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Process for producing 20-denier and 1-pore semi-dull fully-drawn fibers of nylon 6

A production process and semi-extinction technology, which is used in fiber processing, complete sets of equipment for the production of artificial threads, and stretching and spinning methods. Effect

Active Publication Date: 2011-05-04
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 products cannot meet the requirements of users

Method used

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  • Process for producing 20-denier and 1-pore semi-dull fully-drawn fibers of nylon 6
  • Process for producing 20-denier and 1-pore semi-dull fully-drawn fibers of nylon 6
  • Process for producing 20-denier and 1-pore semi-dull fully-drawn fibers of nylon 6

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1, production technique of the present invention

[0032] 20 denier nylon 6 semi-dull fully drawn fiber spinning process, combined with process flow chart for further explanation.

[0033] Spinning equipment and supporting devices, spinning equipment and supporting devices, including: 1. slice conveying, 2. screw extruder, 3. measuring head, 4. melt distribution pipe, 5. spinning box, 6. spinning Silk metering pump, 7. Spinning assembly, 8. Side blowing device, 9. Oiling device, 10. Winding machine and 11. Biphenyl steam generator (see attached drawing for details).

[0034] Process flow: Nylon 6 semi-dull slices enter the screw extruder 2, and are extruded and melted to become a spinnable nylon 6 melt. In the screw extruder 2, there are three temperature control zones, and the heating temperature in the first zone is 250-252°C, the heating temperature in the second zone is 253-258°C, the heating temperature in the third zone is 256-258°C, the nylon 6 melt f...

Embodiment 2

[0036] Embodiment 2, production technique of the present invention

[0037] 1) Nylon 6 slices are heated, extruded, and melted into a melt in a screw extruder with a rotation speed of 40 rpm and a heating temperature of 250-260°C. The screw extruder is divided into three temperature control zones, one The heating temperature of the zone is 250-252°C, the heating temperature of the second zone is 253-258°C, the heating temperature of the third zone is 256-258°C, the temperature of the nylon 6 melt from the screw extruder is 250-255°C, 2) nylon 6 melt In the melt pipeline, it is insulated by a gas-phase heat medium, and is delivered to the spinning box by a pipeline of equal length outside the box, and is metered by a spinning metering pump. Then the nylon 6 melt is evenly distributed to the spinning assembly through the pipeline in the equal-length box,

[0038] 3) Nylon 6 molten material in the spinning assembly enters the sand cup, and 60 grams of metal sand is loaded,

[0...

Embodiment 3

[0041] Embodiment 3, production technology of the present invention

[0042]Nylon 6 semi-dull slices are heated in the screw extruder 2 with a rotation speed of 40 rpm and a heating temperature of 250-260°C, extruded and melted to become a spinnable nylon 6 melt, and processed in the screw extruder In 2, it is divided into three temperature control zones, the heating temperature of the first zone is 250-252°C, the heating temperature of the second zone is 253-258°C, and the heating temperature of the third zone is 256-258°C. The nylon 6 melt from the screw extruder 2 is passed through Measuring head 3, the temperature of the measuring head is 253°C, the spinning temperature is guaranteed to be 253°C, and then the melt distribution pipe 4 is sent to the spinning metering pump 6 in the spinning box 5 for accurate metering, and the nylon 6 melt is melted by the equal length pipe The melt is evenly distributed into the spinning assembly 7, the spinning metering pump 6 has a supply...

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Abstract

The invention relates to a process for producing 20-denier and 1-pore fully-drawn fibers of nylon 6. The process comprises the following steps: 1) heating, extruding and fusing semi-dull chips of nylon 6 into fusants; 2) carrying out heat insulation on the fusants of nylon 6, conveying the fusants to a spinning manifold by equilong pipes outside the manifold, metering the fusants by a spinning metering pump and then uniformly distributing the fusants of nylon 6 to a spinning pack by equilong pipes inside the manifold; 3) feeding the fusants of nylon 6 in the spinning pack into a sand cup and loading metal sands; 4) jetting the fusants under high pressure from a spinneret at the bottom of the spinning pack to form fibers and carrying out cooling molding on the fibers by the quench air with constant temperature and humidity; and 5) applying oil to the bundles of the tows obtained after cooling molding, and after the tows pass through a spinning channel, a wound drawing roll and then a wound tension roll, winding the tows into spinning cakes on a winding machine, thus producing 20-denier semi-dull fully-drawn fiber tows of nylon 6.

Description

technical field [0001] The invention belongs to the field of chemical industry and relates to a preparation and production process of nylon 6 fiber, in particular to a spinning production process of nylon 6 semi-dull fully drawn 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 products cannot meet the requirements of users. [0003] In order to effectively solve the problems existing in the prior art, the inventor invented a semi-dull full-drawing fiber production process for producing nylon 6 with a fineness of 20D after a long period of practice. Contents of the invention [0004] The purpose of the present invention is to provide a 20-denier 1-hole nylon 6...

Claims

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Application Information

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IPC IPC(8): D01D5/08D01D5/088D01D5/096D01D5/16D01D1/06D01D13/00D01F6/60
Inventor 于佩霖林世斌
Owner BEIJING SANLIAN HOPE TEXTILE & CHEM TECH
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