Toyo Seikan Kaisha, Ltd.

Toyo Seikan Kaisya, Ltd.

Yoshimi Terajima

Hiroshi Akitoshi

Isamu Takeda

Nobuyuki Takakusaki

Kazumi Hirota

Nobuaki Nagatani

Masaomi Ikeda

Nobuaki Nagatami

A blow molding method for molding tube containers by introducing blow air into a parison having been extruded by an extruder is disclosed, which comprises introducing blow air into the parison to shape a tube container and form a discharge outlet in part of the wall of an unnecessary portion of the tube container located lower than the cutting position of the tube container, and further continuing the introduction of blow air. The blow air may be introduced horizontally by piercing the wall of a parison having been extruded from an extruder with a nozzle for introducing blow air or vertically by introducing blow air in the axial direction of the parison. The discharge outlet is formed in part of the side wall or bottom wall of the container below a cutting position preferably as low as possible. The discharge outlet may be formed by pressing the wall of a softening-state tube container against an opening of a passageway formed in the mold and connecting to the cavity with the compressed blow air to break through the tube container at the corresponding portion or by piercing with a needle-like member from outside the mold. This method enables one to shorten the cooling time necessary for cooling the tube container after blow molding and produce moldings having good dimensional accuracy with high efficiency.

Method for blow-molding tube container

A blow molding method by horizontal blow molding of piercing the wall of a parison having been extruded by an extruder with a blow nozzle is disclosed, which comprises moving forward the blow nozzle to pierce the parison, introducing blow air at least in the direction toward the bottom, i.e., opposite to the bottle neck and, after shaping of a hollow container by the blow air, forming an opening in the parison at a position in the vicinity of or above the blow nozzle-pierced portion to discharge the blow air having circulated inside the hollow container. In this blow mollding method, there is preferably used a blow air cylinder, which is constituted by (A) a blow nozzle having a mechanism for registering blowing inlets in at least part of a portion freely sliding forward and backward inside the body, having a tip portion with an outer diameter smaller than at about the center portion thereof and being of a shape of a closed injection needle, and having the blowng inlets located slightly at the back of the tip portion where the outer diameter is larger than that at the tip portion and smaller than that at the central portion and capable of introducng blow air in the direction toward the bottom, i.e., opposite to the bottle neck in an amount of 30% or more of the total blow air amount; and (B) a body provided outside and, at least partly, in cntact with the blow nozzle.

Method for blow-molding hollow container and blow air cylinder

Apparatus for substituting inert gases

An improved bag-shaped container with a straw insert hole formed thereon is disclosed. The straw insert hole extends through the body of the container and two sealing pieces are adhered to the inner surface of the body to fully close the straw insert hole. Further, a tab is disposed on the outer surface of the body to fully cover the straw insert hole. When an user wants to take the content out of the container, he first peels the tab and then causes a straw to pierce through the second sealing piece until its foremost end part is inserted into the interior of the container. Thus, he is ready to suck the content in the container. To facilitate piercing of the foremost end part of the straw the sealing piece is formed with a small hole or a weakened portion in the form of score. A method of producing bag-shaped containers with a straw insert hole formed thereon respectively is carried out by way of the steps of punching a straw insert hole on the sheet material, temporarily adhering a first sealing piece to the inner surface of the sheet material to cover the straw insert hole, temporarily adhering a tab to the outer surface of the sheet material, finally adhering the tab to the first sealing piece and adhering a second sealing piece to the inner surface of the sheet material or to the first sealing piece to cover the latter.

Bag-shaped container with a straw insert hole formed and method of

The apparatus comprises a sealed chamber including a sterilizing section, a cooling section and a conveyor including carrier receivers and circulated through the sterilizing and cooling sections. The flat flexible packages containing substances to be sterilized are contained in rotatable carriers. With one side of the sealed chamber is provided a sealing means through which the carriers are charged and discharged into and out of the sealed chamber.

Growing community of inventors

Ebina, Japan

Yoshimi Terajima