Formed rice food packaging

Abstract

To provide a packing material of formed rice food which prevents breakage of the formed rice food when opening.SOLUTION: A front film 1 with means of splitting into two pieces and rear film pieces are partly pasted in order to make a pocket part for storing sheet-like food S. On the surface closer to each edge part of the pair of rear film pieces, second rear film pieces with their junction parts located closer to backward are overlapped as vertically openable / closable making the junction parts as a fulcrum, and the front part of each second rear film piece is bent backward to make a folded face so that folding parts are positioned around a position corresponding to the means of splitting on the front film, and the edge of one of the rear film piece, which is over the other at the overlapping part, is inserted between the surface of the other rear film piece and the back face of the second rear film piece, and the folded face of the second rear film piece becomes a contacting face of the formed rice food.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a sheet-like packaging body for packaging formed rice foods such as rice balls, and more specifically to a packaging body for formed rice foods in which a sheet-like food such as seaweed is packaged and isolated from the formed rice food, and the sheet-like food is wrapped around the surface of the formed rice food when the packaging is opened and removed. [Background technology]

[0002] The background art will be described below with reference to FIGS.

[0003] A widely used package P for formed cooked rice foods has a rectangular front film 11 that is large enough to encase a triangular rice ball R and has a dividing means (here, a cutting tape 12) for dividing it into two in the short direction, while the back film is divided in two in the width direction into a pair of back film pieces 14A, 14B (for example, Patent Document 1).

[0004] The formed cooked rice food packaging material P has the ends of the back film pieces 14A, 14B overlapped near the location corresponding to the dividing means (cut tape 12) of the front film 11, with the pair of back film pieces covering all or part of the front film, and portions of the front film and back film pieces joined together to form a pocket portion for storing sheet-like food (here, seaweed S) inside.

[0005] The packaging material P is used to package the rice ball R by bringing the surfaces of the back film pieces 14A, 14B into contact with the rice ball R, specifically, the bottom of the rice ball is positioned near the center between the front and back of the packaging material, the rear half of the packaging material covers the back of the rice ball, and then the front half covers the front (see Fig. 6). In this case, since the rice ball is triangular and the packaging material is rectangular, there are blank areas A, A on the left and right of the packaging material, with the apexes being the corners of the front short side of the packaging material, and these blank areas are folded back and overlapped over the rear half of the packaging material covering the back of the rice ball and partially adhered, and then a label L is adhered on top of that to fix the packaged state (see Figs. 7 and 8). When opening the package, the dividing means (cutting tape 12) on the front film 11 is pulled up from the front side of the rice ball R using the notches 13, 13 provided at the end, dividing the front film successively into left and right, and also dividing the other parts of the packaging material (margins A, A) that are folded over at a position that crosses the path of the cutting tape (see FIG. 9). In this case, since the rice ball R side has already been divided into left and right by the pair of rear film pieces 14A, 14B, the packaging material P ends up being divided into left and right, and by pulling to the left and right, the packaging material is removed leaving behind the sheet-like food (seaweed S) stored in the pocket, and only the sheet-like food (seaweed) remains wrapped on the surface of the rice ball.

[0006] In the above-mentioned packaging material, the sheet that constitutes the packaging material has a pocket portion inside for storing sheet-like food such as seaweed, but moisture (steam) evaporating from the rice balls and oil seeping out from the food can penetrate into the pocket portion through the overlapping areas between the backing film pieces, making the stored sheet-like food damp or sticky, and in the case of seaweed, this can cause the seaweed's characteristic crisp texture to be lost.

[0007] Therefore, an invention has been proposed that aims to improve the airtightness of the overlapping portion between a pair of back film pieces by fixing a strip-shaped film piece to the end of one of the back film pieces so that one end is open to form a gap, and then inserting the end of the other back film piece into the gap (Patent Document 2).

[0008] FIG. 3 illustrates the packaging material, in which reference numeral 21 denotes an outer film, 22 denotes a cutting tape serving as a dividing means, 24A and 24B denote a pair of inner film pieces, 25 denotes a strip-shaped film piece, and K denotes a gap.

[0009] In the above-mentioned packaging material, the left and right divided packaging material is pulled left and right, and the packaging material is removed leaving behind the sheet-like food (seaweed) contained in the pocket, and only the sheet-like food (seaweed) remains wrapped on the surface of the rice ball.In this case, however, due to the adhesiveness of the surface of the rice ball, the piece of back film in contact with it may pull the rice ball left and right, which may cause the rice ball to be damaged.

[0010] Therefore, an invention has been proposed in which a pair of back film pieces in the packaging body are folded back on one side to provide a folded surface and the folded surface is brought into contact with the surface of the rice ball, so that when the back film pieces are removed from the rice ball, they are gradually peeled away from the rice ball from the folded surface of the back film pieces, thereby preventing damage to the rice ball (Patent Document 3). [Prior art documents] [Patent documents]

[0011] [Patent Document 1] Utility Model Registration No. 3001212 [Patent Document 2] JP 2004-154064 A [Patent Document 3] 05-060294 DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]

[0012] In the above-mentioned invention, in which a pair of back film pieces have one side folded over to create a folded portion and the folded portion is brought into contact with the surface of the rice ball, the folded end that forms the folded surface tends to swell and float away from the surface of the film it is overlapped on, so there is a concern that moisture (steam) evaporating from the rice ball and oil seeping out from the food may be more likely to enter the pocket portion through the overlapping portion between the back film pieces than if the end of the film piece was in close contact with the rice ball.

[0013] On the other hand, in the above-mentioned invention, overlapping the ends of the back film pieces is an essential configuration because moisture (steam) evaporating from the rice ball and oil seeping out from the food can directly penetrate into the pocket portion. However, there is also concern that the overlapping may prevent the back film piece from being gradually peeled off from the rice ball by being gradually turned up from the folded surface. [Means for solving the problem]

[0014] The present invention has been made with the aim of providing a packaging material for formed cooked rice food which solves the above problems.

[0015] That is, the packaging material for formed cooked rice food of the present invention comprises a front film having a dividing means for dividing the front film in two in the width direction, a pair of back film pieces formed by dividing the back film in two in the width direction, and the pair of back film pieces cover all or part of the front film with their ends overlapping each other near the location corresponding to the dividing means of the front film, and the front film and parts of the back film pieces are joined to form a pocket portion for storing sheet-like food therein, and the surface of the back film piece becomes the surface that comes into contact with the formed cooked rice food. A second back side film piece having a joint portion located rearward is superimposed on the surface of each of the pair of back side film pieces near the end portions so as to be vertically openable and closable with the joint portion as a fulcrum; a front portion of each of the second back side film pieces is folded backward so that the folded portion is located near a portion corresponding to the dividing means of the front side film to form a folded surface; The end of one of the back films located at the upper side in the overlapping portion is inserted between the front surface of the other back film piece and the rear surface of the second back film piece, The folded surface of the second back film piece is characterized in that it comes into contact with the formed cooked rice food.

[0016] The invention described in claim 2 is characterized in that in the shaped cooked rice food packaging material, at least one partial joint is provided on the folded-back surface of the second backing film piece. Effect of the Invention

[0017] The above-mentioned problem of moisture (steam) evaporating from the rice ball and oil seeping out from the food entering the pocket through the overlapping area between the back film pieces, making the sheet-like food contained therein wet or sticky, and the problem of the rice ball being damaged when the adhesive surface of the rice ball causes the rice ball to be pulled left and right by the back film piece in contact with it, are not technically related, but they have in common that they impair the marketability of formed cooked rice foods such as rice balls when they are packaged and distributed. However, there has been no invention that focuses on solving these two problems comprehensively.

[0018] According to the present invention, firstly, the folded surface of each second back film piece that is folded backward so that the front fold portion is positioned near the location corresponding to the dividing means of the front film becomes the contact surface with the formed cooked rice food, and therefore, when the second back film piece is removed from the rice ball, it is gradually peeled away from the rice ball from the folded portion of the second back film piece, thereby preventing damage to the rice ball.

[0019] Secondly, one end of one of the second back film pieces is open between the other back film piece to form a gap, into which the end of the other back film piece is inserted, thereby improving the airtightness of the overlapping area between the film pieces.

[0020] At first glance, the above-mentioned effects seem to be merely a compilation of known inventions. However, in the present invention, the second effect eliminates the need to overlap the ends of the second lining film pieces, so the second lining film piece can be peeled off the rice ball so that it is gradually turned over from the folded-back portion, and effects greater than the sum of the known inventions can be obtained.

[0021] In addition, the second back film piece on one side serves the combined function of improving the airtightness of the overlapping portion of the film pieces and facilitating peeling of the film pieces from the rice ball, and compared to the prior art shown in Figure 3, the only additional member required is the other second back film piece on the other side. Therefore, from the standpoint of design rationalization, an effect is obtained that is greater than the sum of all the known inventions.

[0022] In addition, according to the invention described in claim 2, at least one partial joint is provided on the folded surface of the second back side film piece, so that when the film of the packaging material of the present invention is absorbed and transported, the folded surface of the second back side film piece is prevented from rolling up and impeding transport. [Brief description of the drawings]

[0023] [Figure 1] FIG. 2 is an exploded perspective view of the molded cooked rice food packaging material of the present invention. [Diagram 2] Same as above, cross-sectional view. [Diagram 3] FIG. 1 is a cross-sectional view of a conventional packaging material for formed cooked rice food. [Figure 4] FIG. 1 is a plan view of a conventional packaging material for formed cooked rice food. [Diagram 5] FIG. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] FIG. [Figure 9] FIG. BEST MODE FOR CARRYING OUT THEINVENTION

[0024] Hereinafter, specific examples of the present invention will be described with reference to the accompanying drawings. Here, the embodiment will be described with reference to a packaging material for rice balls wrapped in nori seaweed as an example of a packaging material for formed cooked rice food. Fig. 1 is a perspective view of the packaging material, and Fig. 2 is a cross-sectional view of the packaging material.

[0025] This packaging material for seaweed-wrapped rice balls is constructed by laminating a front film 1 with a heat-sealed layer on the back side and back film pieces 4A, 4B to form a pocket for storing seaweed S inside. The front film 1 is rectangular with four notches at the four corners, and has a dividing means by cutting a strip to divide it into two in the short direction. In this embodiment, a cutting tape 3 fixed to the front film 1 is used as the dividing means, but the dividing means is not limited to the cutting tape as long as it can cut a strip in the front film 1 by pulling it up. Also, in order to make it easier to tear the dividing means (strip tape) when it starts to be pulled up, a pair of notches 2, 2 are provided on the left and right of the starting point of the dividing means at one end of the front film.

[0026] The back film piece is the film that is positioned on the rice ball side during packaging, and is composed of a pair of back film pieces 4A and 4B that are divided into two in the short direction to cover all or part of the front film 1. These film pieces form an overlapping portion where a portion of the film overlaps at a location that corresponds to the dividing means of the front film, and one back film piece 4A overlaps the other back film piece 4B.

[0027] The front film 1 and the back film pieces 4A and 4B are fused and polymerized at heat seal sections H1, H2 around the periphery of the back film, excluding the overlapping areas between the back film pieces, to form a pocket section for storing seaweed S inside.

[0028] In the figure, the reference numerals 5 and 6 denote a pair of second back film pieces constituting the characteristic portion of the present invention. One of the second back film pieces 5 is fused to the surface of the back film piece 4B near the end thereof by a heat seal part H3 with the joint part positioned toward the rear. The second back film piece 5 is folded over the back film piece 4B so as to be able to open and close up and down, with the joint part as a fulcrum, and the front fold part 5X is folded back so as to be positioned near the location of the front film 1 corresponding to the cut tape 3, forming a folded surface 5Y. The other second back film piece 6 is fused to the surface of the back film piece 4A near the end thereof by a heat seal part H4 with the joint part positioned toward the rear. The second back film piece 6 is fused to the surface of the back film piece 4A near the end thereof by a heat seal part H4 with the joint part positioned toward the rear. The second back film piece 6 is fused to the back film piece 4A so as to be able to open and close up and down, with the joint part as a fulcrum, and the front fold part 6X is folded back so as to be positioned near the location of the front film 1 corresponding to the cut tape 3, forming a folded surface 6Y.

[0029] By providing at least one partial joint with the folded surface on the folded surfaces 5Y, 6Y of the second back side film pieces 5, 6, the folded surface of the second back side film piece is prevented from rolling up and impeding transportation when the packaging film is absorbed and transported, and here, dot-shaped heat seal portions H5, H5 are provided at the front and back of each.

[0030] As is clear from the above explanation, in the packaging material of the present invention, there is no need for the folded surfaces 5X, 5Y of the second back film pieces 5, 6 to have the function of preventing moisture (steam) evaporating from the rice ball or oil seeping out from the food from entering the pocket portion through the overlapping portion of the back film pieces, so the second back film pieces do not overlap, and the folded portions of each are butted together or spaced apart, so that the folded portion of the second back film piece can be smoothly peeled off from the rice ball in a gradual manner.

[0031] The method of using the packaging material of the present invention is exactly the same as that of the known packaging material described with reference to Figs. 5 to 9. That is, the bottom of the rice ball is positioned near the center of the front and rear of the packaging material, the rear half of the packaging material covers the back of the rice ball, and then the front half covers the front. In this case, since the rice ball is triangular and the packaging material is rectangular, there are blank areas on the left and right of the packaging material, with the corners of the front short side of the packaging material as vertices. These blank areas are folded back and overlapped on the rear half of the packaging material covering the back of the rice ball, and partially adhered, and a label L is further adhered on top of them to fix the packaged state. When opening the package, the cutting tape 3 applied to the front film 1 is pulled up from the front side of the rice ball using the cuts 2, 2 provided at the end, thereby dividing the front film into left and right parts in order, and the other parts of the packaging material folded over in a position that crosses the path of the cutting tape are also divided. In this case, since the rice ball R side has already been divided into left and right halves by a pair of back film pieces 4A, 4B and second back film pieces 5, 6, the packaging material is ultimately divided into left and right halves, and by pulling it to the left and right, the packaging material is removed leaving only the seaweed S contained in the pocket, and only the seaweed remains wrapped on the surface of the rice ball. [Explanation of symbols]

[0032] 1 Front film 2 Cut 3 Cut Tape 4A Back film piece 4B Back film piece 5 Second back film piece 6 Second back film piece 5X Folded section of second back film piece 6X Folded part of the second back film piece 5Y Folded surface of the second back film piece 6Y Folded surface of the second back film piece H1 Heat seal part H2 Heat seal section H3 Heat seal part H4 Heat seal part H5 Heat seal part

Claims

1. A packaging material for formed cooked rice food, comprising a front film having a dividing means for dividing the front film into two in the width direction, a pair of back film pieces formed by dividing the back film into two in the width direction, and covering all or a part of the front film with the pair of back film pieces while overlapping each other's ends near a portion of the front film corresponding to the dividing means, and joining a portion of the front film and the back film pieces to form a pocket portion for storing a sheet-like food therein, the surface of the back film piece being the surface that comes into contact with the formed cooked rice food, One end of the pair of second back side film pieces is joined to the end of the packaging material on the surface of each of the pair of back side film pieces, so that the second back side film pieces are overlapped so as to open and close in the direction of approaching and separating from the back side film pieces with the above-mentioned joint as a fulcrum, the other end of each of the second back side film pieces is folded back toward the end of the packaging material of each of the pair of back side film pieces so that the folded back portion is located near a portion corresponding to the dividing means of the front side film to provide a folded back surface; The end of one of the back film pieces located on the upper side of the overlapping portion is inserted between the front surface of the other back film piece and the rear surface of the second back film piece, A packaging material for formed cooked rice food, characterized in that the folded surface of the second back film piece is the surface that comes into contact with the formed cooked rice food.

2. 2. The package for formed cooked rice food according to claim 1, wherein the folded surface of the second backing film piece is provided with at least one partial joint.

3. 3. The package for formed cooked rice food according to claim 1 or 2, wherein the formed cooked rice food is rice balls.

4. 4. The package for formed cooked rice food according to claim 1, wherein the sheet-like food is seaweed.

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