Method and apparatus for controlling coat-weight profile

Details Method and apparatus for controlling coat-weight profile Method and apparatus for controlling coat-weight profile

1998-03-30

2000-02-15

Lamb, Brenda A.

Coating apparatus

Control means responsive to a randomly occurring sensed...

Condition of coated material

118413, B05C 302

Patent

active

060247975

ABSTRACT:
A method and apparatus for applying a uniform coating to a moving paper web by utilizing a coating applicator with regional cross-machine zones from which coating quality or excess coating can be monitored and analyzed. As the coating conditions vary between regional zones, upstream liquid coating flow parameters can be varied for a particular region to render uniform coating profiles across the entire machine-direction of the web.

REFERENCES:
patent: 2946307 (1960-07-01), Warner
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patent: 4791879 (1988-12-01), Eklund et al.
patent: 4873939 (1989-10-01), Eskelinen
patent: 5173120 (1992-12-01), Suzumura et al.
patent: 5432353 (1995-07-01), Goss et al.
patent: 5583782 (1996-12-01), Heaven et al.
patent: 5665163 (1997-09-01), Li et al.
patent: 5882406 (1999-03-01), Becker et al.

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