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Preparing method of high-strength regenerated cellulose fiber

A technology of regenerated cellulose and cellulose A, which is applied in the direction of wet spinning, stretch spinning, and artificial filament made of viscose, which can solve the problems of poor fastness, low strength in dry and wet states, elasticity and durability. Poor abrasiveness and other problems, to achieve the effect of excellent physical and mechanical properties, high dry and wet strength, good spinnability

Inactive Publication Date: 2017-02-22
山东银鹰化纤有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The disadvantages of viscose fiber are lower dry and wet strength than synthetic fiber, poor fastness, low wet modulus, high shrinkage and easy deformation, poor elasticity and wear resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: A kind of preparation method of high-strength regenerated cellulose fiber, it is characterized in that: described preparation method comprises the following steps:

[0025] (1) Preparation of cellulose sulfonate: fully mix cotton pulp, wood pulp or a combination of the two with a degree of polymerization of 800 and a cellulose content ≥ 95% with impregnated lye, after impregnated and alkalized Alkali cellulose is made. After the alkali cellulose is pressed, crushed and aged, it is mixed with carbon disulfide for yellowing reaction to form cellulose xanthate.

[0026] The aging temperature is 40°C, the aging time is 1h, and the alkali cellulose cupro ammonia viscosity after aging is 70mPa.S.

[0027] The yellowing temperature is 15°C, the yellowing time is 50 minutes, and the addition of carbon disulfide to methyl cellulose is 35% during yellowing.

[0028] (2) Preparation of spinning solution: dissolving the cellulose xanthate prepared in step (1) in a di...

Embodiment 2

[0043] Embodiment 2: A kind of preparation method of high-strength regenerated cellulose fiber, it is characterized in that: described preparation method comprises the following steps:

[0044] (1) Preparation of cellulose sulfonate: fully mix cotton pulp, wood pulp or a combination of the two with a degree of polymerization of 1000 and a cellulose content ≥ 95% with impregnated lye, and prepare after impregnated and alkalized Alkali cellulose, after pressing, crushing and aging treatment, the alkali cellulose is mixed with carbon disulfide for yellowing reaction to form cellulose xanthate.

[0045] The aging temperature is 42°C, the aging time is 2.5 hours, and the alkali cellulose cupro ammonia viscosity after aging is 80mPa.S.

[0046] The yellowing temperature is 17°C, the yellowing time is 60 minutes, and the amount of carbon disulfide added to methyl cellulose is 40% during yellowing.

[0047] (2) Preparation of spinning solution: dissolving the cellulose xanthate prepa...

Embodiment 3

[0061] Embodiment 3: A kind of preparation method of high-strength regenerated cellulose fiber, it is characterized in that: described preparation method comprises the following steps:

[0062] (1) Preparation of cellulose sulfonate: fully mix cotton pulp, wood pulp or a combination of the two with a degree of polymerization of 1400 and a cellulose content ≥ 95% with impregnated lye, and prepare after impregnated and alkalized Alkali cellulose, after pressing, crushing and aging treatment, the alkali cellulose is mixed with carbon disulfide for yellowing reaction to form cellulose xanthate.

[0063] The aging temperature is 45°C, the aging time is 4 hours, and the alkali cellulose cupro ammonia viscosity after aging is 90mPa.S.

[0064] The yellowing temperature is 20°C, the yellowing time is 70 minutes, and the amount of carbon disulfide added to methyl cellulose is 45% during yellowing.

[0065] (2) Preparation of spinning solution: dissolving the cellulose xanthate prepare...

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Abstract

The invention relates to a preparing method of a high-strength regenerated cellulose fiber. The preparing method of the high-strength regenerated cellulose fiber is characterized by comprising the steps of preparing cellulose sulphonate, preparing a spinning solution, spinning, conducting drafting and postprocessing. The preparing method is simple in technology and convenient to carry out. Compared with a traditional regenerated cellulose fiber, the high-strength regenerated cellulose fiber obtained through the preparing method is high in dry and wet strength and has a good spinning property; in addition, physical and mechanical properties of the fiber are excellent, the dry breaking strength is 3.40 CN / dtex or above, the dry elongation at break is 13-16%, the wet breaking strength is 2.0 CN / dtex or above, and the wet breakage modulus is 0.45 CN / dtex or above. The high-strength regenerated cellulose fiber can be applied to textile industries of textile and garment materials, underwear and the like.

Description

technical field [0001] The invention relates to a preparation method of viscose fiber, in particular to a preparation method of high-strength regenerated cellulose fiber. Background technique [0002] Viscose fiber is a regenerated cellulose fiber produced from cotton or other natural fibers. Among the 12 main textile fibers, the moisture content of viscose fiber is most in line with the physiological requirements of human skin, and it has the characteristics of smooth and cool, breathable, antistatic, and brilliant dyeing. Ordinary viscose fiber has good hygroscopicity, is easy to dye, is not easy to generate static electricity, and has good spinnability. Short fibers can be spun purely or blended with other textile fibers. The fabric is soft, smooth, breathable, comfortable to wear, bright in color and good in color fastness after dyeing. It is suitable for making underwear, outerwear and various decorative items. [0003] The disadvantages of viscose fiber are lower dr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/08C08B9/00C08B1/08D01D5/06D01D5/12D01D10/06
CPCD01F2/08C08B1/08C08B9/00D01D5/06D01D5/12D01D10/06
Inventor 徐元斌邱纯利李娟郭伟才吴梅斌王鹏
Owner 山东银鹰化纤有限公司
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