B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 75/58 (2006.01) B31B 19/64 (2006.01)
Patent
CA 2715820
A perforated large-size easy opening pouch is formed from a single sheet containing at least one layer of a film material, and the sheet forms a volume. The pouch also contains a seal containing a perforation. The perforation is completely surrounded by the seal. When a tear is initiated along the perforation, the tear propagates to a non-sealed portion of the pouch. A sealing jaw and a method for forming such a pouch is also described.
L'invention porte sur une poche perforée à ouverture facile et de grande dimension qui est formée à partir d'une unique feuille contenant au moins une couche d'un matériau de film, et la feuille formant un volume. La poche contient également un joint contenant une perforation. La perforation est entièrement entourée par le joint. Lorsqu'une déchirure est initiée le long de la perforation, la déchirure se propage vers une partie non scellée de la poche. L'invention porte également sur une mâchoire d'étanchéité et sur un procédé de formation d'une telle poche.
Bhattacharjee Gautam
Zhang Longfei
Kirby Eades Gale Baker
The Procter & Gamble Company
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