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Cellulose/alginate composite fiber and its preparing method

A composite fiber and alginate technology, applied in cellulose/protein conjugated artificial filament, alginate artificial filament, fiber treatment, etc., can solve the problem of poor physical and mechanical properties of seaweed fiber and low fiber strength and elongation and other problems, to achieve the effect of good dimensional stability, high strength and expanded application range of the fabric

Active Publication Date: 2006-11-08
潍坊欣龙生物材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The first technical problem to be solved by the present invention is to provide a cellulose / alginate composite fiber to solve the known problems of poor physical and mechanical properties of seaweed fiber and low fiber strength and elongation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Take 1 part of sodium alginate with a degree of polymerization of 579 and dissolve it with 50 parts of demineralized water at 60°C, then add 0.02mol / l NaCl solution at a ratio of 0.3% relative to sodium alginate, and Percentage) the ratio of adding aloe vera gel, through 12 hours of continuous stirring, to obtain a viscous solution with a viscosity of 10Pa.S.

[0019] At 35°C, the cotton pulp with a degree of polymerization of 600 was basified with 238g / l NaOH solution for 2 hours to generate alkali cellulose, aged at 30°C for 5 hours to obtain alkali fiber containing 29% (weight percent) of cellulose element; then add the CS equivalent to 46% (percentage by weight) of the cellulose content 2 After reacting for 4 hours, cellulose xanthate was obtained.

[0020] Fully mix the cellulose xanthate with a solution of sodium alginate corresponding to 4.9% (weight percent) of the cellulose content, and stir for 4 hours to obtain a spinning stock solution.

[0021] Press the ...

Embodiment 2

[0024] Take 1 part of sodium alginate with a degree of polymerization of 538 and dissolve it with 60 parts of demineralized water at 50°C, then add 0.01mol / l NaCl solution at a ratio of 0.2% relative to sodium alginate, and Percentage) the ratio of adding aloe vera gel, through 16 hours of continuous stirring, to obtain a viscous solution with a viscosity of 9.6Pa.S.

[0025] At 38°C, the wood pulp with a degree of polymerization of 590 was basified with 240g / l NaOH solution for 2 hours to generate alkali cellulose, aged at 30°C for 3 hours to obtain alkali cellulose containing 29% cellulose, and then added Relative to cellulose 48% (weight percent) of CS 2 After reacting for 3 hours, cellulose xanthate was obtained.

[0026] Fully mix the cellulose xanthate with a solution of sodium alginate corresponding to 3.8% (weight percent) of the cellulose content, and stir for 3 hours to obtain a spinning stock solution.

[0027] Press the above-mentioned spinning dope into the coag...

Embodiment 3

[0030] Take 1 part of sodium alginate with a degree of polymerization of 568 and dissolve it with 50 parts of demineralized water at 49°C, then add 0.02mol / l NaCl solution at a ratio of 0.3% relative to sodium alginate, and Percentage) the ratio of adding aloe vera gel, through 9 hours of continuous stirring, to obtain a viscous solution with a viscosity of 10.6Pa.S.

[0031] At 39°C, the bamboo pulp with a degree of polymerization of 690 was basified by 240g / l NaOH solution for 4 hours to generate alkali cellulose, aged at 30°C for 2 hours to obtain alkali cellulose containing 29.6% of cellulose, and then added relative CS in cellulose 40% (weight percent) 2 After reacting for 5 hours, cellulose xanthate was obtained.

[0032] The cellulose xanthate is fully mixed with a solution of sodium alginate corresponding to 3.9% (weight percent) of the cellulose content, and stirred for 4 hours to obtain a spinning stock solution.

[0033] Press the above-mentioned spinning dope int...

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Abstract

The present invention discloses a kind of composite cellulose / alginate fiber and its preparation process. Technologically, the present invention features that viscous sodium alginate solution prepared in certain technological condition and cellulose xanthate in certain weight proportion are mixed to form the spinning solution, and the through further spinning and refining steps, the composite cellulose / alginate fiber is prepared. The composite fiber consists of cellulose 85-99.8 weight portions and sodium alginate 0.02-15 weight portions. The composite fiber has high hygroscopicity and high mechanical performance and can promote the healing of skin inflammation. The composite fiber may be used in weaving fabric with good hand feeling, high ygroscopicity, high wet strength and high size stability, and is suitable for use in medical field and in making various kinds of high grade underwear, etc.

Description

technical field [0001] The invention relates to the technical field of man-made cellulose fibers, in particular to a composite fiber mainly made of cellulose and alginate, and also relates to a preparation method of the cellulose / alginate composite fiber. Background technique [0002] Alginate is a natural polymer composed of linear copolymers linked by β-D mannuronate and α-L guluronate (1→4). The application of alginate in medical and health originated from the invention of "wet therapy". Alginate can interact with wound secretions to form a wet gel, which can generate a wet therapeutic environment in situ on the wound, thereby promoting wound healing. Accelerates the healing of inflammation due to skin inflammation, ringworm and allergic reactions. At the same time, alginate has high hygroscopicity, so it is especially suitable for the medical and health field, and plays an important role in the protection of human health. [0003] Chinese patent application CN1297957 d...

Claims

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Application Information

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IPC IPC(8): D01F8/02D01D5/00D01F9/04
Inventor 田素峰刘海洋王乐军
Owner 潍坊欣龙生物材料有限公司
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