JPS5826934Y2 - easy-to-open containers - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an easy-to-open container made of polyethylene processed paper for soft drinks.

Containers for soft drinks made of polyethylene processed paper include:
There are laws and regulations that require the inner surface of the container to be made of polyethylene, and when paper cup shapes are used, the polyethylene must be heat-sealed together.In this case, the adhesive strength is strong and there are problems with opening the container when eating or drinking. I had left it behind.

Furthermore, the thickness of polyethylene-processed paper is stipulated to be at least 0.22 mm, and it was not possible to sharpen the tip of a throw like that found on dairy containers and use it to make a hole in the lid.

Therefore, the present invention provides a container that can be used for eating or drinking by removing the lid leaving only the innermost polyethylene layer and inserting a straw or the like into the remaining polyethylene layer when the container is opened.

Next, one embodiment of the present invention will be described in detail with reference to the drawings. As shown in FIG. 1, a paper cup 1 with a polyethylene film 3 pasted on the inner surface of the cup is heat-sealed with a lid material 2 having an innermost layer of polyethylene 4. It consists of

Reference numeral 5 denotes a tongue piece 5 protruding from the outer edge of the lid.

The adhesive strength between the innermost layer of polyethylene 4 and the next layer (for example, paperboard) in the lid material 2 is weaker than the adhesive strength due to heat sealing between the paper cup 1 and the lid material 2.

Therefore, when opening the lid, the lid material 2 is peeled off using the tongue piece 5, leaving the innermost polyethylene layer 4, and the polyethylene 4 can be easily eaten or eaten by inserting a sharp straw or the like into the polyethylene layer.

In addition, when coating the above lid material with polyethylene,
The polyethylene extrusion temperature is set low.

Sealing-resistant adhesive agent whose main component is cyclized rubber (e.g. P
3710PG manufactured by Toyo Ink Manufacturing Co., Ltd.), and then extrusion coated with polyethylene.

The adhesive strength is made weak by this method, so that the polyethylene layer of the lid material is easily peeled off when the bag is opened.

Furthermore, the lid material base coated with the innermost layer of polyethylene is not limited to a single layer such as paperboard, but may also be a multilayer such as paperboard/polyethylene or paperboard/aluminum.

As described above, the present invention is extremely excellent as a container for soft drinks, since the inner surface of the lid and the inner surface of the paper cup are completely sealed by polyethylene and its heat seal, and the container is easy to open.

[Brief explanation of the drawing]

The drawings illustrate the present invention, with FIG. 1 being a longitudinal sectional view and FIG. 2 being a perspective view. 1... Paper cup, 2... Lid material, 3...
...Polyethylene, 4...Polyethylene,
5... Tongue piece.

Claims (1)

[Scope of utility model registration request] In paper cup containers whose inner surface is made of polyethylene and are used to package contents that can be absorbed through a straw, such as soft drinks, the innermost layer of the lid material is made of polyethylene that can be easily penetrated with a straw. The adhesive strength between the polyethylene and the next layer of paperboard is set to be lower than the adhesive strength between the lid material and the paper cup, and when the bag is opened, the innermost layer of polyethylene and the paperboard are delaminated using the tongue piece provided on the lid material. An easy-to-open container characterized in that the lid material is removed leaving the innermost polyethylene layer of the lid material on the opening surface of the container.