JP2021029686A - Loose stool catching pad - Google Patents

Abstract

To provide a loose stool catching pad which quickly catches and holds loose stool.SOLUTION: A loose stool catching pad 1 in this invention includes a holding layer 2 and a liquid-permeable surface sheet 6 for covering both surfaces of the holding layer 2. The holding layer 2 has a structure in which plural layers of bulky sheets 3 are laminated. The bulky sheet 3 has a first region 5 having a distance between fibers of 150 μm or more and a second region 4 having the distance between fibers longer than the first region 5 in a thickness direction. The bulky sheet 3 that forms one of the surfaces of the holding layer 2 is configured so that the second region 4 faces the one of the surfaces, and the bulky sheet 3 that forms the other surface of the holding layer 2 is configured so that the second region 4 faces the other surface.SELECTED DRAWING: Figure 2

Description

The present invention relates to a loose stool collecting pad.

Regarding the constituent members of absorbent articles such as diapers, studies are being conducted in consideration of the treatment and retention of loose stools. For example, Patent Document 1 discloses an auxiliary sheet having a fiber aggregate composed of long fibers of cellulosic semi-synthetic fibers such as acetate fibers. Further, Patent Document 2 has an absorber containing highly absorbent polymer particles and a permeable sheet, and the absorber has a density of at least a part of a portion located between the absorber and the permeable sheet. An absorbent article coated with a non-woven fabric of 0.01-0.2 g / cm ^{3 is disclosed.}

Japanese Unexamined Patent Publication No. 2016-59740 Japanese Unexamined Patent Publication No. 2006-346210

Absorbent articles such as diapers generally include an absorber as the main liquid absorbing site of excrement. The absorber generally contains an absorbent material such as fluff pulp or an absorbent polymer, but such an absorber may not be able to take in loose stool promptly because it has a lower absorption performance for loose stool than urine. In an absorbent article provided with such an absorbent body, loose stool excreted in the absorbent article is generated when a large amount of defecation occurs a plurality of times or when an external force is applied due to a change in the wearer's posture. There was a risk of leakage. Since the absorbent articles described in Patent Documents 1 and 2 do not effectively take in loose stool, the effect of preventing loose stool from leaking is insufficient.

Therefore, an object of the present invention is to provide a loose stool removing pad that solves the drawbacks of the prior art.

The present invention includes a holding layer and a liquid-permeable surface sheet that covers both sides of the holding layer.
The holding layer has a structure in which bulky sheets are laminated in a plurality of layers, and the bulky sheet is made of an air-through nonwoven fabric containing heat-sealing fibers and having a thickness larger than that of the surface sheet.
The bulky sheet provides a loose stool removing pad having a first region having an interfiber distance of 150 μm or more and a second region having an interfiber distance longer than the first region in the thickness direction thereof. Is.

According to the present invention, it is possible to provide a loose stool removing pad that rapidly takes in and holds loose stool.

FIG. 1 is a perspective view showing an embodiment of a loose stool collecting pad of the present invention. FIG. 2 is a cross-sectional view taken along the line II-II of FIG. FIG. 3 is an enlarged cross-sectional view showing a cross-sectional structure of the bulky sheet shown in FIG. 2 in the thickness direction. 4 (a) to 4 (c) are cross-sectional views showing a laminated structure of bulky sheets forming a holding layer. FIG. 5 is a view corresponding to FIG. 2 showing another embodiment of the loose stool collecting pad according to the present invention. 6 (a) to 6 (c) are cross-sectional views showing a laminated structure of bulky sheets forming a holding layer in the embodiment shown in FIG. FIG. 7 is a view corresponding to FIG. 2 showing still another embodiment of the loose stool collecting pad according to the present invention. FIG. 8 is a cross-sectional view showing a laminated structure of bulky sheets forming a holding layer in the embodiment shown in FIG. 7.

Hereinafter, the present invention will be described based on the preferred embodiment with reference to the drawings. The loose stool collecting pad 1a of the present embodiment has a longitudinal direction X and a width direction Y orthogonal to the longitudinal direction X, and the direction extending from the ventral side of the wearer to the dorsal side via the crotch portion coincides with the longitudinal direction X. In this state, it is used by stacking it on the skin-facing surface (inner surface) of an absorbent article such as a diaper. That is, the loose stool removing pad is used in combination with the absorbent article as an inner of an absorbent article such as a diaper, and is suitably used for taking in and holding loose stool.

In the present specification, the "skin-facing surface" of the absorbent article is the surface of the absorbent article or its constituent members (for example, an absorber) that is directed toward the skin side of the wearer when the absorbent article is worn, that is, relatively. The side closer to the wearer's skin. Further, the "non-skin facing surface" of the absorbent article is a surface of the absorbent article or its constituent members that is directed to the side opposite to the skin side (clothing side) when the absorbent article is worn, that is, a relative wearer. The side far from the skin. The term "when worn" as used herein means a state in which the normal proper wearing position, that is, the correct wearing position of the absorbent article is maintained.

As shown in FIG. 2, the loose stool collecting pad 1a includes a holding layer 2a and a surface sheet 6 that covers both surfaces of the holding layer 2a. The surface sheet 6 of the present embodiment includes a first surface sheet 6a that covers the entire surface of one surface of the holding layer 2a, and a sheet that is separate from the first surface sheet 6a and covers the entire other surface of the holding layer 2a. It is configured to include a second surface sheet 6b for covering the above. The second surface sheet 6b extends outward in the width direction Y from both side edges of the holding layer 2a along the longitudinal direction X, and the extending portion is wound up on one surface side of the holding layer 2a. Instead, the first surface sheet 6a extends outward in the width direction Y from both side edges along the longitudinal direction X of the holding layer 2a, and the extending portion is wound up on the other surface side of the holding layer 2a. It may have been. Further, the surface sheet 6 may be composed of one sheet. The first surface sheet 6a and the second surface sheet 6b in the present embodiment are joined by a known joining means such as an adhesive at a portion where they overlap each other. The holding layer 2a and the surface sheet 6 may or may not be joined by a known joining means such as an adhesive.

As the surface sheet 6, a liquid-permeable sheet conventionally used in the art can be used without particular limitation. Examples of the surface sheet 6 include paper such as tissue paper, fiber sheets such as hydrophilic non-woven fabrics (spunbonded non-woven fabrics, spunlaced non-woven fabrics containing hydrophilic fibers such as acrylic and rayon), and perforated films. .. As described above, the surface sheet 6 is preferably liquid-permeable and hydrophilic.

The loose stool removing pad 1a of the present embodiment is used with one of the surface covered with the first surface sheet 6a and the surface covered with the second surface sheet 6b facing the skin. That is, one surface of the loose stool removing pad 1a may be used as the skin facing surface, or the other surface of the loose stool removing pad 1a may be used as the skin facing surface.

In the loose stool collecting pad 1a, the holding layer 2a is a portion for taking in and holding loose stool or the like. As shown in FIG. 2, the holding layer 2a has a structure in which the bulky sheet 3 is laminated in a plurality of layers. The bulky sheet 3 is thicker than the surface sheet 6. That is, the bulky sheet 3 is formed to be bulkier than the surface sheet 6. The term "bulky" as used herein means that the density is lower and the thickness is thicker than that of a sheet member generally used for absorbent articles such as diapers. The "generally used sheet member" referred to here is a member other than a member (for example, an absorbent core) that functions as a main liquid-absorbing part of excrement. The name "bulky sheet" is for indicating its morphological characteristics. The thickness and density of the bulky sheet 3 can be set, for example, within the range described later. The bulky sheet 3 may be exposed to hot air to restore its thickness.

The bulky sheet 3 contains heat-sealed fibers. As the heat-sealing fibers, fibers that are fused to each other by the action of heat, for example, fibers made of a thermoplastic resin as a raw material can be used. As the thermoplastic resin, polyolefins such as polyethylene (PE) and polypropylene (PP); polyesters such as polyethylene terephthalate (PET); polyamides such as nylon 6 and nylon 66; polyacrylic acid, polymethacrylic acid alkyl esters, polyvinyl chloride, etc. Examples thereof include polyvinylidene chloride, and one of these can be used alone or in combination of two or more. Further, as a preferable example of the constituent fibers of the bulky sheet 3, a composite fiber composed of two or more components of a low melting point component and a high melting point component can be mentioned. As the composite fiber composed of two or more components of a low melting point component and a high melting point component, a core-sheath type composite fiber is preferable, and a core having a high melting point PET or PP and a sheath having a low melting point PET, PP or PE is preferable. The core-sheath type composite fiber may be a concentric type or an eccentric type.

From the viewpoint of improving the uptake of loose stool, which will be described later, the bulky sheet 3 preferably contains hydrophilic heat-sealing fibers. The hydrophilic heat-sealing fibers may be, for example, polyacrylonitrile fibers or the like, which are originally hydrophilic thermoplastic fibers, or hydrophobic thermoplastic fibers which have been hydrophilized. One type can be used alone or two or more types can be used in combination. The latter "hydrophilic fiber" includes, for example, a thermoplastic fiber kneaded with a hydrophilic agent, a thermoplastic fiber having a hydrophilic agent attached to the surface, and a thermoplastic fiber subjected to plasma treatment. And so on. As the hydrophilic agent, a general hydrophilic agent used for hygienic products, for example, an ordinary surfactant or the like can be used. “Hydrophilic” means that the contact angle of the fiber with water is less than 90 degrees. The contact angle of the fiber with water can be measured, for example, according to the method described in Japanese Patent Application Laid-Open No. 2015-142721. The bulky sheet 3 may contain other fibers in addition to the heat-sealed fibers. Examples of other fibers include non-heat-fused fibers, for example, natural or semi-natural fibers such as cellulose fibers.

From the viewpoint of more quickly taking in loose stool, which will be described later, the content of hydrophilic fibers in the bulky sheet 3 is preferably 60 parts by mass or more, more preferably 80 parts by mass or more, based on 100 parts by mass of the bulky sheet.

The bulky sheet 3 is made of an air-through non-woven fabric containing heat-sealed fibers. Such a bulky sheet 3 has a plurality of fusion points in which the intersections of the heat-sealing fibers are fused, and the plurality of fusion portions are three-dimensionally dispersed.

As shown in FIG. 3, the bulky sheet 3 has a first region 5 and a second region 4 in the thickness direction Z thereof. The first region 5 has a fiber-to-fiber distance of 150 μm or more, and the second region 4 is a region in which the fiber-to-fiber distance of the constituent fibers is longer than that of the first region 5. Therefore, the second region 4 has a lower density of constituent fibers than the first region 5. As described above, the first region 5 and the second region 4 are classified according to the length of the interfiber distance of the constituent fibers.

As shown in FIG. 2, the holding layer 2a of the present embodiment has a two-layer structure including an upper layer 21 located on one surface side thereof and a lower layer 23 located on the other surface side, and each layer 21 and 23. Consists of a bulky sheet 3.

As described above, the loose stool collecting pad 1a of the present embodiment is used by superimposing it on an absorbent article such as a diaper. That is, the wearer's excrement is excreted in the loose stool collecting pad 1a. When loose stool is excreted in the loose stool collecting pad 1a, the loose stool passes through the liquid-permeable surface sheet 6 and moves to the holding layer 2a side, and is quickly taken into the holding layer 2. The present inventor's consideration regarding such uptake of loose stool will be described below, taking as an example the case where the surface of the holding layer covered with the first surface sheet 6a is used as the skin-facing surface. After passing through the first surface sheet 6a, the loose stool reaches the surface on the upper layer 21 side of the holding layer 2a. A second region 4 is arranged on the skin-facing surface side of the upper layer 21, and both the second region 4 and the first region 5 arranged below the second region 4 have an interfiber distance of 150 μm or more, and thus have fluidity. Loose stools that are both viscous and viscous easily enter between the fibers and are easily taken into the upper layer 21. Moreover, since the bulky sheet 3 constituting the upper layer 21 is made of an air-through non-woven fabric containing heat-sealing fibers and has a fusion point in which the constituent fibers are partially fused, loose stools provide the fusion point. It is transmitted and migrates to the inside of the holding layer 2a more quickly. Moreover, since the holding layer 2a has a laminated structure in which a plurality of bulky sheets 3 having two regions having different interfiber distances are laminated, even if the upper layer 21 is crushed by a load, the entire holding layer is present due to the presence of the lower layer 23. The thickness of is easily maintained. Therefore, the holding layer 2a can easily maintain a space for holding loose stool. According to the loose stool collecting pad 1a of the present embodiment, the loose stool is quickly taken in and held inside the holding layer 2a. Thereby, for example, even when a large amount of defecation occurs a plurality of times, the loose stool is taken in and held in the holding layer 2a, so that the loose stool leakage can be effectively suppressed. Further, on the skin-facing surface of another absorbent article used by stacking the loose stool removing pad 1a of the present embodiment, clogging between fibers due to loose stool is suppressed, and the liquid absorption performance of the absorbent article is deteriorated. Effectively suppressed.

From the viewpoint of further improving the uptake of loose stool, as shown in FIG. 2, the bulky sheet 3 forming one surface (skin facing surface) of the holding layer 2a has a second region 4 on the other side. It is preferable that the second region 4 of the bulky sheet 3 facing the surface and forming the other surface (non-skin facing surface) of the holding layer 2a faces the other surface. In such a loose stool collecting pad 1a, the loose stool is more easily taken into the second region 4 having a longer interfiber distance than the first region 5, so that the absorption rate of the loose stool into the holding layer 2a is further improved. Further, the loose stool taken in from the second region 4 is rapidly transferred to the first region 5 having a shorter interfiber distance than the second region 4, so that even a large amount of loose stool can be taken in satisfactorily. It is considered that this is because there are many fusion points in the first region 5 where the interfiber distance is shorter than that in the second region 4. Both sides of the holding layer 2a of the present embodiment are formed by the second region 4. In the holding layer 2a of the present embodiment, the first region 5 of the upper layer 21 and the first region 5 of the lower layer 23 face each other in the inner direction in the thickness direction Z, and the second region 4 and the lower layer of the upper layer 21 face each other. Each of the second regions 4 of 23 faces the surface sheet 6. Since the holding layer 2a in the present embodiment has a laminated structure in which the same bulky sheets 3 are laminated, the distance between the fibers in the second region 4 in the upper layer 21 and the distance between the fibers in the second region 4 in the lower layer 23 The distance is the same. Further, the interfiber distance of the first region 5 in the upper layer 21 and the interfiber distance of the first region 5 in the lower layer 23 are also the same.

The loose stool collecting pad 1a of the present embodiment has a structure in which the second region 4 is located above and below and the first region 5 is provided between the second regions 4 even when the surface covered with the second surface sheet 6b is used as the skin facing surface. Therefore, the above-mentioned effect is achieved.

From the viewpoint of taking in the loose stool more quickly, the interfiber distance of the constituent fibers in the second region 4 is preferably within the following range.
The interfiber distance of the constituent fibers in the second region 4 is preferably 1.2 times or more, more preferably 1.3 times or more, and preferably 1 with respect to the interfiber distance of the constituent fibers in the first region 5. It is 1.8 times or less, more preferably 1.7 times or less, and preferably 1.2 times or more and 1.8 times or less, more preferably 1.3 times or more and 1.7 times or less.
The interfiber distance of the constituent fibers in the second region 4 is preferably 200 μm or more, more preferably 220 μm or more, further preferably 240 μm or more, and preferably 600 μm or less, more preferably 550 μm or less, still more preferably 500 μm or less. It is preferably 200 μm or more and 600 μm or less, more preferably 220 μm or more and 550 μm or less, and further preferably 240 μm or more and 500 μm or less.

The interfiber distance of the constituent fibers in the first region 5 is shorter than the interfiber distance of the constituent fibers in the second region 4, but from the viewpoint of further improving the retention of the taken in loose stool, the constituent fibers in the first region 5 The interfiber distance is preferably 150 μm or more, more preferably 170 μm or more, provided that it is shorter than the interfiber distance of the constituent fibers in the second region 4. The interfiber distance is measured by the following method.

<Measurement method of interfiber distance>
The interfiber distance of a fiber aggregate such as a non-woven fabric or paper is calculated by the following formula (1) based on the assumption of Wrotnowski. The following formula (1) is generally used when determining the interfiber distance of a fiber aggregate. Under Wrotnowski's assumptions, the fibers are columnar and the fibers are regularly arranged without intersecting.
Since the bulky sheet to be measured has a multi-layer structure including a first region and a second region, it is obtained according to the following procedure.
First, the distance between fibers in the first region and the second region is calculated by the following formula (1). At that time, the thickness t, the basis weight W, the resin density ρ of the fiber, and the fiber diameter D used in the following formula (1) are those for the first region and the second region to be measured, respectively. The thickness t, the basis weight W, and the fiber diameter D are the average values of the measured values at a plurality of measurement points, respectively.
The thickness t (mm) is measured by the following method. First, the sheet to be measured is cut in a longitudinal direction of 50 mm and a width direction of 50 mm to prepare a cut piece of the sheet. However, if a cut piece of this size cannot be prepared as the sheet to be measured, a cut piece as large as possible is prepared. Next, this cut piece is placed on a flat plate, a glass plate on the flat plate is placed on the flat plate, and weights are evenly placed on the glass plate so that the load including the glass plate becomes 49 Pa, and then the cutting is performed. Measure the thickness of the piece. The measurement environment is a temperature of 20 ± 2 ° C. and a relative humidity of 65 ± 5%, and a scope (manufactured by KEYENCE CORPORATION, VHX-1000) is used as the measuring device. To measure the thickness of the cut piece, first, an enlarged photograph of the cut surface of the cut piece is obtained. In this magnified photograph, the ones of known dimensions are simultaneously projected. Next, the scale is adjusted to the enlarged photograph of the cut surface of the cut piece, and the thicknesses of the first region and the second region of the cut piece are measured. The above operation is performed three times, and the average value of the three times is defined as the thickness t of the first region or the second region.

In the cut surface of the cut piece, the first region and the second region are distinguished by the following method. As described above, since the density of the constituent fibers in the second region is lower than that in the first region, two regions having different numbers of constituent fibers (denseness) are observed on the cut surface of the cut piece. Specifically, the region having many constituent fibers is the first region, and the region having few constituent fibers is the second region. These two regions are also visible to the naked eye.

For the basis weight W (g / m ² ), each of the first region and the second region of the sheet to be measured is cut into a predetermined size (for example, 12 cm × 6 cm), and after the mass measurement, the mass measurement value is measured. It is obtained by dividing by the area obtained from the predetermined size (“basis weight W (g / m ² ) = mass ÷ area obtained from the predetermined size”). This measurement is repeated 4 times, and the average value is taken as the basis weight.
The resin density ρ (g / cm ² ) of the fiber is measured using a density gradient tube according to the measurement method of the density gradient tube method described in JIS L1015 Chemical Fiber Staple Test Method (URL is http: ///). kikakuri.com/l/L1015-2010-01.html, JIS Handbook Fiber-2000 for books, p.764-765 of (Japanese Standards Association).
The fiber diameter D (μm) is an average value obtained by measuring 10 fiber cross sections of fibers collected from the first region or the second region using an S-4000 type field emission scanning electron microscope manufactured by Hitachi, Ltd. Is the fiber diameter D (μm). The method for measuring the fiber diameter D follows the <Method for measuring the fiber diameter> described later.

<Measuring method of fiber diameter>
The sheet to be measured is cut with a razor (for example, a single blade manufactured by Feather Safety Razor Co., Ltd.) to obtain a measurement piece having a rectangular shape (8 mm × 4 mm) in a plan view. When cutting the measurement target, care should be taken so that the structure of the cut surface of the measurement piece formed by the cutting is not destroyed by the pressure at the time of cutting. A preferred method for cutting the measurement target includes a method in which the measurement target is placed in liquid nitrogen to be sufficiently frozen prior to cutting the measurement target, and then cut. Using double-sided paper tape (Nichiban Co., Ltd. Nystack NW-15), attach the measurement piece to the sample table. The measurement piece is then platinum coated. An ion sputtering device E-1030 (trade name) manufactured by Hitachinaka Seiki Co., Ltd. is used for coating, and the sputtering time is 30 seconds. The cut surface of the measurement piece is observed at a magnification of 1000 times using an S-4000 type field emission scanning electron microscope manufactured by Hitachi, Ltd. Since the bulky sheet has a first region and a second region, the boundary between the first region and the second region is discriminated from the difference in the density of the fibers from the electron microscope image, and each layer (first region or second region). For each of the fibers existing in the above, the length in the width direction with respect to the longitudinal direction of the fiber is measured, and the average value thereof is taken as the fiber diameter.

The holding layer 2a of the present embodiment has a structure in which two bulky sheets 3 are laminated, but as shown in FIG. 4A, the holding layer 2a has a two-layer structure in which one bulky sheet 3 is folded. You may have. That is, the holding layer 2a may have a laminated structure in which a plurality of bulky sheets 3 are laminated, or may have a laminated structure in which one bulky sheet 3 is folded. Further, as shown in FIGS. 4 (b) and 4 (c), the holding layer 2a may have an intermediate layer 22 located between these two layers 21 and 23 in addition to the upper layer 21 and the lower layer 23. The intermediate layer 22 is a single layer or a plurality of layers located between the upper layer 21 and the lower layer 23. As shown in FIG. 4B, in the holding layer 2a having a laminated structure of three or more layers of the upper layer 21, the intermediate layer 22, and the lower layer 23, one bulky sheet 3 is folded in three or more. It may be formed by laminating three or more bulky sheets 3 as shown in FIG. 4 (c). Both sides of each holding layer 2a shown in FIG. 4 are formed by the second region 4.

From the viewpoint of more compatible with the uptake and retention of loose stool, the number of laminated bulky sheets 3 in the holding layer 2a is preferably 1 or more and 6 or less, and more preferably 2 or more and 5 or less.

From the same viewpoint as above, the thickness T1 (see FIG. 2) of the holding layer 2a is preferably 5 mm or more, more preferably 10 mm or more, preferably 30 mm or less, more preferably 25 mm or less, and preferably 25 mm or less. It is 5 mm or more and 30 mm or less, more preferably 10 mm or more and 25 mm or less.

From the same viewpoint as above, the thickness T3 (see FIG. 2) of the bulky sheet 3 is preferably 3 mm or more, more preferably 5 mm or more, preferably 15 mm or less, more preferably 13 mm or less, and preferably 13 mm or less. It is 3 mm or more and 15 mm or less, more preferably 5 mm or more and 13 mm or less.

From the same viewpoint as above, in the loose stool collecting pad 1a, the holding layer 2a preferably does not contain a water-absorbent material such as a water-absorbent polymer or a super absorbent fiber. Examples of the water-absorbent polymer include cross-linked products of various hydrogel materials, for example, polymers or copolymers of acrylic acid or alkali metal acrylate metal salts, cross-linked products of polyacrylic acid and its salts, cross-linked products of polyacrylate graft polymers, and starch. Alternatively, a crosslinked product of carboxymethylated cellulose, a crosslinked product of a hydrolysis product of a starch-acrylate graft copolymer, a crosslinked product of a vinyl alcohol-acrylate copolymer, a crosslinked product of maleic anhydride grafted polyvinyl alcohol, Examples thereof include a crosslinked isobutylene-maleic anhydride copolymer and a saponified product of a vinyl acetate-acrylic acid ester copolymer. Examples of the shape of the water-absorbent polymer include a spherical shape, a lump shape, a bale shape, an amorphous shape, and the like. The highly absorbent fiber is a synthetic fiber made of a synthetic resin having a fiber-forming ability, which can absorb and retain water, and when absorbing a solution containing water such as urine, the water contained in the solution. At the same time, the lysate contained in the solution may also be absorbable. The highly absorbent fiber is preferably one that can absorb and retain 30 times or more of its own weight of water. Examples of superabsorbent fibers include Super Absorbent Fiber (manufactured by Technical Absorbents. Ltd.), Lansir (manufactured by Toyo Spinning Co., Ltd., Lansir is a registered trademark), which is an absorbent fiber such as polyacrylic acid fiber, and sodium polyacrylate. Examples thereof include bell oasis (manufactured by Kanebo Co., Ltd.) in which a polymer as a main component is directly spun into a fiber shape. When the holding layer 2a contains a water-absorbent material, the content of the above-mentioned water-absorbent material is preferably 80 parts by mass or less in 100 parts by mass of the bulky sheet.

Next, another embodiment of the loose stool collecting pad according to the present invention will be described. Regarding another embodiment to be described later, components different from the embodiments shown in FIGS. 1 to 4 will be mainly described, and the same components will be designated by the same reference numerals and description thereof will be omitted. The description of the above-described embodiment is appropriately applied to the components not particularly described.

FIG. 5 is a cross-sectional view showing another embodiment of the loose stool collecting pad. In the holding layer 2b of the loose stool collecting pad 1b of the present embodiment, the bulky sheet 3 forming one surface has a bulky sheet 3 in which the first region 5 faces the one surface and forms the other surface. In the sheet 3, the first region 5 faces the other surface. That is, both sides of the holding layer 2b of the present embodiment are formed by the first region 5. In the holding layer 2b of the present embodiment, the second region 4 of the upper layer 21 and the second region 4 of the lower layer 23 face each other in the inner direction in the thickness direction Z, and the first region 5 and the lower layer of the upper layer 21 face each other. Each of the first regions 5 of 23 faces the surface sheet 6. The loose stool collecting pad 1b of the present embodiment has the same configuration as that of the above-described embodiments shown in FIGS. 1 to 4 except for such a configuration.

The effect of the loose stool removing pad 1b of the present embodiment will be described by the present inventor by taking as an example the case where the surface covered with the first surface sheet 6a is used as the skin facing surface. Since the loose stool collecting pad 1b of the present embodiment has the same configuration as that of the above-described embodiments shown in FIGS. 1 to 4, the loose stool is quickly taken in and held inside the holding layer 2b. Further, in the loose stool collecting pad 1b of the present embodiment, the interfiber distance is shorter than that of the second region 4 on the skin-facing surface side of the upper layer 21 of the holding layer 2b and the non-skin-facing surface side of the holding layer 2b, respectively. Since the region 5 is arranged, loose stool taken into the holding layer 2b is unlikely to leak to the outside from the holding layer 2b. Therefore, even when an external force is applied due to a change in the wearer's posture, it is possible to effectively suppress the loose stool leakage that the captured loose stool leaks to the outside of the loose stool collecting pad 1b.
The loose stool removing pad 1b of the present embodiment also has the above-mentioned effect when the surface covered with the second surface sheet 6b is used as the skin-facing surface.

The holding layer 2b of the present embodiment has a structure in which two bulky sheets 3 are laminated, but similarly to the above-described embodiment, the holding layer 2b has a laminated structure in which a plurality of bulky sheets 3 are laminated. Often (see FIG. 5), one bulky sheet 3 may have a folded laminated structure [see FIG. 6 (a)]. Further, the holding layer 2b is the intermediate layer 22 located between the upper layers 21 and the lower layers 23, as shown in FIGS. 6 (b) and 6 (c), as in the above-described embodiment. May have.

The interfiber distance of the constituent fibers in the first region 5 of the present embodiment is 150 μm or more as in the embodiments shown in FIGS. 1 to 4. The interfiber distance of the constituent fibers in the first region 5 is preferably 150 μm or more, more preferably 170 μm or more, provided that it is shorter than the interfiber distance of the constituent fibers in the second region 4.

FIG. 7 is a cross-sectional view showing still another embodiment of the loose stool collecting pad according to the present invention. In the holding layer 2c of the loose stool collecting pad 1c of the present embodiment, in the bulky sheet 3 forming one surface, the second region 4 faces the one surface, and the bulky sheet 3 forms the other surface. In the sheet 3, the first region 5 faces the other surface. That is, in the holding layer 2c of the present embodiment, one surface is formed by the second region 4 and the other surface is formed by the first region 5. Further, in the holding layer 2c of the present embodiment, the first region 5 of the upper layer 21 and the second region 4 of the lower layer 23 face each other in the inner direction of the thickness direction Z, and the second region 4 of the upper layer 21 Each of the first region 5 of the lower layer 23 and the lower layer 23 faces the surface sheet 6. The loose stool collecting pad 1c of the present embodiment has the same configuration as that of the above-described embodiments shown in FIGS. 1 to 4 except for such a configuration.

In the loose stool collecting pad 1c of the present embodiment, the surface side formed by the second region 4, which is one surface of the holding layer 2c, is used as the skin facing surface side. That is, the surface covered with the first surface sheet 6a of the present embodiment is used as a skin-facing surface. The inventor's consideration of the effect of the loose stool removing pad 1c will be described below. Since the loose stool collecting pad 1c of the present embodiment has the same configuration as that of the above-described embodiments shown in FIGS. 1 to 4, the loose stool is quickly taken in and held inside the holding layer 2c. Moreover, since the skin-facing surface of the holding layer 2c in the present embodiment is formed by the second region 4, loose stool is taken into the holding layer 2c more quickly, and the second region 4 to the first region 5 Loose stools move quickly. Moreover, since the first region 5 is arranged on the non-skin facing surface side of the lower layer 23 of the holding layer 2c, the loose stool taken into the holding layer 2c leaks to the non-skin facing surface side of the loose stool collecting pad 1c. It is suppressed from coming out.

The holding layer 2c of the present embodiment has a structure in which two bulky sheets 3 are laminated. The holding layer 2c may have a laminated structure in which a plurality of bulky sheets 3 are laminated, as in the above-described embodiment [see FIGS. 7 and 8]. Further, the holding layer 2c may have an intermediate layer 22 located between these two layers 21 and 23 in addition to the upper layer 21 and the lower layer 23, as shown in FIG. 8, as in the above-described embodiment. .. When the intermediate layer 22 is provided, it may have a laminated structure in which a plurality of bulky sheets 3 are laminated and a laminated structure in which one bulky sheet 3 is folded (not shown). However, as described above, in the loose stool collecting pad 1c of the present embodiment, the surface side formed by the second region 4 in the holding layer 2c is the skin facing surface side, and the loose stool collecting pad 1c is formed by the first region 5 in the holding layer 2c. The surface side is used as the non-skin facing surface side. From the viewpoint of facilitating the distinction between the skin-facing surface and the non-skin-facing surface, the loose stool collecting pad 1c has a display indicating that it is the skin-facing surface, or the non-skin-facing surface thereof. Is preferably labeled to indicate that it is a non-skin facing surface. Such a display may be a character, a graphic, a symbol or a combination thereof.

Next, the preferred configuration and the like of each of the above-described embodiments will be described in detail.
In order to further improve the transferability of loose stool, the surface sheet 6 preferably has a plurality of openings from the viewpoint of facilitating the passage of loose stool. In particular, it is more preferable that the surface sheet 6 arranged on the skin-facing surface side has a plurality of openings. It is preferable that the plurality of openings are formed in a scattered pattern in the plan view of the surface sheet 6. From the same viewpoint as above, the size of the opening, that is, the opening width is preferably 1 mm or more, more preferably 3 mm or more, preferably 10 mm or less, more preferably 8 mm or less, and preferably 1 mm or more. It is 10 mm or less, more preferably 3 mm or more and 8 mm or less. For the opening process, for example, a cutting device provided with a cutter roll and an anvil roll, which has a cutting blade having a shape corresponding to the contour of the hole on the outer peripheral surface of the cutter roll, or the like can be used. ..

From the viewpoint of more reliably securing the holding capacity of loose stool, the basis weight of the holding layer 2 is preferably 100 g / m ² or more, more preferably 120 g / m ² or more, and more preferably 500 g / m ² or less. It is preferably 450 g / m ² or less, more preferably 200 g / m ² or less, and preferably 100 g / m ² or more and 500 g / m ² or less, more preferably 120 g / m ² or more and 450 g / m ² or less, still more preferably. It is 120 g / m ² or more and 200 g / m ² or less.
From the same viewpoint as above, the basis weight of the bulky sheet 3 is preferably 50 g / m ² or more, more preferably 60 g / m ² or more, and preferably 100 g / m ² or less, more preferably 90 g / m ^2. It is preferably 50 g / m ² or more and 100 g / m ² or less, and more preferably 60 g / m ² or more and 90 g / m ² or less. From the same viewpoint as above, the density of the bulky sheet 3 is preferably at 0.001 g / cm ³ or more, more preferably 0.001 g / cm ³ or more, and its upper limit is 0.02 g / cm preferably ³ or less, still more preferably 0.01 g / cm ³ or less. The density of the bulky sheet 3 is calculated by dividing the basis weight of the bulky sheet 3 by the thickness of the bulky sheet 3.

From the same viewpoint as above, the volume of the holding layer 2 is preferably 200000 mm ³ or more, more preferably 250000Mm ³ or more, and preferably 60000Mm ³ or less, more preferably 55000Mm ³ or less, and preferably 20000 mm ³ more 60000Mm ³ or less, more preferably 25000 mm ³ or more 55000Mm ³ or less.

From the viewpoint of further improving the transferability of loose stool, each basis weight in the first region 5 and the second region 4 is preferably within the following range.
The basis weight of the first region 5 is preferably 10 g / m ² or more, more preferably 15 g / m ² or more, further preferably 30 g / m ² or more, and preferably 80 g / m ² or less, more preferably 70 g. / M ² or less, more preferably 60 g / m ² or less, preferably 10 g / m ² or more and 80 g / m ² or less, more preferably 15 g / m ² or more and 70 g / m ² or less, still more preferably 30 g / m. ² or more and 60 g / m ² or less.
The basis weight of the second region 4 is preferably 10 g / m ² or more, more preferably 15 g / m ² or more, further preferably 20 g / m ² or more, and preferably 80 g / m ² or less, more preferably 70 g. / M ² or less, more preferably 40 g / m ² or less, preferably 10 g / m ² or more and 80 g / m ² or less, more preferably 15 g / m ² or more and 70 g / m ² or less, still more preferably 20 g / m. ² or more and 40 g / m ² or less.

When the viscosity of loose stool is high, the loose stool tends to be difficult to transfer. From the viewpoint of further improving the transferability of loose stool having high viscosity, the holding layer 2 preferably has a through hole that penetrates in the thickness direction Z or a non-penetration hole that does not penetrate. In this case, the holding layer 2 may have a single or a plurality of through holes or non-through holes. The opening width of the through hole or non-through hole is preferably 1 mm or more, more preferably 3 mm or more, preferably 20 mm or less, more preferably 15 mm or less, and preferably 1 mm or more and 20 mm or less, more preferably 3 mm. It is 15 mm or more and 15 mm or less. The through hole or the non-through hole may be formed by partially cutting the holding layer 2 by a known cutting means. For example, a cutting blade extending in the circumferential direction is provided on the peripheral surface of the roll in the circumferential direction and the axial length direction of the roll. It is possible to use a cutting device provided with a large number of cutter rolls formed in a dispersed manner and an anvil roll that receives the blades of the cutter rolls.

From the viewpoint of further improving the transferability of loose stool from the surface sheet 6 to the holding layer 2, the bulky sheet 3 preferably has a higher hydrophilicity than the surface sheet 6. That is, it is preferable that the first region 5 and the second region 4 have higher hydrophilicity than the surface sheet 6. The hydrophilicity is determined based on the contact angle of the fiber collected from the member or site to be measured with water, for example, according to the method described in Japanese Patent Application Laid-Open No. 2015-142721. Specifically, high hydrophilicity is synonymous with a small contact angle, and low hydrophilicity is synonymous with a large contact angle.
From the same viewpoint as above, it is preferable that the contact angle of the bulky sheet 3 is smaller than the contact angle of the surface sheet 6. In that case, the difference in contact angle between the bulky sheet 3 and the surface sheet 6 is not particularly limited, but is preferably 10 degrees or more, more preferably 20 degrees or more from the viewpoint of further improving the transferability of loose stools.

From the viewpoint of further improving the transferability of loose stool, the contact angle of the bulky sheet 3 is preferably 80 degrees or less, more preferably 70 degrees or less.
From the same viewpoint as above, the contact angle of the surface sheet 6 is preferably 90 degrees or less, more preferably 80 degrees or less, provided that it is larger than the contact angle of the bulky sheet 3.

From the viewpoint of improving the capillary force in the holding layer 2 and further improving the transferability of loose stool, it is preferable that the first region 5 has a smaller fiber diameter of the constituent fibers than the second region 4. The fiber diameter of the constituent fibers is measured by the above-mentioned <method for measuring fiber diameter>.
From the viewpoint of further improving the transferability of loose stool, the fiber diameter of the constituent fibers in the first region 5 is preferably 15 μm or more, more preferably 20 μm or more, and preferably 35 μm or less, more preferably 30 μm or less. Further, it is preferably 15 μm or more and 35 μm or less, and more preferably 20 μm or more and 30 μm or less.
From the same viewpoint as above, the fiber diameter of the constituent fibers in the second region 4 is preferably 35 μm or more, more preferably 40 μm or more, and more preferably 40 μm or more, provided that the fiber diameter of the constituent fibers in the first region 5 is larger than the fiber diameter of the constituent fibers in the first region 5. It is preferably 55 μm or less, more preferably 50 μm or less, and preferably 35 μm or more and 55 μm or less, more preferably 40 μm or more and 50 μm or less.

When the fiber diameters of the constituent fibers in the first region 5 and the second region 4 are the same, the fiber diameters of the constituent fibers in each of the first region 5 and the second region 4 are set from the viewpoint of further improving the transferability of loose stool. It is preferably 15 μm or more, more preferably 20 μm or more, still more preferably 25 μm or more, and preferably 45 μm or less, more preferably 40 μm or less, still more preferably 35 μm or less, and preferably 15 μm or more and 45 μm or less, more preferably. It is 20 μm or more and 40 μm or less, more preferably 25 μm or more and 35 μm or less.

From the viewpoint of further improving the transferability of loose stool, it is preferable that the orientation of the constituent fibers in the first region 5 and the second region 4 are different from each other, and the constituent fibers in the second region 4 are oriented in the thickness direction Z. Is more preferable. The degree of fiber orientation need not be uniform, for example, the orientation of the fibers in the thickness direction Z increases stepwise or continuously from one surface to the other in the second region. You may be. The orientation of the fibers in the thickness direction Z can be achieved by controlling the wind speed, the wind direction, and the like of the hot air blown to the web during the production of the bulky sheet 3. Further, the surface of the non-woven fabric produced by the air-through method is further subjected to mechanical processing (hereinafter, this processing is also referred to as "machining") to cut a part of the fusion point between the heat-sealed fibers. Can also be achieved by. Machining may be performed on only one side of the non-woven fabric or on both sides of the non-woven fabric. Whether or not the fusion point is cut is determined by the presence or absence of cutting of the heat fusion fiber, when the heat fusion fiber in the holding layer is observed with a scanning electron microscope (SEM), a fiber mass larger than the fiber diameter of the heat fusion fiber adheres to one heat fusion fiber. It can be determined whether the fiber is in a state of being wound or a state in which a plurality of heat-sealed fibers are involved and adhered. Specifically, when a part of the fusion point is cut, a fiber mass larger than the fiber diameter of the heat fusion fiber is attached to one heat fusion fiber, or a plurality of fibers are attached to the heat fusion fiber. A state in which the heat-sealed fibers are involved and adhered is observed.

The orientation of the fibers can be evaluated by the orientation angle and the orientation strength of the fibers. The orientation angle indicates the angle at which the fibers are most oriented, and the orientation strength indicates the strength at that orientation angle. Specifically, the fiber orientation angle is a concept indicating in which direction a plurality of fibers having various directions are oriented as a whole, and the shape of the fiber aggregate is quantified. As the orientation angle, the closer the angle between the holding layer (extending direction of the holding layer) and the fibers is to 90 degrees, the more the fibers are oriented in the thickness direction Z of the sheet. Fiber orientation strength is a concept that indicates the amount of fibers that indicate the orientation angle. If the orientation strength is less than 1.05, it is not oriented, and if it is 1.05 or more, it can be said that it is oriented. Further, the larger the value of the orientation strength, the more the fibers are aligned.

From the viewpoint of further improving the transferability of loose stool, it is preferable that the constituent fibers in the second region 4 have a fiber orientation angle close to 90 degrees. Specifically, the orientation angle of the fibers is preferably 40 degrees or more and 140 degrees or less, and more preferably 50 degrees or more and 130 degrees or less. From the same viewpoint as above, the constituent fibers in the second region 4 preferably have a fiber orientation strength of 1.05 or more.
From the same viewpoint as above, it is preferable that the constituent fibers in the first region 5 have a fiber orientation angle close to 60 degrees. Specifically, the orientation angle of the fibers is preferably 10 degrees or more and 110 degrees or less, and more preferably 20 degrees or more and 100 degrees or less. From the same viewpoint as above, the constituent fibers in the first region 5 preferably have a fiber orientation strength of 1.05 or more.

The orientation angle and orientation strength of the fibers can be evaluated as follows.
[Method for measuring fiber orientation angle and orientation strength]
First, a KEYENCE digital microscope VHX-1000 is used to magnify the measurement site to an observable size (10 to 100 times). The sample is allowed to stand so that the thickness direction Z of the bulky sheet 3 and the vertical direction of the scope coincide with each other. Next, an image taken from a direction perpendicular to the measurement surface of the sample is printed. A transparent PET sheet is placed on the printed image, the fibers are traced through the transparent PET sheet, and the orientation state of the fibers in the image is transferred to the transparent PET sheet. This transparent PET sheet is scanned and imported into a personal computer, and the image of the fiber transferred to the transparent PET sheet is binarized using the nexusNewcube (trade name; stand-alone version) image processing software manufactured by Nexus Co., Ltd. .. Subsequently, the binarized image is Fourier transformed using the Fiber Orientation Analysis 8.13 Single software (trade name), which is a fiber orientation analysis program, to obtain a power spectrum, and the spectrum is approximated to an ellipse. From the figure, the orientation angle and orientation strength are obtained. The measurement is performed at three places, and the measured values are averaged to obtain the orientation angle and orientation intensity of the measurement sample, respectively.

The loose stool collecting pad 1 in each of the above-described embodiments can be manufactured by, for example, the following method.
The bulky sheet 3 constituting the holding layer 2 can be formed, for example, by laminating a plurality of webs having the same density of constituent fibers and subjecting them to a brushing process. Examples of the method for performing the brushing process include the method described in Japanese Patent Application Laid-Open No. 2012-0292476, the method described in Japanese Patent Application Laid-Open No. 2013-028891, and the like. Alternatively, it can be formed by laminating two webs having different densities of constituent fibers and forming them into a non-woven fabric by an air-through method. In the non-woven fabric (bulky sheet) formed by the above method, the side where the density of the constituent fibers is high is the first region 5, and the side where the density of the constituent fibers is low is the second region 4. The bulky sheet 3 thus obtained can form the holding layer 2 by laminating a plurality of the sheets or by folding and laminating one sheet. Next, the loose stool removing pad 1 is obtained by applying an adhesive to one surface of the surface sheet 6 and coating the outer surface (surface) of the holding layer 2 with the surface sheet 6 to which the adhesive is applied. ..

Although the present invention has been described above based on the preferred embodiment thereof, the present invention is not limited to the above-described embodiment.
The loose stool removing pad of the above-described embodiment includes the surface sheet 6 and the holding layer 2, but may include members other than these constituent members. For example, a sheet for forming three-dimensional gathers (not shown) extending along the longitudinal direction of the holding layer may be provided on the skin-facing surface side of the loose stool collecting pad.
Further, although the holding layer 2 in the above-described embodiment has a laminated structure in which the same bulky sheets 3 are laminated, it may have a laminated structure in which different types of bulky sheets 3 are laminated. For example, the holding layer may have a laminated structure in which a plurality of types of bulky sheets having different inter-fiber distances between the first regions 5 or the inter-fiber distances between the second regions 4 are laminated.

Hereinafter, the present invention will be described in more detail with reference to Examples. However, the scope of the present invention is not limited to such examples.

[Examples 1 to 3]
The loose stool collecting pad shown in FIG. 2 was manufactured and used as a sample of each example. Specifically, an air-through non-woven fabric having a structure in which two layers having different inter-fiber distances of constituent fibers are laminated was prepared, and this was used as a bulky sheet. Next, two bulky sheets were laminated and used as a holding layer. The outer surface of this holding layer was covered with a surface sheet to obtain a loose stool collecting pad. As the constituent fibers of the bulky sheet, a core-sheath type composite fiber having a core of PP and a sheath of PE, or a core-sheath type composite fiber having a core of PET and a sheath of PE was used. In Examples 1 to 3, bulky sheets having different fiber diameters D, basis weight W and interfiber distances of the constituent fibers were used. The specifications of the bulky sheets of each example and comparative example are shown in Table 1 below. As the surface sheet, PP fibers and PE fibers were used as constituent fibers, and an air-through non-woven fabric having a content ratio (PP: PE) of these fibers of 50:50 was used. The surface sheet had an average fiber diameter of 18 μm, a basis weight of 20 g / m ² , and a fiber-to-fiber distance of 109 μm. The fiber diameter D, basis weight W, and interfiber distance in each of the first region and the second region shown in Table 1 were measured by the above-mentioned method.
In Examples 1 to 3, the second region is located on the skin-facing surface side of the upper layer and the non-skin-facing surface side of the lower layer, respectively.

[Examples 4 to 6]
The loose stool collecting pad shown in FIG. 5 was manufactured and used as a sample of each example. In Examples 4 to 6, loose stool removing pads were produced by the same method as in Examples 1 to 3 described above, except that the first region was arranged on the skin-facing surface side of the upper layer and the non-skin-facing surface side of the lower layer, respectively.

[Examples 7 to 9]
The loose stool collecting pad shown in FIG. 7 was manufactured and used as a sample of each example. In Examples 7 to 9, loose stool removing pads were produced by the same method as in Examples 1 to 3 described above, except that the first region was arranged on the non-skin facing surface side of the lower layer.

[Comparative Example 1]
A core-sheath type composite fiber (fiber diameter 33 μm) having a core of PP and a sheath of PE and a core-sheath type composite fiber (fiber diameter of 20 μm) having a core of PET and a sheath of PE are 50:50. A sheet containing the mixture ratio and having a constant interfiber distance between these composite fibers was prepared. A loose stool removing pad was manufactured by the same method as in Example 1 described above, except that two sheets were stacked and used as a holding layer. Since the interfiber distance in each layer constituting the upper layer and the lower layer of the holding layer is constant, such a loose stool collecting pad does not have a first region and a second region.

With respect to the loose stool removing pads of the above-mentioned Examples and Comparative Examples, the absorption time of loose stool was measured according to the following method, and the performance was evaluated based on the absorption time. The measurement environment was room temperature 23 ° C. and humidity 50% RH. The results are shown in Table 1 below.

[Performance evaluation]
For the loose stool collecting pads of the above-mentioned Examples and Comparative Examples, a sample of 5 cm × 5 cm was cut out from the central portion in the longitudinal direction and the width direction. Subsequently, a bottomless square tube having an inner dimension of 5 cm × 5 cm and a height of 7 cm was prepared, and a wire mesh having a mesh of 1 mm × 1 mm was installed at the bottom thereof. Next, a sample was put through the opening on the side opposite to the wire mesh of the square tube, and the sample was placed on the wire mesh. The sample was placed in a square tube so that the surface sheet was on the opposite side of the wire mesh. In such a square tube, the wire mesh side is the non-skin facing surface side, and the opposite side of the wire mesh is the skin facing surface side. Next, 60 g of pseudo loose stool was injected onto the surface sheet of the sample via a tube. The pseudo-loose stool is a suspension prepared by dissolving or dispersing bentonite in water, and the viscosity of the pseudo-loose stool was adjusted to 40 mPa · s by adjusting the bentonite concentration.
After injecting pseudo-loose stool into the sample, the absorption time until the injected pseudo-loose stool was taken up by the loose stool pad was measured. Specifically, the time from the start of injection of pseudo-loose stool to the disappearance of the liquid level of all pseudo-loose stool from the surface sheet was measured.

Based on the above-mentioned measurement results of absorption time, the uptake property of loose stool was evaluated according to the following criteria. It can be evaluated that the shorter the absorption time, the better the uptake of loose stool. The evaluation results are shown in Table 1.
3 points: Absorption time 5 seconds or less 2 points: Absorption time more than 5 seconds 10 seconds or less 1 point: Absorption time more than 10 seconds

In Examples 1 to 9, the absorption time of the pseudo loose stool was shorter than that of the comparative example, and the evaluation of the uptake property of the loose stool was high. Further, in Examples 1 to 9, it was not confirmed that the pseudo loose stool taken in from the skin facing surface (surface layer) of the sample leaked from the non-skin facing surface side (wire mesh side) of the sample. That is, in Examples 1 to 9, the pseudo loose stool taken into the sample was well retained.

1 Loose stool collecting pad 2 Holding layer 3 Bulky sheet 4 Second area 5 First area 6 Surface sheet 21 Upper layer 23 Lower layer X Longitudinal direction Y Width direction Z Thickness direction

Claims (10)

It is provided with a holding layer and a liquid-permeable surface sheet that covers both sides of the holding layer.
The holding layer has a structure in which bulky sheets are laminated in a plurality of layers, and the bulky sheet is made of an air-through non-woven fabric containing heat-sealing fibers.
The bulky sheet is a loose stool collecting pad having a first region in which the interfiber distance is 150 μm or more and a second region in which the interfiber distance is longer than the first region in the thickness direction thereof. In the bulky sheet forming one surface of the holding layer, the second region faces the one surface.
The loose stool collecting pad according to claim 1, wherein the bulky sheet forming the other surface of the holding layer has a second region facing the other surface. In the bulky sheet forming one surface of the holding layer, the second region faces the one surface.
The loose stool collecting pad according to claim 1, wherein the bulky sheet forming the other surface of the holding layer has a first region facing the other surface. The loose stool removing pad according to any one of claims 1 to 3, wherein the surface sheet has a plurality of openings. The loose stool removing pad according to any one of claims 1 to 4, wherein the holding layer has a basis weight of 100 g / m ^{2 or more.} The loose stool removing pad according to any one of claims 1 to 5, wherein the holding layer has a volume of 200,000 mm ^{3 or more.} The loose stool collecting pad according to any one of claims 1 to 6, wherein the holding layer has a through hole penetrating in the thickness direction. The loose stool removing pad according to any one of claims 1 to 7, wherein the bulky sheet has a higher hydrophilicity than the surface sheet. The loose stool removing pad according to any one of claims 1 to 8, wherein the first region has a smaller fiber diameter of the constituent fibers than the second region. The loose stool collecting pad according to any one of claims 1 to 9, wherein the first region and the second region have different orientations of constituent fibers.

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