Recloseable package member

作者: Charles E Palmer

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摘要: A recloseable packaging member produced from a rectangular sheet of material that has strip foil bonded adjacent one its edges, and two the other edges together to form generally tubular configuration with at end. The associated portions are folded inwardly in overlapping relationship provide an end wall extends perpendicularly sidewall package. Reclosure wall, once it been opened, can be effected by folding upon itself so as interengage opposed

参考文章(3)
Donald S Koncak, Closure means for wrapped packages ,(1967)
Charles E Palmer, Reinforced plastic bag ,(1964)