JPS5927370Y2 - Easy-open house-shaped container - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a house-shaped container, and relates to a highly openable house-shaped container that can store a highly permeable liquid such as salad oil and is easy to open.

In recent years, it has become the number one container for storing and selling milk, juice, etc.
A container shaped like the one shown in the figure is generally used.
Such containers were considered completely unsuitable for storing extremely permeable liquids such as salad oil.

The reason is that if you glue the top opening tightly and strongly to increase penetration resistance, it becomes difficult to open the top opening, and conversely, if you glue the top opening loosely to make it easier to open, salad oil etc. will seep out from the minute gaps. This is because it was extremely difficult to measure the balance between the two.

As a result of various studies, the present inventor completed the present invention as one that can simultaneously achieve the mutually contradictory objectives mentioned above.

To explain one embodiment of the present invention with reference to figures, FIGS. 2 and 3 are a cross-sectional view and a developed view, respectively, showing the layer structure of the material of the high-opening house-shaped container according to the present invention. Such a container is constructed using a material consisting of six layers, from the inner side: polyethylene layer A, polyester layer B, aluminum foil layer C, polyethylene layer D, paper E, and polyethylene layer F, in order to particularly strengthen permeation resistance. are doing.

The polyester layer B imparts permeation resistance to the material, as will be described later.

Further, the aluminum foil layer C imparts barrier properties such as light barrier properties and gas barrier properties to the material, and improves the storage stability of salad oil and the like.

Moreover, the blank board for the easy-to-open house-shaped container according to the present invention is
As shown in the figure, four side plates 1 and 2 are connected in the horizontal direction.
゜3.4 and the inclined plate 6, the end plate 8, the inclined plate 6, the end plate 8 and the inclined plate 6, which are connected to each other above the side plates 1, 2, and 3.4,
Adhesive pieces 7 and 9 are connected above the end plate 8 and bottom plates 12 and 13 are connected below the side plates 1, 2 and 3.4, respectively.
, 14° 15 and the right side adhesive piece 9, the adhesive pieces 11, 10, the adhesive plate 5, the adhesive piece 16, and the adhesive pieces 11, 10, the adhesive plate 5, the adhesive piece 16, and the adhesive piece 9, which are connected to the right side of the end plate 8, the side plate 4, and the bottom plate 15, respectively. 11, 10, adhesive board 5
, the folded adhesive part R and the bottom plate 1 are connected to the right side of the adhesive piece 16.
It consists of a folded adhesive part S that is continuous at 3°14.15.

The end plate 8 is carved with a needle break line g extending from the center of the upper side to both left and right ends of the lower side, and both ends of the end plate outside of the needle break line g are engraved with the needle break line g.
The side plate 1 of the inclined plate 6 is bent outward from the center of the inner end plate to fold a part of the end plate 8 into a part of the inclined plate 6.
, 4.

Also, the bottom plate 13 below the side plates 2 and 4 to which the end plate 8 is connected,
15 is carved with a needle break line k extending from the center of the lower end to both left and right ends of the upper side, and the bottom plates 13 and 15 are connected along the needle break line k to the outer surface of the outer bottom plate drawing side and the inner bottom plate by the needle break line. Fold it so that the outer surface of the center is aligned with the bottom plate 12.
, 14 horizontally and the bottom plate 12゜13.14.15
It is constructed so that it can be folded horizontally to form the bottom.

In addition, a, l), c, d, i, h, 1 are vertical fold lines, e, f,
j and n indicate horizontal fold lines.

As shown in Figure 3, the high-opening house-shaped container of the present invention is basically the same as those used for milk cartons, etc.
The point is that folded adhesive parts R and S are provided for folding back the edges of the adhesive parts on the side and bottom parts to the outside so that the cut surfaces of the material are not exposed inside the container body at the adhesive parts on the side and bottom parts. They are just different.

Accordingly, in the present invention, a release agent is applied to the adhesive pieces 7 and 9 at the top as shown by the symbol M in Fig. 3, but in the present invention, a release agent is applied to the adhesive pieces 7 and 9, which is used for ordinary milk cartons, etc. Unlike the above, the release agent M is not applied to the entire surface of the adhesive piece 9 above the end plate 8, but the release agent M is applied to a portion approximately 3 mm wide on both sides of the vertical fold line (total approximately 6 mm width). The inner surface of the adhesive piece 9 can be relatively strongly heat-sealed to the inner surface of the adhesive piece 7 in this portion without applying any adhesive, and this is the most distinctive feature of the present invention.

The release agent used in the present invention has the following composition.

Ethyl cellulose / J・o it part silicone
0 parts by weight Ethanol iaθ parts by weight Polyethylene wax l! ; Parts by weight Lecithin 30 parts by weight Toluene ja! Part by weight Ethyl acetate 38.0 parts by weight The present invention has the above-mentioned structure, and the innermost polyethylene layer A
Polyester layer B is provided immediately outside of the holder, which hardly causes so-called pinholes during the manufacturing process, and therefore has extremely high permeability resistance, so when storing highly permeable liquids such as salad oil, etc. In order to prevent the contents from seeping into the paper E through the pinholes and causing swelling and staining, when the top of the container body is closed, a release agent is applied to the area near the vertical fold line of the adhesive piece 9 that is most difficult to adhere tightly. Since M is not coated, this part is also adhered extremely tightly, and the contents leak out from the minute gaps, and the contents can permeate and diffuse into the paper E from the cut surface of the upper end of the adhesive piece 9, staining the container body. In addition, since the part on which the release agent M is not applied is only a very small part near both sides of the vertical fold line, there is a remarkable effect that there is almost no resistance to the opening and the opening can be made extremely easily.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, with FIG. 1 being a perspective view, FIG. 2 being a sectional view showing the layer structure, and FIG. 3 being a developed view. Explanation of the symbols representing the main parts of the diagram A, D, F...
... Polyethylene layer, B ... Polyester layer, C ... Aluminum foil layer, E ... Paper, M ... Release agent, R9S ... ...Folded adhesive part, h... Vertical fold line, 7, 8... Adhesive piece.

Claims (1)

[Scope of utility model registration request] It consists of a rectangular cylindrical body, a bottom connected to the lower end of the body, and a roof-shaped top connected to the upper end of the body.
The top of the roof is made up of a pair of inclined plates connected to the upper ends of a pair of opposing side plates and a pair of end plates connected to the upper ends of the other pair of opposing side plates. The inclined plate and the end plate are connected to each other, and adhesive strips are connected to the upper ends of the inclined plate and the end plate, respectively, and the end plate has a diagonal fold line carved from the center of the upper side to both left and right ends of the lower side, The side of the gable board is bent outward from the oblique folding line with respect to the center of the gable board, and a part of the gable board is folded into a part of the sloped board, so that the sloped board is tilted with respect to the side board, and the upper part of the sloped board is folded. In a house-shaped container in which the adhesive pieces, the adhesive piece above the inclined plate, and the adhesive piece above the end plate are aligned with each other and sealed,
The house-shaped container is made of a material in which an aluminum foil layer, a polyester layer, and an inner polyethylene layer are sequentially laminated on one side of paper, and an outer polyethylene layer is laminated on the other side of the paper. A house-shaped container with high opening property, characterized in that a release agent is applied to the inner polyethylene layer surface of the adhesive piece except for the areas near both sides of the vertical fold line at the center of the adhesive piece.