Composition for printing recording materials

A printing process showing no catalytic fading when a dyestuff or a dyestuff mixture of a first step and a second step are brought in contact on a substrate and having a common overlapping area on said substrate comprising in said first step applying at least one dyestuff or a dyestuff mixture selected from the group consisting of dyes of the formula (I), (II), (IIIa), (IIIb), (IV), (V), (VI), (VII), (VIII), (IX), (X) and (XI)

• with a being from 4 to 0 and b being from 0 to 4 with the proviso that the sum of a+b does not exceed 4 and c from 1 to 2,
• wherein dye composition (X) is a mixture comprising 61 parts of the dye (Xa), 28 parts of the dye (Xb) and 9 parts of the dye (Xc)
• and in said second step applying at least one dyestuff or a dyestuff mixture selected from the group consisting of the dyes of the formula (I) or (II) or (IIIa) or (IIIb) or (IV) or (V) or (VI) or (VII) or (VIII) or (IX) or (X) or (XI) with the proviso that the dyestuff or mixture of dyestuffs in the second step is not the same dyestuff or mixture of dyestuff as selected in the first step.