Applicator device for coating running webs
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United States of America Patent
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-
Jul 13, 1999
Issued Date -
N/A
app pub date -
May 23, 1994
filing date -
Jul 25, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a device 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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Cited Art Landscape
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