Non-recirculating, die supplied doctored roll coater with solven

Coating apparatus – Interfacing control of plural operations

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Details

118693, 118261, B05C 1100

Patent

active

056288271

ABSTRACT:
A coater incorporates a die, a reservoir, a gravure cylinder, and a doctor blade for applying coating fluid to a moving surface. The flow rate of coating fluid to the gravure cylinder is controlled to equal the rate at which coating fluid is consumed by the coating process. This eliminates the need to recycle surplus coating fluid. The coating fluid can be quickly and conveniently replaced with a solvent in the reservoir when coating is not being performed to reduce the occurrence of coating defects arising from excessive evaporation of solvent and premature solidification of coating fluid.

REFERENCES:
patent: 2668438 (1954-02-01), Marquardt
patent: 2755669 (1956-07-01), Beard
patent: 3730089 (1973-05-01), McCutcheon
patent: 4284005 (1981-08-01), Weigele et al.
patent: 4332840 (1982-06-01), Tamaka et al.
patent: 4366754 (1983-01-01), Sarda
patent: 4490418 (1984-12-01), Yoshida
patent: 4518167 (1985-05-01), Dutko
patent: 4534290 (1985-08-01), Schroder et al.
patent: 4581994 (1986-04-01), Wildmann
patent: 4675230 (1987-06-01), Innes
patent: 4708629 (1987-11-01), Kasamatsu
patent: 4719799 (1988-01-01), Wicks et al.
patent: 4828779 (1989-05-01), Hiraki et al.
patent: 4864930 (1989-09-01), Runyan et al.
patent: 4871593 (1989-10-01), McIntyre
patent: 4876982 (1989-10-01), Claassen
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patent: 5318804 (1994-06-01), Yoshida
Product Literature: Doctor Blade Features and We Build a Better Doctor Blade, Harris and Bruno Machinery Company ( No Date Available).
Prodcut Literature: Rotocoater, Article, IR International (No Date Available).
Reprinted Article: A Review of Coaters for High/100% Solids Use, Paper, Film & Foil Converter (Mar. 1980).

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