PIGMENT COMPOSITION AND PRODUCTION THEREOF

PROBLEM TO BE SOLVED: To obtain a pigment composition capable of exhibiting an especially excellent dispersive power, flowability and damping water resisting property in the case of using as a pranographic printing ink by coating a dis-azo pigment with a calcium salt of a rosin and an aluminum salt....

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Bibliographische Detailangaben
Hauptverfasser:	TAKAMI HISANORI, KONUMA TAKESHI
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES FILLING PASTES INKS LAKES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NATURAL RESINS ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain a pigment composition capable of exhibiting an especially excellent dispersive power, flowability and damping water resisting property in the case of using as a pranographic printing ink by coating a dis-azo pigment with a calcium salt of a rosin and an aluminum salt. SOLUTION: This pigment composition is obtained by coating (A) a dis-azo pigment obtained by coupling (i) a tetrazonium salt consisting mainly of 3,3'- dichlorobenzidine with (ii) a coupling component consisting mainly of acetoacetoxylidide with (B) a calcium salt of a rosin and an aluminum salt. In the component (B), it is preferable to contain 0.1-3mols of calcium and aluminum based on 1mol of rosin, and the ratio of calcium to aluminum is (80:20)-(30:70). Also, the component (B) is preferably 15-40wt.% of the component (A). Thus the composition has an excellent dispersion property and also an effect of reducing a greasing.