A liquid paper container capable of preventing leakage of a liquid and intrusion of, for example, air into the container through a gap between a part of a corresponding one of top-portion horizontal folding creases formed in a blank sheet and a top-portion horizontal folding crease formed in a side sealing panel, which overlap with each other, top panels (11, 12) and side panels (15, 16) are respectively contiguous with upper ends of body panels through top-portion horizontal folding creases (9, 10, 13, 14). Bottom panels (21, 22) and inner panels (25, 26) are respectively contiguous with lower ends of the body panels through bottom-portion horizontal folding creases (19, 20, 23, 24). A side sealing panel (30) is contiguous with a one-side open end edge of a blank sheet (1A). A top-portion horizontal folding crease (31) and a bottom-portion horizontal folding crease (32) are formed in the side sealing panel.

The present invention relates to a sheetlike composite comprising, as mutually superposed layers, a) a carrier layer, b) a barrier layer, and c) an inner polymer layer,
wherein the sheetlike composite has a multitude of groove lines arranged and configured such that, by folding the sheetlike composite along the groove lines and joining seam areas of the sheetlike composite thereby obtaining seams, a closed container is obtainable, wherein the closed container has a roof area, wherein a first portion of the groove lines of the multitude of groove lines at least partly forms a circumference of a first part-area of the roof area, wherein the groove lines of the first portion, relative to the first part-area of the roof area, have at least partly convex curvature, wherein the first part-area of the roof area has a first length in a longitudinal direction and has a second length in a circumferential direction at right angles to the longitudinal direction, wherein a ratio of the first length to the second length is in a range from 0.2 to 2.0. The invention further relates to methods of producing a sheetlike composite, a container precursor and a closed container, and to the aforementioned method products; to a further container precursor; to a further closed container; and to a use of the sheetlike composite.

A leakproof and liquid-tight packaging box of corrugated board, which box is erected mechanically using glueing as an aid. What is essential in the invention is that the corner surfaces of the structurally strong, torsionally rigid, leakproof and liquid-tight packaging box stackable one on top of another are folded and glued to the outer surface of the vertical surface of the short side. In addition, it comprises an inward-formed cone structure of the vertical surface of the long side of the box, and a rigid and load-resistant beam structure is formed on all sides of the packaging box.

A self folding polygonal impermeable food box and a tool for its forming. The box is made from cardboard coated on its inside with PET film or foil. The box has a bottom, six lateral sides, two lateral sides and eight corner sides which are partially transparent and directed towards the inside of the box. The box is covered by a cover so that the sides of the cover rest on the outer surfaces of the lateral sides and seal the box. There is also a second variant of the box. The tool for forming the box, which is preferably made from stainless steel, has a bottom, six guides and two guides, which form the six lateral sides and the two lateral sides of the box.

A self folding polygonal impermeable food box and a tool for its forming. The box is made from cardboard coated on its inside with PET film or foil. The box has a bottom, six lateral sides, two lateral sides and eight corner sides which are partially transparent and directed towards the inside of the box. The box is covered by a cover so that the sides of the cover rest on the outer surfaces of the lateral sides and seal the box. There is also a second variant of the box. The tool for forming the box, which is preferably made from stainless steel, has a bottom, six guides and two guides, which form the six lateral sides and the two lateral sides of the box.

In one embodiment, a liquid dispensing system includes a bag, a tap, and a box. The bag includes a spout that is configured to permit the bag to be filled with a liquid. The tap is configured to be coupled to the bag. The box is configured to hold the bag. The box includes a back side and a front side opposite the back side. The front side includes art aperture for the tap. At least a portion of the aperture is located below a horizontal center line of the front side.

In one embodiment, a liquid dispensing system includes a bag, a tap, and a box. The bag includes a spout that is configured to permit the bag to be filled with a liquid. The tap is configured to be coupled to the bag. The box is configured to hold the bag. The box includes a back side and a front side opposite the back side. The front side includes art aperture for the tap. At least a portion of the aperture is located below a horizontal center line of the front side.

A leak resistant bliss-type container comprising a first blank defining a bottom wall, opposed first side walls hingedly connected to longitudinal edges of the bottom wall and extending upwardly from the bottom wall, a vertical side flange hingedly connected to each of a pair of opposing lateral edges of the first side walls, and opposing bottom flanges hingedly connected to lateral edges of the bottom wall and extending upwardly in overlapping relation to the vertical side flanges. Second and third identical end blanks are provided, each end blank defining at least an end wall secured in overlapping relation to the vertical side flanges. A corner piece is defined by a web of material, each corner piece extending between a longitudinal edge of one of the vertical side flanges and a longitudinal edge of the bottom flange to define a leak resistant corner.

A paper inner container for storage of a refilling liquid content, the paper inner container including a body (11), which includes a body front panel (7), a body right side panel (6), a body left side panel (8), and a body back panel (5). A top surface (12) includes: a top surface forming panel (14) which is continuously provided on an upper edge of the body back panel; a top surface formation assisting panel (16), which is continuously provided on an upper edge of the body front panel, and is folded up on a lower side of the top surface forming panel; and right and left side panels (19, 20), which are continuously provided on upper edges of the body right side panel and the body left side panel, and are folded up along with overlapping of the top surface forming panel and the top surface formation assisting panel.

A paper inner container for storage of a refilling liquid content, the paper inner container including a body (11), which includes a body front panel (7), a body right side panel (6), a body left side panel (8), and a body back panel (5). A top surface (12) includes: a top surface forming panel (14) which is continuously provided on an upper edge of the body back panel; a top surface formation assisting panel (16), which is continuously provided on an upper edge of the body front panel, and is folded up on a lower side of the top surface forming panel; and right and left side panels (19, 20), which are continuously provided on upper edges of the body right side panel and the body left side panel, and are folded up along with overlapping of the top surface forming panel and the top surface formation assisting panel.