Silk weighting method for fixing sericin by sol-gel process
A gel method and degumming silk technology, applied in the field of silk weight gain, to achieve the effect of reducing water solubility, good fixation, and overcoming high water solubility
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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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