Aru Corporation

Ryoichi Ohtsubo

Yoshihiro Koyanagi

The compression storage bag includes a storage bag main body, which has an entrance-exit portion (or an opening portion) on one side, for putting in and taking out goods to be stored. The opening portion is made open-close free, by open-close means. The compression storage bag has a first non-return valve on the opposite side of the opening portion. This first non-return valve is provided with one side extending to the inside of the storage bag main body, and the other side extending to a path that connects communicatively with the exterior of the storage bag main body. Moreover, the compression storage bag has an outlet, which makes it possible for the air inside the storage bag main body to flow out through the first non-return valve and the path. In particular, a second non-return valve, which has an opening portion through which air is sucked out of the interior of the storage bag main body, is formed at a different place from the first non-return valve.

Compression storage bag

A method of producing a compression preservation bag includes the following first step and second step, thus allowing the longitudinal and widthwise lengths thereof to easily changed, and thus, providing for a wide size variation of the bag. The first step is carried out to form a rectangular, flat, cylindrical, and bottomed bag part formed of a laminate film and having a mouth portion at one end thereof in a longitudinal direction thereof. The second step is carried out to install a closing structure made of synthetic resin and having a length corresponding to a length of the mouth portion of the bag part on a region in the vicinity of the mouth portion of the bag part by thermal fusion or the like. The closing structure functions to freely open and close the mouth portion of the bag part.

Method and apparatus for producing a compression preservation bag

A method of producing a compression preservation bag includes the following first step and second step, thus allowing the longitudinal and widthwise lengths thereof to easily changed, and thus, providing for a wide size variation of the bag. The first step is carried out to form a rectangular, flat, cylindrical, and bottomed bag part formed of a laminate film and having a mouth portion at one end thereof in a longitudinal direction thereof. The second step is carried out to install a closing means made of synthetic resin and having a length corresponding to a length of the mouth portion of the bag part on a region in the vicinity of the mouth portion of the bag part by thermal fusion or the like. The closing structure functions to freely open and close the mouth portion of the bag part.

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Sakurai, Japan

Ryoichi Ohtsubo