JP2006123936A - Paper-made container for liquid with bung - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper-made container for a liquid with a bung the whole of which including a top part and a bottom part can be easily folded flat by hands to reduce its volume when it is abandoned. <P>SOLUTION: The paper-made container for the liquid with the bung is made into a box by using a sheet of a blank 10 comprising a laminated material having at least a base material layer composed of a paper and thermoplastic resin layers on both sides, and has a bottom part, a back face board 11 of a body part, a front face board 13 of the body part, two side face boards 12 and 14 of the body part, and a top part 40 with the bung 44. In the paper-made container for the liquid with the bung, auxiliary ruled lines for folding whose both ends are made into Y shapes are provided on the front face board of the body part and on the back face board of the body part, and an auxiliary ruled line for folding the top part which extends from an intersection of the ruled lines on the top part side of the front face board of the body part to an intersection of the ruled lines on the top part side of the back face board of the body part through either one of the side face boards of the body part, and another ruled line for folding the bottom part which extends from an intersection of the ruled lines on the bottom part side of the front face board of the body part to an intersection of the ruled lines on the bottom part side of the back face board of the body part through either one of the side face boards of the body part, are provided. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a liquid paper container with a stopper that can be easily folded and reduced in volume at the time of disposal.

Various shapes having a spout for pouring at the top, such as gobeltop-type or flat-top type liquid paper containers, are used as containers for fruit juices and various alcoholic beverages. The main parts of these liquid paper containers Is mainly composed of (outside) thermoplastic resin layer / paper layer (basis weight 350-400 g / m ² ) / adhesive resin layer / gas barrier layer / film layer / adhesive layer / thermoplastic resin layer (wetted side) Made of laminated material. Since the paperboard used for the paper layer is made of long fibers and is of very good quality, almost all of them have been recycled recently in order to build a recycling society. It is necessary to reduce the volume when it is discarded after use for recycling, but it is difficult to easily reduce the volume by hand, which is very troublesome. A liquid paper container with a stopper which has improved these problems has been proposed (see, for example, Patent Document 1).
Japanese Utility Model Publication No. 3-111925

  However, the proposed liquid paper container with a stopper has a drawback that the whole including the top portion and the bottom portion cannot be folded flat.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a liquid paper container with a stopper that can be easily folded by hand to reduce the volume including the top part and the bottom part when discarded.

  The invention according to claim 1 of the present invention is manufactured by using at least one blank made of a laminated material having a base material layer made of paper and a thermoplastic resin layer on both sides, and a bottom portion and a trunk back plate. A top surface portion that has a body front plate, two body side plates, and a slant seal portion of a predetermined width provided at the upper end is inclined downward from the body back plate side to the body front plate side Folded to one side of the body through a ruled line, and the triangular ears formed at both ends are folded downward to the side of the body side plate on both sides through the ruled line, and the penetration provided on the body front plate side of the top surface A liquid paper container with a cap having a top portion formed by fusing a plug into a hole, and a ruled line extending obliquely downward from both ends of the upper side to the trunk front plate and the trunk rear plate Extends in a straight line from the intersection to a predetermined length, and further from the intersection of the ruled line at the tip. It has a shape that is divided and extends to both ends of the lower side, and an auxiliary ruled line is provided to fold the two ruled line intersections outward, and either one from the ruled line intersection on the top part side of the trunk front plate It extends to the ruled line intersection on the top part side of the trunk back plate via the trunk side plate, and either one of the auxiliary ruled line for folding the top part and the ruled line intersection on the bottom part side of the trunk front plate. A liquid paper with a plug, which extends through the trunk side face plate to the ruled line intersection on the bottom portion side of the trunk rear plate and is provided with auxiliary ruled lines for folding the bottom portion It is a container.

The liquid paper container of the present invention is manufactured using at least a blank made of a laminated material having a base material layer made of paper and a thermoplastic resin layer on both sides, and includes a bottom portion, a trunk back plate, and a trunk portion. It has a front plate, two body side plates, and a palm seal part with a predetermined width provided at the upper end on one side of the top surface portion that is inclined downward from the body rear plate side to the body front plate side. Bends through the ruled lines, and the triangular ears formed at both ends are bent down to the side of the body side plate on both sides through the ruled lines, and the holes are opened to the through holes provided on the body front plate side of the top surface. A liquid paper container with a cap having a top portion formed by fusing a stopper, which extends from an intersection of ruled lines extending obliquely downward from both ends of the upper side to the body front plate and the body rear plate. It extends in a straight line in the direction with a predetermined length and is further divided into two directions from the intersection of the ruled line at the tip. In the shape extending to both ends of the lower side, an auxiliary ruled line is provided for folding the two ruled line intersections outward, and either one of the ruled line intersections on the top part side of the trunk front plate It extends to the ruled line intersection on the top side of the trunk back plate via the trunk side plate, and either the auxiliary ruled line for folding the top part or the ruled line intersection on the bottom side of the trunk front plate It extends to the ruled line intersection on the bottom part side of the trunk part back plate via the part side plate, and it is made up of auxiliary ruled lines for folding the bottom part, so each via the auxiliary ruled line, When discarding, the body front plate and the body rear plate can be easily folded from the middle in the height direction, and the top and bottom portions can be folded flat to reduce the volume.

  The liquid paper container with a stopper of the present invention will be described below along the embodiment. FIG. 2 is a development view showing one embodiment of a blank used for the liquid paper container with a stopper of the present invention. The blank (10) has a trunk side plate (12), a trunk side plate (12), and a trunk. The front part plate (13), the side part plate (14), and the adhesive part (15) are connected to each other via ruled lines (a, b, c, d). A top surface forming plate (16) and a palm seal portion forming plate (25) are connected to the upper side of the body side plate (12) via ruled lines (e, f). , F), the ear forming plate (19, 20, 21) and the palm seal forming plate (26) having a ruled line (h) in the center are connected to the upper side of the trunk front plate (13). Is formed by connecting a top surface forming plate (17) and a joint seal forming plate (27) each having a through hole (30) through ruled lines (e, f), On the upper side of the side plate (14), there are ear forming plates (22, 23, 24) via ruled lines (e, g, f), respectively, and a joint seal forming plate (28) having a ruled line (h) in the center. The top surface portion forming plate (18) and the palm seal portion forming plate (29) are connected to the upper side of the body portion adhesive plate (15) via ruled lines (e, f), respectively. 11), the body side plate (12), the body front plate (13), the body side plate (14), and the lower side of the body adhesive plate (15) are respectively provided with bottom portions (50) via predetermined ruled lines. The body front plate (13) is provided with auxiliary ruled lines (j) for folding with both ends being Y-shaped, and the body rear plate (13). 11) is provided with a folding auxiliary ruled line (i) whose ends are Y-shaped, and the auxiliary ruled line (j) has a ruled line intersection (x). A straight folding auxiliary ruled line (m) extending diagonally upward to the end of the trunk part adhesive plate (15) is provided, and the trunk part adhesive plate horizontally extends from the ruled line intersection (y) of the auxiliary ruled line (j) (15) is provided with a straight folding auxiliary ruled line (n) extending to the end, and the trunk back plate (11) is provided with the auxiliary ruled line (m) and the auxiliary ruled line (n), respectively. Folding auxiliary ruled lines (m ′, n ′) are provided at corresponding positions, and the body part adhesive plate (15) has two auxiliary lines for folding at positions corresponding to a part of the auxiliary ruled lines (i). A ruled line (i ′) is provided. An auxiliary ruled line connecting the ruled line intersection (x) and the ruled line intersection (x ′), and an auxiliary ruled line connecting the ruled line intersection (y) and the ruled line intersection (y ′) may be provided. The auxiliary ruled lines (i, i ', j) are respectively protruded outward from the ruled line intersections (x', y ') and the ruled line intersections (x, y) so that the trunk back plate (11) and the trunk positive The face plate (13) is provided for folding from the center, and the auxiliary ruled line (m, m ') is provided for folding the top part (40) flatly, and the auxiliary ruled line (n, n') Is provided to fold the bottom portion (50) flat.

  As described above, by providing the auxiliary ruled lines (i, i ', j, m, m', n, n '), the liquid paper container with plugs can be folded flatly through the respective auxiliary ruled lines. Is possible.

  FIG. 1 is a perspective view showing an embodiment of a liquid paper container with a stopper according to the present invention, which is boxed using the blank (10), and includes a bottom portion (50) and a trunk back plate (11). The body side plate (12, 14), the body front plate (13), and the palm seal part (43) having a predetermined width provided at the upper end from the body back plate (11) side to the body front plate (13) side Folded to the top surface (41) side inclined downwards through a ruled line, triangular ears formed at both ends (only the ear (42) formed at one end is shown in the figure) The top portion (40) is formed by bending downward to the side of the body side plate via a ruled line, and further fusing a stopper (44) to a through hole (not shown) provided in the top surface portion (41). ), And extend to the trunk back plate (11) and the trunk front plate (13) obliquely downward from both ends of the upper side. It extends in a straight line from the intersecting ruled line intersection (x ', x) to a predetermined length, and further divides into two directions from the ruled line intersection (y', y) at the tip to both ends of each lower side. And the auxiliary ruled line (i, j) having both ends in a Y shape, and passes through the trunk side plate (14) from the ruled line intersection (x) of the trunk front plate (13). And has an auxiliary ruled line (m) and an auxiliary ruled line (m ′) extending to the ruled line intersection (x ′) of the trunk back plate (11), and the trunk side from the ruled line intersection (y) of the trunk front panel (13) An auxiliary ruled line (n) and an auxiliary ruled line (n ′) extending to the ruled line intersection (y ′) of the trunk back plate (11) via the face plate (14) are provided.

  An embodiment of the method for folding a cap-equipped liquid paper container of the present invention will be described. First, after expanding the ears at both ends of the top portion (40) in the lateral direction, the trunk back plate (11) and Auxiliary ruled lines (i, j) provided on the body front plate (13) are Y-shaped at both ends, with the ruled line intersection points (x ', y') and the ruled line intersection points (x, y) on the outside. Fold out from the middle in the height direction, then fold the top part (40) with the ears of both ends widened in the lateral direction to one side via the auxiliary ruled lines (m, m '), and then the bottom part ( 50) is also folded to one side via the auxiliary ruled lines (n, n '), and the whole is folded into a flat state. By folding as described above, the volume can be reduced without being bulky. When discarding, remove the stopper after removing it.

  FIG. 3 is a side sectional view showing an embodiment of a laminated material used for the blank of the liquid paper container of the present invention. The laminated material (60) is composed of a plastic resin layer (67) and a paper layer (in order of the thickness direction). 61), an adhesive resin layer (62), a gas barrier layer (63), a plastic film layer (64), an adhesive layer (65), and a thermoplastic resin layer (66) are laminated.

As the paper layer (61), a paperboard having a basis weight of 350 to 450 g / m ² is generally used.

  The adhesive resin layer (62) includes a polyethylene resin, an ethylene / vinyl acetate copolymer resin, an ethylene / ethyl acrylate copolymer resin, an ethylene / acrylic acid copolymer resin, an ethylene / methacrylic acid copolymer resin, and an ionomer. Any resin such as a resin is used.

  The gas barrier layer (63) is made of an aluminum vapor deposited thin film, an inorganic oxide vapor deposited thin film such as aluminum oxide or silicon oxide, or an aluminum foil.

  The plastic film layer (64) may be a biaxially stretched polypropylene film having a thickness of 20 to 30 μm, a biaxially stretched nylon film having a thickness of 15 to 25 μm, a biaxially stretched polyester film having a thickness of 6 to 12 μm, or the like. More preferably, it is a biaxially stretched polyester film.

The adhesive layer (65) is made of a polyurethane-based adhesive, and usually a two-component mixed type adhesive in which a main agent having a hydroxyl group and a curing agent having an isocyanate group are mixed and used. As the lamination method, a dry lamination method is used, and the coating amount is preferably 1 to 5 g / m ² (dry state).

  The thermoplastic resin layers (66, 67) are made of a polyolefin resin, and generally, a low density polyethylene resin or a linear low density polyethylene resin is used. A thickness of 10 to 20 μm is often used, and lamination is carried out by a known melt extrusion lamination method.

It is a perspective view which shows one Embodiment of the liquid paper container with a stopper of this invention. It is an expanded view which shows one Embodiment of the blank used for the liquid paper container with a stopper of this invention. It is a sectional side view which shows one Embodiment of the laminated material used for the blank of the liquid paper container with a stopper of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Blank 11 ... trunk | drum back plate 12 ... trunk | drum side plate 13 ... trunk | drum front plate 14 ... trunk | drum side plate 15 ... trunk | drum adhesive plates 16, 17, 18 ... top | upper surface part formation board 19,20,21,22 , 23, 24... Ear part forming plates 25, 26, 27, 28, 29..., Palm seal part forming plate 30 .. through hole 40 ... top part 41 ... top surface part 42 ... ear part 43 ... joint seal part 44 ... plug 50 ... bottom part 60 ... laminate material 61 ... paper layer 62 ... adhesive resin layer 63 ... gas barrier layer 64 ... plastic film layer 65 ... adhesive resin layer 66, 67 ... thermoplastic resin layers a, b, c, d, e, f, g, h ... ruled lines i, i ', j, m, m', n, n '... auxiliary ruled lines x, x', y, y '... ruled line intersections

Claims (1)

  At least, it is boxed using a single blank made of a laminated material having a base material layer made of paper and a thermoplastic resin layer on both sides, and a bottom portion, a trunk back plate, a trunk front plate, and two barrels A side seal plate with a predetermined width provided at the upper end is bent via a ruled line to one side of the top surface portion that is inclined downward from the trunk back plate side to the trunk front plate side. Each of the triangular ears formed on the top is bent downward to the side of the body side plate on both sides via a ruled line, and a plug is fused to a through hole provided on the side of the body front plate of the top surface. A liquid paper container with a cap having a top portion, which has a predetermined length in a straight line downward from a ruled line intersection extending obliquely downward from both ends of the upper side to the body front plate and the body rear plate. Extend from the intersection of the ruled line at the tip to two ends and extend to both ends of the lower side The auxiliary ruled line for folding the two ruled line intersections to the outside is provided, and from the ruled line intersection on the top side of the trunk front plate, via either one of the trunk side plates It extends to the ruled line intersection on the top part side of the trunk back plate, and passes through one of the trunk side panels from the auxiliary ruled line for folding the top part and the ruled line intersection on the bottom part side of the trunk front plate A liquid paper container with a cap, characterized in that it is extended to a ruled line intersection on the bottom part side of the trunk part back plate, and is provided with an auxiliary ruled line for folding the bottom part.

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