JP6010877B2 - Liquid paper container - Google Patents

Description

  The present invention relates to a liquid paper container whose top is formed in a gable roof shape. The present invention relates to a paper container in which the gable angle of the gable top is made smaller than the conventional angle and the design effect is enhanced.

  As containers for milk, juice, sake, etc., paper containers called so-called gable tops, which use a laminated sheet made of paper as a main material and have the top of the container body formed into a gable roof shape, are widely distributed.

  The structure of the gable top type paper container is composed of a square cylindrical body, a gable top top folded into a gable roof formed at one opening end of the body, and a trunk of the body. And a bottom formed at the other opening end.

  Currently, paper containers for milk and juice among gable-top type paper containers are collected after use and used as recycled materials. In addition, a paper container having contents that require gas barrier properties against oxygen and water vapor is laminated with a plastic film having a transparent metal vapor deposition on a paper material, and a plastic film having an aluminum foil or aluminum vapor deposition. Paper containers laminated with plastic film with transparent metal vapor deposition are collected and used as recycled materials, but paper containers with laminated aluminum foil and plastic film vapor deposited with aluminum are collected and discarded as other paper containers The

  The configuration of the paper container is multi-layered because of the requirement to maintain the quality of the contents. Moreover, since the rigidity of the paper material is increased so that the container will not rupture even if dropped and the paper container will not be deformed, the paper container itself becomes difficult to crush when discarded after use. Yes.

  Moreover, the thing which provided the spout (plug) from the sealing property after opening and easiness of pouring has increased. Used for sake, wine, and others. However, in the case of a paper container with a cap, some contents remain in the paper container even after the contents have been poured out.

  Gable-top type paper containers are often in the shape of a square body from distribution and store-front storage, and there is no differentiation among products, and a new shape paper container is required.

  From the above, unlike the conventional container shape, a paper container that is easy to be crushed after use and has little residual liquid after pouring out is desired.

  As described above, the present invention provides a paper container that has a small amount of residual liquid after pouring out and is easily crushed at the time of disposal, and has excellent eye-catching properties that are different from conventional shapes.

According to a first aspect of the present invention, there is provided a quadrangular cylindrical body having four side plates and an adhesive margin piece connected to one side plate and connected to an adjacent side plate; A liquid paper container comprising a top formed by being folded into a gable roof formed at one open end and a bottom formed at the other open end of the trunk,
The top portion is formed from a pair of opposed roof plates that are connected to the side plate via a folding line, and another set of opposite facing planks, and each roof plate and each plank are alternately and sequentially A pair of roof plates that are connected in a ring and are opposed to each other are formed by a quadrangular inclined piece and an outer sticking piece, and a pair of facing plates that are opposite to each other are folded into pieces that are connected to the side plate. A pair of folded pieces connected to the inclined piece and connected to the inclined piece, and a pair of inner sticking pieces connected to the pair of folded pieces, and intersecting the folded piece side of the opposed rectangular inclined pieces. The angle has an angle in a range of about 48 ° , and each outer sticking piece is formed wider than each inner sticking piece so as to protrude from each inner sticking piece, and is folded with each boundary as a folding line. Fold the fold line between the piece and the folded piece inward Opposing end planks have been folded into the roof plates, and and opposing inclined piece is folded inward, outward bonded wear pieces are polymerized in each inner attaching piece, the polymerization unit top seal portion It is formed by being adhered as
The liquid paper container has a cap;
The upper end of the folded piece is in contact with the lower end of the inner sticking piece,
The inner surface of the folded piece and the inner surface of the inclined piece are bonded ,
Body size A × B is 85 mm × 85 mm, body height C is 120 mm, dimension D from the fold line connecting the side plate and the folding piece to the lower part of the top seal part is 100 mm, plug size is 26φ in diameter, The distance from the top seal part to the plug center is 25 mm,
This is a liquid paper container.

  The liquid paper container of the present invention is different from the conventional shape. The crossing angle on the folding piece side of the inclined piece forming the pair of gable roofs is made smaller than the conventional angle. It becomes a shape that is easier to fold than a conventional gable-top type paper container. Further, by heat-sealing the inside of the folded piece and the inside of the inclined piece, the remaining liquid after pouring out can be reduced.

It is explanatory drawing which shows an example of the paper container (with a stopper) of this invention. It is explanatory drawing which shows an example of the paper container (with a stopper) of this invention. It is explanatory drawing which shows an example of the paper container (with a stopper) of this invention. It is explanatory drawing which shows the reference example 1 of the paper container (without a stopper) of this invention. It is explanatory drawing which shows the reference example 1 of the paper container (without a stopper) of this invention. It is explanatory drawing which shows Example 1 of the paper container (with a stopper) of this invention. It is explanatory drawing which shows Example 1 of the paper container (with a stopper) of this invention. It is explanatory drawing which shows Example 2 of the paper container (with a stopper) of this invention. It is explanatory drawing which shows Example 3 of the paper container (with a stopper) of this invention. It is explanatory drawing which shows Example 3 of the paper container (with a stopper) of this invention. It is explanatory drawing which shows Example 4 of the paper container (with a stopper) of this invention. It is explanatory drawing which shows Example 5 of the paper container (with a stopper) of this invention. It is explanatory drawing which shows Example 5 of the paper container (with a stopper) of this invention. It is expansion | deployment explanatory drawing which shows an example of the conventional gable top type paper container. It is a perspective view which shows an example of the conventional gable top type paper container. It is a perspective view which shows an example of the conventional gable top type paper container (with a stopper). It is explanatory drawing which shows an example of the conventional gable top type paper container (with a stopper).

  Hereinafter, an embodiment of the present invention will be described in detail.

  In order to make a gable top type paper container, a blank 10 is first made. As shown in FIGS. 14 and 15, the top portion 3 is composed of a pair of facing roof plates 11 and 11 connected to four side plates 18 via a fold line 20, and other opposite facing plates 12 and 12. And the roof plates 11 and 11 and the end plates 12 and 12 are alternately connected to each other in an annular shape, and the pair of facing roof plates 11 and 11 are formed as square inclined pieces 13 and 13. A pair of opposite face plates 12, 12 formed of the outer sticking pieces 14, 14 are connected to the side plates 18, and the inclined pieces 13 are connected to the folded pieces 15, 15. , 13 and a pair of folded pieces 16, 16 connected to the folded pieces 16, 16, and a pair of inner bonded pieces 17, 17 connected to the folded pieces 16, 16. Each inner sticking piece to protrude from the sticking pieces 17, 17. Wider form. With each boundary as a fold line, fold lines 21 between the fold pieces 15 and 15 and the folded pieces 16 and 16 are folded inward, and the opposite end plates 12 and 12 are folded between the roof plates 11 and 11, and relative to each other. The inner inclined pieces 13 and 13 are folded inward at the folding line 20, the inner adhesive pieces 17 and 17 are polymerized by the outer adhesive pieces 14 and 14, and this overlapped part is adhered as the top seal part 5. It is formed.

  Assembling is performed through the glue provided on the glue margin piece 19. A sleeve having a quadrangular cylindrical body made of four side plates, an opening for inserting a content portion into one of the body portions, and an opening for forming a bottom portion at the other of the body portions is created.

  The created sleeve is raised, bottom heated, and bottom molded. Then, after inserting the spigot, it is welded, filled, molded into a roof shape, top-sealed, and a paper container with the contents inserted is made.

  FIG. 15 is an explanatory view showing an example of a conventional 1000 ml gable top type paper container. FIG. 16 is an explanatory view showing an example of a conventional paper container with a stopper of 900 ml for a gable top type. 15 and 16 are perspective views. The paper container is composed of a rectangular body 2 and a top 3 and a bottom 4 of a gable roof.

  FIG. 17 is an explanatory view showing an example of a conventional paper container with a gable top-type cap. A crossing angle 9 (hereinafter referred to as a gable angle) of a pair of inclined pieces forming a gable roof is shown.

  FIG. 1 is an explanatory view showing an example of the paper container of the present invention. The paper container 1 of the present invention is a paper container in which the gable angle 9 ′ is in the range of 20 ° to 70 °. Unlike a conventional similar shape, a paper container having a great design effect and excellent eye catching property can be produced. That is, the position of the fold line 21 connecting the folded pieces 15 and 15 and the folded pieces 16 and 16 shown in FIG. 14 may be appropriately determined so that the gable angle 9 ′ is 20 ° to 70 °.

  2 and 3 show the positions of the outer dimensions in the embodiment of the paper container of the present invention. 2 is a perspective view, and FIG. 3 is a side view. A and B are the dimensions of the body part, C is the height of the body part, and D is the dimension from the fold line 20 connecting the side plate 18 and the folding piece 15 to the lower part of the top seal 5.

  As the configuration of the paper material used in the present invention, the configuration conventionally used for paper containers can be used. For example, from the surface side, polyethylene / paper / polyethylene, polyethylene / paper / polyethylene / aluminum foil / polyester film / polyethylene, polyethylene / paper / polyethylene / aluminum-deposited polyester film / polyethylene, polyethylene / paper / polyethylene / transparent-deposited polyester film / Polyethylene can be used. It can be used by appropriately determining the quality required from the contents, distribution, and storage environment at the store.

The paper used in the present invention, paper having a basis weight of 250g ^{/ m 2} ~400g ^/ m 2 can be used. Further, the lamination of paper and polyethylene can be performed using an extrusion laminating method or a laminating method. The thickness of polyethylene is 20 μm to 80 μm. What is necessary is just to determine suitably from the required quality of the contents.

  The transparent vapor-deposited polyester film or aluminum vapor-deposited polyester film can be bonded using an laminating machine with an adhesive. What is necessary is just to determine the thickness of these films suitably.

  By using an offset printing machine, a gravure printing machine or the like on the surface of these material structures, a desired pattern or character can be printed.

Hereinafter, specific examples of the present invention will be described .

<Reference Example 1>
4 and 5 are explanatory views showing Reference Example 1 of the paper container of the present invention. 4 is a front view, and FIG. 5 is a side view. Reference Example 1 is a paper container for 1000 ml with 70 mm square and no plug. A paper container with A = 70 mm, B = 70 mm, C = 170 mm, and D = 130 mm, and the Goebel angle 9 ′ is about 30 °. The dimensions of the current paper container are A = 70 mm, B = 70 mm, C = 200 mm, D = 25 mm, and the Goebel angle 9 is about 110 °. The broken line shown in the figure indicates a fold line connecting the folded piece and the folded piece of the end plate inside the paper container.

6 and 7 are explanatory views showing Example 1 of the paper container (with a stopper) of the present invention. 6 shows a front view, and FIG. 7 shows a side view. Example 1 is an 85 mm square paper container for 900 ml. A = 85 mm, B = 85 mm, C = 120 mm. With a paper container of D = 100 mm, the gobber angle 9 ′ is about 48 °. The plug size is 26 mm in diameter, and the distance from the top seal part to the plug center is 25 mm. The dimensions of the conventional container are A = 85 mm, B = 85 mm, C = 140 mm, D = 25 mm, and the Goebel angle 9 is about 120 °. In addition, by setting D of the paper container of Example 1 to 60 mm, the Goebel angle can be set to about 70 °. Similarly, a design effect can be provided.

FIG. 8 is an explanatory view showing Example 2 of the paper container (with a stopper) of the present invention. The inner surfaces of the two opposed pairs of folded pieces and the inner surfaces of the inclined surfaces of Example 1 are sealed by heat. The inner surface of the paper container is provided with a heat-sealable resin, that is, a polyethylene resin layer, for protecting contents and assembling the paper container. By sealing the polyethylene resin layer surfaces by heat-sealing and providing a seal portion, it is possible to reduce the residual liquid after the content has been poured out. That is, the contents are prevented from accumulating between the folded surface and the inclined surface.

9 and 10 are explanatory views showing Example 3 of the paper container (with a stopper) of the present invention. 9 is a perspective view, and FIG. 10 is a side view. A paper container of A = 110 mm, B = 65 mm, C = 120 mm, and D = 100 mm, and the gobber angle 9 ′ is about 40 °. It is a 900 ml paper container.

FIG. 11 is an explanatory view showing Example 4 of the paper container (with a stopper) of the present invention. This is a paper container having a diameter of 60φ as a cap size and a distance of 50 mm from the top seal part to the center of the plug in the container having the shape of Example 1 . By expanding the inclined surface, the plug size can be increased. It is effective for contents such as containing pulp and ingredients.

12 and 13 are explanatory views showing Example 5 of the paper container (with a stopper) of the present invention. The paper container shown here is a paper container having an irregular shape without a conventional rectangular body. 12 shows a front view, and FIG. 13 shows a side view. A paper container with A = 110 mm, B = 65 mm, C = 0 mm, and D = 240 mm, and the Goebel angle 9 ′ is about 20 °. It is a paper container for 500 ml. It is a paper container with a great design effect, while the body is often rectangular.

  Moreover, the residual liquid amount after pouring out the contents was confirmed using the paper container of this invention.

The composition of the paper material used is polyethylene 20 μm / paper 350 (g / m ² ) / polyethylene 15 μm / aluminum foil 9 μm / polyester film 12 μm / polyethylene 60 μm. The paper container of Example 1 and Example 2 was created in the process of creating a normal paper container. The plugs were attached to the paper containers of Example 1 and Example 2 at a plug size diameter of 26φ and a distance of 25 mm from the top seal part to the plug center. In addition, each of the paper containers of Example 1 and Example 2 was filled with 900 ml of water.

<Comparative Example 1>
Using the same paper material as in Example 6 , a conventional gable top type paper container was prepared. The sizes were A = 85 mm, B = 85 mm, C = 140 mm, and D = 25 mm. The plug was attached to a plug size diameter of 26φ and a distance of 25 mm from the top seal portion to the plug center. A paper container to be compared with Example 7 was obtained. This comparative container was filled with 900 ml of water in the same manner as in Example 7.

<Comparison result>
Table 1 shows. The amount of liquid remaining after the water of the contents was poured out was measured. The average value of N number 4 is shown.

表１から、実施例２の紙容器、即ち妻板の折り返し部の内面と傾斜部の内面が熱シールされた紙容器の残量が少なかった。また実施例１の容器でも現状より少ない。これはゲーブル角度を狭くしたことにより、内容物が注ぎ口から出易くなった効果を示している。

From Table 1, the remaining amount of the paper container of Example 2 , that is, the paper container in which the inner surface of the folded portion of the face plate and the inner surface of the inclined portion were heat-sealed was small. Also, the container of Example 1 is less than the current state. This shows the effect that the contents easily come out of the spout by narrowing the gable angle.

  By making the gable angle 9 'in the range of 20 ° to 70 °, the paper container of the present invention becomes a paper container having a high design effect that has not been achieved in the past, and the commercial value of the merchandise sold can be improved. Further, when discarded after use, the paper container is more easily reduced than conventional paper containers, that is, easily crushed.

  The paper container of the present invention becomes an irregular-shaped gable top type paper container by narrowing the gable angle as compared with the conventional gable top type paper container. The eye-catching properties at store displays can lead to sales effects for consumers.

1: Paper container 2 of the present invention 2: trunk part 3: top part 4: bottom part 5: top seal part 6: plug part (26φ)
7: Mouth part (60φ)
8: Heat seal part 9: Gable angle 9 ': Gable angle (paper container of the present invention)
10: Blank 11: Roof plate 12: Twill plate 13: Inclined piece 14: Outer sticking plate 15: Folding piece 16: Folding piece 17: Inner sticking piece 18: Side plate 19: Paste piece 20: Folding line 21: Folding line 22: Conventional paper container

Claims (1)

A quadrangular cylindrical body having four side plates and a glue piece connected to one of the side plates and connected to an adjacent side plate, and a gable formed on one end of the body. A liquid paper container comprising a top part folded and closed in a roof shape, and a bottom part formed at the other open end of the trunk part,
The top portion is formed from a pair of opposed roof plates that are connected to the side plate via a folding line, and another set of opposite facing planks, and each roof plate and each plank are alternately and sequentially A pair of roof plates that are connected in a ring and are opposed to each other are formed by a quadrangular inclined piece and an outer sticking piece, and a pair of facing plates that are opposite to each other are folded into pieces that are connected to the side plate. A pair of folded pieces connected to the inclined piece and connected to the inclined piece, and a pair of inner sticking pieces connected to the pair of folded pieces, and intersecting the folded piece side of the opposed rectangular inclined pieces. The angle has an angle of about 48 ° , and each outer sticking piece is formed wider than each inner sticking piece so as to protrude from each inner sticking piece, with each boundary as a folding line, Facing each other so that the fold line with the folded piece is folded inward That end planks are are folded roof plates, and opposing inclined piece is folded inward, outward bonded wear pieces are polymerized in each inner attaching piece, the polymerization unit as a top seal portion It is formed by being bonded,
The liquid paper container has a cap;
The upper end of the folded piece is in contact with the lower end of the inner sticking piece,
The inner surface of the folded piece and the inner surface of the inclined piece are bonded ,
Body size A × B is 85 mm × 85 mm, body height C is 120 mm, dimension D from the fold line connecting the side plate and the folding piece to the lower part of the top seal part is 100 mm, plug size is 26φ in diameter, The distance from the top seal part to the plug center is 25 mm,
A liquid paper container characterized by that.

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