Absorbent article

Abstract

To provide an absorbent article capable of enhancing fitness to an excretion port and suppressing discomfort feeling in wearing.SOLUTION: An absorbent article (10) has a front-back direction (L), a width direction (W) and a thickness direction (T), a crotch area (S3), a front waist area (S1), and a rear waist area (S2) positioned behind the crotch area, an absorbent core (50), and a compression area disposed with a compression part for compressing at least the absorbent core in the thickness direction. The compression area has a center compression area (R81) extending in the front-back direction in a center area (R51) positioned in the center among areas made by diving the absorbent core into five in the width direction. The center compression area linearly extends while striding over the center in the front-back direction of the crotch area.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to an absorbent article having compressed portions formed by compressing an absorbent core in the thickness direction. [Background technology]

[0002] Patent Document 1 discloses an absorbent article in which compressed portions are formed by compressing an absorbent core in the thickness direction. The compressed portions in Patent Document 1 are arranged in a lattice pattern over the entire area of ​​the absorbent core. The absorbent article of Patent Document 1 can improve the liquid diffusion properties of the absorbent core while suppressing twisting and deformation of the absorbent core over the entire area.

[0003] Patent Document 2 discloses an absorbent article having a pair of low basis weight sections extending in the front-to-rear direction. When worn, the absorbent core deforms around the low basis weight sections, causing the area sandwiched between the pair of low basis weight sections to form a bottom, with the areas on the widthwise outer side of the low basis weight sections rising up, forming a recessed shape with walls rising up on the left and right in a front view. Body waste can be temporarily stored in the pocket created by this recessed shape. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6447396 [Patent Document 2] Japanese Patent Application Laid-Open No. 2011-152209 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the above-mentioned absorbent articles have the following problems. As in Patent Document 1, when a grid-shaped compressed area is provided over the entire absorbent core, the rigidity of the entire absorbent core is increased. Furthermore, because the compressed area also extends in the width direction, the absorbent core is less likely to deform inward in the width direction. This makes it difficult for the absorbent core to flexibly fit around the excretory opening, which can cause discomfort when worn.

[0006] Furthermore, in the absorbent article of Patent Document 2, the absorbent core is deformed into a concave shape, which tends to create a distance between the excretory opening and the absorbent article at the widthwise center of the absorbent core. In particular, when the absorbent article becomes heavy due to the absorption of bodily fluids, the absorbent article tends to sag downward, which can cause discomfort when worn.

[0007] The present invention has been made in view of the above problems, and aims to provide an absorbent article that can improve the fit to the excretory opening and reduce discomfort when worn. [Means for solving the problem]

[0008] An absorbent article according to one embodiment has a front-to-back direction, a width direction, and a thickness direction that are perpendicular to one another, a crotch region including a center in the front-to-back direction, a front waist region located forward of the crotch region, and a rear waist region located rearward of the crotch region, an absorbent core disposed at least in the crotch region and having an absorbent material, and a compression region in which a compression portion is disposed that compresses the absorbent core in the thickness direction. The compression region has a center compression region extending in the front-to-back direction in a center region located at the center of five equal regions obtained by dividing the absorbent core in the width direction. The center compression region extends linearly across the center of the front-to-back direction of the crotch region.

[0009] An absorbent article according to another embodiment has a front-to-back direction, a width direction, and a thickness direction that are perpendicular to each other, a crotch region centered in the front-to-back direction, a front waist region located forward of the crotch region, and a rear waist region located rearward of the crotch region, an absorbent core disposed at least in the crotch region and having an absorbent material, and a compressed region in which at least a compressed portion is disposed that compresses the absorbent core in the thickness direction. The compressed region has a center compressed region extending in the front-to-back direction in a center region located at the center of five equal regions in the width direction of the absorbent core. The widthwise length of the center compressed region is 10% or less of the widthwise length of the absorbent core at the center of the front-to-back direction of the crotch region. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a front view of an absorbent article according to an embodiment. [Figure 2] FIG. 2 is a plan view of the absorbent article according to the embodiment in an unfolded state. [Figure 3] FIG. 3 is a cross-sectional view taken along the line AA shown in FIG. [Figure 4] FIG. 4 is a plan view of the absorbent core. [Figure 5] FIG. 5 is a cross-sectional view of the absorbent core in a stretched state. [Figure 6] FIG. 6 is a cross-sectional view of the absorbent core when worn. [Figure 7] FIG. 7 is an enlarged plan view of a portion D shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0011] (1) Overview of the embodiment At least the following matters will become clear from the description of this specification and the accompanying drawings. The invention according to aspect 1 comprises a front-to-back direction, a width direction, and a thickness direction, which are perpendicular to each other; a crotch region including the center in the front-to-back direction; a front waist region located forward of the crotch region; and a rear waist region located rearward of the crotch region. An absorbent core is disposed at least in the crotch region and includes an absorbent material; and a compressed region is disposed in which at least a compressed portion is disposed, compressing the absorbent core in the thickness direction. The compressed region has a center compressed region extending in the front-to-back direction in a center region located in the center of five equal regions obtained by dividing the absorbent core into five equal parts in the width direction. The center compressed region extends linearly across the center of the front-to-back direction of the crotch region. The center compressed region is disposed in the center region located in the center of the absorbent core's width direction, and serves as a deformation base point for the absorbent core in the center region. The center compressed region extends linearly in the front-to-back direction, and the deformation base point propagates in the front-to-back direction. Therefore, the absorbent core in the center region deforms convexly from the center compressed region over a certain range extending linearly in the front-to-back direction. This improves the fit of the absorbent core to the excretory opening, reducing discomfort when worn.

[0012] The invention of the second aspect of the present invention comprises a crotch region including a center in the front-to-back direction, a width direction, and a thickness direction, each perpendicular to the other; a front waist region located forward of the crotch region; a rear waist region located rearward of the crotch region; an absorbent core disposed at least in the crotch region and having an absorbent material; and a compressed region in which at least a compressed portion is disposed, compressing the absorbent core in the thickness direction. The compressed region has a center compressed region extending in the front-to-back direction in a center region located in the center of five equal regions in the width direction of the absorbent core. The widthwise length of the center compressed region is 10% or less of the widthwise length of the absorbent core at the center of the front-to-back direction of the crotch region. The center compressed region serves as a deformation base point for the absorbent core in the center region located in the widthwise center of the absorbent core. Convex deformation from the center compressed region improves the fit of the absorbent core to the excretory opening and reduces discomfort during wear. Furthermore, the center compressed region occupies a narrow area relative to the entire widthwise area of ​​the absorbent core. This makes it easier for force to be concentrated in the central compressed region, making it easier to achieve convex deformation of the absorbent core. Furthermore, the central compressed region occupies a small area relative to the entire width of the absorbent core, making it possible to provide a deformation base point while minimizing the area of ​​the central compressed region. Because convex deformation can be achieved while minimizing the area of ​​the region that becomes hard due to the compressed portion, it can soften the contact with the skin. This reduces discomfort when worn and improves the fit of the absorbent core to the excretory opening.

[0013] According to a preferred embodiment, the invention according to Aspect 3 may have the following features in the invention according to Aspect 1 or Aspect 2. The garment comprises an absorbent main body having the absorbent core, a liquid-permeable top sheet covering the skin side of the absorbent core, and a liquid-impermeable back sheet covering the non-skin side of the absorbent core, and an outer body positioned non-skin side of the absorbent main body and covering the wearer's waist in the rear waist region and the front waist region. The center compressed region overlaps both a front joining region joining the outer body and the absorbent main body on the front waist region side, and a rear joining region joining the outer body and the absorbent main body on the rear waist region side. According to this embodiment, since the center compressed region is positioned so as to overlap the front joining region and the rear joining region, it is easy to form a convex deformation starting from the center compressed region over a wide area from the crotch region to the waist region.

[0014] According to a preferred embodiment, the invention according to embodiment 4 may have the following characteristics in the invention according to any one of embodiments 1 to 3. The central compressed region is continuous from the front edge to the rear edge of the absorbent core. According to this embodiment, deformation can be formed with the central compressed region as the base point over the entire area of ​​the absorbent core in the front-to-rear direction.

[0015] According to a preferred embodiment, the invention according to embodiment 5 may have the following characteristics in the invention according to any one of embodiments 1 to 4: The compressed portions of the central compressed region are recessed from the non-skin side of the absorbent core toward the skin side. According to this embodiment, the absorbent core is more likely to deform convexly toward the skin side, using the central compressed region as a base point, thereby further improving the fit to the excretory opening.

[0016] According to a preferred embodiment, the invention according to embodiment 6 may have the following features in the invention according to any one of embodiments 1 to 5. The compressed regions have side compressed regions located outboard of the central compressed region in the width direction. The width direction length of the side compressed regions is longer than the width direction length of the central compressed region. According to this embodiment, the side compressed regions, which are longer in the width direction, are located to the sides of the central compressed region, making it easier for the central compressed region, which is relatively shorter in the width direction, to function as a deformation base point, making it easier to achieve a convex shape for the absorbent core. Furthermore, the deformation of the central compressed region is supported by the side compressed regions, which are arranged with a wide width, making it easier to maintain the convex deformation of the absorbent core.

[0017] According to a preferred embodiment, the invention according to embodiment 7 may have the following features in the invention according to embodiment 6. The compression sections arranged in the side compression regions are lattice-shaped in plan view. According to this embodiment, the compression sections arranged in the side compression regions extend in both the front-to-rear and width directions, making it easier to deform the absorbent core into a planar shape rather than a linear shape. The planar deformation of the side compression regions due to the lattice-shaped compression sections makes it easier to continue to support the convex deformation of the central compression region from the sides. Therefore, the convex deformation at the center of the absorbent core's width direction can be maintained.

[0018] According to a preferred embodiment, the invention according to embodiment 8 may be the invention according to either embodiment 6 or embodiment 7, and may have the following features: The side compression regions have a first side compression region and a second side compression region located outboard of the first side compression region in the width direction. The area ratio of the compressed portions in the second side compression region is higher than the area ratio of the compressed portions in the first side compression region. The second side compression region has a higher area ratio of the compressed portions than the first side compression region, resulting in higher rigidity. The second side compression region is located on the outer side of the absorbent core and is more likely to receive force from the legs. The high rigidity of the second side compression region can suppress deformation of the absorbent core even when subjected to force from the legs. The force from the legs can be transmitted to the center compression region located in the center of the absorbent core's width direction, making it easier for the absorbent core to deform in a convex shape with the center compression region as the base point. On the other hand, the first side compression region is located toward the center of the absorbent core's width direction and is more likely to come into contact with the excretory opening. By reducing the rigidity of the first side compression area that is likely to come into contact with the excretory portion, the fit can be further improved and discomfort when worn can be reduced.

[0019] According to a preferred embodiment, the invention according to embodiment 9 may be the invention according to any one of embodiments 1 to 8, and may have the following features. The absorbent core has low-basis weight sections, which are located on both sides of the central compressed region in the width direction and have a lower basis weight of absorbent material than the surrounding areas. The low-basis weight sections extend in the front-to-back direction in the crotch region. According to this embodiment, when the crotch region is sandwiched between the legs during wear and the absorbent core is subjected to a force directed inward in the width direction, the absorbent core deforms with the central compressed region and low-basis weight sections as base points. Both the central compressed region and low-basis weight sections extend in the front-to-back direction and form deformation base points along the front-to-back direction. With the low-basis weight sections located on both sides of the central compressed region as base points, the central compressed region sandwiched between the low-basis weight sections is likely to deform as a convex apex. This further improves the fit of the absorbent core to the excretory opening.

[0020] According to a preferred embodiment, the invention according to embodiment 10 may have the following features in the invention according to embodiment 9. The low basis weight portion has a convex shape in which the center in the front-to-rear direction of the low basis weight portion bulges outward in the width direction. According to this embodiment, the portion of the low basis weight portion bulging outward in the width direction at the center in the front-to-rear direction is more likely to receive force when pinched by the legs. Force is transmitted from the portion of the low basis weight portion bulging outward in the width direction at the center in the front-to-rear direction to the entire low basis weight portion, and the portions pinched by the convex shapes of the low basis weight portions on both sides are more likely to bulge toward the skin. This makes it easier to achieve convex deformation at the center in the width direction of the absorbent core.

[0021] According to a preferred embodiment, the invention according to embodiment 11 may have the following features in the invention according to embodiment 9 or embodiment 10. The compressed regions have side compressed regions located outward in the width direction from the center compressed region. At least a portion of the low basis weight portion overlaps the side compressed region. According to this embodiment, the side compressed regions are provided overlapping the low basis weight portion, which allows deformation based on the low basis weight portion while suppressing deformation around the low basis weight portion, making it easier to maintain the convex shape at the center in the width direction of the absorbent core.

[0022] (2) Embodiment of the absorbent article Hereinafter, absorbent articles according to embodiments will be described with reference to the drawings. In the following description of the drawings, identical or similar parts are designated by identical or similar reference numerals. However, it should be noted that the drawings are schematic, and the ratios of the dimensions may differ from those of the actual product. Therefore, specific dimensions should be determined with reference to the following description. Furthermore, the drawings may include parts with different dimensional relationships and ratios.

[0023] FIG. 1 is a front view of an absorbent article 10 according to an embodiment, and FIG. 2 is a plan view of the absorbent article 10 in an unfolded state. The plan view shown in FIG. 1 is a view of the absorbent article in an extended state, as seen from the skin side. Note that the extended state in the present invention refers to a state in which the absorbent article 10 is extended to a state in which no wrinkles are formed when a side joining portion 60, which will be described later, is extended. Furthermore, in the present invention, the natural state refers to a state in which, in the case of an absorbent article housed in a package, the absorbent article is removed from the package and left in an atmosphere of 20°C±2°C and a relative humidity of 60%±5%RH for 24 hours. FIG. 3 is a cross-sectional view taken along line AA shown in FIG. 2.

[0024] The absorbent article 10 may be any absorbent article that covers the waist of a wearer, and may be, for example, a disposable diaper. The absorbent article 10 may be a pants-type absorbent article or an open-type (tape-type) absorbent article. This embodiment is a pants-type absorbent article. The absorbent article 10 has a front-to-rear direction L, a width direction W, and a thickness direction T that are perpendicular to each other. The front-to-rear direction L is defined by the direction extending toward the front and rear of the body. In other words, the front-to-rear direction L is the direction extending from front to back in the opened absorbent article 10. The absorbent article 10 also has a thickness direction T that is perpendicular to both the front-to-rear direction L and the width direction W. The thickness direction T extends between a skin side T1 that faces the wearer and a non-skin side T2 that faces away from the wearer.

[0025] The absorbent article 10 has a crotch region S3, a front waist region S1 located in front of the crotch region S3, and a rear waist region S2 located behind the crotch region S3. The front waist region S1 and the rear waist region S2 form waist regions that cover the waist of the wearer. The front waist region S1 is a region that is placed against the wearer's stomach. The rear waist region S2 is a region that is placed against the wearer's back. The crotch region S3 is a region that is located between the front waist region S1 and the rear waist region S2 under the crotch of the wearer.

[0026] The absorbent article 10 may be provided with a pair of side joining sections 60 joining the outer sides of the front waistline region S1 and the rear waistline region S2. The absorbent article 10 is folded in two around a fold line FL located at the center of the absorbent article 10 in the front-to-rear direction L, and the folded parts are joined together by the side joining sections 60 to form a pants-like shape. The fold line FL extends in the width direction W and is used to fold the absorbent article 10 in two so that the skin-side surfaces T1 of the absorbent article 10 face each other. In this embodiment, the fold line FL coincides with the center of the crotch region S3 in the front-to-rear direction L (hereinafter referred to as the crotch center line S3CL). The side joining sections 60 are defined by the portions where the outer sides of the front waistline region S1 and the outer sides of the rear waistline region S2 are joined together, and may extend along the front-to-rear direction L in each of the front waistline region S1 and the rear waistline region S2.

[0027] Here, the outer portion in the present invention refers to a portion occupying a certain range in the width direction W including an edge in the width direction W, and the outer edge refers to an edge in the width direction W. Furthermore, the outer edge in the present invention refers to an edge located on the outer side in the front-to-back direction L, and the inner edge refers to an edge located on the inner side in the front-to-back direction L. Here, FIG. 1 shows a state in which the side joints 60 are joined, and FIG. 2 shows a state in which the side joints 60 are released and the absorbent article 10 is unfolded. With the side joints 60 formed, the absorbent article 10 is formed with a waist opening 62 through which the wearer's waist is passed and a pair of leg openings 66 through which the wearer's legs are inserted. The waist opening 62 is defined by the front edge of the front waist region S1 and the rear edge of the rear waist region S2. The boundary between the front waist region S1 and the crotch region S3 may be defined by the rear end edge of the side joint 60 provided in the front waist region S1, and the boundary between the rear waist region S2 and the crotch region S3 may be defined by the front end edge of the side joint 60 provided in the rear waist region S2.

[0028] The absorbent article 10 has an absorbent core 50 disposed in at least the crotch region S3 and containing an absorbent material. The absorbent core 50 may contain, for example, fluff pulp, superabsorbent polymer (SAP), or a mixture thereof. The absorbent core 50 is disposed in at least the crotch region S3. Preferably, the absorbent core 50 may extend from the front waist region S1 to the rear waist region S2 in the front-to-rear direction L. The absorbent core 50 may be covered by a core wrap (not shown). As shown in FIG. 4, the absorbent core 50 may have a waist region 55 between the front and rear ends of the absorbent core 50, where the length of the absorbent core 50 in the width direction W is shortened. The waist region 55 is located between a front maximum width portion 50FM at the front end of the absorbent core 50 and a rear maximum width portion 50RM at the rear end of the absorbent core 50. The constricted region 55 may have a shortest width portion 55N, which has the shortest widthwise length of the absorbent core 50, and a widening region 56, which is located outside the shortest width portion 55N in the front-to-back direction L and in which the length in the widthwise direction W of the absorbent core 50 increases toward the outside in the front-to-back direction L.

[0029] The absorbent core 50 has a center region R51 located in the center of the front-rear direction L of the absorbent article 10 among five equal regions obtained by dividing the absorbent core in the width direction, side regions R53 located on the widthwise sides of the five equal regions, and an intermediate region R52 located between the center region R51 and the side regions R53. The intermediate regions R52 are located on both sides of the center region R51, and the side regions R53 are located on both sides of the intermediate region R52. At the center of the front-rear direction of the absorbent article, the widthwise lengths of each region are the same. However, in an embodiment having a constricted region 55 as in the present embodiment, the length in the width direction W of the outer end of the absorbent core 50 is longer than the center of the absorbent core 50 in the front-rear direction L, so the lengths in the width direction W of each region at the outer end of the absorbent core 50 are different.

[0030] The absorbent article 10 may have an absorbent main body 40. The absorbent main body 40 may have an absorbent core 50, a liquid-permeable top sheet 41 covering the skin side T1 of the absorbent core 50, a liquid-impermeable back sheet 42 covering the non-skin side T2 of the absorbent core 50, and a non-skin side sheet 43 covering the non-skin side T2 of the back sheet 42. The absorbent main body 40 may be arranged at least in the crotch region S3 and may extend to the front waist region S1 and the rear waist region S2. The top sheet 41 and the non-skin side sheet 43 may be made of nonwoven fabric. The back sheet 42 may be made of film. The absorbent main body 40 may be configured as a separate body from the waist sheet arranged in the waist region.

[0031] The absorbent article 10 has an exterior body 30 that is located closer to the wearer's skin side T2 than the absorbent main body 40 and covers the wearer's waist in the rear waist region S2 and front waist region S1. The exterior body 30 only needs to be located in at least the rear waist region S2 and the front waist region S1, and may also be located across the crotch region S3. The exterior body has multiple waist sheets. The waist sheets are sheets located in the waist region other than the absorbent main body 40. The waist sheets may include a first waist sheet 35 and a second waist sheet 36 that is located closer to the wearer's skin side T2 than the first waist sheet 35. The first waist sheet 35 and the second waist sheet 36 may be made of nonwoven fabric. The second waistline sheet 36 may have a non-folded portion 361 located closer to the skin side T2 than the first waistline sheet 35, and a folded portion 362 folded back to the skin side T1 from the waistline opening 62 (the front end edge of the front waistline region S1 and the rear end edge of the rear waistline region S2). The folded portion 362 of the second waistline sheet 36 may be located on the skin side T1 of the first waistline sheet 35 and the absorbent main body 40.

[0032] 3, the absorbent article 10 is provided with a front joining region R31 that joins the outer body 30 and the absorbent main body 40 on the front waistline region S1 side, and a rear joining region R32 that joins the outer body 30 and the absorbent main body 40 on the rear waistline region S2 side. The front joining region R31 and the rear joining region R32 are arranged on the non-skin side of the absorbent main body 40. The front joining region R31 and the rear joining region R32 are spaced apart in the front-to-rear direction L, and may extend along the width direction W.

[0033] The outer casing 30 may have waist elastic members that stretch in the width direction W. The waist elastic members may be made of rubber thread that stretches in the width direction W or elastic sheets that stretch in the width direction W. In this embodiment, the waist elastic members are made of rubber thread, and multiple waist elastic members may be arranged in each of the front waist region S1 and the rear waist region S2 at intervals in the front-to-back direction L. The waist elastic members only need to be arranged in at least the waist region, and may be arranged across the waist region and the crotch region. In this embodiment, the waist elastic members are arranged across the rear waist region S2 and the crotch region S3, and include leg elastic members 38 arranged along the leg openings 66. The leg elastic members 38 curve from the outer side of the rear waist region S2 in the width direction toward the inside in the width direction W, and then toward the inside in the front-to-back direction (toward the crotch region). Three leg elastic members 38 are provided in the rear waist region S2.

[0034] The waist elastic members may include a front continuous elastic member 31 that is continuously disposed from one end to the other in the width direction of the front waist region S1 and stretches in the width direction, and a rear continuous elastic member 32 that is continuously disposed from one end to the other in the width direction W of the rear waist region S2 and stretches in the width direction. All of the waist elastic members (including the leg elastic members 38) in this embodiment are continuous elastic members.

[0035] Fig. 4 is a plan view of the absorbent core 50, and Figs. 5 and 6 are cross-sectional views of the absorbent core 50 shown in Fig. 4. Fig. 5 is a cross-sectional view of the absorbent core 50 in an extended state, and Fig. 6 is a cross-sectional view of the absorbent core 50 when worn, taken along the line shown in Fig. 4. Figs. 5(A) and 6(A) are cross-sectional views taken along line BB in Fig. 4, and Figs. 5(B) and 6(B) are cross-sectional views taken along line CC. Fig. 7 is an enlarged plan view of part D shown in Fig. 4.

[0036] The absorbent article 10 is provided with a compressed region in which compressed portions that compress at least the absorbent core 50 in the thickness direction T are arranged. The compressed portions may compress only the absorbent core 50, or may compress the core wrap together with the absorbent core 50. For convenience, the compressed portions are illustrated as blackened areas in the cross-sectional view, but in an actual product, they are areas in which the absorbent material is compressed and recessed in the thickness direction. The compressed region is an area in which compressed portions are arranged, and is an area of ​​a certain range that includes compressed portions in a certain pattern. The compressed region may have a single compressed portion (for example, a continuous linear compressed portion) arranged therein, or may have a collection of multiple compressed portions (for example, a grid-like collection of compressed portions described below) arranged therein. The compressed region has a central compressed region R81 extending in the front-to-rear direction L in the center region R51. A central compressed portion 81 is arranged in the central compressed region R81.

[0037] The central compressed region R81 may be a region in which a central compressed portion 81 extending along the front-to-rear direction L is arranged, or may be a region in which a collection of multiple central compressed portions 81 (for example, dot-like, wavy, or linear) is arranged along the front-to-rear direction L. The shape extending in the front-to-rear direction may be linear along the front-to-rear direction L, or may be a shape that has a portion inclined with respect to the front-to-rear direction L, such as a wavy shape, but extends in the front-to-rear direction as a whole. Note that the shape extending in the front-to-rear direction may not only be configured parallel to the front-to-rear direction L, but may also be configured to be slightly inclined with respect to the front-to-rear direction (for example, less than 10 degrees, preferably less than 5 degrees).

[0038] The absorbent article 10 of the present embodiment is configured to improve the fit around the excretory opening and reduce discomfort when worn. There are roughly two configurations for improving the fit around the excretory opening and reducing discomfort when worn. First, the first configuration will be described in detail. In the first configuration, the central compressed region R81 may extend linearly across the crotch center line S3CL. The central compressed portions 81 in the first configuration may be linear and extend parallel to the front-to-back direction L. The linear compressed portions may be continuous or may be arranged intermittently in a dotted pattern. However, the spacing between the intermittently arranged dotted compressed portions is preferably 5 mm or less to prevent the force from being divided between the compressed portions. As shown in FIG. 7, the central compressed region R81 of the present embodiment is a region in which continuous linear central compressed portions 81 extending parallel to the front-to-back direction are arranged, and is a region sandwiched between the outer edges on both sides of the central compressed portions 81.

[0039] According to the first aspect, the central compressed region R81 is disposed in the center region R51 located at the center of the absorbent core 50 in the width direction W, and the center region R51 serves as the deformation base point for the absorbent core 50. The crotch region S3 is pinched between the legs when worn, and is likely to receive a force directed inward in the width direction W. This force presses the crotch region S3 inward in the width direction W, making it prone to deformation with the central compressed region R81 as the base point. The center region R51 deforms in a convex shape with the central compressed region R81 as the base point over a certain range extending linearly in the front-to-back direction L. This improves the fit of the absorbent core 50 around the excretory opening, and reduces discomfort when worn.

[0040] In the second embodiment, the length in the width direction W of the center compressed region R81 is 10% or less of the width direction length of the absorbent core 50 at the crotch center S3CL. In an embodiment in which the length in the width direction W of the center compressed region R81 varies, the maximum width direction length of the center compressed region R81 is only required to be 10% or less of the width direction length of the absorbent core 50 at the crotch center S3CL. According to the second embodiment, the center compressed region R81 serves as a deformation base point for the absorbent core 50 in the center region R51 located at the center of the absorbent core 50 in the width direction W. When worn, the crotch region S3 is pinched between the legs and is susceptible to force acting inward in the width direction W. This force presses the crotch region S3 inward in the width direction, making it susceptible to deformation with the center compressed region R81 as the base point. Deforming convexly with the center compressed region R81 as the base point improves the fit of the absorbent core to the excretory opening and reduces discomfort during wear. Furthermore, the area occupied by the central compressed region R81 is small relative to the entire area in the width direction W of the absorbent core 50. Therefore, force is easily concentrated in the central compressed region R81, and convex deformation of the absorbent core 50 can be easily achieved. Furthermore, the area occupied by the central compressed region R81 is small relative to the entire area in the width direction W of the absorbent core 50, and the deformation base point can be provided while limiting the area of ​​the central compressed region R81. Since convex deformation can be achieved while limiting the area of ​​the area that becomes hard due to the central compressed portion 81, it is possible to soften the contact with the skin, suppress discomfort when worn, and improve the fit of the absorbent core to the excretory opening.

[0041] The absorbent article according to the first aspect may have the configuration of the second aspect, and the absorbent article according to the second aspect may have the configuration of the first aspect. That is, the widthwise length of the central compressed region R81 according to the first aspect may be 10% or less of the widthwise length of the absorbent core at the crotch center S3CL, and the central compressed region R81 according to the second aspect may extend linearly across the center of the crotch region S3 in the front-to-back direction. Preferred embodiments of both the first and second aspects will be described below.

[0042] The absorbent article may be a pants-type absorbent article 10. When putting on the pants-type absorbent article 10, the legs are passed through the leg openings 66 and the absorbent article 10 is pulled up. Therefore, the outer portions of the absorbent core 50 in the crotch region S3 are more likely to come into contact with the legs and are less likely to be pulled up. Therefore, during the putting-on process, the center in the width direction W of the absorbent core 50 (e.g., the center region R51) is more likely to be pulled up than the outer portions of the absorbent core 50 (e.g., the side regions R53), and the center compressed region R81 is more likely to deform into a convex shape toward the skin side T1. Therefore, the center compressed region R81 is more likely to deform into a convex shape toward the skin side, which further improves the fit to the excretory opening.

[0043] The length in the width direction W of the center compressed region R81 may be 10% or less of the width direction length of the absorbent core at the crotch front / rear center S3CL, preferably 4% or less, and more preferably less than 2.5%. The width direction length of the center compressed region R81 may be 1.5% or more of the width direction length of the absorbent core at the crotch front / rear center S3CL. The width direction length of the center compressed region R81 may be 1 mm or more and 10 mm or less, preferably 1 mm or more and 3 mm or less. The center compressed region R81 may be disposed only in the center region R51 and may not extend across the intermediate region R52.

[0044] The central compressed region R81 may be disposed at least in the crotch region S3 and may straddle the crotch centerline S3CL. In another embodiment, a plurality of central compressed regions R81 may be disposed separated in the front-to-back direction L, for example, disposed on the front and back sides of the crotch centerline S3CL. The length of the central compressed region R81 in the front-to-back direction L may be 50% or more of the length of the crotch region S3 in the front-to-back direction L. The central compressed region R81 may be disposed throughout the entire waistband region 55, which is easily pressed inward in the width direction by the legs. Preferably, the central compressed region R81 may be continuous from the front edge to the rear edge of the absorbent core 50. This configuration allows deformation based on the central compressed region R81 to be formed throughout the entire absorbent core 50 in the front-to-back direction L.

[0045] The central compressed portion 81 disposed in the central compressed region R81 may be recessed from the non-skin side T2 toward the skin side T1 of the absorbent core 50. That is, the central compressed portion 81 may be formed by pressing the non-skin side T2 of the absorbent core 50 toward the skin side T1. Because the central compressed portion 81 is recessed from the non-skin side T2 toward the skin side T1 of the absorbent core 50, the density of the skin side region of the absorbent core 50 is high and the density of the non-skin side region of the absorbent core 50 is low in the area where the central compressed portion 81 is provided. Furthermore, the non-skin side region of the absorbent core 50 is recessed in the area where the central compressed portion 81 is provided, and when pressed by the legs or the like, the non-skin side region of the absorbent core 50 is likely to move inward in the width direction W. Therefore, the absorbent core 50 is likely to deform convexly toward the skin side T1, using the central compressed region R81 as a base point, thereby further improving the fit to the excretory opening.

[0046] The center compression region R81 may overlap both the front joining region R31, which joins the outer body 30 and the absorbent main body 40 on the front waistline region S1 side, and the back joining region R32, which joins the outer body 30 and the absorbent main body 40 on the rear waistline region S2 side. According to this embodiment, the center compression region R81 is arranged so as to overlap the front joining region R31 and the back joining region R32, making it easier to form a convex deformation starting from the center compression region R81 over a wide range from the crotch region S3 to the waistline region. In addition, the outer body 30 fits around the waist of the wearer using waistline elastic members, etc. The convex deformation starting from the center compression region R81 is pulled up via the front joining region R31 and the back joining region R32, making it easier to maintain contact with the body.

[0047] At least a portion of the rear continuous elastic member 32 may be arranged so as to overlap at least a portion of the center compressed region R81. The rear continuous elastic member 32 improves the fit of the absorbent core 50, prevents the absorbent core 50 from slipping down, and allows the convexly deformed portion to continue to face the body. Furthermore, contraction of the rear continuous elastic member 32 allows the rear end of the absorbent core 50 to fit better around the waist. Furthermore, at least a portion of the front continuous elastic member 31 may be arranged so as to overlap at least a portion of the center compressed region R81. The front continuous elastic member 31 improves the fit of the absorbent core 50, prevents the absorbent core 50 from slipping down, and allows the convexly deformed portion to continue to face the body. Furthermore, contraction of the front continuous elastic member 31 allows the front end of the absorbent core 50 to fit better around the waist.

[0048] The compressed region may have a side compressed region R82 located further outward in the width direction W than the center compressed region R81. The side compressed region R82 is a region in which the side compressed sections 82 are arranged, and in this embodiment is a combined region of the first side compressed region R821 and the second side compressed region R822. In this embodiment, the widthwise range of the first side compressed region R821 is the range sandwiched between the outer edges on both sides of the lattice-shaped first side compressed section 821. The front-rear range of the first side compressed region R821 is the range sandwiched between the outer edges on both sides of the lattice-shaped first side compressed section 821, and since the first side compressed sections 821 are arranged up to both outer edges of the absorbent core, it is the range sandwiched between the front and rear edges of the absorbent core. Similarly, the front-to-back range of the second side compression region R822 is the range sandwiched between the outer edges on both sides of the lattice-shaped second side compression portion 822, and since the second side compression portion 822 is arranged up to both outer edges of the absorbent core, it is the range sandwiched between the front and rear edges of the absorbent core.

[0049] The shape of the side compressed regions 82 may be different from that of the center compressed region 81. Furthermore, the area ratio of the compressed regions 82 in the side compressed regions R82 may be different from the area ratio of the compressed regions 81 in the center compressed region R81. The area ratio of the compressed regions is the ratio of the area in which the compressed regions are arranged. The area ratio of the compressed regions is calculated by measuring the area of ​​the compressed region (the entire area surrounding the compressed region) and the area of ​​the compressed region (the area of ​​the compressed portion only), and then calculating the ratio by dividing the area of ​​the compressed region by the area of ​​the compressed region. When comparing area ratios, the area of ​​the absorbent core's skin-facing surface may be measured and the ratios on that surface may be compared, or the area of ​​the absorbent core's non-skin-facing surface may be measured and the ratios on that surface may be compared. Furthermore, the side compressed regions R82 may be contiguous with the center compressed region R81, or may be spaced apart from the center compressed region R81 in the width direction W, as in this embodiment. The side compression portions 82 may be recessed from the skin side T1 of the absorbent core 50 toward the non-skin side T2, or may be recessed from the non-skin side T2 of the absorbent core 50 toward the skin side T1 as in this embodiment.

[0050] The length in the width direction W of the side compressed regions R82 may be longer than the length in the width direction W of the center compressed region R81. Because the side compressed regions R82, which are longer in the width direction, are located to the sides of the center compressed region R81, the center compressed region R81, which is relatively shorter in the width direction, can more easily function as the deformation base point that becomes the apex of the convex shape, making it easier to achieve a convex shape for the absorbent core 50. In addition, the deformation of the center compressed region R81 is supported by the side compressed regions R82, which are arranged with a wide width, making it easier to maintain the convex deformation of the absorbent core 50. The side compressed regions R82 may be located in at least one of the side regions R53 and the intermediate region R52, or may also be located in the center region R51.

[0051] The area ratio of the center compression section 81 in the center compression region R81 may be higher than the area ratio of the side compression sections 82 in the side compression region R82. If multiple side compression regions are provided, the comparison is based on the area ratio of any of the side compression regions. That is, the area ratio of the center compression section 81 may be higher than at least one of the area ratio of the first side compression section 821 and the area ratio of the second side compression section 822, and preferably may be higher than the area ratio of the first side compression section 821 and the area ratio of the second side compression section 822.

[0052] The side compression portions 82 arranged in the side compression regions R82 are lattice-shaped in a plan view. The lattice shape may be a lattice shape formed by intersecting continuous straight lines, or a lattice shape formed by intermittently arranged lines (including straight and curved lines) arranged in two intersecting directions. In this embodiment, the side compression portions 82 are composed of a plurality of intermittently arranged curved and straight compression portions, which are arranged in a wave-like pattern extending in the front-to-rear direction, and the combination of these compression portions forms a lattice-shaped compression portion. Because the side compression portions 82 are lattice-shaped, they extend in both the front-to-rear direction L and the width direction W, making it easier to deform the absorbent core 50 into a planar shape rather than a linear shape. The planar deformation of the side compression regions R82 by the lattice-shaped side compression portions 82 makes it easier to continue to support the convex deformation of the center compression region R81 from the sides.

[0053] The side compressed regions R82 may be arranged laterally with respect to at least a portion of the center compressed region R81 in the front-to-back direction L. However, in order to maintain the convex deformation caused by the center compressed region R81 in the crotch region S3, it is preferable that the side compressed regions R82 be arranged over at least the entire area of ​​the crotch region S3 in the front-to-back direction L. Furthermore, in order for the side compressed regions R82 to support the convex deformation caused by the center compressed region R81, they may be preferably arranged laterally with respect to the entire area of ​​the center compressed region R81 in the front-to-back direction L. In this embodiment, the center compressed region R81 is arranged over the entire area of ​​the absorbent core 50 in the front-to-back direction L, and the side compressed regions R82 are also arranged over the entire area of ​​the absorbent core 50 in the front-to-back direction L.

[0054] The side compression region R82 may have a first side compression region R821 and a second side compression region R822 located outboard of the first side compression region R821 in the width direction W. The side compression section 82 may have a first side compression section 821 arranged in the first side compression region R821 and a second side compression section 822 arranged in the second side compression section 822. The shape of the first side compression section 821 may be different from that of the second side compression section 822. The area ratio of the first side compression section 821 may be different from that of the second side compression section 822. The first side compression region R821 may be continuous with the second side compression region R822, or may be spaced apart from the second side compression region R822 in the width direction W as in this embodiment. By providing the first side compressed region R821 and the second side compressed region R822, different deformation base points are formed in each region, and each region deforms into a different shape. Therefore, compared to a configuration in which the entire absorbent core 50 deforms uniformly, each region can deform into a different shape, making it easier to achieve complex deformation that better fits the body. In this embodiment, the first side compressed region R821 and the second side compressed region R822 are spaced apart in the width direction W, and this spaced apart region has lower rigidity than the surrounding areas (the first side compressed region R821 and the second side compressed region R822) and is more likely to become a deformation base point. The center compressed region R81 and the region between the first side compressed region R821 and the second side compressed region R822 become deformation base points, causing the absorbent core 50 to deform into a W-shape as shown in FIG. 6.

[0055] The area ratio of the second side compressed portions 822 in the second side compressed region R822 may be higher than the area ratio of the first side compressed portions 821 in the first side compressed region R821. The second side compressed region R822 has a higher area ratio of compressed portions than the first side compressed region R821, resulting in higher rigidity. The second side compressed region R822 is located on the outer side of the absorbent core and is more susceptible to force from the legs. Because the second side compressed region R822 has high rigidity, deformation of the absorbent core 50 due to force from the legs can be suppressed. The force from the legs can be transmitted to the center compressed region R81 located in the center of the absorbent core in the width direction, making it easier to deform in a convex shape with the center compressed region R81 as the base point. The first side compressed region R821 is located toward the center of the absorbent core 50 in the width direction W and is more likely to come into contact with the excretory opening. By reducing the rigidity of the first side compression region R821 that is likely to come into contact with the excretory portion, the fit can be further improved and discomfort when worn can be reduced.

[0056] The length in the width direction W of the first side compressed region R821 and the length in the width direction W of the second side compressed region R822 may be longer than the length in the width direction W of the center compressed region R81. Furthermore, the length in the width direction W of the second side compressed region R822 may be longer than the length in the width direction W of the first side compressed region R821. By making the length in the width direction W of the second side compressed region R822 relatively long, it becomes easier to transmit force from the legs to the center side of the absorbent core 50 in the width direction. In a modified example, the length in the width direction W of the first side compressed region R821 may be longer than the length in the width direction W of the second side compressed region R822. By making the length in the width direction W of the first side compressed region R821 relatively long, it becomes easier to obtain the effect of supporting the convex deformation of the center compressed region R81. Furthermore, in order to achieve the above-mentioned W-shaped deformation in the crotch region S3, the widthwise length of the compressed region at the crotch center S3CL may be 90% or more of the entire widthwise area of ​​the absorbent core 50 at the crotch center S3CL. This length is the sum of the widthwise length of the center compressed region at the crotch center S3CL and the widthwise length of the side compressed region at the crotch center S3CL. In this embodiment, the first side compressed region R821 is disposed across the center region R51 and the intermediate region R52, and the second side compressed region R822 is disposed across the intermediate region R52 and the side region R53.

[0057] The second side compressed region R822 may be located near the outer edge of the absorbent core 50 at the crotch center S3CL. More specifically, the distance between the second side compressed region 822 and the outer edge of the absorbent core 50 may be 5 mm or less. With this configuration, when leg force is applied in the crotch region S3, the force can be transmitted to the center of the absorbent core 50 while maintaining the shape of the second side compressed region R822. Furthermore, in a configuration having a waisted region 55 as in this embodiment, the compressed region need not be located on the outer side of the absorbent core 50 at the rear maximum width portion 50RM, and need not be located on the outer side of the absorbent core 50 at the front maximum width portion 50FM. The outer side of the absorbent core 50 at the front maximum width portion 50FM is likely to come into contact with the groin, and the outer side of the absorbent core 50 at the rear maximum width portion 50RM is likely to come into contact with the bulge of the buttocks. By not providing compression parts in the areas that come into contact with the groin and buttocks, the rigidity of these areas is prevented from increasing, improving the wearing comfort.

[0058] The absorbent core 50 may have low-basis weight sections 51, which are located on both sides of the central compressed region R81 in the width direction W and have a lower basis weight of absorbent material than the surrounding areas. The low-basis weight sections 51 are sections in which the basis weight of the absorbent material is lower than the surrounding areas (e.g., the areas adjacent to the width direction W or the areas adjacent to the front-rear direction L). The low-basis weight sections 51 may contain absorbent material, or may not contain absorbent material (so-called slits). In this embodiment, the low-basis weight sections 51 are formed by slits and are formed throughout the entire thickness direction T of the absorbent core 50. A low-basis weight section formed by slits can easily function as a deformation base point for the absorbent core 50. On the other hand, a low-basis weight section containing absorbent material is less likely to lose its shape when absorbing body fluids, making it easier to maintain the deformed state of the absorbent core even during long-term use. Furthermore, a low-basis weight section containing absorbent material can also diffuse body fluids using the absorbent material in the low-basis weight sections, improving liquid diffusibility without interrupting the diffusion of body fluids. The width of the low basis weight portion (the length in the direction perpendicular to the direction in which the low basis weight portion extends) is not limited, but may be, for example, 3 mm or more, preferably 5 mm or more, and more preferably greater than the thickness of the absorbent core 50.

[0059] The low basis weight portions 51 extend in the front-to-back direction L in the crotch region S3 on both sides of the center compressed region R81 in the width direction W. When the crotch region S3 is sandwiched between the legs during wear and receives a force inward in the width direction W, the absorbent core 50 deforms with the center compressed region R81 and the low basis weight portions 51 as base points. Both the center compressed region R81 and the low basis weight portions 51 extend in the front-to-back direction L and form base points of deformation along the front-to-back direction L. With the low basis weight portions 51 located on both sides of the center compressed region R81 as base points, the center compressed region R81 sandwiched between the low basis weight portions 51 is likely to deform as a convex apex. This further improves the fit of the absorbent core 50 around the excretory opening. In a configuration having a pair of low basis weight portions 51, the low basis weight portions 51 have low rigidity and are likely to serve as base points of deformation. The central compressed region R81 and the low basis weight portion 51 act as deformation base points, causing the absorbent core 50 to deform into a W shape as shown in Fig. 6. In this embodiment, the low basis weight portion 51 is disposed in the region between the first side compressed region R821 and the second side compressed region R822 at the crotch front and rear center S3CL, making it easier to function as a deformation base point.

[0060] The low basis weight portion 51 may straddle the crotch front / rear center line S3CL. With this configuration, the low basis weight portion 51 is provided across the crotch front / rear center line S3CL, which is susceptible to leg force, making the low basis weight portion 51 more susceptible to deformation under force. The low basis weight portion 51 may also be located in the shortest width portion 55N. With this configuration, the low basis weight portion 51 is provided in the shortest width portion 55N, which is susceptible to leg force, making the low basis weight portion 51 more susceptible to deformation under force.

[0061] The low basis weight section 51 may have a convex shape in which the center in the front-to-back direction L of the low basis weight section 51 bulges outward in the width direction W. The portion of the low basis weight section 51 bulging outward in the width direction W at the center in the front-to-back direction L is more likely to receive force when pinched by the legs. Force is transmitted from the portion of the low basis weight section 51 bulging outward in the width direction W at the center in the front-to-back direction L to the entire low basis weight section 51, and the portions pinched by the convex shapes of the low basis weight sections 51 on both sides tend to bulge toward the skin side T1. This makes it easier to achieve convex deformation at the center in the width direction of the absorbent core.

[0062] In a modified example, the low basis weight portion 51 may be linear in the front-to-rear direction L. The length of the low basis weight portion 51 in the front-to-rear direction L may be shorter than the length of the center compressed region R81 in the front-to-rear direction L. The low basis weight portion 51 may be disposed only within the constricted region 55. In other words, the low basis weight portion 51 does not have to be disposed in the rear maximum width portion 50RM or the front maximum width portion 50FM. In this embodiment, the front edge of the low basis weight portion 51 is located in the widened region 56 located forward of the shortest width portion 55N, and the rear edge of the low basis weight portion 51 is located in the widened region 56 located rearward of the shortest width portion 55N.

[0063] At least a portion of the low basis weight portion 51 may overlap the side compressed region R82. The center compressed region sandwiched between the low basis weight portions 51 is likely to deform as a convex apex, with the low basis weight portions 51 located on both sides of the center compressed region R81 as the base point. Since the side compressed region R82 overlaps the low basis weight portion 51, deformation is achieved with the low basis weight portion 51 as the base point, while suppressing deformation around the low basis weight portion 51, making it easier to maintain the convex shape at the center of the absorbent core 50 in the width direction. The low basis weight portion 51 may overlap the first side compressed region R821 or the second side compressed region R822. In this embodiment, the low basis weight portion 51 overlaps both the first side compressed region R821 and the second side compressed region R822. Therefore, the low basis weight portion 51, the first side compressed region R821 and the second side compressed region R822 are more likely to work together, and the desired deformation state of the absorbent core can be achieved as a whole.

[0064] A second low basis weight section 52 may be provided in front of the pair of low basis weight sections 51, spaced apart from the low basis weight sections 51. The second low basis weight section 52 is arranged across the center of the absorbent core 50 in the width direction. The second low basis weight section 52 separates deformation that originates from the pair of low basis weight sections 51, preventing the deformation from being transmitted to the front side. This makes it easier to arrange the front end of the absorbent core 50 in a planar shape that covers the abdomen.

[0065] Although the present invention has been described in detail using the above-described embodiments, it is clear to those skilled in the art that the present invention is not limited to the embodiments described herein. The present invention can be embodied in various modifications and variations without departing from the spirit and scope of the present invention, as defined by the claims. Therefore, the description in this specification is for illustrative purposes only and does not limit the present invention in any way. The absorbent article of the present embodiment can be suitably used in absorbent articles intended to absorb small amounts of urine. For example, some absorbent articles intended to absorb large amounts of urine have an absorbent core positioned away from the body to form a space for accommodating excrement. However, absorbent articles intended to absorb small amounts of urine do not necessarily require a space for accommodating excrement, and are often required to position the absorbent core close to the excretory opening to quickly absorb urine and improve wearing comfort. Therefore, the absorbent article of the present embodiment can be suitably used in absorbent articles intended to absorb small amounts of urine. [Explanation of symbols]

[0066] 10: Absorbent articles 30: Exterior body 40: Absorbent body 50: Absorption core 51:Low basis weight part 81: Center compression section (compression section) 82: Side compression section (compression section) L: Anteroposterior direction R31: Anterior junctional region R32: Posterior junction area R51: Center area R81: Center compression area R82: Side compression area R821: First side compression area R822: Second side compression area S1: Front waist area S2: Rear waist area S3: Inseam area S3CL: Inseam front and back center T: Thickness direction T1: Skin side T2: Non-skin side W: Width direction

Claims

1. a front-rear direction, a width direction, and a thickness direction which are orthogonal to each other; a crotch region including a center in the front-to-back direction, a front waist region located forward of the crotch region, and a rear waist region located rearward of the crotch region; an absorbent core disposed in at least the crotch region and having an absorbent material; and a compressed region in which compressed portions that compress at least the absorbent core in the thickness direction are arranged, The compressed region has a center compressed region extending in the front-rear direction in a center region located in the center of the regions obtained by dividing the absorbent core into five equal regions in the width direction, The absorbent article has a central compressed region that extends linearly across the center of the crotch region in the front-to-rear direction.

2. a front-rear direction, a width direction, and a thickness direction which are orthogonal to each other; a crotch region including a center in the front-to-back direction, a front waist region located forward of the crotch region, and a rear waist region located rearward of the crotch region; an absorbent core disposed in at least the crotch region and having an absorbent material; and a compressed region in which compressed portions that compress at least the absorbent core in the thickness direction are arranged, The compressed region has a center compressed region extending in the front-rear direction in a center region located in the center of the regions obtained by dividing the absorbent core into five equal regions in the width direction, An absorbent article, wherein the widthwise length of the central compressed region is 10% or less of the widthwise length of the absorbent core at the center of the front-to-rear direction of the crotch region.

3. an absorbent body having the absorbent core, a liquid-permeable top sheet covering the skin side of the absorbent core, and a liquid-impermeable back sheet covering the non-skin side of the absorbent core; an outer body that is positioned closer to the wearer's skin than the absorbent main body and that covers the wearer's waist in the rear waist region and the front waist region, 3. The absorbent article of claim 1, wherein the center compression region overlaps both a front joining region that joins the outer body and the absorbent main body on the front waist region side and a rear joining region that joins the outer body and the absorbent main body on the rear waist region side.

4. 3. The absorbent article according to claim 1, wherein the central compressed region is continuous from the front edge to the rear edge of the absorbent core.

5. 3. The absorbent article according to claim 1, wherein the compressed portion of the central compressed region is recessed from the non-skin side to the skin side of the absorbent core.

6. The compression region has a side compression region located outside the center compression region in the width direction, The absorbent article according to claim 1 or 2, wherein the widthwise length of the side compressed regions is longer than the widthwise length of the center compressed region.

7. The absorbent article according to claim 6 , wherein the compression portions arranged in the side compression regions have a lattice pattern in a plan view.

8. The side compression region has a first side compression region and a second side compression region located outside the first side compression region in the width direction, The absorbent article according to claim 6 , wherein an area ratio of the compressed portions in the second side compressed region is higher than an area ratio of the compressed portions in the first side compressed region.

9. the absorbent core has low basis weight portions disposed on both sides of the central compressed region in the width direction, the low basis weight portions having a lower basis weight of absorbent material than the surrounding area, The absorbent article according to claim 1 or 2, wherein the low basis weight portion extends in the front-to-rear direction in the crotch region.

10. The absorbent article according to claim 9 , wherein the low basis weight portion has a convex shape in which a center of the low basis weight portion in the front-rear direction bulges outward in the width direction.

11. The compression region has a side compression region located outside the center compression region in the width direction, The absorbent article of claim 9 , wherein at least a portion of the low basis weight portion overlaps the side compression region.

Images