Patent ID: 7172350

Claim:
A forming method using a thermal transfer printing sheet, comprising the steps of: a step (S 100 ) for forming a base material ( 10 ) using a resin; a step (S 300 ) for printing a thermal transfer printing sheet ( 21 ) to form a conduction film ( 24 ) on a surface of the formed base material ( 10 ), wherein the conduction film ( 24 ) includes a metallic conduction film ( 20 ) and an ink conduction film ( 22 ); a step (S 400 ) for heating a surface of the printed base material ( 10 ) and depressing the ink conduction film ( 22 ) on the base material ( 10 ) and a part of the base material ( 10 ) underneath the ink conduction film ( 22 ) by thermal diffusion; and a step (S 500 ) for cooling the base material ( 10 ).