| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressure-sensitive adhesive tape with which a polyethylene pipe has been stuck and with which the polyethylene pipe can be recycled to a polyethylene polymer of a good quality as it has been stuck. SOLUTION: A pressure-sensitive adhesive tape has the substrate of a polyolefin-based resin, which substrate has a surface at at least one side put into a printing and has a surface at either side laminated with a pressure- sensitive adhesive layer; the pressure-sensitive adhesive layer has as the main component an unvulcanized natural rubber-based pressure-sensitive adhesive and has a peeling pressure-sensitive adhesive strength at 180 degree to a polyethylene plate of 3-6 N/ 25 mm and a ball tack of 5 or more, by a measuring method on the basis of JIS Z 0237.
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