Method of molding shaped pulp articles from fiber pulp

Details Method of molding shaped pulp articles from fiber pulp Method of molding shaped pulp articles from fiber pulp

1995-02-06

1996-08-20

Lamb, Brenda A.

Paper making and fiber liberation

Processes and products

Conditioning, preparing or repairing of apparatus

162272, B01D 2446

Patent

active

055475442

ABSTRACT:
A mold composed of bonded water-insoluble particles and having a molding layer and a support layer. The molding layer includes first water insoluble particles, having an average size of 0.2 -1.0 mm bonded to form a layer having a thickness 1-20 times the average size of the first particles. The support layer positioned on the inner surface of the molding layer, on which the fiber bodies are not formed, includes second water-insoluble particles, having an average size of 1.0-10.0 mm, bonded to form a layer having a thickness of at least the average size of the second particles. The pulp mold has advantages in that it hardly suffers from clogging, it produces fiber bodies each having a smooth surface, it is free from damage caused by repeated use, and it produces fiber bodies in a short period of time.

REFERENCES:
patent: 1413178 (1922-04-01), Manson
patent: 2859669 (1958-11-01), Leitzel
patent: 3132991 (1964-05-01), Hornbostel et al.
patent: 3228826 (1966-01-01), Eastman et al.
patent: 3325349 (1967-06-01), Reifers
patent: 3542198 (1970-11-01), Borjeson
patent: 3619353 (1991-11-01), Williams
patent: 3985656 (1976-10-01), Arvanitakis
patent: 4500435 (1985-02-01), Muller

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