JP2006051981A - Packaged food and packaging sheet for the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a sheet of laver from getting damp in a wrapped rice ball consisting of a rice ball wrapped in a bag with a packaging sheet having the sheet of laver sandwiched between an outer film and an inner film. <P>SOLUTION: The packaging sheet 1 has the sheet of the laver 4 sandwiched between the outer film 2 and the inner film 3, wherein the outer film has a breakable portion 21, and the inner film is formed by overlapping internal ends of two film pieces. The two film pieces of the inner film 2 are joined via a linear joint along the breakable portion of the outer film on their overlaps, and one of the film pieces has a cut applied along the linear joint. The packaging sheet 1 is folded into a bag shape to wrap the food, the ends extending along the longitudinal direction of the packaging sheet are folded to overlap each other, and the overlaped parts are welded, thereby forming the bag containing the food. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a packaged food such as a packaged rice ball and a package sheet thereof.

In the packaging form of “wrapping triangular rice balls” sold at convenience stores, as shown in FIG. 11, a triangular sheet (5) is wrapped along the shape by a packaging sheet (1) (Patent Document 1). ) And rice balls (5) stored in packaging bags (6), as shown in FIG.
The former packaging form uses a packaging sheet (1) formed by sandwiching a sheet-like seaweed (4) between an outer film (2) and an inner film (3) as shown in FIGS. Thus, the sheet-like nori (4) can be shielded from both the rice balls (5) and the outside air, and the nori is kept dry for a long time without losing the flavor or texture. In addition, the cut-off tape (22) is applied to the outer film (2) to form a severable part (21), which makes it easy to unwrap the rice balls. ) Is covered with rice balls and is convenient for eating.

The latter packaging form of FIG. 12 was born from a recent luxury orientation, and has the effect of making the rice balls look larger than the former, where the shape of the rice balls appears directly in the packaging form.
However, the packaging bag (6) is formed of a single sheet, and the rice ball (5) is stored in the packaging bag (6) in a state where the sheet-like seaweed is wound directly, so the rice ball is eaten. By the time, the seaweed becomes wet, and the flavor and texture of the seaweed are impaired.
Furthermore, in the latter case, when unpacking, the thumbs f1 and f2 of both hands are put on the sealing part (61) of the bag with the V-shaped cut (62) made on the opening sealing part (61) of the bag being sandwiched. Support the bag so that it hits and tear the packaging bag (6) from the cut (62). Since the rice ball (5) cannot be held by hand at this time, the rice ball (5) may fall from the bag as soon as the packaging bag (6) is split into two. The dropped rice ball (5) collapses beyond its original shape and cannot be eaten.

Therefore, the applicant tried to implement a packaging form as shown in FIG. 12 with the packaging sheets shown in FIGS. As shown in FIG. 6e, the packaging sheet (1) is folded into a bag shape with the inner film inside and wrapped with rice balls, as shown in FIG. 6f, and the edges along the longitudinal direction of the packaging sheet as shown in FIG. 6f. By folding and forming a ridge and welding the folded portion (16), a bag (10) containing rice balls is formed, and the opening (10a) of the bag (10) is sealed by welding or the like. is there.
However, it has been found that the sheet-like seaweed becomes damp after 7 or 8 hours have passed in the packaged state. This is because the rice balls are housed in a bag with plenty of room, and in the packaged state, the overlapping part of the two film pieces of the inner film partially opens the mouth and the moisture of the rice balls gradually causes the sheet-like seaweed to It is because it makes it moisture.

JP 2003-192075 A

  The present invention relates to a packaged food that can solve the above-mentioned problems when packaging a food such as rice balls with a packaging sheet in which a sheet-shaped food such as sheet-like seaweed is sandwiched between an outer film and an inner film, and the packaging sheet thereof Is to provide.

  The packaging sheet (1) according to claim 1 has a sheet-like food (40) such as sheet-like seaweed (4) sandwiched between the outer film (2) and the inner film (3), and the outer film (2). Has a splittable portion (21) for splitting the film, and the inner film (3) has two film pieces (31) in the vicinity of the splittable portion (21) of the outer film (2). In the packaging sheet (1) formed by overlapping the inner ends of (31), the two film pieces (31), (31) of the inner film (3) are outside at the overlapping portion (32). The film (2) is joined by two linear joints (34) and (34) along the separable part (21), and both film pieces (31) and (31) are joined by two linear joints (34 ) (34) has a separable portion (35) that can be divided in a direction along the linear joint portion.

  The packaging sheet of claim 5 sandwiches a sheet-like food (40) such as sheet-like seaweed (4) between the outer film (2) and the inner film (3), and the outer film (2) is the film. The inner film (3) has two film pieces (31) (31) in the vicinity of the severable part (21) of the outer film (2). In the packaging sheet (1) formed by overlapping the inner ends of the two film pieces (31) and (31), the two film pieces (31) and (31) can be separated from each other at the overlapping portion (32). (21) is joined linearly over the entire length of the inner film (3), and the linear joint (34) has room for the overlapping part (32) of the film pieces (31) and (31) to open its mouth. The film pieces (31) and (31) are intermittently joined at a pitch as dense as possible, and when the film pieces (31) and (31) are pulled away from each other, the linear joints (34 ) Peels off the film pieces (31) and (31). Beam (3) is divided into two two film pieces before bonding (31) (31).

  The packaged food of the present invention is obtained by folding the package sheet (1) into a bag shape so as to wrap the food (50) such as rice balls with the inner film (3) on the inside, and an edge along the longitudinal direction of the package sheet. By folding the parts together and welding the overlapping part (16), a bag (10) containing the food (50) is formed, and the opening (10a) of the bag (10) is sealed by welding or the like. Yes.

Since the overlapping portion (32) of the two film pieces (31) and (31) forming the inner film (3) is welded by the linear joint portions (34) and (34), the overlapping portion (32) The mouth never opens. Therefore, the moisture of the packaged food (50) does not damp the sheet food (40) in the packaging sheet (1), and does not impair the flavor and texture of the sheet food (40). .
Since it is a bag package, it satisfies the high-class orientation, and the packaged food (50) can be shown large.
The food to be packaged (50) can be packaged with the packaging sheet (1) of the present invention even when the shape is different, such as triangular rice balls, short stick-shaped rice, Inari sushi, etc. Versatile.

Further, if the packaged food is unpacked by the following procedure, the food (50) can be prevented from dropping from the bag.
With one hand, hold one of the packaging bags (10) from the severable portion (21) and lightly grasp the food (50) from the top of the bag. Use the other hand to grip and pull the tip of the separable portion (21). The outer film (2) is divided into two from the severable portion (21).
Pull one side of the free packaging bag (10) with your hand torn the outer film (2) to expose approximately half of the food (50) and approximately half of the sheet-like food (40) covered by the food. .
The food (50) is held from above the exposed sheet-like food (40) with the split hand, and the remaining part of the packaging bag (10) is pulled outward with the other hand.
The packaging bag (10) is completely removed from the food (50), and the food (50) covered with the sheet-like food (40) can be eaten.
As described above, when unpacking, the food (50) can always be held by hand, and when the packaging bag (6) is split into two as shown in FIG. It can prevent falling from the bag.

Food to be packaged As shown in FIG. 6, the food (50) to be packaged in the example is a triangular rice ball (5), which is about 7 cm on a side and 3 cm in thickness. The onigiri is a piece of rice, a piece of white rice, etc., and it may be filled with ingredients.

Packaging Bag The packaging bag for accommodating the rice ball (5) is formed by a rectangular packaging sheet (1) having a length of about 26 cm and a width of about 16 cm as shown in FIGS.
The packaging sheet (1) has a rectangular sheet-like food (40) sandwiched between a transparent outer film (2) and a translucent inner film (3), and the outer periphery of the outer film (2) and the inner film (3). The part is formed by welding (12) (14) (15).
The sheet-like food (40) is a sheet-like seaweed (4) in the examples. The sheet-like seaweed (4) is a rectangle having a length of about 18 cm and a width of about 9 cm, and is large enough to cover the bottom surface and both triangular surfaces of the rice ball (5). Sheet-like seaweed (4) is located in the center of the packaging sheet.

The outer film (2) has a separable portion (21) at the center in the width direction that can split the film in the length direction over the entire length.
The severable portion (21) of the example is a directional film that easily tears the outer film (2) in the longitudinal direction, and a cut tape (22) is applied to the film, and further cut into the end of the outer film (2) ( 23) It is formed by applying (23).
The cut tape (22) is known when unwrapping the film wrapping covering the cigarette box.When the strip tape is adhered to the film and one end of the narrow tape is pulled, the film is removed. Can be torn with tape width.
In the case of the examples, the two cut tapes (22) and (22) are stuck in parallel with each other over the entire length in the longitudinal direction of the outer film, and both cut tapes are attached to one end of the outer film (2). (22) Cuts (23) and (23) are made on the outside of (22).
When the end of the outer film (2) is cut between the cut tapes and pulled to the opposite end, the outer film (2) may be split into strips with the width between the cuts (22) and (22). it can.

The inner film (3) is formed by stacking two rectangular film pieces (31) and (31) having the same shape and overlapping the inner edges along the longitudinal direction with an overlapping width of about 10 to 20 mm.
The two film pieces (31) and (31) of the inner film (3) are two linear joints in which the overlapping part (32) is parallel to the severable part (21) of the outer film (2). The film pieces (31) and (31) can be divided in the direction along the linear joint between the two linear joints (34) and (34). This is the point at which a splittable portion (35) is formed.

In the overlapping portion (32) of the film pieces (31) and (31), the linear joint portion (34) of the example is adhered to the counterpart film piece by pre-pressing at least one of the surfaces in contact with each other. A film layer (31) (31) is joined by applying a coating layer having an action and pressing the overlapping portion (32) into a continuous line by a narrow rotation roller (not shown).
Of course, the linear joining portion (34) can employ a joining method by heat welding, which is a conventional means in film joining. The linear joint portions (34) of the second and third embodiments described later can also be implemented by heat welding.

The severable portion (35) of the inner film (3) in the example is formed by intermittently cutting (36) penetrating the front and back of the film piece (31) on a straight line.
Intermittent cuts (36) and (36) of both film pieces (31) and (31) are shifted and do not overlap. This is because the intermittent notch (36) is covered with the counterpart film piece (31), and the moisture of the triangular rice ball (5) in the packaged state described later passes through the intermittent notches (36) and (36). This is to make it as difficult as possible to reach the sheet-like seaweed (4) between the film (3) and the outer film (2).

The welding of the outer peripheral part of the outer film (2) and the inner film (3) will be described in detail. As shown in FIG. 1, both side edges along the longitudinal direction of the packaging sheet (1) are intermittently welded in a thick line. An inner thick weld line (14) is provided over the entire length of the packaging sheet (1) at a distance of about 1 cm from the thick weld line (12). Fine welding lines (15) and (15) are provided on both ends of the packaging sheet (1) with a separable portion (21) of the outer film (2) described later interposed therebetween.
The two side edges (12) and (12) along the longitudinal direction of the packaging sheet (1) are provided with welding wires (12) and (14) inside and outside, respectively. As will be described later, when the packaging sheet (1) is folded into a bag, it is a portion that becomes a heel portion of the bag, and if the portion between the inner and outer welding wires (12) and (14) is also welded, This is because it becomes too hard and does not fold well when folding a fold.
The reason why the unwelded portions (13) are provided at equal intervals on the outer thick weld line (12) is to make the side edges along the longitudinal direction of the packaging sheet as soft as possible for the above reasons.
Omitting the outer thick welding line (12) opens the side edges of the outer film (2) and the inner film (3), making it difficult to carry out bag folding described later.

As shown in Fig. 6a, the rice ball is placed on one end of the packaging sheet (1) waiting in a horizontal state with the outer film (2) on the upper side and the inner film (3) on the lower side ( 5) is pushed up, and the packaging sheet (1) is put on the triangular upper surface of the rice ball (5). At this time, as shown in FIG. 6b, the width center of the packaging sheet (1) is aligned with the width center of the rice ball (5), and the bottom edge of the rice ball is shifted from the center of the length of the packaging sheet (1) by 1/2 of the thickness of the rice ball. The packaging sheet (1) is placed on the rice ball (5) so that the other end of the packaging sheet is suspended.
As shown in FIG. 6c, the hanging part of the packaging sheet (1) is folded so as to cover the triangular lower surface of the rice ball (5). As a result, the rice ball (5) is sandwiched between the packaging sheets bent in a substantially U-shape and aligned at both ends.
As shown in FIG. 6d, the center part of both ears of the packaging sheet (1) protruding from the rice ball (5) is folded inward.
As shown in FIG. 6e, the upper ear portion (11a) of the packaging sheet (1) is folded downward, and the lower ear portion (11b) is folded upward as shown in FIG. ) (11b) are folded and welded (16) to form the collar portion (17), and the bag (10) having one end opened (10a) is formed.
As shown in FIG. 6g, a bag opening (10a) is welded to form a sealing portion. As shown in FIG. 7a, the sealing portion is melted into a thick line across the severable portion (21) of the outer film (2), and further slightly inside the welded thick lines (19) and (19). Are welded in a thin line shape. The welded thin wire (18) is weakly welded to such an extent that it does not interfere with the division of the detachable portion (21) of the outer film (2).

Next, packaging rice balls will be described.
Wrapping rice balls Wrapping rice balls are bag-wrapped, satisfying high-class intentions, and can make rice balls (5) look larger.
Since the packaged rice balls are packaged as described above, the cut tape (22) on the outer film (2) of the packaging sheet (1) forming the bag (10) is the top of the rice ball (5). From the other side, through the center of the opposite side, wrapping around the back of the rice ball and returning to the top again.
The overlapping part (32) of the two film pieces (31) (31) forming the inner film (3) of the packaging sheet (1) is joined by two parallel linear joining parts (34) (34). Therefore, the mouth of the overlapping portion (32) does not open. Therefore, the moisture of the rice balls (3) in the bag-packed state does not wet the sheet-like nori (4) in the packaging sheet (1), and does not impair the flavor and texture of the sheet-like nori (4).

To unwrap the packaged rice balls when eating rice balls , one hand of the packaging bag (10), centering on the severable part (21) of the outer film (2), can be picked from the top of the bag (5 ) Is held lightly. With the other hand, the notches (23) and (23) at the ends of the outer film (2) are picked and pulled to the other end side along the longitudinal direction of the cut tape (22) (see FIG. 7a). The outer film (2) is torn into two pieces and bisected in the width between the notches (23) and (23).

Pull the end of the bag (10) outward with the hand that has torn the outer film (2).
At this time, intermittent cuts (36), which are severable portions (35) of the film pieces (31) and (31) of the inner film (3) shown in FIG. 5a, are connected in the longitudinal direction of the film piece (31). As shown in FIG. 5b, the film pieces (31) and (31) are separated.
That is, half of the outer film (2) and one film piece (31) of the inner film (3) welded to the outer film of the half are pulled out, and half of the sheet-like seaweed (4) and rice ball (5 ) Is exposed (FIG. 7b).
Hold the rice ball (5) from above the exposed sheet-like seaweed (4) with the hand pulled on one side of the packaging bag (10), and pick the left edge of the bag half with the other hand, Pull on.
The packaging bag (10) is completely removed from the rice ball (5), and only the sheet-like nori (4) remains and covers the rice ball (5).
Thereby, rice balls (5) covered with fresh sheet-like seaweed (4) can be eaten.
As shown in FIG. 7b, when half of the packaging bag (10) is covered with rice balls, the rice balls can be sanitized without directly touching the rice balls. It is.

  Because the packaging rice ball can tear the central part in the width direction of the packaging bag (10) by the separable part (21) of the outer film (2) and the separable part (35) (35) of the inner film (3). As mentioned above, when unpacking, you can always hold the rice ball (5) by hand, and as before, when the packaging bag is split into two, the rice ball falls from the bag. Can be prevented.

FIG. 8 shows a second embodiment of the linear joint portion (34) and the separable portion (35) of the inner film (3). As shown in FIG. 8a, the linear joint portion (34) is formed by the inner film (3). ) Film pieces (31) and (31) are provided only over the entire length of the overlapping portion (32).
The splittable portion (35) is formed by intermittently cutting (36) over the entire length of the overlapping portion at the overlapping portion (32) of the film pieces (31) and (31). Since the intermittent cut (36) covers the inner end of the other film piece, moisture is effectively prevented from flowing through the intermittent cut (36), if not completely.
When the film pieces (31) and (31) are pulled away from each other, as shown in FIG. 8b, the inner film (3) is divided into two from the severable portion (35).

FIG. 9 shows a third embodiment of the linear joint (34) and the separable part (35) of the inner film (3).
The film pieces (31) and (31) of the inner film (3) are provided with a coating layer that exerts a weak adhesive force when pressed on the surfaces of the overlapping portions (32) that are in contact with each other. The film pieces (31) and (31) are weakly joined by pressurizing the overlapping portion (32) in a continuous line shape (not shown) (FIG. 9a).
When the film pieces (31) and (31) are pulled away from each other, the film pieces (31) and (31) are separated from the linear joint (34) as shown in FIG. 9b. That is, the linear joint portion (34) also serves as the separable portion (35).
In the case of FIG. 9, since there is no room for air to pass through the inner film (3), such as intermittent cuts, in the overlapping part (32) of the film pieces (31) and (31), the humidity of the rice ball (5) The effect of preventing transfer to the sheet-like seaweed (4) is even more remarkable.

FIG. 10 shows a fourth embodiment which is a modification of FIG. The linear joint portion (34) of the inner film (3) is formed at a pitch that is dense enough to prevent the overlapping portion (32) of the film pieces (31) and (31) from opening. Are formed by intermittently joining. The bonding force of the linear joint portion (34) is not strong, and when the film pieces (31) (31) are pulled in directions away from each other, the film pieces (31) (31) peel off at the linear joint portion (34). The inner film (3) is divided into two film pieces (31) and (31) before joining.
The linear joint (34) is parallel with a large number of thin, short welding wires (34a) being inclined with respect to the longitudinal direction of the overlapping portion (32) of the film pieces (31) (31) at a dense pitch. Are formed side by side. Specifically, weld lines (34a) are arranged at a pitch of 0.5 mm in a virtual strip region having a width of 0.5 mm, and each weld line (34a) is an overlapping portion (32 of film pieces (31) and (31)). ) In the direction of about 45 °.
The linear joint (34) is formed by overlapping the film pieces (31) (31) while rotating a heating roller (not shown) in which a pattern corresponding to the arrangement of the weld lines (34a) is formed on the outer peripheral edge. This is done by pressing the part (32).

When the linear joining portion (34) is formed so that the welding line (34a) is intermittently arranged along the longitudinal direction of the overlapping portion (32) of the film pieces (31) and (31), the film piece (31) There is a possibility that the bonding force of (31) is too weak.
If the linear joining part (34) is formed so that the welding line (34a) is orthogonal to the longitudinal direction of the overlapping part (32) of the film pieces (31) (31), the film pieces (31) (31) The joining force is too strong, and the inner film (3) cannot be easily divided into two.
As in the example, if each welding wire (34a) of the linear joint portion (34) is slanted, the joining of the film pieces (31) (31) becomes stable, and the film pieces (31) (31) When pulled away from each other, they are easily separated and separated at the linear joint (34).
However, depending on conditions such as the material of the film pieces (31) and (31), the characteristics of the coating layer, the pressing force of the roller for forming the linear joint (34), the heating temperature of the roller, the welding wire (34a) What is necessary is just to determine the optimal arrangement | positioning, the optimal direction of the welding line (34a), the optimal length, thickness, etc. of the welding line (34a). Depending on the conditions, an array of weld dots may be used instead of the weld line (34a).
In short, the film pieces (31) (31) can be joined together, the mouth of the overlapping part (32) of the film pieces (31) (31) is not opened in the packaged state, and the film pieces (31) (31) are mutually connected. The pattern of the linear joint (34) is not limited as long as the condition of being easily separated when pulled away is satisfied.
If the linear joining portion (34) is formed by intermittently joining the overlapping portions (32) of the film pieces (31) and (31) at a dense pitch as described above, the region of the linear joining portion (34) is obtained. Even in the unjoined portion, the film pieces (31) and (31) are in close contact with each other, and air flow can be effectively prevented.
As in the embodiment, a large number of welding wires (34a) are arranged at a dense pitch in parallel with an inclination of about 45 ° with respect to the longitudinal direction of the overlapping portion (32) of the film pieces (31) and (31). When the joining portion (34) is formed, the air flow blocking effect between the adjacent weld lines (34a) (34a) is further improved, and the overlapping portions (32) of the film pieces (31) (31) shown in FIG. When the continuous linear joint (34) is formed, there is almost no inferiority to the air flow blocking effect.

  The above description of the embodiments is for explaining the present invention, and should not be construed as limiting the invention described in the claims or reducing the scope thereof. In addition, the configuration of each part of the present invention is not limited to the above embodiment, and various modifications can be made within the technical scope described in the claims.

For example, the food to be packaged (50) is not limited to triangular rice balls, but other shapes of food such as short stick-shaped rice, Inari sushi, and other foods of various lump shapes such as flat circles and flat squares (50) Can be implemented on packaging.
Even when the shape of the food (50) is different, the packaging sheet (1) of the present invention can be used for bag packaging, which is versatile with respect to the shape of the food.
The size of the packaging sheet (1) may be appropriately determined according to the size of the lump food (50).

In addition, the cut-off part (21) of the outer film (2) is cut when the directional film is cut in two places (23) (23) corresponding to the width of the tear, as in the example. Even if (22) is not present, the outer film (2) can be divided. However, if the cut tape (22) is applied, the cut tape can act as a core of the tear width of the film and can tear the outer film (2) stably.
One cut tape is acceptable.
In addition to the above, the severable portion (21) of the outer film (2) may have any configuration other than the above as long as the outer film (2) can be divided into two parts without using tools.

  Further, the severable portion (35) of both the film pieces (31) and (31) of the inner film (3) is not limited to the intermittent cut (36) of the embodiment. For example, a shallow cut line (not shown) that does not penetrate the film piece over the entire length of the film piece (31) is given, or a heated rotary blade is run over the film piece (31) over the entire length. There is no limitation on the configuration as long as the inner film (3) can be divided into two parts without using a tool, such as by forming a melt-solidified line so that the inner film (3) can be easily split apart from other parts, or more brittle than other parts and easily separated.

  The sheet-like food (40) in the wrapping sheet (1) is not limited to the sheet-like seaweed (4), but is a wrapping sheet (1 ) Can be folded and formed into a bag (10).

It is a slope view of a packaging sheet. It is sectional drawing which follows FIG. 1A-A line. It is a disassembled slope view of a packaging sheet. It is a perspective view of two film pieces which form an inner film. a figure is sectional drawing of the overlap part of the film piece of an inner film, b figure is sectional drawing which divided the inner film into right and left. It is explanatory drawing of the packaging procedure of a rice ball. It is explanatory drawing of the procedure which unpacks. It is explanatory drawing of 2nd Example of the linear junction part of an inner film, and a part which can be divided. It is explanatory drawing of 3rd Example of the linear junction part of an inner film, and a part which can be cut | disconnected. It is explanatory drawing of 4th Example of the linear junction part of an inner film, and a part which can be divided. It is a slope view of the conventional packaging triangular rice ball. It is a slope view of the conventional bag packaging rice ball. It is a perspective view of the conventional packaging sheet. It is sectional drawing which follows FIG. 13A-A line. It is a disassembled perspective view of the conventional packaging sheet.

Explanation of symbols

1 Packaging sheet
10 Packaging bag 2 Outer film
21 Dividable part 3 Inside film
31 pieces of film
32 Overlap
34 Welding wire
35 Intermittently cut 4 Sheet nori
40 Sheet food 5 Triangle rice balls
50 food

Claims (7)

  Sheet food (40) such as sheet-like seaweed (4) is sandwiched between the outer film (2) and inner film (3), and the outer film (2) can be divided to divide the film. The inner film (3) has a portion (21), and the inner ends of the two film pieces (31) and (31) are overlapped in the vicinity of the severable portion (21) of the outer film (2). In the formed packaging sheet (1), the two film pieces (31) (31) are arranged along the part (21) where the outer film (2) can be separated at the overlapping part (32). It is joined by two linear joints (34) extending over the entire length of the film (3), and both film pieces (31) (31) are placed between the two linear joints (34) (34). A packaging sheet having a separable portion (35) (35) that can be divided in a direction along the linear joint portion (34).   A sheet-like food (40) such as sheet-like seaweed (4) is sandwiched between the outer film (2) and the inner film (3), and the outer film (2) can be divided to divide the film. (21) and the inner film (3) is formed by overlapping the inner ends of the two film pieces (31) and (31) in the vicinity of the separable portion (21) of the outer film (2). In the wrapping sheet (1), the two film pieces (31) (31) are arranged along the inner film along the severable part (21) of the outer film (2) at the overlapping part (32). The film piece (31) is linearly joined over the entire length of (3), and a severable part (35) that can be divided along the linear joint part (34) is formed on one film piece (31). When the pieces (31) and (31) are pulled away from each other, the inner film (3) is divided into two parts by the severable part (35).   The packaging sheet according to claim 1 or 2, wherein the severable portion (35) of the film piece (31) is an intermittent cut (36) penetrating the front and back of the film piece (31).   A sheet-like food (40) such as sheet-like seaweed (4) is sandwiched between the outer film (2) and the inner film (3), and the outer film (2) can be divided to divide the film. (21) and the inner film (3) is formed by overlapping the inner ends of the two film pieces (31) and (31) in the vicinity of the separable portion (21) of the outer film (2). In the wrapping sheet (1), the two film pieces (31) (31) are arranged along the inner film along the severable part (21) of the outer film (2) at the overlapping part (32). (3) is joined in a continuous linear shape over the entire length, and the linear joined portion (34) is pulled by the linear joined portion (34) when the film pieces (31) (31) are pulled away from each other. The film pieces (31) and (31) are peeled off, and the inner film (3) is divided into two film pieces (31) and (31) before joining.   A sheet-like food (40) such as sheet-like seaweed (4) is sandwiched between the outer film (2) and the inner film (3), and the outer film (2) can be divided to divide the film. (21) and the inner film (3) is formed by overlapping the inner ends of the two film pieces (31) and (31) in the vicinity of the separable portion (21) of the outer film (2). In the wrapping sheet (1), the two film pieces (31) (31) are arranged along the inner film along the severable part (21) of the outer film (2) at the overlapping part (32). It is joined linearly over the entire length of (3), and the linear joining part (34) has a pitch so dense that there is no room for the overlapping part (32) of the film pieces (31) and (31) to open its mouth. Film pieces (31) and (31) are formed by intermittent joining, and when the film pieces (31) and (31) are pulled in the direction of separating from each other, the film pieces (31) are formed at the linear joint (34). (31) peels off and the inner film (3) Packaging sheet divided into film pieces (31) and (31).   At least one of the overlapping surfaces of the film pieces (31) and (31) is formed with a layer that exhibits adhesion to the mating member by pressure, and the linear joint (34) of the film pieces (31) and (31). The packaging sheet according to any one of claims 1 to 5, which is formed by linearly pressing an overlapping portion (32) of the film pieces (31) (31).   The packaging sheet (1) according to any one of claims 1 to 6 is folded into a bag shape so as to wrap a food (50) such as a triangular rice ball (5), and along the longitudinal direction of the packaging sheet (1). A bag (10) containing the food (50) is formed by folding (16) the overlapping portions (32) by folding the edges, and the opening (10a) of the bag (10) is formed by welding or the like. Sealed packaged food.

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