Chemistry of carbon compounds – Miscellaneous organic carbon compounds
Patent
1980-05-01
1981-11-17
Griffin, Ronald W.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
106 20, 106 27, 106 30, 106219, 106241, 106308N, 106308F, 106308M, 260 23S, 260 24, 260 27R, 260DIG38, C09D 1102, C09D 1106
Patent
active
043010490
ABSTRACT:
An azo pigment suitable for use in gravure printing ink is produced by treating 100 parts by weight of a starting azo pigment with from 1 to 30 parts by weight of an amine, from 0.1 to 0.5 equivalent of a fatty acid and/or rosin or a derivative thereof, based on the amine, and from 0.5 to 50 parts by weight of a resin containing carboxyl groups and having an acid value of at least 50. The thus-produced azo pigment may be formulated in gravure printing ink, which exhibits improved gloss, flowability and aging discoloration characteristics. Such an ink practically does not penetrate through even when printed on cheap paper or uncoated paper.
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Funatsu Takenori
Inuzuka Yoichi
Maejima Masuhiko
Tsuji Kosaku
Griffin Ronald W.
Toyo Ink Mfg. Ltd.
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