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Gum-containing silk functional fiber preparation method

A functional fiber and silk technology, applied in fiber processing, animal fibers, textiles and papermaking, etc., can solve the problems of polluting the environment, low utilization value, and reducing the utilization value of silk

Inactive Publication Date: 2008-05-28
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, when using silk to develop products, most of the sericin was always removed through the degumming process first, so that the sericin protein accounting for about 1 / 4 of the cocoon silk was discarded as waste, which not only reduced the utilization value of silk, but also polluted the environment
Especially cocoon clothing as a by-product, whose sericin content accounts for 40-50%, can only be used as raw material for silk spinning, and its utilization value is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1: A) put cyclodextrin into dimethyl sulfoxide in a weight ratio of 1:8 for dissolving; then add o - Iodosobenzoic acid, reacted at 20-30°C for 20-28 hours, stirred, filtered off the insoluble matter, added an appropriate amount of acetone, precipitated a white solid, filtered, washed the obtained white solid with acetone, and after freeze-drying, Obtain cyclodextrin monoaldehyde;

[0013] B) Put the silk fiber into a glutaraldehyde solution with a concentration of 0.1 to 0.5% by weight at a weight ratio of 1:20, and fix the sericin on the silk for 2 hours under the condition of 25 to 35° C., take it out and wash it. net;

[0014] C) putting the silk fibers treated by sericin fixation into an acidic aqueous solution with a pH value of 4 to 7 in a weight ratio of 1: 30 to 50, and in a weight ratio of 1: 1 to cyclodextrin monoaldehyde 3 Add cyclodextrin monoaldehyde, stir, and react at 20-30°C for 1-3 hours;

[0015] D) The reducing agent sodium cyanoborohydrid...

Embodiment 2

[0017] Example 2: A) Dissolving cyclodextrin in dimethyl sulfoxide at a weight ratio of 1:10; Acylbenzoic acid, reacted at 30°C for 28 hours, stirred, filtered off the insoluble matter, added an appropriate amount of acetone, precipitated a white solid, filtered, washed the obtained white solid with acetone, and freeze-dried to obtain cyclodextrin monoaldehyde ;

[0018] B) putting the silk fiber into a glutaraldehyde solution with a concentration of 0.1% by weight at a weight ratio of 1:20, fixing the sericin on the silk for 2 hours at 25° C., taking it out and washing it;

[0019] C) Put the silk fiber fixed by sericin into an acidic aqueous solution with a pH value of 7 at a weight ratio of 1:50, and add cyclodextrin monoaldehyde at a weight ratio of fiber to cyclodextrin monoaldehyde of 1:3. Aldehyde, stirred, reacted at 30°C for 3 hours;

[0020] D) Put the reducing agent sodium cyanoborohydride into the reaction solution according to the molar ratio of cyclodextrin mon...

Embodiment 3

[0022] Example 3, A) Dissolve cyclodextrin in dimethyl sulfoxide at a weight ratio of 1:8.8; Acylbenzoic acid, reacted at 25°C for 24 hours, stirred, filtered off the insoluble matter, added an appropriate amount of acetone, precipitated a white solid, filtered, washed the obtained white solid with acetone, and freeze-dried to obtain cyclodextrin monoaldehyde ;

[0023] B) Putting the silk fiber into a glutaraldehyde solution with a concentration of 0.5% by weight at a weight ratio of 1:20, fixing the sericin on the silk for 2 hours at 35° C., taking it out and washing it;

[0024] C) Put the silk fiber fixed by sericin into the acidic aqueous solution with a pH value of 6 at a weight ratio of 1:40, and add cyclodextrin monoaldehyde at a weight ratio of fiber to cyclodextrin monoaldehyde of 1:2 Aldehyde, stirred, reacted at 25°C for 2 hours;

[0025] D) Put the reducing agent sodium cyanoborohydride into the reaction solution according to the molar ratio of cyclodextrin mono...

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PUM

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Abstract

The invention relates to a process for preparing sericin silk functional fiber, which comprises: processing the sericin fixation on the sericin silk, then grafting cyclodextrin onto the silk fiber through chemical bond to obtain the sericin silk functional fiber product with cyclodextrin solid chirality hydrophobic cavity. The process for preparartion can be applied in the preparation of aromatic and medical health care functional fiber and also can be applied in the fields of molecule identification, waste water purification, artificial enzyme system forming and pharmaceutical slow release.

Description

technical field [0001] The invention relates to a method for preparing glue-containing silk functional fibers, which belongs to the technical field of textile fiber preparation. Background technique [0002] Mulberry silk is composed of sericin and silk fibroin, and the content of sericin accounts for about 20-30% of the cocoon silk. After silk processing, there are still about 20% sericin remaining on the raw silk. In the past, when silk was used to develop products, most of the sericin was always removed through degumming process, so the sericin protein accounting for about 1 / 4 of the cocoon silk was discarded as waste, which not only reduced the utilization value of silk, but also polluted the environment. Especially cocoon clothing as by-product, its sericin content accounts for 40~50%, can only be used as silk spinning raw material, and utilization value is low. [0003] Cyclodextrin (abbreviated as CD) is a cyclic oligosaccharide compound composed of more than six gl...

Claims

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Application Information

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IPC IPC(8): D06M13/123D06M15/03D06M101/12
Inventor 胡智文王秉郑海玲温会涛万军民陈文兴
Owner ZHEJIANG SCI-TECH UNIV
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