Method for degumming jute by using complex enzyme
A compound enzyme and compound enzyme water technology, which is applied in the chemical post-treatment of fibers, textile and paper making, fiber treatment, etc., can solve the problems of unsatisfactory mechanical properties and physical properties of jute fiber strength, elongation at break, etc. Spinnability, damage reduction, direct contact effect
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Embodiment 1
[0019] Unpack the jute purchased from the market and divide it into small handfuls of about 0.5 kg; and perform pretreatment in a water bath, the temperature of the water bath is 65°C, and the holding time is 2 hours;
[0020] Pectinase and laccase are formulated into compound enzyme by weight ratio 3: 7, get the compound enzyme prepared by weight ratio 0.8: 100 with jute, and dilute with water to 15 times of jute weight, use the compound enzyme after dilution The aqueous solution impregnates the jute;
[0021] Use acetic acid and baking soda to adjust the pH of the diluted solution to 5.5, raise the temperature to 55°C, and keep it for 25 minutes;
[0022] Then use baking soda to adjust the pH of the solution to 7.5, raise the temperature to 60°C, and keep it for 25 minutes;
[0023] Then jute is taken out from solution and piled up to carry out synergistic stacking process, and the time of synergistic stacking process is 24 hours;
[0024] The jute after the synergistic st...
Embodiment 2
[0027] The jute bought by the market is unpacked and divided into small handfuls of about 0.5 kilograms; and acid bath and water bath pretreatment are carried out, the acid used is the concentrated sulfuric acid with a concentration of more than 90%, and the temperature of the water bath is 30°C. The holding time is 1 hour;
[0028] Pectinase and laccase are formulated into compound enzyme by weight ratio 9: 1, get the compound enzyme prepared by weight ratio 0.9: 100 with jute, and dilute with water to 15 times of jute weight, use the compound enzyme after dilution The aqueous solution impregnates the jute;
[0029] Use acetic acid and baking soda to adjust the pH value of the diluted solution to 5.0, raise the temperature to 60°C, and keep it for 50 minutes;
[0030] Then use baking soda to adjust the pH of the solution to 7.5, raise the temperature to 65°C, and keep it for 40 minutes;
[0031] Then jute is taken out from solution and piled up to carry out synergistic stac...
Embodiment 3
[0035] The jute bought in the market is unpacked and divided into small handfuls of about 0.5 kilograms; and the jute is carried out to acid bath pretreatment, and the used acid is acetic acid with a concentration of more than 90%.
[0036] Pectinase and laccase are formulated into compound enzyme by weight ratio 1: 1, get the compound enzyme prepared by weight ratio 0.6: 100 with jute, and dilute with water to 15 times of jute weight, use the compound enzyme after dilution The aqueous solution impregnates the jute;
[0037] Use acetic acid and baking soda to adjust the pH value of the diluted solution to 5.0, raise the temperature to 55°C, and keep it for 40 minutes;
[0038] Then use baking soda to adjust the pH of the solution to 8.0, raise the temperature to 60°C, and keep it for 50 minutes;
[0039] Then jute is taken out from solution and piled up and carries out synergistic stacking process, and the time of synergistic stacking process is 10 hours;
[0040] Wash the j...
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