Process for producing cast-coated papers

Details Process for producing cast-coated papers Process for producing cast-coated papers

1990-04-24

1991-08-27

Beck, Shrive

Coating processes

With post-treatment of coating or coating material

Solid treating member or material contacts coating

427342, 427366, 427370, 427391, 427395, 162136, B05D 312

Patent

active

050431900

ABSTRACT:
Cast-coated papers having high surface gloss, smoothness and high surface strength are produced by applying an aqueous pigment coating onto the surface of a base paper, drying the applied pigment coating to form a cast-coated layer, rewetting the pigment coating layer with a rewetting solution, pressing the rewetted pigment coating layer into contact with a heated, highly polished drum to impart a high gloss surface, the rewetting solution containing a dispersant and/or a release agent as its main components and having its pH adjusted to be between 2 and 4 by incorporation of at least one carboxylic acid selected from the group consisting of formic acid, acetic acid, tartatic acid, citric acid, lactic acid, succinic acid, malic acid and benzoic acid.

REFERENCES:
patent: 4048380 (1977-09-01), Blakey et al.
patent: 4265969 (1981-05-01), Yasuda et al.
patent: 4515833 (1985-05-01), Nojima et al.
patent: 4581257 (1986-04-01), Kondo et al.
patent: 4620992 (1986-11-01), Nojima et al.
patent: 4686119 (1987-08-01), Nojima et al.
patent: 4900583 (1990-02-01), Hirabayashi et al.
patent: 4975473 (1990-12-01), Kaneda et al.

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