| 摘要 |
PURPOSE: To keep a tacky tape so as not to cause rolling failure by rolling a tape sheet immediately after applying a tacky agent to PVC film and drying the tacky agent in a stabilized state round a rolling core. CONSTITUTION: In this tacky tape 1 obtained by laminating a tacky agent layer 4 through a primer layer 3 onto a substrate of polyvinyl chloride to which a plasticizer and a stabilizer are added, the primer layer 3 is constituted by blending 40 pts.wt. MMA grafted natural rubber with 1-40 pts. wt. stabilized rosin ester having high softening point and the tacky agent layer 4 is constituted by blending 100 pts. wt. elastomer with 60-99 pts.wt. stabilized rosin ester having high softening point. |
