JP7375361B2 - Sheet bundle packaging - Google Patents

Description

The present invention relates to a sheet bundle package in which a plurality of sheets are housed in the package.

Conventionally, products are known in which a plurality of sheets are taken out one by one using a pop-up method. In this product, halves of folded sheets are stacked alternately with halves of other sheets.
It is also known that in a sheet bundle in which the sheets are folded as described above, the bottom surface is constituted only by the lower half of the lowermost sheet that is folded downward (see Patent Document 1).

Japanese Patent Application Publication No. 2019-59503

By the way, in the process of manufacturing the above-mentioned product, a sheet bundle is conveyed by a conveyor, and the conveyed sheet bundle is housed in a package. The sheet bundle is conveyed with its bottom surface placed on the conveyance surface of the conveyor.
However, as mentioned above, when the lower half of the sheet bundle that forms the bottom surface rubs against the conveyor surface due to vibrations during conveyance or changes in conveyance speed, wrinkles and twists occur on the bottom surface of the sheet bundle. There is a risk. If a bundle of sheets is housed in a package with the bottom surface disturbed by wrinkles or twists visible, the appearance of the package containing the bundle of sheets as a product deteriorates.
Therefore, there is room for improvement in ensuring the appearance of the sheet bundle package.

The present sheet bundle package was devised in view of the above-mentioned problems, and one of the purposes is to ensure good appearance. In addition, this purpose is not limited to this purpose, and the present invention also includes operations and effects that are derived from each configuration shown in the "Details of Carrying Out the Invention" described later and that cannot be obtained with conventional techniques. It can be positioned for other purposes.

The sheet bundle package disclosed herein includes a sheet made of paper towels that is folded in two along folding lines, and a sheet bundle in which the sheets are stacked vertically, which is taken out using a pop-up method, and a sheet bundle in which the sheets are stacked vertically. and a packaging body that accommodates the sheet bundle in a state where the bottom surface is visible from the outside.
The sheet bundle forms a part of the bottom surface, and includes a first bottom piece that is folded downward along the folding line on a first bottom sheet that is arranged lowest among the sheets; It has a regulating edge that is an edge to be sandwiched and is an edge along the folding line, forms a part other than the part of the bottom surface, and is arranged second from the lowest among the sheets. and a second bottom piece folded downward along the folding line in the second bottom sheet.
The first lower piece has a folded piece folded back along a folding line along the folding line.

According to the sheet bundle package of the present invention, good appearance can be ensured.

FIG. 2 is a perspective view showing a package containing a sheet bundle. FIG. 2 is a perspective view illustrating a stacked structure of a sheet bundle. FIG. 3 is a plan view showing the unfolded first bottom sheet. FIG. 3 is a schematic diagram illustrating the manufacturing process of a package containing a sheet bundle.

Hereinafter, a package containing a sheet bundle as an embodiment will be described.
The sheet bundle package of this embodiment is a product in which a bundle of sheets is housed in a package.
The sheet is composed of a paper towel (also referred to as "kitchen paper", "paper rag", "towel paper", "cloth", "wipe", etc.). The sheet bundle is a sheet bundle (laminate) that is folded so that each sheet can be taken out in a pop-up manner. The package is a package that wraps the sheet bundle in a state where the bottom surface of the sheet bundle is visible from the outside. Here, a package in which at least a portion of the sheet bundle facing the bottom surface is transparent or semitransparent will be taken as an example. Such a packaging body can be formed from a resin film having light transmittance.

In this embodiment, an example will be given in which the following directions I and II correspond as shown in Table 1 below, and it is assumed that the completed sheet bundled package is placed on a horizontal surface.
・Direction I: Direction in a semi-finished product in the process of manufacturing a package containing sheet bundles. ・Direction II: Direction in a finished product of a package containing sheet bundles.

The MD (Machine Direction) direction is the direction in which the manufacturing process of the sheet bundle package progresses from upstream to downstream. The CD (Cross Direction) direction is a direction perpendicular to the MD direction on a plane along the MD direction. The TD (Transverse Direction) direction is a direction perpendicular to both the MD direction and the CD direction.
The longitudinal direction (indicated as "MD" in the figure, first direction) and the width direction (indicated as "CD" in the figure, second direction) are directions perpendicular to each other, and the direction along the horizontal direction is be. Here, a sheet bundle-containing package whose longitudinal dimension is larger than its width dimension is exemplified.

The vertical direction (indicated as "TD" in the figure, the upper direction is indicated as "U", and the lower direction is indicated as "B") is a direction perpendicular to both the longitudinal direction and the width direction, and the direction along the vertical direction. It is. This vertical direction corresponds to the stacking direction of the sheets.
In addition, the expression "numerical value X to numerical value Y" in the present embodiment means a range that is greater than or equal to numerical value X and less than or equal to numerical value Y.

[I. One embodiment]
In one embodiment below, the configuration regarding the sheet bundle package will be described in item [1]. In item [1], sub-item [1-1] mainly explains the laminated structure of the sheet bundle. In addition, sub-item [1-2] will explain the structure of each sheet forming the sheet bundle, and sub-item [1-3] will also explain the manufacturing process of the package containing the sheet bundle.
The functions and effects of the configuration of item [1] will be described in item [2].

[1. composition]
As shown in FIG. 1, in a sheet bundle package, a plurality of folded sheets S are stacked vertically in a sheet bundle 1, and this sheet bundle 1 is housed in a package 2 (indicated by thick lines in FIG. 1). has been done. In FIG. 1, the sheet bundle 1 (the contents of the package 2) is shown by a solid line.
The sheet bundle 1 has a rectangular parallelepiped shape and has four types of surfaces 1B, 1U, 1S, and 1E listed below. These surfaces 1B, 1U, 1S, and 1E constitute the outer surface of the sheet bundle 1.
・Bottom surface 1B: A surface extending in the longitudinal direction and width direction at the bottom of sheet bundle 1 ・Top surface 1U: A surface extending in the longitudinal direction and width direction at the top of sheet bundle 1 ・Side surface 1S: Side of sheet bundle 1・End surface 1E: A surface extending in the vertical direction and width direction at the side of the sheet bundle 1

The package 2 has an internal space large enough to accommodate the sheet bundle 1, and has a rectangular parallelepiped shape that is slightly larger than the sheet bundle 1. Like the sheet bundle 1, the package 2 also has a bottom surface 2B, a top surface 2U, a side surface 2S, and an end surface 2E.
This package 2 is provided with a take-out section 20 at the top from which the sheet S is taken out. Specifically, in the package 2, a break line on the top surface 2U (upper part) opposite to the top surface 1U of the sheet bundle 1 is provided as the take-out portion 20. When the break line of the take-out part 20 is broken, the sheets S can be taken out one by one from the take-out part 20 in a pop-up manner. The stacked structure of the sheets S taken out in sequence in this way will be explained next.

[1-1. Laminated structure of sheet bundle]
As shown in FIG. 2, each of the sheets S _constituting the sheet bundle 1 is folded into two along a folding line L _F extending along the longitudinal direction. Seed sheets are broadly divided into SA and SB.
・First sheet SA: Sheet S whose folding line L _F is on one side in the width direction (right side in Fig. 2)
・Second sheet SB: Sheet S whose folding line L _F is the other side in the width direction (left side in Fig. 2)

The folding line L _F of the first sheet SA forms one side (here, the right side) of the side surface 1S (see FIG. 1) in the sheet bundle 1, and the folding line L _F of the second sheet SB forms one side surface 1S (see FIG. 1) of the sheet bundle 1. (See Figure 1).
Each sheet S is roughly divided into two areas: an upper piece P _U that is folded upward with respect to the folding line _LF , and a lower piece P _D that is folded downward with respect to the folding line _LF . . The edge in the width direction of the upper piece P _U (hereinafter referred to as the "upper edge") E _U and the edge in the width direction of the lower piece P _D (hereinafter referred to as the "lower edge") E _D is the folding line L Extending along _F.

Here, an example will be described in which, counting from the bottom of the sheet bundle 1, the odd-numbered sheets S are the first sheets SA, and the even-numbered sheets S are the second sheets SB.
Among the first sheets SA, the first sheet S counting from the bottom of the sheet bundle 1 (hereinafter referred to as "first bottom sheet S1") is its lower piece P _D (hereinafter referred to as "first lower piece P _D1 "). ) forms a part of the bottom surface 1B (the right half in FIG. 2). Among the second sheets SB, the second sheet S counting from the bottom of the sheet bundle 1 (hereinafter referred to as "second bottom sheet S2") is its lower piece P _D (hereinafter referred to as "second lower piece P _D2 "). ) forms the other part (the left half in FIG. 2) of the bottom surface 1B.

The third sheet S counting from the bottom of the sheet bundle 1 (hereinafter referred to as the "third sheet S3") or the fourth sheet S counting from the bottom of the sheet bundle 1 (hereinafter referred to as the "fourth sheet S4") The other sheets S such as S are not exposed on the bottom surface 1B of the sheet bundle 1 and are not the sheets S forming the bottom surface 1B.
Here, the laminated structure of the sheet bundle will be explained focusing on three sheets, the second bottom sheet S2, the third sheet S3, and the fourth sheet S4.

The third sheet S3 is folded along the folding line L _F so as to sandwich the lower piece P _D of the fourth sheet S4 and the upper piece P _U of the second bottom sheet S2. That is, from above to below, the upper piece P _U of the third sheet S3, the lower piece P _D of the fourth sheet S4, the upper piece P _U of the second bottom sheet S2, and the lower piece P _D of the third sheet S3. Each of the sheets S2 to S4 is folded in order.
When the fourth sheet S4 is pulled out, the upper piece P _U of the third sheet S3 is pulled up by the lower piece P _D of the fourth sheet S4. Next, when the third sheet S3 is pulled out, the upper piece P _U of the second bottom sheet S2 is pulled up by the lower piece P _D of the third sheet S3. In this way, the sheets S2 to S4 that are vertically adjacent to each other are partially overlapped so that they are caught on each other, so that the sheets S are taken out one by one.

Each of the first sheets SA except the first bottom sheet S1 is configured in the same way except for the stacking position (vertical position). Each sheet S of the second sheet SB is similarly configured except for the stacking position.
That is, in the sheet bundle 1 of this embodiment, the other sheets S except for the first bottom sheet S1 are simply folded in half along the folding line L _F . By folding the other sheets S in half in this way, the other sheets S can be easily unfolded, and the usability or usability of the other sheets S can be improved.

The present inventor discovered that _, as shown by the dashed line in _FIG . It has been found that if the bottom structure is such that the strength and firmness of the first lower piece P _D1 is insufficient. This is inferred that the larger the area of the plane region having the free lower edge E _D that is not restrained by the first lower piece P _D1 of the first bottom sheet S1, the lower the strength and firmness of that region. .
As mentioned above, the sheet bundle 1 with the bottom surface 1B lacking in strength and firmness may cause wrinkles or twists in the first lower piece P _D1 forming the bottom surface 1B due to vibrations during transportation or changes in the transportation speed. be.

On the other hand, since the first bottom sheet S1 is not only folded along the folding line L _F but also folded back along the folding line L _D in the first lower piece P _D1 , the first lower piece in the first bottom sheet S1 It was discovered that the strength and firmness of P _D1 can be ensured. It has been found that the first lower piece P _D1 with improved strength and firmness can suppress the occurrence of wrinkles and twisting.
In addition, the second bottom sheet S2 has strength and firmness because the lower edge E _D (regulating edge) of the second lower piece P _D2 is sandwiched between the first bottom sheet S1 and restrained (movement is restricted). It was also found that the appearance of wrinkles and wrinkles can be suppressed.

Furthermore, if tissue paper is used for the sheet S instead of paper towels, even if the first bottom sheet S1 is folded back along the folding line L _D in addition to the folding line L _F , the generation of wrinkles and twisting will be suppressed. We also learned that it is difficult to This is because tissue paper has less strength and lacks firmness than paper towels, and even if the first bottom sheet S1 is folded back, it is difficult to ensure sufficient strength and firmness for the first bottom piece P _D1 . It is inferred.
Therefore, in the configuration in which the first bottom sheet S1 is folded back along the folding line L _D , wrinkles and twists can be avoided by applying a specific object such as a paper towel instead of tissue paper to the sheets S including the first bottom sheet S1. It can be said that the occurrence can be suppressed.

Hereinafter, a configuration in which the first bottom sheet S1 is folded back along the folding line L _D will be described.
The folding line L _D is provided to extend along the folding line L _F in the first lower piece P _D1 . This folding line L _D is provided parallel to the longitudinal direction and is located at the center of the sheet bundle 1 in the width direction.
As shown in FIG. 3, the first bottom sheet S1 unfolded into a plane is only divided into one upper piece P _U and the other first lower piece P _D1 with respect to the folding line L _F. Instead, the first lower piece P _D1 is divided by the folding line L _D into two areas: a base piece P _B and a folded piece P _T having a lower edge E _D.

Examples of modes in which the first lower piece P _D1 is folded back along the folding line L _D include the following mode I shown by a solid line in FIG. 2 and the following mode II shown by a two-dot chain line in FIG. 2.
・Aspect I: An outward folding aspect in which the folding piece P _T is folded downward along the folding line _LD・Aspect II: An inward folding mode in which the folding piece _PT is folded upward along the folding line _LD In Mode I, the folding The base piece P _B is arranged above the piece P _T , and the lower edge E _D of the folded piece P _T is not restrained. On the other hand, in embodiment II, the folded piece P _T is arranged above the base piece P _B , and the folded piece P _T is sandwiched between the second lower piece P _D2 of the second bottom sheet S2 and the base piece P _B. Therefore, the lower edge E _D of the folded piece P _T is restrained.

In aspect I, the area forming part of the bottom surface 1B of the sheet bundle 1 is the folded piece P _T in the first bottom sheet S1. If the base piece P _B is exposed on the bottom surface 1B from the folded piece P _T , the base piece P _B excluding the area overlapping with the folded piece P _T when viewed from below also forms a part of the bottom face 1B of the sheet bundle 1 .
In aspect II, a region forming a part of the bottom surface 1B of the sheet bundle 1 is the base piece P _B of the first bottom sheet S1.
In addition, in both embodiments I and II, the other area of the bottom surface 1B in the sheet bundle 1 is obtained by excluding the area that overlaps with the first lower piece P _D1 in a bottom view from the second lower piece P _D2 in the second bottom sheet S2. It is an area.

[1-2. sheet]
The sheets S stacked as described above may be composed of a set of plies (thin film-like sheets) formed by overlapping a plurality of sheets, or one sheet S may be composed of a set of plies (thin film-like sheets), or one sheet One sheet S may be composed of the following. In addition, the sheet S may be embossed or not embossed.
Hereinafter, the parameters of the paper towel constituting the sheet S will be described with reference to Table 2 below, and for reference, the parameters of the tissue paper whose application to the sheet S is excluded will also be described. In Table 2, dimensionless quantities are indicated by [-], and parameters are shown for a single ply (hereinafter referred to as "base paper") that has not been embossed.

Hereinafter, each parameter of basis weight, paper thickness, tensile strength, elongation, and softness shown in Table 2 above will be explained in order.
Note that each parameter described here preferably has a range that specifies that the base paper is a paper towel, and preferably a range that specifies that the base paper is not tissue paper.

--Yonetsubo and paper thickness--
Yonetsubo is the weight per square meter of base paper. Paper towels have a larger square footage than tissue paper.
Paper thickness is the dimension of base paper in the thickness direction. Paper towels are generally thicker than tissue paper.

The larger the tsubo and paper thickness, the more the strength and firmness of the base paper tends to be ensured. Therefore, if the basis weight or paper thickness is larger than a predetermined upper limit, wrinkles and twisting of the first bottom piece P _D1 tend to be suppressed even if the first bottom sheet S1 is not folded back. Furthermore, if the basis weight or paper thickness is smaller than a predetermined lower limit value, wrinkles or twists in the first bottom piece P _D1 tend to occur even if the first bottom sheet S1 is folded back.

From the above tendency, the predetermined upper limit set for the square meter weight of the sheet S is preferably 26 [g/m ² ] or less, and more preferably 25 [g/m ² ] or less. . The predetermined lower limit value set for the basis weight of the sheet S is preferably 18 [g/m ² ] or more, and more preferably 20 [g/m ² ] or more.
Further, the predetermined upper limit value set for the paper thickness of the sheet S is preferably 110 [μm] or less, and more preferably 100 [μm] or less. Further, the predetermined lower limit value set for the paper thickness of the sheet S is preferably 70 [μm] or more, and more preferably 80 [μm] or more.

--Tensile strength--
Tensile strength is an index indicating the strength of base paper to which tensile force is applied.
Here, the tensile strength in the longitudinal direction and the transverse direction shown below was measured separately.
・Vertical direction: Direction perpendicular to the direction in which the base paper is taken out (MD direction)
・Horizontal direction: Original paper removal direction (CD direction)

This tensile strength was measured using the following apparatus, object, and method.
・Measuring device: Tensilon tensile tester (manufactured by A&D)
・Measurement target: A sample cut from a sheet with a width of 15 [mm] and a span length of 100 [mm]. ・Measurement method: Measured at a tensile speed of 50 [mm/min] and calculated the average of 10 measurements. The tensile strength of paper towels is generally greater than that of tissue paper in both the machine and transverse directions.

Similar to paper thickness and tsubo, the higher the tensile strength, the more the strength and firmness of the base paper tends to be ensured. From this tendency, it is preferable that the tensile strength of the sheet S is set within the range shown in Table 2.
Specifically, the tensile strength in the longitudinal direction is preferably 3 [N] or more and 10 [N] or less, and more preferably 4 [N] or more and 7 [N] or less. Further, as shown in Table 2, the tensile strength in the transverse direction is preferably 1.5 [N] or more and 5 [N] or less, and 2 [N] or more and 3.5 [N]. It is more preferable that it is below.

--stretch--
Elongation is an index indicating the degree to which a sheet can be stretched without breaking. Here, elongation was measured in each of the longitudinal and transverse directions, similar to the tensile strength measurement direction.
The elongation is calculated (measured) using the following formula.
・Formula: Elongation [%] = Amount of elongation of sample (base paper) [mm] x 100/Span length [mm]

This elongation, like the tensile strength, was measured using the following equipment, object, and method.
・Measuring device: Tensilon tensile tester (manufactured by A&D)
・Measurement target: A sample cut from a sheet with a width of 15 [mm] and a span length of 100 [mm]. ・Measurement method: Measured at a tensile speed of 50 [mm/min] and calculated the average of 10 measurements. The elongation of paper towels in the longitudinal direction is generally greater than that of tissue paper.

If the elongation is outside the range shown in Table 2, there is a tendency that wrinkles and twists of the first bottom piece P _D1 are easily suppressed even if the first bottom sheet S1 is not folded back, or if the first bottom sheet S1 is folded back. Even if it is, the first lower piece P _D1 tends to wrinkle or twist.
Therefore, it is preferable that the elongation is within the range shown in Table 2. Specifically, the elongation in the longitudinal direction is preferably 15 [%] or more and 30 [%] or less, and more preferably 20 [%] or more and 25 [%] or less. Further, the elongation in the lateral direction is preferably 2 [%] or more and 6 [%] or less, and more preferably 3 [%] or more and 5 [%] or less.

--Softness--
Softness is an index indicating the softness of a sheet, and the smaller the value, the softer the sheet tends to be. Here, softness was measured in both the vertical and horizontal directions.
・Measuring device: Handle meter (manufactured by Kumagai Riki Kogyo Co., Ltd.)
・Measurement target: Paper towel sheet cut into 10 [cm] x 10 [cm]
Tissue paper is a sheet cut into 20 [cm] x 20 [cm] ・Measurement method: A slit with a width of 7 [mm] and a length of 250 [mm] provided on the measuring table is
Place the sheet on the measuring stand so that it is in the center of the sheet (target to be measured).
The sheet is pushed into the slit by an arm with a length of 240 mm.
Read the load when
Measure 5 times and calculate the average value

If the softness is outside the range shown in Table 2, there is a tendency that wrinkles and twists of the first bottom piece P _D1 are easily suppressed even if the first bottom sheet S1 is not folded back, or that the first bottom sheet S1 is Even if it is folded back, wrinkles and twists tend to occur in the first lower piece P _D1 .
Therefore, it is preferable that the softness is within the range shown in Table 2. Specifically, the softness in the longitudinal direction is preferably 50 or more and 200 or less, more preferably 100 or more and 150 or less. Further, the softness in the lateral direction is preferably 150 or more and 350 or less, and more preferably 200 or more and 300 or less. Note that the softness of paper towels in both the vertical and horizontal directions is generally greater than that of tissue paper.

[1-3. Manufacturing process]
As shown in FIG. 4, the sheet bundle package is manufactured through the following steps 1 to 3.
・Process 1: A process in which the continuous body 3 is cut into sheet bundles 1 by a log saw 4 (cutting section) ・Process 2: A process in which the sheet bundle 1 cut into pieces in process 1 is conveyed by a conveyor 5 ・Process 3: In process 2 A step in which the conveyed sheet bundle 1 is accommodated in the packaging body 2

The interval (dimension) at which the continuous body 3 is cut by the log saw 4 in step 1 corresponds to the longitudinal dimension of the sheet bundle 1. In step 2, the bottom surface 1B of the sheet bundle 1 cut from the continuous body 3 is placed on the conveyance surface of the conveyor 5, and is conveyed while being affected by disturbances such as vibrations during conveyance or changes in conveyance speed. . In step 3, the sheet bundle 1 conveyed by the conveyor 5 is packaged by being accommodated in the packaging body 2.
After going through steps 1 to 3 above, a sheet bundle package product is completed.

[2. Action and effect]
Since the present embodiment is configured as described above, the following actions and effects can be obtained.
Since the folded piece P _T folded back along the fold line L _D at the first lower piece P _D1 of the first bottom sheet S1 forms a part of the bottom surface 1B of the sheet bundle 1, as shown by the dashed line in FIG. Compared to the first lower piece P _D1 extending over the entire bottom surface 1B, strength and firmness are improved.
Further, the second lower piece P _D2 of the second bottom sheet S2 has its lower edge E _D sandwiched and restrained by the first bottom sheet S1, so that strength and firmness are ensured.

Therefore, even if the sheet bundle 1 is affected by disturbances such as vibrations and speed changes during transportation during the manufacturing process of the sheet bundle package, the first lower piece P D1 and the second lower piece P _D1 forming the bottom surface 1B of the sheet bundle 1 It is possible to suppress wrinkles and twists from occurring on the second lower piece P _D2 .
Therefore, in a sheet bundle package in which the sheet bundle 1 is housed in the package 2 so that the bottom surface 1B is visible from the outside, wrinkles and twisting of the bottom surface 1B can be suppressed and the appearance can be ensured.

According to mode I in which the folding piece P _T is folded downward along the folding line L _D , the process of folding back the folding piece P _T (setting of manufacturing equipment) can be easily set, and an increase in manufacturing costs can be suppressed. .
Furthermore, according to embodiment II in which the folding piece P _T is folded upward along the folding line L _D , the lower edge E _D of the folding piece P _T is restrained, so that the first lower edge forming the bottom surface 1B of the sheet bundle 1 is The strength and firmness of the piece P _D1 can be improved. Therefore, the appearance of the sheet bundle package can be ensured.

Since the folding line L _D is arranged at the center of the sheet bundle 1 in the width direction, the lower edge E _D of the folding piece P _T can be arranged at the end of the sheet bundle 1 in the width direction. In other words, the widthwise positions of the lower edge _ED of the first bottom sheet S1 and the edges _EU and _ED of the other first sheets SA can be aligned. From this point of view as well, it helps to ensure the appearance of the bottom surface 1B of the sheet bundle 1.

If the take-out part 20 is provided on the bottom surface 2B of the package 2, the first bottom sheet S1 is first taken out from the package containing a bundle of sheets. Therefore, even if the first bottom sheet S1 has wrinkles or twists, the appearance can be maintained after the first bottom sheet S1 is taken out.
On the other hand, since the take-out part 20 from which the sheet S is taken out is provided on the top surface 2U of the package 2, the sheet bundled package remains unused until the first bottom sheet S1 is removed from the take-out part 20. A good appearance can be ensured.

In addition, if the parameters of the sheets S constituting the sheet bundle 1 are within the above-mentioned range, the bottom surface 1B of the sheet bundle 1 is less likely to wrinkle or twist.
Specifically, according to a sheet S having a square meter weight of 18 to 26 [g/m ² ] and a sheet S having a paper thickness of 70 to 110 [μm], the first bottom sheet S1 is folded back along the folding line L _D. However, if the first bottom sheet S1 is folded back along the folding line L _D , wrinkles and twisting are likely to occur.
By employing the sheet S having the above parameters, it is possible to ensure the appearance of the sheet bundle package.

[II. others]
The above-described embodiment is merely an example, and there is no intention to exclude the application of various modifications and techniques not explicitly described in this embodiment. Each structure of this embodiment can be modified and implemented in various ways without departing from the spirit thereof. Moreover, they can be selected as needed, and can be combined as appropriate.

For example, the sheet bundle package is not limited to one in which the longitudinal dimension is larger than the width direction, and the width direction and longitudinal dimension may be equal.
Further, the laminated structure of the sheet bundle may be any structure except for the first lower piece of the first bottom sheet and the second lower piece of the second bottom sheet. To give a specific example, the sheets other than the first bottom sheet and the second bottom sheet may be subjected to other folding processes in addition to being folded in half.

1 Sheet bundle 1B Bottom surface 1E End surface 1S Side surface 1U Top surface 2 Packaging body 2B Bottom surface 2E End surface 2S Side surface 2U Top surface 20 Removal section 3 Continuous body 4 Log saw (cutting section)
5 Conveyor E _D , E _D1 , E _D2 lower edge E _U upper edge L _D folding line L _F folding line P _D lower piece P _U upper piece P _D1 first lower piece P _D2 second lower piece P _B base piece P _T- folding piece S Sheet SA First sheet SB Second sheet S1 First bottom sheet S2 Second bottom sheet S3 Third sheet S4 Fourth sheet

Claims (7)

A sheet made of paper towels is folded in two along a folding line, and a sheet bundle is obtained by stacking the sheets one above the other, which is taken out using a pop-up method, and the bottom surface of the sheet bundle is visible from the outside. A package containing a sheet bundle, comprising: a package for accommodating a bundle;
The sheet bundle is
a first lower piece that forms part of the bottom surface and is folded downward along the folding line in a first bottom sheet that is disposed lowest among the sheets;
It has a regulating edge that is an edge that is sandwiched between the first bottom sheet and is an edge along the folding line, and forms the other part of the bottom surface excluding the part, and the most of the sheets. a second lower piece folded downward along the folding line in a second bottom sheet disposed second from the bottom;
The first lower piece has a folded piece that is folded back along a folding line along the folding line,
The sheet has a softness in the longitudinal direction of 50 [mN/10cm] or more and 200 [mN/10cm] or less, and a horizontal softness of 150 [mN/10cm] or more and 350 [mN/10cm] or less. ,
In the sheet bundle, the sheets other than the first bottom sheet are simply folded in half along the folding line.
A sheet bundle packaging body characterized by: The sheet bundle package according to claim 1, wherein the folding piece is folded downward along the folding line. The sheet bundle package according to claim 1, wherein the folding piece is folded upward along the folding line. The package containing a sheet bundle according to any one of claims 1 to 3, wherein the folding line is arranged at the center of the sheet bundle in a direction orthogonal to an extending direction of the folding line. The sheet bundle packaging according to any one of claims 1 to 4, wherein the package is provided with a take-out portion from which the sheets are taken out at an upper portion opposite to a top surface of the sheet bundle. body. The sheet bundle package according to any one of claims 1 to 5, wherein the sheet has a basis weight of 18 to 26 [g/m ² ]. The sheet bundle package according to any one of claims 1 to 6, wherein the sheet has a paper thickness of 70 to 110 [μm].

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