Patch backing for water-based pasty preparation

摘要: The present invention relates to a backing for water-based patch consisting of the following constituents, wherein is excellent in pasty preparation retention and moisture retention, improves persistence drug efficacy by inhibiting sublimation drug, gives neither restrained feeling nor rough due thin thickness an elasticity, controls permeability, almost no sticky thereby application. A laminate, laminate consists three layers, film layer having through-holes laminated between nonwoven fabric B, said resin containing olefin elastomer, through-hole area per hole 0.02-0.18 mm 2 , opening ratio 1-10%.