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A surface treating process for enhancing humidity and strength of viscose fibers

A viscose fiber and surface treatment technology, applied in fiber treatment, plant fiber, textiles and papermaking, etc.

Inactive Publication Date: 2016-05-18
QINGDAO BAIJIANCHENG ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem to be solved in the present invention is to convert the hydrophilic group on the surface of the viscose fiber into a hydrophobic group after the surface of the viscose fiber is activated, and keep the firmness of the hydrophobic group

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Get 0.1 part of potassium permanganate (parts by weight, water is 100 parts), add deionized water at 40 e Stir 1min under ℃~50 ℃, make fiber surface activation treatment liquid stand-by;

[0023] (2) Take 50 parts of acrylamide, add deionized water and stir at 60°C to 80°C for 5 minutes, use sulfuric acid to adjust the pH value to 3.5, and make a fiber wet strength enhancement surface treatment solution for use;

[0024] (3) Take 45 parts of glutaraldehyde and add it into deionized water and stir for 5 minutes at 60°C to 80°C to prepare the surface chelation treatment solution

[0025] use;

[0026] (4) Place pretreated fibers such as cleaning, degumming, and drying in the treatment tank of the surface activation treatment solution made in (1) above, and dip for 20 to 30 minutes at 40°C to 50°C;

[0027] (5) The fibers after the impregnation treatment are drawn out of the treatment tank, washed until there is no obvious pink, and passed through the treatment tank ...

Embodiment 2

[0031] According to the process of Example 1, take 0.2 parts of potassium permanganate, 50 parts of polyhexamethylene adipate; then take 45 parts of glutaraldehyde, and carry out wet strength enhancement treatment on the surface of viscose fiber to obtain high wet strength of viscose fiber.

Embodiment 3

[0033] According to the process method of Example 1, take 0.2 parts of potassium permanganate and 50 parts of polyacrylamide with a low degree of polymerization; then take 45 parts of glutaraldehyde, and carry out wet strength enhancement treatment on the surface of viscose fiber to obtain high wet strength polyacrylamide Viscose fiber.

[0034] In each of the above-mentioned embodiments, the activity of free radicals is controlled by adjusting the pH value and reaction temperature, thereby controlling the reaction rate of graft polymerization, and then controlling the degree of progress of the reaction by controlling the reaction time and the concentration of reactants, and finally To achieve the purpose of controlling the thickness of the surface coating layer and the degree of crosslinking.

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Abstract

A surface treating process for enhancing humidity and strength of viscose fibers is disclosed. The process is characterized by including a step of adding deionized water into a surface activating agent to prepare a surface activating solution, a step of adding deionized water into a humidity-strength enhancing agent, dispersing, stirring, and adjusting the pH value with sulfuric acid to prepare a humidity-strength enhancing treating solution, a step of adding deionized water into a chelating agent and stirring to prepare a surface chelating treating solution, a step of adding pretreated fibers into a treating tank containing the surface activating solution and dipping, a step of taking the dipped fibers out of the treating tank, and subjecting the fibers to graft copolymerization in a treating tank containing the humidity-strength enhancing treating solution, a step of treating the fibers in a treating tank containing the surface chelating treating solution, a step of conveying the fibers subjected to chelating treatment to a high-temperature treating chamber, and performing high-temperature curing treatment, and a step of washing and drying to obtain the viscose fibers with high humidity and high strength. The treated fibers have durable high humidity and strength and are washable. The process is free of pollution, free of public nuisance, and beneficial to environment protection and human health.

Description

technical field [0001] The invention relates to a viscose fiber surface treatment process, in particular to a viscose fiber wet strength enhancement surface treatment process for regenerated cellulose fiber surface treatment. Background technique [0002] Viscose fiber has great development potential due to its special handle, luster and other advantages. At present, the main development direction of viscose fiber is concentrated in two aspects of environmental protection and new varieties. The research of environmental protection is to reduce the cost of treatment and the pollution to the environment by controlling the discharge of waste gas, wastewater and liquid in industrial production. For example, the invention patent of "Total Waste Gas Treatment Method and Device for Viscose Fiber Production" with publication number 1070129 is mainly focused on the new solvent lyocell project, high strength and high wet modulus, high crimp cellulose staple fiber project, viscose fila...

Claims

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Application Information

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IPC IPC(8): D06M23/00D06M14/04D06M11/50D06M13/123D06M15/285D06M15/59D06M101/06
Inventor 张栋
Owner QINGDAO BAIJIANCHENG ENVIRONMENTAL PROTECTION TECH CO LTD
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