05856398 is referenced by 3 patents and cites 6 patents.

There is provided an aqueous pigment dispersion for a light-shielding paper comprising a pigment component, an aqueous resin and water, wherein the pigment component contains 2 to 50% by weight of graphite in which at least 80% of the total number of particles thereof has the maximum diameter of 1 to 30 .mu.m, 2 to 60% by weight of a colored pigment, and 10 to 90% by weight of a white pigment, and each specific gravity of the colored pigment and the white pigment is 2.0 to 6.0 g/cm.sup.3. The pigment dispersion of the present invention can provide light-shielding properties by rendering coating onto a paper base material and also can provide a light-shielding paper which facilitates recycling and has a high quality when recycling of waste paper is effected.

Title
Aqueous pigment dispersion for light-shielding paper
Application Number
8/825501
Publication Number
5856398
Application Date
March 31, 1997
Publication Date
January 5, 1999
Inventor
Tsutomu Fujigamori
Tokyo
JP
Hisao Tanaka
Tokyo
JP
Kosaku Tsuji
Tokyo
JP
Tetsuro Oizumi
Tokyo
JP
Agent
Parkhurst & Wendel L
Assignee
Toyo Ink Manufacturing
JP
IPC
C08K 3/34
C08K 3/30
C08K 3/26
C08K 3/04
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