JP2010260611A - Packaging bag for triangular sandwich - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging bag for a triangular sandwich whose bag opening is quickly closed by an unexperienced person without deforming the sandwich and the sandwich packaged in which stands by itself stably to be displayed with its sealed face at the bottom. <P>SOLUTION: Two sheets of packaging films are formed into a roughly isosceles trapezoid bag with an opening on its bottom side for forming a triangular sandwich storage part. The first folding area is formed by extending the film on each opening side of the storage part. An end edge protrudes from the first folding area and the second folding area with a pasting part is formed on the inside face of the protruding end edge. When the films are folded roughly in a trapezoid shape with the first and the second folding areas facing each other in a condition where the sandwich is stored in the storage part, the second folding area is folded superimposing on the first folding area with the paste part partially exposed on the right and the left. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a packaging bag for a triangular sandwich, and relates to a configuration in which a folding margin for sealing the bag mouth is folded to the left and right outside along the side of the triangular sandwich at the final stage.

  A conventional general packaging mode of a triangular prism sandwich (referred to as “triangular sandwich” in the present application) cut so that the side view is a right triangle will be described. First, the packaging bag has two packaging films on the short side. After forming the bag into a substantially isosceles trapezoidal shape that seals the upper base and both sides of the bag, and using the lower base on the long side of the packaging bag as the bag mouth, The surplus film (folding margin) generated around was folded inward from four directions, and the bag mouth was sealed by tape-fastening the portion where the folding margin was folded with a label or a cellophane tape or the like from above ( For example, Patent Document 1).

  In another technique, on the premise of mechanical packaging by a packaging machine, a low melting point resin is coated or laminated in advance on the surface of the folding allowance, and the folded films are bonded by heating and pressing in the folding allowance folding process. There was also a technique to do this (Patent Document 2).

Japanese Utility Model Publication No. 6-35144 JP-A-7-206064

  According to the conventional general packaging mode represented by the above-mentioned Patent Document 1, the folding margin is folded inward from four directions to seal the bag mouth, so that the film is folded over and over at this sealing surface. In particular, the center of the surface where the number of overlapping sheets is maximum is raised. Usually, the packaged sandwich is displayed with the sealing surface as the bottom (installation surface). In this case, there is a problem that the packaged sandwich cannot be stably displayed due to the rise of the center of the sealing surface described above.

  In addition, when sandwich packaging is performed manually (hereinafter also referred to as “hand packaging”), according to the general packaging mode described above, the sandwich is easily deformed in the process of sealing the bag mouth, and considerable skill is required. Without it, it is not possible to obtain a homogenously packaged sandwich quickly. In other words, the packaging film used for this type of packaging bag is difficult to crease due to the nature of the material, and the process of folding the remaining folds sequentially while holding back the folding folds that have been folded first, Sometimes force comes in and the sandwich is easily deformed.

  In particular, the folding margin is preferably folded at right angles along the corners of the sandwich as much as possible, and such a beautifully finished packaged sandwich has a strong appeal to consumers, but unfamiliar people will not be able to determine the folds. In many cases, the corners of the sandwich are rolled into the folds and crushed, or conversely, the folds are folded at a shallow position to form an overwrapping package. Furthermore, it is clear from the inventor's experience that such a sealing operation is not careful and packaging takes time.

  On the other hand, since the technology disclosed in Patent Document 2 is mechanical packaging, it is possible to mass-produce a homogeneously packed sandwich. However, the packaging mode is also a four-fold folding in which the folding margin is folded inward from the four sides of the bag mouth. Therefore, similarly to the general packaging mode described above, there remains a problem that the packaged sandwich lacks independence. In addition, since the packaging technology of Patent Document 2 requires a large capital investment such as a packaging machine, it is difficult to introduce it into a bakery store or a private store that manufactures and sells about several tens of sandwiches per day. It is.

  The present invention has been made to solve the above-described problems, and the object of the present invention is to enable an unskilled person to quickly seal the bag mouth without deforming the sandwich, and to make the sealing surface the bottom. It is an object of the present invention to provide a packaging bag capable of stably supporting a packaged sandwich even when it is displayed.

  In order to achieve the above-described object, in the present invention, two packaging films are formed into a substantially isosceles trapezoidal shape having an opening on the lower bottom side to form a triangular sandwich accommodating part, and the opening of the accommodating part Each of the films is extended to the side to form a first folding margin, and an edge protrudes from the first folding margin, and a second adhesive portion is provided on the inner surface of the protruding edge. A folding margin is formed, and when the first and second folding margins are opposed to each other and folded into a substantially trapezoidal shape while the triangular sandwich is accommodated in the accommodating portion, the second folding margin is the glue portion. The left and right portions of the first fold are exposed and folded to the first folding margin. The triangular sandwich is put into the accommodating part, and the opening of the accommodating part is closed by folding the first and second folding margins in this order. At the time of this closing, the second folding margin is bonded to the first folding margin (the outer surface thereof) by the glue portion provided on the inner surface of the edge, but the left and right glue portions protruding from the first folding margin are exposed. Will do. The exposed glue part can be used to bond the left and right edges of the second folding margin directly to the side surface of the triangular sandwich or by winding the side surface to the inclined surface. That is, according to the present invention, both the first and second folding margins are folded inward so as to face each other in the first folding stage, and at this time, the ears formed on the left and right of each folding margin are conventionally, Furthermore, the place folded inward can be made into the packaging aspect folded back outside in the present invention.

  In addition, the first folding margin and the second folding margin are each provided with a mark indicating the folding position along the center line of the triangle sandwich to be accommodated, so that the second folding margin can be accurately set to the first folding margin. It can be folded over to teens.

  Furthermore, by providing a mark indicating the base position of the triangle sandwich to be accommodated around the opening of the accommodating portion, the proper accommodation depth of the triangle sandwich can be recognized, and the mark is a fold of the first and second folding allowances. It also demonstrates the function of indicating the position.

  In addition, when the adhesive portion is a low-adhesive pressure-sensitive adhesive that can be re-peeled, it can be resealed even after it has been peeled off and once opened. Furthermore, by covering the glue part with release paper, it is possible to prevent the glue part from being inadvertently dried before packaging, and to store and distribute the packaging bag in a state of being layered several times.

  According to the present invention, when the second folding allowance is folded on the first folding allowance, the glue portion can easily bond the two together to ensure the closed state of the bag mouth, and then the left and right are formed in this state. Therefore, when the sealed sandwich is displayed, high self-supporting property can be obtained. In addition, by simply pulling the first and second folding margins back and forth and turning them back outwards, even unskilled people can quickly and beautifully wrap the folding margin in close contact with the triangular sandwich by the film tension. To do. At this time, since the opening of the folding allowance is suppressed by the glue portion, no extra force is applied to the folding allowance folding, and therefore the triangular sandwich can be packaged without being deformed.

  In addition, when folding the second folding allowance into the first folding allowance, if the marks of both are matched, an appropriate folded state is naturally realized, and further provided around the opening of the accommodating portion. The mark indicating the bottom position of the triangular sandwich is used as a guideline for folding the triangular sandwich to the outside and the first and second folding margins. You can wrap the bills outward and wrap the triangle sandwich beautifully.

  Furthermore, when the adhesive part is a low-adhesive pressure-sensitive adhesive that can be re-peeled, the second folding allowance can be used as an opening knob to provide a re-sealable packaging bag. Moreover, in the case where the glue part is coated with release paper, careless adhesion is prevented before packaging while protecting the glue part, and a packaging bag excellent in handling can be obtained.

The top view of the packaging bag which concerns on one Embodiment of this invention Perspective view of sandwich sandwiched with this packaging bag Process diagram showing the procedure for packaging triangular sandwiches with this packaging bag Bottom view of a triangular sandwich showing the second folding margin folded into the first folding margin A perspective view showing a work table used for packaging work

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a plan view of a packaging bag according to an embodiment of the present invention, in which two front and back packaging films 1 and 2 are attached to a short side upper base 3 and both sides 4 and 5. While the sides are sealed, the bag is formed into a substantially isosceles trapezoidal shape in which only the lower base 6 on the long side is opened to form a triangular sandwich accommodating portion 7, and the film 1. 2 is extended to form a trapezoidal first folding allowance 8 and a second folding allowance 9 from which the end edge 9a protrudes from the first folding allowance 8. A glue part 10 is provided along the edge 9 a on the inner surface of the portion of the second folding margin 9 that protrudes from the first folding margin 8, and the glue part 10 is covered with a release paper 11. Yes. In this embodiment, the film 1 positioned on the slope side of the triangular sandwich is extended to form the first folding margin 8, and the film 2 positioned on the vertical plane side of the triangular sandwich is extended to the second A folding margin 9 is formed. This is to secure a sufficient folding width for folding the first folding allowance 8 without causing the second folding allowance 9 to protrude extremely from the first folding allowance 8.

  FIG. 2 is a completed perspective view of the packaged sandwich in which the triangular sandwich S is packaged by the packaging bag, and finally the first and second folding margins 8 and 9 are folded in this order according to the procedure described later. The first and second folding margins 8 and 9 are bonded to the slope S2 by winding the side surface S1 of the triangular sandwich S at the left and right ends.

  That is, the procedure for packaging the triangular sandwich S by the packaging bag will be described with reference to FIG. 3. First, in the first step (FIG. 3A), the triangular sandwich S is placed in the housing portion 7 so that the bottom S 3 is on the bag mouth side. In the accommodated state, the first folding margin 8 is folded inward toward the bottom surface S3. At this time, the first folding margin 8 is formed on the left and right sides of the bottom surface S3 of the triangular sandwich S with substantially triangular ears 8a. The bag mouth is folded into a substantially trapezoidal shape protruding so as to close the bag mouth partway.

  In this embodiment, since the mark 12 indicating the bottom position of the triangular sandwich S is formed in advance around the bag mouth of the accommodating portion 7, the triangular sandwich S can be easily accommodated. The mark 12 also serves as a guide for folding when the first and second folding margins 8 and 9 are folded inward and then folded outward. It is simplest to form this mark 12 with four points corresponding to the four corners of the bottom surface of the triangular sandwich S as in this embodiment, but two parallel lines connecting the left and right upper and lower points, or four It may be a rectangular outline indicating the shape of the bottom surface S of the triangular sandwich by connecting two points.

  Next, in the second step (FIG. 3B), the release paper 11 is peeled off from the second folding margin 9 to expose the glue portion 10, and the second folding margin 9 is turned inward from the opposite side. Fold it up and fold it up to the first folding allowance 8. At this time, as shown in FIG. 4, the second folding margin 9 is folded into a substantially inverted trapezoidal shape in which substantially triangular ears 9a and 9b are projected on both left and right sides of the bottom surface S3 of the triangular sandwich S. The left and right edges of the second folding allowance 9 protrude from the first folding allowance 8. Accordingly, the glue portion 10 has an overlapping portion 10a (see the hatched portion in FIG. 4) that adheres to the first folding allowance 8, and exposed portions 10b and 10c that protrude from the first folding allowance 8 to the left and right (see the hatching in FIG. 4). A grid portion). However, if the second fold margin 9 is folded to the first fold margin 8 with the center shifted, the exposed portions 10b and 10c may be biased or the glue portion 10 may not be exposed at all. In the embodiment, the first and second folding margins 8 and 9 are respectively provided with marks 12 and 13 indicating the folding positions along the center line of the triangular sandwich S. Accordingly, when the second folding allowance 9 is folded over the first folding allowance 8, if the marks 12 and 13 of both coincide with each other, proper exposed portions 10b and 10c are naturally formed. In this second step, the first and second folding allowances 8 and 9 are picked by holding both ears 8a and 8b and 9a and 9b of the first and second folding allowances 8 and 9 with both hands and pulling them to the left and right outside. Can be bonded in a state where the folding margins 8 and 9 are in close contact with the bottom surface of the triangular sandwich S.

  Subsequently, in the third step (FIG. 3C), the two ears 9a and 9b of the second folding margin 9 are folded back so as to rise along both side surfaces S1 of the triangular sandwich S, and further the final step (FIG. 3). In (d)), the end edges of both ears 9a and 9b are bonded in a state where they are wound around the inclined surface S2 of the triangular sandwich S using the exposed portions 10b and 10c of the glue portion 10, so that the packaged sandwich shown in FIG. Is completed. In this third and final process, the triangle sandwich S is raised and the bottom surface S3 is installed, and the work is continued, but the work can be continued with the vertical surfaces of the first and second processes installed. Is possible. Further, both ears 9a and 9b of the second folding allowance 9 can be bonded to the side surface S1 of the triangular sandwich S when the folding width is smaller than that of the present embodiment.

  According to the packaging bag of the present embodiment described above, both ears of the first and second folding allowances 8 and 9 are bonded in a state of being finally folded back, so that the bag mouth (the bottom surface of the triangular sandwich S) In the case where the number of overlapping films is smaller than that of the conventional film, and when the film is displayed on the bottom, it is possible to obtain a packaged sandwich having high self-supporting property. In addition, since the work of folding the both ears of the first and second folding margins 8 and 9 outward can be performed while pulling the both ears outward, it is quicker than folding inward as in the prior art, and It can be done beautifully. Furthermore, when the glue part 10 is a re-peelable low-adhesive pressure-sensitive adhesive, the bag mouth is opened by a procedure reverse to that shown in FIG. 3, and then re-sealable according to the procedure shown in FIG.

  As shown in FIG. 5, the series of packaging operations described above are preferably performed using a work table P provided with a non-slip material P1 such as a silicon sheet on the surface. More preferably.

1.2 Packaging film 7 Housing portion 8 First folding allowance 9 Second folding allowance 10 Paste portion S Triangular sandwich

Claims (5)

The two packaging films are formed into a substantially isosceles trapezoidal shape with an opening on the lower bottom side to form a triangular sandwich accommodating portion, and each of the films is extended to the opening side of the accommodating portion. Further, an end edge protrudes from the first fold allowance, and a second fold allowance is provided in which an adhesive inner surface is provided on the protruding end edge inner surface. When the first and second folding margins are folded in a substantially trapezoidal shape while accommodating the triangular sandwich, the second folding margin exposes the left and right parts of the glue portion and Triangular sandwich packaging bag characterized by folding at the folding margin. 2. The triangular sandwich packaging bag according to claim 1, wherein the first folding margin and the second folding margin are each provided with a mark indicating a folding position along a center line of the accommodated triangular sandwich. 3. The triangular sandwich packaging bag according to claim 1 or 2, wherein a mark indicating the bottom position of the triangular sandwich to be accommodated is provided around the opening of the accommodating portion. 4. The triangular sandwich packaging bag according to claim 1, 2 or 3, wherein the glue part is a re-peelable low-tack adhesive. The triangular sandwich packaging bag according to any one of claims 1 to 4, wherein the glue portion is covered with release paper.

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