Manufacturing method and device for electret processed product
AssigneeToray Industries, Inc.
InventorsHiroyoshi Horiguchi, Masaaki Takeda
Life of this patent
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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.
Claims19
The manufacturing method of an electret processed product, comprising the steps of:
- allowing a suction nozzle to come into contact with a nonconductive fiber sheet 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 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;
- and
- drying the nonconductive fiber sheet.
A device for manufacturing an electret processed product, comprising in a continuous arrangement:
- papermaking means for manufacturing a nonconductive fiber sheet;
- a water penetrating means, corresponding to the nonconductive fiber sheet, for allowing a suction nozzle to come into contact with a nonconductive fiber sheet so as to cross in the lateral direction of 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, and sucking water from the suction nozzle;
- and
- drying means for drying the nonconductive fiber sheet.
Dependencies are inferred from the claim text.