Method for preparing regenerated cellulose fiber from fine corn fiber in corn starch milk production process

A technology of regenerated cellulose and corn fiber, which is applied in the direction of single-component cellulose rayon, fiber chemical characteristics, spinning solution preparation, etc. It can solve the problems of affecting the extraction and processing effect, high cost, and non-drying of fibers. Achieve the effects of increasing industrial utilization value, good textile mechanical properties, and avoiding preparation steps

Inactive Publication Date: 2014-02-05
SHANDONG XIWANG SUGAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing fine corn fiber extraction method is to directly enter the fine fiber after needle milling, sieving and washing into the pressure sieve, and then enter the squeeze dryer for final dehydration after water separation, and the under-sieve enters the process water, and then uses The process water goes to wash the fibers, and the fine fibers block the screen, and the water separation and washing effect cannot be achieved. The fine fibers containing a large amount of water enter the squeeze dryer and block the filter screen of the dehydrator, causing the fibers to not be squeezed dry, and the fibers with high water content enter The dryer brings pressure to the dryer. Even if more steam is consumed, the capacity of the dryer is often not enough, which affects the extraction and processing effect.
The processing method of the corn fine fiber has complicated steps and relatively high cost

Method used

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  • Method for preparing regenerated cellulose fiber from fine corn fiber in corn starch milk production process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for preparing regenerated cellulose fiber from fine corn fiber in a cornstarch milk production process, comprising the steps of:

[0027] S1: Sieve out the fine fibers eluted after needle milling, sieving and washing by pressure, and use the obtained fine corn fiber slurry for later use;

[0028] S2: Add the butyl-3-methylimidazolium chloride salt solution with a moisture content of 2.0% into the dissolution kettle, heat to 100°C, then add the fine corn fiber slurry prepared in step S1, and add the fine corn fiber prepared in step S1 The weight ratio of fiber pulp to 1-butyl-3-methylimidazolium chloride salt solution is 1:6. After stirring, it will swell for 25 minutes to make it reach the maximum swelling ratio, and then stir and dissolve for 4 hours under the pressure of -0.2MPa to remove excess water to fully dissolve the cellulose to obtain a cellulose spinning solution;

[0029] S3: Use a multi-hole spinning device with a metering pump to carry out dry-je...

Embodiment 2

[0031] A method for preparing regenerated cellulose fiber from fine corn fiber in a cornstarch milk production process, comprising the steps of:

[0032] S1: Sieve out the fine fibers eluted after needle milling, sieving and washing by pressure, and use the obtained fine corn fiber slurry for later use;

[0033] S2: Add the butyl-3-methylimidazolium chloride salt solution with a moisture content of 1.5% into the dissolution kettle, heat to 100°C, then add the fine corn fiber pulp prepared in step S1, and add the fine corn prepared in step S1 The weight ratio of fiber pulp to 1-butyl-3-methylimidazolium chloride salt solution is 1:8. After stirring, it will swell for 30 minutes to make it reach the maximum swelling ratio, and then stir and dissolve for 5 hours under the pressure of -0.3MPa to remove excess water to fully dissolve the cellulose to obtain a cellulose spinning solution;

[0034] S3: Use a multi-hole spinning device with a metering pump to carry out dry-jet wet sp...

Embodiment 3

[0036] A method for preparing regenerated cellulose fiber from fine corn fiber in a cornstarch milk production process, comprising the steps of:

[0037] S1: Sieve out the fine fibers eluted after needle milling, sieving and washing by pressure, and use the obtained fine corn fiber slurry for later use;

[0038] S2: Add the butyl-3-methylimidazolium chloride salt solution with a moisture content of 2.5% into the dissolving kettle, heat to 100°C, then add the fine corn fiber pulp prepared in step S1, and add the fine corn prepared in step S1 The weight ratio of fiber pulp to 1-butyl-3-methylimidazolium chloride salt solution is 1:4. After stirring, it will swell for 20 minutes to make it reach the maximum swelling ratio, and then stir and dissolve under the pressure of -0.1MPa for 3 hours to remove excess water to fully dissolve the cellulose to obtain a cellulose spinning solution;

[0039] S3: Use a multi-hole spinning device with a metering pump to carry out dry-jet wet spi...

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PUM

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Abstract

The invention belongs to the technical field of deep corn machining, and in particular relates to a method for preparing a regenerated cellulose fiber from fine corn fibers in the corn starch milk production process. The method for preparing the regenerated cellulose fiber from the fine corn fiber in the corn starch milk production process comprises the following steps of S1. preparing fine corn fiber pulp; S2. preparing a cellulose spinning solution; and S3. preparing recycled cellulose fibers. The recycled cellulose fibers prepared by using the method provided by the invention is good in spinning mechanical property which is superior to that of ordinary viscose; and moreover due to adoption of the method, the complex preparation steps in the ordinary preparation method are avoided, the recycled cellulose fiber which can be woven can be prepared at one time, and the industrial utilization values of the fine corn fibers are improved.

Description

technical field [0001] The invention belongs to the technical field of corn deep processing, and in particular relates to a method for preparing regenerated cellulose fibers from fine corn fibers in the production process of corn starch milk. Background technique [0002] my country is a large agricultural country with rich resources of agricultural products. The total output and commodity volume of major agricultural products rank among the top in the world. Therefore, deep processing of agricultural products is a promising industry. [0003] Corn is one of the most important food crops grown by humans, accounting for about a quarter of the world's total food crop production. Corn is also the main food crop variety in my country, and its total output is second only to rice and wheat, ranking second in the world. Its comprehensive processing is an economic field waiting to be developed urgently. [0004] Corn has the advantages of fast maturity, high yield, wide planting a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/00D01D1/02D01D1/09D01D5/04
Inventor 王棣吉晓兵陶兴发葛金华何玉梅
Owner SHANDONG XIWANG SUGAR
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