JPH09226754A - Plug and paper container for liquid with plug - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily remove a plug from a container body by providing a half cut on a flange which can cut an ejection port from the flange. SOLUTION: A plug for external attachment includes an ejection port 11 and a flange 12, while a lower face of the flange 12 is integrally and rigidly attached to, for example, an outer face of an upper plate A1 forming a part of an outer plate of a container body A via adhesive agent or welding. The ejection port 11 is lidded by a lid such as a cap mounted from outside so that it can be screwed or fitted. A half cut 21 is inscribed on the flange 12 of the plug attached to the container body A along its circumferential direction from an outer face or an inner face of the flange 12. Therefore the ejection port 11 made of plastic can be relatively easily separated and removed from the container body A by breaking the half cut 21, thereby facilitating processing at the time of recycling or disposal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container for liquid packaging, a liquid paper container with a stopper in which a liquid paper container is provided with a stopper, and more specifically, in consideration of recyclability of the container, The present invention relates to a stopper and a liquid paper container with a stopper in which a plastic stopper attached to a container body can be easily separated from the container body.

[0002]

2. Description of the Related Art A conventional container body of a liquid paper container with a spigot is formed as a container for liquid packaging by a composite sheet in which a synthetic resin film or an aluminum foil is attached to the front and back surfaces of a paper base sheet. ing.

There are various forms of the container body,
Generally, the top of the container body is provided with a spout for spouting the filled and packed liquid contents (spout and a cap for covering the spout). Is generally provided with a spout portion and a flange portion, on the outer surface of the container body,
Alternatively, the mouth plug is inserted from the inside of the container so as to project to the outer surface, and the flange portion is attached and attached to the inner surface of the container.

Since the above-mentioned stopper is usually made of plastic by molding, when the container body is discarded after the container is used, only the plastic stopper is separated and removed from the container body. It is necessary to separately recycle only the container mainly made of paper.

[0005]

However, the operation of separating the stopper from the container body for the above reprocessing treatment is
When trying to remove the spout from the state of the container as it was, it could not be easily separated and required time and labor.

The present invention is a container formed of a composite sheet mainly composed of a paper base sheet when the liquid paper container with a spout for liquid packaging as described above is to be recycled or disposed of after use. Another object of the present invention is to make it possible to separate and remove the plastic plug portion from the main body more easily than before.

[0007]

Means for Solving the Problems A first invention of the present invention is:
A plug having a spout and a flange, wherein the flange is provided with a half cut capable of separating the spout and the flange.

Next, a second invention of the present invention is to provide a half cut capable of separating a spout and a flange portion on a flange portion on an outer surface or an inner surface of a liquid paper container body mainly composed of a paper base sheet. It is a liquid paper container with a stopper, wherein the liquid stopper is attached.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The stopper according to the first aspect of the present invention and the liquid paper container with a stopper according to the second aspect of the present invention will be described below in detail according to the embodiment shown in FIG.

FIG. 1 is an external perspective view of a spout B of the first invention attached to the upper outer surface plate of a liquid paper container body A from the outside and a liquid paper container with a spout B to which the spout B is attached. .

The container body A of the liquid paper container is a container for liquid packaging, such as a gable top type, which is formed of a composite sheet formed by laminating a paper base material sheet for liquid packaging with a synthetic resin film or the like. In addition, a plastic spout B of the present invention is attached to an outer surface plate A ₁ such as an upper portion (top portion) of the container body A. In addition, spout B
Is an external spout plug attached to the outer surface of the container body A, and is provided with a lid-applying portion C such as a separate cap or an integrated cap so that the lid can be applied.

As shown in the figure, the external spout B is provided with a spout 11 and a flange 12 (overhang), and the lower surface of the flange 12 is a part of the outer surface plate of the container body A. Eggplant,
For example, it is firmly attached to the outer surface of the upper plate A _{1 by} an adhesive or fusion so that it cannot be integrally removed.

A capping portion C such as a cap is screwed or fitted to the spout 11 from the outside so that the cap can be capped.

According to the present invention, as shown in FIG. 1, the flange portion 12 of the spout B attached to the container body A is provided along the circumferential direction of the flange portion 12.
A half cut 21 is engraved from the outer surface side or the inner surface side.

The half cut 21 has a mouth plug B and a container body A.
It is intended to be removed from the container, and is half-cut with a sealing property, liquid leakage resistance, impact rupture resistance, etc., to the extent that it functions sufficiently for liquid packaging.
1 is engraved over the ring-shaped entire peripheral surface or partial peripheral surface of the flange portion 12, and may be continuous line, dotted line, intermittent line, partial line, etc., and the length and shape of the line The thickness and thickness are sufficient if they are the minimum length, shape and thickness that allow the spout B to be removed from the container body A.

The half cut 21 has a flange portion 12
Along the ring-shaped peripheral surface of the single linear or double linear (Fig. 1
(Refer to FIG. 3), a half-cutting starting point is provided with a projecting pull tab 22 as required.

[Composite sheet of container body with stopper] The laminated structure of the composite sheet forming the outer plate constituting the container body A with stopper is at least a paper base sheet,
It is composed of one to a plurality of synthetic resin film layers laminated on both sides thereof.

For example, a paper base sheet layer, polyethylene film layers laminated on both sides thereof, an aluminum foil layer sequentially laminated on one polyethylene film layer corresponding to the inner surface side of the container body A, and polyethylene terephthalate. It is a film layer and a polyethylene layer.

The composite sheet forming the container body A may have various laminated structures other than the above, and is not particularly limited in the present invention.

[Material of Plug] The outer surface plate of the container body A of the liquid paper container with a plug formed by the above composite sheet has a polyethylene film layer on the outermost surface, and the plug B is attached on the polyethylene film layer. Since it is fixed and fixed, a polyethylene resin or a material having adhesiveness and fusion property to this resin is used as the material of the stopper B or at least the material forming the lower surface of the flange portion 12.

When, for example, a polyethylene terephthalate film layer is laminated on the outermost surface of the composite sheet instead of the polyethylene film layer, polyethylene is used as the material of the stopper B or at least the lower surface of the flange portion 12 thereof. A terephthalate resin or a material (blend resin or the like) having adhesiveness and fusion bonding property to this resin is used.

[Main body 1 of spout and container with mouth] FIG. 2
(A) it is, on the outer surface of the outer surface plate A ₁ of the container body A, spout 11 mounted to cover the opening A _O was Ana設the outer surface plate A ₁ (11a has holes portion for pouring) B (external spout) and liquid paper container A with spout by the flange and the flange portion 12
It is.

The spigot B has a ring shape in which the lower surface of the flange portion 12 and the outer surface of the peripheral end portion of the outer surface plate A ₁ are superposed on each other, and the superposed inner surface is superposed from the outer surface side of the container main body A as necessary. The film 13 (anchor film having a good adhesive sealability) is attached and attached by an adhesive or heat fusion.

When the ring-shaped film 13 is used, the ring protruding from the inner surface of the container body A (the surface in contact with the liquid content) and the opening A _O of the container body A, if necessary. The inner film 14 (a thin film such as an aluminum foil or a synthetic resin film) is adhesively sealed to the lower surface of the film 13.

As shown in FIG. 2 (a), the half cut 21 is engraved in a continuous double line (strip) along the lower peripheral surface of the flange portion 12 of the spout B, and Cut 2
At one starting point of 1, the pull-out 22 protruding outwardly
Is provided, and the half cut 21 is broken while pulling the pull tab 22 so that the spout 11 can be separated from the flange 12. Half cut 2
Although 1 is a continuous line of double lines in order to facilitate breakage, it may be a single line, or may be a dotted line or a discontinuous line if necessary.

[Mouth stopper and container body with mouth part 2] FIG. 2
(B) is, on the outer surface of the outer surface plate A ₁ of the container body A, so as to cover the opening A _O was Ana設the outer surface plate A _1, the Part 1
A stopper B (external stopper) and a liquid paper container A with a stopper, which are attached in the same manner as in (FIG. 1A).

As shown in FIG. 2B, the half cut 21 provided on the flange portion 12 of the spout B has a double continuous line shape along the upper peripheral surface of the flange portion 12 of the spout B ( Band)
A pull tap 22 protruding inward of the container body A is provided at one starting point of the half cut 21, and the half cut 21 is broken while pulling the pull tab 22 after disassembling the container body A. Thus, the spout 11 can be separated from the flange 12. The half-cut 21 has a continuous double-line shape for ease of breakage, but may have a single-line shape, or may have a dotted-line shape or an intermittent-line shape, if necessary.

[Main body of cap and container with mouth part 3] FIG. 2
(C) shows the inner surface of the outer surface plate A ₁ of the container body A (the surface that comes into contact with the liquid content) inside the container body A from the inside of the container body A in the opening A _{O formed} in the outer surface plate A ₁ . Plug B fitted with the spout 11 and attached so as to cover the opening A _O
(Internal mouth plug) and liquid paper container A with a mouth plug.

The spigot B is not shown in which the upper surface of the flange portion 12 and the inner surface of the peripheral end portion of the outer surface plate A ₁ are superposed on each other, and the superposed inner surface is superposed from the inner surface side of the container main body A if necessary. A ring-shaped film (anchor film having a good adhesive sealing property) is used to attach and attach the film by an adhesive or heat fusion.

If necessary, the lower surface of the flange portion 12 is provided with an unillustrated inner sticking film (a thin film such as an aluminum foil or a synthetic resin film) for closing the spout portion 11 from the inner surface side of the container body A. It is an adhesive seal.

If necessary, as shown in FIG. 2 (c), the hole forming part 1a is provided in the hole forming part 11a of the spout 11.
There are provided a blocking plate 15 for blocking 1a, a pull ring 16 for pulling the blocking plate 15, and a half cut 17 for breaking the blocking plate 15.

As shown in FIG. 2 (c), the half cut 21 is formed in a double continuous line (belt) along the lower peripheral surface of the flange 12 of the spout B, and the half cut 21 is cut. 21
A pull tap 22 protruding outward is provided at one of the starting points, and the half cut 21 is broken while pulling the pull tab 22 so that the spout portion 11 can be separated from the flange portion 12. In addition, half cut 21
In order to make it easy to break, a double line was used as the continuous line, but if necessary, it may be a single line, or may be a dotted line or an intermittent line.

[Mouth Plug and Container Body with Mouth Part 4] FIG. 2
(D) is the inner surface of the outer surface plate A ₁ of the container body A (the surface that comes into contact with the liquid content) inside the container body A from the inside of the container body A in the opening A _{O formed} in the outer surface plate A ₁ . Note fitted an outlet portion 11, so as to cover the opening a _O, the part 3 (FIG. 2
Plug B (internal plug) attached in the same manner as in (c))
And a liquid paper container A with a stopper.

As shown in FIG. 2D, the half cut 21 provided on the flange portion 12 of the spout B has a double continuous linear shape along the upper peripheral surface of the flange portion 12 of the spout B ( Band)
A pull tap 22 protruding inwardly of the container body A is provided at one starting point of the half cut 21 and the half cut 21 is pulled while pulling the pull tab 22.
The spout 11 can be separated from the flange 12 by breaking. The half-cut 21 has a continuous double-line shape for ease of breakage, but may have a single-line shape, or may have a dotted-line shape or an intermittent-line shape, if necessary.

[Main body 5 of spout and container with mouth] FIG. 3
(A) it is, on the outer surface of the outer surface plate A ₁ of the container body A, spout 11 mounted to cover the opening A _O was Ana設the outer surface plate A ₁ (11a has holes portion for pouring) B (external spout) and liquid paper container A with spout by the flange and the flange portion 12
It is.

The stopper B has a ring shape in which the lower surface of the flange portion 12 and the outer peripheral surface of the outer surface plate A ₁ are superposed on each other, and the superposed inner surface is superposed on the inner surface from the outer surface side of the container main body A as required. The film 13 (anchor film having a good adhesive sealability) is attached and attached by an adhesive or heat fusion.

When the ring-shaped film 13 is used, if necessary, the inner surface of the container main body A (the surface in contact with the liquid content) and the ring protruding from the opening A _O of the container main body A The inner film 14 (a thin film such as an aluminum foil or a synthetic resin film) is adhesively sealed to the lower surface of the film 13.

As shown in FIG. 3 (a), the half cut 21 is engraved in a single continuous line along the lower peripheral surface of the flange portion 12 of the spout B, and one of the half cuts 21 is cut. An outwardly protruding pull tap 22 (pull ring) is provided at the starting point, and the pull tab 22 is provided along the outer circumference of the spout portion 11 with a predetermined gap into which the lid portion C (see FIG. 1) can be inserted. They are spaced apart and provided in a ring shape. Note that FIG. 5 is a perspective view of the plug B.

While pulling the pull tab 22, the half cut 21 is broken so that the spout 11 can be separated from the flange 12. Half cut 2
1 may be a continuous line of double lines because it is easy to break,
It may be a dotted line or a discontinuous line if necessary.

[Mouth Plug and Container Body with Mouth Part 6] FIG. 3
(B) shows the inner surface of the outer surface plate A ₁ of the container body A (the surface in contact with the liquid content) inside the container body A inside the opening A _{O formed} in the outer surface plate A ₁ . Plug B fitted with the spout 11 and attached so as to cover the opening A _O
(Internal mouth plug) and liquid paper container A with a mouth plug.

The spigot B is not shown, in which the upper surface of the flange portion 12 and the inner surface of the peripheral end portion of the outer surface plate A ₁ are superposed on each other, and the superposed inner surface is superposed from the inner surface side of the container main body A if necessary. A ring-shaped film (anchor film having a good adhesive sealing property) is used to attach and attach the film by an adhesive or heat fusion.

If necessary, on the lower surface of the flange portion 12, an unillustrated inner pasting film (a thin film such as an aluminum foil or a synthetic resin film) for closing the spout portion 11 from the inner surface side of the container body A is provided. It is an adhesive seal.

If necessary, as shown in FIG. 3 (b), the hole forming part 1 is provided in the hole forming part 11a of the spout 11.
There are provided a blocking plate 15 for blocking 1a, a pull ring 16 for pulling the blocking plate 15, and a half cut 17 for breaking the blocking plate 15.

As shown in FIG. 3 (b), the half cut 21 is engraved in a continuous continuous line along the lower peripheral surface of the flange portion 12 of the spout B, and one of the half cuts 21 is formed. An outwardly protruding pull tap 22 (pull ring) is provided at the starting point, and the pull tab 22 is provided along the outer circumference of the spout portion 11 with a predetermined gap into which the lid portion C (see FIG. 1) can be inserted. They are spaced apart and provided in a ring shape. Note that FIG. 5 is a perspective view of the plug B.

While pulling the pull tab 22, the half cut 21 is broken so that the spout 11 can be separated from the flange 12. Half cut 2
1 may be a continuous line of double lines because it is easy to break,
It may be a dotted line or a discontinuous line if necessary.

[Main Body of Mouth Plug and Mouth No. 7] FIG. 3
(C) shows the inner surface of the outer surface plate A ₁ of the container body A (the surface that comes into contact with the liquid content) inside the container body A from the inside of the container body A in the opening A _{O formed} in the outer surface plate A ₁ . Note fitted an outlet portion 11, so as to cover the opening a _O, the part 6 (Fig. 3
Plug B installed in the same manner as (b)) (internal plug)
And a liquid paper container A with a stopper.

The half cut 21 of the mouth plug B is shown in FIG.
As shown in FIG. 2, the half cut 21 is engraved in a single continuous line along the upper peripheral surface of the flange portion 12 of the spout B.
A pull tap 22 (pull ring) protruding inwardly of the container body A is provided in a ring shape at one starting point.

After the container body A is disassembled, the half cut 21 is broken while pulling the pull tab 22 so that the spout 11 can be separated from the flange 12. Note that the half cut 21 may have a continuous double-line shape for ease of breakage, or may have a dotted line shape or an intermittent line shape as necessary.

[Main body 8 of spout and container with mouth] FIG. 4
(A) is a plug B attached to the inner surface or the outer surface of the outer surface plate A ₁ of the container body A in the same manner as in the above 1 to 7.
FIG. 4 is a side view of the (external plug or internal plug), and FIG.
(B) is the top view.

The half-cut 21 of the stopper B is engraved in a continuous continuous line along the upper peripheral surface of the flange 12 of the stopper B, and serves as one starting point near the half-cut 21. The outer peripheral portion of the lower end portion (boundary portion with the flange portion 12) of the spout portion 11 is provided with an overhanging protrusion portion 18 that integrally protrudes laterally, and the protrusion portion 18 corresponds to a pull tap 22.

The half cut 21 is broken by pulling the spout portion 11 while pulling the protrusion 18 corresponding to the pull tab 22 upward, and the spout portion 11 is connected to the flange portion 1.
It is separated from 2. The half cut 21 may have a continuous linear shape for easy breakage, or may have a dotted linear shape or an intermittent linear shape as necessary.

[Mouth Plug and Container Body with Mouth No. 9] The mouth plug B of the present invention is, for example, not shown, but its spout 1
A cylindrical body that is slidable in the vertical direction along a linear guide that is continuously provided on the inner peripheral surface is provided in the holed portion 11a of No. 1, and a blade portion such as a serrated shape is provided at the lower end of the cylindrical body. It may be a thing.

This mouth plug B has the structure shown in FIG.
(B), an inner pasting film 14 (aluminum foil, synthetic film) for sealing that hermetically seals the opening A _O for liquid pouring, which is preliminarily provided in the outer surface plate A ₁ of the container body A in FIG. 3 (a). Liquid paper container body A of a type equipped with a resin thin film)
It is used as a mouth plug.

The above-mentioned cylindrical body is in the upper stop position when the lid cover C is screwed onto the outer periphery of the spout 11 of the spout B and is in the upper stop position. It is possible to push down the cylindrical body, and the serrated blade portion at the lower end portion of the cylindrical body breaks the inner coating film 14 below to open it.

Alternatively, by loosening the applied lid portion C by rotation, a cam shaft (not shown) integrally provided in the inside of the applied lid portion C in the vertical direction is rotated and provided on the cylindrical body. With the cam follower fitted to the cam provided on the outer periphery of the cam shaft, the cylindrical body is moved down to the lower stop position, and the inner sticking film 14 located below is lowered by the serrated blade portion at the lower end of the cylindrical body. It can be broken and opened.

[Various Planar Shapes of the Periphery of the Flange Portion] The planar shape of the flange portion 12 of the spout B of the present invention may be various shapes such as a circular shape and a polygonal shape. , An elliptical shape, a polygonal shape such as a substantially pentagon, and the like.

[Regarding Various Plane Shapes of Half Cut]
The shape of the half cut 21 engraved on the flange portion 12 of the stopper B of the container body A may be various shapes such as a shape corresponding to the shape of the flange 12 of the stopper B to be attached.

[Regarding Shape of Tab] The shape of the tab 22 is not particularly limited, and may be a protruding piece, a protruding shape, or a ring shape.

[0059]

INDUSTRIAL APPLICABILITY The mouthpiece and the liquid paper container with a mouthpiece according to the present invention can be used as a paper base without requiring a great deal of time and labor as in the conventional case when it is used after being used and is recycled. When the plastic spout can be separated and removed relatively easily by breaking the half cut from the container body, which is mainly composed of material sheets, and is recycled or discarded after use. There is an effect that the processing operation of can be facilitated.

[Brief description of drawings]

FIG. 1 is an external perspective view of a stopper and a liquid paper container with a stopper according to the present invention.

2 (a) to 2 (d) are a side sectional view of a cap of the present invention and a partial side sectional view of a liquid paper container with a cap.

3 (a) to 3 (c) are a side sectional view of a stopper of the present invention and a partial side sectional view of a liquid paper container with a stopper.

FIG. 4 (a) is a side view of an embodiment of the spout of the present invention, and FIG. 4 (b) is a plan view thereof.

FIG. 5 is a perspective view of another embodiment of the spout of the present invention.

[Explanation of symbols]

A ... Container body A _O ... Opening A ₁ ... Outer surface plate B ... Spigot C ... Covering part 11 ... Spouting part 11a ... Hole forming part 12 ... Flange part
13 ... Ring-shaped film 14 ... Inner film 15 ... Closing plate 16 ... Pull ring 18 ... Protrusion 21 ... Half cut 22 ... Pull tab

Claims (2)

[Claims] 1. A spout having a spout and a flange, wherein the flange is provided with a half cut capable of separating the spout and the flange. 2. A liquid paper container with a stopper, wherein the stopper according to claim 1 is attached to an outer surface or an inner surface of a liquid paper container body mainly composed of a paper base sheet.