| 摘要 |
<p>On the surface of a cover material agent increasing friction is spread on a paper-based underlay. The agent contains solid particles attached to the surface of the material with the help of a heat-resisting polymer bonding agent the temperature resistance of which is at least 160° C, preferably at least 180° C. On the reverse of the material at the same region as the friction-increasing agent there is a heatsealable area of adhesion (3). The cover material is an end cover sheet (4) to be attached to the end of a paper roll.</p> |
