{HEAD ~ The polymerizable ink composition} 9, wherein {TAIL ~ the aromatic tertiary amine compound} is at least one of p dimethyl amino ethyl benzoate, p dimethyl amino benzoate 2 ethyl hexyl, p dimethyl amino methyl benzoate, benzoic acid 2 dimethyl amino ethyl, and p dimethyl amino buthoxy ethyl benzoate 
wherein
{ HEAD ~ The polymerizable ink composition } 9 , wherein { TAIL ~ the aromatic tertiary amine compound } is at least one of p dimethyl amino ethyl benzoate , p dimethyl amino benzoate 2 ethyl hexyl , p dimethyl amino methyl benzoate , benzoic acid 2 dimethyl amino ethyl , and p dimethyl amino buthoxy ethyl benzoate
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH