Package

Abstract

To compactly package a roll body of sanitary tissue paper, to reduce material cost and physical distribution cost, and to reduce a storage space.SOLUTION: The packaging body has a roll body 11p part of the sanitary tissue paper and a flexible packaging member 12 having a storage space capable of storing the roll body 11p part of the sanitary tissue paper, and stores the roll body 11p part of the sanitary tissue paper in a compressed state in the storage space of the packaging member 12.SELECTED DRAWING: Figure 2

Description

[Technical Field]

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

[0002] BACKGROUND ART Conventionally, laminates of sanitary thin paper such as tissue paper, hand towels, and kitchen towels have been packaged compactly for the purpose of improving the transport efficiency of laminates of sanitary thin paper and reducing storage space.

[0003] For example, Patent Document 1 describes a technology in which a bundle of tissue papers is stored inside a heat-shrinkable binding film, and the heat-shrinkable binding film is heated to shrink the bundle of tissue papers, thereby compressing the bundle into a compact size. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-047270 Summary of the Invention [Problem to be solved by the invention]

[0005] Meanwhile, it is anticipated that there will be demands for compact packaging of sanitary tissue paper rolls to improve transportation efficiency and reduce storage space.

[0006] The present invention aims to provide a package that can compactly package a roll of sanitary tissue paper, thereby reducing material costs, logistics costs, and storage space. [Means for solving the problem]

[0007] The packaging body of the first form of the present invention comprises a roll of sanitary tissue paper and a flexible packaging member having a storage space capable of storing the roll of sanitary tissue paper, and is characterized in that the roll of sanitary tissue paper is stored in a compressed state within the storage space of the packaging member.

[0008] The packaging body according to the second aspect of the present invention is the one described as the first aspect, characterized in that the roll of sanitary thin paper is compressed in a direction non-parallel to the axis of the roll of sanitary thin paper.

[0009] The packaging body according to the third aspect of the present invention is the one described as the first aspect, characterized in that the roll of sanitary tissue paper is compressed to a length along the compression direction of 60% or less of the initial state before compression and is stored.

[0010] In a fourth embodiment of the present invention, the density of the roll of sanitary tissue paper in a compressed state is 0.19 g / cm 3 More than 0.28g / cm 3 This is described as a first aspect characterized by the following.

[0011] A packaging body according to a fifth aspect of the present invention is the packaging body described in the first aspect, characterized in that the packaging member is airtightly sealed in a state where the storage space is decompressed.

[0012] The packaging body of the sixth aspect of the present invention is the one described as the first aspect, characterized in that the inner peripheral surface of the packaging member can define the outer peripheral shape of the roll of sanitary tissue paper in a compressed state.

[0013] A packaging body according to a seventh aspect of the present invention is the sixth aspect, characterized in that the roll of sanitary thin paper forms an approximately rectangular parallelepiped or cubic shape within the storage space.

[0014] The packaging body of the eighth aspect of the present invention is described as the first aspect, characterized in that the roll of sanitary tissue paper can transition between a first state in which it has an approximately cylindrical shape and a second state in which the center part has an approximately flat shape.

[0015] A packaging body according to a ninth aspect of the present invention is the packaging body described as the eighth aspect, characterized in that opposing portions sandwiching the central axis of the central portion are bent to assume the second state.

[0016] The packaging body according to the tenth aspect of the present invention is the eighth aspect, characterized in that the roll of sanitary tissue paper can be transitioned to the first state when, in an uncompressed state, pressure acts on specified areas that are non-parallel to the compression direction and opposite each other across the axis. [Effects of the Invention]

[0017] According to the present invention, rolls of sanitary tissue paper can be packaged compactly, which in turn reduces material costs, logistics costs, and storage space. [Brief explanation of the drawings]

[0018] [Figure 1] 1 is an overall perspective view of a packaging body according to an embodiment of the present invention. [Figure 2] 2A and 2B are front plan views of a container containing a roll of sanitary tissue paper, where (a) shows the container containing the roll of sanitary tissue paper before compression, and (b) shows the compressed roll of sanitary tissue paper shown in FIG. 1. [Figure 3] 1A and 1B are plan views of a packaging device for producing a package according to one embodiment of the present invention, where (a) is a front view, (b) is a top view, (c) is a bottom view, and (d) is a front view after compressing the target item to a second predetermined position. [Figure 4] 4A and 4B are cross-sectional views as seen from the side of a packaging device that produces a package according to one embodiment of the present invention, where (a) is a cross-sectional view taken along the IVa-IVa direction in FIG. 3A showing the state before compression, and (b) is a cross-sectional view taken along the IVb-IVb direction in FIG. 3D showing the state after compression. [Figure 5]1A and 1B are plan views of a box body of a packaging device that produces a package according to one embodiment of the present invention, where (a) is a top view, (b) is a cross-sectional view in the Vb-Vb direction of (a), and (c) is a cross-sectional view in the Vc-Vc direction of (a). [Figure 6] This is a diagram to explain the process of degassing and sealing a container of a compressed sanitary tissue paper roll using a degasser and sealing means included in a packaging device that produces a package according to one embodiment of the present invention. [Figure 7] FIG. 10 is an overall perspective view of a package according to a modified example of an embodiment of the present invention. [Figure 8] 1 is a flow chart of a packaging process for producing a package according to one embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0019] Hereinafter, an embodiment of the present invention will be described in detail with reference to Figures 1 to 8. However, the present invention is not limited to this embodiment.

[0020] The target item to be compressed and packaged by the packaging device of the present invention is a roll of sanitary tissue paper, such as kitchen towels or toilet paper. The sanitary tissue paper roll is wound into a roll shape that can be pulled out. In the following embodiment, a case where the sanitary tissue paper is toilet paper and the rolled up product (roll) (hereinafter also referred to as "toilet roll") is compressed and packaged will be described as an example. In the present invention, taking a toilet roll wound around a cardboard tube as an example, pressure is first applied to the toilet roll in a direction intersecting the axial direction of the cardboard tube core so that the cardboard tube is crushed into a straight line. Multiple toilet rolls crushed by this pressure are prepared, placed in a packaging member, and compressed and packaged using the packaging device described below to obtain a compressed and packaged toilet roll. The present invention also allows for a configuration in which the cardboard tube is not crushed. In particular, loosely wound products may have a change in texture if compressed (pressed) with high pressure. Therefore, by controlling the pressing force, a compressed package may be obtained in a form that does not completely crush the paper tube, or in a form that compresses the paper tube until it is closed but does not apply excessive pressing force to the toilet roll.

[0021] In this specification, the terms "top surface" and "bottom surface" refer to the surfaces of the components themselves. 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 "upper" and "lower."

[0022] 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.

[0023] <Configuration of toilet rolls compressed and packaged by packaging equipment> Figure 1 is an overall oblique view of a package 1 for a compressed roll of sanitary thin paper according to one embodiment of the present invention (hereinafter also referred to as "compressed package for a roll of sanitary thin paper"); Figure 2 is a front plan view of an arrangement containing a roll of sanitary thin paper, with Figure 2(a) showing the package 1p for the roll of sanitary thin paper before compression, and Figure 2(b) showing the compressed package 1 for the roll of sanitary thin paper shown in Figure 1.

[0024] The sanitary tissue paper roll 11p is, for example, a roll (i.e., a toilet roll) in which toilet paper is wound around a paper tube 111p. Six rolls (2 x 3) are housed in a packaging member 12 (a gusset bag in this embodiment) with a sealed bottom, and are then compressed into a package 1 of the sanitary tissue paper roll as shown in Figures 1 and 2(b) by a packaging device 2 described below. In Figure 2(b), reference numeral 111 represents the paper tube that has been crushed by compression. The number of toilet rolls compressed in the present invention is not limited to six, and may be one or more or a number other than six. The toilet roll may also be double-wound, for example, with a roll length of 70 m or more and a roll diameter of 100 mm to 134 mm.

[0025] As shown in Figures 1, 2(a), and 2(b), the packaging body 1 of this embodiment comprises a roll of sanitary thin paper 11p and a flexible packaging member 12 having a storage space capable of accommodating the roll of sanitary thin paper 11p, with the roll of sanitary thin paper 11p stored in a compressed state within the storage space of the packaging member 12.

[0026] This configuration allows the sanitary tissue paper roll 11p to be packed compactly, which in turn reduces material costs, logistics costs, and storage space.

[0027] In this embodiment, as shown in Figures 2(a) and 2(b) (and Figures 3(a), 3(d), 4(a), and 4(b) described below), the sanitary thin paper roll 11p is compressed in a direction non-parallel to the axis of the sanitary thin paper roll 11p.

[0028] In this embodiment, the sanitary thin paper roll 11p is stored in a state in which its length in the compression direction is compressed to 60% or less of its initial state before compression. Details will be described later.

[0029] In this embodiment, the density of the roll body 11 of compressed sanitary thin paper is 0.19 g / cm 3 More than 0.28g / cm 3 The following is the result.

[0030] In this embodiment, the packaging member 12 is airtightly sealed with the storage space decompressed by a packaging device 2 (particularly a compressor 23, a deaerator 25, and a sealing means 26) described below.

[0031] The volume of the roll body 11 of compressed sanitary thin paper is approximately equivalent to the volume of the storage space that houses the roll body 11 of compressed sanitary thin paper, and there can be no gaps.

[0032] In this embodiment, the inner peripheral surface of the packaging member 12 can define the outer peripheral shape of the roll 11 of sanitary thin paper in a compressed state.

[0033] In this embodiment, the sanitary thin paper roll 11 has a substantially rectangular parallelepiped or cubic shape within the storage space.

[0034] In this embodiment, the roll of sanitary thin paper can transition between a first state (see Figure 2(a)) in which it has an approximately cylindrical shape and a second state in which the center (paper tube 111p) has an approximately flattened shape (see symbol 111 in Figure 2(b)).

[0035] In this embodiment, the roll of sanitary thin paper is bent at opposing locations across the axis of the center (paper tube 111p) to assume the second state.

[0036] That is, two locations symmetrical about the axis may be bent, causing the core (cardboard tube 111p) to be crushed.

[0037] In this embodiment, the sanitary thin paper roll 11p can transition from an uncompressed state to the first state by pressure acting on predetermined areas that are not parallel to the compression direction and that face each other across the axis.

[0038] That is, the roll removed from the packaging 1 can return to its initial state.

[0039] <Packaging equipment configuration> FIG. 3 is a plan view of the packaging device 2 that produces the package 1 according to this embodiment. FIG. 3(a) is a front view, FIG. 3(b) is a top view, FIG. 3(c) is a bottom view, and FIG. 3(d) is a front view after the container 1p of the target article, a roll of sanitary tissue paper, has been compressed to the second predetermined position P2. FIG. 4 is a cross-sectional side view of the packaging device 2 that produces the package 1 according to this embodiment. FIG. 4(a) is a cross-sectional view taken along the line IVa-IVa in FIG. 3(a) showing the state before compression, and FIG. 4(b) is a cross-sectional view taken along the line IVb-IVb in FIG. 3(d) showing the state after compression. FIG. 5 is a plan view of the box 22 of the packaging device 2 that produces the package 1 according to this embodiment. FIG. 5(a) is a top view, FIG. 5(b) is a cross-sectional view taken along the line Vb-Vb in FIG. 5(a), and FIG. 5(c) is a cross-sectional view taken along the line Vc-Vc in FIG. 5(a). Figure 6 is a diagram illustrating the process of deaerating and sealing the container 1p of compressed sanitary tissue paper rolls using a deaerator 25 and sealing means 26 included in the packaging device 2 that produces the package 1 according to this embodiment. For ease of explanation, the packaging member 12 and a restricting unit 22, which will be described later, are omitted from Figures 3 and 4. For ease of explanation, the lever 231 of the hydraulic jack 23 is omitted from Figure 4.

[0040] As shown in Figures 3 and 4, the packaging device (compression processor) 2 of this embodiment is a device that packages and compresses a roll 11p of sanitary thin paper, and is equipped with a regulating section 22 (see Figure 5) that can regulate displacement in a predetermined direction of the roll 11p when it is contained in a packaging material 12 and placed at a first predetermined position P1, a compressor 23 for compressing the roll when placed at the first predetermined position P1 to a second predetermined position P2, a deaerator 25 (not shown in Figures 3 and 4) for deaerating the packaging material 12 after compression, and a sealing means 26 (not shown in Figures 3 and 4) for sealing the opening 14 of the deaerated packaging material 12.

[0041] This configuration allows the sanitary tissue paper roll 11p to be compressed and packaged simply and easily, thereby reducing material costs, logistics costs, and storage space.

[0042] The packaging device 2 according to this embodiment includes a platform for placing the compressor 23 and the regulating unit, and a frame 21 for supporting and fixing the upper plate 24 described below. The support plate on which the regulating unit is installed and supported is fixed to the ram of the compressor 23, and is movable in the vertical direction so as to be raised and lowered by the compressor 23.

[0043] In the present invention, a package containing multiple toilet rolls in a packaging member may be set in the restricting section 22 described below to obtain a compressed package. (That is, the package is placed in the restricting section 22, and the compressed package is obtained through a compression process and a degassing process.) When crushed, the toilet roll may deform so as to expand radially, but this radial deformation is restricted by contact with the inner surface of the packaging member and / or the inner surface of the restricting section 22. As a result, the toilet roll inside the compressed package becomes a roughly rectangular parallelepiped, minimizing gaps between adjacent toilet rolls inside the package and gaps between compressed packages when stacked side by side, thereby ensuring storage space and improving storability.

[0044] In this embodiment, the restricting portion 22 is capable of receiving the toilet roll container 1p therein. The restricting portion 22 has a surrounding surface that surrounds the outer periphery of the toilet paper roll 11p in a direction perpendicular to the compression direction. The surrounding surface of the restricting portion 22 restricts the roll 11p from being displaced in a direction perpendicular to the compression direction. By arranging the surrounding portions so that they are in contact with or in close proximity to the entire circumference of the six rolls 11p arranged in a 2x3 configuration, the space defined by the restricting portion 22 can be formed so that the bottom surface of the restricting portion 22 abuts against the side surface of the roll 11p and is close to the end surface of the roll 11p without any gaps. In this embodiment, the restricting portion 22 is a box. The box 22 is removable from the packaging device 2. In this embodiment, the first predetermined position P1 is the bottom surface of the restricting portion 22 before compression. The second predetermined position P2 is set based on the scale provided on the restricting portion 22, and in this embodiment, it is a position corresponding to the open end of the box 22. The second predetermined position P2 can also be considered the sum of the position of the bottom of the restricting portion 22 after compression (the third predetermined position) and the height of the restricting portion 22. In the process of placing the toilet paper roll container 1p at the first predetermined position P1 of the restricting portion 22, the restricting portion 22 can restrict displacement of the toilet paper roll 11p in a predetermined direction. By arranging the surrounding portion so that it abuts or is close to the six rolls 11p arranged in a 2x3 configuration around the entire circumference, displacement of the rolls in a direction perpendicular to the compression direction can be restricted. This prevents the rolls from shifting position during compression. In the present invention, the restricting portion 22 may be formed in a shape and size that provides a gap between the rolls.

[0045] The compressor 23 is configured to lift the box body 22 via a support plate that supports the underside of the box body. In this embodiment, the compressor 23 is a hydraulic jack, and by pressing (pumping) the lever 231, the ram rises, lifting the toilet paper roll 11p and sandwiching it with the upper plate 24, compressing the target object in the radial direction of the toilet paper roll 11p. A release valve (not shown) releases the hydraulic pressure to lower the target object, allowing adjustment of the compression of the target object. In the present invention, multiple hydraulic jacks (or cylinders) may be provided. Furthermore, the present invention is not limited to hydraulic jacks, and may also include mechanical jacks (screw jacks, rack-driven jacks), air jacks, etc., or a compressor configured with multiple of these. The compressor 23 compresses the sanitary tissue paper roll 11p so that its radial dimension H2 after compression is 60% or less of its radial dimension H1 before compression (see Figures 2(a) and 2(b)). Compression can be continued until dimension H2 is about 50%, and the toilet roll after removal from the compressed packaging will regain some of its shape due to its restoring force, so that its texture does not change much compared to the toilet roll before compression, and the feel when used is maintained (see Table 1 and its explanation below).

[0046] As shown in FIG. 3(b), the upper plate 24 is flat and plate-like. In the present invention, an opening may be provided in the center, and the upper portion of the packaging member 12 of the toilet paper roll container 1p may be passed through the opening before compression by the compressor 23. The upper plate 24 is sized to cover substantially the entire upper surface of the container 1p. However, the present invention is not limited to this configuration, and the upper plate may be smaller than the upper surface of the container. In this embodiment, the upper plate 24 is compressed to a position where it abuts the upper edge of the restricting portion 22 (in this case, the upper plate 24 is configured not to enter the restricting portion 22), and then the degassing process begins. Alternatively, the upper plate 24 may be configured to enter the internal space of the restricting portion 22, in which case the side portion of the roll 11p can be compressed below the upper end of the restricting portion. The compression end position may also be determined by a visible scale, such as a groove carved into the inner peripheral surface of the surrounding portion. After (or during) the compression, a deaerator 25 (not shown in FIGS. 3 and 4) and a sealing means 26 (not shown in FIGS. 3 and 4) are used to deaerate the interior of the packaging member 12 and seal the opening 14 of the packaging member 12 using the upper part of the packaging member 12. By deaerating and sealing during compression, it becomes possible to hermetically seal the packaging member 12 with the storage space containing the toilet paper roll reduced in pressure.

[0047] In this embodiment, the deaerator 25 and the sealing means 26 are integrated. However, in the present invention, they may be separate. Known deaerators and sealers may be used for the deaerator 25 and the sealing means 26. The deaerator 25 and the sealing means 26 are configured to open and close vertically. The deaerator 25 has an air intake nozzle (not shown). The air intake nozzle is inserted into the opening 14 of the packaging member 12 to deaerate. After deaerating, the sealing means 26 seals the opening 14 of the packaging member 12 by sandwiching it between the openings, thereby forming and sealing the sealing portion 13 in the packaging member 12. While the sealing portions 13 shown in FIGS. 1 and 2(b) are two linear portions, the present invention is not limited to this. One portion, three or more portions, or any other shape may be used as long as the sealing function is achieved.

[0048] 7 is an overall perspective view of a package according to a modified example of the present embodiment. Of the components constituting the package according to this modified example, those having similar functions are assigned the same reference numerals as in the above embodiment, and descriptions thereof will be omitted.

[0049] In the above embodiment, as shown in FIG. 1, the depth of the packaging member 12 extends in a direction perpendicular to the axial direction of the roll body. In this modification, as shown in FIG. 7, the depth direction of the packaging member 12' and the axial direction of the roll body 11p are aligned, and the roll body 11p is placed in the packaging member 12', compressed, and packaged to form a package of compressed roll body 11. The roll body may be compressed and packaged in this manner. Also, as shown in FIG. 7, a handle hole 15 that allows the user to grip and carry the package may be provided between the open end of the packaging bag and the seal portion 13. In the present invention, the handle hole 15 may be a pair of circles, or may have various shapes such as an ellipse or an oval. The handle hole 15 and the seal portion 13 may be adopted in the above embodiment.

[0050] <Packaging material composition> In the present invention, the material and thickness of the packaging member 12 (or 12') can be appropriately selected as follows.

[0051] The packaging member 12 (or 12') can be made using a film made of a resin material, a biodegradable material (biodegradable plastic such as polylactic acid), a biomass material (biomass plastic), or a combination of these.

[0052] Examples of resins constituting the film forming the packaging member 12 (or 12') include polyolefin resins, polyester resins, polyamide resins, polyether resins, acrylic resins, and natural polymer compounds (cellulose acetate, etc.). These can be used alone or in combination of two or more. Examples of polyolefin resins include polyethylene (PE), polypropylene (PP), and ethylene-vinyl acetate copolymer (EVA). Examples of polyester resins include polyethylene terephthalate (PET) and polyethylene naphthalate (PEN).

[0053] Resins used for the film forming the packaging member 12 (or 12') may also be polystyrene (PS), polyvinyl chloride (PVC), polyvinylidene chloride (PVDC), polyamide (PA), etc. Among these, polyethylene, polypropylene, etc. are preferred because they are flexible and easy to handle, have high heat-sealing properties, and are inexpensive.

[0054] It is also preferable to select a resin with high gas barrier properties, but even if a resin with relatively low gas barrier properties is selected, the gas blocking effect can be improved by increasing the film thickness. For example, in the case of polyethylene, a film thickness of less than 40 μm is susceptible to adverse effects due to gas permeation, and the degassed state may be lost, so it is desirable to make the film 40 μm or more.

[0055] In contrast, in the case of a material with high gas barrier properties such as polypropylene, even a thickness of 40 μm can block gas, so the thickness can be set to less than 40 μm.

[0056] However, it is desirable to set the thickness of the film forming the packaging member 12 (or 12') within the range of, for example, 20 μm or more and 100 μm or less. This is because by setting the thickness of the resin film to 20 μm or more, sufficient strength can be ensured for the packaging member 12 (or 12') in which the roll body 11p is housed. Furthermore, by setting the thickness of the resin film to 100 μm or less, flexibility and lightness of the packaging member 12 can be ensured.

[0057] Furthermore, the form of the film forming the packaging member 12 (or 12') is not particularly limited, and may include a single-layer film made of a resin material, a biodegradable material, a biomass material, etc., a laminated film made by stacking these, a film made by bonding or laminating a resin material, a biodegradable material, and / or a biomass material with pulp paper or nonwoven fabric, a mixed film made from a mixture of multiple resin materials, etc.

[0058] The packaging form of the packaging member 12 (or 12') is not limited to gusset packaging, but may be any packaging form that can maintain the degassed state at least after the degassing step. For example, gusset packaging, caramel packaging, pillow packaging, or a combination of these may be used.

[0059] <Density and measurement height of compressed toilet roll packaging before and after compression> Table 1 shows an example of the density and measured height of the compressed and packaged toilet roll before and after compression in the packaging device 2 that produces a compressed and packaged toilet roll according to one embodiment of the present invention.

[0060] The density was calculated by measuring the mass of the toilet roll, finding the volume of the toilet roll (or a roll obtained by compressing it), and dividing the mass by the volume. The volume of the roll (including the toilet roll) here was calculated based on the mass of the roll placed in the packaging material 12 (or 12'), the winding diameter of the roll from above the packaging material 12 (or 12'), the roll width, and the length of the compressed roll in the length, width, and height directions, and the thickness of the packaging material 12 (or 12') measured from the measured lengths.

[0061] [Table 1]

[0062] Here, in Table 1, the "initial" state represents a state in which neither compression nor degassing has been performed, the "compressed and degassed" state represents a state in which the product has been compressed and degassed by the packaging device 2, and the "opened" state represents a state in which the product has been opened a certain period of time (approximately 10 days) after compression and degassing, allowing air to enter. The "opened" state can be an indicator of how much the product will return to its original state after being opened after compression and degassing.

[0063] In Table 1, "density" is the density calculated by the above method. The mass of the roll body when calculating the density is determined by measuring the mass of the laminate including the packaging member 12 (or 12') and subtracting the mass of the packaging member 12 (or 12').

[0064] "Height" refers to the length along the compression direction (height (roll diameter) in the case of an unpressurized toilet roll), and is the height of the roll body, not including the thickness of the packaging member 12 (or 12'). The thickness was reduced to about half by compression. "Height" can be used as a guide to the state before and after compression. "Density" before and after compression also serves as a guide to the extent to which a compressed toilet roll will return to its original shape after opening.

[0065] Table 2 shows the measurement results of height and density according to the degree of compression of the toilet roll as Examples 1 to 7.

[0066] [Table 2]

[0067] For example, when a roll having a diameter of 11.4 cm is compressed and the length (height) in the compression direction is reduced, the density increases and the rigidity in directions other than the compression direction increases, as shown in Table 2. As a result, the roll can withstand external forces during transportation and maintain its shape within the packaging material.

[0068] Furthermore, if the height is increased and the degree of compression is reduced, the compressed roll body can be more easily returned to its original cylindrical shape when it is opened after compression and degassing (for example, pressed in a direction perpendicular to the compression direction to return to its cylindrical shape).

[0069] FIG. 8 shows a flow of a packaging process for producing the packaging body 1 according to this embodiment.

[0070] The packaging process by the packaging device 2 that produces the package 1 according to this embodiment includes the steps of storing a toilet paper roll 11p in a packaging member 12, placing the stored roll 11p at a first predetermined position P1, compressing the roll 11p placed at the first predetermined position P1 to a second predetermined position P2, evacuating the compressed packaging member 12, and sealing the opening 14 of the evacuated packaging member 12.

[0071] The worker who compresses and packages the toilet paper roll 11p first prepares the packaging device 2 and gets ready to start packaging (Step S11), places six toilet rolls 11p in a gusset bag 12 (Step S12), and prepares the toilet roll container 1p as shown in Figure 2(a). Next, the worker places the toilet roll container 1p on the bottom (i.e., first predetermined position P1) of the box 22 that has been removed from the packaging device 2 (Step S13), and places the box 22 on a platform of the frame 21 of the packaging device 2 that can be moved up and down by the ram of the compressor 23 (Step S14). Next, the toilet paper roll 11p is compressed by the compressor 23 of the packaging device 2 (Step S15). The inside of the gusset bag 12 is then evacuated using the deaerator 25 (step S16), and the opening 14 of the gusset bag 12 is sealed using the sealing means 26 (step S17), thereby obtaining the compressed packaged toilet roll 1 shown in Figures 1 and 2(b), and the series of steps is completed (step S18). By compressing in this manner, sufficient compression and rigidity can be achieved, and the compressed packaged toilet roll 1 becomes a hard (approximately) rectangular parallelepiped, so that multiple compressed packages 1 of toilet rolls can be stacked without shifting.

[0072] Conventionally, laminates of sanitary tissue paper have been packaged compactly in order to improve the transport efficiency of the laminates of sanitary tissue paper and reduce storage space. For example, Patent Document 1 describes a technology in which a bundle of tissue paper is placed inside a heat-shrinkable bundling film and heated to shrink the heat-shrinkable bundling film, thereby compressing the bundle of tissue paper into a compact size.

[0073] Meanwhile, it is anticipated that there will be demands for compact packaging of sanitary tissue paper rolls to improve transportation efficiency and reduce storage space.

[0074] According to this embodiment, the sanitary thin paper roll 11p can be packaged compactly, which in turn reduces material costs, logistics costs, and storage space.

[0075] <Other> 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.

[0076] For example, in a packaging device that produces a package according to this embodiment, the object to be compressed may be placed directly on a plate portion that is fixed to and pushed up by the ram of hydraulic jack 23, without using box 22, and compression may be performed according to the scale on a ruler or the like that serves as a regulating unit. In this case, the first predetermined position is the upper surface of the plate portion that is fixed to and pushed up by the ram before compression, and the second predetermined position is the position of the upper surface of the plate portion that is fixed to and pushed up by the ram after compression plus the numerical value on the scale on the ruler or the like. [Explanation of symbols]

[0077] 1. Compressed packaging of sanitary tissue paper roll 11 Compressed roll of sanitary tissue paper 12, 12' Packaging material 13 Seal part 14 Aperture 1p Sanitary tissue paper roll holder 11p Sanitary tissue paper roll H1 Height of the sanitary tissue paper roll before compression H2 Height of the sanitary tissue paper roll after compression 2 Packaging equipment 21 frames 22 Box body (regulatory part) 23 Compressor 24 Upper plate 25 Deaerator 26 Sealing means P1 1st predetermined position P2 2nd predetermined position

Claims

1. The device includes a roll of sanitary tissue paper and a flexible packaging member having a storage space capable of storing the roll of sanitary tissue paper, A packaging body characterized in that the roll of sanitary tissue paper is stored in a compressed state within the storage space of the packaging member.

2. 2. The package according to claim 1, wherein the roll of sanitary thin paper is compressed in a direction non-parallel to an axis of the roll of sanitary thin paper.

3. The package according to claim 1, wherein the roll of sanitary thin paper is stored in a state compressed to a length in the compression direction of 60% or less of its initial state before compression.

4. The density of the roll of sanitary thin paper in a compressed state is 0.19 g / cm 3 0.28g / cm or more 3 2. The package according to claim 1, wherein:

5. 2. The package according to claim 1, wherein the packaging member is airtightly sealed with the storage space being decompressed.

6. 2. The packaging body according to claim 1, wherein the inner peripheral surface of the packaging member defines the outer peripheral shape of the roll of sanitary tissue paper in a compressed state.

7. 7. The package according to claim 6, wherein the roll of sanitary thin paper has a substantially rectangular parallelepiped or cubic shape within the storage space.

8. The packaging body according to claim 1, characterized in that the roll of sanitary tissue paper can transition between a first state in which it has a substantially cylindrical shape and a second state in which its center portion has a substantially flattened shape.

9. 9. The package according to claim 8, wherein opposing portions of the central portion on either side of the axis of the central portion are bent to assume the second state.

10. The packaging body described in claim 8, characterized in that the roll of sanitary tissue paper can be transitioned to the first state when, in an uncompressed state, pressure acts on specified areas that are non-parallel to the compression direction and opposite each other across the axis.

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