JP2001278242A - Cup-shaped vessel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an offensive smell from infiltrating into the interior of a cup-shaped vessel made up by applying an external material formed of a coated paper to the exterior of a paper-made cup main body when each of stacked-up vessels are separated from one another. SOLUTION: A surface resin layer 30 formed of a thermoplastic resin is used for the exterior of the external material 20 covering the trunk part 11 of the cup main body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cup-shaped container in which coated paper is used on the outer surface of a body. For example, a heat insulating material is provided between a paper cup body and an outer material made of coated paper. The present invention relates to a heat-insulating cup-shaped container for storing instant noodles, miso soup, soup and the like.

[0002]

2. Description of the Related Art Conventionally, cup-shaped containers using coated paper on the outer surface for performing beautiful printing have been known. For example, a heat insulating material of a type in which an outer surface material made of coated paper such as a coated ball is provided on the outside of a paper cup body, and a heat insulating sheet (heat insulating material) such as embossed paper is adhered between the two to form a heat insulating layer. Are present.

[0003] In these cup-shaped containers, an outer surface material made of a coated ball and a heat insulating sheet are provided on the outer surface side, and a cup-shaped container coming out of a paper cup forming machine is moved upward from the bottom of the cup-shaped container. To the opening of
For example, it is common to stack a certain number of units, such as 50, and pack them in a box.

[0004] However, coated paper used as the outer surface material of these cup-shaped containers contains phenyl which is a by-product of latex synthesis during latex synthesis in a latex adhesive used for fixing a coated layer to paper. It contains cyclohexene, and irritating odor is generated from this phenylcyclohexene. When stacking cup-shaped containers, the coated paper of the inner (upper) cup-shaped container comes into contact with the inner surface of the outer (lower) cup-shaped container. In addition, phenylcyclohexene migrates to the inner surface of the outer (lower) cup-shaped container, resulting in a problem that the flavor of the contents stored in the cup is impaired.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems in a cup-shaped container having a coated paper such as a coated ball adhered to the peripheral wall of a paper cup body. It is an object of the present invention to provide a cup-shaped container in which an irritating odor or the like does not transfer to the inner surface of the cup-shaped container even when a certain number of such containers are stacked.

[0006]

Means for Solving the Problems A first invention of the present invention is:
A cup-shaped container using an outer surface material made of coated paper on a surface to be an outer surface side of a body, wherein a surface resin layer made of a thermoplastic resin is provided on an outer surface side of the outer surface material. It is.

According to a second aspect of the present invention, there is provided a cup-shaped container according to the first aspect, wherein the surface resin layer is provided by bonding a thermoplastic resin film.

A third invention is the cup-shaped container according to the first invention, wherein the surface resin layer is provided by melt-extruding a thermoplastic resin into a film.

A fourth invention is the cup-shaped container according to the first, second or third invention, wherein a printed layer is provided between the surface resin layer and the outer surface material.

According to a fifth invention, in the first, second, third or fourth invention, the cup-shaped container is a heat-insulating cup comprising a cup body and a heat insulating material provided outside the cup body. A cup-shaped container characterized by the following.

As described above, according to the present invention, since the surface resin layer made of a thermoplastic resin is provided on the outer surface side of the outer surface material, when the cup-shaped containers are stacked and stacked, the inner cup-shaped container is removed. Since the contact between the outer surface material and the inner surface of the cup of the outer cup-shaped container is made via the thermoplastic resin, the phenylcyclohexene in the coated paper does not migrate to the inner surface of the outer cup, and therefore, Even if the contents are stored in the cup-shaped container, the flavor of the contents is not impaired.

Further, by providing the printing layer between the coated paper and the thermoplastic resin layer, the printing layer does not directly touch the inner surface of the cup even when the cup-shaped containers are stacked.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments. A cup-shaped container 1 of the present invention, as shown in FIG. 1, for example, comprises a body 11 and a bottom 12, and a cup body 10 having a lip 13 whose outer periphery is curled outward.
And a heat insulating sheet 20 covering the body 11 and affixed to the body 11 via an emulsion adhesive, and a coated paper affixed to the outside of the heat insulating sheet 20 via an emulsion adhesive. And the outer surface material 22. A surface resin layer 30 made of a thermoplastic resin which is a feature of the present invention is provided on the outer surface side of the outer surface material 22.

The paper cup body 10 has a basis weight of 17 for both the body member forming the body portion 11 and the bottom member forming the bottom portion 12.
A sealant layer mainly composed of a heat-sealable resin such as a low-density polyethylene resin (LDPE) is melted on one side of a cup base paper that has been subjected to a water-resistant treatment of about 0 to 310 g / m ² so as to have a total thickness of about 15 to 100 μm. It can be produced using a general paper cup molding machine by using an extruded method or a polyethylene-processed paper formed by laminating films.

In this case, the sealant layer is composed of LDPE alone.
In addition to extruding and forming a layer or a plurality of layers, a high-density polyethylene film (HDPE) is bonded to one side of the cup base paper with a melted LDPE interposed therebetween, and LDPE is further extruded and provided thereon (cup base paper / LD
PE / HDPE / LDPE).

The heat insulating sheet 20 has a basis weight of 100, for example.
~ ² to 5m diameter on bleached kraft paper of ~ 180g / m2
m, 3 to 10 irregularities with a height of about 1 to 5 mm / cm
Embossed paper with ^two distributions can be adopted. In addition, outer surface material 2
2, the coated paper has a basis weight of 170 to 350 g /
About ² m2 of coated cardboard can be used. Usually, a printing layer 25 is provided on the coated surface of the coated paper. These can be pasted on the outer surface of the paper cup body in sequence via an ethylene-vinyl acetate resin-based emulsion-type adhesive (not shown) as shown in the figure to produce the cup-shaped container 1.

In the present invention, a surface resin layer 30 made of a thermoplastic resin is previously provided on the outer surface side of the coated ball which is the outer surface material 22.

As the surface resin layer 30, a thermoplastic resin film such as a biaxially stretched polypropylene film or a polyester film can be preferably used. When these films are used, they are laminated on the outer surface material by bonding using an adhesive. be able to. In addition, polyolefin resins such as polyethylene and polypropylene, polyester resins,
A method in which an acrylic resin or the like is welded to a coated ball by a melt extrusion method to obtain a surface resin layer may be employed. Further, these melt-extrudable resins may be once formed into a film shape, and this may be provided by thermocompression bonding (thermal lamination).

When a biaxially stretched polypropylene or polyester film is used as the surface resin layer 30, the printed layer
5 may be provided.

The above-mentioned cup-shaped container shown in FIG. 1 has a paper cup body and embossed paper between 15 and 40 such as a pure white roll.
A configuration in which thin paper of about g / m ² is provided may be used.

FIG. 2 shows another embodiment of the present invention.
An outwardly projecting annular ridge 40 is provided on the body 11 of the paper cup main body made of the same material as the embodiment of FIG.
An outer surface member 22 made of a coated ball having its lower end curled inward from the upper side and pasted thereto with an emulsion adhesive interposed therebetween, thereby forming a heat insulating space between the body of the paper cup body and the coated ball. Container 2. Outer surface material 22
1 is the same as the embodiment of FIG. 1 in that a surface resin layer 30 made of a thermoplastic resin is provided on the outer surface. Even when the cup-shaped container is stacked similarly to the container of FIG.

[0022]

As described above, the cup-shaped container of the present invention comprises:
Even if many pieces are stacked, the off-flavor due to phenylcyclohexene does not transfer to the inner surface of the cup-shaped container.

[Brief description of the drawings]

FIG. 1 is a partially sectional explanatory view showing one embodiment of a cup-shaped container of the present invention.

FIG. 2 is a partially sectional explanatory view showing another embodiment of the cup-shaped container of the present invention.

[Explanation of symbols]

 1, 2 cup-shaped container 10 paper body 11 body 12 bottom 13 mouth edge 20 heat insulation sheet 22 outer surface material 25 printing layer 30 surface resin layer 40 ‥‥ Circular ridge

Claims (5)

[Claims] 1. A cup-shaped container using an outer surface material made of coated paper on the outer surface side of a body portion, wherein a surface resin layer made of a thermoplastic resin is provided on the outer surface side of the outer surface material. And a cup-shaped container. 2. The cup-shaped container according to claim 1, wherein said surface resin layer is provided by bonding a thermoplastic resin film. 3. The cup-shaped container according to claim 1, wherein said surface resin layer is provided by melt-extruding a thermoplastic resin into a film. 4. The printing apparatus according to claim 1, wherein a printing layer is provided between the surface resin layer and the outer surface material.
Item 10. A cup-shaped container according to item 8. 5. The cup-shaped container according to claim 1, wherein the cup-shaped container is a heat-insulating cup including a cup body and a heat insulating material provided outside the cup body. container.