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Biological-enzyme pretreatment method for regenerated cellulose fibers

A technology of regenerated cellulose and biological enzymes, which is applied in fiber treatment, ultrasonic/sonic fiber treatment, physical treatment, etc., can solve the problems of difficult control of washing, large damage to fabric fibers, and high COD emissions, and is conducive to environmental protection, resistant to Good abrasiveness and other indicators, and the effect of reducing pollution emissions

Pending Publication Date: 2019-05-03
TAIHE SANBAO TONGDA TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional production process has restricted the further development of regenerated cellulose fiber due to factors such as environmental pollution, high energy consumption, and complex production process.
[0003] Most printing and dyeing manufacturers use alkali desizing to remove the size on the fabric. The desizing rate of this method is low, and the remaining size needs to be further removed by scouring; at the same time, it is difficult to control the washing after desizing. Desizing cannot destroy the macromolecules of the size. If the washing is not sufficient, the size will be re-contaminated and the desizing effect will be reduced.
In addition, the traditional pretreatment process has great damage to fabric fibers, high COD emissions, high energy consumption, and excessive use of chemicals leads to a heavy burden on sewage treatment

Method used

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  • Biological-enzyme pretreatment method for regenerated cellulose fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The invention provides a kind of viscose fiber biological enzyme pretreatment method, comprises the following steps:

[0027] Step 1, pretreatment: put the viscose fiber to be treated into the deionized aqueous solution at room temperature, add ammonia water to adjust the pH value of the deionized aqueous solution to 7.0, turn on the stirring device to stir, so that the deionized aqueous solution and the viscose fiber are mixed evenly, Then raise the temperature to 55°C and keep it warm for 30 minutes; then raise the temperature of the solution in the device to 65°C, keep the viscose fiber below the liquid level, continue to keep warm for 30 minutes, and then drain the solution; wash the viscose fiber with gradient cooling;

[0028] Step 2, biological treatment: control the temperature at 30°C, mix alkaline pectinase and amylase and add sodium lauryl sulfate to obtain an enzyme solution, put the enzyme solution in the device; turn on the stirring device to stir, and heat...

Embodiment 2

[0035] The invention provides a kind of viscose fiber biological enzyme pretreatment method, comprises the following steps:

[0036] Step 1, pretreatment: put the viscose fiber to be treated into the deionized aqueous solution at room temperature, add ammonia water to adjust the pH value of the deionized aqueous solution to 8.0, turn on the stirring device to stir, so that the deionized aqueous solution and the viscose fiber are mixed evenly, Then raise the temperature to 65°C and keep it warm for 45 minutes; then raise the temperature of the solution in the device to 90°C, keep the viscose fiber below the liquid level, continue to keep warm for 45 minutes, and then drain the solution; wash the viscose fiber with gradient cooling;

[0037]Step 2, biological treatment: control the temperature at 40°C, mix alkaline pectinase and amylase and add sodium lauryl sulfate to obtain an enzyme solution, put the enzyme solution in the device; turn on the stirring device to stir, and heat ...

Embodiment 3

[0044] The invention provides a kind of viscose fiber biological enzyme pretreatment method, comprises the following steps:

[0045] Step 1, pretreatment: put the viscose fiber to be treated into the deionized aqueous solution at room temperature, add ammonia water to adjust the pH value of the deionized aqueous solution to 7.5, turn on the stirring device to stir, so that the deionized aqueous solution and the viscose fiber are mixed evenly, Then raise the temperature to 60°C and keep it warm for 35 minutes; then raise the temperature of the solution in the device to 70°C, keep the viscose fiber below the liquid level, continue to keep warm for 35 minutes, and then drain the solution; wash the viscose fiber with gradient cooling;

[0046] Step 2, biological treatment: control the temperature at 35°C, mix alkaline pectinase and amylase and add sodium lauryl sulfate to obtain an enzyme solution, put the enzyme solution in the device; turn on the stirring device to stir, and heat...

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Abstract

The invention provides a biological-enzyme pretreatment method for regenerated cellulose fibers, and belongs to the technical field of spinning. The biological-enzyme pretreatment method for the regenerated cellulose fibers comprises the steps of pretreatment, biological treatment, bleaching treatment, washing treatment, drying and the like, wherein biological treatment is carried out in an ultrasonic-wave environment through enzyme liquid of alkaline pectinase and amylase. By means of the method, it can be guaranteed that various physicochemical performance indexes such as the desizing rate,whiteness, wear resistance and capillary-effect radial direction of the regenerated cellulose fibers can reach or even exceed those of traditional technologies; meanwhile, the treatment method has a mild acting condition, has no damage to fabric, lowers the energy consumption, is environmentally friendly, and has a good market prospect.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a biological enzyme pretreatment method for regenerated cellulose fibers. Background technique [0002] With the rapid development of society, non-renewable energy resources such as petroleum are becoming increasingly scarce. Affected by factors such as health and environmental awareness, people have begun to pay attention to cellulose, a renewable resource. Regenerated cellulose fibers have good development prospects due to their advantages in raw materials and performance. The traditional production process has restricted the further development of regenerated cellulose fiber due to factors such as environmental pollution, high energy consumption, and complex production process. [0003] Most printing and dyeing manufacturers use alkali desizing to remove the size on the fabric. The desizing rate of this method is low, and the remaining size needs to be further removed by sco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M10/10D06M10/02D06L4/13D06L4/12D06L1/14
Inventor 马晓飞张丽袁鹏张志成
Owner TAIHE SANBAO TONGDA TEXTILE
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