Toyo Seikan Kaisha, Ltd.

Yotaro Tsutsumi

Kikuo Matsuoka

Tadahiko Katsura

Kazumi Hirota

Masaomi Ikeda

Ichiro Hori

Senji Itoh

Yoshiaki Otsuka

Senji Ito

Hideaki Masuo

Toshihiko Hayashi

Noboru Wakayama

A laminated film bag is made of laminated films each composed of an outermost layer formed of a polyester resin film, an innermost layer formed of a polyolefin resin film and an intermediate layer formed of an aluminum foil, the polyolefin resin film has formed thereon score lines having a depth of 1/20 to 2/3 of the thickness of the polyolefin resin film and an opening width of 0.5 to 7 mm, at intervals of 1 to 15 mm.

Laminated film bag for packaging food

In automatically filling and sealing pouches at high speed a pouch supporting base continuously and non-stoppably travels on a conveying path passing a pouch dropping operation station, a filling up operation station, a sealing operation station and a supporting base collecting station in turn. In the pouch dropping operation station, pouches are dropped into the pouch supporting base after being opened one by one. In the filling up operation station, a fixed amount of substances fills the pouches through the rotary filling up apparatus from the opened filling up mouth of the pouches held by the pouch supporting base. In the sealing operation station the filling up mouth of the pouches is hermetically sealed by the sealing operation system apparatus. In the pouch supporting base collecting station, filled up pouches held by the pouch supporting base are suspended and conveyed, and the empty pouch supporting bases are collected and returned to the pouch dropping operation station.

Method, a line and a pouch supporting base for automatically filling up

A packing bag is formed by sealing longer side edges, and by sealing V shaped folded sheets to the shorter sides. A portion of the longer side edges is left unsealed to form an inlet port. A protected cylinder or handle may be attached to overlie the inlet port. Opposed notches are formed on both sides of the cylinder or handle to facilitate opening of the bag.

Laminated packing bag with spout formed from handle portion

Disclosed is an easily openable heat seal lid for sealing a vessel proper by forming a heat-sealed portion between the lid and the vessel proper, which comprises a laminate comprising at least an inner face member composed of a thermoplastic resin and a metal foil, wherein scores defining a portion to be opened are formed on the side inner than the portion to be heat-sealed so that the scores extend to the midway of the thickness direction of the metal foil, an opening tab is formed on the portion of the lid to be opened through a bonding fulcrum portion composed of a thermoplastic resin hot adhesive so that the push-tearing top end of the opening tab is located on the scores, and the peel strength between the opening tab and the lid in said bonding portion is at least 0.4 Kg/5 mm.

Easily-openable heat seal lid

Bag for holding liquid

Disclosed is an easily openable heat seal lid for sealing a vessel proper by forming a heat-sealed portion between the lid and the vessel proper, which comprises a laminate comprising at least an inner face member composed of a thermoplastic resin and a metal foil, wherein scores defining a portion to be opened are formed on the side inner than the portion to be heat-sealed so that the scores extend to the midway of the thickness direction of the metal foil, and said inner face member comprises at least one heat-sealable thermoplastic resin layer having an adhesion strength of at least 800 g/15 mm to the metal foil, a tear strength lower than 3.0 kg and a tensile modulus of at least 300 kg/cm.sup.2. In this heat seal lid, the resin layer can be broken sharply along the scores and opening can be accomplished very easily.

Growing community of inventors

Yokohama, Japan

Yotaro Tsutsumi