| 摘要 |
PCT No. PCT/JP87/00274 Sec. 371 Date May 17, 1988 Sec. 102(e) Date May 17, 1988 PCT Filed Apr. 30, 1987 PCT Pub. No. WO88/02484 PCT Pub. Date Apr. 7, 1988.A method of measuring adhesive strength is disclosed, characterized by the steps of: keeping the surface of a substrate adhered with an adhesive sheet in a fixed relative position to the pickup roller an auxiliary roller projecting from a machine frame; securing the tip end of either the adhesive sheet or the lead-in tape leading said adhesive sheet to the pickup roller; setting a specific peeling angle for peeling the adhesive sheet from the surface of the substrate; pulling the adhesive sheet by rotating the pickup roller at a constant speed while maintaining the set angle; peeling off the adhesive sheet 2 from the substrate, and subsequently winding it onto the pickup roller; detecting the torque of the pickup roller using a torque detector; and displaying and/or recording the adhesive strength of the adhesive sheet to said substrate based on output signals from the torque detector.
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