High-strength high-wet-modulus bamboo fibre and preparation method thereof

A bamboo cellulose, high wet modulus technology, applied in the field of textile fibers, can solve problems such as poor wet stability, achieve good alkali resistance, high strength performance, and improve textile processing performance.

Inactive Publication Date: 2008-06-18
CHTC HELON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of bamboo cellulose fiber with high strength and high wet modulus with high dry and wet strength and wet modulus, to solve the problems existing in aspects such as spinning and weavi...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] (1) impregnation alkalization: adopt cellulose bamboo pulp to impregnate alkalization through the NaOH solution of 235g / l, add the V-32 of relative α-cellulose weight 0.1% when dipping alkalization, alkalization time is 0.45 hour, control The content of hemicellulose in the soaking lye is not more than 3%, crushed by pressing, and aged at 25°C for 5 hours to obtain alkali cellulose containing 27.0% of α-cellulose and 14.5% of NaOH;

[0018] (2) Xanthification: mix alkali cellulose with 34.5% CS relative to the weight of α-cellulose 2 Yellowing reaction 1.3 hours, generate cellulose xanthate, after yellowing finishes, add deionized water to dissolve, obtain α-cellulose 6.8%, the bamboo cellulose xanthate viscose of NaOH5.8%; During the dissolving process of xanthate, 1.5% V-314 relative to the weight of α-cellulose was added.

[0019] (3) Filtration, defoaming, ripening: after the bamboo cellulose viscose is dissolved, then through processes such as filtration, defoamin...

Embodiment 2

[0024] (1) impregnation alkalization: adopt cellulose bamboo pulp to impregnate alkalization through 245g / l NaOH solution, add relative α-cellulose weight 0.3% polyoxyethylene fatty amine during dipping alkalization, alkalization time is 4 hours , controlling the content of hemicellulose in the soaking lye to not exceed 5%, crushing by pressing, aging at 45°C for 0.3 hours to obtain alkali cellulose containing 28.0% of α-cellulose and 17.5% of NaOH;

[0025] (2) Xanthification: mix alkali cellulose with 38% CS relative to the weight of α-cellulose 2 After yellowing reaction for 2 hours, cellulose xanthate is produced. After yellowing, add deionized water to dissolve, and then add 1.0% CS relative to the weight of α-cellulose 2 Supplement yellowing for the second time to obtain α-cellulose 8.6%, NaOH 6.0% bamboo cellulose viscose; add 3.5% V-314 relative to α-cellulose weight in the dissolution process of cellulose xanthate.

[0026] (3) Filtration, defoaming, ripening: after ...

Embodiment 3

[0031] (1) impregnation alkalization: adopt cellulose bamboo pulp to impregnate alkalization through the NaOH solution of 240g / l, add the V-388 of relative α-cellulose weight 0.25% when dipping alkalization, alkalization time is 0.5 hour, control The content of hemicellulose in the soaking lye is not more than 3%, crushed by pressing, and aged at 28°C for 7 hours to obtain alkali cellulose containing 29.5% of α-cellulose and 17.5% of NaOH;

[0032] (2) Xanthification: mix alkali cellulose with 43% CS by weight relative to α-cellulose 2 After yellowing reaction for 1.5 hours, cellulose xanthate is generated. After yellowing, add deionized water to dissolve, and then add 2.0% CS relative to the weight of α-cellulose 2 Supplement yellowing for the second time, obtain α-cellulose 7.5%, the bamboo cellulose xanthate viscose of NaOH7.0%; Add 2.2% of relative α-cellulose weight in the dissolving process of cellulose xanthate V-315 is used to prepare denatured cellulose xanthate visc...

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PUM

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Abstract

The invention discloses a modulus bamboo cellulose fiber with high strength and high humidity and a preparation method thereof. With cellulose bamboo pulp as the raw material, the fiber is prepared through steps of impregnation alkalization, press grinding, being well versed, etiolation, dissolution, ripening, filtration, deaeration, wet spinning solidification molding, drafting, plasticization, post processing, etc. The fiber dry state fracture strength is 2.50-5.00CN/dte, the wet state fracture strength is 1.30-3.5CN/dtex and the wet modulus is 0.28-0.55CN/dtex. The invention overcomes the defects of the easy deformation, the poor size stability and no alkali resistance of the present bamboo cellulose fiber under the wet state and has the advantages of uneasy deformed textile, good size stability, good alkali resistance, etc. under the wet state. And the good characteristics of natural bamboo fiber are maintained in the invention, including coolness, air previous property, moisture absorption, bacteriostasis, etc. the more important is that the invention is provided with higher strength and good application property.

Description

technical field [0001] The invention relates to a textile fiber, in particular to a bamboo cellulose fiber with high strength and high wet modulus produced by using bamboo pulp as a raw material and a preparation method thereof. Background technique [0002] The bamboo viscose fiber prepared by the prior art has the characteristics of moisture absorption, breathability, softness and coolness, and is especially suitable for making summer fabrics, but the dry and wet strength of the fiber is low, so it is easy to break ends in the subsequent spinning and weaving process, and the production The process is difficult, which brings certain difficulties to the use of downstream processes; at the same time, there are disadvantages such as severe swelling of the fiber in the wet state, low wet strength and wet modulus, easy deformation of the fabric, and poor dimensional stability, and the fiber cannot withstand improvement. For fabric style mercerizing and other treatments, only loo...

Claims

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Application Information

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IPC IPC(8): D01F2/10C08B9/00
Inventor 逄奉建刘海洋刘建华姜明亮王东
Owner CHTC HELON
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