| 摘要 |
PROBLEM TO BE SOLVED: To provide a packaging bag for a sheet-like adhesive skin patch containing a percutaneous permeable medicine such as an analgesic antiphlogistic, which can withstand a preservation test at 60°C for two weeks as an acceleration test for content preserving properties, has a good hand-tearable property when the bag is opened after storage, and can decrease the amount of discharging of organic solvents when a laminated body used for the bag is manufactured.SOLUTION: A packaging bag for adhesive skin patch is formed by heat-sealing a laminate in which at least a base material layer, an adhesive layer, a barrier layer, an anchor coat layer (AC layer) and a polyolefin resin layer are laminated in this order. The AC layer of the laminate is formed by applying, heating and drying an aqueous dispersion in which a polyolefin copolymerization resin containing 0.01-5 mass% unsaturated carboxylic acid or its anhydride is dispersed in a number average particle size of 1 μm or smaller without using a nonvolatile aqueous auxiliary agent with a thickness of 0.1-2 μm on the face of the barrier layer. The polyolefin resin layer is laminated on the AC layer by an extrusion coating method or an extrusion laminating method.SELECTED DRAWING: Figure 1 |
