JP2004142765A - Food packaging bag - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a food packaging bag which can be accurately opened so that a packaged sandwich can be properly taken out, is excellent in productivity, and prevents the packaged sandwich from deforming. <P>SOLUTION: The food packaging bag consists of overlapped trapezoidal front 10 and rear 20 films with their side rims 11 and 21 sealed, while a narrow end is sealed by a seal 1 and the other wide end can be opened wide by an opening 2, and a portion of the rear film 20 to be torn off from the side of the seal 1 toward the opening 2 serves as a tear-open part 25. A pair of guide sheets 4 and 4 for regulating the width of the tear-open part 25 are provided on both sides of the part 25 of the rear film 20 across lines 26 and 26 to be folded of respective side rims of the rear film 20 to reinforce the film 20. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a food packaging bag for packaging a food such as a sandwich or a castella (hereinafter, referred to as a “sandwich”). More specifically, the packaging can be properly opened, and the packaged sandwich can be properly taken out. The present invention relates to a food packaging bag in which even if an external force is applied to the side surface of a packaging bag (a product obtained by packaging a sandwich in a packaging bag), the contents of the sandwich are not easily deformed.
[0002]
[Prior art]
The right triangle sandwich is sold, for example, in a food packaging bag as shown in FIGS. 6 to 8. In this food packaging bag, both side edges 111 and 121 of a trapezoidal front film 110 and a back film 120 that are superimposed as shown in FIG. The “upper” side is sealed by a band-shaped seal portion 101, and the other wide end (hereinafter, “lower”) side can be opened by an opening 102. The front film 110 is formed to be slightly shorter than the back film 120 as shown by a dotted line in FIG. 6, or the back film 120 is formed to be slightly shorter than the front film 110 so that the opening 102 can be easily opened. Have been.
[0003]
Further, the upper side from the seal portion 101 is formed as protruding pieces 112 and 122 in which the front film 110 and the back film 120 are overlapped, and the periphery of the protruding pieces 112 and 122 is extremely finely sealed by heat. The upper edges of the protruding pieces 112 and 122 may be formed in a shape having a good design such as an arc shape or a wave shape.
[0004]
Further, an inverted U-shaped cut line 123 is formed in the projecting piece 122 of the back film 120, and a tongue-shaped knob 124 is formed inside the cut line 123. Since the front film 110 and the back film 120 are merely overlapped, the knob 124 can be picked up. On the inner surface of the back film 120, a thin strip-shaped cutting means (hereinafter, referred to as "cut tape") for tearing the back film 120 from the knob 124 to the vicinity of the opening 102 across the seal portion 101. 103 is pasted.
[0005]
In such a food packaging bag, the front film 110 and the back film 120 are bent at a right angle from the state in which the front film 110 and the back film 120 are overlapped as shown in FIG. Is formed, and the opening 102 is opened in a rectangular shape, thereby forming a bag-shaped space 104 having a substantially triangular side surface. The sandwich S is accommodated in the space 104, and the front film 110 and the back film 120 on the side of the opening 102 are folded into a bottom 105 as shown in FIG. 8, and the bottom 105 is made of an adhesive tape (not shown). Then, the sandwich S is packaged.
[0006]
Then, in order to eat the wrapped sandwich S, the cutting tape 124 provided on the protruding piece 122 of the back film 120 is picked up and pulled straight down, so that the cut tape 103 is sealed as shown in FIG. By cutting the back film 120 of 101 and pulling it straight down, the back film 120 is torn downward. When the back film 120 is torn to the bottom 105, the food packaging bag is opened, and the sandwich S can be taken out from the torn back film 120 side.
[0007]
In such a food packaging bag, the thinner the cut tape 103 is, the easier it is to tear the back film 120. Therefore, generally, a thinner cut tape 103 is attached to the back film 120. However, since the width of the sandwich S is large, it is difficult to take out the sandwich S only by the back film 120 being torn thinly. In order to take out the sandwich S, the interval between the torn back film 120 must be widened. Is troublesome.
[0008]
Therefore, an opening film piece for tearing the back film over a wide width, and a pair of band-shaped protection tapes arranged on both sides of the opening film piece are respectively attached to the back film. A food packaging bag is disclosed in Japanese Utility Model Registration No. 3084968.
[0009]
[Patent Document 1]
Japanese Utility Model Registration No. 3084968 (FIG. 8)
[0010]
[Problems to be solved by the invention]
In the food packaging bag disclosed in Japanese Utility Model Registration No. 3084968, an opening shooting piece is provided at the upper end of a wide opening film piece attached to a back film. By pulling the opening strip downward, the back film is torn at the width of the opening film strip. And a pair of belt-like protective tapes stuck to the backing film on both sides of the opening film piece, the backing film is not unnecessarily torn wider than the width of the protective tape, and the sandwich spills carelessly Not to be.
[0011]
By the way, any conventional food packaging bag, including the food packaging bag disclosed in the Utility Model Registration No. 3084968, was packaged by applying unnecessary external force to the side surface of the packaging bag upon opening. The sandwich may be deformed as if crushed. This is because there is no idea that any conventional packaging bag for food is reinforced to maintain the regularity of the packaging bag.
[0012]
Therefore, the present invention provides a food sandwich in which the opened sandwich can be properly taken out and the packed sandwich can be appropriately taken out, and even if external force is applied to the side surface, the packed sandwich is hardly deformed. An object of the present invention is to provide a packaging bag.
[0013]
[Means for Solving the Problems]
The food packaging bag according to the present invention, the side edges of the superimposed front film and the back film are sealed, one end is sealed by a seal portion, the other end is made openable by an opening, the front film, Alternatively, in a food packaging bag in which a portion of the back film that is torn from the sealing portion side to the opening portion side is a cleavage portion, affixed to both sides of the film provided with the cleavage portion to regulate the width of the cleavage portion. The pair of guide sheets is formed so as to straddle the folding line on the side edge side of the film.
[0014]
According to this food packaging bag, the film wrapping the sandwich is not torn toward the side edges because the pair of guide sheets is provided on both sides of the film, and is wrapped along the pair of guide sheets. It is torn only on the unloading surface of the bag. Further, the guide sheet is provided so as to straddle the folding line on the side edge side of the film, so that the guide sheet is overlapped with a corner formed when packing the sandwich, and the corner is reinforced, and the guide sheet is attached to the packaging bag. Is placed on the take-out surface and the side surface, so that even if an external force is applied to the take-out surface and the side surface, the packaged sandwich can be made hard to deform.
[0015]
Further, it is preferable that the guide sheet is formed to have a length from a seal portion on one end side to a folding line at the other end side of the film provided with the guide sheet. According to this food packaging bag, since the film is folded at the folding line at the other end, the guide sheet coincides with the height of the sandwich to be packaged, and the direction connecting the sealing portion at one end and the folding line is set. Even if external force is applied to the packaging bag, the contents of the sandwich can be made hard to deform.
[0016]
Further, it is preferable that an opening piece having a width substantially the same as the interval between the pair of guide sheets is adhered to an opening point where the film is torn. According to this food packaging bag, when the opening piece is attached to the opening start point and the opening piece is pulled toward the opening, the film is opened at the width of the opening piece. Since the width of the opening piece is the same as the interval between the pair of guide sheets, the film is torn at the interval between the pair of guide sheets and can be opened in a wide range.
[0017]
Preferably, the film is provided with a cutting means for tearing the film from the opening point toward the opening. According to the packaging bag for food, even when the film is torn between the guide sheets, the film can be reliably torn to the end with a minimum width of the cutting means.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
One embodiment of a food packaging bag according to the present invention will be described with reference to FIGS.
[0019]
As in the conventional case, the packaging bag for food according to the present embodiment also has the side edges 11 and 21 of the superposed trapezoidal front film 10 and the back film 20 which are extremely finely sealed by heat and have one end with a small width (hereinafter, referred to as “ The upper side) is sealed by a band-shaped seal portion 1, and the other end (hereinafter, referred to as “lower side”) can be opened by an opening 2. The front film 10 is formed to be slightly shorter than the back film 20 as shown by a dotted line in FIGS. 1 and 2 so that the opening 2 is easily opened, or the back film 20 is slightly shorter than the front film 10. It is formed short.
[0020]
Further, the upper side from the seal portion 1 is formed as protruding pieces 12, 22 in which the front film 10 and the back film 20 are superimposed, and the periphery of the protruding pieces 12, 22 is extremely finely sealed by heat. The protruding pieces 12, 22 are printed with a trademark or the like, and the protruding pieces 12, 22 are picked up so that the present packaging bag can be taken out from the display shelf. Further, the upper edges of the projecting pieces 12 and 22 may be formed in a shape having a good design such as an arc shape or a wave shape.
[0021]
An inverted U-shaped cut line 23 is formed in the protruding piece 22 of the back film 20, and the inside of the cut line 23 is a tongue-shaped knob 24. Since the front film 10 and the back film 20 are merely overlapped, the knob 24 can be picked up.
[0022]
A band-shaped cutting means (hereinafter referred to as “cut tape”) 3 for tearing the back film 20 is attached to the inner surface of the back film 20. The cut tape 3 is attached from the tab 24 to the vicinity of the opening 2 across the seal 1 so as to be orthogonal to the center of the seal 1.
[0023]
A portion of the back film 20 that is wider than the cut tape 3 and is torn from the sealing portion 1 toward the opening 2 is defined as a cleavage portion 25. The cleavage portion 25 has a width that allows easy removal of the sandwich S (see FIG. 7) to be packaged, for example, a width that is at least 20% or more, preferably 50% or more of the length of the seal portion 1. The cut tape 3 from the seal portion 1 to the vicinity of the opening 2 may have the same wide width as the cleavage portion 25.
[0024]
In the packaging bag for food of the present embodiment, a pair of guide sheets 4 for regulating the width of the cleavage portion 25 are provided on both sides of the cleavage portion 25 of the back film 20, respectively. It is characterized in that it is provided so as to straddle the scheduled folding line 26 on the edge 21 side. Since the guide sheet 4 is provided so as to straddle the folding line 26 on the side edge side, the packaging bag for the present food is superimposed on the corner 27 (see FIG. 5) of the back film 20 in a state where the sandwich S is packaged. In addition to reinforcing the corners 27, the guide sheet 4 is provided between the take-out surface 20 a between the pair of planned folding lines 26, 26 on the side edge 21, 21 side and the one between the planned folding line 26 and the side edge 21. The back film 20 is laid on the side surface 20b to reinforce the back film 20, so that even if an external force is applied to the take-out surface 20a or the side surface 20b, the packaged sandwich S is hardly deformed.
[0025]
Further, the guide sheet 4 is formed to have a length from the seal portion 1 to the expected folding line 28 at the other end of the back film 20. Since the back film 20 is folded at the expected folding line 28 to package the sandwich S, the guide sheet 4 matches the height of the packaged sandwich S and is superimposed on the back film 20, so that the external force in the vertical direction is reduced. Even when added to the packaged sandwich S, the sandwich S is made to be difficult to deform.
[0026]
As such a guide sheet 4, the inner side edge 4a coincides with the line on both sides of the cleaved portion 25, and the outer side edge 4b is very finely sealed. The upper edge 4c coincides with the seal portion 1 and the lower edge 4d coincides with the expected folding line 28 of the back film 20, for example, in a trapezoidal shape. The trapezoidal guide sheets 4 and 4 are attached to the back film 20 on the entire circumference or the entire surface by heat, an adhesive, or the like.
[0027]
Such a guide sheet 4 is attached to the inner surface of the back film 20 as shown in FIG. 3 or the outer surface of the back film 20 as shown in FIG. When the guide sheet 4 is stuck on the inner surface of the back film 20 as shown in FIG. The three members 4b, 11 and 21 can be integrally sealed by heat. Further, when the guide sheet 4 is attached to the inner surface of the back film 20, there is an advantage that the appearance is not impaired by the guide sheet 4.
[0028]
On the other hand, when the guide sheet 4 is stuck on the outer surface of the back film 20 as shown in FIG. 4, the guide sheet 4 is prevented from turning up or off from the back film 20. The entire circumference is affixed to the outer surface of the backing film 20 in a strip shape or the entire surface. When the guide sheet 4 is stuck on the outer surface of the back film 20 in this manner, the back film 20 is cut between the guide sheet 4 and the cut tape 3 so that a shear force is applied and cut and torn. It has the advantage that it can be done.
[0029]
Further, in the packaging bag for food according to the present embodiment, as shown in FIGS. 1 and 2, the picking piece 24 provided on the protruding piece 22 is used as the opening starting point 5. It is stuck.
[0030]
The opening piece 6 is disposed on the inner surface side of the back sheet 20, between the seal portion 1 and the opening 2 of the back film 20, and a base end portion 6 a attached to a position close to the seal portion 1. And a tip portion 6b attached to a knob piece 24 provided on the protruding piece 22. The proximal end 6a of the opening piece 6 has the same width as the interval between the pair of guide sheets 4 and 4, and the proximal end 6a serves as a starting point for tearing the back film 20 at the interval between the pair of guide sheets 4 and 4. I have. On the other hand, the tip 6b of the opening piece 6 is not attached to the back film 20 around the knob 24 so that the knob 24 can be picked up. Such an opening piece 6 has, for example, an inverted Y-shape shown in FIG. 1 or an inverted V-shape shown in FIG. 2, and does not specify an inverted U-shape or an inverted T-shape.
[0031]
Further, an inner film 7 having substantially the same width as the sandwich S is adhered to the inner surface of the front film 10 as shown in FIGS. Even if the inner film 7 includes, for example, a viscous material obtained by mixing boiled eggs and mayonnaise as a material of the sandwich S, the viscous material adheres to the inner film 7 and the surface film 10 is not stained. Has been.
[0032]
Then, even in the food packaging bag of the present embodiment, the opening 2 is opened in a rectangular shape from the state where the front film 10 and the back film 20 are overlapped, so that the folding line 26 is formed at the corner. 27, a bag-shaped space (not shown) having a substantially triangular side surface is formed. At this time, the guide sheet 4 is put on the corner 27 of the back film 10.
[0033]
Then, the sandwich S is stored in the space, and the front film 10 and the back film 20 on the side of the opening 2 are folded to form a bottom 8, and the bottom 8 is sealed with an adhesive tape (not shown) or the like. The sandwich S is packaged. At this time, the lower edge 4d of the guide sheet 4 coincides with the bottom 8 of the sandwich S. Further, the guide sheet 4 is also superimposed on the take-out surface 20a and the side surface 20b of the packaging bag to reinforce the back film 20 from the front and side surfaces. The sandwich S is hardly deformed even when an external force is applied to the packaging bag because the sandwich S is superimposed on the film 20.
[0034]
Then, in order to eat the packaged sandwich S, the picking piece 24 and the tip 6b of the unsealing piece 6 are picked and pulled straight downward. At this time, even if the side surface of the packaging bag is grasped and an external force is applied to the sandwich S, the sandwich S is not easily deformed due to the effect of reinforcing the guide sheets 4.
[0035]
When the knob 24 and the opening piece 6 are further pulled straight down toward the bottom 8, the base end 6 a of the opening piece 6 tears both sides of the tearing portion 25 of the back film 20 as shown in FIG. 5. Since the pair of guide sheets 4 and 4 are adhered to the back film 20, the back film 20 is separated from the tearing portion 25 and is torn at a constant width without being torn toward the side edges 11 and 21. The Rukoto.
[0036]
In addition, the pulling state of the tab piece 24 and the opening piece 6 is not appropriate, and even if the back film 20 does not follow the inner side edge 4a of the guide sheet 4 and is torn in a tapered manner, the cut tape 3 As a result, the back film 20 is torn to the bottom 8 with the width of the cut tape 3 at a minimum. By opening the packaging bag in this way, the packaged sandwich S can be reliably taken out.
[0037]
It should be noted that the present invention is not limited to the above embodiments of the invention, but can be variously modified within the scope of the technical matters described in the claims. For example, the pair of guide sheets 4 and 4 may be provided on the front film 10.
[0038]
The upper and lower positional relationship described in the detailed description of the invention is, as a matter of course, a positional relationship in the case illustrated, and may be different from an actual upper and lower positional relationship.
[0039]
【The invention's effect】
According to the present invention, a pair of guide sheets for regulating the width of the tearing part to be torn from the seal part of the front film or the back film to the opening side is on both sides of the film to be torn, and to reinforce the film. By being provided so as to straddle the folding line on the side edge side of the film, the folding line is reinforced by being overlapped with the corner film formed when the sandwich is wrapped, and external force is applied to the wrapped sandwich. Can be made hard to deform even if added. Therefore, the open bag eliminates unsold products due to poor appearance in the stage before the sandwich is sold, and can enjoy the soft feeling of the sandwich in the stage of eating.
[0040]
In addition, since the member for realizing the function of regulating the cleavage width of the film and the member for realizing the reinforcing function are not separate, the production cost can be reduced by the guide sheet having both functions.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of a food packaging bag according to the present invention. FIG. 2 is a front view showing a modified example of the same. FIG. 3 is an embodiment of a food packaging bag according to the present invention. FIG. 4 is a cross-sectional plan view showing another modified example. FIG. 5 is a perspective view showing an embodiment of a food packaging bag according to the present invention. FIG. 6 is a conventional food packaging bag. FIG. 7 is a perspective view of a conventional food packaging bag. FIG. 8 is a perspective view of a sandwich packaged by a conventional food packaging bag.
DESCRIPTION OF SYMBOLS 1 ... Seal part 2 ... Opening part 3 ... Cutting means (cut tape)
4 Guide sheet 5 Opening start point 6 Opening piece 10 Front film 11 Side edge 20 Back film 21 Side edge 25 Cleaved portion 26 Expected folding line 28 (on the side edge side of film) (other than film) Expected line (end)

Claims (4)

Both edges of the superposed front film and the back film are sealed, one end is sealed by a seal portion, and the other end is made openable by an opening. In a food packaging bag in which a part to be torn is a cleavage part,
A pair of guide sheets adhered to both sides of the film provided with the cleavage portion to regulate the width of the cleavage portion, each of which is formed so as to straddle the folding line on the side edge side of the film. Food packaging bags. 2. The food sheet according to claim 1, wherein the guide sheet is formed to have a length from a seal portion on one end side to a folding line on the other end side of the film provided with the guide sheet. 3. Packaging bag. An opening piece having a width substantially the same as the interval between the pair of guide sheets is adhered to an opening point where the film is torn, the food being used according to claim 1 or 2. Packaging bag. The food packaging bag according to any one of claims 1 to 3, wherein the film is provided with cutting means for tearing the film from the opening point toward the opening. .

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