Paper towel wrapper package

Abstract

To provide a paper towel wrapper package that can tightly wrap and prevent deformation of the paper towel roll while maintaining the softness and water absorbency of the sheet or roll.SOLUTION: The present disclosure relates to a paper towel wrapper package 10 in which a plurality of paper towel wrappers 20 containing three rolls is packaged in a first exterior film 30, and the paper towel wrapper 20 is a package in which three rolls of paper towel rolls 40 are arranged in a straight line in the width direction and packaged in a second exterior film 50, and two to five rolls are arranged in the thickness direction and packaged in the first exterior film 30, the winding density is 0.15 m / cm2 or more and 0.60 m / cm2 or less, the winding softness is 1.2 mm or more and 4.0 mm or less, the drop from the top surface of the base of the paper towel wrapper 20 located furthest to the other side in the thickness direction is 10 mm or more and 45 mm or less, and the water absorption capacity is 280 g / m2 or more and 570 g / m2 or less.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] FIELD OF THE DISCLOSURE The present disclosure relates to paper towel wrapper packages. [Background technology]

[0002] There is a package in which a plurality of roll products are packaged together in an exterior film.

[0003] For example, Patent Document 1 discloses a toilet roll package in which 10 toilet rolls are gusset-packaged with an outer film, and Patent Document 2 discloses a toilet roll package in which two toilet rolls are packaged with a film. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2019-116302 [Patent Document 2] Japanese Patent Application Publication No. 2018-114988 Summary of the Invention [Problem to be solved by the invention]

[0005] Meanwhile, paper towels are becoming increasingly longer. Highly absorbent, bulky paper towel rolls that emphasize quality are wound more loosely and have a lower winding density than long rolls. While it is possible to obtain a tightly wound paper towel package by wrapping three rolls of such high-absorbency, bulky, and loosely wound paper towel rolls in film, when multiple such paper towel packages are bundled together and further wrapped in film from the outside to form a paper towel package, the paper towel packages tend to move within the package, making it difficult to maintain the tightness of the paper towel package. Furthermore, if the paper towel packages move within the package, they may come into contact with each other or with the paper towel rolls, resulting in deformation of the paper towel rolls. On the other hand, ensuring a tightly wound paper towel package requires tight wrapping, which can crush the paper towel rolls inside, resulting in crushed embossing or a thin paper thickness, making it difficult to maintain quality.

[0006] Therefore, the present disclosure aims to provide a paper towel package that can tightly package even when two to five paper towel packages containing three rolls are packaged together in film, and that can prevent deformation of the paper towel roll while maintaining the softness and absorbency of the sheets and rolls. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems, a first aspect of the present invention is a paper towel package package in which a plurality of paper towel packages containing three rolls are packaged in a first exterior film, and the paper towel package is a package in which three rolls of paper towel rolls, each rolled up into a roll, are arranged linearly in a first direction intersecting the axial direction and packaged in a second exterior film, and two to five rolls are arranged in a second direction intersecting both the axial direction and the first direction and packaged in the first exterior film, and the winding density of the paper towel roll is 0.15 m / cm 2 More than 0.60m / cm 2the paper towel roll has a winding softness of 1.2 mm or more and 4.0 mm or less, the paper towel package is placed on a platform, all of the paper towel packages are moved to one side in the second direction, and the paper towel package furthest to the other side in the second direction is dropped outside the edge of the platform by a drop of 10 mm or more and 45 mm or less from the top surface of the platform, and the water absorption per unit area of the paper towels is 280 g / m 2 More than 570g / m 2 The following is the result.

[0008] A second aspect of the present invention is the paper towel wrapper package of the first aspect, wherein the roll diameter of the paper towel roll is 125 mm or more and 175 mm or less.

[0009] A third aspect of the present invention is the paper towel package of the first aspect or the second aspect, wherein the basis weight of the paper towel product ply is 33 g / m 2 More than 65g / m 2 The following is the result.

[0010] A fourth aspect of the present invention is the paper towel wrapper package of the first aspect or the second aspect, wherein the paper towel has a thickness of 2.0 mm / 10 ply or more and 5.0 mm / 10 ply or less.

[0011] A fifth aspect of the present invention is the paper towel wrapper package of the first aspect or the second aspect, wherein the water absorption per unit mass of the paper towels is 3.0 g / g or more and 12.0 g / g or less.

[0012] A sixth aspect of the present invention is the paper towel wrapper package of the first aspect or the second aspect, wherein the roll length of the paper towel roll is 20 m or more and 50 m or less.

[0013] A seventh aspect of the present invention is a paper towel packaging package of the first aspect or the second aspect, wherein an embossment is formed on the paper towel, and the embossment area ratio of the embossment is 8% or more and 20% or less.

[0014] An eighth aspect of the present invention is a paper towel wrapper package according to the first or second aspect, wherein the roll weight, excluding the core, per 280 mm width of the paper towel roll is 190 g or more and 620 g or less.

[0015] A ninth aspect of the present invention is the paper towel wrapper package of the first aspect or the second aspect, wherein the roll density of the paper towel roll is 0.03 g / cm 3 More than 0.20g / cm 3 The following is the result.

[0016] A tenth aspect of the present invention is a paper towel package package of the first aspect or the second aspect, wherein the circumferential length A of the second outer film when the second direction of the paper towel package before being wrapped in the first outer film is taken as an axis is 1300 mm or more and 1700 mm or less.

[0017] An eleventh aspect of the present invention is a paper towel packaging package of the first aspect or the second aspect, wherein the circumference B of the first outer film of the paper towel packaging package when the second direction is taken as an axis is 1260 mm or more and 2000 mm or less.

[0018] A twelfth aspect of the present invention is a paper towel package of the first aspect or the second aspect, wherein the value (%) expressed as (perimeter B (mm) of the first outer film of the paper towel package when the second direction is the axis) / (perimeter A (mm) of the second outer film of the paper towel package before being wrapped in the first outer film when the second direction is the axis) x 100 is 97% or more and 115% or less.

[0019] A thirteenth aspect of the present invention is a paper towel package of the first or second aspect, wherein the value expressed by {(perimeter B (mm) of the first outer film of the paper towel package when the second direction is the axis) / (perimeter A (mm) of the second outer film of the paper towel package before being wrapped with the first outer film when the second direction is the axis) x 100} / (rolling softness (mm) of the paper towel roll) is 20 or more and 80 or less.

[0020] A fourteenth aspect of the present invention is a paper towel package according to the first aspect or the second aspect, wherein {(perimeter B (mm) of the first exterior film of the paper towel package when the second direction is an axis) / (perimeter A (mm) of the second exterior film of the paper towel package before being wrapped with the first exterior film when the second direction is an axis) × 100} / (winding density (m / cm) of the paper towel roll). 2 The value represented by )) is between 180 and 450.

[0021] A fifteenth aspect of the present invention is a paper towel packaging package according to the first or second aspect, wherein the tensile strength DMDT in the MD direction when dry based on JIS P 8113 of the paper towel product ply is 6.0 N / 25 mm or more and 14.0 N / 25 mm or less.

[0022] A sixteenth aspect of the present invention is a paper towel packaging package according to the first or second aspect, wherein the tensile strength (DCDT) in the CD direction when dry based on JIS P 8113 of the paper towel product ply is 6.0 N / 25 mm or more and 14.0 N / 25 mm or less.

[0023] A seventeenth aspect of the present invention is the paper towel wrapper package of the first or second aspect, wherein the paper towel roll has a cylindrical core at the center, and the apparent basis weight of the core is 200 g / m 2 More than 500g / m 2 The following is the result.

[0024] An 18th aspect of the present invention is a paper towel wrapper package of the first aspect or the second aspect, wherein the paper towel roll has a cylindrical core in the center, and the outer diameter of the core is 28 mm or more and 58 mm or less.

[0025] A 19th aspect of the present invention is a paper towel wrapper package according to the first or second aspect, wherein the paper towel roll has a cylindrical core in the center, and the core contains LBKP (hardwood bleached kraft pulp). [Effects of the Invention]

[0026] According to the present disclosure, it is possible to provide a paper towel package that can tightly package even when two to five paper towel packages containing three rolls are packaged together in film, and that can prevent deformation of the paper towel roll while maintaining the softness and absorbency of the sheets and rolls. [Brief explanation of the drawings]

[0027] [Figure 1] 1 is a perspective view of a paper towel wrapper package according to one embodiment of the present invention. FIG. [Figure 2] FIG. 1 is a perspective view of a paper towel package. [Figure 3] FIG. 1 is a perspective view of a paper towel roll. [Figure 4] FIG. 1 is a diagram showing a method for measuring the water absorption of a paper towel. [Figure 5] FIG. 1 is a diagram showing an example of an embossed pattern on a paper towel. [Figure 6] FIG. 10 is an explanatory diagram showing a method for measuring a drop from the top surface of a table. DETAILED DESCRIPTION OF THE INVENTION

[0028] An embodiment of the present invention will be described in detail below, but the following embodiment is presented for illustrative purposes, and the present invention is not limited to the embodiment shown below. Note that the axial direction refers to the axial direction of the paper towel roll, which is the X direction in the drawings. The width direction (first direction) refers to the direction intersecting (perpendicular to) the axial direction, and is the direction in which the paper towel rolls are lined up in the paper towel package, which is the Y direction in the drawings. The thickness direction (second direction) refers to the thickness direction of the paper towel package, and is the direction intersecting (perpendicular to) both the axial direction and the width direction, which is the Z direction in the drawings. In the following description, the axial direction may be referred to as the X direction, the width direction may be referred to as the Y direction, and the thickness direction may be referred to as the Z direction.

[0029] Fig. 1 is a perspective view of a paper towel package according to one embodiment of the present invention. Fig. 2 is a perspective view of a paper towel package. Fig. 3 is a perspective view of a paper towel roll. Fig. 4 is a diagram showing a method for measuring the water absorption of a paper towel. Fig. 5 is a diagram showing an example of an embossed pattern on a paper towel. Fig. 6 is an explanatory diagram showing a method for measuring the drop from the top surface of a table.

[0030] <Paper towel packaging> As shown in Fig. 1, paper towel package 10 according to this embodiment is formed by packaging a plurality of paper towel packages 20 (four in Fig. 1) containing three rolls each together in a first exterior film 30. In paper towel package 10, a plurality of paper towel packages 20 are arranged in the thickness direction (Z direction) and packaged in first exterior film 30. As shown in Fig. 2, paper towel package 20 is formed by packaging three paper towel rolls 40 together in a second exterior film 50.

[0031] As will be described later, in paper towel package package 10 according to this embodiment, the winding density of paper towel roll 40, the winding softness of paper towel roll 40, and the drop of paper towel packages 20 of paper towel package package 10 from the top surface of the stand are appropriately set. As a result, this embodiment can provide paper towel package package 10 that can tightly wrap even when two to five paper towel packages 20 containing three rolls are collectively wrapped in film, and that can prevent deformation of paper towel roll 40 while maintaining the softness and absorbency of the sheet and roll.

[0032] The details of each component are as follows:

[0033] (Number of toilet roll packages) As shown in FIG. 1 , paper towel package 10 contains two to five paper towel packages 20 arranged in a single layer in the thickness direction (Z direction) and in the axial direction (X direction), and is packaged in first exterior film 30. If only one paper towel package 20 is packaged, the number of packages will be too small, resulting in overpackaging. On the other hand, if six or more paper towel packages 20 are packaged, the number of paper towel rolls 40 that collide with each other will increase, making the paper towel roll 40 more likely to be crushed and deformed. The number of paper towel packages 20 is more preferably three to five, and even more preferably four.

[0034] (pack weight) The weight of the paper towel package 10 (hereinafter sometimes referred to as "pack weight") is preferably 1.7 kg or more and 7.7 kg or less. If the pack weight is lighter than 1.7 kg, the tightness will be poor. On the other hand, if the pack weight is heavier than 7.7 kg, the paper towel roll 40 will be more likely to be crushed and deformed. The lower limit of the above range of pack weight is more preferably 2.5 kg or more, and even more preferably 3.0 kg or more. The upper limit of the above range of pack weight is more preferably 7.2 kg or less, and even more preferably 6.5 kg or less.

[0035] <First exterior film> 1, first exterior film 30 is a resin film that packages multiple paper towel packages 20. First exterior film 30 covers, from all directions, multiple paper towel packages 20 that are arranged side by side in the thickness direction.

[0036] Examples of resin films used for the first exterior film 30 include LDPE (low-density polyethylene), LLDPE (linear low-density polyethylene), HDPE (high-density polyethylene), CPP (coated polypropylene), and films obtained by blending or mixing these materials. These films may also be laminated, coated, or multi-layered with other materials. Examples of such other materials include OPP (oriented polypropylene), EVOH (ethylene-vinyl alcohol copolymer), Ny (nylon), PET (polyethylene terephthalate), and PVDC (polyvinylidene chloride). Among these, LLDPE, LDPE, or a mixture thereof is preferred for the resin film used for the first exterior film 30. By using LLDPE, LDPE, or a mixture thereof for the resin film used for the first exterior film 30, even when multiple three-roll paper towel packages 20 are packaged, the paper towel rolls 40 can be tightly packaged and less likely to deform.

[0037] The packaging of the plurality of paper towel packages 20 in the first exterior film 30 is preferably pillow packaging.

[0038] Pillow packaging is well known. For example, a plurality of paper towel packages 20 are placed on or under a sheet-like first exterior film 30, and the first exterior film 30 is then wrapped around the plurality of paper towel packages 20 in a cylindrical shape. At the overlapping portions of the first exterior film 30, the outer surface of the inner film and the inner surface of the outer film are bonded (heat sealed or the like) (not shown). At this time, the first exterior film 30 is wrapped around a cylinder extending in the Z direction. Then, opening portions 30a on both sides of the cylindrically wrapped first exterior film 30 in the Z direction are gusset-folded and sealed in a horizontal line in the width direction (Y direction) by heat sealing or the like, and the sealed portions are cut into individual bags.

[0039] <Paper towel packaging> 2, paper towel package 20 is made by arranging paper towel rolls 40 in one row in the axial direction (X direction) and three rolls in a straight line in the width direction (Y direction) and packaging them with second exterior film 50. Paper towel rolls 40 are lined up in a straight line in the width direction (Y direction) with their axes parallel to each other, and their outer circumferential surfaces are in contact with each other.

[0040] <Second exterior film> Second exterior film 50 is a resin film that packages three paper towel rolls 40 together. Second exterior film 50 covers paper towel rolls 40 in all directions, with the three rolls arranged linearly in the width direction.

[0041] Examples of resin films used for the second exterior film 50 include LDPE (low-density polyethylene), LLDPE (linear low-density polyethylene), HDPE (high-density polyethylene), CPP (coated polypropylene), and films obtained by blending or mixing these materials. These films may also be laminated, coated, or multi-layered with other materials. Examples of such other materials include OPP (oriented polypropylene), EVOH (ethylene-vinyl alcohol copolymer), Ny (nylon), PET (polyethylene terephthalate), and PVDC (polyvinylidene chloride). Among these, LLDPE, LDPE, or a mixture thereof is preferred as the resin film used for the second exterior film 50. By using LLDPE, LDPE, or a mixture thereof as the resin film used for the second exterior film 50, the highly absorbent, soft paper towel rolls 40 can be tightly packed and the paper towel rolls 40 can be prevented from deforming, even when three rolls are packed.

[0042] The three paper towel rolls 40 are preferably wrapped in a caramel wrapper by the second exterior film 50. The caramel wrapper makes it easier to maintain the tightness of the wrapper.

[0043] Caramel packaging is well known. For example, three paper towel rolls 40 are placed side by side on a sheet-like second exterior film 50 in a folded state, and the second exterior film 50 is wrapped around the three paper towel rolls 40 in a circumferential direction to form a tube (a tube extending in the axial direction). Two opposing flap-shaped edges of the second exterior film 50 that extend beyond both axial ends of the three paper towel rolls 40 are folded toward each other, and then two other opposing flap-shaped edges are similarly folded toward each other, and these folded portions are sealed by heat sealing or the like. Thus, both axial end surfaces of each row of the caramel-wrapped paper towel rolls 40 are positioned approximately flush with each other and face the second exterior film 50 on the top surface 20a and the second exterior film 50 on the bottom surface 20b of the paper towel package 20.

[0044] <Paper towel roll> 3, paper towel roll 40 is a roll of long paper towels 40a wound up, with a core 41 such as a cylindrical paper tube or cylindrical space in the center. It is preferable that long paper towels 40a have easy-to-tear sections (not shown) such as perforations at predetermined intervals so that they can be cut to a predetermined length.

[0045] (core) Core 41 is located at the center of paper towel roll 40. Core 41 may be a cylindrical paper tube or a cylindrical space. In this embodiment, core 41 of paper towel roll 40 has a cylindrical paper tube made of multiple layers of base paper, and paper towels 40a are wound around this paper tube. In the following description, core 41 refers to core 41 that is a cylindrical paper tube unless otherwise specified.

[0046] The core 41 preferably contains LBKP (bleached hardwood kraft pulp) as the pulp fiber contained in the base paper. That is, the core 41 preferably contains LBKP. The LBKP content is preferably 50% by mass or more, more preferably 70% by mass or more, and even more preferably 90% by mass or more. By including LBKP in the core 41, the product has a luxurious feel.

[0047] (Core outer diameter) The outer diameter DI of the core 41 (hereinafter referred to as the "core outer diameter DI") is preferably 28 mm or more and 58 mm or less. If the core outer diameter DI is smaller than 28 mm, the winding diameter (outer diameter) DR of the paper towel roll 40 (hereinafter sometimes simply referred to as the "winding diameter DR") will be too small, resulting in poor tightness. On the other hand, if the core outer diameter DI is larger than 58 mm, the winding diameter DR of the paper towel roll 40 will be too large. The lower limit of the above range of the core outer diameter DI is more preferably 32 mm or more, and even more preferably 36 mm or more. The upper limit of the above range of the core outer diameter DI is more preferably 52 mm or less, and even more preferably 48 mm or less.

[0048] The core outer diameter DI is measured, for example, using a diameter rule manufactured by Muratec KDS Co., Ltd. Measurements are taken of 10 paper towel rolls 40, and the measurement results are averaged. In the case of a paper towel roll 40 without a core, the diameter of the cylindrical space (center hole) in the center of the paper towel roll 40 is considered to be the core outer diameter DI.

[0049] (core weight) The weight of the core 41 (hereinafter referred to as "core weight") is preferably 7 g or more and 22 g or less. If the core weight is less than 7 g, the diameter of the core 41 becomes small, and the winding diameter DR of the paper towel roll 40 becomes too small, resulting in poor tightness. On the other hand, if the core weight is greater than 22 g, the diameter of the core 41 becomes large, and the winding diameter DR of the paper towel roll 40 becomes too large, resulting in crushing and deformation of the paper towel roll 40. The lower limit of the above core weight range is more preferably 9 g or more, and even more preferably 11 g or more. The upper limit of the above core weight range is more preferably 19 g or less, and even more preferably 17 g or less. The core weight is defined as the weight per 280 mm of roll width W. If the roll width W is not 280 mm, it is converted to the weight per 280 mm by proportional calculation. The roll width W refers to the axial length of the paper towel roll 40.

[0050] (Apparent basis weight of core) The apparent basis weight of the core 41 (the basis weight of the core made of multiple layers of base paper) is 200 g / m 2 More than 500g / m 2 The apparent basis weight of the core 41 is preferably 200 g / m or less. 2 If it is smaller than 500g / m 2 If it is larger than this, it becomes difficult to use. In other words, by setting the apparent basis weight of the core 41 within the above range, the core 41 has an appropriate hardness, the core 41 is difficult to crush, and when the core 41 is folded (crushed) and discarded after using the paper towel roll 40, it becomes easy to fold (crush), and the roll product is easy to use. The lower limit of the above range of the apparent basis weight of the core 41 is 280 g / m 2 More preferably, it is 350 g / m or more. 2 The upper limit of the apparent basis weight of the core 41 is 480 g / m 2 More preferably, it is 450 g / m or less. 2 It is more preferable that the apparent basis weight of the core 41 is measured in accordance with JIS P 8124.

[0051] (reel diameter) The roll diameter DR of the paper towel roll 40 is preferably 125 mm or more and 175 mm or less. If the roll diameter DR is smaller than 125 mm, the roll diameter DR will be too small and will not be tight enough. On the other hand, if the roll diameter DR is larger than 175 mm, the roll diameter DR will be too large and will be too tight, which may cause the paper towel roll 40 to be crushed or damaged. The lower limit of the above range of the roll diameter DR is more preferably 135 mm or more, and even more preferably 145 mm or more. The upper limit of the above range of the roll diameter DR is more preferably 170 mm or less, and even more preferably 165 mm or less.

[0052] (Volume length) The winding length of the paper towel roll 40 (hereinafter sometimes simply referred to as "winding length") is preferably 20 m or more and 50 m or less. If the winding length is shorter than 20 m, the winding diameter DR becomes too small, resulting in poor tightness. On the other hand, if the winding length is longer than 50 m, the winding diameter DR becomes too large and the paper towel roll 40 becomes too tight, which may result in crushing or damage. The lower limit of the above winding length range is more preferably 23 m or more, and even more preferably 25 m or more. The upper limit of the above winding length range is more preferably 47 m or less, and even more preferably 43 m or less.

[0053] (roll width) The roll width W of the paper towel roll 40 is preferably 200 mm or more and 400 mm or less. If the roll width W is smaller than 200 mm, the tightness will be poor. On the other hand, if the roll width W is larger than 400 mm, the roll will be too tight, and the paper towel roll 40 may be crushed or damaged. The lower limit of the above range of the roll width W is more preferably 230 mm or more, and even more preferably 250 mm or more. The upper limit of the above range of the roll width W is more preferably 350 mm or less, and even more preferably 300 mm or less.

[0054] (winding density) The winding density of the paper towel roll 40 (hereinafter sometimes simply referred to as "winding density") is 0.15 m / cm 2 More than 0.60m / cm 2 The winding density is 0.15m / cm 2 If the winding density is set to less than 0.60 m / cm, the paper towel roll 40 becomes too soft and easily deformed. 2 If the winding density is greater (higher) than 0.25 m / cm, the paper towel roll 40 will be too hard and will be less soft. 2 It is preferable that the thickness is 0.29 m / cm or more. 2 The upper limit of the above range of winding density is preferably 0.50 m / cm or more. 2Preferably, it is 0.40 m / cm or less. 2 More preferably, it is:

[0055] The winding density is expressed by the following formula (1). Winding density = (winding length × number of plies) ÷ (cross-sectional area of paper towel roll 40) (1) The cross-sectional area of the paper towel roll 40 is expressed by the following formula (2). Cross-sectional area of paper towel roll 40=(cross-sectional area of the portion of paper towel roll 40 where the roll diameter is DR)−(cross-sectional area of the portion of the core where the outer diameter is DI) (2) For example, if the winding length is 20 m, 2 ply, winding diameter (DR) is 154 mm, and core outer diameter (DI) is 44 mm, winding density = (20 m × 2) ÷ {3.14 × (154 mm ÷ 2 ÷ 10)} 2 -3.14×(44mm÷2÷10) 2}=0.23m / cm 2 This becomes:

[0056] (Rolling softness) When evaluating the softness of the paper towel roll 40, the softness of the paper towel roll 40 when held in the hand can be evaluated by evaluating the "rolling softness" described below.

[0057] The winding softness of paper towel roll 40 (hereinafter sometimes simply referred to as "winding softness") is measured using a compression tester (handy compression tester KES-G5 manufactured by Kato Tech Co., Ltd.) as follows: The direction parallel to the axial direction of paper towel roll 40 is defined as the height direction, and the direction perpendicular to the tangent to the circumference of paper towel roll 40 is defined as the radial direction.

[0058] First, the paper towel roll 40 is placed horizontally on the table of the testing machine so that the axial direction of the paper towel roll 40 is horizontal. Then, the KES-G5 compression element (contact area 2.0 cm) is placed at the center of the axial direction of the paper towel roll 40. 2 ) is pressed from above in the radial direction at a speed of 10 mm / min. The pressure with which the compressing element presses the roll is 5 gf / cm 2The indentation depth when the pressure is 150gf / cm 2 The indentation depth at this time is defined as Tm, and (Tm - T0) is measured as the "winding softness." Next, the paper towel roll 40 is rotated 90 degrees circumferentially around its central axis as the axis of rotation, and the indentation depths Tm and T0 are measured in the same manner as above, and the difference between Tm and T0 (Tm - T0) is determined. Measurements are performed twice (at two angles) for each paper towel roll 40 as described above. That is, for three paper towel rolls 40, each is measured twice, and the average of the six measurement results (= two times per roll x 3 rolls) is used as the final winding softness.

[0059] The winding softness of the paper towel roll 40 is 1.2 mm or more and 4.0 mm or less. If the winding softness of the paper towel roll 40 is less than 1.2 mm, it will be too stiff and will have poor softness. On the other hand, if the winding softness of the paper towel roll 40 is more than 4.0 mm, it will be too soft and will be prone to deformation. The lower limit of the above range of winding softness is preferably 1.4 mm or more, and more preferably 1.6 mm or more. The upper limit of the above range of winding softness is preferably 3.6 mm or less, and more preferably 3.2 mm or less.

[0060] (roll weight) The roll weight of the paper towel roll 40 including the core (paper tube) 41 per 280 mm roll width W (hereinafter sometimes simply referred to as the "roll weight <with core>") is preferably 200 g or more and 630 g or less. If the roll weight <with core> is less than 200 g, the winding diameter DR becomes too small, resulting in poor tightness. On the other hand, if the roll weight <with core> is greater than 630 g, the winding diameter DR becomes too large and the roll becomes too tight, which may result in crushing or damage to the paper towel roll 40. The lower limit of the above range of the roll weight <with core> is more preferably 250 g or more, and even more preferably 300 g or more. The upper limit of the above range of the roll weight <with core> is more preferably 580 g or less, and even more preferably 420 g or less.

[0061] The roll weight of the paper towel roll 40 per 280 mm of roll width W, excluding the core 41 (core that is a paper tube) (hereinafter, sometimes simply referred to as the "roll weight <without core>"), is preferably 190 g or more and 620 g or less. If the roll weight <without core> is less than 190 g, the winding diameter DR becomes too small, resulting in poor tightness. On the other hand, if the roll weight <without core> is greater than 620 g, the winding diameter DR becomes too large, resulting in an excessively tight fit, which may result in crushing or damage to the paper towel roll 40. The lower limit of the above range of the roll weight <without core> is more preferably 240 g or more, and even more preferably 290 g or more. The upper limit of the above range of the roll weight <without core> is more preferably 570 g or less, and even more preferably 410 g or less.

[0062] (roll density) The roll density of the paper towel roll 40 (hereinafter sometimes simply referred to as "roll density") is 0.03 g / cm 3 More than 0.20g / cm 3 The roll density is preferably 0.03 g / cm or less. 3 If the roll density is less than 0.20 g / cm, the paper towel roll 40 becomes too soft and easily deforms.3 If the roll density is greater than 0.04 g / cm, the paper towel roll 40 will be too hard and will lack softness. 3 More preferably, it is 0.05 g / cm or more. 3 The upper limit of the above range of the roll density is preferably 0.15 g / cm. 3 More preferably, it is 0.10 g / cm or less. 3 It is more preferable that:

[0063] The roll density of the paper towel roll 40 is expressed as (roll weight of the paper towel roll 40 <without core>) / (volume of the paper towel roll 40), and is calculated by the following formula (3). Roll density = roll weight ÷ [{(cross-sectional area of the roll diameter DR (outer diameter) of the paper towel roll 40) - (cross-sectional area of the core outer diameter DI)} × roll width W (calculated based on 280 mm)] (3) For example, if the roll weight (without core) per roll width W280mm is 237g, the reel diameter (DR) is 154mm, and the core outer diameter (DI) is 44mm, then the roll density = 237g ÷ {(3.14 × (154mm ÷ 2 ÷ 10) 2 -3.14×(44mm÷2÷10) 2 )×(280mm÷10)}=0.05g / cm 3 This becomes:

[0064] <Paper towels> The paper towel 40a is preferably an embossed sheet made up of two or more layers. The number of layers of the paper towel 40a is more preferably 2 to 3, and even more preferably 2 layers.

[0065] (paper thickness) The thickness per 10 ply of the paper towel 40a (hereinafter simply referred to as "thickness of the paper towel 40a") is preferably 2.0 mm / 10 ply or more and 5.0 mm / 10 ply or less. If the thickness of the paper towel 40a is less than 2.0 mm / 10 ply, the absorbency will be poor. On the other hand, if the thickness of the paper towel 40a is greater than 5.0 mm / 10 ply, the roll will be too stiff. The lower limit of the above range of the thickness of the paper towel 40a is more preferably 2.5 mm / 10 ply or more, and even more preferably 2.8 mm / 10 ply or more. The upper limit of the above range of the thickness of the paper towel 40a is more preferably 4.5 mm / 10 ply or less, and even more preferably 4.2 mm / 10 ply or less.

[0066] The paper thickness was measured using the following method. A thickness gauge (Ozaki Seisakusho's "PEACOCK" dial thickness gauge) was used. The measurement conditions were a measurement load of 3.7 kPa and a probe diameter of 30 mm. The sample was placed between the probe and the measuring table, and the gauge reading was taken when the probe was lowered at a speed of 1 mm per second or less. To measure the paper thickness per 10 ply, 10 ply sheets (five sets of two-ply sheets) were stacked and measured, and the measurement results were averaged 10 times. For three-ply sheets, 9 ply sheets (three sets of three-ply sheets) were stacked and measured, and the thickness per ply was calculated from the measurement results and converted to 10-ply. The paper thickness was measured at five different points in the MD (machine direction) of the sheet, and five points shifted from these five points in the CD (cross direction), for a total of 10 points. It is important to measure the paper thickness at 10 different points, but the exact position is not important.

[0067] (Basic weight) The basis weight of the product ply of the paper towel 40a is measured in accordance with JIS P 8124 and is 33 g / m 2 More than 65g / m 2 The basis weight of the product ply of the paper towel 40a is preferably 33 g / m or less. 2On the other hand, when the basis weight of the product PLY of the paper towel 40a is 65 g / m 2 If it is larger than this, the roll density will be high and the winding softness will be hard. The lower limit of the above range of the basis weight of the product PLY of the paper towel 40a is 38 g / m 2 More preferably, it is 40 g / m or more. 2 The upper limit of the above range of the basis weight of the product ply of the paper towel 40a is 60 g / m 2 More preferably, it is 55 g / m or less. 2 It is more preferable that:

[0068] (specific volume) The specific volume of 40a paper towels is 12cm 3 / g or more 18cm 3 The specific volume of the paper towel 40a is preferably 12 cm 3 On the other hand, if the specific volume of the paper towel 40a is set to 18 cm / g or less, the absorbency will be poor. 3 If the specific volume is greater than / g, the roll softness will be hard. The specific volume of the paper towel 40a is calculated by dividing the paper thickness of a predetermined number of plies (e.g., product ply) of the paper towel 40a by the basis weight of the predetermined number of plies, and is expressed as a volume cm per unit g. 3 The lower limit of the above range of the specific volume of the paper towel 40a is 13 cm 3 / g or more is more preferable, and 14cm 3 The upper limit of the above range of the specific volume of the paper towel 40a is 17 cm 3 / g or less is more preferable, and 16cm 3 It is more preferable that the saturation coefficient is 1 / g or less.

[0069] (Tensile strength DMDT) The tensile strength DMDT in the machine direction (MD) of the product ply of paper towel 40a when dry (hereinafter sometimes referred to as "tensile strength DMDT of product ply") according to JIS P 8113 is preferably 6.0 N / 25 mm or more and 14.0 N / 25 mm or less. The lower limit of the above range of tensile strength DMDT of product ply is more preferably 8.0 N / 25 mm or more, and even more preferably 9.0 N / 25 mm or more. The upper limit of the above range of tensile strength DMDT of product ply is more preferably 13.0 N / 25 mm or less, and even more preferably 12.0 N / 25 mm or less.

[0070] (Tensile strength DCDT) The tensile strength DCDT in the cross direction (CD) of the product ply of paper towel 40a when dry (hereinafter sometimes referred to as "tensile strength DCDT of product ply") according to JIS P 8113 is preferably 6.0 N / 25 mm or more and 14.0 N / 25 mm or less. The lower limit of the above range of tensile strength DCDT of the product ply is more preferably 8.0 N / 25 mm or more, and even more preferably 9.0 N / 25 mm or more. The upper limit of the above range of tensile strength DCDT of the product ply is more preferably 13.0 N / 25 mm or less, and even more preferably 12.0 N / 25 mm or less.

[0071] (Measurement of tensile strength) The tensile strengths DMDT and DCDT of the product PLY of the paper towel 40a are measured in accordance with JIS P 8113. For example, they can be measured using a Tensilon universal testing machine STB-1225S (manufactured by A&D Co., Ltd.) by a method conforming to JIS P 8113. However, the test piece is measured after being maintained in an equilibrium state under the temperature and humidity conditions specified in JIS P 8111 (23±1°C, 50±2% RH) under the conditions that the width direction of the test piece (the direction perpendicular to the tensile direction of the Tensilon universal testing machine) is 25 mm, the distance between the grips is 100 mm, and the tensile speed is 50 mm / min.

[0072] If the tensile strength DMDT, DCDT is lower than 6.0 N / 25 mm, the paper towel roll 40 becomes easily damaged and deformed. On the other hand, if the tensile strength DMDT, DCDT is higher than 14.0 N / 25 mm, the softness of the paper towel 40a sheet becomes hard.

[0073] (Water absorption) Water absorption per unit area of paper towel 40a (g / m 2 ) is 280g / m 2 More than 570g / m 2 The water absorption per unit area is 280g / m 2 On the other hand, if the water absorption per unit area is less than 570g / m 2 If it is larger than this, the roll softness will be hard. The lower limit of the above range of water absorption per unit area is 340 g / m 2 It is preferable that the weight is 400 g / m or more. 2 The upper limit of the above range of water absorption per unit area is 520 g / m or more. 2 More preferably, it is 470 g / m or less. 2 It is more preferable that:

[0074] The water absorption per unit mass (g / g) of the paper towel 40a is preferably 3.0 g / g or more and 12.0 g / g or less. If the water absorption per unit mass is less than 3.0 g / g, the water absorbency will be poor. On the other hand, if the water absorption per unit mass is greater than 12.0 g / g, the roll softness will be too hard. The lower limit of the above range of water absorption per unit mass is preferably 6.0 g / g or more, and more preferably 8.7 g / g or more. The upper limit of the above range of water absorption per unit mass is more preferably 11.0 g / g or less, and even more preferably 10.5 g / g or less.

[0075] The amount of water absorbed by the paper towel 40a in a dry state was measured according to the following method. First, two plies of paper towel were taken and cut using a square template with each piece measuring 7.6 cm (3 inches) to prepare a rectangular test piece 200 (see FIG. 4) with each side measuring 7.6 cm. The weight of the test piece 200 before water absorption was measured using an electronic balance. The test piece 200 was set in a holder 220 (a jig that fixes three points of the test piece, made of a metal that does not absorb water).

[0076] Next, distilled water is poured into a commercially available tray to a depth of 2 cm, and the test piece 200 set in the holder 220 is immersed in the distilled water for 2 minutes. After immersion for 2 minutes, the test piece 200 and holder 220 are removed from the distilled water, and as shown in FIG. 4, a strip 210 is attached to one corner 200d of the test piece 200. The strip 210 is made by peeling the same paper towel as the two plies of paper towel to be measured into one ply, cutting this paper towel into a size of 2 mm x 15 mm, and attaching it to a portion of the test piece 200 6 mm from the corner 200d toward the center. Next, the holder 220 and test piece 200 are hung from a rod placed in an empty water tank with the corner 200a opposite corner 200d facing up, and the lid of the water tank is closed and left for 15 minutes.

[0077] Thereafter, the holder 220 and the test piece 200 are taken out of the water tank, the band 210 and the holder 220 are removed, and the weight of the test piece 200 is measured using an electronic balance. From the change in weight of the test piece 200 before and after immersion in distilled water, the amount of distilled water absorbed per unit area of the test piece 200 (g of water / sheet m 2 , 1m 2 Hit. Abbreviated as g / m 2 ) is calculated. Furthermore, the water absorption per unit area (g of water / sheet m 2 ) by the basis weight of the product ply of the test piece 200 to obtain the water absorption per unit area (water g / sheet m 2 ) / basis weight (sheet g / sheet m 2 ) = Water absorption per unit weight (g of water / g of sheet, per 1g. Abbreviated as g / g). Measurements are carried out five times for each sample, and the average value is used.

[0078] For three-ply paper towels, it is preferable to measure using the same procedure as for two-ply. This measurement is performed according to JIS P 8111 at a temperature of 23±1°C and humidity of 50±2%. The distilled water is kept at 23±1°C.

[0079] (embossed area ratio) The embossed area ratio of the paper towel 40a (hereinafter sometimes simply referred to as the "embossed area ratio") is preferably 8% or more and 20% or less. If the embossed area ratio is less than 8%, the winding softness will be hard. On the other hand, if the embossed area ratio is more than 20%, the sheet softness will be poor. That is, by setting the embossed area ratio within the above range, the embossing is less likely to be crushed even when pressure is applied to the paper towel 40a from the film packaging (first exterior film 30, second exterior film 50) or the adjacent paper towel roll 40, and water absorbency and sheet softness can be maintained. The lower limit of the above range of the embossed area ratio is preferably 9% or more, and more preferably 10% or more. The upper limit of the above range of the embossed area ratio is more preferably 18% or less, and even more preferably 16% or less.

[0080] The embossed area ratio is determined by measuring the area of the topmost embossment (the portion closest to the surface) on the surface of paper towel 40a using a microscope VR-3000 (manufactured by Keyence Corporation) and converting it into a ratio per unit area (area ratio).

[0081] The above area ratio is determined by measuring the total length of embossments that are 0.1 mm to 4 mm thick and 5 mm or longer inside a rectangle E that includes all of one embossing pattern, as shown in Figure 5, and then calculating the embossed area by multiplying the total length (mm) by the width (mm). The area per sheet of paper towel 40a is calculated as (sheet length x sheet width), and then calculating (embossed area / area per sheet of paper towel 40a) x 100 (%). If it is difficult to determine the embossed area ratio, the area ratio of the convex portions of the embossing roll used in embossing can be considered to be the area per sheet of paper towel 40a.

[0082] The size of one side of this rectangle E can be changed as appropriate depending on the size of the embossed pattern. Furthermore, if a rectangle that encompasses all of the embossed patterns includes an embossed pattern adjacent to an embossed pattern included in the rectangle, the length of the adjacent embossed pattern is also measured and included in the total length. If the size of one side of rectangle E cannot be clearly determined depending on the embossed pattern, the size of rectangle E is set to 10 x 10 cm, and the total length of the embossments included in this rectangle E is measured. The total length is determined by measuring using a ruler, tape measure, etc. using the method described above. Furthermore, if it is difficult to visually inspect the embossing, it may be measured using a general microscope.

[0083] (Circumference of the paper towel package with the thickness direction as the axis) As shown in FIG. 2, the perimeter of the paper towel package 20 before being wrapped with the first exterior film 30, as measured along the thickness direction (Z direction) of the second exterior film 50 (hereinafter referred to as "perimeter A of the second exterior film 50"), is preferably 1300 mm or more and 1700 mm or less. If the perimeter A of the second exterior film 50 is smaller than 1300 mm, the paper towel roll 40 will be crushed and deformed. On the other hand, if the perimeter A of the second exterior film 50 is larger than 1700 mm, the tightness will be poor. The lower limit of the above range of the perimeter A of the second exterior film 50 is more preferably 1350 mm or more, and even more preferably 1450 mm or more. The upper limit of the above range of the perimeter A of the second exterior film 50 is more preferably 1600 mm or less, and even more preferably 1500 mm or less.

[0084] The perimeter A of the second exterior film 50 is measured from above the second exterior film 50, measuring the dimensions of each portion of the paper towel package 20 before it is wrapped in the first exterior film 30. The perimeter A of the second exterior film 50 is the total length in the directions indicated by the four arrows a1 to a4 shown in FIG. 2. The lengths of the second exterior film 50 in the directions indicated by the arrows a1 and a2 are the lengths along the top surface 20a and bottom surface 20b of the paper towel package 20, and this total length is approximately six times the roll diameter DR of the paper towel roll 40. The lengths of the second exterior film 50 in the directions indicated by the arrows a3 and a4 are the lengths along both side surfaces in the width direction, and this total length is approximately twice the axial length of the paper towel roll 40 (hereinafter referred to as the "roll width W"). In other words, the perimeter A of the second exterior film 50 is approximately the same as ((roll diameter DR) × 6) + ((roll width W) × 2).

[0085] (Circumference of the paper towel package, with the thickness of the package as the axis) As shown in FIG. 1 , the perimeter of the paper towel package 10, as measured along the thickness direction (Z direction) of the first exterior film 30 (hereinafter referred to as "perimeter B of the first exterior film 30"), is preferably 1260 mm or more and 2000 mm or less. If the perimeter B of the first exterior film 30 is smaller than 1260 mm, the paper towel roll 40 will be crushed and deformed. On the other hand, if the perimeter B of the first exterior film 30 is larger than 2000 mm, the tightness will be poor. The lower limit of the above range for the perimeter B of the first exterior film 30 is more preferably 1400 mm or more, and even more preferably 1450 mm or more. The upper limit of the above range for the perimeter B of the first exterior film 30 is more preferably 1840 mm or less, and even more preferably 1730 mm or less.

[0086] When measuring the circumferential length B of the first exterior film 30, for example, opening portions 30a on both sides in the Z direction of the first exterior film 30 of the paper towel package 10 are cut open, the paper towel package 20 is removed, and the first exterior film 30 is formed into a cylindrical shape. Next, the gusset-folded portions on both sides of the first exterior film 30 in the width direction (Y direction) are folded so as to spread outward in the width direction, and both sides of the axial direction (X direction) of the first exterior film 30 are overlapped to crush the cylindrical first exterior film 30. The length of the first exterior film 30 in this crushed state in a direction intersecting the Z direction is measured, and twice the measured value is defined as the circumferential length B of the first exterior film 30. Alternatively, the actual dimensions of both sides of the first exterior film 30 in the crushed state (the length in the direction intersecting the Z direction) may be measured.

[0087] (Relationship between the circumference of the second exterior film and the circumference of the first exterior film) The ratio of the circumference B of the first exterior film 30 to the circumference A of the second exterior film 50 (hereinafter referred to as "circumference ratio C") is preferably 97% or more and 115% or less. The circumference ratio C is a value (%) expressed by the formula: (circumference B (mm) of the first exterior film 30) / (circumference A (mm) of the second exterior film 50) × 100. If the circumference ratio C is less than 97%, the paper towel roll 40 will be crushed and deformed. On the other hand, if the circumference ratio C is greater than 115%, the tightness will be poor. The lower limit of the above range of the circumference ratio C is more preferably 99% or more, and even more preferably 101% or more. The upper limit of the above range of the circumference ratio C is more preferably 110% or less, and even more preferably 105% or less.

[0088] (Relationship between circumference ratio and winding softness) The value D (hereinafter sometimes simply referred to as "value D"), expressed by the formula: (perimeter ratio C (%)) / (winding softness (mm) of paper towel roll 40), is preferably 20 or more and 80 or less. If value D is less than 20, paper towel roll 40 will be crushed and deformed. On the other hand, if value D is greater than 80, tightness will be poor. The lower limit of the above range of value D is more preferably 30 or more, and even more preferably 35 or more. The upper limit of the above range of value D is more preferably 70 or less, and even more preferably 50 or less.

[0089] (Relationship between circumference ratio and winding density) Formula: (Percentage of circumference C (%)) / (Wrapping density of paper towel roll 40 (m / cm 2 )), the value E (hereinafter sometimes simply referred to as "value E") is preferably 180 or more and 450 or less. If the value E is less than 180, the tightness will be poor. On the other hand, if the value E is greater than 450, the paper towel roll 40 will be crushed and deformed. The lower limit of the above range of value E is more preferably 210 or more, and even more preferably 290 or more. The upper limit of the above range of value E is more preferably 410 or less, and even more preferably 370 or less.

[0090] (Drop from the top of the table) As shown in FIG. 6, in paper towel package 10 according to the present disclosure, the drop hd from top surface 101 of base 100 (hereinafter sometimes referred to as "drop hd from the base surface") is appropriately set.

[0091] As shown in FIG. 6, when measuring the drop hd from the table surface, first, paper towel package 10 is placed on table 100. Next, all paper towel packages 20 are moved to one side (left side in the figure) in the thickness direction (Z direction) within first exterior film 30. Next, paper towel package 20A, which is located on the other side (right side in the figure) in the thickness direction (Z direction) of the multiple paper towel packages 20, is dropped outside the edge of table 100. At this time, the other side surface in the thickness direction of paper towel package 20B, which is located next to paper towel package 20A, is positioned along the edge of table 100, and paper towel package 20A is dropped outside the edge of table 100. At this time, the drop hd of paper towel package 20A dropped from upper surface 101 of table 100 is measured. The drop hd of paper towel package 20A dropped from top surface 101 of platform 100 is measured at the four corners of the bottom surface of paper towel package 20A (four corners formed by the sides extending in the width direction and the sides extending in the thickness direction). Furthermore, paper towel package 10 is rotated about the X-axis, and the drop hd of paper towel package 20C, located on the opposite side of paper towel package 20A, is measured in the same manner as above. The eight measurements taken on both sides in the thickness direction are then averaged to determine the drop hd from the platform surface.

[0092] The drop hd from the base surface of the paper towel package 10 is 10 mm or more and 45 mm or less. If the drop hd from the base surface is less than 10 mm, the first exterior film 30 will wrap the paper towel roll 40 too tightly, causing it to be crushed and deformed. On the other hand, if the drop hd from the base surface is greater than 45 mm, tightness cannot be ensured. The lower limit of the above range of the drop hd from the base surface is preferably 14 mm or more, and more preferably 17 mm or more. The upper limit of the above range of the drop hd from the base surface is preferably 34 mm or less, and more preferably 28 mm or less. The drop hd from the base surface can be set within the above range by adjusting the size, winding softness, etc. of the first exterior film 30.

[0093] Although the present invention has been described above based on the above embodiment, the present invention is not limited to the content of the above embodiment, and can be modified as appropriate without departing from the scope of the present invention. In other words, all other embodiments, examples, operational techniques, etc. made by those skilled in the art based on this embodiment are naturally included in the scope of the present invention. [Example]

[0094] The present embodiment will be described in more detail below with reference to examples and comparative examples, but the present invention is not limited to the following examples.

[0095] (Examples 1 to 15 and Comparative Examples 1 to 6) Paper towel package packages of Examples 1 to 15 and Comparative Examples 1 to 6 were produced under the conditions shown in Tables 1 and 2. Each paper towel package was evaluated in the following five ways (evaluation of "tightness," evaluation of "roll deformation and scratches," evaluation of "water absorbency," evaluation of "sheet softness," and evaluation of "roll softness"). Each evaluation was performed after maintaining the package in an equilibrium state under the temperature and humidity conditions specified in JIS P8111 (23±1°C, 50±2% RH). Furthermore, each parameter other than the evaluations below was measured according to the standards or measurement methods described above.

[0096] (tightness) The "tightness" evaluation was a sensory evaluation by 20 monitors, who selected "good" or "bad" for the overall tightness of the packaging of the first and second outer films. The evaluation was based on the following criteria: 5 points: 18 or more people answered "good" 4 points: 14 to 17 people answered "Good" 3 points: 10 to 13 people answered "good" 2 points: 7 to 9 people answered "Good" 1 point: 6 or fewer people answered "good"

[0097] (Roll deformation, scratches) The evaluation of "roll deformation and scratches" was a sensory evaluation by 20 monitors, who selected "yes" or "no" for any deformation or scratches on the paper towel roll when opened and used. The evaluation was based on the following criteria: 5 points: 18 or more people answered "None" 4 points: 14 to 17 people answered "None" 3 points: 10 to 13 people answered "None" 2 points: 7 to 9 people answered "None" 1 point: 6 or fewer people answered "None"

[0098] (Water absorption) The "water absorbency" was evaluated by measuring the amount of water absorbed per unit area, and was evaluated according to the following criteria. 5 points: Water absorption per unit area is 400g / m 2 End 4 points: Water absorption per unit area is 340g / m 2 More than 400g / m 2 less than 3 points: Water absorption per unit area is 280g / m 2 More than 340g / m 2 less than 2 points: Water absorption per unit area is 260g / m 2 More than 280g / m 2 less than 1 point: Water absorption per unit area is 260g / m2 less than

[0099] (Softness of the seat) The evaluation of "sheet softness" was a sensory evaluation by 20 monitors, who selected "soft" or "hard" for the softness of the sheet when using the paper towel. The evaluation was based on the following criteria: 5 points: 18 or more people say "soft" 4 points: 14 to 17 people think it's "soft" 3 points: 10 to 13 people say "soft" 2 points: 7 to 9 people answered "soft" 1 point: 6 or fewer people say "soft"

[0100] (Softness of the roll) The "roll softness" was evaluated by measuring the winding softness, and was evaluated according to the following criteria. 5 points: The measurement result of the winding softness is 1.6 mm or more 4 points: The measurement result of the winding softness is 1.4 mm or more and less than 1.6 mm 3 points: The measurement result of the winding softness is 1.2 mm or more and less than 1.4 mm 2 points: The measurement result of the winding softness is 1.0 mm or more but less than 1.2 mm 1 point: The measurement result of the winding softness is less than 1.0 mm

[0101] The results obtained are shown in Tables 1 and 2.

[0102] [Table 1]

[0103] [Table 2]

[0104] As can be seen from Tables 1 and 2, according to the present disclosure, by adjusting the winding density, winding softness, film size, etc. of the paper towel roll to appropriately set the drop of the paper towel package from the top surface of the table, it is possible to provide a paper towel package that can tightly wrap even when film-wrapping two to five paper towel packages containing three rolls together, and that can prevent deformation of the paper towel roll while maintaining the softness and absorbency of the sheet and roll. [Explanation of symbols]

[0105] 10:Paper towel packaging 20, 20A, 20B, 20C: Paper towel packaging 30: First exterior film 40: Paper towel roll 40a: Paper towels 41: Core 50: Second exterior film 100: units 101:Top surface

Claims

1. A paper towel package package in which a plurality of paper towel packages containing three rolls are wrapped in a first outer film, The paper towel package is a package in which three rolls of paper towels, each rolled up into a roll, are arranged linearly in a first direction intersecting the axial direction and wrapped in a second exterior film, and two to five rolls are arranged in a second direction intersecting both the axial direction and the first direction and wrapped in the first exterior film, The winding density of the paper towel roll is 0.15 m / cm ２ 0.60m / cm or more ２ is as follows: The winding softness of the paper towel roll is 1.2 mm or more and 4.0 mm or less, the paper towel package is placed on a platform, all of the paper towel packages are moved to one side in the second direction, and the paper towel package located on the other side in the second direction is dropped outside the edge of the platform by a drop of 10 mm or more and 45 mm or less from the top surface of the platform; The water absorption capacity per unit area of the paper towel is 280 g / m ２ More than 570g / m ２ is A paper towel package characterized by:

2. The diameter of the paper towel roll is 125 mm or more and 175 mm or less.

2. The paper towel wrapper package of claim 1.

3. The basis weight of the paper towel product ply is 33 g / m ２ 65g / m or more ２ is 3. The paper towel package of claim 1 or claim 2.

4. The thickness of the paper towel is 2.0 mm / 10 ply or more and 5.0 mm / 10 ply or less.

3. The paper towel package of claim 1 or claim 2.

5. The water absorption amount per unit mass of the paper towel is 3.0 g / g or more and 12.0 g / g or less.

3. The paper towel package of claim 1 or claim 2.

6. The roll length of the paper towel roll is 20 m or more and 50 m or less.

3. The paper towel package of claim 1 or claim 2.

7. The paper towel has an embossed pattern, The embossing area ratio of the embossing is 8% or more and 20% or less.

3. The paper towel package of claim 1 or claim 2.

8. The weight of the paper towel roll per 280 mm width, excluding the core, is 190 g or more and 620 g or less.

3. The paper towel package of claim 1 or claim 2.

9. The roll density of the paper towel roll is 0.03 g / cm ３ 0.20g / cm or more ３ is 3. The paper towel package of claim 1 or claim 2.

10. The perimeter A of the second exterior film of the paper towel package before being wrapped in the first exterior film, when the second direction is taken as an axis, is 1300 mm or more and 1700 mm or less.

3. The paper towel package of claim 1 or claim 2.

11. The first exterior film of the paper towel package has a circumferential length B of 1260 mm or more and 2000 mm or less when the second direction is taken as an axis.

3. The paper towel package of claim 1 or claim 2.

12. The value (%) expressed by (perimeter B (mm) of the first exterior film of the paper towel package when the second direction is the axis) / (perimeter A (mm) of the second exterior film of the paper towel package before being wrapped with the first exterior film when the second direction is the axis) × 100 is 97% or more and 115% or less.

3. The paper towel package of claim 1 or claim 2.

13. The value expressed by {(perimeter B (mm) of the first exterior film of the paper towel package when the second direction is the axis) / (perimeter A (mm) of the second exterior film of the paper towel package before being wrapped with the first exterior film when the second direction is the axis) × 100} / (winding softness (mm) of the paper towel roll) is 20 or more and 80 or less.

3. The paper towel package of claim 1 or claim 2.

14. {(perimeter B (mm) of the first exterior film of the paper towel package when the second direction is taken as an axis) / (perimeter A (mm) of the second exterior film of the paper towel package before being wrapped with the first exterior film when the second direction is taken as an axis) × 100} / (winding density (m / cm) of the paper towel roll ２ )) is greater than or equal to 180 and less than or equal to 450 3. The paper towel package of claim 1 or claim 2.

15. The tensile strength DMDT in the MD direction of the paper towel product ply when dry according to JIS P 8113 is 6.0 N / 25 mm or more and 14.0 N / 25 mm or less.

3. The paper towel package of claim 1 or claim 2.

16. The tensile strength (DCDT) in the CD direction in a dry state based on JIS P 8113 of the paper towel product ply is 6.0 N / 25 mm or more and 14.0 N / 25 mm or less.

3. The paper towel package of claim 1 or claim 2.

17. The paper towel roll has a central cylindrical core, The apparent basis weight of the core is 200 g / m ２ More than 500g / m ２ is 3. The paper towel package of claim 1 or claim 2.

18. The paper towel roll has a central cylindrical core, The outer diameter of the core is 28 mm or more and 58 mm or less.

3. The paper towel package of claim 1 or claim 2.

19. The paper towel roll has a central cylindrical core, The core comprises LBKP (bleached hardwood kraft pulp).

3. The paper towel package of claim 1 or claim 2.

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