JPH0547109Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a packaging body that has shape retention properties, and more specifically, to a soft packaging material that has a beautiful appearance without wrinkles on the surface. The present invention relates to a package that has shape retention properties.

[Conventional technology]

Many materials are used as packaging materials when transporting, storing, or distributing goods.In particular, since synthetic polymers were developed and put into practical use, plastic films and sheets have been used as packaging materials for goods. Widely used as a material. Paper is also widely used as a packaging material for goods. However, although these plastic films, sheets, and paper have excellent flexibility and can be easily bent into the shape of the item to be packaged, making them excellent packaging materials, on the other hand, they lack rigidity, so When packaging products that do not have a fixed shape, such as soft products, fluid or semi-fluid products, or mixtures of powder and granular materials, and even if the product has a fixed shape, there is a relatively large gap between the packaging material and the packaging material. When the package has a large space, it often has problems such as poor shape retention after packaging and wrinkles on the surface of the package, spoiling its appearance. For example, frozen desserts such as ice cream monaka and ice cream candy on a stick often have a relatively large space between them and the packaging material in order to preserve insulation. Because they are arranged randomly, they are particularly susceptible to wrinkles.

On the other hand, regarding the packaging of goods,
In a package in which the sides of both ends of a rectangular cylinder are folded inward, overlapped, and the top and bottom surfaces are integrally bonded, the top and bottom and left and right sides are overlapped to a predetermined width in a closed position, resulting in scratches. A square-shaped package with a protruding edge has been proposed (Japanese Utility Model Application Publication No. 1983-43737), and a package in which a reinforcing material is attached to a soft packaging material to impart shape retention has been proposed ( Jitsugan Showa 62-69693
issue).

However, in conventional packaging bodies, when soft packaging materials such as plastic films and sheets and paper are used, even if soft items are packaged, wrinkles do not occur and the beauty of the appearance is not impaired. It was difficult to maintain a certain shape.

[Purpose of the invention and summary of the invention]

Therefore, the purpose of this invention is to eliminate the drawbacks of conventional packaging, and to provide a packaging that does not cause wrinkles on the surface and has shape retention properties that can maintain the beauty of the appearance. There is. More specifically, this invention can easily and accurately improve the appearance of soft packaging materials without causing wrinkles on the surface, even if they are unable to maintain a certain shape on their own. It is an object of the present invention to provide a package having a shape retaining property that can be maintained, and to provide a package having a shape retaining property that allows the packaging work to be carried out easily and accurately.

In other words, the shape-retaining packaging of this invention is a flexible packaging in which both opposing side ends of a rectangular cylindrical body are folded inward, and the upper and lower ends are integrally glued or fused. In a package according to the present invention, at least one of the two pairs of opposing circumferential walls of the package includes a multilayer structure part formed by folding back from the top surface of the package and a multilayer structure part formed by folding back from the bottom surface of the package, and a multilayer structure part formed by folding back from the bottom surface thereof. The package is characterized by having a joining line at each side, and these multiple structure parts are connected with each other while being lined with a soft packaging material, and are formed so as to reach a pair of end faces in the length direction of the package. It is a package that has shape retention properties.

In the shape-retaining packaging of this invention, the multi-layer structure formed by folding back the soft packaging material is
It may consist of at least three layers of flexible packaging material. Further, the multiple structure portion can be formed on the entire peripheral wall of the package, and can be further integrated by adhesion or fusion. As a result, the soft packaging material in the package that has been given shape retention properties is reinforced as a result.

In addition, in the package with shape retention properties of this invention,
The multiple structure part formed by folding back the soft packaging material consists of an upper multiple structure part formed by folding back from the top surface of the package and a lower multi structure part formed by folding back from the bottom surface of the package. The structural part and the lower multilayer structure part can be in contact with each other at the joining line and can be lined with a soft packaging material, thereby simplifying the packaging body with shape retention properties. and can be manufactured accurately.

Furthermore, in the shape-retaining packaging of this invention, the packaging made of a soft packaging material is made by folding the opposite ends of the cylindrical body inside, and bonding them integrally with both ends of the top and bottom surfaces. It can be manufactured integrally by fusion bonding or the like, which makes it easy to manufacture.

The shape-retaining packaging of this invention is useful when packaging objects that cannot maintain a fixed shape, such as soft objects or mixtures of powder or granular materials, that is, fluid or semi-fluid products, and It is suitable for packaging goods with a relatively large space between it and the packaging material, and can be used in all industrial fields, but especially in the food field, ice cream cakes, ice cream sticks, Suitable for use in packaging frozen desserts such as

[Specific explanation of the idea]

As mentioned above, the "soft packaging material" in this invention is a packaging material that is highly flexible and does not have rigidity, and cannot be maintained in an upright state with only one layer of packaging material. Films or sheets of polyethylene, polypropylene, polyester, polyamide or other plastics or thin paper can be used.

In addition, the "multiple structure part" in this invention is
The soft packaging material is folded back to form at least three layers, the overlapping portions forming a band-shaped surface, and the soft packaging material constituting this,
If necessary, they are integrated by adhesion or fusing to each other, and as a result, the side walls and/or upper and lower surfaces of the package are reinforced.

The "joining line" in this invention is a straight line between the folded part of the multi-layered structure formed by folding back the soft packaging material from the top surface of the package and the folded-back part of the multi-layered structure formed by folding it back from the bottom surface. At the joining line, which is a straight line formed by joining, the multiple structure parts are connected by a single piece of soft packaging material.

Furthermore, in the drawings of the folds in this invention, dotted lines indicate folds that are folded inward, and dashed lines indicate folds that are folded outward.

An example of the implementation of the shape-retaining package of this invention is shown in FIGS. 1 to 5, FIGS. 6 and 7, and FIGS. 8 to 10.

In the drawings, 10 is a packaging body with shape retention properties, 11 is a soft packaging material, 12 is a sealing part, 1
3 is a multilayer structure part, 14 is an adhesive part, 15 is a fold folded inward, 16 is a fold folded outward, 1
7 is a fold of the seal portion, and 18 is a joining line of the multiple structure portion 13.

First, let us explain the examples shown in Figures 1 to 5.
Figure 1 shows a packaging body 10 with shape retention properties of this invention.
2 is a perspective view of an example of a rectangular parallelepiped implementation, FIG. 2 is a developed view of a soft packaging material 11, and FIG.
4 is a developed view of the soft packaging material 11 in which the multiple structure portion 13 is formed, FIG. 4 is a cross-sectional view taken along line A-A in FIG. 1, and FIG.
2 is a sectional view of FIG.

Package 10 shown in FIG. 1 with shape retention properties
can be produced by the following procedure.

After the folds 15 and 15' in FIG. 2 are folded inward, they are expanded to form folds to be folded inward. Next, after folding the fold 16 outward, it is expanded to form a fold to be folded outward. Next, the inward folds 15 and the outward folds 16 are sequentially folded to produce the soft packaging material 11 in which the multilayer structure portions 13 shown in FIG. 3 are formed.

Next, the multiple structure portion 13 shown in FIG.
The contents of the package (not shown) are placed in the center of the soft packaging material 11 that has been formed, the folds 15 are bent to form the sides of the multi-layered structure part 13 and the top surface of the soft packaging material 11, and the adhesive part 14 is When glued together, the contents of the package (not shown) become a rectangular tube-shaped soft packaging material.

11 (not shown)
is created.

Next, the contents of this package are placed in the center of a rectangular tube-shaped soft packaging material 11 (not shown), and the folds 17 of the seals on both sides of both end portions are folded inward, as shown in FIG. When stacked and sealed as shown in the cross-sectional view, a package 10 with shape retention properties shown in FIG. 1 is formed.

This package 10 is wrapped with a soft packaging material 11, and a multi-layered structure portion 13 is formed on the side wall surface of the package 10.
Since it forms, its overall shape can be maintained by the multi-structured portions 13 on both sides and the contents of the package (not shown). Further, there is a joining line 18 at the center of the multiple structure parts 13, 13, but as shown in FIG. 4, this joining line 18 is connected by only one piece of the soft packaging material 11. Therefore, in the final stage of packaging, the fold 17 of the sealed portion 12 can be folded inward, overlapped, and sealed to form the sealed portion 12 easily and accurately.

Moreover, the packaging body 10 provided with shape retention properties of this invention
can also be made by the alternative method shown below.

The folds 15 of the soft packaging material 11 forming the multilayer structure portion 13 shown in FIG. Then, the adhesive portion 14 is bonded to form a rectangular tube-shaped soft packaging material 11. When the folds 17 of the sealing portions on both sides of one end of this rectangular tube-shaped soft packaging material 11 are folded inward, and the folds 17 are stacked and sealed as shown in FIG. 5, the rectangular tube-shaped soft packaging material is A bag-shaped soft packaging material 11 (not shown) is made by sealing one end of the material 11 with a seal portion 12 and opening the other end.

When the contents of the package are poured into the open end of the bag-like soft packaging material 11 and the open end is sealed in the same manner as described above, a package 10 having shape retention properties as shown in FIG. 1 is produced.

This alternative package 10 is suitable for packaging when the contents of the package are soft, powdery, or liquid, and cannot maintain a fixed shape by themselves. In this case, even if the contents of the package cannot maintain a certain shape by themselves, the overall shape of the package 10 is determined by the multi-layer structure portions 13 on both sides and the contents of the package filled inside. It is possible to maintain a certain shape by

Another example of the shape-retaining packaging 10 of this invention, in which the upper and lower surfaces have multiple structure parts 13, is shown in the cross-sectional view of FIG. 6 and the cross-sectional view of the sealing part 12 in FIG. It can be made as follows. Another example of its implementation, in which both side surfaces and both upper and lower surfaces are multilayer structure parts 13, is shown in the perspective view in FIG. 8, the cross-sectional view in FIG.
It can be as shown in the cross-sectional view of the seal portion 12 in FIG. The packaging body 10 imparted with these shape retention properties can be packaged in the same manner as described above.

Another example of the implementation of the packaging body 10 with shape retention properties of this invention, in which both side surfaces and both upper and lower surfaces are multilayered structural parts 13, is shown in FIGS. 8, 9, and 10. The shape retention of the package 10 is further improved since all four sides of the package 10 are multi-layered structure portions 13 and have a reinforced structure.

The packaging material 11 in these multiple structure portions 13 in the packaging body 10 provided with shape retention properties of this invention
may be bonded or fused together by adhesive or by heat sealing, thereby making them more rigid;
Furthermore, it can be made easier to package.

[Effect of idea]

As explained in detail above, the package of this invention is suitable for packaging contents that do not have a fixed shape, and contents that have a fixed shape but have a space between them and the packaging material 11. There is.

Since there are no wrinkles on the surface of the packaging material 10, the appearance is beautiful, and even if the packaging material is printed on the outside or inside surface, the printing is clear.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an example of the implementation of a packaging material with shape retention properties of this invention, Fig. 2 is a developed view of the packaging material, and Fig. 3 is a packaging material formed with multiple structural parts. FIG. 4 is a sectional view taken along line A-A in FIG. 1, and FIG. 5 is a sectional view of the seal portion thereof. FIG. 6 is a cross-sectional view of another example of implementing the shape-retaining packaging of this invention,
FIG. 7 is a sectional view of the seal portion. FIG. 8 is a perspective view of another example of implementing the shape-retaining packaging of this invention, and FIG.
10 is a sectional view taken along line -A, and FIG. 10 is a sectional view of the seal portion thereof. 10...Packaging body, 11...Soft packaging material, 12
...Seal part, 13...Multiple structure part, 14...
...Adhesive part, 15...Fold, 15'...Fold, 1
6...Fold, 17...Fold, 18...Joining line.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a package made of a soft packaging material in which both ends of opposing sides of a rectangular tube are folded inward and both ends of the top and bottom surfaces are integrally glued or fused. , consisting of multiple structural parts formed by folding back from the upper surface of the packaging body on at least one pair of two pairs of opposing peripheral walls of the packaging body, having a joining line between them, and these multiple structural parts having a soft 1. A packaging body imparted with shape retention, characterized in that multiple structural parts connected while being lined with a packaging material are formed so as to reach a pair of end faces in the longitudinal direction of the packaging body. (2) Claim 1 of the utility model characterized in that the multilayered structure portion formed by folding back the soft packaging material is formed on the entire peripheral wall of the packaging body.
A package that has shape retention properties as described in Section 1. (3) The utility model registration claim set forth in claim 1 or 2, characterized in that the multi-layer structure formed by folding back a soft packaging material is integrally glued or fused. Packaging with shape retention properties.