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US 6,461,480 B1Granted
Method of manufacturing pulp mold formed product
AssigneeKao Corporation
InventorsShinji Otakura, Yoshiaki Kumamoto, Kenichi Otani, Tadaharu Ogawa, Atsushi Sato
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Abstract
A pulp molded article is produced by depositing pulp fiber on the outer surface of a papermaking core mold having a plurality of interconnecting paths connecting the outside and the inside to form a pulp deposited body, placing the pulp deposited body in a set of split molds, and then pressing the pulp deposited body for dehydration by a prescribed means.
Claims3
A method for producing a pulp molded article comprising the steps of:
- depositing pulp fiber on the outer surface of a papermaking core mold having a plurality of interconnecting paths connecting the outside and the inside to form a pulp deposited body;
- placing said pulp deposited body in a set of split molds;
- pressing said pulp deposited body for dehydration by a prescribed means;
- and
- feeding a fluid into said pressing member to inflate said pressing member thereby pressing said pulp deposited body placed in said split molds,
- wherein said core mold is inflatable and comprises an inflatable hollow pressing member and a stretchable net layer, which is located at the outer surface of said core mold.
3 more elements
An apparatus for producing a pulp molded article comprising:
- means for papermaking;
- and
- means for heat-drying,
- wherein said means for papermaking comprises an inflatable papermaking core mold having a plurality of interconnecting paths connecting the outside and the inside,
- wherein said core mold comprises an inflatable hollow pressing member and a stretchable net layer, which is located at the outer surface of said core mold, and
- wherein said heat-drying means comprises a set of split molds capable of holding said core mold having thereon said pulp deposited body.
3 more elements
Dependencies are inferred from the claim text.