| 摘要 |
(a) A roll of lay-flat tubular sheathing is cut to length for the product (2). (b) It is welded over the entire width of the tubing and (c), the product is inserted into the cut length (4). (d) The open end of the tubing is closed, again by welding. Stage (b) may precede or follow (a). It may alternatively follow (c). An Independent claim is included for the composite thermo-sealed tubular package. Preferred features: Stages (a) and (b) are simultaneous. In a composite otherwise identical to that claimed, a layer of adhesive intervenes between aluminum and paper.
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