is very large, so the source of raw material of walnut exocarp is very wide. For a long time, walnut exocarp has been regarded as a kind of waste. throw it away, it's a waste

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

[0010] Prepare 5g / L chitosan, put the fabric into the configured pre-treatment aqueous solution until fully soaked, then roll the fabric twice on the pressure dyeing machine, and then bake the fabric at 80°C for 10 minutes.

[0011] Ultrasonic water solvent is used to extract natural dyes from walnut green peel. The extraction process is as follows: take an appropriate amount of crushed walnut green peel, use water as solvent, ultrasonic power is 50W, temperature is 60°C, liquid-solid ratio is 10:1 ml / g, The extraction time was 30min, the pH value was 7, and the extraction rate was 10.2%.

[0012] The dyeing process of the fabric dyed with walnut green bark natural dye is as follows: the dye concentration is 3%, the bath ratio is 10:1, the dyeing is carried out at room temperature, the heating rate is 2°C / min, the temperature is raised to 60°C, and the temperature is kept for 60min. weight) sodium chloride, keep warm for 20~60min, add 3% (weight to fabric) trisodium phosphate,...

Embodiment 2

[0014] Prepare 10g / L chitosan, put the fabric into the configured pretreatment aqueous solution until completely soaked, then roll the fabric twice on the pressure dyeing machine, and then bake the fabric at 100°C for 8 minutes.

[0015] Ultrasonic water solvent is used to extract natural dyes from walnut green peel. The extraction process is as follows: take an appropriate amount of crushed walnut green peel, use water as solvent, ultrasonic power is 50W, temperature is 70°C, liquid-solid ratio is 15:1 ml / g, The extraction time was 40min, the pH value was 8, and the extraction rate was 12.5%.

[0016] The dyeing process of walnut green bark natural dyes is as follows: the dye concentration is 5%, the liquor ratio is 20:1, the dyeing is carried out at room temperature, the heating rate is 1°C / min, the temperature is raised to 70°C, and the heat preservation is 70min. Add 5% (weight to fabric) sodium chloride and keep warm for 20-60 minutes, then add 5% (weight to fabric) triso...

Embodiment 3

[0018] Prepare 15g / L chitosan, put the fabric into the configured pre-treatment aqueous solution until fully soaked, then roll the fabric twice on the pressure dyeing machine, and then bake the fabric at 100°C for 8 minutes.

[0019] Ultrasonic water solvent is used to extract natural dyes from walnut green peel. The extraction process is as follows: take an appropriate amount of crushed walnut green peel, use water as solvent, ultrasonic power is 180W, temperature is 40°C, liquid-solid ratio is 10:1 ml / g, The extraction time was 20min, the pH value was 9, and the extraction rate was 11.8%.

[0020] The dyeing process of walnut green bark natural dyes is as follows: the dye concentration is 8%, the bath ratio is 30:1, the dyeing is carried out at room temperature, the heating rate is 1°C / min, the temperature is raised to 80°C, and the heat preservation is 100min. Add 6% (weight to fabric) sodium chloride and keep warm for 20-60 minutes, then add 6% (weight to fabric) trisodium...

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PUM

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Abstract

The invention relates to a dyeing method for dyeing cellulose fibers with natural dyes from walnut green husks. The steps include: pre-treating the fabric with chitosan to increase its hygroscopic and antibacterial performance, and using ultrasonic water solvent method to dye the walnut green husk dye solution. The extraction and fabric dyeing are carried out to improve the extraction efficiency, and then the fabric is fixed and finished, and the color is fixed by soaping to obtain a uniformly dyed, natural, non-toxic, and certain antibacterial fabric. The dyeing process of the invention is simple and feasible, natural and non-toxic, low in dyeing cost and broad in market prospect.

Description

technical field [0001] The invention relates to the application of a natural plant dye, in particular to a dyeing method for dyeing cellulose fibers with a natural dye from walnut green husk. Background technique [0002] The disadvantages of synthetic dyes are becoming more and more obvious with the enhancement of people's health care and environmental protection awareness. The affinity between natural dyes and the environment and the comfort and safety of clothing dyed with natural dyes are more and more popular among consumers and dyeing workers. Get to know each other again. Affected by domestic and foreign consumption trends such as "returning to nature", "returning to nature" and "low-carbon environmental protection", it is very valuable and necessary to use natural dyes to dye cellulose fiber fabrics. In addition, many natural dyes also have medicinal health care, spices, etc. A variety of effects make the dyed fabrics have certain health care and medical functions f...

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): D06P3/60D06P1/34D06M15/03C09B61/00D06M101/06
Inventor 徐红惠晶闫文君
Owner XINJIANG UNIVERSITY