Rolled paper towel package

Abstract

To provide a rolled paper towel package capable of securing the beauty (tightness) of the package, the difficulty of breakage during carrying, the winding softness of a roll product, and the water absorbency of a sheet.SOLUTION: In the rolled paper towel package 10, the sinking depth of the packaging film 30 due to the weight of the second ruler is 3mm or more and 14mm or less, the value represented by the formula: (actual circumferential length of the packaging film 30) / (theoretical circumferential length of the packaging film 30) * 100 is 97 or more and 130 or less, and the water absorption amount per unit area of the paper towel is 210g / m2 or more and 520g / m2 or less. The roll densities are 0. 05g / cm3 or more and 0. 19g / cm3 or less, the winding diameters are 75mm or more and 160mm or less, the winding rigidities are 2mm or more and 7mm or less, and the value represented by the formula: (winding rigidity) / (sinking depth of the packaging film 30 due to the weight of the second ruler) is 0.3 or more and 1.8 or less.SELECTED DRAWING: Figure 1

Description

[Technical Field]

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

[0002] Due to their frequent use, rolled sanitary tissue paper products such as toilet rolls and rolled paper towels are often packaged in multi-roll packages containing multiple rolled products. Caramel packages, which are made by folding and heat-sealing a film such as polyethylene, are known as roll product packages containing multiple rolled products such as toilet rolls and kitchen towel rolls. Appropriate considerations have been given to the tightness and content specifications of such caramel packages in order to prevent film tearing during transport and to create film packages with excellent packaging aesthetics (e.g., Patent Document 1 and Patent Document 2).

[0003] Paper towels are required to have excellent absorbency for water and oil, and strength that allows them to withstand continuous use without easily tearing even when used for cleaning. To meet these requirements, a technology has been developed in which pulp is hydroentangled in a synthetic fiber nonwoven fabric (for example, Patent Document 3).

[0004] In the case of ordinary paper towels, adjusting the tightness of the packaging film can result in a package with excellent aesthetic appeal (e.g., Patent Document 4). However, in the case of paper towels containing synthetic fibers with high basis weight and excellent water absorption, the roll is soft, which results in poor film tension and heat-seal stability during packaging, making it impossible to package tightly, resulting in a package with poor aesthetic appeal. For example, while tightly winding the roll improves tightness and sealing, it also crushes the sheet, impairing its inherently good water absorption and softness. Furthermore, if the paper towels are packaged too tightly, there is a risk that the film will tear from the center of the side (the middle part between the rolls) when transported. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 2018-090255 [Patent Document 2] Japanese Patent Application Laid-Open No. 2013-082468 [Patent Document 3] Japanese Patent Application Publication No. 2018-193634 [Patent Document 4] Japanese Patent Application Publication No. 2018-90270 Summary of the Invention [Problem to be solved by the invention]

[0006] For these reasons, it has been difficult for conventional paper towels with high basis weight and excellent absorbency to achieve high levels of decorativeness (tightness) of the package, resistance to tearing during transport, and softness of the roll product.

[0007] Therefore, the present disclosure aims to provide a roll paper towel package in which multiple roll paper towels with a high basis weight and excellent absorbency in one ply are arranged side by side and wrapped in film, which ensures the aesthetic appeal (tightness) of the package, resistance to tearing when carried, and softness of the roll product. [Means for solving the problem]

[0008] In order to solve the above-mentioned problems, a first aspect of the present invention is a roll-shaped paper towel package comprising a plurality of roll-shaped paper towels, each formed by winding up a single ply of sheet-shaped paper towels made mainly of pulp and containing synthetic fibers, into a roll, and a packaging film for caramel-packaging the plurality of roll-shaped paper towels, wherein the roll-shaped paper towel package is placed so that the axial direction of the plurality of roll-shaped paper towels is horizontal, and a first stainless steel ruler weighing 64 g, having a thickness of 1.0 mm, a width of 25 mm, and a scale length of 300 mm is placed across two of the roll-shaped paper towels adjacent to each other in a first direction perpendicular to the axial direction, and the first ruler is placed so that its plate surface is in contact with the packaging film. When a second stainless steel ruler weighing 10 g, having a thickness of 0.5 mm, a width of 15 mm, and a scale length of 150 mm is placed perpendicularly to the packaging film with the width direction of the second ruler aligned with the first direction, the depth to which the packaging film sinks relative to the reference line due to the weight of the second ruler is 3 mm or more and 14 mm or less, the value expressed by the formula: (actual circumference of the packaging film) / (theoretical circumference of the packaging film calculated from the winding diameter of the rolled paper towel) × 100 is 97 or more and 130 or less, and the water absorption per unit area of ​​the paper towel is 210 g / m 2 More than 520g / m 2 The roll density of the rolled paper towel is 0.05 g / cm or less. 3 More than 0.19g / cm 3 The roll diameter of the rolled paper towel is 75 mm or more and 160 mm or less, the tightness of the rolled paper towel is 2 mm or more and 7 mm or less, and the value expressed by the formula: (tightness of the rolled paper towel) / (depth of sinking of the packaging film due to the weight of the second ruler) is 0.3 or more and 1.8 or less.

[0009] A second aspect of the present invention is the roll-shaped paper towel package of the first aspect, wherein the thickness of the packaging film is 20 μm or more and 55 μm or less.

[0010] A third aspect of the present invention is the roll-shaped paper towel package of the first aspect or the second aspect, wherein the basis weight of the paper towel is 40 g / m 2 More than 150g / m 2 The following is the result.

[0011] A fourth aspect of the present invention is the roll-shaped paper towel package of the first aspect or the second aspect, wherein the thickness of the paper towel is 200 μm or more and 1400 μm or less.

[0012] A fifth aspect of the present invention is the roll-shaped paper towel package of the first aspect or the second aspect, wherein the winding density of the roll-shaped paper towel is 0.10 m / cm 2 More than 0.30m / cm 2 The following is the result.

[0013] A sixth aspect of the present invention is a roll-shaped paper towel package according to the first or second aspect, wherein the packaging film has a longitudinal tensile strength (DMDT) based on JIS Z 1702 of 20 MPa or more and 70 MPa or less, and a cross tensile strength (DCDT) based on JIS Z 1702 of 10 MPa or more and 55 MPa or less.

[0014] A seventh aspect of the present invention is a roll-shaped paper towel package according to the first or second aspect, wherein the dry machine direction tensile strength (DMDT) of the paper towels according to JIS P 8113 is 8 N / 25 mm or more and 75 N / 25 mm or less, and the dry cross direction tensile strength (DCDT) of the paper towels according to JIS P 8113 is 2 N / 25 mm or more and 50 N / 25 mm or less.

[0015] An eighth aspect of the present invention is the roll-shaped paper towel package of the first aspect or the second aspect, wherein the water absorption per unit weight of the paper towel is 3.0 g / g or more and 8.0 g / g or less.

[0016] A ninth aspect of the present invention is the roll-shaped paper towel package according to the first aspect or the second aspect, wherein the packaging film has heat-sealability.

[0017] A tenth aspect of the present invention is the roll-shaped paper towel package according to the first or second aspect, wherein the paper towels are kitchen towels. [Effects of the Invention]

[0018] According to the present disclosure, in a roll paper towel package in which multiple roll paper towels with a high basis weight and excellent absorbency are arranged in a single ply and packaged in film, it is possible to ensure the aesthetic appeal (tightness) of the package, resistance to tearing when carried, and softness of the roll product. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a perspective view of a roll-shaped paper towel package according to one embodiment of the present invention. FIG. [Figure 2] 2 is a schematic plan view showing the top surface of the roll-shaped paper towel package of FIG. 1. FIG. [Figure 3] FIG. 1 is a perspective view of a roll of paper towels. [Figure 4] FIG. 2 is an explanatory diagram showing a method for measuring the amount of water absorption. [Figure 5] FIG. 1 is a diagram showing a method for measuring the sinking depth of a packaging film in a roll-shaped paper towel package. [Figure 6] 1A and 1B are explanatory diagrams of the theoretical circumference of packaging film, where (a) shows the case of two rolls, (b) shows the case of three rolls, and (c) shows the case of four rolls. DETAILED DESCRIPTION OF THE INVENTION

[0020] Hereinafter, one embodiment of the present invention will be described in detail. However, the following embodiment is presented for illustrative purposes, and the present invention is not limited to the embodiment shown below.

[0021] <Paper towel roll packaging> Fig. 1 is a perspective view of a roll-shaped paper towel package according to one embodiment of the present invention, and Fig. 2 is a schematic plan view showing the top surface of the roll-shaped paper towel package of Fig. 1.

[0022] As shown in Figures 1 and 2, a roll-shaped paper towel package 10 according to this embodiment (hereinafter sometimes simply referred to as "package 10") includes a plurality of roll-shaped paper towels 20 each formed by winding up a single-ply sheet-like paper towel 20a (see Figure 3) made primarily of pulp and containing synthetic fibers, and a packaging film 30 for caramel-wrapping the plurality of roll-shaped paper towels 20. In this embodiment, the roll-shaped paper towels 20 are packaged in the packaging film 30 so that the axial direction of the roll-shaped paper towels 20 coincides with the MD (machine direction) direction of the packaging film 30. Note that, below, a roll-shaped paper towel package 10 in which two rolls of roll-shaped paper towels 20 are packaged will be described, but the number of roll-shaped paper towels 20 stored is not limited to this, and the package 10 may store at least two rolls of roll-shaped paper towels 20.

[0023] The details of each component are as follows:

[0024] As shown in Figures 1 and 2, the roll paper towel package 10 is made up of two rolls of paper towels 20a wound into a roll, and is caramel-wrapped in a packaging film 30 so that both end faces in the width direction (axial direction) of the roll paper towels 20 face the top surface 11 and bottom surface 12 of the package 10, respectively.

[0025] A plurality of rolled paper towels 20 are arranged in parallel with their axial directions parallel to each other and are then wrapped in a caramel-wrapped packaging film 30. Caramel-wrapped packaging is well known. For example, a plurality of rolled paper towels 20 are placed on a sheet-like packaging film 30, and the packaging film 30 is then wrapped around the periphery of the rolled paper towels 20 to form a cylindrical shape. Alternatively, a plurality of rolled paper towels 20 are inserted coaxially into one axial end of a pre-formed cylindrical packaging film 30. Two opposing flap-shaped edges of the packaging film 30 that extend beyond both ends of the plurality of rolled paper towels 20 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 (heat-sealed) by heat fusion or the like. In other words, the packaging film 30 preferably has heat-sealing properties that allow for heat sealing.

[0026] <Packaging film> The packaging film 30 may be formed of a single layer or multiple layers. The material of the packaging film 30 is preferably a thermoplastic resin suitable for recycling. Specific examples include thermoplastic resins such as polyolefin (polyethylene, polypropylene, etc.), polyester (PET, etc.), polyamide (nylon, etc.), polycarbonate, polystyrene, and polyvinyl chloride. Among these, polyethylene film is preferred from the viewpoint of fully exerting the effects of this embodiment.

[0027] (Thickness of packaging film) The thickness of the packaging film 30 is preferably 20 μm or more and 55 μm or less. If the thickness of the packaging film 30 is less than 20 μm, packaging defects such as scorch are more likely to occur, and the aesthetic appeal of the roll-shaped paper towel package 10 is poor. On the other hand, if the thickness of the packaging film 30 exceeds 55 μm, packaging defects are more likely to occur, and the aesthetic appeal of the roll-shaped paper towel package 10 is poor. The thickness of the packaging film 30 can be measured in accordance with JIS B 7503. The lower limit of the above thickness range of the packaging film 30 is more preferably 25 μm, and even more preferably 30 μm. The upper limit of the above thickness range of the packaging film 30 is more preferably 45 μm, and even more preferably 40 μm.

[0028] (Tensile strength of packaging film) The tensile strength (DMDT (Dry Machine Direction Tensile Strength)) of the packaging film 30 in the longitudinal direction (MD direction) based on JIS Z 1702 is preferably 20 MPa or more and 70 MPa or less. Furthermore, the tensile strength (DCDT (Dry Cross Direction Tensile Strength)) of the packaging film 30 in the transverse direction (CD (Cross Direction)) based on JIS Z 1702 is preferably 10 MPa or more and 55 MPa or less. Setting the tensile strength of the packaging film 30 within the above range tends to ensure the aesthetic appeal (tightness) of the package and tear resistance during transport. The lower limit of the above range of the DMDT of the packaging film 30 is more preferably 25 MPa, and even more preferably 30 MPa. The upper limit of the above range of the DMDT of the packaging film 30 is more preferably 60 MPa, and even more preferably 55 MPa. The lower limit of the above range of the DCDT of the packaging film 30 is more preferably 15 MPa, and even more preferably 20 MPa. Moreover, the upper limit of the above range of DCDT of the packaging film 30 is more preferably 50 MPa, and even more preferably 45 MPa.

[0029] <Rolled paper towels> FIG. 3 is a perspective view of a roll of paper towels.

[0030] The rolled paper towel 20 of this embodiment is a rolled paper towel 20 in which one ply of paper towel 20a containing pulp fibers and synthetic fibers is wound into a roll. Preferably, the paper towel 20a has perforations (not shown) in the CD (width) direction at equal intervals in the MD (machine direction) from the outermost wound edge 21 of the paper towel 20a.

[0031] In this case, the MD direction is the direction in which the paper towel 20a is wound (the direction in which the paper towel 20a is manufactured, also called the flow direction), and the CD direction is the direction perpendicular to the MD direction (also called the width direction).

[0032] The paper towel 20a according to the present disclosure can be used as a variety of paper products, and is preferably used as a wiper or kitchen towel, more preferably as a kitchen towel. Furthermore, although the present invention is a paper product used as a wiper or kitchen towel, it may also be used as a nonwoven fabric product.

[0033] Rolled paper towel 20 has core 22, such as a cylindrical paper core or cylindrical space, in the center, with an outer diameter (roll diameter) DR and an outer diameter DI of core 22. Of the two surfaces of paper towel 20a, the surface facing the outside of rolled paper towel 20 is called front surface 23 of paper towel 20a, and the surface facing core 22 of rolled paper towel 20 is called back surface 24 of paper towel 20a. The following are typical characteristics of rolled paper towel 20.

[0034] (Volume length) The roll length of the rolled paper towels 20 is preferably 7 m or more and 24 m or less. If the roll length of the rolled paper towels 20 is less than 7 m, the roll will be loosely wound to ensure a specified roll diameter, resulting in poor tension in the packaging film 30 during packaging and poor heat-seal stability, making it difficult to package tightly and resulting in poor aesthetic appeal for the package 10. On the other hand, if the roll length of the rolled paper towels 20 exceeds 24 m, the roll will tend to be tightly wound, improving the tightness and sealing, but conversely, the paper towels 20a will be crushed, impairing their inherently good absorbency and softness. Furthermore, if the paper towels are packaged too tightly, the packaging film 30 may tear from the center of the side (the middle between the rolls) during transport. The lower limit of the above range of the roll length of the rolled paper towels 20 is more preferably 10 m, and even more preferably 13 m. The upper limit of the above range of the roll length of the rolled paper towels 20 is more preferably 22 m, and even more preferably 18 m.

[0035] The roll length is determined by measuring the length of 10 sheets of paper towels 20a, which are the sheets between the perforations in rolled paper towels 20. The number of paper towels 20a in rolled paper towels 20 is then measured, and the roll length is calculated proportionally from the length of 10 sheets and the number of paper towels 20a. For example, if the length of 10 sheets is 1.80 m and there are 120 paper towels 20a, the roll length is 1.80 m × (120 / 10) = 21.6 m. Note that if there are no perforations, the roll length is measured.

[0036] (roll diameter) The roll diameter DR of the roll-shaped paper towel 20 is 75 mm or more and 160 mm or less. If the roll diameter DR of the roll-shaped paper towel 20 is less than 75 mm, the roll diameter DR will be too small, resulting in a tightly wound roll product with poor winding softness. On the other hand, if the roll diameter DR of the roll-shaped paper towel 20 exceeds 160 mm, the roll diameter DR will be too large, making it difficult to carry and less likely to tear when carried. The lower limit of the above range of the roll diameter DR of the roll-shaped paper towel 20 is preferably 100 mm, and more preferably 108 mm. The upper limit of the above range of the roll diameter DR of the roll-shaped paper towel 20 is more preferably 140 mm, and even more preferably 130 mm.

[0037] The roll diameter DR of the roll is measured using a diameter rule manufactured by Muratec KDS Co., Ltd. The measurement is carried out by measuring 10 rolled paper towels 20 and averaging the measurement results.

[0038] (roll width) The roll width of the rolled paper towel 20 is preferably 180 mm or more and 350 mm or less. By setting the roll width within this range, when using a high-basis-weight rolled paper towel 20 containing synthetic fibers as in the present application, the area used is appropriate, and the rolled product is easy to use. The lower limit of the above range of the roll width of the rolled paper towel 20 is more preferably 210 mm, and even more preferably 240 mm. The upper limit of the above range of the roll width of the rolled paper towel 20 is more preferably 325 mm, and even more preferably 300 mm.

[0039] (roll weight) The roll weight of the rolled paper towel 20 is preferably 100 g or more and 580 g or less. By setting the roll weight within this range, it is possible to obtain a rolled paper towel 20 and a rolled paper towel package 10 that are easy to handle as roll products. The lower limit of the above range of the roll weight of the rolled paper towel 20 is more preferably 180 g, and even more preferably 220 g. The upper limit of the above range of the roll weight of the rolled paper towel 20 is more preferably 450 g, and even more preferably 400 g. The roll weight is the weight of one roll per 280 mm of roll width, not including the core 22 (core paper tube). If the roll width is not 280 mm, it is converted to the weight per 280 mm by proportional calculation.

[0040] (roll density) The roll density of the rolled paper towel 20 is 0.05 g / cm 3 More than 0.19g / cm 3 The roll density of the rolled paper towel 20 is 0.05 g / cm or less. 3 If the density is less than 0.19 g / cm, the wrapping will be too loose, resulting in poor tension in the packaging film 30 during packaging and poor heat sealing stability, making it impossible to package tightly and resulting in poor aesthetic appeal for the package 10. Furthermore, the inner wrapping force may be too weak, causing the inner wrapping side of the rolled paper towel 20 to protrude in the axial direction, resulting in defective products. On the other hand, if the roll density of the rolled paper towel 20 is 0.19 g / cm, 3 If the density exceeds 0.07 g / cm, the paper towel roll 20a will be wound too tightly, resulting in good tightness and sealing, but conversely, the paper towel 20a will be crushed, impairing its inherent good water absorption and softness. Also, if the paper towel roll 20a is wrapped too tightly, there is a risk that the packaging film 30 will tear from the center of the side (the middle part between the rolls) when it is carried. The lower limit of the above range of the roll density of the rolled paper towel 20 is 0.07 g / cm. 3 More preferably, it is 0.09 g / cm 3 The upper limit of the above range of the roll density of the rolled paper towel 20 is 0.17 g / cm. 3More preferably, it is 0.15 g / cm 3 It is more preferable that:

[0041] The roll density of the rolled paper towel 20 is calculated from the following formula (1). Roll density = (roll weight) / (roll volume) = (roll weight) / [{cross-sectional area of ​​the roll outer diameter (winding diameter DR)} - (cross-sectional area of ​​the core outer diameter DI)] × roll width (calculated based on 280 mm) (1) For example, if the roll weight per 280 mm of roll width is 327 g, the winding diameter DR is 122 mm, and the core outer diameter DI is 39 mm, the roll density = 327 g ÷ [{3.14 × (122 mm ÷ 2 ÷ 10) 2 -3.14×(39mm÷2÷10) 2}×(280mm÷10)]=0.11g / cm 3 If the rolled paper towel 20 does not have a core 22, the diameter of the central hole is taken as the core outer diameter DI.

[0042] (winding density) The winding density of the rolled paper towel 20 is 0.10 m / cm 2 More than 0.30m / cm 2 The winding density of the rolled paper towel 20 is preferably 0.10 m / cm or less. 2 If the winding density of the rolled paper towel 20 is less than 0.30 m / cm, the rolled paper towel 20 will be bulky and it will be difficult to improve the water absorption capacity. 2 If the winding density of the rolled paper towel 20 exceeds 0.12 m / cm, the paper thickness and specific volume will be reduced, and the water absorption capacity will be poor. 2 More preferably, it is 0.14 m / cm 2 The upper limit of the above range of the winding density of the rolled paper towel 20 is 0.23 m / cm. 2 More preferably, it is 0.20 m / cm 2 It is more preferable that:

[0043] The winding density is expressed as (winding length × number of plies) ÷ (cross-sectional area of ​​the roll). The cross-sectional area of ​​the roll is expressed as {cross-sectional area of ​​the outer diameter part of the roll (winding diameter DR) - (cross-sectional area of ​​the outer diameter part of the core (paper tube))}. The core outer diameter DI is the diameter of the center hole of the roll. If the rolled paper towel 20 does not have a core 22, the diameter of the center hole is taken as the core outer diameter DI.

[0044] (Rolling hardness) The tightness of the rolled paper towel 20 is 2 mm or more and 7 mm or less. If the tightness of the rolled paper towel 20 is less than 2 mm, the rolled paper towel 20 will be too tightly wound, resulting in good tightness and sealing, but conversely, the paper towels 20a will be crushed, impairing their inherent good water absorbency and softness. Furthermore, if the rolled paper towel 20 is wrapped too tightly, the packaging film 30 may tear from the center of the side (the middle part between the rolls) during transport. On the other hand, if the tightness of the rolled paper towel 20 exceeds 7 mm, the rolled paper towel 20 will be wrapped too loosely, resulting in poor tension in the packaging film 30 during packaging and poor heat sealing stability, making it impossible to wrap tightly and resulting in poor aesthetic appeal of the package 10. Furthermore, the inner winding force may be too weak, causing the inner side of the rolled paper towel 20 to protrude in the axial direction, resulting in defective products. The lower limit of the above range of the tightness of the rolled paper towel 20 is more preferably 2.5 mm, and even more preferably 3.0 mm. The upper limit of the above range of the winding tightness of the rolled paper towel 20 is more preferably 6.5 mm, and even more preferably 6.0 mm.

[0045] The tightness of the roll of paper towels 20 is measured using a compression tester (KES-G5 compression tester manufactured by Kato Tech Co., Ltd.) as follows: First, the roll of paper towels 20 is placed horizontally on a hard table with the axis horizontal. Next, an acrylic plate (width 4 cm, long side length 29 cm, thickness 2 mm) is placed on top of the roll of paper towels 20 with the long side of the acrylic plate parallel to the width direction of the roll (approximately 280 mm). At this time, the weight of the acrylic plate is set to approximately 27 g so that the weight of the acrylic plate does not crush the roll of paper towels 20. Next, the compression element of the KES-G5 (area 2.0 cm) is placed in the center of the acrylic plate.2 ) is pressed at a speed of 0.01 cm / sec. The pressure of the compressor pressing the acrylic plate is 0.5 gf / cm 2 The indentation depth when the pressure is 250gf / cm is T0. 2 The compression depth at this point is defined as Tm, and the difference between Tm and T0 (Tm - T0) is defined as the roll hardness. In this way, by using an acrylic plate instead of directly compressing the rolled paper towel 20 with the compression element, it is possible to compress the rolled paper towel 20 across its entire width, making it possible to evaluate the crushability of the rolled paper towel 20 when packaged in a packaging film. Measurements are taken of 10 rolled paper towels 20, and the results are averaged. Note that the physical property of roll hardness is a complex combination of multiple factors, such as the physical properties of the base paper (basis weight, thickness, raw material composition, compression characteristics such as cushioning in the thickness direction, surface properties, etc.), the embossing process (embossing shape, area, depth, etc.), and the degree of winding during the winding process. Since it is difficult to define each physical property individually, in this application, roll hardness is defined as an index.

[0046] (core) Core 22 is located at the center of rolled paper towel 20 and is a generally circular section around which paper towels 20a are wound, and the core 22 of rolled paper towel 20 may have a paper tube inserted therein or may be hollow. Core 22 is made of multiple layers of base paper, preferably two layers.

[0047] (Core outer diameter) The core outer diameter DI is the outer diameter of the core 22 (such as a paper tube or hollow portion), and is preferably 25 mm or more and 55 mm or less. By setting the core outer diameter DI within the above range, it is possible to wrap an amount of paper towels 20a around one roll of paper towels 20 without causing deterioration during its use. The lower limit of the above range of the core outer diameter DI is more preferably 32 mm, and even more preferably 36 mm. The upper limit of the above range of the core outer diameter DI is more preferably 47 mm, and even more preferably 42 mm.

[0048] <Paper towels> The paper towel 20a used in this embodiment is a single-ply sheet-shaped paper towel 20a primarily made of pulp and containing synthetic fibers. Examples of synthetic fibers include nylon, vinylon, polyester, acrylic, polyethylene, polypropylene, and polystyrene. While there are no limitations on the nonwoven fabric used as the synthetic fiber, spunbond nonwoven fabric is preferred. The pulp fiber is also not particularly limited, but it is preferred that the NBKP (softwood bleached kraft pulp) content be in the range of 50% to 100% by weight, 70% to 100% by weight, or 90% to 100% by weight, and the LBKP (hardwood bleached kraft pulp) content be in the range of 50% to 30% by weight, or 10% to 10% by weight. Preferred NBKP fibers are those made from radiata pine, slash pine, southern pine, lodgepole pine, spruce, and Douglas fir. Note that NUKP can be used instead of NBKP, and LUKP can be used instead of LBKP. In this case, the synthetic fiber content in paper towel 20a is preferably in the range of 5% to 45%, 9% to 38%, or 12% to 28%. Furthermore, the pulp fiber content in paper towel 20a is preferably in the range of 55% to 95%, 62% to 91%, or 72% to 88%.

[0049] When the paper towel 20a contains such synthetic fibers and pulp fibers, it is possible to obtain a paper towel 20a with excellent water absorbency with a single ply.

[0050] (Basic weight) The basis weight per ply of the paper towel 20a is 40 g / m 2 More than 150g / m 2 The basis weight of the paper towel 20a is preferably 40 g / m or less. 2 If the basis weight of the paper towel 20a is less than 150 g / m, the durability and absorbency will be poor, and the paper towel 20a will be less usable as a roll product.2 If the thickness exceeds 1000 μm, the rolled product will be too tightly wound or the roll diameter DR will be too large, making it less user-friendly as a roll product. The basis weight of the paper towel 20a can be measured in accordance with JIS P 8124. The lower limit of the above range of basis weight per ply of the paper towel 20a is 48 g / m 2 More preferably, it is 55 g / m 2 The upper limit of the above range of the basis weight per ply of the paper towel 20a is 110 g / m 2 More preferably, it is 80 g / m 2 It is more preferable that:

[0051] (paper thickness) The paper thickness per ply of the paper towel 20a is preferably 200 μm or more and 1400 μm or less. If the paper thickness is less than 200 μm, the water absorbency will be poor, making the roll product less user-friendly. If the paper thickness exceeds 1400 μm, the roll will be too tightly wound or the roll diameter DR will be too large, making the roll product less user-friendly. The lower limit of the above range of the paper thickness per ply of the paper towel 20a is more preferably 400 μm, and even more preferably 500 μm. The upper limit of the above range of the paper thickness per ply of the paper towel 20a is more preferably 1200 μm, and even more preferably 1000 μm.

[0052] The thickness of each ply of paper towel 20a is measured using a thickness gauge (a dial thickness gauge "PEACOCK" manufactured by Ozaki Seisakusho Co., Ltd.). The measurement conditions are a measurement load of 3.7 kPa, a probe diameter of 29 mm, and a sample placed between the probe and the measuring table. The gauge is read when the probe is lowered at a speed of 1 mm per second or less. The measurement is repeated 10 times and the measurement results are averaged. The measurement is performed by stacking three paper towels 20a, and the value is divided by one-third to obtain the paper thickness value.

[0053] (Paper towel tensile strength) The DMDT (machine direction tensile strength) of the paper towel 20a in a dry state according to JIS P 8113 is preferably 8 N / 25 mm or more and 75 N / 25 mm or less. If the DMDT is less than 8 N / 25 mm, the strength will be too weak, resulting in poor usability as a roll product. On the other hand, if the DMDT exceeds 75 N / 25 mm, the basis weight of the paper towel 20a will be high, resulting in an excessively tightly wound roll or an excessively large roll diameter DR, resulting in poor usability as a roll product. The lower limit of the above range of the DMDT of the paper towel 20a is more preferably 13 N / 25 mm, and even more preferably 20 N / 25 mm. The upper limit of the above range of the DMDT of the paper towel 20a is more preferably 65 N / 25 mm, and even more preferably 50 N / 25 mm.

[0054] Furthermore, the tensile strength (DCDT) of the paper towel 20a in the CD direction when dry, based on JIS P 8113, is preferably 2 N / 25 mm or more and 50 N / 25 mm or less. If the DCDT is less than 2 N / 25 mm, the strength will be too weak, resulting in poor usability as a roll product. On the other hand, if the DCDT exceeds 50 N / 25 mm, the basis weight of the paper towel 20a will be high, resulting in the paper towel being wound too tightly or the roll diameter DR becoming too large, resulting in poor usability as a roll product. The lower limit of the above range of the DCDT of the paper towel 20a is more preferably 4 N / 25 mm, and even more preferably 5 N / 25 mm. The upper limit of the above range of the DCDT of the paper towel 20a is more preferably 40 N / 25 mm, and even more preferably 25 N / 25 mm.

[0055] The DMDT and DCDT of the paper towel 20a are measured based on JIS P 8113 as described above, with the measurement conditions being a speed of 300 m / min, a test piece width of 25 mm, and a distance between grippers of 100 mm. Note that if a distance of 100 mm between grippers cannot be ensured due to the spacing of the perforations and the sheet width (roll width), the distance may be shortened as appropriate.

[0056] (seat length) The sheet length of the paper towel 20a is preferably 160 mm or more and 330 mm or less. By having the sheet length within the above numerical range, it is possible to obtain a roll-shaped paper towel 20 and a roll-shaped paper towel package 10 that are easy to use as roll products. The sheet length of the paper towel 20a is the actual measurement value of the length in the MD direction of one paper towel 20a between perforations of the roll-shaped paper towel 20. The lower limit of the above range of the sheet length of the paper towel 20a is more preferably 180 mm, and even more preferably 200 mm. The upper limit of the above range of the sheet length of the paper towel 20a is more preferably 305 mm, and even more preferably 280 mm.

[0057] (Water absorption) Per unit area of ​​20a of paper towel (1m 2 The water absorption capacity per unit is 210g / m 2 More than 520g / m 2 The water absorption per unit area of ​​the paper towel 20a is 210 g / m 2 If the water absorption per unit area of ​​the paper towel 20a is less than 520 g / m, the water absorption will be poor, making it less convenient to use as a roll product. 2 If the water absorption per unit area of ​​the paper towel 20a exceeds 260 g / m, the basis weight of the paper towel 20a will be too high, causing the paper towel 20a to be wound too tightly or the roll diameter DR to be too large, resulting in poor usability as a roll product. 2 More preferably, it is 310 g / m 2 The upper limit of the above range of the water absorption per unit area of ​​the paper towel 20a is 430 g / m 2 More preferably, it is 400 g / m 2 It is more preferable that:

[0058] The water absorption per unit weight (per 1 g) of the paper towel 20a is preferably 3.0 g / g or more and 8.0 g / g or less. When the water absorption per unit weight of the paper towel 20a is within the above numerical range, it is possible to obtain a single-ply rolled paper towel 20 containing synthetic fibers with a high basis weight, and a rolled paper towel package 10 that is easy to use as a roll product. The lower limit of the above range of the water absorption per unit weight of the paper towel 20a is more preferably 3.5 g / g, and even more preferably 4.0 g / g. The upper limit of the above range of the water absorption per unit weight of the paper towel 20a is more preferably 7.5 g / g, and even more preferably 7.0 g / g.

[0059] The water absorption amount of each paper towel 20a is measured as follows.

[0060] FIG. 4 is an explanatory diagram showing a method for measuring the amount of water absorption.

[0061] First, a paper towel 20a is taken and cut using a square template with each piece measuring 7.6 cm (3 inches) to prepare a rectangular test piece 200 with each side measuring 7.6 cm. Thereafter, the weight of the test piece 200 before water absorption is measured using an electronic balance. Then, the test piece 200 is set in a holder 220 (a jig that fixes three points of the test piece 200, and the jig is made of a metal that does not absorb water).

[0062] Next, distilled water is poured into a commercially available tray to a depth of 2 cm, and the test specimen 200 set in the holder 220 is immersed in the distilled water for 2 minutes. After immersion for 2 minutes, the test specimen 200 and holder 220 are removed from the distilled water, and as shown in Figure 4, a band 210 is attached to one corner 200d of the test specimen 200. The band 210 is made by cutting the same paper towel 20a as the sample to be measured into a size of 2 mm wide x 15 mm long and attaching it to a section 6 mm from the corner 200d toward the center of the test specimen 200. Next, the holder 220 and test specimen 200 are hung from a rod installed in an empty water tank with the corner 200a opposite the corner 200d facing up, and the lid of the water tank is closed and left for 10 minutes. Thereafter, the holder 220 and test specimen 200 are removed from the water tank, the band 210 and holder 220 are removed, and the weight of the test specimen 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 (water) / m 2 (paper towel)). In addition, the water absorption per unit area (g(water) / m 2 (paper towel)) by the basis weight of the test piece 200 to obtain the water absorption per unit area (g(water) / m 2 (Paper towel)) / basis weight(g(Paper towel) / m 2 Calculate the amount of water absorbed per unit weight (g (water) / g (paper towel)) = g (water) / g (paper towel)). Measurements are taken five times for each sample, and the average value is used.

[0063] This measurement is carried out at a temperature of 23±1°C and humidity of 50±2% in accordance with JIS P 8111. The distilled water is kept at 23±1°C.

[0064] <Other characteristics of roll paper towel packaging> The roll paper towel package 10 of the present disclosure is a roll paper towel package 10 in which multiple roll paper towels 20, which are one-ply, have a high basis weight and excellent absorbency, are arranged side by side and packaged in film, and has the following characteristics to ensure the package 10 is aesthetically pleasing (tight) and difficult to tear when carried.

[0065] (tightness) Fig. 5 is a diagram showing a method for measuring the sinking depth of the packaging film in a roll-type paper towel package. Fig. 5 shows the roll-type paper towel package 10 placed on a platform B as viewed from a direction along the axial direction of the roll-type paper towel 20. In the figure, arrow X indicates the upward direction, and arrow Y indicates the first direction.

[0066] The tightness is the sinking depth d of the packaging film 30 due to the weight of the second ruler R when the first ruler S is placed across two adjacent rolls of paper towels 20 and the second ruler R is placed on the packaging film 30 located between the two rolls of paper towels 20 (hereinafter, sometimes simply referred to as the "sinking depth d of the packaging film 30").

[0067] The sinking depth d of the packaging film 30 is 3 mm or more and 14 mm or less. By setting the sinking depth d of the packaging film 30 within this range, the aesthetic appeal (tightness) of the package 10 and its resistance to tearing during transport can be ensured. The lower limit of the above range of the sinking depth d of the packaging film 30 is more preferably 4 mm, and even more preferably 5 mm. The upper limit of the above range of the sinking depth d of the packaging film 30 is more preferably 12 mm, and even more preferably 10 mm.

[0068] The sinking depth d of the packaging film 30 is measured as shown in FIG.

[0069] First, as shown in FIG. 5, the roll-shaped paper towel package 10 is placed on a table B or the like so that the axial direction of the roll-shaped paper towels 20 is horizontal. Next, a stainless steel first ruler S is placed across two adjacent roll-shaped paper towels 20 in a first direction (the direction indicated by arrow Y in FIG. 5) perpendicular to the axial direction of the roll-shaped paper towels 20, with its plate surface in contact with the packaging film 30. The surface (line) of the first ruler S that contacts the packaging film 30 is designated as the reference line SL (indicated by the two-dot chain line in FIG. 5). Next, a stainless steel second ruler R is placed on the packaging film 30 located between the two adjacent roll-shaped paper towels 20. When placing this second ruler R, the second ruler R is placed perpendicular to the packaging film 30, approximately in the center of the packaging film 30 in the first direction between the two adjacent roll-shaped paper towels 20, with the width direction Rw of the second ruler R aligned with the first direction. Then, the sinking depth d of the packaging film 30 due to the weight of the second ruler R relative to the height position of the reference line SL of the first ruler S is measured. The first ruler S used has a weight of 64 g, a thickness of 1.0 mm, a width of 25 mm, and a scale length of 300 mm. The second ruler R used has a weight of 10 g, a thickness of 0.5 mm, a width of 15 mm, and a scale length of 150 mm. For example, the "Silver Ruler" by Shinwa Measuring Instruments Co., Ltd. can be used as the first ruler S and the second ruler R.

[0070] The sinking depth d of the packaging film 30 is measured at three locations: 25% of the axial length of the roll-shaped paper towel package 10 from both ends of the roll-shaped paper towel package 10 in the axial direction (axial direction of the roll-shaped paper towel 20), and at the center in the axial direction. Measurements are also taken on the front and back of one roll-shaped paper towel package 10. This is done for five roll-shaped paper towel packages 10, and the sinking depth d values ​​of a total of 30 locations are averaged and used as the sinking depth d of the packaging film 30.

[0071] (Rolling hardness / tightness) A value A1 expressed by the following formula (2) using the tightness of the rolled paper towel 20 and the sinking depth d of the packaging film 30 due to the weight of the second ruler R is 0.3 or more and 1.8 or less. Value A1 = (tightness of rolled paper towel 20) / (depth d of packaging film 30 sinking due to the weight of second ruler R) (2) Setting the value A1 within the above range ensures the aesthetic appeal (tightness) of the package 10 and makes it less likely to tear when carried. The lower limit of the above range of value A1 is more preferably 0.4, and even more preferably 0.5. The upper limit of the above range of value A1 is more preferably 1.6, and even more preferably 1.3.

[0072] (Actual film circumference / Theoretical film circumference) The value A2 expressed by the following formula (3) using the actual circumference P1 of the packaging film 30 in the roll-shaped paper towel package 10 and the theoretical circumference P2 of the packaging film 30 calculated from the roll diameter DR of the roll-shaped paper towel 20 is 97 or more and 130 or less. Value A2 = (actual circumference P1 of packaging film 30) / (theoretical circumference P2 of packaging film 30 calculated from the roll diameter DR of rolled paper towel 20) × 100 (3) Setting the value A2 within the above range ensures the aesthetic appeal (tightness) and tear resistance of the package 10 when carried. The lower limit of the above range of the value A2 is more preferably 99, and even more preferably 100. The upper limit of the above range of the value A2 is more preferably 120, and even more preferably 115.

[0073] The theoretical circumference P2 of the packaging film 30 is calculated from the winding diameter DR of the rolled paper towels 20, and can be determined, for example, as follows: Note that the following explanation is an example, and even if the number of rolled paper towels 20 is the same, the length may differ depending on the arrangement position of the rolled paper towels 20.

[0074] 6 is an explanatory diagram of the theoretical circumference of the packaging film, where (a) shows the case of two rolls, (b) shows the case of three rolls, and (c) shows the case of four rolls. Note that Fig. 6 shows the roll-shaped paper towel package 10 as viewed from the direction along the axial direction of the roll-shaped paper towel 20.

[0075] 6(a), the theoretical perimeter P2 of the packaging film 30 when storing two rolls of rolled paper towels 20 is made up of two lengths L1 that are half the perimeter of the rolled paper towels 20 (roll diameter DR × pi (3.14) / 2) and four lengths L2 that are the radius (roll diameter DR / 2) of the rolled paper towels 20. Therefore, the theoretical perimeter P2 of the packaging film 30 when storing two rolls of rolled paper towels 20 is expressed by the following formula (4). Circumference P2 in the case of two rolls = (L1 × 2) + (L2 × 4) = (reel diameter DR × pi / 2 × 2) + (reel diameter DR / 2 × 4) = (reel diameter DR × pi) + (reel diameter DR × 2) (4)

[0076] 6(b), the theoretical circumference P2 of the packaging film 30 when three rolls of rolled paper towels 20 are stored in a row is made up of two lengths L1 that are half the circumference of the rolled paper towels 20 (roll diameter DR × pi / 2) and eight lengths L2 that are the radius of the rolled paper towels 20 (roll diameter DR / 2). Therefore, the theoretical circumference P2 of the packaging film 30 when three rolls of rolled paper towels 20 are stored is expressed by the following formula (5). Circumference P2 in the case of three rolls = (L1 × 2) + (L2 × 8) = (reel diameter DR × pi / 2 × 2) + (reel diameter DR / 2 × 8) = (reel diameter DR × pi) + (reel diameter DR × 4) (5)

[0077] 6(c), the theoretical circumference P2 of the packaging film 30 when four rolls of rolled paper towels 20 are stored in two rows of two rolls each is made up of four lengths L3 that are one-fourth the circumference of the rolled paper towels 20 (roll diameter DR × pi / 4) and eight lengths L2 that are the radius (roll diameter DR / 2) of the rolled paper towels 20. Therefore, the theoretical circumference P2 of the packaging film 30 when four rolls of rolled paper towels 20 are stored is expressed by the following formula (6). Circumference P2 in the case of 4 rolls = (L3 × 4) + (L2 × 8) = (reel diameter DR × pi / 4 × 4) + (reel diameter DR / 2 × 8) = (reel diameter DR × pi) + (reel diameter DR × 4) (6)

[0078] The actual perimeter P1 of the packaging film 30 can be determined by measuring the perimeter of the packaging film 30 of the roll-shaped paper towel package 10. When measuring the actual perimeter P1 of the packaging film 30, the overlapping portion (the portion where the packaging film 30 overlaps for bonding) is measured as the length of one sheet.

[0079] (Paper towels and methods for manufacturing rolled paper towels) Regarding the manufacturing method of the paper towel 20a and the rolled paper towel 20, when the paper towel 20a is a kitchen towel containing synthetic fibers and pulp fibers, it can be manufactured, for example, by (1) laminating pulp fibers on a predetermined spunbond nonwoven fabric and hydroentangling, (2) embossing, and (3) rolling. In this case, in the manufacturing method (1), hydroentangling is performed by hydroentangling the pulp fibers with the synthetic fibers to obtain a nonwoven fabric containing synthetic fibers and pulp fibers. The hydroentangling method is preferably performed using, for example, the method described in JP 2018-193634 A.

[0080] 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]

[0081] 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.

[0082] (Examples 1 to 13 and Comparative Examples 1 to 6) Under the conditions shown in Tables 1 and 2, roll-shaped paper towel packages of Examples 1 to 13 and Comparative Examples 1 to 6 were produced by caramel-wrapping the above-mentioned paper towels and roll-shaped paper towels produced by the above-mentioned method for producing roll-shaped paper towels. Each roll-shaped paper towel package was then evaluated in the following four ways: evaluation of "decorative appearance (tightness) of the package," evaluation of "resistance to tearing when carried," evaluation of "roll product winding softness," and evaluation of "water absorbency." Each roll-shaped paper towel package contained two rolls of roll products.

[0083] (Packaging aesthetics (tightness)) The "beauty (tightness) of the packaging" was evaluated by 30 monitors who sensorily evaluated the tightness of the packaging, and rated it on a four-point scale based on the number of people who answered that the beauty was good. ◎: 28 or more people felt that the packaging was aesthetically pleasing Good: 25 to 27 people felt that the packaging was aesthetically pleasing △: 21 to 24 people felt that the packaging was aesthetically pleasing ×: 20 or fewer people felt that the packaging was aesthetically pleasing

[0084] (Difficult to tear when carrying) To evaluate "resistance to tearing when carrying," 30 test subjects were asked to walk 100 meters while holding the package in their hands, and the number of people whose package broke was rated on a four-point scale. ◎: 0 people had their packaging torn 〇: 1 person had the packaging torn △: The packaging was torn by 2 to 4 people ×: Packaging was torn by 5 or more people

[0085] (Softness of rolled products) The evaluation of "roll product winding softness" was an evaluation of the winding softness of a rolled paper towel (roll product) made by winding paper towels into a roll, and was evaluated on the following four-point scale based on the winding firmness (mm). ◎: Rolling hardness is 3mm or more ○: Rolling hardness is 2.5mm or more and less than 3mm △: Rolling hardness is 2mm or more and less than 2.5mm ×: Rolling hardness is less than 2 mm

[0086] (Water absorption) The "absorbency" rating is an evaluation of the amount of water absorbed per unit area of ​​a paper towel (sheet), and is expressed as the amount of water absorbed per unit area (g / m 2 ) and evaluated on the following four levels. ◎: Water absorption per unit area is 310g / m 2 End ○: Water absorption per unit area is 260g / m 2 More than 310g / m 2 less than △: Water absorption per unit area is 210g / m 2 More than 260g / m 2 less than ×: Water absorption per unit area is 210 g / m 2 less than

[0087] The results obtained are shown in Tables 1 and 2.

[0088] [Table 1]

[0089] [Table 2]

[0090] From Tables 1 and 2, it has been confirmed that, according to the present disclosure, a roll paper towel package in which multiple roll paper towels with a high basis weight and excellent absorbency are arranged in a single ply and packaged in film can ensure the aesthetic appeal (tightness) of the package, resistance to tearing when carried, and softness of the roll product. [Explanation of symbols]

[0091] 10: Roll paper towel packaging 20: Rolled paper towels 20a: Paper towels 30: Packaging film

Claims

1. A roll-shaped paper towel package comprising a plurality of roll-shaped paper towels each formed by winding up a single-ply sheet-shaped paper towel made mainly of pulp and containing synthetic fibers, and a packaging film for caramel-wrapping the plurality of roll-shaped paper towels, When the roll paper towel package is placed so that the axial direction of the plurality of roll paper towels is horizontal, and a first stainless steel ruler weighing 64 g, having a thickness of 1.0 mm, a width of 25 mm, and a scale length of 300 mm is placed across two adjacent roll paper towels in a first direction perpendicular to the axial direction, with the plate surface of the first ruler in contact with the packaging film to serve as a reference line, and a second stainless steel ruler weighing 10 g, having a thickness of 0.5 mm, a width of 15 mm, and a scale length of 150 mm is placed on the packaging film located between the two adjacent roll paper towels, perpendicular to the packaging film with the width direction of the second ruler aligned with the first direction, the depth to which the packaging film sinks due to the weight of the second ruler relative to the reference line is 3 mm or more and 14 mm or less, a value represented by the formula: (actual circumference of the packaging film) / (theoretical circumference of the packaging film calculated from the winding diameter of the rolled paper towel)×100 is 97 or more and 130 or less; The water absorption capacity per unit area of ​​the paper towel is 210 g / m ２ More than 520g / m ２ is as follows: The roll density of the rolled paper towel is 0.05 g / cm ３ 0.19g / cm or more ３ is as follows: The roll diameter of the rolled paper towel is 75 mm or more and 160 mm or less, The rolled paper towel has a winding tightness of 2 mm or more and 7 mm or less, The value represented by the formula: (tightness of the rolled paper towel) / (depth of sinking of the packaging film due to the weight of the second ruler) is 0.3 or more and 1.8 or less. A roll-shaped paper towel package.

2. The thickness of the packaging film is 20 μm or more and 55 μm or less.

2. The roll paper towel package of claim 1.

3. The basis weight of the paper towel is 40 g / m ２ 150g / m or more ２ is 3. The roll-shaped paper towel package according to claim 1 or 2.

4. The thickness of the paper towel is 200 μm or more and 1400 μm or less.

3. The roll-shaped paper towel package according to claim 1 or 2.

5. The winding density of the rolled paper towel is 0.10 m / cm ２ 0.30m / cm or more ２ is 3. The roll-shaped paper towel package according to claim 1 or 2.

6. The packaging film has a longitudinal tensile strength (DMDT) based on JIS Z 1702 of 20 MPa or more and 70 MPa or less, The packaging film has a tensile strength in the cross direction (DCDT) according to JIS Z 1702 of 10 MPa or more and 55 MPa or less.

3. The roll-shaped paper towel package according to claim 1 or 2.

7. The paper towel has a dry machine direction tensile strength (DMDT) based on JIS P 8113 of 8 N / 25 mm or more and 75 N / 25 mm or less, The dry cross tensile strength (DCDT) of the paper towel according to JIS P 8113 is 2 N / 25 mm or more and 50 N / 25 mm or less.

3. The roll-shaped paper towel package according to claim 1 or 2.

8. The water absorption per unit weight of the paper towel is 3.0 g / g or more and 8.0 g / g or less.

3. The roll-shaped paper towel package according to claim 1 or 2.

9. The packaging film has heat sealability.

3. The roll-shaped paper towel package according to claim 1 or 2.

10. The paper towel is a kitchen towel.

3. The roll-shaped paper towel package according to claim 1 or 2.

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