| abstract |
According to the present invention, An inner layer (F) of a non-stretchable film carrier, Based on a vinylaromatic block copolymer compound disposed on one of the surfaces of the film carrier layer (F) and foamed by microballoons, The layer (SK1) consisting of the compound, A layer made of a self-adhesive compound, based on a vinyl aromatic block copolymer-compound disposed on the surface of the film carrier layer (F) opposed to the layer (SK1) and foamed by microballoons 0.0 > SK2) < / RTI > At this time, the average diameters of the cavities formed by the microballoons in the self-adhesive compound layers SK1 and SK2 are 20 to 60 mu m independently of each other. |