Method for degumming jute by using complex enzyme
A compound enzyme, compound enzyme water technology, applied in the chemical post-treatment of fibers, textiles and papermaking, fiber treatment and other directions, can solve the problems of jute fiber strength, elongation at break mechanical properties and physical properties are not ideal, etc. The effect of holding time, weakening the joint force, and facilitating direct contact
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Embodiment 1
[0020] 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;
[0021] Pectinase and laccase are formulated into compound enzyme by weight ratio 3: 7, get the compound enzyme prepared by weight ratio 0.5: 100 with jute, and dilute with water to 12 times of jute weight, use the compound enzyme after dilution The aqueous solution impregnates the jute;
[0022] Use acetic acid and baking soda to adjust the pH value of the diluted solution to 5.5, raise the temperature to 55°C, and keep it for 50 minutes; then use baking soda to adjust the pH value of the solution to 7.5, raise the temperature to 60°C, and keep it for 15 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 ...
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 5: 100 with jute, and dilute with water to 40 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 25 minutes; then use baking soda to adjust the pH value of the solution to 7.5, raise the temperature to 65°C, and keep it for 16 minutes;
[0030] Then jute is taken out from solution and piled up to carry out synergistic stacking p...
Embodiment 3
[0034] The jute purchased from the market is unpacked and divided into small handfuls of about 0.5 kilograms; and the jute is carried out to an acid bath pretreatment, and the used acid is acetic acid with a concentration of more than 90%.
[0035] Pectinase and laccase are formulated into compound enzyme by weight ratio 1: 1, get the compound enzyme prepared by weight ratio 1: 100 with jute, and dilute with water to 20 times of jute weight, use the compound enzyme after dilution The aqueous solution impregnates the jute;
[0036] 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 30 minutes; then use baking soda to adjust the pH value of the solution to 8.0, raise the temperature to 70°C, and keep it for 17 minutes;
[0037] 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;
[0038] The jute...
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