Immersion method bioenzyme pretreatment technology of hemp and its cospinned fabric

A technology of blended fabrics and biological enzymes, which is applied in the fields of biochemical fiber treatment, fiber treatment, textiles and papermaking, etc., can solve the problems of large damage to fabric fibers, pollute the ecological environment, and high chemical oxygen consumption, and achieve small strength loss and pollution emissions. The effect of reducing and feeling good

Inactive Publication Date: 2006-01-11
SHAZHOU PROFESSIONAL INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above-mentioned pretreatment process can make the fabric achieve a better pretreatment effect, it also has many shortcomings, mainly including: under the action of high-temperature strong alkali and high-concentration chlorine bleaching, the damage of fabric fibers is relatively large, and strong alkali degrades The wastewater discharged from pulp scouring has high chroma, strong alkalinity, PH value of over 12, and chemical oxygen consumption of over 10,000ppm; chlorine bleaching will produce dioxins, chloroform and other organic chlorides that are harmful to living organisms. Pollution of the ecological environment; in addition, in the process of desizing and scouring fabrics, chlorine bleaching and oxygen bleaching with caustic soda and surfactants, a large amount of water must be used for multiple cleanings after each process

Method used

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1: 27.8tex * 27.8tex, 236 * 236, ramie fine cloth, pulp content rate 8.5%.

[0011] Hot water pretreatment: two dipping and boiling, the water temperature is about 75 to 90 degrees Celsius;

[0012] When soaking in biological enzyme composite treatment solution, the components of the treatment solution include: the mass ratio of desizing enzyme to fabric is 1.0%, the mass ratio of pectinase to fabric is 0.5%, and the mass ratio of cellulase to fabric is 0.5%. The mass ratio is 1.5%, the mass ratio of xylanase relative to the fabric is 1.0%, the mass ratio of the nonionic surfactant relative to the fabric is 1.0%, the pH value is 6.5-8.0, and the mass ratio of the fabric to the treatment solution is 1 The ratio is 15, the temperature is 65 degrees Celsius, and the treatment time is 60 minutes; after the treatment, the temperature is raised to between 90 and 99 degrees Celsius, and the enzyme is deactivated for 10-20 minutes, and then fully washed with water; ...

Embodiment 2

[0017] Example 2: 53tex×53tex, 215×195, pure linen fabric.

[0018] Hot water pretreatment: two soaking and boiling, the water temperature is between 75 and 90 degrees Celsius;

[0019] When soaked in biological enzyme composite treatment solution, the components of the treatment solution include: the mass ratio of desizing enzyme to fabric is 1.5%, the mass ratio of pectinase to fabric is 0.8%, the mass ratio of cellulase to fabric is The mass ratio is 1.5%, the mass ratio of xylanase relative to the fabric is 1.5%, the mass ratio of the nonionic surfactant relative to the fabric is 1.0%, the pH value is 6.5-8.0, and the mass ratio of the fabric to the treatment solution is 1 The ratio is 15, the temperature is 80 degrees Celsius, and the treatment time is 30 minutes; after the treatment, the temperature is raised to between 90 and 99 degrees Celsius, and the enzyme is deactivated for 10-20 minutes, and then fully washed with water;

[0020] When immersing the compound treat...

Embodiment 3

[0024] Embodiment 3: 53.1tex×53.1tex, 200×185, linen / cotton (55 / 45) blended flat cloth.

[0025] Hot water pretreatment: two soaking and boiling, the water temperature is between 75 and 90 degrees Celsius;

[0026] When soaking in biological enzyme compound treatment solution, the components of the treatment solution include: the mass ratio of desizing enzyme to fabric is 2.0%, the mass ratio of pectinase to fabric is 1.0%, the mass ratio of cellulase to fabric is The mass ratio is 1.5%, the mass ratio of xylanase relative to the fabric is 2.0%, the mass ratio of the nonionic surfactant relative to the fabric is 3.0%, the pH value is 6.5-8.0, and the mass ratio of the fabric to the treatment solution is 1 The ratio is 15, the temperature is 80 degrees Celsius, and the treatment time is 45 minutes; after the treatment, the temperature is increased to between 90 and 99 degrees Celsius, and the enzyme is deactivated for 10-20 minutes, and then fully washed with water;

[0027] W...

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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PUM

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Abstract

The present invention relates to an enzymatic pretreatment process of bast and its blended fabric impregnation method. It successively includes the following steps: firstly, adopting hot water with 75-90deg.C to make pretreatment, then adopting impregnation bio-enzyme composite treatment liquor to make uncooking one-bath process, inactivating enzyme and water-washing, utilizing compound treatment liquor to make pretreatment before steep bleaching process, finally adopting steep hydroperoxide bleaching liquor to make treatment and water-washing.

Description

technical field [0001] The invention belongs to the technical field of dyeing and finishing in the textile industry, and relates to a pretreatment process for fabric dyeing and finishing, in particular to a pretreatment process for hemp or its blended fabrics by dipping biological enzymes. Background technique [0002] Both hemp fiber and cotton fiber are natural cellulose fibers. Compared with cotton fiber, hemp fiber has 15%-25% lower cellulose content, 5%-6% higher lignin content, and 0.9%-1.8% higher waxy content. These natural cellulose fibers, in addition to their own natural impurities, also have additional impurities such as various pulps and oil stains contaminated during processing. In the weaving process, since the warp yarns of the fabric must be sized before weaving, there are many additional impurities remaining in the woven fabric, such as polyvinyl alcohol slurry, starch slurry and other sizing. The presence of these impurities seriously affects the wetting ...

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 Applications(China)
IPC IPC(8): D06M16/00
Inventor 万清余史志陶
Owner SHAZHOU PROFESSIONAL INST OF TECH
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