Phthalocyanine compounds and ink compositions comprising the same
View Patent ↗A process for coloration of a substrate comprising applying thereto by means of an ink-jet printer an ink composition comprising a compound of Formula (1) or salt thereof: wherein: M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group; Pc is a phthalocyanine nucleus of Formula (2); each R 1 and R 2 independetly are H, C 1-4 alkyl or C 1-4 hydroxyalkyl; R 3 is phenyl carrying 1 or 2 sulpho substituents or phenyl carrying at least 1 carboxy or 1 phosphato substituent and having further optional substituents; x, y and z are all greater than 0 and the sum of (x+y+z) is 2 to 5. Also novel compounds, compositions, printed substrates and ink-jet printer cartridges
1. A process for coloration of a substrate comprising applying thereto by means of an ink-jet printer an ink composition comprising a compound of Formula (1) or salt thereof:
wherein:
M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group;
Pc is a phthalocyanine nucleus of Formula (2);
each R 1 and R 2 independently are H, C 1-4 alkyl or C 1-4 hydroxyalkyl;
R 3 is phenyl carrying 1 or 2 sulpho substituents or phenyl carrying at least 1 carboxy or 1 phosphate substituent and having further optional substituents;
x, y and z are all greater than 0 and the sum of (x+y+z) is 2 to 5.
2. A process according to claim 1 wherein M is Cu or Ni.
3. A process according to either claim 1 or claim 2 wherein R 3 is phenyl carrying a single carboxy or sulpho substituent.
4. A process according to claim 1 wherein R 3 is 3-carboxy phenyl.
5. A process according to claim 1 wherein the sum of (x+y+z) is 3 to 4.
6. A compound of Formula (1) or salt thereof
wherein:
M is 2H, Si, a metal, an oxymetal group, a hydroxymetal group or a halometal group;
Pc is a phthalocyanine nucleus of Formula (2);
each R 1 and R 2 independently are H, C 1-4 alkyl or C 1-4 hydroxyalkyl;
R 3 is phenyl carrying 1 or 2 sulpho substituents or phenyl carrying at least 1 carboxy or 1 phosphate substituent and having further optional substituents;
x, y and z are all greater than 0 and the sum of (x+y+z) is 2 to 5, with the proviso that R 3 is not of Formula (3), Formula (4) or (5) or a salt thereof:
7. A compound according to claim 6 of Formula (6) or a salt thereof:
wherein:
M is 2H, Cu or Ni;
Pc is a phthalocyanine nucleus of Formula (2);
R 6 is sulpho or carboxy; and
x, y and z are all greater than 0 and the sum of (x+y+z) is 2 to 4.
8. A compound of Formula (6) according to claim 7 wherein R 6 is carboxy.
9. A composition comprising a compound as described in claim 6 and a liquid medium.
10. A substrate printed by means of a process as described in claim 1 .
11. An ink-jet printer cartridge comprising a chamber and an ink wherein the ink is in the chamber and the ink is a composition as defined in claim 9 .