Ink jet ink composition

A method for applying an image onto a recording medium, the method comprising the steps of:

• jetting droplets of a first ink jet ink and droplets of a second ink jet ink onto the recording medium;
• wherein the first ink jet ink is an ink jet ink composition comprising
• a radiation-curable medium;
• a gellant, wherein the gellant is an ester compound, the ester compound consisting essentially of a condensation product of a first reactant and a second reactant, wherein the first reactant is a compound A comprising at least 3 first functional groups, and wherein the second reactant comprises at least one compound B, wherein the at least one compound B comprises a second functional group, wherein the first functional group is a first group selected from a hydroxyl functional group and a carboxylic acid functional group and the second functional group is a second group selected from a hydroxyl functional group and a carboxylic acid functional group, wherein the first functional group is different from the second functional group, and;
• gel accelerator, wherein the gel accelerator is a compound according to formula I
• (ZR1R2R3R4)+X− formula I,
• wherein Z represents N or P,
• wherein R1 , R2 , R3 and R4 each independently represent an alkyl group, wherein at least one of R1, R2, R3 and R4 is an alkyl group comprising at least 8 carbon atoms, and
• wherein X− is selected from a halide, salicylate and thiosalicylate, and
• wherein the second ink jet ink comprises a gel accelerator according to formula I,
• wherein the relative amount of gel accelerator in the first ink jet ink is higher than the relative amount of gel accelerator in the second ink jet ink.