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Technique for splitting silk

A process method and silk technology, applied in fiber processing, animal fiber, textile material processing and other directions, can solve problems such as low yield of silk fibroin nanofibers, and achieve the effects of excellent mechanical properties, suitable for mass production, and simple process

Inactive Publication Date: 2017-03-22
广西环江意桐茧丝绸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a process for silk fiber splitting, which can solve the problem of low productivity of existing silk nanofibers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The processing method of the present embodiment silk fiber splitting comprises the following steps:

[0014] A. Natural silk is degummed by enzyme first, inject water into the training tank, put silk, heat the water temperature to 40°C, add neutral protease 2g / L, stir and hydrolyze for 40min, and put the silk fiber obtained by enzyme degumming into Soak in 0.5% owf sodium carbonate solution for 30 minutes, and control the soaking temperature at 50°C;

[0015] B. Under the condition of 48°C, the soaked silk fibroin fiber is divided into fibers by ultrasonic wave, the processing power of ultrasonic wave is 50W, the frequency is 5KHz, and the processing time is 2h;

[0016] C. Remove the soaking solution, wash in water at 40° C., and then wash with cold water to obtain silk fibroin nanofibers.

Embodiment 2

[0018] The processing method of the present embodiment silk fiber splitting comprises the following steps:

[0019] A. Natural silk is degummed by enzyme first, inject water into the training tank, put silk, heat the water temperature to 42°C, add neutral protease 1.5g / L, stir and hydrolyze for 48min, degumming the silk fiber obtained by enzyme, put Soak in 0.5% owf sodium carbonate solution for 45 minutes, and control the soaking temperature at 45°C;

[0020] B. Under the condition of 49°C, the soaked silk fibroin fiber is divided into fibers by ultrasonic wave, the processing power of ultrasonic wave is 55W, the frequency is 6KHz, and the processing time is 1.5h;

[0021] C. Remove the soaking solution, wash in water at 45° C., and then wash with cold water to obtain silk fibroin nanofibers.

Embodiment 3

[0023] The processing method of the present embodiment silk fiber splitting comprises the following steps:

[0024] A. Natural silk is degummed by enzyme first, inject water into the training tank, put silk, heat the water temperature to 45°C, add neutral protease 1g / L, stir and hydrolyze for 60min, and put the silk fiber obtained by enzyme degumming into Soak in 0.5% owf sodium carbonate solution for 60 minutes, and control the soaking temperature at 40°C;

[0025] B. Under the condition of 50°C, the soaked silk fibroin fiber is divided into fibers by ultrasonic wave, the processing power of ultrasonic wave is 60W, the frequency is 8KHz, and the processing time is 1h;

[0026] C. Remove the soaking liquid, wash in water at 50° C., and then wash with cold water to obtain silk fibroin nanofibers.

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Abstract

The invention discloses a technique for splitting silk, and relates to the technical field of processing treatment of silk. The technique for splitting silk comprises the following steps: carrying out enzyme degumming on natural silk to obtain silk fibroin; soaking the silk fibroin in a sodium carbonate solution for 30-60 min, wherein the soaking temperature is controlled to be 40-50 DEG C; carrying out splitting treatment on the soaked silk fibroin by ultrasonic waves at the temperature of 48-50 DEG C, wherein ultrasonic wave treatment power is 50-60 W, the frequency is 5-8 KHz, and the treating time is 1-2 h; and removing soaking liquid, cleaning the silk fibroin in water at the temperature of 40-50 DEG C, and then cleaning the silk fibroin with cold water to obtain fibroin nanofibers. The problem that the yield of existing fibroin nanofibers is low is solved.

Description

technical field [0001] The invention relates to the technical field of silk processing, in particular to a silk fiber dividing process. Background technique [0002] Silk is an excellent natural filament fiber mainly used in the field of textile products. Silk is composed of silk fibroin and sericin coated on the surface of silk fibroin. Sericin accounts for about 25% of the total weight of silk. The silk obtained after silk degumming Silk fiber, the main components are various amino acids such as tyrosine, alanine, serine, proline, tyrosine, etc. It is a kind of deep and elastic protein, and a single silk fiber is composed of many silk fibroin Due to its small diameter and large specific surface area, silk fibroin nanofibers can be used in medical and health fields. Existing silk fibroin nanofibers are mainly prepared by electrospinning, which has complicated process and low yield, which greatly limits the application of silk fibroin nanofibers in the medical field. Cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01C3/02D06B13/00D06M11/76D06M101/10
CPCD01C3/02D06B13/00D06M11/76D06M2101/10
Inventor 谭政荣周金坤姚建良莫兰社覃志臣
Owner 广西环江意桐茧丝绸有限公司
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