JP5920978B2 - Food package and manufacturing method thereof - Google Patents

Description

The present invention relates to a food packaging body made of a plastic film for packaging substantially triangular foods such as cooking breads and confectionery breads, and more particularly to a food packaging body suitable for foods having a small thickness such as cheesecake.

For example, Patent Document 1 discloses a food packaging body made of a plastic film as a packaging body of a substantially triangular food such as cooking bread or confectionery bread. Such a food packaging body is formed as a bag body by connecting two generally isosceles trapezoidal plastic sheets by welding or the like.

Such a conventional food package is usually manufactured by stacking two plastic films and fusing them along the oblique and upper sides of the leg trapezoidal shape. The two plastic sheets are connected by fusing. Thus, a bag body having an open lower side is formed. Then, an opening assisting belt such as a cut tape is provided along the center line of one plastic film. Further, an outer edge portion is provided on the bag body, and a cut is provided in the outer edge portion.

Triangular food is put into the bag, and the opening of the plastic sheet is folded and sealed. At this time, the cut tape appears along the side surface of the triangular pillar-shaped food. The film starts to break when the outer edge is cut, and is further opened with a cut tape.

Utility Model Publication No. 7-8238

Conventional food packaging bodies such as those described in Patent Document 1 are mainly used for thick foods such as sandwiches among triangular columnar foods. In particular, in the case of a sandwich, since 2 to 3 sets of sandwiches are put in one package, the thickness of the portion taken out at a time is small, and it can be taken out even with a relatively small opening.

However, in the case of confectionery such as cheesecake, since only one is contained in one package, all the contents are taken out at one time. Therefore, it is necessary to provide a wide opening assisting band that covers almost the entire width of the side surface by, for example, providing a plurality of cut tapes in parallel. However, since the notch of the outer edge (top) must be formed outside the width of the opening assistance band, the opening assistance band cannot be provided to the full width of the side surface of the bag. Therefore, in the packaging for cheesecake, a packaging body having a size considerably larger than the size of the cheesecake is used. This is a wasteful use of the material, and the appearance is poor in a storage state with a large gap.

In addition, in the case of rare cheese cakes, even if only one side is opened, it is difficult to take out the contents from there. It is more convenient to take out the food or eat it with a spoon or the like by removing the upper surface than the side surface. An object of the present invention is to provide a food packaging body made of a plastic sheet that can easily package a substantially triangular food product and can open the upper surface side.

In order to solve the above problems, the food packaging body of the present invention has an external plastic sheet material folded in half, and an internal folded plastic sheet material provided in the external plastic sheet material,
The internally folded plastic sheet material has an isosceles triangular portion and is folded in two along its center line, and the sides of the external plastic sheet material and the sides of the internally folded plastic sheet material overlap each other. Connected in a state,
A top sealing portion is provided on the outer plastic sheet material on the apex side of the isosceles triangular portion of the inner folded plastic sheet material.

Furthermore, it is preferable that a knob portion is provided after the top sealing portion, and a notch for starting opening is formed in the knob portion.

The food packaging body of the present invention uses a plastic sheet raw material of a one-side gusset in which a folded portion is formed only on one side as a material, and forms a connection band by thermocompression obliquely from the side on the folded portion side, and a connection Cutting the outside along the band, and forming a top sealing portion substantially perpendicular to the connection band from near the tip of the connection band. Then, an outer plastic sheet raw material having a shape in which a belt-shaped plastic sheet is folded in two along the center line thereof, and a plastic sheet made of a material different from the outer plastic sheet raw material in a band shape having a narrower width than the outer plastic sheet raw material A plastic sheet original fabric of one side gusset is formed by connecting the inner folded plastic sheet raw material folded in two along the center line and overlapping the sides thereof, and this plastic sheet original fabric is used. You can also

The food package of the present invention can be packaged even if the food has a small thickness, and can be easily opened with the top surface opened.

It is a top view which shows a food packaging body. FIG. It is an expanded view which shows an internal folding plastic sheet material. It is a perspective view which shows the use condition of a food packaging body. It is a perspective view which shows the opening method of a food packaging body. It is a top view which shows the manufacturing method of a food packaging body.

EMBODIMENT OF THE INVENTION The form for implementing this invention is demonstrated in detail based on drawing. FIG. 1 is a plan view showing a food package, and FIG. 2 is a cross-sectional view taken along the line AA.

The food packaging body 1 includes an external plastic sheet material 2 and an internally folded plastic sheet material 3 provided in the external plastic sheet material 2. Both the outer plastic sheet material 2 and the inner folded plastic sheet material 3 are made of transparent plastic, but they may be the same material or different materials.

FIG. 3 is a development view showing the internally folded plastic sheet material. In the expanded state, the shape is generally an isosceles triangle. Here, following the base of the isosceles triangle portion 4, a rectangular rib 5 is provided. The internally folded plastic sheet material 3 is folded in two along the center line 15 of an isosceles triangle.

Next, the external plastic sheet material 2 will be described. The external plastic sheet material 2 also has a shape obtained by folding a line-symmetrical sheet into two along the center line. When viewed in a folded state as shown in FIG. 1, it has a lower side 6 along the fold line and a parallel upper side 7 that is the lower side 6. A side 8 perpendicular to the upper side 7 extends from one end of the upper side 7 to the end of the lower side 6, and a hypotenuse 9 inclined with respect to the upper side 7 extends from the other end of the upper side 7.

When the internally folded plastic sheet material 3 is folded in half, the oblique side 10 of the internally folded plastic sheet material 3 can be overlapped with the oblique side 9 of the external plastic sheet material 2. At this time, the side 11 of the rib of the inner folded plastic sheet material 3 overlaps the upper side 7 of the outer plastic sheet material 2. In this way, the connection band 12 is provided along the upper side 7 and the oblique side 9 of the outer plastic sheet material 2 with the inner folded plastic sheet material 3 sandwiched between the outer plastic sheet material 2 and the outer plastic sheet. The material 2 and the internally folded plastic sheet material 3 are connected. The connection band 12 can be formed, for example, by thermocompression bonding as will be described later. Furthermore, the top sealing band 13 is provided also from the lower end of the upper side 7 to the lower side 6 of the external plastic sheet material 2, and the external plastic sheet materials 2 are connected here. On the other hand, no connection band is provided on the side of the vertical side 8 and is open. Thus, a bag-shaped food package as shown in FIG. 1 is formed. At this time, the lower side 6 (folding line) of the outer plastic sheet material 2 and the folding line 15 of the inner folded plastic sheet material 3 are parallel to each other.

Furthermore, a knob portion 14 is provided following the top connection band 13. A cut 15 is formed in the upper part of the knob part 14 (the side where the connection band 12 is present).

Next, the usage method of this food packaging body 1 is demonstrated. FIG. 4 is a perspective view showing a use state of the food package. Open the mouth of the food package 1 and insert the food x. The present invention can also be applied to a relatively thin triangular columnar food. Here, food having a bottom surface of an isosceles triangle is suitable. Further, it may be a fan-shaped bottom surface having an external appearance close to that of a perfect isosceles triangle. In the case of food with a fixed upper surface, the upper surface is inserted into the inner folded plastic sheet material 3.

The shape of the internally folded plastic sheet material 3 is set according to the shape of the upper surface of the food to be packaged. For example, when used for a fan-shaped cheesecake having a central angle of about 30 °, the unfolded plastic sheet material 3 in the unfolded state has an apex angle of an isosceles triangular portion of 30 °.

The side surface and the bottom surface of the food x are in contact with the external plastic sheet material 2. That is, the distance between the lower side 6 of the outer plastic sheet material 2 and the folding line 15 of the inner folded plastic sheet material 3 is set corresponding to the thickness of the food. Then, the mouth is folded and sealed, and fixed with an adhesive tape or the like.

Thus, the food is packaged as shown in FIG. Food manufacturers can easily package food. Foods can be packed compactly with almost no gap, and the appearance of the packaging is beautiful. Since the food packaging body 1 before use is folded as shown in FIG. 1, it does not take up space and is convenient for transportation and storage.

Furthermore, the opening method of a food packaging body is demonstrated. FIG. 5 is a perspective view showing a method for opening a food package. By opening from the notch 15 of the knob part 14, opening starts from the top of the internally folded plastic sheet material 3. The connecting portion 12 along the oblique side 10 of the internally folded plastic sheet material 3 is peeled off, and the external plastic sheet material 2 and the internally folded plastic sheet material 3 are separated. Thus, the internally folded plastic sheet material 3 is peeled off, and the upper surface side of the food x is exposed.

Here, in a food such as a rare cheese cake whose surface contains a large amount of moisture and fat, a plastic film that has good adhesion and is difficult for the food to adhere at the time of peeling can be selected as the material of the internally folded plastic sheet material 3. On the other hand, the external plastic sheet material 2 that does not come into contact with the upper surface of the food may be a cheaper ordinary material.

In this example, since the knob part 14 is provided at the tip, the lower part of the knob part 14 can be pinched with the fingers of one hand, and the upper part of the cut 15 can be pinched with the fingers of the other hand. Therefore, it is not necessary to press the food itself at the time of opening. Thereby, even soft foods such as rare cheesecake can be opened without being crushed or broken.

By opening the upper surface widely, food can be easily taken out. You can also scoop up and eat with a spoon without taking it out.

The example of the manufacturing method of a food packaging body is demonstrated. FIG. 6 is a plan view showing a method for producing a food package. In this example of the manufacturing method, a plastic sheet original fabric of a one-side gusset in which a folded portion is formed only on one side is used as a material. The width of the original plastic sheet corresponds to the height of the external plastic sheet material (length of side 8). The depth of folding corresponds to the depth of the internally folded plastic sheet material 3.

As the raw plastic sheet, it is preferable to use a one-side heat-sealed film. At this time, the heat seal surface is directed to the inside of the tube. An adhesive band 12 and a top sealing band 13 on the upper side and the oblique side are formed on the original plastic sheet by thermocompression bonding. Then, cutting is performed along the oblique side 9, the vertical side 8, and the tip line of the knob portion 14. Further, a cut 15 is formed at the tip of the knob portion 14.

As described above, the food packaging body shown in FIG. 1 can be easily manufactured from the cylindrical plastic sheet raw material. If the same process is repeated while shifting the original plastic sheet by the length of the food package 1, the food package can be continuously produced. The upper side and the oblique side, the adhesive band 12 and the top sealing band 13 may be formed by individual thermocompression bonding, or may be formed at once by an integral press die.

Next, another example of the method for producing a food package will be described. In this example, the outer plastic sheet original fabric in the shape of a band-shaped plastic sheet folded in two along its center line, and the strip of a narrower width than the outer plastic sheet original fabric, the plastic of a material different from the outer plastic sheet original fabric One side gusset plastic sheet original fabric is formed by connecting the inner folded plastic sheet original fabric, which is formed by folding the sheet in half along its center line, with the sides thereof overlapped with each other. Here, the inner folded plastic sheet raw material is made of a plastic material that has good adhesion and is difficult for food to adhere at the time of peeling. On the other hand, the outer plastic sheet material is made of cheaper ordinary plastic.

In this way, the original fabric of the one-side gusset which connected two types of different plastics is formed, and this is used as a material. A food package is manufactured by thermocompression bonding and cutting as shown in FIG. 6 to the original fabric of this one-side gusset as in the above-described example. In the manufacturing method of this example, it is possible to obtain a food packaging body in which the contact surface with the top surface of the food has an easy peel property, and the amount of the relatively expensive easy peel plastic material is reduced, thereby reducing the material cost. Can be suppressed.

1. Food packaging 2. 2. External plastic sheet material 3. Internally folded plastic sheet material 4. Isosceles triangle part 5. hypotenuse Upper side 7. Lower side 12. Connection unit 13. Top seal 14. Knob portion 15. Notch

Claims (4)

An external plastic sheet material folded in half, and an internally folded plastic sheet material provided in the external plastic sheet material,
The internally folded plastic sheet material has an isosceles triangular portion and is folded in two along its center line, and the sides of the external plastic sheet material and the sides of the internally folded plastic sheet material overlap each other. Connected in a state,
The food packaging body in which the top sealing part is provided in the external plastic sheet material in the vertex part side of the isosceles triangle part of the internal folding plastic sheet material. The food packaging body according to claim 1, wherein a knob portion is provided following the top sealing portion, and a notch for starting opening is formed in the knob portion. A method for producing the food packaging body according to claim 1 or 2,
Using the plastic sheet raw material of the one-side gusset, where the folds are formed only on one side,
The step of forming the connection band obliquely by thermocompression from the side of the folding part side, the step of cutting the outside along the connection band, and the top sealing substantially perpendicular to the connection band from the vicinity of the end of the connection band The manufacturing method of the food packaging body which has the process of forming a part. An outer plastic sheet original fabric in which a belt-shaped plastic sheet is folded in two along its center line, and a plastic sheet made of a material different from the outer plastic sheet original fabric in the shape of a band narrower than the outer plastic sheet original fabric. A plastic sheet original fabric of one side gusset is formed by connecting the inner folded plastic sheet original fabric folded in two along the line with the sides overlapped to each other, and this plastic sheet original fabric is used. Item 4. A method for producing a food package according to Item 3.

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