Bamboo viscose fibre and its preparing method

A viscose fiber and bamboo technology, applied in the field of fiber production, can solve problems such as failure to achieve antibacterial, functional decline, and skin impact.

Inactive Publication Date: 2003-11-26
吉林化纤股份有限公司
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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 decrease or even be lost, and t...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Pretreatment: liquid ratio 1:2.5, temperature 160°C, time 180 minutes.

[0033] (2) Cooking: the amount of alkali used is 8% of the absolute dry pulp in terms of NaOH, the liquid ratio is 1:4, hydrogen peroxide

[0034] For 1% absolute dry pulp, the oxygen pressure is 0.70Mpa, the total heating time is 150 minutes, the holding temperature is 125°C, and the holding time is 11 hours.

[0035] (3) Chlorination: the amount of chlorine used for chlorination is 1% of absolute dry pulp, the concentration of chlorinated pulp is 3.2%, the chlorination time is 60 minutes, and the chlorination temperature is normal temperature.

[0036] (4) Alkali refining: pulp concentration 5%, NaOH consumption 2% to absolute dry pulp, refining temperature 90°C, hydrogen peroxide to 0.5% absolute dry pulp, oxygen flow to 0.4% absolute dry pulp, time 100 minutes.

[0037] (5) Bleaching:

[0038] The pH of the first stage is 9, the amount of chlorine used is 1% to the amount of absolute dry ...

Embodiment 2

[0063] (1) Pretreatment: liquid ratio 1:3, temperature 170°C, time 150 minutes.

[0064] (2) Cooking: the amount of alkali used is 13% of the absolute dry pulp in terms of NaOH, the liquid ratio is 1:5, hydrogen peroxide

[0065] For 2% absolute dry pulp, the oxygen pressure is 0.80Mpa, the total heating time is 200 minutes, the holding temperature is 128°C, and the holding time is 8.5 hours.

[0066] (3) Chlorination: the amount of chlorine used for chlorination is 2.5% to the absolute dry pulp amount, the chlorination pulp is thick 3.0%, the chlorination time is 50 minutes, and the chlorination temperature is normal temperature.

[0067] (4) Alkali refining: pulp concentration 8%, NaOH consumption 4% relative to absolute dry pulp, refining temperature 80°C, hydrogen peroxide relative to absolute dry pulp 1%, oxygen flow rate relative to absolute dry pulp 0.5%, time 80 minutes.

[0068] (5) Bleaching:

[0069] The pH of the first stage is 10, the amount of chlorine used is ...

Embodiment 3

[0094] (1) Pretreatment: liquid ratio 1:3.5, temperature 180°C, time 100 minutes.

[0095] (2) Cooking: the amount of alkali used is 16% of the absolute dry pulp in terms of NaOH, the liquid ratio is 1:6, hydrogen peroxide

[0096] The absolute dry pulp volume is 3%, the oxygen pressure is 0.90Mpa, the total heating time is 240 minutes, the holding temperature is 132°C, and the holding time is 6 hours.

[0097] (3) Chlorination: the amount of chlorine used for chlorination is 4% to the absolute dry pulp amount, the thick 2.8% of the chlorinated pulp, the chlorination time is 40 minutes, and the chlorination temperature is normal temperature.

[0098] (4) Alkali refining: pulp concentration 10%, NaOH consumption 6% relative to absolute dry pulp, refining temperature 70°C, hydrogen peroxide relative to absolute dry pulp 1.5%, oxygen flow rate 0.6% relative to absolute dry pulp, time 60 minutes.

[0099] (5) Bleaching:

[0100] The pH of the first stage is 11, the amount of chl...

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Abstract

The bamboo viscose fiber preparing process includes the steps of preparing bamboo material, cutting, screening, washing, pre-treatment, digestion, eliminating sand, concentration, chlorination, alkali refining, bleaching, acid treatment, eliminating sand and concentration, fishing, soaking, squeezing, crushing, ageing, yellowing, grinding, dissolving, filtering, defoaming, filterin,g spinning, drafting, cutting, post-treatment, drying and packaging. The bamboo viscose fiber thus prepared is antibacterial, cool, smooth, fine and bright, and the present invention creates a new field for developing viscose fiber products.

Description

technical field [0001] The invention relates to the production of fibers from plant fiber raw materials, that is, the preparation of fibers by pulping and papermaking methods, more precisely, bamboo viscose 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. Especially in today's return to nature and green consumption, the demand for fabrics made of natural fibers is increasing day by day. However, with the increasing shortage of traditional raw materials such as wood and cotton linters, the pro...

Claims

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Application Information

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IPC IPC(8): D01C1/02D01D5/06D01F2/06D06L4/13D06L4/20
Inventor 姜厚有赵建芬朱长生孙同会薛振军宋志国蔡维义
Owner 吉林化纤股份有限公司
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