Coated filter material

A filter material and film-coated technology, which is applied in the field of non-woven film-coated filter material products, can solve the problems of poor bending resistance of glass fibers and easy breakage of filter materials, and achieve easy dust removal, excellent mechanical properties, and high collection efficiency. high effect

Inactive Publication Date: 2009-02-11
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the relatively poor bending resistance of glass fiber, this kind of glass fiber coated filter material has great problems when it is processed into a pleated air filter. The filter material is easy to break, so a bending-

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0015] Embodiment: the 260g / m in the present invention 2 The spunbonded nonwoven filter cloth (raw material is polyester or polypropylene) is covered with a layer of polytetrafluoroethylene (PTFE) film, and the fibers constituting the spunbonded nonwoven filter cloth are sheath-core bicomponent fibers. The melting point is lower than that of the core fiber).

[0016] The thickness of the polymer microporous membrane is between 5-150 μm, and the porosity is above 95%.

[0017] Its performance parameters are as follows:

[0018]

[0019]

[0020] Comparison with other product performance:

[0021] Above-mentioned embodiment and other product performance comparison table

[0022]

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Abstract

The invention discloses a membrane mulching and filtering material which comprises a spun-bonding nonwoven material and a layer of polymer microporous membrane covered on the surface of the spun-bonding nonwoven. The material has high collection efficiency and excellent mechanical properties and is easy to remove dust.

Description

technical field [0001] The invention relates to a non-woven film-coated filter material product used in air filtration. Background technique [0002] PET long fiber non-woven fabric and polymer polytetrafluoroethylene film composite filter material is a new type of filter material developed in recent years, mainly used in the field of air filtration. It gives full play to the respective advantages of PET long-fiber non-woven fabric and PTFE, makes up for their respective deficiencies, and works together to produce a good comprehensive effect. [0003] The Chinese patent (Application No. 03129430.8) titled "Filtration Material of Polytetrafluoroethylene (PTFE) Composite Membrane" discloses a filter material of polytetrafluoroethylene composite membrane used in the air filtration industry, which is made of glass fiber, poly Two materials of tetrafluoroethylene are compounded, in which glass fiber is the base cloth, polytetrafluoroethylene is the surface film, and the two are ...

Claims

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Application Information

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IPC IPC(8): B01D69/12B01D71/36B01D39/16B32B27/12
Inventor 纪舜卿李星
Owner TORAY FIBER RES INST(CHINA) CO LTD
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