Pouch

Abstract

To provide a pouch equipped with an opening / closing type line fastener, which has a configuration that allows for a wider selection of the opening sizes.SOLUTION: The pouch 1 includes: a packaging bag 100 including a front surface sheet 111 and a rear surface sheet 112, having an opening 10 at an upper end, and capable of storing a content; and an opening / closing type line fastener 201. The packaging bag 100 includes a first side seal part 102 and a second side seal part 103 formed by sealing the ends of the front surface sheet 111 and the rear surface sheet 112 in a width direction to each other, the line fastener 201 connects the first side seal part 102 and the second side seal part 103, and is provided along the opening 10, and a point seal part 110 is provided extending upward from the line fastener 201 with a gap S1 of a predetermined distance therebetween.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a pouch. [Background technology]

[0002] Conventionally, pouches equipped with a snap-fitting fastener that allows the contents to be divided into multiple uses have been known. For example, Japanese Patent Laid-Open Publication No. 9-30538 (Patent Document 1) discloses a structure in which a welding point is provided in the middle region of the fastener, making it possible to change the size of the opening. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 9-30538 Summary of the Invention [Problem to be solved by the invention]

[0004] By adopting a structure that allows the size of the opening to be changed in the strip fastener, it is possible to select the appropriate opening size depending on the amount and size of the contents to be removed. However, if the welding point is provided in the middle area of ​​the strip fastener, only two openings on either side of the welding point can be used. In addition, since the welding point is provided in the strip fastener itself, a process of crushing the strip fastener is required, which complicates the pouch manufacturing process.

[0005] An object of the present invention is to provide a pouch having an openable / closable line fastener, which has a configuration that allows for more selection of the size of the opening. [Means for solving the problem]

[0006] A pouch according to the present disclosure comprises a packaging bag including a top sheet and a back sheet, an opening at the top end, capable of containing contents, and an open / close line fastener, the packaging bag including a first side seal portion and a second side seal portion formed by sealing together the ends of the top sheet and the back sheet in the width direction.

[0007] The line fastener connects the first side seal portion and the second side seal portion, and has a point seal portion that is arranged along the opening and extends upward with a predetermined gap from the line fastener.

[0008] In another form, the pouch further has an upper seal portion formed by sealing the upper part of the top sheet and the upper part of the back sheet together, and a lateral cross cutting auxiliary line is provided on at least one of the first side seal portion and the second side seal portion at a position corresponding to the upper part of the lower end of the point seal portion.

[0009] In another embodiment of the pouch, a longitudinal cutting assist line extending longitudinally is provided within the point seal portion.

[0010] In another embodiment of the pouch, a gap lateral cutting assist line is provided in at least one of the first side seal portion and the second side seal portion at a position corresponding to the position where the gap is provided. [Effects of the Invention]

[0011] This disclosure makes it possible to provide a pouch with an openable / closable line fastener that has a configuration that allows for more flexible selection of the size of the opening. Furthermore, a structure that allows for the size of the opening to be changed in the line fastener can be adopted using a simple manufacturing method. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 1 is a front view of a pouch according to a first embodiment. [Figure 2]FIG. 10 is a partially enlarged front view of the pouch of the second embodiment. [Figure 3] FIG. 11 is a partially enlarged front view of the pouch of the third embodiment. [Figure 4] FIG. 10 is a front view of a pouch according to a fourth embodiment. [Figure 5] FIG. 10 is a front view of a pouch according to a fifth embodiment. [Figure 6] FIG. 13 is a front view of another form of the pouch of the fifth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0013] Pouches according to various embodiments of the present invention will be described below with reference to the drawings. In the embodiments described below, when numbers, amounts, etc. are mentioned, the scope of the present invention is not necessarily limited to those numbers, amounts, etc., unless otherwise specified. The same reference numerals are used for the same or equivalent parts, and redundant descriptions may not be repeated. It is intended from the beginning that the configurations in the embodiments may be used in appropriate combinations.

[0014] In the following explanation using the drawings, the areas indicated in light ink in the drawings indicate the sealing areas of the sheet.

[0015] The contents are not particularly limited, but may be in the form of powder, solid, liquid, gel, or other substance.

[0016] (Embodiment 1: Pouch 1) The configuration of a pouch 1 of this embodiment will be described with reference to Fig. 1. Fig. 1 is a front view of the pouch 1.

[0017] 1, pouch 1 comprises a packaging bag 100 that includes a top sheet 111 and a back sheet 112 and is capable of accommodating contents, and an openable / closable line fastener 201 that enables opening and closing of opening 10 located at the top end. Top sheet 111 and back sheet 112 are made of a laminate containing, for example, polyethylene terephthalate, aluminum, nylon, polyethylene, and polypropylene.

[0018] Line fastener 201 is a rigid resin molded product, and its fitting surface is provided on the inner surface of top sheet 111 and back sheet 112 so as to enable opening and closing of top sheet 111 and back sheet 112. The line fastener is not limited to fitting-type line fastener 201, and any type of line fastener may be used as long as it is a member that enables opening and closing of opening 10 located at the upper end.

[0019] The packaging bag 100 includes a first side seal portion 102 and a second side seal portion 103 formed by sealing together the ends of the top sheet 111 and the back sheet 112 in the width direction (left-right direction in Figure 2), a lower seal portion 105 formed by sealing together the bottom of the top sheet 111 and the bottom of the back sheet 112, and an upper seal portion 104 formed by sealing together the top of the top sheet 111 and the top of the back sheet 112.

[0020] The packaging bag 100 includes a first side seal portion 102 and a second side seal portion 103 formed by sealing together the ends of the top sheet 111 and the back sheet 112 in the width direction, an upper seal portion 104 formed by sealing together the top of the top sheet 111 and the top of the back sheet 112, and a lower seal portion 105 formed by sealing together the bottom of the top sheet 111 and the bottom of the back sheet 112.

[0021] Note that the pouch 1 shown in Figure 1 is in the form of a flat pouch without a bottom gusset sheet, but by providing bottom gusset sheets to the lower part of the top sheet 111 and the lower part of the back sheet 112, the pouch 1 may be in the form of a standing pouch that can stand on its own.

[0022] The wire fastener 201 is arranged to connect the first side seal portion 102 and the second side seal portion 103. Upper seal part 104 is provided in parallel to the The point seal portion 110 is Upper seal part 104 from The wire extends toward the wire fastener 201, and a predetermined gap S1 (approximately 0 mm to 15 mm, preferably 2 mm to 10 mm) is provided between the wire fastener 201 and the wire fastener 201. do.

[0023] As a method for sealing between the sheets that make up the packaging bag 100 and for sealing the areas where the line fastener 201 is fixed, various known methods such as fusion bonding using heat sealing, ultrasonic sealing, high-frequency sealing, etc., or bonding using an adhesive may be used.

[0024] The width W2 of the point seal portion 110 depends on the use and size of the packaging bag 100, but in this embodiment it is set to a width that is approximately 1 / 10 to 1 / 20 of the width W1 of the packaging bag 100. In this embodiment, the point seal portion 110 is set at a position offset (toward the left in the figure) with respect to the center line P1 in the lateral direction (left-right direction in the figure) of the packaging bag 100. The point seal portion 110 may be set on the center line P1, but by setting it at a position offset, openings of different widths can be formed in the line fastener 201, as will be described later.

[0025] A side transverse cutting auxiliary line K1 is provided between the top seal portion 104 of the first side seal portion 102 and the line fastener 201. A side transverse cutting auxiliary line K2 and a gap transverse cutting auxiliary line K3 are provided between the top seal portion 104 of the second side seal portion 103 and the line fastener 201. The side transverse cutting auxiliary line K1 and the side transverse cutting auxiliary line K2 are provided at positions corresponding to the positions where the point seal portion 110 will be provided. The gap transverse cutting auxiliary line K3 is provided at a position corresponding to the position where the gap S1 will be provided.

[0026] The corresponding position means that if the lateral horizontal cutting auxiliary line K1 and the lateral horizontal cutting auxiliary line K2 are hypothetically extended along the upper seal portion 104, they will pass through the point seal portion 110, and if the gap horizontal cutting auxiliary line K3 is hypothetically extended along the upper seal portion 104, they will pass through the gap S1.

[0027] The point seal portion 110 is provided with a vertical cutting auxiliary line K4 that extends in the direction (vertical direction in the drawing) in which the point seal portion 110 extends. In the drawing, the vertical cutting auxiliary line K4 is provided over the entire length of the point seal portion 110 from the upper seal portion 104, but it may be an auxiliary line length that extends to an intermediate region of the point seal portion 110.

[0028] The cutting assist line can be, for example, a half-cut line, a perforation line, a cut line, or a combination thereof. The opening line L1 is formed, for example, by laser irradiation.

[0029] In the pouch 1 having the above configuration, for example, when the packaging bag 100 is cut open along the side transverse cutting auxiliary line K1, the tear line reaches the vertical cutting auxiliary line K4, and a part of the top seal portion 104 is cut off from the packaging bag 100. This forms a narrow opening on the left side as shown in the figure, and the linear fastener 201 can be used in this portion. The same applies when the opening is started from the vertical cutting auxiliary line K4 and cut toward the side transverse cutting auxiliary line K1.

[0030] On the other hand, when the packaging bag 100 is cut open using the side horizontal cutting auxiliary line K2, the tear line reaches the vertical cutting auxiliary line K4, and part of the top seal portion 104 is cut off from the packaging bag 100. This forms a wide opening on the right side as shown in the figure, and the linear fastener 201 can be used in this portion. The same applies when the opening is started from the vertical cutting auxiliary line K4 and cut toward the side horizontal cutting auxiliary line K2.

[0031] Furthermore, when the packaging bag 100 is cut open using both the side transverse cutting auxiliary line K1 and the side transverse cutting auxiliary line K2, two openings, one large and one small, can be used at the same time.

[0032] Furthermore, when the packaging bag 100 is cut open using the gap horizontal cutting auxiliary line K3, the tear line passes from the second side seal portion 103 through the gap S1 and reaches the first side seal portion 102, and the entire top seal portion 104 is cut away from the packaging bag 100. This allows the line fastener 201 to be fully opened and used. Alternatively, the user may first cut open the side horizontal cutting auxiliary line K1 and consume the contents through the small opening, and then open the entire bag using the gap horizontal cutting auxiliary line K3 and use up the remaining contents (contents that are difficult to get out) through the wide opening.

[0033] Thus, with pouch 1 in this embodiment, it is possible to select the size of the opening appropriate for the amount and size of the contents to be taken out. Furthermore, a structure that allows the size of the opening to be changed in line fastener 201 can be adopted using a simple manufacturing method.

[0034] (Embodiment 2: Pouch 1A) The configuration of pouch 1A of this embodiment will be described with reference to Fig. 2. Fig. 2 is an enlarged front view of the upper end portion of pouch 1A.

[0035] The basic configuration of the pouch 1A of this embodiment is the same as that of the above-mentioned embodiment 1. The difference is that the width W3 of the point sealed portion 110A is made wider and multiple vertical cutting auxiliary lines K4 are provided in the point sealed portion 110A. For example, the width W3 of the point sealed portion 110A may be at least half the width W1 of the packaging bag 100.

[0036] By adopting such a configuration, it is possible to provide an opening of any size, and it is possible to select an opening size that is more appropriate for the amount and size of the contents to be taken out. Note that the same effect can be obtained by providing multiple point seal portions 110 with the width shown in embodiment 1.

[0037] (Embodiment 3: Pouch 1B) The configuration of pouch 1B of this embodiment will be described with reference to Fig. 3. Fig. 3 is an enlarged front view of the upper end portion of pouch 1B.

[0038] The basic configuration of pouch 1B of this embodiment is the same as that of embodiment 2. The difference is that point seal portion 110B is provided with a non-sealed portion C1 extending inward from the side. By providing this non-sealed portion C1, it becomes possible to easily separate packaging bag 100 toward this non-sealed portion C1.

[0039] A similar non-sealed portion C1 can also be employed in the point seal portion 110 of the first embodiment.

[0040] In each of the above embodiments, a configuration in which a cutting assist line is provided is disclosed, but if a configuration is adopted in which the sealing portion can be easily cut open at any position, it is not necessary to provide a cutting assist line.

[0041] (Embodiment 4: Pouch 1C) The configuration of the pouch 1C of this embodiment will be described with reference to Fig. 4. Fig. 4 is a front view of the pouch 1C.

[0042] The basic structure of pouch 1C of this embodiment is the same as that of embodiment 1. The difference is that no upper seal portion is provided at the top of top sheet 111 or the top of back sheet 112, and opening 10 located at the top end is open. As in embodiment 1, point seal portion 110 has a predetermined gap S1 (approximately 0 mm to 15 mm, preferably 2 mm to 10 mm) between it and line fastener 201.

[0043] In this way, even if an upper seal portion is not provided, by providing the point seal portion 110, it is possible to form an opening of any size, and it becomes possible to select an opening size that is more appropriate for the amount and size of the contents to be taken out. Note that the same effect can be obtained by providing multiple point seal portions 110.

[0044] (Embodiment 5: Pouch 1D) The configuration of the pouch 1D of this embodiment will be described with reference to Fig. 5. Fig. 5 is a front view of the pouch 1D.

[0045] The basic configuration of pouch 1D of this embodiment is the same as that of above-mentioned embodiment 1. The difference is that in pouch 1A of embodiment 1, point sealed portion 110 is provided continuous with top sealed portion 104, but in pouch 1D of this embodiment, point sealed portion 110 has a gap S1 provided between point sealed portion 110 and line fastener 201, and a gap S2 provided between point sealed portion 110 and top sealed portion 104, so that point sealed portion 110 is provided in an island shape.

[0046] A lateral cross-section auxiliary line K1 is provided at a position corresponding to the point seal portion 110 of the first side seal portion 102, and a lateral cross-section auxiliary line K2 is provided at a position corresponding to the point seal portion 110 of the second side seal portion 103.

[0047] A gap horizontal cutting auxiliary line K31 is provided at a position corresponding to the gap S1 in the first side seal portion 102, and a gap horizontal cutting auxiliary line K32 is provided at a position corresponding to the gap S1 in the second side seal portion 103. A gap horizontal cutting auxiliary line K33 is provided at a position corresponding to the gap S2 in the first side seal portion 102, and a gap horizontal cutting auxiliary line K34 is provided at a position corresponding to the gap S2 in the second side seal portion 103.

[0048] When the packaging bag 100 is cut open so as to pass through the gap S2 using the gap horizontal cutting auxiliary line K33 and / or the gap horizontal cutting auxiliary line K34, the shape becomes the same as the pouch 1C of the fourth embodiment.

[0049] When the packaging bag 100 is cut open using the side transverse cutting auxiliary line K1 and / or the side transverse cutting auxiliary line K2, the bag is in the same state as the pouch 1A of the first embodiment, with the point seal portion 110 as the boundary.

[0050] As shown in FIG. 6, the point seal portion 110 may be provided with a vertical cutting auxiliary line K4.

[0051] In each of the above embodiments, a configuration in which a cutting assist line is provided is disclosed, but if a configuration is adopted in which the sealing portion can be easily cut open at any position, it is not necessary to provide a cutting assist line.

[0052] Furthermore, according to the configuration of the pouch in each of the above embodiments, the amount of resin used can be significantly reduced compared to containers made of resin molded products, and after use, the gas can be removed from the gas-sealed portion, folded compactly to reduce the volume, and discarded.

[0053] While the pouch of the present disclosure has been described above in each embodiment, the embodiments disclosed herein are illustrative in all respects and are not limiting. The scope of the present invention is defined by the claims, and includes all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0054] 1, 1A, 1B, 1C, 1D Pouch, 100 Packaging bag, 102 First side seal portion, 103 Second side seal portion, 104 Upper seal portion, 105 Lower seal portion, 110, 110A, 110B Point seal portion, 111 Surface sheet, 112 Back sheet, 201 Wire fastener.

Claims

1. a packaging bag including a top sheet and a back sheet, having an opening at the top end, and capable of containing contents; and an openable and closable wire fastener; The packaging bag is an upper seal portion formed by sealing the top sheet and the back sheet together at the upper end; a first side seal portion and a second side seal portion formed by sealing together an end portion of the top sheet and an end portion of the back sheet in the width direction, the line fastener connects the first side seal portion and the second side seal portion and is provided along the opening; A point seal portion extends upward from the line fastener with a predetermined gap therebetween, A vertical cutting assist line extending vertically is provided in the point seal portion, The point seal portion is provided at a position shifted from the center line of the packaging bag in the width direction toward the first side seal portion, The point seal portion is used to form openings of different widths in the line fastener so that when the packaging bag is cut open toward the first side seal portion using the vertical cutting assist line, a narrow opening is formed in the width direction, and when the packaging bag is cut open toward the second side seal portion using the vertical cutting assist line, an opening wider than the narrow opening is formed in the width direction. Pouch.

2. The upper sheet and the upper sheet are sealed together to form an upper seal portion. a side cross cutting assist line is provided on at least one of the first side seal portion and the second side seal portion at a position corresponding to an upper portion of the lower end of the point seal portion; The pouch of claim 1.

3. a gap lateral cutting assist line is provided in at least one of the first side seal portion and the second side seal portion at a position corresponding to a position where the gap is provided; The pouch according to claim 1 or claim 2.

4. a packaging bag including a top sheet and a back sheet, having an opening at the top end, and capable of containing contents; and an openable and closable wire fastener; The packaging bag is a first side seal portion and a second side seal portion formed by sealing together an end portion of the top sheet and an end portion of the back sheet in the width direction, the line fastener connects the first side seal portion and the second side seal portion and is provided along the opening; A point seal portion is provided that extends upward from the line fastener with a predetermined gap therebetween, a gap lateral cutting assist line is provided in at least one of the first side seal portion and the second side seal portion at a position corresponding to a position where the gap is provided; The length of the point seal portion along the upward direction is greater than the length of the gap between the line fastener and the point seal portion. Pouch.

5. a packaging bag including a top sheet and a back sheet, having an opening at the top end, and capable of containing contents; and an openable and closable wire fastener; The packaging bag is a first side seal portion and a second side seal portion formed by sealing together an end portion of the top sheet and an end portion of the back sheet in the width direction, the line fastener connects the first side seal portion and the second side seal portion and is provided along the opening; A point seal portion is provided that extends upward from the line fastener with a predetermined gap therebetween, The gap between the line fastener and the point seal portion is approximately 0 mm to 15 mm, The length of the point seal portion along the upward direction is greater than the length of the gap between the line fastener and the point seal portion. Pouch.

6. A packaging bag including a top sheet and a back sheet, having an opening at the top end, and capable of containing contents; and an openable and closable wire fastener; The packaging bag is a first side seal portion and a second side seal portion formed by sealing together an end portion of the top sheet and an end portion of the back sheet in the width direction, the line fastener connects the first side seal portion and the second side seal portion and is provided along the opening; A point seal portion extends upward from the line fastener with a predetermined gap therebetween, A plurality of vertical cutting auxiliary lines extending vertically are provided in the point seal portion. Pouch.

7. A packaging bag including a top sheet and a back sheet, having an opening at the top end, and capable of containing contents; and an openable and closable wire fastener; The packaging bag is a first side seal portion and a second side seal portion formed by sealing together an end portion of the top sheet and an end portion of the back sheet in the width direction, the line fastener connects the first side seal portion and the second side seal portion and is provided along the opening; A point seal portion extends upward from the line fastener with a predetermined gap therebetween, The length of the point seal portion along the upward direction is greater than the length of the gap between the line fastener and the point seal portion, The upper end of the packaging bag is not provided with a seal and is in an open state. Pouch.

8. a packaging bag including a top sheet and a back sheet, having an opening at the top end, and capable of containing contents; and an openable and closable wire fastener; The packaging bag is a first side seal portion and a second side seal portion formed by sealing together an end portion of the top sheet and an end portion of the back sheet in the width direction, the line fastener connects the first side seal portion and the second side seal portion and is provided along the opening; A point seal portion extends upward from the line fastener with a predetermined gap therebetween, A vertical cutting assist line extending vertically is provided in the point seal portion, The length of the point seal portion along the upward direction is greater than the length of the gap between the line fastener and the point seal portion. Pouch.

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