Paper machine belt

Details Paper machine belt Paper machine belt

1983-09-19

1985-11-12

Chin, Peter

Paper making and fiber liberation

Apparatus

Running or indefinite length product forming and/or treating...

100151, 4283111, 4283142, 4283144, 4283155, 4283157, D21F 302

Patent

active

045526206

ABSTRACT:
An endless impervious, oil, abrasion and crush resisting belt for paper making machinery such as presses, especially of the extended nip type, calender rolls, and the like has a woven fiber base, such as scrim, and a urethane coating impregnating the base providing an integral layer of substantial thickness with pores forming a granite like finish providing excellent paper release properties. The surface finish of the belt can be modified with subsequent grinding and coating treatments and can be grooved if desired. The belt is formed by looping an endless scrim blanket around driving rollers providing a travelling run which is sprayed with a two component polyurethane coating which quickly gels to accommodate building up of a layer of the desired thickness by controlling the fluid flow and the speed of the travelling run.

REFERENCES:
patent: 4224372 (1980-09-01), Romanski
patent: 4227254 (1980-10-01), Gill
patent: 4229253 (1980-10-01), Cronin
patent: 4238287 (1980-12-01), Gill
patent: 4267299 (1981-05-01), Oechsle
patent: 4300982 (1981-11-01), Romanski

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