Degumming process of natural colorful silk

A colored silk and natural technology, applied in the field of silk, can solve the problems affecting the feel, color and comfort of silk fabrics, affecting the performance and use value of silk fabrics, and the loss of natural pigments, so as to achieve good glue fixing effect, reduce water solubility, prevent The effect of the loss of pigment

Inactive Publication Date: 2014-12-24
SUZHOU INSILK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pigments of natural colored silk are mainly distributed in sericin. If the conventional degumming method is adopted, most of the natural pigments will be lost with the sericin, which will cause the natural colored silk fabric to lose its natural color, greatly affecting the feel, color and luster of silk fabrics. Comfort, thus affecting its wearing performance and use value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Soak the natural colored raw silk in water at 40°C for 30 minutes to swell the sericin on the surface of the natural colored raw silk, then steam the natural colored raw silk, treat it at 100°C for 30 minutes, and clean it with deionized water.

[0025] Immerse the above-mentioned natural colored raw silk in a glutaraldehyde-citric acid solution, wherein the glutaraldehyde content is 0.02%, adjust the pH value to 3 with citric acid, and treat at 30°C for 5 hours to solidify the sericin on the surface of the natural colored raw silk, and use Rinse with deionized water.

[0026] Then soak the above-mentioned natural colored raw silk in a solution of 15% grafting agent WG, 3% ammonium persulfate and 40g / L of the amount of grafting agent sodium sulfate, bath ratio 1:50, adjust pH with citric acid 3, wash with deionized water;

[0027] Finally, soak the natural colored raw silk in 4g / L sodium carbonate and sodium bicarbonate solution, treat it at 90°C for 20 minutes, until ...

Embodiment 2

[0030] Soak the natural colored raw silk in water at 60°C for 20 minutes to swell the sericin on the surface of the natural colored raw silk, then steam the natural colored raw silk, treat it at 100°C for 30 minutes, and clean it with deionized water.

[0031] Immerse the above-mentioned natural colored raw silk in glutaraldehyde-citric acid solution, wherein the glutaraldehyde content is 3%, adjust the pH value to 5 with citric acid, and treat at 40°C for 0.5h, so that the sericin on the surface of the natural colored raw silk is cured, Rinse well with deionized water.

[0032] Then soak the above-mentioned natural colored raw silk in a solution of 5% grafting agent WG, 5% ammonium persulfate and 40g / L of the grafting agent dosage, the bath ratio is 1:50, adjust the pH with citric acid 5, wash with deionized water;

[0033] Finally, soak the natural colored raw silk in 6g / L sodium carbonate and sodium bicarbonate solution, treat it at 100°C for 10 minutes, until it is comple...

Embodiment 3

[0036] Soak the natural colored raw silk in water at 50°C for 25 minutes to swell the sericin on the surface of the natural colored raw silk, then steam the natural colored raw silk at 90°C for 40 minutes, and clean it with deionized water.

[0037] Immerse the above-mentioned natural colored raw silk in glutaraldehyde-citric acid solution, wherein the glutaraldehyde content is 1%, adjust the pH value to 4 with citric acid, and treat at 35°C for 1 hour, so that the sericin on the surface of the natural colored raw silk is cured. Rinse with deionized water.

[0038] Then soak the above-mentioned natural colored raw silk in the solution of 10% grafting agent WG, 4% ammonium persulfate and 40g / L of the grafting agent dosage, the bath ratio is 1:50, adjust the pH with citric acid For 4, wash it with deionized water;

[0039] Finally, soak the natural colored raw silk in 5g / L sodium carbonate and sodium bicarbonate solution, treat it at 95°C for 15 minutes until it is completely d...

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Abstract

The invention discloses a degumming process of natural colorful silk and belongs to the technical field of silk. The process comprises the following concrete steps: preprocessing natural colorful raw silk, swelling and steaming silk gum on the surface of the raw silk, curing by an acidic curing agent and a grafting agent, grafting pigment in the silk gum, and fully degumming in alkali liquid to obtain the natural colorful silk. According to the process, a very large hole is formed between the swelled silk gum, the pigment is transferred to fibroin from the silk gum by steaming, and the curing agent and the grafting agent enter the silk gum and the fibroin, so that the water solubility of the silk gum is reduced; the processed natural colorful silk is improved in mechanical strength, good in gumming effect and high in color retention rate, and retains the performances of the natural colorful silk, such as moisture retention, ultraviolet resistance, bacterial resistance and oxidation resistance.

Description

Technical field: [0001] The invention relates to the technical field of silk, in particular to a degumming process of natural colored silk. Background technique: [0002] In the modern age of advanced science and technology, people pay more and more attention to the quality of life, and low-carbon environmental protection is the current hot trend. In textile fabrics, the combination of advanced weaving and dyeing technology and functional finishing boxes endows fabrics with multi-directional functions. The color of textiles is mainly dyed by synthetic dyes, but most of the synthetic dyes are azo compounds, which are harmful to the human body, the waste water will affect the environment, and the residue on the clothes will affect the health of the body. [0003] The fabric made of natural colored silk as raw material saves the dyeing process, which is more natural, environmentally friendly and low-carbon. Silk is a protein fiber composed of 18 kinds of amino acids. It has s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01C3/02
Inventor 周继东
Owner SUZHOU INSILK CO LTD
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