Thickness-correcting coating method

Details Thickness-correcting coating method Thickness-correcting coating method

1987-01-16

1988-10-11

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

118410, 118679, 264 405, 264 407, 425141, 425224, 427 8, 427 9, 427 44, 427 48, B29C 4792

Patent

active

047769971

ABSTRACT:
A coating method and apparatus using an extrusion head to apply a liquid film to a running web. The thickness of the film is measured at two transverse points and a roller conveying the web is tilted to correct any difference. The amount of tilt per roller with a roller bearing span of 750 mm is 0.5 to 20 mm, preferably 0.5 to 15 mm.

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patent: 4587066 (1986-05-01), Rodriguez
patent: 4681062 (1987-07-01), Shibata et al.

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