JP2004262536A - Food packaging material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a food packaging material enabling a rice ball to be wrapped with a sheet-like food such as a sea weed at the time of eating it after a package is unsealed and further having a luxurious appearance. <P>SOLUTION: The food packaging material is a bag-like food packaging material in which a sheet-like food 5 wound around a rice ball 4 is stored in a storing section 3 between an outer film 1 and an inner film 2. The outer film 1 has a front surface layer section 6 made of a paper sheet or non-woven fabric. The front surface layer section 6 has a heat sealing characteristic. An unsealing operation piece 14 is arranged at the outer film 1 and at the same time the inner film 2 can be formed by a left section 2a and a right section 2b that can be separated. In addition, the front surface layer section 6 can be made of a Japanese paper sheet having a heat sealing agent layer at its front surface side. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a food packaging material for packaging a food in which a sheet-like food such as laver is rolled and eaten at the time of opening.
[0002]
[Prior art]
Conventionally, as a food packaging material that can be eaten by wrapping a sheet of food such as laver on rice balls when opening, it is stored between the outer film and the inner film consisting of the left part and the right part where the inner ends overlap each other There is a part in which a sheet-shaped food is stored (see Patent Document 1).
[0003]
This type of food packaging material is made of a transparent synthetic resin film, so that the contents of the sheet food, rice balls, and the print applied to the outer film can be seen as they are, and the viewing angle In some cases, the film reflects light well, so that the feeling of luxury was not so much felt.
[0004]
Therefore, there has been a demand for a food packaging material that can be packaged so that a more luxurious feeling can be felt.
[0005]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 9-2523
[Problems to be solved by the invention]
Therefore, an object of the present invention is to provide a food packaging material in which a sheet-like food such as laver is wrapped around a rice ball and can be eaten at the time of opening, so that a higher-grade feeling can be felt. .
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the present invention employs the following technical means.
[0008]
The food packaging material of the present invention is a bag-like food packaging material in which a sheet-like food 5 to be wound around rice balls 4 is accommodated in a storage portion 3 between an outer film 1 and an inner film 2, and the outer film 1 is made of paper. Alternatively, it has a surface layer 6 made of a nonwoven fabric, and the surface layer 6 has heat sealability.
[0009]
The outer film 1 can be provided with an opening operation piece 14 and can be composed of a left portion 2a and a right portion 2b that can separate the inner film 2.
[0010]
Further, the surface layer portion 6 can be made of Japanese paper having a heat sealant layer 15 on the front surface side.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0012]
The food packaging material of the present invention is a bag-like food packaging material in which a sheet-like food 5 to be wound around rice balls 4 is accommodated in a storage portion 3 between an outer film 1 and an inner film 2, and the outer film 1 is made of paper. Alternatively, it has a surface layer 6 made of a nonwoven fabric, and the surface layer 6 has heat sealability.
[0013]
1 is a perspective view of a food packaging material according to an embodiment of the present invention, FIG. 2 is a perspective view of the food packaging material in an exploded state, FIG. 3 is a cross-sectional view of an outer film 1, and FIG. 5 is a perspective view showing how the rice wrapper 4 is wrapped with the food packaging material, and FIG. 6 is a view from the back side of the packaged food wrapping the rice ball 4 with the food packaging material. FIG. 7 is a perspective view as viewed from the front side, and FIG. 8 is an explanatory view showing a state in which the rice 4 wound in a sheet-like food 5 is taken out from the food packaging material.
[0014]
This food packaging material is composed of an outer film 1, an inner film 2, and a sheet-like food 5, as shown in FIGS. The outer film 1 and the inner film 2 have a substantially rectangular shape of the same size, and the peripheral portions 7 thereof are sealed by heat welding or the like as shown in the figure.
[0015]
The outer film 1 includes an outer film substrate 8 and a surface layer 6 as shown in FIG. The outer film base 8 is a transparent film made of a synthetic resin such as OPP (stretched polypropylene), and can be printed with appropriate characters and patterns 9.
[0016]
Two cut tapes 12 are adhered to the outer film substrate 8 at a central portion on the back side thereof between a pair of sides (short sides) 10 and 11 facing each other. , 11 are provided with cuts 13 on both sides of the cut tape 12, so that an opening operation piece 14 is formed. When the unsealing operation piece 14 at the edge of the side 10 is pulled, the outer film 1 is torn in a band shape up to the opposing side 11 so that the outer film 1 can be divided right and left.
[0017]
Further, the outer film 1 has a surface layer portion 6 on an outer film substrate 8, and the surface layer portion 6 has a heat sealing property. In this embodiment, the surface layer portion 6 is made of translucent Japanese paper, and has a heat sealant layer 15 on the surface side. As the surface layer portion 6, for example, Japanese paper having an appropriate thickness such that the raw material fibers are intertwined in some places to form a pattern can be used. The heat sealant layer 15 can be made of a polyolefin-based thermoplastic resin.
[0018]
The surface layer portion 6 has the same size and the same shape as the outer film substrate 8 and covers the entire outer film substrate 8. However, even if the surface layer portion 6 does not cover the entire outer film substrate 8, a point seal described below is performed. A portion or the like that covers a part of the outer film substrate 8 may be used.
[0019]
The surface layer portion 6 may be any material as long as the print 9 of the outer film substrate 8 can be seen through, and a nonwoven fabric other than Japanese paper can be used. The material of the nonwoven fabric may be any suitable material, and if the material itself has heat sealing properties, it is not necessary to provide the heat sealing agent layer 15 on the surface side.
[0020]
An adhesive layer 16 is interposed between the outer film base 8 and the surface layer 6, and both are adhered to each other by an adhesion method such as dry lamination. The dry lamination may be performed by diluting an adhesive with an organic solvent, applying the diluted adhesive to one of the outer film substrate 8 and the surface layer portion 6, drying the adhesive, and then pressing the other on the other, or a non-solvent method using no organic solvent.
[0021]
The inner film 2 can be made of an appropriate material such as a synthetic resin similar to the outer film base 8. As shown, the inner film 2 is composed of two films, a left part 2a and a right part 2b, and the left part 2a and the right part 2b overlap with each other by about 1 to 2 cm at the outer edges at the center. Like that.
[0022]
The outer film 1 and the inner film 2 have an unsealed region inside the peripheral edge portion 7, and this portion serves as a storage portion 3 for storing the sheet-shaped food 5.
[0023]
The sheet-shaped food 5 is laver, bonito, kelp, or the like formed in a sheet shape with gelatin, and is appropriately selected and used. The operation of accommodating the sheet-like food 5 in the accommodating section 3 may be either a manual operation or a method of automatically inserting the same by a machine.
[0024]
In order to wrap the rice balls 4 with this food packaging material, as shown in FIG. 4, the inner film 2 is placed face up, and the rice balls 4 are placed on the inner film 2 of the sheet food 5. The nigiri rice 4 is formed in a triangular shape.
[0025]
Next, as shown in FIG. 5, the food packaging material is bent so that the side 10 on which the opening operation piece 14 is provided and the side 11 opposite thereto are aligned, and the food packaging material is placed along the rice ball 4. After wrapping, as shown in FIG. 6, the ends are overlapped on the back side, and the overlapped portion 17 is point-sealed and fixed by heat welding. Since the surface layer 6 of the outer film 1 of the food packaging material has heat sealing properties, point sealing by heat welding is possible in this way.
[0026]
The rice balls 4 wrapped in the food packaging material can be sold as a packaged food at a store such as a convenience store. The packaged food using this food packaging material has the contents covered by the translucent surface layer 6 of the outer film 1, and the printing 9 of the outer film base 8 under the pattern of the surface layer 6, and the sheet-like food are prepared. It can be seen in a slightly blurred state with little reflection of light, giving a sense of luxury.
[0027]
In order to open the food packaging material, the opening operation piece 14 is pinched by a finger and pulled. The outer film 1 is torn from one side where the opening operation piece 14 is provided to the other side opposite thereto. When the outer film 1 is torn to the end, the outer film 1 is divided into two right and left parts at the center, so that each of the divided parts is pulled outward, respectively, so that the left part 2a of the inner film 2 The right portion 2b is separated, and the rice balls 4 are exposed while being covered with the sheet-like food 5.
[0028]
In addition, the packaged food using the food packaging material of the present invention is not limited to a rice ball wrapped in a triangular rice ball 4, but may be any suitable shape such as a round bar-shaped hand-rolled sushi or a substantially conical hand-rolled sushi. can do. In addition, the rice balls 4 may be sandwiches of a cutlet, which is an ingredient in the center, sushi rice, mixed rice, cooked rice, or the like.
[0029]
In addition, in the case of conventional food packaging materials made of synthetic resin films, incineration may be regulated, but this food packaging material may be incinerated by using paper such as Japanese paper as the surface layer 6. Since the surface layer portion 6 burns well with the outer film base 8 and the inner film 2 made of synthetic resin, it can be incinerated safely. In addition, consumers can conveniently dispose of the opened food packaging material as burning garbage. The amount of the surface layer 6 made of paper is preferably 51% or more of the weight of the food packaging material.
[0030]
【The invention's effect】
The food packaging material and the packaged food of the present invention have the above-described configuration. When the rice packaging 4 is used to package the rice balls 4, a higher quality can be felt as compared with the conventional one.
[Brief description of the drawings]
FIG. 1 is a perspective view of a food packaging material according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view of the food packaging material according to the embodiment of the present invention.
FIG. 3 is a sectional view of an outer film of the food packaging material according to the embodiment of the present invention.
FIG. 4 is a perspective view of the food packaging material according to the embodiment of the present invention, in which rice is placed on the food packaging material.
FIG. 5 is a perspective view showing a manner of wrapping rice balls in the food packaging material according to the embodiment of the present invention.
FIG. 6 is a perspective view of a packaged food product obtained by wrapping rice balls with the food packaging material according to the embodiment of the present invention, as viewed from the back side.
FIG. 7 is a perspective view of a packaged food product obtained by wrapping rice balls with the food packaging material according to the embodiment of the present invention, as viewed from the front side.
FIG. 8 is an explanatory view showing a state where rice is wound from a food packaging material according to the embodiment of the present invention and is wound on a sheet-like food.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Outer film 2 Inner film 2a Inner film left part 2b Inner film right part 3 Accommodating part 4 Nigiri rice 5 Sheet food 6 Surface layer part 14 Opening operation piece 15 Heat sealant layer

Claims (3)

A bag-like food packaging material containing a sheet-like food (5) wound around rice balls (4) in a storage portion (3) between the outer film (1) and the inner film (2), wherein the outer film ( (1) A food packaging material having a surface layer (6) made of paper or nonwoven fabric, and the surface layer (6) has heat sealability. The food packaging material according to claim 1, wherein an opening piece (14) is provided on the outer film (1), and the inner film (2) is composed of a separable left portion (2a) and a right portion (2b). The food packaging material according to claim 1 or 2, wherein the surface layer portion (6) is Japanese paper having a heat sealant layer (15) on the surface side.

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