Method for manufacturing seat cushion with jute fibre

A technology of jute fiber and jute, which is applied in the field of seat cushion manufacturing, can solve the problems of itching, not very comfortable, thick jute fiber, etc., and achieve the effects of facilitating direct contact, improving acupuncture performance, and improving puffing effect.

Active Publication Date: 2012-05-09
SUZHOU MOWEI NATURAL FIBER MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 During use, people usually feel itching, not very comfortable, so it is necessary to remove the lignin impurities in jute as much as possible, and it is difficult to obtain ideal degumming and lignin removal by using common degumming methods. As a result, this greatly restricts the application of jute in daily necessities. At present, jute fiber can only be used to make sacks, hemp rope and other products with very low added value.
"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 Manufacture of daily necessities that come into close contact with the human body, such as seat cushions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 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 4.0, 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 8.5, raise the temperature to 70°C, and keep it for 20 minutes; then take the jute out of the solution and store it 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 inac...

Embodiment 2

[0023] 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; The pH value of the diluted solution is adjusted to 4.5 with acetic acid and sodium bicarbonate, and the temperature is raised to 40° C. and kept for 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 s...

Embodiment 3

[0026]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 the aqueous solution; the pH value of the diluted solution is adjusted to 4.5 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

The invention relates to a manufacturing method of a seat cushion made of jute fiber. The method comprises the following steps: firstly, the soaking is performed to jute in compound enzyme water solution prepared by pectase and laccase, and the weight ratio of the compound enzyme water solution and the jute is 12 : 1 to 40 : 1; the pH value of the compound enzyme water solution is firstly adjusted into 4.0 to 6.5, and the compound enzyme water solution is warmed up to 35 to 65 DEG C, and the temperature is kept for 20 to 120 minutes; and then pH value of the compound enzyme water solution is adjusted to more than 8.0 and less than and equal to 9.5, and the compound enzyme water solution is kept for 20 to 120 minutes at 14 to 70 DEG C; then the enzyme inactivation process is performed to the jute processed through the compound enzyme; secondly, jute fiber after being degumed is mixed with chemical fiber, and carding, mesh placement and needling are performed to the chemical fiber; thirdly, the mixed fiber after being needled is thermally pressed and molded; fourthly, a sleeve body is coated. The seat cushion manufacuted by the invention is soft and comfortable, has no urtication feeling when being used by people, and has good antibiosis and anti-acarine performance.

Description

technical field [0001] The invention relates to a method for manufacturing a seat cushion, in particular to a method for manufacturing a seat cushion from jute fiber. Background technique [0002] At present, soft seat cushions made of mixed fibers such as tussah silk, cotton, chemical fiber or kapok have the characteristics of softness and comfort. It is easy to make the user feel damp, which is not very comfortable, especially when used in summer, this feeling will be very obvious, especially when children and patients use it, the wet seat cushion is not easy to dry, which is not conducive to the body of children or patients healthy. And the seat cushion made of tussah silk, cotton fiber, chemical fiber or kapok is easy to breed bacteria or other microorganisms, which is very unfavorable to people's health. Moreover, chemical fibers are non-renewable, poor in environmental protection and high in cost. Because hemp fiber has good moisture absorption and air permeability,...

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): B68G3/00D01C1/02C12S3/00
Inventor 刘国忠张振华
Owner SUZHOU MOWEI NATURAL FIBER MATERIAL
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