Sanitary tissue product package

Abstract

To provide a sanitary tissue paper product package capable of inexpensively and effectively improving rigidity and strength over the whole of a handle part.SOLUTION: The present invention is a sanitary tissue product packaging body 1 in which a plurality of sanitary tissue products 2 are stored in a side 1p of a film gusset packaging bag having a handle portion 11 on a top surface side, and a finger hook hole 112 is provided in a two film overlapping portion of the handle portion 11, wherein the films overlapped with each other in the handle portion 11 are partially heat-sealed over the entire area of the handle portion 11.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a sanitary tissue product package. [Background technology]

[0002] BACKGROUND ART Conventionally, a sanitary tissue paper product package in which a plurality of sanitary tissue paper products are stored in a gusset package having a handle on the top side has been known as a sanitary tissue paper product package in which sanitary tissue paper products such as toilet rolls and film-wrapped tissue paper (hereinafter also referred to as "film-wrapped tissue paper") are stored.

[0003] With this type of sanitary thin paper product packaging, if the handle has low rigidity, it becomes difficult to place a finger through the finger hole, and if the strength of the finger hole is low, the handle may stretch or break, changing the shape of the finger hole when the product is carried.

[0004] In particular, in the handle portion of the gusset packaging, such a problem was more pronounced in a configuration in which there was a finger hole in the two-ply part of the film, such as the film-wrapped tissue assembly package disclosed in Patent Document 1, compared to a configuration in which there was a finger hole in the four-ply part of the film.

[0005] Therefore, as in the packaging bag disclosed in Patent Document 2, it is conceivable to attach a reinforcing film to the handle portion to cover the finger hole, thereby improving the rigidity of the handle portion and the strength of the finger hole. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Patent Publication No. 2021-50026 [Patent Document 2] Patent No. 5396917 Summary of the Invention [Problem to be solved by the invention]

[0007] However, in the above-mentioned conventional structure, not only does the reinforcing film increase the number of parts, resulting in higher costs, but it also has the problem that it can only improve the rigidity and strength of the handle portion partially, and it is not possible to effectively improve the rigidity and strength of the handle portion as a whole.

[0008] An object of the present invention is to provide a sanitary thin paper product package that can effectively improve the rigidity and strength of the entire handle at low cost. [Means for solving the problem]

[0009] The sanitary thin paper product packaging of the first form of the present invention is a sanitary thin paper product packaging in which multiple sanitary thin paper products are stored in a film gusset packaging bag having a handle portion on the top side, and which has a finger hole in the overlapping part of the two films in the handle portion, and is characterized in that the overlapping films in the handle portion are partially heat-sealed over the entire area of ​​the handle portion.

[0010] This configuration makes it possible to effectively improve the rigidity and strength of the entire handle portion of the sanitary thin paper product packaging at low cost.

[0011] In addition, the sanitary thin paper product packaging according to the second embodiment of the present invention is the same as that described in the first embodiment, characterized in that the films overlapping each other in the handle portion are heat-sealed in a dot pattern over the entire area of ​​the handle portion.

[0012] This configuration provides unevenness over the entire handle of the sanitary thin paper product packaging, thereby preventing the handle from slipping and improving ease of handling during transport.

[0013] Furthermore, the sanitary thin paper product packaging of the third aspect of the present invention is the one described as the first or second aspect, characterized in that the finger holes are provided in multiple locations spaced apart in the width direction of the handle portion.

[0014] This configuration distributes the force acting on the handle portion of the sanitary thin paper product package when the package is carried, and more effectively improves the strength of the entire handle portion. [Effects of the Invention]

[0015] According to the present invention, in a film gusset packaging bag having a handle portion on the top side, the films that are overlapped with each other in the handle portion are partially heat-sealed over the entire area of ​​the handle portion, so that the rigidity and strength of the entire handle portion of the sanitary thin paper product packaging can be improved at low cost and effectively. [Brief explanation of the drawings]

[0016] [Figure 1] 1 is an overall perspective view of a sanitary thin paper product package according to one embodiment of the present invention. FIG. [Figure 2] FIG. 1 is a front view of a sanitary thin paper product package according to one embodiment of the present invention. [Figure 3] FIG. 3 is an enlarged view of part III in FIG. 2. DETAILED DESCRIPTION OF THE INVENTION

[0017] Hereinafter, an embodiment of the present invention will be described in detail with reference to Figures 1 to 3. However, the present invention is not limited to this embodiment.

[0018] The sanitary tissue paper product package of the present invention contains a plurality of sanitary tissue paper products gusseted together, and the sanitary tissue paper products contained in the sanitary tissue paper product package of the present invention include toilet rolls, film-wrapped tissue paper, kitchen towel rolls, hand towel rolls, etc. In one embodiment of the present invention, the sanitary tissue paper product is film-wrapped tissue paper, which is formed by alternately folding and stacking multiple sets of tissue paper, each set consisting of two sheets of tissue paper, and then pillow-wrapping or caramel-wrapping the stack with film. In the drawings, the film-wrapped tissue paper contained in the sanitary tissue paper product package is represented by a two-dot chain line.

[0019] In this specification and claims, the terms "top surface" and "bottom surface" refer to the surfaces of the film gusset packaging bag itself. However, these terms are used merely for convenience and do not, of course, define absolute positions in the direction of gravity. The same applies to terms such as "top" and "bottom."

[0020] Furthermore, in the present specification, claims, and drawings, the "height direction," "width direction," and "depth direction" are all orthogonal to each other.

[0021] In addition, in the description of this specification, the term "rectangle" not only includes rectangular shapes but also square shapes, and also includes approximate rectangular shapes and approximate square shapes.

[0022] FIG. 1 is an overall perspective view of a sanitary thin paper product package 1 according to one embodiment of the present invention, FIG. 2 is a front view of the sanitary thin paper product package 1 according to this embodiment, and FIG. 3 is an enlarged view of part III in FIG. 2.

[0023] In this embodiment, as shown in Fig. 1, a film gusset packaging bag 1p has a handle 11 on the top side, and multiple sanitary thin paper products (film-wrapped tissue paper) 2 are stored in the sanitary thin paper product package 1. The handle 11 has a finger hole 112 in the double-layered film portion. The overlapped films in the handle 11 are partially heat-sealed across the entire handle 11. That is, multiple film-wrapped tissue paper 2, which are the packaged items, are contained in the bag-shaped space between the handle 11, which also serves as the top-side sealing portion, and the bottom-side sealing portion 13. The handle 11 has four-layered portions 11a at both widthwise ends, where four layers of film are overlapped, and two-layered portions 11b, where two layers of film are overlapped between the four-layered portions 11a on both widthwise sides, and the two-layered portions 11b have finger holes 112, and the overlapped films are partially heat-sealed across the entire area. As with the handle portion 11, the bottom side sealing portion 13 has a four-ply portion 13a formed at both widthwise ends, where four films are stacked, and a two-ply portion 13b formed between the four-ply portions 13a on both widthwise sides, where two films are stacked, and the stacked films are heat-sealed together in a linear fashion along the widthwise direction.

[0024] This configuration makes it possible to improve the rigidity and strength of the entire handle portion 11 of the sanitary thin paper product packaging 1 at low cost.

[0025] 1 and 2, the sanitary thin paper product package 1 in this embodiment is composed of a top portion 1A having a handle portion 11 and a pair of inclined surface portions 12, and a body portion 1B containing five film-wrapped tissue paper sheets 2 packed horizontally. In the present invention, the film-wrapped tissue paper sheets 2 are not limited to being packed horizontally, with their bottom surfaces placed flat on the top surface, but may also be packed vertically, with their sides facing the bottom surface of the film gusset packaging bag 1p.

[0026] Gusset packaging is a type of packaging in which multiple packaged items are enclosed in a bag-like space between the adhesive parts on the top and bottom sides, such as by heat sealing, and has a gusset between the front and back.In this embodiment, too, a gusset 14 is formed between the handle part 11, which also serves as the top sealing part, and the bottom sealing part 13, and between the front and back.

[0027] Such gusset packaging is produced, for example, by folding the sides of a cylindrical film gusset packaging bag, also known as a gusset tube, into the inside of the bag to flatten it, and then heat-sealing the top side of the gusset tube to form a heat-sealed portion 111, thereby forming a handle portion 11 that also serves as a top-side sealing portion that seals the top-side opening, and then expanding the bottom-side opening of the film gusset packaging bag precursor with the top side sealed, and inserting the film-wrapped tissue paper 2 to be packaged (five pieces packed horizontally in this embodiment), and then sealing the bottom side using an appropriate sealing means such as heat-sealing to form a bottom-side sealing portion 13.

[0028] In the present invention, it is sufficient that a plurality of sanitary thin paper products (film-wrapped tissue paper 2) are stored in a film gusset packaging bag 1p having a handle 11 on the top side, and the bottom sealing part 13 is not limited to a configuration in which the overlapping films are heat-sealed linearly along the width direction, but may be sealed by overlapping heat-seal packaging. Also, the handle 11 is not limited to a configuration in which it also serves as the top sealing part, but for example, a top sealing part may be separately provided between the handle 11 and the storage part for the film-wrapped tissue paper 2, where the overlapping films are heat-sealed linearly along the width direction to seal.

[0029] In this embodiment, finger holes 112 are provided in two locations spaced apart in the width direction of handle portion 11. This configuration distributes the force acting on handle portion 11 when carrying, effectively improving the strength of handle portion 11 as a whole. In the present invention, finger holes 112 may be provided in one location on handle portion 11, or may be provided in three or more locations spaced apart in the width direction of handle portion 11.

[0030] In this embodiment, the overlapping films in the handle 11 are heat-sealed in a dot pattern over the entire area of ​​the handle 11. This configuration provides an uneven surface over the entire handle 11, which in turn prevents the handle 11 from slipping and improves ease of handling during transportation. As shown in Figures 1 to 3, the overlapping films are heat-sealed to form a plurality of rectangular heat-sealed sections 111 aligned at predetermined intervals in the length and width directions in the handle 11.

[0031] As shown in FIG. 3 , the rectangular heat-sealed portions 111 are all the same size, with a gap d between adjacent rectangular heat-sealed portions 111 in the height and width directions. In the present invention, the size, shape, arrangement pattern, and gaps of the heat-sealed portions 111 can be designed taking into consideration the rigidity of the handle 11 and ease of gripping with fingers. However, to achieve the effects of the present invention, it is preferable that the ratio of the total area of ​​the heat-sealed adhesive surfaces to the area of ​​the handle 11 be 20% or more and 60% or less. If the ratio of the total area of ​​the heat-sealed adhesive surfaces to the total area of ​​the handle 11 is less than 20%, the strength of the entire handle 11 cannot be effectively improved. If the ratio of the total area of ​​the heat-sealed adhesive surfaces to the area of ​​the handle 11 is more than 60%, the unevenness caused by the heat-sealed portions 111 is reduced, making it difficult to effectively prevent the handle 11 from slipping, and effectively improving operability during transportation.

[0032] In this embodiment, the shape of the dots in the heat-sealed portion 111 is rectangular, but the present invention is not limited to this and can be, for example, a square, a polygon with rounded corners including curves, a circle, an ellipse, etc. Furthermore, in this embodiment, the dot pattern of the heat-sealed portion 111 is a grid pattern in which rectangular heat-sealed portions 111 are aligned vertically and horizontally at a predetermined interval d, but the present invention is not limited to this and various arrangement patterns such as a diagonal grid pattern can be adopted as long as the effects of the present invention are achieved. In particular, it is preferable that the dot pattern of the heat-sealed portion 111 be a grid pattern in which non-heat-sealed bonded portions (non-adhesive portions) are not continuous, which can more effectively improve the strength of the handle portion 11.

[0033] In the present invention, the handle portion 11 may be configured such that the overlapping films are partially heat-sealed across the entire area. This does not necessarily mean that the overlapping films are heat-sealed across the entire area in a dotted pattern. Alternatively, the overlapping films may be heat-sealed across the entire area in a striped pattern, linearly along the height or width. A grid-like heat-seal pattern is preferred, in which the overlapping films are heat-sealed across the entire area in a linear pattern along the height and width. This effectively distributes the force acting on the handle portion 11 during carrying in the height and width directions, thereby effectively improving the strength of the handle portion 11. Furthermore, when the handle portion 11 has a striped heat-seal pattern in which the overlapping films are heat-sealed across the entire area in a linear pattern along the height, it is preferred that the overlapping films above the finger holes be heat-sealed across the entire width of the handle portion 11 for reinforcement.

[0034] In this embodiment, two pairs of air vent holes 121 for preventing expansion of the sanitary thin paper product package 1 are formed in the pair of inclined surface portions 12 of the film gusset packaging bag 1p, line-symmetrically with respect to the handle portion 11. The air vent holes 121 are formed by making circular cuts in the inclined surface portions 12 of the film gusset packaging bag 1p and leaving a portion, as shown in Figures 1 and 2. In the present invention, the air vent holes 121 may be provided in the side surfaces (for example, width surfaces or length surfaces) of the film gusset packaging bag 1p instead of in the inclined surface portions 12, and an embodiment in which the air vent holes 121 are not formed anywhere in the film gusset packaging bag 1p is also acceptable.

[0035] In the handle portion 11 of the film gusset packaging bag 1p, the preferred requirements for having a finger hole 112 in the two-ply portion 11b where two layers of film are overlapped are, with reference to Figures 1 and 2, (1) the depth dimension L2 of the sanitary thin paper product packaging 1 ≦ the width dimension L1 × 0.6 of the sanitary thin paper product packaging 1, and (2) the width dimension L3 of the handle portion 11 ≦ the width dimension L1 × 1.1 of the sanitary thin paper product packaging 1.

[0036] The film-wrapped tissue paper 2 according to this embodiment is obtained by overlap-wrapping a bundle of tissue paper, and this overlap-wrap packaging is also called caramel wrapping or clasped wrapping packaging.

[0037] Specific examples of flexible resin packaging films that constitute the exterior of the film-wrapped tissue paper 2 include polyethylene film, polypropylene film, polyester film, polyethylene terephthalate film, nylon film, vinylidene chloride film, and single-layer films of ethylene-vinyl alcohol copolymer, as well as laminate films containing these films, and gas barrier films obtained by applying surface treatments such as aluminum vapor deposition to these films. From an environmental perspective, it is desirable to use biomass films derived from plant materials such as sugarcane, potato (starch), and corn. From a cost perspective, polypropylene film and polyethylene film are preferred.

[0038] The wrapping film that constitutes the exterior of the film-wrapped tissue paper 2 may be a matte film that has excellent design and feel, or, if scented tissue paper or other odorous items are to be wrapped, an ethylene-vinyl alcohol copolymer resin film or a polyethylene terephthalate resin film that has excellent aroma retention properties can be used. A multilayer resin film with improved heat-sealing properties may also be used by laminating a polyethylene resin film or a polypropylene resin film on one or both sides of the ethylene-vinyl alcohol copolymer resin film or the polyethylene terephthalate resin film.

[0039] Polypropylene and polyethylene films are desirable for the film gusset packaging bag 1p in terms of cost and ease of opening. Examples of polyethylene films include linear low-density polyethylene (LLDPE), low-density polyethylene (LDPE), and medium-density polyethylene (MDPE). Other possible materials include polyethylene terephthalate, nylon, vinylidene chloride, and single-layer films of ethylene-vinyl alcohol copolymers, as well as laminate films containing these films and gas barrier films that have been surface-treated with aluminum vapor deposition or other methods. As with the packaging film that constitutes the exterior of the film-wrapped tissue paper 2, biomass films derived from plant materials such as sugarcane, potato (starch), and corn are desirable from an environmental perspective.

[0040] Conventionally, in sanitary thin paper product packages that have a handle on the top side and contain multiple sanitary thin paper products in a gusset package, if the handle has low rigidity, it becomes difficult to place fingers in the finger hole, and if the finger hole is not strong enough, the handle may stretch or break, changing the shape of the finger hole when the product is carried.

[0041] In particular, in the handle portion of the gusset packaging, such a problem was more pronounced in a configuration in which there was a finger hole in the two-ply part of the film, such as the film-wrapped tissue assembly package disclosed in Patent Document 1, compared to a configuration in which there was a finger hole in the four-ply part of the film.

[0042] Therefore, as in the packaging bag disclosed in Patent Document 2, it is conceivable to attach a reinforcing film to the handle portion to cover the finger hole, thereby improving the rigidity of the handle portion and the strength of the finger hole.

[0043] However, in the above-mentioned conventional structure, not only does the reinforcing film increase the number of parts, resulting in higher costs, but it also has the problem that it can only improve the rigidity and strength of the handle portion partially, and it is not possible to effectively improve the rigidity and strength of the handle portion as a whole.

[0044] According to this embodiment, in a film gusset packaging bag 1p having a handle portion 11 on the top side, the films overlapping each other in the handle portion 11 are partially heat-sealed over the entire area of ​​the handle portion 11, so that the rigidity and strength of the handle portion 11 of the sanitary thin paper product packaging 1 can be improved over the entire area at low cost.

[0045] The present invention is not limited to the above-described embodiments or the modifications described throughout, and appropriate changes and modifications can be made without departing from the technical concept of the present invention. [Explanation of symbols]

[0046] 1 Sanitary tissue paper product packaging 1p Film Gusset Packaging Bag 1A Top 11 Handle 111 Heat seal section 112 Finger hole 12 Slope section 121 Vent hole 1B Torso 2. Sanitary tissue products (film-wrapped tissue paper)

Claims

1. A sanitary thin paper product package in which a plurality of sanitary thin paper products are stored in a film gusset packaging bag having a handle on the top surface side, and a finger hole is provided in the overlapping portion of the two films in the handle, and the overlapping films in the handle are partially heat-sealed over the entire area of ​​the handle, The sanitary thin paper product packaging body is characterized in that the film gusset packaging bag has an air vent hole formed therein.

2. The sanitary thin paper product package according to claim 1, wherein the overlapping films at the handle are heat-sealed in a dot pattern over the entire area of ​​the handle.

3. The sanitary thin paper product package according to claim 1 or 2, wherein a plurality of finger holes are provided at intervals in the width direction of the handle portion.

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