non - pvc multi - layer film containing an outer layer , a supporting layer together with at least one interposed central layer , characterized in that the outer and supporting layers contain polymers having vicat softening temperatures of above approximately 121 ° c . and that at least one central layer contains polymers having softening temperatures of below approximately 70 ° c . the non - pvc multi - layer film is particularly suitable for the production of medical bags , in particular multi - chamber bags , as the materials of the individual layers are selected in such a manner that the film is transparent and flexible , but in particular also heat - sterilizable , fusible and heat sealable . the film is moreover completely recyclable .