Ink comprising a compound of Formula (1) and salts thereof: Formula (1) wherein: Pc represents a phthalocyanine nucleus of Formula (2); Formula (2) x is greater than 0 and less than 1.8; y and z are both greater than 0; and the sum of (x+y+z) is 2.4 to 4.5: and a liquid medium. Also an ink-jet printing process, a material printed with an ink of the invention and an ink jet printing cartridge containing an ink of the invention ##STR00001##
Compounds of Formula (1) and salts thereof: ##STR00001## wherein: M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group; Pc represents a phthalocyanine nucleus; R.sup.1 and R.sup.3 are H or optionally substituted C.sub.1-4 alkyl; R.sup.2 and R.sup.4 are H or optionally substituted hydrocarbyl; x is 0.0 to 3.9; y is 0.1 to 4.0; z is 0 to 3.9. Compositions, inks, ink-jet printing processes and cartridges, printed materials and ink jet printing cartridges are also disclosed.
A composition comprising: (a) a major dye component which is a mixture of phthalocyanine dyes of Formula (1) and salts thereof: ##STR00001## wherein: Pc represents a phthalocyanine nucleus of formula; ##STR00002## 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 3 to 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. Also ink-jet inks and cartridges, printing processes, printed material and dye mixtures.
A novel compound having sufficiently high fastness to light, heat, humidity and active gas in the environment and a coloring composition using the compound, particularly, an ink for ink jet recording, an ink jet recording method and a method for improving the preservability of formed image, which can form an image having high fastness to light and ozone gas in the environment. A phthalocyanine dye mixture having a specific structure and an ink, an ink for ink jet recording, an ink jet recording method and a method for improving the preservability of formed image, using the phthalocyanine dye mixture.
A composition comprising: (a) a major dye component which is a mixture of copper phthalocyanine dyes of Formula (1): CuPc.beta.-(SO.sub.3M).sub.x.beta.-(SO.sub.2NH.sub.2).sub.y Formula (1) wherein: Pc represents a phthalocyanine nucleus of formula; ##STR00001## M is a cation; x and y each independently have an average value of from 0.5 to 3.5; (x+y)=4; and the sulfo and sulfonamide substituents are attached 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 ink-jet printing processes, printed images, ink-jet printers and ink-jet cartridges.
