JPH0322153Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) This invention relates to containerized tofu.

(Prior art) Tofu in containers currently on the market is stored in a plastic container body with a flange formed at the top opening, and the opening is covered with a cover sheet and the flange is heated. It is formed by wearing.

With the diversification of packaged tofu products, products with sauce-containing bags attached to these products have recently appeared on the market. In this case, since the container itself stores tofu and is sealed with a cover sheet, the bag containing the sauce is wrapped together with the container of tofu in a separate packaging container, or is attached to the container with adhesive tape. There is.

However, when wrapping the sauce-containing bag together with the packaged tofu in a separate packaging container, a separate packaging container is required, which leads to high costs and requires a wrapping operation. Furthermore, when adhesive tape is used, there is a problem that the sauce-containing bag may separate from the container while the product is being transported or placed at a store.

Therefore, for example, as described in Japanese Utility Model Application Publication No. 56-53058, it is possible to attach the bag body to the container body by heat fusion (a problem that the invention aims to solve). However, attachment by heat fusion is not possible. , not easy to adapt to automation. In other words, in order to achieve good thermal fusion, the melting points of the container body and the bag must be approximately the same; if the melting points are approximately the same, the thin bag will melt and the attachment condition will deteriorate. There are conflicting issues.

The present invention has been made with the aim of solving the above problems.

(Means for Solving the Problems) That is, the present invention stores tofu in a plastic container main body having a flange formed at the top opening, covers the opening with a cover sheet, and furthermore, the container main body is covered with a cover sheet. A tofu packaged in a container formed by heat-sealing a bag body, and as a constituent material of the bag body containing sauce,
Using a laminate of a sheet-like film having a melting point similar to that of the container body and a laminate sheet having a higher melting point than the sheet-like film, the sauce-containing bag is folded in half with a portion of the laminate remaining. The structure is such that a sheet-like film is heat-sealed, and the remaining surplus pieces are heat-sealed to the container body.

(Function) According to the above configuration, the high melting point laminate sheet does not melt during heat fusion and maintains the shape of the bonded part,
Contributes to achieving good thermal fusion.

(Example) The present invention will be described below based on an example shown in the drawings.

Fig. 1 is a longitudinal cross-sectional view showing a tofu packaged in a container according to the present invention, and Fig. 2 is a perspective view of the same. Specifically, the following sauce-containing bag body is attached to the flange of an ordinary container of tofu in which tofu 3 is stored in a container body 1 made of polystyrene and the opening thereof is covered with a cover sheet 4. 5 is heat-sealed.

The sauce-filled bag 5 is made of a polystyrene sheet film 51 laminated with a polyester laminating sheet 52 having a high melting point, and folded in half with a portion of the laminate remaining. The sauce-containing bag body 5 has a structure in which both sides and the folded tip overlapping portion 53 are heat-sealed, and the bag body 5 has a structure in which the sheet-like film 51 side of the surplus piece 51a remaining at the tip of the tip overlapping portion 53 is attached to the container body 1. It is fused to.

That is, since the container body 1 and the film 51 are made of the same plastic material, they can be thermally fused together. Of course, as long as heat fusion is possible, it is not necessary to make the container body 1 and the film 51 of the same plastic material, and it is sufficient to use plastic materials having similar melting points. According to the inventor's experiments, in addition to the above examples,
Although the laminating sheet 52 is made of polyester, it has been confirmed that even when polypropylene is used for the container body 1 and the film 51, a good fusion state can be obtained. This is considered to be because the laminating sheet 52 exists as a shape retaining material during heat fusion.

In the embodiment, the sauce-filled bag 5 is heat-sealed to the left and right back surfaces of the collar 2, but the present invention is not limited to this, and can be attached to any arbitrary location on the collar.

(Effects of the invention) As explained above, according to the invention, the laminating sheet acts as a shape retainer during heat fusion, and as a result, the state of fusion to the container body is improved. This has the excellent advantage that the heat fusion process can be automated.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view showing a container of tofu according to the present invention, and FIG. 2 is a perspective view of the same. 1...Container body, 2...Brim part, 3...Tofu, 4
...Cover sheet, 5...Sauce-containing bag body, 51...
...Sheet film, 52... Sheet for lamination, 6... Sauce.

Claims (1)

[Claims for Utility Model Registration] Storing tofu in a plastic container body with a flange formed on the top opening, covering the opening with a cover sheet, and heat-sealing a sauce-filled bag body to the container body. A laminate of a sheet-like film having a melting point similar to that of the container body and a laminate sheet having a higher melting point than the sheet-like film is used as a constituent material of the sauce-containing bag. , the sauce-containing bag has a structure in which the laminate is folded in half with a portion remaining and a sheet-like film is heat-sealed, and the remaining surplus piece is heat-sealed to the container body. Tofu in a container.