Wrapper for rice ball and package of rice ball wrapped with wrapper

Abstract

To provide a packaging material capable of easily performing the opening work of a rice ball package, and the rice ball package packaged in the packaging material.SOLUTION: A rice ball packaging material includes an exterior film that packages an entire rice ball and is provided with a cut tape along a vertical direction at a substantially central portion in a left-right direction, and an inner film that is provided so as to overlap a back side of the exterior film and is configured by overlapping edge portions on a central side in a width direction of the exterior film. In the rice ball packaging material and the rice ball package packaged in the packaging material, the pick-up label has an adhesive part in which an adhesive agent is present on the surface of the sticking side to the outer packaging film, and a pick-up piece part in which the adhesive agent is not present, and is stuck to the outer packaging film so as to cover the tear starting part by the adhesive part.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a rice ball packaging material that packages rice balls and sheet-type food to cover the rice balls in a state where they are separated from each other, and to a rice ball package packaged in this packaging material. [Background technology]

[0002] Conventionally, rice ball packages are packaged in packaging material with the sheet-type food to be placed over the rice ball separated from the rice ball. A known rice ball package has an outer sheet that is provided with a tear-off tape for opening, allowing the packaged material to be easily removed. This packaging material is divided into left and right halves by tearing the outer sheet with the tear-off tape, and the packaging material between the rice ball and the sheet-type food is removed by pulling the divided left and right halves of packaging material to the left and right, allowing the rice ball to be removed from the packaging material while still covered with the sheet-type food (see, for example, Patent Document 1).

[0003] Patent Document 1 discloses a rice ball package comprising a generally rectangular exterior film having an opening strip on its inner surface, and two interior films attached to the left and right edges and top and bottom edges of the exterior film, with one end overlapping the opening strip on the exterior film. This rice ball package can package a triangular rice ball by covering the shape of the triangular rice ball, adhering the left and right corners of the upper and lower halves of the rectangular package to each other, and then folding the attached portion back to the back of the rice ball and adhering it to the surface of the exterior film with a sticker. With this rice ball package, pulling the end of the opening strip on the exterior film from the top of the front side of the triangular rice ball cuts the sticker attached to the exterior film and separates the exterior film into left and right film pieces, allowing the rice ball contained in the rice ball package to be removed while being wrapped in seaweed. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 3061517 Summary of the Invention [Problem to be solved by the invention]

[0005] However, with this type of rice ball packaging, when rice balls are packaged using the rice ball packaging, the left and right corners of the packaging at the opening start end are arranged to overlap with each other near the opening strip located on the back side of the rice ball packaging. Therefore, when opening the rice ball packaging, if the opening strip comes into contact with the overlapping part of the left and right corners of the packaging or the seal adhered thereto, the opening strip gets caught on this overlapping part or the seal, making it impossible to tear the rice ball packaging smoothly.

[0006] The present invention has been made in consideration of the above problems, and its purpose is to provide a rice ball packaging material that can be easily opened, and a rice ball package packaged in this rice ball packaging material. [Means for solving the problem]

[0007] The rice ball packaging material of the present invention is a rice ball packaging material comprising a sheet of exterior film that wraps the entire rice ball and has a cutting tape arranged vertically in approximately the center in the left-right direction, and an inner film that is arranged so as to overlap the back side of the exterior film, wherein the exterior film has a tear initiation portion that has a horizontal cut line that intersects the cutting tape and vertical cut lines connected to both ends of the horizontal cut line, and a pick-up label is affixed to the front side of the exterior film, and the pick-up label has an adhesive portion where an adhesive is present on the surface that is attached to the exterior film, and a non-adhesive portion where no adhesive is present on the surface that is attached to the exterior film, and is affixed to the exterior film so that the adhesive portion covers the tear initiation portion.

[0008] In another aspect of the rice ball packaging material of the present invention, the tear initiation portion has an extended cut line extending from the horizontal cut line to the left and right outside of the vertical cut line.

[0009] In another aspect of the rice ball packaging material of the present invention, the non-adhesive portion is configured to form a tab with one side connected to the adhesive portion, the tab label is attached to the outer film so that the non-adhesive portion is positioned on the opposite side of the tearing direction of the cut tape from the tear initiation portion, and a breaking portion is provided in the adhesive portion from the non-adhesive portion along the tearing direction.

[0010] The rice ball packaging body packaged in the rice ball packaging material of the present invention is a rice ball packaging body in which a triangular rice ball that is approximately triangular when viewed from the front is packaged using the rice ball packaging material described above, and the triangular rice ball is packaged in the rice ball packaging material so that the cutting tape is positioned in the center of the left and right sides of the front side of the triangular rice ball and the tear start portion is positioned on the front side of the triangular rice ball. [Effects of the Invention]

[0011] According to the rice ball packaging material of the present invention, the rice ball packaging material comprises a sheet of exterior film that wraps the entire rice ball and has a cutting tape arranged vertically in approximately the center in the left-right direction, and an inner film that is arranged so as to overlap the back side of the exterior film, wherein the exterior film has a tear start portion that has a horizontal cut line that intersects the cut tape and vertical cut lines connected to both ends of the horizontal cut line, and a gripping label is affixed to the front side of the exterior film, and the gripping label has an adhesive portion where an adhesive is present on the surface that adheres to the exterior film, and a non-adhesive portion where no adhesive is present on the surface that adheres to the exterior film, and the gripping label is affixed to the exterior film so that the adhesive portion covers the tear start portion, so that when the rice ball is packaged, tearing of the exterior film of the packaging material can be started from the position of the gripping label and can proceed smoothly up to the tear end located above the back side of the exterior film, and the rice ball packaging material in which the rice ball is packaged can be easily opened.

[0012] In another aspect of the rice ball packaging material of the present invention, the tear initiation portion has an extended cut line that extends from the horizontal cut line to the left and right of the vertical cut line, so that when opening the rice ball packaging body containing the rice ball in the packaging material, after the outer film is divided into left and right film pieces with cutting tape, when the left and right film pieces are pulled left and right, stress is concentrated on the extended cut line and the outer film is easily torn in the left and right direction, making it possible to smoothly open the rice ball packaging body.

[0013] In another aspect of the rice ball packaging material of the present invention, the non-adhesive portion is configured to form a tab with one side connected to the adhesive portion, and the tab label is attached to the outer film so that the non-adhesive portion is positioned on the opposite side of the tearing direction of the cut tape from the tear initiation portion, and a tear portion is provided in the adhesive portion along the tearing direction from the non-adhesive portion, so that when the tab portion is pulled in the tearing direction, the tab label tears along the tear line and easily reaches the bottom end of the tab label together with the tab portion, making it easy to open the rice ball packaging.

[0014] According to the rice ball packaging body packaged in the rice ball packaging material of the present invention, the rice ball packaging body is a triangular rice ball that is approximately triangular when viewed from the front, packaged in the rice ball packaging material described above, and the triangular rice ball is packaged in the rice ball packaging material so that the cutting tape is positioned in the center of the left and right sides of the front side of the triangular rice ball and the tear start part is positioned on the front side of the triangular rice ball, making it easy to open the rice ball packaging body. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a plan view of a rice ball packaging material according to one embodiment of the present invention. [Figure 2] 1 is a plan view of an exterior film of a rice ball packaging material according to one embodiment of the present invention. FIG. [Figure 3] FIG. 2 is a plan view of the inner film of the rice ball packaging material according to one embodiment of the present invention. [Figure 4] 2 is a cross-sectional view taken along the line AA in FIG. 1. [Figure 5] 1A and 1B are diagrams showing a gripping label of a rice ball packaging material according to one embodiment of the present invention, where (a) is a front view showing the gripping label with a break line, and (b) is a front view showing the gripping label without a break line. [Figure 6]1A is a perspective view of a rice ball package according to one embodiment of the present invention before and after a gripping label is attached, and FIG. [Figure 7] 1 is an explanatory diagram showing a method for opening a rice ball package according to one embodiment of the present invention. [Figure 8] 1 is a front view of a rice ball packaging body according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0016] The present invention relates to a rice ball packaging material that can easily open a rice ball-wrapped package by devising a cutting tape for tearing the packaging material, a tab label, and an outer film that constitutes the packaging material, and the rice ball package itself, and to a rice ball package packaged in the rice ball packaging material.

[0017] The configuration of a rice ball packaging material according to an embodiment of the present invention and a rice ball package packaged in the rice ball packaging material will be described with reference to the drawings. FIG. 1 is a plan view of a rice ball packaging material according to an embodiment of the present invention. FIG. 2 is a plan view of an exterior film of a rice ball packaging material according to an embodiment of the present invention. FIG. 3 is a plan view of an inner film of a rice ball packaging material according to an embodiment of the present invention. FIG. 4 is a cross-sectional view taken along line AA in FIG. 1. FIG. 5(a) is a front view of a gripping label of a rice ball packaging material according to an embodiment of the present invention. FIG. 5(b) is a front view showing another aspect of a gripping label of a rice ball packaging material. FIG. 6(a) is a perspective view showing a rice ball package according to an embodiment of the present invention before a gripping label is attached. FIG. 6(b) is a perspective view showing a rice ball package according to an embodiment of the present invention after a gripping label is attached. FIG. 7 is an explanatory diagram showing a method of opening a rice ball package according to an embodiment of the present invention. FIG. 8 is a front view of a rice ball package according to an embodiment of the present invention. In the description of this embodiment, the left-right direction in Fig. 1 is the width direction (left-right direction) of the rice ball packaging material 2, and the up-down direction in Fig. 1 is the length direction (up-down direction) of the rice ball packaging material 2. Furthermore, the front surface of the rice ball packaging material 2 refers to the surface that will be on the outside when the rice ball R is packaged, and the back surface of the rice ball packaging material 2 refers to the surface that will be on the inside when the rice ball R is packaged.

[0018] The rice ball packaging material 2 used to package the rice ball R according to this embodiment has an overall roughly rectangular shape with the vertical direction as the longitudinal direction, with a constant width in the vertical middle section and narrower upper and lower ends with slanted left and right sides that gradually narrow from the vertical center to the outside. The rice ball packaging material 2 can be obtained, for example, by cutting a roll-shaped packaging body made by winding a continuous packaging material in which the section corresponding to the rice ball packaging material 2 is continuous in the vertical direction. As shown in FIG. 1, the rice ball packaging material 2 has an exterior film 4 that packages the entire rice ball R and an inner film 3 that is provided so as to overlap the exterior film 4.

[0019] The rice ball R according to this embodiment will be described by taking as an example a triangular rice ball formed to have a substantially triangular shape when viewed from the front.

[0020] As shown in Fig. 2, the exterior film 4 is formed in a substantially rectangular shape and has a thickness of 30 to 50 µm. The exterior film 4 is made of oriented polypropylene (OPP), which has excellent impact resistance and airtightness, and is transparent and has excellent printability, allowing the stored food ingredients to be seen.

[0021] Furthermore, the exterior film 4 has printed on its surface the names of the products representing the food ingredients contained therein, the name of the company selling the products, various pop-ups, and other information necessary for selling the food products.

[0022] The exterior film 4 has a cutting tape 5 extending from approximately the center of the upper edge 4a to approximately the center of the lower edge 4b. The cutting tape 5 is made of a synthetic resin such as PET and has a substantially uniform width. The cutting tape 5 is fixed to the back surface of the exterior film 4 by means of heat sealing or the like.

[0023] Additionally, the exterior film 4 has two support tapes (not shown) spaced a certain distance apart on the left and right of the cutting tape 5. The support tapes are fixed to the back surface of the exterior film 4 by means of heat sealing or the like, from the upper edge 4a to the lower edge 4b ​​of the exterior film 4. The support tapes are arranged approximately parallel to the cutting tape 5. As described above, the areas where the left and right support tapes are arranged, together with the area where the cutting tape 5 is arranged, serve to ensure the rigidity of the roll-shaped packaging body in the roll-shaped packaging body made by continuing the rice ball packaging material 2.

[0024] The exterior film 4 has a tear initiation portion 6 closer to the upper edge 4a than the approximate center in the longitudinal direction. In this embodiment, the tear initiation portion 6 is located in the approximate center in the left-right direction of the exterior film 4, at a position moved from the upper edge 4a toward the lower edge 4b ​​along the longitudinal direction of the exterior film 4 by approximately 1 / 4 of the total length. Note that the tear initiation portion 6 is located in the approximate center of the front side of the rice ball R when the rice ball R is packaged.

[0025] The tear initiation portion 6 has a horizontal incision line 7 along the left-right direction that divides the cutting tape 5 into upper and lower parts, a pair of vertical incision lines 8, 8 extending in a direction parallel to the cutting tape 5 (up-down direction) at both ends of the horizontal incision line 7, and an extended incision line 9 whose base end is connected to the vertical incision line 8 and extends along the left-right direction toward the outside in the left-right direction of the exterior film 4. In this embodiment, the extended incision line 9 is an extension of the horizontal incision line 7 toward the outside in the left-right direction, and its base end side (inner in the left-right direction) is continuous with the intersection X of the horizontal incision line 7 and the vertical incision line 8.

[0026] The horizontal incision line 7 extends linearly in a direction perpendicular to the cutting tape 5 and is longer than the left-to-right width of the cutting tape 5. In other words, the cutting tape 5 is provided on the back surface of the exterior film 4 in a state in which the horizontal incision line 7 divides the cutting tape 5 into an upper cutting tape 5a and a lower cutting tape 5b. Note that, although the horizontal incision line 7 is illustrated as extending linearly perpendicular to the cutting tape 5, it may be formed in either a linear or curved shape as long as it is configured to divide the cutting tape 5 fixed to the exterior film 4 into two, upper and lower. Furthermore, the horizontal incision line 7 does not need to extend in a direction perpendicular to the cutting tape 5, and may be formed obliquely at a certain inclination angle relative to the left-to-right direction of the exterior film 4.

[0027] The vertical cut lines 8 are provided at both ends of the horizontal cut lines 7 and extend linearly in a direction parallel to the cutting tape 5. The vertical cut lines 8 are connected to the horizontal cut lines 7 at approximately the center in the longitudinal direction. In other words, the vertical cut lines 8 are provided in a state in which they extend by approximately the same length on both the upper and lower sides from the formation position of the horizontal cut lines 7. In other words, the horizontal cut lines 7 and the vertical cut lines 8, 8 are formed in a state in which they are connected to each other so as to form a roughly "H" shape.

[0028] The extended cut lines 9 are continuous with the intersections X of the horizontal cut lines 7 and the vertical cut lines 8, and extend linearly from the intersections X toward the left-right outer sides of the exterior film 4 along the left-right direction of the exterior film 4. The extended cut lines 9 do not need to extend from the intersections X toward the left-right outer sides, and may be located anywhere as long as their base ends are connected to the vertical cut lines 8.

[0029] The tear initiation portion 6 is formed as described above, and functions as an opening starting point for tearing the packaging material 2 to the left and right along the cutting tape 5 together with the tab label 10 described below, to expose the contents from the package 1. In particular, the horizontal cut line 7 and the vertical cut line 8 function as opening starting points for the packaging material 2 for dividing the exterior film 4 into two, left and right pieces, and the extended cut line 9 also functions as an opening starting point for removing the left and right film pieces 4d, 4d after the exterior film 4 has been divided into left and right film pieces 4d, 4d by the cutting tape 5.

[0030] As shown in FIGS. 6 and 8, a tab label 10 is attached to the surface of the exterior film 4 so as to cover the tear start portion 6.

[0031] The tab label 10 has an adhesive portion 11 with an adhesive on the back surface, which is the surface that adheres to the exterior film 4, and a tab portion 12 as a non-adhesive portion with no adhesive on the back surface, and is partially attached to the exterior film 4. In the tab label 10, the tab portion 12 is provided so as to form a tab with one side connected to the adhesive portion 11.

[0032] As shown in Fig. 5(a), the tab label 10 has an adhesive portion 11 as a display portion on the front side of which information such as opening instructions and product name is printed. The tab label 10 is formed into a substantially rectangular shape with the vertical direction as the longitudinal direction by the adhesive portion 11 and the tab portion 12. In Fig. 5, the adhesive portion 11 is shown as a shaded portion.

[0033] The adhesive portion 11 has a main body portion 11a, which is the left-right middle portion of the tab label 10 and forms the majority of the lower portion, and side portions 11b, 11b located on both left and right sides of the main body portion 11a and forming the left and right edges of the tab label 10. The main body portion 11a is a rectangular portion with the vertical direction as the longitudinal direction, and the left and right side portions 11b are rectangular portions narrower than the main body portion 11a. In this embodiment, the side portions 11b are formed to have a width that is approximately 1 / 6 the left-right width of the main body portion 11a. The adhesive portion 11 is formed into a roughly concave shape by the main body portion 11a and the left and right side portions 11b, 11b.

[0034] The adhesive portion 11 also has a break portion 11c at the connection between the main body portion 11a and the left and right side portions 11b, 11b. The break portion 11c is formed as a break line formed by a linear perforation extending from the upper connection end LU of the main body portion 11a and the side portions 11b to the lower connection end LD. The break portion 11c is formed to extend along the left and right ends 11d, 11d of the side portions 11b, which form the left and right edges of the tab label 10. The break portion 11c extends along the boundary between the main body portion 11a and the left and right side portions 11b, 11b. While the break portion 11c is formed as a perforation in this embodiment, the break portion 11c may also be a portion formed partially in the longitudinal direction of the tab label 10 at the boundary between the main body portion 11a and the side portions 11b, 11b, such as a half-cut, for example. The tearing portion 11c may be formed in any shape as long as it can be easily torn when the tab label 10 is torn to the width of the tab portion 12.

[0035] The adhesive portion 11 has the entire back surface of the main body portion 11a and the side portions 11b, 11b as an attachment surface. In other words, the adhesive portion 11 is configured so that the entire back surface of the main body portion 11a and the side portions 11b, 11b can be attached.

[0036] A tab 12 is provided between the upper portions of the left and right side portions 11b, 11b of the adhesive portion 11 thus formed. The lower end of the tab 12 is connected to the upper end of the main body portion 11a. The left and right width of the tab 12 is formed to be approximately the same as the width between the left and right break portions 11c, 11c. That is, the tab 12 is a piece partially separated from the adhesive portion 11 by forming incisions 12a on both the left and right sides of the upper end of the rectangular sheet material constituting the tab label 10, which are aligned with the width of the main body portion 11a, and is formed to be the same width as the main body portion 11a. The back side of the tab 12 is configured so that it does not have a non-adhesive adhesive. Therefore, the tab 12 is configured to float above the exterior film 4 and be grasped when the tab label 10 is attached to the exterior film 4. Although the tab label 10 according to this embodiment is exemplified as a rectangular label, it may be in various shapes such as a circular or oval shape as long as it does not interfere with opening the packaging material 2.

[0037] Furthermore, the tearable label 10 is configured to have a tearable portion 11c in the adhesive portion 11, so that when the tearable portion 12 is pulled in the tearing direction from the boundary B connecting the adhesive portion 11 to the tearable portion 12 toward the lower end of the adhesive portion 11, the main portion 11a can be easily separated from the side portions 11b, 11b. In other words, the tearable label 10 has a tearable portion 11c formed to have substantially the same left and right width as the tearable portion 12, making it easy to open the packaging material 2. Note that, although the present embodiment illustrates the tearable label 10 having a tearable portion 11c, the configuration of the tearable label 10 is not limited thereto. For example, as shown in FIG. 5(b), the left and right side portions 11b may not be provided, and the adhesive portion 11 and the tearable portion 12 may have substantially the same width, so that the entire tearable label 10 can be peeled off from the surface of the exterior film 4 when the package 1 is opened.

[0038] The tab label 10 is attached to the exterior film 4 so that the tab portion 12 is positioned on the opposite side (upper side) of the tear start portion 6 from the tearing direction of the cut tape 5. In this embodiment, the tab label 10 is attached to the exterior film 4 in a position such that the upper end of the main body portion 11a of the adhesive portion 11 covers the entire horizontal cut line 7, the left and right vertical cut lines 8, 8, and the extended cut line 9 that form the tear start portion 6.

[0039] As shown in Fig. 3, the inner film 3 is made up of two inner film pieces 3b, 3b, and is made of the same material as the exterior film 4. The inner film piece 3b is formed so that its left-right width is slightly longer than half the left-right width of the exterior film 4, and its length in the up-down direction is approximately the same as that of the exterior film 4. The left and right inner film pieces 3b, 3b have overlapping portions 3a where parts (the left and right inner edge portions) are overlapped.

[0040] The inner film 3 is the film that comes into contact with the rice ball R when the rice ball R is packaged in the packaging material 2. The left and right inner film pieces 3b, 3b are placed inside the exterior film 4 with their edges on the center side in the width direction of the exterior film 4 overlapping each other.

[0041] As shown in Fig. 1, the inner film 3 and the outer film 4 are welded at the left and right edge welds ML and MR on both the left and right sides, and at the upper and lower edge welds MU and MD on both longitudinal sides. Therefore, the packaging material 2 is formed into a generally bag-like shape by heat-sealing the periphery of the outer film 4 and the inner film 3, except for the overlapping portion 3a where the left and right inner film pieces 3b, 3b overlap. Sheet-type food 13 is stored in the bag-like space formed by the outer film 4 and the inner film 3. In Fig. 1, the welds between the left and right inner film pieces 3b, 3b and the outer film 4 are indicated by the shaded areas.

[0042] In this embodiment, the left end welded portion ML and the right end welded portion MR are a plurality of welded portions of a predetermined shape, such as a square shape or a shape with portions protruding inward from a square shape to the left or right, and are provided at predetermined intervals in the up-down direction. Also, the upper end welded portion MU and the lower end welded portion MD are linear welded portions that run along the left-right direction, two on each side, excluding the left-right center portions.

[0043] The sheet food 13 is exemplified by a sheet of seaweed that is approximately rectangular in plan view. However, the sheet food 13 is not particularly limited, and may be any food formed into a sheet, such as kelp, dried bonito flakes, or a thin omelet formed from gelatin. The width of the sheet food 13 in the left-right direction (short direction) is the same as or slightly longer than the length of one side of the bottom of the rice ball R, and the length of the sheet food 13 in the up-down direction (longitudinal direction) is a length that covers the front, bottom, and back of the rice ball R. In other words, the sheet food 13 is formed to be large enough to encase the entire rice ball R so that the rice grains that make up the rice ball R are not visible.

[0044] In this way, the packaging material 2 is composed of a piece of exterior film 4 with a cutting tape 5 and two pieces of inner film 3b, 3b that are arranged so as to overlap the back side of the exterior film 4, and a tear start portion 6 formed by a cut line that penetrates the exterior film 4 is provided at approximately the center of the surface of the exterior film 4, and a gripping label 10 is attached so as to cover this tear start portion 6, and by placing a triangular rice ball R inside it, it becomes a rice ball package 1.

[0045] The rice ball packaging body 1 configured in this manner has a gripping label 10 provided at approximately the center of the surface, and by pulling the gripping piece portion 12 of the gripping label 10 in the tearing direction, the tearing of the gripping label 10 along the breaking portion 11c easily reaches the connecting lower end portion LD, the outer film 4 is torn together with the cutting tape 5, the packaging material 2 is divided into two, and by pulling out the divided left and right packaging materials 2, the rice ball R stored therein can be easily removed.

[0046] Furthermore, the exterior film 4 to which the cutting tape 5 is affixed does not have any part with a product label attached in the direction of extension of the cutting tape 5 other than the laminated part of the exterior film 4 and the tab label 10 which serves as the opening start point for the exterior film 4, so the tearing operation of the exterior film 4 with the cutting tape 5 can proceed smoothly from the tear start part 6 of the exterior film 4 to the lower edge 4b ​​of the exterior film 4. The rice ball package 1 formed by wrapping the rice ball R in the packaging material 2 configured in this way can be easily opened.

[0047] Next, we will explain the process of packaging rice balls R using the above-mentioned rice ball packaging material 2 and completing the rice ball packaging body 1. In the rice ball packaging body 1 packaging rice balls R, the surface having the tear start part 6 will be referred to as the front surface, and the surface sandwiching the rice ball R and located behind the tear start part 6 will be referred to as the rear surface.

[0048] First, as shown in Figures 1 and 4, the packaging material 2 containing the sheet-type food 13 between the outer film 4 and the inner film 3,3 is placed with the inner film 3,3 facing back, and the back side of the rice ball R is placed on this inner film 3,3.

[0049] Next, the lower half of the packaging material 2 in the lengthwise direction is lifted and folded along the bottom surface of the rice ball R, while the packaging material 2 is placed over the surface of the rice ball R. Next, the upper corners CU, CU of the packaging material 2 are folded along the left and right sloping surfaces of the rice ball R, respectively, and then the lower corners CD, CD of the packaging material 2 are folded along the sloping surfaces of the rice ball R, respectively, and then the overlapping portion of the upper joint JU and the lower joint JD of the packaging material 2, located at the top of the triangle, are clamped and fixed from the left and right near the top of the rice ball R using a means such as heat sealing, and the rice ball R contained inside is isolated from the outside, completing the rice ball package 1 as shown in Figure 8.

[0050] In the rice ball packaging 1 formed in this manner, the bottom corners CD, CD of the packaging material 2 are placed on the front side near the top of the rice ball R, overlapping the top of the rice ball R, and the middle corners CM, CM of the packaging material 2 are placed near the lower left and right corners of the rice ball R, overlapping the bottom corners CD, CD of the packaging material 2. At this time, the bottom corners CD, CD of the packaging material 2, which are folded along the inclined surfaces of the rice ball R, are adhesively fixed to the surface of the exterior film 4 by the side portions 11b of the tab label 10. The middle corners CM, CM are adhesively fixed to the surface of the exterior film 4 by a seal S. The seal S may be thermally welded by heat sealing, or any other means may be used as long as the exterior film 4 and the middle corners CM, CM are adhesively fixed. In addition, the rice ball packaging 1 has a tab label 10, which is used to start tearing the packaging material 2, located approximately in the center of the front side of the rice ball packaging 1.

[0051] In this way, in the rice ball packaging body 1 in which the rice ball R is packaged in the packaging material 2, there are no overlapping parts of the product label or the exterior film 4 in the extension direction of the cutting tape 5 provided on the exterior film 4 that would hinder the cutting of the exterior film 4, so the rice ball packaging body 1 can be opened smoothly.

[0052] Furthermore, the rice ball packaging 1 according to this embodiment has a pick-up label 10 printed with letters, designs, patterns, etc. representing the product on the front side, i.e., the side where the tear start portion 6 is formed, and a quality label listing the names of ingredients, expiration date (or best before date), manufacturer, etc. printed on the back side of the rice ball packaging 1. Note that in this embodiment, an aspect has been described in which letters, designs, patterns, etc. representing the product are printed on the pick-up label 10, but as mentioned above, product information may also be printed directly on the exterior film 4.

[0053] Next, a method for opening the rice ball packaging 1 will be described. As shown in Fig. 7, first, the tab portion 12 of the tab label 10 is pinched and pulled downward along the tear portion 11c of the tab label 10. At this time, the adhesive provided on the back surface of the adhesive portion 11 of the tab label 10 is displaced downward while adhering the portion of the exterior film 4 that is along the lower portion of the horizontal cut line 7 of the tear initiation portion 6, and tearing of the exterior film 4 begins along with the tab label 10. At this time, when the tab portion 12 begins to be pulled downward, tearing of the exterior film 4 begins along the vertical cut lines 8, 8 provided on the left and right ends of the horizontal cut line 7 of the tear initiation portion 6 of the exterior film 4. In other words, stress caused by displacing the tab portion 12 downward is concentrated at the vertical cut lines 8, 8, and tearing of the exterior film 4 can easily begin.

[0054] Then, the tab portion 12 moves in the tearing direction while being guided by the breaking portion 11c provided on the tab label 10, and when the tab portion 12 reaches the bottom of the tab label 10, the tab portion 12 tears the exterior film 4 along the cutting tape 5 integrally provided on the exterior film 4 to the back side of the rice ball package 1, and the exterior film 4 is divided into left and right film pieces 4d, 4d. At this time, the film piece 4d consists of the film piece 4d of the torn exterior film 4 and the inner film piece 3b of the inner film 3. Because the inner film pieces 3b, 3b have their peripheral edges welded to the exterior film 4 except for the overlapping portion 3a, as the exterior film 4 is divided into left and right film pieces 4d, 4d, the inner film pieces 3b, 3b welded to each film piece 4d, 4d, move in a manner that follows the movement of each film piece 4d, 4d. Therefore, when the outer film 4 is divided into two, the entire packaging material 2 is divided into two halves, left and right, and by pulling the film pieces 4d, 4d that make up the left and right packaging materials 2 divided into left and right halves in the direction in which the film pieces 4d, 4d move apart, the rice ball R can be covered with the sheet-like food 13.

[0055] In this way, when the outer film 4 constituting the packaging material 2 containing the rice ball R is divided into left and right film pieces 4d, 4d with the cutting tape 5, the rice ball packaging body 1 can be smoothly opened because it is configured to seal the rice ball R without any overlapping parts of the packaging material 2 that would hinder the division, or without any parts other than the outer film 4, such as a product label, being placed on the tearing path of the cutting tape 5.

[0056] For example, if the tear-start portion of the exterior film is only the film portion and a label is present along the tear-start portion along the cutting tape, resistance from the label will be generated as the packaging material is torn. This resistance generated when the packaging material is torn can cause stress that can lead to defects such as deformation of the rice ball or leakage (protrusion) of the contained ingredients. In this regard, the rice ball packaging 1 according to this embodiment has a configuration in which a tab label 10 is attached to the tear-start portion 6, so that the tear-start portion of the packaging material is the portion where the tab label 10 is attached to the exterior film 4, and both the exterior film 4 and the tab label 10 are ruptured from the start of the tear. This allows the packaging material to be torn smoothly without resistance, preventing defects such as deformation of the rice ball and ensuring good openability.

[0057] Furthermore, by configuring the middle corners CM, CM that make up the rice ball packaging body 1 to be adhered to the exterior film 4 with a seal S, and the bottom corners CD, CD to be adhered to the exterior film 4 with the side portions 11b, 11b of the tab label 10, the risk of the packaging material 2 being unintentionally damaged during transportation of the rice ball packaging body 1 and exposing the rice ball R or sheet-like food 13 to the outside can be reduced as much as possible.

[0058] It should be noted that the present invention is not limited to the above-described embodiments, but also includes configurations in which the components disclosed in the above-described embodiments are substituted with each other or the combinations are changed, known inventions, and configurations in which the components disclosed in the above-described embodiments are substituted with each other or the combinations are changed, etc. Furthermore, the technical scope of the present invention is not limited to the above-described embodiments, but extends to the matters set forth in the claims and their equivalents. [Explanation of symbols]

[0059] R Onigiri 1. Onigiri packaging 2 Packaging material 2a Film piece 3 Inner film 3a Polymerization part 3b Film strip 4. Exterior film 4d film strip 5 Cut Tape 6. Starting point of tear 7 Crosscut line 8 Vertical cut line 9 Extended cut line 10 Picking Label 11 Adhesive part 11a Main body 11b Side part 11c Break 11d Left and right ends 12. Knob 12a notch 13 Sheet foods ML Left end welded part MR right side welded part JU upper joint JD lower joint

Claims

1. A sheet of exterior film that wraps the entire rice ball and has a cutting tape provided vertically in the approximate center in the left-right direction; An inner film provided so as to overlap the back side of the exterior film, The exterior film is provided with a tear initiation portion having a horizontal cut line intersecting the cutting tape and vertical cut lines connected to both ends of the horizontal cut line, A tab label is attached to the front side of the exterior film, The rice ball packaging material is characterized in that the pick-up label has an adhesive portion where an adhesive agent is present on the surface that is attached to the exterior film, and a non-adhesive portion where no adhesive agent is present on the surface that is attached to the exterior film, and is attached to the exterior film so that the adhesive portion covers the tear start portion.

2. 2. The rice ball packaging material according to claim 1, wherein the tear initiation portion has an extension cut line extending from the horizontal cut line to the outside in the left and right direction of the vertical cut line.

3. The non-adhesive portion is provided so as to form a tab having one side connected to the adhesive portion, The tab label is attached to the exterior film such that the non-adhesive portion is positioned on the opposite side of the tearing start portion to the tearing direction of the cut tape, 3. The rice ball packaging material according to claim 1, wherein the adhesive portion has a tearing portion extending from the non-adhesive portion along the tearing direction.

4. A rice ball packaging body in which a triangular rice ball having a substantially triangular shape in front view is packaged using the rice ball packaging material according to any one of claims 1 to 3, The rice ball packaging body is characterized in that the triangular rice ball is packaged in the rice ball packaging material so that the cutting tape is positioned in the center of the left and right sides of the front side of the triangular rice ball and the tear start part is positioned on the front side of the triangular rice ball.

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