2-2-1 Blocking resistance (heat resistance)1) Dry for 30mins in the 100C oven2) Heat to 180~200 C3) Take out the paper and have it folded (2 coated sides facing / touch each other).4) Put the 1kg weight on the folded paper and take it out after 5 seconds5) Observe state (No transferring)2-2-2 OPV film1) Form film on ivory board paper with bar coater No.14 (wet thickness: 32um) 2) Dry for 30mins in the 100C oven3) Measure gloss at 60o2-2-3 Results1) All of candidates are passed on blocking resistance test.2) The gloss is increased with increasing AN3) S20424-181C (AN36) & 181D (AN50) showed similar gloss in compared with market product but in case of 181D, viscosity is too high.Improvement blocking and heat resistance for Overprint varnish (OPVs)