Process for rapidly immobilizing paper coating compositions

Details Process for rapidly immobilizing paper coating compositions Process for rapidly immobilizing paper coating compositions

1989-11-06

1992-03-03

Lusignan, Michael

Coating processes

With post-treatment of coating or coating material

Chemical agent applied to treat coating

427341, 427391, 427395, 106213, 106214, B05D 302

Patent

active

050931598

ABSTRACT:
Rapidly immobilizing paper coating compositions may be prepared by formulating an aqueous coating composition comprising a cationic starch, pigment and sufficient base to obtain a pH above the pK of the starch derivative so that the starch is no longer cationic; coating the paper substrate; and lowering the pH of the coating such that the starch becomes cationic.

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