| 摘要 |
The binding tape is a laminated article (10) made of an oriented, crystalline, synthetic thermoplastic polymer. The laminated article consists of a base layer (11) of the polymer with a relatively lower average molecular weight and of a layer (12) of the same polymer but with a relatively higher average molecular weight. The latter layer is thinner than the base layer. The thinner layer can therefore be easily melted and forms the weldable side of the laminated article (10). All layers of the article have substantially the same planar crystalline orientation. The binding tape is intended as a material for tying packages. It is intended for those tying machines or joining devices in which the binding tape is melted by friction. <IMAGE> |
