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Filter material for air filter, method for manufacturing same, and air filter provided with same

A technology for air filters and filter materials, which is applied in the field of filter materials for air filters, and can solve the problems of increased capture efficiency of filter materials, increased pressure loss of filter materials, and increased power consumption.

Active Publication Date: 2015-12-16
HOKUETSU KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to increase the capture efficiency of the filter material, it is necessary to increase the deployment of fine-diameter fibers with a large surface area, but at the same time the pressure loss of the filter material will also increase
High pressure loss will increase the operating load of the intake fan and cause an increase in power consumption, so it is not good in terms of energy saving and lower operating costs.

Method used

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  • Filter material for air filter, method for manufacturing same, and air filter provided with same
  • Filter material for air filter, method for manufacturing same, and air filter provided with same
  • Filter material for air filter, method for manufacturing same, and air filter provided with same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Submicron glass wool fiber (B-00-F, average fiber diameter 0.33 μm, manufactured by Lauscha Fiber International Co.) 25 parts by mass, polyester core sheath binder fiber (Ester4080, fineness 1.7dtx (fiber diameter 13 μm), fiber length 5mm , manufactured by Unitika Co., Ltd.) 40 parts by mass, 35 parts by mass of chopped glass fiber (CS06JAGP024, fiber diameter 10 μm, fiber length 6 mm, manufactured by Owens Corning (Japan) Co., Ltd.) In water having a value of 3.0, it was pulverized using a beater to obtain a fiber slurry having a solid content concentration of 0.5%. Next, the obtained slurry was made into paper using a papermaking cylinder to obtain wet paper. Next, 100 parts of fluororesin (NKGUARDS-09, manufactured by Nikka Chemical Co., Ltd.) and 2 parts of alkyl sulfate sodium salt surfactant (Emal10G, manufactured by Kao Corporation) were added to water and the solid content concentration was adjusted to 0.204% by mass to obtain an impregnating liquid, apply this...

Embodiment 2

[0050] Use 100 parts of fluororesin (NKGUARDS-09, manufactured by Nichika Chemical Co., Ltd.)) and 8 parts of alkylsulfate sodium salt surfactant (Emal10G, manufactured by Kao Co., Ltd.) were added to water and the solid content concentration was adjusted to 0.216% by mass of the impregnation solution, except that, in the same manner as in Example 1 to obtain a basis weight of 80g / m 2 filter media for air filters. In addition, the impregnation adhesion amount of the impregnating liquid is converted to a solid content of 0.8g / m 2 .

Embodiment 3

[0052] Add 100 parts of fluororesin (NKGUARDS-09, manufactured by Nichika Chemical Co., Ltd.) and 12 parts of alkyl sulfate sodium salt surfactant (Emal10G, manufactured by Kao Corporation) to water and adjust the solid content concentration to 0.224 The impregnating liquid of mass %, except that, obtain basis weight 80g / m in the same manner as Example 1 2 filter media for air filters. In addition, the impregnation adhesion amount of the impregnating liquid is converted to a solid content of 0.8g / m 2 .

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Abstract

The present invention provides a filter material for an air filter that has a PF value higher than that up to now and an air filter provided with the same. This filter material for an air filter is formed from a wet type nonwoven fabric that includes glass fibers with an average fiber diameter less than 1 [mu]m and binder fibers. The wet type nonwoven fabric includes a fluorine resin and a surface active agent, and does not include a binder resin or includes a binder resin at 50% by mass or less to the fluorine resin.

Description

technical field [0001] The invention relates to a filter material for an air filter. More specifically, it relates to filter materials for air filters used in clean rooms, clean benches, air filters for air conditioners in buildings, and air cleaners used in the fields of semiconductors, liquid crystals, food, pharmaceuticals, and medical care, and their equipment. air filter. Background technique [0002] In order to capture submicron or micron unit dust particles in the air, air filter capture technology is used. Air filters are roughly classified into coarse dust filters, medium-performance filters, high-performance filters (HEPA filters (High Efficiency Particulate Air Filter, High Efficiency Particulate Air Filter), ULPA filters, etc. Device (UltraLowPenetrationAirFilter, ultra-low penetration rate air filter)) and so on. [0003] As the main required characteristics of the filter medium for air filters, in addition to the capture efficiency, there is pressure loss w...

Claims

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Application Information

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IPC IPC(8): B01D39/20D04H1/4218D04H1/542D21H13/10D21H13/40F24F7/00
CPCB01D39/2024D04H1/4218D04H1/4382B01D2239/12B01D2239/0645B01D2239/0421D04H1/542D21H13/40D21H15/02B01D2239/086B01D2239/1233F24F8/108B01D39/20D21H13/10Y02A50/20D21H13/24D21H17/09D21H17/53
Inventor 佐藤正山本弘之目黑荣子根本纯司楚山智彦
Owner HOKUETSU KK
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