| 摘要 |
A plastic film is produced in a tubular shape by extrusion. In this process, the outer surface, for example, of the tube is roughened and the tube is cut up in the longitudinal direction in order to divide it into strips. An adhesive is applied to the smooth surface of the strips and the self-adhesive strip thus obtained is wound onto a roll. From these strips, pieces are cut off and bonded to some places on the packages, which places come to rest on one another during stacking. The resistance of the packages to slipping is thus considerably increased. <IMAGE> |
