Coating process and applicator device for coating running...

Details Coating process and applicator device for coating running... Coating process and applicator device for coating running...

B - Operations, Transporting

05

C

117/116, 32/56,

B05C 1/08 (2006.01) B05C 3/18 (2006.01) B05C 9/06 (2006.01) B05C 11/02 (2006.01) B05D 1/36 (2006.01) D21H 23/70 (2006.01)

Patent

CA 2035061

ABSTRACT OF THE DISCLOSURE In a process for the coating of a running web of paper or cardboard, provisions are that in a press gap formed between two rolls a coating substance applied in a very small quantity on the surface of the one roll is first pressed on the web leaving a very thin coat on the web which, however, covers all spots including the "mounds" of microroughness. Next, the second coat can be applied and dosed on the still moist first coat with the usual means. In the process, the first coat is preferably dosed on the shell of the first roll, by means of the peripheral grooves of a rotary doctor. The same may be performed also as regards the second coating on the web.

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