Packaging body for absorbent article and independent packaging body for absorbent article

Abstract

Provided are a package for an absorbent article and an independent package for an absorbent article, which impart an impression of softness and high quality to the absorbent article. A package (40) for an absorbent article, the package (40) comprising: an individual package (30) provided with an absorbent article (1) and a package (31) for individually packaging the absorbent article (1); the absorbent article has an absorbent body (10) containing a highly absorbent polymer (11) and a surface sheet (2) provided on the skin side of the absorbent body, the article bag has a polyethylene film, a polyethylene terephthalate film or a polypropylene film as a base material (42), a first printed layer (71) containing metal particles is provided on the outer surface side of the base material, and a second printed layer (71) containing metal particles is provided on the outer surface side of the base material. A second printed layer that does not contain metal particles is provided on the outer side of the first printed layer in the thickness direction, and the average particle diameter of the metal particles is smaller than the average particle diameter of the highly absorbent polymer.

Description

TECHNICAL FIELD

[0001] The utility model relates to the packaging body of absorbent article and the independent packaging body of absorbent article. BACKGROUND

[0002] It is known that the following structure is provided: the film for absorbent article is subjected to metal printing to produce a glossy feeling, and the absorbent article is given the impression of high quality. For example, in Patent Literature 1, metal printing is applied to the bottom film of a diaper or the like. In addition, in Patent Literature 2, metal printing is applied to the independent packaging body of a sanitary napkin for physiological use.

[0003] PRIOR ART DOCUMENTS

[0004] PATENT LITERATURE

[0005] Patent Literature 1: Japanese Patent Application Publication No. 2021-7546

[0006] Patent Literature 2: International Patent Application Publication No. WO2020 / 095764 SUMMARY

[0007] PROBLEMS TO BE SOLVED BY THE INVENTION

[0008] There is a case where metal particles (for example, aluminum particles) are contained in the ink for metal printing, and the particles are raised in a convex shape to produce a particle feeling. In this case, the metal particles can be seen, and thus there is a risk that the high-absorbent polymer (so-called SAP) for the absorbent article is recalled, and a concern arises as to whether the SAP will fall off. In addition, even if a thin metal film (for example, an aluminum film) is used, a glossy feeling can be produced, but since it is harder than resin, there is a risk that the product (absorbent member) is left with the impression that it is also hard.

[0009] The utility model is made in view of the above-mentioned problems of the prior art, and the purpose is to give the absorbent article a soft and high-quality impression.

[0010] SOLUTION TO THE PROBLEM

[0011] The main utility model for achieving the above-mentioned purpose is an absorbent article package characterized by comprising: an individual package including an absorbent article and a package member that individually packages the absorbent article; and a bag that accommodates a plurality of the individual packages, the absorbent article including an absorbent body containing a superabsorbent polymer and a surface sheet provided on a skin side of the absorbent body, the bag including a polyethylene film, a polyethylene terephthalate film, or a polypropylene film as a base material, a first printed layer containing metal particles provided on an outer surface side of the base material, and a second printed layer not containing metal particles provided on an outer side in a thickness direction of the first printed layer, the average particle diameter of the metal particles being smaller than the average particle diameter of the superabsorbent polymer.

[0012] Preferably, the average thickness of the first printed layer is greater than the average thickness of the second printed layer, and the average thickness of the absorbent body is greater than the average thickness of the surface sheet.

[0013] Preferably, the maximum particle diameter of the metal particles is smaller than the average particle diameter of the superabsorbent polymer.

[0014] Preferably, a transparent film layer is provided on an outer side in the thickness direction of the second printed layer, a core wrap sheet is provided on an outer side of the absorbent body of the absorbent article, the average thickness of the transparent film layer is smaller than the average thickness of the surface sheet, and the average thickness of the surface sheet is greater than the average thickness of the core wrap sheet.

[0015] Preferably, a back sheet is provided on a non-skin side of the absorbent body, the average thickness of the first printed layer is greater than the average thickness of the second printed layer, and the average thickness of the absorbent body is greater than the average thickness of the back sheet.

[0016] Preferably, the bag has a presence region in which the first printed layer is present and a non-presence region in which the first printed layer is not present.

[0017] Preferably, a tear line formed by a plurality of holes is provided in the bag, and the tear line is disposed in the non-presence region.

[0018] Preferably, a tear line formed by a plurality of holes is provided in the bag, and the tear line is disposed in an end portion of the bag, the end portion being the non-presence region.

[0019] Preferably, a seal portion in which inner surfaces of the base material are heat-welded to each other is the non-presence region.

[0020] Preferably, an identification indicating a manufacturer that manufactures the absorbent article or a seller that sells the absorbent article is provided in the base material, and the identification is disposed in the non-presence region.

[0021] Preferably, the substrate is provided with an encoding in which predetermined information is recorded, and the encoding is provided in the non-existing area.

[0022] Preferably, the substrate is provided with a pattern indicating the absorbed absorbent article, and the pattern is provided in the existing area.

[0023] Preferably, the substrate is provided with a pattern indicating the absorbed absorbent article, and the pattern is provided in the non-existing area.

[0024] Preferably, the substrate is provided with a folding line formed in the non-existing area.

[0025] Preferably, the absorbent article and the package are absorbed in the bag in a folded state, and the area of the package in the folded state is larger than the area of the existing area of the bag when viewed from above.

[0026] Preferably, in the interior of the bag, when the absorbed independent package is brought close to the end of the bag, the part of the bag in the thickness direction which does not overlap with the independent package is the non-existing area.

[0027] The main utility model for achieving the above purpose is an independent package of absorbent articles, characterized in that the independent package of absorbent articles comprises an absorbent article and a package for independently packaging the absorbent article, the absorbent article has an absorbent body containing a superabsorbent polymer and a surface sheet provided on the skin side of the absorbent body, and the package has a polyethylene film, a polyethylene terephthalate film or a polypropylene film as a substrate, a first printed layer containing metal particles is provided on the outer surface side of the substrate, a second printed layer without metal particles is provided on the outer side of the thickness direction of the first printed layer, and the average particle size of the metal particles is smaller than the average particle size of the superabsorbent polymer.

[0028] Other features of the utility model will be illustrated through the description and drawings.

[0029] Effect of the utility model

[0030] According to the utility model, the absorbent article can be given a soft and high-quality impression. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a plan view of a sanitary napkin 1 observed from the skin side in an unfolded state.

[0032] Figure 2 is a schematic cross-sectional view of the sanitary napkin 1.

[0033] Figure 3is a plan view of the individual package 30 of the sanitary napkin in the unfolded state as viewed from the non-skin side.

[0034] Figure 4 is a plan view of the individual package 30 of the sanitary napkin in the unfolded state as viewed from the skin side.

[0035] Figure 5A is a plan view of the opening surface side of the individual package 30 in the folded state, Figure 5B is a plan view of the non-opening surface side of the individual package 30 in the folded state.

[0036] Figure 6A is a view showing an example of the package 40 of the sanitary napkin, Figure 6B is a view showing a state after the pouch 41 is opened.

[0037] Figure 7 is a front view of the package 40.

[0038] Figure 8 is a rear view of the package 40.

[0039] Figure 9 is a side view of the package 40.

[0040] Figure 10A is a schematic cross-sectional view of the presence region Ra, Figure 10B is a schematic cross-sectional view of the non-presence region Rb.

[0041] Figures 11A-11C is an explanatory view showing an example of a printing method.

[0042] BRIEF DESCRIPTION OF DRAWINGS

[0043] 1: sanitary napkin (absorbent article); 2: surface sheet; 4: back sheet; 5: wing sheet; 6: side sheet; 8: adhesive portion; 9: adhesive portion; 10: absorbent body; 11: high-absorbency polymer; 12: core cover sheet; 20: compression portion; 21: linear compression portion; 22: dot-shaped compression portion; 30: individual package of sanitary napkin; 31: package member; 33: partition member; 34: release sheet; 35: sealing portion; 36: fusion portion; 37: adhesive portion; 38: joint portion; 40: package of sanitary napkin; 41: pouch; 42: base material; 42a, 42b: folding line; 43: sealing portion; 44: easy-to-tear line; 44a: hole; 45: opening portion; 51 to 54: pattern; 55: bar code; 56: QR code; 57: mark; 71: first printed layer; 72: second printed layer; 73: transparent film layer; Ra: presence region; Rb: non-presence region. DETAILED DESCRIPTION

[0044] According to the description and drawings of the present specification, at least the following matters become clear.

[0045] (Manner 1)

[0046] A package of absorbent articles, characterized by comprising: individual packages each including an absorbent article and a package member that individually packages the absorbent article, the absorbent article including an absorbent body containing a superabsorbent polymer and a surface sheet provided on a skin side of the absorbent body; and a bag that accommodates a plurality of the individual packages, the bag including a polyethylene film, a polyethylene terephthalate film, or a polypropylene film as a base material, a first printed layer containing metal particles provided on an outer surface side of the base material, and a second printed layer not containing metal particles provided on an outer side of the first printed layer in a thickness direction of the first printed layer, the average particle diameter of the metal particles being smaller than the average particle diameter of the superabsorbent polymer.

[0047] According to Manner 1, the first printed layer containing metal particles is covered with the second printed layer not containing metal particles, so that a splendid impression of metal printing can be left, and since the particles of the metal particles are not easily seen, an impression of high quality can be left. In addition, since the diameter of the metal particles is small and the particles are not easily seen, an impression that the superabsorbent polymer does not fall off when the absorbent article is used can be left. In addition, since the bag is formed of a soft polyethylene film, a polyethylene terephthalate film, or a polypropylene film, an impression that the absorbent article is also soft (is soft) can be left.

[0048] (Manner 2)

[0049] The package of absorbent articles according to Manner 1, characterized in that the average thickness of the first printed layer is greater than the average thickness of the second printed layer, and the average thickness of the absorbent body is greater than the average thickness of the surface sheet.

[0050] According to Manner 2, by making the relationship between the thicknesses of the first printed layer and the second printed layer the same as the relationship between the thicknesses of the absorbent body and the surface sheet, an impression that the superabsorbent polymer does not fall off before the package is opened can be left, and an impression that it is a high-quality product can be left.

[0051] (Manner 3)

[0052] The package of absorbent articles according to Manner 1 or Manner 2, characterized in that the maximum particle diameter of the metal particles is smaller than the average particle diameter of the superabsorbent polymer.

[0053] According to Manner 3, an impression that the superabsorbent polymer does not easily fall off can be further left.

[0054] (Manner 4)

[0055] The packaging of the absorbent article according to any one of modes 1 to 3, characterized in that a transparent film layer is provided on the outside in the thickness direction of the second printed layer, a core wrap sheet is provided on the outside of the absorbent body of the absorbent article, the average thickness of the transparent film layer is smaller than the average thickness of the surface sheet, and the average thickness of the surface sheet is larger than the average thickness of the core wrap sheet.

[0056] According to mode 4, by having a thinner transparent film layer on the outside, the colors of the respective printed layers can be displayed as they are, and not only can the metal particles be prevented from falling off, but also the ink can be prevented from falling off, so a higher quality impression can be left. Also, in the absorbent article, the falling off of the superabsorbent polymer can be prevented by the two layers of the core wrap sheet and the surface sheet.

[0057] (Mode 5)

[0058] The packaging of the absorbent article according to any one of modes 1 to 4, characterized in that a back sheet is provided on the non-skin side of the absorbent body, the average thickness of the first printed layer is larger than the average thickness of the second printed layer, and the average thickness of the absorbent body is larger than the average thickness of the back sheet.

[0059] According to mode 5, since the relationship between the thickness of the second printed layer and the first printed layer containing the metal particles is the same as the relationship between the thickness of the back sheet and the absorbent body containing the superabsorbent polymer, an impression can be given that the superabsorbent polymer will not fall off before the packaging is opened.

[0060] (Mode 6)

[0061] The packaging of the absorbent article according to any one of modes 1 to 5, characterized in that the pouch has a presence region in which the first printed layer is present and a non-presence region in which the first printed layer is not present.

[0062] According to mode 6, by having a presence region in the pouch, a high quality impression can be left, and by having a non-presence region in the pouch, softness can be felt.

[0063] (Mode 7)

[0064] The packaging of the absorbent article according to mode 6, wherein a tear line formed by a plurality of holes is provided in the pouch, and the tear line is disposed in the non-presence region.

[0065] According to mode 7, since the tear line does not contain metal particles, the metal particles can be prevented from falling off when the tear line is formed and when the tear line is pulled apart.

[0066] (Mode 8)

[0067] The packaging of the absorbent article according to Mode 6 or Mode 7, wherein the pouch is provided with a tear line formed by a plurality of holes, and the tear line is provided at an end portion of the pouch, the end portion being the non-existing region.

[0068] According to Mode 8, softness can be felt when the tear line is pulled apart by pinching the end portion of the pouch with fingers.

[0069] (Mode 9)

[0070] The packaging of the absorbent article according to any one of Modes 6 to 8, wherein the inner surfaces of the base material are heat-fused to each other to form a seal portion, and the seal portion is the non-existing region.

[0071] According to Mode 9, the inner surfaces of the base material can be reliably heat-fused to each other because the seal portion does not contain metal particles.

[0072] (Mode 10)

[0073] The packaging of the absorbent article according to any one of Modes 6 to 9, wherein the base material is provided with an identification indicating a manufacturer of the absorbent article or a seller of the absorbent article, and the identification is disposed in the non-existing region.

[0074] According to Mode 10, the identification indicating the manufacturer of the absorbent article or the seller of the absorbent article does not contain metal particles, and thus the identification can be easily read.

[0075] (Mode 11)

[0076] The packaging of the absorbent article according to any one of Modes 6 to 10, wherein the base material is provided with a code in which predetermined information is recorded, and the code is disposed in the non-existing region.

[0077] According to Mode 11, a decrease in reading accuracy of the code (bar code, QR code (registered trademark), or the like) can be suppressed.

[0078] (Mode 12)

[0079] The packaging of the absorbent article according to any one of Modes 6 to 11, wherein the base material is provided with a pattern indicating the absorbent article accommodated therein, and the pattern is disposed in the existing region.

[0080] According to Mode 12, the shape of the absorbent article accommodated therein can be made conspicuous by locating the pattern indicating the absorbent article in the existing region (containing metal particles).

[0081] (Mode 13)

[0082] The packaging of the absorbent article according to any one of modes 6 to 11, wherein a pattern indicating the absorbent article housed is provided on the base material, and the pattern is disposed in the non-existing area.

[0083] According to mode 13, by locating the pattern indicating the absorbent article in the non-existing area (free of metal particles), the softness of the absorbent article housed can be felt.

[0084] (Mode 14)

[0085] The packaging of the absorbent article according to any one of modes 6 to 13, wherein a fold line is provided on the base material, and the fold line is formed in the non-existing area.

[0086] According to mode 14, since the fold line is free of metal particles at the fold line, the fold line is easily formed.

[0087] (Mode 15)

[0088] The packaging of the absorbent article according to any one of modes 6 to 14, wherein the absorbent article and the package are housed in the pouch in a folded state, and the area of the package in the folded state is larger than the area of the existing area of the pouch when viewed from above.

[0089] According to mode 15, by making the area of the package (absorbent article) in the folded state larger than the area of the existing area of the pouch, when the packaging is held, the hardness can not be easily felt.

[0090] (Mode 16)

[0091] The packaging of the absorbent article according to any one of modes 6 to 15, wherein, inside the pouch, when the housed independent package is brought close to the end portion of the pouch, the portion of the pouch in the thickness direction that does not overlap the independent package is the non-existing area.

[0092] According to mode 16, the portion of the pouch in the thickness direction that does not overlap the independent package can be easily bent, and in addition, the hardness can not be easily felt.

[0093] (Mode 17)

[0094] An independent package of an absorbent article, characterized by comprising an absorbent article having an absorbent body containing a superabsorbent polymer and a surface sheet provided on a skin side of the absorbent body, and a package member for individually packaging the absorbent article, the package member having a polyethylene film, a polyethylene terephthalate film or a polypropylene film as a base material, a first printed layer containing metal particles provided on an outer surface side of the base material, and a second printed layer not containing metal particles provided on an outer side of the first printed layer in a thickness direction of the first printed layer, the average particle diameter of the metal particles being smaller than the average particle diameter of the superabsorbent polymer.

[0095] According to Mode 17, the same effects as in the case of the package can be obtained for the independent package of the absorbent article. That is, the first printed layer containing metal particles is covered with the second printed layer not containing metal particles, so that a luxurious impression of metal printing can be left, and since the particles of the metal particles are not easily seen, a high-quality impression can be left. In addition, since the diameter of the metal particles is small and the particles are not easily seen, an impression that the superabsorbent polymer does not come off when the absorbent article is used can be left. In addition, since the package member is formed of a soft resin film (polyethylene film, polyethylene terephthalate film or polypropylene film), an impression that the absorbent article is also soft (is soft) can be left.

[0096] == Mode ==

[0097] Hereinafter, the present mode will be described taking a sanitary napkin as an example of the absorbent article. However, the absorbent article is not limited to the sanitary napkin (hereinafter, simply referred to as a sanitary napkin), and can be, for example, a sanitary pad, an absorbent pad (a light incontinence pad) or the like.

[0098] <<Basic Structure of Sanitary Napkin 1>>

[0099] Figure 1 is a plan view of the sanitary napkin 1 in an unfolded state as viewed from the skin side. Figure 2 is a schematic cross-sectional view of the sanitary napkin 1. The sanitary napkin 1 in the unfolded state has a longitudinal direction, a width direction and a thickness direction orthogonal to each other. In the longitudinal direction of the sanitary napkin 1, the side which comes into contact with the lower abdomen of the wearer is referred to as the "front side", and the side which comes into contact with the buttocks of the wearer is referred to as the "rear side". In addition, in the thickness direction of the sanitary napkin 1 (refer to Figure 2 ), the side which comes into contact with the skin of the wearer is referred to as the "skin side", and the opposite side thereof is referred to as the "non-skin side".

[0100] As shown in Figure 2As shown, the sanitary napkin 1 has a surface sheet 2, an absorbent body 10, a core cover sheet 12, a back sheet 4, a wing sheet 5, and a side sheet 6. Adjacent materials in the thickness direction are joined and fixed using an adhesive (not shown) such as a hot-melt adhesive (HMA).

[0101] The surface sheet 2 is a member that comes into contact with the user's skin when the sanitary napkin 1 is used, and allows excreted liquid such as menstrual blood (hereinafter also referred to as excrement) to pass through from the skin side to the non-skin side in the thickness direction, and move toward the absorbent body 10. Therefore, the surface sheet 2 uses a soft sheet of an appropriate liquid permeable sheet such as a thermally bonded nonwoven fabric. In addition, the surface sheet 2 can also be a sheet using cotton as a natural fiber (for example, a sheet member composed of 100% cotton, a mixed sheet of cotton and a thermally bonded nonwoven fabric, or the like). Thereby, irritation to the wearer's skin can be further reduced. Furthermore, a liquid permeable sheet (intermediate sheet) can also be provided between the surface sheet 2 and the absorbent body 10.

[0102] The back sheet 4 is disposed on the non-skin side of the absorbent body 10, and suppresses the case where liquid absorbed by the absorbent body 10 seeps out to the clothing side (non-skin side) such as an undergarment when the sanitary napkin 1 is used. The back sheet 4 uses a soft sheet (film) of an appropriate liquid impermeable resin film of polyethylene (PE) or the like. Furthermore, the planar size of the surface sheet 2 and the back sheet 4 is larger than the planar size of the absorbent body 10.

[0103] The wing sheet 5 is extended to a position further outward in the width direction than the side sheet 6 together with the back sheet 4, and a wing portion 1w is formed in the central portion in the longitudinal direction of the sanitary napkin 1.

[0104] The side sheet 6 can be either a liquid permeable sheet or a liquid impermeable sheet, and can be exemplified by a nonwoven fabric or the like that is the same as the surface sheet 2. In addition, the side sheet 6 is folded back to the inside in the width direction in a manner so as to be located at the end portion of the surface sheet 2 on the skin side in the width direction.

[0105] The absorbent body (absorbent core) 10 is a member that absorbs excrement (liquid) such as menstrual blood and holds it inside. The absorbent body 10 is formed by shaping liquid-absorbing fibers such as pulp fibers into a predetermined shape (for example, a substantially hourglass shape in plan view). In addition, a plurality of granular superabsorbent polymers (so-called SAP) 11 are contained (mixed) in the absorbent body 10. Furthermore, in the present embodiment, the absorbent body 10 means the absorbent core, and does not include the core cover sheet 12. Thereby, the thickness (average thickness) of the absorbent body 10 described later corresponds to the thickness (average thickness) of the absorbent core.

[0106] The core cover sheet 12 is a liquid permeable sheet member provided on the outside of the absorbent body 10 in a manner so as to cover the surface (outer peripheral surface) of the absorbent body 10, and can be exemplified by a tissue paper or the like.

[0107] In addition, as shown in FIG. 1, the sanitary napkin 1 has a pair of side sheets 6, and the pair of side sheets 6 are disposed on the outer sides in the width direction of the sanitary napkin 1. Figure 1 and Figure 2As shown, the sanitary napkin 1 has a compressed portion 20 compressed in the thickness direction from the skin side of the surface sheet 2. In the compressed portion 20, the thickness of the sanitary napkin 1 is thinner than the surrounding, and the density of the material (fiber) constituting the sanitary napkin 1 becomes higher. In the compressed portion 20, the surface sheet 2 and the absorbent body 10 (part or all) are compressed in the thickness direction. However, the compressed portion 20 can be compressed in the thickness direction of the sanitary napkin 1 from the skin side of the surface sheet 2, and can be, for example, not reach the absorbent body 10. Figure 2 In the illustrated compressed portion 20, the surface sheet 2 and the absorbent body 10 (part or all) are compressed in the thickness direction. However, the compressed portion 20 can be compressed in the thickness direction of the sanitary napkin 1 from the skin side of the surface sheet 2, and can be, for example, not reach the absorbent body 10.

[0108] In addition, as shown in FIG. 1, the sanitary napkin 1 has a linear compressed portion 21 in which a plurality of point-like compressed portions are arranged in a line, and a plurality of point-like compressed portions 22 arranged discretely as the compressed portion 20. However, the number, shape, and arrangement of the compressed portion 20 are not particularly limited. In addition, the linear compressed portion can be a compressed portion continuously compressed in a groove shape. Figure 1

[0109] The above describes the basic structure of the sanitary napkin 1, but the structure of the sanitary napkin is not limited to the above. For example, it can be a sanitary napkin without the wing portion 1w, the core cover sheet 12, and the like.

[0110] <<Independent packaging body 30 of sanitary napkin>>

[0111] Figure 3 is a plan view of the independent packaging body 30 of the sanitary napkin in an unfolded state viewed from the non-skin side. Figure 4 is a plan view of the independent packaging body 30 of the sanitary napkin in an unfolded state viewed from the skin side. Figure 5A is a plan view of the opening side of the independent packaging body 30 in a folded state, Figure 5B is a plan view of the non-opening side of the independent packaging body 30 in a folded state. In addition, in the plan view of Figure 3 , Figure 4 is a plan view of the independent packaging body 30 in a folded state viewed from the non-skin side. Figure 3 , Figure 4 is a plan view of the independent packaging body 30 in a folded state viewed from the skin side. Figure 5A , Figure 5B is a view of the independent packaging body 30 in a folded state opened and unfolded, and the sealing portion 35, the adhesive portion 37, and the like described later are formed.

[0112] The independent packaging body 30 of the sanitary napkin 1 (hereinafter also simply referred to as "independent packaging body 30") is formed by independently packaging the sanitary napkin 1 with a packaging member 31, and includes the sanitary napkin 1, the packaging member 31, the partition member 33, and the release sheet 34.

[0113] In addition, as shown in FIG. 1, the sanitary napkin 1 has a linear compressed portion 21 in which a plurality of point-like compressed portions are arranged in a line, and a plurality of point-like compressed portions 22 arranged discretely as the compressed portion 20. However, the number, shape, and arrangement of the compressed portion 20 are not particularly limited. In addition, the linear compressed portion can be a compressed portion continuously compressed in a groove shape. Figure 3 ​As shown, a plurality of adhesive portions 8 formed by applying an adhesive or the like are provided on the non-skin side of the sanitary napkin 1 (i.e., the non-skin side of the backsheet 4). On the main body portion of the sanitary napkin 1, a plurality of rectangular adhesive portions 8 extending in the longitudinal direction are provided in alignment in the width direction. The adhesive portions 8 serve to fix the main body portion of the sanitary napkin 1 to the inner side of the undergarment of the wearer.

[0114] In addition, as shown in FIG. 2, a plurality of adhesive portions 9 formed by applying an adhesive or the like are provided on the wings 1w in alignment in the width direction. When the sanitary napkin 1 is worn, the wings 1w are folded and fixed to the outer side of the undergarment by the adhesive portions 9. Note that the shape, number, and arrangement of the adhesive portions 8, 9 are not limited to those shown in the example. Figure 4 Figure 3 Figure 4

[0115] The packaging member 31 is a rectangular sheet member that individually packages the sanitary napkin 1, and has an inner side that fixes the sanitary napkin 1 (see Figure 4 ) and an outer side that is exposed to the outside in the individual package 30 (see Figure 3 ). In the present embodiment, a thin and soft resin film (polyethylene film (hereinafter, referred to as PE film)) is used as the packaging member 31. Note that the resin film is not limited to the PE film, and for example, a polyethylene terephthalate film (hereinafter, referred to as PET film) or a polypropylene film (hereinafter, referred to as PP film) can also be used.

[0116] In addition, the longitudinal direction of the packaging member 31 corresponds to the longitudinal direction of the sanitary napkin 1, and the width direction of the packaging member 31, i.e., the short direction of the packaging member 31 corresponds to the width direction of the sanitary napkin 1. In addition, one side of the longitudinal direction of the packaging member 31 (the side on which the adhesive portion 37 described later is present) corresponds to the front side of the sanitary napkin 1, and the other side of the longitudinal direction of the packaging member 31 corresponds to the rear side of the sanitary napkin 1.

[0117] In addition, as shown in FIG. 5, printing is partially applied to the non-skin side of the packaging member 31 (the outer side). Hereinafter, in the packaging member 31, the printed region is also referred to as region R1, and the region that is not printed is also referred to as region R2.

[0118] Sealing portions 35 for sealing the ends in the folded state are provided at both ends (a pair of end portions) in the width direction of the packaging member 31. In the sealing portions 35, the ends of the packaging member 31 that are folded together with the sanitary napkin 1 are overlapped and joined to each other. As the joining method, known joining methods such as heat sealing, ultrasonic sealing, an adhesive, and a combination of the above-described methods can be exemplified, and in the present embodiment, the ends are joined by heat sealing, and as shown in the drawing, a plurality of fusion portions 36 (in other words, the sealing portions 35 have a plurality of fusion portions 36) are formed in the sealing portions 35.

[0119] ​​​In addition, an adhesive portion 37 is formed in the width direction near the end T on the front side in the longitudinal direction of the package 31 (slightly behind the end T). In the adhesive portion 37, the package 31 in the folded state is adhered to each other by a hot melt adhesive (HMA). Further, the hot melt adhesive is an adhesive that is solid at normal temperature, is applied by being melted (hot-melted) by heating, and is adhered by being solidified by cooling.

[0120] In addition, the package 31 and the sanitary napkin 1 are fixed by the separator 33.

[0121] The separator 33 is a sheet member disposed between the back sheet 4 of the sanitary napkin 1 and the package 31. On the skin side surface of the separator 33, a peeling process is performed by using a silicone resin or the like so as to be adhered to the adhesive portion 8 provided in the main body portion (non-skin side surface of the back sheet 4) of the sanitary napkin 1 in a peelable manner. The peeling process is known, and thus the description is omitted.

[0122] On the other hand, the non-skin side surface of the separator 33 is fixed to the package 31 by the engaging portion 38 provided between the separator 33 and the package 31. As shown in FIG. 1, in the present embodiment, the engaging portion 38 is provided at three places. Further, in the engaging portion 38, the separator 33 and the package 31 are engaged (fixed) by a hot melt adhesive (HMA). Figure 3

[0123] Further, it can also be that the sanitary napkin 1 is directly fixed to the package 31 in a peelable manner without the separator 33.

[0124] In addition, as shown in FIG. 1, the wing portion 1w is folded to the inside in the width direction on the skin side surface of the sanitary napkin 1. The adhesive portion 9 of the wing portion 1w is covered by the release sheet 34. Figure 4

[0125] The package 31 and the sanitary napkin 1 in the unfolded state (a state in which the sealing portion 35 and the adhesive portion 37 are not formed) are folded at the two folding portions F1, F2 in the width direction. Then, the both end portions in the width direction of the package 31 folded together with the sanitary napkin 1 are sealed to form the sealing portion 35. In addition, in the state in which the package 31 is folded, the package 31 near the opening is adhered to each other by a hot melt adhesive (HMA) or the like to form the adhesive portion 37. Thus, the independent package 30 shown in FIGS. 1 and 2 is obtained. Figure 5A Figure 5B

[0126] ​​​​In this way, in the case of the individual package 30, the sanitary napkin 1 is folded in a manner covered with the wrapper 31, a pair of end portions in the width direction of the wrapper 31 is sealed, and further, the adhesion by the adhesive portion 37 is performed in the vicinity of the opening, whereby foreign matter is less likely to enter from the outside. Further, it can be configured that the adhesive portion 37 is not provided, but a sealing member is provided in the vicinity of the opening, for example, and the adhesion is performed by the sealing member.

[0127] When the individual package 30 is opened, the portion between the end T of the wrapper 31 of the opened side of the individual package 30 and the adhesive portion 37 is pinched by fingers and pulled, whereby the adhesion of the adhesive portion 37 and the sealing portion 35 is released, and the folded portions Fl, F2 are unfolded. Thus, a state as shown in Figure 5A Figure 3 Figure 4

[0128] The above describes the individual package 30 of the sanitary napkin, but the structure of the individual package 30 is not limited to the above. For example, the number of the folded portions Fl, F2 of the wrapper 31 is not limited to two, but can be one, or three or more. Further, it can be configured that the wrapper 31 and the sanitary napkin 1 are folded not only by the folded portions Fl, F2 in the width direction but also by the folded portions in the longitudinal direction. Further, it can be configured that the wrapper 31 and the sanitary napkin 1 are folded in a separate manner. That is, it can be configured that the wrapper 31 is folded with the sanitary napkin 1 preliminarily folded.

[0129] << Package 40 of Sanitary Napkin >>

[0130] Figure 6A is a view showing an example of a package 40 of a sanitary napkin, Figure 6B is a view showing a state after an article bag 41 is opened. The package 40 of the sanitary napkin (hereinafter, also simply referred to as "package 40") has a plurality of (four in this case) individual packages 30 of the sanitary napkin and an article bag 41 that accommodates the plurality of individual packages 30 of the sanitary napkin.

[0131] Figure 6A and Figure 6B The article bag 41 exemplified in FIGS. 12A and 12B has a longitudinal direction, a lateral direction, and a front-rear direction (thickness direction) that intersect with each other. Further, the longitudinal direction is a longitudinal direction of the article bag 41, and the lateral direction is a lateral direction of the article bag 41. Further, in the article bag 41, the front-rear direction corresponds to the thickness direction of the individual package 30 (the sanitary napkin 1). Further, the longitudinal direction of the article bag 41 corresponds to the width direction of the individual package 30. However, it is not limited thereto, but the lateral direction of the article bag 41 can correspond to the width direction of the individual package 30. Figure 6B

[0132] The article bag 41 has a base material 42, a sealing portion 43, and a tearable line 44. ​​​​

[0133] The base material 42 is a member constituting the pouch 41 and is formed of a resin film such as a PE film, a PET film, or a PP film (a PE film in the present embodiment). As described later, printing of characters, patterns, and the like is applied to the outer side of the base material 42. In addition, fold lines 42a and 42b are provided at both ends in the lateral direction of the base material 42 and are bent. At the fold line 42a, the base material 42 is folded to be convex, and at the fold line 42b, the base material 42 is folded to be concave.

[0134] The seal portion 43 is provided by heat-sealing the inner surfaces of the base material 42 to each other at both ends in the longitudinal direction of the pouch 41. That is, a pair of seal portions 43 is provided at both ends in the longitudinal direction.

[0135] The tear line 44 is a site for opening the pouch 41, and a pair of tear lines 44 is provided at both end portions (sites inside the seal portions 43) in the longitudinal direction of the pouch 41. The tear line 44 is formed of a plurality of holes 44a along the lateral direction. In addition, the tear line 44 can be provided only on one side in the longitudinal direction.

[0136] When the user holds one end portion of the pouch 41 with a finger from a state shown in FIG. 7A and pulls the end portion along the tear line 44, an opening portion 45, which becomes an outlet of the individual package 30, is formed as shown in FIG. 7B, and the pouch 41 becomes an opened state. Thus, the individual package 30 housed in the pouch 41 can be taken out from the opening portion 45. Figure 6A Figure 6B

[0137] <<Design of the Package 40>>

[0138] Figure 7 FIG. 6A is a front view of the package 40. FIG. 6B is a rear view of the package 40. FIG. 6C is a side view of the package 40. In addition, the front view is a view obtained by observing the package 40 from the front side, and the rear view is a view obtained by observing the package 40 from the rear side. In addition, the side view is a view obtained by observing the package 40 from one side in the lateral direction. Although not shown, the same or different printing is applied to the other side in the lateral direction. Figure 8 FIG. 6B is a rear view of the package 40. In addition, Figure 9 FIG. 6C is a side view of the package 40. In addition, the front view is a view obtained by observing the package 40 from the front side, and the rear view is a view obtained by observing the package 40 from the rear side. In addition, Figure 9 FIG. 6D is a side view of the package 40. Although not shown, the same or different printing is applied to the other side in the lateral direction.

[0139] On the surface of the package 40 (specifically, on the base material 42 of the pouch 41) of the present embodiment, printing including characters, patterns, and the like is applied. For example, on the front face (front side) of the package 40, a floral pattern 51, a linear pattern 52, and a regular hexagonal pattern 53 are printed. In addition, on the back face (rear side), the pattern 52, a pattern 54 indicating the housed absorbent article (panty liner 1), a bar code 55, and a QR code (registered trademark) 56 are printed. In addition, on the side face (lateral side), the pattern 52, the pattern 54, the bar code 55, and the QR code 56 are printed. Figure 7 Figure 8 Figure 9 ​​​​), and a mark 57 indicating a manufacturer (or a seller) or the like is printed. In addition, the kind of the pattern and the arrangement position are not limited to the above.

[0140] In addition, in the present embodiment, printing using a metallic ink (metallic printing) is applied to a part of the article bag 41, whereby it is configured to be able to leave a luxurious impression and a high-class feeling. In addition, the metallic ink refers to an ink containing particles of a metal component (hereinafter, metal particles). When printing is performed using the metallic ink, it is possible to improve the gloss, and it is possible to form a pattern that shines.

[0141] As described above, since the metallic printing is applied to a part of the article bag 41, the article bag 41 has a region containing the metal particles (hereinafter, a present region Ra) and a region not containing the metal particles (hereinafter, a non-present region Rb). In the present embodiment, the present region Ra is a region where the metallic printing is applied to the article bag 41. Figure 7 、 Figure 8 In the present embodiment, the present region Ra is illustrated by a hatched line. For example, in Figure 7 , the letters "ABC" in the pattern 51 and the pattern 52 are the present region Ra. In addition, the present region Ra is also a region other than the chemical symbol (Ag + ) in the pattern 53 of a regular hexagonal shape.

[0142] <<About the Present Region Ra and the Non-Present Region Rb>>

[0143] Figure 10A is a schematic cross-sectional view of the present region Ra, Figure 10B is a schematic cross-sectional view of the non-present region Rb.

[0144] <Structure of the Present Region Ra>

[0145] The present region Ra is a region where a printed layer containing the metal particles (a first printed layer 71 described later) is present, and is a region where a high gloss feeling is obtained by the metal particles.

[0146] As illustrated in Figure 10A , the present region Ra is formed by the substrate 42, the first printed layer 71, the second printed layer 72, and the transparent film layer 73.

[0147] As described above, the substrate 42 is formed of a soft resin film such as a PE film, a PET film, or a PP film. The substrate 42 of the present embodiment is an ivory film (PE film) that is ivory, and the average thickness is about 30 μm. In addition, as a method of measuring the average thickness of such a film, it is possible to calculate it by measuring the thickness of a plurality of positions of a measurement object (in this case, a film) using a thickness measuring device (for example, a dial gauge thickness gauge or the like manufactured by Ozaki Seiki Co., Ltd.), and calculating the average value thereof.

[0148] The first printing layer 71 is disposed on a portion of the surface (outer side) of the substrate 42 and is printed with metallic ink containing metal particles. More specifically, the first printing layer 71 is formed (printed) using polyurethane ink containing metal particles and pigment. Furthermore, in this embodiment, the first printing layer 71 is printed by gravure printing (described later).

[0149] In this embodiment, aluminum particles (aluminum granules) are used as the metallic particles in the metallic ink, and silver pigment is used as the pigment. Therefore, the first printing layer 71 is silver in color. Furthermore, the proportion of aluminum particles added to the metallic ink in this embodiment is approximately 25%, and the average particle size is 3μm to 4μm (the method for measuring the average particle size will be described later). By using such a metallic ink to form the first printing layer 71, a metallic feel (gloss) based on metallic particles can be achieved. Moreover, the metallic particles are not limited to aluminum particles; for example, copper particles may also be used. Additionally, the pigment is not limited to silver; for example, gold may also be used.

[0150] The second printed layer 72 is a layer formed on the outside of the substrate 42 (the first printed layer 71 in the presence region Ra), and is formed (printed) by a pigment-containing polyurethane ink. This second printed layer 72 does not contain metal particles. Furthermore, the average thickness of the second printed layer 72 is smaller than the average thickness of the first printed layer 71 (approximately half the average thickness of the first printed layer 71).

[0151] Furthermore, the second printed layer 72 is formed on the entire outer surface of the substrate 42, covering the first printed layer 71 in the area Ra. Moreover, it is preferable that the portion of the second printed layer 72 formed above (on the outer side) the first printed layer 71 is transparent or translucent. This ensures that the glossiness of the first printed layer 71 is not diminished.

[0152] A transparent film layer 73 is disposed outside the second printed layer 72, forming the outermost layer of the encapsulation 40. The transparent film layer 73 is formed of a transparent resin film (PE film in this embodiment). Furthermore, the transparent film layer 73 is not limited to PE film; it may also be formed of PET film or PP film. In this embodiment, the average thickness of the transparent film layer 73 is approximately 30 μm, which is approximately equal to the average thickness of the substrate 42.

[0153] <Structure of the non-existent region Rb>

[0154] like Figure 10B As shown, the non-existent region Rb is formed by comprising a substrate 42, a second printed layer 72, and a transparent film layer 73. In this non-existent region Rb, the first printed layer 71 is not formed (is not present), and the second printed layer 72 is provided on the outer surface of the substrate 42. Otherwise, it is the same as the present region Ra, so the description is omitted.

[0155] Here, it is assumed that in the case where a thin metal film such as an aluminum film is used as the base material of the article bag 41, a metallic luster can be produced, but since the base material becomes hard, there is a risk that an impression is left that the absorbent article (here, the sanitary napkin 1) housed in the article bag 41 is also hard.

[0156] In contrast to this, in the present embodiment, the base material 42 of the article bag 41 uses a thin and soft resin film (a PE film in the present embodiment). In addition, the article bag 41 has a presence region Ra in which the first printed layer 71 containing metal particles is present and a non-presence region Rb in which the first printed layer 71 is not present. By having the presence region Ra in the article bag 41, a luster can be produced to leave an impression of high quality, and in addition, by having the non-presence region Rb in the article bag 41, the softness of the base material 42 can be felt.

[0157] In addition, the particle diameter (average particle diameter) of the metal particles of the first printed layer 71 is smaller than the particle diameter (average particle diameter) of the superabsorbent polymer 11, and furthermore, the second printed layer 72 is formed on the first printed layer 71. Therefore, the particles of the metal particles of the first printed layer 71 are not easily visible from the outside.

[0158] Specifically, the average particle diameter of the superabsorbent polymer 11 contained in the absorbent body 10 is 300 μm to 400 μm, and in contrast to this, the average particle diameter of the metal particles (aluminum particles) of the present embodiment is 3 μm to 4 μm, and even the maximum particle diameter is about 10 μm. In this way, the average particle diameter of the metal particles of the present embodiment is much smaller than the average particle diameter of the superabsorbent polymer 11. Furthermore, as a method of measuring the average particle diameter, a publicly known method can be used.

[0159] For example, in terms of the average particle diameter of the superabsorbent polymer 11, the following measurement can be performed on a plurality of sanitary napkins 1, and the average value of the average particle diameters obtained by the plurality of measurements (for example, N = 5 times) is calculated and compared.

[0160] (1) In a constant temperature and humidity chamber in which the temperature is 20°C ± 5°C and the humidity is 65% RH ± 5% RH, a digital microscope manufactured by Keyence Corporation (trade name: VHX-1000, zoom lens: x20 to x200, or an instrument equivalent thereto) and the attached software are prepared.

[0161] (2) A plurality of superabsorbent polymers 11 taken out from the sanitary napkin 1 as the object are left to stand in the above constant temperature and humidity chamber for 24 hours.

[0162] (3) The superabsorbent polymers 11 are photographed using the above digital microscope.

[0163] (4) The particle diameter of each high-absorbency polymer 11 means a circle equivalent diameter calculated from a projected area of a projection image of each high-absorbency polymer 11. Specifically, the projected area A of each high-absorbency polymer 11 is measured using the attached software, and a circle equivalent diameter CD (diameter) of each high-absorbency polymer 11 is calculated (CD = 2 x (A / π) 1 / 2 ).

[0164] (5) The average particle diameter of the high-absorbency polymer 11 means a median particle diameter in a particle size distribution (number basis). Specifically, a particle size distribution (number basis) of 1000 circle equivalent diameters CD of the high-absorbency polymer 11 is created using the attached software, a median particle diameter is determined from the particle size distribution (number basis), and is set as the average particle diameter.

[0165] In addition, as a method of measuring the particle diameter of the metal particles of the metallic ink, there are a microscope method, a sieve method, a sedimentation method, a centrifugal sedimentation method, an inertia method, an electromagnetic wave scattering method, a specific surface area method, and the like. For example, if a scanning electron microscope is used, it is possible to directly observe the diameter (outer diameter), shape, and fine structure of each particle. As for the measurement of the average particle diameter of the metal particles, there is no particular limitation, but, for example, it can be calculated by randomly selecting metal particles in a plurality of inks, measuring the diameter or the value of the major axis of each particle using an electron microscope, and finding the average value thereof. Alternatively, it can be that a laser diffraction type particle size distribution measuring instrument is used to measure a particle size distribution, the value at 50% of the particle size distribution (median particle diameter) is found, and is set as the average particle diameter.

[0166] As described above, the particle diameter of the metal particles contained in the first printed layer 71 is small, and is further covered by the second printed layer 72, so the particles are not easily seen (are not easily visually recognized). Thus, an impression that the particles (high-absorbency polymers 11) contained in the absorbent 10 are falling off is not left. In addition, the base material 42 of the article bag 41 is formed of a soft resin film. Thus, an impression that the sanitary napkin 1 housed in the packaging body 40 is soft is left, and an impression of being luxurious and high quality is left.

[0167] In addition, in the present embodiment, the average thickness of the first printed layer 71 is 5 μm (estimated value), which is larger (about twice) than the average thickness (2 μm to 3 μm) of the second printed layer 72. Further, the average thickness of the first printed layer 71 and the second printed layer 72 is the thickness after the ink is dried, and is inferred from the depth of the recesses (described later) of the intaglio. In addition, as described above, the average thickness of the first printed layer 71 is larger than the average thickness of the second printed layer 72. Figure 2As shown, the average thickness of the absorbent body 10 is greater than the average thickness of the surface sheet 2. The average thickness of the absorbent body 10 and the surface sheet 2 can be measured in the same manner as the average thickness of the aforementioned base material 42. In the case of the average thickness of the absorbent body 10, the thickness is measured at a plurality of sites separated from the compressed portion 20 and the folded portions Fl, F2, and the average value thereof is set as the average thickness.

[0168] In this way, the size relationship of the thicknesses of the first printed layer 71 and the second printed layer 72 is the same as the size relationship of the thicknesses of the absorbent body 10 and the surface sheet 2. Thus, the impression that the high-absorbency polymer 11 will not fall off before the package 40 is opened can be given, and the impression that the sanitary napkin 1 is a high-quality product can be left.

[0169] In addition, the maximum particle diameter of the metal particles contained in the first printed layer 71 is, for example, about 10 μm, and the average particle diameter of the high-absorbency polymer 11 contained in the absorbent body 10 is, as described above, 300 μm to 400 μm. In this way, it is preferable that the maximum particle diameter of the metal particles be smaller than the average particle diameter of the high-absorbency polymer 11.

[0170] Thus, the impression that the high-absorbency polymer 11 is less likely to fall off can be further left.

[0171] In addition, it is desirable that the average thickness of the transparent film layer 73 provided on the outer side in the thickness direction of the second printed layer 72 be smaller than the average thickness of the surface sheet 2 of the sanitary napkin 1, and it is preferable that the average thickness of the surface sheet 2 be greater than the average thickness of the core cover sheet 12.

[0172] By having the thinner transparent film layer 73 on the outer side of the second printed layer 72, the colors of the respective printed layers can be shown as they are, and not only the falling off of the metal particles but also the falling off of the ink can be suppressed, and thus a higher-quality impression can be left. In addition, in the absorbent article (sanitary napkin 1), the falling off of the high-absorbency polymer 11 can be prevented by the two layers of the core cover sheet 12 and the surface sheet 2.

[0173] In addition, as described above, the average thickness of the first printed layer 71 is greater than the average thickness of the second printed layer 72. It is preferable that the average thickness of the absorbent body 10 be greater than the average thickness of the back sheet 4 provided on the non-skin side of the absorbent body 10.

[0174] In this way, the relationship of the thicknesses (average thicknesses) of the first printed layer 71 containing the metal particles and the second printed layer 72 not containing the metal particles is the same as the relationship of the thicknesses (average thicknesses) of the absorbent body 10 containing the high-absorbency polymer 11 and the back sheet 4, and thus the impression that the high-absorbency polymer will not fall off before the package is opened can be given.

[0175] <Arrangement of the Respective Portions of the Bag 41>

[0176] The bag 41 has a tear line 44 formed by a plurality of holes 44a along its transverse direction. Preferably, the tear line 44 is located in a non-existent area Rb (i.e., where the first printing layer 71 is not provided).

[0177] Therefore, when the tear line 44 (multiple holes 44a) is formed and when the tear line 44 is torn, the metal particles of the first printed layer 71 can be prevented from falling off.

[0178] Additionally, preferably, the tear line 44 is provided at both ends of the longitudinal direction of the bag, which are the non-existent areas Rb.

[0179] Therefore, when the user pinches the end of the bag 41 and tears the easy-tear line 44 (to open the bag 41), they can feel its softness.

[0180] Furthermore, it is preferable that the sealing portion 43, formed by thermally fusing the inner surfaces of the substrate 42 together at the longitudinal end of the bag 41, is a non-existent region Rb.

[0181] Therefore, since there are no metal particles in the sealing part 43, the inner surfaces of the substrate 42 can be reliably thermally fused together.

[0182] In addition, such as Figure 9 As shown, a label 57 is provided on the pouch 41 (substrate 42) to indicate information related to the absorbed item (in this case, sanitary napkin 1) being stored. The label 57 contains information such as the manufacturer (or distributor), product name, and constituent materials in relatively small print. Preferably, the label 57 is located in a non-existent area Rb.

[0183] Therefore, since there are no metal particles in the marking 57, the contents can be easily read.

[0184] In addition, such as Figure 8 As shown, the bag 41 (substrate 42) is provided with a barcode 55 and a QR code 56 that record predetermined information. Preferably, the above codes are configured in a non-existent area Rb.

[0185] Therefore, it is possible to suppress the reduction in reading accuracy of the codes (barcode 55, QR code 56).

[0186] In addition, such as Figure 8 As shown, the bag 41 (substrate 42) has a pattern 54 indicating the sanitary napkin 1 being stored. This pattern 54 can be disposed in either the presence area Ra or the non-presence area Rb.

[0187] When the pattern 54 is configured in the area Ra, by including the first printing layer 71 (metal particles) in the pattern 54, the shape of the stored sanitary napkin 1 can be made conspicuous.

[0188] In the case where the pattern 54 is provided in the non-existing area Rb, the softness of the accommodated sanitary napkin 1 can be felt by making the pattern 54 free of the first print layer 71 (metal particles).

[0189] Further, it is preferable that the folding lines 42a, 42b (refer to Figure 6B , Figure 9 ) provided in the base material 42 are formed in the non-existing area Rb (where the first print layer 71 is not provided).

[0190] Thus, since the folding lines 42a, 42b are free of metal particles at the folding lines 42a, 42b, the folding lines 42a, 42b are easily bent and formed.

[0191] Further, the sanitary napkin 1 and the packaging member 31 are folded and accommodated in the pouch 41 in the state of the individual package 30 of Fig. 5 (refer to Figure 6B ). It is preferable that the area of the packaging member 31 in the folded state (the area of the individual package 30) is larger than the area of the existing area Ra of the pouch 41 in plan view.

[0192] By making the area of the folded packaging member 31 (including the sanitary napkin 1) larger than the area of the existing area Ra of the pouch 41, the hardness can not be easily felt when the package 40 is held.

[0193] Further, it is preferable that, inside the pouch 41, when the accommodated individual package 30 is brought close to the end portion of the pouch 41, the portion of the pouch 41 in the thickness direction which does not overlap the individual package 30 (for example, the range indicated by h in Figure 6B ) is the non-existing area Rb.

[0194] Thus, in the state where the individual package 30 is brought close to the end portion of the pouch 41, the portion of the pouch 41 in the thickness direction which does not overlap the individual package 30 can be easily bent, and the hardness can not be easily felt.

[0195] <About the printing method>

[0196] Figures 11A-11C is an explanatory view showing an example of a printing method. In Figures 11A-11C , the state (cross section) of the existing area Ra and the non-existing area Rb is shown.

[0197] Further, in the present embodiment, printing is sequentially performed inside the transparent film layer 73 formed on the outermost side of the pouch 41.

[0198] First, as shown in Figure 11AAs shown, a second printing layer 72 is formed by gravure printing using polyurethane ink containing pigment on top of the transparent film layer 73 (corresponding to the inner side in the state of the bag 41). The second printing layer 72 is formed in both the present region Ra and the non-present region Rb.

[0199] In this context, gravure printing refers to a method of printing text and images by using a gravure roller (gravure plate) with recessed ink pits on its surface to transfer ink only onto the object to be printed (in this case, a film). The depth and spacing of the ink pits can be used to control the printing quality, enabling high-resolution printing.

[0200] Next, as Figure 11B As shown, a first printing layer 71 is formed by gravure printing using polyurethane ink (metallic ink) containing metal particles (aluminum particles) and pigment (silver pigment) in a predetermined area (specifically, the area Ra) above the second printing layer 72 (in the state of the bag 41).

[0201] Furthermore, in this embodiment, the depth of the ink pits (depth of the recesses) of the gravure plate used to form the first printing layer 71 is set to approximately twice the depth of the ink pits of the gravure plate used to form the second printing layer 72. Thus, as described above, the average thickness of the first printing layer 71 is approximately twice the average thickness of the second printing layer 72.

[0202] Next, as Figure 11C As shown, on the second printed layer 72 (on the first printed layer 71 in the presence area Ra), the substrate 42 (a milky white PE film) that forms the innermost layer of the bag 41 is bonded using an adhesive or the like. This forms the film of the bag 41 of the encapsulation body 40.

[0203] Then, the formed film is processed in a manner consistent with the shape of the bag 41, fold lines 42a and 42b are provided, and a sealing part 43 and an easy-tear line 44 are formed, thereby forming the bag 41.

[0204] At this point, as described above, bending is facilitated by forming the fold lines 42a and 42b in the non-existent region Rb. Furthermore, by making the tear line 44 a non-existent region Rb, metal particles will not fall out when the hole 44a of the tear line 44 is formed. Additionally, by making the sealing portion 43 a non-existent region Rb, it is free of metal particles, thus enabling reliable heat fusion.

[0205] Further, the structure of the sheet, the printing method are not limited to the above. For example, it can be a structure in which the transparent film layer 73 is not provided. In this case, it can be that the first printed layer 71 is formed using a metallic ink in a manner of gravure printing in a predetermined region (presence region Ra) of the outer side surface of the base material 42, and the second printed layer 72 is formed thereon (the entire outer side surface) in a manner of gravure printing. In addition, the printing method is not limited to gravure printing, and printing can be performed using other printing methods (for example, flexographic printing). In addition, the printing methods of the first printed layer 71 and the second printed layer 72 can be different.

[0206] ==Other Embodiments==

[0207] The embodiments of the present application have been described above, but the above-described embodiments are intended to make the understanding of the present application easy, and are not intended to limit the interpretation of the present application. In addition, it is needless to say that the present application can be changed and improved without departing from the gist thereof, and the present application includes equivalents thereof.

[0208] In the foregoing embodiment, the outer side surface of the bag 41 (base material 42) of the package 40 is subjected to printing (metal printing) including metal particles, but is not limited thereto. For example, the same printing can be performed on the outer side surface of the packaging member 31 of the individual package 30.

[0209] Specifically, it can be that the region R1 shown in FIG. 5 is formed (printed) similarly to the presence region Ra of the foregoing embodiment, and the region R2 shown in FIG. 5 is formed similarly to the non-presence region Rb of the foregoing embodiment.

[0210] In this case, the same effects as in the case of the bag 41 of the package 40 can be obtained. That is, in the region R1, the first printed layer 71 including metal particles is covered with the second printed layer 72 not including metal particles, and thus a luxurious impression of metal printing can be left, and since the particles of the metal particles are not easily seen, a high-quality impression can be left. In addition, the diameter of the metal particles is small, and the second printed layer 72 is further provided, and thus the particles are not easily seen, and thus an impression that the high-absorbency polymer 11 of the sanitary napkin 1 does not come off can be left. In addition, since the packaging member 31 is formed of a soft resin film (a PE film, a PET film, or a PP film), a soft impression can be left.

Claims

1. A package of absorbent articles, characterized by comprising: the package of absorbent articles has: an individual package having an absorbent article and a package member individually packaging the absorbent article; and a bag containing a plurality of the individual packages, the absorbent article has an absorbent body containing a superabsorbent polymer and a surface sheet provided on a skin side of the absorbent body, the bag has a polyethylene film, a polyethylene terephthalate film, or a polypropylene film as a base material, a first printed layer containing metal particles is provided on an outer surface side of the base material, a second printed layer not containing metal particles is provided on an outer side in a thickness direction of the first printed layer, an average particle diameter of the metal particles is smaller than an average particle diameter of the superabsorbent polymer.

2. The package of absorbent articles according to claim 1, characterized in that: an average thickness of the first printed layer is greater than an average thickness of the second printed layer, an average thickness of the absorbent body is greater than an average thickness of the surface sheet.

3. The package of absorbent articles according to claim 1, characterized in that: a maximum particle diameter of the metal particles is smaller than the average particle diameter of the superabsorbent polymer.

4. The package of absorbent articles according to claim 1, characterized in that: a transparent film layer is provided on an outer side in the thickness direction of the second printed layer, a core wrap sheet is provided on an outer side of the absorbent body of the absorbent article, an average thickness of the transparent film layer is smaller than an average thickness of the surface sheet, the average thickness of the surface sheet is greater than an average thickness of the core wrap sheet.

5. The package of absorbent articles according to claim 1, characterized in that: a back sheet is provided on a non-skin side of the absorbent body, the average thickness of the first printed layer is greater than the average thickness of the second printed layer, the average thickness of the absorbent body is greater than an average thickness of the back sheet.

6. The package of absorbent articles according to any one of claims 1 to 5, characterized in that: the bag has a presence region in which the first printed layer is present and a non-presence region in which the first printed layer is not present.

7. The package of absorbent articles according to claim 6, characterized in that: a tear line formed by a plurality of holes is provided in the bag, the tear line is disposed in the non-presence region.

8. The package of absorbent articles according to claim 6, characterized in that: a tear line formed by a plurality of holes is provided in the bag, the tear line is provided at an end portion of the bag, the end portion is the non-presence region.

9. The package of absorbent articles according to claim 6, characterized in that: a seal portion in which inner surfaces of the base material are heat-welded to each other is present, the seal portion is the non-presence region.

10. The package of absorbent articles according to claim 6, characterized in that: an identification indicating a manufacturer that manufactures the absorbent article or a seller that sells the absorbent article is provided in the base material, the identification is disposed in the non-presence region.

11. The package of absorbent articles according to claim 6, characterized in that: an encoding in which predetermined information is recorded is provided in the base material, The code is arranged in the non-existing area.

12. The package of absorbent articles according to claim 6, wherein a pattern indicating the absorbent article accommodated is provided on the base material, the pattern is arranged in the existing area.

13. The package of absorbent articles according to claim 6, wherein a pattern indicating the absorbent article accommodated is provided on the base material, the pattern is arranged in the non-existing area.

14. The package of absorbent articles according to claim 6, wherein a folding line is provided on the base material, the folding line is formed in the non-existing area.

15. The package of absorbent articles according to claim 6, wherein the absorbent article and the wrapper are accommodated in the pouch in a folded state, the area of the wrapper in the folded state is larger than the area of the existing area of the pouch when viewed from above.

16. The package of absorbent articles according to claim 6, wherein in the interior of the pouch, when the individual package accommodated is brought close to the end portion of the pouch, the portion of the pouch in the thickness direction that does not overlap with the individual package is the non-existing area.

17. An individual package of absorbent articles, wherein the individual package of absorbent articles comprises an absorbent article and a wrapper that individually packages the absorbent article, the absorbent article comprises an absorbent body containing a superabsorbent polymer and a surface sheet provided on the skin side of the absorbent body, the wrapper comprises a polyethylene film, a polyethylene terephthalate film, or a polypropylene film as a base material, a first printed layer containing metal particles is provided on the outer surface side of the base material, a second printed layer not containing metal particles is provided on the outer side in the thickness direction of the first printed layer, the average particle diameter of the metal particles is smaller than the average particle diameter of the superabsorbent polymer.

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