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Silk brush fibre and its preparation method

A technology of silk and bristles, which is applied in the direction of bristles, brushes, textiles and papermaking, etc., can solve the problems of bristles, such as the adverse effects on the human body and the environment, and achieve the effects of low product cost, less pollution, and simple preparation process

Inactive Publication Date: 2004-11-24
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiency that the bristles made of artificial synthetic materials have adverse effects on the human body and the environment, and provide a bristle made of silk fiber and silk protein (including silk fibroin and sericin) as raw materials and a preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A bristle, comprising a core fiber formed by sticking together a plurality of silks, and a covering layer made of silk protein covering the periphery of the core fiber. The specific processing steps are:

[0017] 1. Silk degumming: with a concentration of 0.05% Na 2 CO 3 The solution degummed the silk fiber three times to ensure that the sericin on the silk was completely removed.

[0018] 2. Preparation of silk protein solution: with a concentration of 0.05% Na 2 CO 3 The solution is used to completely degumming the waste silk; the molar ratio is CaCl 2 :H 2 O:C 2 h 5 OH=1:8:2 to configure the solution. Put the degummed silk into the above solution, heat to 80±5°C, and stir at this temperature until the silk is completely dissolved. The obtained silk fibroin solution is filtered, dialyzed and concentrated to obtain a silk fibroin solution with a solid content of 65%.

[0019] 3. Bonding of silk fibers: Take 7 silks that have been completely degummed, glue the...

Embodiment 2

[0023] According to the method described in step 1 in Example 1, completely degummed silk was obtained; according to the method described in step 2, a silk fibroin solution was obtained, and the solid content of the silk fibroin was controlled at 40%.

[0024] Take 20 completely degummed silks, stick them together with the above-mentioned silk protein solution, and dry them at a temperature of 50±5°C to make silk core fibers.

[0025] The silk protein solution is coated on the surface of the prepared silk core fiber by a coating method, and then dried. Repeat this step 5 times as needed.

[0026] Steam the above-mentioned silk fibers with steam at a temperature of 120±15°C for more than 30 minutes, harden and insolubilize them with high-pressure steaming, and cut off the obtained fibers according to the length requirements, so as to obtain the multi-silk sticky silk fibers according to the present invention. Combined together to form the core fiber, the periphery is silk bris...

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PUM

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Abstract

The present invention relates to a method for making brush fibre by using natural high-molecular material silk as raw material, said method includes the following steps: boiling silk, adhesive bonding boiled silk to obtain core thread, covering it with silk protein as covering layer, drying, high-pressure steaming or soaking in alcohol to make hardening and insoluble treatment and make silk fibre have a certain hardness. Said silk protein has no toxicity for human body, has no irritating action and has good bio-compatibility, so that said silk fiber is suitable for making toothbrush and other brushes which can be directly contacted with human body.

Description

technical field [0001] The invention relates to a bristle and a preparation method thereof, in particular to a bristle with natural fiber—silk as the main raw material and a preparation method thereof. Background technique [0002] At present, it is used to make toothbrushes on the market, whether it is disposable or durable, whether it is a children's toothbrush or an adult toothbrush, most of its bristles are prepared from synthetic materials such as nylon as raw materials. Thereby, there are following problems: the one, the bristles made of artificial synthetic materials, in the process of people brushing their teeth, the worn part will remain in the oral cavity more or less and enter the human body; The hardness is the same as that of an adult toothbrush, which may cause damage to children's teeth; the third is that excessive use of artificial synthetic materials will cause pollution to the environment. Therefore, be that raw material is made br...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A46D1/00A46D1/04D02G3/02
Inventor 田保中左葆齐
Owner SUZHOU UNIV
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