Magenta dye mixture

A magenta dye combination comprising at least a first magenta dye of the following structure I:

• wherein X is a NR3R4 group or a hydroxyl group, wherein R3 and R4 may be same or different and are independently selected from an alkyl, alkenyl, aryl, aralkyl, or cycloalkyl group;
• Y1 and Y2 each independently are selected from a carbon atom or a nitrogen atom, provided that one of Y1 and Y2 is a nitrogen atom;
• Z is an atomic group necessary to form a 5- or 6-membered nitrogen-containing heterocyclic ring which may be condensed with another ring;
• and R1 and R2 are each independently selected from a hydrogen atom, halogen atom, alkyl, alkenyl, alkoxy, alkylamino, acetamido, sulfonamide, aryl, aralkyl, or cycloalkyl group;
• and a second magenta dye of the structure II:
• wherein:
• R1 represents an alkyl group having from 1 to 10 carbon atoms, a cycloalkyl group having from 5 to 7 carbon atoms, or an aryl group having from 6 to 10 carbon atoms;
• R2 represents an alkoxy group having from 1 to 10 carbon atoms, an aryloxy group having from 6 to 10 carbon atoms, naphthoxy, NHR5 or NR5R6;
• R3 and R4 are each independently R1, or either or both of R3 and R4 can be joined to the carbon atom of the aromatic ring at a position ortho to the position of attachment of the anilino nitrogen to form a 5- or 6-membered ring, or R3 and R4 can be joined together to form a 5- or 6-membered heterocyclic ring with the nitrogen to which they are attached;
• R5 and R6 each independently represents an alkyl group having from 1 to 10 carbon atoms, a cycloalkyl group having from 5 to 7 carbon atoms, or an aryl group having from 6 to 10 carbon atoms, or R5 and R6 may be joined together to form, along with the nitrogen to which they are attached, a 5- or 6-membered heterocyclic ring;
• and
• Z represents hydrogen or the atoms necessary to complete a 5- or 6-membered ring.