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Production process of ultrafine-denier high-strength viscose fibers

A viscose fiber and production process technology, which is applied in the field of superfine denier high-strength viscose fiber production process, can solve problems such as reducing denier and achieve the effect of enhancing fiber strength

Active Publication Date: 2013-05-15
SATERI JIUJIANG FIBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a production process of superfine denier high-strength viscose fiber, which solves the problems of reducing fineness and increasing strength of superfine denier high-strength viscose fiber

Method used

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Embodiment Construction

[0016] include:

[0017] 1) Soaking, pressing and crushing, the crushing degree of the alkali cellulose is ≤1.0%;

[0018] 2) Filtration, the number of spungel particles mentioned above, the particle size is 20--40μm, less than 30 per gram of spungel;

[0019] 3) Spinning, the said methyl fiber is 8.9±0.1%, the alkali content is 5.4±0.1%, the viscosity is 50±3 seconds falling ball method, the maturity is 14±2ml10%NH4Cl, and the auxiliary agent visco-388 is 1-2 kg / ton Silk, additive visco-32 0.2-0.5 kg / ton silk;

[0020] 4) Forming, the forming process includes one bath, sulfuric acid concentration 106-110g / l, zinc sulfate 12.0-14.0g / l, specific gravity 1.310-1.325, acid temperature 46-50°C; two baths, The concentration of sulfuric acid is 40--50g / l, the temperature is 70--85°C, the spinneret in the molding process is an annular combined tantalum spinneret, and the spinneret aperture is 0.05mm;

[0021] 5) Drafting, the total drafting rate of said drafting is 120-140%, and ...

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Abstract

The invention discloses a production process of ultrafine-denier high-strength viscose fibers. The production process comprises the steps: immersing, squeezing and crushing, wherein the crushing degree of alkali cellulose is not more than 1.0%; filtering, wherein spinning glue has the particle count of smaller than 30pieces / gram and has the particle diameter of 20-40mu m; spinning and forming, wherein a forming process comprises the steps of primary bath and secondary bath, and a spinneret is an annular combined type tantalum spinneret and has the pore diameter of 0.05mm; drafting, wherein the total degree of draft is 120-140% and the degree of primary draft is 38-42%; and refining, wherein in a refining process, the temperature of a desulfuration bath is 80-85DEG C, the NaOH concentration of the desulfuration bath is 1-3g / L, and the PH value of acetic acid in a collection tank is 4-6. According to the invention, the effects on reducing denier and improving strength for the ultrafine-denier high-strength viscose fibers are realized; and the ultrafine-denier high-strength viscose fibers have the denier of 1.11dtex and the strength of more than 2.9DN / DTEX.

Description

technical field [0001] The invention relates to a production process of superfine denier high-strength viscose fiber. technical background [0002] With the continuous improvement of people's living standards, the requirements for textiles are getting higher and higher, and high-tech, green, ecological and environmentally friendly high-end textile products are increasingly favored by consumers. [0003] The domestic spinning technology and equipment are continuously upgraded and updated, and the previous ring spinning equipment has been changed to advanced high-speed spinning equipment such as compact spinning, siro spinning, and vortex spinning. Higher requirements; the development of multi-functional, high value-added new textile materials is the need to continuously increase the market share of products at home and abroad, to improve the level of product competition, and to continuously improve the company's benefits. The development of superfine denier high-strength vis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F2/08D01D5/06
Inventor 屠建中蓝庆明吴金友高良旭张南平陈明生邬雪云
Owner SATERI JIUJIANG FIBER CO LTD
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