Packaging

The synthetic resin packaging body with horizontal break lines between absorbent cores in different tiers addresses the issue of unintentional opening, enabling easy removal and efficient storage of absorbent articles.

JP7791835B2Active Publication Date: 2025-12-24UNI CHARM CORP
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Patent Information

Application Number
JP2022563037
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-11-19
Filing Date
2022-04-25
Publication Date
2025-12-24
Estimated Expiration
2042-04-25

AI Technical Summary

Technical Problem

Existing absorbent article packages are prone to unintentional opening, especially when containing large quantities, making it difficult to remove the articles easily and efficiently.

Method used

A synthetic resin packaging body with horizontal break lines extending across multiple surfaces, positioned between absorbent cores in different tiers, allowing the package to be divided into upper and lower sections for easy removal while minimizing unintentional opening.

Benefits of technology

The package design prevents unintentional opening by distributing tension away from the break lines, facilitating easy access to absorbent articles and optimizing storage space utilization.

✦ Generated by Eureka AI based on patent content.

Smart Images

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Abstract

An aspect provides a synthetic resin package for accommodating a plurality of absorbent articles each of which has an absorbent core and which are stacked at least vertically in two stages. The package comprises a bottom surface part, a top surface part, and a peripheral surface part disposed between the bottom surface part and the top surface part and including a front surface part, a rear surface part, and a pair of lateral surface parts. The peripheral surface part has a horizontal break line extending substantially parallel to the bottom surface part. The horizontal break line continuously extends across at least three surfaces of the front surface part, the rear surface part, and the pair of lateral surface parts, and is formed at a position between the absorbent cores of several of the plurality of absorbent articles arranged in the lower stage and the absorbent cores of several of the plurality of absorbent articles arranged in the upper stage in the vertical direction.
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Description

[Technical Field]

[0001] The present disclosure relates to packaging for absorbent articles. [Background technology]

[0002] Generally, absorbent articles such as disposable diapers are distributed and sold in a packaged state. This type of package may have a tear line, such as a perforation, formed therein, which serves as a starting point for opening the package. For example, Patent Document 1 describes a substantially rectangular parallelepiped package made of synthetic resin such as polyester, which packages a plurality of diapers. The front of this package has a cutting section formed thereon, which includes a perforation extending linearly in the vertical direction. The package is opened along this cutting section, allowing the diapers contained in the package to be removed.

[0003] The package described in Patent Document 1 has a long, narrow opening extending in the vertical direction when opened, making it difficult for the user to see inside and remove the diapers. A known example of a package that makes it easy to remove diapers is the package described in Patent Document 2. Patent Document 2 describes a paper package having a bottom, a top, and a peripheral surface, in which a plurality of diapers are stored stacked in at least two tiers. Perforations for opening the package are formed in the front and pair of side surfaces of the package at locations corresponding to the boundaries between the diapers in the two tiers.

[0004] In this package, by cutting open the front and two side sections of the package along the perforations, the peripheral surface of the package is separated into an upper section that accommodates the upper diapers and a lower section that accommodates the lower diapers. Then, by inverting the upper section of the package around a hinge formed on the rear surface, the multiple diapers arranged in the upper and lower sections are exposed to the outside in an aligned state. By opening the package so that the upper and lower sections are separated, all of the diapers contained therein are exposed, making it easy to remove multiple diapers at once and to determine the number of diapers remaining. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Publication No. 2020-196481 [Patent Document 2] Patent Publication No. 2021-004051 Summary of the Invention [Problem to be solved by the invention]

[0006] In the package described in Patent Document 2, when the top of the package is grasped and the package is lifted, a load is concentrated on the perforations formed on the periphery, and the package may be unintentionally opened starting from the perforations. In particular, when the package is used as a large-capacity package that contains many absorbent articles, there is a risk that the upper and lower parts may be unintentionally separated.

[0007] Therefore, an object of the present disclosure is to provide a package that prevents unintentional opening and allows absorbent articles to be easily removed. [Means for solving the problem]

[0008] In one aspect, there is provided a synthetic resin packaging body for storing a plurality of absorbent articles, each having an absorbent core, stacked in at least two tiers. The packaging body includes a bottom surface, a top surface, and a peripheral surface disposed between the bottom surface and the top surface and including a front surface, a back surface, and a pair of side surfaces. The peripheral surface has horizontal break lines extending substantially parallel to the bottom surface, the horizontal break lines extending continuously on at least three surfaces of the front surface, the back surface, and the pair of side surfaces, and is formed at a position between the absorbent cores of some of the absorbent articles disposed in the lower tier of the plurality of absorbent articles and the absorbent cores of some of the absorbent articles disposed in the upper tier of the plurality of absorbent articles.

[0009] In the packaging according to the above aspect, a break line extending continuously along at least three of the front, back, and side surfaces is formed on the peripheral surface. By cutting open the peripheral surface along the break line, the packaging can be separated into an upper section that accommodates the upper absorbent article and a lower section that accommodates the lower absorbent article. This allows the absorbent articles to be easily removed from the packaging. Furthermore, since multiple absorbent articles stacked in two layers tend to expand inside the packaging, a force (surface pressure) acts on the peripheral surface of the packaging, pushing them outward. In particular, a large surface pressure acts on the peripheral surface of the packaging where a highly rigid absorbent core is located. Because the packaging according to this aspect is made of a synthetic resin with a lower bending resistance than paper, the portion of the packaging where the surface pressure acts deforms by bulging outward, increasing tension. On the other hand, at a position between the absorbent cores of some of the absorbent articles arranged in the lower tier among the plurality of absorbent articles and the absorbent cores of some of the absorbent articles arranged in the upper tier among the plurality of absorbent articles, the surface pressure acting thereon is smaller due to the absence of the absorbent cores, and the tension of the peripheral surface at that position is relatively small. In the package according to this aspect, since no absorbent cores are arranged in the vertical direction and the horizontal fracture line is formed at a position where the tension is relatively low, the horizontal fracture line is less likely to be torn open when a load is applied to the package. Therefore, this package can prevent the package from being unintentionally opened.

[0010] In one aspect, the horizontal break line may be formed continuously around the entire circumference of the peripheral portion. By forming the horizontal break line continuously around the entire circumference of the peripheral portion, when the package is cut open along the horizontal break line, the package is divided into an upper part that accommodates the upper absorbent article and a lower part that accommodates the lower absorbent article. Large-capacity packages can be large in size, making it difficult to secure storage space, but by dividing the package into upper and lower parts and reducing the size, storage space can be used effectively. Furthermore, storing a large-capacity package in a living space such as a living room where diapers are usually changed can be a nuisance, but by dividing the package into upper and lower parts, it can be easier to store in the living space.

[0011] In one aspect, the horizontal break line may not be formed on the front portion, but may be formed continuously on the back portion and the pair of side portions. A picture of a person is often printed on the front of a package. Therefore, if a break line is formed on the front portion, the picture of the person will be cut when the package is opened, which may cause psychological resistance to the user. In this aspect, the break line is not formed on the front portion, but is formed continuously on the back portion and the pair of side portions, which prevents psychological resistance to the user when opening the package.

[0012] In one aspect, the peripheral portion includes a lower portion surrounding the absorbent cores of several absorbent articles arranged in a lower tier, an upper portion surrounding the absorbent cores of several absorbent articles arranged in an upper tier, and a middle portion located between the lower and upper portions, the lower and upper portions being regions that receive a surface pressure of 12 N or more from the multiple absorbent articles, the middle portion being a region that receives a surface pressure of less than 12 N from the multiple absorbent articles, and the horizontal break line may be formed in the middle portion. By forming the horizontal break line in the middle portion where a small surface pressure acts, it is possible to prevent the package from being unintentionally opened.

[0013] In one aspect, the horizontal break line may be formed in the up-down direction along a boundary between some of the absorbent articles arranged in the lower tier and some of the absorbent articles arranged in the upper tier. At a position corresponding to the boundary between some of the absorbent articles arranged in the lower tier and some of the absorbent articles arranged in the upper tier, tension is not easily applied to the peripheral surface of the package, and sagging is likely to occur. Therefore, by forming the horizontal break line in the package along the boundary, the package is less likely to be opened unintentionally.

[0014] In one embodiment, the peripheral portion may have a thickness of 40 μm or more and 80 μm or less. By making the peripheral portion 40 μm thick, the strength of the package can be ensured. Furthermore, by making the peripheral portion 80 μm or less thick, the package can be flexibly deformed, and loads are less likely to be concentrated on the horizontal break lines formed on the peripheral portion.

[0015] In one embodiment, the peripheral surface portion may have a bending resistance of 100 mm or less. The peripheral surface portion may have a bending resistance of 40 mm to 70 mm. By setting the bending resistance of the peripheral surface portion to 100 mm or less, or 40 mm to 70 mm, when the top surface of the package is grasped and the package is lifted, the package flexibly deforms, and load is less likely to be concentrated on the horizontal fracture line formed on the peripheral surface portion.

[0016] In one embodiment, the total weight of the package including the plurality of absorbent articles may be 800 g or more and 3500 g or less. By making the total weight of the package including the plurality of absorbent articles 800 g or more and 3500 g or less, the package is less likely to be opened unintentionally when transporting the package.

[0017] In one aspect, the pair of side surfaces may have upright portions formed by two overlapping synthetic resin sheets fused to each other, and the upright portions may extend in the vertical direction between the bottom surface and the top surface. The upright portions formed by two overlapping synthetic resin sheets have higher rigidity than a portion made of only one synthetic resin sheet, so by forming the upright portions on the pair of side surfaces, the package is less likely to be crushed in the vertical direction. This makes it easier to maintain the shape of the package and facilitates removal of the absorbent article.

[0018] In one aspect, an upper break line extending linearly in the vertical direction may be further formed at a position closer to the top surface portion than the horizontal break line of the peripheral surface portion. By opening the package along the upper break line, the absorbent article arranged at the upper level can be removed from the package.

[0019] In one aspect, the horizontal break line includes a difficult-to-break portion and an easy-to-break portion that is more easily broken than the difficult-to-break portion, and the peripheral portion may further include a connecting break line that extends in a curved shape between an end of the easy-to-break portion of the horizontal break line and an end of the upper break line on the bottom surface side. In this aspect, the easy-to-break portion of the horizontal break line and the upper break line are connected by the connecting break line, so that the horizontal break line, the connecting break line, and the upper break line can be cut continuously.

[0020] In one embodiment, the horizontal break line, the upper break line, and the connecting break line are perforations, and the length between the slits of the difficult-to-break portion of the horizontal break line may be shorter than the length between the slits of the upper break line. By making the length between the slits of the difficult-to-break portion shorter than the length between the slits of the upper break line, the package can be easily opened along the horizontal break line.

[0021] In one embodiment, the length between the breaks in the easy-to-break portion of the horizontal break line and the connecting break line may be shorter than the length between the breaks in the hard-to-break portion of the horizontal break line. In this embodiment, since the easy-to-break portion of the horizontal break line and the connecting break line are easily broken, by cutting the easy-to-break portion of the horizontal break line while applying force to the top surface side, it is possible to continuously cut the upper break line via the connecting break line.

[0022] In one embodiment, a lower break line extending linearly in the vertical direction may be further formed at a position closer to the bottom surface than the horizontal break line of the peripheral surface. By opening the package along the lower break line, the absorbent article placed at the lower level can be easily removed.

[0023] In one embodiment, the fiber direction of the peripheral portion may be oriented in the vertical direction. When the fiber direction of the peripheral portion is oriented in the vertical direction, the package is easily torn in the vertical direction and is difficult to tear in the width direction. In other words, the peripheral portion is difficult to tear along the horizontal tear line, which can prevent the package from being unintentionally opened.

[0024] In one embodiment, a first decorative element and a second decorative element are printed on the front surface, with the first decorative element being positioned closer to the top surface than a horizontal break line on the front surface, and the second decorative element being positioned closer to the bottom surface than the horizontal break line on the front surface. The first decorative element may be a brand logo, and the second decorative element may be an illustration of a character. By printing the first decorative element and the second decorative element closer to the top surface than the horizontal break line on the front surface and closer to the bottom surface than the horizontal break line on the front surface, respectively, when the package is divided along the horizontal break line, the product can be identified from the decorative elements printed on the top and bottom of the divided package.

[0025] In one aspect, an opening guide mark indicating the position of the horizontal break line and the opening direction is printed on the back part, and an opening guide mark may not be printed on the front part. According to this aspect, the position of the horizontal break line and the opening direction can be recognized by the user without spoiling the aesthetic appearance.

[0026] In one embodiment, a third decorative element and a fourth decorative element are printed on at least one of the pair of side surfaces, the third decorative element being positioned closer to the top surface than the horizontal break line of the one side surface, and the fourth decorative element being positioned closer to the bottom surface than the horizontal break line of the one side surface, and the third decorative element being drawn upside down relative to the fourth decorative element. By printing the third decorative element upside down, both the third decorative element and the fourth decorative element can be placed facing upward when the package is separated into upper and lower halves for storage. Note that the top surface does not necessarily have an opening for use as a handle for the package.

[0027] In one aspect, a synthetic resin packaging body for storing a plurality of absorbent articles stacked in at least two tiers is provided. The packaging body includes a bottom surface, a top surface, and a peripheral surface disposed between the bottom surface and the top surface and including a front surface, a back surface, and a pair of side surfaces. The peripheral surface includes a lower portion surrounding some of the plurality of absorbent articles disposed in the lower tier, an upper portion surrounding some of the plurality of absorbent articles disposed in the upper tier, and a middle portion located between the lower and upper portions, and a horizontal break line is formed in the middle portion of the peripheral surface that extends continuously to at least three of the front surface, the back surface, and the pair of side surfaces.

[0028] In the package according to the above aspect, a horizontal break line extending continuously along at least three of the front, back, and side surfaces is formed on the peripheral surface. Therefore, by cutting open the peripheral surface along the horizontal break line, the package can be divided into an upper section that accommodates the upper absorbent article and a lower section that accommodates the lower absorbent article. This makes it easy to remove the absorbent articles from the package. Furthermore, although multiple absorbent articles stacked in two layers tend to spread out inside the package, the horizontal break line is formed in the middle, where tension is less likely to be applied, making it difficult for the horizontal break line to be cut open when a load is applied to the package. Therefore, this package can prevent the package from being unintentionally opened.

[0029] In one embodiment, the lower and upper portions may be regions that receive a surface pressure of 12 N or more from a plurality of absorbent articles, and the middle portion may be a region that receives a surface pressure of less than 12 N from a plurality of absorbent articles. Since the middle portion receives a small surface pressure from the plurality of absorbent articles, the formation of a horizontal break line in the middle portion can prevent the package from being unintentionally opened. The horizontal break line may be formed continuously around the entire periphery of the peripheral portion. [Effects of the Invention]

[0030] Various aspects of the present invention provide a package that allows easy removal of absorbent articles while preventing unintentional opening. [Brief explanation of the drawings]

[0031] [Figure 1] 1 is a perspective view schematically illustrating a packaging body according to one embodiment. [Figure 2] FIG. 2 is a front view of the packaging body shown in FIG. [Figure 3] FIG. 2 is a rear view of the packaging body shown in FIG. [Figure 4] FIG. 2 is a left side view of the packaging body shown in FIG. [Figure 5] FIG. 2 is a right side view of the packaging body shown in FIG. [Figure 6] FIG. 1 is a plan view showing an example of an absorbent article. [Figure 7] FIG. 2 is a development view schematically showing the packaging body. [Figure 8] FIG. 1 is a perspective view showing the package opened along the horizontal break line. [Figure 9] FIG. 10 is a perspective view showing the package opened along the top break line. [Figure 10] FIG. 10 is a perspective view showing the package opened along the bottom break line. [Figure 11] FIG. 10 is a development view schematically showing a modified example of the packaging body. [Figure 12] FIG. 1 is a perspective view showing the package opened along the horizontal break line. [Figure 13] FIG. 10 is a front view of a package according to another embodiment. [Figure 14] FIG. 14 is a rear view of the packaging body shown in FIG. [Figure 15] FIG. 14 is a left side view of the packaging body shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0032] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In the following description, the same or equivalent elements will be denoted by the same reference numerals, and redundant explanations will not be repeated. The drawings may be partially simplified or exaggerated for ease of understanding, and the dimensional proportions are not limited to those shown in the drawings.

[0033] A packaging body according to one embodiment will now be described. FIG. 1 is a perspective view of a packaging body 1 according to one embodiment. FIG. 2 is a front view of the packaging body 1, and FIG. 3 is a rear view of the packaging body 1. FIG. 4 is a left side view of the packaging body 1, and FIG. 5 is a right side view of the packaging body 1. For ease of explanation, the drawings show a width direction X, a depth direction Y, and a vertical direction Z, which are perpendicular to one another. The width direction X is a direction intersecting or perpendicular to a left surface portion 13 and a right surface portion 14 of the packaging body 1, which will be described later, and the depth direction Y is a direction intersecting or perpendicular to a front surface portion 11 and a back surface portion 12 of the packaging body 1. The vertical direction Z is a direction perpendicular to the width direction X and the depth direction Y, and is a direction intersecting or perpendicular to a bottom surface portion 15 and a top surface portion 16.

[0034] The package 1 accommodates a plurality of absorbent articles 2. As shown in FIGS. 1 to 5, the package 1 has a substantially rectangular parallelepiped shape and includes a front surface 11, a back surface 12, a left surface (side surface) 13, a right surface (side surface) 14, a bottom surface 15, and a top surface 16. The front surface 11, the back surface 12, the left surface 13, and the right surface 14 form a peripheral surface 10 disposed between the bottom surface 15 and the top surface 16. The absorbent articles 2 accommodated in the package 1 are articles that absorb bodily fluids such as urine, blood, and sweat. Examples of the absorbent articles 2 include diapers, toilet training pants, incontinence pads, sanitary napkins, and pet sheets. Examples of diapers include pants-type and tape-type disposable diapers.

[0035] FIG. 6 is a plan view showing a tape-type disposable diaper, which is an example of the absorbent article 2. FIG. 6 shows the absorbent article 2 in a state where it has been stretched to a state where no wrinkles are formed. The absorbent article 2 shown in FIG. 6 is a disposable diaper for babies. The absorbent article 2 may also be a disposable diaper for adults or a disposable diaper for pets. As shown in FIG. 6, when worn, the absorbent article 2 extends in a vertical direction L connecting the wearer's ventral side to their back side and in a horizontal direction W perpendicular to the vertical direction L.

[0036] As shown in Figure 6, the absorbent article 2 includes a main body portion 100, a pair of fastening tabs 120, and a target tape portion 130. The main body portion 100 is for absorbing body waste and includes a top sheet 110, a back sheet 112, and an absorbent core 113. The top sheet 110 is disposed on the front side of the absorbent article 2 and forms the surface that comes into contact with the wearer's skin. The top sheet 110 includes a center sheet 110a located in the center in the lateral direction W, and side sheets 110b that cover both sides of the center sheet 110a in the lateral direction W.

[0037] The side sheet 110b is provided with a pair of elastic members 115, 116 extending in the longitudinal direction L. The pair of elastic members 115 are arranged on both sides of the main body portion 100 in the lateral direction W while stretched in the longitudinal direction L. When the pair of elastic members 115 contract in the longitudinal direction L, the side edges of the main body portion 100 in the lateral direction W come into close contact with the wearer's legs, improving the fit of the absorbent article 2. The pair of elastic members 116 are provided inward of the pair of elastic members 115 in the lateral direction W. The pair of elastic members 116 are connected to the side sheet 110b of the main body portion 100 while stretched in the longitudinal direction L. When the absorbent article 2 is worn, the pair of elastic members 116 contract in the longitudinal direction L, causing a portion of the side sheet 110b to rise toward the wearer, thereby forming a pair of leakage-proof cuffs.

[0038] The pair of fastening tabs 120 are arranged near the ventral edge of the main body portion 100 in the longitudinal direction L, and extend outward in the lateral direction W. Each of the pair of fastening tabs 120 includes a joining portion 122 made of a mechanical fastener or the like, and the joining portion 122 is configured to be joinable to the target tape portion 130. The target tape portion 130 is arranged on the back side of the main body portion 100, near the dorsal edge of the main body portion 100 in the longitudinal direction L. The absorbent article 2 is put on a wearer by connecting the pair of fastening tabs 120 to the target tape portion 130.

[0039] The absorbent core 113 is disposed between the top sheet 110 and the back sheet 112. The absorbent core 113 contains, for example, pulverized pulp and a polymeric absorbent (SAP), and absorbs the wearer's urine. The surface of the absorbent core 113 may be covered with a core wrap. The absorbent core 113 is disposed at the center of the main body portion 100 in the lateral direction W. The absorbent core 113 has a vertically elongated shape with the longitudinal direction L as the lengthwise direction and the lateral direction W as the short side direction.

[0040] As shown in Figures 2 to 5, a plurality of absorbent articles 2 are stored in a folded state inside the packaging body 1. For example, the absorbent articles 2 are stored in the packaging body 1 with the side sheets 110b folded inward in the horizontal direction W, and then folded in half in the vertical direction L. The plurality of absorbent articles 2 folded in this manner are stacked in at least two tiers, one above the other, inside the packaging body 1. The absorbent article 2a arranged in the upper tier of the plurality of absorbent articles 2 is placed on top of the absorbent article 2b arranged in the lower tier of the plurality of absorbent articles 2. The absorbent article 2a in the upper tier and the absorbent article 2b in the lower tier are stacked in the width direction X and stored in the packaging body 1 in a compressed state.

[0041] As described above, the packaging body 1 has a substantially rectangular parallelepiped shape and stores a plurality of absorbent articles 2 inside. For example, the packaging body 1 is a large-capacity packaging body with a total weight including the plurality of absorbent articles 2 of 800 g or more and 3500 g or less. The peripheral portion 10, front portion 11, and back portion 12 of the packaging body 1 are made of a synthetic resin such as polyethylene, polypropylene, or polyethylene terephthalate, and have a thickness of, for example, 40 μm or more and 80 μm or less. The thickness of the packaging body 1 is obtained, for example, by cutting out a plurality of sample sides from the packaging body 1, measuring the thicknesses of the plurality of sample pieces using electron micrographs, and calculating the average value of the measured values.

[0042] In one embodiment, the packaging body 1 may be made of a sheet material having a bending resistance of 100 mm or less when measured in accordance with Method A (45° cantilever method) of JIS L1096:2010. The bending resistance of the packaging body 1 may be 40 mm or more and 70 mm or less. By being stretched during production, the fiber direction of the peripheral surface portion 10 of the packaging body 1 is oriented in the vertical direction Z.

[0043] Since the packaging body 1 is made of a material that is easily deformed, the packaging body 1 may not strictly have a rectangular parallelepiped shape when multiple absorbent articles 2 are stored inside the packaging body 1. For example, a force that pushes outward from the multiple absorbent articles 2 acts on the front surface 11, back surface 12, left surface 13, and right surface 14, and some or all of the surfaces of the packaging body 1 may be curved or uneven.

[0044] The front surface 11 and the back surface 12 of the packaging body 1 face each other in the depth direction Y of the packaging body 1, and the left surface 13 and the right surface 14 face each other in the width direction X of the packaging body 1. The bottom surface 15 is connected to the lower ends of the front surface 11, the back surface 12, the left surface 13, and the right surface 14, and closes the bottom of the packaging body 1. The top surface 16 is connected to the upper ends of the front surface 11, the back surface 12, the left surface 13, and the right surface 14, and closes the top of the packaging body 1.

[0045] As shown in FIG. 2 , the peripheral surface portion 10 of the package 1 includes an upper portion 3, a lower portion 4, and a middle portion 5. The upper portion 3 is a portion that laterally surrounds the absorbent core 113 of the absorbent article 2a arranged in the upper tier, and the lower portion 4 is a portion that laterally surrounds the absorbent core 113 of the absorbent article 2b arranged in the lower tier. The middle portion 5 is located between the upper portion 3 and the lower portion 4. Because multiple absorbent articles 2 are stored in a compressed state inside the package 1, the multiple absorbent articles 2 stacked in two tiers tend to spread in the width direction X inside the package 1. Therefore, a force (surface pressure) that spreads them in the X direction acts on the peripheral surface portion 10 of the package 1. In particular, a large surface pressure acts from the inside to the outside of the package 1 on the upper portion 3 and the lower portion 4 of the package 1, which store highly rigid absorbent cores 113. For example, a surface pressure of 12 N or more acts on the upper portion 3 and the lower portion 4 of the package 1 from the multiple absorbent articles 2. On the other hand, surface pressure is less likely to act on the intermediate portion 5 where the absorbent cores 113 of the plurality of absorbent articles 2 are not arranged. For example, the surface pressure that the intermediate portion 5 receives from the plurality of absorbent articles 2 is less than 12N.

[0046] The surface pressure is the pressure per unit area that the peripheral surface 10 receives from the multiple absorbent articles 2, and is measured using, for example, a digital force gauge. For example, a SHIMPO FGP-0.2 manufactured by Nidec-Shimpo Corporation is used as a digital force gauge to measure the surface pressure. This digital force gauge has a cylindrical detection unit with a diameter of 10 mm. When measuring the surface pressure of the peripheral surface 10 using this digital force gauge, the detection unit of the digital force gauge is brought into contact with the peripheral surface 10 of the package 1 containing the multiple absorbent articles 2, and the detection unit is pressed 10 mm against the peripheral surface 10 of the package 1 at a speed of 300 mm / min. The maximum value measured by the digital force gauge at this time is taken as the surface pressure received by the peripheral surface 10.

[0047] As described above, a large surface pressure acts on the upper portion 3 and the lower portion 4 of the packaging body 1, causing the upper portion 3 and the lower portion 4 to deform and bulge outward, increasing the tension (tensile force) of the upper portion 3 and the lower portion 4. On the other hand, the surface pressure acting on the middle portion 5 of the packaging body 1 is relatively small, so tension is less likely to be applied to the middle portion 5. This difference in tension causes slack in the middle portion 5.

[0048] As shown in Figs. 1 to 5, a horizontal break line 22 extending substantially parallel to the bottom surface 15 is formed on the peripheral surface 10 of the packaging body 1. The horizontal break line 22 is a portion that is more easily broken than other portions of the peripheral surface 10, and serves as a starting point for opening the packaging body 1. The horizontal break line 22 is formed in the middle portion 5 of the peripheral surface 10. In other words, the horizontal break line 22 is formed in a position in the vertical direction Z between the absorbent core 113 of the upper absorbent article 2a and the absorbent core 113 of the lower absorbent article 2b. Details of the horizontal break line 22 will be described later.

[0049] 7 is a development view of the packaging body 1 cut along the boundary line 34 between the back surface 12 and the right surface 14. As shown in FIG. 7, the front surface 11, the back surface 12, the left surface 13, the right surface 14, the bottom surface 15, and the top surface 16 of the packaging body 1 each have a rectangular shape.

[0050] 7, the bottom surface portion 15 is connected to the lower ends of the front surface portion 11, the back surface portion 12, the left surface portion 13, and the right surface portion 14. The lower portion of the bottom surface portion 15 is fused and joined at a fused portion M1. The fused portion M1 is a region extending in a direction parallel to the boundary line between the peripheral surface portion 10 and the bottom surface portion 15.

[0051] Top surface 16 is connected to the upper ends of front surface 11, back surface 12, left surface 13, and right surface 14. The upper portion of top surface 16 is fused and joined along fused portions M2 and M3. Fused portions M2 and M3 extend in width direction X when viewed from depth direction Y, and fused portion M3 is formed closer to bottom surface 15 than fused portion M2.

[0052] A handle 19 that serves as a handle for the package 1 is formed between the fused portions M2 and M3 of the top surface 16. The handle 19 is the edge of a substantially elliptical opening formed by cutting out a portion of the top surface 16. By inserting a hand into the opening formed in the top surface 16 and grasping the handle 19, the package 1 can be lifted and carried.

[0053] A horizontal break line 22 is formed on the peripheral surface 10 of the package 1. The horizontal break line 22 extends continuously across all four surfaces, namely the front surface 11, the back surface 12, the left surface 13, and the right surface 14. The horizontal break line 22 includes a first break line 23, a second break line 24, a third break line 25, and a fourth break line 26. The first break line 23, the second break line 24, the third break line 25, and the fourth break line 26 are, for example, perforations including cut portions and non-cut portions, and extend substantially parallel to the bottom surface 15.

[0054] The first break line 23 is formed in the front surface portion 11 and extends in the width direction X. More specifically, the first break line 23 extends linearly in the width direction X so as to cross the front surface portion 11 between a boundary line 31 between the front surface portion 11 and the left surface portion 13 and a boundary line 32 between the front surface portion 11 and the right surface portion 14. The second break line 24 is formed in the left surface portion 13 and extends linearly in the depth direction Y. The second break line 24 extends linearly in the depth direction Y so as to cross the left surface portion 13 between the boundary line 31 between the front surface portion 11 and the left surface portion 13 and a boundary line 33 between the back surface portion 12 and the left surface portion 13. One end of the second break line 24 is connected to one end of the first break line 23 on the boundary line 31.

[0055] The third break line 25 is formed in the back portion 12 and extends in the width direction X. The third break line 25 extends linearly in the width direction X across the back portion 12 between a boundary line 33 between the back portion 12 and the left side portion 13 and a boundary line 34 between the back portion 12 and the right side portion 14. One end of the third break line 25 is connected to the other end of the second break line 24 on the boundary line 33. The fourth break line 26 is formed in the right side portion 14 and extends in the depth direction Y. The fourth break line 26 extends linearly in the depth direction Y across the right side portion 14 between a boundary line 32 between the front portion 11 and the right side portion 14 and a boundary line 34 between the back portion 12 and the right side portion 14. One end of the fourth break line 26 is connected to the other end of the first break line 23 on the boundary line 32, and the other end of the fourth break line 26 is connected to the other end of the third break line 25 on the boundary line 34. In other words, the horizontal break line 22 is formed continuously around the entire circumference of the peripheral surface portion 10.

[0056] Furthermore, the horizontal fracture line 22 is formed in the middle portion 5 of the peripheral surface portion 10. In other words, the horizontal fracture line 22 is formed in a position between the absorbent cores 113 of the plurality of absorbent articles 2a arranged in the upper tier and the absorbent cores 113 of the plurality of absorbent articles 2b arranged in the lower tier in the vertical direction Z. As shown in FIGS. 2 to 5 , the horizontal fracture line 22 may be formed along the boundary between the plurality of absorbent articles 2a arranged in the upper tier and the plurality of absorbent articles 2b arranged in the lower tier in the vertical direction Z. As described above, the surface pressure from the plurality of absorbent articles 2 is less likely to act on the middle portion 5 of the package 1, so tension in the middle portion 5 is small and slack is likely to occur in the middle portion 5. By forming the horizontal fracture line 22 in such a middle portion 5, the horizontal fracture line 22 is less likely to be torn open when the package 1 is transported by gripping the handle portion 19. Therefore, it is possible to prevent the package 1 from being unintentionally opened starting from the horizontal fracture line 22.

[0057] In one embodiment, the horizontal break line 22 may have different strengths depending on its position. For example, as shown in FIG. 7 , the horizontal break line 22 may include an easy-to-break portion 28 having a relatively low strength and a difficult-to-break portion 29 having a relatively high strength. If the horizontal break line 22 is a perforation, the length between the slits of the easy-to-break portion 28 (the length of the uncut portion) is formed shorter than the length between the slits of the difficult-to-break portion 29. This weakens the strength of the easy-to-break portion 28. As shown in FIG. 7 , the horizontal break line 22 includes a plurality of difficult-to-break portions 29. The plurality of difficult-to-break portions 29 are formed on the front portion 11, the back portion 12, the left portion 13, and the right portion 14 of the peripheral portion 10. The easy-to-break portion 28 is disposed between the plurality of difficult-to-break portions 29. In one embodiment, as shown in FIG. 7 , the horizontal break line 22 includes two easy-to-break portions 28, one of which extends between the front portion 11 and the left portion 13 across the boundary line 31, and the other of which extends between the back portion 12 and the left portion 13 across the boundary line 33.

[0058] Furthermore, the peripheral surface 10 of the package 1 may be formed with a plurality of upper break lines 40 and a plurality of connecting break lines 42. The plurality of upper break lines 40 and the plurality of connecting break lines 42 are, for example, perforations including cut portions and non-cut portions, and are formed closer to the top surface 16 than the horizontal break line 22. The plurality of upper break lines 40 are break lines for removing the upper absorbent article 2a from the package 1, and extend linearly in the up-down direction Z. As shown in FIG. 7 , the package 1 has four upper break lines 40. Two of the four upper break lines 40 are formed on the front surface 11 and the left surface 13, and extend parallel to each other across the boundary line 31. The other two of the plurality of upper break lines 40 are formed on the back surface 12 and the left surface 13, and extend parallel to each other across the boundary line 33.

[0059] One end of each of the multiple connecting break lines 42 is connected to the lower ends of the multiple upper break lines 40, and the other ends of each of the multiple connecting break lines 42 are connected to both ends of the easy-to-break portions 28 of the horizontal break line 22. That is, the horizontal break line 22 is connected to the multiple upper break lines 40 via the multiple connecting break lines 42. Each of the multiple connecting break lines 42 extends in a curved shape that bulges toward the difficult-to-break portion 29 of the adjacent horizontal break line 22. As described above, the difficult-to-break portion 29 of the horizontal break line 22 and the connecting break lines 42 are formed so as to bifurcate from the end of the easy-to-break portion 28. Furthermore, the easy-to-break portions 28 of the horizontal break line 22, the upper break lines 40, and the connecting break lines 42 cooperate to form a substantially U-shaped break line.

[0060] In one embodiment, the horizontal break line 22, the upper break line 40, and the connecting break line 42 may have different strengths. For example, when the horizontal break line 22, the upper break line 40, and the connecting break line 42 are perforations, the length between the slits of the connecting break line 42 is formed shorter than the length between the slits of the difficult-to-break portion 29 of the horizontal break line 22 and the upper break line 40. This makes the connecting break line 42 more likely to break than the difficult-to-break portion 29 of the horizontal break line 22 and the upper break line 40. In addition, the length between the slits of the upper break line 40 may be formed longer than the length between the slits of the easy-to-break portion 28 and the difficult-to-break portion 29 of the horizontal break line 22. For example, the ratio of the length of the cut portion to the non-cut portion of the easy-to-break portion 28 may be 2:3, the ratio of the length of the cut portion to the non-cut portion of the difficult-to-break portion 29 may be 2:4, the ratio of the length of the cut portion to the non-cut portion of the upper break line 40 may be 2:5, and the ratio of the length of the cut portion to the non-cut portion of the connecting break line 42 may be 2:3.

[0061] As described above, the fiber direction of the peripheral surface portion 10 of the packaging body 1 is oriented in the vertical direction Z, and therefore the peripheral surface portion 10 is less likely to tear in the width direction X than in the vertical direction Z. In contrast, in the packaging body 1, the length between the slits of the difficult-to-tear portions 29 of the horizontal break line 22 is shorter than the length between the slits of the upper break line 40, making it possible to easily open the packaging body 1 along the horizontal break line 22. Furthermore, in the packaging body 1, the length between the slits of the easy-to-tear portions 28 and the connecting break line 42 is shorter than the difficult-to-tear portions 29 and the upper break line 40, making it possible to easily open the packaging body 1 using the easy-to-tear portions 28 and the connecting break line 42 as starting points.

[0062] In one embodiment, the peripheral surface 10 of the package 1 may further have a plurality of lower break lines 50 formed thereon. The plurality of lower break lines 50 are, for example, perforations including cut portions and non-cut portions, and are formed closer to the bottom surface 15 than the horizontal break line 22. The plurality of lower break lines 50 are break lines for removing the plurality of absorbent articles 2b in the lower row, and extend linearly in the up-down direction Z below the plurality of upper break lines 40. The ends of the plurality of upper break lines 40 on the top surface 16 side may be connected to the horizontal break line 22 or may not be connected to the horizontal break line 22. When the lower break lines 50 are perforations, the length between the slits of the lower break lines 50 is longer than the horizontal break line 22 and the connecting break line 42. For example, the ratio of the length of the cut portion to the length of the non-cut portion of the lower break line 50 is 2:5.

[0063] The above-described packaging body 1 is manufactured by folding and welding a flat synthetic resin sheet into a substantially rectangular parallelepiped shape. For example, the packaging body 1 is manufactured by folding two synthetic resin sheets to form the front surface 11, the back surface 12, the left surface 13, the right surface 14, the bottom surface 15, and the top surface 16, and then welding the two synthetic resin sheets at the left surface 13, the right surface 14, the bottom surface 15, and the top surface 16 to manufacture the substantially rectangular parallelepiped packaging body 1. The packaging body 1 manufactured in this manner has standing portions 48 formed on the left surface 13 and the right surface 14 that make the packaging body 1 stand up (see FIGS. 4 and 5 ). The standing portions 48 are formed by overlapping and welding two synthetic resin sheets together, and extend in the vertical direction Z between the bottom surface 15 and the top surface 16. The standing portions 48 have higher rigidity than other portions of the peripheral surface 10 (portions formed by a single synthetic resin sheet). Therefore, by forming the standing portions 48 on the left surface portion 13 and the right surface portion 14, the packaging body 1 becomes less likely to be crushed in the vertical direction Z.

[0064] Next, a procedure for opening the package 1 will be described. The package 1 offers multiple opening methods. First, a method for opening the package 1 along the horizontal break line 22 will be described. When opening the package 1, the user first cuts the easily breakable portion 28 by pinching and pulling the top and bottom of the horizontal break line 22 with their fingers near the boundary line 31 or boundary line 33. At this time, since the length between the slits in the easily breakable portion 28 is short in the package 1, the easily breakable portion 28 can be cut with little force. Next, the user cuts open the easily breakable portion 28 in the width direction X and cuts the hard-to-tear portion 29 connected to the easily breakable portion 28. Then, the horizontal break line 22 is broken along the entire periphery of the peripheral portion 10. As a result, the package 1 is divided into an upper portion 3 and a lower portion 4 as shown in FIG. 8. As a result, the plurality of absorbent articles 2a, 2b are exposed through openings 52, 54 formed in the upper portion 3 and the lower portion 4 while aligned in the width direction X.

[0065] As described above, by exposing the plurality of absorbent articles 2 in a state aligned in the width direction X, it becomes easy to remove the plurality of absorbent articles 2 from the package 1, and it becomes possible to know at a glance how many of the plurality of absorbent articles 2 are remaining. Furthermore, a package 1 that contains many absorbent articles 2 can have difficulty in securing storage space due to its large size. However, by dividing the package 1 into an upper part 3 and a lower part 4, it becomes possible to effectively utilize the storage space. Furthermore, by dividing the package 1 into an upper part 3 and a lower part 4, it becomes easier to store the package 1 in a living space such as a living room where diapers are usually changed. Note that, as shown in FIG. 8 , when the package 1 is divided into the upper part 3 and the lower part 4, the upper part 3 and the lower part 4 are stored with the bottom part 15 and the top part 16 facing downward, respectively. In this case, the left part 13 and the right part 14 are formed with upright parts 48, which make the upper part 3 and the lower part 4 less likely to be crushed in the vertical direction Z, allowing the upper part 3 and the lower part 4 to stand upright. Therefore, it becomes easy to remove the absorbent articles 2 from the upper part 3 and the lower part 4.

[0066] Next, a method for opening the package 1 along the upper break line 40 will be described. The package 1 can also be opened along the upper break line 40 if the user does not want to separate the package 1 into the upper and lower parts 3 and 4. When opening the package 1 along the upper break line 40, the user first cuts the easy-to-tear portion 28 by pinching and pulling the top and bottom of the horizontal break line 22 near the boundary line 31 or the boundary line 33. Next, the user pinches the peripheral portion 10 with their fingers and pulls it toward the top surface 16 to cut the connecting break line 42. Then, as shown in FIG. 9 , the user further pulls the peripheral portion 10 toward the top surface 16 to cut the upper break line 40. Cutting the upper break line 40 forms an opening 56 in the package 1. The user can remove the upper absorbent article 2a contained in the package 1 through the opening 56 thus formed.

[0067] Next, a method for opening the package 1 along the lower break line 50 will be described. When opening the package 1 along the lower break line 50, the user first cuts the easy-to-tear portion 28 by pinching and pulling the areas above and below the horizontal break line 22 near the boundary line 31 or boundary line 33 with their fingers. Next, the user pinches the peripheral portion 10 with their fingers and pulls it down toward the bottom portion 15 to cut the lower break line 50. As shown in FIG. 10 , cutting the lower break line 50 forms an opening 58 in the package 1. The user can remove the lower absorbent article 2b contained in the package 1 through the opening 58 thus formed.

[0068] As explained above, in the above-mentioned embodiment, the horizontal break line 22 extending continuously around the entire periphery of the peripheral surface portion 10 is formed in the package 1, so that the package 1 can be divided into the upper portion 3 and the lower portion 4 by cutting open the peripheral surface portion 10 along the horizontal break line 22. This makes it possible to easily remove the absorbent articles 2 from the package 1. Furthermore, in the package 1, the horizontal break line 22 is formed in the middle portion 5 where the surface pressure from the multiple absorbent articles 2 is small. Therefore, even when the package 1 is carried by holding the handle portion 19, load is unlikely to be concentrated on the horizontal break line 22, and the horizontal break line 22 is unlikely to be cut open. Therefore, this package 1 can prevent the package 1 from being unintentionally opened.

[0069] In the packaging body 1 shown in FIG. 1 , the horizontal break line 22 is formed along the entire periphery of the peripheral surface portion 10. However, in one embodiment, the horizontal break line 22 may be formed on only three surfaces of the peripheral surface portion 10, namely the front surface portion 11, the back surface portion 12, the left surface portion 13, and the right surface portion 14. For example, as shown in FIG. 11 , the horizontal break line 22 may be formed on only three surfaces, namely the front surface portion 11, the back surface portion 12, and the left surface portion 13, and no horizontal break line 22 may be formed on the right surface portion 14. In this embodiment, too, the packaging body 1 can be separated into an upper portion 3 and a lower portion 4 by cutting open the packaging body 1 along the horizontal break lines 22 formed on the front surface portion 11, the back surface portion 12, and the left surface portion 13. Then, as shown in FIG. 12 , by inverting the upper portion 3 about the bent portion 68 of the right surface portion 14, multiple absorbent articles 2 can be exposed while aligned in the width direction X. This makes it easy to remove the plurality of absorbent articles 2 from the package 1, and also makes it possible to know at a glance how many of the plurality of absorbent articles 2 are left.

[0070] The horizontal break line 22 may not be formed on the front surface 11, but may be formed continuously on the back surface 12, left surface 13, and right surface 14. An image of a person is often printed on the front surface 11 of the packaging body 1. If the horizontal break line 22 is formed on the front surface 11, the image of the person will be cut when the packaging body 1 is opened, which may cause psychological resistance to the user. If the horizontal break line 22 is not formed on the front surface 11, but is formed on the back surface 12, left surface 13, and right surface 14, the image of the person will not be cut when the packaging body 1 is opened, which can prevent psychological resistance to the user.

[0071] Next, a packaging body according to another embodiment will be described with reference to Figures 13 to 15. Figure 13 is a front view of packaging body 1A according to another embodiment. Figure 14 is a rear view of packaging body 1A, and Figure 15 is a left side view of packaging body 1A. Below, differences from packaging body 1 shown in Figures 1 to 5 will be mainly described, and overlapping explanations will be omitted.

[0072] As will be described later, multiple decorative elements are printed on the packaging body 1A. "Decorative elements" refer to figures, pictures, letters, logos, illustrations, photographs, etc. that are printed on the packaging body 1A so that they are visible from the outside. In one embodiment, the multiple decorative elements are printed on the packaging body 1A in three or fewer hues. "Hue" refers to color tone. "Printed on the packaging body 1A in three or fewer hues" means that the elements are printed using three or fewer hues out of the ten hues represented by the Munsell color system, for example.

[0073] 13, the top surface 16 of the packaging body 1A has the upper portion of the fused portion M3 cut off. Therefore, the top surface 16 of the packaging body 1A differs from the top surface 16 of the packaging body 1 in that the top surface 16 does not have a handle portion 19 (opening) that serves as a handle for the packaging body 1A.

[0074] A first decorative element 71 and a second decorative element 72 are printed on the front surface 11 of the packaging body 1A. In the example shown in Fig. 13, the first decorative element 71 is a logo (brand logo) including the brand name of the absorbent article 2, and the second decorative element 72 is an illustration of an animal character. Note that the first decorative element 71 may also be an illustration or photograph of an infant, a product, or the like.

[0075] As shown in FIG. 13 , the first decorative element 71 is printed on the upper portion 3 of the front surface portion 11, and the second decorative element 72 is printed on the lower portion 4 of the front surface portion 11. That is, the first decorative element 71 is positioned closer to the top surface 16 than the horizontal break line 22 of the front surface portion 11, and the second decorative element 72 is positioned closer to the bottom surface 15 than the horizontal break line 22 of the front surface portion 11. As described above, the first decorative element 71 and the second decorative element 72 are positioned so as not to straddle the horizontal break line 22. Therefore, when the package 1A is divided along the horizontal break line 22, the first decorative element 71 and the second decorative element 72 are prevented from being cut. Furthermore, by printing the first decorative element 71 and the second decorative element 72 on the upper portion 3 and the lower portion 4 of the front surface portion 11, respectively, the product can be identified from the decorative elements printed on the upper portion 3 and the lower portion 4, even when the package 1A is divided into the upper portion 3 and the lower portion 4 along the horizontal break line 22.

[0076] 14, a plurality of first opening guidance marks 73 indicating the position of the horizontal breaking line 22 and the opening direction are printed on the back surface 12 of the package 1A. The first opening guidance marks 73 have the function of visually guiding how to open the package 1A. For example, the first opening guidance marks 73 have a triangular shape with one vertex facing the width direction X, and are arranged at a position overlapping the horizontal breaking line 22. Note that the shape of the first opening guidance marks 73 is not limited to a triangular shape, and may be, for example, an arrow shape, as long as it allows the user to recognize the position of the horizontal breaking line 22 and the opening direction.

[0077] 13, the first opening guidance mark 73 is not printed on the front surface 11. By printing the first opening guidance mark 73 only on the back surface 12, the user can recognize the opening direction of the package 1A without impairing the aesthetic appearance of the package 1A.

[0078] As shown in FIG. 15, a plurality of second opening guidance marks 74 indicating the position of the upper break line 40 and the opening direction are printed on the left surface 13 of the package 1A. The second opening guidance marks 74 have the function of visually guiding how to open the package 1A. For example, the second opening guidance marks 74 have a triangular shape with one vertex pointing in the vertical direction Z, and are printed in a position adjacent to the upper break line 40. Note that the shape of the second opening guidance marks 74 is not limited to a triangular shape and may be, for example, an arrow shape, as long as it allows the user to recognize the position of the upper break line 40 and the opening direction.

[0079] Additionally, a third decorative element 75 and a fourth decorative element 76 are printed on the left surface 13 of the packaging body 1A. The third decorative element 75 and the fourth decorative element 76 are, for example, illustrations of animal characters. As shown in FIG. 15 , a plurality of the third decorative elements 75 and a plurality of the fourth decorative elements 76 may be printed on the left surface 13.

[0080] The third decorative element 75 is printed on the upper part 3 of the left surface 13, and the fourth decorative element 76 is printed on the lower part 4 of the left surface 13. In other words, the third decorative element 75 is positioned closer to the top surface 16 than the horizontal break line 22 of the left surface 13, and the fourth decorative element 76 is positioned closer to the bottom surface 15 than the horizontal break line 22 of the left surface 13.

[0081] As shown in FIG. 15 , the third decorative element 75 is printed upside down relative to the fourth decorative element 76. That is, the third decorative element 75 is printed in a configuration that faces upward when the packaging body 1A is turned upside down so that the top surface 16 faces downward. On the other hand, the fourth decorative element 76 is printed in a configuration that faces upward when the packaging body 1A is placed so that the bottom surface 15 faces downward. As shown in FIG. 8 , when the packaging body 1A is separated into an upper portion 3 and a lower portion 4, the upper portion 3 of the packaging body 1A is stored with the top surface 16 facing downward. By printing the third decorative element 75 upside down, both the third decorative element 75 and the fourth decorative element 76 can face upward when the packaging body 1A is separated and stored. The third decorative element 75 and the fourth decorative element 76 may be printed on both the left surface 13 and the right surface 14, or may be printed only on the right surface 14.

[0082] While various embodiments of the packaging body have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the invention. In other words, it should be noted that the above-described embodiments are for illustrative purposes only and do not limit the scope of the present invention.

[0083] For example, in the above embodiment, the upper break line 40, the connecting break line 42, and the lower break line 50 are formed in the package 1, but the upper break line 40, the connecting break line 42, and the lower break line 50 do not necessarily have to be formed. If the horizontal break line 22 is formed at least in the middle portion 5 of the peripheral portion 10, it is possible to easily remove the absorbent article 2 from the package 1 while preventing the package 1 from being unintentionally opened.

[0084] Furthermore, in the above embodiment, a tape-type disposable diaper has been described as an example of the absorbent article 2, but the absorbent article 2 may also be a pants-type disposable diaper, a sanitary napkin, a pet sheet, etc. The horizontal break line 22 may be formed along the boundary between the absorbent article arranged in the lower row and the absorbent article arranged in the upper row.

[0085] The various embodiments described above can be combined to the extent that no contradiction occurs. [Explanation of symbols]

[0086] 1,1A...packaging body, 2,2a,2b...absorbent article, 3...upper part, 4...lower part, 5...middle part, 10...peripheral part, 11...front part, 12...back part, 13...left part (side part), 14...right part (side part), 15...bottom part, 16...top part, 22...horizontal break line, 28...easy to break part, 29...hard to break part, 40...upper break line, 42...connecting break line, 48...standing part, 50...lower break line, 71...first decorative element, 72...second decorative element, 73...first opening guidance mark (opening guidance mark), 75...third decorative element, 76...fourth decorative element, 113...absorbent core.

Claims

1. A synthetic resin packaging body for storing a plurality of absorbent articles, each having an absorbent core and stacked in at least two layers, A bottom portion; The top surface and a peripheral portion disposed between the bottom surface portion and the top surface portion and including a front surface portion, a rear surface portion, and a pair of side surfaces; Equipped with a horizontal break line extending substantially parallel to the bottom surface portion is formed on the peripheral surface portion; the horizontal break line is formed continuously around the entire circumference of the peripheral surface portion, and is formed in a position in the up-down direction between the absorbent cores of some of the absorbent articles arranged in a lower tier among the plurality of absorbent articles and the absorbent cores of some of the absorbent articles arranged in an upper tier among the plurality of absorbent articles, a first decorative element and a second decorative element are printed on the front surface; the first decorative element and the second decorative element are decorative elements for identifying a product, The first decorative element is disposed at a position closer to the top surface than the horizontal break line of the front surface, and the second decorative element is disposed at a position closer to the bottom surface than the horizontal break line of the front surface, An opening guide mark indicating the position of the horizontal breaking line and the opening direction is printed on the rear surface, The opening guide mark is not printed on the front surface, an upper break line extending linearly in the up-down direction is formed at a position closer to the top surface portion than the horizontal break line of the peripheral surface portion; A connecting break line is formed on the peripheral surface portion, the connecting break line extending in a curved shape between the horizontal break line and an end portion of the upper break line on the bottom surface portion side, A package in which the length between the gaps of the connecting break lines is shorter than the length between the gaps of the upper break lines.

2. the peripheral portion includes a lower portion surrounding the absorbent cores of some of the absorbent articles arranged in the lower tier, an upper portion surrounding the absorbent cores of some of the absorbent articles arranged in the upper tier, and an intermediate portion located between the lower portion and the upper portion, The lower portion and the upper portion are regions that receive a surface pressure of 12 N or more from the plurality of absorbent articles, the intermediate portion is a region that receives a surface pressure of less than 12 N from the plurality of absorbent articles, The package of claim 1 , wherein the horizontal break line is formed in the middle portion.

3. The packaging body according to claim 1 or 2, wherein the horizontal break line is formed along a boundary between some of the absorbent articles arranged in the lower tier and some of the absorbent articles arranged in the upper tier.

4. The packaging body according to claim 1 or 2, wherein the peripheral surface portion has a thickness of 40 μm or more and 80 μm or less.

5. The packaging body according to claim 1 or 2, wherein the peripheral surface portion has a bending resistance of 100 mm or less.

6. The packaging body according to claim 1 or 2, wherein the peripheral surface portion has a bending resistance of 40 mm or more and 70 mm or less.

7. The package according to claim 1 or 2, wherein the total weight of the plurality of absorbent articles is 800 g or more and 3500 g or less.

8. The pair of side surfaces have upstanding portions formed by two synthetic resin sheets fused together in a stacked state, The packaging body according to claim 1 or 2, wherein the upright portion extends in the up-down direction between the bottom surface portion and the top surface portion.

9. The horizontal break line includes a difficult-to-break portion and an easy-to-break portion that is more easily broken than the difficult-to-break portion, The package according to claim 1 , wherein the connecting break line extends in a curved line between an end of the easy-to-break portion of the horizontal break line and an end of the upper break line on the bottom side.

10. the horizontal break line, the upper break line, and the connecting break line are perforations; 10. The package of claim 9, wherein the length between the breaks in the hard-to-break portion of the horizontal break line is shorter than the length between the breaks in the upper break line.

11. The package according to claim 9 or 10, wherein the length between the gaps of the easy-to-break portion of the horizontal break line and the connecting break line is shorter than the length between the gaps of the hard-to-break portion of the horizontal break line.

12. The package according to claim 1 or 2, wherein a lower break line extending linearly in the up-down direction is further formed on the peripheral surface at a position closer to the bottom surface than the horizontal break line.

13. The packaging body according to claim 1 or 2, wherein the fibers of the peripheral surface portion are oriented in the vertical direction.

14. The packaging body according to claim 1 , wherein the first decorative element is a brand logo and the second decorative element is an illustration of a character.

15. a third decorative element and a fourth decorative element are printed on at least one of the pair of side surface portions; The third decorative element is disposed at a position closer to the top surface than the horizontal break line of the one side surface portion, and the fourth decorative element is disposed at a position closer to the bottom surface than the horizontal break line of the one side surface portion, 3. The packaging according to claim 1, wherein the third decorative element is depicted upside down relative to the fourth decorative element.

16. The package according to claim 1 or 2, wherein the top surface does not have an opening that serves as a handle for the package.

17. A synthetic resin packaging body for storing a plurality of absorbent articles stacked in at least two layers, A bottom portion; The top surface and a peripheral portion disposed between the bottom surface portion and the top surface portion and including a front surface portion, a rear surface portion, and a pair of side surfaces; Equipped with the peripheral portion includes a lower portion surrounding some of the absorbent articles arranged in a lower tier among the plurality of absorbent articles, an upper portion surrounding some of the absorbent articles arranged in an upper tier among the plurality of absorbent articles, and an intermediate portion located between the lower portion and the upper portion, a horizontal break line extending continuously around the entire periphery of the peripheral surface portion is formed in the intermediate portion of the peripheral surface portion; a first decorative element and a second decorative element are printed on the front surface; the first decorative element and the second decorative element are decorative elements for identifying a product, The first decorative element is disposed at a position closer to the top surface than the horizontal break line of the front surface, and the second decorative element is disposed at a position closer to the bottom surface than the horizontal break line of the front surface, An opening guide mark indicating the position of the horizontal breaking line and the opening direction is printed on the rear surface, The opening guide mark is not printed on the front surface, an upper break line extending linearly in the up-down direction is formed at a position closer to the top surface portion than the horizontal break line of the peripheral surface portion; A connecting break line is formed on the peripheral surface portion, the connecting break line extending in a curved shape between the horizontal break line and an end portion of the upper break line on the bottom surface portion side, A package in which the length between the gaps of the connecting break lines is shorter than the length between the gaps of the upper break lines.

18. The lower portion and the upper portion are regions that receive a surface pressure of 12 N or more from the plurality of absorbent articles, The packaging body according to claim 17, wherein the intermediate portion is a region that receives a surface pressure of less than 12 N from the plurality of absorbent articles.

Citation Information

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