Sanwa Automatic Machinery Co., Ltd.

Kabushiki Kaisha Hoseki Planning

Other

Totai Co., Ltd.

Isao Toshima

Misao Kishi

Shinji Murata

In an automatic filling and closing process for flexible package in which a film is supplied while being longitudinally fused, and the respective steps of filling the longitudinally fused film with contents, laterally fusing the film and cutting the laterally fused area are performed, a slit or a hole is intermittently formed in the supplied film, at a site from unwinding of the film to the longitudinal fusing, during interruption of the supply of the film in the steps of lateral fusing and cutting, and an opening fusing tape is placed over the slit or hole to weld around the perimeter of the slit or hole, thereby obtaining a tape-sealed bag which is easily openable in an opening direction approximately parallel with the laterally fused area. According to the invention, the technique of opening the bag by use of the easily openable fusing tape which employs a film having a relatively low separation strength can be applied to the pillow type bag which can be efficiently produced by use of the automatic filling and closing machine for a flexible package.

Tape-sealed bag and method for producing the same

Disclosed is a device for discharging the contents of a plastic bag comprising a pump having a suction nozzle for sucking the contents, a rotor mounted on a tip of the suction nozzle, a motor for driving the rotor mounted on the upper end of the suction nozzle and a discharge outlet provided at an upper portion of the suction nozzle, the pump being supported with a stand movable up and down, and a suspending member for supporting the plastic bag filled with fluid in a standing state, the suspending member being installed on the stand. The plastic bag is preferably a gusset bag having at least one vertical fused area, which is formed on a site not overlapping with a gusset fold, on at least one face of the plastic bag, wherein both edge portions of a film constituting the bag are fused with a sealing tape from the outside, and the bag can be opened by pulling one end of the sealing tape.

Device for discharging contents from bag

A sealed bag for microwave heating composed of a film having a fusing layer inside, said bag being sealed by fusing both sides of said film longitudinally with each other and both ends thereof laterally, wherein both sides of the film are turned outside to form two rows or turned-up faces, a turned-up line formed by said two rows of turned-up faces is covered with an easily openable fusing tape having an easily openable film inside and reinforced with a base material outside, said tape being fused with the turned-up faces of the film, and at least one end of the fusing tape not fused by a length which can be taken with fingers is left as a pick-up flap in the laterally fused area. When cooked food for a few people is hermetically packaged in this sealed bag and heated with a microwave oven, the bag is not broken until the internal temperature thereof approaches 100.degree. C. and is slightly opened when the inside thereof is sufficiently filled with water vapor, thereby discharging water vapor, and the separation of the tape after the completion of heating permits the contents to be easily taken out.

Growing community of inventors

Kanagawa-ken, Japan

Isao Toshima