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Nylon BCF (bulked continuous filament) superfine fiber and preparation method thereof

A superfine fiber and nylon technology, applied in the field of spinning, can solve the problems of uneven cooling of superfine fibers, easy occurrence of filaments, broken ends, affecting product quality, etc. low effect

Inactive Publication Date: 2019-12-31
SHEN MA INDUSTRY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem addressed by the present invention is: when preparing superfine fiber filaments in the prior art, the obtained superfine fiber filaments are unevenly cooled and oiled, which seriously affects the product quality, and is very prone to hair and broken ends. , low strength, large elongation, and large curl (generally, the curl is more than 5.5%)

Method used

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  • Nylon BCF (bulked continuous filament) superfine fiber and preparation method thereof
  • Nylon BCF (bulked continuous filament) superfine fiber and preparation method thereof
  • Nylon BCF (bulked continuous filament) superfine fiber and preparation method thereof

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preparation example Construction

[0030] The invention provides a kind of preparation method of nylon BCF superfine fiber, and this method comprises the following steps:

[0031] (1) slices are melted and extruded by a screw machine;

[0032] (2) Spinning:

[0033] The molten liquid after melt extrusion enters the spinning assembly through the inlet of the spinning assembly cover, such as figure 2 , image 3 As shown, it enters the component through the entrance of the component cover, passes through the first filter screen, the sea sand in the sand box, the second filter screen, and the third filter screen in sequence, and then sprays out through the spinneret with special-shaped holes.

[0034] Wherein, the special-shaped hole spinneret is a spinnerette with 105 holes of special-shaped trilobal holes (there are 105 trilobal micropores on the spinneret), and the aspect ratio of the trilobal holes on the spinneret is 3.8. Among them, the filter sea sand mesh of the component is 25 mesh.

[0035] The comp...

Embodiment 1

[0057] A preparation method of nylon BCF superfine fiber, the method may further comprise the steps:

[0058] (1) slices are melted and extruded by a screw machine;

[0059] (2) Spinning:

[0060] The molten liquid after melt extrusion enters the spinning assembly through the inlet of the spinning assembly cover, such as figure 2 , image 3 As shown, it enters the component through the entrance of the component cover, passes through the first filter screen, the sea sand in the sand box, the second filter screen, and the third filter screen in sequence, and then sprays out through the spinneret with special-shaped holes.

[0061] Wherein, the special-shaped hole spinneret is a special-shaped 105-hole spinneret (the special-shaped hole is a trilobal hole), and the aspect ratio of the trilobal hole on the spinneret is 3.8. Among them, the filter sea sand mesh of the component is 25 mesh.

[0062] The component firstly filters the molten liquid through sea sand, which can fil...

Embodiment 2

[0081] A preparation method of nylon BCF superfine fiber, the method may further comprise the steps:

[0082] (1) slices are melted and extruded by a screw machine;

[0083] (2) Spinning:

[0084] The molten liquid after melt extrusion enters the spinning assembly through the inlet of the spinning assembly cover, such as figure 2 , image 3 As shown, it enters the component through the entrance of the component cover, passes through the first filter screen, the sea sand in the sand box, the second filter screen, and the third filter screen in sequence, and then sprays out through the spinneret with special-shaped holes.

[0085] Wherein, the special-shaped hole spinneret is a special-shaped 105-hole spinneret (the special-shaped hole is a trilobal hole), and the aspect ratio of the trilobal hole on the spinneret is 3.8. Among them, the filter sea sand mesh of the component is 25 mesh.

[0086] The component firstly filters the molten liquid through sea sand, which can fil...

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Abstract

The invention discloses a nylon BCF (bulked continuous filament) superfine fiber and a production method thereof; the method comprises the steps of firstly taking slices, carrying out melt extrusion,carrying out spinning through a special-shaped 105-hole trilobal spinneret plate, cooling and setting, oiling, drafting, deforming, making lapping points and winding to obtain the nylon BCF superfinefiber. According to the invention, the special-shaped trilobal spinneret plate is adopted, a high polymer melt or a solution in a viscous flow state sticks to the spinneret plate and is converted intoa thin flow with a specific cross section through micropores, and the thin flow is solidified through a solidification medium such as air or a solidification bath to form a filament. By controlling the whole post-treatment process, the occurrence of fiber filaments is avoided, and the generation of end breakage is greatly reduced. The prepared fiber is fine and smooth to touch, has the special properties of high strength, small elongation, small curling degree and the like, and allows spooled yarns to be easy to spin and process. The obtained superfine fiber is good in quality, completely meets market requirements, and has good economic and social benefits for enterprises.

Description

technical field [0001] The invention belongs to the technical field of spinning, and in particular relates to a nylon BCF superfine fiber and a production method thereof. Background technique [0002] Bulk Continuous Filament (BCF) is a textured filament that is processed by a hot air texture device through stretched tow. BCF is widely used in many fields such as weaving carpets, car cushions and decorative fabrics due to its three-dimensional curling, good hand feeling and high bulkiness. Therefore, the preparation of the expanded filament has been a technology that has been continuously and deeply researched in the field of spinning. [0003] At present, the existing methods for preparing expanded filaments generally include steps such as spinning-drawing-deformation-dotted network-winding, etc. Expanded filaments with wide applications have been prepared through this method. [0004] Due to the extremely fineness of ultra-fine fibers, the stiffness of the silk is greatl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/253D01D5/088D01D5/096D01D5/16D02G1/16
CPCD01D5/088D01D5/096D01D5/16D01D5/253D02G1/16
Inventor 杨东辉王安乐刘淼王劼杨东华任蕾王晓峰石华张阳阳宋宏伟毕杰薛山谢巧丽
Owner SHEN MA INDUSTRY CO LTD
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