Preparation method for gluten protein regenerated cellulose fiber

A technology of regenerated cellulose and gluten protein, applied in the direction of wet spinning, artificial filament made of viscose, etc., can solve the problems of damage, poor fiber spinnability, etc., achieve good fixation effect, increase hydrolysis degree, and relatively good capacitive effect

Active Publication Date: 2014-01-15
JIANGSU GOLDSUN TEXTILE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fibers produced by this method have poor spinnability, and the acetal liquid in the process of hydroformylation also has certain damage to the human body.

Method used

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  • Preparation method for gluten protein regenerated cellulose fiber
  • Preparation method for gluten protein regenerated cellulose fiber
  • Preparation method for gluten protein regenerated cellulose fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: the preparation method one of gluten protein regenerated cellulose fiber

[0027] Preparation of viscose solution: Cotton pulp with a degree of polymerization of 500 and a mass content of cellulose of 93.5% is used to prepare spinning viscose solution through the processes of impregnation, pressing, crushing, aging, yellowing, continuous dissolution, filtration, and defoaming. . The mass content of the obtained methyl fiber is 8.9%, the mass content of NaOH is 6.2%, the viscosity (falling ball method) is 45s, and the maturity (10%NH 4 Cl) 8.4ml, which is the viscose solution to be used.

[0028] Falling ball method: the time required for a 2mm steel ball to fall 20cm from the viscose solution.

[0029] Preparation of pre-crosslinked gluten protein solution:

[0030] In the reactor, use distilled water to prepare a gluten solution with a mass fraction of 8%, add proteolytic enzymes accounting for 0.1% gluten mass fraction to the reactor solution, adjust ...

Embodiment 2

[0036] Embodiment 2: the preparation method two of gluten protein regenerated cellulose fiber

[0037] Preparation of viscose solution: Cotton pulp with a degree of polymerization of 520 and a mass content of cellulose of 92.5% is used to prepare spinning viscose solution through the processes of impregnation, pressing, crushing, aging, yellowing, continuous dissolution, filtration, and defoaming. . The mass content of the obtained methyl fiber is 8.7%, the mass content of NaOH is 6.3%, the viscosity (falling ball method) is 63s, and the maturity (10%NH 4 Cl) 8.6ml, which is the viscose solution to be used.

[0038] Preparation of pre-crosslinked gluten protein solution:

[0039] In the reactor, use distilled water to prepare a gluten solution with a mass fraction of 12%, add proteolytic enzymes accounting for 0.5% gluten mass fraction to the reactor solution, adjust the pH of the solution to 10, and then heat the solution To 60 ℃, heat preservation reaction for 6h. Add 4%...

Embodiment 3

[0042] Embodiment 3: the preparation method three of gluten protein regenerated cellulose fiber

[0043] Preparation of viscose solution: Cotton pulp with a degree of polymerization of 500 and a mass content of cellulose of 92.3% is used to prepare spinning viscose solution through the processes of impregnation, pressing, crushing, aging, yellowing, continuous dissolution, filtration, and defoaming. . The mass content of the obtained methyl fiber is 8.6%, the mass content of NaOH is 6.1%, the viscosity (falling ball method) is 63s, and the maturity (10%NH 4 Cl) 8.3ml, which is the viscose solution to be used.

[0044] Preparation of pre-crosslinked gluten protein solution:

[0045] In the reactor, use distilled water to prepare a gluten solution with a mass fraction of 10%, add proteolytic enzymes accounting for 0.1% gluten mass fraction to the reactor solution, adjust the pH of the solution to 9, and then heat the solution To 55°C, keep the reaction for 5.5h. Add 7% sodiu...

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Abstract

The invention discloses a preparation method for a gluten protein regenerated cellulose fiber. The method comprises the following steps: preparing a viscose spinning stock solution, preparing a gluten protein solution, preparing 8-12 percent by mass of a gluten flour solution, adding sodium hydroxide taking 4-10 percent by mass of the gluten flour solution and a dispersing agent taking 0.1 to 1 percent by mass of the gluten flour solution, stirring and reacting for 5 to 6 h at normal temperature, adding a cross-linking agent, reacting for 0.5 to 2 h at the normal temperature, obtaining the gluten protein solution after filtering, mixing the prepared gluten protein solution and the viscose spinning stock solution, and then performing wet spinning. The gluten protein regenerated cellulose fiber prepared through the method overcomes the problems of high production cost and difficulty in industrialization caused by high price of an auxiliary agent; by adopting an auxiliary agent with low price to perform protein pre-cross-linking, the loss of protein is avoided, and the protein content of the fiber is increased; and the method does not need a hydroformylation step, shortens the production technology process, and improves the production efficiency.

Description

technical field [0001] The invention relates to a raw material for textile industry and a manufacturing method thereof, in particular to a preparation method of gluten protein regenerated cellulose fiber. Background technique [0002] Gluten protein was first used as a by-product of wheat starch production, and it was used as feed together with fiber. The protein content in gluten is more than 80%, and the amino acid composition is relatively complete. It is a nutritious, high-quality and low-cost vegetable protein, which is used in food as a strong flour additive. According to the solubility characteristics of protein in wheat grain, it is divided into four kinds of proteins: albumin, globulin, gliadin (gliadin) and glutenin. Gluten is a renewable natural polymer protein with biodegradability and biocompatibility, especially in non-food chemical applications of gluten. By using physical, chemical, enzymatic methods to modify gluten protein, new polymer functional material...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/08D01D5/06
Inventor 胡青青陈红霞陆鹏丁可敬
Owner JIANGSU GOLDSUN TEXTILE SCI & TECH
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