| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressure-sensitive adhesive tape whose pressure-sensitive adhesive layer unnecessiates a specific covering such as a release paper or sheet and which unnecessiates back surface treatment for preventing peeling of the pressure-sensitive adhesive layer from the tape substrate. SOLUTION: The release paper-unnecressiated pressure-sensitive adhesive tape has a two-layer polyvinyl chloride based resin sheet having a surface part and a major part, and the surface part is a polyvinyl chloride based resin sheet comprising (a) 100 pts.wt. polyvinyl chloride based resin, (b) 50-200 pts.wt. polyethylene based resin power, (c) 0.03-3.0 pts.wt. polysiloxane based compound, and (d) 20-150 pts.wt. plasticizer, and a pressure-sensitive adhesive layer is provided on the back surface of the polyvinyl chloride based resin sheet of the major part.
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