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Method for preparing cotton-linter fiber

A technology of linters and fibers, which is applied in the field of linter fiber preparation and can solve problems such as linters discarding

Active Publication Date: 2013-06-12
SHANGHAI SHUIXING HOME TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Cotton linters are mainly composed of cellulose, and its cellulose can reach more than 98%. It is a very pure and excellent fiber raw material, but at present, a lot of cotton linters are discarded after the raw cotton is picked.

Method used

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Examples

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Effect test

preparation example Construction

[0024] The preparation method of cotton linter fiber of the present invention, it comprises the steps:

[0025] (1) Pulping: material preparation→cooking→bleaching→washing;

[0026] (2) Spinning: viscose pulp → soaking, pressing, dispersing alkali cellulose aging → yellowing → solution mixing → filtration → defoaming → spinning forming.

[0027] In the present invention, the purification yield of described stock preparation is 83-90% of one-course cashmere, 70-80% of two-course cashmere, and the impurity rate of raw material after stock preparation is < 6%.

[0028] In the present invention, the steaming and bleaching are to dissolve and bleach a small amount of impurities remaining on the cotton linters through the method of making cakes; the steaming bleaching agent is hydrogen peroxide.

[0029] In the present invention, the temperature of the cooking and bleaching is 120°C, and the pressure is 4.5kg / cm 2 , the time is 160-180min.

[0030] In the present invention, the w...

Embodiment 1

[0035] Process steps:

[0036] (1) Pulping: material preparation→cooking→bleaching→washing;

[0037] (2) Spinning: viscose pulp → soaking, pressing, dispersing alkali cellulose aging → yellowing → solution mixing → filtration → defoaming → spinning forming.

[0038] The purification yield of described stock preparation is 83% of one velvet, 70% of two velvet, and the impurity rate of raw materials after stock preparation < 6%.

[0039] The cooking and bleaching is to use the method of making cakes to dissolve and bleach a small amount of impurities remaining on the cotton linters through the bleaching agent; the bleaching agent is hydrogen peroxide.

[0040] The temperature of the cooking and bleaching is 120°C, and the pressure is 4.5kg / cm 2 , the time is 160min.

[0041] The washing time is 30 min, and the amount of clean water is 30m 3 / ton pulp.

[0042] Said spinning is dissolving cotton linters pulp in NMMO solvent, after impurity removal and filtration, spinning b...

Embodiment 2

[0046] Process steps:

[0047] (1) Pulping: material preparation→cooking→bleaching→washing;

[0048] (2) Spinning: viscose pulp → soaking, pressing, dispersing alkali cellulose aging → yellowing → solution mixing → filtration → defoaming → spinning forming.

[0049] The purification yield of described stock preparation is 90% of one velvet, 80% of second velvet, and the impurity rate of raw materials after stock preparation < 6%.

[0050] The cooking and bleaching is to use the method of making cakes to dissolve and bleach a small amount of impurities remaining on the cotton linters through the bleaching agent; the bleaching agent is hydrogen peroxide.

[0051] The temperature of the cooking and bleaching is 120°C, and the pressure is 4.5kg / cm 2 , the time is 180min.

[0052] The washing time is 30 min, and the amount of clean water is 30m 3 / ton pulp.

[0053] Said spinning is dissolving cotton linters pulp in NMMO solvent, after impurity removal and filtration, spinnin...

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Abstract

The invention aims to disclose a method for preparing a cotton-linter fiber. The method comprises the following steps of: (1) pulping: preparing materials, steaming, bleaching and washing; and (2) spinning: thickening a pulp, impregnating, pressing and dispersing an alkali cellulose, ageing, yellowing, mixing solutions, filtering, defoaming and spinning for forming. Compared with the prior art, the cotton-linter fiber is utilized effectively, spun and woven, has soft and smooth handfeel and strong moisture absorptivity and air permeability, is friendly to skin and environment-friendly and can be degraded naturally. Therefore, the purposes of the invention are achieved.

Description

technical field [0001] The invention relates to a method for preparing fiber, in particular to a method for preparing cotton linter fiber. Background technique [0002] With the progress of society, people have higher expectations for improving the quality of life, and the market demand for textiles is becoming more and more personalized, functional and health-care. New health-care fibers are developing rapidly in our country at an extremely fast speed. Although some fibers still have imperfections in the development process, it is believed that with the continuous improvement and maturity of the production process, their performance will be improved. Its products have a very broad space for development. Judging from the market consumption trend, people's pursuit of the function of bedding has transitioned from the warm-keeping type to the health-care type. [0003] my country is a big cotton producing country, with an annual output of up to 706 million tons of lint and hu...

Claims

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Application Information

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IPC IPC(8): D01F2/06D06L3/02D06L4/13
Inventor 梅山标袁波陈秀苗
Owner SHANGHAI SHUIXING HOME TEXTILE
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