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High-strength heterotype artifical fiber and its preparation method and spinneret

A man-made fiber and high-strength technology, applied in the direction of man-made filaments made of viscose, fiber treatment, wet spinning, etc., can solve the problem of low breaking strength, low breaking strength and dry elongation at break, and difficult to achieve fiber indicators and other problems, to achieve the effect of low production cost and simple process

Inactive Publication Date: 2006-02-08
CHTC HELON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most of the materials used in packaging materials, handicrafts, shoe materials and other fields use non-naturally degradable polyester fibers. With the increasing environmental protection standards, the above-mentioned materials are required to be made of naturally degradable man-made fibers with a fineness of 666-6666dtex Replacement, while the existing ordinary man-made fibers are mainly suitable for textile fields such as clothing and home textiles, and there are also conventional flat special-shaped fibers supplying the market, but their fineness is generally between 1.11-666dtex, the breaking strength is low, and the fiber index is difficult to meet the above-mentioned use requirements
The invention patent with the patent number 01108676.9 provides a kind of flat viscose yarn. The fineness of this fiber is 667-4500dtex. The elongation at break is 10-23%, and its breaking strength and dry elongation at break are low, which cannot meet the performance requirements of packaging materials, handicrafts, shoe materials, clothing and other product fields
Moreover, due to the high pressure of the spinning stock solution, it is easy to deform when using the existing artificial fiber spinneret to manufacture flat artificial fibers with a fineness of 666-6666tex, and it is difficult to continuously produce qualified products

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • High-strength heterotype artifical fiber and its preparation method and spinneret

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A high-strength special-shaped artificial fiber with a film-like flat fiber body 11, its fineness is 667dtex, the longitudinal dry breaking strength is 2.65CN / dtex, the longitudinal wet breaking strength is 1.36CN / dtex, and the longitudinal dry breaking elongation is 14 %. The fiber main body 1 has a width of 40mm and a thickness of 0.02mm. Five longitudinal arc-shaped reinforcing ribs 12 are made at equal distances on both sides of the fiber main body 11, and a longitudinal reinforcing rib 13 is respectively arranged on both edges of the fiber main body 11, and the radius of the reinforcing ribs is 0.02mm.

[0024] The preparation method of the above-mentioned high-strength special-shaped artificial fiber is to soak the pulp in a caustic soda solution added with auxiliary agent LV23, press, and age, so that the degree of polymerization of the alkali cellulose is controlled at 650, and the sulfonation reaction is carried out to make viscose. At the end of the reaction,...

Embodiment 2

[0027] A high-strength special-shaped artificial fiber with a fineness of 2220dtex, a longitudinal dry breaking strength of 2.00CN / dtex, a longitudinal wet breaking strength of 1.00CN / dtex, and a longitudinal dry elongation of 14%. The fiber main body 1 has a width of 5 mm and a thickness of 0.01 mm. Three longitudinal arc-shaped reinforcing ribs 12 are made at equal intervals on both sides of the fiber main body 11 .

[0028] The preparation method of the above-mentioned high-strength special-shaped artificial fiber is to soak the pulp in caustic soda solution added with auxiliary agent LV23, squeeze, and age, so that the degree of polymerization of alkali cellulose is controlled at 600, and the sulfonation reaction is carried out to make viscose. At the end of the reaction, the additive PEG is added, and after filtration, aging, and defoaming, it is sprayed out through a flat spinneret at a spinning speed of 50 m / min, and is first coagulated in the first coagulation bath, an...

Embodiment 3

[0031] A high-strength special-shaped artificial fiber with a fineness of 4440dtex, a longitudinal dry breaking strength of 2.35CN / dtex, a longitudinal wet breaking strength of 1.25CN / dtex, and a longitudinal dry elongation of 14%. The fiber main body 1 has a width of 40mm and a thickness of 0.03mm. Five longitudinal arc-shaped reinforcing ribs 12 are made at equal distances on both sides of the fiber main body 11, and a longitudinal reinforcing rib 13 is respectively arranged on both edges of the fiber main body 11, and the radius of the reinforcing ribs is 0.03mm.

[0032]The preparation method of the above-mentioned high-strength special-shaped man-made fibers is to soak the pulp in caustic soda solution added with auxiliary agent LV23, squeeze, and age, so that the degree of polymerization of alkali cellulose is controlled at 660, and the viscose is made by sulfonation reaction. Add the auxiliary agent AC1815 at the end of the reaction, and then use it for spinning after f...

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Abstract

The present invention is one kind of high strength specially shaped artificial fiber and its preparation process and spinning nozzle. The artificial fiber has fineness of 666-6660 dtex, dry breaking strength 2.00-3.00 CN / dtex, wet breaking strength 1.00-2.00 CN / dtex. During the preparation, the pulp is soaked in caustic soda solution with assistant LV23 added, the alkali cellulose has polymerization degree controlled in 600-700, the sulfonation reaction has assistant PEG and / or AC1815 added in the late stage, and the product is prepared through twice solidification, water washing, alkali washing, water washing for the second time, oiling, dewatering and stoving. The spinning nozzle has C-shaped inclined slot and forming slit in the bottom of the inclined slot. The flat artificial fiber has high longitudinal and transverse breaking strength, and may be used to replace polyester fiber incapable of degrading naturally in various use fields.

Description

technical field [0001] The invention relates to an artificial filament and a production method thereof, in particular to a flat artificial filament and a preparation method thereof. Background technique [0002] At present, most of the materials used in packaging materials, handicrafts, shoe materials and other fields use non-naturally degradable polyester fibers. With the increasing environmental protection standards, the above-mentioned materials are required to be made of naturally degradable man-made fibers with a fineness of 666-6666dtex Instead, the existing ordinary man-made fibers are mainly suitable for textile fields such as clothing and home textiles. There are also conventional flat special-shaped fibers supplying the market, but their fineness is generally between 1.11-666dtex, the breaking strength is low, and the fiber index is difficult to meet the above-mentioned use requirements. The invention patent with the patent number 01108676.9 provides a kind of flat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/253D01D5/06D01F2/06
Inventor 田素峰王乐军马君志
Owner CHTC HELON