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Polysaccharide fibers and preparation method thereof

A fiber and cellulose technology, applied in the field of preparing polysaccharide fibers, can solve problems such as unsatisfactory processing

Inactive Publication Date: 2019-04-30
慈溪市一众电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it was shown that α(1→3)-glucan was not processed satisfactorily into fibers under these conditions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations.

[0036] The degree of polymerization of α(1→3)-glucan was determined by means of GPC in DMAc / LiCl. The weight averages (DPw) of the degree of polymerization are always given below.

[0037] A spinning solution containing 13% by weight of solid (cellulose+α(1→3) glucan) / 77% by weight of N-methylmorpholine-N-oxide / 10% by weight of water at 130 Spinning in water from a nozzle through an air gap (length 30 mm) at °C. In the air gap, blow with dry air (ie humidity = 0% relative) at room temperature. The discharge amount of the spinning nozzle was 0.05 g / perforation*min. The cellulose raw material used was Saiccor cellulose with a SCAN viscosity of 450 ml / g. α(1→3) glucans with two different degrees of polymer...

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PUM

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Abstract

The invention relates to a method of preparing polysaccharide fibers and the fibers prepared thereby and an application thereof. A substance for forming the fibers contains a mixture of cellulose andalpha (1-3)-glucan.

Description

technical field [0001] The present invention relates to a process for the production of polysaccharide fibers comprising a mixture of cellulose and α(1→3)-glucan as fiber-forming substance, as well as fibers produced thereby and their use. Background technique [0002] Polysaccharides are becoming increasingly important as they are materials that can be obtained from renewable raw materials. One of the most common polysaccharides is cellulose. Cotton fibers, which consist almost entirely of cellulose, are an example of the importance of polysaccharides. However, materials likewise obtained from other cellulosic raw materials, such as cellulosic synthetic fibers, are also becoming more and more important. [0003] The species designation "Lyocell fibers" is assigned by BISFA (International Bureau for the Standardization of Man-made Fibers) to cellulose fibers prepared from solutions in organic solvents without formation of derivatives. [0004] However, to date only one me...

Claims

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Application Information

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IPC IPC(8): D01F8/02D01F8/18D01D1/02
CPCD01F8/02D01D1/02D01F8/18
Inventor 房庆红
Owner 慈溪市一众电器有限公司