Multi-packaging bags

Abstract

To provide a string of packaging bags having a suspension strength for exhibition in a suspension state without spoiling tear ability.SOLUTION: A string of packaging bags comprises a demarcating sealed portion 110 that is formed in a manner extending vertically and demarcates between pouches adjoining in a left-right direction. In the demarcating sealed portion 110, a perforated line 115 for separation provided alternately with cut and uncut portions 116, 117, is formed so as to be cut from an upper end edge of a peripheral-edge sealed portion 105 and extend along the demarcating sealed portion 110. Moreover, in a position closer to an upper end on the for-separation perforated line 115, a suspension hole 118 is formed so that an opening edge 118a of the suspension hole 118 is positioned with vertical spacing with respect to a lower end of a cut portion 116a adjacent to the upper portion of the suspension hole 118.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a multiple-piece packaging bag having a structure in which a plurality of pouches are connected to each other in a detachable manner in the left-right direction. [Background technology]

[0002] Currently, in pouch packaging in which a pouch formed into a bag shape by heat-bonding a film to form a peripheral seal is used as a packaging container, a packaging form is known in which a multiple packaging bag (multiple pouches) is formed in which a plurality of pouches are continuously connected and packed into a cosmetic box, etc. (See, for example, Patent Document 1.) The multiple packaging bag is configured so that it can be separated into individual pouches by, for example, providing a separation perforation line between adjacent pouches.

[0003] On the other hand, a hanging hole is formed in the upper part of the pouch in the thickness direction, and the pouch is hung by passing a hanging hook through the hanging hole for display and exhibition. In such a pouch, due to the structure in which the hanging hole is drilled, it is necessary to have sufficient hanging strength to prevent the pouch from being torn at the hanging hole and breaking. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2004-250041 A Summary of the Invention [Problem to be solved by the invention]

[0005] Therefore, in the case of a multiple-connected packaging bag, if the multiple-connected packaging bag has a structure in which multiple pouches are connected in the vertical direction, the multiple-connected packaging bag can be hung and displayed or exhibited by forming a seal portion for forming a hanging hole at the upper end of the uppermost pouch as necessary. However, in the case of a structure in which a plurality of pouches are connected in the left-right direction, since a separation perforation line is formed between adjacent pouches, it is difficult to form a hanging hole between the pouches. In particular, in the case of a structure in which, for example, two pouches of the same size are connected in the left-right direction, it is desirable to form the hanging hole in the center in the left-right direction, taking into consideration the alignment and appearance of the product display, but it is necessary to form the hanging hole in a position displaced from the center in the horizontal direction, which may impair the alignment and appearance of the product display. Due to these circumstances, multiple packaging bags in which a plurality of pouches are connected in the left-right direction have generally been distributed and sold in a state in which they are housed in a presentation box.

[0006] The present invention has been made in light of the above circumstances, and an object of the present invention is to provide a multi-piece packaging bag having a hanging strength that allows it to be displayed in a hanging state without impairing its tearability. [Means for solving the problem]

[0007] The multiple packing bag of the present invention is a multiple packing bag having a partition seal portion formed to extend in the vertical direction and partitioning adjacent pouches in the left-right direction from each other, wherein a separation perforation line is formed in the partition seal portion, with cut portions and non-cut portions being alternately provided, and a hanging hole is formed at a position on the upper end side of the separation perforation line, the separation perforation line is formed so as to be cut from the upper end edge of the peripheral seal portion of the multiple packing bag and extend along the partition seal portion, and the hanging hole is formed so that the opening edge of the hanging hole is positioned vertically spaced from the lower end of the cut portion adjacent above the hanging hole. The separation perforation lines are formed such that the interval between the cut portions in the upper end region where the hanging hole is provided is larger than the interval between the cut portions in other regions. By adopting this configuration, the above problem is solved. Effect of the Invention

[0008] According to the invention of claim 1, the hanging hole is configured so that the opening edge of the hanging hole is positioned at a distance in the vertical direction from the lower end of the cut part adjacent to the upper side of the hanging hole, and a support non-cut part is formed between the hanging hole and the cut part adjacent to the upper side of the hanging hole on the separation perforation line, so that the multiple package bag can be configured to be hangable from a hanging hook. Moreover, since the support non-cut part is a part that is pinched by fingers, for example, when separating into individual pouches, the provision of the support non-cut part can avoid a decrease in tearability due to the configuration in which the separation perforation line is cut from the upper end.

[0009] According to the invention of claim 2, the hanging hole is configured to be continuous with the cut portion adjacent to the hanging hole below the hanging hole on the separation perforation line, or to be formed with a small gap therebetween, so that a tearing starting point similar to that of the peripheral seal portion is formed at the opening edge of the hanging hole, making it easy to separate the area below the hanging hole.

[0010] According to the present invention, By configuring the separation perforation lines so that the distance between the cut portions in the upper end area where the hanging holes are provided is larger than the distance between the cut portions in other areas, the hanging holes can be reliably formed in appropriate positions so that the supporting non-cut portions are formed, thereby reliably ensuring both the hanging strength required for hanging and displaying and maintaining tearability.

[0011] Claim 3 According to the invention, the multi-piece packaging bag is made of a laminated film having a structure in which a polypropylene layer, an aluminum layer, a nylon layer, and a polyethylene terephthalate layer are laminated in sequence, so that the multi-piece packaging bag can be easily separated or has good openability along the separation perforation line or a notch formed at the intended opening position, while the supporting non-cut portion can be configured to have the desired hanging strength. Claim 4According to the invention, the vertical distance between the lower end of the cutting portion adjacent to the upper side of the hanging hole and the opening edge of the hanging hole is 1 to 20 mm, thereby making it possible to more reliably ensure both the hanging strength required for hanging and displaying the multi-piece packaging bag and maintaining its tearability.

[0012] Claim 5 According to the invention, the area in the partition seal portion where the hanging hole is provided is configured to be wider than other areas, and by separating the pouches along the separation perforation line, the sealing property of the side seal portion of each pouch formed by the partition seal portion can be ensured, thereby making it possible to form hanging holes of the desired shape and size.

[0013] Claim 6 According to the present invention, even if the multiple-piece packaging bag is accidentally dropped from its bottom end, the bag can be prevented from breaking from the bottom end side due to the separation perforation line. [Brief description of the drawings]

[0014] [Figure 1] 1 is a plan view showing an example of a configuration of a multiple packing bag according to a first embodiment of the present invention. FIG. [Diagram 2] 2 is a schematic diagram illustrating an area surrounded by a circular dashed line in FIG. 1 for explaining the configuration of a separation perforation line. FIG. [Diagram 3] FIG. 2 is an enlarged view showing the area surrounded by the circular dashed line in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] The multiple-packaging bag (multi-packaged pouch) of the present invention has a partition seal portion that is formed to extend in the vertical direction and separates adjacent pouches in the horizontal direction from each other, and the partition seal portion is formed with a separation perforation line that is composed of alternating cut portions and non-cut portions, and a hanging hole is formed at a position on the upper end side of the separation perforation line, the separation perforation line is formed so as to be cut from the upper end edge of the peripheral seal portion of the multiple-packaging bag and extend along the partition seal portion, and the hanging hole is formed so that the opening edge of the hanging hole is positioned with a gap in the vertical direction from the lower end of the cut portion adjacent above the hanging hole, so that the specific configuration may be any one. The multiple packaging bag of the present invention will be described below with reference to the drawings, taking as a specific example a multiple packaging bag having two pouches connected in the left-right direction (hereinafter referred to as a "twin pouch").

[0016] As shown in FIG. 1, the twin pouch 100 according to the first embodiment of the present invention is formed into a bag shape by folding a single film material in half and heat-sealing the remaining three sides other than the folded side to form a peripheral seal portion 105, and by forming a partition seal portion 110 extending in the vertical direction at the center in the horizontal direction, the sealed area surrounded by the peripheral seal portion 105 is partitioned into two storage portions 102, 102, resulting in a structure in which two independent pouches 101a, 101b of the same size are connected in the horizontal direction. A portion of peripheral seal portion 105 constituting one side seal portion 107a of each pouch 101a, 101b is formed wider at a predetermined range on the upper end side. In this wider portion, the intended opening positions of each pouch 101a, 101b are set, and notches 108 are provided by cutting the outer edge of peripheral seal portion 105 at the intended opening positions.

[0017] The compartment seal portion 110 is formed so as to be continuous with the top seal portion 106 of the peripheral seal portion 105 and extend to the lower end. The partition seal portion 110 is formed so that, when the twin pouch 100 is separated into the individual pouches 101a, 101b, the other side seal portion 107b has a shape symmetrical to one side seal portion 107a provided with the notch 108. Specifically, as also shown in Fig. 2, the partition seal portion 110 has a band-shaped wide portion 111 formed in the upper end region, a connecting portion 112 that is continuous with the lower end of the wide portion 111 and has a tapered inner edge that contacts the storage portion so that the width dimension decreases toward the bottom, and a band-shaped narrow portion 113 that is continuous with the lower end of the connecting portion 112. Since the upper end area of ​​the partition seal portion 110 is formed wide, the sealing property of the other side seal portion 107b of each pouch 101a, 101b formed by the partition seal portion 110 can be ensured by separating it along the separation perforation line 115, thereby making it possible to reliably form a hanging hole 118 of the desired shape and size.

[0018] The partition seal portion 110 is formed with a separation perforation line 115 in which cut portions 116 and non-cut portions 117 are alternately provided. A tear-away perforation line 115 is cut from the upper edge of top seal 106 and extends along compartment seal 110 to allow pouches 101a, 101b to be easily separated. The tear-off perforation line 115 does not reach the bottom edge of the twin pouch 100, so that even if the twin pouch 100 is accidentally dropped from its bottom side, it is possible to prevent the bag from being torn from the bottom side by the tear-off perforation line 115. Here, the length of the non-cut portion 117 between the bottom end of the cut portion 116 located at the bottom and the bottom edge of the twin pouch 100 is, for example, 1 to 5 mm.

[0019] The tear-off perforation line 115 is formed so that the interval p1 (length of non-cut portion 117) between the cut portions 116 in the region on the upper end side where the hanging hole 118 is provided is larger than the interval p2 (length of non-cut portion 117) between the cut portions 116 in other regions. This allows the hanging hole 118 to be reliably formed in an appropriate position so that a supporting non-cut portion is formed between the cut portion 116 of the tear-off perforation line 115 and the hanging hole 118 (the formation position is shown by a dashed line in FIG. 2), making it possible to reliably ensure both the securing of the hanging strength required for hanging and displaying and maintaining tearability. Here, the length of the cut portion 116 at the tear-off perforation line 115 is of a fixed size.

[0020] In this twin pouch 100, a hanging hole 118 is formed in the partition seal portion 110 at a position on the top seal portion 106 side. In this embodiment, the hanging hole 118 is configured as a through hole with a circular opening shape, but the opening shape of the hanging hole 118 may be any shape, such as a circle, an ellipse, a triangle, a rectangle, a heart shape, etc., as long as it is configured so that the twin pouch 100 can be hung by passing it through a hanging hook.

[0021] As shown in FIG. 3, the opening edge 118a of the hanging hole 118 is positioned on the separation perforation line 115 with a gap in the vertical direction from the lower end of the cut portion (hereinafter referred to as the "upper adjacent cut portion") 116a adjacent to the upper side of the hanging hole 118, and a support non-cut portion 117a is formed between the hanging hole 118 and the upper adjacent cut portion 116a. In this way, by forming the hanging hole 118 so that the supporting non-cut portion 117a is formed, the twin pouch 100 can be hung on a hanging hook. Moreover, since the supporting non-cut portion 117a is a portion that is pinched by fingers, for example, when separating the individual pouches 101a and 101b, the provision of the supporting non-cut portion 117a can prevent a decrease in tearability due to the configuration in which the separation perforation line 115 is cut from the upper end of the top seal portion 106. Furthermore, by forming the hanging hole 118 on the separation perforation line 115 located in the center in the left-right direction, it can be prevented that the alignment and appearance of the product display are impaired when the product is hung through a hanging hook. In this embodiment, the upper adjacent cut portion 116 a is formed by the uppermost cut portion 116 cut from the upper end of the top seal portion 106 at the tear-off perforation line 115 .

[0022] In this embodiment, the hanging hole 118 is continuous with the cut portion (hereinafter referred to as the "lower adjacent cut portion") 116b adjacent to the lower part of the hanging hole 118 at the separation perforation line 115, and a tear starting point similar to that of the top seal portion 106 is formed at the opening edge 118a of the hanging hole 118, so that the pouches 101a, 101b can be easily separated in the area below the hanging hole 118. The hanging hole 118 may be positioned with a small gap between it and the lower adjacent cut portion 116b on the separation perforation line 115. This small gap is preferably 0.1 to 0.5 mm.

[0023] The film material constituting the twin pouch 100 is a laminated film having a structure in which, from the inside, a polypropylene layer having a thickness of 50 to 100 μm, an aluminum layer having a thickness of 5 to 15 μm, a nylon layer having a thickness of 10 to 30 μm, and a polyethylene terephthalate layer having a thickness of 10 to 30 μm are laminated in this order, which are arranged to face each other when making a bag. With such a laminated film, the twin pouch 100 can be easily separated or has good openability at the separation perforation line 115 or the notch 108 formed at the intended opening position, while the desired hanging strength is obtained in the supporting non-cut portion 117a.

[0024] In the twin pouch 100 made of such a laminated film, the size of the distance d between the lower end of the upper adjacent cut portion 116a and the opening edge 118a of the hanging hole 118 is preferably 1 to 20 mm, and more preferably 2 to 6 mm. This makes it possible to more reliably ensure both the necessary hanging strength for hanging the twin pouch 100 for display and exhibition, and the maintenance of tearability.

[0025] Although one embodiment of the present invention has been described in detail above, the present invention is not limited to the above embodiment, and various design modifications can be made without departing from the present invention described in the claims. For example, in the multiple packaging bag of the present invention, the number of pouches consecutive in the left-right direction is not particularly limited and can be appropriately changed according to the purpose. When the number of pouches constituting the multiple packaging bag is large, the multiple packaging bag may be displayed and exhibited in a hanging state by appropriately folding the pouches along the separation perforation lines. Additionally, the individual pouches may be of the same size or may be of different sizes. Furthermore, the form of the pouch is not particularly limited, and may be a flat pouch, a standing pouch, or any other form. Furthermore, in the twin pouch 100 according to the first embodiment described above, one sheet of film material is folded in half and the remaining three sides other than the folded side are heat-sealed to form a bag shape, but two sheets of film material may also be overlapped and the four sides of the film material may be heat-sealed to form a bag shape. EXAMPLES

[0026] The present invention will be further described below with reference to examples, but the present invention is not limited to these specific examples.

[0027] <Example 1> Using a laminated film having a structure in which a 50 μm-thick polypropylene layer, a 7 μm-thick aluminum layer, a 15 μm-thick nylon layer, and a 12 μm-thick polyethylene terephthalate layer are laminated in this order, a test twin pouch A having two flat pouches connected in the left-right direction was produced with reference to the configuration shown in Figures 1 to 3. Each flat pouch has a left-right dimension of 67.5 mm and a top-bottom dimension of 160 mm. The width of the peripheral seal portion was 5 mm, the wide portion of the compartment seal portion was formed within a range of 25 mm from the upper edge, and the width of the narrow portion was 14 mm and 10 mm, respectively. The perforation line for separation had a cut length of 2 mm, a non-cut length (p1) in the upper end area where the hanging hole was provided was 2 mm, and a non-cut length (p2) in other areas was 1.5 mm. The hanging hole was a through hole with a diameter of φ7 mm, and was formed 9.5 mm from the upper end so that the vertical distance (d) between the lower end of the upper adjacent cut part and the opening edge of the hanging hole was 4 mm, and so that it was continuous with the lower adjacent cut part.

[0028] For the test twin pouch A, both sides of the tear-off perforation at the top were grasped with both hands, and one side was pulled toward the back side while the other side was pulled toward the front side, tearing the pouch along the tear-off perforation by hand into individual pouches. The tearability at this time was evaluated according to the following evaluation criteria. The results are shown in Table 1 below. <Evaluation criteria> "Good": When the packaging bag is cut along the perforation from the top edge, the cutting line does not deviate and reaches the hanging hole. "X": When cutting along the perforation from the top edge of the packaging bag, the cutting line deviates and does not reach the hanging hole.

[0029] In addition, a tensile test was performed on the test twin pouch A using a Tensilon universal testing machine at a tensile speed of 50 mm / min, and the strength at which the test twin pouch A broke was measured as the hanging strength. The results are shown in Table 1 below.

[0030] <Examples 2 to 5> Test twin pouches B to E were produced, each having the same configuration as test twin pouch A in Example 1, except that the length of the uncut portion of the separation perforation line and the position of the hanging hole were appropriately adjusted to change the vertical distance (d) between the lower end of the upper adjacent cut portion and the opening edge of the hanging hole in accordance with Table 1 below. For each of the test twin pouches B to E, the tearability and hanging strength were evaluated in the same manner as in Example 1. The results are shown in Table 1 below.

[0031] <Comparative Example 1 and Comparative Example 2> Comparative twin pouches A and B were produced, each having the same configuration as test twin pouch A in Example 1, except that the length of the uncut portion of the separation perforation line and the position of the hanging hole were appropriately adjusted to change the vertical distance (d) between the lower end of the upper adjacent cut portion and the opening edge of the hanging hole in accordance with Table 1 below. A tensile test was carried out and the hanging strength was evaluated for each of the comparative twin pouch A and the comparative twin pouch B in the same manner as in Example 1. The results are shown in Table 1 below.

[0032] [Table 1]

[0033] As shown by the above results, it was confirmed that by forming the hanging hole so that it is continuous with the lower adjacent cut portion and leaving a gap of 1 to 20 mm between the lower end of the upper adjacent cut portion and the lower end of the upper adjacent cut portion, it is possible to ensure the hanging strength required for hanging and displaying the twin pouch without significantly reducing the hanging strength compared to one that does not have a separation perforation line, while maintaining good tearability. [Explanation of symbols]

[0034] 100 ··· Twin pouch 101a ··· Pouch 101b ··· Pouch 102 ..... Storage section 105 Peripheral seal portion 106 Top seal part 107a One side seal part 107b Other side seal part 108 ··· Notch 110 Compartment seal part 111 ··· Wide section 112 Connection 113... Narrow part 115 ··· Perforation line for separation 116... Cutting section 116a: Upper adjacent cut 116b ... Downward separation section 117...uncut part 117a... Uncut part for support 118 Hanging hole 118a Opening edge

Claims

1. A multi-piece packaging bag having a partition seal portion that is formed to extend in the vertical direction and partitions adjacent pouches in the left-right direction from each other, A separation perforation line is formed in the partition seal portion, the separation perforation line being alternately provided with cut portions and non-cut portions, and a hanging hole is formed at a position on the upper end side of the separation perforation line; The separation perforation line is formed so as to be cut from the upper end edge of the outer peripheral seal portion of the multiple packaging bag and extend along the partition seal portion, The hanging hole is formed such that an opening edge of the hanging hole is positioned vertically spaced apart from a lower end of the cutting portion adjacent to the upper side of the hanging hole; The multiple-section packaging bag is characterized in that the separation perforation lines are formed so that the distance between the cut portions in the upper end region where the hanging holes are provided is larger than the distance between the cut portions in other regions.

2. 2. The multi-piece packaging bag according to claim 1, wherein the hanging hole is formed so as to be continuous with an upper end of the cut portion adjacent to the lower part of the hanging hole or so as to be spaced apart from the upper end of the cut portion by a small distance.

3. A multi-layer packaging bag as described in claim 1 or claim 2, characterized in that it is made of a laminated film having a structure in which a polypropylene layer, an aluminum layer and a polyethylene terephthalate layer are laminated in sequence.

4. A multi-piece packaging bag as described in claim 3, characterized in that the vertical distance between the lower end of the cut portion adjacent to the upper side of the hanging hole and the opening edge of the hanging hole is 1 to 20 mm.

5. A multi-section packaging bag as described in any one of claims 1 to 4, characterized in that the partition seal portion is formed so that the upper end area where the hanging hole is provided is wider than other areas.

6. A multi-piece packaging bag as described in any one of claims 1 to 5, characterized in that the separation perforation line does not reach the lower edge of the multi-piece packaging bag.

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