Dai Nippon Printing Co., Ltd.

Other

Riso Kagaku Corporation

Takeshi Morisako

Hiroshi Miyama

Takehiko Bizen

Yasuyuki Sasaki

Hiroko Tsukada

Toru Takemura

A method and apparatus for forming a bag-in-carton using a forming jig to shape a side-sealed closed portion of the inner bag in accordance with the related shape of the carton. The forming jig helps form a bag-in-carton having an inner bag formed with high precision and constant volume, thus ultimately permitting good discharge of contents in the bag-in-carton with little content in the inner bag after discharge.

Bag-in-carton and method and device for forming the bag-in-carton

A pouring spout 5 is mounted on the front surface of a carton 2. The pouring spout 5 pierces through an inner bag. Only a region which is slightly larger than the half of the inner bag 3 on the pouring spout side is adhered to the inner surfaces of the carton by a paste. As the content is discharged, since the movable portion of the inner bag is injected into the fixed portion fixed on the inner surfaces of the carton, as the content is discharged, the volume of the inner bag is decreased.

Pouring spout

Bag-in-carton and pouring spout thereof

Growing community of inventors

Tokyo, Japan

Takeshi Morisako