JPH0549679U - Beverage container - Google Patents

Abstract

(57) [Summary] [Objective] To provide a container for food and drink, which is excellent in heat insulating property and heat retaining property, and has a low calorie incineration even when incinerated and can reduce the production amount of harmful substances. [Structure] An uneven surface pattern 2 of satin finish was formed on the outer peripheral surface of the container body 3, and the outer peripheral surface was closely covered with a foamed polypropylene film 4 to form the pattern surface of the uneven pattern 2 on the surface of the expanded polypropylene film 4.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a food and drink container that can be safely held by pouring hot water or the like without transmitting the heat to fingers and the like.

[0002]

[Prior Art]

 When hot water is put into a container such as a paper cup, the heat is hardly insulated. As a result, the heat of this boiling water is transmitted to the fingers, which may not be able to hold for a long time, or may cause burns in some cases. In addition, since the paper container has low heat retention, the temperature will drop immediately even if hot water is added. For this reason, for example, when instant noodles are stored in the paper cup and restored by pouring hot water, the temperature of the hot water does not maintain the temperature required for noodle restoration, so the noodles are incompletely restored to a solid state. And the soup becomes lukewarm. Therefore, Styrofoam containers have been developed and are on the market, which retains heat even when hot water is added to them, and has high heat retention.

[0003]

[Problems to be solved by the device]

 However, the styrofoam container is excellent in heat insulation and heat retention, but its cost is high. Therefore, if instant food or the like is stored in the container, it becomes a product with high selling price. In addition, since styrofoam generates a high amount of calories burned during incineration, incinerating a large amount of the above containers will cause an inconvenient situation of damaging the incinerator and producing harmful substances such as nitrogen oxides. To do. Further, since the styrofoam container has a large thickness of 2 to 3 mm, stacking a large number of cups makes the container bulky and requires a large storage space at the time of inventory.

The present invention has been made in view of such circumstances, and provides a container for food and drink, which is excellent in heat insulation and heat retention and has a low calorie incineration and can reduce the production of harmful substances. To aim.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the container for food and drink of the present invention has an uneven pattern formed on the outer peripheral surface of the container body, and the outer peripheral surface is tightly covered with a foamable synthetic resin film to cover the uneven pattern surface. It is formed on the surface of a foamable synthetic resin film.

[0006] The uneven pattern is intended to include a satin finish, ribs, and the like.

[0007]

[Action]

 That is, the container for food and drink of the present invention is one in which the outer peripheral surface of the container body made of paper, polypropylene or the like is tightly covered with a foamable synthetic resin film. Therefore, since the expandable synthetic resin film serves as a heat insulating layer, even if hot water or the like is put in the container body, the heat released from the hot water is hardly transmitted from the container to the fingers. At the same time, since the foamable synthetic resin film also has a heat retaining effect, the temperature of the hot water or the like contained in the container does not decrease so much, and a substantially constant temperature can be maintained for a long time. In addition, since an uneven pattern is formed on the outer peripheral surface of the container body, the air layer formed by this uneven pattern serves as a heat insulating layer. Therefore, the heat insulating effect is further enhanced by the foamable synthetic resin film and the concavo-convex pattern, so that even if hot things are contained in the container, there will be no hot feeling or burns. Furthermore, by closely enclosing the foamable synthetic resin film on the outer peripheral surface of the container body, the concavo-convex pattern is also formed on the surface of the foamable synthetic resin film. It is hard to slip when held and easy to hold.

Next, this invention will be described.

The container for food and drink comprises a container body having an outer peripheral surface with an uneven pattern, and a foamable synthetic resin film encapsulated on the outer peripheral surface of the container body.

The container body is made of a material that does not deform even when hot water such as 90 to 100 ° C. is poured, and does not leak liquid. As a specific example, paper, polypropylene or the like is used. When using paper, the inner surface is usually waterproofed before use.

The uneven pattern formed on the outer peripheral surface of the container body is not particularly limited, and the uneven pattern of the rib 1 extending in the vertical direction shown in FIG. 1 and the satin uneven pattern 2 shown in FIG. 2 are formed. To be done.

As the foamable synthetic resin film closely adhered to the outer peripheral surface of the container body, a foamed polypropylene film, a foamed polystyrene film, a foamed polyvinyl chloride film, a foamed polyethylene or the like is used. The brand name, character display, etc. are printed on the back side by gravure printing.

The food and drink container is produced, for example, as follows. First, as shown in FIG. 3, a container body 3 having a cup-shaped polypropylene shape and a satin-textured pattern 2 formed in a predetermined area on the outer peripheral surface thereof is prepared. A polypropylene film 4 is provided. Next, hot air (60 to 70 ° C.) is sent in this state to shrink the foamed polypropylene film 4 and bring it into close contact with the outer peripheral surface of the container body 3. Thus, the food and drink container 5 as shown in FIG. 2 is obtained.

The foamed polypropylene film 4 preferably has a thickness of 10 to 500 μm, more preferably 200 to 300 μm in a state of being in close contact with the outer peripheral surface of the container body 3.

Next, examples will be described.

[0016]

【Example】

 2 and 4 show an embodiment of the container for food and drink of the present invention. The container 5 for food and drink comprises a container body 3 having a cup shape made of polypropylene and having an uneven surface pattern 2 on the outer peripheral surface thereof, and a foamed polypropylene film 4 closely encapsulating the outer peripheral surface of the container body 3. Has been done. Pour hot water of 100 ° C into this food / beverage container 5 and measure the temperature of the surface of the foamed polypropylene film 2 immediately after (0 minutes), 3 minutes, 5 minutes, and 10 minutes later by a conventionally known sensor. It was measured. At the same time, the temperature of the hot water was measured immediately after (0 minutes), after 3 minutes, after 5 minutes, and after 10 minutes.

Further, as Comparative Example 1, a container for food and drink in which the outer peripheral surface of the container body having the same shape as that of the above-mentioned embodiment is not formed with an uneven pattern, and the outer peripheral surface of the container body is tightly covered with a foamed polypropylene film. Hot water of 100 ° C. was poured onto the surface of the foamed polypropylene film 2 immediately after (0 minutes), after 3 minutes and after 5 minutes, and after 3 minutes and 5 minutes of hot water as in the above example. The temperature was measured. At the same time, as Comparative Example 2, 100 ° C. hot water was poured into a polypropylene container having substantially the same shape and volume as the food / drink container 5, immediately after (0 minutes) and after 3 minutes as in the above Example. The temperature of the surface of the container after 5 minutes and 5 minutes and the temperature of the hot water after 3 minutes and 5 minutes were measured. The results are shown in Table 1 below together with the results of the above examples.

[0018]

[Table 1]

From the results of Table 1 above, since the food and drink container 5 of the example has higher heat insulation than the containers of the comparative examples 1 and 2, it can be held even if hot water is added without feeling hot. I understand this. At the same time, it can be seen that the food and drink containers 5 of the examples have high heat retention and can suppress a decrease in temperature for a long time.

As described above, in the food / drink container 5, the air layer of the uneven pattern 2 of the container body 3 and the expanded polypropylene film 4 serve as a heat insulating layer. Therefore, even if hot water or the like is put into the container 5, the heat released from the hot water is hardly transferred to the fingers, and the container 5 can be safely held. At the same time, since the film 4 also has a heat retaining effect, the temperature of the hot water etc. put in the container 5 is less likely to decrease, and for example, it is used as a container for various instant foods to be poured by pouring hot water such as instant noodles. be able to. Further, since the uneven pattern 2 makes the container less slippery when held with fingers, the container 5 can be held in a stable state. Further, since the film 4 has an extremely thin thickness, it does not become bulky even when a plurality of the containers 5 are fitted and stacked, and can be stored in a small storage space. Furthermore, since the film 4 is partially adhered to the outer peripheral surface of the container body 3, the amount of incinerated calories and the generation of harmful substances can be significantly reduced even when incinerated as compared with Styrofoam. .. If the product name, quality display, etc. are printed on the film 4 in advance, it is possible to display a clear display in addition to the heat insulating effect.

[0021]

[Effect of the device]

 As described above, in the container for food and drink according to the present invention, the outer peripheral surface of the container body on which the uneven pattern is formed is tightly covered with the foamable synthetic resin film. Therefore, since the air layer having an uneven pattern on the outer peripheral surface of the container body and the foamable synthetic resin film serve as a heat insulating layer, even if hot water or the like is put into the container, the heat released from the hot water is almost transmitted to the fingers from this container. Never. At the same time, since the foamable synthetic resin film also has a heat retaining effect, the temperature of the hot water or the like placed in the container does not decrease so much, and a substantially constant temperature can be maintained for a long time. Further, since the outer peripheral surface of the container body was closely covered with the expandable synthetic resin film to form an uneven pattern on the surface of the expandable synthetic resin film, the container was held by fingers. It is hard to slip and easy to hold. Furthermore, if the container body and film of the container for food and drink of the present invention are made of paper with low incineration calories and synthetic resin such as polypropylene, the incineration calories at the time of incineration and the production of harmful substances can be reduced. It becomes possible.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a front view showing another embodiment of the present invention.

FIG. 3 is an explanatory diagram for manufacturing the above-described embodiment.

FIG. 4 is a vertical sectional view of the above embodiment.

[Explanation of symbols]

 2 Concavo-convex pattern 3 Container body 4 Foamed polypropylene film 5 Container for food and drink

Claims (2)

[Scope of utility model registration request] 1. An uneven pattern is formed on the outer peripheral surface of a container body,
A container for food and drink, characterized in that the outer peripheral surface is tightly covered with a foamable synthetic resin film, and the pattern surface of the uneven pattern is formed on the surface of the foamable synthetic resin film. 2. The container for food and drink according to claim 1, wherein the foamable synthetic resin film layer has a thickness of 10 to 500 μm.