JPS6233739Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a container that does not burn in an oven or the like.

Contents 2 in a container 1 that is generally made of paper
When heating the container in an oven, toaster oven, etc., the curled portion 3 and flange 4 of the rim of the container shown in FIGS. 1 and 2, or the outer wall 5 of the container, which are not in contact with the contents, are burnt due to the heating temperature.

However, in the above cases, if the container is made of paper with plastic pasted on its inner and outer surfaces, or if it is made of paper alone, the outer surface of the container is aluminum foil, and the inner surface is covered with plastic such as polyester. The portion 5 is not burnt, but the inner plastic (polyester, etc.) portion 3, 4 above the contents surface 6 is burnt.

However, the biggest drawback is that it is impossible to prevent the occurrence of burns on the curled portions and flange portions 3 and 4, which are directly exposed to the heat rays from the top surface.

Of course, if you use a container with aluminum foil laminated on both the inside and outside surfaces, there will be no burnt parts on the curled part or flange parts 3 and 4, but the inner surface will be affected by corrosion and elution depending on the contents, making it very expensive. .

This project was devised to solve the above-mentioned problems.The container is formed from materials laminated in this order: heat-resistant plastic such as polyester, paper, and aluminum foil from the inside, and the rim of the container is placed on the outside. The aluminum foil is bent toward the container to form a stepped portion, and the mouth edge extending upward from the stepped portion is folded flat toward the inside so that its tip reaches close to the surface of the contents. It is designed to face inward.

Since the present invention is constructed as described above, the outer wall of the container is made of aluminum foil to prevent burning, and the inner surface of the container is made of plastic (polyester, etc.) to prevent the effects of corrosion and elution from the contents. Since the rim of the container is folded inward, the aluminum foil faces the inside of the container, and the heat rays coming from the top only hit the aluminum foil and the contents. Aluminum foil will prevent burns. In some cases, the tip portion, which is flattened inward at the mouth edge, may serve to secure the lid.

The embodiments shown in the drawings will be described below.

In FIGS. 3 and 4, the container 1 is made of materials laminated in this order from the inside: plastic 7, paper 8, and aluminum foil 9. The edge of the container is bent outward to form a stepped portion 10, which Furthermore, the mouth edge extending upward is folded inward so that its tip reaches close to the content surface 6, and the aluminum foil 9 is configured to face the inside of the container. . The lip 15 folded inward may or may not be sealed 11 to the outside, but it can be sealed by forming a gap 13 between the tip 12 of the fold and the step 10 as shown in FIG. It is constructed so that the lid 14 can be fitted into it, or it is constructed so that there is no gap as shown in FIG.

As mentioned above, the parts of the container in this case that are in direct contact with the contents are made of plastic, so they are not affected by corrosion or elution from the contents, and the outer wall of the container that is not in contact with the contents is made of aluminum foil. It will not get burnt by the heat rays, and furthermore, the folded part of the mouth edge will not get burnt because the aluminum foil will directly correspond to the heat rays.

To form the container of the present invention, as shown in FIG. 5, first, the upper edge of the fan-shaped paper tip blank plate 13 is bent inward as shown in FIG. Fold inside or seal as necessary.

Thereafter, the blank plate 13 is rolled up to form a container body as shown in FIG. 5D.

In addition to forming the container through the steps described above, after forming the container body as shown in Figure 6A, fold the rim horizontally as shown in Figure 6B, and then fold it inward as shown in Figure 6C. Seal if necessary.

FIG. 7 shows the bent step portion 10 formed inward. The rest is the same as the other embodiments. According to this, the body and mouth rim of the outer surface of the container are formed on the same plane. The molding method is to first bend the upper edge of the blank plate 13 inward, then press to form the stepped portion 10, and then roll the blank plate 13 to form the container body.

In any case, the container of the present invention is characterized in that the rim of the container does not burn even when heated in an oven, toaster oven, etc., and the periphery of the outer wall of the container also does not burn.

[Brief explanation of the drawing]

Figures 1 and 2 are cross-sectional views of the conventional container, Figures 3 and 4 are cross-sectional views of the container of the present invention, Figures 5 A, B, C, and D, and Figure 6 A, B, and C are forming of the container of the present invention. An explanatory diagram showing the order, and FIG. 7 is a partially cutaway perspective view showing another embodiment of the container of the present invention. 1... Container, 2... Contents, 7... Plastic (polyester, etc.), 8... Paper, 9... Aluminum foil, 12... Folding part.

Claims (1)

[Scope of utility model registration request] Heat-resistant plastic such as polyester from inside,
A container is formed from materials laminated in the order of paper and aluminum foil, the rim of the container is bent either inward or outward to form a step, and the rim extending upward from the step is turned inward. 1. A container that is not burnt in an oven or the like, and is configured so that the tip thereof reaches close to the surface of the contents by being folded flat toward the other side, and the aluminum foil is configured to face the inside of the container.