JP2003128124A - Packaging sheet for to-be-packaged food - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging sheet for to-be-packaged food, which can restrain effectively alteration of the packaged food, and add a quality appearance to the food. SOLUTION: The packaging sheet 10 for packaging rice balls R0 comprises an outside sheet 20 and an inside film 30. The sheet 20 comprises an intermediate sheet 22 made of watermarked paper material, and a first film 21 and a second film 23 laminated respectively on the surface and the rear of the sheet 22. In the outside sheet 20, a cut tape 40 is provided along a perforation 24, and a cover tape 50 for covering the perforation 24 is laminated to the first film 21.

Description

Detailed Description of the Invention

TECHNICAL FIELD The present invention relates to a packaging sheet for encapsulated foods used for packaging so-called encapsulated foods such as nigiri rice, nigiri sushi, sushi rolls, sandwiches, various kinds of confectionery or hamburg steak. Is.

[0001]

2. Description of the Related Art Conventionally, there is known a packaging sheet 100 for packaging a rice ball R0 which is a kind of encapsulated food as shown in FIG. This packaging sheet 100 is shown in FIG.
As shown in FIG. 3, an outer film 110 formed of a synthetic resin thin transparent film having a rectangular shape in a developed state with each corner cut out, and an outer film 110 laminated on the outer film 110. And an inner film 120 made of the same material as the above.

The outer film 110 has a dividing tape 111 that is attached to the inner surface side (upper surface side of FIG. 8A) in the widthwise center position and extends over the entire length in the longitudinal direction. Further, a pair of cuts 112 are provided on both sides of the dividing tape 111 at one edge on the shorter side of the outer film 110, and thereby a gripping piece 113 that can be picked with a finger is formed between the cuts 112.

The inner film 120 has a gripping piece 113.
A pair of widthwise unilaterally split inner films 121 and 122 (a left unilaterally split inner film 121 and a right unilaterally split inner film 122) having overlapping portions 123 overlapped with each other along the dividing tape 111 at a portion corresponding to There is.

Then, the inner film 120 consisting of the half-split inner films 121 and 122 is laminated on the inner surface side of the outer film 110, leaving the gripping piece 113, and these edges are annularly welded to form the welded portion 130. By forming, the packaging sheet 100 as shown in FIG. 8A can be obtained.

With the sheet-like seaweed 140 inserted in such a packaging sheet 100, the rice squeeze R0 in the width direction is placed at the central position on the inner film 120 side, as shown by the two-dot chain line in FIG. By laying it transversely and bending both ends of the packaging sheet 100 in the longitudinal direction to wrap the rice ball R0 and stopping it by the spot welding process, the rice ball R0 is packaged by the packaging sheet 100 as shown in (b) of FIG. The packed food R1 with the sheet-shaped seaweed 140 is completed.

According to such packaged food R1, the gripping piece 11
When 3 is picked up with a finger and the gripping piece 113 is pulled in the direction of the arrow in FIG. 8B, the outer film 110 is divided so that the notch 112 extends by being guided by the strong dividing tape 111. As a result, the rice ball R0 is in a state of being wrapped by the outer film 110 which is divided into two and the half-split inner films 121 and 122 which are originally divided into two. Then, when the outer film 110 and the half-split inner films 121 and 122 that are divided into two are opened to the left and right and divided, the sheet-like seaweed 140 remains and the rice ball R0 covered with seaweed is obtained.

[0007]

By the way, in the conventional packaging sheet 100 as described above, the outer film 1 is used.
Since a transparent synthetic resin is used as the material 10, the encapsulated food inside (sheet-like seaweed 14 in the example of FIG. 8) is used.
0) is seen through as it is, and there is a disadvantage that the packaged food R1 looks cheesy.

In order to eliminate such inconvenience, it is conceivable to use a material such as Japanese paper as the outer film 110. By doing so, the rice ball R0 wrapped by the packaging sheet cannot be seen directly from the outside, but since the paper material such as Japanese paper is strong, it cannot be easily divided even by using the dividing tape 111.

The present invention has been made to solve the above problems, and an object thereof is to provide a packaging sheet for encapsulated foods, which can impart a high-grade feeling to the packaged foods, Another object of the present invention is to provide a packaging sheet for encapsulated foods, which can be easily divided while imparting a high-class feeling to the packaged food.

[0010]

The invention according to claim 1 is
A packaging sheet for encapsulated food used for packaging encapsulated food, having a breaking means for breaking guide, comprising a sheet body for wrapping the encapsulated food, the sheet body is a mat It is characterized by being processed.

In the present invention, the breaking means is for assisting the division of the sheet body. For example, a tensile stress is applied to the sheet body in a strip shape across the sheet body on the back side of the sheet body. It is common to use cut tapes made of synthetic resin larger than that, but not limited to cut tapes, perforations formed on the sheet body,
A so-called cutting line formed by linearly denting the sheet body by pressing is also included in the concept of the breaking means. By the presence of such breaking means,
It is possible to easily break the sheet body in the state in which the wrapped food is wrapped.

In the present invention, the matte treatment means
This is a surface matt treatment of the sheet body, and it does not matter whether the sheet body before treatment is transparent or opaque. Then, even if the sheet body is originally transparent, the sheet body becomes matte by being subjected to the matting treatment, and as a result, becomes semitransparent or opaque. Further, in the present invention, the concept of the matte treatment includes that the sheet body is made of an opaque material which is originally in a matte state. Therefore, a matte opaque material such as a paper material, a material similar to the paper material, or a material containing these materials is also included in the category of the mat-treated sheet body in the present invention.

According to the present invention, since the outer surface of the wrapped food packaged with the sheet body is covered with the opaque sheet body having a matte treatment, the sheet body is transparent. Causes the inconvenience that the wrapped food is unsightly to see through and the product looks cheap, but not only this inconvenience is solved, but the texture is added to the sheet body to give a high-class feeling, and thereby the packed food The total product value of Further, since the sheet main body is configured to include the breaking means, the sheet main body in a state where the encapsulated food is wrapped can be easily broken, and the encapsulated food can be easily taken out from the packaged sheet main body.

According to a second aspect of the present invention, in the first aspect of the present invention, the sheet body has two breakage assistance lines, and the cover is laminated so as to cover each breakage assistance line on the inner surface side. It is configured to include a tape, and the breaking means is a cut tape provided between the breaking assistance lines and along the breaking assistance line.

In the present invention, the breakage assisting line is a line formed in a linear shape on the sheet main body in order to assist the breakage of the sheet main body, and is typically formed by perforation or press processing. A grooved cutting line or the like can be given.

Further, according to the present invention, since the sheet body is provided with the pair of breakage assisting lines, the cut tape is picked up with fingers with the wrapped food packaged in the packaging sheet. By pulling the sheet toward each other, even if the sheet body is a Japanese paper that is difficult to break, the sheet body will be easily broken along the pair of breakage assistance lines in sequence, whereby the sheet body is easily broken. .

Since the covering tape for covering the breakage assist line is provided inside, the flow of air through the breakage assist line to the inside of the packaging sheet is blocked. Not only the deterioration of the food is reliably prevented, but even when the liquid food such as the sauce is applied to the packaged food, the leakage of the liquid food is surely prevented. By the way, if a cover tape that is easily broken is used, the cover tape will not hinder the break of the sheet body.

According to a third aspect of the present invention, in the first aspect of the present invention, the inner sheet body wraps the food to be encapsulated in a state where the inner surface side is in direct contact, and the outer sheet body laminated on the inner sheet body. The matte treatment is performed on the outer sheet body.

According to the present invention, the encapsulated food product is wrapped in a wrapping sheet so as to come into contact with the inner sheet body side so that it is doubly wrapped by the inner sheet body and the outer sheet body. In addition to being hygienic, the invasion of microorganisms into the packaging film is effectively suppressed,
Since the outside is covered with an opaque outside sheet body that has been subjected to a matte treatment, a sense of quality is imparted and the commercial value is increased.

Further, the packaging sheet of the present invention may be used such that it is packaged with an enclosed food product interposed between the inner sheet body and the outer sheet body. When such a packaging method is adopted, the packaged food product may be displayed so that the outer sheet body is located on the upper side. By doing so, the beautiful outer sheet body can be made conspicuous, so that the packaged food can be given a high-class feeling.

According to a fourth aspect of the invention, in the third aspect of the invention, the outer sheet body is an intermediate sheet body, and a first synthetic resin film laminated on the intermediate sheet body and serving as an inner surface side. , A three-layer structure of an outer surface side second film laminated on the intermediate sheet body, the matte treatment is applied to the second film, and the intermediate sheet body is formed of a material capable of forming a paste pattern. It is characterized by that.

In the present invention, the strained pattern imparts a high-class feeling to the packaged food because the stretched lines of the fibers are revealed in some places as seen in, for example, Japanese paper, and the appearance is very graceful in terms of design. It is very suitable as a pattern. Representative examples of the material capable of forming a strained pattern include Japanese paper itself, but not limited to Japanese paper, cellulose derivatives such as acetyl cellulose can also be suitably used. When the cellulose derivative prepared in the form of Japanese paper is used, the packaged food has a high quality feeling while ensuring low cost.

Further, according to the present invention, the intermediate sheet on which the strained pattern is formed is closely sandwiched between the first film and the second film, whereby the strained pattern on the surface side of the intermediate sheet is matt-treated. The packaged food formed by wrapping the encapsulated food with this packaging sheet has a higher sense of quality because it can be visually recognized in a slightly blurred texture through the formed second film.

Further, since the films are laminated on both the front and back sides of the intermediate sheet, it is possible to perform a temporary fixing welding process on the overlapping portions of the wrapped food with the packaging sheet wrapped. Realization of easy processing.

According to a fifth aspect of the invention, in the invention according to any one of the third to fifth aspects, the outer sheet body is
In addition to having two breakage assisting lines, the inner surface side is provided with a covering tape laminated to cover each breakage assisting line, and the breaking means is provided between the breakage assisting lines and to the breakage assisting line. It is characterized in that it is a cut tape provided along the line.

According to the present invention, the presence of the covering tape prevents the air from flowing through the breaking assist line into the packaging sheet, so that the deterioration of the encapsulated food due to the air circulation is surely performed. Is not only prevented by
Even if the packaged food is provided with a liquid substance such as a sauce, leakage of the liquid substance is reliably prevented.
If a wrapping tape that covers the rupture assistance line is easy to rupture, the wrapping tape will not hinder the rupture of the outer sheet body.

Further, by interposing a sheet-like food product such as seaweed between the inner sheet body and the outer sheet body, the packaged food and the sheet-like food product are separated from each other by the presence of the inner sheet body before the packaging sheet is divided. While the contact is prevented and the deterioration of the sheet-shaped food such as getting wet is avoided, when the packaging sheet is cut, the encapsulated food becomes covered with the remaining non-moistened sheet-shaped food.

Further, since the outer sheet body is provided with a pair of breakage assisting lines, when the wrapped food is packaged in the packaging sheet, the breaking means is pinched with fingers and pulled away outward. , Even if the outer sheet body includes a Japanese paper or a Japanese paper-like intermediate sheet that is difficult to break, the outer sheet body is easily broken along the pair of breaking assistance lines, whereby the outer sheet body is Easily broken.

[0029]

1 is a partially cutaway perspective view showing a first embodiment of a packaging sheet 10 according to the present invention, and FIG. 2 is a sectional view taken along the line AA. The packaging sheet 10 of this embodiment is for the rice ball R0.

First, as shown in FIG. 1, the packaging sheet 10
Has an octagonal shape in which four corners of a rectangular shape are obliquely cut out in a plan view. The packaging sheet 10 is an outer sheet body 2 positioned on the outer surface side in a state of wrapping the rice ball R0.
0, the inner film (inner sheet body) 30 laminated on the inner surface side (upper side in FIG. 1) of the outer sheet body 20, and the outer side so as to extend in the longitudinal direction at the widthwise central portion of the outer sheet body 20. It has a basic configuration including a film-like covering tape 50 having a cut tape (breaking means) 40 laminated on the inner surface side of the sheet body 20.

In the present embodiment, the outer sheet body 20 is composed of a first film 21, an intermediate sheet body 22 and a second film 23. The first film 21 is laminated on the inner surface side (the upper side of FIGS. 1 and 2) of the intermediate sheet body 22 by a predetermined coating treatment, and the second film 23 is the outer surface of the intermediate sheet body 22 by a predetermined coating treatment. Laminated on the side.

The first film 21 and the second film 23 are formed of thin films of ordinary thermoplastic synthetic resin such as polyethylene and polypropylene, whereas the intermediate sheet body 22 is formed in a Japanese paper shape. So-called rayon paper is used. As a result, a strained pattern such as Japanese paper is formed on the front and back surfaces of the intermediate sheet body 22, and since the strained pattern can be seen through the second film 23, the packaging sheet 10 has a high quality feeling. I am trying to become.

The reason why the intermediate sheet body 22 is sandwiched between the first film 21 and the second film 23 made of the usual thermoplastic synthetic resin is as follows. That is, when the sushi rice R0 is wrapped with the packaging sheet 10, as shown in FIG. 3, the front and back sides of the packaging sheet 10 are overlapped with each other (as an overlapping aspect, the inner surface side of the outer sheet body 20 and the inner film 30 are overlapped with each other, Since the outer surface side of the outer sheet body 20 and the inner film 30 are overlapped with each other, it is necessary to perform a welding process on the overlapped portions in order to prevent the wrapping from unraveling in such an overlapped state. This is because it is necessary to stack the first film 21 and the second film 23, which are made of a synthetic resin material and are easily welded, on the front and back of the intermediate sheet body 22 that is difficult to be welded.

The second film 23 has a matte treatment on its surface side and is made semitransparent by the matting treatment. As a result, the paste pattern on the surface of the intermediate sheet body 22 is visually recognized through the semitransparent second film 23, which creates a vague feeling, which makes the packaging sheet 10 rich in texture and high quality. It becomes a thing.

The width of the covering tape 50 is set wider than that of the breakable zone 25. Each side edge of the cover tape 50 is welded to the first film 21 in a state of being laminated on the outer sheet body 20 so as to cover the breakable band 25 from the first film 21 side. Therefore, the first film 21 is in a state in which a pair of welding zones 51 in the width direction are formed by these welding portions.

Then, at one end portion of each perforation 24, a covering piece 50 including the covering tape 50 is formed by breaking the perforation 24 to a predetermined depth. Is formed, and by pulling this knob piece 26 outward, the rupture zone 25 is ruptured along the perforations 24, whereby the outer sheet body 2
It is designed so that 0 can be easily divided into left and right.

The cut tape 40 is formed of a predetermined synthetic resin material which is uniaxially stretched in the longitudinal direction, whereby the tensile stress in the longitudinal direction is made larger than the tensile stress in the width direction and is torn. It's getting harder. The cut tape 40 is formed by laminating and welding the first film 21, the intermediate sheet body 22, the second film 23, and the covering tape 50 to each other, and then covering the entire length in the longitudinal direction at the central portion in the width direction of the covering tape 50. It has been pasted.

Then, the outer sheet body 2 with the cut tape 40 and the cover tape 50 formed in this way
At 0, a pair of perforations (breakage assisting lines) 23 in the width direction extending in the widthwise direction of the cut tape 40 and extending over the entire length in the longitudinal direction are formed in advance within the range of the covering tape 50. The breakable zone 25 is formed between the pair of perforations 24.

The inner film 30 is composed of a pair of left and right inner film pieces 31, 32 (left inner film piece 31 and right inner film piece 32). The width dimension of each of the inner film pieces 31 and 32 is set to be slightly wider than 1/2 of the width dimension of the outer sheet body 20, whereby each inner film piece 31 and 32 is set to the first film 21 of the outer sheet body 20. The overlapping portion 33 extending in the longitudinal direction at the central portion in the width direction while being overlapped on the side.
Are formed.

Then, while the inner film 30 is laminated on the first film 21 side of the outer sheet body 20 provided with the covering tape 50 having the cut tape 40, the peripheral portions thereof are welded. As a result, the packaging sheet 10 having the weld zone 34 formed on the peripheral edge portion is formed as shown in FIGS. 1 and 2. In the state where the packaging sheet 10 is formed, a storage space 35 having an opening in the overlapping portion 33 is formed between the outer sheet body 20 and the inner film 30, the periphery of which is closed by the welding zone 34. ing.

In the present embodiment, this storage space 35
Is loaded with sheet-like seaweed N as a sheet-like food. The sheet-shaped seaweed N is placed on the first film 21 in advance in the manufacturing process of the packaging sheet 10, and in this state, the welding zone 34 is formed so that it is loaded into the storage space 35. There is. However, instead of doing this, the overlapping portion 33 is opened after only the packaging sheet 10 is formed, and the sheet-shaped seaweed N is inserted into the storage space 35 from here.
May be inserted.

The above-mentioned first film 21 and second film 2
3, the inner film 30 and the covering tape 50 are formed of a thermoplastic synthetic resin having a relatively low softening point. Examples of such thermoplastic synthetic resin include polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polyamide (PA), polyvinylidene chloride (PVDC), or ethylene vinyl acetate prepared to have a predetermined softening point. A copolymer (EVA) or the like is preferably used.

As the intermediate sheet 22, a synthetic resin commonly referred to as rayon paper, which is made of so-called cellulose derivative such as acetyl cellulose, acetic acid / cellulose nitrate, methyl cellulose, ethyl cellulose or carboxymethyl cellulose, is preferably used. In the manufacturing process of the intermediate sheet body 22 made of such a cellulose derivative, the intermediate sheet body 22 can be given a high-class feeling by being subjected to a predetermined treatment for imparting a strained pattern.

As the matte treatment, the second film 2 is used.
Sand blasting method of spraying sand on the surface of No. 3, etching matte method of etching the surface of the second film 23 with an alkali saponification liquid or organic solvent, matting agent coating method of coating the surface with a matting agent to form a matte, or second film A mat roll method or the like in which 23 is passed through a roll having a matte surface such as a satin finish or a paste pattern can be used.

In this embodiment, the mat roll method is used. Specifically, the raw material of the second film 23 in a molten state is supplied to the surface of the intermediate sheet body 22 which is moving in a stretched state through a predetermined supply roll, and is laminated on the surface of the intermediate sheet body 22. Before the coating layer having a uniform thickness is solidified, the matte pattern on the surface of the mat roll is transferred to the second film 23 by a pressing process by dipping the coating layer in a rotating mat roll.

FIG. 3 is a perspective view showing a state in which the rice ball R0 is wrapped by the packaging sheet 10. As shown in this figure, the packaged food R1 formed by packaging the rice ball R0 with the packaging sheet 10 has the second film 23 having a strain pattern like Japanese paper on the outermost side. Compared with the conventional packaging sheet 100 (FIG. 8) in which the contents are transparent, it is not unsightly, elegant, and
It will be rich in luxury.

When the rice ball R0 is wrapped with the packaging sheet 10, the outer sheet body 20 that can be heat-welded is used.
Since there is a portion where the first film 21 and the second film 23 overlap with the inner film 30, the appropriate portions of these overlapping portions are spot-welded to each other. By doing this
The inconvenience of unwrapping the packaging sheet 10 in which the is packaged is avoided.

Further, as shown in FIG. 1, the outer sheet body 20 has a pair of perforations 2 over the entire length in the longitudinal direction.
4 is provided, and a rupture zone 25 including a covering tape 50 is formed between the perforations 24, and the rupture zone 25 extends over the entire length in the longitudinal direction at the center position in the width direction. Since the cut tape 40 is integrally laminated on the cut tape 40, by pulling the cut tape 40 outward by grasping the tab 26 at the end of the breakable band 25, as shown by the chain double-dashed line in FIG. The perforations 24 are broken, the covering tape 50 is also broken, and the breakable band 25 is separated from the outer sheet body 20, whereby the packaging sheet 1
0 is split left and right.

Then, by separating the left and right halves of the wrapping sheet 10 in the opposite directions in the state where the wrapping sheet 10 is divided into the left and right parts, two inner film pieces 3 are originally provided.
The left inner film piece 31 and the right inner film piece 32 composed of 1, 32 are also divided into left and right, and the packaging sheet 1
0 is pulled to the left and right, which causes the inside rice ball R0
Is ready to be taken out.

Moreover, each perforation 2 of the outer sheet body 20
Since No. 4 is covered with the covering tape 50 from the inner surface side, outside moisture is reliably prevented from entering the inside through the perforations 24 in the state in which the sushi rice R0 is wrapped with the packaging sheet 10, and the storage space It is possible to reliably prevent the disadvantage that the sheet-shaped seaweed N stored in the sheet 35 gets damp.

FIG. 4 is a partially cutaway perspective view showing a second embodiment of the packaging sheet according to the present invention, and FIG.
It is a -B line sectional view. As shown in these drawings, the packaging sheet 11 of the second embodiment is intended for sandwiches, and is formed in a trapezoidal shape in which the left and right sides are symmetrical in plan view. The packaging sheet 11 includes an upper sheet body 60,
The lower film 70 of the same shape is laminated on the lower surface side of the upper sheet body 60, and the same cut tape 40 is laminated on the back surface side of the upper sheet body 60. Although the covering tape 50 used in the first embodiment is not adopted in the second embodiment, the covering tape 50 may be adopted.

The upper sheet body 60 includes a first film 61 on the inner side (lower surface side in FIG. 4), an intermediate sheet body 62 laminated on the upper surface side of the first film 61, and an intermediate sheet body 62. Further laminated second film 6
It has a basic configuration consisting of 3 and 3. The first film 61 and the second film 63 are formed of the usual thermoplastic synthetic resin similar to the first and second films 21 and 23 of the first embodiment, whereas the second film The film 63 is the intermediate sheet body 2 of the first embodiment.
Similar to No. 2, it is made of rayon paper having a Japanese paper-like pattern on both sides.

The intermediate sheet body 62 and the second film 63 are provided with a pair of perforations 64 formed along the center line of the trapezoidal packaging sheet 11 sandwiching the center line. There is. These perforations 64
Is formed between a position slightly inward from the top side of the second film 63 and a predetermined position up to the bottom side. A breakable band 65 is formed between the pair of perforations 64.

On the other hand, the first film 61 has no perforations (breakage assisting lines) 63. The upper sheet body 60 is formed by welding or adhering the second film 63 to the first film 61 in a laminated state. Then, the cut tape 40 is welded or adhered to the first film 61 side of the upper sheet body 60 thus formed so as to overlap the breakable band 65.

The end portion of the broken sheet 65 on the short side of the upper sheet body 60 is cut and raised over a predetermined range, whereby a knob 66 is wound outwardly at this portion. Are formed. The tab 66 is for peeling the breakable band 65 from the upper sheet body 60.

The lower film 70 is made of the same synthetic resin material as the inner film 30.
The upper sheet body 60 is overlapped with the cut tape 40 facing the lower film 70, and then the trapezoidal oblique side portion and the top side portion are welded to each other so that the upper sheet body 60 and the lower film 70 are welded to each other. After forming the peripheral welding zone 71, a welding process is performed so as to traverse a pair of oblique side portions in the vicinity of the trapezoidal top side portion and at a position where it does not interfere with the knob 66, and the transverse welding zone 72 is formed. The packaging sheet 11 is finished by forming the.

In the packaging sheet 11 thus obtained, an accommodating space 73 for accommodating a sandwich is formed between the lower film 70 and the first film 61 of the upper sheet body 60, and a table is provided. A loading port 74 for loading the sandwich into the storage space 73 is formed between the upper sheet body 60 and the lower film 70 at the bottom of the shape.

In FIG. 6, the sandwich R2 is the packaging sheet 1
It is a perspective view which shows the state packaged by 1. As shown in this figure, the packaged food R3 obtained by packaging the sandwich R2 with the packaging sheet 11 has the second film 63 having a strained pattern such as Japanese paper on its upper half. The overall balance is extremely graceful and rich in luxury.

Further, the upper sheet body 60 is provided with a pair of perforations 64 extending along the entire length in the longitudinal direction at the inclined surface position thereof, and a breakable band 65 is formed between the perforations 64. The cut tape 40 is provided at the center position in the width direction of the fractured band 65 so as to cover the entire length in the longitudinal direction.
Since they are integrally laminated, by pulling the cut tape 40 toward the outside by pulling the tab 66 at the end of the breakable band 65, as shown by the chain double-dashed line in FIG. Ruptures and the ruptured band 65 is disengaged from the upper sheet body 60, whereby the slope portion of the packaging sheet 11 is divided into left and right.

Then, in a state where the sloped portion of the packaging sheet 11 is divided into left and right parts, the divided portions are pinched by fingers and pulled apart from each other, whereby the remaining portion of the packaging sheet 11 is also broken, The sandwich R2 inside can be taken out.

Moreover, the perforations 64 are the lower film 7
0 is not provided, it is possible to reliably prevent the disadvantage that the sandwich R2 stored in the storage space 73 is dried when the sandwich R2 is wrapped with the packaging sheet 11.

The present invention is not limited to the above-mentioned embodiment, but also includes the following contents.

(1) In the above embodiment, the intermediate sheet bodies 22, 62 made of rayon paper are adopted, but the present invention is limited to the intermediate sheet bodies 22, 62 made of rayon paper. However, it may be made of a paper material itself such as Japanese paper. Even if a durable Japanese paper is used as the intermediate sheets 22 and 62, since the perforations 24 and 64 are provided in these, the Japanese paper is easily divided by the presence of the perforations 24 and 64. be able to.

When a paper material including a natural paper material such as Japanese paper is used as each of the intermediate sheet bodies 22 and 62 of the outer sheet body 20 and the upper sheet body 60, after the wrapped food is wrapped with the packaging sheet. If it is intended to prevent the unwrapping of the package with an adhesive or an adhesive tape without performing the spot welding process of No. 2, do not dare to coat the second film 23, 63 on the outer surface side of the intermediate sheet body 22, 62. It is also possible to By doing so, the texture of the surface of the packaging sheets 10 and 11 becomes the texture of paper, and it is possible to obtain a sense of quality in terms of tactile sense.

Furthermore, when a paper material containing a natural paper material such as Japanese paper is used as each of the intermediate sheet bodies 22 and 62, depending on the type of the encapsulated food and the packaging condition (for example, the inner film 30 and the outer sheet). It is also possible not to coat the inner surfaces of the intermediate sheet bodies 22, 62 with the first films 21, 61 instead of coating the main body 20 with an adhesive instead of welding. By doing so, the outer sheet body 20 and the upper sheet body 60
It is possible to improve the quality of packaged food while reducing the cost.

(2) In the above-described first embodiment, the packaging sheet 10 is composed of the outer sheet body 20 and the inner film 30 in order to mount the dried sheet-like seaweed N, and the storage space 35 is provided therebetween. By forming the sheet-shaped seaweed N into the storage space 35, the moisture of the rice nigiri R0 is prevented from being transferred to the sheet-shaped seaweed N, but from the beginning, the seaweed was wrapped around the rice nigiri R0 and the seaweed became wet. When the seaweed which is in the state is to package wet type rice balls, the inner film 30 is not particularly necessary because the storage space 35 for storing the sheet-shaped seaweed N is unnecessary, and the outer sheet body 20 is not necessary. The wrapping sheet may be composed of only one.

(3) A packaging sheet 12 as shown in FIG. 7 can be cited as one in which the inner sheet 30 is not used and only the outer sheet body constitutes the packaging sheet. FIG. 7 is a cross-sectional view showing a third embodiment of the packaging sheet 12 according to the present invention, in which the sushi rice R0 is directly used by the packaging sheet 12 without interposing the dried sheet-like seaweed N.
It is for so-called direct winding, in which (including seaweed rolled in advance) is wrapped. As shown in this figure, the packaging sheet 12 of the third embodiment has an outer sheet body 20 on the back surface side (upper surface side in FIG. 7) of the outer sheet body 20 instead of the inner film 30 of the first embodiment. Curvature prevention sheet main bodies 80 made of the same material are laminated.

The curving prevention sheet body 80 includes a first film 81 corresponding to the first film 21 of the outer sheet body 20 (that is, made of the same material), and an intermediate sheet body 82 corresponding to the intermediate sheet body 22. , The second film 2
And a second film 83 corresponding to No. 3.

The curving prevention sheet body 80 as described above is
A pair of tapes having widths set so as not to interfere with the covering tape 50 is prepared, and each of them is provided on both sides of the outer sheet body 20 in the width direction over the entire length in the longitudinal direction (direction orthogonal to the paper surface of FIG. 7). A state in which each peripheral edge portion is laminated and then welded to the peripheral edge portion of the outer sheet body 20, so that the outer sheet body 20 and the curving prevention sheet body 80 face each other on the front and back sides except the portion where the covering tape 50 exists. It has become. Other configurations are similar to those of the packaging sheet 10 of the first embodiment.

According to the packaging sheet 12 of the third embodiment,
Outer sheet body 20 and curving prevention sheet body 8 having the same structure
Since 0 and 0 are laminated symmetrically with respect to each other and the edges are welded to each other, the packaging sheet 12 can always maintain a flat state without being curved. Therefore,
When the packaging sheets 12 are sequentially supplied to a predetermined packaging device to automatically perform the packaging processing of the rice ball R0, there is no problem that the packaging sheet 12 does not come into contact with the machine due to the curved shape, and it is always appropriate. It is possible to secure a proper automatic packaging process. However, even if the packaging sheet 12 is for direct winding, the curving prevention sheet body 80 may not be provided as long as the packaging sheet 12 does not curve.

(4) In the above embodiment, the usual transparent synthetic resin films are used as the inner film 30 and the lower film 70, but instead of this, the inner film 30 and the lower film 70 are used. Alternatively, a material using the same material as the outer sheet body 20 may be adopted. By doing so, the packaging sheet gives the impression that it is entirely made of Japanese paper, and the sense of quality of the packaged foods R1 and R3 can be further enhanced.

(5) In the above-described second embodiment, the tab 66 formed by cutting and raising in a U-shape is provided at the short-side end of the upper sheet 60.
The present invention is not limited to the tab 66 having a U-shape, and the end portion on the short side of the upper sheet body 60 is passed along the extension line of the perforation 64 until it passes the edge portion (Fig. In the example shown in FIG. 4, notches may be provided until the peripheral welding zone 71 is passed. By doing so, since the tip edge of the tab 66 is exposed to the outside, it is possible to raise the tab 66 after applying the fingertip to the tip edge, which makes the tab 66 easier to pick. Become.

[0073]

As is apparent from the above description, according to the invention described in claim 1 of the present invention, the packaging sheet is a sheet body for wrapping the encapsulated food, and a rupture for guiding the division of the sheet body. Since the sheet body is subjected to a matte treatment, which is a surface matting treatment, the encapsulated food packaged by the packaging sheet cannot be covered by the sheet body if the sheet body is transparent. Packaged food is transparent and unsightly,
Not only the inconvenience that the product looks cheap is eliminated, but the improved texture gives a high-class feeling, which can increase the total commercial value of the packaged food.

According to the packaging sheet of the second aspect of the present invention, the sheet body has two break assist lines and a cut as a break means that is laminated between the break assist lines and extends parallel to the break assist lines. Since the tape is provided, even if the sheet body is a Japanese paper that is difficult to break, pulling the cut tape can easily break the sheet body along the pair of breakage assistance lines.

Further, since the covering tape laminated on the inner surface of the sheet body so as to cover the breakage assist line is provided, the flow of air to the inside of the packaging sheet through the breakage assist line is blocked, and the flow of air is prevented. It is possible to reliably prevent the deterioration of the encapsulated food due to the above.

According to the packaging sheet of claim 3 of the present invention, the packaging sheet comprises an inner sheet body for wrapping the food to be encapsulated in a state where the inner surface side is in direct contact with the outer sheet body laminated on the inner sheet body. Since the outer sheet body is configured and the matte treatment is applied to the outer sheet body, the packaged food can be made more hygienic while enhancing the high-grade feeling of the packaged food.

According to the packaging sheet of claim 4 of the present invention, the outer sheet body comprises a first film made of synthetic resin, which is the inner side, and an intermediate sheet having a strain pattern laminated on the first film, The intermediate sheet is composed of a three-layer structure with the second film laminated on the intermediate sheet, and two breaking assist lines are provided across the outer sheet body, and the matte treatment is applied to the second film. Even if the intermediate sheet is hard to be torn, the outer film can be easily torn along the line even if the intermediate sheet is hard to be torn.

According to the packaging sheet of the fifth aspect of the present invention, the outer sheet body is provided with the covering tape extending in the direction of the breakage assist line laminated so as to cover each breakage assist line on the inner surface side. Therefore, not only the deterioration of the encapsulated food due to the circulation of air can be reliably prevented, but also the leakage of the liquid material from the packaged food can be surely prevented.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing a first embodiment of a packaging sheet according to the present invention.

FIG. 2 is a cross-sectional view taken along the line AA of the packaging sheet shown in FIG.

FIG. 3 is a perspective view showing a state in which hand-held rice is wrapped with a packaging sheet.

FIG. 4 is a partially cutaway perspective view showing a second embodiment of the packaging sheet according to the present invention.

5 is a cross-sectional view taken along line BB of the packaging sheet shown in FIG.

FIG. 6 is a cross-sectional view showing a state in which the sandwich is wrapped with a wrapping sheet.

FIG. 7 is a partially cutaway perspective view showing a third embodiment of the packaging sheet according to the present invention.

FIG. 8 is a diagram illustrating a conventional packaging sheet, (a)
Shows a perspective view of the packaging sheet, and (b) shows a perspective view of a state in which the rice balls are wrapped with the packaging sheet.

[Explanation of symbols]

10 Packaging sheet (sheet body) 11 packaging sheet 20 outer sheet body 21 first film 22 intermediate sheet body 23 Second Film 24 Perforation 25 Broken zone 26 Pick 30 Inner film (inner sheet) 31 Left inner film piece 32 Right inner film piece 33 overlapping part 34 weld zone 35 Storage space 40 Cut tape 50 Cover tape 51 Weld zone 60 upper sheet 61 first film 62 Intermediate Sheet 63 Second Film 64 Perforation 65 Broken zone 66 picked pieces 70 Lower film (lower sheet) 71 peripheral weld zone 72 transverse weld zone 73 storage space 74 loading port N sheet-shaped seaweed R0 rice balls R1, R3 Packaged food R2 Sandwich

Claims (5)

[Claims] 1. A packaging sheet for an encapsulated food used for packaging an encapsulated food, comprising a sheet body for wrapping the encapsulated food, which has a breaking means for guiding breaking. A packaging sheet for encapsulated foods, wherein the sheet body is matt-treated. 2. The sheet body is configured to have two breakage assisting lines and a covering tape laminated on the inner surface side so as to cover each breakage assisting line, and the breakage means is a breakage assisting device. The packaging sheet for encapsulated food according to claim 1, which is a cut tape provided between the lines and along the breaking assistance line. 3. The sheet body comprises an inner sheet body that comes into contact with the encapsulated food and an outer sheet body laminated on the inner sheet body, and the mat treatment is applied to the outer sheet body. The packaging sheet for encapsulated food according to claim 1, wherein 4. The outer sheet body comprises an intermediate sheet body,
The synthetic resin first film laminated on the intermediate sheet body, which is the inner surface side, and the second film laminated on the intermediate sheet body, which is the outer surface side, have a three-layer structure. 4. The packaging sheet for encapsulated food according to claim 3, wherein the intermediate sheet is applied to a film and the intermediate sheet is made of a material capable of forming a strained pattern. 5. The outer sheet body has two breaking assist lines and a covering tape laminated to cover each breaking assist line on the inner surface side, and the breaking means breaks. The packaging sheet for encapsulated food according to any one of claims 3 to 5, which is a cut tape provided between the assistance lines and along the breaking assistance line.