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Method for preparing polyphenylene sulfide spun-bonded needle punched non-woven fabrics

A technology of needle-punched non-woven fabrics and polyphenylene sulfide, which is applied in the preparation process of needle-punched non-woven fabrics and the field of preparation of polyphenylene sulfide spun-bonded needle-punched non-woven fabrics, which can solve the problem of poor air permeability and high needle-punched density and other problems, to achieve the effect of high production efficiency, consistent vertical and horizontal strength, and short process flow

Active Publication Date: 2012-04-25
FOSHAN S L P SPECIAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high needle punching density of staple fiber needle punched non-woven fabrics, the gaps between fibers are small, so its air permeability is poor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Method for preparing polyphenylene sulfide spun-bonded needle punched non-woven fabrics
  • Method for preparing polyphenylene sulfide spun-bonded needle punched non-woven fabrics
  • Method for preparing polyphenylene sulfide spun-bonded needle punched non-woven fabrics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] 300kg polyphenylene sulfide slices (melt index: 105-165g / 10min) are transported to the pre-crystallizer by air flow for pre-crystallization, the temperature set in the pre-crystallizer is 110-160°C, and the pre-crystallized slices are dried in a drying tower After treatment, it becomes a dry chip with a moisture content of 20-60ppm, and then it is extruded, melted, and metered. The speed of the metering pump is 15rpm, and it is extruded from the small hole of the spinneret under the action of pressure and gravity; Under the action of side blowing, the slow-cooled melt stream becomes a fiber filament with certain mechanical properties, and the fiber fineness is 3D. After passing through the drafting process of the air drafter, the fiber has excellent mechanical properties; the fiber bundle Under the action of the spinning device, a uniform fiber web is laid, and under the conveyance of the web forming machine, it enters the acupuncture machine for processing; the polyphen...

Embodiment 2

[0053] 500kg of polyphenylene sulfide slices (melt index: 105-165g / 10min) are transported to the pre-crystallizer by air flow for pre-crystallization. The temperature set in the pre-crystallizer is 110-160°C, and the pre-crystallized slices are dried in a drying tower After treatment, it becomes a dry chip with a moisture content of 20-60ppm, and then extrudes, melts, and measures. The speed of the metering pump is 19rpm, and it is extruded from the small hole of the spinneret under the action of pressure and gravity; Under the action of side blowing, the slow-cooled melt stream becomes a fiber filament with certain mechanical properties, the fiber fineness is 6D, and then through the drafting process of the air drafter, the fiber has excellent mechanical properties; the fiber bundle Under the action of the spinning device, a uniform fiber web is laid, and under the conveyance of the web forming machine, it enters the acupuncture machine for processing; the polyphenylene sulfid...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention relates to a method for preparing polyphenylene sulfide spun-bonded needle punched non-woven fabrics, comprising the steps: slicing of polyphenylene sulfide-pneumatic conveying-precrystallization-drying- melt spinning-air drawing-filament web-forming-needle-punching reinforcement-after finishing-winding, resulting in the polyphenylene sulfide spun-bonded needle punched non-woven fabrics. The invention further discloses a device for the implementation of the method for preparing polyphenylene sulfide spun-bonded needle punched non-woven fabrics. Compared with short fiber needle-punched method for the production of polyphenylene sulfide needle punched non-woven fabrics, the method for preparing polyphenylene sulfide needle punched non-woven fabrics by using spun-bonded filament needle punched method has the advantages of short technological procedures, small number of apparatuses, less required labor force, high production efficiency and large yield.

Description

technical field [0001] The invention relates to a preparation process of needle-punched non-woven fabric, which belongs to the technical field of non-woven fabric production, in particular to a preparation method and a device for preparing polyphenylene sulfide spun-bonded needle-punched non-woven fabric. Background technique [0002] In the production of needle-punched non-woven fabrics, there are two types of production technologies: dry method (short fiber) and spunbond (filament). There are at least three processes in the dry-laid non-woven fabric production system, namely: (a) preparation of fibers; (b) web forming and laying; (c) reinforcement or bonding of fiber webs. Among them, the staple fiber needle-punched technology has an earlier history and is the most widely used, and is currently the only technical route for the production of PPS needle-punched non-woven fabrics. The process flow of PPS staple-punched non-woven fabrics is as follows Shown: The technological...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H3/009D04H3/105D01D5/088D01D5/098D01D13/00
Inventor 李杰曾世军叶锡平雷晓光吕大鹏陈让军周思远
Owner FOSHAN S L P SPECIAL MATERIALS
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