Process for producing resonant tag

A process for producing a resonant tag, wherein a metal foil having a thermal adhesion adhesive applied to at least one face thereof is stamped out into a circuit-like shape and is adhered to a base sheet,

• said process comprising:
• stamping out the metal foil into a predetermined shaped metal foil portion while being passed through a die roll having thereon a stamping blade with a predetermined shape and a transfer roll in contact with the die roll which functions also as a die back-up roll;
• holding the resultant metal foil portion obtained by the stamping-out operation onto the surface of the transfer roll by suction holes formed in the transfer roll;
• transferring the metal foil portion obtained by the stamping-out operation onto a second transfer roll in contact with the transfer roll, the second transfer roll being formed therein with protrusions and suction holes so as to correspond in shape to metal foil portions obtained by the stamping-out operation;
• and
• thermally adhering the metal foil portion obtained by the stamping-out operation to the base sheet running between the second transfer roll and the adhesive roll.

An apparatus for producing a resonant tag comprising:

• a die roll having thereon a stamping blade with a predetermined shape;
• a transfer roll functioning also as a die back-up roll in contact with said die roll;
• and
• an adhesive roll for thermally adhesion in contact with said transfer roll at its another face,
• wherein an appropriate number of suction holes are formed in said transfer roll so as to correspond in shape to metal foil portions obtained by the stamping-out operation to hold the stamped metal foil portions onto the roll.

An apparatus for producing a resonant tag comprising:

• a die roll having thereon a stamping blade with a predetermined shape;
• a transfer roll functioning also as a die back-up roll in contact with said die roll;
• a protrusion transfer roll in contact with said transfer roll;
• and
• an adhesive roll for thermal adhesion,
• wherein an appropriate number of suction holes are formed in said transfer roll and said protrusion transfer roll so as to correspond in shape to metal foil portions obtained by the stamping-out operation to hold the stamped metal foil portion onto the rolls, and protrusions are formed on said protrusion transfer roll so as to correspond in shape to the stamped metal foil portions to be transferred.