JPS5834046Y2 - Easy-open container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention particularly relates to an easy-to-open container for soft drinks.

Containers for soft drinks are subject to regulations by the Ministry of Health and Welfare, which require that the lids of cup containers be bonded to polyethylene/polyethylene, that is, heat-sealed.

Therefore, since peelability cannot be imparted, there is a problem in unsealability.

The present invention has been made with this point in mind.

Paper cup containers filled with soft drinks have not yet appeared.

There are also paper cup containers that are easy to peel off, but these are for milk and dairy products such as milk, and do not require polyethylene/polyethylene adhesion like soft drinks.

Therefore, as mentioned above, soft drink cup containers are regulated by the Ministry of Health and Welfare, and in this situation, a soft drink cup container has a tab on its lid, which can be removed from the cup. A cup that can be drunk directly has not yet appeared on the market.

In the paper cup container of the present invention, at least the inside of the cup part is laminated with a film such as polyethylene, and on the other hand, in order for the lid to be heat-sealed with the cup, at least the inside is laminated with a layer of heat-fusible resin such as polyethylene. In addition, it is necessary to heat-bond a plastic tab on top of the lid to make it easy to open, so the top layer of the lid is also laminated with a heat-fusible film, such as polyethylene. It is necessary.

Therefore, it is necessary that the top and bottom of the lid material be laminated with heat-sealable plastic films.

The tab used in the case of adhering (e.g. heat-sealing) the tab to the lid of the present invention and peeling it off to allow the soft drink to be drunk directly from the cup is made of plastic, and is particularly made of - axially stretched. Polyethylene or polyester is recommended.

As for the shape, it is common sense to make the finger rest ring-shaped so that it is easy to insert the finger, and the opening is where the tab is attached for direct drinking.

Whether the finger rest is ring-shaped or tongue-shaped, this part must be free and not adhered to the lid.

The invention will now be explained by means of illustrated embodiments.

Figure 1 is a partial cross-sectional view showing the state of adhesion between the lid and tab of a product not intended for soft drinks but traditionally used (mainly for milk, juice, etc.), where a is the polyethylene layer of the lid, and b is the lid's polyethylene layer. It is a paper layer.

a' is the polyethylene layer of the tab, b' is the paper layer of the tab, and C is the notch for the opening.

In this case, when the tab is pulled up, the polyethylene layer (a) at the bottom of the lid remains, resulting in a drawback.

With the structure of the present invention, the adhesive between the tab and the lid is strong, and when the tab is pulled up, the adhesive part opens neatly.

The invention will now be explained by means of illustrated embodiments.

FIG. 2 is a sectional view of the soft drink paper cup container of the present invention.

A is the cup body, B is the lid, and C is the plastic tab.

1 is a paper layer, and 2 is a plastic film layer such as polyethylene.

Tab C is made of uniaxially oriented polyethylene or polyester.

3 is a heat-sealed portion between the tab C and the lid B, 4 is a free portion of the tab which is annular, and 5 is a hole in the ring.

Figures 3, 4, and 5 show the shape of the tab of the paper container for soft drinks of the present invention, its adhesion position (shaded area), and the opening state when the tab is pulled up. Fig. 5 is an explanatory diagram showing the shape of the tab, the state of adhesion of the tab where the mouth is glued to the lid, and Fig. 5 is an explanatory diagram showing the pulling up of the tab. This shows how the entire image is removed.

Figure 6 also shows that if the lid is placed below and inward from the upper edge of the cup, the area that is peeled off when the lid is opened is below the upper edge of the cup, so the cut end will cut the lip when drinking directly. This can be completely prevented, so A is a perspective view of the cup container with the lid dropped into it, and the mouth is a cross-sectional view of it.

As described above, the present invention provides a soft drink container, the container having a heat-fusible synthetic resin layer at least on the innermost side,
In addition, a synthetic resin tab, which has greater rigidity than the lid with the knob in its free state, is glued to the surface of the lid, whose top and bottom surfaces are laminated with heat-sealable plastic film, and when the tab is pulled up, the tab and the lid are connected. The key point is to create an opening that opens at the adhesive part of the tab.In particular, since the tab is made of synthetic resin, it has good adhesion to the lid, and since the tab is brighter than the lid, the tab can be removed by pulling it up. The part of the lid material that is glued to the lid is removed, allowing for easy and clean opening.

Furthermore, by partially opening the lid, it is possible to prevent the contents from spilling outside the container and preventing dust from entering when carrying the container after opening.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional explanatory diagram showing the state of the tab attached to the lid of a conventional paper cup container, FIG. 2 is a cross-sectional view of the soft drink paper cup container of the present invention, FIGS. 3, 4, and 5. Figure 6 is an explanatory diagram showing the position and state of the tab adhered to the lid of the cup container of the present invention and the opening state when the tab is pulled up.
Figure A is a perspective view of the lid installed inside the cup, and the mouth is also a cross-sectional view. 1... Paper layer, 2... Plastic film layer such as polyethylene, 3... Adhesive part, 4...
...Release part after tab attachment, 5 ... Ring hole, 6 ... Opening, A ... Cup body, B ... ...Lid, C...Tab.

Claims (1)

[Scope of utility model registration request] A soft drink container has a heat-fusible synthetic resin layer at least on the innermost side, and has a synthetic resin tab that is brighter than the lid with the knob in a free state, and has heat-fusible synthetic resin tabs on both top and bottom surfaces. An easy-to-open container characterized in that a plastic film is adhered to the surface of a lid laminated with a plastic film, and when the tab is pulled up, the container opens at the bonded portion between the tab and the lid.