BACKING HAVING THREE-LAYER STRUCTURE AND AQUEOUS PATCH USING THE BACKING

摘要

Disclosed herein is a backing having a three-layer structure prepared bysticking together an inner fiber layer for holding a pasty preparation, a filmlayerhaving through-holes, and an air-permeable outer fiber layer which preventsleakingout of the pasty preparation or a liquid component exuded from the pastypreparation, and also an aqueous patch using the backing which can be appliedfora long time.