Coating apparatus – Solid applicator contacting work – With work-handling or work-supporting
Patent
1990-09-28
1992-11-03
Chin, Peter
Coating apparatus
Solid applicator contacting work
With work-handling or work-supporting
118261, 118672, 118679, 162262, 162263, 162265, 162DIG10, B05C 100
Patent
active
051598930
ABSTRACT:
The invention concerns a method for regulation of the moisture profile of a paper or board web in a size press in which the paper or board web (W) is made to run through a nip (N) formed by the rolls (1,2) in the size press. Films (F.sub.1, F.sub.2) of size are applied to the faces (3,4) of the rolls in the size press by means of coating devices (10,20) so that these films (F.sub.1 F.sub.2) of size are transferred onto the paper or board web (W) in the roll nip (N). A size (F.sub.1) of substantially invariable profile is spread onto the face (3) of the first roll in the size press (5), and the profile of the size film (F.sub.2) to be spread onto the face (4) of the second roll is regulated so that the moisture profile of the web (W) at the reel-up can be made substantially invariable. The invention also concerns a film size press for implementing the method.
REFERENCES:
patent: 1195888 (1916-08-01), Wheelwright
patent: 4732776 (1988-03-01), Boisseuain
patent: 4957770 (1990-09-01), Howarth
patent: 4966093 (1990-10-01), Sommer
Chin Peter
Valmet Paper Machinery Inc.
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