JP5165516B2 - Rice ball packaging film and packaging rice ball - Google Patents

Description

The present invention relates to a rice ball packaging film and a packaging rice ball. More specifically, the present invention relates to a rice ball packaging film that can be easily and inexpensively produced, and a packaging rice ball using the same, which can easily peel the rice ball packaging film from the rice ball.

 Packaging rice balls recently sold at convenience stores, etc. are separated by joining a pair of exterior films polymerized in such a way that they can be split by peeling off the cut tape, and the exterior film and the outer peripheral edge of the interior film. In general, laver is stored in a hollow portion formed between a pair of interior films that can be polymerized. When eating this packaged rice ball, after peeling off the cut tape, the packaging film is divided into left and right and peeled off from the rice ball. The method of peeling off the packaged rice ball film has also been improved and improved so that it can be easily peeled off. However, it is still complicated to peel off the packaging film after peeling off the cut tape, and it may be difficult for infants and the elderly to eat the packaging rice balls.

In Patent Document 1, in order to avoid the complexity of using the above-mentioned cut tape, an adhesive layer is provided on the left and right exterior films instead of the cut tape, and the left and right exterior films are adhered, and simply provided with finger insertion holes. A rice ball packaging film is disclosed that can be separated and peeled by pulling one end of the outer packaging film. Further, in Patent Document 2, laver is put into a bag-like storage portion formed by an exterior film having a perforation in the center and a pair of isolation films without using a cut tape, and on the isolation film. Wrapped rice balls are wrapped in a triangular shape with a wrapping film, and when eating, the exterior film can be separated with the isolation film at the perforated part, leaving nori and rice balls, and simply folding the corners of the nori A rice ball packaging film that can be easily eaten as a wrapped rice ball is described.
JP 2007-295866 A Japanese Utility Model Publication No. 61-194658

However, although the rice ball packaging film disclosed in Patent Document 1 is excellent in that film peeling is simplified, it is troublesome to provide an adhesive layer on the left and right exterior films for bonding, which reduces costs. It is considered that there are disadvantages such as not being necessary and providing a finger insertion hole because a considerable force is required to peel off the left and right exterior films. Further, the rice ball packaging film disclosed in Patent Document 2 is excellent because it can be separated only by perforation without using a cut tape, but it is troublesome to wind seaweed by hand. It is not generalized for reasons such as.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and is a rice ball packaging film that can be easily and inexpensively produced, and a packaging rice ball using the same. provide.

The present invention is as follows.
1. An exterior film (11) that can be divided at the center in the width direction and a pair of interior films (21a, 21b) that are detachably overlapped at the center in the width direction. A hollow portion (40) for housing the laver formed between the outer film (11) and the inner film (22a, 22b) by integrally joining the outer peripheral edge portions (22a, 22b) of the film. In the rice ball packaging film (1) provided,
The exterior film includes a folded portion (13) provided with a plurality of folds (W, X, Y, Z) in the longitudinal direction at the center in the width direction,
The folded portion (13) provided in the exterior film is provided with a fold (X) and a fold (Y) in a front view, and a fold (Z) in a rear view, and the folded portion constituting the fold (W) is the fold. Inscribed in the folded portion constituting (Y),
A rice ball packaging film, wherein a slit (S) for dividing the outer film (11) is provided along the fold (X).
2. The slits (S) for dividing the exterior film (11) provided along the fold line (X) are each from both ends of the exterior film (11) to each of both ends of the slit (S). Rice ball packaging film with a distance of 20 mm to 50 mm.
3. A rice ball packaging film having perforations (M) connected to both ends of the slit (S).
4). The length of each said perforation (M) is a rice ball packaging film which is 20 mm-50 mm.
5. Packaging rice balls characterized by using the above-mentioned rice ball packaging film.

The rice ball packaging film of the present application (hereinafter also referred to as “wrapping film”) is simply one end (or both ends) of the handle portion of the packaging film, without tearing off the cut tape, unlike the conventional packaging film, when eating rice balls. ) Can be easily peeled from the packaging film. Moreover, since it is not necessary to provide a cut tape, the packaging film can be manufactured easily and inexpensively, so that the cost can be reduced. As a result, the cost of packaging rice balls can be reduced. In addition, the slits for separating and peeling the packaging film from the rice balls are arranged along the creases provided in the folded portion provided in the exterior film, so that dust does not enter from the slits and is hygienic. is there.

In addition, the slit for dividing the exterior film and peeling the packaging film from the rice ball is a slit when the distance from each end of the exterior film to each end of the slit is 20 mm to 50 mm. Since the packaging film can be easily divided, the packaging rice ball using the packaging film provided with the packaging film can easily peel the packaging film from the rice ball.
Furthermore, when the perforation is provided connected to the slit, the packaging film can be easily separated from the rice ball because the exterior film can be divided along the perforation when the slit is reinforced and the exterior film is divided. .

Furthermore, when the perforation is 20 mm to 50 mm, the slit film is properly reinforced and the slit length is also appropriate, and the exterior film can be easily divided. Therefore, the packaging film provided with the exterior film Packaging rice balls using can easily peel the packaging film from the rice balls.
Since the packaging rice ball of the present invention uses an inexpensive rice ball packaging film, the cost of the packaging rice ball can be reduced, and the packaging film can be easily separated and separated from the rice ball when eaten.

Unlike the conventional packaging film, the rice ball packaging film of the present invention does not use a cut tape. Therefore, the structure is simple and easy to manufacture. Moreover, the packaging rice ball which used the packaging film of this invention should just pull the handle part provided in the packaging film to one (or both) in order to peel a rice ball from a packaging film. The rice balls can be easily and easily peeled off from the packaging film due to the slits provided in the exterior film constituting the packaging film. Therefore, there is no need to provide a cut tape as in the prior art. For this reason, cost reduction can be achieved.

In addition, the slit for separating and peeling the packaging film from the rice ball is provided with a folded portion by folding the film back to the exterior film, and is provided along the crease provided in the folded portion. It is hygienic without intrusion. The rice ball packaging film 1 of the present invention is composed of an exterior film 11 and a pair of interior films 21a and 21b. Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

[Exterior film]
FIG. 1 shows a front view of the rice ball packaging film 1 of the present application. This figure is the same as the front view of the exterior film 11. The shape of the exterior film 11 is substantially the same rectangle as a known packaging film, and a trapezoidal handle portion 12 for peeling the packaging film from the rice ball is provided on both long sides. Moreover, these sizes are also substantially the same as a well-known packaging film, and a rectangle is about 140 mm x 240 mm. The size of the trapezoidal part is as follows. The bottom side is 200 mm, the top side is 160 mm, and the height is 20 mm. This size can be appropriately changed depending on the shape and size of the rice balls. This material can also be a known material such as polypropylene. For this reason, the rice ball packaging machine used in the prior art can be directly applied to the production of the packaging rice ball according to the present invention.

The exterior film 11 includes a folded portion 13, and the folded portion 13 has folds W, X, Y, and Z. As shown in FIG. 1, only the X and Y are visible in the fold line when viewed from the front. FIG. 2 is a rear view of the exterior film 11. As shown in FIG. 2, only Z is visible from the back side. FIG. 3 is a developed view of the folded portion 13 of the exterior film 11. As shown in this figure, the folds W, X, Y, and Z are provided in the vertical direction at the central portion of the lateral width of the exterior film 11. The slit S is provided along the fold line X and is positioned at the approximate center of the lateral width of the exterior film 11. A cross section of the folded portion 13 is shown in FIG.

If the folding part 13 can be produced in the shape shown in FIG. 4, the intervals between the folds W, X, Y, and Z are not particularly limited, but are preferably equally spaced in consideration of ease of manufacture. More preferably, the intervals between the creases W, X, Y, and Z are equal intervals, and the intervals are 7 mm to 15 mm. If the thickness is less than 7 mm, the exterior film 11 may be separated by a small amount of external force F1 and / or F2, which may make it difficult to manufacture a packaged rice ball. Moreover, there exists a possibility that a dust may penetrate | invade the inside of a packaging film. Moreover, when it is 15 mm or more, the case where the preparation of the winding-up part 14 of the packaging film shown in FIG. Considering this, the interval between the folds is particularly preferably 8 mm to 12 mm.

A slit S is provided along the fold line X. The slit S functions to divide the exterior film 11 into two. The dimension L of the slit S is not particularly limited as long as it is smaller than the fold line X (the dimension in the length direction of the exterior film 11), but the distances T1 and T2 from the end of the exterior film 11 are each 20 mm to 70 mm, preferably 20 mm. -60 mm, more preferably 20 mm-50 mm. This is because if it is less than 20 mm, the exterior film 11 may be divided into two during the production of the packaged rice balls. Moreover, it is because big force will be needed in order to peel the packaging film 1 of a packaging rice ball if it exceeds 70 mm. If the force F1 and / or F2 is applied in the direction of the arrow as shown in FIG. 4, the portion of the exterior film 11 where no slit exists (the portion corresponding to T1 and T2 in FIG. 3) is torn and divided into left and right.

Further, as shown in FIG. 11, the slit S can be provided with perforations M at both ends thereof. As the size of the slit S is larger, the outer film 11 is easier to divide (therefore, the rice ball is more easily peeled off from the packaging film 1). However, as described above, the outer film 11 is divided into two during the production of the packaging rice ball. There is a risk that. When the perforation M is provided, the exterior film 11 can be easily divided even when the slit S is made small. When the exterior film 11 is divided by the slits S, the division is initially started by the slits S, and then the division is continued by the perforation M.

The lengths L2 and L3 of the perforation M are 20 mm to 70 mm, preferably 20 mm to 60 mm, and more preferably 20 mm to 50 mm. If it is less than 20 mm, the effect of providing the perforation M is small (LI in the figure indicates the length of the slit). Moreover, when it exceeds 70 mm, the length dimension of the slit S becomes too small, and it tends to be difficult to divide the exterior film 11. Therefore, it may be difficult to peel off the rice balls from the packaging film 1. The distances T3 and T4 from the end portion of the perforation M to the end portion of the exterior film 11 can be set to 0 mm to 40 mm. That is, the perforation can be provided from the end of the exterior film 11.

Moreover, as for the folding part 13 of this exterior film 11, the folding | returning part W1 of the fold W is inscribed in the folding part Y1 of the fold Y as FIG. 4 shows. For this reason, dust does not enter the inside of the package from the slit S. Moreover, when producing this folding part 13, it is not necessary to heat in particular, but it can also press to such an extent that a folding surface adheres weakly using low temperature. The temperature at the time of pressing varies depending on the material constituting the exterior film 11.

[Interior film]
The interior film is composed of a pair. FIG. 5 is a rear view of the packaging film 1 of the present invention. As shown in FIG. 5, the outer peripheral edge portions 22a and 22b of the exterior film and the interior films 21a and 21b are joined together, and the exterior film 11 and the interior films 21a and 21b are joined together as shown in the schematic sectional view 4 of the packaging film 1. The hollow part 40 for accommodating the laver 30 formed between is provided. The method for integrally joining the outer film and the outer peripheral edge portions 22a and 22b of the inner films 21a and 21b is not particularly limited, but is usually thermocompression bonded. Further, the outer peripheral edge portions 22a and 22b are provided with non-joining portions 22c (see FIGS. 4 and 5). The non-joining portion 22c separates the interior films 21a and 21b together with the exterior film 11 when the exterior film 11 to which the interior films 21a and 21b are joined is separated (peeling the rice balls from the packaging film). It plays the role of peeling from the packaging film.

FIG. 6 is an explanatory view showing a state in which the laver 30 is housed in the hollow portion 40. The hollow portion 40 for storing the laver 30 can be formed before storing the laver, but after the laver 30 is placed on the back surface of the exterior film 11, the outer peripheral edge portions 22a and 22b of the interior film are exteriorized. It can also be formed by bonding to the film 11. Examples of the material of the interior films 21a and 21b include known resins such as polyethylene.

[Packaging rice balls]
The packaging rice ball of the present invention is made as follows. After storing the seaweed in the packaging film 1, the rice ball is placed on the slit S located at the center in the lateral direction on the back of the packaging film 1 and in the center position of the upper half in the longitudinal direction. FIG. 7 is an explanatory view showing a state where the rice ball 50 is placed on the back surface of the packaging film 1. As shown in FIG. 8 (1), the packaging film 1 is rolled up to half of the rice ball 50, and then the rice ball 50 is wrapped. Thereafter, as shown in FIG. 8 (2), the remaining packaging film 1 is rolled up on a rice ball 50 and wrapped to obtain a finished shape of the packaging rice ball 100.

The packaged rice ball 100 having the completed shape is subjected to spot thermocompression bonding of H4 and H5 shown in FIG. Further, H1 of the winding part 14 can be reinforced by spot thermocompression bonding so that the completed shape cannot be unraveled. Furthermore, it is preferable to fix so that the completed shape cannot be unwound by spot thermocompression bonding to H2 and H3 of the handle portion 12. Instead of this thermocompression bonding, a completed shape can be prevented from being unraveled by using (transparent) pressure-sensitive adhesive tape, an adhesive (which can be used for food such as methylcellulose), or rubber band. Moreover, H4 and H5 can be used as spot thermocompression bonding, and H1 of the winding part 14 can be fixed with a (transparent) adhesive tape.

As shown in FIG. 9, the packaging rice ball of the present invention is pulled along one or both of the handle parts 12, so that the exterior film 11 is aligned along the fold line X that 11 (a) and 11 (b) are provided in the folded part 13. It is divided by the provided slit S. Further, as shown in FIG. 10, the interior films 21a and 21b also have the outer peripheral edge portions 22a and 22b joined to the exterior film 11 and the non-joint portions 22c, so that the interior film 21a and the exterior film 11 (a) The interior film 21b is separated with the exterior film 11 (b). For this reason, it becomes possible to take out the rice ball 60 with a seaweed content easily. The exterior film 11 can be printed with a trademark, date of manufacture, etc. in advance, or a sticker on which the trademark, date of manufacture is printed can be attached later.

(1) Using polypropylene as an exterior film, the dimensions of the rectangular part are 230 mm long x 150 mm wide, and the dimensions of the handle part are 190 mm bottom x 160 mm high x 20 mm high, and folds W, X, Y, A folded portion having Z was formed, and a slit having a length of 170 mm was provided along the fold line X at a distance of 30 mm from the end portion. Then, this folding part was pressed strongly and the exterior film of FIG. 1 was obtained.
(2) Using polyethylene as the interior film, two sheets having a length of 230 mm and a width of 80 mm were obtained to obtain a pair of interior films. The outer peripheral edge part of this interior film and the outer peripheral edge part of the exterior film were bonded together to obtain the packaging film shown in FIG.
(3) After storing the seaweed in this hollow portion, the rice balls were placed as shown in FIG. 7, the packaging film was rolled up as shown in FIG. 8 (1), and then the rice balls shown in FIG. 8 (2) were obtained. . Thereafter, spot thermocompression seals were applied to locations H1, H2, H3, H4, and H5 shown in FIG. 8 (2) to obtain a packaging rice ball of the present invention.
(4) Results The folded portions of the exterior film had no gaps because the folded surfaces of the films were in close contact with each other. Moreover, as shown in FIG. 9, when the rice ball was lightly grasped with one hand and the handle part was pulled with the other hand, the rice ball with seaweed could be easily peeled off from the packaging film.

(1) A packaging film was obtained in the same manner as in Example 1 except that a perforation of 25 mm was provided at both ends of a 140 mm long slit as shown in FIG. 11, and rice balls were packaged in the same manner. .
(2) Results The folded portions of the exterior film had no gaps because the folded surfaces of the films were in close contact with each other. In addition, as shown in FIG. 9, when the rice ball was lightly grasped with one hand and the handle was pulled with the other hand, the perforation was torn from the packaging film after the slit was separated, and the laver was easily removed from the packaging film. The onigiri could be peeled off.

It is a front view of the packaging film of this invention. It is a rear view of an exterior film. It is an expanded view of an exterior film. It is an AA cross-sectional schematic diagram concerning FIG. It is a rear view of the packaging film of this invention. It is explanatory drawing of the state which accommodated the laver in the hollow part. It is explanatory drawing which shows the state which mounted the rice ball on the rice ball packaging film.- It is explanatory drawing which shows the state which packages a rice ball with a rice ball packaging film. It is explanatory drawing which shows the state at the time of peeling a rice ball packaging film from the packaging rice ball of this invention. It is explanatory drawing which shows the state of the exterior film and interior film at the time of peeling a rice ball packaging film from the packaging rice ball of this invention. It is an expanded view of the exterior film which provided the perforation in the edge part of a slit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Packaging film 11 Exterior film 13 Folding part 21a Inner film 21b Inner film 22a Outer peripheral edge part 22b of inner film Outer peripheral part 22c of inner film Non-joining part 30 Nori 40 Hollow part 50 for storing nori Onigiri 60 With nori Rice ball 100 Packaging rice ball M Perforated line S Slit X Fold Y Fold W W Fold Z Fold Y1 Folded part of Fold Y W1 Folded part of Fold W

Claims (5)

An exterior film (11) that can be divided at the center in the width direction and a pair of interior films (21a, 21b) that are detachably overlapped at the center in the width direction. A hollow portion (40) for housing the laver formed between the outer film (11) and the inner film (22a, 22b) by integrally joining the outer peripheral edge portions (22a, 22b) of the film. In the rice ball packaging film (1) provided,
The exterior film includes a folded portion (13) provided with a plurality of folds (W, X, Y, Z) in the longitudinal direction at the center in the width direction,
The folded portion (13) provided in the exterior film is provided with a fold (X) and a fold (Y) in a front view, and a fold (Z) in a rear view, and the folded portion constituting the fold (W) is the fold. Inscribed in the folded portion constituting (Y),
A rice ball packaging film, wherein a slit (S) for dividing the outer film (11) is provided along the fold (X). The slits (S) for dividing the exterior film (11) provided along the fold line (X) are each from both ends of the exterior film (11) to each of both ends of the slit (S). The rice ball packaging film according to claim 1, wherein the distance is 20 mm to 50 mm. The rice ball packaging film according to claim 1 or 2, wherein the film has perforations (M) connected to both ends of the slit (S). The rice ball packaging film according to claim 3, wherein each of the perforations (M) has a length of 20 mm to 50 mm. A rice ball packaging film according to any one of claims 1 to 4, wherein the rice ball packaging film is used.

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