CN118255064A - Sheet material collection package and sheet material package - Google Patents

Abstract

The invention provides a sheet collection package capable of improving productivity of a stored sheet package and maintaining loading efficiency. The sheet collection package includes: a sheet package; and a package box made of cardboard, accommodating a plurality of the sheet packages, wherein the sheet packages have: a sheet laminate having a rectangular parallelepiped shape and formed by laminating a plurality of sheets; a packaging bag made of a resin film, which houses the sheet laminate; and a take-out port formed in a top surface of the packaging bag for drawing the sheet, wherein the sheet laminate is formed by laminating the sheet by a multi-bench folder, and the sheet package is formed by candy-packaging the sheet laminate, and a hardness (ARH) in a height direction of an aggregate of 5 sheet packages laminated in the height direction of the sheet package is 2.8% or more and 7.2% or less.

Description

Sheet material collection package and sheet material package

Technical Field

The present invention relates to a sheet collection package and a sheet package.

Background

In sanitary tissue paper such as paper towel, cardboard boxes in which a web is stored in a cardboard box have been widely used, but in recent years, there has been an increasing demand for film packaging in which a web is stored in a resin film packaging bag from the viewpoints of transportation, storage, disposal, environmental load, cost, and the like.

In order to prevent the removability of sanitary tissue paper from being lowered by the pressing force (contact) of the web when the web is stored in a packaging bag in the production of film packaging, a rotary folder (inter-folder) is used in which the side surfaces of the stored web are easily aligned (for example, refer to patent document 1).

Further, the film package is transported and stored in a state where a plurality of film packages are stored in a layer box (for example, refer to patent document 2).

Patent document 1: japanese patent laid-open publication No. 2018-102858

Patent document 2: japanese patent application registration No. 3233887

Disclosure of Invention

< Problem to be solved by the invention >

However, in the production of film packages using a rotary folding machine, the productivity of the film packages cannot be improved because the feeding ability of the web is low.

In addition, if a multi-table folder with high web feeding capability is used instead of the rotary folder, the productivity of film packages increases, but the web side surface becomes uneven, so that the film package capacity increases accordingly. As a result, in the conventional case where a plurality of film packages are packed during transportation or storage, the same number of film packages cannot be packed (loading efficiency is lowered).

The invention provides a sheet collection package capable of improving productivity of a stored sheet package and maintaining loading efficiency.

< Method of solving the problems >

A sheet collection package comprising: a sheet package; and a package box made of cardboard, accommodating a plurality of the sheet packages, wherein the sheet packages have: a sheet laminate having a rectangular parallelepiped shape and formed by laminating a plurality of sheets; a packaging bag made of a resin film, which houses the sheet laminate; and a take-out port formed in a top surface of the packaging bag for drawing the sheet, wherein the sheet laminate is formed by laminating the sheet by a multi-bench folder, and the sheet package is formed by candy-packaging the sheet laminate, and a hardness (ARH) in a height direction of an aggregate of 5 sheet packages laminated in the height direction of the sheet package is 2.8% or more and 7.2% or less.

In this specification, a multi-table folder means an apparatus for manufacturing a web by alternately overlapping sheets while folding the sheets with one folding plate. In a sheet laminate in which sheets are laminated by a multi-table folder, when the sheet laminate is rectangular parallelepiped, a pair of long side surfaces are likely to be irregular (folds of the sheets are likely to be offset in the laminating direction).

The candy package is a package in which both ends of a tubular film are folded, adhered or sealed.

The hardness (ARH) in the height direction of an aggregate of 5 sheet packages stacked in the height direction of the sheet package means a ratio [ (a-B)/(a) ] x 100 (%) of a difference (a-B) between a height (a) before load and a height (B) after load of the aggregate when a weight (for example, 600 g) is placed on the upper surface of the aggregate to load the aggregate.

In the first aspect, since the sheet laminate housed in the packaging bag made of the resin film is laminated by the multi-bench folder having a high sheet feeding capability, the productivity of the sheet package constituting the sheet-aggregate package can be improved.

In the first aspect, the sheet laminate is packaged in a candy state, and the sheet laminate is stored in the package bag in a state in which the sheet laminate is packed in any one of the height direction of the sheet laminate, the direction in which the long side surfaces of the sheet laminate face each other, and the direction in which the short side surfaces of the sheet laminate face each other. Thus, the sheet package can be accommodated in the package box with a pressing force (compression) applied to the entire sheet laminate.

In the first aspect, since the sheet laminate is stored in the packaging bag in a state where the long side surfaces of the sheet laminate are in opposition, the pressing force can be applied to the long side surfaces of the sheet laminate, which are easily uneven, laminated by the multi-table folding machine. Therefore, the capacity of each sheet package stored in the package box can be prevented from increasing in the direction in which the long side surfaces of the sheet laminate face each other, and the loading efficiency of the sheet aggregate package can be maintained.

In addition, in the first aspect, as a result of applying the pressing force to the uneven long side face, the sheet laminate is expanded in the height direction, but when the candy type package is performed, since it is also tightened in the height direction of the sheet laminate, the pressing force can be applied in the height direction of the sheet laminate. Therefore, the capacity of each sheet package housed in the package box can be prevented from increasing in the height direction of the sheet laminate, and the loading efficiency of the sheet aggregate package can be maintained.

In the first aspect, the hardness (ARH) of the aggregate of the sheet package in the height direction is 2.8% or more and 7.2% or less, and therefore, the sheet package is in a state in which an appropriate pressing force is applied to each sheet package contained in the package. Therefore, even if the long side surfaces of the sheet laminate are uneven, the long side surfaces of the sheet laminate housed in the packaging bag are not crushed, and thus the sheet take-out property can be prevented from being lowered when the sheet laminate is used.

A second aspect of the present invention provides the sheet set package according to the first aspect, wherein the sheet laminate is laminated in such a manner that the direction in which the sheets are extracted becomes the CD direction.

In the present specification, the CD direction means a direction orthogonal to the flow direction (MD direction) of the fibers constituting the sheet. The "direction in which the sheet is extracted" means that the moving direction of the sheet when the sheet is extracted from the extraction opening of the sheet package is the CD direction, and the moving direction of the sheet in the laminated state in the package is also the CD direction.

A sheet laminate formed by laminating sheets by a multi-table folder generally constitutes a sheet laminate formed by laminating such that the direction in which the sheets are extracted becomes the CD direction.

In the second aspect, since the sheet laminated body laminated in such a manner that the direction in which the sheets are extracted becomes the CD direction is laminated by the multi-table folder having high feeding capability, the productivity of each sheet package constituting the sheet aggregate package can be improved.

A third aspect of the present invention provides the sheet set package according to the first or second aspect, wherein the sheet package is formed by housing the sheet laminate in the package bag such that a lamination direction of the sheet laminate becomes a height direction of the sheet package.

In the third aspect, by making the lamination direction of the sheet laminate be the height direction of the sheet package, the pressing force can be reliably applied to the uneven long side surface of the sheet laminate laminated by the multi-table folding machine when the sheet laminate is candy-packaged. In addition, as a result of applying the pressing force to the uneven long side, the pressing force can be reliably applied also in the height direction in which the sheet laminate is expanded.

A fourth aspect of the present invention provides the sheet set package according to the third aspect, wherein the sheet packages are housed in the package in a plurality of layers so that a height direction of the sheet packages becomes a height direction of the package.

In the fourth aspect, the height direction of the sheet package is set to the height direction of the package, and the lamination direction of the sheet laminate is set to the height direction of the package. Further, since the sheet package is pressed in the height direction of the sheet laminate, even if the plurality of sheet packages are stacked and stored in the package so that the height direction of the sheet package becomes the height direction of the package, the package can be prevented from bulging in the height direction of the package.

A fifth aspect of the present invention provides the sheet set package according to the third aspect, wherein the sheet packages are housed in the package box in a plurality of rows in a direction in which long sides of the sheet laminate face each other.

In the fifth aspect, since the sheet package is applied with the pressing force in the direction in which the long side faces of the sheet laminate face each other, even if the plurality of sheet packages are housed in the package in an aligned manner in the direction in which the long side faces of the sheet laminate face each other, the package can be prevented from bulging in the direction orthogonal to the height direction of the package.

A sixth aspect of the present invention is a sheet package housed in the package box of the sheet aggregate package according to any one of the first to fifth aspects.

In the sixth aspect, by constituting the sheet-set package from a sheet package, the effect of the sheet package used in the sheet-set package can be directly obtained.

< Effect of the invention >

According to an aspect of the present invention, it is possible to provide a sheet collection package capable of improving productivity of a housed sheet package while maintaining loading efficiency.

Drawings

Fig. 1 is a view showing a sheet package (individual package).

Fig. 2 is a view showing a sheet laminate housed in a sheet package (individual package).

Fig. 3 is an enlarged view of the sheet laminate before packaging, as seen from one side.

Fig. 4 is a view showing a state (before load) in which the hardness (ARH) of the aggregate of the sheet package is measured.

Fig. 5 is a view showing a state (after load) in which the hardness (ARH) of the aggregate of the sheet package is measured.

Fig. 6 is a view showing a sheet collection package.

Fig. 7 is an enlarged view of the sheet laminate before packaging, as seen from one side.

Description of the reference numerals

100. Sheet package

10. Sheet laminate

10A sheet

11. Top surface

12. Bottom surface

13. 14 Long sides

15. 16 Short sides

20. Packaging bag (GY)

21. Top surface

21A take-out port

22. Bottom surface

23. Front face

24. Back surface

25. 26 Side surfaces

SD lamination direction

30. Aggregate body

31. Top surface

40. Packing box

41. Top surface

42. Bottom surface

43. Front face

44. Back surface

45. 46 Side surfaces

60. Acrylic plate

61. 62, 63, 64 Marks

70. Weight piece

200. And (3) collecting the package of the sheet.

Detailed Description

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like parts in the drawings are denoted by like reference numerals, and description thereof is omitted. In addition, the scale of each component in each figure may be different from the actual scale.

In the present specification, the direction of the drawing is described using a three-dimensional orthogonal coordinate system of 3-axis directions (X-direction, Y-direction, Z-direction). In each figure, the left-right direction (longitudinal direction of the sheet package or the sheet aggregate package) is referred to as an X direction, the front-back direction (width direction of the sheet package or the sheet aggregate package) is referred to as a Y direction, and the up-down direction (height direction of the sheet package or the package) is referred to as a Z direction.

In the present specification, variations in the degree to which the actions and effects of the embodiments are not impaired are allowed in each direction. In addition, orthogonal may include substantially orthogonal.

< Sheet packaging body >

Fig. 1 shows a sheet package (single package) according to an embodiment. Fig. 2 shows a sheet laminate housed in a sheet package (individual package). Fig. 3 is an enlarged view of the sheet laminate before packaging, as seen from one side.

The sheet package 100 of the present embodiment includes a sheet laminate 10 and a package bag 20. In the present embodiment, the sheet laminate 10 is housed in the package bag 20 such that the lamination direction (SD direction) of the sheet 10A is the height direction (Z direction) (fig. 1 and 2). Note that the sheet package 100 is an example of the sheet package of the present embodiment.

The sheet laminate 10 is laminated from a plurality (or groups) of sheets 10A (fig. 2). The sheet laminate 10 has a rectangular parallelepiped shape. The sheet laminate 10 can draw out the sheets 10A one by one (or group by group) through the take-out port 21A formed on the top surface 21 of the package 20 (refer to fig. 1).

The material of the sheet 10A is not particularly limited, and is, for example, paper, nonwoven fabric, cloth, or the like, and tissue paper is preferable. When the sheet is tissue paper, the pulp composition may use a composition known in tissue paper. The blending ratio of the pulp may be, for example, 50 mass% or more, preferably 90 mass% or more, and more preferably 100 mass%.

The basis weight of the sheet 10A is not particularly limited, but is preferably 5g/m ² or more and 80g/m ² or less in the case of paper, and preferably 20g/m ² or more and 100g/m ² or less in the case of nonwoven fabric, depending on the number of layers. Note that the basis weight is measured in accordance with the specification of JIS P8124 (2011).

The thickness of the sheet 10A is not particularly limited, and a paper thickness measured in the environment of JIS P8111 (1998) can be used. For example, in the case where the sheet is a tissue paper, the tissue paper may have a paper thickness of 50 μm or more and 500 μm or less, preferably 60 μm or more and 330 μm or less per 1 layer (two layers in the case of two layers).

Note that, from the viewpoint of extracting the sheets 10A one by one or one by one, the sheet laminate 10 is preferably sheets laminated alternately with each other in a state where the respective sheets 10A are folded (so-called pop-up sheet laminate 10). The form of the sheet laminate 10 is not limited to the form that can be extracted in a pop-up manner, and may be a form in which a plurality (or a plurality of sets) of sheets 10A are simply laminated, or a form in which each sheet 10A is folded.

The sheet laminate 10 may have a length in the longitudinal direction (X direction) of the sheet package 100 of 155mm to 230mm, a length in the width direction or depth direction (Y direction) orthogonal to the longitudinal direction (X direction) of the sheet package 100 of 90mm to 120mm, and a thickness in the height direction or thickness direction (Z direction) of 30mm to 100 mm.

The mode of the sheet 10A constituting the sheet laminate 10 is not particularly limited, and can be applied to sanitary tissue paper such as paper towel, toilet paper, kitchen paper, and towel paper, for example. Note that sanitary tissue papers including tissue papers, towel papers, and the like also include sanitary tissue papers including a moisturizing component (e.g., an emulsion tissue, and the like). The use of the sheet 10A is not particularly limited, and the sheet may be applied to any of industrial use, household use, and portable use. Among these, the paper is preferably used for household tissue paper.

The sheet laminate is formed by laminating the sheet 10A with a multi-machine table folder. Here, a multi-machine table folder (inter-folder) is a device for manufacturing a web by alternately overlapping sheets while folding the sheets with one folding plate.

In the sheet laminate 10 formed by laminating sheets by a multi-machine table folder, when the sheet laminate 10 is rectangular parallelepiped, as shown in fig. 2, the pair of long side surfaces 13, 14 as viewed from one short side surface 15 of the sheet laminate 10 in the longitudinal direction (X direction) are likely to be irregular (folds of the sheets are likely to be offset in the laminating direction).

The sheet laminate 10 is laminated such that the direction in which the sheet 10A is extracted is the CD direction (the direction orthogonal to the flow direction (MD direction) of the fibers constituting the sheet 10A).

The direction in which the sheet 10A is extracted becomes the CD direction, which means that the moving direction of the sheet 10A when the sheet 10A is extracted from the extraction port 21A of the sheet package 100 is the CD direction, and the moving direction of the sheet 10A is also the CD direction in the state of the sheet laminate 10 in the sheet package 100.

The sheet laminate 10 laminated such that the drawing direction of the sheet 10A is the CD direction is preferably laminated by a multi-table folder. The sheet laminate 10 formed by laminating sheets by a multi-table folder generally constitutes a sheet laminate formed by laminating such that the direction in which the sheets are extracted becomes the CD direction.

Note that the sheet laminate 10 laminated by the conventional rotary folding machine is generally a sheet laminate laminated so that the direction in which the sheet is extracted becomes the MD direction. In addition, in the sheet laminate 10 laminated by the rotary folding machine, when the sheet laminate 10 is rectangular parallelepiped, as shown in fig. 7, the pair of long side surfaces 13', 14' as viewed in the longitudinal direction (X direction) from one short side surface 15' of the sheet laminate 10 are easily aligned (the crease of the sheet is not easily deviated in the laminating direction SD).

The package 20 houses the sheet laminate 10.

The package bag 20 has a top surface 21, a bottom surface 22, a front surface 23, a back surface 24, a side surface 25, and a side surface 26 in a state where the sheet laminate 10 is accommodated. In the package bag 20, the top surface 21 and the bottom surface 22 face each other in the up-down direction (Z direction), the front surface 23 and the back surface 24 face each other in the front-back direction (Y direction), and the side surface 25 and the side surface 26 face each other in the left-right direction (X direction). The side surfaces 25 and 26 are connected to the top surface 21, the bottom surface 22, the front surface 23 and the back surface 24 (see fig. 1).

A take-out port 21A is provided in the top surface 21 of the package 20. The take-out port 21A is configured to be able to draw out the sheet 10A. The form of the outlet 21A is not particularly limited, and may be constituted by a continuous slit, an elongated opening, or the like, for example. The shape of the opening is not particularly limited, and may be a straight line, a wavy line, a rectangle, an ellipse, a dumbbell, or the like. Note that these cuts or openings may be formed by tearing perforations (intermittent cuts) (see fig. 1).

The length of the outlet 21A in the longitudinal direction (X direction) is not particularly limited, and is, for example, 40% or more and 100% or less, preferably 45% or more and 90% or less, and more preferably 50% or more and 80% or less, with respect to the entire length of the top surface 21 of the package bag 20 of the sheet package 100 in the longitudinal direction (X direction).

The package 20 is made of a resin film. The resin film constituting the package bag 20 is flexible. The resin used for the resin film is not particularly limited, and for example, polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polystyrene (PS), polyvinyl chloride (PVC), ethylene-vinyl acetate copolymer (EVA), polyamide (PA) and the like can be used. As the polyethylene, high density polyethylene, low density polyethylene, or the like can be used.

It is noted that polyethylene, polypropylene, polyethylene terephthalate and the like are preferable from the viewpoints of softness, excellent handleability, high sealability at the time of heat sealing, low cost and the like. Further, polyethylene is preferable in terms of being odorless, excellent in water resistance and chemical resistance, and capable of mass production at low cost. Polypropylene is preferable from the viewpoints of being strong, easy to form, excellent in color development during printing, and capable of imparting gloss.

Note that as a material for forming the package bag 20, a biodegradable material (biodegradable plastic such as polylactic acid) or a biomass material (renewable bio-derived organic resources such as a biomass film, excluding fossil resources) may be used.

The form of the resin film forming the package bag 20 is not particularly limited, and may be a single-layer film in which the above resins are formed in a single layer, a laminated film in which the above resins are laminated, or a mixed film in which a mixture of the above 2 or more resins is formed.

The thickness of the resin film forming the package bag 20 is not particularly limited, but is preferably 20 μm or more and 100 μm or less, more preferably 25 μm or more and 70 μm or less. By setting the thickness of the resin film to 20 μm or more, sufficient strength of the package bag 20 as the storage sheet 10A can be ensured. Further, by setting the thickness of the resin film to 100 μm or less, flexibility and lightweight properties of the package bag 20 can be ensured, and cost can be suppressed.

The sheet package 100 is formed by candy-type packaging the sheet laminate 10. Here, the candy package is a package form in which both ends of a tubular resin film are folded and sealed (sealed). Candy packages facilitate control of compaction of the sheet laminate 10 (see fig. 1).

In the candy package, the sheet laminate 10 is wrapped with a resin film so as to be wound into a tube shape with both ends open in the longitudinal direction (X direction), and the portions overlapping in the winding direction are bonded by a welding process or an adhesive. Next, both ends in the longitudinal direction (X direction) of the tubular resin film are folded into the end face side of the sheet laminate 10, and at least the leading edge portions of the substantially triangular or substantially trapezoidal pieces formed at this time are overlapped with each other, and the tubular opening is sealed by a welding process or an adhesive bonding. In the present embodiment, both ends (side surfaces 25 and 26 of the package bag 20) of the tubular resin film are folded and sealed (see fig. 1).

In the sheet package 100, the sheet laminate 10 is housed in the package 20 such that the lamination direction SD of the sheet laminate 10 is the height direction (Z direction) of the sheet package 100. Specifically, the top surface 11, the bottom surface 12, the long side surface 13, the long side surface 14, the short side surface 15, and the short side surface 16 of the sheet laminate 10 stored in the package bag 20 are opposed to the top surface 21, the bottom surface 22, the front surface 23, the back surface 24, the side surface 25, and the side surface 26 of the package bag 20, respectively.

In the sheet package 100, when the sheet laminate 10 is packaged in a candy mode, the sheet laminate 10 is housed in the package bag 20 in a state where the sheet laminate 10 is entirely tightened.

Specifically, by packaging the sheet laminate 10 with candy, a pressing force (compression) C1 is applied in the height direction (Z direction) of the sheet laminate 10, a pressing force (compression) C2 is applied in the direction (Y direction) in which the long side surfaces 13, 14 of the sheet laminate 10 face each other, and a pressing force (compression) C3 is applied in the direction (X direction) in which the short side surfaces 15, 16 of the sheet laminate face each other.

In the sheet package 100, the stiffness (ARH) in the height direction (Z direction) of the aggregate 30 formed by stacking 5 sheet packages 100 in the height direction (Z direction) of the sheet package 100 is 2.8% or more and 7.2% or less, preferably 3.0% or more and 7.0% or less, and more preferably 3.2% or more and 6.8% or less.

Here, the hardness (ARH) in the height direction (Z direction) of the aggregate 30 in which 5 sheet packages 100 are stacked in the height direction (Z direction) of the sheet packages 100 means a ratio [ (a-B)/(a) ] x 100 (%) of a difference (a-B) between the height (a) before load and the height (B) after load of the aggregate 30 when a weight (for example, 600 g) is placed on the upper surface of the aggregate 30 to perform load.

Specifically, the state in which the acryl plate 60 having the marks (marks 61 to 64) at 4 positions is placed on the top surface 31 of the aggregate 30 (the aggregate formed by laminating the 5 sheet package bodies 100) is set as the pre-load of the aggregate 30 (fig. 4). Further, a state in which 600g of the weight 70 was placed from above the acrylic plate 60 was set as a load on the aggregate 30 (fig. 5). Then, the average heights before and after the load of the 4 sites with the marks 61 to 64 were substituted into the above formula to calculate the hardness (ARH).

The hardness (ARH) of the aggregate 30 can be controlled by adjusting the pressing forces C1 to C3 when the sheet laminate 10 is candy-packed.

< Sheet Assembly Package >

Fig. 6 shows a sheet collection package. The sheet set package 200 has a plurality of sheet packages 100 and a package box 40. In the present embodiment, 30 sheet packages 100 are stored in the packing box 40.

The plurality of sheet package bodies 100 are stacked and stored in the package box 40 such that the height direction (Z direction) of the sheet package bodies 100 becomes the height direction (Z direction) of the package box. In the present embodiment, an assembly 30 (fig. 6) is formed by stacking 5 sheet packages 100 in the vertical direction (Z direction) so that the top surface 21 and the bottom surface 22 of the package bag 20 of the sheet package 100 face each other.

The sheet package 100 is stored in the package box 40 in a plurality of rows in the direction (Y direction) in which the long side surfaces 13 and 14 of the sheet laminate 10 face each other. In the present embodiment, the 3 assemblies 30 are stored in the package box 40 so as to be aligned in the front-rear direction (Y direction) of the package box 40 such that the long side surface 14 of the sheet laminate 10 faces the long side surface 13 of the other sheet laminate 10 (fig. 6).

The sheet package 100 is stored in the package box 40 in a plurality of rows in the direction (Y direction) in which the short side surfaces 15 and 16 of the sheet laminate 10 face each other. In the present embodiment, the 2 assemblies 30 are stored in the packing box 40 so as to be aligned in the left-right direction (X direction) of the packing box 40 such that the short side surface 16 of the sheet laminate 10 faces the short side surface 15 of the other sheet laminate 10 (fig. 6).

Note that the number of sheet packages 100 stored in the package box 40 is not limited, and may be 2 or more. However, from the viewpoint of using existing conveying equipment, the number of sheet packages 100 stored in the packing box 40 is preferably 10 or more and 100 or less, more preferably 20 or more and 36 or less.

The package 40 is made of cardboard. The cardboard constituting the package 40 has a liner attached to one or both sides of the corrugated core. The cardboard is not particularly limited, and examples thereof include single-sided cardboard, double-sided cardboard (double wall corrugated fiberboard), and three-layer double-sided cardboard (TRIPLE WALL corrugated fiberboard). In the present embodiment, a-type cardboard is used as the cardboard.

The size of the package 40 is not particularly limited, and may be changed according to the number of the sheet packages stored.

In a state where a plurality of sheet packages 100 are stored, the package box 40 has a top surface 41, a bottom surface 42, a front surface 43, a back surface 44, a side surface 45, and a side surface 46. In the packing box 40, the top surface 41 and the bottom surface 42 face each other in the up-down direction (Z direction), the front surface 43 and the back surface 44 face each other in the front-back direction (Y direction), and the side surface 45 and the side surface 46 face each other in the left-right direction (X direction). Side 45 and side 46 are connected to top 41, bottom 42, front 43 and back 44 (see fig. 6).

The top surface 41 of the package box 40 is formed of a pair of flaps (flap) and a cover (both not shown), and is an opening that is opened before the plurality of sheet packages 100 are stored. The opening of the top surface 41 is closed by a pair of flaps and a cover after receiving the plurality of sheet packages 100.

In the sheet-set package 200 of the present embodiment, as described above, since the sheet laminate 10 housed in the package bag 20 made of the resin film is laminated by the multi-table folding machine having high feeding capability of the sheet 10A, the productivity of the sheet package 100 constituting the sheet-set package 200 can be improved.

In the present embodiment, as described above, by packaging the sheet laminate 10 with candy, the sheet laminate 10 is stored in the package bag 20 in a state where any one of the height direction (Z direction) of the sheet laminate 10, the direction in which the long side surfaces 13, 14 of the sheet laminate 10 face each other (Y direction), and the direction in which the short side surfaces 15, 16 of the sheet laminate 10 face each other (X direction) is tightened. Thereby, the sheet package 100 can be stored in the package box 40 in a state where the pressing force (compression) is applied to the entire sheet laminate 10.

In the present embodiment, as described above, since the sheet laminate 10 is stored in the package bag 20 in a state of being tightened in the direction (Y direction) in which the long side surfaces 13, 14 of the sheet laminate 10 face each other, the pressing force can be applied to the long side surfaces 13, 14 of the sheet laminate 10 which are easily irregular and laminated by the multi-table folding machine. Therefore, the capacity of each sheet package 100 stored in the packing box 40 can be prevented from increasing in the direction (Y direction) in which the long side surfaces 13, 14 of the sheet laminate 10 face each other, and the loading efficiency of the sheet aggregate package 200 can be maintained.

In the present embodiment, as described above, the sheet laminate 10 expands in the height direction (Z direction) as a result of the pressing force being applied to the misaligned long side surfaces 13, 14, but when the candy type package is being packed, the sheet laminate 10 is also tightened in the height direction (Z direction), so that the pressing force can be applied also in the height direction (Z direction) of the sheet laminate 10. Therefore, the capacity of each sheet package 100 stored in the packing box 40 can be prevented from increasing even in the height direction (Z direction) of the sheet laminate 10, and the loading efficiency of the sheet aggregate package 200 can be maintained.

In the present embodiment, as described above, the hardness (ARH) of the aggregate 30 of the sheet package 100 in the height direction (Z direction) is set to 2.8% or more and 7.2% or less, whereby an appropriate pressing force is applied to each sheet package 100 stored in the packing box 40. Therefore, even if the long side surfaces 13, 14 of the sheet laminate 10 are not aligned, the long side surfaces 13, 14 of the sheet laminate 10 housed in the package bag 20 are not crushed, and thus the removal of the sheet 10A can be prevented from being reduced when the sheet package 100 is used.

In the present embodiment, as described above, since the sheet laminated body 10 laminated so that the direction in which the sheet 10A is extracted becomes the CD direction is laminated by the multi-table folding machine having high feeding capability, the productivity of each sheet package 100 constituting the sheet aggregate package 200 can be improved.

In the present embodiment, as described above, by making the lamination direction SD of the sheet laminate 10 the height direction (Z direction) of the sheet package 100, the sheet laminate 10 can reliably exert pressing force on the uneven long side surfaces 13, 14 of the sheet laminate 10 laminated by the multi-table folder when packaged with candy. In addition, as a result of applying the pressing force to the uneven long side surfaces 13, 14, the pressing force can be reliably applied also in the height direction (Z direction) in which the sheet laminate 10 expands.

In the present embodiment, as described above, the height direction (Z direction) of the sheet package 100 is the height direction (Z direction) of the package 40, and the lamination direction SD of the sheet laminate 10 is the height direction (Z direction) of the package 40. Further, since the sheet package 100 is pressed in the height direction (Z direction) of the sheet laminate 10, even if a plurality of sheet packages 100 are stacked and stored in the package 40 so that the height direction (Z direction) of the sheet package 100 becomes the height direction (Z direction) of the package 40, the package 40 can be prevented from bulging in the height direction (Z direction) of the package 40.

In the present embodiment, since the sheet package 100 is pressed in the direction (Y direction) in which the long side surfaces 13, 14 of the sheet laminate 10 face each other as described above, even if the plurality of sheet packages 100 are stored in the packing box 40 in a row in the direction (Y direction) in which the long side surfaces 13, 14 of the sheet laminate 10 face each other, the packing box 40 can be prevented from bulging in the direction orthogonal to the height direction (Z direction) of the packing box 40.

Further, since the sheet package 100 of the present embodiment constitutes the sheet collection package 200 of the present embodiment as described above, the effect of the sheet package 100 for the sheet collection package 200 can be directly obtained.

Specifically, in the sheet package 100 of the present embodiment, as described above, the sheet laminate 10 housed in the package bag 20 made of the resin film is laminated by the multi-bench intermediate laminate having a high feeding capability of the sheet 10A, so that the productivity of the sheet package 100 constituting the sheet aggregate package 200 can be improved.

In the sheet package 100 of the present embodiment, as described above, the sheet laminate 10 is packaged in the package bag 20 in a state where the sheet laminate 10 is packed in any one of the height direction (Z direction) of the sheet laminate 10, the direction in which the long side surfaces 13 and 14 of the sheet laminate 10 face each other (Y direction), and the direction in which the short side surfaces 15 and 16 of the sheet laminate 10 face each other (X direction). Thereby, the sheet package 100 can be stored in the package box 40 in a state where the pressing force (compression) is applied to the entire sheet laminate 10.

In the sheet package 100 according to the present embodiment, since the sheet laminate 10 is stored in the packaging bag 20 in a state of being packed in the direction in which the long side surfaces 13, 14 of the sheet laminate 10 face each other (Y direction) as described above, the pressing force can be applied to the long side surfaces 13, 14 of the sheet laminate 10 which are likely to be irregular and laminated in the multi-stage folding machine. Therefore, the capacity of each sheet package 100 stored in the packing box 40 can be prevented from increasing in the direction (Y direction) in which the long side surfaces 13, 14 of the sheet laminate 10 face each other, and the loading efficiency of the sheet aggregate package 200 can be maintained.

In the sheet package 100 of the present embodiment, as described above, the sheet laminate 10 expands in the height direction (Z direction) as a result of the pressing force being applied to the uneven long side surfaces 13, 14, but when packaged in a candy type, the pressing force can be applied to the sheet laminate 10 in the height direction (Z direction) because the sheet laminate 10 is also tightened in the height direction (Z direction). Therefore, the capacity of each sheet package 100 stored in the packing box 40 can be prevented from increasing even in the height direction (Z direction) of the sheet laminate 10, and the loading efficiency of the sheet aggregate package 200 can be maintained.

In the sheet package 100 according to the present embodiment, as described above, the hardness (ARH) of the aggregate 30 of the sheet package 100 in the height direction (Z direction) is set to 2.8% or more and 7.2% or less, whereby an appropriate pressing force is applied to each sheet package 100 stored in the packing box 40. Therefore, even if the long side surfaces 13, 14 of the sheet laminate 10 are not aligned, the long side surfaces 13, 14 of the sheet laminate 10 housed in the package bag 20 are not crushed, and thus the removal of the sheet 10A can be prevented from being reduced when the sheet package 100 is used.

In the sheet package 100 according to the present embodiment, as described above, since the sheet laminate 10 laminated so that the direction in which the sheet 10A is extracted is the CD direction is laminated by the multi-table folding machine having high feeding capability, the productivity of each sheet package 100 constituting the sheet aggregate package 200 can be improved.

In the sheet package 100 according to the present embodiment, as described above, by setting the lamination direction SD of the sheet laminate 10 to the height direction (Z direction) of the sheet package 100, the sheet laminate 10 can reliably apply pressing force to the uneven long side surfaces 13, 14 of the sheet laminate 10 laminated by the multi-bench folder when the sheet laminate 10 is packaged with candy. As a result of applying the pressing force to the uneven long side surfaces 13, 14, the pressing force can be reliably applied also in the height direction (Z direction) in which the sheet laminate 10 bulges.

Examples (example)

The present invention will be described in more detail with reference to examples. The evaluation of examples and comparative examples was performed under the following conditions.

Sheet packaging (Single packaging)

A sheet package 100 (single package) was prepared (see fig. 1 and 2), and the sheet package 100 was formed by wrapping a sheet laminate 10 of paper towels (sheet laminate) formed by alternately folding and ejecting sheets 10A in a pop-up type group by group in a package bag 20 (a dumbbell-shaped take-out port 21A formed in a top surface 21) formed of polyethylene having a thickness of about 40 μm.

[ Productivity ]

The productivity of the sheet package was evaluated based on the folding manner of the sheet laminate. The removability was evaluated according to the following criteria.

(Evaluation criteria)

And (2) the following steps: high productivity (in the case of lamination by a multi-bench folder (bench type))

X: low productivity (in the case of lamination by a rotary folder (rotary type))

[ Compaction Rate (compactibility) ]

The ratio of the height after packaging to the height before packaging of the individual packages was measured as the compaction ratio. The compactibility was evaluated based on the compaction ratio. The evaluation of the compactness was performed according to the following criteria.

(Evaluation criteria)

And (2) the following steps: good (the compaction rate is 82% -91%)

X: poor (compaction less than 82% (over-compaction) or compaction greater than 92% (over-loosening))

[ Hardness of Aggregate (ARH) ]

The stiffness (ARH) in the height direction of the aggregate 30 in which 5 sheet packages 100 were stacked in the height direction (Z direction) of the sheet packages 100 was measured. In the measurement of the hardness (ARH), marks 61 to 64 were placed on the center portions of four sides of the sub-force plate 60 having a thickness (Z direction) of 2mm, a longitudinal direction (Y direction) of 165mm, and a transverse direction (X direction) of 320mm, the sub-force plate was placed on the top surface 31 of the aggregate 30, the heights of four portions (marks 61 to 64) from the ground on which the aggregate 30 was placed to the sub-force plate 60 were measured, and the average value of the heights to the four portions was taken as the height HA before loading (fig. 4). A weight 70 weighing 600g was placed in the center of the acrylic plate 60, and the heights from the ground surface on which the aggregate 30 was placed to four positions (marks 61 to 64) of the acrylic plate 60 were measured, and the average of the heights to the four positions was used as the post-load height HB. The height HB after the load is subtracted from the height HA before the load to determine the press-in amount DH. Then, (press-in amount DH/height HA before load). Times.100 was taken as hardness (ARH).

[ Removability ]

Breakage of the sheets 10A of the sheet laminate 10 was confirmed when the sheets 10A were extracted from the individual packages (the extraction openings 21A were formed on the top surface 21 of the package bag 20) in a group-by-group manner. The removability was evaluated according to the following criteria.

(Evaluation criteria)

And (2) the following steps: good (no sheet damage during taking out)

X: failure (sheet breakage during taking out)

For examples 1 to 4 and comparative examples 1 to 6, the basis weight, the paper thickness (two layers), the number of layers, the number of groups, the sheet size (machine direction (MD direction), cross direction (CD direction)), the sheet area, the web volume (height), the compaction ratio, the individual package size (width, depth and height), the containing amount, the weight in the package, the package density, the folding manner (folding) and the package form of the web, and the 5 package heights of the collective packages, the height of 600g of the load, the height difference, the hardness ARH, and the removability of each individual package are shown in table 1, respectively.

(Table 1)

As shown in table 1, when the hardness (ARH) in the height direction (Z direction) of the single package assembly 30 in which the sheet laminated body laminated by the multi-bench folder was packaged with candy was 2.8% or more and 7.2% or less, the productivity of the single package assembly was high, and the compactness and the removability were both good (examples 1 to 4).

On the other hand, when the hardness (ARH) in the height direction (Z direction) of the aggregate 30 exceeds 7.2%, the compactness of the individual package is poor (comparative examples 1, 2), whereas when it is less than 2.8%, both the compactness and the removability of the individual package are poor (comparative example 3). In addition, the productivity of the assembly 30 of individual packages in which the sheet laminated body laminated by the rotary folding machine is packaged is low (comparative examples 4 to 6). Further, the assembly 30 of pillow-packed individual packages was not pressed with a pressing force, and thus was not compact (comparative example 6).

While the embodiments of the present invention have been described above, the present invention is not limited to the specific embodiments, and various modifications and changes can be made within the scope of the invention described in the claims.

Claims (6)

1. A sheet collection package comprising:

A sheet package; and

A package box made of cardboard and accommodating a plurality of the sheet packages,

The sheet package has:

a sheet laminate having a rectangular parallelepiped shape and formed by laminating a plurality of sheets;

a packaging bag made of a resin film, which houses the sheet laminate; and

A take-out port formed on the top surface of the package for withdrawing the sheet,

The sheet laminate is formed by laminating the sheets by a multi-machine table folder,

The sheet package is formed by candy-type packaging the sheet laminate,

In the sheet package, the stiffness (ARH) in the height direction of an aggregate of 5 sheet packages stacked in the height direction of the sheet package is 2.8% or more and 7.2% or less.

2. The sheet set package according to claim 1, wherein,

The sheet laminate is laminated such that the direction in which the sheet is extracted becomes the CD direction.

3. The sheet set package according to claim 1, wherein,

The sheet package is formed by storing the sheet laminate in the packaging bag such that the lamination direction of the sheet laminate is the height direction of the sheet package.

4. The sheet set package according to claim 3, wherein,

The sheet package is stored in the packing box in a plurality of stacked manner such that the height direction of the sheet package is the height direction of the packing box.

5. The sheet set package according to claim 3, wherein,

The sheet package is stored in the package box in a plurality of rows in a direction in which long sides of the sheet laminate face each other.

6. A sheet package housed in the package box of the sheet collection package according to any one of claims 1 to 5.