| 摘要 |
A cross-laminate web is formed of two oriented films, the films being arrang ed so that the main direction of orientation of the first film (A) generally follows the longitudinal direction (D) of the web and the main direction of the second film (B) is perpendicular (F) to that direction. The coefficient of elasticity of the material of the first film, in an unoriented state, is at least 15 % lower than that of the material of the second film, and the heat shrinkability of the first film is greater than that of the second film. Bag s formed from the cross-laminate have heat seals with improved shock peel strength. |
