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12ends spinning polyamide-6 fine denier low shrink industrial yarn production technology

A production process and low-shrinkage technology, which is applied to complete sets of equipment for the production of artificial threads, stretch spinning, filament/thread forming, etc. The effect of low boiling water shrinkage

Active Publication Date: 2017-08-15
HAIAN HUARONG CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current fine denier nylon 6 industrial yarn products generally only focus on strength and elongation at break, ignoring the shrinkage in boiling water

Method used

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  • 12ends spinning polyamide-6 fine denier low shrink industrial yarn production technology
  • 12ends spinning polyamide-6 fine denier low shrink industrial yarn production technology
  • 12ends spinning polyamide-6 fine denier low shrink industrial yarn production technology

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Experimental program
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Effect test

Embodiment 1

[0019] 1.1 Raw material and oil agent

[0020] The raw material is nylon 6 chips produced by Jiangsu Haiyang Chemical Fiber Co., Ltd., with a viscosity of 2.8, a monomer mass fraction of ≤1.5%, and a moisture content of ≤0.04%;

[0021] The oil is Japanese bamboo oil.

[0022] 1.2 Main equipment

[0023] The spinning equipment is the nylon high-speed spinning equipment of Dalian Synthetic Fiber Research Institute, 2 spinning positions / screw, 12 heads / spinning position, component position cup type, 4 pairs of hot rollers, fully automatic winding head.

[0024] Tensile testing machine, constant temperature water bath.

[0025] 1.3 Process flow

[0026] 1) The nylon 6 dry chip raw material is introduced into the screw extruder through the silo and melted, so that the raw material is molten, becomes a spinning melt, and enters the melt pipeline;

[0027] (2) Spinning: the above-mentioned spinning melt is input into the spinning box, and the speed of the metering pump is contro...

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Abstract

The invention provides a 12ends spinning polyamide-6 fine denier low shrink industrial yarn production technology comprising the following steps: 1, importing polyamide-6 dry slice raw material into a screw extruder through a bunker, fusing the raw material into a fusion type to form a spinning melt, and allowing the melt to enter a melt pipeline; 2, spinning: inputting the spinning melt into a spinning box, controlling the metering pump revolution speed, metering the material and pressing into an assembly, thus forming a filament bundle through a spinneret; 3, cooling: allowing the filament bundle to pass a heat retarder, and using side blowing and a channel to cool off the filament bundle; 4, oiling: allowing the filament bundle to pass an oil tanker, and controlling the oil tanker rotating speed so as to control the oiling rate; 5, hot roller drawing: using hot rollers of different temperature and speed to draw the filament bundle, thus obtaining intensity and fracture elongation indexes; 6, moulding: interlacing the cooled filament bundles, adjusting winding tension, and realizing wining formation. The production technology uses a high moulding temperature to obtain a low boiling water shrinkage.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to high-molecular-weight nylon 6 chips and spinning technology thereof. Background technique [0002] At present, the output of nylon 6 industrial yarn in my country accounts for 1 / 4 of the world's total output, most of which are coarse denier nylon products. After years of development, the technology has become mature and stable, and the market competition is fierce. However, fine-denier nylon industrial yarn is widely used because of its superior performance, and the product has high added value and has a very broad market prospect. The current fine denier nylon 6 industrial yarn products generally only focus on strength and elongation at break, ignoring the shrinkage in boiling water. Because the boiling water shrinkage index is an important index in the garment industry. Due to its own characteristics, the boiling water shrinkage of polyester is much smaller than tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D13/00D01D1/06D01D5/092D01D5/096D01D5/16D01D10/02
Inventor 陈礼荣丁楠
Owner HAIAN HUARONG CHEM FIBER
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