| 摘要 |
A puncture-resistant rollstock or bag (10) includes an inner bag formed from a seamless tube of material e.g. a lay-flat tube member (12) having a first tube wall (14) and an opposed second tube wall (16) and having a first tube edge (18), an opposed second tube edge (20), a first tube end (15) and an opposed second tube end (17) where the first and second tube walls define a product receiving chamber (22) and further having first and second outer film members (30,40) affixed to opposing outer surfaces respectively of the first and second tube walls and extending continuously between the first and second tube ends. The first and/or second outer film members may be narrower, coextensive, or extend beyond one or both of the first and second tube edges of the lay-flat tube member. In a bag embodiment a lateral seal (50) is provided through the first and second tube walls and the first and second outer film members and extends laterally across the width of at least the lay-flat tube member. <IMAGE> <IMAGE> |
