JPH0411985Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention has excellent shape retention, water resistance, oil resistance,
The present invention relates to an easy-to-open, shape-retaining sealed container that has excellent sealing properties such as gas barrier properties and is easy to open.

(Prior art) In recent years, so-called half-baked crepes and half-baked cakes have been produced and packaged in large-scale factories of confectionery companies, etc., put through the distribution process, and sold in large quantities at supermarkets, food stores, etc. . Regarding the packaging of these confectionery products that are placed in the distribution process, these confectionery products are inherently prone to losing their shape even with the slightest external force, etc., and are also prone to spoilage. There are a number of points that must be paid special attention to, such as the need for beautiful printing on the surface in order to increase sales efficiency and sales effectiveness.

Therefore, packaging as illustrated in FIGS. 8A, 8B, and 8C has generally been used.

That is, as shown in FIG. 8A, confectionery M is filled into a tray 100 formed by vacuum forming or the like. Filling is performed by dropping the confectionery M onto the tray 100 moving on a belt conveyor using a filling machine. Next, as shown in Figure 8B, the confectionery M
The entire tray 100 filled with
0 and seal it. Next, as shown in FIG. 8C, the sealed bag 200 is placed in a paper box 300 whose surface is beautifully printed to complete the packaging.

In this packaging, one confectionery M is first filled into each space partitioned by a partition 110 provided in the tray 100, as shown in FIG. 8A. Therefore, even if the tray 100 is tilted during transportation, etc., the confectionery M will not be misaligned within the tray 100 and the confectionery M will not lose its shape. In addition, side walls 120 around the tray 100
is set higher than the height of the confectionery M, so that when the confectionery M is stored in the bag body 200, as shown in FIG. This prevents the applied thiokolate and the like from adhering to the inner surface of the bag body 200.
Moreover, by making the height of the side wall 120 larger than the height of the confectionery M, the bag body 20 can be
Even if the top plate 310 of the paper box 300 is slightly dented due to an external force being applied to the paper box 300 while the confectionery M is stored in the paper box 300 and transported, the impact from the top plate 310 causes the confectionery M This prevents the material from losing its shape.

In addition, in such packaging, generally confectionery M
Confectionery M
The excessive dissipation of moisture, oil, etc. from the confectionery M causes a deterioration in the flavor of the confectionery M, which is not desirable. In addition, in such packaging, a portion of the confectionery M is impregnated with alcohol in order to prevent the propagation of bacteria inside the confectionery M, prevent spoilage of the confectionery M, and extend the shelf life of the confectionery M. Alcohol powder may be mixed into M, but it is also necessary to prevent these alcohol components from becoming gas and dissipating. Therefore, in this packaging, the tray 100 filled with confectionery M is
The bag 200 is sealed and housed in a bag 200 that has excellent sealing properties such as water resistance, oil resistance, and gas barrier properties. As the material for the bag body 200, a sheet-like material having a plastic layer with high barrier properties, etc. is used, and a material having a plastic sheet-like material layer coated with aluminum is also used.

In addition, in this packaging, if it is to be sold only after being stored in the bag body 200 as shown in FIG. 8B, even if the surface of the temporary bag body 200 is printed, Since printing is performed on so-called flexible packaging materials, there are limits to the number of colors, accuracy, etc., and it is difficult to sufficiently increase the product value. In addition, in order to protect the confectionery M from external forces during transportation and to completely prevent it from losing its shape, the tray 100 alone cannot be said to be strong enough. In this case, the tray 100 becomes quite expensive. If the bag body 200 is provided with sufficient water resistance, oil resistance, gas barrier properties, etc., and the tray 100 is provided with sufficient strength, the confectionery M will not be fully visible from the outside. I often get used to it. Therefore, it becomes necessary to print and display the delicious appearance of the stored confectionery M on the surface of the bag body 200, but as mentioned above, there are technical limits to printing on the bag body 200. It is not always easy to sufficiently reproduce the delicious appearance of M. Therefore, in this conventional packaging, the bag body 200 is housed in a paper box 300 made of paper that has high printability and considerable rigidity, thereby increasing the sales effect and preventing the confectionery M from losing its shape. We are trying to prevent this.

(Problems to be solved by the invention) Conventional packaging for half-baked crepes, half-baked cakes, etc., as shown in Figure 8 A, B, and C, involves a large number of packaging steps, and the problem is that the packaging takes too much time and money. It was hot. Furthermore, with such conventional packaging, it is virtually impossible to individually package the confectionery M, which is inconvenient for both manufacturers and sellers as well as consumers.

In other words, the conventional packaging shown in FIG. However, in order to achieve these objectives, Tray 1
00, the bag body 200, and the paper box 300, three types of members are required, and procuring these members requires considerable material costs, manufacturing costs, etc. In addition, confectionery M made using each of these components
The filling and packaging process itself involves a large number of steps and is complicated, partly due to the large number of parts used, and requires considerable effort and expense. Therefore, a considerable amount of effort and expense is required from the procurement of the members to the completion of packaging, and there is a problem in that the packaging as a whole requires too much effort and expense.

In addition, the packaging shown in Figure 8 A, B, and C is for wrapping a large number of confectionery M, for example, 8 or 10 pieces, at the same time, and even when such a large number of pieces are packaged at the same time, the packaging is time-consuming. From a profit standpoint, it is impossible to package each confectionery M in the packaging shown in Fig. 8 A, B, and C, since this would be too costly. Therefore, if the packaged item is, for example, a pack of 10 pieces, a certain consumer
If a consumer only wants one item, he or she has to choose between buying 10 items or none at all, which is inconvenient. Also, one bag body 2
For example, 10 sweets M are covered and protected in 00. Therefore, if a consumer opens the bag 200 to eat only one piece, the remaining nine pieces will no longer be protected by the bag 200 having barrier properties. This caused the inconvenience of having to eat the remaining nine pieces in a hurry.

On the other hand, it is difficult for manufacturers and sellers to sell Confectionery M to people who feel inconvenienced as described above. Therefore, there was a problem in that it was difficult to significantly increase the sales of Confectionery M.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides an easy-open shape-retaining sealed container using a sheet-like sheet of uniaxially stretched plastic inside a layer of rigid paperboard. A cylindrical body having a material layer and a sheet-like material layer with excellent sealing properties such as water resistance, oil resistance, gas barrier properties, etc., and a protection provided in order at each extension from both ends of the body. It comprises a shape part and a sealing part, the sealing part is formed by pasting the opening edges of the extension part to each other in a narrow strip shape, and the shape-retaining part has an apex at the end point of the side of the sealing part. A triangular side surface surrounded by a substantially isosceles triangular fold, a curved side surface adjacent to the outside of the bottom of the triangular side surface, and a region extending between the curved side surfaces and between the triangular side surfaces. A gentle slope part is provided, and two cut lines are made in the paperboard layer of the body part,
An unsealing zipper portion is provided parallel to the stretching direction of the uniaxially stretched plastic sheet layer, and a gripping piece is provided on the outer edge of the unsealing zipper portion.

(Function) In the easy-open shape-retaining sealed container of this invention,
The rigidity of the paperboard, the triangular side part forming a substantially flat plate shape, and the curved side part sticking out into a curved surface shape,
In addition, the triangular side portion and the curved surface portion press the gently sloped portion from both sides to maintain the gently sloped shape, thereby firmly retaining the shape of the shape retaining portion.

In addition, the container body is highly sealed due to the presence of the sheet-like material layer with excellent sealing properties such as water resistance, oil resistance, and gas barrier properties, and the bonding of the sealing portion.

In addition, the sheet-like layer of uniaxially stretched plastic is easily broken in the stretching direction, and two score lines are preliminarily formed on the paperboard, which is the most difficult to break in the body, in line with this stretching direction. By keeping it in place, the body can be easily and cleanly broken along the two score lines.

(Example) An example of the present invention will be explained with reference to figures.
The figure is a perspective view of an easily openable shape-retaining sealed container A according to the present invention. This easily openable shape-retaining sealed container A is manufactured using a blank plate B shown in FIG. FIG. 2 is a plan view of blank board B seen from the front side.
This blank board B has a layer structure as shown in FIG. In FIG. 3, the upper side represents the front side of the blank board B. As shown in the figure, the blank board B includes, from the front side, a paperboard 1, a polyethylene sheet layer 2, a uniaxially stretched polyethylene sheet layer 3, a polyethylene sheet layer 4, an aluminum foil 5, It consists of six layers including a sheet-like layer 6 of polyethylene. Of these six layers, the paperboard 1 is for imparting shape retention to the assembled easy-open, shape-retaining sealed container A, as well as imparting printability for beautiful printing on the surface of the container body. A paperboard having a rigidity depending on the degree of shape retention required is used. The uniaxially stretched polyethylene sheet layer 3 is for making it easier to open the assembled easy-open shape-retaining sealed container A in the stretching direction, and the polyethylene sheet layer 2 is made of paperboard 1 and the uniaxially stretched This is for adhering the polyethylene sheet material layer 3 that has been prepared. The aluminum foil 5 is for imparting sealing properties such as water resistance, oil resistance, and gas barrier properties to the assembled easily openable shape-retaining sealed container A, and the polyethylene sheet layer 4 is uniaxially stretched. This is for bonding the polyethylene sheet layer 3 and the aluminum foil 5. Further, the polyethylene sheet layer 6 is used for heat sealing the so-called body sticking part and sealing part during assembly and use, which will be described later.

As mentioned above, FIG. 2 is a plan view of the blank board B, and in this figure, the stretching direction of the uniaxially stretched polyethylene sheet layer 3 is the transverse direction. Further, in this embodiment, the grain of the paperboard 1 is also oriented horizontally, and is parallel to the stretching direction of the sheet layer 3 of uniaxially stretched polyethylene.

As shown in FIG. 2, the blank board B has a rectangular overall shape, and has fold lines 7 and 8 provided in the horizontal direction along each of the upper and lower edges. Due to the folding lines 7 and 8, the blank board B has sealing parts 9 and 10 outward from the folding lines 7 and 8, and
It is divided into a storage section 11 in between. The upper sealing part 9 has two vertical fold lines 12 and 13.
are provided at intervals, and two vertical folding lines 14 and 15 are provided on the lower sealing part 10, respectively.
2 and 13 are provided. The fold lines 12 and 13 are formed so that when the blank board B is rolled up laterally and its side edges are pasted together to form a cylindrical body, they face each other across the central axis of the cylindrical body. It is located in a suitable position. Of the storage section 11, the crease 7
A fold line 17 is placed near the intersection 16 of the and fold line 12.
A fold line 17 is provided in parallel with. This fold line 1
Folding lines 18, 18 are also provided between both ends of 7 and the intersection point 16, and these folding lines 18, 18 and the folding line 17 form a triangular side portion 19 having a substantially isosceles triangular shape with the intersection point 16 as the apex. Compartments are formed. Similarly, a triangular side surface 20 whose apex is the intersection of the fold line 7 and the fold line 13 is defined by the fold line 17 and the fold lines 18 and 18, and also between the fold line 8 and the fold lines 14 and 15. Triangular side portions 21 and 22 having vertices at the intersections of are defined by the fold line 17 and the fold lines 18 and 18, respectively. Furthermore, among the above fold lines, fold line 7,
8 and 17 are so-called valley fold creases, and creases 12, 13, 14, 15, and 18 are so-called mountain fold creases. In addition, two parallel cut lines 23 and 24 are provided in the paperboard 1 in the approximate center of the storage section 11, and the part sandwiched between the cut lines 23 and 24 is the opening zipper part. It is said to be 25. As mentioned above, in FIG. 2, the stretching direction of the uniaxially stretched polyethylene sheet layer 3 and the grain of the paperboard 1 are both horizontal, so the score lines 23 and 24 are uniaxially stretched. It is parallel to both the stretching direction of the polyethylene sheet layer 3 and the paper grain of the paperboard 1.

Furthermore, small notches 26 and 26 connected to the cut lines 23 and 24 are provided near the left end of the zipper part 25 for opening, and a portion between the small notches 26 and 26 is used as a gripping piece 27.

For assembly and use, first, as shown in FIG. The inner surfaces of the left side edge 29 are overlapped, and the right side edge 28 and the left side edge 29 are heat-sealed using the polyethylene sheet layer 6 to perform so-called body bonding. Next, as shown in FIG. 5, the inner surfaces of the sealing section 10 are brought into contact with each other while folding the lower sealing section 10 along the fold line 8 and the fold lines 14 and 15, and the inner surface is sealed with the polyethylene sheet layer 6. Heat seal the comrade. This closes the lower end. Next, as shown in FIG. 6, when the triangular side parts 21 and 22 are pressed from the outside, the triangular side parts 21 and 22 become substantially flat above the fold lines 14 and 15, respectively, and each triangular side part 21 , 22 are curved to form curved side surfaces 30, 31.
becomes. At the same time, the area extending from the portion between the triangular side portions 21 and 22 to the portion between the curved side portions 30 and 31 becomes gentle slope portions 32 and 33.
These triangular side parts 21 and 22 and the curved side part 3
0 and 31 and the gentle slope portions 32 and 33 constitute a shape retaining portion 34 that retains the shape of the vicinity of the lower end of the container body.
This shape retaining portion 34 is a paperboard 1 having rigidity in the material.
In addition, each of the triangular side portions 21 and 22 extends the curved side portions 30 and 31 adjacent to each other upwardly into a curved surface shape, and the triangular side portion 2
1, 22 and the curved side parts 30, 31 form the gentle slope part 3.
By pressing 2 and 33 from both sides to maintain a gently sloped shape, the shape of the lower end portion of the container body is firmly maintained. When the assembly is completed to the state shown in FIG. 6, a stored article such as a half-baked cake is dropped from above and stored through the upper opening. Next, after heat-sealing the upper sealing part 9, the triangular side part 1 is sealed.
9 and 20 are pressed to form the upper shape retaining portion 35, and the assembly is completed (FIG. 1). Heat seal the sealing part 9,
And the shape retention part 3 by the pressure of the triangular side parts 19 and 20
The formation etc. of 5 are the same as those described regarding the lower sealing part 10 and the lower shape retaining part 34. Both the upper and lower ends of the stored item enter the shape retaining parts 35 and 34, respectively, but the central part of the stored item enters the shape retaining parts 34 and 35.
It enters the body 36 between the This body part 36 has a substantially cylindrical shape, and the upper and lower ends of the body part 36 are strongly kept in shape by the shape retaining parts 35 and 34, and the material is made of paperboard having rigidity. 1, the shape is firmly retained.

To open the package, as shown in FIG. 7, by grasping the gripping piece 27 and pulling the opening zipper part 25, the body part 36 is broken along the cut lines 23 and 24. The opening zipper part 25 can be separated from the body part 36. This opening zipper part 25
In this embodiment, even if the sheet deviates from the score lines 23 and 24 and is broken, in this embodiment, the paper grain of the paperboard 1 and the stretching direction of the uniaxially stretched polyethylene sheet layer 3 Since both are parallel to the score lines 23 and 24, the only way it will come off is that it will come off partially near the score lines 23 and 24, but it will not deviate significantly from the score lines 23 and 24. do not have. After removing the zipper part 25 for opening, the upper part of the container body divided into upper and lower parts is removed from the stored article, and then the stored article is taken out from the lower part.

In addition, the delivery of containers from container manufacturers to container users who store confectionery, etc. inside the containers for sale uses the round tube delivery method, in which the containers are delivered in a cylindrical body with a body attached, as shown in Figure 4. It is also possible to move the second
As shown in the figure, a winding delivery method may be used in which the blank board is delivered in a rolled state before being cut into individual blank boards B.

The present invention is not limited to the above-mentioned embodiments, and the blank board has a sheet-like layer of uniaxially stretched plastic on the inside of the paperboard, and has sealing properties such as water resistance, oil resistance, and gas barrier properties. The other layer configurations may be arbitrarily determined as long as the layer has a rich sheet-like material layer.

Examples of the uniaxially stretched plastic sheet layer include, in addition to the uniaxially stretched polyethylene sheet layer shown in the embodiment, a uniaxially stretched polypropylene sheet layer.

In addition, the sheet material layer with high sealing properties such as water resistance, oil resistance, gas barrier properties, etc. is not limited to aluminum foil, but may also be a plastic sheet material with high barrier properties or a laminate thereof. Alternatively, it may be a sheet of plastic coated with aluminum.

Further, the body bonding may be performed by bonding the inner surfaces of the left and right side edges together.

In addition, by aligning the grain of the paperboard with the stretching direction of the uniaxially stretched plastic sheet layer, the cut line of the opening zipper can be made into a so-called half-cut line or perforation line. It may be replaced with a part that is easier to break in a certain direction than the part.

Further, the gripping piece may be a piece in which the end of the zipper part for opening protrudes from the side edge of the container body.

The opening zipper part may be provided anywhere on the body, and the crease between the sealing part and the shape-retaining part (storage part) may be omitted.

Moreover, the stored articles are not limited to half-baked crepes and half-baked cakes, but may be anything.

In addition, storage of stored items is not limited to dropping from above, but cylindrical items with a body attached may be placed horizontally and stored from one side opening end, and in that case, heat sealing of the sealing part and The shape retaining portion may be formed on both sides at the same time.

(Effects of the invention) The present invention is constructed as described above, and includes a rigid paperboard in the material, and a container body and a body part.
The shape-retaining part is composed of a shape-retaining part and a sealing part, and the shape-retaining part has a triangular side part surrounded by a substantially isosceles triangular fold whose apex is the end point of the side of the sealing part, and a bottom part of the triangular side part. By providing the outwardly adjacent curved side surfaces and the gentle slope section extending from between the curved side surfaces to between the triangular side surfaces, the triangular side surface becomes approximately flat and the curved side surface is curved. The shape-retaining part is firmly retained by making it stick out in a planar shape, and the triangular side part and the curved side part press the gentle slope part from both sides to maintain the shape of the gentle slope. The shape of the body is also strongly maintained by the shape-retaining parts at both ends, and the rigid paperboard is included in the material, so that the container body as a whole is Strongly retained. Therefore, even if items that easily lose their shape, such as half-baked crepes or cakes, are stored and transported, the stored items will not lose their shape due to external forces received during transportation. do not have.

In addition, by providing two score lines in the paperboard of the body section parallel to the stretching direction of the uniaxially stretched plastic sheet layer, the body section can be easily cut without tearing the paperboard, which is difficult to break. The package can be opened and the uniaxially stretched plastic sheet layer can be torn along two score lines. Therefore, by simply gripping and pulling the gripping piece, the body can be easily broken along the two cut lines, the opening zipper part can be removed, and the container body can be opened. Moreover, since the package is easy to open, there is no possibility that the package will lose its shape due to fingers or the like hitting the package when opening the package. In addition, if the grain of the paperboard matches the stretching direction of the uniaxially stretched plastic sheet layer, the score lines can be aligned in a certain direction relative to other parts of the paperboard, such as half-cut lines or perforations. Even if the bag is made of a material that is easy to break, the bag can be opened easily by the opening zipper part, and the break in the body part can be prevented from deviating from the cut line to a large extent.

In addition, by including a sheet-like material layer with excellent sealing properties such as water resistance, oil resistance, and gas barrier properties in the material, and by bonding the open edges of both ends to each other in a narrow strip shape, the container Highly sealed body. Therefore, stored items are protected and have a long shelf life. for example,
If a part of the half-baked cake is impregnated with alcohol or mixed with alcohol powder to prevent spoilage, the alcohol will gasify over time, but in this invention, the gas in the container body is Due to its high barrier properties, the gasified alcohol remains inside the container. Therefore, half-baked cakes and the like are prevented from spoiling.

Furthermore, by using paperboard as the outer surface, beautiful printing can be applied to the surface, increasing sales effectiveness.

In addition, the structure is extremely simple, and only a single laminated sheet material is used, making it easy to manufacture and package products, and mass production and packaging can be performed at low cost. Therefore, packaging costs will not increase even if each product is packaged one by one. If products are packaged individually, it is convenient for consumers to buy as much as they want and consume as much as they want to consume. Therefore, the purchase quantity increases. On the other hand, manufacturers and distributors can increase sales volume.

[Brief explanation of drawings]

The figures represent one embodiment of the present invention, in which Fig. 1 is a perspective view, Fig. 2 is a plan view of the blank board seen from the front side, and Fig. 3 is a partially enlarged sectional view showing the layer structure of the blank board. Figures 4 to 6 are perspective views showing the state in the middle of assembly, Figure 7 is a perspective view showing the usage state, and Figure 8 is a perspective view showing the state in use.
Figures A, B, and C are end views for explaining conventional packaging for half-baked cakes, etc. 1...Paperboard, 3...Uniaxially stretched plastic sheet layer (uniaxially stretched polyethylene sheet layer), 5...High sealing properties such as water resistance, oil resistance, gas barrier properties, etc. Sheet-like material layer (aluminum foil), 7, 8, 12, 13, 14,
15, 17, 18... Crease, 9, 10... Sealing section, 11... Storage section, 19, 20, 21, 22...
...Triangular side part, 23, 24... Cut line, 25...
Zipper part for opening, 27... holding piece, 30, 31
...Curved side part, 32, 33...Gentle slope part, 3
4, 35... Shape-retaining part, 36... Torso.

Claims (1)

[Scope of utility model registration request] It has a sheet-like material layer of uniaxially stretched plastic inside a layer of rigid paperboard, and a sheet-like material layer with excellent sealing properties such as water resistance, oil resistance, gas barrier properties, and the above-mentioned uniaxial paperboard layer. A cylindrical body formed by rolling a stretched plastic sheet layer in the stretching direction, and a shape retaining part and a sealing part provided in order on each extension part from both ends of the body. The sealing part is formed by pasting the opening edges of the extension part together on the inner surfaces in a narrow strip shape, and the shape-retaining part is formed by folding a substantially isosceles triangular shape whose apex is the end point of the side of the sealing part. a curved side surface adjacent to the outside of the bottom of the triangular side surface; and a gentle slope section extending from between the curved side surfaces to between the triangular side surfaces; Two score lines are provided in the paperboard layer of the body part in parallel to the stretching direction of the uniaxially stretched plastic sheet layer to form an opening zipper part, and the opening zipper part is An easily openable shape-retaining sealed container with a gripping piece on the outer edge.