Process for producing regenerated silk protein super fine fiber

A technology for regenerating silk and ultra-fine fibers, applied in the direction of single-component fibroin rayon, wet spinning, etc., can solve the problems of unstable structure, poor direct use performance of fibers, easy to change, etc., and achieve direct use The effect of improved properties, excellent fiber properties, and a wide range of options

Inactive Publication Date: 2005-03-02
DONGHUA UNIV
View PDF10 Cites 30 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of amorphous and silk fibroin I crystal forms is very unstable, and it is easy to change under conditions such as heat, solvent, and stress, and the mechanical properties of the fiber are deteriorated.
Since the fibroin fibers obtained in the above-ment

Method used

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
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The cocoon is degummed by the alkali method, and the specific steps are as follows:

[0015] Put 40 grams of silk cocoons into 0.5% (weight percent) sodium carbonate solution, stir, and boil for 60 minutes to remove sericin on its surface, take out the silk, squeeze dry, wash with water, and dry at room temperature to obtain white silk protein 29.6 grams.

[0016] 29.6 grams of silk fibroin obtained above are put into the lithium bromide aqueous solution of 47% (weight percent) of 266.4 grams, the silk bromide dissolves after stirring, and the silk fibroin / lithium bromide aqueous solution that the fibroin content is 10% (weight percent), adds water After 3-fold dilution, filtration, and dialysis through a hollow fiber membrane to remove lithium bromide to obtain 1480 g of an aqueous solution of regenerated silk protein with a silk protein content of 2% (weight percent).

[0017] The obtained regenerated fibroin aqueous solution is placed in a constant temperature and h...

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
Login to view more

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Login to view more

Abstract

The production process of superfine regenerated silk protein fiber features that silk protein is first dissolved in inorganic salt, the solution is desalted and concentrated to produce high concentration and high spinnability regenerated silk protein aqua, and the aqua is electrostatically spun directly into the superfine regenerated silk protein fiber. The fiber has excellent performance, has stable silk protein-II crystal structure without need of post-treatment. The present invention uses water without toxicity and harm as solvent to make the superfine fiber good in biocompatibility and suitable for use as biomedicine material. The present invention has wide material source including common silk and silk leftover, and the product of superfine regenerated silk protein fiber has its specification regulated with the use.

Description

technical field [0001] The invention relates to a method for producing regenerated protein fibers in chemical fiber manufacturing, in particular to a process technology for spinning regenerated fibroin superfine fibers by electrospinning with a high-concentration regenerated fibroin aqueous solution as spinning stock solution. Background technique [0002] Silk is a natural fiber with excellent properties, which has been used as a high-end clothing material for thousands of years. With the continuous development of spinning technology, it is hoped that silk fibers of different specifications can be obtained so that they can be used in military, biological, medical and textile fields. In order to meet various special needs in the above-mentioned fields, and at the same time overcome the limitations of natural conditions such as geography and climate, to produce regenerated silk protein fibers of different specifications and yields according to human wishes, it is necessary to...

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
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): D01D5/06D01F4/02
Inventor 胡学超王洪邵惠丽张耀鹏
Owner DONGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap