LAMINATION-SEPARABLE CONTAINER

Japanese Patent JP3910059

B2

PROBLEM TO BE SOLVED: To provide a lamination-separable container wherein a ventilation passage extending from an air-introducing hole to the body section of an external container can be easily formed by surely and smoothly separating an internal bag from the internal surface of the external container, in an area from the periphery of the air- introducing hole to the shoulder section in an initial stage when the container is used.
SOLUTION: This lamination-separable container 10 comprises the external container 16 which has flexibility and is equipped with the air-introducing hole 15, and the internal bag 17 which is fitted on the internal surface of the external container 16 under a separably joined state. The, air is fed into a space between the external container 16 and the internal bag 17, and the internal bag 17 is contracted while being separated from the external container 16, and a content is discharged by the lamination-separable container 10. Then, an uneven rib 11 is formed on the internal surface of the external container 16 at a neck section 12 and a shoulder section 24 between the periphery of the air-introducing hole 15 and the body section 18. In this case, the uneven rib 11 induces the separation of the internal bag 17 from the internal surface of the external container 16 so that the ventilation passage 23 extending from the air-introducing hole 15 to the body section 18 of the external container 16 may be formed.

Masahiro Oka
Takashi Okuno

JP2001388859A

April 25, 2007

December 21, 2001

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Kao Corporation

A45D24/26; B65D77/06; B65D77/04; B65D83/00; (IPC1-7): B65D77/06; A45D24/26; B65D77/04; B65D83/00

JP2001072131A
JP8072842A
JP11310271A

Osamu Hatori
Yoshiyuki Matsushima
Shuichi Maeda

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