Degumming method of silk

A silk degumming and silk technology, applied in the field of silk degumming, can solve the problems of inability to remove grease impurities, difficult to adjust, affecting fiber quality processing, etc., so as to improve physical and mechanical strength, reduce elongation loss at break, and reduce loss of breaking strength. Effect

Inactive Publication Date: 2013-12-18
SUZHOU SANHE KAITAI COLORED THREAD WEAVING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Acid degumming is not easy to control, and the PH value is too high or too low to damage the fiber, but the PH value is not easy to adjust, and the oil and impurities cannot be removed during degumming, and the cost is high. In addition, the color of silk after degumming is not ideal, and it is easy to produce volatile , irritating gas, easy to damage the skin; as a traditional method of silk degumming, soap base degumming mainly makes sericin swollen and then removed. The silk fiber obtained after soap base degumming is soft, elastic and shiny. However, the degumming time is long, so it is not suitable for open-width degumming. The

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Take 5g of silk and tie it with polyester thread, place it in 0.05g / L anhydrous Na 2 CO 3 In the solution, heat it to 90-100°C in an electric thermostatic furnace, keep it warm for 2 hours, then adjust the pH value of the solution to 9 with ammonia water, apply ultrasonic waves to the solution at 70-80°C, the power of the ultrasonic waves is 400W, and the frequency is 40kHz. Ultrasonic time is 90 minutes; then, it is washed with deionized water, and the washed silk is dried to obtain degummed silk. The drying temperature is 80-90° C. and the drying time is 2 hours. The breaking strength, breaking elongation and breaking elongation of silk were measured by YG(B)001A electronic single fiber strength machine. After calculation, the breaking strength loss of silk was 28.32cN, the breaking elongation loss rate was 26.28%, and the degumming rate was 28.32cN. was 85.3%.

Embodiment 2

[0019] Take 5g of silk and tie it with polyester thread, place it in 0.05g / L anhydrous Na 2 CO 3 In the solution, heat it to 90-100°C in an electric constant temperature furnace, keep it warm for 3 hours, then adjust the pH value of the solution to 11 with ammonia water, apply ultrasonic waves to the solution at 70-80°C, the power of the ultrasonic waves is 400W, and the frequency is 40kHz. Ultrasonic time is 120 minutes; then, it is washed with deionized water, and the washed silk is dried to obtain degummed silk. The drying temperature is 80-90° C. and the drying time is 1 hour. The breaking strength, breaking elongation and breaking elongation of silk were measured by YG(B)001A electronic single fiber strength machine. After calculation, the loss of silk breaking strength after degumming was 26.93cN, the loss rate of breaking elongation was 27.54%, and the degumming rate was 86.8%.

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PUM

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Abstract

The invention discloses a degumming method of silk, which belongs to the technical field of silk. The degumming method comprises the following steps of preparing the silk, tying the silk with polyester threads, putting the silk in a Na2CO3 solution with certain concentration, heating, boiling, adjusting the pH value of the solution to 9-11, and applying ultrasonic waves to the solution; and washing with deionized water, removing sericin, and drying the degummed silk. The degumming method disclosed by the invention has the advantages that by changing the degumming condition and applying the ultrasonic waves, the breaking strength loss and the breaking elongation of the degummed silk are reduced, and the physical and mechanical strength of the degummed silk is effectively improved; the time is short, the cost is low and the degumming efficiency is high.

Description

Technical field: [0001] The invention relates to the technical field of silk, in particular to a silk degumming method. Background technique: [0002] Silk is a continuous long fiber formed by cocooning and cocooning. It is also called "natural silk". Like wool, it is one of the earliest animal fibers used by humans. It has been known as the "fiber queen" since ancient times. It is precisely Silk has a unique structure and amino acid composition. Silk fiber exhibits elegant luster, comfortable feel, and good moisture absorption, moisture release and moisturizing functions, making it popular as a textile material for a long time. [0003] Silk is composed of two monofilaments. Each monofilament is composed of silk fibroin and sericin. Sericin has a protective effect on silk fibroin. It is an important process in silk printing and dyeing processing. The quality of degumming directly affects the subsequent finishing, thus affecting its wearing performance. [0004] At present...

Claims

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Application Information

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IPC IPC(8): D01C3/02
Inventor 魏天堂
Owner SUZHOU SANHE KAITAI COLORED THREAD WEAVING CO LTD
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