Manufacturing method for film-wrapped tissue storage units

Abstract

To provide a method for manufacturing a film packaging tissue storage body for suppressing deformation of a corrugated fiberboard box and breakage of film packaging tissue storage bodies, when the film packaging tissue storage bodies are piled up.SOLUTION: There is provided a method for manufacturing a film packaging tissue storage body 4 in which multiple film packaging tissue storage bodies 1 where multiple film packaging tissues 2 are stored in a gusset packaging bag 1p in a state of being stacked in one direction are boxed in a corrugated fiberboard box 4c. In each of the film packaging tissue storage bodies 1, suction / exhaust ports 121 are formed in the gusset packaging bag 1p, and the film packaging tissue storage bodies 1 are boxed in the corrugated fiberboard box 4c in a state in which the film packaging tissue storage bodies 1 are compressed in the stacking direction of the film packaging tissues 2 by compression means for compressing the film packaging tissue packaging bodies 1 in the lamination direction of the film packaging tissues 2 while discharging air through the suction / exhaust ports 121.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] This invention relates to a method for manufacturing a film-wrapped tissue storage unit. [Background technology]

[0002] Traditionally, when multiple cartons of tissue paper are packed together in a cardboard box, there is a risk that the lower cardboard boxes may collapse under the weight during storage or transportation, potentially crushing the cartons inside.

[0003] Therefore, a method for suppressing carton crushing by the inner flap of a corrugated cardboard box is described, for example, in Patent Document 1, by keeping the thickness of the outer flap and the inner flap of the corrugated cardboard box, as well as the ratio of the thickness of the inner flap to the thickness of the outer flap, within a predetermined range. [Prior art documents] [Patent Documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2016-60510 [Overview of the project] [Problems that the invention aims to solve]

[0005] By the way, in a film-wrapped tissue storage unit, which consists of multiple film-wrapped tissue packages (hereinafter also referred to as "film-wrapped tissues") packaged together and then packed into a cardboard box, simply packing multiple film-wrapped tissue packages into a cardboard box presents a problem: a gap is created between the film-wrapped tissue packages and the cardboard box, causing the lower cardboard box to collapse under the weight of the upper film-wrapped tissue packages, or the film-wrapped tissue packages to burst due to compression within the cardboard box, or the cardboard box to deform due to the reaction force of the compression of the film-wrapped tissue packages within the cardboard box. This problem is unique to film-wrapped tissue storage units, where multiple film-wrapped tissue packages are stored in a cardboard box, and does not occur in the method for manufacturing a cardboard box containing a paper carton as described in Patent Document 1. There is still room for improvement in the method for manufacturing film-wrapped tissue storage units to prevent the cardboard box from being crushed or deformed, or the film-wrapped tissue packages from bursting.

[0006] The present invention aims to provide a method for manufacturing film-wrapped tissue storage units that prevents the cardboard box containing the lower film-wrapped tissue storage unit from being crushed by the weight of the upper film-wrapped tissue storage unit, or the film-wrapped tissue storage unit from bursting due to compression, or the cardboard box from deforming due to the reaction force of the compression of the film-wrapped tissue storage unit inside the cardboard box, when multiple film-wrapped tissue storage units are stacked. [Means for solving the problem]

[0007] A method for manufacturing a film-wrapped tissue storage body according to the first embodiment of the present invention is a method for manufacturing a film-wrapped tissue storage body in which a plurality of film-wrapped tissues are stacked in one direction and stored in a gusseted packaging bag, and a plurality of film-wrapped tissue storage bodies are packed into a corrugated cardboard box, characterized in that each film-wrapped tissue storage body has an intake and exhaust port formed in the gusseted packaging bag, and the plurality of film-wrapped tissue storage bodies are compressed in the stacking direction of the film-wrapped tissues by a compression means that removes air through the intake and exhaust port, and packs the plurality of film-wrapped tissue storage bodies into a corrugated cardboard box in a state of compression in the stacking direction of the film-wrapped tissues.

[0008] This manufacturing method allows multiple film-wrapped tissue packages to be packed tightly into a cardboard box in the stacking direction of the film-wrapped tissues, preventing the lower film-wrapped tissue packages from collapsing into the cardboard box when multiple film-wrapped tissue packages are stacked in the stacking direction. Furthermore, when the film-wrapped tissue packages are compressed in the stacking direction, air is released through the intake and exhaust ports, preventing the film-wrapped tissues from bursting unintentionally due to compression in the stacking direction. Moreover, it prevents deformation of the cardboard box due to the reaction force of the compression of the film-wrapped tissue packages in the stacking direction within the cardboard box.

[0009] A method for manufacturing a film-packaged tissue storage body according to a second embodiment of the present invention is described as the first embodiment, characterized in that each film-packaged tissue inside the film-packaged tissue storage body has an intake and exhaust port formed therein.

[0010] With this manufacturing method, when the film-wrapped tissue packaging is compressed in the stacking direction of the film-wrapped tissues, each film-wrapped tissue is also vented through the intake and exhaust ports. This prevents the film-wrapped tissues from unintentionally bursting when the film-wrapped tissue packaging is compressed in the stacking direction of the film-wrapped tissues, and also allows for effective compression of the film-wrapped tissue packaging in the stacking direction of the film-wrapped tissues.

[0011] The manufacturing method for a film-wrapped tissue storage body according to the third embodiment of the present invention is described as the first embodiment, characterized in that a plurality of the film-wrapped tissue storage bodies are packed into a corrugated cardboard box while being compressed by 80-98% in the stacking direction of the film-wrapped tissues.

[0012] This manufacturing method allows multiple film-wrapped tissue packages to be packed into a cardboard box more effectively and without gaps, in the direction of stacking the film-wrapped tissues. If the compression ratio of the film-wrapped tissue packages in the cardboard box in the direction of stacking is less than 80%, the cardboard box may deform due to the reaction force of the compression of the film-wrapped tissue packages. If the compression ratio of the film-wrapped tissue packages in the cardboard box in the direction of stacking exceeds 98%, when multiple film-wrapped tissue storage units are stacked in the direction of stacking the film-wrapped tissues, the cardboard box of the lower film-wrapped tissue storage unit may be crushed by the weight of the film-wrapped tissue storage unit above it.

[0013] Here, the compression ratio of the film-wrapped tissue in the stacking direction of the film-wrapped tissue packaging is the difference between the height dimension of the film-wrapped tissue in the stacking direction of the film-wrapped tissue packaging in the boxed state (height dimension between the inner flaps of the cardboard box) and the height dimension of the film-wrapped tissue in the stacking direction of the film-wrapped tissue packaging after it has been removed from the boxed state in the cardboard box. [Effects of the Invention]

[0014] According to the present invention, a plurality of film-wrapped tissue packages can be packed in a cardboard box without gaps in a state compressed in the stacking direction of the film-wrapped tissues. Thereby, when a plurality of film-wrapped tissue storage bodies are stacked in the stacking direction of the film-wrapped tissues, crushing of the cardboard box in the stacking direction of the film-wrapped tissues of the lower film-wrapped tissue storage body can be prevented. Further, it is possible to prevent rupture of the film-wrapped tissue package due to compression in the stacking direction of the film-wrapped tissues of the film-wrapped tissue package, and moreover, it is possible to prevent deformation of the cardboard box due to the reaction force of compression in the stacking direction of the film-wrapped tissues of the film-wrapped tissue package in the cardboard box.

Brief Description of the Drawings

[0015] [Figure 1] It is an overall perspective view of a film-wrapped tissue package according to an embodiment of the present invention. [Figure 2] It is a front view of a film-wrapped tissue package according to an embodiment of the present invention. [Figure 3] It is an enlarged plan view of the periphery of the air intake and exhaust port formed on the inclined surface on the top surface side of the film-wrapped tissue package according to an embodiment of the present invention. (a) shows the shape of the air intake and exhaust port according to this embodiment, and (b) shows the shape of the air intake and exhaust port according to a modified example of this embodiment. [Figure 4] It is a plan view of the top surface side of a film-wrapped tissue package according to an embodiment of the present invention. [Figure 5] It is an overall perspective view of the film-wrapped tissues stored in a film-wrapped tissue package according to an embodiment of the present invention. [Figure 6] It is an overall perspective view of a film-wrapped tissue storage body according to an embodiment of the present invention. [Figure 7] It is a sectional view taken along the line VII-VII of FIG. 6. [Figure 8] It is a schematic view for explaining the step of inserting and storing a plurality of film-wrapped tissue packages into a cardboard box according to an embodiment of the present invention.

Embodiments for Carrying Out the Invention

[0016] Hereinafter, embodiments for implementing the present invention will be described in detail with reference to FIGS. 1 to 8. However, the present invention is not limited to the embodiments of this form.

[0017] The film-wrapped tissue package stored in the film-wrapped tissue storage body manufactured by the manufacturing method according to the present invention is a gusseted package storing a plurality of film-wrapped tissues. Hereinafter, in one embodiment of the present invention, the film-wrapped tissue is a pillow package or a caramel package of a laminate in which a plurality of sets of tissue papers are alternately folded and laminated with two tissue papers as a set by a film.

[0018] In the description of this specification and the claims, "top surface" and "bottom surface" are referred to as referring to the surface itself of the film-wrapped tissue storage body, the film gusset packaging bag, and the film packaging bag. However, these terms are for convenience only, and of course do not define an absolute position in the direction of gravity. The same applies to terms such as "upper" and "lower".

[0019] Furthermore, in the description of this specification, the claims, and the drawings, the "height direction", the "width direction", and the "depth direction" are orthogonal to each other.

[0020] Also, in the description of this specification, "rectangle" includes not only a rectangle but also a square, and includes a substantially rectangle and a substantially square, and "cuboid" includes not only a cube but also a substantially cuboid and a substantially cube.

[0021] In this specification, the claims, and the drawings, the term "intake / exhaust port" refers to a portion comprising, for example, a notched piece and a small hole (intake / exhaust port) formed by the outward protrusion of the notched piece. Specifically, for example, when the inside of a film-wrapped tissue package or film-wrapped tissue expands or is compressed by external pressure, the notched piece opens (protrudes), allowing air inside the film-wrapped tissue package or film-wrapped tissue to escape through the small hole. In this invention, the shape, size, and position of the intake / exhaust port can vary as long as the effects of the invention are achieved.

[0022] <Structure of film-wrapped tissue packaging> Figure 1 is an overall perspective view of a film-wrapped tissue package 1 according to one embodiment of the present invention, and Figure 2 is a front view of the film-wrapped tissue package 1 according to this embodiment. Figure 3 is an enlarged plan view of the area around the intake and exhaust port 121 formed on the inclined surface 12 on the top side of the film-wrapped tissue package 1 according to this embodiment. Figure 4 is a plan view of the top side of the film-wrapped tissue package 1 according to this embodiment.

[0023] In this embodiment, as shown in Figure 1, a film-packaged tissue package 1 contains a plurality of film-packaged tissues 2 stored inside a film-gusset packaging bag (hereinafter also simply referred to as "gusset packaging bag") 1p having a top-side sealing portion 11 on its top surface, wherein the top surface of the gusset packaging bag 1p is provided with intake and exhaust ports 121 on the front and back sides, separated by the top-side sealing portion 11.

[0024] In this embodiment, two pairs of intake and exhaust ports 121 are provided on the front and back sides of the inclined surface 12 on the top surface of the gusseted packaging bag 1p. However, this is not limited to the present invention, and the intake and exhaust ports 121 may be provided anywhere on the top surface, front, back, and / or side of the gusseted packaging bag 1p, and the number of intake and exhaust ports 121 is not particularly limited as long as there is one or more.

[0025] In this embodiment, the film-wrapped tissue packaging body 1, as shown in Figures 1, 2, and 4, consists of a top portion 1A having a top surface that includes a top-side sealing portion 11 for sealing the opening on the top side, a pair of inclined surfaces 12 located on the front and back sides so as to sandwich the top-side sealing portion 11, and a body portion 1B that stores five film-wrapped tissues 2 horizontally.

[0026] Gusset packaging is a type of packaging in which multiple items to be packaged are enclosed in a bag-like space between the heat-sealed or other bonded parts at the top and bottom, and which has a gusset between the front and back. In this embodiment as well, a gusset 14 is formed between the front and back, between the handle portion 11h which also serves as the top sealing portion 11 and the bottom sealing portion 13, and multiple film-packaged tissues 2, which are the items to be packaged, are enclosed in the bag-like space between the top sealing portion 11 and the bottom sealing portion 13. The top sealing portion 11 has four-layer overlapping portions 11a formed at both ends in the width direction, and two-layer overlapping portions 11b formed between the four-layer overlapping portions 11a on both sides in the width direction, and a finger hole 112 is formed in this two-layer overlapping portion 11b, and the overlapping films are partially heat-sealed together over the entire area. Furthermore, the bottom sealing portion 13, similar to the top sealing portion 11, has four-layer overlapping portions 13a formed at both ends in the width direction, and two-layer overlapping portions 13b formed between the four-layer overlapping portions 13a on both sides in the width direction, with the overlapping films heat-sealed together in a straight line along the width direction. In this invention, the handle portion 11h does not have to be formed, or even if the handle portion 11h is present, the finger hole 112 does not have to be formed, and it is also permissible to provide a top sealing portion 11 that does not have a height such that the handle portion 11h is formed (a structure like the bottom sealing portion 13).

[0027] Such gusset packaging is manufactured by, for example, folding the sides of a cylindrical gusset packaging bag, also called a gusset tube, inward to flatten it, and then heat-sealing the top portion of the flattened gusset tube to form a handle portion 11h that also serves as a top sealing portion 11 that seals the top opening. Subsequently, the bottom opening of the gusset packaging bag precursor, whose top is sealed, is widened and the film-packaged tissues 2 to be packaged (in this embodiment, five pieces packed horizontally) are inserted through it. After that, the bottom is also sealed by an appropriate sealing means such as heat sealing to form a bottom sealing portion 13.

[0028] Figure 3 is an enlarged plan view of the area around the intake and exhaust port 121 formed on the inclined surface 12 on the top side of the film-packaged tissue packaging body 1 according to this embodiment, as described above. Figure 3(a) shows the shape of the intake and exhaust port 121 according to this embodiment, and Figure 3(b) shows the shape of the intake and exhaust port 121' according to a modified example of this embodiment.

[0029] The intake / exhaust port portion 121 is composed of a notched piece 121d and a small hole formed by the outward protrusion of the notched piece 121d. The notched piece 121d is a straight or curved notch that continuously connects two sides connecting three points that are not on a straight line, and is openable and closable. In this embodiment, as shown in Figures 1 to 3(a), it is formed by making a circular notch in the inclined surface 12 of the gusset packaging bag 1p and leaving a portion intact. More specifically, as shown in Figure 3(a), the intake / exhaust port portion 121 is formed in a substantially circular shape by two semicircular holes with a circular notch leaving connecting portions 121c above and below. By leaving a portion intact in this way, the flap-shaped notched piece 121d can open and close the intake / exhaust port portion 121 at the notched location, allowing air to be vented through the intake / exhaust port portion 121, and also preventing the entry of foreign matter such as dust from entering the intake / exhaust port portion 121.

[0030] Furthermore, in this invention, the shape of the notch in the intake / exhaust port 121 is not limited to a circle, and can be approximately circular, elliptical, egg-shaped, a shell-shaped shape formed by connecting two identical arcs at both ends, a polygon, etc. Also, in this invention, the portion of the intake / exhaust port 121 where the notch remains can be in various locations and shapes, as long as the effects of this invention are achieved. In addition, in this invention, the intake / exhaust port 121 is not limited to being openable and closable by the notched piece 121d, but may be formed as a circular or polygonal opening that is always open.

[0031] The area of ​​a single intake / exhaust port 121 (the area of ​​a single intake / exhaust port 121 composed of two semicircular holes) is 7 mm². 2 ~50mm 2 It is preferable that the total area of ​​the intake / exhaust port 121 (area of ​​a single intake / exhaust port 121 × number of intake / exhaust port 121 (4 in this embodiment)) be 28 mm 2 ~200mm 2 It is preferable that the total area of ​​the intake and exhaust port section 121 be 28 mm 2 As described above, when the film-wrapped tissue packaging 1 is compressed in the stacking direction (height direction) of the film-wrapped tissues 2, the film-wrapped tissue packaging 1 can be quickly and thoroughly vented. The total area of ​​the intake and exhaust port 121 is 28 mm². 2 If it falls below this level, the venting effect will decrease. The total area of ​​the intake and exhaust port section 121 is 200 mm². 2 If the value exceeds a certain limit, the effect of suppressing the intrusion of foreign matter such as dust from the intake and exhaust port 121 decreases, and in particular, when the intake and exhaust port 121 is formed as an opening that is always open, the effect of suppressing the intrusion of foreign matter such as dust from the intake and exhaust port 121 decreases significantly.

[0032] In a modified version of this embodiment, as shown in Figure 3(b), the notched piece 121'd in the intake / exhaust port portion 121' has a V-shape, and the connecting portion between the ends of the notches is the base end of the notched piece 121'd. Here, for example, when air is released from inside the film-packaged tissue packaging 1, the notched piece 121'd protrudes outward from its base end, and after the air is released, a restoring force acts at its base end, causing the notched piece 121'd to return to its original position and close the small hole, thus functioning as a dust intrusion prevention device.

[0033] In this embodiment, two finger holes 112 are provided on the handle portion 11h, spaced apart in the width direction. This configuration distributes the force acting on the handle portion 11h when carrying it, effectively improving the overall strength of the handle portion 11h. In the present invention, one finger hole 112 may be provided on the handle portion 11h, or three or more may be provided spaced apart in the width direction of the handle portion 11h, or a configuration in which no finger holes 112 are provided on the handle portion 11h may be provided at all.

[0034] In this embodiment, the overlapping films in the handle portion 11h are heat-sealed in a dot pattern across the entire handle portion 11h. This configuration provides an uneven surface across the entire handle portion 11h, thereby preventing the handle portion 11h from slipping and improving workability during transport. As shown in Figures 1 and 2, the handle portion 11h has multiple rectangular heat-sealed portions 111 formed at predetermined intervals in the vertical and horizontal directions by heat-sealing the overlapping films. In addition, in this invention, an embodiment in which no heat-sealed portions 111 are formed on the handle portion 11h is also permissible.

[0035] In this embodiment, the shape of the dots in the heat-seal portion 111 is rectangular, but the present invention is not limited to this, and for example, squares, rounded polygons including curves, circles, ellipses, etc., can be used. Also, in this embodiment, the dot pattern of the heat-seal portion 111 is a grid pattern in which rectangular heat-seal portions 111 are aligned at predetermined intervals in the vertical and horizontal directions, but the present invention is not limited to this, and various arrangement patterns such as diagonal grid patterns can be used.

[0036] In the handle portion 11h of the gusseted packaging bag 1p, preferred requirements for having a finger hole 112 in the double-layered film portion 11b are, referring to Figures 1 and 2, (1) the depth dimension L2 of the film-packaged tissue packaging body 1 is ≤ the width dimension L1 × 0.6 of the film-packaged tissue packaging body 1, and (2) the width dimension L3 of the handle portion 11h is ≤ the width dimension L1 × 1.1 of the film-packaged tissue packaging body 1. Here, the value of 1.1 in (2) above takes into account that the film-packaged tissue packaging body 1 is compressed in the width direction.

[0037] The film-packaged tissue 2 according to this embodiment is a bundle of tissue paper that is wrapped in an overlapping pattern, and this overlapping pattern is also known as caramel wrapping or double-wrapped wrapping.

[0038] The film-packaged tissue 2 has a roughly rectangular shape with a bundle of tissue paper stored inside the film packaging bag 2p. As shown in Figure 5 below, the film packaging bag 2p has a perforation 220 formed linearly on its top surface 22, which forms the opening for dispensing the tissue paper.

[0039] Specific examples of the flexible resin packaging film that constitutes the outer casing of film-packaged tissue 2 include single-layer films of polyethylene film, polypropylene film, polyester film, polyethylene terephthalate film, nylon film, vinylidene chloride film, and ethylene vinyl alcohol copolymer, or laminate films appropriately laminated with these films, or gas barrier films obtained by surface treatment such as aluminum vapor deposition on these films. Furthermore, from the viewpoint of environmental protection, it is desirable to use biomass films derived from plant materials such as sugarcane, potatoes (starch), and corn, or biodegradable films made from polylactic acid, etc. From the viewpoint of cost, polypropylene film and polyethylene film are preferred.

[0040] Furthermore, the packaging film that constitutes the outer casing of the film-packaged tissue 2 may be a textured film with excellent design and tactile properties. In addition, if packaging items with odors, such as scented tissue paper, an ethylene vinyl alcohol copolymer resin film or polyethylene terephthalate resin film with excellent fragrance retention properties can be used. A multilayer resin film may also be used in which a polyethylene resin film or a polypropylene resin film is laminated on one or both sides of the ethylene vinyl alcohol copolymer resin film or polyethylene terephthalate resin film to enhance heat-sealability.

[0041] For the gusseted packaging bag 1p, polypropylene film and polyethylene film are preferable from a cost and ease of opening perspective. Examples of polyethylene films include linear low-density polyethylene film (LLDPE), low-density polyethylene film (LDPE), and medium-density polyethylene film (MDPE). In addition, single-layer films of polyethylene terephthalate film, nylon film, vinylidene chloride film, ethylene vinyl alcohol copolymer, or laminate films appropriately laminated with these films, or gas barrier films with surface treatments such as aluminum vapor deposition applied to these films can be used. Similar to the packaging film that constitutes the outer casing of film-packaged tissue 2, from an environmental protection standpoint, it is desirable to use biomass films derived from plant materials such as sugarcane, sweet potatoes (starch), and corn, or biodegradable films made from polylactic acid, etc.

[0042] In this invention, it is sufficient that a plurality of film-wrapped tissues 2 are stored in a gusseted packaging bag 1p having a top-side sealing portion 11 on the top surface. The bottom-side sealing portion 13 is not limited to a configuration in which overlapping films are heat-sealed together in a straight line along the width direction, but may also be sealed by overlapping heat-seal packaging. Furthermore, the configuration is not limited to the handle portion 11h also serving as the top-side sealing portion 11. For example, a separate top-side sealing portion may be provided between the handle portion 11h and the storage portion for the film-wrapped tissues 2, in which overlapping films are heat-sealed together in a straight line along the width direction.

[0043] In this embodiment, as shown in Figure 4, two pairs of intake and exhaust ports 121 are formed symmetrically on the top surface of the film-wrapped tissue packaging 1, with the handle portion 11h as the boundary. With this configuration, the intake and exhaust ports 121 on the front and back sides of the film-wrapped tissue packaging 1, with the handle portion 11h as the boundary, can be easily formed in one step using a die-cutting roll or the like. In the present invention, the number of intake and exhaust ports 121 is not limited to this, and it is also permissible to provide intake and exhaust ports 121 on either the front or back side of the top surface.

[0044] FIG. 5 is an overall perspective view of the film-wrapped tissue 2 stored in the film-wrapped tissue package 1 according to the present embodiment.

[0045] The film-wrapped tissue 2 has a substantially rectangular parallelepiped shape with a bundle of tissue papers stored in the film packaging bag 2p. As shown in FIG. 5, a perforation 220 for forming an outlet for taking out the tissue paper is linearly formed on the top surface portion 22 of the film packaging bag 2p.

[0046] In the present embodiment, as shown in FIG. 5, an air intake / exhaust port portion 121 is formed in each film-wrapped tissue 2 within the film-wrapped tissue package 1.

[0047] With this configuration, when the film-wrapped tissue package 1 is compressed in the stacking direction (height direction) of the film-wrapped tissues 2, each film-wrapped tissue 2 is also vented through the air intake / exhaust port portion 121. Therefore, it is possible to prevent each film-wrapped tissue 2 from accidentally rupturing due to the compression of the film-wrapped tissue package 1 in the stacking direction of the film-wrapped tissues 2, and the film-wrapped tissue package 1 can be effectively compressed in the stacking direction of the film-wrapped tissues 2.

[0048] More specifically, as shown in FIG. 5, two pairs of air intake / exhaust port portions 121 are formed at intervals on the pair of long side surface portions 23 of the film packaging bag 2p. Note that the number of the air intake / exhaust port portions 121 is not limited to this, and the location where the air intake / exhaust port portions 121 are formed may be any of the long side surface portions 23 and the short side surface portions 24 constituting the substantially rectangular parallelepiped film packaging bag 2p. The air intake / exhaust port portion 121 may be configured to be openable and closable in the same manner as the air intake / exhaust port portion 121 of the film-wrapped tissue package 1, or may be an opening that is always open. Also, the area of a single air intake / exhaust port portion 121 (the area of a single air intake / exhaust port portion 121 composed of two semicircular holes) is 7 mm 2 ~50 mm 2It is preferable that the total area of ​​the intake / exhaust port 121 (area of ​​a single intake / exhaust port 121 × number of intake / exhaust port 121 (4 in this embodiment)) be 28 mm 2 ~200mm 2 It is preferable that the total area of ​​the intake and exhaust port section 121 be 28 mm 2 As described above, when the film-wrapped tissue packaging 1 is compressed in the stacking direction (height direction) of the film-wrapped tissue 2, the film-wrapped tissue 2 can be quickly and thoroughly vented. The total area of ​​the intake and exhaust port 121 is 28 mm². 2 If it falls below this level, the venting effect will decrease. The total area of ​​the intake and exhaust port section 121 is 200 mm². 2 If the value exceeds a certain limit, the effect of suppressing the intrusion of foreign matter such as dust from the intake and exhaust port 121 decreases, and in particular, when the intake and exhaust port 121 is formed as an opening that is always open, the effect of suppressing the intrusion of foreign matter such as dust from the intake and exhaust port 121 decreases significantly.

[0049] In the present invention, an embodiment in which the film packaging bag 2p is not provided with an intake / exhaust port 121 is also acceptable.

[0050] <Manufacturing method for film-wrapped tissue storage units> Figure 6 is an overall perspective view of a film-wrapped tissue storage unit according to one embodiment of the present invention, Figure 7 is a cross-sectional view of Figure 6 in direction VII-VII, and Figure 8 is a schematic diagram illustrating the process of inserting and storing multiple film-wrapped tissue packages into a cardboard box according to this embodiment. For the sake of explanation, in Figures 6 to 8, the film-wrapped tissue package 1 is schematically represented as five rectangular parallelepipeds arranged in a row.

[0051] In this embodiment, the film-wrapped tissue storage unit 4 is manufactured through the following steps (A) to (E). (A) Folding and stacking process This process involves using an interholder to fold two-ply tissue paper in a pop-up manner, stacking a specified number of sheets, and creating a long laminate. (B) Cutting process This process involves using a cutter to cut a long laminated material to a specified size. (C) Film packaging process for tissue bundles This process involves placing the laminated material, which has been cut to the specified dimensions, into a film packaging bag 2p. (D) Gusset packaging process This process involves gusset-packaging film-wrapped tissues 2, which are filled with laminates, in specified quantities (5 units in this embodiment). (E) Product packaging process This process involves packing multiple film-wrapped tissue packages 1, each containing a specified quantity of film-wrapped tissue 2, into a cardboard box 4c (see Figure 8).

[0052] The present invention provides a method for manufacturing a film-wrapped tissue storage unit, as shown in Figures 6 to 8, which involves packing multiple film-wrapped tissue storage units 1 (8 units in 2x4 rows in this embodiment), each containing multiple (5 units in this embodiment) film-wrapped tissues 2 stacked in one direction in a gusseted packaging bag 1p, into a corrugated cardboard box 4c. Each film-wrapped tissue storage unit 1 has an intake / exhaust port 121 formed in the gusseted packaging bag 1p. The multiple film-wrapped tissue storage units 1 are compressed in the direction of stacking of the film-wrapped tissues 2 by a compression means that removes air through the intake / exhaust port 121 while compressing the multiple film-wrapped tissue storage units 1 in the direction of stacking of the film-wrapped tissues 2, and then packed into a corrugated cardboard box 4c.

[0053] This allows multiple film-wrapped tissue packages 1 to be packed tightly into a cardboard box 4c in the direction of stacking the film-wrapped tissues 2, without any gaps. This prevents the lower film-wrapped tissue storage units 4 from collapsing into the cardboard box 4c in the direction of stacking the film-wrapped tissues 2 when multiple such storage units are stacked in the direction of stacking the film-wrapped tissues 2. Consequently, it is possible to suppress bursting and soiling of the film-wrapped tissue packages 1 and film-wrapped tissues 2 contained in the cardboard box 4c. Furthermore, when the film-wrapped tissue packaging 1 is compressed in the stacking direction of the film-wrapped tissues 2, the film-wrapped tissue packaging 1 is vented through the intake and exhaust port 121, thereby preventing the film-wrapped tissue packaging 1 from bursting due to compression in the stacking direction of the film-wrapped tissues 2, and also preventing deformation of the corrugated cardboard box 4c due to the reaction force of the compression of the film-wrapped tissue packaging 1 in the stacking direction of the film-wrapped tissues 2 within the corrugated cardboard box 4c.

[0054] The corrugated cardboard box 4c according to this embodiment is a so-called Type A corrugated cardboard box (a grooved corrugated cardboard box of type 02 according to JIS Z1507), and has a rectangular parallelepiped shape including a pair of inner flaps and a pair of outer flaps on the top side, a pair of inner flaps and a pair of outer flaps on the bottom side opposite to them, a pair of width surfaces continuous with and opposite to the pair of inner flaps on the top side (represented by the part indicated by reference numeral 4tf in Figure 7) and the pair of inner flaps on the bottom side (represented by the part indicated by reference numeral 4bf in Figure 7), and a pair of length surfaces continuous with and opposite to the pair of outer flaps on the top side and the pair of outer flaps on the bottom side. The pair of outer flaps on the top side and the pair of outer flaps on the bottom side can abut each other when their base edges are folded perpendicular to the length surfaces, and the pair of inner flaps on the top side and the pair of inner flaps on the bottom side have a gap between their free edges when their base edges are folded perpendicular to the width surfaces (see Figure 7). In this embodiment, the blank of the corrugated cardboard box 4c has a stepped pattern that extends in a direction perpendicular to the base edge where the inner flap (or outer flap) is folded when assembled. However, in the present invention, the stepped pattern may be formed to extend parallel to the base edge. Furthermore, in the present invention, it is also permissible that the pair of inner flaps on the top side and the pair of inner flaps on the bottom side of the corrugated cardboard box 4c can abut each other when their base edges are folded perpendicular to the width plane.

[0055] In this embodiment, when manufacturing the film-wrapped tissue storage unit 4, multiple film-wrapped tissue packages 1 are packed into a corrugated cardboard box 4c while being compressed by 80-98% in the stacking direction of the film-wrapped tissues 2.

[0056] This allows multiple film-wrapped tissue packages 1 to be packed more effectively and without gaps into a cardboard box 4c in the stacking direction of the film-wrapped tissues 2 without any inconvenience. If the compression ratio of the film-wrapped tissue packages 1 in the stacking direction of the film-wrapped tissues 2 within the cardboard box 4c is less than 80%, the cardboard box 4c may deform due to the reaction force of the compression of the film-wrapped tissue packages 1 in the stacking direction within the cardboard box 4c. If the compression ratio of the film-wrapped tissue packages 1 in the stacking direction of the film-wrapped tissues 2 within the cardboard box 4c exceeds 98%, when multiple film-wrapped tissue storage units 4 are stacked in the stacking direction of the film-wrapped tissues 2, the cardboard box 4c of the lower film-wrapped tissue storage unit 4 may be crushed by the weight of the cardboard box 4c of the film-wrapped tissue storage unit 4 above it.

[0057] Here, the compression ratio is the height dimension in the stacking direction of the film-wrapped tissues 2 in the film-wrapped tissue package 1 in the boxed state (height dimension between the inner flaps of the corrugated box 4c (distance H2 between the inner flap 4tf on the top side and the inner flap 4bf on the bottom side in Figure 7)) / the value of the height dimension H1 in the stacking direction of the film-wrapped tissues 2 in the film-wrapped tissue package 1 after it has been removed from the boxed state. For the height dimension in the stacking direction of the film-wrapped tissues 2 in the film-wrapped tissue package 1 in the boxed state, the height dimension between the inner flaps of the corrugated box 4c (distance H2 between the inner flap 4tf on the top side and the inner flap 4bf on the bottom side in Figure 7), which is substantially the same as this dimension, can be used as a substitute. Specifically, multiple film-wrapped tissue packages 1 packed in a cardboard box 4c are removed, and the distance between the base end of the inner flap 4bf on the bottom side of the cardboard box 4c from which the multiple film-wrapped tissue packages 1 were removed and the valley fold line of the inner flap 4tf on the top side is measured. This measurement can then be used as a substitute for the height dimension of the film-wrapped tissue packages 1 in the stacking direction of the film-wrapped tissues 2 in the packed state. A carpenter's square (for example, a carpenter's square made by Shinwa Measuring Instruments Co., Ltd., with a thickness of 50 cm, silver, and the same scale on both sides, JIS (product name)) can be used for this measurement. On the other hand, the height dimension H1 in the stacking direction of the film-wrapped tissues 2 in the film-wrapped tissue package 1 removed from its boxed state is measured by taking out multiple film-wrapped tissue packages 1 packed in a corrugated cardboard box 4c, leaving one of them standing for 3 hours under environmental conditions of a temperature of 23℃±1℃ and a humidity of 50%±2%, and measuring the height dimension excluding the thickness of the top-side sealing part 11 and the bottom-side sealing part 13. For this measurement, a precision measuring instrument linear height LH-600E, 518-351-10 manufactured by Mitutoyo Corporation can be used.

[0058] In the product packaging process described in (E) above, as shown in Figure 8, for example, a group of eight film-wrapped tissue packages 1 bundled together, called a film-wrapped tissue package group 3, is inserted into the corrugated cardboard box 4c before the flaps are folded, and the pair of inner flaps and outer flaps on the top side and the pair of inner flaps and outer flaps on the bottom side of the corrugated cardboard box 4c are folded at their base edges so that they are perpendicular to the width and length planes, respectively, and the group of film-wrapped tissue packages 3 stored in the corrugated cardboard box 4c is compressed by pressing from both the top and bottom sides, and the air inside each film-wrapped tissue package 1 of the group of film-wrapped tissue packages 3 is released to the outside of the corrugated cardboard box 4c through the intake and exhaust ports 121 formed in each package 1. In other words, the flaps of the corrugated cardboard box 4c act as a compression means, compressing the film-wrapped tissue packages 1 in the stacking direction of the film-wrapped tissues 2. Then, by sealing the abutting portions of the two pairs of outer flaps with sealing tape or the like, the film-wrapped tissue storage unit 4 shown in the lower left of Figure 8 is formed.

[0059] In this embodiment, the plate of the pusher 5 is made of a mesh material, so as not to obstruct the air being released from the film-wrapped tissue packaging 1 through the intake / exhaust port 121 when inserting the film-wrapped tissue packaging group 3 into the corrugated cardboard box 4c before folding each flap.

[0060] <Other> The present invention is not limited to the embodiments described above or the modifications mentioned throughout, and can be modified or altered as appropriate without departing from the technical spirit of the present invention.

[0061] For example, in the above embodiment, intake and exhaust ports 121 are formed on the front and back sides of the top surface of the gusseted packaging bag 1p, with the handle portion 11h as the boundary. However, the handle portion 11h may be omitted, and as described above, one or more intake and exhaust ports 121 may be provided on the top surface and / or front, back, and side of the gusseted packaging bag 1p at one end 11E on the sealing side. In this case, when packing multiple film-wrapped tissue packages 1 into a corrugated cardboard box 4c, the packing operation allows for the air to be released from the film-wrapped tissue packages 1, and the multiple film-wrapped tissue packages 1 can be packed stably into the corrugated cardboard box 4c without rattling. In particular, by setting the size of the cardboard box 4c to be small so that multiple film-wrapped tissue packages 1 can be packed into a cardboard box 4c, and the multiple film-wrapped tissue storage units 4 can be stably stacked, the film-wrapped tissue packages 1 can be compressed and packed into the cardboard box 4c while releasing air from the film-wrapped tissue packages 1, and the multiple film-wrapped tissue packages 1 can be packed into the cardboard box 4c stably and without rattling. Furthermore, in this case, if the intake and exhaust ports 121 are provided on two adjacent surfaces of the gusset packaging bag 1p, for example, the top surface and the front surface of the gusset packaging bag 1p, when compressing and packing multiple film-wrapped tissue packages 1 into the cardboard box 4c, the film-wrapped tissue packages 1 can be released from the film-wrapped tissue packages 1, and the multiple film-wrapped tissue packages 1 can be packed into the cardboard box 4c stably and without rattling, regardless of the direction of compression. In these cases as well, it is preferable to form the intake and exhaust port portion 121 so that it can be opened and closed by a notch, similar to the film-packaged tissue packaging body 1 according to the present embodiment of the present invention. This also prevents foreign matter such as dust from entering the film-packaged tissue packaging body 1 while allowing air to be released to the outside of the film-packaged tissue packaging body 1. [Explanation of Symbols]

[0062] 1. Film-wrapped tissue packaging 1A Top 11 Top side sealing portion 11h Handle part 111 Heat seal section 112 Finger hole 12 Slope 121 Intake and exhaust port section 1B Torso 1p gusseted packaging bag 11E One end (top side end) 13E Other end (bottom side end) 13Eo Opening at the other end 2 Film-wrapped tissues 2-pack film packaging bags 3. Film-packaged tissue packaging group 4. Film-wrapped tissue storage unit 4c cardboard box 4tf Top side inner flap 4bf Inner flap on the bottom side 5 Pusher

Claims

1. A method for manufacturing a film-wrapped tissue storage unit, comprising packing multiple film-wrapped tissues stacked in one direction in a gusseted packaging bag into a corrugated cardboard box, wherein the sides of the gusseted tube of the gusseted packaging bag are folded inward to flatten it, and at a position where four films do not overlap, a pair of inclined surfaces on the top side of each film-wrapped tissue storage unit have intake and exhaust ports formed in the gusseted packaging bag, and the multiple film-wrapped tissue storage units are compressed in the direction of stacking of the film-wrapped tissues by a compression means that removes air through the intake and exhaust ports, and packs the multiple film-wrapped tissue storage units in a state of compression in the direction of stacking of the film-wrapped tissues.

2. The method for manufacturing a film-packaged tissue storage body according to claim 1, characterized in that each film-packaged tissue inside the film-packaged tissue packaging body has an intake / exhaust port formed therein.

3. A method for manufacturing a film-wrapped tissue storage body according to claim 1, characterized in that a plurality of the film-wrapped tissue packaging bodies are compressed by 80-98% in the stacking direction of the film-wrapped tissues and packed into a corrugated cardboard box.

Images