| 摘要 |
This invention relates to a process for treating capsules intended for closing containers provided with a heat-sealing joint, composed of four layers, either a cardboard seal, a wax layer, an aluminium film and a final layer formed from a polymer, characterised in that the abovementioned wax 7 is subjected, before its introduction between the cardboard seal 6 and the aluminium film 8, to a microwave treatment in order to orient the wax molecules. <IMAGE> |
