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Silk weighting method for fixing sericin by sol-gel process

A technology of gel method and degumming silk, which is applied in the field of silk weight gain to achieve good fixation, improve utilization rate, and reduce pollution

Inactive Publication Date: 2008-12-31
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the method for increasing the weight of silk by using the sol-gel method to fix sericin has not been reported so far.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1, a kind of silk weight gain method that adopts sol-gel method to fix sericin, carries out following steps successively:

[0031] 1), impurity removal and cleaning treatment of silk;

[0032] Weigh 50 g of silk raw silk, partially degummed in 4% 2709 protease solution, the reduction rate is 9%, and clean it with water after taking it out;

[0033] 2), preparation of sol finishing solution:

[0034] Fully mix 0.4L tetraethyl silicate (TEOS) and 0.5L absolute ethanol, add 0.1L hydrochloric acid aqueous solution under stirring with a magnetic stirrer, and this hydrochloric acid aqueous solution contains 0.1mol HCL; the above raw material components are uniform After mixing, hydrolyze at a constant temperature of 60°C for 6 hours under stirring to obtain a uniform and transparent sol finishing solution;

[0035] 3) Fixing finishing of sericin:

[0036] Put the partially degummed silk fiber obtained in step 1) into the above-mentioned sol finishing liquid, and...

Embodiment 2

[0041] Embodiment 2, a method for increasing the weight of silk adopting the sol-gel method to fix sericin, the following steps are carried out successively:

[0042] 1), impurity removal and cleaning treatment of silk;

[0043] Weigh 100g of silk gray silk, remove impurities and pigments with dilute alkali, then soak in 3% softener KC until soft, take it out and clean it;

[0044] 2), preparation of sol finishing solution:

[0045] Mix 0.1L of tetraethyl silicate (TEOS), 0.8L of absolute ethanol and 0.05L of γ-aminopropyltriethoxysilane as a coupling agent, and add 0.05L of Aqueous nitric acid solution containing 0.3mol of HNO 3 ; After the above raw material components are uniformly mixed, they are hydrolyzed at a constant temperature of 25°C for 16 hours under stirring to obtain a uniform and transparent sol finishing solution;

[0046] 3) Fixing finishing of sericin:

[0047] Put the non-degummed silk fabric obtained in step 1) into the above-mentioned sol finishing li...

Embodiment 3

[0051] Embodiment 3, a kind of silk weight gain method that adopts sol-gel method to fix sericin, carry out following steps successively:

[0052] 1), impurity removal and cleaning treatment of silk;

[0053] Weigh 100g of silk gray silk, first partially degummed in a solution containing 1g / L 209 detergent and 1.2g / L soda ash, the reduction rate is 11.5%; Reductive bleaching in the bleaching solution of additives such as JFC, and finally take it out and clean it;

[0054] 2), preparation of sol finishing solution:

[0055] Fully mix 0.3L of tetraethyl silicate (TEOS), 0.4L of absolute ethanol and 0.12L of γ-glycidyloxypropylsilane as a coupling agent, and add 0.18L of hydrochloric acid under stirring with a magnetic stirrer Aqueous solution, the hydrochloric acid aqueous solution contains 0.5mol of HCL; after the above raw material components are uniformly mixed, they are hydrolyzed at a constant temperature of 70°C for 4 hours under stirring to obtain a uniform and transpar...

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Abstract

The invention discloses a silk weight gaining method adopting a sol-gel method to fix sericin, which includes the following steps of: 1) impurity removal and clearing treatment of silk; 2) preparation of finishing liquid of sol; and 3) fixation and finishing of sericin: silk made by the step 2 is fixed and finished by finishing liquid of sol according to a secondary leaching and rolling method so that liquid carrying rate of silk can reach sixty percent to one hundred percent; then finished silk is aged for zero to twenty four hours at normal temperature; finally the silk is baked for ten to sixty minutes at a temperature between 120 and 180DEG C. The silk weight gaining method has the advantages of safety, environmental protection and effective fixation of silk.

Description

technical field [0001] The invention belongs to the technical field of textile chemistry, and in particular relates to a method for increasing the weight of silk by adopting a sol-gel method to fix sericin. Background technique [0002] In the traditional silk industry, people mainly use the inner silk fibroin part of silk fiber, while the outer sericin protein, which accounts for about 25% of the raw silk weight of silk, is removed in the refining stage and discharged together with wastewater; this sericin Protein has a high biochemical oxygen demand (BOD) in wastewater, which causes serious pollution to the environment and wastes sericin protein resources. Sericin has excellent skin affinity and hygroscopicity. If the water solubility of sericin can be reduced and sericin can be fixed, on the one hand, it can reduce the pollution of sericin protein to the environment; on the other hand, it can increase the weight of silk fiber and improve the quality of silk. Fiber perfor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/79D06M13/50D06M101/12
Inventor 林俊雄汪澜丁飞飞
Owner ZHEJIANG SCI-TECH UNIV
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