Title:
IMPROVED FILM COATER METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO2004030832
Kind Code:
B1
Abstract:
An improved film coater (10)which utilizes one or more coater or applicators (16) to transfer coating to the outer surfaces (14) of at least one more rolls (12), which in turn transfers the coating from the roll surface (14) to one or more sides of the web (20) for coating paper is disclosed. The coater or applicator (10) includes a smoothing doctor (32) on the web (20) and downstream of the one or more rolls (12), and may also utilize humidity from one of steam showers (40) or a humidity enclosure (100) to assist smoothing. The web (20) may run in any direction, but preferably runs upwardly from the roll (12) toward the doctor (32) to reduce "film split" droplets effect. The present invention also reduces the fiber rise and arrange peel pattern on the coated web (20), resulting in a smooth uniform coated paper.
Inventors:
DAMRAU WAYNE A (US)
BERGIN JOHN F (US)
BERGIN JOHN F (US)
Application Number:
PCT/US2003/030288
Publication Date:
July 29, 2004
Filing Date:
September 26, 2003
Export Citation:
Assignee:
STORA ENSO NORTH AMERICA CORP (US)
DAMRAU WAYNE A (US)
BERGIN JOHN F (US)
DAMRAU WAYNE A (US)
BERGIN JOHN F (US)
International Classes:
D21H23/56; D21H25/08; B05C1/08; B05C11/04; (IPC1-7): B05D1/28; B05C1/08; B05C11/02; B05C11/04; B05D1/36; B05D1/40; B05D1/42; B05D3/00
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