Use of novel naphthol AS-pigment-mixtures in printing-materials
AssigneeClariant Plastics & Coatings Ltd
InventorsUlrike Rohr, Gemma Solduga Ramirez, Joachim Eichhorn
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Abstract
The invention relates to the use of pigment mixtures which contain at least one pigment of formulas (la) and (lb), wherein variables X1, X2, X3, X4, Y1, Y2, Z1 and Z2 are as defined and wherein the pigment mixtures are useful as dyes in printing methods.
Claims16
A colorant comprising a pigment mixture, wherein the pigment mixture comprises at least one pigment of each of the formulae (IIIa) and (IIIb)
- wherein, independently of one another,
- X1 is C1-C2-alkylcarbannoyl or di(C1-C2)-alkylcarbamoyl;
- Y is methyl, methoxy, ethyl or ethoxy;
- Z1 is phenyl or a phenyl substituted by one, two or three radicals selected from the group consisting of methyl, ethyl, methoxy, ethoxy and chlorine;
- Z2 is nitrophenyl or cyanophenyl, and
- wherein the pigments of the formulae (IIIa) and (IIIb) are different.
A printing ink comprising a pigment mixture including at least one pigment of each of the formulae (IIIa) and (IIIb)
- wherein, independently of one another,
- X1 is C1-C2-alkylcarbannoyl or di(C1-C2)-alkylcarbamoyl;
- Y is methyl, methoxy, ethyl or ethoxy;
- Z1 is phenyl or a phenyl substituted by one, two or three radicals selected from the group consisting of methyl, ethyl, methoxy, ethoxy and chlorine;
- Z2 is nitrophenyl or cyanophenyl, and
- wherein the pigments of the formulae (IIIa) and (IIIb) are different.
An electrophotographic toner or developer comprising a pigment mixture including at least one pigment of each of the formulae (IIIa) and (IIIb)
- wherein, independently of one another,
- X1 is C1-C2-alkylcarbamoyl or di(C1-C2)-alkylcarbamoyl;
- Y is methyl, methoxy, ethyl or ethoxy;
- Z1 is phenyl or a phenyl substituted by one, two or three radicals selected from the group consisting of methyl, ethyl, methoxy, ethoxy and chlorine;
- Z2 is nitrophenyl or cyanophenyl, and
- wherein the pigments of the formulae (IIIa) and (IIIb) are different.
An inkjet ink comprising a pigment mixture including at least one pigment of each of the formulae (IIIa) and (IIIb)
- wherein, independently of one another,
- X1 is C1-C2-alkylcarbannoyl or di(C1-C2)-alkylcarbamoyl;
- Y is methyl, methoxy, ethyl or ethoxy;
- Z1 is phenyl or a phenyl substituted by one, two or three radicals selected from the group consisting of methyl, ethyl, methoxy, ethoxy and chlorine;
- Z2 is nitrophenyl or cyanophenyl, and
- wherein the pigments of the formulae (IIIa) and (IIIb) are different.
A toner cartridge set comprising a yellow, magenta, cyan and black toner cartridge, wherein the magenta cartridge contains a toner comprising a pigment mixture including at least one pigment of each of the formulae (IIIa) and (IIIb)
- wherein, independently of one another,
- X1 is C1-C2-alkylcarbamoyl or di(C1-C2)-alkylcarbamoyl;
- Y is methyl, methoxy, ethyl or ethoxy;
- Z1 is phenyl or a phenyl substituted by one, two or three radicals selected from the group consisting of methyl, ethyl, methoxy, ethoxy and chlorine;
- Z2 is nitrophenyl or cyanophenyl, and
- wherein the pigments of the formulae (IIIa) and (IIIb) are different.
An inkjet ink set comprising a yellow, magenta, cyan and black ink cartridge, wherein the magenta ink cartridge contains an inkjet ink comprising a pigment mixture including at least one pigment of each of the formulae (IIIa) and (IIIb)
- wherein, independently of one another,
- X1 is C1-C2-alkylcarbamoyl or di(C1-C2)-alkylcarbamoyl;
- Y is methyl, methoxy, ethyl or ethoxy;
- is phenyl or a phenyl substituted by one, two or three radicals selected from the group consisting of methyl, ethyl, methoxy, ethoxy and chlorine;
- Z2 is nitrophenyl or cyanophenyl, and
- wherein the pigments of the formulae (IIIa) and (IIIb) are different.
Dependencies are inferred from the claim text.