JP2014088204A - Packaging sheet and packaged rice lump - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging sheet which prevents sheet-like foods from moistening even when a rice lump is packaged.SOLUTION: A packaging sheet 1 is formed by holding a sheet-like food 4 between a rectangular outer film 2 and an inner film 3 arranged on the back surface side of the outer film 2, in an expanded state, and fusion-adhering the outer periphery of the sheet-like food 4 with the outer film 2 and the inner film 3. The outer film 2 has a segmentable part 21, and the inner film 3 has a cleavable part 32 formed continuously in parallel with and throughout the segmentable part 21. The cleavable part 32 is formed to be water-tight and is broken by pulling in a direction nearly perpendicular to the cleavable part 32.

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 that can package a rice lump, and a packaged rice lump.

  As a packaging sheet such as a stick-shaped rice lump or rice ball sold at a convenience store or 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 a part capable of being divided into the center in the width direction or the center in the longitudinal direction. The inner film is composed of two film pieces, each of which is thermally welded in the vicinity of the outer periphery of the outer film. The inner ends of the pieces are overlapped on the severable portion of the outer film (see, for example, Patent Document 1).

The packaged rice cake in which the stick-shaped rice cake and rice ball are wrapped by the packaging sheet was thermally welded to the outer film by dividing the outer film into two parts by the severable portion and pulling one of the divided outer films outward. One piece of the inner film is pulled together.
Similarly, by pulling the other outer film to the outside and pulling it out together with the film pieces of the remaining inner film, you can obtain a lump of rice around which the sheet-like food is wrapped directly. Can do.

Japanese Patent Laid-Open No. 2002-101832

  Since the inner film is simply the inner ends of the film pieces overlapped, if it is in contact with a large amount of water for a long time, moisture will enter the packaging sheet from the overlapping portion of the film pieces, and the sheet The food may become wet and the texture will be poor.

  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 (1) according to the present invention is:
In the unfolded state, the sheet-like food (4) is sandwiched between the rectangular outer film (2) and the inner film (3) arranged on the back side of the outer film (2), and the outer film (2) The inner film (3) is integrated by welding the outer periphery of the sheet-like food (4),
The outer film (2) has a severable part (21),
The inner film (3) has a tearable portion (32) continuously provided over the entire length in parallel with the separable portion (21), and the tearable portion (32) is watertight. And is broken by pulling in a direction substantially perpendicular to the tearable portion (32).

  Moreover, the packaged rice lump according to the present invention is formed by packaging the rice lump (6) with the packaging sheet.

  The packaging sheet (1) according to the present invention wraps the rice chunk (6) because the tearable portion (32) formed on the inner film (3) on the side in contact with the rice chunk (6) is watertight. In this case, since the moisture from the rice lump (6) does not permeate or penetrate, the sheet-like food (4) does not get wet, and the dry state of the sheet-like food (4) can be maintained.

  The tearable portion (32) can be broken only by pulling it in a direction substantially perpendicular to the tearable portion (32). Therefore, when unwrapping from the packaged rice lump, the outer film (2) can be divided with the outer film (2) after the outer film (2) is divided by the severable part (21) or with the severable part (21). The inner film (3) was broken at the tearable portion (32) by simply pulling in a direction substantially perpendicular to the portion (21), and the dried sheet-like food (4) was wound directly on the inner film (3). A lump (6) can be obtained.

  The packaged rice cake obtained by packaging the rice cake (6) with the packaging sheet (1) of the present invention is a state in which the dried sheet-like food (4) is wound directly around the rice cake (6). It looks good after unpacking and has a good texture.

FIG. 1 is an exploded perspective view of a packaging sheet according to the present invention. FIG. 2 is a perspective view of the inner film. FIG. 3 is a perspective view of a stick-shaped rice lump placed on the packaging sheet according to the present invention. FIG. 4 is a cross-sectional view taken along line 3A-A of FIG. FIG. 5 is a perspective view of a packaged rice cake obtained by packaging a rice cake with the packaging sheet according to the present invention. FIG. 6 is a perspective view showing a procedure for unwrapping the packaged rice lump according to the present invention. FIG. 7 is a perspective view showing a procedure for unpacking the package following FIG. FIG. 8 is a perspective view showing a procedure for unpacking the package following FIG. FIG. 9 is a perspective view of a state in which the package is unwrapped and the sheet-like food is directly covered with the stick-shaped rice lump. FIG. 10 is a cross-sectional view showing a different embodiment of the packaging sheet of the present invention. FIG. 11 is a cross-sectional view showing a different embodiment of the packaging sheet of the present invention. FIG. 12 is a cross-sectional view showing a different embodiment of the packaging sheet of the present invention. FIG. 13 is a cross-sectional view showing a different embodiment of the packaging sheet of the present invention. FIG. 14 is a perspective view of a packaged rice cake obtained by packaging a stick-shaped rice cake with the packaging sheet shown in FIG. 13. FIG. 15 is a perspective view showing a procedure for unwrapping the packaged rice chunk of FIG. FIG. 16 is a perspective view of a packaged rice cake obtained by packaging triangular rice balls with the packaging sheet of the present invention. FIG. 17 is a perspective view of a packaged rice cake obtained by packaging triangular rice balls in a bag shape using the packaging sheet of the present invention.

  Hereinafter, the packaging sheet (1) of the present invention and the packaged rice cake obtained by packaging the rice cake (6) with the packaging sheet (1) will be described with reference to the drawings.

  As shown in FIG. 1, the packaging sheet (1) is formed by sandwiching a sheet-like food (4) between a rectangular transparent outer film (2) and an inner film (3).

The outer film (2) has a length of about 20 cm and a width of about 12 cm.
The length of the outer film (2) is about 1.4 to 1.7 of the circumference when the packaged rice cake is a rod-shaped rice cake (6), and the width is about the rod-shaped rice cake (6). It is a length obtained by adding about 2 cm to the length.

  The outer film (2) has a severable portion (21) capable of tearing the outer film (2) in the direction over its entire length at the approximate center in the width direction or longitudinal direction.

  In the embodiment shown in FIG. 1, the severable portion (21) is formed by bonding the cut tape (22) to the back surface of the outer film (2) at the substantially center in the width direction over the entire length. When one end of the cut tape (22) is pulled, the outer film (2) can be torn along the tape direction.

  On one end (25) of the outer film (2), on the outside of the cut tape (22), close to the cut tape (22) as shown in FIGS. Short and parallel cuts (23) and (23) are made in parallel. In order to pull the cut tape (22) by pinching between the cuts (23) and (23), the cut (23) (23) side is the end on the side where the outer film (2) starts to be cut (hereinafter referred to as "cutting start end ( 25) ").

  The inner film (3) is disposed on the outer film (2). The inner film (3) has a tearable portion (32) provided continuously over the entire length in parallel with the breakable portion (21) of the outer film (2). The tearable part (32) is configured to be watertight and can be broken by pulling in a direction substantially perpendicular to the tearable part (32).

  More specifically, the inner film (3) can be composed of two identical film pieces (31) and (31) as shown in FIGS. 1 to 4, and the outer film (2) is divided. Along the possible portion (21), the inner edges of the film pieces (31) and (31) are folded at the fold line (35) on the separable portion (21), and the folded end portion (31a) is used as the other film. It has a tearable part (32) inserted between the piece (31) and the end part (31a), and the tearable part (32) is overlapped so as to mesh with each other (31 ) (31) and the end portions (31a) and (31a) can be formed by continuous heat welding so as to be substantially parallel to the separable portion (21).

  As shown in FIG. 2 and FIG. 4, the heat welding part (36) is applied over the entire length of the film pieces (31) (31) and the end parts (31a) (31a) along the severable part (21). The film pieces (31) and (31) and the end portions (31a) and (31a) are joined in a watertight manner to prevent moisture from entering, but pulled in a direction substantially perpendicular to the tearable portion (32). When the film piece (31) (31) and the end (31a) (31a) are unbonded and peeled off at the heat-welded part (36), the film pieces (31) (31) are separated from each other. To apply.

  The film piece (31) may be divided at the heat welding part (36).

  The heat welding can be performed with a heated iron, a rotating round blade, a roller or the like.

When packaging the rod-shaped rice cake (6), end wrapping portions (33) and (33) covering the end face of the rod-shaped rice cake (6) can be formed on the inner film (3). The end wrapping portions (33) and (33) are formed on the side surface of the outer film (2) close to the end portion on the opposite side to the dividing start end (25).
The end wrapping portions (33) and (33) can be formed to protrude outward from the side edges along the longitudinal direction of both film pieces (31) and (31), for example, and the end wrapping portions ( 33) (33) can be heat-welded to the inner film (3) as a separate member.

  The protruding height of the end wrapping portions (33) and (33) is about 1.3 times the diameter of the rod-shaped rice cake (6).

  The inner film (3) (film pieces (31) and (31)) and the end wraps (33) and (33) are preferably made of a material having a high detachability from the rod-shaped rice cake (6). An embossed film in which the convex portions are uniformly distributed can also be used. Thereby, it can prevent that a rice grain adheres to an inner film (3).

The sheet-like food (4) can be exemplified by a sheet-like seaweed, but it is a thin food that does not interfere with the wrapping of the packaging sheet (1), such as those obtained by forming the rag kombu into a sheet shape or thinly extending the straw. I just need it.
The sheet-like food (4) has a length of about 15 cm and a width of about 10 cm, and the length is slightly more than one time (about 1.2 times) the circumference of the stick-shaped rice cake (6), and the width length. Is substantially the same as the length of the stick-shaped rice cake (6).

  As shown in FIGS. 1, 3 and 4, the sheet-like food (4) and the inner film (3) are stacked on the outer film (2), and the outer film (2) and the inner film (3) are joined. Thus, a packaging sheet (1) is formed. 3 and 4, joining is performed by thermal welding, and reference numerals (11) and (11) indicate welding lines. It should be noted that it is desirable not to perform heat welding in the vicinity of the severable portion (21) of the outer film (2) or the overlapping portion of the film pieces (31) (31).

  Further, the outer film (2) and the inner film (3) are subjected to spot welding (12) at a plurality of locations so as to surround the sheet food (4) so that the stored sheet food (4) does not shift. It is desirable to keep it.

  As described above, the lump (rod-shaped lump) (6) is packaged by the packaging sheet (1) composed of the outer film (2), the sheet-like food (4), and the inner film (3).

  The rod-shaped rice cake (6) can have a diameter of about 4 cm and a length of about 10 cm. The stick-shaped rice cake (6) is a cylindrical cake such as white rice or baked rice, and a sprinkled food such as sesame may be sprinkled partially or entirely.

  As shown in FIG. 3, the rod-shaped rice cake (6) is placed on a packaging sheet (1) with the inner film (3) on top. The rod-shaped rice cake (6) is perpendicular to the severable parts (21) and (21) of the outer film (2) in a state of being tilted toward the end wrapping part (33) and (33) of the inner film (3), and both ends thereof It can be placed near the center so as not to protrude from the sheet-like food (4).

  Next, as shown by the arrow B in FIG. 3, both ends of the rod-shaped rice cake (6) are wrapped with the both-end wrapped portions (33) and (33) of the inner film (3), and the packaging sheet as shown in FIG. A wrapped rice lump can be obtained by winding (1) around the outer periphery of the rod-shaped rice lump (6).

  After packaging the stick-shaped rice cake (6), as shown in FIG. 5, the cutting start end (25) side, which is the winding end side of the outer film (2), can be sealed by the fastening means (5). . In the embodiment shown in the figure, two fastening means (5) are stuck with the separable part (21) in between.

  Since the packaged rice cake is watertight at the tearable part (32) of the inner film (3), even if the rice cake (6) is packaged, the moisture and water vapor of the rice cake (6) will remain inside the film. (3) The inside of the packaging sheet (1) is not reached through. In particular, since the tearable portion (32) is watertight, it is possible to prevent intrusion of moisture and water vapor. For this reason, a sheet-like food (4) can maintain a dry state, without being damp, and can maintain a dry state.

The packaged rice lump packaged as shown in FIG. 5 can be unpacked in the following manner.
First, as shown in FIG. 6, when the fastening means (5) is peeled off, the packaging sheet (1) rises on the dividing start end (25) side. From this state, loosen the wrapping of the packaging sheet (1) around the rice block (6) a little, and use the fingertip to cut the cut tape (22), which is the cuttable part (21), at the cutting start end (25) side. As shown in FIG. 7, the outer film (2) is cut along the cut tape (22). By pulling the cut tape (22) to the end, the outer film (2) is completely divided into left and right.

  Next, one of the divided outer films (2) is grasped together with the rice block (6), and the other outer film (2) is picked and pulled in the direction of the arrow as shown in FIG. By this tension, the inner film (3) joined to the outer film (2) by thermal welding (11) is subjected to a substantially vertical pulling force on the tearable portion (32). (32) is peeled off at the heat welding part (36), and the film pieces (31) and (31) are separated from the folded back end parts (31a) and (31a). As a result, the divided one outer film (2) and film piece (31) are pulled out integrally, leaving the sheet-like food (4). As shown in FIG. 8, the inner film (3) is pulled out when the folded end (31a) is pulled and the fold (35) is opened when the heat welded portion (36) is peeled off. Become.

  Next, the rice cake (6) wrapped in the exposed sheet food (4) is grasped, and the remaining outer film (2) is pulled to the opposite side, whereby the remaining outer film (2) and the film piece ( 31) is pulled out integrally leaving the sheet-like food (4), and as shown in FIG. 9, a rice cake (6) on which the sheet-like food (4) is directly wound can be obtained.

  Since the sheet-like food (4) is maintained in a dry state, it does not break when stuck to the outer film (2) or inner film (3) when unpacking. Can be solved.

  The resulting rice lump (6) has a good texture because the dried sheet-like food (4) is wound on it, and the sheet-like food (4) is dry and sticks by hand. There is nothing.

  FIG. 10 thru | or FIG. 13 is the perspective view and sectional drawing of a different packaging sheet (1) of this invention. The same reference numerals as above denote the same or equivalent members, and the description thereof will be omitted as appropriate.

  The packaging sheet (1) shown in FIG. 10 is an example in which the heat-welded portion (36) is one strip in the tearable portion (32) shown in FIG. By making the heat welding part (36) into one line, it is inferior in water tightness to the packaging sheet (1) shown in FIG.

  The packaging sheet (1) shown in FIG. 11 has an inner edge of each of the film pieces (31) and (31) of the inner film (3) of about 1 cm on the severable portion (21) of the outer film (2). A heat weld (36) is applied by overlapping the overlap width to form a tearable portion (32).

The packaging sheet (1) shown in FIG. 12 is an example in which the inner film (3) is composed of a single film. The inner film (3) has a tearable portion (32) thinned so as to be breakable along the splittable portion (21) of the outer film (2).
The tearable portion (32) is formed watertight without penetrating the inner film (3), and the inner film (3) is pulled in a direction substantially perpendicular to the tearable portion (32). Sometimes, the inner film (3) is split into two from the tearable portion (32).

  The thinned tearable portion (32) may be formed in a groove shape by applying a heated iron, a heated or non-heated rotating round blade, a roller or the like to the inner film (3).

  Since the inner sheet (3) is watertight, the packaging sheet (1) does not allow moisture to enter the sheet-like food (4) through the inner film (3) when the rice cake (6) is packaged. The dry state of the food (4) can be maintained.

  Also, when unpacking, the inner film (3) is pulled in a direction substantially perpendicular to the tearable portion (32) as in the above embodiment, so that it can be easily broken and dried. A rice cake (6) in which a certain sheet-like food (4) is directly wound can be obtained.

FIG. 13 shows an embodiment in which the cutable portion (21) of the outer film (2) is replaced with a cut tape and a plurality of cuts such as perforations are formed continuously.
In order to prevent moisture from entering from the cut which is the severable part (21), the outer film (2) is heat-bonded with a strip-shaped cover film (24) on the inner side along the severable part (21) (18 ) Etc. to cover the cut.
Of course, also in the packaging sheet (1) in other embodiments, the perforated portion (21) of the outer film (2) can adopt the perforation shown in FIG.

  FIG. 14 shows an embodiment in which the rice cake (6) is packaged by the packaging sheet (1) shown in FIG. The procedure for packaging the rice chunk (6) is the same as in the above embodiment.

  As shown in FIG. 15, the packaged rice chunk of FIG. 14 grasps one outer film (2) together with the rice chunk (6), picks the other outer film (2), and pulls it in the direction of the arrow. By this pulling, the outer film (2) is divided at the separable portion (21), and the inner film (3) joined to the outer film (2) by thermal welding (11) is separated from the tearable portion. Since a tensile force in a substantially vertical direction acts on (32), the film pieces (31) and (31) are broken at the tearable portion (32), and the outer film (2) and the film as shown in FIG. The piece (31) is pulled out integrally leaving the sheet-like food (4).

  Next, the rice cake (6) wrapped in the exposed sheet food (4) is grasped, and the remaining outer film (2) is pulled to the opposite side, whereby the remaining outer film (2) and the film piece ( 31) is pulled out integrally leaving the sheet-like food (4), and a rice cake (6) in which the sheet-like food (4) is directly wound can be obtained (see FIG. 9).

  In addition, when the packaging sheet (1) is tightly wound around the rice lump (6), the packaging may not be unraveled as described above. In such a case, the packaging can be smoothly unwound by removing the fastening means (5) and slightly loosening the winding of the packaging sheet (1).

  Also in the present embodiment, since the sheet-like food (4) is kept in a dry state, it is not stuck to the outer film (2) or the inner film (3) and broken when unpacking. Moreover, since the obtained rice lump (6) is wrapped with the dried sheet-like food (4), the texture is good, and since the sheet-like food (4) is dried, it can be grasped by hand. There is no stickiness.

  FIG. 16 shows a triangular rice ball (rice cake (6) with a rectangular wrapping sheet (1) by removing the end wrapping portions (33) and (33) protruding left and right from the inner film (3) shown in FIG. )). The rice lump (6) is packaged so that a separable portion (21) and a tearable portion (not shown) extend from the center of the bottom surface toward the apex.

  FIG. 17 shows a triangular rice ball (rice cake (6) with a rectangular packaging sheet (1) by removing the end wrapping portions (33), (33) protruding left and right from the inner film (3) shown in FIG. )) Is packaged in a bag shape, and the upper end is heat-welded (15). The rice lump (6) is packaged so that a separable portion (21) and a tearable portion (not shown) extend from the center of the bottom surface toward the apex.

  In any of the examples, the sheet-like food (4) is kept in a dry state, and therefore, when unpacked, it does not stick to the outer film (2) or the inner film (3) and is not torn. . Moreover, since the obtained rice lump (6) is wrapped with the dried sheet-like food (4), the texture is good, and since the sheet-like food (4) is dried, it can be grasped by hand. There is no stickiness.

  When the packaging sheet (1) is folded into a U shape as shown in FIGS. 16 and 17, the packaging sheet (1) shown in FIG. 4 and FIG. It is particularly preferable to use a film (3) having a tearable portion (32) formed with two heat welded portions (36). The reason is that the inner film (3) shown in FIGS. 4 and 10 has a quadruple structure in which the film pieces (31) (31) and the folded ends (31a) (31a) are overlapped. With this thickness, if it is a single heat-welded part (36), the inner film (3) on the side of the fold (35) that is not welded will be bent inward when folded into a U-shape. This is because the heat welding part (36) may be divided.

  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 rice block (6) can be not only a rod shape and a triangle shape, but also a flat round shape, a bowl shape, a rectangular parallelepiped shape, and the like.

  Further, the tearable portion (32) of the inner film (3) is not limited to the above configuration as long as the effect of the present invention is exhibited.

  Further, the severable portion (21) of the outer film (2) is not limited to the above embodiment, and for example, the cut tapes (22) can be formed in two rows. In this case, the tearable portion (32) of the inner film (3) may be formed between the cut tapes (22) and (22) formed in two rows, preferably in the center.

(10) Packaging sheet
(2) Outer film
(21) Dividable part
(3) Inner film
(32) Parts where tearing is possible
(36) Thermal weld
(4) Sheet food
(6) Rice chunk

Claims (6)

In the unfolded state, the sheet-like food (4) is sandwiched between the rectangular outer film (2) and the inner film (3) arranged on the back side of the outer film (2), and the outer film (2) The inner film (3) is a packaging sheet integrated by welding the outer periphery of the sheet-like food (4),
The outer film (2) has a severable part (21),
The inner film (3) has a tearable portion (32) continuously provided over the entire length in parallel with the separable portion (21), and the tearable portion (32) is watertight. Is broken by pulling in a direction substantially perpendicular to the tearable portion (32),
A packaging sheet characterized by that.   In the inner film (3), the inner edges of the film pieces (31) and (31) are folded back to the separable portion (21) along the separable portion (21) of the outer film (2). A tearable portion (32) formed by inserting the end portion (31a) between the other film piece (31) and the end portion (31a), and the tearable portion (32) is overlapped. The packaging sheet according to claim 1, wherein the film pieces (31) and (31) and the end portions (31a) and (31a) are formed by continuously heat-welding along the end portions (31a).   The said heat welding is a packaging sheet of Claim 2 given 1 or 2 items | stripes.   The inner film (3) is formed by overlapping the inner edges of the film pieces (31) (31) along the separable portion (21) of the outer film (2), and the tearable portion (32 The package according to claim 1, wherein the film pieces (31) (31) are formed by continuously heat-welding the overlapped inner edges along the severable portion (21) over the entire length. Sheet.   The said inner film (3) is comprised from one sheet, The said tearable part (32) is formed thinly so that it can break along the said tearable part (21). The packaging sheet according to 1.   A packaged rice cake obtained by packaging the rice cake (6) with the packaging sheet according to any one of claims 1 to 5,

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