| 摘要 |
Polyethylene polypropylene or polystyrene are used to make the heat-sealed pack or box of any shape, with a plastics or metal foil insert below the lid and an opening in this insert which is covered by a perforated line on the pack top at right angles to the fold line of the upper cloth or towel contents. These are C C folded or interleaved, withdrawn by opening the perforation and oulling out through the opening revealed. The opening should be towards one end of the insert, and a second insert can be used close to the bottom of the pack. |
