| 摘要 |
A method in packaging a solid cylindrical body (10) of coins which are arranged in axial alignment and face-to-face contact. An elongated strip (11) of a film of plastic material is wrapped about the body of coins, projecting with marginal edge portions (14) from each end of the body of coins. The film wrapped about the body of coins is heated in a local region at each end of the body of coins to contract onto the end portions of the body of coins. The invention also relates to a film of plastic material forming an elongated strip, for practising said method. The marginal edge portions (17) of the strip are more heat-absorbing than the intermediate portion (18) of the strip to absorb heat when the film is being heated, more rapidly than the intermediate portion to contact locally in said marginal portions. |
