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Denatured bamboo pulp viscose short fiber and its production process

A viscose staple fiber and production process technology, applied in the direction of man-made filament in cellulose solution, stretch spinning, etc., can solve the problems of low fiber strength, allergic reaction, etc., achieve low sulfur content, high cleanliness, good quality effect

Active Publication Date: 2008-07-09
唐山三友集团兴达化纤有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the wearing and application of this kind of fabric, its function will gradually weaken under the influence of physical and chemical effects such as abrasion and washing, and some people will have allergic reactions to it, and the strength of these fibers is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Impregnation: Bamboo pulp is sent into the impregnation barrel to feed meal, impregnate, temperature: 49 ℃, time 60 minutes, the concentration of alkali: 220g / L, denaturant V-388 consumption: 0.5% (p-methyl cellulose).

[0030] (2) Press and crush with AB72 press machine. The pulverized raw material is aged with copper at the aging outlet, the temperature is 49°C, and the viscosity is 48mp;

[0031] (3), yellowing: carbon disulfide adds 32% to methyl cellulose, the yellowing time is 24 minutes, temperature 18 ℃, adds denaturant 0.7% (to methyl cellulose) in dissolving.

[0032] (4), spinning: in spinning machine

[0033] Acid bath: first bath: acid bath with spinning bath liquid, acid bath temperature: 48°C, acid bath drop: 6g / L;

[0034] Second bath: temperature 65°C, sulfuric acid concentration: 55g / L, sodium sulfate concentration: 120g / L.

[0035] (5) Drafting:

[0036] Drafting with drafting machine, total draft: 2.7 times, spinneret draft: 1.6 times

[003...

Embodiment 2

[0042] (1) Impregnation: Bamboo pulp is sent into the impregnation barrel to feed meal, impregnate, temperature: 49 ℃, time 60 minutes, the concentration of alkali: 220g / L, denaturant V-388 consumption: 0.5% (p-methyl cellulose).

[0043] (2), squeezing aging: crushing with AB72 type squeezing machine, the raw material after pulverization is aging with aging export copper sticking, temperature 50 ℃, viscosity is 48mp;

[0044] (3), yellowing: technical condition: carbon disulfide adds 32% to methyl cellulose, and the yellowing time is 26 minutes, and 25 ℃ of temperatures add denaturant 0.9% (to methyl cellulose) in dissolving.

[0045] (4), spinning: in spinning machine

[0046] Acid bath: first bath: acid bath with spinning bath liquid, acid bath temperature: 49°C, acid bath drop: 6g / L;

[0047] Second bath: temperature 68°C, sulfuric acid concentration: 55g / L, sodium sulfate concentration: 120g / L.

[0048] (5) Drafting:

[0049] Drafting with drafting machine, total draft...

Embodiment 3

[0055] (1) Impregnation: bamboo pulp is sent into the impregnation container to feed meal, impregnate, temperature: 49 ℃, the time 60 minutes, the concentration of alkali: 220g / L, denaturant V-388 consumption: 0.5% (paramethylcellulose).

[0056] (2) Squeeze aging: press and pulverize with AB72 type extruder, and the raw material after pulverization is aged with copper at the exit of aging, the temperature is 51°C, and the viscosity is 48mp;

[0057] (3) Yellowing: the addition of carbon disulfide to methyl cellulose is 32%, the yellowing time is 28 minutes, the temperature is 35°C, and 1.0% denaturant (to methyl cellulose) is added in the dissolution.

[0058](4), spinning: in spinning machine

[0059] Acid bath: first bath: acid bath with spinning bath liquid, acid bath temperature: 50°C, acid bath drop: 6g / L;

[0060] Second bath: temperature 70°C, sulfuric acid concentration: 55g / L, sodium sulfate concentration: 120g / L

[0061] (5) Drafting:

[0062] Drafting with draft...

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Abstract

The denatured bamboo pulp viscose short fiber and its production process belongs to the field of textile fiber and its making technology. The fiber product has dry strength not lower than 2.5 CN / dtex and wet strength not lower than 1.20 CN / dtex, and consists of cellulose fiber 86.7-91.75 wt%, water 8-13 wt% and oil 0.15-0.30 wt%. The production process includes soaking bamboo pulp inside soaking tank, yellowing in yellowing machine, acid spinning in spinning mill with acid bath, refining in nap tank, stoving in stoving machine, fine opening and packing. The present invention has the quality indexes superior to those of common short viscose fiber, and the present invention provides new way of producing viscose fiber.

Description

Technical field: [0001] The invention relates to a denatured bamboo pulp viscose short fiber for the textile spinning industry and a production process thereof. Background technique: [0002] Ordinary viscose staple fiber has been developed for about 100 years. Its raw materials are mostly wood pulp and cotton pulp, and its product performance is similar to natural cotton. The fabric processed with it has good hygroscopicity, air permeability, and is comfortable to wear. The fabric made of ordinary viscose staple fiber is widely recognized by consumers. With the continuous improvement of people's living standards, fibers with functions such as antibacterial and health care increasingly favored. Nowadays, antibacterial and deodorant fibers and fabrics at home and abroad are all added with chemicals in the later stage of fiber or fabric production. During the wearing and application of this kind of fabric, its function will gradually weaken under the influence of physical an...

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 Patents(China)
IPC IPC(8): D01D5/12D01F2/02
Inventor 李晓明张会平么志高郑晓晨
Owner 唐山三友集团兴达化纤有限公司