| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a composite pigment raw material excellent in preservation stability, having no problem of reacting with water, utilizing a metal or a metal compound, and to provide a composite pigment imparting an aqueous ink composition for inkjet, maintaining dispersion stability in an aqueous system, having excellent printing qualities and preservation stability, exhibiting quick-drying properties and giving recorded matter excellent in water resistance, light resistance and glossiness. <P>SOLUTION: The composite pigment raw material includes a structure wherein a resin layer and a pigment layer are sequentially laminated on the surface of a sheet-shaped substrate, and the pigment layer is the composite pigment raw material having a structure wherein a silicon oxide layer, a metal or a metal compound layer, and a silicon oxide layer are laminated sequentially. The pigment layer of the composite pigment raw material is peeled from the sheet-shaped substrate while using the resin layer as the boundary and is crushed to obtain the composite pigment. <P>COPYRIGHT: (C)2011,JPO&INPIT |
