JP6383123B1 - Packaging sheet - Google Patents

Abstract

The present invention provides a packaging sheet in which a sheet-like food is not moistened even when a lump of rice is packaged. A packaging sheet of the present invention is a lump packaging sheet in which a sheet-like food is sandwiched and integrated between an outer film and an inner film disposed on the outer film. The inner film has an inner severable portion 31, and the inner severable portion is formed by an inner first fold portion 32 and an inner second fold portion formed by valley fold and mountain fold that longitudinally cut the inner film. 33 and the inner film and the inner joint 35 are formed by joining one inner fold or the vicinity thereof in an overlapping region 34 sandwiched between the first inner fold and the second inner fold. An inner tubular portion 36, and an inner easily breakable portion 37 that is formed in the inner tubular portion and is ruptured along the inner folded portion by pulling in a direction orthogonal to the inner folded portion. Have. [Selection] Figure 1

Description

  The present invention relates to a packaging sheet that can be formed by sandwiching a sheet-like food product between an inner film and an outer film and packaging a lump of rice.

  As a packaging sheet for rice balls sold at convenience stores and the like, a triple-structured sheet formed by sandwiching a sheet-like seaweed between an outer film and an inner film is widely known.

  The outer film has an outer severable portion such as a cut tape for dividing the outer film at the center in the width direction, and the inner film is composed of two inner film pieces. The two inner films are heat-welded to the outer film in a state where the inner ends of the inner film pieces are stacked on the outer part of the outer film that can be separated (see, for example, Patent Document 1).

  The packaged rice cake in which the rice cake is packaged by the packaging sheet is divided into two parts at the outer part of the outer film, and one of the parted outer films is pulled outward, so that the outer film is thermally welded. Pull out the film pieces together.

  Then, by pulling the remaining outer film together with the remaining inner film piece, the packaging is unwound and a rice lump with the sheet-like food wrapped directly can be obtained.

Japanese Patent Laid-Open No. 2002-101832

  The inner film is simply a stack of inner edges of the inner film pieces. Therefore, during storage and transportation after the packaging sheet is created, and when a lump of rice is wrapped with the packaging sheet, moisture enters the packaging sheet from the overlapping portion of the inner film pieces and the sheet-like food becomes damp. Sometimes. As a result, the sheet-like food may be sticky, wrinkled, or wavy. The sheet-like food in such a state may be caught by a film and broken when unwrapping the packed rice lump.

  An object of the present invention is to provide a packaging sheet in which a sheet-like food is not moistened even when a lump of rice is packaged.

The packaging sheet of the present invention is
A rice lump packaging sheet formed by sandwiching a sheet-like food product between an outer film and an inner film disposed on the outer film,
The outer film has an outer severable portion that longitudinally cuts the outer film,
The inner film has an inner severable portion at a position substantially opposite to the outer severable portion,
The inner severable part is sandwiched between an inner first fold part and an inner second fold part formed by valley folds and mountain folds that longitudinally cut the inner film, and the inner first fold part and the inner second fold part. An inner tubular portion formed by joining the inner film and the inner joint portion facing one inner folded portion or the vicinity thereof in the overlapped region, and the inner folded portion formed on the inner tubular portion. An inner easily breakable portion that breaks the inner cylindrical portion along the inner folded portion by pulling in a direction orthogonal to
The said outer film and the said inner film are welded by the welding part on the outer periphery of the said sheet-like foodstuff.

  The inner easily breakable portion may be an intermittent cut extending longitudinally through the inner film and extending substantially parallel to the inner folded portion.

  The inner easily breakable portion may be a slit formed substantially at the center in the longitudinal direction of the inner film and substantially parallel to the inner folded portion.

  The inner joint portion may be configured by adhering the overlapping region to the inner film.

  It is desirable that the inner film is formed with a band-shaped reinforcing portion that reinforces the inner film from a substantially center of an edge parallel to the inner severable portion toward the inner severable portion.

  The outer severable portion includes an outer first fold portion and an outer second fold portion formed by valley fold and mountain fold, and an overlapping region sandwiched between the outer first fold portion and the outer second fold portion. One outer folding part or the vicinity thereof is formed by joining the outer film and the outer joining part facing each other, and the outer cylindrical part is formed on the outer cylindrical part, and is pulled in a direction perpendicular to the outer folding part. Thus, it is possible to have an outer easily breakable portion that breaks the outer cylindrical portion along the outer folded portion.

The inner first fold is disposed on the side in contact with the rice lump, and the inner joint joins the inner first fold to the inner film,
A band-shaped cover piece covering the inner first fold portion is joined to the inner film along the inner first fold portion.

The packaged rice lump of the present invention is
A lump of rice is packaged by the packaging sheet described above.

  According to the packaging sheet of the present invention, the inner film is folded at the inner first fold portion and the inner second fold portion, and airtightly joined at the inner joint portion, so that the passage of moisture through the inner film is suppressed. The sheet-like food can be kept dry. Moreover, by pulling the inner film in a direction orthogonal to the inner folded portion, the inner joint portion is unbonded and the inner cylindrical portion is developed. And an inner film can be parted because an inner film tears from the inner side easily fracture | rupture part formed in the inner side cylindrical part. Therefore, it is possible to easily unwrap the packaged rice cake obtained by packaging the rice cake with the packaging sheet of the present invention.

  In addition, when the inner film is configured such that the inner first fold is disposed on the side in contact with the rice block and the inner first fold is joined to the inner film at the inner joint, the inner first fold is Covered with a strip of cover. This prevents the inner first fold from directly contacting the rice block. Since the rice lump has a stickiness, when the inner first fold is in direct contact with the rice lump when the inner film is pulled and the inner first fold is bent, the bend is stretched. Although it is difficult and there is a risk of tearing, since the inner first fold part does not directly contact the mass of rice by having the cover piece, the inner first fold part bends smoothly when the inner film is pulled. Can do. Moreover, even when a part coat using a heat-sensitive adhesive is adopted for the inner joint, the inner joint does not directly contact the rice lump, and the cover piece is interposed. Adhesive does not adhere.

FIG. 1 is an exploded perspective view showing an embodiment of a packaging sheet according to the present invention. FIG. 2 is a plan view of the packaging sheet as seen from the inner film side. FIG. 3 is a cross-sectional view taken along line AA in FIG. FIG. 4 is a perspective view of a packaged rice lump packaged with a packaging sheet according to the present invention. FIG. 5 is a perspective view on the way to unwrap the packed rice lump. FIG. 6 is an explanatory diagram illustrating a process in which the inner film is divided. FIG. 7 is a cross-sectional view of a packaging sheet showing a different embodiment of the present invention. FIG. 8 is a plan view showing an embodiment in which a reinforcing portion is formed on the inner film. FIG. 9: is the top view which looked at the packaging sheet which shows further another embodiment of this invention from the inner film side. 10 is a cross-sectional view taken along line DD in FIG. FIG. 11 is an explanatory diagram showing a process in which the inner film is divided with respect to the packaging film of FIG. 9.

  Hereinafter, the packaging sheet 10 of the present invention and the packaged rice lump 60 formed by packaging the rice lump 50 with the packaging sheet 10 will be described with reference to the drawings.

  As shown in FIGS. 1 to 3, the packaging sheet 10 of the present invention is configured by stacking an outer film 20, a sheet-like food 40, and an inner film 30. As shown in FIGS. 2 and 3, the outer film 20 and the inner film 30 are airtightly integrated by a heat welded portion 11 that is heat welded to the periphery of the sheet-like food 40. In addition, in each figure, in order to make explanation easy to understand, the thickness of the films 20, 30 and the like, the thickness of an inner joint portion 35 to be described later, and the like are exaggerated. Further, in the following description, terms such as the longitudinal direction, the width direction, and the longitudinal section are used, but these directions and the like are based on FIG. 1 and the like and should be interpreted depending on the shape of the packaging sheet 10.

  The outer film 20 and the inner film 30 can be substantially rectangular. In the illustrated embodiment, the outer film 20 and the inner film 30 are rectangular films having a length of about 23 cm and a width of about 16 cm, and the outer film 20 and the inner film 30 have polygonal shapes with corners dropped. Yes. Of course, the shape and size of the films 20 and 30 are not limited to the above.

  The outer film 20 has an outer severable portion 21 that can tear the outer film 20 in the direction over the entire length or the entire width. In the illustrated embodiment, the outer severable portion 21 is configured by mounting two cut tapes 28, 28 in the longitudinal direction of the outer film 20. A pair of cutting start portions 29 and 29 are formed at the end edges sandwiching 28. In the drawing, the outer severable portion 21 is formed at the center in the width direction of the outer film 20, but it can also be configured to be shifted to either one.

  The outer severable portion 21 may have a configuration in which intermittent perforations are formed on the outer film 20. In this case, in order to prevent moisture and the like from entering from the cut, it is desirable to arrange a narrow cover film on the inner surface of the outer film 20 along the cut.

  Moreover, the outer partly separable part 21 can also be set as the same structure as the inner partable part 31 of the inner film 30 shown next (refer FIG.7 (b)).

  As shown in FIGS. 1 to 3, the inner film 30 is a film whose outer periphery is heat-welded to the outer film 20 by the heat-welding portion 11, and has an outer shape that is substantially the same shape as the outer film 20.

  The inner film 30 is formed with an inner partitionable portion 31. The inner severable portion 31 can be formed at a position facing the outer severable portion 21 described above. In the illustrated embodiment, the inner severable portion 31 is formed so as to longitudinally cut the inner film 30 in the longitudinal direction. ing.

  As shown in FIGS. 1 to 3, the inner film 30 is formed with an inner easily breakable portion 37 that vertically cuts in the longitudinal direction. The inner easily breakable portion 37 is a region that becomes a breakage or a starting point of breakage of the inner film 30 when the inner film 30 is pulled in a direction orthogonal to the inner breakable portion 31. In the drawing, the inner easily breakable portion 37 is an intermittent slit such as a perforation.

  The inner easily breakable portion 37 is formed over the entire length between the edges of the inner film 30, but can be formed only in the center. In this case, as shown in FIG. 8, the inner easily breakable portion 37 may be a single cut. Furthermore, the inner easily breakable portion 37 may be formed by forming a groove with a trowel heated by the inner film 30, a rotating round blade, a roller or the like to make it thinner.

  In the inner film 30 in which the inner easily breakable portion 37 is formed, an inner first folded portion 32 and an inner second folded portion 33 are formed by valley folding and mountain folding in the vicinity of the inner easily breakable portion 37. The space | interval of the inner side folding parts 32 and 33 can be about 1 cm-3 cm. The inner easily breakable portion 37 constitutes the inner folded portions 32 and 33 so that the inner folded portions 32 and 33 are located in the overlapping region 34 where the inner films 30 overlap each other.

  The overlapping region 34 sandwiched between the inner folding parts 32 and 33 is airtightly joined to the opposing inner film 30 in the vicinity of one inner folding part (inner joining part 35), and the cylindrical inner cylindrical part 36 is joined. Form. The inner joint portion 35 is formed so that the inner easily breakable portion 37 is located on the peripheral surface of the inner cylindrical portion 36. In the illustrated embodiment, the inner joint portion 35 joins the inner first folded portion 32 to the inner film 30. The inner bonding portion 35 may be formed by any bonding method such as adhesion or heat welding as long as it can be hermetically bonded. However, as will be described later, when the inner film 30 is pulled, bonding by the inner bonding portion 35 is performed. It is desirable that the joint has a strength that can be unwound. For example, the inner joint portion 35 can be formed by heat sealing or part coating, and the sealing shape can be a linear shape, a wavy shape, a zigzag shape, or the like. By adjusting the width of the inner joint portion 35 and making the seal shape a wave shape and a zigzag shape, it is possible to easily control the joint strength of the inner joint portion 35, and when the inner film 30 is pulled. The ease of peeling can be adjusted.

  By joining the inner first folded portion 32 to the inner film 30 in an airtight manner, as shown in FIGS. 1 and 3, the inner film 30 is formed into an airtight continuous film. The inner easily breakable portion 37 has air permeability when formed from a cut line, but since the inner film 30 is airtightly continuous at the inner joint portion 35, it is possible to prevent intrusion of moisture and the like.

  In addition, since the inner film 30 contacts the lump 50, it is preferable to use a material having high detachability with respect to the lump 50.

  The sheet-like food 40 can illustrate sheet-like nori. The sheet-like food 40 is placed substantially at the center on the back side of the outer film 20. As the sheet-like food 40, a substantially rectangular shape can be used, but a rectangular shape with a chamfered corner, a shape with a longitudinal end rounded, and the like can also be used. In the illustrated embodiment, the sheet-like food 40 has a length in the longitudinal direction of about 19 cm and a length in the width direction of about 10 cm.

  The sheet-like food 40 is not limited to the sheet-like seaweed, and if it is a thin food, it is possible to adopt a thinly stretched cocoon or a piece of rag-kombu formed into a sheet.

  As shown in FIG. 1, the outer film 20, the sheet-like food 40, and the inner film 30 are placed on the sheet-like food 40 at the approximate center on the back side of the outer film 20, and the inner film 30 is stacked on top of the sheet-like food 40. As shown in FIG.2 and FIG.3, the packaging sheet 10 is produced by forming the heat welding part 11 by thermally welding the periphery of the outer film 20 and the inner film 30 linearly so that the sheet-like food 40 may be enclosed. Is done. It is desirable not to apply the heat welding part 11 to the position where the outer parting possible part 21 and the inner parting possible part 31 face each other.

  In order to prevent the sheet-like food 40 from shifting in the packaging sheet 10, the packaging sheet 10 has a linear shape on both sides in the width direction and both sides in the longitudinal direction as shown in FIGS. 2 and 3. It is desirable to form the dot-like heat welded portion 12.

  In the produced packaging sheet 10, the inner film 30 is composed of a single film, and the inner film 30 has an inner tubular portion 36 and an inner easily breakable portion 37 such as a slit formed on the inner side. Since the 1st folding part 32 is airtightly joined by the inner side junction part 35, the continuous airtight film is comprised. For this reason, the penetration | invasion of the moisture etc. which originates in the inner film 30 can be prevented almost completely, and the dry state of the accommodated sheet-like food 40 can be suitably maintained over a long period of time.

  The packaging sheet 10 wraps the rice lump 50. The rice lump 50 (refer to FIG. 4) is a lump that is formed by flattening or spherical shape by solidifying white rice or rice. The rice lump 50 may be partially or entirely sprinkled with sprinkled food such as sesame, placed with ingredients, or sandwiched with ingredients. In this embodiment, the rice lump 50 is a triangular flat-shaped rice ball, but can also be a round rice ball or a rectangular rice ball.

  As shown in FIG. 4, the packaging sheet 10 having the above configuration is packaged so as to wrap the rice lump 50, and the overlapping portion and the corner portion of the packaging sheet 10 are stopped by a fastening means 70 such as tape or heat welding. A mass 60 is obtained. Since the obtained packaged rice lump 60 does not pass steam from the lump 50 or moisture contained in the lump 50 through the inner film 30, the sheet-like food 40 is moistened in the packaged state. It is possible to prevent stickiness, wrinkles, and undulations of the sheet-like food 40. In addition, since the dry state of the sheet-like food 40 can be maintained, the sheet-like food 40 is not caught by the films 20 and 30 when the packaged rice lump 60 is unpacked and is not torn.

  The packaged rice cake 60 obtained by packaging the rice cake 50 with the packaging sheet 10 of the present invention can be unpacked in the following procedure. In order to unwrap the packaging, first, the cut tapes 28, 28 existing between the cutting start portions 29, 29 of the outer severable portion 21 of the outer film 20 are picked and pulled to divide into two outer film pieces 20a, 20b (see FIG. 6 (a)). Before and after the division of the outer film 20, the one fastening means 70 located on the left and right is peeled off to raise the corner 15, and the rice cake 50 is grasped from above the divided one outer film piece 20 b. Pull in the direction of arrow B of 5.

  Thereby, as will be described below with reference to FIG. 6 and the following, the inner film 30 is divided into inner film pieces 30a and 30b (FIGS. 6A to 6D), and the outer film piece 20a and the inner film piece 30a. Are removed, and the outer film piece 20b and the inner film piece 30b remain in the sheet-like food 40 and the rice cake 50. And the rice lump 50 wrapped in the sheet-like food 40 can be obtained by pulling and removing the outer film piece 20b and the inner film 30b remaining in the rice lump 50.

  FIG. 6 is a diagram illustrating a process in which the inner film 30 is divided by the inner divisionable portion 31. As shown in FIG. 6A, after the outer film 20 is divided into outer film pieces 20a and 20b, the outer film piece 20a is pulled together with the inner film 30 in the direction of arrow C which is substantially orthogonal to the inner folding parts 32 and 33. And as shown in FIG.6 (b), as for the inner film 30, the inner side junction part 35 peels with the tensile force. When the outer film piece 20a and the inner film 30 are further pulled from this state, as shown in FIG. 6 (c), the inner cylindrical portion 36 is bent by the inner folding portions 32, 33 (襠) stretches and becomes substantially linear.

  When the outer film piece 20a and the inner film 30 are further pulled in the arrow C direction from this state, the inner easily breakable portion 37 of the inner film 30 is divided as shown in FIG. Thereby, the inner film 30 is divided | segmented into the inner film piece 30a and the inner film piece 30b, and it reaches the state of FIG.

  As described above, the inner film 30 that has been kept in an airtight state simply by pulling the inner film 30 can be divided into an inner film piece 30a and an inner film piece 30b.

  The above embodiment is for explaining the present invention, and should not be construed as limiting the invention described in the claims or reducing the scope thereof. Moreover, each part structure of this invention is not restricted to the said one Embodiment, Of course, a various deformation | transformation is possible within the technical scope as described in a claim.

  In the said embodiment, the rice lump 50 packaged by the packaging sheet 10 is a triangular rice ball, and the packaging sheet 10 is packaging so that the rice lump 50 may be tightly wrapped. However, the packaging sheet 10 may be formed in a bag shape so that the rice lump 50 is packaged. Moreover, the rice lump 50 can also be made into a rod-shaped (columnar) rice lump. In this case, the outer severable portion 21 and the inner severable portion 31 are formed so as to cross the width direction of the packaging sheet 10, so that these severable portions 21, 31 are arranged on the peripheral surface of the rod-shaped rice lump. do it. Although the part which can be cut | disconnected 21 and 31 is suitable for the center of the longitudinal direction of a rod-shaped rice lump, the position which approached any edge may be sufficient. In addition, what is necessary is just to form the ear piece which covers the end surface of a rod-shaped rice lump suitably in the packaging sheet 10, when packaging a rod-shaped rice lump.

  In addition, the packaging sheet 10 of the present invention is not limited to the rice lump 50, and it is needless to say that various foods such as gohei rice cake and hampen can be packaged.

  In the said embodiment, as shown in FIG. 3, although the inner side easily fracture | rupture part 37 is formed between the inner side 2nd folding part 33 and the inner side junction part 35 which oppose the sheet-like food 40, FIG. As shown to a), it can also provide between the inner side 1st folding part 32 and the inner side 2nd folding part 33, and also on the inner side 2nd folding part 33. FIG. Further, when the inner joint portion 35 joins the inner second fold portion 33 and the inner film 30, the inner easily breakable portion 37 is interposed between the inner first fold portion 32 and the inner joint portion 35 that face the lump 50. It may be formed.

  In addition, as shown in FIG. 7B, the outer severable portion 21 may have the same configuration as the inner severable portion 31. In the figure, reference numeral 22 denotes an outer first folding portion, 23 denotes an outer second folding portion, 24 denotes an outer easily breakable portion, and 25 denotes an outer joint portion.

  In addition, the inner easily breakable portion 37 is not formed over the entire length of the inner film 30, but a slit is formed in a part, for example, substantially the center of the inner film 30 with which the bottom surface of the rice lump 50 abuts. It doesn't matter.

  Furthermore, when the inner film 30 is pulled, the inner joint portion 35 peels and the inner easily breakable portion 37 is divided, as shown in FIG. It is desirable to form a belt-shaped reinforcing portion 38 from the end edge parallel to the inner side toward the inner partable portion 31. The reinforcement part 38 reinforces the inner film 30 by heat-sealing the inner film 30 or joining a thin film. The reinforcing portion 38 is desirably formed at a position corresponding to the bottom surface of the rice lump 50. In the drawing, two reinforcing portions 38, 38 are formed so that the interval is widened from the edge of the inner film 30. By forming the reinforcing portion 38, when the inner film 30 is pulled, the inner film 30 is prevented from being stretched, and the inner joint portion 35 can be peeled off and the inner easily breakable portion 37 can be reliably separated.

  9 to 11 show still another embodiment of the packaging film 10 of the present invention. As shown in the figure, the inner film 30 is provided with an inner first fold 32 on the side that comes into contact with the rice lump 50 (see FIG. 11). The film 30 is joined. About the packaging film 10 of such a structure, in embodiment, the cover piece 80 which covers the inner side 1st folding part 32 was joined to the inner film 30, It is characterized by the above-mentioned. 9 to 11, the same reference numerals as those in the above-described embodiment mean the same members, and description thereof will be omitted as appropriate.

  As shown in FIG. 9, the cover piece 80 is a strip-like film extending along the inner first folded portion 32, and can be formed to have the same length as the length of the inner film 30 in the longitudinal direction. The cover piece 80 is joined 82 to the inner film 30 on the side of the inner first folding part 32, and the free end side covers the inner first folding part 32. The joining 82 can be performed by, for example, line sealing, heat welding, adhesion, or the like.

  When the cover piece 80 is not present, the rice lump 50 has a stickiness, and therefore, when the inner film 30 is pulled and the inner first folded portion 32 is bent, it is bent due to contact resistance with the rice lump 50. Is difficult to stretch smoothly and may break. Further, when, for example, a part coat using a heat-sensitive adhesive is employed for the inner joint portion 35, the adhesive may adhere to the rice lump 50.

  Therefore, in the present embodiment, by providing the inner film 30 with the cover piece 80 that covers the inner first folded portion 32, the inner first folded portion 32 is prevented from coming into direct contact with the rice mass 50 due to the cover piece 80 being interposed. ing. Since the inner first folding part 32 is in contact with the cover piece 80 having a small contact resistance, the bending can be smoothly extended. Further, even when an adhesive is employed for the inner joint portion 35, the adhesive does not adhere to the rice lump 50 due to the cover piece 80 being interposed.

  FIG. 11 is a diagram showing a process in which the inner film 30 is divided by the inner dividing portion 31 in the same manner as in FIG. 6, and the cover piece 80 is joined 82 so as to cover the inner first folding portion 32. 6 is different from FIG. As shown in FIG. 11A, after the outer film 20 is divided into the outer film pieces 20a and 20b, the outer film piece 20a is pulled together with the inner film 30 in the direction of arrow C which is substantially orthogonal to the inner folded portions 32 and 33. And as shown in FIG.11 (b), as for the inner film 30, the inner side junction part 35 peels with the tensile force. At this time, since the inner first folding part 32 is at a position facing the cover piece 80, the inner first folding part 32 is slippery and the inner first folding part 32 bends smoothly. Therefore, the inner first folding part 32 is not torn. Moreover, even if the adhesive of the inner side junction part 35 has adhered to the inner film 30, it can prevent adhering to the rice lump 50 by the cover piece 80 interposing. By further pulling the outer film piece 20a and the inner film 30 from this state, as shown in FIG. 11 (c), the inner film 30 is bent by the inner folding portions 32 and 33 (襠) Extends to be substantially linear. When the outer film piece 20a and the inner film 30 are further pulled in the arrow C direction from this state, the inner easily breakable portion 37 of the inner film 30 is divided as shown in FIG. Thereby, the inner film 30 is divided | segmented into the inner film piece 30a and the inner film piece 30b.

  According to the present embodiment, by interposing the cover piece 80, the inner folded portions 32 and 33 can bend more smoothly and the inner film 30 can be divided by the inner easily breakable portion 37.

DESCRIPTION OF SYMBOLS 10 Packaging sheet 20 Outer film 21 Outer part possible part 30 Inner film 31 Inner part possible part 32 Inner first folding part 33 Inner second folding part 34 Overlap area 35 Inner joint part 36 Inner cylindrical part 37 Inner easily breakable part 40 Sheet Food 50 rice cake 60 packaging rice cake 80 cover piece

Claims (8)

A rice lump packaging sheet formed by sandwiching a sheet-like food product between an outer film and an inner film disposed on the outer film,
The outer film has an outer severable portion that longitudinally cuts the outer film,
The inner film has an inner severable portion at a position substantially opposite to the outer severable portion,
The inner division can portion includes an inner folded part consisting of a valley fold and mountain fold inner first folding portion formed by the inner second folding unit for vertically through said film, wherein said inner first folding portion inner hand of the said inner second folding portion and the inner first folding portion of the inner fold portion at the overlap region sandwiched between the second folding unit or joined by the inner film and the inner joint portion opposing the neighborhood An inner tubular portion formed on the inner tubular portion, and an inner easily breakable portion that breaks the inner tubular portion along the inner folded portion by pulling in a direction orthogonal to the inner folded portion. Have
The outer film and the inner film are welded by a welded portion on the outer periphery of the sheet-like food,
A packaging sheet characterized by that. The inner easily breakable portion is an intermittent cut that longitudinally cuts the inner film and extends substantially parallel to the inner folded portion.
The packaging sheet according to claim 1. The inner easily breakable portion is a slit formed substantially in the longitudinal direction of the inner film substantially parallel to the inner folded portion.
The packaging sheet according to claim 1. The inner joint portion is obtained by bonding the overlapping region to the inner film.
The packaging sheet according to any one of claims 1 to 3. The inner film is formed with a band-shaped reinforcing portion that reinforces the inner film from the substantially center of the edge parallel to the inner severable portion toward the inner severable portion.
The packaging sheet according to any one of claims 1 to 4. The outer severable portion is sandwiched between an outer fold portion formed of a valley fold and a mountain fold and an outer first fold portion and an outer second fold portion, and the outer first fold portion and the outer second fold portion. the overlapping outer tubular said outer folding hand of said outer first folding portion outer second folding portion of the section or in the area which is formed by joining by the outer film and the outer joint portion which faces the vicinity And an outer easily breakable portion that is formed in the outer tubular portion and is broken along the outer folded portion by pulling in a direction orthogonal to the outer folded portion.
The packaging sheet according to any one of claims 1 to 5. The inner first fold is disposed on the side in contact with the rice lump, and the inner joint joins the inner first fold to the inner film,
A band-shaped cover piece covering the inner first fold portion is joined to the inner film along the inner first fold portion.
The packaging sheet according to any one of claims 1 to 6. The rice cake is packaged by the packaging sheet according to any one of claims 1 to 7.
Packed rice chunks.

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