| 摘要 |
A packaging comprising a film which is folded over edge to edge to form a loop and enclosing the product to be packaged and which is heat shrunk around the latter, and an edging made of a relatively rigid material glued to the edges of the film before shrinkage has an improved tear strength when the ends of the edges of the film are not glued to the rigid edging in order to enable them to contract freely during the shrinkage. |
