| 摘要 |
The packaging film (1) comprises an aluminium-based support film and a fixing layer which can be joined to a support. The invention is characterized in that 1) the support film consists of two aluminium films, an outer film (10) and an inner film (12) which are joined to each other by an intermediate layer (11) made of a plastic material, 2) the aluminium films (1) are 8 µm - 40 µm thick, said thickness ranging, for example, from 8 µm - 25 µm if the film (1) is used to form a cap or a capping material (3, 51), said thickness ranging from 20 µm - 40 µm if the film is used to form a tray (8) such as a retortable tray, 3) the fixing layer is an extrusion layer or co-extrusion layer (13) made of plastic. |
