Yoshino Kogyosho Co., Ltd.

Yoshio Akiyama

Masashi Yoneyama

Shuichi Koshio

Hiroaki Tokuda

Takayuki Goto

Tsugio Nomoto

Yoshio Shibano

Masaaki Sasaki

Shigeru Tomiyama

Nobuo Yamanaka

Yasuyuki Shimizu

Harumi Kinoshita

Shoji Tanabe

Makoto Busujima

Akikazu Kosugi

Masunori Shimada

Senichi Okita

Shinji Shimada

Shigeru Hayakawa

Hiroshi Hidaka

Shintaro Kutsuzawa

Takashi Fujie

Shigeru Yoneyama

Takao Kurosawa

Masakazu Kudo

Koji Sasagawa

A delamination container () formed in a shape including a tubular mouth (la) and a trunk (), the container () including: an outer layer body () formed of a resin material; an inner layer body () formed of a resin material and disposed on an inner side of the outer layer body (); and an intermediate layer () formed of a resin material different from those forming the outer and inner layer bodies () and () and disposed between the outer and inner layer bodies () and (). The outer and inner layer bodies () and () and the intermediate layer () are formed by direct-blow molding a laminated parison including resin layers corresponding to them. At an opening end of the mouth (), an end portion of the intermediate layer () is covered by the outer and inner layer bodies () and ().

Delamination container

The blow molded preform of a laminated wall structure comprises a bulging shoulder portion, which has a diameter that widens slightly in the downward direction; a bottom shell portion for molding the bottom, which has been blow molded from the corresponding portion of parison P so as to have a widened and deformed shape; an inner overhang wall portion in any position starting from the opposite side of the neck ring and ending at the upper portion of the bulging shoulder portion, with the inner wall portion having a diameter that widens in the downward direction; and/or a radially widened connecting portion of an arced shape, which has a larger diameter than the barrel portion so that the entire bottom including the bottom shell portion takes a bulging spherical shape. With this configuration, no thick area is formed in the inner overhang wall portion on the opposite side of the neck ring and/or in the pinch-off portion.

Synthetic resin preform to be biaxially stretched and blow molded into a bottle

A container has a body which comprises front end rear walls, and the side walls. Each of the front and rear walls has an elliptic cross section, and is provided with a lateral recess. Each of the side walls is a vertical plan which intersects the elliptic cross section of the front and rear walls, and is provided with a plurality of reinforcements. The container has a bottom which comprises a peripheral wall connected to the body and a bottom wall. The peripheral wall comprises slightly inclined front and rear walls, and side walls inclined by a predetermined angle. The peripheral wall is provided with a reinforcing rib.

Synthetic resin container with thin wall

The blow molded preform of a laminated wall structure comprises a bulging shoulder portion which has a diameter that widens slightly in the downward direction; a bottom shell portion for molding a bottom, which has been blow molded from a corresponding portion of a parison so as to have a widened and deformed shape; an inner overhang wall portion in any position starting from the opposite side of a neck ring and ending at the upper portion of a bulging shoulder portion, with an inner wall portion having a diameter that widens in the downward direction; and/or a radially widened connecting portion of an arced shape, which has a larger diameter than a barrel portion so that the entire bottom including a bottom shell portion takes a bulging spherical shape.

A separable laminated container (A) of the present invention comprises an outer layer () made of synthetic resin and having an air suction hole () and an inner layer () made of synthetic resin and separably laminated on the inside of the outer layer, the inner layer having a portion previously separated from the outer layer just around the air suction hole. The air suction hole can be formed by driving a punch into the outer layer at a neck () of the separable laminated container from the outside, and punching just the outer layer leaving the inner layer behind. The portion of the inner layer previously separated from the outer layer may be left in the inwardly extended state. The inner layer is preferably made of synthetic resin having flextural modules of less than 10,000 kg/cm.

Separable laminated container and associated technology

A blow-molded synthetic resin bottle that can be fully flattened and easily restored to an original shape. The bottle includes at least a line of turn is formed on the shoulder, the body, and the bottom along the entire vertical circumference. Among the sections divided by this line of turn, at least a section is used as a shell section in which at least a nearly entire body portion of this section has relatively high rigidity. The other section is a reversible section in which at least a nearly entire body portion has relatively low rigidity and is capable of being deformed by resilient reversion. The neck is disposed on the shoulder, and the reversible section can be deformed and easily concaved into the shell section for volume reduction and then can be restored to the original shape.

Synthetic resin bottle

It is an object of the present invention to prevent the edge of the in-molded label from the crack due to the impact of dropping the container, especially to prevent the occurrence of the crack on the thin synthetic resin container and to provide the synthetic resin container which a reinforce rib is disposed on the wall surface of the container body corresponding to the edge of the in-molded label to surround the label edge or to locate the label edge in said rib.

Synthetic resin container bearing label

A separable laminated container (A) of the present invention comprises an outer layer ( ) made of synthetic resin and having an air suction hole ( ) and an inner layer ( ) made of synthetic resin and separably laminated on the inside of the outer layer, the inner layer having a portion previously separated from the outer layer just around the air suction hole. The air suction hole can be formed by driving a punch into the outer layer at a neck ( ) of the separable laminated container from the outside, and punching just the outer layer leaving the inner layer behind. The portion of the inner layer previously separated from the outer layer may be left in the inwardly extended state. The inner layer is preferably made of synthetic resin having flexural modules of less than 10,000 kg/cm .

A separable laminated container (A) of the present invention comprises an outer layer (,) made of synthetic resin and having an air suction hole (,) and an inner layer (,) made of synthetic resin and separably laminated on the inside of the outer layer, the inner layer having a portion previously separated from the outer layer just around the air suction hole. The air suction hole can be formed by driving a punch into the outer layer at a neck (,) of the separable laminated container from the outside, and punching just the outer layer leaving the inner layer behind. The portion of the inner layer previously separated from the outer layer may be left in the inwardly extended state. The inner layer is preferably made of synthetic resin having flexural modules of less than 10,000 kg/cm,.

A method for applying a label, and a label for in-mold molding which comprises a printed layer formed on a surface of a non-oriented plastic base film over which a membrane layer for bonding to be welded by the heat of molded article at the time of the in-mold molding is overlapped. The label is inserted into a mold for the in-mold molding, the label is held on the proper position in the mold by vacuum suction, or by static electricity, and a moldable article, such as a container, is molded by injecting, filling the plastics into the mold or by expanding a parison which was placed in the mold.

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Tochigi, Japan

Yoshio Akiyama