| 摘要 |
A high strength laminate formed by stretching together is superposed relation at least two laminates of at least two films each, which films exhibit a distinct fibrous morphology with the fibres forming a distinct generally unidirectional grain when observed on a macroscale but with the fibre-portions strongly deflected from this direction when observed on a microscale and with said unidirectional grain in at least two of the films criss-crossing each other, so as to combine such laminates which are then separated by peeling apart. The resultant separated laminates have high strength with one highly smooth surface evidenced by high gloss and a high coefficient of friction particularly suitable for the production of high quality sacks while the opposite surface is slightly corrugated in its lengthwise direction. |
