Kitchen towel roll multiple package and kitchen towel roll assembly package

Abstract

To provide: a kitchen towel roll multiple package which is easy to transport, which can suppress damage on rolls and which can maintain quality even in the case where kitchen towel rolls with a large winding diameter and low roll density are packaged in large capacity packaging; and a kitchen towel roll assembly package.SOLUTION: In a kitchen towel roll multiple package, an inner package where at least one or more kitchen towel rolls are packaged by an inner packaging film is packaged by an outer packaging film. The kitchen towel roll multiple package is provided in which the winding diameter of the kitchen towel roll is equal to or greater than 125 mm and equal to or less than 175 mm, the roll density is equal to or greater than 0.05 g / cm3 and equal to or less than 0.14 g / cm3, the paper thickness of a kitchen towel sheet is equal to or greater than 2.0 mm / 10 ply and equal to or less than 5.0 mm / 10 ply, the water absorption amount per unit area is equal to or greater than 300 g / m2 and equal to or less than 600 g / m2, and the embossment pattern is linear.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a kitchen towel roll multi-package and a kitchen towel roll group package. [Background technology]

[0002] In recent years, various kitchen towels have been developed.

[0003] Kitchen towels are sold as a single roll, or as a package of one or more rolls wrapped in film.

[0004] However, in recent years, as a means of transporting and selling larger packages, for example, when multiple rolls are wrapped in film to form one package, multiple packages are further wrapped in film to be sold as multi-packages (hereinafter also referred to as bundles).

[0005] Furthermore, from the standpoint of transport efficiency and stability, such multi-packages are often transported by loading multiple multi-packages onto a transport pallet and wrapping the entire package in a stretchable film (hereinafter also referred to as stretch film) to form an aggregate package.

[0006] For example, Patent Document 1, which is a prior art document for kitchen towel roll packaging, describes a kitchen paper roll package in which a gusset packaging bag is formed by folding the sides of a cylindrical packaging film inside the bag and flattening it, and then fusing the top of the bag, with the fused part as the boundary between a bag body and a handle part with a pair of notches for finger holes formed in the center. Inside the bag, a group of four kitchen paper rolls is contained, with one end face of each roll facing the handle part, with two adjacent kitchen paper rolls in contact with each other on the body surface and aligned so that their end faces are flush with each other. The width (height) of the handle part is 40 to 70 mm, and the height of the kitchen paper roll is 225 to 235 mm, the diameter is 30 to 130 mm, and the inner diameter is 3 The kitchen paper roll package disclosed has a perforation line for opening that is 5 to 45 mm long, has a base end between the upper and lower edges of the handle and between a pair of notches for finger holes, and runs from the base end through the pair of notches for finger holes to the main bag body, the lengths and ratio of the cut and tie parts of the perforation line are (cut part:tie part) = 1 mm:1 mm to 6 mm:6 mm, the total length of the perforation line for opening in the main bag body is equal to or greater than the sum of the diameter and inner diameter of the kitchen paper roll, and after removing one of the kitchen paper rolls contained inside, the upper forked part formed by tearing the perforation line for opening can be tied together to seal the opening. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Patent No. 6302195 Summary of the Invention [Problem to be solved by the invention]

[0008] When kitchen towel rolls are packaged in large quantities, the rolls tend to move around inside the package, which can lead to the rolls colliding with each other and becoming crushed, making them difficult to transport.

[0009] In this case, if multiple bundles are wrapped in stretch film on each pallet, the rolls will be less likely to move during transport and the load will not collapse. However, to prevent the load from collapsing, the rolls will be slightly crushed as pressure is applied by wrapping them multiple times. In particular, with soft kitchen towels with a large roll diameter, there is a risk that if the roll is crushed, the wrapped sheet and the embossed surface will be crushed, and the quality of the sheet, such as thickness (bulk) and absorbency, will not be maintained.

[0010] The present invention has been made in consideration of the above circumstances, and aims to provide a kitchen towel roll multi-package and a kitchen towel roll aggregate package that are easy to transport, that can prevent damage to the rolls that would otherwise be caused by crushing the rolls when wrapped in stretch film, and that can maintain qualities such as sheet bulk (paper thickness) and water absorbency, even when packaging large volumes of kitchen towel rolls with large winding diameters and low roll density. [Means for solving the problem]

[0011] After extensive research, the inventors have discovered a multi-package kitchen towel roll, which is a kitchen towel roll assembly package comprising two plies of kitchen towel sheets, one or both of which are embossed with glue or water, and the resulting laminated two-ply kitchen towel sheet, wound into a roll. The resulting inner package is wrapped in an inner wrapping film, and the resulting inner package is arranged in a matrix of four rolls lengthwise, three rolls widthwise, and one roll heightwise. The resulting package is then wrapped in an outer wrapping film. The kitchen towel roll's winding diameter and roll density, the kitchen towel sheet's paper thickness, and water absorption per unit area are all within predetermined ranges, and the embossed pattern is linear. This allows for easy transport, even when packaging large quantities of kitchen towel rolls with large winding diameters and low roll densities, and minimizes damage to the rolls due to crushing during stretch film wrapping. Furthermore, the present invention provides the following:

[0012] (1) The first aspect of the present invention is a kitchen towel roll multi-package, which is made by wrapping at least one or more kitchen towel rolls, each of which is made by laminating two plies of two sheets, one or both of which have an embossed pattern, with glue or water, and winding the resulting two plies into a roll. The resulting inner package is wrapped in an inner packaging film, and the resulting inner package is arranged so that there are four rolls in the longitudinal direction, three rolls in the width direction, and one roll in the height direction, and then wrapped in an outer packaging film. The kitchen towel roll has a winding diameter of 125 mm or more and 175 mm or less, and a roll density of 0.05 g / cm. 3 More than 0.14g / cm 3 The kitchen towel sheet has a paper thickness of 2.0 mm / 10 plies or more and 5.0 mm / 10 plies or less, and a water absorption capacity per unit area of ​​300 g / m 2 More than 600g / m 2 The kitchen towel roll multi-package is characterized in that the embossed pattern is linear.

[0013] (2) A second aspect of the present invention is a kitchen towel roll multi-package as described in (1), characterized in that the kitchen towel roll multi-package has a longitudinal dimension of 470 mm or more and 680 mm or less, a width dimension of 330 mm or more and 530 mm or less, and a height dimension of 200 mm or more and 400 mm or less.

[0014] (3) A third aspect of the present invention is a kitchen towel roll multi-package according to (1) or (2), characterized in that the winding softness of the kitchen towel roll is 1.2 mm or more and 4.0 mm or less.

[0015] (4) A fourth aspect of the present invention is the kitchen towel roll multi-package according to (1) or (2), wherein the winding density of the kitchen towel roll is 0.15 m / cm 2 More than 0.60m / cm 2 The following is true:

[0016] (5) A fifth aspect of the present invention is the kitchen towel roll multi-package according to (1) or (2), wherein the basis weight per two plies of the kitchen towel sheet is 33.0 g / m 2 Less than 65.0g / m 2 It is characterized by the following:

[0017] (6) The sixth aspect of the present invention is the kitchen towel roll multi-package according to (1) or (2), wherein the water absorption per unit mass of the kitchen towel sheet is 7.0 g / g or more and 13.0 g / g or less.

[0018] (7) The seventh aspect of the present invention is a kitchen towel roll multi-package according to (1) or (2), characterized in that the roll length of the kitchen towel roll is 20 m or more and 50 m or less.

[0019] (8) The eighth aspect of the present invention is a kitchen towel roll multi-package according to (1) or (2), characterized in that the kitchen towel roll has a paper tube in the core, and the outer diameter of the paper tube is 28 mm or more and 58 mm or less.

[0020] (9) A ninth aspect of the present invention is the kitchen towel roll multi-package according to (8), characterized in that the paper core contains hardwood bleached kraft pulp (LBKP).

[0021] (10) The tenth aspect of the present invention is a kitchen towel roll multi-packaging body according to (1) or (2), characterized in that the inner packaging body is a packaging body containing three rolls of the kitchen towel roll, and the packaging form of the inner packaging film is a caramel packaging.

[0022] (11) The eleventh aspect of the present invention is a kitchen towel roll multi-package according to (1) or (2), characterized in that the packaging form of the outer packaging film is a pillow package, and the kitchen towel roll multi-package has fold-in portions at both ends in the width direction.

[0023] (12) The twelfth aspect of the present invention is a kitchen towel roll multi-package according to (1) or (2), characterized in that the axial length of the kitchen towel roll is 200 mm or more and 400 mm or less.

[0024] (13) The thirteenth aspect of the present invention is a kitchen towel roll assembly package, characterized in that the kitchen towel roll multi-packages described in (1) or (2) are arranged on a transport pallet in a matrix of three in the longitudinal direction, two in the width direction, and four in the height direction, and the transport pallet is also wrapped in stretch film. [Effects of the Invention]

[0025] According to the present invention, it is possible to provide a kitchen towel roll multi-package and a kitchen towel roll assembly package that are easy to transport, can reduce damage to the rolls that would otherwise be caused by crushing the rolls when wrapped in stretch film, and can maintain qualities such as the bulkiness (paper thickness) and water absorbency of the sheets, even when packaging large quantities of kitchen towel rolls with large winding diameters and low roll density. [Brief explanation of the drawings]

[0026] [Figure 1] 1 is a perspective view of a kitchen towel roll multi-package according to one embodiment of the present invention. FIG. [Figure 2] FIG. 1 is a perspective view of an inner wrapping body of a kitchen towel roll according to one embodiment of the present invention. [Figure 3] 1 is a perspective view of a kitchen towel roll according to an embodiment of the present invention. [Figure 4] FIG. 1 is a diagram showing a method for measuring the water absorption of the kitchen towel sheet of the present invention. [Figure 5] FIG. 1 is a diagram showing an example of an embossing pattern in a kitchen towel roll of the present invention. [Figure 6] FIG. 1 is a diagram showing a height profile on the XY plane as observed by a microscope using shading. [Figure 7] FIG. 1 is a graph showing a height profile on the XY plane obtained by a microscope. [Figure 8] FIG. 10 is a diagram showing how to determine the embossing depth for an embossing pattern. [Figure 9] 1 is a perspective view of a kitchen towel roll assembly package according to one embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0027] Hereinafter, a mode for carrying out the present invention (hereinafter simply referred to as "the present embodiment") will be described in detail. The following present embodiment is an example for explaining the present invention, and is not intended to limit the present invention to the following content. The present invention can be carried out by appropriately modifying it within the scope of its gist.

[0028] The MD direction of the kitchen towel sheet is the machine direction in which the kitchen towel sheet is made, and the CD direction is the direction perpendicular to the MD direction (cross direction). In addition, the longitudinal direction, width direction, and height direction of the kitchen towel roll multi-package and the kitchen towel roll aggregate package are directions parallel to the X-axis direction, Y-axis direction, and Z-axis direction shown in Figures 1 and 9, respectively.

[0029] <Kitchen towel roll multi-packaging> Fig. 1 is a perspective view of a kitchen towel roll multi-package 1 (hereinafter simply referred to as "multi-package") according to one embodiment of the present invention. As shown in Fig. 1, the kitchen towel roll multi-package 1 according to this embodiment is formed by wrapping at least one kitchen towel roll 20 in an inner packaging film 11 to form inner packages 10, which are arranged in a matrix of four rolls lengthwise, three rolls widthwise, and one roll heightwise, and then wrapping the inner packages 10 in an outer packaging film 2. The inner packages 10 and kitchen towel roll 20 will be described later.

[0030] In this case, the longitudinal dimension of kitchen towel roll multi-package 1 is preferably 470 mm to 680 mm, the width dimension is preferably 330 mm to 530 mm, and the height dimension is preferably 200 mm to 400 mm. By having all dimensions within the above numerical ranges, kitchen towel roll multi-package 1 can be made easy to transport, can prevent damage to the roll due to crushing of kitchen towel roll 20 when wrapped in stretch film 120, and can maintain qualities such as sheet bulk (paper thickness) and water absorbency.

[0031] The lower limit of the longitudinal dimension is more preferably 510 mm or more, and even more preferably 540 mm or more, and the upper limit is more preferably 640 mm or less, and even more preferably 600 mm or less. The lower limit of the width direction dimension is more preferably 370 mm or more, and even more preferably 400 mm or more, and the upper limit is more preferably 490 mm or less, and even more preferably 460 mm or less. Furthermore, the lower limit of the height dimension is more preferably 230 mm or more, and even more preferably 250 mm or more, and the upper limit is more preferably 350 mm or less, and even more preferably 310 mm or less.

[0032] As described above, the number of rolls of kitchen towel rolls 20 included in the multi-package 1 is 4 x 3 x 1 = 12. If there are fewer than 12 rolls or more than 12 rolls, the multi-package 1 and the aggregate package 100 will be difficult to transport.

[0033] (Outer packaging film) The material of the outer packaging film 2 in the multi-package 1 can be any material typically used for packaging roll products, such as polyethylene (PE), polypropylene (PP), or polyethylene terephthalate (PET), with PE being preferred. These materials have good stretch and strength, which helps prevent damage to the kitchen towel roll 20 caused by crushing it when wrapped in stretch film 120, which will be described later.

[0034] It is preferable that the packaging form of the outer packaging film 2 is pillow packaging. If the packaging form is anything other than pillow packaging, the kitchen towel roll 20 will be prone to moving around inside the multi-package 1, making it difficult to transport. As shown in FIG. 1, the multi-packaging body 1 preferably has fold-in portions 3 at both ends in the width direction.

[0035] <Inner packaging> Fig. 2 is a perspective view of kitchen towel roll inner packaging 10 (hereinafter also referred to simply as "inner packaging") according to one embodiment of the present invention. As shown in Fig. 2, kitchen towel roll inner packaging 10 according to this embodiment is configured by packaging at least one roll of kitchen towel roll 20 in inner packaging film 11, but preferably three rolls of kitchen towel roll 20 are packaged as shown in Fig. 2.

[0036] (Inner packaging film) The material of the inner packaging film 11 in the inner packaging body 10 may be the same as or different from the material of the outer packaging film 2, but it is preferable that they be the same material to prevent damage to the kitchen towel roll 20 due to crushing.

[0037] It is preferable that the packaging form in the inner packaging film 11 is caramel packaging. If the packaging form is other than caramel packaging, the kitchen towel roll 20 will be prone to moving around inside the inner packaging body 10, making it difficult to transport.

[0038] <Kitchen towel roll> Figure 3 is a perspective view of a kitchen towel roll 20 according to one embodiment of the present invention. As shown in Figure 3, the kitchen towel roll 20 according to this embodiment is a kitchen towel sheet 20x formed by laminating two plies of sheets, one or both of which have an embossed pattern, and gluing the laminated two plies together. The kitchen towel sheet 20x is preferably perforated in the width direction of the roll at approximately equal intervals in the winding direction of the roll (not shown). 3, the surface of kitchen towel sheet 20x facing the outside of the roll is referred to as surface 20a (surface of kitchen towel sheet 20x), and the surface facing the center of the roll is referred to as back surface 20b (back surface of kitchen towel sheet 20x). Also, the edge of kitchen towel sheet 20x is referred to as outermost edge 20e of kitchen towel roll 20.

[0039] The kitchen towel roll 20 can be used, for example, as a roll of kitchen paper (sometimes called paper towel, cooking paper, etc.) used in home kitchens and restaurant kitchens to wipe away moisture or oil and remove dirt, as well as other rolls of sanitary paper.

[0040] (winding length and winding diameter) The roll length of kitchen towel roll 20 according to one embodiment of the present invention is preferably 20 m or more and 50 m or less. If the roll length is less than 20 m, the roll diameter DR will be small, making kitchen towel roll 20 more likely to move around inside inner package 10 or multi-package 1 and more difficult to transport. If the roll length exceeds 50 m, the roll density will be high and kitchen towel roll 20 will be stiff. The lower limit of the roll length of the kitchen towel roll 20 is more preferably 23 m or more, and even more preferably 25 m or more, and the upper limit is more preferably 43 m or less, and even more preferably 35 m or less.

[0041] The roll length is measured as follows. First, the length of 10 sheets of kitchen towel sheets 20x between the perforations of kitchen towel roll 20 is measured. Next, the number of sheets in kitchen towel roll 20 is measured, and the roll length is calculated proportionally from the length of 10 sheets and the number of sheets. For example, if the length of 10 sheets is 1.80 m and the number of sheets is 150, the roll length is 1.80 m × (150 / 10) = 27 m. Note that if kitchen towel roll 20 does not have perforations, the roll length is measured.

[0042] The roll diameter DR of the kitchen towel roll 20 is 125 mm or more and 175 mm or less. If the roll diameter DR is less than 125 mm, the small roll diameter DR makes the kitchen towel roll 20 prone to movement inside the inner package 10 or the multi-package 1, making it difficult to transport. If the roll diameter DR exceeds 175 mm, the kitchen towel roll 20 will be significantly crushed by the wrapping in the stretch film 120 when wrapped in the collective package 100.

[0043] The lower limit of the roll diameter DR of the kitchen towel roll 20 is preferably 135 mm or more, more preferably 145 mm or more, and the upper limit is preferably 165 mm or less, more preferably 155 mm or less. The roll diameter DR of the kitchen towel roll 20 is measured using a diameter rule manufactured by Muratec KDS Co., Ltd. Three kitchen towel rolls 20 are measured, and the measurement results are averaged.

[0044] (roll width and roll mass) Furthermore, the axial length (roll width) of the kitchen towel roll 20 is preferably 200 mm or more and 400 mm or less. If the axial length is less than 200 mm, the resulting multi-package 1 will not be tight enough to transport. If the axial length exceeds 400 mm, the height of the collective package 100 will be too high and will not be able to be adequately covered by the stretch film 120, resulting in a less tight fit and making transportation difficult. The axial length (roll width) of the kitchen towel roll 20 is preferably 230 mm or more, more preferably 250 mm or more, and more preferably 350 mm or less, and more preferably 300 mm or less.

[0045] The roll mass of the kitchen towel roll 20 is preferably 190 g or more, more preferably 240 g or more, and even more preferably 290 g or more, and the upper limit is preferably 620 g or less, more preferably 570 g or less, and even more preferably 410 g or less. If the roll mass is less than 190 g, kitchen towel roll 20 will be significantly crushed when wrapped in stretch film 120 during packaging of collective package 100. If the roll mass exceeds 620 g, kitchen towel roll 20 will become stiff.

[0046] The roll mass is the mass per 280 mm of roll width, excluding the paper core 21, of the kitchen towel roll 20. If the roll width is not 280 mm, it is converted to the mass per 280 mm by proportional calculation.

[0047] (roll density) The roll density of the kitchen towel roll 20 is 0.05 g / cm 3 More than 0.14g / cm 3 The roll density is 0.05 g / cm or less. 3 If the roll density is less than 0.14 g / cm, the kitchen towel roll 20 will be significantly crushed when wrapped in the stretch film 120 during wrapping of the collective package 100. 3 If you exceed this, the kitchen towel roll 20 will become hard. The roll density of the kitchen towel roll 20 has a lower limit of 0.06 g / cm 3 It is preferable that the concentration is 0.07 g / cm or more. 3 The upper limit is preferably 0.11 g / cm. 3 Preferably, it is 0.09 g / cm or less. 3 More preferably, it is:

[0048] The roll density is expressed as (roll mass) ÷ (roll volume). The roll mass is the mass of the kitchen towel roll 20 per 280 mm of roll width. The roll volume is expressed as [{cross-sectional area of ​​the roll's outer diameter (winding diameter DR)} - (cross-sectional area of ​​the paper core's outer diameter DI)] × roll width (converted per 280 mm). For example, if the roll mass (excluding the paper core 21) per 280 mm of roll width is 382 g, the winding diameter DR is 150 mm, and the paper core 21 outer diameter DI is 39 mm, the roll density = 382 g ÷ [{3.14 × (150 mm ÷ 2 ÷ 10) 2-3.14×(39mm÷2÷10) 2}×(280mm÷10)]=0.08g / cm 3 This becomes:

[0049] (winding density) Furthermore, the winding density of the kitchen towel roll 20 is 0.15 m / cm 2 More than 0.60m / cm 2 It is preferable that the winding density is 0.15 m / cm or less. 2 If the winding density is less than 0.60 m / cm, the kitchen towel roll 20 will be significantly crushed when wrapped in the stretch film 120 during wrapping of the collective package 100. 2 If you exceed this, the kitchen towel roll 20 will become hard. The winding density of the kitchen towel roll 20 has a lower limit of 0.25 m / cm 2 More preferably, it is 0.30 m / cm or more. 2 The upper limit is preferably 0.55 m / cm. 2 More preferably, it is 0.43 m / cm or less. 2 It is more preferable that:

[0050] The winding density is expressed as (winding length x number of plies) ÷ (cross-sectional area of ​​the roll). The cross-sectional area of ​​the roll is expressed as {cross-sectional area of ​​the roll outer diameter (winding diameter DR) - (cross-sectional area of ​​the cardboard core outer diameter DI)}. For example, in the case of a winding length of 27 m, 2 plies, a winding diameter DR of 150 mm, and a cardboard core outer diameter DI of 39 mm, the winding density = (27 m x 2) ÷ {3.14 x (150 mm ÷ 2 ÷ 10) 2 -3.14×(39mm÷2÷10) 2}=0.33m / cm 2 This becomes:

[0051] (Rolling softness) The winding softness of kitchen towel roll 20 is preferably 1.2 mm or more and 4.0 mm or less. If the winding softness is less than 1.2 mm, kitchen towel roll 20 will be significantly crushed when wrapped in stretch film 120 during packaging of collective package 100. If the winding softness exceeds 4.0 mm, kitchen towel roll 20 will become stiff. The lower limit of the winding softness of the kitchen towel roll 20 is more preferably 1.4 mm or more, and even more preferably 1.6 mm or more, and the upper limit is more preferably 3.6 mm or less, and even more preferably 3.0 mm or less.

[0052] The winding softness of kitchen towel roll 20 is measured using a compression tester (handy compression tester KES-G5 manufactured by Kato Tech Co., Ltd.) as follows: The direction parallel to the axis of kitchen towel roll 20 is defined as the height direction, and the direction perpendicular to the tangent to the circumference of kitchen towel roll 20 is defined as the radial direction.

[0053] First, the kitchen towel roll 20 is placed horizontally on a hard table so that the axis is horizontal. Then, the KES-G5 compression element (area 2.0 cm) is placed at the center of the axial direction of the kitchen towel roll 20. 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 2 The indentation depth when the pressure is 150gf / cm 2 The indentation depth at this time is T m As, (T m Next, the kitchen towel roll 20 is rotated 90 degrees in the circumferential direction around its axis, and the pressing depth T m and T0 are measured, and T m and T0 (T m -T0) is calculated. The measurement is performed twice for each kitchen towel roll 20 as described above. That is, for three kitchen towel rolls 20, each is measured twice, and the average of the six measurement results (= 2 times / roll x 3 rolls) is used as the final winding softness. The axial center of kitchen towel roll 20 into which the compressor is pressed during measurement is determined by measuring the roll width described above with a metal ruler or tape measure and finding half the measured value.

[0054] (Paper tube outer diameter) Furthermore, the kitchen towel roll 20 of the present invention preferably has a cardboard tube 21 in its core, and the cardboard tube outer diameter DI, which is the outer diameter of the core (cardboard tube 21), is preferably 28 mm or more and 58 mm or less. If the cardboard tube outer diameter DI is less than 28 mm, the resulting reel diameter DR will be small, making the inner packaging 10 and the multi-packaging 1 less tight, and the kitchen towel roll 20 will move easily inside, making transportation difficult. If the cardboard tube outer diameter DI exceeds 58 mm, the resulting reel diameter DR will be large, and the kitchen towel roll 20 will be significantly crushed when wrapped in stretch film 120 during packaging in the collective packaging 100. The lower limit of the cardboard tube outer diameter DI is more preferably 32 mm or more, and even more preferably 36 mm or more, and the upper limit is more preferably 52 mm or less, and even more preferably 48 mm or less.

[0055] The outer diameter DI of the paper tube is measured using a diameter rule manufactured by Muratec KDS Co., Ltd. Three kitchen towel rolls 20 are measured and the measurement results are averaged. If the core does not have a paper tube 21, the outer diameter of the hollow core portion is measured.

[0056] The base paper used for the cardboard tube 21, which is the core, may be made of 100% wood pulp by mass, or may include recycled paper pulp, non-wood pulp, deinked pulp, recycled paper from liquid beverage cartons, etc. However, from the viewpoint of quality, it preferably contains LBKP (bleached hardwood kraft pulp). The mass content of pulp other than wood pulp, recycled paper, etc. is preferably 50% or less, more preferably 30% or less, even more preferably 10% or less, and most preferably 0%. To achieve the target quality, the mass content of NBKP (softwood bleached kraft pulp) is preferably 0% to 50%, more preferably 0% to 30%, and even more preferably 0% to 10%, and the mass content of LBKP (hardwood bleached kraft pulp) is preferably 50% to 100%, more preferably 70% to 100%, and even more preferably 90% to 100%.

[0057] <Kitchen towel sheet> (Basic weight) The basis weight per two plies of the kitchen towel sheet 20x according to one embodiment of the present invention is 33.0 g / m 2 More than 65.0g / m 2 The basis weight is preferably 33.0 g / m or less. 2 If the basis weight is less than 65.0 g / m, the kitchen towel sheet 20x will have poor water absorbency. 2 If the roll density of the kitchen towel roll 20 exceeds this value, the roll density of the kitchen towel roll 20 will increase, and the kitchen towel roll 20 will become stiff. The minimum basis weight per two plies of the kitchen towel sheet 20x is 37.0 g / m 2 More preferably, it is 40.0 g / m or more. 2 The upper limit is 55.0 g / m or more. 2 More preferably, it is 50.0 g / m or less. 2 It is more preferable that the basis weight of the kitchen towel sheet 20x is less than 1000g. The basis weight of the kitchen towel sheet 20x can be measured in accordance with JIS P 8124.

[0058] (paper thickness) The thickness of the kitchen towel sheet 20x is 2.0 mm / 10 ply or more and 5.0 mm / 10 ply or less. If the thickness is less than 2.0 mm / 10 ply, the kitchen towel sheet 20x will have a low thickness and poor absorbency. If the thickness is more than 5.0 mm / 10 ply, the roll density of the kitchen towel roll 20 will increase, making the kitchen towel roll 20 stiff. The paper thickness of the kitchen towel sheet 20x is preferably 2.5 mm / 10 plies or more at the lower limit, more preferably 2.8 mm / 10 plies or more at the upper limit, and is preferably 4.5 mm / 10 plies or less, more preferably 4.2 mm / 10 plies or less at the upper limit.

[0059] The thickness of the kitchen towel sheet 20x can be measured using a thickness gauge (a dial thickness gauge "PEACOCK" manufactured by Ozaki Seisakusho Co., Ltd.). The measurement conditions are a measurement load of 37.85 gf / cm 2 The gauge head has a diameter of 30 mm. Place the sample between the gauge head and the measuring table, and read the gauge when the gauge head is lowered at a speed of 1 mm per second or less. The sample is a 20x kitchen towel sheet, 10 plies (5 sets of 2 plies), and the measurement is repeated 10 times at different locations, and the measurement results are averaged.

[0060] (specific volume) The specific volume of the kitchen towel sheet 20x is 12.0 cm 3 / g or more, and 13.0 cm 3 / g or more is more preferable, and 14.0 cm 3 / g or more is more preferable. The upper limit is 18.0 cm 3 / g or less, and 17.0 cm 3 / g or less is more preferable, and 16.0 cm 3 / g or less. The specific volume of the kitchen towel sheet 20x is 12.0 cm 3 If the specific volume of the kitchen towel sheet 20x is less than 18.0 cm / g, the paper thickness of the kitchen towel sheet 20x will be reduced, resulting in poor water absorbency. 3 If the kinematic viscosity exceeds 1 / g, the roll density of the kitchen towel roll 20 will increase, and the kitchen towel roll 20 will become stiff. The specific volume is calculated by dividing the paper thickness per ply of the 20x kitchen towel sheet by the basis weight per ply, and then calculating the volume (cm 3 )

[0061] (Water absorption) In the present invention, the water absorption per unit area of ​​the kitchen towel sheet 20x is 300 g / m 2 More than 600g / m 2 The water absorption per unit area is 300g / m 2If the thickness is less than 600 g / m, the kitchen towel sheet 20x will have poor water absorbency. 2 If the roll density of the kitchen towel roll 20 exceeds this value, the roll density of the kitchen towel roll 20 will increase, and the kitchen towel roll 20 will become stiff. The lower limit of the water absorption per unit area of ​​the kitchen towel sheet 20x is 340 g / m 2 It is preferable that the weight is 400 g / m or more. 2 The upper limit is 550 g / m 2 Preferably, it is 470 g / m or less. 2 More preferably, it is:

[0062] The water absorption per unit mass of the kitchen towel sheet 20x is preferably 7.0 g / g or more and 13.0 g / g or less. If the water absorption per unit mass is less than 7.0 g / g, the kitchen towel sheet 20x will have poor water absorption. If the water absorption per unit mass is more than 13.0 g / g, the roll density of the kitchen towel roll 20 will increase, resulting in the kitchen towel roll 20 becoming stiff. The lower limit of the water absorption per unit mass is more preferably 8.0 g / g or more, and even more preferably 9.0 g / g or more, and the upper limit is more preferably 12.0 g / g or less, and even more preferably 11.0 g / g or less.

[0063] The method for measuring the water absorption of each of the kitchen towel sheets 20x will be described below with reference to FIG. First, a two-ply kitchen towel sheet 20x is taken and cut using a 76 mm square template to prepare a rectangular test piece 30 with sides of 76 mm. The mass of the test piece 30 before water absorption is measured using an electronic balance. The test piece 30 is set in a holder 31 (a jig that fixes three points of the test piece 30, made of a metal that does not absorb water).

[0064] Next, distilled water is poured into a commercially available tray to a depth of 2 cm, and the test piece 30 set in the holder 31 is immersed in the distilled water for 2 minutes. After immersion for 2 minutes, the test piece 30 is removed from the distilled water together with the holder 31, and the holder 31 and test piece 30 are hung from a rod placed in an empty water tank with the corner 30a facing up, and the lid of the water tank is closed and left for 5 minutes.

[0065] Thereafter, the holder 31 and the test piece 30 are taken out of the water tank, the holder 31 is removed, and the mass of the test piece 30 is measured using an electronic balance. From the change in mass of the test piece 30 before and after immersion in distilled water, the amount of distilled water absorbed per unit area of ​​the test piece 30 (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 30 to obtain the water absorption per unit area (water g / sheet m 2 ) / basis weight (sheet g / sheet m 2 ) = Water absorption per unit mass (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. This measurement is carried out in accordance with JIS P 8111 at a temperature of 23±1°C and humidity of 50±2%. The distilled water is kept at 23±1°C.

[0066] (Embossed) The kitchen towel roll 20 (kitchen towel sheet 20x) of the present invention is embossed and has an embossed pattern. Furthermore, the kitchen towel sheet 20x of the present invention is made by embossing one or both of two ply sheets and then laminating them to form two ply sheets. When laminating the two ply sheets, a ply bond glue or water is applied to the sheets for bonding. By bonding the ply sheets in this way to form two ply sheets, the ply adhesion is strengthened, and the kitchen towel sheet 20x is less likely to tear or separate even when wet. The embossing is preferably performed on one of the two plies of sheets, and more preferably on the ply on the front surface 20a of the two plies of sheets.

[0067] As mentioned above, the ply on the front surface 20a of the kitchen towel sheet 20x preferably has an embossed pattern. By providing an embossed pattern on the front surface 20a, glue or water can be applied to the embossed portions of the embossed pattern for adhesion treatment, which makes it difficult for the ply of the kitchen towel sheet 20x to peel off and allows the water absorption capacity to be within a certain range.

[0068] The embossing pattern is not particularly limited as long as it is a pattern commonly used on kitchen towels, such as dots or lines, but a line embossing pattern is preferable. If the embossing pattern is not line-shaped, the embossed portion is easily crushed, resulting in a reduced paper thickness and poor absorbency of the kitchen towel sheet 20x.

[0069] The linear embossing pattern is not particularly limited as long as it includes two types of patterns, namely, a substantially circular shape with another pattern inside, and a pattern that is substantially line-symmetrical in the vertical and horizontal directions as a whole and includes a combination of multiple curves and patterns, as shown in Fig. 5. For the substantially circular shape, it is preferable that the substantially circular shape is doubled.

[0070] Furthermore, the dimensions of the embossed pattern are such that the rectangle E (E is not the embossed pattern) surrounding the embossed pattern is preferably a square with sides of 2 cm to 25 cm, more preferably a square with sides of 5 cm to 20 cm, and even more preferably a square with sides of 8 cm to 15 cm. The lengthwise direction of this rectangle E is preferably parallel to the flow direction of the kitchen towel roll 20, and the widthwise direction is preferably parallel to the width direction of the kitchen towel roll 20, although they may be tilted. By using such a pattern, the kitchen towel roll 20, which has a high water absorption capacity as in the present application, does not become too flattened.

[0071] In this case, it is preferable that the area occupied by embossments in the linear embossing pattern that are 0.1 mm to 4 mm thick and 5 mm or longer is 4% to 50% of the area of ​​kitchen towel sheet 20x. If this percentage is less than 4%, kitchen towel roll 20 is prone to being crushed. If this percentage exceeds 50%, the paper thickness of kitchen towel sheet 20x becomes too thin, resulting in poor absorbency and making it difficult to maintain quality.

[0072] The above area percentage is calculated by measuring the total length of all embossments that are 0.1 mm or more and 4 mm or less in thickness and 5 mm or more in length inside rectangle E, which is designed to include all of one embossing pattern as shown in Figure 5, and then calculating the embossment area as the total length (mm) x width (mm).The area of ​​one sheet of kitchen towel sheet 20x is then calculated as (embossment area / area of ​​one sheet of kitchen towel sheet 20x) x 100 (%), where the area of ​​one sheet of kitchen towel sheet 20x is (sheet length x sheet width of one sheet).

[0073] 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.

[0074] In addition, in the linear embossing pattern, the area occupied by embossments having a thickness of 0.1 mm or more and 4 mm or less and a length of 5 mm or more is more preferably 6% or more and 35% or less of the area of ​​the kitchen towel sheet 20x, and even more preferably 9% or more and 16% or less.

[0075] In the embossing pattern, the embossing depth is preferably 0.06 mm to 1.05 mm. If the embossing depth is less than 0.06 mm, the kitchen towel roll 20 is easily crushed. If the depth exceeds 1.05 mm, the paper thickness of the kitchen towel sheet 20x becomes thin, resulting in poor absorbency and making it difficult to maintain quality. The depth of the embossing in the embossing pattern is more preferably 0.10 mm or more and 0.55 mm or less, and even more preferably 0.14 mm or more and 0.35 mm or less.

[0076] The depth of the embossment is measured using a microscope. The microscope used can be a Keyence One-Shot 3D Measuring Macroscope VR-3100. The microscope image observation, measurement, and image analysis software can be the VR-H1A. The measurement conditions are a magnification of 25x and a field of view of 12mm x 9mm. The measurement magnification and field of view can be changed as appropriate depending on the desired size of the embossment.

[0077] Figure 6 shows a height profile on the XY plane taken with a microscope, with the height of the surface of the kitchen towel sheet 20x represented by shading. The linear areas in Figure 6 that are shaded differently from the surrounding areas represent individual embossments. The depth of the embossment is determined by measuring the height difference of the embossments using the microscope. The measurement is performed on the surface 20a side of the kitchen towel sheet 20x. Furthermore, during measurement, three laps of the kitchen towel sheet 20x are removed from the kitchen towel roll 20, and the fourth lap of the kitchen towel sheet 20x is used to perform the measurement on the two-ply sheet. Furthermore, if there are perforations, these are avoided during the measurement.

[0078] First, a line segment AB is drawn as shown in Figure 6 to obtain the height profile shown in Figure 7. Line segment AB can be drawn across the embossments. Line segment AB is drawn in the width direction (CD) of kitchen towel sheet 20x. However, if the spacing between embossments is narrow, e.g., 2 mm or less, resulting in a low height of the convex portions described below, the line segment may be drawn diagonally or in the machine direction (MD). The height profile shown in Figure 7 is a (measured) cross-sectional curve S representing the surface irregularities of an actual kitchen towel sheet 20x sample. However, it also contains noise (steep peaks due to fiber clumps, whisker-like fibers, or fiber-free areas on the surface of kitchen towel sheet 20x). Therefore, it is necessary to remove such noise peaks when calculating the height difference of the irregularities.

[0079] Therefore, the (measured) profile curve S in Figure 7 is smoothed by setting the filter size of the weighted average radio button to ±12 to obtain the profile curve W in Figure 8. Note that smoothing using the filter of the weighted average radio button can be obtained automatically using the analysis software mentioned above. Then, in the graph shown in Figure 8, the average values ​​of the maximum values ​​on the vertical axis of the convex portion H1 and the convex portion H2 adjacent to the convex portion H1 are calculated, and the minimum value on the vertical axis of the concave portion D1 sandwiched between the convex portions H1 and H2 is found. The value obtained by subtracting the minimum value from the average value of the maximum values ​​found in this way is used as the provisional emboss depth. Then, as shown in Figure 8, similar measurements are taken at two consecutive locations on the cross-sectional curve (the two consecutive locations of recess D1 and recess D2 sandwiched between protrusions H3 and H4) (two measurement results are obtained at this point). After that, kitchen towel roll 20 is rotated three times by 90 degrees in the direction of the flow of kitchen towel sheet 20x, and the same measurements are taken at each position (four measurement locations in the direction of the flow), and the average value of the eight locations (2 x 4) is ultimately used as the embossing depth.

[0080] <Method of manufacturing multi-packaged kitchen towel roll> The kitchen towel roll 20 can be manufactured, for example, in the following order: (1) papermaking and creping, (2) embossing and adhesive treatment, and (3) roll winding. Furthermore, after the above steps, the kitchen towel roll multi-package 1 can be produced by (4) packaging with an inner packaging film for 3 rolls, and (5) outer packaging with an outer packaging film for 4 x 3 rolls in that order.

[0081] <Kitchen towel roll assembly packaging> FIG. 9 is a perspective view of a kitchen towel roll assembly package 100 (hereinafter also simply referred to as "assembly package") according to one embodiment of the present invention. The kitchen towel roll assembly package 100 is preferably made by arranging kitchen towel roll multi-packages 1 on a transport pallet 110 so that three are arranged lengthwise, two are arranged widthwise, and four are arranged heightwise, and then wrapping the transport pallet 110 together in stretch film 120. In this case, as described above, the number of multi-packages 1 included in the collective package 100 is preferably 3 x 2 x 4 = 24. If the number is less than 24 or more than 24, the collective package 100 becomes difficult to transport.

[0082] From the viewpoint of ease of transportation and stability, it is preferable that the stretch film 120 be wrapped in the circumferential direction of the collective packaging body 100. It is also preferable that the stretch film 120 be wrapped more around the lower part 100c of the collective packaging body than the central part 100b of the collective packaging body, and more around the upper part 100a of the collective packaging body than the central part 100b of the collective packaging body. In this case, the upper part 100a, central part 100b, and lower part 100c of the collective packaging body are defined as follows: the upper part 100a is the part up to 40% of the height dimension from the top (top surface) of the collective packaging body 100; the lower part 100c is the part up to 40% of the height dimension from the bottom (bottom surface); and the central part 100b is the 20% excluding the upper part 100a and lower part 100c. Furthermore, a film that covers both the upper portion 100a and the central portion 100b is counted as the film that covers the larger area.

[0083] Specifically, the minimum number of turns of the stretch film 120 in the upper portion 100a is preferably 2 or more, more preferably 4 or more, and even more preferably 6 or more, and the maximum number of turns is preferably 16 or less, more preferably 13 or less, and even more preferably 12 or less. The minimum number of turns of the stretch film 120 in the center portion 100b is preferably 2 or more, and the maximum number is preferably 14 or less, more preferably 12 or less, and even more preferably 10 or less. Furthermore, the minimum number of turns of the stretch film 120 in the lower portion 100c is preferably 2 or more, more preferably 4 or more, and even more preferably 6 or more, and the maximum number of turns is preferably 16 or less, more preferably 13 or less, and even more preferably 12 or less.

[0084] If the number of wraps in each section is less than the lower limit, collective packaging 100 will not be tight enough and will be difficult to transport. If the number of wraps in each section exceeds the upper limit, kitchen towel roll 20 will be significantly crushed when wrapped in stretch film 120 during packaging of collective packaging 100.

[0085] Furthermore, the minimum total number of wraps of stretch film 120 is preferably 10 or more, more preferably 14 or more, and even more preferably 18 or more. The maximum is preferably 30 or less, more preferably 26 or less, and even more preferably 22 or less. If the total number of wraps is less than 10, the collective packaging body 100 will not be tight enough and will be difficult to transport. If the total number of wraps exceeds 30, the kitchen towel roll 20 will be significantly crushed when wrapped in stretch film 120 during packaging of collective packaging body 100. The number of turns for each part of the stretch film 120 and the total number of turns are all values ​​when the width of the stretch film 120 is 450 mm. When two layers of the stretch film 120 are wound together, it is preferable to wind the stretch film 120 so that the lower and upper limits of the above numerical ranges are half of each other.

[0086] The thickness of the stretch film 120 is preferably 5 μm or more, more preferably 6 μm or more, and even more preferably 7 μm or more. The upper limit is preferably 30 μm or less, more preferably 25 μm or less, and even more preferably 20 μm or less. If the thickness is less than 5 μm, the collective package 100 will not be tight enough and will be difficult to transport. If the thickness exceeds 30 μm, the kitchen towel roll 20 will be significantly crushed when wrapped in the stretch film 120 during packaging of the collective package 100. The thickness of the stretch film 120 is measured in accordance with JIS K 7130. In this case, the thickness of the stretch film 120 refers to the thickness of the collective package 100 after packaging.

[0087] Furthermore, the width (height dimension) of the stretch film 120 preferably has a lower limit of 100 mm or more, more preferably 300 mm or more, and even more preferably 400 mm or more. The upper limit is preferably 1000 mm or less, more preferably 700 mm or less, and even more preferably 600 mm or less. If the width is less than 100 mm, the collective packaging body 100 will not be tight enough and will be difficult to transport. If the width exceeds 1000 mm, the kitchen towel roll 20 will be significantly crushed when wrapped in the stretch film 120 during packaging of the collective packaging body 100.

[0088] Furthermore, the ratio calculated by (the perimeter of the collective package 100 loaded on the transport pallet 110 after wrapping with the stretch film 120 divided by the perimeter of the transport pallet 110) preferably has a lower limit of 0.95 or more, more preferably 0.97 or more, and even more preferably 0.99 or more. The upper limit is preferably 1.15 or less, more preferably 1.09 or less, and even more preferably 1.05 or less. If the ratio is less than 0.95, the collective package 100 will not be tight enough to transport, making it difficult to transport. If the ratio exceeds 1.15, the kitchen towel rolls 20 will be significantly crushed when wrapped in the stretch film 120 during wrapping of the collective package 100. In this case, the circumference of the collective packaging body 100 is measured at the portion of the upper part 100 a after packaging with the stretch film 120 .

[0089] In order to keep the ratio within the above-mentioned range, the lower limit of the perimeter of the collective package 100 loaded on the transport pallet 110 after wrapping with the stretch film 120 is preferably 4200 mm or more, more preferably 4300 mm or more, and even more preferably 4400 mm or more. The upper limit is preferably 4900 mm or less, more preferably 4700 mm or less, and even more preferably 4600 mm or less. The lower limit of the circumferential length of the transport pallet 110 is preferably 3000 mm or more, more preferably 3500 mm or more, and even more preferably 4000 mm or more, and the upper limit is preferably 6000 mm or less, more preferably 5500 mm or less, and even more preferably 5000 mm or less.

[0090] As described above, according to this embodiment, even when packaging large quantities of kitchen towel rolls with large roll diameters and low roll density, it is possible to provide a kitchen towel roll multi-package and a kitchen towel roll aggregate package that are easy to transport, can reduce damage to the rolls that would otherwise be caused by the rolls being crushed when wrapped in stretch film, and can maintain qualities such as the bulkiness (paper thickness) and absorbency of the sheets. [Example]

[0091] The present invention will be explained in more detail below with reference to examples, but the present invention is not limited to the following examples in any way.

[0092] First, kitchen towel rolls were manufactured through the following processes: (1) papermaking and creping, (2) embossing and adhesive treatment, and (3) roll winding. Next, an inner package was produced by the process of (4) packaging with 3 rolls of inner packaging film, and then an outer package was produced by the process of (5) packaging with 4 x 3 rolls of outer packaging film. Finally, (6) 24 multi-packages were wrapped in stretch film to produce the kitchen towel roll assembly packages of Examples 1 to 9 and Comparative Examples 1 to 4 shown in Table 1. The above-mentioned parameters were measured for the multi-packages and assembly packages of all Examples and Comparative Examples, and the following evaluations were performed. Note that parameters other than those evaluated below were measured according to the standards or measurement methods described above.

[0093] 1. Softness of the roll After transportation, one multi-package was picked up from the collective package, the outer and inner wrapping films were torn off, and three kitchen towel rolls were removed. The softness of each kitchen towel roll was measured and rated on a four-point scale. The evaluation criteria were as follows: 4: When the winding softness is 1.6 mm or more 3: When the winding softness is 1.4 mm or more and less than 1.6 mm 2: When the winding softness is 1.2 mm or more and less than 1.4 mm 1: When the winding softness is less than 1.2 mm

[0094] 2. Roll crushing After transportation, one multi-package was picked up from the combined package, the outer and inner wrapping films were torn off, and one kitchen towel roll was removed. Thirty monitors performed a sensory evaluation of the crushing of the roll, rating it on a four-point scale based on the number of people who felt that the roll was "severely crushed." The evaluation criteria were as follows: 4: 0-2 people felt that the role was too crushed. 3: 3-5 people felt that the roll was too crushed. 2: 6-8 people felt that the roll was too crushed. 1: 9 or more people felt that the role was significantly crushed.

[0095] 3. Maintaining quality (bulk, absorbency) After transportation, one multi-package was picked up from the combined package, the outer and inner wrapping films were torn off, and one kitchen towel roll was taken out and used. The quality of the sheet (bulk and absorbency) was measured by paper thickness and the amount of absorbency per unit area, and rated on a four-point scale. The evaluation criteria are as follows: 4: Paper thickness 2.8mm / 10 ply or more, water absorption 400g / m 2 When the above 3: Paper thickness is 2.5mm / 10 ply or more and less than 2.8mm / 10 ply, water absorption is 340g / m 2 More than 400g / m 2 When less than 2: Paper thickness is 2.0mm / 10 plies or more and less than 2.5mm / 10 plies, water absorption is 300g / m 2 More than 340g / m 2 When less than 1: Paper thickness less than 2.0mm / 10 ply, water absorption 300g / m 2 When less than If either the paper thickness or the water absorption falls below the evaluation standard for each stage, the lower stage will be used for the evaluation. (For example, if the paper thickness is 2.7 mm / 10 ply and the water absorption is 320 g / m², 2 In this case, the rating will be 2 points.

[0096] 4.Ease of transportation The ease of transport of the manufactured collective packages was evaluated on a four-point scale, based on the following criteria: 4: The transport went smoothly without any issues or problems. 3: The item was transported without any problems or issues. 2: There were some minor issues and problems, but the item was delivered. 1: There were many problems and malfunctions, such as cargo shifting and shifting, making transportation difficult.

[0097] Table 1 shows the conditions and evaluation results for each example. [Table 1]

[0098] From the above, it was confirmed that this example can provide a kitchen towel roll multi-package and a kitchen towel roll assembly package that are easy to transport, can reduce damage to the rolls caused by crushing them when wrapped in stretch film, and can maintain qualities such as sheet bulk (paper thickness) and water absorbency, even when packaging large quantities of kitchen towel rolls with large roll diameters and low roll density. [Explanation of symbols]

[0099] 1 (Kitchen towel roll) Multi-packaging 2. Outer packaging film 3 Fold-in section 10 (Kitchen towel roll) inner packaging 11 Inner packaging film 20 kitchen towel rolls 20a surface 20b back side 20e Kitchen towel roll outermost edge 20x kitchen towel sheets 21 Paper tube 30 test specimens 30a Corner 31 Holder 100 (kitchen towel roll) collective package 100a (collective package) upper part 100b (collective packaging) center 100c (collective package) lower part 110 Shipping Pallets 120 stretch film

Claims

1. A kitchen towel roll multi-package is made by wrapping at least one or more kitchen towel rolls, each of which is made by laminating two plies of sheets, one or both of which have an embossed pattern, with glue or water, and winding the resulting kitchen towel sheet into a roll, in an inner packaging film, and arranging the inner packages so that there are four rolls in the longitudinal direction, three rolls in the width direction, and one roll in the height direction, and then wrapping the resulting inner packages in an outer packaging film. The kitchen towel roll has a winding diameter of 125 mm or more and 175 mm or less, and a roll density of 0.05 g / cm ３ 0.14g / cm or more ３ is as follows: The kitchen towel sheet has a paper thickness of 2.0 mm / 10 plies or more and 5.0 mm / 10 plies or less, and a water absorption capacity per unit area of ​​300 g / m ２ More than 600g / m ２ is as follows: A kitchen towel roll multi-package, characterized in that the embossed pattern is linear.

2. The kitchen towel roll multi-package of claim 1, characterized in that the longitudinal dimension of the kitchen towel roll multi-package is 470 mm or more and 680 mm or less, the width dimension is 330 mm or more and 530 mm or less, and the height dimension is 200 mm or more and 400 mm or less.

3. 3. The kitchen towel roll multi-package according to claim 1, wherein the winding softness of the kitchen towel roll is 1.2 mm or more and 4.0 mm or less.

4. The winding density of the kitchen towel roll is 0.15 m / cm ２ 0.60m / cm or more ２ 3. The kitchen towel roll multi-package according to claim 1 or 2, characterized in that:

5. The basis weight of the kitchen towel sheet per two plies is 33.0 g / m ２ Less than 65.0g / m ２ 3. The kitchen towel roll multi-package according to claim 1 or 2, characterized in that:

6. 3. The kitchen towel roll multi-package according to claim 1, wherein the kitchen towel sheet has a water absorption per unit mass of 7.0 g / g or more and 13.0 g / g or less.

7. 3. The kitchen towel roll multi-package according to claim 1, wherein the roll length of the kitchen towel roll is 20 m or more and 50 m or less.

8. The kitchen towel roll has a paper core, 3. The kitchen towel roll multi-package according to claim 1, wherein the outer diameter of the paper tube is 28 mm or more and 58 mm or less.

9. 9. The kitchen towel roll multi-package of claim 8, wherein the paper core comprises bleached hardwood kraft pulp (LBKP).

10. The inner wrapping body contains three rolls of the kitchen towel roll, 3. The kitchen towel roll multi-package according to claim 1, wherein the inner wrapping film is wrapped in a caramel-flavored form.

11. The packaging form of the outer packaging film is pillow packaging, 3. The kitchen towel roll multi-package according to claim 1, wherein the kitchen towel roll multi-package has fold-in portions at both widthwise ends.

12. 3. The kitchen towel roll multi-package according to claim 1, wherein the axial length of the kitchen towel roll is 200 mm or more and 400 mm or less.

13. A kitchen towel roll assembly package is characterized in that the kitchen towel roll multi-packages according to claim 1 or 2 are arranged on a transport pallet in a configuration of three in the longitudinal direction, two in the width direction, and four in the height direction, and the transport pallet is also wrapped in stretch film.

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