Easily openable fastener tape, packaging bag with easily...

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 33/25 (2006.01) A44B 19/16 (2006.01) B31B 19/90 (2006.01)

Patent

CA 2665043

A band-like base (321) of a male member (32) of a fastener tape (3A) fitted to the inner surface of a bag body (2) has a body (3211) on which an interlocking part (31) is provided, a thin wall part (3212) joined to the opening side of the body (3211), a thick wall part (3213) joined to the opening side of the thin wall part (3212), and a projecting part (3214) provided on the thick wall part (3213). The female member (33) has a structure similar to that of the male member. When the fastener tape (3A) is fusion bonded to the bag body (2), gaps are formed between the thin wall parts (3212, 3312) and films of the bag body (2), which facilitates bending of the thin wall parts (3212, 3312).

L'invention concerne un ruban de fixation facile à ouvrir, un sac d'emballage avec ruban de ruban facile à ouvrir et un procédé de fabrication d'un ruban de fixation facile à ouvrir. Une base (321) en forme de bande d'un élément mâle (32) d'un ruban de fixation (3A) disposée sur la surface interne d'un corps de sac (2) présente un corps (3211) sur lequel une partie de verrouillage réciproque (31) est disposée, une partie de paroi mince (3212) liée au côté d'ouverture du corps (3211), une partie de paroi épaisse (3212) liée au côté d'ouverture de la partie de paroi mince (3212), et une partie de projection (3214) disposée sur la partie de paroi épaisse (3213). L'élément femelle (33) présente une structure analogue à celle de l'élément mâle. Lorsque le ruban de fixation (3A) est lié par fusion au corps de sac (2), des intervalles sont formés entre les parties de paroi mince (3212, 3312) et les films du corps de sac (2), ce qui facilite la flexion des parties de paroi mince (3212, 3312).

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