| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing an easily dispersible composite organic pigment having improved weatherability, a core-forming organic pigment such as a composite carbon black having suppressed electrical conductivity or a composite pigment composed of a carbon black imparted with the properties of shell-forming inorganic powder. SOLUTION: The method for the production of a composite pigment comprises the dry treatment of an organic pigment or carbon black, an organic colorant derivative having an acidic or basic functional group or a triazine derivative having an acidic or basic functional group, and an inorganic powder. The invention further provides a method for the production of the dry-treated composite pigment comprising the use of a media-type dispersion machine and the simultaneous dry-treatment and pulverization. COPYRIGHT: (C)2004,JPO&NCIPI
|
