| 摘要 |
A mixture of phthalocyanine dyes of Formula (1) and salts thereof: Formula (1) wherein: M is Cu or Ni; Pc represents a phthalocyanine nucleus of formula (a); Formula (a) L is optionally substituted C1-20 alkylene, alkyenylene or alkynylene, optionally interrupted by -O-, -NH- or -S-; R1, R2, R3 and R4 independently are H or optionally substituted C1-4alkyl; R5 is H or an optionally substituted hydrocarbyl; or R4 and R5 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 n-position on the phthalocyanine ring. Also novel compositions and inks, ink-jet printing processes, printed images and cartridges. |
