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Production method of filament for capron 6 one-step full stretching superfine denier socks

A production method and full-drawing technology, applied in the melting of filament raw materials, filament/thread forming, melt spinning, etc., can solve the problems of unsuitability, low fiber uniformity, linear density unevenness, and breaking strength. Problems such as high elongation unevenness, to achieve the effect of tear resistance, obvious skinny feeling and stable size

Inactive Publication Date: 2010-01-06
JIANGSU WENFENG CHEM FIBER GROUP
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Problems solved by technology

However, due to technological factors, the products produced still have the disadvantages of high linear density unevenness, breaking strength and elongation unevenness, and low fiber uniformity, which cannot be suitable for high-grade covered yarns, woolen sweaters, etc. and silk for ultra-thin socks

Method used

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  • Production method of filament for capron 6 one-step full stretching superfine denier socks

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Embodiment Construction

[0017] see figure 1 . The process flow of the present invention is: Nylon 6 dry slice 1→slice bin 2→screw extruder 3→melt spinning 4→side blowing cooling 5→wet oiling 6→heat traction 7→network shaping 8→winding Finished product9.

[0018] A kind of production method of nylon 6 (one-step method) full-drawn superfine denier socks filament of the present invention, comprises the following steps: (1) melting: the nylon 6 semi-dull slice raw material is imported into "screw rod" through "dry slice feed bin" (2) Spinning: Input the above-mentioned spinning melt into the "spinning box", after metering, press it into the assembly, extrude Form "spun fibers"; (3) cooling: cool the above-mentioned "spun fibers" through side blowing, oil nozzles, and tunnels; (4) forming: pre-interlace the above-mentioned cooled tow, heat them with R1 rolls and R2 rolls Stretching (heat setting), entanglement, traction treatment, winding forming, forming a finished silk cake. The production method is...

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Abstract

The invention discloses a production method of filament for capron 6 one-step full stretching superfine denier socks, which is characterized by comprising the following steps: firstly, melting step: guiding capron 6 semi-dulling chip raw material into a screw extruder through a dry chip bin to be melted so that the raw material is in a melting state to form a spinning molten mass; secondly, spinning step: inputting the spinning molten mass into a spinning box body, spanning on a fine denier spinning winding machine through a spinneret plate and pressing into a component after measurement, and extruding and forming asspun fiber; thirdly, cooling step: cooling the asspun fiber by a lateral blowing air duct device through lateral blowing, an oil nozzle and a corridor; and fourthly, forming step: pretangling, R1 roller and a R2 roller hot stretching and hot shaping, tangling and drawing a cooled filament bundle, winding and forming and finally forming a finished spinning cake. The filament produced by adopting the method has better fiber density CV value, breaking strength, breaking strength CV value and breaking elongation CV value than that of high-quality filament.

Description

technical field [0001] The invention relates to the technology in the field of producing filaments for hosiery, in particular to a production method of nylon 6 filaments for ultrafine denier socks by one-step full-drawing. Background technique [0002] There are currently two domestic nylon 6 filament production technologies, one is the UDY-DT conventional two-step method. In the first step, the winding and undrawn UDY silk cake is produced at a spinning speed of 800-1000m / min, and in the second step, the UDY silk cake is drawn about 3.6 times to become a 2kg fully drawn filament; The second is the FDY one-step method. FDY one-step high-speed spinning technology has short process flow, high silk speed, high output, uniform product quality, high breaking strength, high equipment efficiency, less raw material consumption, and low cost. It is the replacement technology of UDY-DT conventional two-step method. However, due to technological factors, the products produced still h...

Claims

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Application Information

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IPC IPC(8): D01D5/10D01D5/092D01D5/096D01D1/04D01D1/09D02J1/08D02J1/22
Inventor 陈文凤张晓东龚剑兵李晓勇
Owner JIANGSU WENFENG CHEM FIBER GROUP
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