Manufacturing method and device for electret processed product

Details Manufacturing method and device for electret processed product Manufacturing method and device for electret processed product

2005-11-29

2005-11-29

Tentoni, Leo B. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Bulk deposition of particles by differential fluid pressure

C264S101000, C264S103000, C264S211140, C264S340000, C264S345000, C425S072200, C425S083100, C425S377000, C425S378100, C425S404000, C425S445000

Reexamination Certificate

active

06969484

ABSTRACT:
A manufacturing method of an electret processed product, comprising the steps of allowing a section nozzle (22) to come into contact with a nonconductive fiber sheet (S) so as to cross in the lateral direction of the sheet while running the sheet, allowing the surface of the sheet on the opposite side of the contact portion to come into contact with or to immerse into a water surface, sucking water from the suction nozzle (22) so that the water can be passed through the sheet in the thickness direction of the sheet to penetrate the water into the nonconductive fiber sheet (S), and drying the nonconductive fiber sheet (S), whereby a high quality and high performance electret processed product can be manufactured at a low cost.

REFERENCES:
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patent: WO 97/07272 (1997-02-01), None
patent: WO 00/01737 (2000-01-01), None
patent: WO 00/13765 (2000-03-01), None
patent: WO 01/26778 (2001-04-01), None
patent: WO 01/27371 (2001-04-01), None
patent: WO 01/27381 (2001-04-01), None
International Search Report for PCT/JP02/05691 mailed on Sept. 24, 2002.

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