Double side coating method

Details Double side coating method Double side coating method

1990-04-26

1992-06-16

Lawrence, Evan

Coating processes

Measuring, testing, or indicating

Thickness or uniformity of thickness determined

427 40, 427 41, 427 44, 427209, B05D 306, B05D 500

Patent

active

051223864

ABSTRACT:
A double side coating method in which immediately after a first coating is carried out for the first side of a web, the first side of the web is supported in a non-contact manner, and a second coating is carried out for the second side of the web. Immediately before the second coating is carried out, the second side of the web is charged in unipolarity by corona discharges induced by a high voltage generating unit with an electrode.

REFERENCES:
patent: 4455327 (1984-06-01), Yoshida et al.
patent: 4457256 (1984-07-01), Kisleu et al.
patent: 4837045 (1989-06-01), Nakajima

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