Absorbent article and absorbent article set

Abstract

An absorbent article according to an embodiment of the present invention is provided with: a main body section which extends in the longitudinal direction between a back-side end and a ventral end and which comprises a front surface sheet disposed on the skin surface side of a wearer, a back surface sheet disposed on the non-skin surface side on the opposite side from the skin surface side, and an absorbent body disposed between the front surface sheet and the back surface sheet; and a pair of leak-proof gathers which can be raised with respect to the surface sheet along a pair of raised lines extending in the longitudinal direction at positions spaced apart from each other in a transverse direction perpendicular to the longitudinal direction, the main body portion having a guide mark for guiding a position at which the hip of the wearer should be arranged in the longitudinal direction, and a pair of leak-proof gathers which can be raised with respect to the surface sheet along a pair of raised lines extending in the longitudinal direction at positions spaced apart from each other in the transverse direction perpendicular to the longitudinal direction. The guide mark includes: an inner portion disposed between a pair of standing lines; and an outer portion that is disposed on the outer side of the pair of raised lines in a lateral direction perpendicular to the longitudinal direction, and that can be visually recognized from the skin surface side with the pair of leak-proof gathers interposed therebetween.

Description

Technical Field

[0001] This disclosure relates to absorbent articles and groups of absorbent articles. Background Technology

[0002] A typical strap-type absorbent garment comprises an absorbent body including a front panel, a back panel, and an absorbent core, and a pair of hook-and-loop fasteners extending outward from the absorbent body. When wearing such an absorbent garment, the wearer lies supine on the unfolded absorbent garment, pulls the garment up towards the abdomen through the wearer's crotch, and secures the pair of hook-and-loop fasteners to the fastening portion located on the abdomen of the absorbent body.

[0003] If the wearer lies down improperly when wearing absorbent clothing, the two ends of the absorbent clothing in the longitudinal direction will be misaligned in the vertical direction, making it impossible to properly secure the hook and loop fasteners. If the absorbent clothing is misaligned in the longitudinal direction, gaps can easily form around the wearer's legs and waist, leading to urinary leakage. To solve this problem, patent documents 1-3 disclose diapers with markings on the surface to guide the wearer's buttocks position.

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: Japanese Patent Application Publication No. 2014-230716

[0007] Patent Document 2: Korean Patent Publication No. 2017-0001847

[0008] Patent Document 3: International Publication No. 2024 / 005031 Summary of the Invention

[0009] The problem the invention aims to solve

[0010] There are situations where, in caregiving or medical settings, when dressing an adult with physical disabilities in absorbent clothing, an absorbent pad is placed on top of the absorbent clothing before it is worn. If an absorbent pad is used simultaneously, only the pad needs to be changed when the wearer urinates, allowing the absorbent clothing to be reused; therefore, this is advantageous from a cost and convenience perspective. On the other hand, in the absorbent clothing described in Patent Documents 1-3, if an absorbent pad is placed on top, the markings on the absorbent clothing are obscured and become invisible, making it difficult to align the wearer's buttocks with the intended position.

[0011] Therefore, the purpose of this disclosure is to provide absorbent items and sets of absorbent items that can be easily worn in the correct position.

[0012] Solution for solving the problem

[0013] An absorbent article comprises: a main body extending longitudinally between a back end and a ventral end, including a surface sheet disposed on the skin side of the wearer, a back sheet disposed on a non-skin side opposite to the skin side, and an absorbent body disposed between the surface sheet and the back sheet; and a pair of leak-proof pleats that are respectively erected relative to the surface sheet along a pair of upright lines extending longitudinally at positions separated from each other in a transverse direction perpendicular to the longitudinal direction. The main body has guide marks for guiding the position where the article should be placed on the wearer's buttocks. The guide marks include: an inner portion disposed between the pair of upright lines; and an outer portion disposed outside the pair of upright lines in a transverse direction perpendicular to the longitudinal direction, and are visually identifiable from the skin side across the pair of leak-proof pleats.

[0014] Typically, when using absorbent pads, to prevent leakage, the absorbent pad is positioned inside the pair of leak-proof pleats of the absorbent garment that rise along a pair of pleats. In the absorbent garment of this design, the guide marker includes: an inner portion positioned between the pair of pleats; and an outer portion positioned outside the pair of pleats in a transverse direction perpendicular to the longitudinal direction, and visually identifiable from the skin side through the pair of leak-proof pleats. Therefore, when the absorbent pad is positioned inside the pair of leak-proof pleats of the absorbent garment, the inner portion of the guide marker is covered by the absorbent pad, while the outer portion of the guide marker is visually identifiable from the skin side through the pair of leak-proof pleats. Thus, even when using absorbent pads simultaneously, the wearer's buttocks can be aligned using the position of the guide marker as a reference, making it easy to wear the absorbent garment in the correct position.

[0015] Alternatively, a pair of leak-proof pleats may each include side panels that cover both sides of the surface panel in the lateral direction, and the surface panel and side panels are bonded together outside a pair of upright lines. In this case, since gaps can be prevented between the surface panel and the side panels, the visual recognizability of the outer portion of the guide mark can be improved.

[0016] Alternatively, the guide markers can have a different color than the surface sheet. In this case, the visual recognizability of the guide markers can be improved.

[0017] Alternatively, the side panel may include a dorsal fixing portion, a ventral fixing portion, and an upright portion disposed longitudinally between the dorsal and ventral fixing portions. The dorsal and ventral fixing portions are engaged with the surface panel in a state of tilting inward in the lateral direction, while the upright portion is not engaged relative to the surface panel. By engaging the dorsal and ventral fixing portions with the surface panel in a state of tilting inward, the upright portion is turned inward in the non-erected state. Therefore, it is possible to prevent the upright portion from covering the outer portion of the guide mark in the non-erected state, thereby reducing the visual recognizability of that outer portion.

[0018] Alternatively, in the longitudinal direction, the guide mark is positioned on the ventral end relative to the dorsal fixing portion. In this case, the visual recognizability of the guide mark can be improved.

[0019] Alternatively, it may also include a pair of leg-circle telescopic members, which are disposed on the non-skin-surface side relative to the absorbent body in the thickness direction of the main body and are capable of telescopic movement in the longitudinal direction. The outer portion of the guide mark is disposed between the pair of leg-circle telescopic members. By positioning the outer portion of the guide mark in a position that does not overlap with the pair of leg-circle telescopic members, wrinkles on the outer portion of the guide mark when the pair of leg-circle telescopic members contract can be suppressed. Therefore, the reduction in the visual recognizability of the guide mark can be suppressed.

[0020] Alternatively, a pair of leg-length telescopic members are fixed to the main body between a first end disposed on the dorsal side and a second end disposed on the ventral side, respectively, and at least a portion of the outer side of the guide mark is disposed on the dorsal side in the longitudinal direction relative to the first ends of the pair of leg-length telescopic members. In this case, wrinkles on the guide mark when the pair of leg-length telescopic members contract can be suppressed. Therefore, the reduction in visual recognizability of the guide mark can be suppressed.

[0021] Alternatively, the absorbent may include an inner region disposed between a pair of upright lines and an outer region disposed outside the pair of upright lines in the lateral direction, such that when viewed from the skin side, the outer portion of the guide mark overlaps with the outer region of the absorbent. By overlapping the outer portion of the guide mark with the outer region of the absorbent, which has high rigidity, wrinkles on the outer portion of the guide mark can be suppressed, and the visual recognizability of the outer portion of the guide mark can be improved.

[0022] Alternatively, the absorbent may include an embossed area, wherein, when viewed from the skin side, at least a portion of the guide mark overlaps with the embossed area. Since wrinkles are less likely to form in the rigid embossed area, the visual recognizability of the guide mark can be improved by arranging the guide mark in an overlapping manner with the embossed area.

[0023] Alternatively, the guide mark may include a pair of outer portions, each positioned laterally outside a pair of raised lines. In this case, when the absorbent pad is placed inside the pair of leak-proof pleats of the absorbent article, the outer portions of the guide mark can be visually identified from any direction in the lateral direction, across the pair of leak-proof pleats. This allows for easy and accurate placement of the absorbent article.

[0024] Alternatively, in the longitudinal direction, the two outer portions are positioned identically. In this case, regardless of which outer portion is used as a reference, the wearer's buttocks are aligned in the same position. Therefore, it is easy to put the absorbent item on accurately.

[0025] Alternatively, the inner and outer portions of the guide mark can be continuous. In this case, the guide mark can be designed as a single unit.

[0026] Alternatively, the width of the outer portion of the guide mark along the longitudinal direction can be more than 50% of the total width of the guide mark along the longitudinal direction. By making the width of the outer portion of the guide mark larger, the visual recognizability of the outer portion of the guide mark can be improved.

[0027] Alternatively, when viewed from the skin side, the guide mark may have an asymmetrical shape relative to the center line in the lateral direction of the main body.

[0028] One solution comprises: the aforementioned absorbent article; and an absorbent pad, which is used by overlapping the absorbent article from the skin side. The absorbent pad includes a maximum width portion whose width in the lateral direction is the maximum width. When the absorbent pad is disposed on the absorbent article such that the center of the absorbent article and the center of the absorbent pad overlap, the position of the maximum width portion of the absorbent pad in the longitudinal direction is configured to overlap with the position in the longitudinal direction of the guide mark.

[0029] In the absorbent article group of this solution, since the longitudinal position of the maximum width portion of the absorbent pad overlaps with the position of the guide mark in the longitudinal direction when the absorbent pad is placed on the absorbent article, the maximum width portion of the absorbent pad can be placed near the buttocks where urine easily adheres. Therefore, urine can be efficiently absorbed in the maximum width portion of the absorbent pad, thus suppressing urinary leakage.

[0030] Alternatively, the absorbent pad may have guide marks for guiding the position of the wearer's buttocks in the longitudinal direction. When the absorbent pad is placed on the absorbent article such that the center of the absorbent article and the center of the absorbent pad overlap, the inner portions of the guide marks of the absorbent pad and the guide marks of the absorbent article are configured to overlap at least partially. In this case, when the absorbent pad is placed on the absorbent article, the wearer's buttocks can be positioned correctly.

[0031] The effects of the invention

[0032] According to the various schemes and embodiments of this disclosure, it is possible to easily wear absorbent articles in the correct position. Attached Figure Description

[0033] Figure 1 This is a top view obtained by observing an absorbent article from the skin side in one embodiment.

[0034] Figure 2 Yes Figure 1 The absorbent material shown is a top view obtained by observing it from the non-skin side.

[0035] Figure 3 It is along Figure 1 A cross-sectional view of the absorbent material shown along line AA.

[0036] Figure 4 It is along Figure 1 A cross-sectional view of the absorbent material shown along the BB line.

[0037] Figure 5 This is a top view of the absorbent core.

[0038] Figure 6 It is a diagram that enlarges the area around the guide marker.

[0039] Figure 7 This is a schematic diagram of a deformable absorbent material.

[0040] Figure 8 It is a rough representation of a folded absorbent material.

[0041] Figure 9 This is a diagram showing a variation of the guide mark.

[0042] Figure 10 This is a diagram showing a variation of the guide mark.

[0043] Figure 11 This is a diagram showing a variation of the guide mark.

[0044] Figure 12 This is a top view of the absorbent pad taken from the side of the skin.

[0045] Figure 13 This is a top view of the absorbent material group observed from the skin side. Detailed Implementation

[0046] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. Furthermore, in the following description, the same or equivalent elements will be labeled with the same reference numerals, and descriptions will not be repeated. The scale of the drawings may not necessarily be the same as that of the description.

[0047] Figure 1 This is a top view obtained by observing the absorbent article 1 from the skin side in one embodiment. Figure 2 This is a top view of the absorbent material 1, observed from the non-skin side. Figure 3 It is along Figure 1 A schematic cross-sectional view of absorbent material 1 along line AA. Figure 4 It is along Figure 1 A schematic cross-sectional view of the absorbent material 1 with BB lines shown. Figure 1 and Figure 2 The image shows an absorbent article 1 in its elongated state, stretched to a point where no wrinkles have formed. Figure 3 as well as Figure 4 In the sectional view shown, the components are depicted separately in the thickness direction for ease of explanation, but in the actual product they are in contact in the thickness direction. Unless otherwise specified, the following description refers to the positional relationships in the elongated state.

[0048] Figures 1-4 The absorbent item 1 shown is a disposable diaper in a belt style. The absorbent item 1 can be either a baby diaper or an adult diaper. In the following description, the person wearing the absorbent item 1 is referred to as the "wearer," and the person who puts the absorbent item 1 on the wearer is referred to as the "user." Typically, the wearer is a child or a caregiver, and the user is a parent or caregiver.

[0049] like Figure 1 As shown, the absorbent article 1 extends in a lateral direction X, which is positioned along the wearer's waist, and in a longitudinal direction Y, which connects the wearer's abdomen and back. The lateral direction X corresponds to the width direction of the absorbent article 1, and the longitudinal direction Y corresponds to the length direction of the absorbent article 1. The lateral direction X and the longitudinal direction Y are perpendicular to each other. The thickness direction Z is perpendicular to both the lateral direction X and the longitudinal direction Y, including the skin-side Z1 facing the wearer's skin when worn, and the non-skin-side Z2 facing the opposite side of the wearer's skin when worn. The absorbent article 1 is worn to cover the wearer's abdomen, groin, and back.

[0050] The absorbent article 1 comprises a main body 2. The main body 2 has a ventral end 2F located on one side in the longitudinal direction Y and a dorsal end 2R located on the other side in the longitudinal direction Y. The ventral end 2F is positioned along the wearer's abdomen in the waist direction when worn, and the dorsal end 2R is positioned along the wearer's back in the waist direction when worn. The distance in the longitudinal direction Y between the ventral end 2F and the dorsal end 2R is the total length (maximum length) of the main body 2. In the following description, the direction from the dorsal end 2R to the ventral end 2F is referred to as the ventral side, and the direction from the ventral end 2F to the dorsal end 2R is referred to as the dorsal side.

[0051] The main body 2 has a back region 51 located on the back side, a ventral region 53 located on the abdomen side, and a crotch region 52 located in the longitudinal direction Y between the back region 51 and the ventral region 53. The back region 51 is the region between the first fold line FL1 (described later) and the back end 2R. The ventral region 53 is the region between the second fold line FL2 (described later) and the ventral end 2F. The crotch region 52 is the region between the first fold line FL1 and the second fold line FL2. The back region 51 covers the wearer's back when worn, and the ventral region 53 covers the wearer's abdomen when worn. The back region 51, the crotch region 52, and the ventral region 53 are arranged in the above order from the back side.

[0052] A pair of back wings 15 extending outward in the lateral direction X are provided on the back side region 51 of the main body 2. The pair of back wings 15 are composed of the side panels 12 and the back panel 20, which will be described later. The pair of back wings 15 are positioned along the wearer's waist when worn. Each pair of back wings 15 has a side edge 15a in the lateral direction X. The maximum width W1 in the lateral direction X between the side edges 15a of the pair of back wings 15 is greater than the maximum width in the lateral direction X of the crotch region 52. The maximum width W1 of the pair of back wings 15 is equivalent to the maximum width of the main body 2.

[0053] The side edges 15a of a pair of dorsal wing portions 15 have a widened portion 15c and a straight portion 15s. The widened portion 15c bends outward in the lateral direction X as it moves toward the dorsal side, connecting the side edge of the crotch region 52 and the straight portion 15s. Alternatively, the widened portion 15c may extend outward in a straight or stepped manner in the lateral direction X as it moves toward the dorsal side, in a direction inclined relative to the longitudinal direction Y. The straight portion 15s extends straight in the longitudinal direction Y between the widened portion 15c and the dorsal end 2R. The width in the lateral direction X between the straight portions 15s corresponds to the maximum width W1 between the side edges 15a of the pair of dorsal wing portions 15.

[0054] In one embodiment, the absorbent article 1 has one or more pairs of hook and loop fasteners. Figure 1 In the illustrated embodiment, the absorbent article 1 includes a pair of first hook and loop fasteners 90A and a pair of second hook and loop fasteners 90B. The pair of first hook and loop fasteners 90A and the pair of second hook and loop fasteners 90B are respectively disposed on a pair of back-side wings 15. The pair of first hook and loop fasteners 90A are positioned on the back side relative to the pair of second hook and loop fasteners 90B. The pair of first hook and loop fasteners 90A and the pair of second hook and loop fasteners 90B are positioned on the back side in the longitudinal direction Y relative to the guide mark 60 described later.

[0055] A pair of first hook-and-loop fasteners 90A and a pair of second hook-and-loop fasteners 90B extend outward in the lateral direction X from the side edge 15a of a pair of back wings 15. Each pair of first hook-and-loop fasteners 90A and a pair of second hook-and-loop fasteners 90B has an engaging portion 91 and a substrate sheet 92. The substrate sheet 92 is engaged with the pair of back wings 15. The engaging portion 91 is provided on the skin-side Z1 surface of the substrate sheet 92. The engaging portion 91 is, for example, a mechanical fastener, configured to engage with the back sheet 20 of the main body 2 from the non-skin-side Z2 side.

[0056] A pair of ventral wings 17 extending outward in the lateral direction X are provided on the ventral region 53 of the main body 2. The pair of ventral wings 17 are arranged along the wearer's waist when worn. Each pair of ventral wings 17 has a side edge 17a in the lateral direction X. The maximum width W2 between the side edges 17a of the pair of ventral wings 17 in the lateral direction X is greater than the maximum width in the lateral direction X of the crotch region 52.

[0057] The side edges 17a of the pair of ventral wings 17 have a widened portion 17c and a straight portion 17s. The widened portion 17c extends outward in the lateral direction X toward the ventral side, connecting the side edge of the crotch region 52 and the straight portion 17s. The straight portion 17s extends linearly in the longitudinal direction Y between the widened portion 17c and the ventral end 2F. The width in the lateral direction X between the straight portions 17s is equivalent to the maximum width W2 between the side edges 17a of the pair of ventral wings 17. Alternatively, the length of the straight portion 15s of the pair of dorsal wings 15 in the longitudinal direction Y may be longer than the length of the straight portion 17s of the pair of ventral wings 17 in the longitudinal direction Y. The main body 2 has a shape that narrows in the crotch region 52.

[0058] like Figures 1-4 As shown, the main body 2 includes a surface sheet 10, a back sheet 20, and an absorbent body 30. The surface sheet 10 forms the surface of the main body 2 that contacts the wearer and is disposed on the skin-side Z1. The surface sheet 10 is, for example, made of a liquid-permeable nonwoven fabric that allows the wearer's urine to pass through towards the absorbent body 30. Examples of nonwoven fabrics constituting the surface sheet 10 include hot-air nonwoven fabrics, spunbond nonwoven fabrics, or dot-bonded nonwoven fabrics.

[0059] The back panel 20 forms the outer side of the main body 2 when worn, positioned on the non-skin side Z2. The back panel 20 includes a liquid-impermeable back film 21 and a back nonwoven fabric 22 located further along the non-skin side Z2 than the back film 21. Alternatively, it could be, as... Figure 3 As shown, the width of the back film 21 in the lateral direction X is shorter than the width of the back nonwoven fabric 22 in the lateral direction X, and the back nonwoven fabric 22 extends to both sides of the back film 21 in the lateral direction X. The back nonwoven fabric 22 constitutes the outermost layer of the absorbent article 1.

[0060] like Figure 3 and Figure 4 As shown, the absorbent 30 includes an absorbent core 31 containing pulp and a superabsorbent polymer (SAP), and a core-cladding layer 32 covering the surface of the absorbent core 31. The pulp for the absorbent core 31 can be, for example, chemical pulp, cellulose fibers, rayon, cellulose acetate, or other cellulose fibers. The SAP can be, for example, a starch-based, acrylic-based, or amino acid-based granular or fibrous polymer. The core-cladding layer 32 covers the upper surface of the absorbent core 31 opposite to the surface sheet 10 and the lower surface of the absorbent core 31 opposite to the back sheet 20. The absorbent core 31 is arranged across the back region 51, the crotch region 52, and the ventral region 53.

[0061] Figure 5 This is a top view of the absorbent core 31, observed from the skin's side (Z1). (Example) Figure 5 As shown, in one embodiment, the absorbent core 31 includes a back portion 33 disposed in the back region 51, a crotch portion 34 disposed in the crotch region 52, and a ventral portion 35 disposed in the ventral region 53. The back portion 33 is disposed on the back side closer to the centerline CL1 in the longitudinal direction Y of the main body portion 2, and the ventral portion 35 is disposed on the ventral side closer to the centerline CL1 in the longitudinal direction Y of the main body portion 2. The crotch portion 34 is disposed between the back portion 33 and the ventral portion 35. The absorbent core 31 has an hourglass-shaped planar shape that is wide in the back portion 33 and the ventral portion 35 and narrows in the crotch portion 34.

[0062] The maximum width w1 of the dorsal side portion 33 in the transverse direction X is greater than the maximum width w2 of the ventral side portion 35 in the transverse direction X. The maximum width w1 of the dorsal side portion 33 is equivalent to the maximum width of the absorbent core 31. The dorsal side portion 33 has two side edges 33a in the transverse direction X. The two side edges 33a each include a widening portion 33w and a narrowing portion 33n. The widening portion 33w of the two side edges 33a bends outward in the transverse direction X as it approaches the dorsal end 31R of the absorbent core 31. The narrowing portion 33n of the two side edges 33a bends inward in the transverse direction X as it approaches the dorsal end 31R of the absorbent core 31. The narrowing portion 33n connects the widening portion 33w and the dorsal end 31R of the absorbent core 31.

[0063] The maximum width w2 of the ventral portion 35 in the transverse direction X is greater than the maximum width of the crotch portion 34 in the transverse direction X. The ventral portion 35 has two side edges 35a in the transverse direction X. Each side edge 35a includes a widening portion 35w and a narrowing portion 35n. The widening portion 35w of the side edges 35a bends outward in the transverse direction X as it approaches the ventral end 31F of the absorbent core 31. The narrowing portion 35n of the side edges 35a bends inward in the transverse direction X as it approaches the ventral end 31F of the absorbent core 31. The narrowing portion 35n connects the widening portion 35w and the ventral end 31F of the absorbent core 31.

[0064] The crotch portion 34 includes a narrow portion 34n with the narrowest width in the transverse direction X. The width w3 of the narrow portion 34n is smaller than the width w4 of the dorsal end 31R of the absorbent core 31 and the width w5 of the ventral end 31F of the absorbent core 31. The minimum width of the crotch portion 34, i.e., the width w3 of the narrow portion 34n, is equivalent to the minimum width of the absorbent core 31. The crotch portion 34 has two side edges 34a in the transverse direction X. The side edges 34a curve inward in the transverse direction X as they approach the narrow portion 34n from the boundary between the dorsal portion 33 and the crotch portion 34. Similarly, the side edges 34a curve inward in the transverse direction X as they approach the narrow portion 34n from the boundary between the ventral portion 35 and the crotch portion 34. Alternatively, the width w4 of the dorsal end 31R and the width w5 of the ventral end 31F may be smaller than the maximum width w1 of the dorsal portion 33 and the maximum width w2 of the ventral portion 35.

[0065] It could also be, such as Figures 3-5As shown, the absorber 30 includes a low weight-per-unit area region 30l and a high weight-per-unit area region 30h. The high weight-per-unit area region 30h is a generally elliptical region formed in the center of the absorber 30. The low weight-per-unit area region 30l is formed in a manner that surrounds the high weight-per-unit area region 30h. The dorsal end (the part closest to the dorsal side) of the boundary between the high weight-per-unit area region 30h and the low weight-per-unit area region 30l is disposed on the dorsal side relative to the first fold line FL1. Alternatively, the dorsal end of the boundary between the high weight-per-unit area region 30h and the low weight-per-unit area region 30l may be disposed on the dorsal side relative to the first reference line R1 described later. The ventral end (the part closest to the ventral side) of the boundary between the high weight-per-unit area region 30h and the low weight-per-unit area region 30l is disposed on the ventral side closer to the second fold line FL2.

[0066] The absorber 30 has a greater area weight per unit area in the high area weight region 30h than in the low area weight region 30l. For example, the amount of SAP per unit area in the high area weight region 30h is greater than the amount of SAP per unit area in the low area weight region 30l. More specifically, the high area weight region 30h and the low area weight region 30l may each have one or more absorber layers 36 containing SAP, and the number of absorber layers 36 in the high area weight region 30h is greater than the number of absorber layers 36 in the low area weight region 30l. Figure 4 In the illustrated embodiment, the high unit area weight region 30h has two absorbent layers 36, and the low unit area weight region 30l has one absorbent layer 36. Therefore, the water retention capacity of the high unit area weight region 30h per unit area is greater than that of the low unit area weight region 30l per unit area. Alternatively, the unit area weight of the high unit area weight region 30h may be substantially uniform in the lateral direction X.

[0067] Alternatively, in one embodiment, the absorber 30 includes an embossed region, which is formed on its surface by performing an embossing process. The embossed region is formed partially or entirely on the absorber 30.

[0068] In one embodiment, the absorbent article 1 includes a pair of upright leak-proof pleats 80 disposed on the skin-side of the surface sheet 10. The leak-proof pleats 80 are upright on the outer side of the absorbent body 30 in the transverse direction X to suppress leakage of urine excreted into the absorbent body 30 in the transverse direction X. In one embodiment, each pair of leak-proof pleats 80 includes side panels 12 and a telescopic member 13. The pair of side panels 12 are formed, for example, from a nonwoven fabric with waterproof or hydrophobic properties, and cover the side portion of the surface sheet 10 in the X direction from the skin-side Z1. The pair of side panels 12 are disposed separately from each other in the transverse direction X, extending over the entire area of ​​the main body 2 in the longitudinal direction Y between the ventral end 2F and the dorsal end 2R. Figure 3 As shown, the outer edge of the side piece 12 in the transverse direction X coincides with the outer edge of the back nonwoven fabric 22 in the transverse direction X, and together with the outer edge of the back nonwoven fabric 22, forms the side edge of the main body 2. Furthermore, as... Figure 3 As shown, the inner portion of each side panel 12 in the lateral direction X is folded back towards the non-skin side Z2. A telescopic member 13 extending in the longitudinal direction Y is disposed between the folded side panels 12. The telescopic member 13 is, for example, an elastic band that provides elasticity in the longitudinal direction Y to the main body 2.

[0069] A pair of leak-proof pleats 80 each include an upright portion 81 that is erected by the contraction of the telescopic member 13, a transverse fixing portion 82 that serves as the erection fulcrum in the transverse direction X of the upright portion 81, and a longitudinal fixing portion 83 that serves as the erection fulcrum in the longitudinal direction Y of the upright portion 81. The upright portion 81, the transverse fixing portion 82, and the longitudinal fixing portion 83 are formed by side pieces 12. The upright portion 81 is the part of the side piece 12 that is not engaged with the surface piece 10, and the telescopic member 13 in an extended state is disposed in the upright portion 81.

[0070] The lateral fixing portion 82 is the part of the side piece 12 that is fixed to the surface piece 10 using a hot melt adhesive or the like. The lateral fixing portion 82 is formed in the entire area of ​​the longitudinal direction Y of the main body portion 2 at a position further outward in the lateral direction X than the upright portion 81. An upright line 80a, which serves as an upright fulcrum in the lateral direction X of the upright portion 81, is formed at the boundary between the upright portion 81 and the lateral fixing portion 82. The upright lines 80a of a pair of leak-proof pleats 80 extend in the longitudinal direction Y at a position where they separate from each other in the lateral direction X. The side piece 12 is bonded to the surface piece 10 using a hot melt adhesive or the like outside the lateral direction X of the pair of upright lines 80a.

[0071] The longitudinal fixing portion 83 is the part of the side piece 12 that is joined to the surface piece 10 using a hot-melt adhesive or the like, and it becomes the erection fulcrum in the longitudinal direction Y of the erected portion 81. In one embodiment, the longitudinal fixing portion 83 includes a ventral fixing portion 83F and a dorsal fixing portion 83R. The ventral fixing portion 83F is formed at a position inside the transverse direction X of the transverse fixing portion 82 and is located ventrally relative to the centerline CL1 in the longitudinal direction Y of the main body portion 2. The ventral fixing portion 83F becomes the erection fulcrum on the ventral side of the erected portion 81. The dorsal fixing portion 83R is formed at a position inside the transverse direction X of the transverse fixing portion 82 and is located dorsally relative to the centerline CL1 in the longitudinal direction Y of the main body portion 2. The dorsal fixing portion 83R becomes the erection fulcrum on the dorsal side of the erected portion 81. In the ventral fixation part 83F and the dorsal fixation part 83R, the side plate 12 is engaged with the surface plate 10 in a state of tilting inward in the lateral direction X.

[0072] The upright portion 81 is positioned inside the transverse direction X between the ventral fixing portion 83F and the dorsal fixing portion 83R, relative to the transverse fixing portion 82. The upright portion 81 is a non-joined portion of the side plate 12 relative to the surface plate 10. A telescopic member 13 extending in the longitudinal direction Y is connected to the upright portion 81. By contracting the telescopic member 13 in the longitudinal direction Y, the main body 2 deforms in a closed direction. Through this deformation, the upright portion 81 stands upright between the ventral fixing portion 83F and the dorsal fixing portion 83R, starting from the upright line 80a. On the other hand, in the ventral fixing portion 83F and the dorsal fixing portion 83R, the side plate 12 is joined to the surface plate 10 in a state of tilting inward in the transverse direction X, so the upright portion 81 tilts inward in the transverse direction X in its extended state. The upright portion 81 prevents leakage in the transverse direction X by standing upright starting from a pair of upright lines 80a.

[0073] like Figure 1 As shown, the absorbent article 1 also includes a pair of leg-circle telescopic members 40 capable of stretching and contracting along the longitudinal direction Y. The pair of leg-circle telescopic members 40 are disposed on the outer side of the telescopic member 13 in the transverse direction X. The pair of leg-circle telescopic members 40 extend along the longitudinal direction Y between a first end 40r and a second end 40f, and are fixed to the main body 2. The first end 40r of the leg-circle telescopic member 40 is disposed in the dorsal region 51, and the second end 40f of the leg-circle telescopic member 40 is disposed in the ventral region 53. The leg-circle telescopic members 40 are, for example, made of a stretchable material such as rubber or spandex that can contract along its length. Alternatively, they may be, as... Figure 3As shown, a pair of leg-circle stretching members 40 are positioned on the non-skin-surface side Z2 relative to the absorbent body 30 in the thickness direction Z. When the absorbent article 1 is worn, the leg-circle stretching members 40 contract in the longitudinal direction Y, thereby causing the side edges of the main body 2 to conform to the wearer's leg circumference. That is, the pair of leg-circle stretching members 40 form leg circumference pleats that stretch along the wearer's leg circumference. Alternatively, the absorbent article 1 may have multiple leg-circle stretching members 40. Figure 1 As shown, multiple leg-circle telescopic members 40 are arranged in the lateral direction X on the outside of the telescopic member 13 and extend parallel to each other in the longitudinal direction Y. Alternatively, in the extended state, the tension of a pair of leg-circle telescopic members 40 is greater than the tension of a pair of anti-leakage pleats 80 telescopic members 13.

[0074] Alternatively, when viewed from the skin-side Z1, the pair of leg-circumference stretch members 40 partially overlap with the absorbent body 30. For example, as... Figure 1 As shown, when viewed from the skin-side Z1, the pair of leg-circle stretch members 40 partially overlap with the dorsal and ventral portions 33 and 35 of the absorbent body 30. In the following description, when viewed from the skin-side Z1, the straight line connecting the intersection points of the pair of leg-circle stretch members 40 and the pair of widened portions 33w of the dorsal portion 33 is referred to as the first reference line R1. As will be described later, the area between the first reference line R1 and the center line CL1 of the main body 2 becomes the reference position for the wearer's buttocks.

[0075] The absorbent article 1 is stored in the packaging body in a state where it is folded into three folds along the first fold line FL1 and the second fold line FL2 in the longitudinal direction Y. Therefore, when the folded absorbent article 1 is removed from the packaging body, creases are formed in the main body 2 along the first fold line FL1 and the second fold line FL2. A crease is a strip-shaped wrinkle formed along the first fold line FL1 and the second fold line FL2. In particular, at least a portion of the first fold line FL1 and the second fold line FL2 are formed by folding the main body 2 in a valley-fold manner when viewed from the skin side Z1.

[0076] The first fold line FL1 is formed between the center line CL1 in the longitudinal direction Y of the main body 2 and the back end 2R, extending in the transverse direction X in a manner that traverses the absorbent body 30. More specifically, the first fold line FL1 is positioned between the first reference line R1 and the center line CL1 of the main body 2. The second fold line FL2 is formed between the center line CL1 in the longitudinal direction Y of the main body 2 and the ventral end 2F, extending in the transverse direction X in a manner that traverses the absorbent body 30. The first fold line FL1 and the second fold line FL2 extend throughout the entire area in the transverse direction X of the main body 2, and traverse the telescopic members 13 of a pair of leak-proof pleats 80 and a pair of leg-length telescopic members 40.

[0077] like Figure 1 As shown, in the main body 2, a guide mark 60 is formed in a manner that allows visual recognition from the skin side Z1 to guide the position of the wearer's buttocks. In one embodiment, as... Figure 1 As shown, the guide mark 60 has a roughly W-shaped shape that mimics the shape of a buttock, so that the user can identify the position where the wearer's buttocks should be positioned.

[0078] The guide mark 60 is disposed on the skin-side Z1 relative to the absorber 30. For example, the guide mark 60 is printed on the surface sheet 10 in a manner that allows it to be visually identified from the skin-side Z1. Alternatively, the guide mark 60 may be colored in a different color than the surface sheet 10. For example, the guide mark 60 may be printed in blue or green. More specifically, the guide mark 60 may be printed in a color within the range of 5 GY to 10 RP on the Munsell color wheel. The guide mark 60 may be colored using, for example, ink, colored hot melt adhesive, pressure-sensitive paper, or temperature-sensitive paper.

[0079] Figure 6 This is a diagram showing the enlarged perimeter of the guide mark 60. Furthermore, for ease of explanation, in... Figure 6 In the diagram, a pair of leak-proof pleats (80°) are omitted. (See diagram for example.) Figure 6 As shown, the guide mark 60 includes two curved portions 61 that curve smoothly in a ventral direction. Each curved portion 61 has one end 62 and the other end 63, extending in a generally semi-circular arc between the two ends 62 and 63. The ends 62 of the two curved portions 61 are connected together by a connecting portion 65. The connecting portion 65 is positioned on the centerline CL2 in the transverse direction X of the main body portion 2. The other ends 63 of the two curved portions 61 are located outside the connecting portion 65 in the transverse direction X. Furthermore, the other ends 63 of the two curved portions 61 are positioned on the rear side in the longitudinal direction Y, beyond the connecting portion 65. The other ends 63 of the two curved portions 61 have a smooth profile. Alternatively, the other ends 63 of the two curved portions 61 may have an angular profile. By forming the guide mark 60 with the above-described shape on the main body 2, the user of the absorbent article 1 can associate the shape of the guide mark 60 with the shape of the buttocks and identify that the wearer's buttocks should be configured to match the guide mark 60.

[0080] like Figure 6 As shown, the two curved portions 61 have a substantially constant line width t1 from one end 62 to the other end 63. Alternatively, the line width t1 of the two curved portions 61 may be 10% or more and 50% or less relative to the width W4 in the lateral direction X of the guide mark 60. For example, the line width t1 of the two curved portions 61 is 2 cm or more. By setting the line width t1 to 2 cm or more, the visual recognizability of the guide mark 60 can be improved.

[0081] Furthermore, the guide mark 60 has a width W4 in the lateral direction X and a width L1 in the longitudinal direction Y. The width W4 of the guide mark 60 in the lateral direction X corresponds to the lateral distance 63 between the other ends 63 of the two curved portions 61. The width L1 of the guide mark 60 in the longitudinal direction Y corresponds to the longitudinal distance 64 between the lowest point 64 and the other ends 63 of the two curved portions 61 when the most ventrally protruding part of the two curved portions 61 is set as the lowest point 64. The width W4 of the guide mark 60 in the lateral direction X is larger than the width L1 of the guide mark 60 in the longitudinal direction Y. Therefore, the guide mark 60 has a longer lateral shape in the lateral direction X.

[0082] like Figure 6 As shown, the width W4 of the guide mark 60 in the lateral direction X is greater than the distance d between the pair of upright lines 80a of the pair of leak-proof pleats 80. Therefore, the guide mark 60 includes an inner portion 60a disposed between the pair of upright lines 80a, and a pair of outer portions 60b disposed outside the pair of upright lines 80a in the lateral direction X. The inner portion 60a and the pair of outer portions 60b are continuous with each other, forming a one-piece design that mimics the shape of a buttock. In one embodiment, the guide mark 60 has a shape symmetrical with respect to the center line CL2 in the lateral direction X of the main body 2. Therefore, in the longitudinal direction Y, the pair of outer portions 60b are positioned at the same location.

[0083] The inner portion 60a of the guide mark 60 is entirely exposed on the skin side Z1 when the pair of leak-proof pleats 80 are in the upright state, and is partially covered by the side panels 12 of the pair of leak-proof pleats 80 when the pair of leak-proof pleats 80 are not in the upright state. On the other hand, the pair of outer portions 60b of the guide mark 60 are covered by the side panels 12 of the pair of leak-proof pleats 80 outside the pair of upright lines 80a. The outer portions 60b can be visually identified from the skin side Z1 through the side panels 12 of the pair of leak-proof pleats 80.

[0084] Alternatively, in one implementation, such as Figure 6 As shown, the width L2 of the outer portion 60b along the longitudinal direction Y is more than 50% of the width L1 of the guide mark 60 along the longitudinal direction Y. By making the width L2 of the outer portion 60b larger, the visual recognizability of the outer portion 60b of the guide mark 60 can be improved.

[0085] like Figure 1As shown, when viewed from the skin side Z1, the guide mark 60 is positioned overlapping with the absorbent core 30. More specifically, the guide mark 60 is located on the dorsal side 33 of the absorbent core 31. The dorsal side 33 is the area that forms the widest part of the absorbent core 31, so by placing the guide mark 60 on the dorsal side 33, urine excreted by the wearer can be effectively absorbed in the dorsal side 33.

[0086] Alternatively, in one embodiment, when viewed from the skin-side Z1, the guide mark 60 may be partially or entirely positioned overlapping the high weight-per-unit-area region 30h of the absorbent body 30. In this case, urine excreted by the wearer can be effectively absorbed within the high weight-per-unit-area region 30h. Alternatively, if the absorbent body 30 has an embossed area, the guide mark 60 may partially or entirely overlap with the embossed area when viewed from the skin-side Z1. Since wrinkles are less likely to occur in the embossed area due to its high stiffness, the visual recognizability of the guide mark 60 can be improved by overlapping it with the embossed area.

[0087] like Figure 5 and Figure 6 As shown, the dorsal portion 33 of the absorber 30 includes an inner region 33i disposed between a pair of upright lines 80a, and an outer region 33o disposed outside the pair of upright lines 80a in the lateral direction X. At least a portion of the inner region 33i is disposed within a high weight-per-unit area region 30h, and at least a portion of the outer region 33o is disposed within a low weight-per-unit area region 30l. When viewed from the skin-side Z1, the inner portion 60a of the guide mark 60 overlaps with the inner region 33i of the absorber 30. When viewed from the skin-side Z1, the outer portion 60b of the guide mark 60 overlaps with the outer region 33o of the absorber 30.

[0088] Furthermore, when viewed from the skin-side Z1, the guide mark 60 is partially or entirely positioned between the first reference line R1 and the center line CL1 in the longitudinal direction Y of the main body 2. Here, as... Figure 1 As shown, the distance between the first reference line R1 and the first fold line FL1 is set as x, and the straight line extending in the lateral direction X between the first reference line R1 and the center line CL1 of the main body 2 and at a distance of 2x from the first reference line R1 is set as the second reference line R2. Alternatively, when viewed from the skin side Z1, the guide mark 60 may be partially or entirely positioned between the first reference line R1 and the second reference line R2. Alternatively, when viewed from the skin side Z1, the guide mark 60 may be partially or entirely positioned between the first reference line R1 and the first fold line FL1. That is, the guide mark 60 is positioned near the first reference line R1.

[0089] like Figure 1 As shown, the guide mark 60 is disposed on the ventral side relative to the dorsal fixing portion 83R, and on the dorsal side relative to the ventral fixing portion 83F. Furthermore, a portion or the entirety of the guide mark 60 is disposed on the ventral side relative to the first end 40r of the pair of leg-circle telescopic members 40 in the longitudinal direction Y, and on the dorsal side relative to the second end 40f of the pair of leg-circle telescopic members 40. That is, the inner portion 60a and the outer portion 60b of the guide mark 60 are disposed between the pair of leg-circle telescopic members 40. Alternatively, in one embodiment, a portion or the entirety of the guide mark 60 may be disposed on the dorsal side relative to the first end 40r of the pair of leg-circle telescopic members 40 in the longitudinal direction Y.

[0090] As described above, when viewed from the skin side Z1, if the pair of leg-circle telescopic members 40 are arranged to overlap with the dorsal side 33 and ventral side 35 of the absorbent body 30, in a natural state without external force applied to the absorbent article 1, the pair of leg-circle telescopic members 40 contract in the longitudinal direction Y, pulling the dorsal side 33 and ventral side 35 closer together, thus acting on the absorbent body 30. As a result, as... Figure 7 As shown, in its natural state, a portion of the main body 2 is deformed such that it bulges towards the skin surface Z1, with the first reference line R1 as the starting point. In the following description, the area that bulges towards the skin surface Z1 of the main body 2 using this deformation will be referred to as the protrusion 25.

[0091] In nursing or medical settings, when dressing an adult with physical disabilities in absorbent clothing 1, there is a situation where the absorbent clothing 1 is put on after the wearer has assumed a side-lying position. In this case, after assuming the side-lying position, the unfolded absorbent clothing 1 is placed under the wearer's waist, and the wearer is then placed on their back with their buttocks supported by the absorbent clothing. Then, after pulling the absorbent clothing up towards the abdomen past the wearer's crotch, a pair of first hook-and-loop fasteners 90A and second hook-and-loop fasteners 90B are secured to the fastening portion. At this time, if the distance between the wearer's buttocks in the side-lying position and the guide mark 60 formed on the main body 2 is large, it is difficult to accurately align the wearer's buttocks with the guide mark 60.

[0092] In contrast, such as Figure 7As shown, by deforming the garment so as to bulge towards the skin side Z1 from the first reference line R1, the distance D between the wearer's buttocks B and the protrusion 25 of the main body 2 is reduced in the lateral position. Here, in the absorbent article 1, at least a portion of the guide mark 60 is positioned between the first reference line R1 and the center line CL1 in the longitudinal direction Y of the main body, thus the guide mark 60 is positioned to overlap with the protrusion 25. Therefore, the distance D between the wearer's buttocks B and the guide mark 60 can be reduced during wear. As a result, alignment of the wearer's buttocks B and the guide mark 60 becomes easier, and the absorbent article 1 can be easily worn in the correct position.

[0093] Alternatively, in one embodiment, the guide mark 60 may be partially positioned at a location overlapping the first reference line R1. Alternatively, when viewed from the skin side Z1, at least a portion of the guide mark 60 may be positioned between the widened portions 15c of the pair of dorsal wings 15. Alternatively, when viewed from the skin side Z1, at least a portion of the guide mark 60 may be positioned between the straight portions 15s of the pair of dorsal wings 15.

[0094] Alternatively, in one implementation, such as Figure 1 As shown, in the main body 2, a central guide mark 70 is formed in a manner that allows visual recognition from the skin-side Z1. This central guide mark 70 is used to guide the position of a portion of the wearer's body that should be positioned in the lateral direction X. The central guide mark 70 includes a ventral central guide mark 71 disposed in the longitudinal direction Y between the guide mark 60 and the ventral end 2F, and a dorsal central guide mark 72 disposed in the longitudinal direction Y between the guide mark 60 and the dorsal end 2R.

[0095] The ventral central guide mark 71 and the dorsal central guide mark 72 are disposed on the skin-side Z1 relative to the absorber 30. For example, the ventral central guide mark 71 and the dorsal central guide mark 72 are printed on the surface sheet 10 in a manner that allows them to be visually identified from the skin-side Z1. Alternatively, the ventral central guide mark 71 and the dorsal central guide mark 72 may be colored in a different color than the surface sheet 10. For example, the ventral central guide mark 71 and the dorsal central guide mark 72 may be printed in blue or green. More specifically, the ventral central guide mark 71 and the dorsal central guide mark 72 may be printed in colors, for example, within the range of 5 GY to 10 RP on the Munsell color wheel.

[0096] Alternatively, the guide mark 60, the ventral central guide mark 71, and the dorsal central guide mark 72 may be printed with ink on the main body 2. In this case, the amount of ink per unit area of ​​the guide mark 60 may be greater than the amount of ink per unit area of ​​the ventral central guide mark 71 and the dorsal central guide mark 72. For example, when the guide mark 60, the ventral central guide mark 71, and the dorsal central guide mark 72 are displayed as a collection of tiny ink dots, the density of the ink dots on the guide mark 60 may be higher than the density of the ink dots on the ventral central guide mark 71 and the dorsal central guide mark 72. By making the amount of ink per unit area of ​​the guide mark 60 relatively greater, the guide mark 60 appears darker, thus improving the visual recognizability of the guide mark 60. Furthermore, the guide mark 60 and the central guide mark 70 may have different hues, brightness, or saturation. The recognizability of the guide mark 60 and the central guide mark 70 is improved by giving them different hues, brightness, or saturation.

[0097] The ventral central guide mark 71 extends linearly along the centerline CL2 in the transverse direction X of the main body between the guide mark 60 and the ventral end 2F. The ventral central guide mark 71 has a dorsal end 71r and a ventral end 71f, and extends longitudinally Y between the dorsal end and the ventral end 71f in a manner that overlaps with the centerline CL2 of the main body 2 when viewed from the skin-side Z1. Figure 6 As shown, the dorsal end 71r of the ventral central guide mark 71 is positioned to overlap with the absorbent body 30 when viewed from the skin side Z1, and is separated from the connecting portion 65 of the guide mark 60. That is, the guide mark 60 and the ventral central guide mark 71 are not connected to each other.

[0098] The dorsal central guide mark 72 extends linearly along the centerline CL2 in the transverse direction X of the main body between the guide mark 60 and the dorsal end 2R. The dorsal central guide mark 72 has a dorsal end 72r and a ventral end 72f, and extends longitudinally between the dorsal end 72r and the ventral end 72f such that they overlap with the centerline CL2 of the main body 2 when viewed from the skin side Z1. The dorsal end 72r of the dorsal central guide mark 72 is disposed on the dorsal end 2R. The ventral end 72f of the dorsal central guide mark 72 is disposed at a position overlapping with the absorbent 30 when viewed from the skin side Z1, and is separated from the connecting portion 65 of the guide mark 60. That is, the guide mark 60 and the dorsal central guide mark 72 are not connected to each other.

[0099] As described above, the central guide mark 70 is a mark used to guide the absorbent article 1 to its central position in the lateral direction X. Alternatively, it could be, as... Figure 1As shown, the ventral central guide mark 71 and the dorsal central guide mark 72 are dashed lines, dotted lines, or dotted-dash lines. By making the ventral central guide mark 71 and the dorsal central guide mark 72 dashed lines, dotted lines, or dotted-dash lines, the user can easily identify that the ventral central guide mark 71 and the dorsal central guide mark 72 indicate the center of the absorbent article 1. The ventral central guide mark 71 has a substantially constant line width t2. The dorsal central guide mark 72 has a substantially constant line width t3. Alternatively, the line width t1 of the two curved portions 61 of the guide mark 60 may be thicker than the line width t2 of the ventral central guide mark 71 and the line width t3 of the dorsal central guide mark 72.

[0100] Furthermore, when viewed from the skin-side Z1, if the guide mark 60 and the central guide mark 70 are connected, the guide mark 60 does not appear to mimic the shape of the buttocks, and the user cannot identify the correct placement of the guide mark 60 on the buttocks. In contrast, as... Figure 1 As shown, by making the guide mark 60 and the central guide mark 70 unconnected, the user can easily identify the position where the guide mark 60 should be placed on the buttocks.

[0101] Alternatively, in one implementation, such as Figure 2 As shown, an outer central guide mark 73 is formed on the outer surface of the back sheet 20 in a manner that allows it to be visually recognized from the non-skin side Z2. This outer central guide mark 73 extends along the center line CL2 in the transverse direction X. The outer central guide mark 73 is printed, for example, on the back film 21 and can be visually recognized from the non-skin side Z2 through the back non-woven fabric 22. The outer central guide mark 73 extends linearly along the center line CL2 across the entire area in the longitudinal direction Y of the main body 2. Alternatively, the line width of the outer central guide mark 73 in the transverse direction may be greater than the line width in the transverse direction X of the ventral central guide mark 71 and the dorsal central guide mark 72.

[0102] As described above, a central guide mark 71 extending along the center line CL2 in the lateral direction X is formed on the main body 2. Therefore, by aligning the central guide mark 71 on the abdomen and the central guide mark 72 on the back with the wearer's midline when wearing the absorbent article 1, lateral deviation of the absorbent article 1 can be suppressed. Thus, the absorbent article 1 can be easily worn in the correct position. In addition, since an outer central guide mark 73 is formed on the outer surface of the back nonwoven fabric 22, the center line CL1 in the lateral direction X of the main body 2 can also be identified from the non-skin side Z2. Therefore, when wearing the absorbent article 1, if the abdomen region 53 is in contact with the wearer's abdomen, by aligning the outer central guide mark 73 with the wearer's midline when wearing the absorbent article 1, lateral deviation of the absorbent article 1 can be suppressed more effectively.

[0103] Alternatively, in one embodiment, the main body 2 may also include a liquid diffusion sheet 55. For example... Figure 3 and Figure 4 As shown, a liquid diffusion sheet 55 is disposed between the surface sheet 10 and the absorber 30. The liquid diffusion sheet 55 is, for example, made of an open film made of resin, a SAP sheet, nonwoven fabric, tissue paper, or a laminate thereof. The open film is a resin film having multiple openings extending through the thickness direction. Typically, polyethylene or polypropylene can be used as the material for the resin film. The SAP sheet is a sheet having one or more absorbent layers formed by sandwiching SAP with nonwoven fabric.

[0104] Alternatively, in one embodiment, the liquid diffuser 55 is colored a different color than the surface sheet 10. By coloring the liquid diffuser 55, it can be easily visually identified through the surface sheet 10. For example, the liquid diffuser 55 is colored blue or green.

[0105] It could also be, such as Figure 1 As shown, when viewed from the skin-side Z1, the guide mark 60 partially or entirely overlaps with the liquid diffuser 55. For example, the guide mark 60 may not be printed on the surface sheet 10, but rather on the surface of the liquid diffuser 55 on the skin-side Z1 or the non-skin-side Z2. In this case, the guide mark 60 may have a different color than the liquid diffuser 55. For example, if the liquid diffuser 55 is colored blue or green, the guide mark 60 may be white. Furthermore, the surface sheet 10, the liquid diffuser 55, and the guide mark 60 may all be different colors.

[0106] Alternatively, when viewed from the skin side Z1, the guide mark 60 may be printed on the surface sheet 10 at a position overlapping with the liquid diffusion sheet 55.

[0107] The liquid diffuser 55 is partially disposed near the guide mark 60. Specifically, the liquid diffuser 55 is disposed on the dorsal side relative to the center line CL1 in the longitudinal direction Y, and when viewed from the skin side Z1, its entirety overlaps with the absorbent body 30. For example, the liquid diffuser 55 has a rectangular or square planar shape. In the longitudinal direction Y, the ventral end 55f of the liquid diffuser 55 is disposed between the first reference line R1 and the center line CL1 in the longitudinal direction Y, and the dorsal end 55r of the liquid diffuser 55 is disposed between the first reference line R1 and the dorsal end 2R of the main body 2. The two side edges 55s of the liquid diffuser 55 in the transverse direction X are disposed on the inner side in the transverse direction relative to a pair of upright lines 80a.

[0108] By providing a liquid diffusion sheet 55 between the surface sheet 10 and the absorbent body 30, urine absorbed by the absorbent body 30 is blocked by the liquid diffusion sheet 55, preventing backflow to the skin side Z1. In particular, since the liquid diffusion sheet 55 is positioned to overlap with the guide mark 60 on the wearer's buttocks, it is possible to prevent urine that has backflowed from the absorbent body 30 from adhering to the wearer's buttocks. Furthermore, when viewed from the skin side Z1, at least a portion of the liquid diffusion sheet 55 may be positioned to overlap with the high weight-per-unit area region 30h. This further enhances the effectiveness of preventing urine backflow.

[0109] Alternatively, in one embodiment, when the absorbent article 1 is removed from the packaging, the pair of back wings 15 are temporarily secured in a folded state along a fold line extending in the longitudinal direction Y. For example, as Figure 8 As shown, when viewed from the skin-side Z1, a pair of dorsal wings 15 are folded along a pair of third fold lines FL3 extending in the longitudinal direction Y. Furthermore, with the pair of dorsal wings 15 unfolded, they are formed outside the transverse direction X of the pair of third fold lines FL3, and folded back outwards along a pair of fourth fold lines FL4 extending in the longitudinal direction Y. The folded-back pair of dorsal wings 15 and the surface sheet 10 are temporarily fixed. Temporary fixing refers to a weak bonding where the folded-back wings do not peel off during transport but can be peeled off by the user applying force during use. For example, temporary fixing can be performed using adhesives, embossing, or ultrasonic processing. By temporarily fixing the folded pair of dorsal wings 15 and the surface sheet 10, the pair of dorsal wings 15 are fixed in a folded state during transport.

[0110] Furthermore, the position and shape of the guide mark 60 are not limited to the positions and shapes described above. For example, it can also be designed as follows: Figure 9As shown, the inner portion 60a and the pair of outer portions 60b of the guide mark 60 are separated from each other. Alternatively, it can be as follows: Figure 10 As shown, the guide mark 60 is positioned offset in the lateral direction X from the centerline CL2. Alternatively, it could be, as... Figure 11 As shown, when viewed from the skin side Z1, the guide mark 60 has a non-symmetrical shape with a center line CL2 in the lateral direction X relative to the main body 2.

[0111] As explained above, in the absorbent article 1, in its natural state, the contraction force of a pair of leg-lengthening members 40 acts on the absorbent body 30, causing a portion of the main body 2 to deform in a manner that raises towards the skin-side Z1, with the first reference line R1 as the starting point. This forms a protrusion 25 in the main body 2. When the main body 2 deforms in this way, the distance between the wearer's buttocks and the protrusion 25 decreases in the side-lying position. Here, in the absorbent article 1, at least a portion of the guide mark 60 is positioned between the first reference line R1 and the center line CL1 in the longitudinal direction of the main body, so that when viewed from the skin-side Z1, at least a portion of the guide mark 60 overlaps with the protrusion 25. Therefore, the distance between the wearer's buttocks and the guide mark 60 can be reduced during wear. As a result, alignment of the wearer's buttocks and the guide mark 60 becomes easier, allowing the absorbent article 1 to be easily worn in the correct position.

[0112] The absorbent article 1 described above can be used in combination with the absorbent pad 100. Hereinafter, the absorbent article group 200, which includes the absorbent article 1 and the absorbent pad 100, will be described. Figure 12 This is a top view showing an absorbent pad 100 according to one embodiment. Figure 13 This is a top view showing an absorbent article assembly 200 including absorbent article 1 and absorbent pad 100. (See attached image.) Figure 13 As shown, the absorbent pad 100 is used by overlapping the skin side Z1 of the absorbent article 1.

[0113] The absorbent pad 100 includes a surface sheet 110 disposed on the skin-side Z1, a back sheet 120 disposed on the non-skin-side Z2, and an absorbent core 130 disposed between the surface sheet 110 and the back sheet 120. The absorbent core 130 includes an absorbent core containing pulp and SAP. The absorbent pad 100 has a dorsal region 151 located on the back side, a ventral region 153 located on the ventral side, and a crotch region 152 located between the dorsal region 151 and the ventral region 153. The dorsal region 151, the crotch region 152, and the ventral region 153 are arranged in the above order from the dorsal side.

[0114] The maximum width in the lateral direction X of the dorsal region 151 and the maximum width in the lateral direction X of the ventral region 153 are greater than the maximum width in the lateral direction X of the crotch region 152. Therefore, the absorbent pad 100 has a shape that narrows in the crotch region 152. The maximum width of the dorsal region 151 is equivalent to the maximum width of the absorbent pad 100. That is, for the absorbent pad 100, the dorsal region 151 has a maximum width portion 165 whose width in the lateral direction X is the maximum width. Furthermore, the shape of the absorbent pad 100 is not limited to the above-described shape. For example, the absorbent pad 100 may also be formed in an hourglass shape.

[0115] Alternatively, guide marks 160 may be formed in the dorsal region 151 of the absorbent pad 100 in a manner visually recognizable from the skin-side Z1. These guide marks 160 are used to guide the position of the wearer's buttocks in the longitudinal direction Y. In one embodiment, as... Figure 12 As shown, the guide mark 160 has a roughly W-shaped shape that mimics the shape of a buttock, so that the user can identify the position where the wearer's buttocks should be positioned.

[0116] The absorbent body 130 includes a dorsal portion 133 disposed in the dorsal region 151, a crotch portion 134 disposed in the crotch region 152, and a ventral portion 135 disposed in the ventral region 153. The maximum width of the dorsal portion 133 in the lateral direction X and the maximum width of the ventral portion 135 in the lateral direction X are greater than the maximum width of the crotch portion 134 in the lateral direction X. Therefore, the absorbent body 130 has a narrowed shape in the crotch portion 134. The maximum width of the dorsal portion 133 is equivalent to the maximum width of the absorbent body 130.

[0117] like Figure 13 As shown, the absorbent pad 100 is disposed on top of the absorbent article 1 from the skin side Z1. Specifically, the absorbent pad 100 is disposed on the absorbent article 1 with the center line CL2 in the transverse direction X of the absorbent article 1 and the center line in the transverse direction X of the absorbent pad 100 aligned, so that the center of the absorbent article 1 and the center of the absorbent pad 100 overlap. At this time, in order to prevent leakage, the absorbent pad 100 is disposed inside the pair of leak-proof pleats 80 of the absorbent article 1 with its side portion bent toward the skin side Z1. When the absorbent pad 100 is disposed on the absorbent article 1 in this way, the maximum width portion 165 of the absorbent pad 100 is disposed at a position that overlaps with the guide mark 60 of the absorbent article 1 in the longitudinal direction Y.

[0118] Furthermore, when the absorbent pad 100 is placed on the absorbent article 1 with its center overlapping the center of the absorbent article 1, the guide mark 160 of the absorbent pad 100 and the inner portion 60a of the guide mark 60 of the absorbent article 1 are configured to overlap at least partially. On the other hand, even after the absorbent pad 100 is placed on the absorbent article 1, the outer portion 60b of the guide mark 60 can be visually identified through the side panels 12 of the pair of leak-proof pleats 80. Moreover, the partial overlap of the guide mark 160 of the absorbent pad 100 and the outer portion 60b of the guide mark 60 form an integrated design that mimics the shape of the buttocks. Therefore, even when the absorbent pad 100 is overlapped on the absorbent article 1, the wearer's buttocks can be positioned correctly.

[0119] As explained above, in Figure 13 In the absorbent article assembly 200 shown, when the absorbent pad 100 is placed on the absorbent article 1, the outer portion 60b of the guide mark 60 can be visually identified from the skin side Z1 through a pair of leak-proof pleats 80. Therefore, even when the absorbent pad 100 is used simultaneously, the wearer's buttocks can be aligned with the position of the guide mark 60, making it easy to wear the absorbent article 1 in the accurate position. Furthermore, when the absorbent pad 100 is placed on the absorbent article 1, the position of the maximum width portion 165 of the absorbent pad 100 in the longitudinal direction Y is configured to overlap with the position of the guide mark 60 in the longitudinal direction Y, so that the maximum width portion of the absorbent pad 100 can be placed near the buttocks where urine easily adheres. Therefore, urine can be efficiently absorbed in the maximum width portion 165 of the absorbent pad 100, suppressing urinary leakage.

[0120] The absorbent article 1 of various embodiments has been described above, but the present invention is not limited to the embodiments described above, and various modifications can be made without changing the spirit of the invention. That is, it should be noted that the above embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0121] For example, in the above embodiment, the guide mark 60 has a shape that mimics the shape of a buttock to guide the position where the wearer's buttocks should be positioned. However, the guide mark 60 is not limited to mimicking the shape of a buttock as long as it can guide the position where the wearer's buttocks should be positioned in the longitudinal direction. For example, the guide mark 60 may also have a shape of text, pattern, or geometry.

[0122] In addition, Figure 12 and Figure 13In this embodiment, a guide mark 160 is formed on the absorbent pad 100, but it is not necessary for the guide mark 160 to be formed on the absorbent pad 100. Even when the guide mark 160 is not formed, the outer portion 60b of the guide mark 60 can be visually identified from the skin side Z1 through a pair of leak-proof pleats 80. Therefore, even when the absorbent pad 100 is used at the same time, the wearer's buttocks can be aligned with the guide mark 60 as a reference. Furthermore, the various embodiments described above can be combined without contradiction.

[0123] The invention will be described with reference to the following list of items. Furthermore, even without specific enumeration, the invention can be incorporated by any combination of the following items.

[0124] [1] An absorbent article comprising:

[0125] The main body, extending longitudinally between its dorsal and ventral ends, includes a surface sheet disposed on the wearer's skin side, a back sheet disposed on the non-skin side opposite to the skin side, and an absorbent body disposed between the surface sheet and the back sheet; and

[0126] A pair of leak-proof pleats, which are capable of standing upright relative to the surface sheet along a pair of upright lines extending in the longitudinal direction at positions that are separated from each other in a transverse direction perpendicular to the longitudinal direction.

[0127] The main body has guide marks for guiding the position of the wearer's hips.

[0128] The guide mark includes: an inner portion disposed between the pair of raised lines; and an outer portion disposed outside the pair of raised lines in the lateral direction, and visually identifiable from the skin side across the pair of leak-proof pleats.

[0129] [2] Among the absorbent articles described in [1],

[0130] The pair of leak-proof pleats each includes a side panel that covers both sides of the surface panel in the lateral direction.

[0131] On the outside of the pair of upright lines, the surface piece and the side piece are bonded together.

[0132] [3] In the absorbent articles described in [1] or [2], the guide mark has a different color from the surface sheet.

[0133] [4] Among the absorbent articles described in [2],

[0134] The side panel includes a dorsal fixing portion, a ventral fixing portion, and an upright portion disposed in the longitudinal direction between the dorsal fixing portion and the ventral fixing portion.

[0135] The dorsal fixing part and the ventral fixing part are engaged with the surface piece when tilted inward in the lateral direction.

[0136] The raised portion is non-engaged relative to the surface sheet.

[0137] [5] In the absorbent article described in [4], in the longitudinal direction, the guide mark is disposed on the ventral end relative to the dorsal fixation portion.

[0138] [6] Among the absorbent articles described in any of [1] to [5],

[0139] It also includes a pair of leg-circumference telescopic members, which are disposed on the non-skin-surface side of the main body relative to the absorbent body in the thickness direction, and are capable of telescoping along the longitudinal direction.

[0140] The outer portion of the guide mark is positioned between the pair of leg extension members.

[0141] [7] Among the absorbent articles described in [6],

[0142] The pair of leg-circumference telescopic members are respectively fixed to the main body between a first end located on the back side and a second end located on the ventral side.

[0143] At least a portion of the outer portion of the guide mark is disposed on the back end side relative to the first end of the pair of leg extension members in the longitudinal direction.

[0144] [8] Among the absorbent articles described in any of [1] to [7],

[0145] The absorber includes an inner region disposed between the pair of upright lines and an outer region disposed outside the pair of upright lines in the lateral direction.

[0146] When viewed from the skin side, the outer portion of the guide mark overlaps with the outer region of the absorbent.

[0147] [9] Among the absorbent articles described in any of [1] to [8],

[0148] The absorber includes an embossed area that has undergone embossing processing.

[0149] When viewed from the skin side, at least a portion of the guide mark overlaps with the embossed area.

[0150]

[10] Among the absorbent articles described in any of [1] to [9],

[0151] The guide mark includes a pair of outer portions, including the outer portion.

[0152] The pair of outer portions are respectively positioned outside the pair of upright lines in the lateral direction.

[0153]

[11] In the absorbent article described in

[10] , the pair of outer portions are positioned in the same place relative to each other in the longitudinal direction.

[0154]

[12] In any of the absorbent articles described in [1] to

[11] , the inner portion and the outer portion of the guide mark are continuous with each other.

[0155]

[13] In any of the absorbent articles described in [1] to

[12] , the width of the outer portion of the guide mark along the longitudinal direction is 50% or more relative to the width of the guide mark along the longitudinal direction.

[0156]

[14] In any of the absorbent articles described in [1] to

[13] , when viewed from the skin side, the guide mark has an asymmetrical shape relative to the center line in the lateral direction of the main body.

[0157]

[15] An absorbent article group comprising:

[0158] Absorbent articles described in any of [1] to

[14] ; and

[0159] An absorbent pad is used by overlapping the absorbent article from the skin side.

[0160] The absorbent pad includes the maximum width portion in the lateral direction.

[0161] When the absorbent pad is disposed on the absorbent article such that the center of the absorbent article and the center of the absorbent pad overlap, the position of the maximum width portion of the absorbent pad in the longitudinal direction is configured to overlap with the position of the guide mark in the longitudinal direction.

[0162]

[16] In the group of absorbent articles described in

[15] ,

[0163] The absorbent pad has guide marks for guiding the position of the wearer's hips in the longitudinal direction.

[0164] When the absorbent pad is disposed on the absorbent article such that the center of the absorbent article and the center of the absorbent pad overlap, the guide mark of the absorbent pad and the inner portion of the guide mark of the absorbent article are configured to overlap at least partially.

[0165] Explanation of reference numerals in the attached figures

[0166] 1. Absorbent material; 2. Main body; 2F, ventral end; 2R, dorsal end; 10. Surface sheet; 12. Side sheet; 20. Back sheet; 30. Absorbent body; 33i, inner region; 33o, outer region; 40. Leg circumference telescopic member; 40r, first end; 40f, second end; 60, 160, guide mark; 60a, inner part; 60b, outer part; 80. Leak-proof pleat; 80a, rise line; 81, rise part; 83F, ventral fixing part; 83R, dorsal fixing part; 100. Absorbent pad; 165. Maximum width part; 200. Absorbent material group; B. Buttocks; CL1, center line in the longitudinal direction of the main body; CL2, center line in the transverse direction of the main body; X, transverse direction; Y, longitudinal direction; Z1, skin side; Z2, non-skin side.

Claims

1. An absorbent article, wherein, This absorbent item has the following characteristics: The main body, extending longitudinally between its dorsal and ventral ends, includes a surface sheet disposed on the wearer's skin side, a back sheet disposed on the non-skin side opposite to the skin side, and an absorbent body disposed between the surface sheet and the back sheet; and A pair of leak-proof pleats, which are capable of standing upright relative to the surface sheet along a pair of upright lines extending in the longitudinal direction at positions that are separated from each other in a transverse direction perpendicular to the longitudinal direction. The main body has guide marks for guiding the position of the wearer's hips. The guide mark includes: an inner portion disposed between the pair of raised lines; and an outer portion disposed outside the pair of raised lines in the lateral direction, and visually identifiable from the skin side across the pair of leak-proof pleats.

2. The absorbent article according to claim 1, wherein, The pair of leak-proof pleats each includes a side panel that covers both sides of the surface panel in the lateral direction. On the outside of the pair of upright lines, the surface piece and the side piece are bonded together.

3. The absorbent article according to claim 1, wherein, The guide mark has a different color than the surface sheet.

4. The absorbent article according to claim 2, wherein, The side panel includes a dorsal fixing portion, a ventral fixing portion, and an upright portion disposed in the longitudinal direction between the dorsal fixing portion and the ventral fixing portion. The dorsal fixing part and the ventral fixing part are engaged with the surface piece when tilted inward in the lateral direction. The raised portion is non-engaged relative to the surface sheet.

5. The absorbent article according to claim 4, wherein, In the longitudinal direction, the guide mark is disposed on the ventral end relative to the dorsal fixing portion.

6. The absorbent article according to claim 1, wherein, The absorbent article also includes a pair of leg-circle telescopic members, which are disposed on the non-skin side relative to the absorbent body in the thickness direction of the main body and are capable of telescopic movement in the longitudinal direction. The outer portion of the guide mark is positioned between the pair of leg extension members.

7. The absorbent article according to claim 6, wherein, The pair of leg-circumference telescopic members are respectively fixed to the main body between a first end located on the back side and a second end located on the ventral side. At least a portion of the outer portion of the guide mark is disposed on the back end side relative to the first end of the pair of leg extension members in the longitudinal direction.

8. The absorbent article according to claim 1, wherein, The absorber includes an inner region disposed between the pair of upright lines and an outer region disposed outside the pair of upright lines in the lateral direction. When viewed from the skin side, the outer portion of the guide mark overlaps with the outer region of the absorbent.

9. The absorbent article according to claim 1, wherein, The absorber includes an embossed area that has undergone embossing processing. When viewed from the skin side, at least a portion of the guide mark overlaps with the embossed area.

10. The absorbent article according to claim 1, wherein, The guide mark includes a pair of outer portions, including the outer portion. The pair of outer portions are respectively positioned outside the pair of upright lines in the lateral direction.

11. The absorbent article according to claim 10, wherein, In the longitudinal direction, the pair of outer portions are positioned at the same location as each other.

12. The absorbent article according to claim 1, wherein, The inner and outer portions of the guide mark are continuous.

13. The absorbent article according to claim 1, wherein, The width of the outer portion of the guide mark along the longitudinal direction is more than 50% of the width of the guide mark along the longitudinal direction.

14. The absorbent article according to claim 1, wherein, When viewed from the skin side, the guide mark has an asymmetrical shape relative to the center line in the lateral direction of the main body.

15. A group of absorbent articles, wherein, This absorbent material set has: The absorbent article as claimed in claim 1; and An absorbent pad is used by overlapping the absorbent article from the skin side. The absorbent pad includes the maximum width portion in the lateral direction. When the absorbent pad is disposed on the absorbent article such that the center of the absorbent article and the center of the absorbent pad overlap, the position of the maximum width portion of the absorbent pad in the longitudinal direction is configured to overlap with the position of the guide mark in the longitudinal direction.

16. The group of absorbent articles according to claim 15, wherein, The absorbent pad has guide marks for guiding the position of the wearer's hips in the longitudinal direction. When the absorbent pad is disposed on the absorbent article such that the center of the absorbent article and the center of the absorbent pad overlap, the guide mark of the absorbent pad and the inner portion of the guide mark of the absorbent article are configured to overlap at least partially.

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