Radiation curable inkjet inks for interior decoration

A radiation curable inkjet ink comprising:

• a polymerizable compound including a vinylether group or a vinylamide group;
• optionally an amine synergist including an alkanolamine group or a dimethyl benzoate group;
• optionally a Norrish Type II photoinitiator including a photoinitiating moiety selected from the group consisting of a thioxanthone group, a benzophenone group, a ketocoumarin group, and a camphorquinone group;
• and
• a singlet oxygen quencher according to Formula (I):
• wherein
• the integer n=0 if X represents S or the integer n=1 if X represents N;
• R1 and R2 each represent an alkyl group independently selected from a C1-C6 alkyl group;
• R3 represents a C1-C6 alkyl group or a -L4-(C═O)—O—R5 group;
• R4 represents a C1-C6 alkyl group or a -L5-(C═O)—O—R6 group;
• L1 to L5 each represent an alkylene group independently selected from an ethylene group, a propylene group and a butylene group;
• and
• R5 and R6 each represent an alkyl group independently selected from a C1-C6 alkyl group.