Method of making a coated paper

Details Method of making a coated paper Method of making a coated paper

2006-12-05

2006-12-05

Hug, Eric (Department: 1731)

Paper making and fiber liberation

Processes and products

With coating after drying

C162S137000, C162S181100, C162S181500, C162S164600, C427S209000, C427S326000, C427S419200, C428S689000

Reexamination Certificate

active

07144475

ABSTRACT:
The present invention discloses a paper coated with a new coating formulation. The coating formulation comprises a stable pigment slurry prepared without an acid-based dispersant. The coating formulation may be applied to the paper using a variety of methods: In general, an aqueous cationic pigment slurry is prepared comprising an alumina pigment slurry, a nonionic wetting agent, and a cationic interfacial modifier (dispersant). The aqueous cationic pigment slurry is then added to one or more additional conventional coating ingredients, such as binders, pigments, and additives to form a coating formulation. The coating formulation is then applied to at least one side of a paper and the coating is mechanically treated.

REFERENCES:
patent: 3720514 (1973-03-01), Honjo et al.
patent: 3804656 (1974-04-01), Kaliski et al.
patent: 4046946 (1977-09-01), Shaw
patent: 5741584 (1998-04-01), Imabeppu et al.
patent: 6096157 (2000-08-01), Imabeppu et al.
patent: 6576324 (2003-06-01), Yoshino et al.
patent: 6670037 (2003-12-01), Okura et al.

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