Flax material viscose fibre pulp and preparation process of functional fibre thereof

A viscose fiber and hemp technology, applied in the field of fiber production, can solve the problems of uncomfortable wearing, inability to achieve antibacterial purposes, loss and other problems

Active Publication Date: 2005-01-05
HEBEI JIGAO CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of wearing and application, with the influence of physical and chemical effects such as wear and washing, its function will gradually decline and even be lost, and the real antibacterial purpose cannot be achieved. At the same time, the added medicament will also cause certain allergic reactions, thus May affect the wearer's skin and make it uncomfortable to wear

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Cooking: pretreatment: pH value: 9-12; liquid ratio: 1:2; holding temperature: 140°C; holding time: 120 minutes. Sodium sulfite cooking: amount of alkali: 10% of absolute dry pulp in terms of NaOH; liquid ratio: 1:4; sodium sulfite dosage: 5% of absolute pulp; AQ addition: 0.6‰ of absolute pulp; holding temperature: 160°C; holding time: 360 minutes.

[0038] (2) Chlorination: the amount of chlorine used for chlorination is 4% to the absolute dry pulp amount, the thick 4% of the chlorinated pulp, the chlorination time is 40 minutes, and the chlorination is normal temperature.

[0039] (3) Alkali refining: the amount of NaOH is 6% to the absolute dry pulp amount, the refining temperature is 70° C., and the time is 60 minutes.

[0040] (4) Xylanase pre-bleaching: the dosage of xylanase is 0.01% to the absolute dry pulp, the time is 90 minutes, the temperature is 40° C., and the pH value is 6.

[0041] (5) Bleaching: chlorine amount for bleaching: 2% for absolute dry ...

Embodiment 2

[0063] (1) Cooking: pretreatment: pH value 6-9; liquid ratio: 1:3; holding temperature: 130°C; holding time: 90 minutes. Sodium sulfite cooking: amount of alkali: 12% of absolute dry pulp based on NaOH; liquid ratio: 1:5; sodium sulfite dosage: 6% of absolute dry pulp; AQ addition: 0.4‰ of absolute dry pulp; holding temperature: 150 ℃; holding time: 300 minutes.

[0064] (2) Chlorination: the amount of chlorine used for chlorination is 2% to absolute dry pulp, the concentration of chlorinated pulp is 3%, the chlorination time is 50 minutes, and the chlorination is normal temperature.

[0065] (3) Alkali refining: the amount of NaOH is 4% to the absolute dry pulp amount, the refining temperature is 80° C., and the time is 80 minutes.

[0066] (4) Xylanase pre-bleaching: the dosage of xylanase is 0.02% to the absolute dry pulp, the time is 70 minutes, the temperature is 45° C., and the pH value is 7.

[0067] (5) Bleaching: bleaching chlorine amount: 3% for absolute dry pulp; ...

Embodiment 3

[0089] (1) Cooking: pretreatment: pH value 2-6; liquid ratio: 1:4; holding temperature: 120°C; holding time: 60 minutes. The second stage: Alkali consumption: 14% of absolute dry pulp in terms of NaOH; liquid ratio: 1:6; sodium sulfite dosage: 8% of absolute dry pulp; AQ addition: 0.2‰ of absolute dry pulp; holding temperature: 140°C; holding time: 240 minutes.

[0090] (2) Chlorination: the amount of chlorine used for chlorination is 1% of absolute dry pulp, the concentration of chlorinated pulp is 2%, the chlorination time is 60 minutes, and the chlorination is normal temperature.

[0091] (3) Alkali refining: the amount of NaOH is 2% to the absolute dry pulp amount, the refining temperature is 90° C., and the time is 100 minutes.

[0092] (4) Xylanase pre-bleaching: the dosage of xylanase is 0.03% to the absolute dry pulp, the time is 60 minutes, the temperature is 50° C., and the pH value is 9.

[0093] (5) Bleaching: bleaching chlorine amount: 5% for absolute dry pulp; ...

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Abstract

The invention relates to a process technique of producing viscose rayon pulp and functional rayon, and the flow includes: preparing hemp materials -> cutting materials -> screening -> washing materials -> preprocessing -> cooking -> extruding -> breaking -> desanding and concentrating -> chloridizing -> alkali refining -> bleaching -> acid treating -> desanding and concentrating -> making -> dipping -> pressing -> crushing -> ageing -> etiolating -> grinding -> dissolving -> mixing -> prefiltering -> filtering -> defoaming -> filtering -> spinning -> drawing -> cutting off -> after processing -> drying -> packaging. The viscose rayon has the characters: bacteriostasis, smoothness and forcefulness, coolness, fineness, brighness, high dry-wet strength, etc, convenient for spinning and weaving processing and dying and finishing treatment, and the products have natural bacteriostasis function.

Description

technical field [0001] The invention relates to the production of fibers from plant fiber raw materials, more precisely, hemp viscose fiber pulp and functional fibers and a preparation method thereof. technical background [0002] At present, viscose fiber is a regenerated cellulose fiber with a wide range of uses, which is made from natural cellulose such as wood and cotton linters through a series of processes such as cooking, acid treatment, and bleaching. Because this fiber and its fabric have good moisture absorption and release properties, soft hand feeling, comfortable wearing, and close to natural cotton properties, it is deeply favored by consumers. However, ordinary cotton and wood fibers have the characteristics of low wet strength, large wet modulus, and easy deformation when worn. Especially in today's return to nature and green consumption, ordinary cotton and wood fibers do not have antibacterial properties, and fabrics made of natural fibers The demand is in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/06D21C3/00
Inventor 施金祥郑书华岳福升李振峰陈达志薛振军范梅欣顾宇鹭李花乔钱中国
Owner HEBEI JIGAO CHEM FIBER
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