Packaging bag with self-closeable outflow port, and method...

Details Packaging bag with self-closeable outflow port, and method... Packaging bag with self-closeable outflow port, and method...

2011-01-11

2011-01-11

Pascua, Jes F (Department: 3782)

Flexible bags

With closure

Self-closing type

C383S200000, C383S906000

Reexamination Certificate

active

07866886

ABSTRACT:
In the pouch of the present invention in which a pouring spout is formed by means of a heat-sealed part and a non-heat-sealed part by heat sealing plastic films, the inside surfaces of the films that form the portion of the boundary area between the heat-sealed part and non-heat-sealed part of the pouring spout passage on the side of the non-heat-sealed part contact each other so that no gaps are left in a closed state. Accordingly, even if the pouch is suspended with the pouring spout down following the opening of the pouring spout, the leakage of the contents such as a liquid or the like accommodated in the interior of the pouch from the pouring spout a small amount at a time can be securely prevented.

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