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A kind of preparation method of fabric finishing agent based on modified silk fibroin solution

A silk fibroin and post-finishing technology, which is applied in the direction of improved hand-feeling fiber, fiber treatment, wear-resistant fiber, etc., can solve the problems of poor mechanical properties of silk fibroin film, high dissolution rate in water, and reduced imitation silk property , to achieve the effects of enhanced toughness, strong moisture absorption and excellent gelation

Active Publication Date: 2017-11-28
SUZHOU INSILK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] According to the above-mentioned prior art, in order to maintain the original special properties of silk fibroin, the current fabric finishing agent based on silk rarely adds other additives, but the mechanical properties of the silk film made of pure silk dissolved Poor, high dissolution rate in water, the fabric covered with pure silk film has poor washing resistance, and after repeated washing, its imitation silk property will be significantly reduced, and the durability is poor

Method used

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  • A kind of preparation method of fabric finishing agent based on modified silk fibroin solution

Examples

Experimental program
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Effect test

Embodiment 1

[0029] (1) Remove impurities from the waste silk, put it in 5g / L sodium bicarbonate solution, boil and degumming at 95°C for 60min, remove and wring out, wash with water until there is no greasy feeling, then put it in 2g / L sodium bicarbonate In the solution, boil at 95°C for 60 minutes for degumming, remove and wring out, wash with water until there is no greasy feeling, and then place it in an oven at 60°C to dry to obtain degummed silk.

[0030] (2) Place the degummed silk of 1 part by weight prepared in step (1) in 8 parts of lithium bromide solution, let it stand for dissolving at 60° C. for 30 min, take it out for cooling, dialyze and concentrate to obtain a silk fibroin solution with a mass fraction of 8%. , wherein the molecular weight of silk fibroin is 125KDa.

[0031] (3) Add glycerin and gelatin to the silk fibroin solution prepared in step (2), stir evenly to form a film liquid, adjust the pH value to 6, then add glutaraldehyde and chitosan, stir evenly, and final...

Embodiment 2

[0033] (1) Remove impurities from the waste silk, put it in 8g / L sodium bicarbonate solution, boil and degumming at 98°C for 90 minutes, remove and wring out, wash with water until there is no greasy feeling, and then put it in 3g / L sodium bicarbonate In the solution, boil at 98°C for 90 minutes for degumming, remove and wring out, wash with water until there is no greasy feeling, and then place it in an oven at 60°C to dry to obtain degummed silk.

[0034] (2) Place the degummed silk of 1 part by weight prepared in step (1) in 10 parts of lithium bromide solution, let it stand for dissolving at 80°C for 60 min, take it out for cooling, dialyze and concentrate to obtain a silk fibroin solution with a mass fraction of 6%. , wherein the molecular weight of silk fibroin is 80KDa.

[0035] (3) Glycerin and gelatin are added to the silk fibroin solution prepared in step (2), stirred evenly to form a film solution, and the pH value is adjusted to 7, then glutaraldehyde and chitosan ...

Embodiment 3

[0037] (1) Remove impurities from the waste silk, put it in 6g / L sodium bicarbonate solution, boil it at 97°C for 80 minutes, remove it and wring it out, wash it with water until there is no greasy feeling, and then put it in 2.5g / L hydrogen carbonate solution In sodium solution, boil at 96°C for 70 minutes for degumming, remove and wring out, wash with water until there is no greasy feeling, and then place in an oven at 60°C to dry to obtain degummed silk.

[0038](2) Place the degummed silk of 1 part by weight prepared in step (1) in 9 parts of lithium bromide solution, let it stand and dissolve for 50 min at 70° C., take out and cool, dialyze and concentrate to obtain a silk fibroin solution with a mass fraction of 7%. , wherein the molecular weight of silk fibroin is 105KDa.

[0039] (3) Glycerin and gelatin are added to the silk fibroin solution prepared in step (2), stirred evenly to form a film solution, and the pH value is adjusted to 6.5, then glutaraldehyde and chito...

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Abstract

The invention provides a fabric post-finishing agent based on a modified silk fibroin solution and a preparation method of the fabric post-finishing agent. The preparation method comprises the following specific operational steps: (1) removing impurities from waste silk, putting the impurity-free waste silk in a sodium bicarbonate solution for boiling and degumming, taking out and wringing out the degummed waste silk, washing with clean water till the greasy feel is eliminated, putting the primarily treated waste silk in the sodium bicarbonate solution again for boiling and degumming, taking out and wringing out the degummed waste silk again, washing again with clean water till the greasy feel is eliminated, putting the secondarily treated waste silk in an oven for drying, so as to obtain degummed silk; (2) putting the degummed silk in a lithium bromide solution for standing and dissolution, taking out the treated silk, and performing cooling, dialysis and concentration to obtain a silk fibroin solution; and (3) adding glycerin and gelatin into the silk fibroin solution, uniformly stirring to form a membrane solution, adjusting the pH value of the membrane solution and then adding glutaraldehyde and chitosan, uniformly stirring, and finally mixing the treated membrane solution with a solvent containing additives, so as to obtain the fabric post-finishing agent. The fabric post-finishing agent obtained according to the preparation method covers the fabric surface in the form of a composite membrane; and the preparation method is beneficial to improvements in the membrane forming property, the ductility and the like of a silk fibroin finishing agent.

Description

Technical field: [0001] The invention belongs to the technical field of textile materials, and in particular relates to a preparation method of a fabric finishing agent based on a modified silk fibroin solution. Background technique: [0002] Silk fibroin is the main component of silk, accounting for about 70% of silk quality. Silk fibroin is a natural protein, safe and non-toxic, with good biocompatibility with the body, and also has a unique molecular structure, excellent Excellent mechanical properties, excellent moisture absorption and antimicrobial properties, so silk fibroin has been studied in new polymer composite materials, biomedical materials and fabric finishing materials. [0003] Fabric finishing materials are the surface finishing of woven fabrics, so as to optimize some properties of the fabrics or increase certain properties. In recent years, with people's increasing emphasis on health and environmental protection, non-toxic finishing has become an inevitab...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/15D06M13/148D06M13/123D06M15/03
CPCD06M13/123D06M13/148D06M15/03D06M15/15D06M16/00D06M2200/35D06M2200/50
Inventor 周继东
Owner SUZHOU INSILK CO LTD
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