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Production process of polyamide 6 special-shaped air-textured yarns with high strength and low boiling shrinkage

A production process and high-strength technology, applied in the manufacture of hollow filaments, fiber chemical characteristics, heat treatment of artificial filaments, etc., can solve problems such as low strength, poor boiling shrinkage performance, and unsatisfactory performance of space-changing yarns, and achieve high intensity effect

Active Publication Date: 2013-01-30
GUANGDONG XINHUI MEIDA NYLON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the performance of the air variable yarn produced by the existing air variable yarn production process is not ideal, especially the low strength and poor boiling shrinkage performance

Method used

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  • Production process of polyamide 6 special-shaped air-textured yarns with high strength and low boiling shrinkage
  • Production process of polyamide 6 special-shaped air-textured yarns with high strength and low boiling shrinkage
  • Production process of polyamide 6 special-shaped air-textured yarns with high strength and low boiling shrinkage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A production process of high-strength and low-boiling shrinkage nylon 6 special-shaped air-variable yarn (see figure 1 and figure 2 ), including the following steps:

[0022] 1) Add nylon 6 slices (relative viscosity 3.0, moisture content lower than 0.05ppm) into the storage tank 2 through the slice hopper 1, and the material in the storage tank 2 is fed into the extruder 3, and the temperature of each section of the extruder 3 is respectively 260°C, 270°C, 280°C, 290°C, 300°C;

[0023] 2) The extruder 3 transports the molten material to the metering pump 51 in the spinning box 5 through the melt distribution pipe 4, and the metering pump 51 accurately injects the material into the spinning assembly 52 in the spinning box 5, and the material is sprayed The wire plate 521 forms a thin stream of melt; wherein, the shape of the nozzle holes in the spinneret is ten-lobed;

[0024] 3) The melt stream passes through the thermostat 6 (the temperature is controlled at 190~2...

Embodiment 2

[0027] A production process of high-strength and low-boiling shrinkage nylon 6 special-shaped air-variable yarn (see figure 1 and figure 2 ), including the following steps:

[0028] 1) Add nylon 6 slices (relative viscosity 3.2, moisture content lower than 0.05ppm) into the storage tank 2 through the slice hopper 1, and the material in the storage tank 2 is fed into the extruder 3, and the temperature of each section of the extruder 3 is respectively 260°C, 270°C, 280°C, 290°C, 300°C;

[0029] 2) The extruder 3 transports the molten material to the metering pump 51 in the spinning box 5 through the melt distribution pipe 4, and the metering pump 51 accurately injects the material into the spinning assembly 52 in the spinning box 5, and the material is sprayed The wire plate 521 forms a thin stream of melt; wherein, the shape of the nozzle holes in the spinneret is five-lobed;

[0030] 3) The melt stream passes through the thermostat 6 (the temperature is controlled at 190~...

Embodiment 3

[0033] A production process of high-strength and low-boiling shrinkage nylon 6 special-shaped air-variable yarn (see figure 1 and figure 2 ), including the following steps:

[0034] 1) Add nylon 6 slices (relative viscosity 3.6, moisture content lower than 0.05ppm) into the storage tank 2 through the slice hopper 1, and the material in the storage tank 2 is fed into the extruder 3, and the temperature of each section of the extruder 3 is respectively 260°C, 270°C, 280°C, 290°C, 300°C;

[0035] 2) The extruder 3 transports the molten material to the metering pump 51 in the spinning box 5 through the melt distribution pipe 4, and the metering pump 51 accurately injects the material into the spinning assembly 52 in the spinning box 5, and the material is sprayed The wire plate 521 forms a thin stream of melt; wherein, the shape of the orifice in the spinneret is a six-lobed shape;

[0036] 3) The melt stream passes through the thermostat 6 (the temperature is controlled at 19...

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Abstract

The invention discloses a production process of high-strength and low-boiling shrinkage nylon 6 special-shaped space-changing yarn, which comprises the following steps: 1) feeding nylon 6 slices into an extruder through a slicing hopper; The molten material is transported to the metering pump in the spinning box, and the metering pump accurately injects the material into the spinning assembly in the spinning box, and the material passes through the spinneret to form a thin melt stream; 3) The melt stream passes through the temperature controller , and gradually solidified into filaments under the condition of side blowing cooling, oiled, stretched by GR1 hot roller, GR2 hot roller, and then passed through the winding device to form drafted filaments; 4) The drafted filaments are fed through the wire breaker It enters the first roller, passes through the second roller, passes through the air nozzle, then passes through the stabilizing hot box, the setting hot box for shaping, and finally passes through the wire detector, is oiled by the oil nozzle, and finally winds into an air textured yarn through the winding device. The air variable yarn produced by the process of the invention has the characteristics of high strength and low boiling water shrinkage.

Description

technical field [0001] The invention relates to a production process of high-strength and low-boiling shrinkage nylon 6 special-shaped space-changing yarn. Background technique [0002] ATY was invented by DuPont in the 1950s. Its principle is: the filament enters the nozzle at a lower overfeed rate, and the airflow blows along the direction in which the filament is running, so that the filament is dispersed and ejected, so that Excess lengths of filaments can be made to form kinks or loops, which are organically combined with the main body of the yarn, resulting in a fluffy tow. [0003] However, the performance of the air variable yarn produced by the existing air variable yarn production process is not ideal, especially the low strength and poor boiling shrinkage performance. Contents of the invention [0004] The purpose of the present invention is to provide a production technology of high-strength and low-boiling shrinkage nylon 6 special-shaped air-variable yarn. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D02G1/16D01D5/24D01D5/253D01D5/08D01D10/02
Inventor 梁伟东毛新华宋明陈欣刘将培李细林汤友好黄健华
Owner GUANGDONG XINHUI MEIDA NYLON