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Manufacturing process of fine denier nylon 6 fully-drawn fibers

A production process and full-drawing technology, applied in fiber processing, complete sets of equipment for the production of artificial threads, stretch spinning, etc., can solve problems such as not meeting user requirements, and achieve high automation, mature technology, and high-quality products. good quality effect

Active Publication Date: 2010-12-22
BEIJING SANLIAN HOPE TEXTILE & CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the domestic nylon 6 high orientation fiber technology is concentrated in 44-110 decitex, and the products with monofilament above 1.1 decitex cannot meet the requirements of users

Method used

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  • Manufacturing process of fine denier nylon 6 fully-drawn fibers
  • Manufacturing process of fine denier nylon 6 fully-drawn fibers
  • Manufacturing process of fine denier nylon 6 fully-drawn fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The fine denier nylon 6 fully drawn fiber spinning process is further explained in conjunction with the process flow chart.

[0025] Spinning equipment and supporting devices, including screw extruder 1, measuring head 2, melt distribution pipe 3, spinning box 4, spinning metering pump 5, spinning assembly 6, side blowing device 7, oiling device 8 , winder 9 and biphenyl steam generator 10.

[0026] Technological process: 1000kg of dry nylon 6 slices (calculated as 1000kg product) enter the screw extruder 1, and after being extruded and melted, it becomes a spinnable nylon 6 melt. In the screw extruder 1, it is divided into five temperatures In the control area, the heating temperature of the first zone is 245°C, the heating temperature of the second zone is 250°C, the heating temperature of the third zone is 255°C, the heating temperature of the fourth zone is 258°C, the heating temperature of the fifth zone is 260°C, and the nylon 6 melt from the screw extruder 1 The...

Embodiment 2

[0029] 1) 990kg of dry nylon 6 slices (calculated as 1000kg product) are heated, extruded, and melted into a melt in a screw extruder with a rotation speed of 80 rpm and a heating temperature of 265°C. The screw extruder is divided into Five temperature control zones, the heating temperature of the first zone is 250°C, the heating temperature of the second zone is 255°C, the heating temperature of the third zone is 260°C, the heating temperature of the fourth zone is 260°C, the heating temperature of the fifth zone is 265°C, the nylon 6 produced by the screw extruder The melt temperature is 265°C,

[0030] 2) Nylon 6 melt is insulated by a gas-phase heat medium in the melt pipeline, delivered to the spinning box by a pipeline of equal length outside the box and metered by a spinning metering pump. The supply of the metering pump is 10 g / min, and its rotation Count 25 revolutions per minute, and then distribute the nylon 6 melt evenly into the spinning assembly through the pipe...

Embodiment 3

[0035] 1) 1010kg of dry nylon 6 slices (calculated as 1000kg product) are heated, extruded, and melted into a melt in a screw extruder with a rotation speed of 30 rpm and a heating temperature of 245°C. The screw extruder is divided into Five temperature control zones, the heating temperature of the first zone is 240°C, the heating temperature of the second zone is 245°C, the heating temperature of the third zone is 250°C, the heating temperature of the fourth zone is 255°C, the heating temperature of the fifth zone is 257°C, the nylon 6 produced by the screw extruder The melt temperature is 257°C,

[0036] 2) Nylon 6 melt is insulated by a gas-phase heat medium in the melt pipeline, delivered to the spinning box by a pipeline of equal length outside the box, and is metered by a spinning metering pump. The supply of the metering pump is 7 g / min. Count 8 revolutions per minute, and then distribute the nylon 6 melt evenly into the spinning assembly through the pipeline in the eq...

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PUM

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Abstract

The invention relates to a manufacturing process of fine denier nylon 6 fully-drawn fibers, which is characterized by comprising the following steps: 1) slicing dried nylon 6, heating and extruding to fuse into fusant; 2) preserving the temperature of the fusant, and evenly distributing the fusant into a spinning assembly; 3) placing the fusant in the spinning assembly into a sand cup, and filling metal sand; 4) ejecting the fusant from a spinneret plate at the bottom of the spinning assembly to form fiber yarns; and 5) cooling the shaped yarn bundle, oiling in cluster, passing through a spinning channel and then carrying out wound pre-interlacing and interlacing, drafting at high speed and high multiplying factor, and winding into spinning cakes on a winding machine to manufacture fiber yarn bundles.

Description

technical field [0001] The invention belongs to the preparation and production process of nylon 6 fiber, in particular to a spinning production process of fine denier semi-dull nylon 6 high orientation fiber. Background technique [0002] Nylon fiber is the second largest variety of synthetic fiber in the world, and the third largest variety of synthetic fiber in my country. With the improvement of people's living standards, people's demand for textile raw materials is becoming more and more differentiated, high-end, and personalized. At present, domestic nylon 6 highly oriented fiber technology is concentrated in 44-110 decitex, and products with monofilaments above 1.1 decitex cannot meet the requirements of users. The invention provides a process for producing fine denier nylon 6 full-drawn fibers with a denier of less than 22 decitex and a single filament denier of less than 1.1 decitex. Contents of the invention [0003] The object of the present invention is to prov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/08D01D5/088D01D5/096D01D1/06D01D5/12D01D13/00
Inventor 刘迪李德和于佩霖
Owner BEIJING SANLIAN HOPE TEXTILE & CHEM TECH
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