ABSORBENT LAYER FOR BLISTER PACKS, LAMINATE COMPRISING SAME, AND BLISTER PACK USING SAID LAMINATE

摘要

The purpose of the present invention is to provide an absorbent layer for blister packs, which imparts sufficient formability and is free from forming failure even if a pocket is formed to a certain depth. An absorbent layer for blister packs according to the present invention sequentially comprises an outer skin layer, an intermediate layer containing an inorganic absorbent and a binder resin, and an inner skin layer containing a high-density polyethylene and a polypropylene resin in this order, and satisfies at least one of the following conditions (a)-(c). (a) The inner skin layer contains 3-70% by weight of a high-density polyethylene and 97-30% by weight of a polypropylene resin. (b) The arithmetic mean roughness (Ra) of a surface of the inner skin layer as determined in accordance with ISO 4287, said surface being on the reverse side of the intermediate layer-side surface, is 0.40 μm or more. (c) The coefficient of kinetic friction between the inner skin layer and an ultra high molecular weight polyethylene as determined in accordance with ISO 8295 is 0.200 or less.