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High-efficiency low-resistance non-woven filter material and production method thereof

A filter material, non-woven technology, applied in the field of high efficiency and low resistance, can solve the problems of large demand for plants, general filtration performance, low breaking strength, etc., to increase the specific surface area, protect the environment, and reduce carbon emissions.

Active Publication Date: 2013-04-03
SHANGHAI BG INDAL FABRIC +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process produces a lot of wastewater, which is difficult to treat, and requires a large amount of trees and other plants, which is not conducive to environmental protection; moreover, the product has defects such as low breaking strength, general filtration performance, and short service life.

Method used

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  • High-efficiency low-resistance non-woven filter material and production method thereof
  • High-efficiency low-resistance non-woven filter material and production method thereof
  • High-efficiency low-resistance non-woven filter material and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The web forming process of spunbond filament web is: first dry polyphenylene sulfide PPS slices, melt them through a screw extruder, filter the melt, enter the spinning assembly, and spray PPS fibers through the spinneret , after cooling, blowing, and air stretching, it is laid on the net forming machine to 100-400g / m 2 PPS filament fiber web. The technological parameter of PPS spunbonded filament of the present invention is as follows:

[0034]

[0035] Short fiber web forming process: Ultrafine PPS short fibers are opened, fed, and carded to form 50-200g / m on a high-speed web-laying machine. 2 PPS staple fiber web, short fiber carding process of the present invention is as follows:

[0036]

[0037] Then the PPS staple fiber web and filament fiber web are simultaneously entered into the high-pressure hydroentanglement machine for high-pressure hydroentanglement reinforcement. The hydroentanglement reinforcement process parameters of the present invention are a...

Embodiment 2

[0049] The web forming process of spunbond filament mesh: the polyester slices are dried first, melted by a screw extruder, filtered through the melt, and then enter the spinning assembly, and the polyester fibers are sprayed out through the spinneret, cooled and blown, Air stretching, laying on the net forming machine to 100-300g / m 2 PET filament fiber web;

[0050] The process parameter of PET spunbonded filament of the present invention is as follows:

[0051]

[0052] Short fiber web forming process: PET short fibers are opened, fed, and carded to form 50-200g / m on a high-speed web-laying machine 2 PET staple fiber web, the short fiber carding process of the present invention is as follows:

[0053]

[0054] Then the PET staple fiber web and filament fiber web are simultaneously entered into the high-pressure hydroentanglement machine for high-pressure hydroentanglement reinforcement. The hydroentanglement reinforcement process parameters of the present invention a...

Embodiment 3

[0065] The web forming process of spunbonded filament mesh: the two kinds of slices with a weight ratio of 50% high polymer polyester PET: 50% polypropylene PP are dried separately, and then enter their respective screw extruders for melting, and after the melt is filtered , into the two-component spinning assembly, and the fibers containing two components are ejected through the spinneret, cooled and blown, and air-stretched to form a two-component fiber web in a web forming machine; the two-component fiber web of the present invention The process parameters of spunbonded filament are as follows:

[0066]

[0067] Short fiber web forming process: the split fibers are opened, fed, and carded to form 50-200g / m on a high-speed web-laying machine 2 Superfine fiber web, short fiber carding process of the present invention is as follows:

[0068]

[0069] Then the split fiber short fiber web and the two-component filament web are simultaneously entered into the high-pressure h...

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Abstract

The invention discloses a high-efficiency low-resistance non-woven filter material. According to the filter material, a filament fiber serves as a spinning raw material to prepare spun bonded filament mesh to serve as a framework, a short fiber layer is laid on the spun bonded filament mesh surface to form a filtering surface, repeated high-pressure spunlace, strengthening, drying and functional treatment are performed through a spunlace machine, and the filter material is subjected to slitting, coiling and forming. The filter material has the advantages of having excellent mechanical performance of the filament non-woven fabrics and excellent filter effects of short fibers, and the product can be recycled.

Description

technical field [0001] The invention relates to a high-efficiency and low-resistance substitute for traditional filter paper, especially a high-efficiency and low-resistance non-woven filter material used in the field of environmental protection, and also relates to a manufacturing method of the filter material. Background technique [0002] At present, oil, engine, and filter cartridge dust collectors on the market are mostly filtered by traditional filter paper. This filter paper adopts a wet forming process, and the main component of the filter paper is plant fiber or a composite of plant fiber and glass fiber. This process produces a lot of wastewater, which is difficult to treat, and requires a large amount of trees and other plants, which is not conducive to environmental protection; moreover, the product has defects such as low breaking strength, general filtration performance, and short service life. Contents of the invention [0003] The technical problem of the p...

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 Applications(China)
IPC IPC(8): B01D39/16B32B27/12B32B27/08D04H5/08D04H5/02
Inventor 刘书平
Owner SHANGHAI BG INDAL FABRIC