JPH07274867A - Packaged rice ball, production thereof and packaging film - Google Patents

Abstract

PURPOSE:To obtain a packaged rice ball capable of providing a laver-rolled rice ball by packaging a rice ball with a packaging film holding laver between inner and outer films and simply and readily opening the package and obtain the packaging film. CONSTITUTION:Perforation 7 forming both short side parts of a rectangular film as separating pieces 6 is provided and laver 4 is superposed on the inside face of an outer film 2 forming other outer peripheral edge parts as adhesive widths 9 and further, an inner film 3 is superposed on nearly half face part of the laver 4 on the inside face of the outer film 2 and a twice-folded part 10 having adhesive width is superposed on one of the separation piece 6 and a rice ball is put on a part the inner film 3 and the inner film 3 is folded back at the two-folded part 10 having adhesive width and superposed on the rice ball and the outer film 2 is folded back together with the laver 4 and superposed on the outside and both separating pieces 6 parts are bonded by thermal fusion, etc., in a state in which the part 10 having two-folded adhesive width is inserted and two adhesive widths 9 are bonded by thermal fusion, etc., to provide the objective packaged rice ball.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging rice ball for packaging nigiri rice in a separated state from seaweed, a method for producing the same, and a packaging film.

[0002]

2. Description of the Related Art Conventionally, a variety of packaged rice balls, in which nigiri rice and seaweed are packaged separately, are hygienic, and the seaweed is fresh, and when eating, the seaweed is combined with the nigiri rice to obtain rice ball wrapped with seaweed Is proposed in the configuration.
Among these, laver that is smaller than the outer shape of the rectangular outer film is stacked on the inside of the outer film, and two inner films having a width slightly larger than the width divided into two in the longitudinal direction of the outer film are further stacked on the inside. A part of the inner film of the outer film is overlapped with each other, the outer peripheral edge part is overlapped with the outer peripheral edge part of the outer film, and the inner and outer film is adhered along the outer peripheral part. There is a wrapping rice ball on which nigiri rice is placed, the other half part is folded along it, and the triangular protruding parts of the inner and outer films are folded and a label is stuck on it.

When eating, the packaging rice balls are peeled off the label, the packaging film is opened, and the rice nigiri rice is placed on one half of the inner film while the other half of the inner film is peeled off to expose the exposed seaweed. Fold it on top, and this time, put the rice ball back on the other half of the inner film with the seaweed down, peel off the inner film on the one half side and fold the seaweed on the rice, then roll the rice ball Is what you get. However, when the seaweed is combined with this packaged rice ball, the rice and seaweed may be exposed from the inner film and become unsanitary. Moreover, the rice ball is placed again on the inner film to combine the seaweed. , Nigiri rice easily slipped off from the packaging film, and it was troublesome to obtain seaweed rice balls.

As a solution to these drawbacks, a triangular conical rice ball is formed in a conical shape so as to substantially follow the outer shape of the rice.
An inner film of this packaging film is formed by using a packaging film in which seaweed is interposed between an outer film formed with perforations capable of separating the leading end portion to form a small hole and an inner film having substantially the same shape. There is a wrapping rice ball in which rice balls are inserted inside, the opening is folded and a label is attached.

[0005] In this packaging rice ball, if the perforation is torn and the tip is removed, the tip of the inner film is exposed, and if the label is peeled off, the folded portion is opened, so if the tip is pulled and the inner film is pulled out. Nori wrapped rice balls can be obtained, and the operation when eating is simple and hygienic. However, since the inner film tends to stick around the rice ball and it must be pulled out from the small hole in the outer film, it cannot be pulled out into the smooth, so if you try to pull it out forcibly, squeeze the rice ball firmly. It had the drawback that it was easy to lose its shape.

As a solution to this drawback, a small piece of seaweed is overlaid on the inside of an outer film having a cutting means such as a cut tape formed in the longitudinal direction of the central portion of the rectangular body, and a short inside is formed. Two sheets whose width is slightly wider than the width of the outer film divided into two, the inner film, the outer film is aligned with the outer peripheral edge and overlapped with each other so that the central portion is superposed,
There is a packaging rice ball wrapped with a packaging film obtained by heat-sealing the inner and outer films along the outer peripheral edge of the outer film.

In this packaging rice ball, if the outer film is divided into left and right parts by the dividing means, the inner film is a divided type in which two films are polymerized in the central portion, so that the entire packaging film is divided into two parts, By pulling the halves to the left and right, you can easily combine the seaweed with the nigiri rice to get the rice ball wrapped with seaweed. However, one side of nigiri rice is folded in half along the lateral direction of the central part, and both corners protruding in a triangular shape are sequentially folded on the nigiri rice, and a label is attached to this overlapping part. However, the cutting by the cutting means is caught at the overlapping portion, and it is difficult to perform the simple and accurate cutting. Based on this, we have formed a notch in the corner by diagonally notching both corners so that they do not overlap each other by reducing the overlapping part on the cutting means and not disturbing the cutting. What has been done has already been proposed.

[0008]

However, the above-mentioned cutouts are preferable in that the cutting itself is facilitated because the overlapping with the cutting means is reduced, but both corners have cutouts. Since it is reduced by the amount of the portion, the nigiri rice is not fully covered and partially exposed, or
As the overlap is reduced, the number of folded portions is reduced, so that the portion that can be fastened is limited, and there is a possibility that fastening by the label is insufficient.

On the other hand, regardless of whether or not the notch is formed, in order to fix both folding parts, the root side part of the folding part is heat-sealed and fixed, and folded on the dividing means. Labels are attached to both corners. Therefore, when dividing, the label itself must be divided, for example,
If the cutting means is a cutting tape, the cutting tape will be cut during the cutting, or if you try to forcibly divide the nigiri rice, the nigiri rice will lose its shape, resulting in smooth separation. It was sometimes difficult to do. In addition, even after cutting, since the root side part of the fold is still heat-sealed, it is difficult to smoothly cut out when cutting one half left and right, and the seaweed part sandwiched between the folds is torn off. There were problems such as being easy.

The present invention has the above-mentioned problems in that the packaging film is folded in multiple layers and a label is attached on the separating means for opening, the packaging rice ball is packaged, a method for producing the same, and a packaging film. In order to solve the problem, the composition of the packaging rice ball and its manufacturing method, and the composition of the packaging film were fundamentally improved, and the purpose is to: By fold the inner and outer films and seaweed in two without attaching a label, you can easily and surely package the nigiri rice, and when you eat it after manufacturing, you can easily open it and easily get the seaweed rice ball. It is intended to provide such a packaging rice ball, a method for producing the same, and a packaging film.

[0011]

In order to solve the above-mentioned problems, the present invention provides a separating means so that a part of the outer peripheral edge portion in the state of being folded in two can be a separating piece, and Nori seaweed is laminated on the inner surface of the outer film which uses the other outer peripheral edge as a bonding margin, and the substantially half surface portion of the inner film is superposed on the inner substantially half surface portion thereof, and the two folded side portions of the inner film are separated by the above-mentioned separation piece portion. To form a wrapping film, place nigiri rice on the inside of this overlapped inner film part, fold the inner film into two folds so as to cover the nigiri rice, and fold the outer film with seaweed and lay it on the outside In addition, there is a configuration in which the separated piece portion of the outer film and the above-mentioned two-fold side portion of the inner film are bonded by heat fusion or the like, and at the same time, the bonding margins of the outer film are bonded by heat fusion or the like. It is obtained by the packaging rice balls Te.

Further, with respect to the separated piece portion of the outer film, the side portion adjacent to the two-fold side of the inner film is overlapped to form a packaging film, and after the nigiri rice is placed, both portions are adhered to each other at the same time. A packaging rice ball having a structure in which the bonding margins of the outer film are bonded to each other by heat fusion or the like can be used. The packaging rice ball preferably has a configuration in which air is removed from the packaging film when the outer peripheral edge is bonded by heat fusion or the like.

Further, according to the present invention, the outer film is provided with a separating means so that a part of the outer peripheral edge part in the state of being folded in two can be used as a separating piece, and the other outer peripheral edge part is used as an adhesive margin. Nori seaweed is laminated on the inner surface of the, and the inner half of the inner film is overlaid on the inner half of the inner film, and the two folded side portions of the inner film are overlaid on the separated piece portion to form a packaging film. Place the nigiri rice on the inside of the inner film part, fold the inner film back in two so as to cover the nigiri rice, fold the outer film with seaweed and overlap it on the outside, and separate the outer film separation piece and the inner film. There is also a special method for producing a packaging rice ball having a structure in which the two folded side portions are bonded by heat fusion or the like, and at the same time, the bonding margins of the outer film are bonded by heat fusion or the like. It is an.

On the separated piece portion of the outer film, the side portion adjacent to the two-fold side of the inner film is overlapped to form a packaging film, and after nigiri rice is placed, both portions are adhered, and at the same time, the outer film is adhered. Another feature is a method for producing a packaged rice ball having a structure in which the margins are adhered to each other by heat fusion or the like. In order to manufacture the packaging rice ball as described above, it is preferable to remove air from the packaging film when the outer peripheral edge portion is bonded by heat fusion or the like.

Further, according to the present invention, the outer film is provided with a separating means so that a part of the outer peripheral edge portion in the state of being folded in two can be used as a separating piece, and the other outer peripheral edge portion is used as an adhesive margin. Laminate the seaweed on the inner surface of, and superimpose the inner half of the inner film on the inner half.
Overlap the two-fold side part of the inner film on the separation piece part,
The packaging film has a structure in which the separated piece portion of the outer film and the two-fold side portion of the inner film are bonded by heat fusion or the like. The wrapping film may be one in which a side portion adjacent to the two-fold side of the inner film is overlapped with a separated piece portion of the outer film and both portions are adhered.

[0016]

[Function] The approximately half surface of the inner film is overlaid on the approximately half surface of the outer film overlaid with seaweed, the nigiri rice is placed on the approximately half surface of the inner film, and the inner and outer films are folded back in half to cover the nigiri rice. Then, the two pieces of the inner film are bonded to each other by heat fusion or the like while sandwiching the two folded side portions of the inner film between the separated pieces of the outer film, and at the same time, the bonding margins of the outer film are bonded to each other so that the packaging rice ball is formed. The packaging rice ball can be manufactured in a state where the packaging film is folded in two and without attaching a label.

The inner film is adhered to the outer film in such a manner that the two-fold side portion or the adjacent side portion is sandwiched by the outer film separating pieces, and the other covering portion is not wrapped with nigiri rice. Although there is a free end that is not adhered, the outer side of the inner film is in a state of being wrapped with a two-fold outer film with seaweed intervening. Therefore, if the separating piece of the outer film is separated by the separating means, the inner film can be pulled out together with the separating piece from the outer film, and the seaweed-rolled rice ball can be easily obtained by combining the seaweed and the nigiri rice.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 3, the packaging rice ball 1 according to the present invention is made into a packaging film by interposing a small seaweed 4 between an outer film 2 and an inner film 3, and this packaging film is used to make rice ball rice balls. 5 is packaged.

The outer film 2 is a rectangular film made of an arbitrary synthetic resin, preferably a biaxially stretched film, and the triangular nigiri rice 5 can be packaged in a state of being folded in half in its longitudinal direction. A perforation 7 is provided as a separating means for separating the short sides along both short sides to form a separating piece 6, and notches 8 for tear guide are provided at both ends thereof to separate them. The outer peripheral edge portion other than the piece 6 is used as a bonding margin (clearable width for bonding) 9.

The inner film 3 is an arbitrary synthetic resin, preferably a polyethylene terephthalate (PET) film,
Alternatively, the outer film 6 may be a rectangular film made of synthetic resin whose surface is processed so that the surface has high slipperiness (to reduce frictional resistance), such as a matte film having a matte finish. Which is smaller than the outer shape of the above, or at least has a shorter width than the outer shape, and which is folded in half in the longitudinal direction and the two-fold side portion is bonded together with the above-mentioned separation piece 6 portion. Width) 10, and the film surfaces on both sides of the double-folded adhesive margin 10 are respectively nigiri covered portions 11 and 12.

Using the inner and outer films 2, 3 and seaweed 4, the packaging rice ball 1 of the present invention can be manufactured as follows. First, on the inner surface of the outer film 2,
The seaweed 4 is placed inward of the adhesion margin 9, and the inner film 3 is displaced on the inner half of the inner film 3 by about half from the polymerization state, that is, the covering portion 11 of the inner film 3 is the outer film 2. Overlapped on the substantially half surface of the seaweed 4 inward of the adhesive margin 9, and overlapping the adhesive margin 10 part with the separating piece 6 part of the outer film 2, and further covering the same. 5 rice balls on top of part 11
Put.

Next, the inner film 3 is folded in two and the adhesion margin 10 is applied.
Fold it in half to fold it and wrap the covered part 12 in rice 5
On the opposite side of the outer film 2, and the outer film 2 on the other half of the surface is folded back together with the seaweed 4 and overlapped on it, and a two-fold adhesive allowance 1 is provided between the separated pieces 6 of the outer film 2.
While the 0 portion is sandwiched, these are integrally bonded by an arbitrary means such as heat fusion and the bonding margin 9 of the outer film 2
The packaging rice ball 1 can be manufactured by adhering them to each other by an arbitrary means such as heat fusion to make the outer periphery substantially sealed.

Next, an example of the manufacturing process of the packaging rice ball 1 is shown in FIGS. The processing die 13 is a thick-walled disk-shaped die having a thickness substantially equal to the thickness of nigiri rice, and has a plurality of processing holes 14 formed by hollowing out the disc portion in the axial direction to a size substantially equal to the outer shape of the nigiri rice. Each of them is provided along the circumference and is intermittently rotatable about the shaft 15. In the example shown in FIG. 4, six holes 14 are formed on the disk. In addition, around the processing die 13, there are provided respective devices (not shown) for performing respective operations necessary for manufacturing the packaging rice ball 1, for example, operations such as supply of film and seaweed, for each processing hole 14. Correspondingly installed separately.

In each manufacturing process of the packaging rice ball 1, first, the outer film 2 is formed on the processed hole 14 at the predetermined position a in FIG.
Is supplied, and then the processing die 13 is rotated by one pitch up to b in the same figure, and the seaweed 4 is supplied to the predetermined position on the outer film 2 at b, and the processing die 13 is moved to the next intermittent rotation position. Rotate 1 pitch to c. Here, the inner film 3 is supplied to the predetermined position on the seaweed 4, and the outer film 2 and the seaweed 4 are overlapped with each other by being displaced by a predetermined length. Next, after the processing die 13 is rotated by one pitch to the next predetermined position d, the nigiri rice 5 is supplied so as to fit into the processing hole 14 and overlaps the inner film 3, and further the processing die 13 is shown in FIG. Rotate 1 pitch until.

In this state (or simultaneously with the supply of nigiri rice shown in FIG. 4d, more preferably, the nigiri rice 5 is appropriately pushed into the processing hole 14, and along with that, the film portion around the nigiri rice 5 is appropriately removed from the processing die 13. As shown in FIGS. 5 and 6 (A) and (B), the inner film 3 is folded back with a work arm (not shown) at the double-folded adhesive margin 10 and is placed on the nigiri rice 5. On top of
The outer film 2 is folded back together with the seaweed 4 by another working arm (not shown), and is superposed on the inner film 3 which has already been folded.

Next, the processing die 13 is rotated by one pitch up to FIG. 4f (or it may be left at the above-mentioned superposition position).
As shown in FIG. 7 (A), the press-seal machine (not shown) sandwiches the two-fold bonding margin 10 of the inner film 3 between the separated pieces 6 of the outer film 2 to bond them by heat fusion or the like. The bonding margins 9 of the outer film 2 are bonded by heat fusion or the like to form a packaging rice ball, and the packaging rice ball is further pushed out from the processing hole 14 by another working arm (not shown) (FIG. 9B).

In this way, one packed rice ball 1 can be manufactured. In addition, one step of the manufacturing operation is completed by rotating the processing die 13 by one pitch up to FIG. 4a, and the above steps can be subsequently repeated, so that the packaging rice ball 1 can be manufactured one after another.

Further, in this packaging rice ball 1, when the packaging is completed, the corners are triangularly projected from the rice ball 5, and voids are formed in the film. Therefore, when the bonding margins 9 are bonded to each other, for example, As shown in FIG. 7 (A), when the bonding margins 9 are bonded together by a press-sealing machine (not shown), if the vacuum film is produced while removing the air from the outer film 2, the nigiri rice 5 and the inner and outer films 2, 3 and seaweed Since 4 does not shift stably in a sealed state, it is more preferable in combination with prevention of deterioration. Further, the rectangular flat surface portion 16 of the finished packaging rice ball 1 may be hung on the perforations 7, but preferably, a label 17 having a desired indication such as the date of manufacture and the product name is attached so as not to hang it. You can keep it.

In the case of the packaged rice ball having the above structure, when eating, first, as shown in FIG. 8A, the perforation 7 is cut left and right from the notch 8 to separate the separation piece 6, and the same as shown in FIG. If the inner film 3 is heat-sealed at the separating piece 6 portion, the inner film 3 can be pulled out together with the separating piece 6 while being folded in two. At this time, if a label or the like is not attached to the perforations 7, the slitting is performed more smoothly without being disturbed.

When the inner film 3 has been pulled out, the nigiri rice 5 is wrapped in the folded seaweed 4, and the separating piece 6 of the outer film 2 is entirely an opening. Therefore, the nigiri rice is opened from this opening. No. 5 can be taken out in a seaweed-rolled state (Fig. (C)). In this way, the seaweed 4 wraps the rice 5 while the inner and outer films are folded in two, so that a complete seaweed rice ball can be obtained very easily without tearing part of the rice.

As shown in FIG. 9 (A), using the inner and outer films 2 and 3 and seaweed 4 described above, the outer film 2
On the inner surface of the, the seaweed 4 is piled inward from the adhesion margin 9
Further, the inner film 3 is placed on the substantially inner half surface of the inner film, the covering portion 11 is overlapped on the substantially half surface of the outer film 2 inwardly of the adhesive margin 9 of the outer film 2, and the double-folded adhesive margin 10 is the outer film 2. By overlapping the separation pieces 6 so as to overlap each other, and then further adhering 18 of the two-fold adhesion margin 10 to the separation pieces 6 by heat fusion or the like,
By forming the packaging film 19 in advance and going through the manufacturing steps shown in FIGS. 4d to 4f, the packaging rice ball 1 can be manufactured.

As another embodiment different from the above embodiment,
As shown in FIG. 9 (B), perforations 21 are provided along the longitudinal sides of the rectangular body as separating means for separating one longitudinal side portion of the rectangular body into separating pieces 20, and a tear guide is provided at both ends thereof. Using an outer film 24 provided with a notch 22 and having an outer peripheral edge portion other than the separation piece 20 as an adhesive margin 23, the inner film 3 and the seaweed 4 used in the production of the packaging rice ball 1,

On the inner surface of the outer film 24, the seaweed 4 is superposed on the inner side of the adhesion margin 23, and on the substantially half surface inside thereof, the substantially half surface portion of the inner film 3 is crossed vertically and horizontally.
That is, the covering part 11 on the approximately half surface of the inner film 3 overlaps the approximately half surface of the seaweed 4 inward of the adhesive margin 23 of the outer film 24, and the double-fold adhesive margin 10 portion is a separation piece of the outer film 24. Overlap so that it overlaps with 20 parts, and then put nigiri rice 5 on the covering part 11,
After that, the packed rice ball can be manufactured in the same manner as when the packed rice ball 1 is manufactured.

Also in this case, it is also possible to manufacture a packaging rice ball by using the inner and outer films in a stacked state and adhering the separating pieces 20 by heat fusion or the like to form a packaging film in advance. Of course, it is also possible to remove the air from the outer film 24 at the time of bonding and make it into a vacuum state for packaging. Also in this packaging rice ball, since the two-fold bonding margin 10 of the inner film 6 is adhered to the part of the separating piece 20, the opening is as simple as the packaging rice ball 1.

FIG. 10 shows an embodiment further different from the above embodiment. The wrapping rice ball 25 has two long side portions of a rectangular body cut out in a triangular shape with large notches diagonally from both end portions to the long side so that the rice ball can be wrapped in a state of being folded in half in the longitudinal direction. A cut tape (cutting narrow tape) 27 is provided as a separating means for separating the short side portion along the short side to form a separation piece 26, and slits 28 are provided at both ends thereof for guiding tearing. An outer film 30 having an outer peripheral edge portion other than the separation piece 26 as an adhesion margin 29,

A rectangular body is folded in two in the longitudinal direction, and its corner is cut out so that it is overlapped with the inside of the outer peripheral edge of the triangular piece half of the outer film 30. The portion is used as a double-folded bonding margin 31, and the other triangular film surfaces are covered with the covering portions 32, 3 respectively.
Using the inner film 34 that is 3,

A small piece of seaweed 35 is superposed on the inner side surface of the outer film 30 inward of the adhesive margin 29, and the inner film 34 and the encapsulation portion 32 of the inner film 34 are placed on the inner half surface of the triangular shape. Inward from the adhesion margin 29 of the outer film 30,
Overlaps on approximately half of the seaweed 35, and is folded in 3
One part of the outer film 30 is overlapped with the separated piece 26 of the outer film 30 so as to overlap with each other, and then the nigiri rice 5 is placed on the covering part 32,

Next, the inner film 34 is folded in two and the adhesion margin 3
It is folded back in half in one part and the covering part 33 is folded on the opposite side of the nigiri rice 5, and then the outer film 30 of the other half surface is folded back together with the seaweed 35 and overlapped, and the outer film 30 is separated. Between the pieces 26, the half-folded adhesive margin 31 is sandwiched and heat-bonded to integrally bond the outer-film 30 adhesive margins 31 to each other by heat-fusion. Is manufactured by making it substantially sealed.

In order to manufacture a packaged rice ball using the inner and outer films 30, 34 and seaweed 35, the outer peripheral edges of the folded outer film 30 are adhered to each other except between the slits 28, and in addition to the above packaging. It can be manufactured in the same manner as the method for manufacturing the onigiri 1, and the inner and outer films 30 and 34 are overlapped with the seaweed 35 in between as described above, and the part of the separation piece 26 is previously heat-sealed or the like. It is also possible to form a packaging film by bonding and use this to manufacture the packaging rice ball 25.

With this packaging rice ball, the cut tape 27 is cut, and the separating piece 26 is pulled outward, so that the seaweed rice ball can be obtained in the same manner as in the packaging rice ball 1 above. That is, also in this case, the tearing is performed extremely smoothly without being obstructed by the label or the like, and when the inner film 34 is pulled out together with the separating piece 26, the seaweed rolled rice ball with the folded seaweed 35 can be easily obtained. .

The shape of the outer film is not limited to the above-mentioned embodiment, and may be any shape as long as it can package nigiri rice. The inner film and seaweed correspond to this outer film. Can be formed into an arbitrary shape. Further, the separating means may be the perforation, the cut tape, or any other separable means or a film structure, and the forming line of the separating means may be set to a curve or any other shape.

On the other hand, as shown in FIG. 11 (A), the seaweed 4 is superposed on the inner side surface of the outer film 24 inward of the adhesive margin 23, and further on the substantially half surface inside thereof. The inner film 36 used is a side that is overlapped with the substantially half surface of the seaweed 4 and is adjacent to the two-fold side, that is, the long side portion 37, with the substantially half surface portion thereof being inward of the adhesion margin 23 of the outer film 24. Part of the inner film 36 is overlapped so as to overlap with the separation piece 26 of the outer film 24.
Put

Next, the other half surface portion of the inner film 36 is folded on the opposite surface side of the sushi rice 5, and the other half surface portion of the outer film 24 is folded back and overlapped with the seaweed 4 on top of it. While the long side portion 37 is sandwiched between the separated pieces 26 of 24, they are bonded together by heat fusion or the like, and the bonding margins 23 of the outer film 24 are bonded by heat fusion or the like. Then, the outer circumference can be made into a substantially sealed shape, and it is possible to manufacture packaging rice balls,

Further, as shown in FIG. 3B, seaweed 4 is placed on the inner side of the adhesive margin 9 of the outer film 2 used for manufacturing the packaging rice ball 1, and the inner film is formed on the inner half surface thereof. 36 to the outer film 2 in a crosswise manner,
That is, the substantially half surface portion of the inner film 36 is the outer film 2.
Of the seaweed 4 inward from the adhesion margin 9 of No. 4, and a part of the long side 37 of the inner film 36 overlaps with the separation piece 6 at the longitudinal end of the outer film 2. After the combination, the packaged rice ball can be manufactured in the same manner as in FIG. 11 (A).

Even in these cases, a part of the long side portion of the inner film is adhered to the separated piece portion of the outer film by heat fusion or the like in a state where the inner and outer films are stacked to form a packaging film. This can be used to manufacture a packing rice ball, and of course, the air inside the outer film 24 or 2 can be extracted at the time of bonding to make a vacuum, and the packing can be performed in a rectangular shape. Without using the ones shown in FIG. 10 and other shapes,
As long as the approximately half surface portion of the inner film can be overlapped with the approximately half surface portion of the outer film, the packaging rice ball can be manufactured in the same manner.

In the embodiment shown above, when the inner and outer films are stacked as shown in FIG. 4 to FIG. 7 or FIG. 9 (A), in the short width portion of the inner film stacked on the outer film. Place one side of the nigiri rice so that it stands upright, first align the inner film with the nigiri rice so that it covers from both sides, then fold the outer film from both sides, and at the separate piece of the outer film, fold the inner film into two folds. It is also possible to produce a packaging rice ball by sandwiching the portions and thermally adhering them together to integrally bond them, and at the same time, adhering the adhesive margins of the outer films together by heat fusion or the like.

In any of the above embodiments, a cut tape is provided in place of the perforations, or both are used, or a slit having a directionality in the slit tearing direction is used to guide slitting. May be provided, or may be used in combination.

[0048]

As described above, according to the present invention, the seaweed is superposed on the inner surface of the outer film inward of its adhesive margin,
Furthermore, the approximately half surface of the inner film is overlaid on the approximately half surface of the seaweed inside, and the nigiri rice is placed on the approximately half surface inside this inner film, and the other approximately half surface portion is folded over the nigiri rice, On top of that, the approximately half surface portion of the outer film is folded back together with the seaweed, or the packaging film having such a constitution is used, and then the two-fold adhesion margin portion of the inner film or the adjacent side portion is It is possible to manufacture a packaging rice ball by sandwiching the separated piece portions of the outer film and adhering them by heat fusion or the like, and adhering the outer peripheral edge portion of the outer film.

Therefore, the packaging rice ball can be easily and reliably manufactured without folding both corners of the packaging film or attaching a label to the folded portion. Moreover, since the separating means is provided along the outer peripheral edge of the outer film, the desired display label can be attached to a portion other than the separating means, and the separation by the separating means is not obstructed by the label. , Can be done extremely smoothly. Further, when the inner and outer films are bonded by heat fusion or the like, if the air in the outer film is removed and produced, the inner and outer films and seaweed will not be stably displaced in a substantially sealed state, and together with deterioration prevention. It will be more preferable.

Further, the packaging film is not folded in multiple layers, and is simply folded in half to cover the rice ball. Moreover, in order to obtain the rice ball wrapped in seaweed, the inner film together with the separation piece after separation by the separating means is obtained. Since you can do it by simply pulling out the seaweed, you can easily obtain a complete seaweed rice ball without breaking the seaweed sandwiched between the inner and outer fills.

[Brief description of drawings]

FIG. 1 is a front view showing an example of a packaging rice ball of the present invention.

FIG. 2 is a sectional view taken along line II-II of the packaging rice ball of FIG.

FIG. 3 is an exploded perspective view of the packaging film of the present invention.

FIG. 4 is an explanatory diagram showing an example of a method for manufacturing a packed rice ball.

5 is a partially enlarged perspective view showing a state in which the inner film is partially folded back on the inner and outer films and the seaweed placed on the processing mold in the states of d and e in FIG. Is.

FIG. 6 shows a manufacturing process of a packaged rice ball from e to f in FIG. 4, and (A) is a cross section showing a state in which the inner and outer films and seaweed are overlaid, and then the inner and outer films are folded back by placing nigiri rice thereon. It is a figure, (B) is a rice ball on which the inner and outer films folded back to a vertical state are further added.
It is sectional drawing which shows the state folded back on a nigiri rice.

FIG. 7 shows a manufacturing process of the packaging rice ball from e to f of FIG. 4, and (A) is a cross-sectional view showing a state in which the inner and outer films are folded and the rice ball is pushed in from above, FIG. 8B is a cross-sectional view showing a state in which the outer peripheral edge portion is bonded by heat fusion or the like and then passed through the processing hole of the processing die.

FIG. 8 is a front view showing an example of a method for opening a packaging rice ball, (A) showing a state in which the perforations are partly torn, and (B) a state in which a part of the inner film is pulled out together with the separating piece. And (C) represents a state in which the seaweed rolled rice ball is partially taken out from the outer film.

FIG. 9 (A) is a front view showing an example of a packaging film, and FIG. 9 (B) is a front view showing a packaging film of another example different from (A).

FIG. 10 shows still another embodiment of the packaging film and the packaging rice ball, (A) is a front view showing the packaging film, and (B) is a front view showing the packaging rice ball in a packaging completed state. is there.

FIG. 11 shows still another embodiment of the packaging film, (A) is a front view showing an example thereof,
(B) is a front view showing another example.

[Explanation of symbols]

 1 Packaging rice ball 2 Outer film 3 Inner film 4 Laver 5 Nigiri rice 6 Separation piece 7 Perforation 9 Adhesion allowance 10 Double-fold adhesion allowance 11,12 Envelopment part 17 Label 19 Packaging film 20 Separation piece 21 Perforation 23 Adhesion allowance 24 Outer film 25 Packaging rice ball 26 Separation piece 27 Cut tape 29 Adhesion allowance 30 Outer film 31 Bi-fold adhesion allowance 32,33 Encapsulation part 34 Inner film 35 Laver 36 Inner film

Claims (8)

[Claims] 1. Nori seaweed is provided on the inner surface of an outer film which is provided with a separating means so that a part of the outer peripheral edge portion in the state of being folded in two can be used as a separating piece, and the other outer peripheral edge portion serves as an adhesive margin. And the substantially half surface portion of the inner film is overlapped on the inner substantially half surface portion thereof, and the two folded side portions of the inner film are overlapped with the separating piece portion to form a packaging film, and the overlapped inner film portion is Place nigiri rice on the inside, fold the inner film back in half to cover the nigiri rice, then fold the outer film with seaweed and lay it on the outside, separating the outer film and the inner film A packaging rice ball having a structure in which the portions are adhered by heat fusion or the like, and at the same time, the bonding margins of the outer film are adhered by heat fusion or the like. 2. Nori seaweed is provided on the inner surface of the outer film, wherein a separating means is provided so that a part of the outer peripheral edge portion in the state of being folded in two can be used as a separating piece, and the other outer peripheral edge portion serves as an adhesive margin. And the substantially half surface portion of the inner film is overlaid on the inner substantially half surface portion thereof, and the side portion adjacent to the two folded sides of the inner film is overlaid on the separating piece portion to form a packaging film, which is overlaid. Place the nigiri rice on the inside of the inner film part, fold the inner film back in two so as to cover the nigiri rice, fold the outer film with seaweed and overlap it on the outside, and separate the outer film separation piece and the inner film. A packaging rice ball having a structure in which the adjacent side portions are adhered by heat fusion or the like, and at the same time, the bonding margins of the outer film are adhered by heat fusion or the like. 3. The packaging rice ball according to claim 1, which has a structure in which air in the packaging film is removed when the outer peripheral edge portion of the outer film is bonded by heat fusion or the like. 4. Nori seaweed is provided on the inner surface of the outer film, which is provided with a separating means so that a part of the outer peripheral edge portion in the state of being folded in two can be used as a separating piece, and the other outer peripheral edge portion serves as an adhesive margin. And the substantially half surface portion of the inner film is overlapped on the inner substantially half surface portion thereof, and the two folded side portions of the inner film are overlapped with the separating piece portion to form a packaging film, and the overlapped inner film portion is Place nigiri rice on the inside, fold the inner film back in half to cover the nigiri rice, then fold the outer film with seaweed and lay it on the outside, separating the outer film and the inner film A method for producing a packaging rice ball, characterized in that the portions are bonded by heat fusion or the like, and at the same time, the bonding margins of the outer film are bonded by heat fusion or the like. 5. Nori seaweed is provided on the inner surface of the outer film, which is provided with a separating means so that a part of the outer peripheral edge in the state of being folded in two can be used as a separating piece, and the other outer peripheral edge serves as an adhesive margin. And the substantially half surface portion of the inner film is overlaid on the inner substantially half surface portion thereof, and the side portion adjacent to the two folded sides of the inner film is overlaid on the separating piece portion to form a packaging film, which is overlaid. Place the nigiri rice on the inside of the inner film part, fold the inner film back in two so as to cover the nigiri rice, fold the outer film with seaweed and overlap it on the outside, and separate the outer film separation piece and the inner film. A method for producing a packaging rice ball, which comprises bonding the adjacent side portions by heat fusion or the like, and at the same time bonding the outer margins of the outer film by heat fusion or the like. 6. The production of a packaging rice ball according to claim 4, wherein the air in the packaging film is extracted when the outer peripheral edge portion of the outer film is bonded by heat fusion or the like. Method. 7. Nori seaweed is provided on the inner surface of the outer film, which is provided with a separating means so that a part of the outer peripheral edge in the state of being folded in two can be used as a separating piece, and the other outer peripheral edge serves as an adhesive margin. And the half-face portion of the inner film is overlapped on the inner half-face portion thereof, and the two folded side portions of the inner film are overlapped with the above-mentioned separation piece portion, and the separated piece portion of the outer film and the two-fold side portion of the inner film A packaging film having a structure in which a portion is adhered by heat fusion or the like. 8. Nori seaweed is provided on the inner surface of the outer film, which is provided with a separating means so that a part of the outer peripheral edge in the state of being folded in two can be used as a separating piece, and the other outer peripheral edge serves as an adhesive margin. And overlap the substantially half surface portion of the inner film on the substantially half surface portion inside thereof, and overlap the side portion adjacent to the two-fold side of the inner film on the separation piece portion,
A packaging film having a structure in which a separated piece portion of an outer film and an adjacent side portion of an inner film are bonded by heat fusion or the like.