Pressure-sensitive adhesive sheet

A pressure-sensitive adhesive sheet comprising a substrate and a pressure-sensitive adhesive layer provided on at least one face of the substrate, wherein

• the substrate is a non-porous polyurethane-based resin film,
• the pressure-sensitive adhesive layer is formed of a pressure-sensitive adhesive comprising a base polymer and a tackifier resin,
• the tackifier resin consists of one or more species of tackifier resin TL having a softening point of from 50° C. to less than 105° C.,
• the pressure-sensitive adhesive sheet has a thickness of 15 μm or greater,
• the substrate has a thickness of 10 μm or greater, and
• the pressure-sensitive adhesive layer has a thickness of 5 μm or greater;
• wherein
• the PSA sheet shows a recovery rate at 100% elongation of 70% or higher, and
• the pressure-sensitive adhesive layer shows a displacement of 0.5 mm or greater according to the following holding power test:
• <Holding power test>
• At 23° C., the pressure-sensitive adhesive layer is applied over a 10 mm wide by 20 mm long bonding area to a polyoxybenzylmethylenglycolanhydride plate as an adherend;
• a 1 kg load is applied in the length direction;
• after one hour, the displacement from the initial point where first applied is determined.