Flexographic printing process, characterized by comprising the following steps: a) Providing a radiation curable ink suitable for wet on wet flexographic printing, said ink comprising a combination of one or more non-reactive polymers and optionally one or more non reactive solvents with at least one reactive monomer and/or oligomer, pigments and additives, whereby said polymer(s) are soluble or partially soluble in said monomer(s) and/or oligomer(s), wherein the ink is either a gel that is temporarily brought to a liquid state with viscosity suitable to be used in flexographic printing and that returns to a gel state after having been applied to a substrate, wherein the ink is volatile organic compounds free and does not contain solvents, or is based on gel formation or gel temporary dissolution by controlling the Hansen Solubility Parameter of the ink system by very small changes in the amount of the solvent with the right Hansen Solubility Parameter to adjust the state from liquid to gel or vice versa, wherein the polymer is present in a range between 0.1% to 10% in a medium of more than 50% of liquid of the final formulation, where the majority is composed by the reactive non-volatile monomer or monomers and oligomers; b) Printing on the substrate a first layer of said ink; c) Bringing said printed first ink layer to a gel state, said gel ink layer having a strength sufficient to withstand subsequent printing steps; d) Subsequently printing a second ink layer in a liquid state over at least part of said previously gelled first ink layer, said second ink layer changing into a gel layer upon printing; e) Printing all sequential ink layers following the steps a) to c) up to the point that all colors are applied on to the substrate, f) Curing simultaneously all the ink layers at the end of the process using EB or UV radiation, wherein the ink in the gelled state has a hardness of at least 4 Shore 00 and at most 50 Shore 00, following the ASTM D2240-05 Standard Test Method for Rubber Property. a) Providing a radiation curable ink suitable for wet on wet flexographic printing, said ink comprising a combination of one or more non-reactive polymers and optionally one or more non reactive solvents with at least one reactive monomer and/or oligomer, pigments and additives, whereby said polymer(s) are soluble or partially soluble in said monomer(s) and/or oligomer(s), wherein the ink is either a gel that is temporarily brought to a liquid state with viscosity suitable to be used in flexographic printing and that returns to a gel state after having been applied to a substrate, wherein the ink is volatile organic compounds free and does not contain solvents, or is based on gel formation or gel temporary dissolution by controlling the Hansen Solubility Parameter of the ink system by very small changes in the amount of the solvent with the right Hansen Solubility Parameter to adjust the state from liquid to gel or vice versa, wherein the polymer is present in a range between 0.1% to 10% in a medium of more than 50% of liquid of the final formulation, where the majority is composed by the reactive non-volatile monomer or monomers and oligomers; b) Printing on the substrate a first layer of said ink; c) Bringing said printed first ink layer to a gel state, said gel ink layer having a strength sufficient to withstand subsequent printing steps; d) Subsequently printing a second ink layer in a liquid state over at least part of said previously gelled first ink layer, said second ink layer changing into a gel layer upon printing; e) Printing all sequential ink layers following the steps a) to c) up to the point that all colors are applied on to the substrate, f) Curing simultaneously all the ink layers at the end of the process using EB or UV radiation,