A container for containing a cold fluid. The container includes a sidewall construct that includes an inner sidewall extending at least partially around an interior of the container, an outer sleeve attached to the inner sidewall, and a cavity defined between the inner sidewall and the outer sleeve. The container also includes a closed bottom defining a bottom of the interior of the container, and insulating features that include the cavity and a plurality of annular bands, each annular band of the plurality of annular bands includes a spacer that extends in the cavity from the inner sidewall to the outer sleeve. Adjacent bands define a respective pocket of a plurality of pockets in the cavity such that the insulating features maintain a desired temperature of the cold fluid.

A paper container package is provided, including: a paper layer; two plastic layers disposed on two sides of the paper layer; wherein the two plastic layers and the paper layer define at least one window which is light-penetrable in a thickness direction of the paper layer. A method for manufacturing a paper container package is provided, including steps of: preparing a paper material; partially hollowing out a part of the paper material; disposing a plastic coating on an inner side of the paper material; disposing a plastic layer on an outer side of the paper material, to form a package material; cutting the package material to form at least one paper container package; wherein the part of the paper material which is partially hollowed out, the plastic layer and the plastic coating at least partially overlap in a thickness direction of the package material.

A method for manufacturing a paperboard bottle and spiral-wound paperboard bottle. The bottle has a tubular body portion, a shoulder and neck portion having a circular cross-section narrowing from the body portion to a circular mouth. The paperboard bottle is a liquid packaging board having thermoplastic polymer coating on both sides. The method includes cutting a planar elongated blank from a packaging board sheet. Protecting exposed cut raw edge of the first longitudinal edge against absorption of liquid. Securing the first end of the blank to a rotatable mandrel having a rotation axis (x) and an outer shape corresponding to the shape of the bottle. Rotating the mandrel to wind the blank spirally onto the mandrel, so that the longitudinal edges overlap applying heat-sealing energy and pressure, onto the overlapping longitudinal edges to form a bottle with hermetically sealed spiral seam and removing the mandrel from inside the bottle.

An apparatus for forming an upper edge of a paperboard container includes a pocket including a shell having a cavity with a mouth configured to receive the container along an axis such that the rim extends beyond the mouth. A workstation includes a forming member having a first forming surface which is actuatable toward the axis from a retracted position spaced from the rim to an extended position lying adjacent an upper end of the rim, and a forming segment having a second forming surface which is actuatable along the axis and the forming member in response to axial movement thereof such that the second forming surface is positioned spaced from a lower end of the rim. The second forming surface is actuatable along the axis towards the first forming surface to form the rim therebetween.

A method of manufacturing a coated paperboard container includes: providing a coated paperboard bottom blank, the coated paperboard bottom blank comprising a paperboard substrate and a first barrier coating layer on a first outermost surface of the paperboard substrate; heating the coated paperboard bottom blank; shaping the heated coated paperboard bottom blank, thereby forming a peripheral skirt portion about a periphery of a bottom wall portion of the coated paperboard bottom blank; and sealing a coated paperboard sidewall to the first barrier coating layer of the peripheral skirt portion.

A cylindrical punch head, for shaping a paperboard bottom blank to shape a peripheral skirt portion about a periphery of the paperboard bottom blank, includes a punch face extending in a radial direction about an axis of the punch head, a punch sidewall extending in the axial direction of the punch head about a periphery of the punch face, and a border of the punch face and the punch sidewall. The border may be stepped or beveled. The border may include a plurality of edges extending around the punch face.

A paper-based composite container for an off-gassing product includes a paperboard can body having a substantially gas-impervious liner attached to an inner surface thereof, and a pair of substantially paper-based end closures attached to the opposite ends of the can body, each end closure defining a generally cylindrical sealing panel in contact with an inner surface of the can body. Heat-sealable materials are disposed on opposing surfaces of the sealing panel and can body. The sealing panels of the end closures are attached to the can body by heat seals. The heat seal for at least one of the end closures is discontinuous such that at least one vent channel extends through the heat seal to establish fluid communication between an interior of the container and the environment outside the container. The at least one vent channel is operable to vent excess gas pressure from the interior of the container.

A container with a deep recessed bottom end construction is provided. The container includes an inner receptacle having a sidewall and a bottom wall defining an interior volume within the receptacle. The container further includes an outer sleeve wrapped around the inner receptacle with a lower end extending below the lower edge of the receptacle to form a deep bottom recess within a lower portion of the container. The lower end of the receptacle sidewall has a taper angle that is different from a taper angle of an upper portion of the sidewall. The lower end of the receptacle sidewall may engage or contact the inner surface of the outer sleeve. The outer sleeve may include reverse bend and/or a second bottom wall onto which a lower end of the receptacle may sit.

A body portion (120A) that is a cylindrical body has one end portion, such as a lower end portion or the body portion (120A) or a first part (126) of a body portion (120), that is folded back inwardly. The body portion (120A) has at least one planar-shaped flat section, such as a second flat section (122) or a fourth flat section (124). A notch, such as a notch (K1) or a notch (K2), is provided at one end, such as a lower end, of the flat section. The one end portion includes a portion provided with the notch, such as by providing the notch (K1) or (K2) at a lower end of the lower end portion of the body portion (120A) or at a distal end of the first part (126A) of the body portion (120).

An apparatus forms boxes with curved corners from a die-cut sheet. A forming matrix delimits a forming cavity by guides counterposed in pairs along two orthogonal axes. The guides define a die-cut sheet support plane. A forming head inserts inside the cavity to push the die-cut sheet to form a box. Vacuum gripping devices are arranged outside the cavity in opposite positions along the second axis and each grip from underneath the die-cut sheet to hold it on the support. Pusher devices are arranged outside and near one of the corners of the cavity. Each pusher device raises one side flap of the die-cut sheet from the support plane. An electronic control unit operates the main gripping devices, pusher devices and forming head according to the following sequence: actuating the gripping devices; actuating the pushers; deactivating the gripping devices; and inserting the forming head in the forming cavity.