Coating processes – Application to opposite sides of sheet – web – or strip – Roller applicator utilized
Patent
1989-02-22
1990-10-09
Beck, Shrive
Coating processes
Application to opposite sides of sheet, web, or strip
Roller applicator utilized
427428, 118 46, 118227, 101483, B05C 108
Patent
active
049619640
ABSTRACT:
A convertible coating apparatus provides one or two side coating of a web having wet ink thereon to permit both printing and coating to be carried out prior to any drying operation. The apparatus includes a coating applicator roller in contact with a relatively hard back-up roller. The coating applicator roller is supplied with coating in both the one and two side operations while the back-up roller is supplied with coating only in the two side operation. Water is supplied to the back-up roller in the one side operation and the back-up roller has a hydrophilic surface which, when supplied with water, repels the wet ink on the web passing through the couple and prevents smudging and offset of the ink to the back-up roller. A method of carrying out the one and two side coating is also disclosed. A turning roller is also provided which guides the freshly inked web between inking operations without smudging the ink on the web.
REFERENCES:
patent: 1711596 (1929-05-01), Grammer
patent: 1933161 (1933-10-01), Claybourn et al.
patent: 2513394 (1950-07-01), Barrett et al.
patent: 2970564 (1961-02-01), Warner
patent: 3000287 (1961-09-01), Heldens
Bashore Alain
Beck Shrive
Epic Products International Corp.
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