| 摘要 |
A quilted laminar film structure comprising two layers of dissimilar thermoplastic, for example, one layer of low-density polyethylene and another layer of high-density polyethylene which are heat sealed together along a plurality of intersecting heat seal lines. Such laminar materials are adapted for employment as over wrap packaging materials, thermoplastic bag structures and, in particular, thermoplastic bags characterized by having a specific square bottom configuration. |
