Sanitary paper roll packaging

Abstract

To provide a hygienic paper roll packaging that is environmentally friendly, and that also achieves both reduced tearing of the packaging bag and aesthetic appeal. [Solution] A sanitary paper roll packaging body 1 is formed by wrapping multiple sanitary paper rolls 2 with paper material, wherein the length Y between the ends of the paper material, when the packaging portion of the body of the sanitary paper roll packaging body 1 is cut parallel to the axis of the sanitary paper rolls 2 and unfolded, in a direction perpendicular to the cutting direction, is 95.0% or more and 105.0% or less of the theoretical circumference L of the multiple sanitary paper rolls 2 arranged in parallel in the sanitary paper roll packaging body 1, and the winding density of the sanitary paper rolls is 0.65 m / cm². 2 More than 1.30m / cm 2 The following applies:

Description

[Technical Field]

[0001] The present invention relates to a sanitary paper roll packaging body, which is formed by packaging a roll of sanitary paper. [Background technology]

[0002] Conventionally, toilet paper, kitchen paper, and other sanitary paper rolls are generally packaged in sets of multiple rolls in a plastic film to maintain hygiene and prevent dust and dirt from adhering to them. For example, Patent Document 1 describes a packaging body in which sanitary paper rolls are packaged in two rows with a plastic film, and the packaging body is designed so that the opening line formed on the packaging bag does not break when the gripping area between the sanitary paper rolls, which is created when the rolls are packaged in two rows, is grasped. [Prior art documents] [Patent Documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2018-90255 [Patent Document 2] Japanese Patent Application Publication No. 01-226512 [Overview of the project] [Problems that the invention aims to solve]

[0004] Incidentally, in recent years, the problem of plastic waste has become increasingly serious worldwide, and there is a demand to replace plastic packaging materials with other materials in order to improve the global environment. The packaging bag described in Patent Document 1 is also made of plastic, and there is still room for improvement in the selection of materials for packaging bags that wrap multiple rolls of sanitary paper.

[0005] Furthermore, the dimensions of the packaging bags used to wrap multiple rolls of sanitary paper must be appropriately designed from the perspective of preventing tearing of the packaging bags during the packaging process, transportation, product display, and actual use, as well as maintaining the aesthetic appearance of the packaging.

[0006] An object of the present invention is to provide a toilet paper roll package that is friendly to the global environment and can achieve both suppression of breakage of the packaging bag of the package and the beauty of the package.

Means for Solving the Problems

[0007] The toilet paper roll package according to the present invention is a toilet paper roll package formed by wrapping a plurality of toilet paper rolls with a paper material around the body. The length Y between both ends in the direction orthogonal to the cutting direction of the paper material obtained by cutting and unfolding the packaging portion of the body of the toilet paper roll package parallel to the axis of the toilet paper roll is 95.0% or more and 105.0% or less of the theoretical circumference L of the plurality of toilet paper rolls arranged in parallel in the toilet paper roll package.

[0008] By adopting a paper material as the material of the packaging bag for packaging a plurality of toilet paper rolls, a toilet paper roll package friendly to the global environment can be realized, and the degree of slack of the packaging bag is optimized, so that it is possible to achieve both suppression of breakage of the packaging paper and the beauty of the package.

[0009] Further, the toilet paper roll package according to the present invention is characterized in that the toilet paper roll is 1-ply, the winding length of the toilet paper roll is 50 m or more and 150 m or less, and the winding density of the toilet paper roll is 0.65 m / cm 2 or more and 1.30 m / cm 2 or less.

[0010] By setting the winding length of the single-ply toilet paper roll according to the present invention within the numerical range, the frequency of roll replacement is reduced, and when carrying the packaging bag of the package by pinching it from both sides with one hand, it has an appropriate weight, so the possibility of the packaging bag of the package being torn is reduced. And by setting the winding density of the single-ply toilet paper roll according to the present invention within the numerical range, it becomes difficult for the toilet paper roll to be crushed by the pushing during adhesion in the packaging process, and the toilet paper roll becomes more resistant to deformation. Therefore, when carrying the packaging bag of the package by pinching it with one hand, the finger pressure is dispersed and it is difficult to concentrate on one point of the packaging bag, and the packaging paper is not easily torn.

[0011] Furthermore, the toilet paper roll package according to the present invention is characterized in that the toilet paper roll is two-ply, the winding length of the toilet paper roll is 25 m or more and 75 m or less, and the winding density of the toilet paper roll is 0.65 m / cm 2 or more and 1.30 m / cm 2 or less.

[0012] By setting the winding length of the two-ply toilet paper roll according to the present invention within the numerical range, the frequency of roll replacement is reduced, and when carrying the packaging bag of the package by pinching it from both sides with one hand, it has an appropriate weight, so the possibility of the packaging bag of the package being torn is reduced. And by setting the winding density of the two-ply toilet paper roll according to the present invention within the numerical range, it becomes difficult for the toilet paper roll to be crushed by the pushing during adhesion in the packaging process, and the toilet paper roll becomes more resistant to deformation. Therefore, when carrying the packaging bag of the package by pinching it with one hand, the finger pressure is dispersed and it is difficult to concentrate on one point of the packaging bag, and the packaging bag is not easily torn.

[0013] In addition, the toilet paper roll package according to the present invention is characterized in that the basis weight of the paper material of the toilet paper roll package is 40.0 g / m 2 or more and 80.0 g / m 2 or less, and the density of the paper material is 0.60 g / cm 3 or more and 0.90 g / cm 3 or less.

[0014] By setting the basis weight of the paper material of the sanitary paper roll packaging according to the present invention within the specified numerical range, the packaging bag becomes less likely to tear when carried with one hand, and manufacturing costs can be reduced. Furthermore, by setting the density of the paper material of the sanitary paper roll packaging according to the present invention within the specified numerical range, the bulk and inter-fiber bonding are optimized, making the packaging bag less likely to tear when carried with one hand, and the rigidity is optimized, resulting in excellent packaging processability. [Effects of the Invention]

[0015] According to the present invention, by using paper material for the packaging bag that wraps multiple rolls of sanitary paper, an environmentally friendly sanitary paper roll packaging can be realized. Furthermore, since the degree of sagging of the packaging bag is optimized, it is possible to suppress tearing of the packaging bag and achieve both the aesthetic appeal of the packaging. [Brief explanation of the drawing]

[0016] [Figure 1] This is an overall perspective view of a sanitary paper roll packaging body according to one embodiment of the present invention. [Figure 2] This is a top view of a sanitary paper roll packaging according to one embodiment of the present invention. [Figure 3] This is a plan view of a packaging bag for a sanitary paper roll packaging body according to one embodiment of the present invention, after the adhesive on the top and bottom of the sanitary paper roll packaging body has been peeled off and the adhesive on the adhesive tab has been peeled off. [Figure 4] This is a plan view of a packaging bag for a roll of sanitary paper according to one embodiment of the present invention, obtained by peeling off the adhesive between the top and bottom of the roll of sanitary paper and cutting along the cutting line CL to unfold it. [Modes for carrying out the invention]

[0017] The form of the sanitary paper roll packaging according to the present invention will be described in detail with reference to Figures 1-4. However, the present invention is not limited to the embodiments described herein.

[0018] As described above, the sanitary paper roll according to the present invention is a roll of sanitary paper such as toilet paper or kitchen paper. In the following description of the sanitary paper roll packaging, we will explain a form in which the toilet roll is packaged in a paper packaging bag (hereinafter also referred to as "packaging paper").

[0019] In this specification, the claims, and the drawings, the "height direction," "width direction," and "length direction" are to be considered orthogonal to each other.

[0020] <Structure> Figure 1 is an overall perspective view of a sanitary paper roll packaging 1 according to one embodiment of the present invention, Figure 2 is a top view of the sanitary paper roll packaging 1 according to this embodiment, Figure 3 is a plan view of the packaging bag 10 of the sanitary paper roll packaging 1 according to this embodiment, after peeling off the adhesive on the top and bottom of the sanitary paper roll packaging 1 and peeling off the adhesive on the adhesive tab 11 and unfolding it, and Figure 4 is a plan view of the packaging bag of the sanitary paper roll packaging 1 according to this embodiment, after peeling off the adhesive on the top and bottom of the sanitary paper roll packaging 1 and cutting along the cutting line CL and unfolding it. The packaging paper unfolded without cutting in Figure 3 is called 10B, and the packaging paper unfolded after cutting in Figure 4 is called 10C.

[0021] The sanitary paper roll packaging 1 according to the present invention is made by wrapping a plurality of sanitary paper rolls 2 with a paper material. As shown in Figure 1, the sanitary paper roll packaging 1 according to this embodiment is made by wrapping four toilet rolls 2 in 2 rows x 2 columns with a paper material in a caramel-like packaging. Examples of the paper material include coated paper, kraft paper, and laminated paper. The paper material is obtained by papermaking a slurry containing a pulp component, which is a fiber raw material. Examples of the pulp component include wood pulp, non-wood pulp, and recycled paper pulp. The total number of sanitary paper rolls 2 contained in the sanitary paper roll packaging 1 is preferably an even number, eight rolls or less, and more preferably four rolls. In addition, a known type of caramel packaging may be used, for example, the packaging means described in Patent Document 2 may be used. Specifically, for example, first, the sanitary paper rolls 2 placed on a flat paper material are wrapped by being rolled up, and the overlapping parts in the rolling direction are bonded. This bonding is done, for example, by heat sealing. Next, the excess portion that extends beyond the end face of the sanitary paper roll 2 is folded towards the end face of the sanitary paper roll 2 (along the fold line indicated by the symbol FL in Figure 3). Then, the leading edges of the triangular or trapezoidal pieces formed during the folding process are glued together to cover the sanitary paper roll 2 from both the upper and lower end faces. A known device can be used as the apparatus for performing this type of caramel packaging.

[0022] The sanitary paper roll 2 according to the present invention consists of a 1-ply (or 2-ply) paper section 20 and a paper core 21. The winding diameter of the sanitary paper roll 2 is preferably 100 mm to 130 mm, and more preferably 105 mm to 125 mm. The outer diameter of the core of the paper core 21 is preferably 37 mm to 42 mm, and more preferably 38 mm to 41 mm. Here, the number of plies represents the number of layers of sanitary paper roll.

[0023] Furthermore, in the sanitary paper roll packaging 1 according to the present invention, the length Y (see Figures 1 and 4) between the two ends of the paper material unfolded by cutting the packaging portion of the body of the sanitary paper roll packaging 1 parallel to the axis of the sanitary paper roll 2 is 95.0% or more and 105.0% or less of the theoretical circumference L of the multiple sanitary paper rolls 2 arranged in parallel in the sanitary paper roll packaging 1, as described later. The Y / L ratio is preferably 96.5% or more and 103.5%, and more preferably 98.0% or more and 102.0% or less.

[0024] The length Y can be said to be the width of the sanitary paper roll 2 after the adhesive between the top and bottom of the sanitary paper roll packaging 1 (the top and bottom surfaces of the sanitary paper roll packaging 1 in Figure 1) has been removed, and the packaging paper has been cut parallel to the roll axis 2A of the sanitary paper roll 2 (along the cutting line CL in Figure 1) and unfolded (see Figure 4).

[0025] The theoretical perimeter L can be expressed as the sum of the total length of the common tangent lines of multiple equal circles (indicated as CSL1 and CSL2 in Figure 2) and the circumference of one circle (indicated as CAL1 and CAL2 in Figure 2), when multiple sanitary paper rolls 2 stored in the sanitary paper roll packaging 1 are viewed from above in the same arrangement as when stored in the sanitary paper roll packaging 1 (unpackaged state). Specifically, if the radius of one sanitary paper roll 2 is r (mm), the number of sanitary paper rolls 2 in the width direction when the sanitary paper rolls 2 are placed in parallel is nX, and the number of sanitary paper rolls 2 in the length direction is nY, then the theoretical perimeter L (mm) can be expressed as 2πr + 4 × (nX - 1)r + 4 × (nY - 1)r.

[0026] In this embodiment, by using a paper material for the material of the packaging bag 10 that wraps a plurality of toilet paper rolls 2, a toilet paper roll package 1 that is friendly to the global environment is realized. Also, since the degree of slack of the packaging bag 10 is appropriately adjusted, it becomes possible to achieve both suppression of breakage of the packaging bag and the cosmetic property of the package. Regarding the degree of slack, if the length Y is less than 95.0% of the theoretical circumference L, it is in a tightly wound state and the packaging bag is likely to break. If the length Y exceeds 105.0% of the theoretical circumference L, the packaging bag becomes slack and the cosmetic property of the toilet paper roll package deteriorates.

[0027] As a further specific example of this embodiment, the basis weight of the paper material of the packaging bag 10 of the toilet paper roll package 1 is 40.0 g / m 2 or more and 80.0 g / m 2 or less, and the density of the paper material may be 0.60 g / cm 3 or more and 0.90 g / cm 3 or less. The basis weight is preferably 42.5 g / m 2 or more and 70.0 g / m 2 or less, more preferably 45.0 g / m 2 or more and 60.0 g / m 2 or less. Also, the density is preferably 0.65 g / cm 3 or more and 0.85 g / cm 3 or less, more preferably 0.70 g / cm 3 or more and 0.80 g / cm 3 or less.

[0028] According to this embodiment, when picking up and carrying the packaging bag 10 of the toilet paper roll package 1 with one hand, it is difficult to break, and the manufacturing cost can be suppressed. And according to this embodiment, since the bulk and the fiber-to-fiber bond are optimized, when picking up and carrying the packaging bag 10 of the toilet paper roll package 1 with one hand, it is difficult to break, and since the rigidity is optimized, it has excellent packaging processability. On the other hand, if the basis weight is less than 40.0 g / m 2 , it is likely to break when picking up the toilet paper roll package with one hand, and if it is higher than 80.0 g / m 2 , it will lead to a cost increase. If the density is 0.60 g / cm 3If it is less than 0.90 g / cm³, it is bulky and has few interfiber bonds, making it easy to tear when the sanitary paper roll packaging is picked up with one hand. 3 Higher rigidity results in poorer packaging processability.

[0029] As further specific examples of this embodiment, the winding length and winding density for the first specific example, in which the number of plies of the sanitary paper roll 2 is 1 ply, and the second specific example, in which the number of plies is 2, are described below.

[0030] As a first specific example where the sanitary paper roll 2 is 1-ply (single-ply), the winding length of the sanitary paper roll 2 is 50m or more and 150m or less, and the winding density of the sanitary paper roll 2 is 0.65m / cm². 2 More than 1.30m / cm 2 The following may also be used: The winding length is preferably 60m to 140m, and more preferably 70m to 130m. The winding density is preferably 0.80m / cm². 2 More than 1.25m / cm 2 The following, and more preferably 1.00 m / cm 2 More than 1.20m / cm 2 The following applies:

[0031] The winding density is calculated using the following formula by multiplying the winding length by the number of plies and dividing the result by the roll cross-sectional area, excluding the cross-sectional area of ​​the paper core. Winding density (m / cm 2 ) = Roll length (m) × Number of plies / Roll cross-sectional area (cm 2 ) Here, the roll cross-sectional area is given by S = πr, where r (mm) is the radius of the sanitary paper roll 2 and rc (mm) is the radius of the paper tube. 2 -πrc 2 It is represented as follows.

[0032] This configuration reduces the frequency of replacing the sanitary paper roll 2, and the packaging bag 10 of the sanitary paper roll packaging 1 has a moderate weight when carried by pinching both sides with one hand, thus reducing the possibility of the packaging bag 10 tearing. Furthermore, this configuration makes the sanitary paper roll 2 less likely to be crushed by the pressing during bonding in the packaging process, and the sanitary paper roll 2 is more resistant to deformation, so when carrying the packaging bag 10 of the sanitary paper roll packaging 1 by pinching both sides with one hand, the pressure is distributed and less likely to concentrate on one point of the packaging bag 10, making the packaging bag 10 less likely to tear. On the other hand, if the roll length is less than 50m, the frequency of replacing the sanitary paper roll increases. If the roll length exceeds 150m, the mass of the sanitary paper roll increases, making the sanitary paper roll packaging heavier, and the packaging bag is more likely to tear when the sanitary paper roll packaging is pinched both sides with one hand. The winding density of the sanitary paper roll is 0.65m / cm². 2 If the roll is smaller, the sanitary paper roll is more likely to be crushed by the pressure applied during the bonding process in the packaging, resulting in a winding density of 1.30 m / cm². 2 If the size is larger, the sanitary paper roll is less likely to deform, and when the sanitary paper roll packaging is grasped with one hand, the pressure is concentrated on one point of the packaging bag, making the packaging bag more prone to tearing.

[0033] As a second specific example where the sanitary paper roll 2 is 2-ply, the winding length of the sanitary paper roll 2 is 25m or more and 75m or less, and the winding density of the sanitary paper roll 2 is 0.65m / cm². 2 More than 1.30m / cm 2 The following may also be used: The winding length is preferably 30m to 70m, and more preferably 35m to 65m. The winding density is preferably 0.80m / cm². 2 More than 1.25m / cm 2 The following, and more preferably 1.00 m / cm 2 More than 1.20m / cm 2 The following applies:

[0034] This configuration reduces the frequency of replacing the sanitary paper roll 2, and the weight of the packaging bag 10 of the sanitary paper roll packaging 1 becomes appropriate when held with one hand from both sides, thus reducing the possibility of the packaging bag 10 tearing. Furthermore, this configuration makes the sanitary paper roll 2 less likely to be crushed by the pressing during bonding in the packaging process, and the sanitary paper roll 2 is more resistant to deformation, so when holding the packaging bag 10 of the sanitary paper roll packaging 1 with one hand, the pressure is distributed and less likely to concentrate on one point of the packaging bag 10, making the packaging bag 10 less likely to tear. On the other hand, if the roll length is less than 25m, the frequency of replacing the sanitary paper roll 2 increases, and if the roll length exceeds 75m, the mass of the sanitary paper roll 2 increases, making the sanitary paper roll packaging 1 heavier, so the packaging bag 10 is more likely to tear when the sanitary paper roll packaging 1 is held with one hand from both sides. The winding density of the sanitary paper roll 2 is 0.65m / cm². 2 If the roll is smaller, the sanitary paper roll 2 is more likely to be crushed by the pressure applied during the bonding process in the packaging, resulting in a winding density of 1.30 m / cm². 2 If the size is larger, the sanitary paper roll 2 will not deform easily, and when the sanitary paper roll packaging 1 is grasped with one hand, the pressure will be concentrated on one point of the packaging bag 10, making the packaging bag 10 more prone to tearing.

[0035] Conventionally, toilet paper, kitchen paper, and other sanitary paper rolls are generally packaged in sets of multiple rolls in a plastic film to maintain hygiene by preventing dust and dirt from adhering to them. For example, Patent Document 1 describes a packaging body in which sanitary paper rolls are packaged in two rows with a plastic film, and the packaging body is designed so that the opening line formed on the packaging bag does not break when the gripping area between the sanitary paper rolls, which is created when the rolls are packaged in two rows, is grasped.

[0036] Incidentally, in recent years, the problem of plastic waste has become increasingly serious worldwide, and there is a demand to replace plastic packaging materials with other materials in order to improve the global environment. The packaging bag described in Patent Document 1 is also made of plastic, and there is still room for improvement in the selection of materials for packaging bags that wrap multiple rolls of sanitary paper.

[0037] Furthermore, the dimensions of the packaging bags used to wrap multiple rolls of sanitary paper must be appropriately designed from the perspective of preventing tearing of the packaging bags during the packaging process, transportation, product display, and actual use, as well as maintaining the aesthetic appearance of the packaging.

[0038] Furthermore, given that paper has different elasticity properties than plastic film, it is necessary to independently adjust the degree of slack in the packaging paper and the winding density of the sanitary paper roll in order to achieve both the suppression of tearing of the packaging material and the aesthetic appearance of the packaging.

[0039] According to the present invention, by using paper material for the packaging bag 10 that packages multiple rolls of sanitary paper 2, an environmentally friendly sanitary paper roll packaging 1 can be realized. Furthermore, since the degree of slack in the packaging bag 10 is optimized, it is possible to suppress tearing of the packaging bag 10 and achieve both the aesthetic appeal of the sanitary paper roll packaging 1 and the aesthetic appeal of the packaging bag 1.

[0040] <Comparative evaluation of physical properties> In the packaging of 1-ply sanitary paper rolls according to each of the embodiments and specific examples of the present invention described above, and in the packaging of 2-ply sanitary paper rolls according to each of the embodiments from Example 1 to Example 16, and in the packaging of 2-ply sanitary paper rolls according to each of the embodiments from Example 19 to Example 32, 20 parameters related to the physical properties of the packaging, packaging paper, and sanitary paper roll were compared and evaluated against Comparative Examples 1-4 for 1-ply and Comparative Examples 5-8 for 2-ply. The results of this comparative evaluation are shown in Tables 1 and 2 below.

[0041] [Table 1] JPEG2026110870000002.jpg244142

[0042] [Table 2] JPEG2026110870000003.jpg244141

[0043] The parameters for the sanitary paper rolls and packaging paper were determined as follows. Measurements were taken after opening the sanitary paper roll packaging and conditioned the sanitary paper rolls and packaging paper for 48 hours under conditions conforming to Japanese Industrial Standard JIS P8111 (temperature 23±1℃, humidity 50±2%RH), and then performed under conditions conforming to JIS P8111. Basis weight was measured per sheet of packaging paper or sanitary paper according to JIS P8124. Paper thickness was measured per sheet of packaging paper according to ISO 534. Density was calculated from the above basis weight and paper thickness. For these measurements, the packaging paper from 10 sanitary paper roll packagings and one sanitary paper roll (one from each of the 10 packagings) were measured, and the measurement results were averaged.

[0044] For winding length, the length of the paper wound onto the paper tube from the end to the beginning was measured while unwinding the paper from the manufactured roll. Measurements were taken in 0.5m increments, and fractions were rounded down. Ten rolls were measured, one from each of ten sanitary paper roll packages, and the measurement results were averaged.

[0045] For the roll diameter, the outer diameter of the manufactured sanitary paper rolls was measured using calipers and rounded to the nearest whole number. Ten rolls were taken, one from each of ten sanitary paper roll packaging units, and the measurement results were averaged. The obtained roll diameter was divided by two to obtain the radius r of the sanitary paper roll, and the theoretical circumference L was calculated using the following formula. Theoretical perimeter L=2πr+4×(nX-1)r+4×(nY-1)r nX: Number of parallel sanitary paper rolls in the width direction nY: Number of sanitary paper rolls parallel in the length direction

[0046] For the core outer diameter, the outer diameter of the paper tube of the manufactured sanitary paper roll was measured using calipers and rounded to the nearest whole number. This measurement was performed on 10 rolls, one from each of 10 sanitary paper roll packages, and the measurement results were averaged.

[0047] Regarding the winding density, for a total of 10 rolls, one roll was taken from each of the 10 sanitary paper roll packaging units. As described above, the value obtained by multiplying the winding length by the number of plies and dividing it by the roll cross-sectional area excluding the cross-sectional area of ​​the paper core was used to calculate the winding density for each individual sanitary paper roll, and the measurement results for the 10 sanitary paper rolls were averaged. Winding density (m / cm 2 ) = Roll length (m) × Number of plies / Roll cross-sectional area (cm 2 )

[0048] The roll weight was measured using an electronic balance. Ten rolls were sampled, one from each of ten sanitary paper roll packages, and the results were averaged.

[0049] <Width of wrapping paper Y> After removing the adhesive from the top and bottom of the packaging (the top and bottom surfaces of packaging 1 in Figure 1), the packaging paper was cut parallel to the roll axis of the sanitary paper roll (reference numeral 2A in Figure 2) (along the cutting line CL in Figure 1) and unfolded. The width Y (see Figure 4) was then measured using a ruler. This measurement was performed on the packaging paper of 10 sanitary paper roll packaging units, and the measurement results were averaged.

[0050] From the descriptions in Tables 1 and 2, it can be seen that the Y / L ratio is between 95.0% and 105.0% in Examples 1-32 of the present invention, while it deviates from this range in Comparative Examples 1-8.

[0051] <Sensory evaluation> The study was conducted with 30 participants. The results were evaluated on a 5-point scale, with higher scores indicating better performance (5 (Excellent) → 1 (Poor)).

[0052] <Differences between the example and comparative example with the same number of columns and rows> <1 ply> In Comparative Example 1, the length Y of the packaging paper is shorter relative to the theoretical circumference L, and the Y / L ratio is smaller compared to Examples 1-11. Therefore, it can be understood that the packaging is tighter in Comparative Example 1 compared to Examples 1-11.

[0053] In Comparative Example 2, the length Y of the packaging paper is longer relative to the theoretical circumference L, and the Y / L ratio is larger compared to Examples 1-11. Therefore, it can be understood that the packaging in Comparative Example 2 is looser compared to Examples 1-11.

[0054] In Comparative Example 3, compared to Examples 1-11, the length Y of the wrapping paper is shorter relative to the theoretical circumference L, resulting in a smaller Y / L ratio and lower winding density. Therefore, it can be understood that in Comparative Example 3, the roll is wound more tightly than in Examples 1-11, making the roll more prone to crushing.

[0055] In Comparative Example 4, compared to Examples 1-11, the length Y of the wrapping paper is longer relative to the theoretical circumference L, resulting in a larger Y / L ratio and lower winding density. Therefore, it is understood that in Comparative Example 4, the lower winding density and looser winding of the roll result in inferior aesthetic performance compared to Examples 1-11.

[0056] <2-ply> In Comparative Example 5, the length Y of the packaging paper is shorter relative to the theoretical circumference L, and the Y / L ratio is smaller compared to Examples 17-27. Therefore, it can be understood that the packaging is tighter in Comparative Example 5 compared to Examples 17-27.

[0057] In Comparative Example 6, the length Y of the packaging paper is longer relative to the theoretical circumference L, and the Y / L ratio is larger compared to Examples 17-27. Therefore, it can be understood that the packaging in Comparative Example 6 is looser compared to Examples 17-27.

[0058] In Comparative Example 7, compared to Examples 17-27, the length Y of the wrapping paper is shorter relative to the theoretical circumference L, resulting in a smaller Y / L ratio and lower winding density. Therefore, it can be understood that in Comparative Example 7, the roll is wound more tightly than in Examples 17-27, making the roll more prone to crushing.

[0059] In Comparative Example 8, compared to Examples 17-27, the length Y of the wrapping paper is longer relative to the theoretical circumference L, resulting in a larger Y / L ratio and lower winding density. Therefore, it is understood that in Comparative Example 8, the lower winding density and looser winding of the roll result in inferior aesthetic performance compared to Examples 17-27. [Explanation of Symbols]

[0060] 1. Sanitary paper roll packaging 10 packaging bags 10B Packaging paper unfolded without cutting 10C Cut and unfolded wrapping paper CL cutting line FL folding wire 11. Overlap 2. Sanitary paper rolls 20 Paper section 21 Paper tube 2A Roll axis

Claims

1. A sanitary paper roll packaging body in which multiple rolls of sanitary paper are wrapped in paper material, The length Y between the ends of the paper material unfolded by cutting the packaging portion of the body of the sanitary paper roll packaging parallel to the axis of the sanitary paper roll is 95.0% or more and 105.0% or less of the theoretical circumference L of the plurality of sanitary paper rolls arranged in parallel in the sanitary paper roll packaging, and the winding density of the sanitary paper roll is 0.65 m / cm². 2 1.30m / cm or more 2 A sanitary paper roll packaging body characterized by the following:

2. The sanitary paper roll packaging according to claim 1, characterized in that the sanitary paper roll is one-ply and the length of the sanitary paper roll is 50 m or more and 150 m or less.

3. The sanitary paper roll packaging according to claim 1, characterized in that the sanitary paper roll is two-ply and the length of the sanitary paper roll is 25 m or more and 75 m or less.

4. The basis weight of the paper material in the aforementioned sanitary paper roll packaging is 40.0 g / m². 2 80.0g / m or more 2 The following applies, and the density of the paper material is 0.60 g / cm³. 3 0.90g / cm or more 3 A sanitary paper roll packaging according to any one of claims 1 to 3, characterized in that it is as follows:

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