JPH0739787Y2 - Liquid storage container - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a liquid storage container in which a spout is formed only by peeling a release sheet and liquid dripping can be prevented.

[Prior art]

2. Description of the Related Art A spout plug that is attached to a spout portion of a paper container or the like that stores a liquid such as liquor or juice has been conventionally known. For example, 9th
As shown in the figure, on the shoulder of the container A, a flange D for sealing
A spout B having a plug is attached, and an inner plug C for opening is fitted inside the spout. When the inner plug C is pushed, a film (not shown) attached to the spout of the container A (not shown). The structure that allows the liquid to be poured out by breaking the opening
It is described in Japanese Patent No. 37828. In the container, the cap E is fitted to the spout of the spout body B during storage.

However, such a spout plug is composed of a spout body B and three members, an inner plug C for opening and a cap E, which are slidably provided inside the spout of the spout body. Therefore, there is a drawback that the structure is complicated and the manufacturing cost is high.

Also, the structure in which the spout is sealed with two films is easy to manufacture, but when the pouring is opened, the spout only opens in the container body, so it is difficult to pour the content liquid, and It has the drawback that it easily spills on the wall of the container.

[Problems to be solved]

An object of the present invention is to provide a liquid storage container having a simple structure, in which a spout is formed only by peeling a release sheet, and a spout does not cause dripping.

[Means for solving problems]

The above-mentioned problem is a container having a bottom surface, a side wall connected to the bottom surface, and a roof part connected to the other end of the side wall, and a pouring opening formed by cutting out a part of the roof part A spout forming film having a cut or a small hole for cutting in an area smaller than the opening and having an elongation percentage of 5% or more, wherein the cut or the hole is located inside the spout opening. A film for forming a spout formed by adhering to the inner wall, the lower end of the spout opening being below the ridgeline of the roof of the container
A spouting auxiliary film formed by sticking to the outer surface of the roof of the container so as to project 10 mm, a release sheet covering the pouring opening and the spouting auxiliary film, and peeling the release sheet from the spout forming film. While sticking to the spout forming film so that the strength is 0.7 to 4 kg / 15 mm, make the portion of the spout auxiliary film protruding from the ridge line of the roof part closely adhere to the side wall of the container connected to the ridge line of the roof part. A liquid storage container comprising a release sheet, wherein the release sheet is peeled off so that a part of the spout formation film projects outside the spout opening to form a spout. It has been solved by using a container for use.

The pouring opening of the present invention is provided on the roof of the container,
It is recommended to install it on the roof with a slope of 20 to 50 °.

In the present invention, the spout forming film is attached to the inner surface of the container to cover the opening. At this time, the film for forming a spout should be provided with a cut or a similar small hole for cutting in an area smaller than the opening, and the cut or the hole should be located inside the opening. Attach the spout forming film to the inner wall of the container. The cuts and holes are
It is preferable to form it in a U shape or a V shape, and it is preferable to provide the cuts and holes so that the upper portion of the release sheet and the spout forming film remain adhered when peeled together with the release sheet. This is because it is suitable to cover the spout again with the release sheet after forming the spout by peeling. Further, in the present invention, it is preferable that a space between the lower end portion (the end portion close to the peeling direction) of the opening provided in the container and the cut or hole is 3 mm or more, preferably about 3 to 20 mm. 3-20 mm, more preferably 3-10 mm film for forming spout around the circumference of
It is preferable to leave it so that a spout capable of proper pouring can be formed in the center.

In the present invention, the opening is covered with a release sheet from the outer surface of the container and is attached to the spout forming film. At this time, the peel strength between the release sheet and the film for forming the spout is 0.7 to 4
It is preferable that the film thickness is in the range of kg / 15 mm, and the elongation of the film for forming a spout is 5% or more, preferably 5 to 40%. That is, by doing so, the film for forming a spout that remains in the opening of the container due to peeling is deformed by being pulled to the outside and somewhat protruding to the outside. This is because dripping can be prevented and the object of the present invention can be achieved at a higher level.

The peel strength can be determined by appropriately selecting the materials of the spout forming film and the release sheet to be used. Further, the elongation rate can be achieved by adjusting the material and the thickness.
Specifically, it is preferable to use a laminate film composed of polyethylene (PE) / aluminum foil / epoxy resin as the spout forming film so that the polyethylene adheres to the inner surface of the container. At this time, the thickness of PE is 30
~ 80μ, the thickness of the aluminum foil 30 ~ 70μ, more preferably 40
It is good to set to ~ 60μ.

As the release sheet used in the present invention, a laminated film composed of polyethylene terephthalate (PET) / aluminum foil / polyethylene (PE) is preferably used so that PE adheres to the spout forming film. At this time, PE
T10 ~ 20μ, aluminum foil 20 ~ 40μ, PE 40 ~ 80μ thickness should be used. In the above laminated film,
PE layer is PE (20μ) / (PE / polyvinylidene chloride / PE: 45
μ) layer.

In the present invention, the release sheet may be attached to the spout forming film and the outer surface of the container.

Furthermore, in order to more easily project the spout forming film remaining in the opening of the container to the outside in the present invention, it is preferable to provide a recess of various shapes between the lower end of the opening and the cut or hole, For example, it is provided in a shape that follows the shape of the cut or hole.

In the present invention, further below the opening provided in the container,
It is necessary to provide a pouring auxiliary film (pouring auxiliary member) attached to the outer surface of the container, the lower end of which projects from the roof of the container. As this auxiliary member, PET (10 to 20 μ) /
Aluminum foil (20-40μ) / PE (30-80μ) laminated film or PET (12μ) / Aluminum foil (30μ) / PET (12μ) /
A laminated film of PE (40μ) is preferably used so that PE is attached to the container. At this time, 1 from the roof of the container
It is preferable that the roof portion is provided so as to project by -10 mm, preferably 3-7 mm. That is, in this way, the release sheet is peeled off to form the spout, and when pouring out the content liquid, the content liquid leaked from the spout is guided to the auxiliary member,
This is because it enters the container such as a cup at the same time as the content liquid.

The spout of the present invention can be provided in various containers such as a quadrangular prism, and as the material of the container, various materials such as paper, paper laminated with plastic such as polyethylene, polypropylene and the like can be used. Further, the sticking of the film for forming the spout and the container, the sticking of the release sheet and the outer surface of the container and the film for forming the spout, and the sticking of the auxiliary member and the outer surface of the container can be performed by a known method, Heat sealing is preferred. The shape of the release sheet used in the present invention is arbitrary, but the release sheet is formed into a film having a length capable of covering the pouring auxiliary member, and the lower end of the release sheet is heat-sealed at one or several points to form a container. If it is attached, the release sheet can be easily peeled off, and because the release sheet is fixed to the container during the production of the container, it is preferable that the release sheet is not bent. It is preferable because it does not occur.

〔Example〕

 An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows a perspective view in which a part of the release sheet is cut off, and FIG. 2 shows a sectional view taken along the line AA of FIG. The container shown in this figure is
A Gobel-top type container which is formed mainly of paper having a thermoplastic resin film on both sides and has a pouring opening 3 in a container wall surface 2 of a roof part 1, and an epoxy / aluminum foil on the inner surface of the opening 3. A film 4 for forming a spout, which is made of polyethylene and has a U-shaped cut 5 smaller than the opening 3 in the center, so that the cut 5 is formed inside the opening 3. It has a spout formed by heat sealing.

On the other hand, a pouring auxiliary member 20 is provided below the opening 3.
The auxiliary member 20 for pouring is a laminated film composed of an inner polyethylene and an outer aluminum foil, and the polyethylene layer is placed on the outer surface of the container, and only the part corresponding to the roof part of the container is heat-sealed to the container. It is attached. The auxiliary member 20 is 4 mm below the roof of the container.
The protrusion and the upper end are attached to the spout formation film at the opening of the container.

In the container shown in FIG. 1, a release film 6 made of a laminated material of an aluminum foil and a synthetic resin film is heat-sealed so as to cover the opening 3 and the auxiliary member 20.

At this time, the lower end of the release sheet 6 is attached to the outer surface of the container at a point 21.

A U-shaped cut 5 is formed in the spout forming film 4, but as shown in FIG. 3, a wide crescent-shaped hole 7 is provided below the spout forming film 4 to form a hole 7. After the tongue piece 8 on the top of the sheet peels off the release sheet, it may be attached to the release sheet and left. Further, as shown in FIG. 4, a hole 9 similar to the opening 3 is formed, and short cuts 10 and 10 'are provided on both sides of the upper end of the hole 9 so that the tongue piece 11 can be attached to the release sheet at the time of peeling. You may

As described above, when the tongue pieces 8 and 11 are formed on at least the upper edge of the cut line, the hole or a combination thereof and the release sheet is left on the release sheet after the release sheet is peeled off, the spout can be resealed after the peeling off. preferable.

Another container of the present invention made of the same material as that shown in FIG. 1 is shown in FIG. 5, but when the release film 6 is removed, the release film 7 and the spout for forming the spout are formed as shown in FIG. The tongue piece 12 formed on the film 4 is pulled up to form the spout 13. Then, the peeling of the peeling film 7 is surely stopped at the end of the tongue piece 12.

At this time, the peeling strength at the time of peeling is 1.0 kg / 15 mm (tensilon type tensile tester, pulling speed 200 mm / min, 180 ° peeling),
At this time, the elongation of the spout forming film is 8% (JIS170
Measured according to the tensile test method in 7. The pulling speed was 100 mm / min). Due to such strength and elongation, the spout forming film 4 is stretched and deformed by peeling due to peeling, and as shown in the BB sectional view of FIG. Is formed to project. As shown in FIG. 5, the distance between the lower end 14 of the container pouring opening and the lower end 15 of the cut is
It is 9 mm.

When resealing, return the release film 7 to the original
Can cover 13.

Further, as shown in FIG. 7 and FIG. 8, if a deformed portion 16 composed of one to a plurality of cuts or recesses is provided at the lower edge of the cut 5 of the spout formation film 4, the peeling film is peeled, The deformed portion 16 is pulled out, and the lower portion is projected, which makes it easier to pour the liquid.

〔effect〕

Since the present invention has the above-mentioned structure, when the release sheet is peeled off, the pouring portion is opened and pouring is possible, and further, since the lower end of the pouring auxiliary member projects from the roof portion, dripping occurs at the pouring outlet. However, the liquid can be stopped by the pouring assisting member and can be poured in the same manner as the pouring from the pouring outlet, without the liquid being transmitted to the liquid drop.

Further, if a cut is provided at the lower end of the spout auxiliary member of the release sheet, the spout can be reliably closed by locking the cut at the lower end of the spout auxiliary member during resealing.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention showing a release sheet partially cut away, FIG. 2 is an enlarged sectional view taken along line AA of FIG. 1, and FIGS. FIG. 5 is a plan view showing another form of the film for use in the present invention, FIG. 5 is an explanatory view showing an opened state of a liquid storage container which is another embodiment of the present invention, and FIG. 6 is B- in FIG.
FIG. 7 is an enlarged sectional view of B, FIG. 7 and FIG. 8 are views showing another form of the spout forming film, and FIG. 9 is an explanatory view of a conventional liquid container. In the figure: 1 ... Roof part, 3 ... Pouring opening, 4 ... Film for forming spout, 5 ... Cut, 6 ... Release film, 8, 10,
12 …… tongue piece, 13 …… spout, 20 …… spout auxiliary member.

Continued Front Page (72) Kazuya Sekiguchi 1-5-7 Mikitei-cho, Higashi-Osaka City, Osaka Prefecture House Food Industry Co., Ltd. (56) References JP-A-54-100882 (JP, A) JP-A-62 -78045 (JP, A)

Claims (1)

[Scope of utility model registration request] 1. A container having a bottom surface, a side wall connected to the bottom surface, and a roof portion connected to the other end of the side wall, wherein a pouring opening and a pouring opening formed by cutting out a part of the roof portion. A spout-forming film having an elongation of 5% or more provided with cuts or small holes for cutting in an area smaller than the opening,
A film for forming a spout which is attached to the inner wall of the container so that the cut or hole is located inside the spout for opening, a lower end of the spout for opening and a lower end from the ridgeline of the roof of the container. 10 mm
A spouting auxiliary film attached to the outer surface of the roof of the container so as to project, a release sheet covering the spouting opening and the spouting auxiliary film, and the peel strength between the release sheet and the spout forming film. Of 0.7 to 4 kg / 15 mm on the spout forming film, and the part of the spout auxiliary film protruding from the ridgeline of the roof is closely attached to the side wall of the container connected to the ridgeline of the roof. A liquid storage container provided with a release sheet, characterized in that when the release sheet is peeled off, a part of the spout formation film projects outside the spout opening to form a spout container.