Soybean protein/alginate /cellulose fibre and preparation method thereof

A technology of cellulose fiber and soybean protein, applied in alginate rayon, cellulose/protein conjugated rayon, wet spinning, etc., can solve the impact of fiber processing procedures, low protein, environmental pollution, etc. problems, achieve good skin-friendly health care, high protein content, and reduce environmental hazards

Active Publication Date: 2008-04-30
潍坊欣龙生物材料有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the completely different particularities of the three materials, at present, people mostly use one of the above three materials to produce fibers or use two kinds of materials to produce functional mixed fibers, but the existing production contains protein in soybean protein fibers. The content is generally low, so that the health care effect of the composite fiber is limited to a certain extent, and if the protein content in the composite fiber is increased, the physical performance index of the composite fiber will drop significantly, which will greatly affect the subsequent fiber processing procedures. Moreover, the coagulation baths currently used in the spinning and forming of the spinning dope all contain zinc sulfate, and the zinc ions in it not only cause serious pollution to the environment, but also have a denaturing effect on the protein, affecting the performance of soybean protein and reducing The performance of soybean protein and cellulose composite fiber
At the same time, due to the different components of the coagulation bath required by the different components in the spinning dope, it is difficult to adapt to the molding requirements of multiple components by using the conventional one-bath method. However, if too many components are added to the coagulation bath, it will cause coagulation. Difficulties in processes such as bath evaporation and crystallization affect the normal cycle production operation

Method used

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  • Soybean protein/alginate /cellulose fibre and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Dissolving soybean protein in 4.0% sodium hydroxide, and adding sodium sulfite according to 0.005% of the weight of soybean protein, the dissolution temperature is 20°C, to obtain a soybean protein solution with a soybean protein content of 13.0%;

[0017] Under the temperature condition of 20° C., the alginate was dissolved in 20 g / l dilute alkali solution according to the weight ratio of 1:30, and the alginate solution was obtained after continuous stirring for 24 hours.

[0018] Cotton pulp with a degree of polymerization of 500 is used, soaked and alkalized, crushed by pressing, and aged to control the copper viscosity of 10mpa.s to obtain α-cellulose 28.0%, NaOH 18.0% alkali cellulose, alkali cellulose and CS 2 Yellowing reaction, and be dissolved in the sodium hydroxide; Then add the auxiliary agent V-315 of relative α-cellulose amount 1%, obtain viscosity 200s, maturity (15%NH 4 Cl) value 12.0ml, alpha-cellulose 8.0%, sodium hydroxide 4.0% high viscosity cellulos...

Embodiment 2

[0024]The soybean protein is dissolved in 5.0% sodium hydroxide, and sodium sulfite is added according to 0.015% of the weight of the soybean protein, and the dissolving temperature is 45° C. to obtain a soybean protein mother liquor with a soybean protein content of 30.0%.

[0025] Under the temperature condition of 55° C., the alginate was dissolved in 20 g / l dilute lye according to the weight ratio of 1:70, and the alginate solution was obtained after continuous stirring for 4 hours.

[0026] Cotton pulp with a degree of polymerization of 800 and wood pulp with a degree of polymerization of 600 are used to mix, the mixing ratio is 5:1, alkalized by dipping, crushed by pressing, and the aging copper viscosity is controlled to 15mpa.s to obtain α-cellulose 29.5%, NaOH17.5% alkali cellulose, alkali cellulose and CS 2 Yellowing reaction, and be dissolved in sodium hydroxide; Then add the auxiliary agent V-315 of 2.5% relative to α-cellulose amount, obtain viscosity 600s, maturi...

Embodiment 3

[0032] The soybean protein is dissolved in 4.5% sodium hydroxide, and sodium sulfite is added according to 0.008% of the weight of the soybean protein, the dissolving temperature is 35°C, and the soybean protein content is 18.5%, so as to obtain the soybean protein solution.

[0033] Under the temperature condition of 45° C., the alginate was dissolved in 20 g / l dilute alkali solution according to the weight ratio of 1:50, and the alginate solution was obtained after 12 hours of continuous stirring.

[0034] Cotton pulp with a degree of polymerization of 700 and sugarcane pulp with a degree of polymerization of 500 are mixed in a mixing ratio of 5:1, alkalized by dipping, crushed by pressing, and aged to control copper viscosity of 12mpa.s to obtain α-cellulose 30%, NaOH16 .5% alkali cellulose, mix alkali cellulose with CS 2 Yellowing reaction, and be dissolved in sodium hydroxide; Then add the auxiliary agent V-315 of 1.5% relative to α-cellulose amount, obtain viscosity 300s...

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Abstract

The invention discloses a soybean protein/alginate/cellulose fiber and a preparation method thereof. In order to obtain a spinning stock solution by using a soybean protein solution, an alginate solution and a high-viscosity cellulose solution, a multi-stage coagulation bath is used for each The two components are molded separately to obtain fibers in which soybean protein accounts for 15-60% of the total weight of the three components, alginate accounts for 3-8% of the total weight of the three components, and cellulose accounts for 32-82% of the total weight of the three components. All levels of coagulation baths in the present invention adopt zinc-free forming technology, which avoids protein denaturation caused by heavy metal salts and environmental pollution caused by zinc salts, reduces environmental hazards in the fiber production process, and the main distribution of protein and alginic acid in the prepared fibers is In the outer layer of the fiber, the fiber made can give full play to the health-care properties of protein and alginic acid. It not only has high protein content, good health-care properties, but also has good water-absorbing and salt-absorbing properties, and good processing performance.

Description

technical field [0001] The invention relates to a composite fiber made of protein, alginate and cellulose and a preparation method thereof, belonging to the technical field of new chemical fiber materials. technical background [0002] The raw material of cellulose fiber comes from natural and renewable cellulose. Under the background of increasingly tense petroleum resources, cellulose fiber shows vigorous development vitality. Soybean protein fiber contains a variety of amino acids, which have a certain health care effect on the human body. And its fabric has a silk fabric style, which is widely welcomed in the market at present, and alginate (mainly composed of calcium alginate, and also contains a small amount of alginic acid and sodium salt) is a natural polymer mixture, which can Wet spun into fibers, and the calcium ions in the fibers can ion-exchange with the sodium ions in human wound secretions to form a wet gel at the affected mouth, forming a wet wound healing en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/02D01F9/04D01D5/06
Inventor 田素峰刘海洋刘建华姜明亮李琳黄鲁
Owner 潍坊欣龙生物材料有限公司
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