AZO COMPOUND, AZO PIGMENT, DISPERSION CONTAINING THE AZO COMPOUND OR AZO PIGMENT, COLORING COMPOSITION, INK FOR INKJET RECORDING, INK TANK FOR INKJET RECORDING, INKJET RECORDING METHOD AND RECORDED MATERIAL
申请人:Hayashi Shinya
公开号:US20110001777A1
公开(公告)日:2011-01-06
To provide an azo pigment excellent in coloristic characteristics such as tinctorial strength and hue and at the same time, excellent in the durability such as light fastness and ozone resistance, a pigment dispersion containing the azo pigment, a coloring composition, and an ink for inkjet recording.
An azo pigment represented by the following formula (1), its tautomer, or a salt or hydrate thereof:
(wherein R
1
, R
2
, R
3
, Y, Z and G each independently represents a hydrogen atom or a substituent; n represents and integer of 2 to 4; and the formula represents a dimer through R
1
, R
2
, R
3
, Y, Z or G when n is 2, represents a trimer through R
1
, R
2
, R
3
, Y, Z or G when n is 3, and represents a tetramer through R
1
, R
2
, R
3
, Y, Z or G when n is 4).