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Preparation method for wool keratin regenerated cellulose fiber

A wool keratin and regenerated cellulose technology is applied in the field of preparation of wool keratin regenerated cellulose fibers, can solve the problems of affecting fibrin content and fiber strength, small protein molecular weight, low protein yield, etc., and achieves increased cross-linking Fixing effect, overcoming the effect of low protein content and increasing protein content

Active Publication Date: 2014-08-27
JIANGSU GOLDSUN TEXTILE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods often have disadvantages such as low protein yield, small protein molecular weight, and complicated process, which will not only lead to waste of resources, but also affect the final protein content in the fiber and fiber strength and other indicators.

Method used

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  • Preparation method for wool keratin regenerated cellulose fiber
  • Preparation method for wool keratin regenerated cellulose fiber
  • Preparation method for wool keratin regenerated cellulose fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The keratin solution prepared by comparative chemical method, biological enzyme method and the present invention.

[0024] The chemical method mainly breaks the protein macromolecular chain through acid-base hydrolysis or breaks the disulfide bond in (between) the protein macromolecules through redox to achieve the purpose of dissolution. There are mainly acid-base hydrolysis, oxidation and reduction methods, etc.

[0025] The biological enzyme method is to use the specificity of keratinase to degrade keratin to obtain a keratin solution.

[0026] The invention adopts the combination method of biological enzymatic method and reduction method, adding reducing agent to open the disulfide bond between protein molecules (internal), and then adding keratinase to prepare keratin solution.

[0027]

[0028]

[0029] It can be seen from the above table that the keratin solution prepared by the present invention not only has high dissolution efficiency, but also has relat...

Embodiment 2

[0031] Preparation of viscose solution: use cotton pulp with a degree of polymerization of 500 and a mass content of cellulose of 93.5% to prepare spinning viscose solution through the processes of impregnation, pressing, crushing, aging, yellowing, continuous dissolution, filtration, and deaeration. . The obtained methyl fiber mass content 8.9%, NaOH mass content 6.2%, viscosity (falling ball method) 45s, maturity (10%NH 4 Cl) 8.4ml is the viscose solution for use.

[0032] Falling ball method: the time required for a 2mm steel ball to fall 20cm from the viscose solution.

[0033] Preparation of keratin solution: In the reactor, prepare a keratin solution with a mass fraction of 8% with distilled water, first add NaHSO that accounts for 1% of wool protein powder to the solution 3 , and then add keratinase accounting for 1% of the mass fraction of wool protein powder to the reaction kettle solution, adjust the pH of the solution to 7.5-8.0 with NaOH, then raise the temperatu...

Embodiment 3

[0040] Preparation of viscose solution: use cotton pulp with a degree of polymerization of 520 and a mass content of cellulose of 92.5% to prepare spinning viscose solution through the processes of impregnation, pressing, crushing, aging, yellowing, continuous dissolution, filtration, and defoaming. . The obtained methyl fiber mass content 8.7%, NaOH mass content 6.3%, viscosity (falling ball method) 63s, maturity (10%NH 4 Cl) 8.6ml is the viscose solution for use.

[0041] Preparation of pre-crosslinked gluten protein solution: in the reaction kettle, prepare a 10% wool protein powder solution with a mass fraction of distilled water, first add 1% Na 2 SO 3 , and then add keratinase accounting for 0.5% of the mass fraction of wool protein powder to the reaction kettle solution, adjust the pH of the solution to 7.5-8.0 with NaOH, then raise the temperature of the solution to 50-60° C., and keep it warm for 1 hour. Add 0.5% sodium hexametaphosphate and 0.5% monoglyceride stea...

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Abstract

A provided preparation method for wool keratin regenerated cellulose fiber comprises the concrete steps: firstly preparing a viscose-rayon spinning solution, then preparing a wool keratin solution, then mixing the viscose-rayon spinning solution and the wool keratin solution, then adding a crosslinking agent, mixing and performing wet-process spinning, so as to obtain wool keratin regenerated cellulose fiber. The wool keratin regenerated cellulose fiber prepared by employing the method has the protein content of 6% or more, and the production technology is simple in process and high in production efficiency.

Description

technical field [0001] The invention belongs to the technical field of textile production, and in particular relates to a preparation method of wool keratin regenerated cellulose fiber. Background technique [0002] Natural keratin exists widely in nature and has abundant sources. About hundreds of thousands of tons of keratin raw materials (such as hair, feathers, scales, etc.) harm to the ecological environment. Therefore, recycling keratin can not only protect the environment, but also obtain good economic benefits. Natural keratin itself has many excellent properties, such as good mechanical properties, chemical properties superior to synthetic materials, good biodegradability and compatibility, etc., making it play a basic supporting role in many biological tissue structures , which is also the basic performance that people need to have when using various recycled materials. Therefore, making keratin into high-tech and products has potential application value and can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/02D01F8/18D01F1/10
Inventor 毛军陈红霞陆鹏丁可敬
Owner JIANGSU GOLDSUN TEXTILE SCI & TECH
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