Absorbent articles

Abstract

To inhibit a solid content of soft stool from being exposed to an inner surface side in a thickness direction D from an aperture of an aperture sheet in an absorbent article by providing a filtration sheet in the absorbent article.SOLUTION: In a soft stool pad 100 (absorbent article), a top sheet 10, a filtration sheet 20, and an absorber 30 are stacked in a thickness direction D in order from a side close to skin of a wearer. The top sheet 10 is formed with many apertures 11. The filtration sheet 20 is formed with dents 21 recessed toward a side of the absorber 30 from a side of a surface facing the top sheet 10, in portions overlapping the apertures 11 in a plan view.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to absorbent articles.

Background Art

[0002] As an inner pad that is used by being stacked inside a disposable diaper, a soft stool pad mainly for absorbing soft stools is known. A general inner pad is configured mainly for absorbing urine, which is a liquid. On the other hand, since soft stools contain solid components, the soft stool pad needs to appropriately absorb the liquid components of the soft stools while preventing clogging due to the solid components.

[0003] Therefore, for the soft stool pad, an apertured sheet having a plurality of large holes for transferring the solid components of the soft stools to the lower layer is used for the topsheet that directly touches the skin of the wearer.Since the solid components of the soft stools are suppressed from staying on the topsheet, it is possible to reduce the chance of skin trouble caused by the continuous contact between the solid components staying on the topsheet and the skin (see, for example, Patent Documents 1 and 2).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] The aforementioned soft stool pads have an absorbent layer below the perforated sheet that absorbs the liquid component of soft stool. However, some soft stool pads also have a filtering sheet layered between the perforated sheet and the absorbent layer to filter out the solid component of the soft stool and transfer the liquid component to the absorbent layer below. Therefore, such soft stool pads have a structure in which the perforated sheet, filtering sheet, and absorbent layer are layered in this order.

[0006] However, while perforated sheets can allow the solid components of soft stool to pass through the perforations, these components tend to remain on the surface of the filter sheet. Consequently, the solid components are exposed from the perforations to the inner side in the thickness direction (the side facing the wearer's skin), making it easy for the solid components to remain in contact with the skin.

[0007] The present invention has been made in view of the above circumstances, and aims to provide an absorbent article having a filter sheet that can prevent the solid components of soft stool from being exposed to the inner surface in the thickness direction through the openings of the perforated sheet. [Means for solving the problem]

[0008] The present invention relates to an absorbent article in which a top sheet, a filter sheet, and an absorbent body are laminated in the thickness direction, in order from the side closest to the wearer's skin, the top sheet has a number of openings, and the filter sheet has recesses formed in the portion that overlaps the openings in a plan view, extending from the side facing the top sheet toward the absorbent body. [Effects of the Invention]

[0009] The absorbent article according to the present invention has a filter sheet, which can prevent the solid components of soft stool from being exposed to the inner surface in the thickness direction through the openings of the perforated sheet. [Brief explanation of the drawing]

[0010] [Figure 1] This is a plan view showing the inner surface of the soft stool pad. [Figure 2] Figure 1 is a cross-sectional view showing the thickness direction D of the soft stool pad along line AA. [Figure 3] Figure 2 is a schematic diagram showing a detailed cross-section of the soft stool pad. [Figure 4] This is a schematic diagram, equivalent to Figure 3, showing an example of a method for forming depressions in a filter sheet. [Figure 5] This is a schematic diagram, equivalent to Figure 3, illustrating the function of a soft stool pad. [Figure 6] This is a schematic diagram, corresponding to Figure 3, showing a detailed cross-section of the soft stool pad according to the second embodiment (Embodiment 2) of the present invention. [Figure 7] This is a schematic diagram corresponding to Figure 3, showing a detailed cross-section of the soft stool pad according to the third embodiment (Embodiment 3) of the present invention. [Figure 8] This is a plan view showing the filter sheet in a soft stool pad according to the fourth embodiment (Embodiment 4) of the present invention. [Figure 9] This is a schematic diagram, equivalent to Figure 6, showing a detailed cross-section of a soft stool pad equipped with a filter sheet, as shown in Figure 8. [Figure 10] This is a schematic diagram, corresponding to Figure 6, showing a detailed cross-section of the soft stool pad according to the fifth embodiment (Embodiment 5) of the present invention. [Modes for carrying out the invention]

[0011] Embodiments of the absorbent article according to the present invention will be described below with reference to the drawings.

[0012] <Embodiment 1> [composition] Figure 1 is a plan view showing the inner surface of the soft stool pad 100, Figure 2 is a cross-sectional view showing the cross-section in the thickness direction D along line AA of the soft stool pad 100 shown in Figure 1, and Figure 3 is a schematic diagram showing the details of the cross-section of the soft stool pad 100 shown in Figure 2.

[0013] The illustrated soft feces pad 100 is an embodiment of the absorbent article according to the present invention, and is particularly suitable for absorbing soft feces. The soft feces pad 100 is used by being overlapped on a disposable diaper (hereinafter referred to as a diaper). When the diaper is worn by a wearer, it is used by being overlapped on the inner surface side of the diaper, which is the side closer to the skin surface of the wearer. The soft feces pad 100 is an inner pad particularly suitable for absorbing the soft feces of the wearer. Note that the soft feces pad 100 is not limited to being used by being overlapped on a disposable diaper, and may be used by being overlapped on a non-disposable diaper, for example, a cloth-type diaper.

[0014] The soft feces pad 100 is formed such that the ventral part 110, the crotch part 120, and the dorsal part 130 are connected in the length direction L. In the plan view shown in FIG. 1, the direction orthogonal to the length direction (front-rear direction) L is defined as the width direction W. The ventral part 110 corresponds to a part that mainly covers the lower abdomen on the ventral side, which is the front of the wearer of the diaper. The crotch part 120 corresponds to a part that mainly covers the groin of the wearer. The dorsal part 130 corresponds to a part that mainly covers the buttocks of the wearer.

[0015] Note that there are no boundaries or structural differences between the dorsal part 130 and the crotch part 120, or between the ventral part 110 and the crotch part 120. For the sake of convenience in specifying and explaining the region of the soft feces pad 100, it is merely divided into three roughly parts: the dorsal part 130, the crotch part 120, and the ventral part 110.

[0016] As shown in FIG. 2, in the soft feces pad 100, in the thickness direction D, the topsheet ^{10}, the filter sheet 20, the absorbent body 30, and the backsheet 40 are laminated in this order. The topsheet 10 is disposed on the side closest to the skin surface of the wearer in the thickness direction D (hereinafter, sometimes also referred to as the inner side or the skin surface side). The backsheet 40 is disposed on the side farthest from the skin surface of the wearer in the thickness direction D (hereinafter, sometimes also referred to as the outer side or the non-skin surface side).

[0017] In addition, on both sides in the width direction W of the soft stool pad 100, three-dimensional gathers 60 are respectively provided to cover both sides in the width direction W of the top sheet 10 from above (inner surface side) in FIG. 2 of the top sheet 10. The outer end in the width direction W of the three-dimensional gather 60 is joined to the back sheet 40, and a thread rubber 61 is fixed to the inner end in the width direction W. Due to the elastic force of the thread rubber 61, it is formed to rise on the inner side in the width direction W and the inner surface side in the thickness direction D. The three-dimensional gather 60 is liquid-impermeable.

[0018] (Top sheet) The top sheet 10 is a liquid-permeable sheet. As shown in FIG. 1, a large number of apertures 11 penetrating in the thickness direction D are formed. The apertures 11 allow the fixed components (solids) of the soft stool discharged onto the top sheet 10 to pass through to the lower layer of the top sheet 10 in the thickness direction D. The apertures 11 are formed, for example, in an oval shape whose dimension in the length direction L is longer than the dimension in the width direction W. The oval of the aperture 11 has, as an example, a dimension of 3 [mm] in the width direction W and a dimension of 4 [mm] in the length direction L. The specific dimensions of the apertures 11 are not limited to this example, and may be formed in other dimensions as long as they are dimensions that allow the solids of the soft stool to pass through to a certain extent. <0000I02> Also, the apertures 11 are not limited to an oval shape that is long in the length direction L, and may be an oval that is long in the width direction W, or may be a perfect circle with equal dimensions in the length direction L and the width direction W. Further, it is not limited to a circle, and may be a rhombus, a rectangle, or other polygons.

[0020] The apertures 11 of the top sheet 10 are formed in an oblique direction inclined with respect to the length direction L and the width direction W respectively. That is, as shown in FIG. 1, a large number of apertures 11 are arranged in a staggered pattern. Note that the top sheet 10 is not limited to one in which the apertures 11 are arranged in a staggered pattern, and may be one in which the apertures 11 are arranged in a grid pattern aligned in the length direction L and the width direction W. <00001O8> Furthermore, a top sheet 10 in which the openings 11 are arranged in a staggered pattern can increase the density of the openings 11 compared to a top sheet in which the openings 11 are arranged in a grid pattern, making it easier to guide soft stool into the openings 11.

[0022] (Filter sheet) The filter sheet 20 is positioned directly beneath the top sheet 10. The filter sheet 20 is permeable to liquids. The filter sheet 20 filters out the solid components of the soft stool that have passed through the openings 11 of the top sheet 10, and the liquid components of the soft stool that have passed through the openings 11 and the parts 12 other than the openings 11 (see Figure 3), allowing the liquid components to pass to the lower layer. The filter sheet 20 is formed with a bulk dimension D in the thickness direction, for example, about 10 to 20 mm.

[0023] As shown in Figure 3, the filter sheet 20 has recesses 21 formed in the thickness direction D toward the absorbent 30 from the side facing the top sheet 10 in a plan view, in the portions that overlap with the openings 11 of the top sheet 10. On the other hand, the filter sheet 20 does not have recesses 21 formed in the portions that overlap with the portions 12 other than the openings 11 of the top sheet 10 in a plan view. The recesses 21 are formed with a depth of, for example, 5 to 10 [mm] along the thickness direction D. Note that the depth of the recesses 21 is not limited to 5 to 10 [mm], and may be shallower than 5 [mm], but at least 1 [mm], and may be deeper than 10 [mm], but must be at least shorter than the total length (total thickness dimension) of the filter sheet 20 in the thickness direction D.

[0024] The depression 21 may be formed by pressing a mold with a protrusion formed at a position corresponding to the depression 21 onto the filter sheet 20, thereby causing plastic deformation due to the pressure load or heat, or it may be formed by removing the composition of the filter sheet 20 that was filling the depression 21.

[0025] Figure 4 is a schematic diagram equivalent to Figure 3, showing an example of a method for forming a depression 21 in the filter sheet 20. In addition to the method described above, the depression 21 in the filter sheet 20 can also be formed by, for example, as shown in Figure 4, forming the filter sheet 20 as a two-layer structure by stacking an upper filter sheet 25 and a lower filter sheet 26 in the thickness direction D, forming a through hole 22 that penetrates in the thickness direction D in the portion of the upper filter sheet 25 corresponding to the opening 11 of the top sheet 10 before stacking, as shown in the upper part of Figure 4, and then, as shown in the lower part of Figure 4, stacking a flat lower filter sheet 26 without holes or depressions on the upper filter sheet 25, thereby blocking the bottom of the through hole 22 with the upper surface 26a of the lower filter sheet 26 to form the depression 21. Note that the filter sheet 20 may have a structure of three or more layers in addition to the two-layer structure described above.

[0026] The top sheet 10 and the filter sheet 20 are joined not only at both ends of the top sheet 10 in the width direction W, but also at multiple locations distributed in a plan view by heat-seal embossing, so that the openings 11 and recesses 21 do not shift position. In addition to heat-seal embossing, other heat welding methods such as ultrasonic embossing may be used to join the top sheet 10 and the filter sheet 20.

[0027] (Absorbent) As shown in Figure 2, the absorbent body 30 comprises an absorbent member 31 and a packaging body 32. The absorbent member 31 is made of fibrous pulp intertwined with granular superabsorbent polymers (SAP), and the SAP absorbs moisture upon contact and swells, thereby retaining moisture. The packaging body 32 encloses the absorbent member 31 and is made of a liquid-permeable material such as crepe paper. Note that the absorbent body 30 may be made only of the absorbent member 31 and not enclosed in the packaging body 32.

[0028] (Back seat) The backsheet 40 is impermeable to liquids, preventing urine discharged to the inner surface of the soft stool pad 100 and the liquid components of soft stool from penetrating and leaking outward beyond the backsheet 40 in the thickness direction D.

[0029] [Effect] Figure 5 is a schematic diagram equivalent to Figure 3 illustrating the function of the soft stool pad 100. The soft stool pad 100 is attached to the inside of a disposable diaper with the top sheet 10 facing the wearer's skin (with the back sheet 40 facing the inside of the disposable diaper). As a result, when the soft stool pad 100 is attached to the wearer, the top sheet 10 is in contact with the wearer's skin.

[0030] When the wearer excretes soft stool, it is initially received by the top sheet 10, but as shown in Figure 5, it passes through the openings 11 formed in the top sheet 10 and moves to the lower filter sheet 20. Here, the filter sheet 20 has a recess 21 formed in the thickness direction D at a position corresponding to the openings 11 in the top sheet 10, that is, in the plan view shown in Figure 1, where it overlaps with the openings 11. Therefore, the soft stool that passes through the openings 11 is dropped into the recess 21 of the filter sheet 20.

[0031] Then, the solid portion 210 of the soft stool that falls into the depression 21 is retained in the depression 21 by the filtering action of the filter sheet 20, while the liquid component of the soft stool passes through the filter sheet 20 and moves to the absorbent material 30 in the lower layer, as shown by the dashed arrow in Figure 5, where it is absorbed and retained.

[0032] Thus, in this embodiment, the soft stool pad 100 allows the solid portion 210 of the soft stool that has passed through the opening 11 of the top sheet 10 to fall into the depression 21. As a result, the solid portion 210 that has fallen into and been retained in the depression 21 does not come into contact with the inner surface in the thickness direction D from the opening 11, or its exposure is suppressed. Consequently, the soft stool pad 100 can keep the solid portion 210 of the soft stool from coming into contact with the wearer's skin, thereby preventing or suppressing skin problems that may occur due to continuous contact of soft stool with the skin.

[0033] <Embodiment 2> [composition] Figure 6 is a schematic diagram, equivalent to Figure 3, showing a detailed cross-section of the soft stool pad 300 according to the second embodiment (Embodiment 2) of the present invention.

[0034] The illustrated soft stool pad 300 is one embodiment of the absorbent article according to the present invention, and is particularly suitable for absorbing soft stools. The soft stool pad 300 is the same as the soft stool pad 100 of Embodiment 1, except that, as shown in the upper part of Figure 6, an absorbent sheet 50 (hereinafter referred to as SAP sheet 50) is laminated and arranged between the filter sheet 20 and the absorbent body 30 in the thickness direction D. Therefore, the explanation of the configuration and effects of the soft stool pad 300 of Embodiment 2, excluding the SAP sheet 50, will be omitted.

[0035] (SAP sheet) The SAP sheet 50 is formed by sandwiching granular SAP between liquid-permeable sheets made of liquid-permeable material on the inner and outer sides in the thickness direction D, respectively, to form a sheet. In the SAP sheet 50 used in the soft stool pad 300, in a plan view of the soft stool pad 300 (corresponding to Figure 1), the SAP is arranged in the portion 52 that overlaps the portion 12 other than the opening 11 of the top sheet 10, and the SAP is not arranged in the portion 51 that overlaps the opening 11.

[0036] [Effect] The soft stool excreted by the wearer passes through the openings 11 formed in the top sheet 10 and moves to the lower filter sheet 20, where the soft stool that has passed through the openings 11 falls into the depressions 21 in the filter sheet 20.

[0037] Then, the solid portion 210 of the soft stool that falls into the depression 21 is retained in the depression 21 by the filtering action of the filter sheet 20, while the liquid component of the soft stool diffuses inside the filter sheet 20 and reaches the SAP sheet 50, as shown by the dashed arrow in the lower part of Figure 6.

[0038] Here, since no SAP is placed in the portion 51 of the SAP sheet 50 that overlaps with the opening 11, the liquid component that reaches the portion 51 that overlaps with the opening 11 permeates the liquid-permeable sheet of the SAP sheet 50, moves to the absorbent layer 30 below, and is absorbed and held by the absorbent layer 30.

[0039] On the other hand, the liquid component that reaches the portion 52 overlapping the portion 12 other than the opening 11 is absorbed and retained by the SAP placed in the SAP sheet 50. At this time, the SAP in the SAP sheet 50 swells due to the absorption of moisture, as shown in the lower part of Figure 6, and the increase in volume due to swelling pushes up the portion of the filter sheet 20 that overlaps the portion 12 other than the opening 11 towards the inner surface in the thickness direction D.

[0040] As a result, the portion of the top sheet 10 that overlaps with the pushed-up portion of the filter sheet 20, that is, the portion 12 of the top sheet 10 other than the opening 11, is pushed up toward the inner surface in the thickness direction D, and its position toward the inner surface in the thickness direction D is raised relative to the opening 11 that overlaps with the depression 210 in which the solid portion of the soft stool is retained.

[0041] As a result, the soft stool pad 300 can keep the soft stool even further away from the wearer's skin compared to the soft stool pad 100 of Embodiment 1.

[0042] In this embodiment, the SAP sheet 50 in the soft stool pad 300 does not necessarily have SAP arranged over the entire area overlapping the portion 12 of the top sheet 10 other than the opening 11.

[0043] Furthermore, in the soft stool pad 300 of this embodiment, the SAP sheet 50 does not need to have any SAP placed in the portion 51 that overlaps with the opening 11; it is sufficient that a relatively larger amount of SAP is placed in the portion 52 that overlaps with the portion 12 other than the opening 11 (the portion that does not overlap with the opening 11) than in the portion 51 that overlaps with the opening 11.

[0044] <Embodiment 3> [composition] Figure 7 is a schematic diagram, equivalent to Figure 3, showing a detailed cross-section of the soft stool pad 400 according to the third embodiment (embodiment 3) of the present invention.

[0045] The illustrated soft stool pad 400 is one embodiment of the absorbent article according to the present invention, and is particularly suitable for absorbing soft stools. The soft stool pad 400 is the same as the soft stool pad 100 of Embodiment 1, except that, as shown in Figure 7, a recess 33 is formed in the surface 30a of the absorbent body 30 (the surface in contact with the filter sheet 20) in the portion that overlaps with the depression 21 of the filter sheet 20 in a plan view, and is recessed in the thickness direction D from the side of the surface facing the filter sheet 20. Therefore, for the soft stool pad 400 of Embodiment 3, the explanation of the configuration and effects excluding the recess 33 will be omitted.

[0046] In Figure 7, the bottom 27 of the recess 21 of the filter sheet 20 is depicted as protruding downward (towards the outer surface) toward the recess 33 of the absorbent 30. However, the bottom 27 of the recess 21 of the filter sheet 20 is not formed to protrude when the filter sheet 20 is placed on top of the absorbent 30. Rather, the bottom 27 of the recess 21 of the filter sheet 20 sags downward due to its own weight, appearing to have entered the recess 33. However, the bottom 27 of the recess 21 of the filter sheet 20 may be formed to protrude toward the absorbent 30 when the filter sheet 20 is placed on top of the absorbent 30.

[0047] [Effect] The soft stool excreted by the wearer passes through the openings 11 formed in the top sheet 10 and moves to the lower filter sheet 20, where the soft stool that has passed through the openings 11 falls into the depressions 21 in the filter sheet 20.

[0048] Then, the solid portion 210 of the soft stool that falls into the depression 21 is retained in the depression 21 by the filtering action of the filter sheet 20. However, since a recess 33 is formed in the part of the absorbent material 30 that overlaps the depression 21, the bottom 27 of the depression 210, acting on the weight of the solid portion 210, is stretched so as to protrude into the recess 33.

[0049] As a result, the soft stool pad 400 can have a longer overall length (depth) in the thickness direction D of the recess 21, and can keep the soft stool even further away from the wearer's skin compared to the soft stool pad 100 of Embodiment 1.

[0050] In this embodiment, the indentations 33 of the absorbent material 30 in the soft stool pad 400 may be formed as scattered in isolation from other indentations 33, similar to the depressions 21 in the filter sheet 20, or they may be formed as groove-shaped slits connected to adjacent indentations 33. If the indentations 33 of the absorbent material 30 in the soft stool pad 400 are formed as scattered in isolation from other indentations 33, they can be formed, for example, by embossing.

[0051] <Embodiment 4> [composition] Figure 8 is a plan view showing the filter sheet 20' in the soft stool pad 500 of the fourth embodiment (Embodiment 4) of the present invention, and Figure 9 is a schematic diagram corresponding to Figure 6, showing a detailed cross-section of the soft stool pad 500 equipped with the filter sheet 20' shown in Figure 8.

[0052] The illustrated soft stool pad 500 is one embodiment of the absorbent article according to the present invention, and is particularly suitable for absorbing soft stools. The soft stool pad 500 is the same as the soft stool pad 100 of Embodiment 1, except that the filter sheet 20' is different from the filter sheet 20, as shown in the upper part of Figure 9. Therefore, for the soft stool pad 500 of Embodiment 4, the explanation of the configuration and effects excluding the filter sheet 20' will be omitted.

[0053] The filter sheet 20' has a notch 24 formed along the thickness direction D on the surface 20a of the filter sheet 20 that is in contact with the top sheet 10, which was originally a recess 21 formed in the filter sheet 20. The notch 24 is formed to a depth shorter than the total length D of the filter sheet 20' in the thickness direction D, as shown in the upper part of Figure 9. In the plan view shown in Figure 8, the notch 24 is formed to extend linearly along the length direction L of the soft stool pad 500, for example. The length direction L of the soft stool pad 500 is the same as the length direction L of the soft stool pad 100 shown in Figure 1.

[0054] In Figure 8, the filter sheet 20' is shown to have seven notches 24, but this only shows a portion of the notches 24. The number of notches 24 in the filter sheet 20' corresponds to the spacing of the openings 11 along the width direction W in the soft stool pad 500, and they are formed to overlap all of the openings 11 in a plan view.

[0055] [Effect] The soft stool excreted by the wearer passes through the opening 11 formed in the top sheet 10 and moves to the lower filter sheet 20'. At this time, before the soft stool arrives, the notch 24 in the filter sheet 20' is closed, as shown in the upper part of Figure 9. However, due to the weight of the soft stool that has arrived through the opening 11, the notch 24 opens and functions as a depression 21, as shown in the lower part of Figure 9, and the soft stool falls into the depression 21. Of the soft stool that falls into the depression 21, the solid portion 210 is retained in the depression 21 by the filtering action of the filter sheet 20', and the liquid portion is absorbed by the absorbent material 30.

[0056] As a result, the soft stool pad 500 can keep the soft stool away from the wearer's skin, similar to the soft stool pad 100 of Embodiment 1.

[0057] In this embodiment, the notches 24 in the filter sheet 20' of the soft stool pad 500 are formed along the length direction L, as shown in Figure 8. However, the notches 24 may also be formed along the width direction W, or they may extend in an oblique direction inclined to the length direction L and the width direction W, respectively. In this case, it is preferable from the viewpoint of correspondence with the openings 11 that the notches 24 are formed extending in an oblique direction corresponding to the staggered arrangement of the openings 11. The above-described embodiments of the notches 24 are also applicable to the following Embodiment 5.

[0058] <Embodiment 5> [composition] Figure 10 is a schematic diagram, equivalent to Figure 6, showing a detailed cross-section of the soft stool pad 600 according to the fifth embodiment (Embodiment 5) of the present invention. The illustrated soft stool pad 600 is an embodiment of the absorbent article according to the present invention, and is particularly suitable for absorbing soft stools.

[0059] The soft stool pad 600 is the same as the soft stool pad 300 of Embodiment 2, but with the filter sheet 20' from the soft stool pad 500 of Embodiment 4 applied instead of the filter sheet 20. Therefore, since the soft stool pad 600 is a combination of the soft stool pad 300 and the soft stool pad 500, the same configuration and effects as the soft stool pad 300 and soft stool pad 500 will not be explained.

[0060] [Effect] The soft stool excreted by the wearer passes through the opening 11 formed in the top sheet 10 and moves to the lower filter sheet 20'. At this time, before the soft stool arrives, the notch 24 is closed as shown in the upper part of Figure 10. However, due to the weight of the soft stool that has arrived through the opening 11 and the absorption of the liquid components of the soft stool that have passed through the filter sheet 20' into the SAP provided in part 52 of the SAP sheet 50, the SAP swells, causing the notch 24 to open and function as a depression 21 as shown in the lower part of Figure 10, and the soft stool falls into the depression 21. Of the soft stool that has fallen into the depression 21, the solid components 210 are retained in the depression 21 by the filtering action of the filter sheet 20', while the liquid components permeate through the SAP sheet 50 and are absorbed by the absorbent 30.

[0061] As a result, the soft stool pad 600 can keep the soft stool even further away from the wearer's skin, similar to the soft stool pad 100 of Embodiment 2.

[0062] Each of the above-described embodiments 1 to 5 of the absorbent article according to the present invention may be configured by combining two or more forms, and such embodiments combining two or more forms are also embodiments of the absorbent article according to the present invention. [Explanation of symbols]

[0063] 10 Top Sheets 11 Opening 20 filter sheets 21 Indentation 30 absorbent material 100, 300, 400, 500, 600 Soft stool pads (absorbent items) L (Length direction) W (width direction) D thickness direction

Claims

1. In the thickness direction, the top sheet, filter sheet, and absorbent core are layered in order from the side closest to the wearer's skin. The top sheet has a number of openings formed therein. The filter sheet has a recess formed in the portion that overlaps the opening in a plan view, extending from the side facing the top sheet toward the side facing the absorber. The filter sheet and the absorbent are positioned in the thickness direction, and the absorbent sheet is formed by sandwiching a highly absorbent resin between liquid-permeable sheets in the thickness direction, The absorbent sheet is an absorbent article in which the superabsorbent resin is relatively more abundant in the portion that does not overlap the opening in a plan view than in the portion that overlaps the opening.

2. The absorbent article according to claim 1, wherein the absorbent has a recess formed in the portion that overlaps the recess in the plan view, recessed in the thickness direction from the side of the surface facing the filter sheet.

3. The absorbent article according to claim 1 or 2, wherein the recess extends in a certain direction in the plan view and is formed by an incision along the thickness direction in which the absorbent material is laminated on the filter sheet.

4. In the thickness direction, the top sheet, filter sheet, and absorbent core are layered in order from the side closest to the wearer's skin. The top sheet has a number of openings formed therein. The filter sheet has a recess formed in the portion that overlaps the opening in a plan view, extending from the side facing the top sheet toward the side facing the absorber. The absorbent material has a recess formed in the portion that overlaps the recess in the plan view, extending in the thickness direction from the side facing the filter sheet. The recess is formed in an absorbent article by an incision that extends in a certain direction in the plan view and is aligned with the thickness direction in which the absorbent material is laminated on the filter sheet.

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