BLISTER PACK

摘要

Blister Pack The invention relates to a blister pack comprising a base with product unit retaining wells and a covering film thereon to seal said wells, each well having a side wall and a well base and containing at least two product units arranged one above the other, wherein said side wall is thinner than said well base and is deformable to create a product unit retaining means when pressure is applied to said well base to release the uppermost product unit from the well, said retaining means serving to retain the subsequent product unit in said well and being deformable under further pressure exerted on said well base whereby to permit release of said subsequent product unit. The blister pack can be produced by cold deep-drawing of polypropylene films or plastics films having similar mechanical properties.