Dye, Ink, Ink Jet Recording Method, Ink Sheet, Color Toner and Color Filter
申请人:Harada Toru
公开号:US20080199615A1
公开(公告)日:2008-08-21
To provide a dye which has a good hue, which can form an image showing a high fastness under various using conditions and environmental conditions, and which is particularly suited for an ink, the dye is represents by formula (1):
wherein R
1
and R
2
each independently represents a monovalent group, Z represents a nitrogen atom or a carbon atom to which a hydrogen atom or a monovalent group is bonded, and M represents a hydrogen atom or a cation, provided that the dye has two azo groups.