Coating processes – With post-treatment of coating or coating material – Solid treating member or material contacts coating
Patent
1993-01-29
1995-03-14
Beck, Shrive
Coating processes
With post-treatment of coating or coating material
Solid treating member or material contacts coating
427356, 427359, 427364, 427428, 118410, 118414, B05D 312
Patent
active
053976010
ABSTRACT:
The invention relates to a method and device in a size press in which a nip is formed by a pair of rolls. A paper or board web is passed through the nip. The rolls are provided with surface-sizing units for applying films of size or coating agent onto faces of the rolls. Each surface-sizing unit comprises an application zone defined by a coating member, a front edge of the application zone and a feed chamber. The coating agent, such as a size, is fed, through holes or corresponding nozzles that have been formed into a wall of a feed pipe, into the feed chamber under pressure out of the feed pipe which is arranged transverse to the machine direction. The coating agent is fed out of the feed chamber into the application zone through a throttle placed between the feed chamber and the application zone. The throttle comprises a perforated plate or equivalent which extends across the width of the machine and which is detachably fixed to the frame constructions of the surface-sizing unit by fastening members.
REFERENCES:
patent: 4158076 (1979-06-01), Wallsten
patent: 4396648 (1983-08-01), Holt et al.
patent: 4405661 (1983-09-01), Alheid
patent: 4534309 (1985-08-01), Damarau et al.
patent: 4594963 (1986-06-01), Krautzberger
patent: 4869933 (1989-09-01), Sollinger et al.
patent: 4873939 (1989-10-01), Eskelinen
patent: 4944960 (1990-07-01), Sundholm et al.
patent: 4964364 (1990-10-01), Karna et al.
patent: 5010840 (1991-04-01), Busker et al.
patent: 5112653 (1992-05-01), Damrau et al.
R. Beisswanger und H. Sollinger, "Der Short Dwell Time Applicator (Kurze Verweilzeit zwischen Auftrag und Rakel) fur das Streichen von Paper und Karton, Wochenblatt Fur Papierfabrikatien", 23/24, pp. 887-892 (no month date) 1983.
Baveford Katherine A.
Beck Shrive
Valmet Paper Machinery Inc.
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