| abstract |
An object of the present invention is to provide a laminate capable of improving handleability at the time of sticking to an adherend and suppressing variation in solubility of a layer of a water-soluble material. The present invention has a layer of biodegradable material containing aliphatic polyester and having a thickness of 10 to 500 nm, and a layer of water-soluble material disposed on at least one side of the layer of biodegradable material, The layer of the water-soluble material is a first layer having a thickness of 1 to 20 μm including the water-soluble polymer (a) and a thickness of 10 μm including the water-soluble polymer (b) in order from the closest to the layer of the biodegradable material. A laminate comprising a 10 mm fiber structure and a second layer having a thickness of 1 to 20 μm containing a water-soluble polymer (c) is provided. |