Abstract: The present invention is a square bottle. In the square bottle, a body portion extending in a vertical direction is configured that a panel surface portion and a corner surface portion are disposed, a circumferential groove is formed at a center portion of the body portion in the vertical direction, a recessed portion for finger contact is disposed in a portion of the circumferential groove located on the panel surface portion, a horizontal stripe portion is provided at an upper end portion of an inner surface defining the circumferential groove, and a vertical stripe portion extending downward from the horizontal stripe portion is disposed.

Abstract: The present invention is a bottle with a handle which includes a bottle in which a mouth portion, a shoulder portion, a body portion, and a bottom portion are configured continuously in this order from top to bottom; and a handle. The body portion is provided with a mounting recess which is recessed forward and opened rearward, in a radial direction. The handle is mounted to the mounting recess. An upper peripheral groove extending continuously over an entire length in a circumferential direction is formed in a connecting portion between the shoulder portion and the body portion. A portion of the upper peripheral groove which is located at the same position in the circumferential direction as at least a part of the mounting recess is a shallow groove portion having a groove depth shallower than other portion.

Abstract: A synthetic resin container has improved formability while preventing deformation of corner walls. The synthetic resin container includes a mouth that serves as a dispensing opening for contents, a body that is continuous with the mouth via a shoulder, and a bottom that closes a lower end of the body. The body includes a pair of main walls arranged so as to face each other with a gap therebetween, a pair of side walls arranged so as to face each other with a gap therebetween, and corner walls that couple respective ends in a circumferential direction of the main walls and the side walls. Each corner wall is provided with U-shaped ribs that are formed in a substantially U-shape within a surface of the corner wall and that are concave toward an inner side in a thickness direction of the corner wall.

Abstract: A method of manufacturing a liquid container in which a liquid is stored in a storage space of the container including a mouth, a body and a bottom, the body having a lateral folding line portion being foldable when the body is flattened in a thickness direction and extending in a circumferential direction of the body, the method including a liquid blow molding step of molding a container filled full with a liquid in a storage space by placing a preform in a mold and performing liquid blow molding; and a headspace forming step of forming a headspace in which, by separating the container filled with a liquid from the container, the body is deformed in a direction in which a thickness is increased in an area of the lateral folding line portion and a volume of the storage space is increased.

Abstract: A liquid-containing container manufacturing method includes: a liquid blow molding step of, in a state in which a reversal panel formation part forms a convex surface projecting toward inside of a cavity, supplying a pressurized liquid into a preform placed inside a cavity, to mold the preform into a container including a reversal panel; and a headspace formation step of pressing the container by a press part to reverse the reversal panel, and thereafter releasing press by the press part to increase a volume of the container and thereby form a headspace.

Abstract: A method of manufacturing a liquid container in which a liquid is stored in a storage space of the container including a mouth, a body and a bottom, the body having a lateral folding line portion being foldable when the body is flattened in a thickness direction and extending in a circumferential direction of the body, the method including a liquid blow molding step of molding a container filled full with a liquid in a storage space by placing a preform in a mold and performing liquid blow molding; and a headspace forming step of forming a headspace in which, by separating the container filled with a liquid from the container, the body is deformed in a direction in which a thickness is increased in an area of the lateral folding line portion and a volume of the storage space is increased.

Abstract: A synthetic resin container including a mouth, a shoulder, a body and a bottom and forming a space for accommodating contents, in which the shoulder is provided with a pair of protruding ribs configured to be disposed opposite to each other on a front side and a rear side across a central axis line of the container and to be foldable when the shoulder is flattened; the pair of protruding ribs are each formed into a curved shape with central portions protruded toward the mouth side in a front view or a rear view; and both ends of one of the pair of protruding ribs are connected to both ends of another one of the pair of protruding rib, respectively, at intermediate positions of the shoulder.

Abstract: A liquid-containing container manufacturing method includes: a liquid blow molding step of, in a state in which a reversal panel formation part forms a convex surface projecting toward inside of a cavity, supplying a pressurized liquid into a preform placed inside a cavity, to mold the preform into a container including a reversal panel; and a headspace formation step of pressing the container by a press part to reverse the reversal panel, and thereafter releasing press by the press part to increase a volume of the container and thereby form a headspace.

Abstract: A method of manufacturing a composite container. The method includes providing a paper label, and a preform; providing a molding die equipped with a closed, cylindrical lower mold and an upper mold composed of a plurality of split-mold segments; arranging the paper label in the lower mold; arranging the preform between opened split-mold segments; moving one or both of the lower mold with the paper label and the upper mold with the preform in a direction towards each other to close the molding die; implementing blow-molding on the preform in the molding die; and opening the molding die to release the composite container.

Abstract: A synthetic resin bottle, wherein a bottom includes: an annular-shaped peripheral portion; a protruding ridge disposed radially inward from the peripheral portion and configured to serve as a ground contacting portion of the bottle by protruding downward from the peripheral portion and configured, when deformed under reduced pressure, to make the peripheral portion serve as the ground contacting portion by displaced toward an inside of the bottle (upward); and a depressed recess located radially inward from the protruding ridge and depressed toward the inside of the bottle. The peripheral portion has an outer diameter dimension less than that of a lower end portion of the trunk, or a plurality of radiately extending groove portions is arranged side by side at an equal interval in the circumferential direction in the peripheral portion.

Abstract: Provided is a bottle with a handle including a bottle in which a mouth portion, a body portion, and a bottom portion are continuously provided in this order along a direction of a bottle axis, and a handle disposed in a rear part of the bottle, wherein a first circumferential groove extending in a circumferential direction along the bottle axis is formed in a lower body portion of the body portion located between the handle and the bottom portion along the direction of the bottle axis, and the first circumferential groove is disposed over the entire region in the circumferential direction in a portion of the bottle along the circumferential direction in which the handle is located.

Abstract: A blow molding mold is adapted to be mounted to a blow molding device and having a cavity surface. The blow molding device has a pressurized liquid supply function of supplying a pressurized liquid to stretch the preform toward the cavity surface and also has a head space defining function of defining head space in the container by drawing back a part of the liquid filled into the container through a blow nozzle or by withdrawing a stretching rod from the container filled with the liquid. The cavity surface includes a bottom forming surface, a trunk forming surface, a shoulder forming surface, and a mouth forming surface, and the trunk forming surface includes a flattened portion that, in the transverse section, has a flattened shape.

Abstract: Provided is a method for manufacturing a container containing a content fluid, including: a molding step of stretching a bottomed tubular preform that is heated to a temperature at which the preform is stretchable so as to form the container by means of pressure of the content fluid injected into the preform through a mouth portion; a sealing step of sealing the content fluid by fitting a cap body to the mouth portion; and a pressurizing step of increasing an inner pressure of the container, wherein the container includes an invertible deforming portion that is freely invertible and deformable toward an inside of the container, and in the pressurizing step, the inner pressure of the container is increased by reducing a volume of the container by inverting and deforming the invertible deforming portion toward the inside of the container.

Abstract: Provided is a bottle with a handle including a bottle in which a mouth portion, a body portion, and a bottom portion are continuously provided in this order along a direction of a bottle axis, and a handle disposed in a rear part of the bottle, wherein a first circumferential groove extending in a circumferential direction along the bottle axis is formed in a lower body portion of the body portion located between the handle and the bottom portion along the direction of the bottle axis, and the first circumferential groove is disposed over the entire region in the circumferential direction in a portion of the bottle along the circumferential direction in which the handle is located.

Abstract: This disclosure relates to a synthetic resin bottle that exhibits a reduced pressure absorbing function by the bottom portion being displaced inward. A bottom portion includes: a peripheral portion having an annular shape; a protruding ridge disposed radially inward of the peripheral portion and configured to serve as a ground contacting portion of the synthetic resin bottle by protruding downward from the peripheral portion and configured, when deformed under a reduced pressure, to make the peripheral portion serve as the ground contacting portion by displaced toward an inside of the synthetic resin bottle (i.e., upward); and a depressed recess located radially inward of the protruding ridge and depressed toward the inside of the synthetic resin bottle. The peripheral portion includes a plurality of groove portions extending radiately.

Abstract: A PET preform from which a container of a desired shape can be accurately molded by liquid blow molding. A configuration is adopted where the preform has a bottomed cylinder shape provided with a mouth portion and a body portion and, when molded by liquid blow molding into a container, the body portion is stretched in an axial direction at a stretch ratio of 1.50 or more and 3.10 or less and is stretched in a radial direction at a stretch ratio of 2.26 or more and 3.70 or less.

Abstract: A preform formed from polypropylene or high density polyethylene and with which a container of a desired shape can be precisely molded by liquid blow molding. When formed of polypropylene as a closed-bottom cylinder shape having an open end section and a body section, the preform is molded into the container by stretching the body section in the axial direction by a stretch ratio of 2.25-4.34, inclusive, and in the radial direction by a stretch ratio of 1.95-5.00, inclusive. When formed of high density polyethylene as a closed-bottom cylinder shape having an open end section and a body section, the preform is molded into the container by stretching the body section in the axial direction by a stretch ratio of 1.69-2.50, inclusive, and in the radial direction by a stretch ratio of 2.26-5.07, inclusive.