Method for manufacturing insole with jute fiber

The technology of jute fiber and insole is applied in the field of insole manufacturing, which can solve the problems of not being very comfortable, itching, tingling and the like, and achieve the effects of improving acupuncture performance, facilitating direct contact and improving puffing effect.

Active Publication Date: 2010-02-24
SUZHOU MOWEI NATURAL FIBER MATERIAL
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  • Claims
  • Application Information

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Problems solved by technology

But because the lignin content in jute is higher (up to 10-13%), several times higher than flax, makes jute fiber relatively thick, hard, not only makes the weaving of jute fiber, acupuncture performance poor, and contact with human body When in use, people usually feel tingling and not very comfortable. Therefore, it is necessary to remove lignin impurities in jute as much as possible when used as daily necessities such as clothing, and to apply common degumming methods to jute fibers. Degumming and lignin removal are difficult to achieve ideal results, which greatly restricts the application of jute in daily necessities. At present, jute fiber can only be used to make products with low added value such as sacks and hemp ropes.
"Journal of Tianjin Polytechnic University" in August 2005, Volume 24, No. 4 "Enzyme Treatment Effects on the Properties of Jute Fiber" studied the effects of cellulase, hemicellulase, ligninase and pectin depolymerase on jute fiber. The impact of treatment, but the main research of this paper is to use the above-mentioned various enzymes to treat jute fiber separately, even if it is the compound enzyme treatment mentioned therein, it is only to use laccase and hemicellulase and cellulase respectively. Composite, Chinese patent document CN1232691C discloses a kind of method that application compound enzyme is carried out degumming to jute, and this method carries out degumming process to jute fiber with the compound enzyme of pectinase and laccase, but said method is degummed to jute fiber lignin impurity The removal is not ideal enough, and the removal rate is only about 76%, and the lignin content in the resulting jute fiber is still relatively high. When the products of this jute fiber are used to contact with human skin, people still have a tingling sensation, so it is not suitable for Manufacturing insoles and other daily necessities that are in close contact with the human body

Method used

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  • Method for manufacturing insole with jute fiber

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The jute bought by the market is unpacked and divided into small handles of about 0.5 kg; and water bath pretreatment is carried out, the temperature of the water bath is 65 ℃, and the holding time is 2 hours; 3: 7 is mixed with compound enzyme, gets the compound enzyme prepared by weight ratio 0.5: 100 with jute, and dilutes with water to 12 times of jute weight, impregnates jute with the compound enzyme aqueous solution after dilution; Use acetic acid and small Adjust the pH value of the diluted solution with soda to 4.4, raise the temperature to 35°C, and keep it for 20 minutes; then use baking soda to adjust the pH value of the solution to 7.5, raise the temperature to 70°C, and keep it for 20 minutes; then take the jute out of the solution and pile it up In order to carry out the synergistic stacking treatment, the time for the synergistic stacking treatment is 24 hours; the jute after the synergistic stacking treatment is washed with hot water at 80°C for enzyme in...

Embodiment 2

[0022] 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 incubation time is 1 hour; the pectinase and laccase are formulated into a compound enzyme in a weight ratio of 9: 1, and the configured compound enzyme is taken in a weight ratio of 5: 100 with jute, and diluted with water to 40 times of jute weight, The jute is impregnated with the compound enzyme aqueous solution after dilution; Regulate the pH value of the diluted solution with acetic acid and baking soda to be 4.9, be warming up to 40 ℃, keep 120 minutes; 55 ℃, keep 40 minutes; Then jute is taken out from the solution and piled up to carry out synergistic stacking treatment, the time of synergistic stacking treatment is 6 hours; The jute after synergistic stacking treatment is...

Embodiment 3

[0025] 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%. 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 15 times of jute weight, use the compound enzyme after dilution The jute is impregnated with an aqueous solution; the pH value of the diluted solution is adjusted to 4.6 with acetic acid and baking soda, the temperature is raised to 55°C, and kept for 40 minutes; then the pH value of the solution is adjusted to 8.5 with baking soda, and the temperature is raised to 50°C, and kept for 50 minutes Then the jute is taken out from the solution and piled up for synergistic stacking, and the time for synergistic stacking is 10 hours; the jute after the synergistic stacking is clea...

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Abstract

A method for manufacturing insoles by jute fibers comprises treating jute fibers with the complex enzyme de-gelatinizing, wherein, the complex enzyme de-gelatinizing treatment uses complex enzyme aqueous solution which is formulated by pectase and laccase to provide the de-gelatinizing treatment to jutes, adjusting the pH value of the complex enzyme aqueous solution to be more than or equal to 4.0but less than 5.0 when the complex enzyme de-gelatinizing treatment is carried out, elevating the temperature to 35 DEG C to 65 DEG C for 20-120 minutes, and then adjusting the pH value of the solution to be 7.5 to 9.5, keeping the temperature under 40 DEG C to 70 DEG C for 20-120 minutes, enzyme-devitalizating the jutes which are treated by the complex enzyme, mixing the de-gelatinized jute fibers with the chemical fibers, carding, net-spreading, and needling the mixed fibers, hot-pressing the needled mixed fibers and molding. The insole manufactured by the method of the invention is very comfortable when in use, and is not urticant in feeling when in use, good in bacteria repellency, not easily wormy, and strong in air permeability, hygroscopicity, and moisture character.

Description

technical field [0001] The invention relates to a method for manufacturing an insole, in particular to a method for making an insole from jute fiber. Background technique [0002] At present, people's commonly used insoles are usually made of cotton, chemical fibers, or waste materials such as spinning cotton and hemp, which have poor air permeability and hygroscopicity, and the moisture is not easy to volatilize after moisture absorption, and it is easy to make the user feel wet after using for a period of time. It feels not very comfortable, and it is easy to breed bacteria or other microorganisms, which is very unfavorable to people's health, and is prone to odor. In addition, chemical fiber raw materials are non-renewable, poor in environmental protection, and high in cost. Because hemp fiber has good moisture absorption and air permeability, low static electricity and good antibacterial properties, hemp products are more and more popular. Existing hemp products mainly...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A43B17/00D01C1/02C12S3/00
Inventor 刘国忠张振华袁荣华蒋绍斌
Owner SUZHOU MOWEI NATURAL FIBER MATERIAL
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