Toilet roll bundle packaging
The toilet roll bundle package with a laminated structure and specific film thickness and dimensions addresses deformation and crushing issues, enhancing storage and quality while increasing roll length and cuts.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- DAIO PAPER CORP
- Filing Date
- 2025-09-29
- Publication Date
- 2026-06-19
AI Technical Summary
Conventional toilet roll bundle packaging faces issues with toilet rolls moving around, becoming deformed, and risking crushing of edges due to softness, while attempts to tighten packaging can lead to perforation breakage and quality decline.
A toilet roll bundle package using a 40-60 μm thick plastic packaging film with a laminated toilet paper structure, featuring recesses and protrusions, and specific roll dimensions and hardness to maintain quality and prevent crushing.
The package improves storage and stockability by preventing deformation and crushing, maintaining quality and increasing roll length and number of cuts, while ensuring absorbency and smoothness.
Smart Images

Figure 2026100785000001_ABST
Abstract
Description
[Technical Field] 【0001】 This invention relates to a toilet roll bundle package containing multiple toilet rolls. [Background technology] 【0002】 Traditionally, toilet paper has been sold in the form of a toilet roll, which is made by winding a strip of toilet paper into a roll and installing it in a holder or similar device within the toilet space. Toilet rolls have perforations at predetermined intervals along their length, and the number of sheets that can be torn off at these perforations is called the number of cuts, which serves as an indicator of how many times the user can use the roll. While there is some variation among manufacturers, the number of cuts in conventional toilet rolls is commonly known to be between 120 and 240. Products with perforation intervals about half that of 200-240 cut products, resulting in around 120 cuts, are also known, but in terms of roll length, they are almost the same as 200-240 cut products. 【0003】 In recent years, due to changes in consumers' lifestyles, there has been a growing demand for everyday items such as toilet paper rolls that offer better storage and stockability. Furthermore, with the increased time spent at home due to restrictions on movement caused by the spread of COVID-19, there is a demand for toilet paper rolls that are needed while at home, such as longer rolls with increased cuts or roll length (e.g., Patent Document 1). 【0004】 On the other hand, toilet rolls are commercially available in the form of bundled packaging, with 2 to 12 rolls enclosed in a gusseted bag (for example, Patent Document 2). Among these, bundled packaging in which 10 toilet rolls are placed together with their respective sides touching is well known. 【0005】 One of the problems with conventional toilet roll bundle packaging is that, because toilet rolls are soft, it is difficult to tightly wrap them with bundle packaging film, causing the toilet rolls to move around inside the gusset packaging or become deformed as a result. [Prior art documents] [Patent Documents] 【0006】 [Patent Document 1] Japanese Patent Publication No. 2018-61824 [Patent Document 2] Japanese Patent Publication No. 2019-81602 [Overview of the Initiative] [Problems that the invention aims to solve] 【0007】 However, attempting to resolve this problem by tightly packaging the toilet rolls with a bulk packaging film increases the risk of crushing the edges of the toilet rolls, especially the ends, with the film. 【0008】 Furthermore, simply trying to harden the toilet roll by tightly winding the toilet paper onto the core to solve this problem can lead to problems such as breakage at the perforations, a decrease in weight and thickness, and crushing of the embossed texture due to the stretching of the toilet paper during winding, resulting in a decline in quality aspects such as absorbency, smoothness, and thickness. While tightly winding the toilet paper while maintaining the roll diameter allows for an increase in the number of cuts and roll length, which is useful in that respect, ensuring quality remains a challenge. 【0009】 The paper quality required for toilet paper is determined by a complex interplay of various physical properties. Therefore, it's not simply a matter of compromising between the number of cuts and roll length desired by consumers and the number of cuts and roll length that ensures the paper remains firm and resistant to crushing within the collective packaging. 【0010】 Therefore, the main objective of the present invention is to provide a toilet roll bundle that improves upon the crushing of toilet rolls that occurred in the conventional toilet roll bundle packaging described above, and achieves an increase in the number of cuts and roll length desired by consumers, while having the same performance quality as conventional products and providing a sense of thickness. [Means for solving the problem] 【0011】 The first solution to the above problem was, Toilet rolls, which are toilet paper rolled into a roll, It is gusset-packaged with a plastic packaging film. A toilet roll assortment package, The thickness of the aforementioned packaging film is 40-60 μm. The aforementioned toilet roll has a roll length of 34.9 to 55.1 m, a number of cuts of 306 to 483, and a roll hardness of 68 N to 92 N. The aforementioned toilet paper has a laminated structure in which three or more sheets are stacked together, with each layer having a paper thickness of more than 78 μm and less than 100 μm, and each layer having a basis weight of 13.5 g / m². 2 Super 16.0g / m 2 Less than, This is a toilet roll bundle packaging characterized by the following features. 【0012】 The second method is, The aforementioned sheet is formed by laminating one or more surface sheets and one or more back sheets, and has a recess on one side and a protrusion corresponding to the recess on the other side. The toilet paper is a toilet roll assembly package of the first type, wherein the convex portion of one sheet faces the portion of the other sheet where no convex portion is formed, and the convex portion of the other sheet faces the portion of the first sheet where no convex portion is formed, so that the convex-forming surfaces of the sheets face each other and only recesses are formed on the front and back. 【0013】 The third option is, The toilet paper has a recess area of less than 4,936 mm per sheet area and a total recess area ratio per side of 44.2% or more, for the toilet roll collective package of the first or second means. 2 exceeding 9,872 mm 2 The toilet paper has a recess area of less than 4,936 mm per sheet area and a total recess area ratio per side of 44.2% or more, for the toilet roll collective package of the first or second means. 【0014】 The fourth means is The toilet paper has a liquid absorption height in the horizontal direction of 61 mm / 100s or more, for the toilet roll collective package of the first or second means. 【0015】 The fifth means is The toilet paper has a dry tensile strength in the vertical direction of 657 cN / 25 mm or more and a dry tensile strength in the horizontal direction of 310 cN / 25 mm or more, for the toilet roll collective package of the first or second means. 【Advantages of the Invention】 【0016】 According to the present invention, while achieving improvement in the crushing of toilet rolls that occurred in conventional toilet roll collective packages and an increase in the number of cuts and roll lengths desired by consumers, a toilet roll collective package is provided that has the same performance quality as conventional products and gives a sense of thickness. 【Brief Description of the Drawings】 【0017】 [Figure 1] It is a front view for explaining the gusset packaging according to an embodiment of the present invention. [Figure 2] It is a schematic view showing the II-II cross section of FIG. 1. [Figure 3] It is a perspective view of the toilet roll collective package according to an embodiment of the present invention. [Figure 4] It is a front view of the toilet roll collective package according to an embodiment of the present invention. [Figure 5] It is a side view of the toilet roll collective package according to an embodiment of the present invention. [Figure 6] It is a perspective view of the toilet roll according to an embodiment of the present invention. [Figure 7] This is a perspective view of a toilet roll according to an embodiment of the present invention. [Figure 8] This figure shows an example of a design formed by the embossing process according to the present invention. [Figure 9] This is a cross-sectional view illustrating the recess formed by embossing according to the present invention. [Figure 10] This is a schematic diagram illustrating the embossing process according to the present invention. [Figure 11] This figure shows an example of the layering of sheets that make up toilet paper according to the present invention. [Figure 12] This figure shows an example of the layering of sheets that make up toilet paper according to the present invention. [Figure 13] This is a schematic diagram illustrating the method for measuring the surface MMD of toilet paper according to the present invention. [Modes for carrying out the invention] 【0018】 Next, embodiments of the toilet roll assembly packaging 1 according to the present invention will be described in detail below with reference to Figures 1 to 13. It should be noted that the present invention is not limited to the illustrated shapes or these embodiments. Within the scope of the present invention, the detailed shapes and positions of each part can be modified as long as they do not hinder the effects of the present invention. 【0019】 The toilet roll bundle packaging 1 (hereinafter also simply referred to as "bundle packaging 1") according to this embodiment is a toilet roll 10 formed by winding a strip of toilet paper 11 onto a paper tube 12, and the toilet roll is gusset-packaged with a resin packaging film 20. In the illustrated form of gusset packaging, the sides 20e, 20e of the cylindrical packaging film 20 are folded inward and flattened, and the top side in particular is fused together. The sides 20e are opened to form a gusset portion 21, and the portion below the bottommost position of the fused portion 22 becomes the bag body portion 20A, in which the toilet roll 10 is contained. Furthermore, a handle portion 24 with a finger hole 23 is formed above the bottommost position of the fused portion 22. On the other hand, the bottom is sealed by fusion in the same way as the top, forming a bottom surface 20L with a sealed portion 51. Hereafter, the surface connected to the handle portion 24 among the surfaces connected to the gusset portion 21 will be referred to as the top surface 20T, one of the two surfaces connected to the top surface 20T and each gusset portion 21 will be referred to as the front surface 20F, and the other surface will be referred to as the back surface 20B. However, the front surface 20F and back surface 20B are relative, and it is not limited to which surface is considered the front surface. 【0020】 For the purposes of this explanation, the direction connecting the top surface 20T and the bottom surface 20L of the toilet roll bundle packaging 1 will be referred to as the height direction, the direction connecting one gusset portion 21 and the other gusset portion 21 will be referred to as the width direction, and the direction connecting the front surface 20F and the back surface 20B will be referred to as the depth direction. 【0021】 In the present invention, the handle portion 24 is preferably formed by arranging linear fused portions 22 in a grid pattern throughout, as shown in the figure. This configuration prevents unintentional opening and allows for a highly rigid handle portion 24. However, the shape and location of the fused portions 22 are not limited in this invention. Furthermore, the fused portions 22 may be formed by heat fusion or ultrasonic fusion. They are not limited as long as they can seal the top side. In addition, in the illustrated configuration, finger holes 23 are formed in two locations, particularly in the center of the width direction of the handle portion 24, but the shape, position, and number of finger holes 23 are also not limited. These configurations relating to gusset packaging are not limited to the illustrated configuration, and known gusset packaging configurations can be adopted as long as they do not hinder the effects of the present invention. 【0022】 On the other hand, in the collective packaging 1 according to the present invention, it is desirable that the toilet rolls 10 be arranged in two or more rows with each end face 13 of the toilet rolls 10 facing in the depth direction and their circumferential surfaces 14 butting together. Specifically, as shown in Figures 3 to 5, this desirable arrangement includes a configuration in which two toilet rolls 10 are arranged in a total of six, with their circumferential surfaces 14 butting together, two in the width direction and three in the height direction, with each end face 13 of the toilet rolls 10 facing in the depth direction, or a configuration in which two toilet rolls 10 are arranged in a total of ten, with their circumferential surfaces 14 butting together, two in the width direction and five in the height direction, with each end face 13 of the toilet rolls 10 facing in the depth direction. Furthermore, although the illustrated configuration shows a single layer of toilet rolls 10 in the depth direction, it is also possible to arrange a total of twelve toilet rolls with six circumferential surfaces 14 butting together and two layers of end faces 13 butting together. These configurations, with the end face 13 of the toilet roll 10 facing the depth direction, allow the back surface 20B to be aligned with the shelf surface when the bundled packaging 1 is displayed on a shelf, enabling multiple bundled packaging 1 to be stacked in the depth direction. With such an arrangement, the axial direction of the paper core of the toilet roll 10 inside the bundled packaging 1 aligns with the depth direction of the bundled packaging 1. Therefore, even when the bundled packaging 1 is stacked, the toilet roll 10 is less likely to be crushed, and if the bundled packaging 1 is made of a film that allows the contents to pass through, consumers can easily see the circumferential surface 14 of the enclosed toilet roll 10, which is preferable. 【0023】 In particular, with gusset packaging, when the handle portion 24 is held, a force is applied that causes the front 20F and the back 20B to move closer together. However, in the arrangement of toilet rolls 10 shown in Figures 3 to 5, there is only one toilet roll 10 between the front 20F and the back 20B, so the toilet rolls 10 do not press against each other, which is particularly preferable in terms of shape retention. However, the arrangement of toilet rolls 10 in the collective packaging 1 according to the present invention is not necessarily limited to these forms, and for example, they may be packaged in a form in which multiple toilet rolls are stacked in the height direction with their circumferential surfaces butted together, with each end face 13 facing the top and bottom directions. 【0024】 The type of resin packaging film 20 according to the present invention is not necessarily limited. Examples include single-layer films of polyethylene film, polypropylene film, polyester film, polyethylene terephthalate film, nylon film, vinylidene chloride film, ethylene vinyl alcohol copolymer, or laminate films appropriately laminated with these films, or gas barrier films obtained by surface treatment such as aluminum vapor deposition on these films. Biomass films derived from plant materials such as sugarcane, sweet potato (starch), and corn can also be used. The use of such biomass films is desirable from the standpoint of environmental protection. Polypropylene film and polyethylene film are particularly suitable because they are inexpensive, have excellent fusion properties, and have appropriate stretch, making it easy to tightly package the toilet roll 10 when used as gusset packaging according to the present invention. The packaging film 20 may also be a matte film with excellent design and tactile properties. The melting point of the film is preferably 150°C or lower. A lower melting point of the packaging film allows for heat fusion treatment at a lower temperature, but the practical lower limit is 80°C. Examples of polypropylene include unoriented polypropylene film (CPP), and examples of polyethylene film include linear low-density polyethylene film (LLDPE), low-density polyethylene film (LDPE), and medium-density polyethylene film (MDPE). 【0025】 On the other hand, the film thickness of the resin packaging film 20 relating to the aggregate packaging 1 shall be 40 to 60 μm. When the film thickness is within the above range, it is easy to fuse the films together to form gusset packaging, and in combination with the structure of the toilet roll 10 described later, the problem of deformation and crushing of the toilet roll 10 can be particularly solved. Furthermore, a preferred packaging film has a softness of 162 mN to 252 mN, a tensile strength (breaking strength) of 11 N to 18 N, and a tensile elongation (breaking elongation) of 632% to 921%. With this packaging film, the problem of deformation and crushing of the toilet roll 10 is particularly improved when gusset packaging is used. Here, the softness is measured using a handle ometer in accordance with JAPAN TAPPI NO. 34. The sample shall be 100 mm x 100 mm in size, and the slit width of the handle ometer shall be 5 mm (±0.5 mm). The film shall be measured 10 times in both the length and width directions, and 5 times each on the front and back. The measured values shall be the average values of the length and width. Tensile strength (breaking strength) and tensile elongation (breaking elongation) shall be measured in accordance with ISO 527-3:2012 (JIS K 7127:1999) using a tensile testing machine, such as a benchtop precision universal testing machine (SHIMADZU AG-X plus) or an equivalent machine. If using software, material testing operation software (TARPEZIUM LITE X) or equivalent software may be used. The sample to be measured shall be 10 mm x 120 mm in size, with a chuck distance of 50 mm and a tensile speed of 500 mm / min in the longitudinal direction. Measurements shall be taken five times in both the length and width, and the average value shall be used. 【0026】 In the collective packaging 1 according to the present invention, it is desirable that the distance L1 from the uppermost position on the top side of the stored toilet roll 10 to the fused portion 22 is 18 to 43% of the diameter of the toilet roll 10. Specifically, it is desirable that the value be 22 mm to 52 mm. Within this range, in combination with the structure of the toilet roll 10 described later, the edges of the end face 13 of the toilet roll 10 are less likely to be crushed when the handle portion 24 is lifted. 【0027】 The bundled packaging 1 may be provided with a tear-off section 50 to facilitate the opening of the packaging film and the removal of the packaged toilet rolls. The tear-off section 50 may be provided, for example, on the top surface 20T connected to the front surface 20F or back surface 20B of the bundled packaging 1. In particular, it is preferable to provide the tear-off section 50 in the center in the width direction of the top surface 20T. When removing the toilet rolls, the bundled packaging 1 can be torn open by tearing the tear-off section 50 and then applying downward force in the height direction while pinching the free end of the tear-off section 50 with one's hand. 【0028】 The crack portion 50 can be formed by a crack-like linear slit. For example, the crack portion 50 may be an inverted U-shaped or arc-shaped crack-like linear slit with the lower end being the end of the line, or a curved crack-like linear slit. 【0029】 The shape of the dehiscing linear slit is not particularly limited, but for example, it can be a perforation in which cut portions and tie portions (uncut portions between cut portions) are arranged alternately in a continuous pattern. In this embodiment, the dehiscing portion 50 is formed by perforations, and the dehiscing portion 50 is formed by tearing the perforations. 【0030】 Furthermore, if the linear slits forming the split portion 50 are perforations, the ratio of the cut portion to the tie portion of the perforations (tie-cut ratio) can be arbitrary, for example, 0.2 to 2.0, preferably 0.25 to 1.5, and more preferably 0.3 to 1.25. 【0031】 On the other hand, the toilet roll 10 stored in the collective packaging 1 according to the present invention is specifically, as shown in Figure 6, made by winding a strip of toilet paper 11 around a paper tube 12, and is particularly preferably rolled to a length of 34.9 to 55.1 m, with 306 to 483 cuts, and with a winding hardness of 68 N to 92 N. With this roll length, number of cuts, and winding hardness, it can be used about 1.5 to 3.0 times more than conventional products with 120 to 240 cuts, and consumers will recognize it as having superior storage and stockability. Furthermore, when consumers hold the handle portion 24 of the packaging film 20 by hand, the edges of the end face of the toilet roll 10 will not easily be crushed. The number of cuts refers to the number of sheets when separated along the perforations. The cuts are made by arranging perforations perpendicular to the manufacturing direction (MD direction) of the toilet paper 11 at predetermined intervals, and the interval (distance between cuts) is 11 to 25 mm, preferably 15 to 20 mm. 【0032】 On the other hand, the toilet paper 11 that forms the toilet roll 10 has a laminated structure in which three or more sheets are stacked together, has a paper thickness of more than 78 μm and less than 100 μm, and the basis weight of each layer is 13.5 g / m². 2 Super 16.0g / m 2 It is preferable that it be less than [a certain value]. 【0033】 Furthermore, a perforation strength of 485-985 cN / 100mm is desirable. This makes it easy to cut during use and also facilitates achieving the desired coil hardness according to the present invention. The perforation strength is measured in accordance with the dry tensile strength measurement method based on JIS P 8113 (2006). Specifically, the test specimen is cut to approximately 25 mm (±0.5 mm) wide x 150 mm long, with the perforation roughly in the center along the length. The test specimen is measured with multiple plies intact. The testing machine used is a Minebea TG-200N load cell tensile testing machine or an equivalent machine. The sample is set with a gripping distance of 80 mm and the perforation in the center. The tensile speed is set to 100 mm / min. The measurement is performed by clamping both ends of the test piece to the grips of the testing machine, applying a tensile load to the paper piece in the vertical direction, and reading the indicated value (or the digital value if indicated digitally) at the point when the perforation breaks. The measurement is performed five times, and the average of these measurements is taken as the perforation strength. 【0034】 The size of the toilet roll 10 according to the present invention is not necessarily limited, but it is desirable that the height (width) L2 is 98 to 101 mm, the diameter (roll diameter) L3 is 118 to 122 mm, and the inner diameter (core diameter) L4 is 36 to 40 mm. This makes it easier to solve the problems of toilet roll crushing and paper quality. The diameter is a value measured using a Diameter Rule manufactured by Muratec KDS Co., Ltd. or an equivalent machine. 【0035】 In particular, the toilet roll 10 according to the present invention is configured to have the same structure as the toilet paper 11 according to the present invention, and its winding hardness is set to be between 68N and 92N. Within this range of winding hardness, the crushing of the toilet roll that occurred in conventional toilet roll bundle packaging can be improved, and the toilet roll can have the same performance quality as conventional products. Here, the winding hardness according to the present invention is the value obtained by measuring the force required to pull three divisions of the π rule scale using a push-pull gauge (manufactured by Imada Co., Ltd.) or an equivalent machine, after winding a diameter rule (manufactured by Muratec KDS Co., Ltd.) or an equivalent machine circumferentially around the center between the end faces of the toilet roll. 【0036】 The dry tensile strength of the toilet paper 11 according to the present invention is preferably 657 cN / 25 mm or more in the longitudinal direction, more preferably 657 to 726 cN / 25 mm, and the dry tensile strength in the transverse direction is preferably 310 cN / 25 mm or more, more preferably 310 to 348 cN / 25 mm. If the dry tensile strength is within the above range, breakage is less likely to occur during manufacturing, and tearing in unintended directions is less likely during use. 【0037】 The toilet paper 11 according to the present invention preferably has an MMD of 9.7 or less on the surface of the surface sheet described later. A more preferable MMD value is 8.9 to 9.4, considering the feel due to the recesses. The MMD is measured using the measuring device 100 shown in Figure 13. The contact surface of the friction element is brought into contact with the surface of a measurement sample to which a tension of 20 g / cm is applied in a predetermined direction, with a contact pressure of 25 g. The friction element is moved 2 cm at a speed of 0.1 cm / s in approximately the same direction as the tension is applied, and the coefficient of friction at this time is measured using a friction tester KES-SE (manufactured by Kato Tech Co., Ltd.) or an equivalent device. The value obtained by dividing the coefficient of friction by the friction distance (movement distance = 2 cm) is the MMD. The friction element consists of 20 piano wires P with a diameter of 0.5 mm arranged adjacent to each other, and has a contact surface formed so that both the length and width are 10 mm. The contact surface has unit bulges formed at the tips of 20 piano wires P (radius of curvature 0.25 mm). 【0038】 On the other hand, the toilet paper 11 according to the present invention has a crem absorbency of 63 to 91 mm / 100 seconds, preferably 70 to 85 mm / 100 seconds. If the crem absorbency of the toilet paper 11 of the present invention is within this range, it can be said to have a high absorbency not found in conventional products, and water solubility is also ensured, so it can be used with peace of mind. The crem absorbency is measured in accordance with JIS-P-8141. The sample shall be 15 mm wide and 200 mm long or more in accordance with JIS-P-8141, but regarding the measurement time, although JIS-P-8141 specifies 10 minutes, the crem absorbency is measured over 100 seconds and the distance penetrated after 100 seconds is used. This is because toilet paper has high water solubility and may dissolve and become unmeasurable after 10 minutes of immersion, and also because in actual use of toilet paper, the amount of water absorbed in a much shorter time than 10 minutes, specifically up to about 100 seconds, is important. Furthermore, the degree of water absorption of the cream in a short time of 100 seconds is also affected by the unevenness of the embossing. Specifically, the degree of water absorption of the cream in a short time differs because the fiber density differs depending on the clarity and depth of the embossing. 【0039】 On the other hand, the toilet paper 11 according to the present invention has a paper thickness of more than 78 μm and less than 100 μm for each layer, and the basis weight of each sheet 30 (each layer) is 13.5 g / m². 2 Super 16.0g / m 2The weight is less than g. By setting the paper thickness and basis weight within the above range, the sheet 30 itself has appropriate stiffness, improving the crushing of the toilet paper 11 in the thickness direction, and achieving an increase in the number of cuts and the length of the roll, while maintaining the same performance quality as conventional products. Furthermore, the toilet roll 10 can be made into a composite packaging 1 that is less prone to crushing. In particular, within this range of paper thickness and basis weight, the effects of the present invention can be more favorably expressed by using the above-mentioned preferred embossing to create recesses 31 and a laminated structure. The basis weight is measured according to the basis weight measurement method of JIS P 8124 (1998). The paper thickness is measured in a 2-ply state using a dial thickness gauge (thickness measuring instrument) "PEACOCK G type" (manufactured by Ozaki Seisakusho) after the test piece has been sufficiently humidified (usually for about 8 hours) under the conditions of JIS P 8111 (1998). Specifically, after confirming that there is no debris or dust between the plunger and the measuring platform, the plunger is lowered onto the measuring platform, the scale on the dial thickness gauge is moved to set the zero point, then the plunger is raised and the sample is placed on the test platform, and the plunger is slowly lowered and the gauge reading is taken at that time. During measurement, the plunger should only be placed on the platform and not pressed down. The terminals of the plunger are made of metal and the circular surface with a diameter of 10 mm should be perpendicular to the paper surface. The paper thickness should be the average value obtained by taking 10 measurements. Here, when measuring paper thickness, crushing of the emboss (recesses) is expected, but the paper thickness according to the present invention is a value measured including such crushing, and such crushing can be ignored. In this paper thickness measurement, the difference in paper thickness caused by crushing of recesses can be ignored. 【0040】 The toilet paper 11 according to the present invention has a laminated structure in which three or more sheets, preferably three to five sheets, are laminated together. Here, in the toilet paper 11 wound on the paper tube 12 of the toilet roll 10, the side facing the paper tube 12 is called the back side, and the opposite side is called the front side. In the laminated sheets that make up the toilet paper 11, the sheet closer to the paper tube 12 is called the back side sheet 30c, and the sheet further away from the paper tube 12 is called the front side sheet 30a. An intermediate sheet 30b may or may not be placed between the front side sheet 30a and the back side sheet 30c. The front side sheet 30a, the intermediate sheet 30b, and the back side sheet 30c each consist of one or more layers of sheets. 【0041】 Here, as shown in Figures 8 and 9, the toilet paper 11 according to the present invention has a laminated structure in which a surface sheet 30a and a back sheet 30c, both having embossed irregularities, are laminated together. Having a laminated structure in which sheets with embossed irregularities are laminated together creates gaps between the sheets, improving water absorption and wiping properties, thus increasing the convenience of the toilet paper 11. Furthermore, when it is wound into a roll and placed in a packaging film as a collective packaging body according to the present invention to form a toilet roll 10Y, in combination with the other components, it is possible to ensure appropriate winding stiffness and edge stiffness, and while maintaining the same performance quality as conventional products, it is possible to improve the crushing of the toilet roll 10 and increase the number of cuts and the length of the roll. 【0042】 Next, we will describe the specific design of the embossing applied to the toilet paper 11 having a laminated structure in which three or more sheets are stacked. In conjunction with the characteristic layered structure of the toilet paper 11 of the present invention, a laminated embossing is particularly desirable, in which recesses 31 (also called macro-embossing) and dot embossing 35 are applied to the surface sheet 30a, and micro-embossing (not shown) is applied to the back sheet 30c. 【0043】 Here, the micro embossments are fine embossments scattered almost throughout the paper surface, and the area of each vertex part is 1.31 - 1.33 mm 2 respectively. The dot embossment 35 has an area of each vertex part of 0.26 - 0.28 mm 2 respectively, and the recess 31 means that it is formed by at least one of a line (line) with a width of 0.50 - 1.0 mm and a surface with an area of 1.31 - 1.33 mm 2 . 【0044】 Note that the area of the recess 31 can be measured, for example, by using a one-shot 3D measurement macroscope VR-3200 manufactured by Keyence Corporation or its equivalent device, and image analysis software "VR-H1A" or its equivalent software. The measurement is carried out under the conditions of a magnification of 12 times and a field area of 24 mm × 18 mm. However, the magnification and the field area can be appropriately changed depending on the size of the embossment (recess). The specific measurement procedure is to visually select one embossment (recess) 31 whose contour is clearly displayed measurably from the image part shown in the plan view using the above software, and measure the area inside the contour. In the case of the basis weight and roll length of the toilet paper according to the present invention, the recess 31 transferred to the sheet can be maintained without excessive collapse. 【0045】 In the toilet paper 11 according to the present invention, the depth of the recess 31 formed on the surface-side sheet 30a by embossing is not necessarily limited. Preferably, by using an embossing roll with a height of the convex part for forming the recess 31 on the sheet 30 being 0.90 mm - 1.40 mm to perform embossing on the sheet to be processed to form a laminated structure, it is adjusted to be within the range of the paper thickness of the toilet paper 11 according to the present invention. In this case, generally, the paper thickness of the part of the sheet 30 without the recess 31 is 78 - 82 μm. The method for measuring the paper thickness of this sheet is the same as the method for measuring the paper thickness of the toilet paper 11. 【0046】 The arrangement of the recesses 31 and dot embossing 35 on the surface sheet 30a in a plan view can be selected as appropriate. An example is shown in Figure 8. In the example in Figure 8, the recesses 31 on the surface sheet 30a are arranged to form a curved grid design and a petal-like design by intermittently arranging the surfaces linearly, and the dot embossing 35 is arranged within the curved grid formed by the recesses. However, the design of the pattern created by the embossing is not limited in this invention. Any pattern can be chosen with aesthetic appeal in mind. In addition, although not shown in the figures, micro-embossing on the back sheet 30c is applied so as to be scattered throughout the entire surface of the paper. 【0047】 In the toilet paper 11 according to the present invention, the shape of each emboss is not necessarily limited. It can be any suitable shape such as rectangle, circle, or ellipse. Multiple shapes may be mixed together. Preferably, it is a shape without corners, such as an ellipse or circle, and particularly preferably a circle. 【0048】 The presence of micro-embossing gives the toilet paper 11 softness and a smooth surface. Furthermore, the presence of recesses 31, 31… gives the toilet paper 11 increased bulk and aesthetic appeal. Additionally, the presence of dot embossing 35, 35… gives the toilet paper 11 thickness and absorbency. Moreover, the recesses 31, 31… remove large amounts of dirt (general waste), the dot embossing 35, 35… removes medium-sized dirt (dirt not wiped away by the recesses 31, 31…), and the micro-embossing removes small amounts of dirt (dirt not wiped away by the recesses 31, 31… and dot embossing 35, 35…). Therefore, the embossing ensures that no residue is left behind during the user's wiping process. 【0049】 On the other hand, in the toilet paper 11 of the present invention, an intermediate sheet 30b can be provided between the surface sheet 30a and the back sheet 30c, and the paper can be made in a form in which the intermediate sheet 30b does not have an embossed surface. In this form, the distance between the intermediate sheet 30b and the surface and back sheets 30a and 30c is not excessively large, and water and waste absorbed by the surface and back sheets 30a and 30c can easily transfer to the intermediate sheet 30b, and the water absorption performance and other properties can be fully demonstrated. 【0050】 Furthermore, in this form of toilet paper 11, the total area of the lines and surfaces of the vertices (recesses) of the dot embossing 35, 35… and recesses 31, 31… on the surface is equal to the area of 100 mm of toilet paper. 2 Approximately 49.4-98.7mm 2 Preferably 61.1 to 98.7 mm 2 More preferably 69.8 to 98.7 mm 2 This is desirable. Within this range, sufficient bulk can be obtained consistently, and the absorbency will be excellent. The paper will not be too shallow relative to the depth of the embossing, resulting in a thick toilet paper 11. 【0051】 In addition, the total area ratio of the vertices (recesses) of the micro-embossing to the total surface area of the outer side (the side not facing the front sheet 30a) of the back sheet 30c is preferably 88.4 to 95.3%, more preferably 93.1 to 95.3%. If the total area ratio is within this range, sufficient flexibility and smoothness can be obtained, and ply separation will be less likely to occur. To prevent this ply separation, the plies may be bonded together at the vertices of the micro-embossing, and within this range, the flexibility of the paper will not be impaired. 【0052】 On the other hand, in this toilet paper 11, the recesses 31 can be nested double embossed. The toilet paper 11 preferably has a laminated structure in which, as shown in Figure 9, each sheet 30, 30 has recesses 31 on one side and protrusions 32 corresponding to the recesses 31 on the other side, and the protrusions 32 of one sheet 30 face the portion of the other sheet 30 where the protrusions 32 are not formed, and the protrusions 32 of the other sheet 30 face the portion of the first sheet 30 where the protrusions 32 are not formed, so that the protrusion-forming surfaces of the sheets 30 face each other and only recesses 31 are formed on the front and back. This allows for a greater number of protrusions 32 to be bridged between sheets than in a laminated structure where the protrusions of each sheet face each other, so the distance between sheets can be shortened and the paper thickness can be reduced. On the other hand, the cross-linking of the protrusions 32 makes the toilet paper 11 itself less likely to be crushed in the thickness direction, and even if the roll hardness is increased, it will still be less likely to be crushed in the thickness direction, improving the crush resistance of the toilet roll 10 and making it easier to guarantee the same level of performance as conventional products. 【0053】 In this laminated structure, the area of each recess 31 formed in each sheet 30 is 4.936 mm². 2 Super 9.872mm 2 It is desirable that the area be less than the specified value. The area of the recesses 31 is measured for any 10 recesses, and the average value is taken as the final area of the recesses. When the area of a single recess 31 is within the above range, the absorbency and ease of wiping are excellent. Furthermore, because a sufficient number of protrusions are cross-linked between the sheets, the toilet roll 10 is particularly excellent in terms of improving crushing. The upper limit of the total area ratio of the recesses 31 is not necessarily limited, but it is at most 88.4%, preferably 79.5%, and particularly preferably 70.7%. Within this range, there is a good balance between the parts where the recesses 31 are formed by embossing and the rigidity is increased, and the parts where the recesses 31 are not formed and the rigidity is not increased. The total area ratio of the recesses 31 is the percentage of the total area of the recesses 31 relative to the unit area of the toilet paper. 【0054】 Next, the method of applying the embossing described above will be explained with reference to Figure 10. Figure 10 shows an example of applying unevenness to the surface sheet 30a and the back sheet 30c. However, the method is not limited to this. For a laminated sheet of toilet paper 11 consisting of three or more sheets, it is desirable that the unevenness be achieved by embossing using the steel-rubber method. As shown in Figure 10, the steel-rubber method applies unevenness to each sheet by embossing by passing it between a metal embossing roll 41, which has numerous embossing protrusions corresponding to the embossing shape and embossing pattern formed on its surface, and a receiving roll 42 whose surface is made of an elastic material that receives the embossing roll 41. In particular, to create the nested type described above, unevenness is formed by embossing on the surface sheet 30a and the back sheet 30c, and the sheets are laminated so that the protrusions face each other and their positions are offset. The laminated sheet formed in this process becomes toilet paper 11. After that, it is wound onto a long cardboard tube to become a narrow toilet paper roll. 【0055】 If an intermediate sheet 30b is also used in addition to the surface sheet 30a and the back sheet 30c, for example, the surface sheet 30a and the intermediate sheet 30b may be pre-laminated to produce a laminated sheet, and then embossed irregularities may be formed on the laminated sheet and the back sheet 30c. 【0056】 Furthermore, if dot-shaped embossing 35 is to be applied to the sheet 30 in addition to the recessed areas 31, a metal embossing roll capable of applying both recessed and dot embossing should be used. 【0057】 It is desirable that the laminated sheets 30 are bonded together with adhesive. In the case of a laminated sheet consisting of a surface sheet 30a and a back sheet 30c, specifically, adhesive may be applied to the entire surface of the opposing surfaces of one sheet 30 or both sheets 30, 30, and the sheets may be bonded together at the raised portions 32 created by embossing, or adhesive may be applied to the tops of the raised portions 32 created by embossing on one sheet 30 or both sheets 30, 30, and the sheets 30, 30 may be bonded together at the raised portions 32. In this case, adhesive may be applied to only some of the raised portions 32, rather than all of them, and the surface sheet 30a and the back sheet 30c may be bonded together by the adhesive applied to the tops of some of the raised portions 32. To apply adhesive to the tops of the raised portions in particular, for example, adhesive may be applied to the surface sheet 30a and the back sheet 30c, which are being transported while wrapped around an embossing roll as shown in Figure 10, using a gluing device 43. Because the sheets are bonded together, they are less likely to shift, the convex portions 32 that are cross-linked between the sheets are less likely to be crushed, the concave portions 31 created by the embossing provide excellent water absorption and wiping properties, and furthermore, the increased rigidity makes it less likely to be crushed in the thickness direction, resulting in particularly excellent improvement in preventing the toilet roll 10 from being crushed. 【0058】 The adhesive according to the present invention can be any known adhesive used in toilet paper 11 having a laminated structure. Examples of such adhesives include hot melt adhesives, polyvinyl alcohol, starch, modified starch, carboxymethylcellulose, and the like. A hot melt adhesive is preferred for the toilet paper 11 of the present invention, and is particularly preferred when a nested laminated structure is used. Hot melt adhesives increase the rigidity of the protrusions 32 without impairing softness or flexibility, and make it easier to prevent crushing between sheets. In addition, since hot melt adhesives can form bumps and dips while melting the adhesive, it is easier to maintain the bumpy shape deformed by embossing. In this way, because it is excellent in maintaining the shape of bumps and dips while maintaining flexibility and softness, it is easy to make the roll stiffer and more resistant to crushing when packaged with film, while maintaining the same quality as conventional products without particularly reducing water absorption, etc. In particular, when using this hot melt adhesive, its concentration is 1.1% to 2.5% by mass, preferably 1.5% to 2.0% by mass. The advantages of the hot melt adhesive mentioned above are easily realized. 【0059】 Furthermore, the toilet paper 11 according to the present invention can have a total of four layers (five plies), such as the one shown in Figure 11, consisting of a single layer (one ply) intermediate sheet 30b, a two-layer (two-ply) surface sheet 30a, and a single layer (two-ply) back sheet 30c, or it can have a laminated structure of three to six plies. Figures 12(A) to (E) illustrate a laminated structure of four to six plies. Regarding embossing, various forms can be created by applying recesses 31 to the surface sheet 30a, leaving the intermediate sheet 30b unembossed, and applying micro-embossing to the back sheet 30c, and then laminating these layers. Alternatively, nested embossing can be applied to all sheets, including the surface sheet 30a, the intermediate sheet 30b, and the back sheet 30c. 【0060】 On the other hand, it is desirable that the toilet paper 11 according to the present invention has a transverse absorption height of 73 mm / 100s or more. The transverse absorption height is an indicator of the absorbency of the toilet paper 11. If it is 73 mm / 100s or more, it can be said that it has the same absorbency as conventional toilet paper 11, and that it is not inferior to conventional toilet paper in terms of quality, especially in terms of absorbency. Here, the transverse absorbency is measured as follows. The toilet paper is cut to a length of 250 mm or more in the vertical direction and 15 mm ± 1 mm in the transverse direction to be used as a sample. Five samples are prepared. The test machine used is an absorbency meter (model number: XSY-200, manufactured by Hangzhou Qingtong & Boke Automation Technology Co., Ltd.) or an equivalent machine. Ionized water is placed in the absorbency box of this test machine. The water level is set to the isolation plate in the middle of the absorbency box. Lower the handle of the testing machine, and once you hear a "click" sound, insert the standard ruler into the ionized water and check that the portion of the five rulers on the testing machine that is inserted into the water (insertion height) is 5 mm. If the insertion heights of the five rulers are different, adjust the height of the screws on the equipment to make the heights of the rulers the same. Next, raise the handle of the testing machine and set the sample in the water absorption measurement equipment. At this time, make sure that the top of the sample is aligned with the top of the ruler. Then, slowly lower the handle of the testing machine and insert the sample vertically to the 5 mm position in the ionized water, and at the same time measure 100 seconds with a stopwatch, and after 100 seconds, visually read the height of the absorbed liquid and record it in 1 mm increments. 【0061】 On the other hand, the toilet paper 11 according to the present invention should have a flexibility of 73 to 94 mN, preferably 61 to 90 mN. If the flexibility is within this range, the edges of the toilet roll 10 made of the toilet paper 11 will not be easily crushed, and the toilet paper 11 will be comfortable to hold and have excellent wiping properties when used. The flexibility is measured using a handle ometer in accordance with JAPAN TAPPI NO. 34. The sample will be 100 mm x 100 mm in size, and the slit width of the handle ometer will be 5 mm (±0.5 mm). The film will be measured 10 times in both the length and width directions, with 5 measurements taken on each side. The measured value will be the average of the length and width. 【0062】 On the other hand, it is desirable that the toilet paper 11 according to the present invention has a wet tensile strength of 40 cN / 25 mm or more in the longitudinal direction and a wet tensile strength of 20 cN / 25 mm or more in the transverse direction. Sufficient strength and firmness can be obtained when in use. In particular, it is possible to ensure strength and firmness during use that is comparable to that of conventional toilet paper. In addition, it is easy to adjust the winding stiffness to an appropriate level when rolled. The longitudinal direction of the paper is also called the MD direction and is the flow direction during papermaking. The transverse direction of the paper is also called the CD direction and is the direction perpendicular to the flow direction (MD direction) during papermaking. Furthermore, the wet tensile strength according to the present invention is a value measured based on JIS P 8135 (1998) and is measured as follows. Test pieces are cut to a width of approximately 25 mm (±0.5 mm) in both the longitudinal and transverse directions. The testing machine is a Minebea Co., Ltd. load cell tensile testing machine TG-200N or an equivalent machine. The gripping distance is set to 80 mm, and the tensile speed to 100 mm / min. The test specimens are cured in a 105°C dryer for 10 minutes. After clamping both ends of the test specimen to the grips of the testing machine, water is applied horizontally to the center of the specimen in a width of approximately 10 mm using a water-soaked flat brush. Immediately afterward, a tensile load is applied to the paper in the vertical direction, and the measurement is performed by reading the indicated value (digital value) when the paper breaks. Five sets of samples are prepared and measured five times each, and the average of these measured values is taken as the wet tensile strength. 【0063】 On the other hand, the constituent fibers of the toilet paper 11 according to the present invention are not necessarily limited, but it is preferable that they be 100% by mass of pulp. In particular, when it is 100% by mass of pulp, it is preferable that it is composed of pulp derived from coniferous trees (also called N material) and pulp derived from hardwoods (also called L material). In this case, it is preferable that the ratio of N material to L material be L material: 0-50%, N material: 100-50%. Examples of pulp derived from coniferous trees (N material) include NOKP (coniferous kraft pulp) and NBKP (bleached coniferous pulp). Examples of pulp derived from hardwoods (L material) include LOKP (hardwood kraft pulp) and LBKP (bleached hardwood pulp). 【0064】 In particular, it is preferable that the toilet paper 11 according to the present invention contains LBKP and NBKP as constituent fibers, and when the ratio of LBKP to NBKP is 65:35 to 80:20, the edges of the toilet paper 11 become hard and less likely to be crushed when it is wound into a toilet roll 10. 【0065】 In particular, it is desirable that 10% by mass or more of the constituent fibers of the toilet paper 11 according to the present invention are softwood kraft pulp that has been oxygen-disintegrated and chlorine-bleached. Preferably, 35% by mass or more, and especially preferably, substantially 100% by mass, without considering impurities, is softwood kraft pulp that has been oxygen-disintegrated and chlorine-bleached. More specifically, this softwood kraft pulp is also called NOKP and is manufactured by continuous oxygen disintegration in a continuous digester, and in particular, is subsequently bleached with a chlorine-based bleaching agent. Here, the kraft pulp (KP) used in toilet paper comes in bleached and unbleached varieties, and the unbleached variety contains a large amount of lignin. This NOKP is unbleached with a chlorine-based bleaching agent, but because it has undergone oxygen disintegration (oxygen deligninization), about half of the lignin has been removed. Note that the chlorine-based bleaching agent includes not only chlorine, but also chlorine dioxide and sodium hypochlorite. Therefore, ECF pulp is not the same as the coniferous kraft pulp according to the present invention. 【0066】 This preferred toilet paper 11 contains 10% by mass or more, preferably 20-35% by mass or more, of softwood kraft pulp that has been bleached with chlorine-based bleaching agents and deligninized by oxygen pulping. In other words, because it is manufactured using such softwood kraft pulp as the main fiber material, especially as the total fiber material, it provides a sense of safety for the human body during use and is environmentally friendly. Toilet paper containing 35% by mass or more of bleached softwood kraft pulp is white, giving a clean impression visually, and also has a soft feel, which gives consumers a great sense of security. 【0067】 On the other hand, NOKP has its lignin content reduced to about half of what it was before oxygen pulping through delignin treatment by oxygen pulping. Therefore, it is easier to achieve softness and firmness compared to pulp that has not undergone any delignin treatment. In addition, because it is derived from coniferous trees, it has longer fibers than pulp derived from hardwoods, resulting in less paper dust generation. Combined with the fact that the fibers do not become densely packed due to lignin, it has excellent cushioning properties. 【0068】 While other fiber components besides NOKP are not necessarily limited, oxygen-permeable and / or chlorine-bleached hardwood kraft pulp (LOKP) is preferable because it provides a white appearance, a sense of cleanliness, and a vivid color contrast with excrement, which is desirable for users to monitor their health and provides a sense of security. Other virgin pulp or recycled paper pulp may also be used. 【0069】 The toilet paper 11 according to the present invention preferably contains pulp fibers that are not unbeaten. The degree of beating of the papermaking raw material during manufacturing is not necessarily limited, but it is preferable to beat it so that the reduction in Canadian standard water content is 20cc to 50cc. This reduction is much smaller than the beating range of general papermaking raw materials. In this case, the Canadian standard water content of the papermaking raw material will be approximately 600cc or more. By beating the pulp fibers in this way, without leaving any unbeaten fibers, the softener can easily adhere to the fiber surface when added internally, and the fibers will intertwine appropriately, making it easier to achieve the desired low paper thickness, resulting in excellent softness and a good fluffy feel. Furthermore, paper dust generation becomes extremely low. Further adjustment of the paper thickness can be done by adjusting the crepe ratio. 【0070】 In addition, kitchen paper rolls are another type of roll product that is used daily, similar to toilet paper rolls, but kitchen paper rolls differ in size, such as the length used by the user in a single use and the diameter of the roll, and therefore have a different design philosophy, making it difficult to design them in the same way as the toilet paper rolls of the present invention. 【0071】 The effects of the toilet paper bundle packaging according to the present invention will be further explained below with reference to examples. [Examples] 【0072】 Next, sensory evaluations were conducted on the "softness," "thickness," "texture (smoothness)," "absorbency," and "overall satisfaction" of the toilet paper rolls according to the toilet paper aggregate packaging of the present invention, as well as the toilet paper itself. The physical properties and composition of the toilet paper and toilet rolls for each example are shown in Table 1 below. Examples 1 to 5 and Comparative Examples 1 to 4 were manufactured as toilet rolls. The embossing of the toilet rolls for each example was the pattern shown in Figure 8, and the laminated structure was a nested type. Dry tensile strength was measured according to JIS P 8113 (2006), and test specimens were cut to a width of 25 mm (±0.5 mm) in both the longitudinal and transverse directions. The test specimens were measured as 3-ply, and the measured value was divided by 3 to obtain the result for 1-ply. The testing machine used was a Minebea TG-200N load cell tensile testing machine, with a gripping distance of 80 mm and a tensile speed of 100 mm / min. 【0073】 For the sensory evaluation, 25 subjects actually used the samples related to each example and scored each item on an absolute scale of 1 to 5 points for "softness," "thickness," "texture (smoothness)," "water absorption," and "overall satisfaction." The average score was used as the evaluation value. The evaluation was set with 3 points (median) representing average (neither good nor bad), up to 5 points for good, and down to 1 point for poor, with each point difference being used. 【0074】 [Table 1] 【0075】 As shown in Table 1, when the physical properties were examined, the examples that satisfied the physical properties according to the present invention showed results that were equivalent to or better than Comparative Examples 1 to 3, which had the same winding length and number of cuts as the conventional product, particularly in terms of roll hardness and lateral water absorption (water absorption height). In each sensory evaluation, the results were also equivalent to or better than Comparative Examples 1 to 3, which had the same winding length and number of cuts as the conventional product. 【0076】 Next, tensile tests, durability tests (handle), durability tests (tear), durability tests (bottom tear), and opening tests were performed on the toilet roll bundles in which toilet rolls were gusset-packaged. As shown in Figure 3, the packaging film used for the tests consisted of six toilet rolls arranged in a gusset configuration, with each end face of the toilet roll facing the depth direction and the circumferential surfaces butted together, two in the width direction and three in the height direction. The packaging film was made of polyethylene resin with a thickness of 45 μm, and had a softness of 211 mN, a tensile strength (breaking strength) of 14.4 N, and a tensile elongation (breaking elongation) of 778%. The toilet rolls used were those from Example 2 described above. The toilet roll bundles were designated as Test Examples 11 to 25. 【0077】 Durability tests (handle), durability tests (tear), and durability tests (bottom tear) were conducted by having the subject insert their fingers through the finger holes in the toilet roll bundle packaging, hold the handle, and swing the toilet roll bundle packaging 10 times back and forth in a pendulum-like motion within a 180° range from the hand. This motion was performed 5 times for each test example. The durability test (handle) was evaluated according to the following criteria. ○: After conducting the test five times, no tears were found in the handle. ×: After conducting the test five times, a tear was found in the handle. 【0078】 Durability tests (at the cracked area) were evaluated according to the following criteria. ○: After conducting the test five times, no tearing or stretching of the perforations was observed at the split area. ×: After conducting the test five times, tearing or stretching of the perforations was observed at the cracked area. 【0079】 Durability tests (tears in the bottom) were evaluated according to the following criteria. ○: After conducting the test five times, no tears were found on the bottom surface. ×: After conducting the test five times, a tear was found on the bottom. 【0080】 The opening test involved tearing open the split section 50 formed on the top surface 20T with one hand along the inverted U-shaped perforations. The test was performed five times for each test example and evaluated according to the following criteria. ○: In all five attempts, I was able to open it with one hand along the perforations. ×: I was unable to open the package along the perforations with one hand at least once out of five attempts. 【0081】 The results are shown in Table 2. [Table 2] 【0082】 These results indicate that the toilet roll according to the present invention has sufficiently high water absorption and stiffness while increasing the length and number of cuts, and also provides a satisfactory user experience. Therefore, it can be said that this toilet roll packaging improves upon the crushing of toilet rolls that occurred in conventional toilet roll packaging, and achieves the increase in the number of cuts and length desired by consumers, while maintaining the same performance quality as conventional products. 【0083】 Furthermore, after conducting the durability test described above, we checked the degree of crushing of the packaged toilet rolls, and none were found to be crushed. [Explanation of Symbols] 【0084】 1...Toilet roll bundle, 10...Toilet roll, 10X...Unpackaged toilet roll, 10Y...Individually packaged toilet roll, 11...Toilet paper, 12...Paper tube, 13...End face, 14...Surface, 20...Gusseted bag (packaging film), 20A...Bag body, 20T...Top, 20F...Front, 20B...Back, 20L...Bottom, 20e...Side, 21...Gusset, 22...Fusing L1...Finger hole, L2...Handle, L3...Sheet, L4...Sheet, L1...Front sheet, L2...Middle sheet, L4...Back sheet, L1...Recess, L2...Dot emboss, L3...Embossing roll, L4...Elastic roll, L5...Gluing device, L6...Tear opening, L1...Distance between top surface and fused part, L2...Width of toilet roll, L3...Diameter of toilet roll, L4...Diameter of toilet roll core.
Claims
[Claim 1] Toilet rolls, which are toilet paper rolled into a roll, It is gusset-packaged with a plastic packaging film. A toilet roll assortment package, The thickness of the aforementioned packaging film is 40 to 60 μm. The aforementioned toilet roll has a roll length of 34.9 to 55.1 m, a number of cuts of 306 to 483, and a roll hardness of 68 N to 92 N. The aforementioned toilet paper has a laminated structure in which three or more sheets are stacked together, with the paper thickness of each layer being more than 78 μm but less than 100 μm, and the basis weight of each layer being 13.5 g / m². 2 Super 16.0g / m 2 Less than, A toilet roll assortment packaging characterized by the following features. [Claim 2] The aforementioned sheet is formed by laminating one or more surface sheets and one or more back sheets, and has a recess on one side and a protrusion corresponding to the recess on the other side. The toilet paper assembly package according to claim 1, wherein the convex portion of one sheet faces the portion of the other sheet where no convex portion is formed, and the convex portion of the other sheet faces the portion of the first sheet where no convex portion is formed, so that the convex-forming surfaces of the sheets face each other and only recesses are formed on the front and back. [Claim 3] The aforementioned toilet paper has a recessed area of 4,936 mm² per sheet. 2 Super 9,872mm 2 The toilet roll aggregate packaging according to claim 1 or 2, wherein the total area ratio of recesses per side is less than 44.2% or more. [Claim 4] The toilet paper is a toilet roll assortment package according to claim 1 or 2, wherein the toilet paper has a lateral absorption height of 63 mm / 100s or more. [Claim 5] The toilet paper has a dry tensile strength in the longitudinal direction of 657 cN / 25 mm or more and a dry tensile strength in the transverse direction of 310 cN / 25 mm or more, as described in claim 1 or 2 of the toilet roll assembly packaging.
Citation Information
Patent Citations
Toilet roll
JP2018061824A
JP2019‐81602A