Dispensing – With cutter and/or punch – To form dispensing opening in container
Patent
1996-10-09
1998-11-03
Kashnikow, Andres
Dispensing
With cutter and/or punch
To form dispensing opening in container
222 95, 222105, B65D 1706
Patent
active
058296379
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a bag-in-carton with a flexible inner bag adhered to inside surfaces of a substantially rectangular parallelepiped carton, and a method and device for forming the bag-in-carton.
As a liquid packaging container bag-in-cartons have been conventionally used. The bag-in-carton usually has a rectangular parallelepiped having a flat bottom panel, a top panel, and four flat side panels between the bottom and the top panels. The inner bag is adhered to the inside surfaces of the four side panels. The bag-in-carton is generally used in packaging liquids of low viscosities, such as juice, liquor, etc. Practically when a content is discharged from the bag-in-carton, air corresponding to a discharged amount of the content enters the bag-in-carton.
When the bag-in-carton is used in packaging a liquid of high viscosity, such as ink, or others, it is necessary to draw the liquid through the pouring spout when the liquid is discharged from the bag-in-carton. But it is difficult to let air in the inner bag. Accordingly it is necessary to deform the inner bag to decrease its volume corresponding to a discharge of the content in the inner bag. The conventional bag-in-carton whose inner bag is adhered to the four inside surfaces of the carton cannot have the inner bag deformed when a content thereof is discharged, which makes it impossible to use the bag-in-carton as it is in packaging a liquid of high viscosity.
Furthermore, in using the bag-in-carton in packaging ink for printing machines, the pouring spout of the bag-in-carton is connected to the connector of a printing machine to discharge the content of the bag-in-carton.
To meet the purpose of feeding a constant amount of ink to a printing machine, it is necessary that an ink feed amount per a unit hour is stably constant.
The conventional bag-in-carton cannot have achievements to fulfill these functions, and the following achievements are required.
SUMMARY OF THE INVENTION
In consideration of these disadvantages the present invention was made, and an object of the present invention is to provide a bag-in-carton which can suitably hold liquid of high viscosity, such as ink and is deformed as the liquid of high viscosity is discharged to thereby stably feed the ink, and a method and a device for forming the bag-in-carton.
A first characteristic feature of the present invention is a bag-in-carton comprising a substantially rectangular parallelepiped carton having a pouring spout mounting panel; a flexible inner bag disposed in the carton, for holding a content; and a pouring spout mounted on the pouring spout mounting panel of the carton and passed through the inner bag and the pouring spout mounting panel, the inner bag being adhered to insides of the carton.
A second characteristic feature of the present invention is the above-described bag-in-carton, wherein the inner bag is fixed by an adhesive to, of insides of the carton, a substantially entire surface of the inside of the pouring spout mounting panel of the carton and substantially entire surfaces of the insides of a pair of the opposed side panels which are adjacent to the pouring spout mounting panel, the inner bag being gradually released off the insides of the carton as the content is discharged out of the inner bag.
A third characteristic feature of the present invention is the above-described bag-in-carton, wherein the carton has one closed side portion and the other closed side portion which are opposed to each other; the inner bag has one seal-closed side portion and the other seal-closed side portion which correspond respectively to said one closed side portion of the carton and said the other closed side portion thereof; and said one seal-closed side portion of the inner bag has a shape corresponding to that of said one closed side portion of the carton.
A fourth characteristic feature of the present invention is the above-described bag-in-carton, wherein the the inner bag is formed of a tubular film which is prepared by folding a sheet of f
REFERENCES:
patent: 2052445 (1936-08-01), Burns
patent: 4475670 (1984-10-01), Rutter
patent: 4842165 (1989-06-01), Van Coney
patent: 5156295 (1992-10-01), Gordon et al.
patent: 5433345 (1995-07-01), Sasaki et al.
patent: 5551600 (1996-09-01), Sasaki et al.
patent: 5566851 (1996-10-01), Sasaki et al.
Morisako Takeshi
Takemura Toru
Dai Nippon Printing Co. Ltd.
Douglas Lisa Ann
Kashnikow Andres
Riso Kagaku Corporation
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