作者: Masaru Shimada , Toshiyuki Kawanishi , Tamotsu Aruga , Hiroyuki Uemura , Kakuji Murakami
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摘要: An aqueous ink composition for ink-jet recording comprising an solution of a water-soluble dye formula (I) and humectant dissolved in water: ##STR1## wherein R 1 2 each represent hydrogen, alkyl group, alkoxy halogen, carboxyl group or sulfonic acid group; 3 4 hydroxyl unsubstituted substituted amino X represents --O--, --CH --, --C H --CH═CH--, --S--, --SO -- --; Ar phenyl naphthyl M hydrogen ion, alkali metal cation, amine cation ammonium ion; n is integer 1, 3.