Romaco Pharmatechnik Gmbh

Horn & Noack Pharmatechnik Gmbh

Günter Albrecht

Jörg-Uwe Bippus

Manfred Rohrmus

Udo Guth

In a blister pack comprising a base foil with chambers formed therein for receiving a product sealed into the chambers, a rupture foil disposed on the base foil to close and seal the chambers and a plastic foil disposed on the rupture foil for the protection of the rupture foil, wherein the plastic foil is attached to the rupture foil with a retaining force which is lower than the force with which the rupture foil is attached to the base foil, except for a limited edge area of the rupture foil which is delimited by a seal edge and a perforation extending along the seal edge, so that, upon removal of the plastic foil and the rupture foil from the base foil in the limited edge area where the rupture foil is not attached to the base foil, the rupture foil breaks away from the plastic foil when reaching the perforated seal edge so that the chamber remains reliably covered by the rupture foil while the plastic foil is peeled off the rupture foil.

Blister pack

In an apparatus for applying a cover foil to a bottom foil having a containment structure formed therein, the containment structure is formed into sections of the bottom foil in a molding tool through which the bottom foil is moved section-by-section. The bottom foil is then guided over an application roller which has depressions in which the containments formed into the bottom foil are received while a cover foil is applied to the bottom foil. The depressions in the application roller are arranged, in the circumferential direction of the application roller at a slightly larger distance from one another than the containments formed into the bottom foil so that the bottom foil is slightly stretched on the application roller. Means are provided for adjusting the lengths of the bottom foil section moved through the molding tool depending on the position of the cover foil relative to the bottom foil.

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Karlsruhe, Germany

Günter Albrecht