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Preparation of regenerated keratin solution and wet spinning method

A technology of keratin and solution, which is applied in the direction of single-component protein rayon, wet spinning, textiles and papermaking, etc. It can solve the problems that keratin solution cannot meet the requirements of wet spinning and the molecular weight of keratin lysates is low. Achieve good spinnability, simple dissolution process, and high keratin concentration

Inactive Publication Date: 2014-10-22
河南鼎大生物科技有限公司
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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 defects of low molecular weight of keratin lysates caused by the existing animal hair dissolving method, and the keratin solution cannot meet the requirements of wet spinning, and to invent a method that combines physical and chemical methods to dissolve animal hair. The preparation of the regenerated keratin solution of spinning and the method for wet spinning

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0041] (1) Wash animal hair with a non-ionic washing solution. In the non-ionic washing solution, the mass of non-ionic surfactants accounts for 1.2% of the total mass of the solution, and the mass of additives accounts for 4.5% of the total mass of the solution; The ratio of the mass of the non-ionic washing solution to 1:22 is to put the animal hair into the non-ionic washing solution. The temperature of the non-ionic washing solution is 50°C and the pH value is 7.0. After drying, the drying temperature is 90°C;

[0042] (2) Grinding the animal hair obtained in step (1) into a fine powder with a diameter of 800 nanometers by using an airflow ultrafine pulverizer;

[0043] (3) Soak the fine powder obtained in step (2) in zinc chloride (ZnCl 2 ) and urea (CO(NH 2 ) 2 ) for swelling treatment in a mixed aqueous solution, in which zinc chloride (ZnCl 2 ) is 35% of the total mass of the mixed solution, and urea (CO(NH 2 ) 2 ) accounted for 20% of the total mass of the mixed...

Embodiment example 2

[0058] (1) Wash animal hair with a non-ionic washing solution. In the non-ionic washing solution, the mass of non-ionic surfactants accounts for 2.4% of the total mass of the solution, and the mass of additives accounts for 0.8% of the total mass of the solution; The ratio of 1:30 to the mass of the non-ionic washing solution is to put the animal hair into the non-ionic washing solution. The temperature of the non-ionic washing solution is 45°C and the pH value is 7.5. After drying, the drying temperature is 70°C;

[0059] (2) Grinding the animal hair obtained in step (1) into a fine powder with a diameter of 600 nanometers by using an airflow ultrafine pulverizer;

[0060] (3) Soak the fine powder obtained in step (2) in zinc chloride (ZnCl 2 ) and urea (CO(NH 2 ) 2 ) for swelling treatment in a mixed aqueous solution, in which zinc chloride (ZnCl 2 ) is 25% of the total mass of the mixed solution, urea (CO(NH 2 ) 2 ) accounted for 15% of the total mass of the mixed sol...

Embodiment example 3

[0075] (1) Wash animal hair with a non-ionic washing solution. In the non-ionic washing solution, the mass of non-ionic surfactant accounts for 0.8% of the total mass of the solution, and the mass of additives accounts for 4.0% of the total mass of the solution; The ratio of 1:18 to the mass of the non-ionic washing solution is to put the animal hair into the non-ionic washing solution. The temperature of the non-ionic washing solution is 60°C and the pH value is 8.0. After drying, the drying temperature is 50°C;

[0076] (2) Grinding the animal hair obtained in step (1) into a fine powder with a diameter of 500 nanometers by using an airflow ultrafine pulverizer;

[0077] (3) Soak the fine powder obtained in step (2) in zinc chloride (ZnCl 2 ) and urea (CO(NH 2 ) 2 ) for swelling treatment in a mixed aqueous solution, in which zinc chloride (ZnCl 2 ) is 18% of the total mass of the mixed solution, and urea (CO(NH 2 ) 2 ) accounted for 15% of the total mass of the mixed ...

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Abstract

The invention belongs to the field of natural high polymer materials, and relates to a method for preparation and wet spinning of a regenerative keratin solution. The method comprises the following steps of: degreasing raw materials of coarse animal hairs, wools and waste wool textiles by using a non-ionic surface active agent, wherein the coarse animal hairs include pig hairs, sheep wools, rabbit hairs, camel hairs, yak hairs and the like, and the wools and waste wool textiles do not have spinning and weaving utility values; grinding the raw materials into nano-scale superfine powder by using a superfine grinding technology; fully swelling the keratin superfine powder by using a mixed solution of ZnCl2 and urea, wherein the mixed solution has a swelling function; and dissolving the fully-swelled keratin superfine powder by using an ionic liquid of 1-butyl-3-methylimidazole chloride or 1-ethyl-3-methylimidazole diethyl phosphate to obtain a regenerative keratin spinning solution which has the characteristics of high keratin concentration, complete dissolution and high molecular weight, and regenerative keratin fibers can be obtained by adopting wet spinning. By adopting the method, waste resources are recycled, so that the method has broad prospects and application values, and accords with the current research concept and direction of environmental protection.

Description

technical field [0001] The invention belongs to the application field of natural polymer materials, and relates to a technology for regeneration and utilization of animal hair, in particular to a method for preparing a regenerated keratin solution suitable for wet spinning by using animal hair and a wet spinning method thereof. Background technique [0002] In today's increasingly serious environmental problems, the reuse of waste resources has received widespread attention. Every year in my country, a large amount of low-quality wool, waste wool, wool spinning waste and many other animal hairs are disposed of in the form of waste, which not only causes environmental pollution, but also causes waste of keratin resources. The waste animal hair is dissolved to make keratin solution, and then the keratin solution is prepared into regenerated keratin fibers through a coagulation bath (a coagulation bath is a bath liquid that coagulates keratin solution into fibers), so as to rea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L89/04D01F4/00D01D5/06
CPCY02P20/582
Inventor 赵振强
Owner 河南鼎大生物科技有限公司
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