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Skin-core double-layer leather protein fiber and preparing method thereof

A feather protein and double-layer technology is applied in the field of skin-core double-layer feather protein fiber and its preparation, which can solve the problems of incompatibility of fiber mechanical properties and functionality, loss of protein functionality, poor mechanical properties of feather protein fibers, and the like. To achieve the effect of economic value and environmental value

Active Publication Date: 2018-12-14
东隆家纺股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] According to the current patent technology and related reports on the development and utilization of feather protein fibers, it can be known that the mechanical properties of feather protein fibers are poor, or the protein functionality is lost, or the mechanical properties and functionality of the fibers cannot be combined. Technology has affected the industrialization of feather protein fibers, and there is still a need for technological innovation

Method used

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  • Skin-core double-layer leather protein fiber and preparing method thereof
  • Skin-core double-layer leather protein fiber and preparing method thereof
  • Skin-core double-layer leather protein fiber and preparing method thereof

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Effect test

Embodiment 1

[0034] A method for preparing a skin-core double-layer feather protein fiber, comprising the following steps:

[0035] 1) Preparation of feather protein powder: waste feather down is placed in urea / sodium hydroxide system, urea concentration is 7wt%, sodium hydroxide concentration is 3wt%, the mass ratio of feather down and urea / sodium hydroxide system is 1: 50, stirring and dissolving at room temperature for 12 hours to obtain a feather protein solution, after dialysis treatment, to obtain a pure protein solution, and then to obtain feather protein powder through the processes of concentration, evaporation, drying and grinding; figure 2 In order to prepare the optical micrograph of the process of dissolving feathers in urea / sodium hydroxide system, the magnification is 400 times; from left to right, they are dissolved for 4, 7, and 11 hours;

[0036] 2) Preparation of the core layer spinning solution: the feather protein powder, phytic acid and methanol prepared in step 1) w...

Embodiment 2

[0040] A method for preparing a skin-core double-layer feather protein fiber, which prepares a skin-core double-layer feather protein fiber with super-strong thermal insulation, comprising the following steps:

[0041]1) preparation of feather protein powder: with embodiment 1;

[0042] Preparation of the core layer spinning solution: the feather protein powder, phytic acid and methanol prepared in step 1) were successively dissolved in hexafluoroisopropanol solvent, and the mass ratio of feather protein powder, phytic acid and methanol was 100:3:5 , stirred until uniformly dissolved, and prepared into a 16wt% protein solution, then adding nanometer zirconium oxychloride to the protein solution to make its mass percentage in the solution 1.25%, then adding sodium alginate to make its mass concentration be 0.2%, as a dispersion stabilizer, fully stirred until uniformly dispersed, ready for use;

[0043] 3) Preparation of cortex spinning solution: dissolve the feather protein p...

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Abstract

A skin-core double-layer leather protein fiber and a preparing method thereof are provided. Compared with the prior art, the fiber is prepared by preparing a core-layer spinning solution and a skin-layer spinning solution, and spinning with coaxial needles to obtain the fiber. Through controlling mass concentrations of the spinning solutions of the inner and outer needles which are coaxial, skin and core layers of the fiber are adjustable in ratio, have different aggregate structures and show different moisture absorbing properties. A nanometer component can be doped in the feather protein core-layer spinning solution to prepare a feather protein functional fiber having electrical conduction, automatic heating, insulation and other functions, and requirements that the skin and core layersare different in structure characteristics and moisture absorption performance of the skin layer is not decreased can be satisfied. A nanometer functional finishing agent and like can be added to theskin-layer spinning solution to prepare a feather protein fiber having an ultrahigh thermal insulation function. The skin-core double-layer leather protein fiber prepared by the method can utilize waste down and has economical value and environment protection value.

Description

technical field [0001] The invention belongs to the field of textiles, and in particular relates to a skin-core double-layer feather protein fiber and a preparation method thereof. Background technique [0002] my country is a big country in the production and consumption of feathers and down, rich in down resources. Feather and down are composed of keratin, which is a natural protein resource; if the feather and down protein are utilized, significant economic benefits will be obtained. At the same time, a large amount of feathers and down are discarded every year in our country. Under natural conditions, it takes 5-8 years for down to degrade. During the degradation process, the fibers of feathers and down are deteriorated, which is easy to breed bacteria and bring serious biological damage to the environment. Pollution and other issues, so the utilization of feather protein also has environmental benefits. [0003] According to the current patent technology and related r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/02D01F1/10D01D1/02D01D5/34D01D5/04
CPCD01D1/02D01D5/04D01D5/34D01F1/10D01F8/02
Inventor 王宗乾孙瑞霞吴开明谢伟
Owner 东隆家纺股份有限公司
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