INK COMPOSITION, INKJET RECORDING INK AND INKJET RECORDING METHOD
申请人:Tateishi Keiichi
公开号:US20090269496A1
公开(公告)日:2009-10-29
An ink composition includes a colorant represented by the following formula (I); water; a guanidine-based compound; and a colorless water-soluble planar compound having more than ten delocalized π-electrons within one molecule:
wherein Pc represents a (k+l+m+n)-valent phthalocyanine nucleus represented by the following formula (II);
wherein the symbols in the formulae (I) and (II) are defined in the specification.