| 摘要 |
PURPOSE:To obtain an OHP film free of possibility of positional errors at the time of printing or possibility of fusing due to setting the film upside-down, by providing an optical detection marker consisting of a releasable adhesive sheet. CONSTITUTION:One side of a detection marker sheet 2 is partially or entirely coated with a pressure-sensitive adhesive 1. For easy releasing of a detection marker, it is desirable to provide the detection marker with a dry edge. The dry edge means an edge part of the detection marker which part is not coated with the adhesive so that it can be easily held with fingers. The shape and the number of dry edge parts may be arbitrarily selected, unless the holdability of the detection marker onto the OHP film 3 is impaired. The detection marker consisting of the releasable adhesive sheet is adhered to the OHP film 3. Accordingly, the position of the detection marker can be accurately read. |
