| 摘要 |
<p>PURPOSE:To provide an ink useful for an ink for photograbure excellent in fluidity and workability, having excellent coloring ability and consisting of an organic pigment and a pigment derivative. CONSTITUTION:(A) An organic pigment (e.g. dianthraquinonyl, anthrapyrimidine, furavanthrone, etc.) is blended with preferably (B) 0.1-30wt.%, more preferably 1-20wt.% pigment derivative of the formula I (D is an organic pigment residue except azo, preferably dianthraquinonyl residue, anthrapyrimidine residue, etc.; R1 is H, a 1-20C saturated hydrocarbon, unsaturated hydrocarbon or aromatic hydrocarbon; (m) is 0-3; (n) is 1-4; (m)+(n)=1-5), e.g. a derivative of the formula II, etc., to obtain the composition.</p> |
