| 摘要 |
A composition comprising: (a) a major dye component which is a mixture of phthalocyanine dyes of Formula (1) and salts thereof: wherein: M is Cu or Ni; Pc represents a phthalocyanine nucleus of formula; R<SUP>1 </SUP>and R<SUP>2 </SUP>independently are H or optionally substituted C<SUB>1-4</SUB>alkyl; R<SUP>3 </SUP>is H or optionally substituted hydrocarbyl; and R<SUP>4 </SUP>is optionally substituted hydrocarbyl; or R<SUP>3 </SUP>and R<SUP>4 </SUP>together with the nitrogen atom to which they are attached represent an optionally substituted aliphatic or aromatic ring system; x is 0.1 to 3.8; y is 0.1 to 3.8; z is 0.1 to 3.8; the sum of (x+y+z) is 4; and the substituents, represented by x, y and z, are attached only to a beta-position on the phthalocyanine ring; and (b) a liquid medium which comprises water and an organic solvent or an organic solvent free from water. Also novel dyes, ink-jet printing processes, printed images, and cartridges. |
