Process for two-sided coating of a web

Details Process for two-sided coating of a web Process for two-sided coating of a web

1993-07-22

1994-03-22

Pianalto, Bernard

Coating processes

Measuring, testing, or indicating

Thickness or uniformity of thickness determined

427211, 427428, 427557, 427561, 427595, B05D 128

Patent

active

052962571

ABSTRACT:
In the two-sided coating of a web by feeding the web through the nip of a pair of pressing rolls onto which the coating substance is metered, the amount of the coating substance applied to each pressing roll is measured by infrared absorption and the relative coating quantities RW.sub.o onto the upper side and RW.sub.u to the underside are calculated by the relations

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