JPH11321926A - Packaging container material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate washing away of contents remaining on the outside of a fixed part after liquid stuff is solidified and a lid body is fixed to the flange of a container body, and facilitate peeling off of the lid body. SOLUTION: The packaging container material 1 comprises a container body 2 serving also as a molding container, in which liquid stuff is filled and solidified, and having a flange 4 on the upper end of the side of the container body 2. It also comprises a lid body 3 in a film form fixed to the flange 4 of the container body 2. In the case, the shape of the cross-section of the flange 4 of the container body 2 is substantially circular arc projecting toward a joined part 5 with the lid body 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a method for filling a liquid material,
Regarding the packaging container material which is suitable for the packaging of a substance to be coagulated, particularly jelly, pudding, gel food such as tofu,
The present invention relates to a packaging container material in which a liquid material is solidified, a lid is fixed to a flange portion of a container, and then the contents remaining outside a joint portion are easily washed and the lid is easily peeled off.

[0002]

2. Description of the Related Art As a lightweight packaging material for processed foods such as jelly, pudding, tofu, etc., a plastic packaging container material also serving as a molding container has been conventionally used. Many packaging container materials that have been used in the related art are obtained by injecting a contained substance in a liquid state into a container, solidifying the liquid, and then fixing and sealing a lid such as a plastic film on the upper surface. Therefore, the upper end of the container has a flange-shaped flange parallel to the lid, and the lid is fixed to the flange.

[0003] In the above-mentioned packaging container material, after the lid is fixed, the contents often remain on the outer side of the joint portion and need to be cleaned. Because the flange of the part is a flange shape parallel to the lid, there is almost no gap between the lid and the flange, it is difficult to clean,
It was easy to become insufficient. If the contents remain due to insufficient washing, they may cause decay or an unpleasant odor, which is a problem in displaying, storing, and selling the products.

Further, in the packaging container material as described above, the lid is fixed by sealing the film with an easy peeling property. In the case of a parallel flange, there is almost no gap between the lid and the flange, so that it is difficult to grasp the film and open the lid.

[0005]

DISCLOSURE OF THE INVENTION The present invention is suitable for packaging a substance to be coagulated after filling with a liquid material, in particular, a gel food such as jelly, pudding, tofu, etc.
An object of the present invention is to provide a packaging container material in which, after a lid is fixed to a flange portion of a container body, contents remaining outside the fixed portion are easily washed and the lid is easily peeled off.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a container having a flange at the upper end on the side, which also serves as a molding container for filling and solidifying a liquid material, and a film fixed to the flange of the container. The present invention provides a packaging container material comprising a lid having a shape of a cross section, wherein a cross-sectional shape of a flange portion of the container has a substantially arc shape protruding toward a joint with the lid.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the following examples. FIGS. 1 to 4 show examples of the structure of the packaging container material of the present invention. FIG. 1 is a cross-sectional view showing a shape of a packaging container material which is an example of the embodiment of the present invention, and FIG. 2 is an enlarged cross-sectional view near a flange portion of the packaging container material of FIG.
3 is an external perspective view of the packaging container material of FIG. 1, and FIG. 4 is a diagram showing an operation when the packaging container material of FIG. 1 is washed and when the lid is opened.

As shown in FIGS. 1 and 2, the packaging container 1 of the present invention has a flange 4 of a body 2 having a cross-sectional shape with a cover 3 (fixed portion 5), that is, above the body 2. It is characterized in that it has a substantially arc shape convex toward.

As shown in FIG. 4, the contents 6 are filled in the container 2 in a liquid state and solidified [FIG. 4 (a)].
The film is sealed with a sealant so as to have easy peeling properties, thereby forming a lid 3 (FIG. 4B). At this time, the stored matter remains on the surface of the flange portion outside the fixing portion 5 (residue 8). When water or the like (9) is sprayed from the container side direction, the lid 3 and the body flange portion are discharged. Since there is a gap 7 opened toward the side of the container, the residue 8 attached to the surface of the flange portion is easily washed and removed [FIG. 4 (c)]. When the lid is opened, the lid 3
The lid can be easily removed by simply grasping the end of the cover [Fig.
(D)].

[0010] In the packaging container material of the present invention, the cross-sectional shape of the flange portion is convex toward the joint portion with the lid, and the container side portion is located between the lid and the body flange when the lid is closed. If a gap that opens toward the direction is formed,
The shape is not particularly limited. That is, the substantially arc shape is
As shown in FIG. 5, a polygonal shape close to an arc is also included.
Preferably, it has a circular arc shape. Further, since a gap may be formed between the lid and the body flange outside the joint of the lid, the flange on the inner side of the lid joint has a planar shape parallel to the lid. There may be.

In the present invention, it is preferable that the entire flange portion has the above-described shape from the viewpoint of cleanability, but only a part of the flange portion may have the above-described shape.

In the present invention, the size of the substantially arcuate shape of the flange portion is appropriately set in accordance with the size and shape of the packaging container material, the thickness and physical properties of the constituent materials, the form of the stored material, and the intended use. Even if the size of the substantially arc-shaped flange portion is too small or too large with respect to the size of the packaging container material, it becomes difficult to obtain the effect of the present invention.

For example, a thickness 0.4 conforming to the standard for food packaging
The inner dimensions produced by vacuum-forming 5 mm calcium carbonate-filled polypropylene are 55 mm square on the bottom and 3 mm high.
In the case of a packaging container material body having the shape shown in FIGS. 1 to 3 having a substantially rectangular parallelepiped shape of 0 mm, the cross-sectional shape of the flange portion is 5 mm in diameter.
It is preferable to make the shape of a semi-circular arc.

The container in the packaging container material of the present invention can be formed of various plastics, paper, metals such as aluminum, etc., and it is preferable to use a rigid or semi-rigid thermoplastic plastic molding material. These plastic molding materials are processed into a film or sheet, and then thermoformed by a vacuum molding method, a pressure molding method, or the like, or the molding material is directly injection-molded to form a packaging container material. It can be easily mass-produced. further,
As the plastic molding material, for example, a material mainly composed of various thermoplastic resins such as a vinyl chloride resin, a polyolefin resin, a polystyrene resin, a polyester resin, a polyacrylic resin, and a polycarbonate resin is used. be able to. Further, a filler such as calcium carbonate may be added for controlling the rigidity.

The lid according to the present invention is fixed to the vessel,
It is not particularly limited as long as it is a film-like material capable of sealing the inside of the packaging container material and providing easy peelability, and various plastics or elastomer-based films, metal foils such as aluminum, paper, and laminates thereof. Is mentioned.

In the packaging container material of the present invention, the method of fixing the lid is not particularly limited as long as the lid has a peeling property from the container after the fixing by an easy peel. For example, using an easy-peeling sealant or the like,
For example, a method of fixing by heat bonding or the like may be used.

Further, the packaging container material of the present invention is formed so as to form the shape of a closed container assembled therefrom, for example, various desired shapes such as a rectangular parallelepiped, a disk and a cylinder. Further, a configuration may be adopted in which the lid is placed on the lower side after storing and sealing the contents.

The packaging container material of the present invention may have another structure such as a reinforcing portion as long as the function of the present invention is not hindered.

[0019]

Since the packaging container material of the present invention has the above-described structure, the liquid material is solidified, the lid is fixed to the flange of the container, and the contents remaining on the outside of the joint are washed. In addition, the lid is easy to peel off, and is suitable for packaging a substance that solidifies after filling with a liquid material, particularly a gel food such as jelly, pudding, and tofu.

[Brief description of the drawings]

FIG. 1 is a sectional view showing the shape of a packaging container material as an example of an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of the vicinity of a flange portion of the packaging container material of FIG.

FIG. 3 is an external perspective view of the packaging container material of FIG. 1;

FIGS. 4 (a) to 4 (d) are diagrams showing the operation when the packaging container material of FIG. 1 is washed and when the lid is opened.

FIG. 5 is a diagram showing another example of the cross-sectional shape of the body flange portion.

FIG. 6 is a sectional view showing the shape of a conventional packaging container material.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Packaging container material of the present invention 1 'Conventional packaging container material 2, 2' Container 3, 3 'Lid 4, 4' Flange part 5 Fixing part 6 Contents 7 Void 8 Residue 9 Wash water

Claims (2)

[Claims] 1. A package comprising a container having a flange at the upper end of a side surface, which also serves as a molding container for filling and solidifying a liquid material, and a film-like lid fixed to the flange of the container. In the container material, a packaging container material is characterized in that a cross-sectional shape of a flange portion of the container has a substantially circular arc shape protruding toward a joint with a lid. 2. The packaging container material according to claim 1, which is used for food.