Adhesive plaster and polyurethane non-woven fabric for adhesive plaster

An object of the present invention is to provide an adhesive plaster such as emergency plasters, wherein in the adhesive plaster with a very thin urethane nonwoven fabric having excellent breathability and elasticity as a support, by appropriately embossing a surface of the substrate, the balance of between various required properties such as self-rear surface adhesiveness, drying property, air permeability, interlayer strength or the likes is obtained in a high degree. The present invention provides an elongated shaped adhesive plaster in which an adhesive layer is laminated on the surface opposite to an embossed surface of an extra-fine urethane non-woven fabric having the embossed surface on one side, wherein the ratio (y/x) of the 30% tensile load (x) in a short side direction to the 30% tensile load (y) in a long side direction of the adhesive plaster is 0.8 to 2.0, the water retention ratio per weight of the urethane non-woven fabric is 0.8 or less, the adhesive strength of the adhesive plaster to a Bak