Stretchable pressure-sensitive adhesive sheet

摘要

This invention provides a PSA sheet that allows prevention or reduction of damage such as fracture with efficient stretch removability. A stretchable PSA sheet is provided, comprising a PSA layer and a film-like substrate supporting the PSA layer. The PSA sheet has a long section. The long section has a tapered segment that extends, tapering to a first end of the length direction and the film-like substrate has a minimum cross-sectional area larger than 0.30 mm2 in the tapered segment.

主权项

1. A stretchable pressure-sensitive adhesive sheet comprising:
a pressure-sensitive adhesive layer; and a film substrate supporting the pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive sheet has a long section, the long section has a tapered segment that extends, tapering to a first end of the length direction, and the tapered segment has a minimum cross-sectional area larger than 0.30 mm2, the tapered segment has a width W1 (mm) at the first end, a maximum width W2 (mm), and a length L (mm) from the first end of the length direction of the long section to where the maximum width W2 is located, satisfying an equation (W2−W1)/L<9.5/80.