Patent ID: 7029526

Claim:
A process for manufacturing a colorant composition in pigmentary form, comprising subjecting to a shearing force sufficient to break any colourant particles to a size less than 0.2 μm at −20 to 180° C. a mixture comprising: i) a phthalocyanine of formula wherein M 1 is H 2 ,Cu, Zn, Fe, Ni, Pd, VO, MnO or TiO and X 1 to X 16 are H, Br or Cl, at least one of X 1 to X 16 being Cl; or a mixture thereof; ii) a compound or mixture of compounds selected from those of formulae (II), (III), (IV) and (V) and tautomers thereof, wherein m is 0 or 1, n is 1 or 2, B 2 and B 3 are independently from each other CN, CONR 6 R 7 or CONR 6 Ar 1 , R 1 and R 2 are independently from each other Cl, R 6 or OR 6 , R 3 , R 4 and R 5 are independently from each other H, F, Cl, R 6 , CF 3 , OR 6 , CONR 6 R 7 , CONR 6 Ar 1 , SO 2 NR 6 R 7 or SO 2 NR 6 Ar 1 , and R 6 and R 7 are H, C 1 –C 8 alkyl or C 5 –C 8 cycloalkyl, Ar 1 is phenyl, benzyl, biphenyl, naphthyl, phenoxyphenyl, phenyithiophenyl or carbazolyl which is unsubstituted or substituted by 1 to 5 substituents selected independently from the group consisting of F, Br, Cl, R 6 , CF 3 , OR 6 , COOR 6 R 7 and CONR 6 Ar 3 , Ar 2 is phenyl, benzyl, biphenyl, naphthyl, phenoxyphenyl, phenylthiophenyl or carbazolyl when n is 1, respectively phenylen, biphenylen, naphthylen, oxydiphenyl, thiodiphenyl or carbazolylen when n is 2, each of which is unsubstituted or substituted by 1 to 5 substituents selected independently from the group consisting of F, Br, Cl, R 6 , CF 3 , OR 6 , COOR 6 , CN, CONR 6 R 7 , CONR 6 Ar 3 , NR 6 COR 7 , NR 6 COAr 3 , NR 6 SO 2 R 7 , NR 6 SO 2 Ar 3 , NO 2 , SO 2 NR 6 Ar 3 , SO 3 M 2 and COOM 2 , wherein M 2 is H, Na, Li, K, Ca 1/2 , Sr 1/2 , Ba 1/2 , Mg 1/2 or a negative charge neutralised by NH 4 + to or primary, secondary, tertiary or quaternary ammonium, and Ar 3 is phenyl, benzyl, biphenyl, naphthyl, phenoxyphenyl, phenyithiophenyl or carbazolyl which is unsubstituted or substituted by 1 to 5 substituents selected independently from the group consisting of F, Br, Cl, R 6 , CF 3 , OR 6 and NO 2 ; iii) a grinding auxiliary soluble in water to the extent of at least 10 g/100 ml and selected from the group consisting of organic salts, organic compounds, crystalline inorganic salts, and mixtures thereof; and iv) an organic liquid in which the grinding auxilary is soluble to the extent of less than or equal to 100 miligrams per liter at 20° C.