abstract |
A flexible multilayer film for forming a container defining a liquid-tight chamber for storing a liquid is described here. The film comprises a first layer ( 1 ) and a second layer ( 2 ). The first layer ( 1 ) is a barrier layer, for example, a PCTFE layer, which is arranged inwardly of the second layer ( 2 ) as seen in a direction from the chamber of the container formed from the multilayer film. The second layer ( 2 ) is a septum layer, for example, a TPE layer, having self-sealing properties so as to seal around a hypodermic needle penetrating said film. As seen in the above direction an innermost surface ( 5 ) of the film is weldable onto itself and is preferably made of a weldable layer ( 3 ) comprising PE and/or PP. |