Method of producing pulp moldings

Details Method of producing pulp moldings Method of producing pulp moldings

2005-07-19

2005-07-19

Halpern, Mark (Department: 1731)

Paper making and fiber liberation

Processes and products

Article forming processes

C162S221000, C162S222000, C162S226000, C162S389000, C162S397000, C162S407000, C162S409000, C425S175000, C425S182000, C249S063000, C249S065000, C264S086000, C264S087000

Reexamination Certificate

active

06918997

ABSTRACT:
A method of producing a pulp molded article comprising the steps of assembling splits (10, 11) each having a suction passageway and a papermaking screen (5) into a papermaking mold (1), filling the cavity of the papermaking mold (1) with a pulp slurry, discharging the liquid component of the pulp slurry through the suction passageway to deposit pulp fiber on the inner side of the papermaking screen (5) into an undried wet molded article, and dewatering the undried molded article deposited on the inner side of the papermaking screen (5), wherein the splits (10, 11) each have a large number of flow passageways (2) for feeding a purging fluid for cleaning the papermaking screen (5), and the purging fluid is ejected from the outer side of the papermaking screen (5) toward the cavity through the flow passageways (2) during the filling with the pulp slurry.

REFERENCES:
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patent: 9-132900 (1997-05-01), None
patent: 11-342550 (1999-12-01), None

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