JP5241597B2 - Body fluid absorption pad - Google Patents

Description

  The present invention relates to a bodily fluid absorption pad for suppressing leakage of bodily fluids such as urine during incontinence and menstrual blood during menstruation.

  Conventionally, as an underwear to which a body fluid absorption pad is attached, there is an incontinence pant described in Patent Document 1, for example. The incontinence pants include a urine absorbing pad formed by sewing the periphery of a laminate of a laminate fabric, a water absorbent member, an absorbent fabric, and a net fabric with a water repellent tape. It is structured to be sewn on the pants. Moreover, in such a urine absorption pad, there is one in which an absorption layer is three-dimensionally arranged over a plurality of layers. Thereby, the absorption power of the leaked urine is strengthened.

Registered Utility Model No. 2535469

  However, the conventional body fluid absorption pad has a problem that the body fluid that has penetrated from the outermost layer of the permeation cloth easily spreads in the absorption layer close to the skin side, even though the plurality of layers of the absorbent layer are three-dimensionally arranged. It was. For this reason, there is a problem that the dry feeling of the pad surface is impaired even if the amount of water retained in the body fluid is sufficient.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a bodily fluid absorption pad that can secure a sufficient amount of bodily fluid absorption and can maintain a dry feeling on the surface.

  In order to solve the above problems, the body fluid absorption pad according to the present invention is a body fluid absorption pad that is applied to a portion corresponding to the crotch portion of the wearer in a worn state and prevents the wearer's body fluid from leaking to the outside. A recess serving as a body fluid injection port is formed at a position corresponding to the urethral opening of the wearer, and a penetration cloth for allowing the body fluid to permeate from the skin side to the back side in the recess, and provided on the back side of the penetration cloth. A waterproof backing cloth that forms a bag portion by sewing the peripheral edge portion, and an absorption layer that is provided in a plurality of layers on the back side of the osmotic cloth inside the bag portion and absorbs body fluid that has permeated from the recess to retain water. A water retaining layer, and the absorbent water retaining layer has an upper absorbent water retaining layer in which a peripheral edge is sewn on a permeation cloth and a first slit is formed at a position corresponding to the concave portion, and the first slit is closed. Sewn on the back side of the upper absorbent water retention layer And the recessed portion is formed by sewing the permeation cloth and the bottom absorbent water retaining layer through the first slit, and the sewing width of a part of the sewn portion is the other portion. It is characterized in that it is wider than the sewing width.

  In this body fluid absorption pad, a bag portion is formed by sewing an osmotic cloth and a backing cloth, and a plurality of absorption water retention layers are provided on the back side of the osmotic cloth inside the bag portion. The absorption amount of the body fluid is sufficiently ensured by such a plurality of absorption water retention layers. Moreover, in this bodily fluid absorption pad, the absorption water retention layer is constituted by an upper absorption water retention layer and a bottom absorption water retention layer. And the penetration cloth and the bottom absorption water retention layer are formed by sewing the penetration cloth and the bottom absorption water retention layer through the first slit of the upper absorption water retention layer, and the penetration cloth, the bottom absorption water retention layer and the sewing portion. The sewing width of a part of is wider than the sewing width of the other part. As a result, the body fluid guided to the concave portion is quickly transferred to the bottom water-absorbing water retaining layer far from the skin side through the sewing portion having a wide sewing width, so that a dry feeling on the pad surface is maintained.

  Moreover, it is preferable that a part of the sewn portion is formed by sew stitching. By the heel stitching, it is possible to suitably secure a sewing width of a part of the sewn portion.

  The upper absorbent water retention layer is formed with a pair of second slits extending in the front-rear direction of the upper absorbent water retention layer so as to sandwich the first slit, and the second slit faces the first slit. It is preferable that the bottom absorbing water retention layer is disposed between the pair of second slits. In this case, even when the wearer takes various postures, the shape of the portion from the recessed portion of the osmotic cloth to the bottom absorbent water retaining layer is maintained. Moreover, it can suppress that the bodily fluid collected on the bottom absorption water retention layer diffuses to the upper absorption water retention layer side by maintaining the shape of the bottom absorption water retention layer. Thereby, the dry feeling of the pad surface is more reliably maintained. Furthermore, it has the effect that it is hard to produce a shift | offset | difference even if it does not fix with a double-sided tape, a hook-and-loop fastener, etc.

  Moreover, it is preferable that a tongue-like layer is sewn on the skin side of the upper absorbent water-retaining layer at a position closer to the wearer's buttocks than the first slit. Pressure is easily applied to the buttock side portion of the body fluid absorption pad when the wearer sits down. Therefore, by providing the above-described tongue-like layer, the pressure applied to the portion hitting the buttocks side can be relieved, so that it is possible to effectively suppress the body fluid accumulated in the bottom absorption water retention layer from diffusing to the upper absorption water retention layer side. .

  According to the present invention, the amount of body fluid absorbed can be sufficiently secured, and the dryness of the surface can be maintained.

It is the top view which looked at the bodily fluid absorption pad concerning a 1st embodiment of the present invention from the skin side. It is the top view which looked at the bodily fluid absorption pad shown in FIG. 1 from the back side. It is a disassembled perspective view of the bodily fluid absorption pad shown in FIG.1 and FIG.2. It is the top view which looked at the bodily fluid absorption pad which concerns on 2nd Embodiment of this invention from the skin side. It is the top view which looked at the bodily fluid absorption pad shown in FIG. 4 from the back side. FIG. 6 is an exploded perspective view of the body fluid absorption pad shown in FIGS. 4 and 5.

  Hereinafter, preferred embodiments of a bodily fluid absorption pad according to the present invention will be described in detail with reference to the drawings.

[First Embodiment]
FIG. 1 is a plan view of the body fluid absorption pad according to the first embodiment of the present invention as viewed from the skin side. 2 is a plan view of the bodily fluid absorption pad shown in FIG. 1 as viewed from the back side, and FIG. 3 is an exploded perspective view showing the internal configuration of the bodily fluid absorption pad. As shown in FIGS. 1 to 3, the body fluid absorption pad 1 includes a permeation cloth 2, a backing cloth 3, and an absorption water retaining layer 4. At the peripheral edge of the permeable cloth 2, the peripheral edge of the backing cloth 3 is sewn with water-repellent yarn to form a bag portion P, and the absorbent water retaining layer 4 is accommodated inside the bag portion P.

  The osmotic cloth 2 is formed of a mesh-like cloth in which, for example, polyester is mainly used and fibers having antibacterial and deodorizing properties are mixed on the back surface. The front side of the penetrating cloth 2 is a portion applied to the wearer's crotch portion, and the back side constitutes the inner upper surface of the bag portion P.

  The permeable cloth 2 has a length dimension and a width dimension corresponding to the wearer's crotch. Of the peripheral edge portion of the osmotic cloth 2, the front edge portion 2a applied to the pubic side is curved and formed in a convex shape, and the rear edge portion 2b applied to the buttocks side is convex with a larger diameter than the front edge portion 2a. It is formed in a curved shape. Further, the side edge portions 2c and 2c are each formed to be curved in a concave shape.

  The permeation cloth 2 is formed with a recess 2d serving as a body fluid inlet at a position corresponding to the urethral opening of the wearer. The recessed portion 2d is elongated in the longitudinal direction of the osmotic cloth 2 by about several centimeters, and the osmotic cloth 2 mainly passes urine during incontinence and menstrual menstrual blood from the recessed portion 2d to the back side. Yes.

  The backing cloth 3 is formed of a cloth made of polyester, for example, and has substantially the same shape as the permeation cloth 2. The upper surface side of the backing cloth 3 constitutes the inner lower surface of the bag portion P, and is waterproofed by, for example, laminating a polyurethane film. This laminating process ensures waterproofness and air permeability, and prevents stuffiness when worn.

  On the other hand, the absorption water retaining layer 4 is formed in a plurality of layers by a cloth made of, for example, 38% polyester, 28% acrylic, 19% rayon, and 10% nylon. As shown in FIG. 3, the absorbent water retaining layer 4 is configured by laminating an upper absorbent water retaining layer 11 and a bottom absorbent water retaining layer 21 in order from the penetrating cloth 2 side. More specifically, the upper absorbent water retention layer 11 has a two-layer configuration including a base layer 12 that forms the base of the upper absorbent water retention layer 11 and a three-dimensionally formed layer 13 disposed between the osmotic cloth 2 and the base layer 12. It has become.

  The base layer 12 has a shape similar to that of the permeation cloth 2, and the front edge portion 12a of the base layer 12 is formed in a convex shape with substantially the same shape as the front edge portion 2a of the permeation cloth 2, The rear edge portion 12 b of the base layer 12 is formed in a convex shape with substantially the same shape as the rear edge portion 2 b of the permeable cloth 2. On the other hand, the side edge portions 12c and 12c of the base layer 12 are not concavely curved in the unfolded state, unlike the side edge portions 2c and 2c of the osmotic cloth 2, and the front edge portion 12a and the rear edge portion 12b. It is a substantially straight line.

  In the base layer 12, slits (first slits) 14 are formed corresponding to the positions where the concave portions 2 d of the osmotic cloth 2 are formed. Further, on both sides of the slit 14, a pair of slits (second slits) 15, 15 extending in the front-rear direction of the upper absorbent water-retaining layer 11 along the side edges 12 c, 12 c so as to sandwich the slit 14. Is formed.

  The slits 15 and 15 have a curved shape that is convex toward the slit 14 side, and the curvatures of the inner sides 15a and 15a of the slits 15 and 15 are larger than the curvatures of the outer sides 15b and 15b. Therefore, it has a substantially crescent shape.

  Further, on the skin side surface of the base layer 12, a tongue-like layer 17 is disposed in the fabric portion 16 between the slits 15, 15 at a position closer to the wearer's buttocks than the slit 14. The front edge portion 17 a of the tongue-like layer 17 extends linearly in the width direction of the base layer 12, and the side edge portions 17 b and 17 b are concave so as to follow the inner sides 15 a and 15 a of the slits 15 and 15. It is curved.

  In addition, the rear edge portion 17c of the tongue-like layer 17 is formed in a convex shape with substantially the same shape as the rear edge portion 12b of the base layer 12 so as to connect the rear ends of the slits 15 and 15. Yes. In the tongue-like layer 17, only the front edge portion 17 a is sewn to the fabric portion 16 between the slits 15 and 15 in the base layer 12 with water repellent yarn, and the rear edge portion 17 c becomes free with respect to the fabric portion 16. ing.

  The three-dimensional formation layer 13 has a shape that fits the fabric portion 16 between the slits 15 and 15 in the base layer 12. A slit 18 having substantially the same shape as the slit 14 is also formed in the three-dimensionally formed layer 13 corresponding to the formation position of the recess 2 d of the penetrating cloth 2. The front edge portion 13a of the three-dimensionally formed layer 13 is a line that connects the front ends of the slits 15 and 15, and is formed to be curved in a convex shape with substantially the same shape as the front edge portion 12a of the base layer 12. 13 is a line that connects the rear ends of the slits 15, 15, and is formed in a convex shape with substantially the same shape as the rear edge 12 b of the base layer 12.

  Further, the side edges 13c, 13c of the three-dimensionally formed layer 13 are formed in a concave shape with substantially the same shape as the inner sides 15a, 15a of the slits 15, 15 in the base layer 12, and the slits 15, 15 are formed by water repellent yarn. Are sewn to the inner sides 15a, 15a. Thereby, the tongue-like layer 17 provided on the base layer 12 is covered with the base layer 12 and the three-dimensionally formed layer 13.

  Further, the width dimension of the three-dimensional formation layer 13 is set to be larger than the width dimension of the cloth portion 16 between the slits 15, 15 in the base layer 12. Therefore, by sewing the side edge portion 13 c to the inner side 15 a of the second slit 15, the fabric portion around the slit 18 in the three-dimensionally formed layer 13 is slightly lifted with respect to the base layer 12.

  Note that, for example, single-drop zigzag stitching is used for sewing between the side edge 13c of the three-dimensionally formed layer 13 and the inner side 15a of the second slit 15. Thereby, since the height of the three-dimensionally formed layer 13 can be increased and a wide space can be secured, stickiness of the recess 2d serving as a body fluid inlet and generation of water pools can be suppressed.

  The upper absorbent water retaining layer 11 as described above has the front edge portion 12a, the rear edge portion 12b, and the side edge portions 12c, 12c of the base layer 12, the front edge portion 2a and the rear edge portion of the permeation cloth 2 by water repellent yarn. 2b and the side edge portions 2c and 2c are fixed to the permeation cloth 2 by sewing. At this time, the width dimension of the base layer 12 is larger than the width dimension of the permeable cloth 2 because the side edge portion 12c is not concave. Therefore, by sewing the peripheral edge of the base layer 12 to the peripheral edge of the permeable cloth 2, the cloth portion 16 between the slits 15 and 15 in the base layer 12 is displaced in the vertical direction with respect to the side edge 12c. It will be.

  On the other hand, as described above, the fabric portion around the slit 18 in the three-dimensionally formed layer 13 is slightly raised with respect to the base layer 12. Therefore, the fabric portion around the raised slit 18 is in close contact with the back side surface of the permeable cloth 2 and forms a bulge structure around the recess 2 d in the permeable cloth 2.

  The bottom absorption water retention layer 21 has a two-layer structure including a capacitance forming layer 22 adjacent to the base layer 12 of the upper absorption water retention layer 11 and an injection layer 23 which is the lowest layer of the absorption water retention layer 4. The capacity forming layer 22 has a shape that fits the fabric portion 16 between the slits 15 and 15 in the base layer 12 of the upper absorbent water retention layer 11, and is disposed on the back side of the base layer 12 of the upper absorbent water retention layer 11. The front edge portion 22a of the capacitance forming layer 22 is formed in a convex curve with a line connecting the front ends of the slits 15 and 15, and the rear edge portion 22b of the capacitance forming layer 22 is behind the slits 15 and 15. It is formed in a convex curve with a line connecting the ends.

  The rear edge portion 22b of the capacitance forming layer 22 is sharpened with the left and right sides that are concave toward the rear of the bottom absorbent water retention layer 21 intersecting at the center. Thereby, the fitting feeling of the buttocks in the wearing state of the bodily fluid absorption pad 1 becomes favorable. Further, the side edges 22c, 22c of the capacitance forming layer 22 are formed in a concave shape with substantially the same shape as the inner sides 15a, 15a of the slits 15, 15 in the base layer 12 of the upper absorbent water retention layer 11.

  The capacity forming layer 22 is formed by absorbing the upper portion of the front edge portion 22a and the rear end portion of the side edge portion 22c with a water-repellent thread by sewing to the base layer 12 of the upper absorbent water retaining layer 11 by sewing. The base layer 12 of the water retention layer 11 is fixed to the back side of the fabric portion 16 between the slits 15 and 15. In addition, the central portion of the capacity forming layer 22 penetrates the slit 14 in the base layer 12 of the upper absorbent water retaining layer 11 and the slit 18 in the three-dimensional forming layer 13, so that the penetrating cloth 2 is sewn with water-absorbing yarn, for example, by sewing. Sewn. That is, the capacity forming layer 22 is sewn to the upper absorbent water retention layer 11 only by the sew stitch. Only the slit front and back portions of the base layer 12 and the three-dimensional formation layer 13 are sewn with the permeation cloth 2 and main sewing.

  The injection layer 23 has a strip shape substantially equal to the minimum width of the fabric portion 16 between the slits 15 and 15 in the base layer 12 of the upper absorbent water retention layer 11, and is disposed on the back side of the capacitance forming layer 22. The front edge portion 23a and the rear edge portion 23b of the injection layer 23 are sewn to the capacitance forming layer 22 with water repellent yarn.

  Further, the central portion of the injection layer 23 is sewed on the permeable cloth 2 together with the capacity forming layer 22 by the water absorbing yarn so as to penetrate the slit 14 in the base layer 12 of the upper absorbent water retention layer 11 and the slit 18 in the three-dimensional formation layer 13. It is worn. The sewing portion Sa between the injection layer 23 and the permeation cloth 2 is formed, for example, by hook stitching on the central portion of the sewing portion S so as to have a thickness of several millimeters, and is several times the sewing width of the sewing portion S. The sewing width is about double.

  Further, in the bottom absorption water retaining layer 21, the injection layer 23, the front edge portions 23a and 22a of the capacitance forming layer 22, and the rear edge portions 23b and 22b are sewn to bend the injection layer 23 and the capacitance forming layer 22. It is done in the state. Then, by sewing in the sewing part Sa, the injection layer 23 and the capacity forming layer 22 are sewn at the front and rear and the center, and have a shape having two arches. Due to this arch space, the injection layer 23 and the capacity forming layer 22 and the capacity forming layer and the base layer 12 do not contact each other as a surface, so that the body fluid of the injection layer is difficult to be transmitted to the capacity forming layer 22 and the base layer 12, Is up.

  As described above, in the body fluid absorption pad 1, the bag portion P is formed by sewing the permeation cloth 2 and the backing cloth 3. Layer 4 is provided. The absorption amount of the bodily fluid is sufficiently ensured by such a plurality of absorption water retention layers 4.

  Further, in the body fluid absorption pad 1, the absorption water retention layer 4 is constituted by the upper absorption water retention layer 11 and the bottom absorption water retention layer 21. And the penetration cloth 2 and the bottom part absorption water retention layer 21 are sewn through the slit 14 and the slit 18 of the upper absorption water retention layer 11 to form the recess 2d of the penetration cloth 2, and the penetration cloth 2 and the bottom portion. The sewn width of the sewn portion Sa corresponding to the center of the absorbent water-retaining layer 21 and sewn portion S is wider than the sewn width of the other portions by the heel stitch. As a result, the body fluid guided to the recess 2d is quickly transferred to the bottom absorption water retaining layer 21 far from the skin side through the sewing portion Sa having a wide sewing width, so that a dry feeling on the pad surface is maintained.

  In the present embodiment, the bottom absorbent water retention layer 21 is composed of a capacity forming layer 22 and an injection layer 23, and the concave portion 2 d of the infiltration cloth 2 is formed by sewing the capacity formation layer 22 and the infiltration cloth 2, A wide sewn portion Sa is formed by seam sewing with the cloth 2. As a result, the bodily fluid that has permeated from the recess 2d first flows into the injection layer 23, which is the lowermost layer of the absorption water retaining layer 4, and spreads from the injection layer 23 to the upper layer in order. Maintained over.

  In addition, the base layer 12 of the upper absorbent water retention layer 11 is formed with a pair of slits 15 and 15 extending in the front-rear direction of the upper absorbent water retention layer 11 with the slit 14 interposed therebetween. It has a curved shape that is convex toward the side. And the capacity | capacitance formation layer 22 and the injection | pouring layer 23 of the bottom part absorption water retention layer 21 are arrange | positioned in the position between this pair of slits 15 and 15. FIG.

  With such a configuration, the deformation of the fabric portion 16 between the slits 15 and 15 in the base layer 12 is relieved by the slits 15 and 15. For this reason, even when the wearer takes various postures, the three-dimensionally formed layer 13 of the upper absorbent water retaining layer 11 attached to the fabric portion 16 and the capacity forming layer 22 and the injection layer 23 of the bottom absorbent water retaining layer 21 are deformed. The body fluid transmission path from the recess 2d of the osmotic cloth 2 to the bottom absorbent water retention layer 21 is maintained. Therefore, it can suppress that the bodily fluid collected in the bottom part absorption water retention layer 21 spread | diffuses immediately to the upper absorption water retention layer 11 side, and the dry feeling of the pad surface is maintained more reliably. Furthermore, it has the effect that it is hard to produce a shift | offset | difference even if it does not fix with a double-sided tape, a hook-and-loop fastener, etc.

  A tongue-like layer 17 is sewn on the skin side of the upper absorbent water retaining layer 11 at a position closer to the wearer's buttocks than the slit 14. Pressure is easily applied to the part of the body fluid absorbing pad 1 on the buttocks side when the wearer sits down. Therefore, by providing the tongue-like layer 17, the pressure applied to the buttock side portion can be relieved, so that the body fluid accumulated in the bottom absorption water retention layer 21 is immediately diffused to the upper absorption water retention layer 11 side. Can be more effectively suppressed.

[Second Embodiment]
Subsequently, a second embodiment of the present invention will be described. FIG. 4 is a plan view of the bodily fluid absorption pad according to the second embodiment of the present invention as seen from the skin side. 5 is a plan view of the bodily fluid absorption pad shown in FIG. 4 as viewed from the back side, and FIG. 6 is an exploded perspective view showing the internal configuration of the bodily fluid absorption pad.

  The bodily fluid absorption pad 31 according to the second embodiment has a larger volume of absorbed bodily fluid than the bodily fluid absorption pad 1 according to the first embodiment. The body fluid absorption pad 31 has a length dimension and a width dimension of each component larger than that of the body fluid absorption pad 1, and an intermediate layer 41 between the base layer 12 and the three-dimensional formation layer 13 of the upper absorbent water retention layer 11. Are provided, a further base layer 51 is provided in the lowermost layer of the upper absorbent water retaining layer 11, a shape of the capacity forming layer 52 of the bottom absorbent water retaining layer 21 is different from the capacity forming layer 22, and The slits of the base layer 12 and the base layer 51 are different from the first embodiment in that the slits are shorter and wider than the slits of the three-dimensional formation layer 13 and the intermediate layer 41. In addition, although there is a difference in dimensions, components having the same functions as those in the first embodiment are denoted by the same reference numerals for convenience of explanation.

  The intermediate layer 41 has a shape that fits the fabric portion 16 between the slits 15 and 15 in the base layer 12 of the upper absorbent water retention layer 11, and is disposed on the skin side of the base layer 12. In the intermediate layer 41, slits 42 are formed corresponding to the formation positions of the concave portions 2 d of the osmotic cloth 2. The front edge portion 41a of the intermediate layer 41 is formed in a convex curve with a line connecting the front ends of the slits 15 and 15, and the rear edge portion 41b of the intermediate layer 41 is formed between the rear ends of the slits 15 and 15. It is formed in a convex curve with a line connecting the two. Further, the side edge portions 41c and 41c of the intermediate layer 41 are formed in a concave shape so as to be along the inner sides 15a and 15a of the slits 15 and 15.

  In the body fluid absorption pad 31, the tongue-like layer 17 is disposed on the skin side surface of the intermediate layer 41 at a position closer to the buttocks side of the wearer than the slit 42. The three-dimensionally formed layer 13 of the upper absorbent water-retaining layer 11 is disposed on the skin side surface of the intermediate layer 41 so as to cover the tongue-like layer 17, and the side edges 13 c and 13 c of the three-dimensionally formed layer 13 are intermediate with water repellent yarns. The side edges 41c and 41c of the layer 41 are sewn. For sewing the side edges 13c, 13c of the three-dimensionally formed layer 13 and the side edges 41c, 41c of the intermediate layer 41, the side edges 13c, 13c and the slits 15, 15 of the three-dimensionally formed layer 13 in the first embodiment are used. As in the case of sewing with the inner sides 15a, 15a, for example, single drop zigzag stitching is used.

  The base layer 51 is disposed adjacent to the back side of the base layer 12. The front edge portion 51 a of the base layer 51 is linearly formed inside the front edge portion 12 a of the base layer 12, and the rear edge portion 51 b of the base layer 51 is inside the rear edge portion 12 b of the base layer 12. It is formed in a straight line. The side edge portions 51c and 51c of the base layer 51 are formed in a curved shape in a concave shape with substantially the same shape as the side edge portions 2c and 2c of the osmotic cloth 2 in the unfolded state. As described above, the front edge portion 51a and the rear edge portion 51b of the base layer 51 are linear, because the vertical flow path that relaxes the water resistance during washing (especially by a two-layer washing machine) is used. It is for forming.

  In the base layer 51, slits 54 are formed corresponding to the positions where the concave portions 2 d of the osmotic cloth 2 are formed. A pair of slits 55 and 55 are formed on both sides of the slit 54 so as to extend in the front-rear direction of the upper absorbent water retention layer 11 along the side edge portions 51 c and 51 c so as to sandwich the slit 54. The slits 55 and 55 have a curved shape that is convex toward the slit 54 side, and the curvatures of the inner sides 55a and 55a of the slits 55 and 55 are larger than the curvatures of the outer sides 55b and 55b. Therefore, it has a substantially crescent shape.

  The capacity forming layer 52 of the bottom absorbent water retention layer 21 has the same shape as the first embodiment in the front edge portion 51a and the side edge portions 51c, 51c, but the rear edge portion 41b is bifurcated. The base layer 51 is disposed on the back side. The left and right branch portions 57 and 57 extend to the vicinity of the rear ends of the slits 55 and 55 along the inner sides 55a and 55a of the slits 55 and 55 in the base layer 51, and the tips of the branch portions 57 and 57 are water repellent. It is sewn to the base layer 51 with a thread.

  In the body fluid absorption pad 31, the central portion of the base layer 51 passes through the slit 18 of the three-dimensional formation layer 13 in the upper absorption water retention layer 11, the slit 42 of the intermediate layer 41, and the slit 14 of the base layer 12 in the upper absorption water retention layer 11. In this way, the permeation cloth 2 is sewn by the water absorbing yarn. The sewn portion S between the base layer 51 and the permeable cloth 2 extends over several centimeters in the front-rear direction, whereby the concave portion 2d of the permeable cloth 2 described above is formed.

  Further, the central portion of the injection layer 23 in the bottom absorbent water retention layer 21 includes the slit 18 of the three-dimensional formation layer 13, the slit 42 of the intermediate layer 41, the slit 14 of the base layer 12, and the slit of the base layer 51 in the upper absorbent water retention layer 11. 54, and is sewn to the permeable cloth 2 together with the capacity forming layer 52 by a water absorbing yarn. The sewing portion Sa between the injection layer 23 and the permeation cloth 2 is formed, for example, by hook stitching on the central portion of the sewing portion S so as to have a thickness of several millimeters, and is several times the sewing width of the sewing portion S. The sewing width is about double.

  Also in such a bodily fluid absorption pad 31, the amount of absorption of bodily fluids can be sufficiently ensured by the multiple layers of the absorption water retaining layer 4 as in the first embodiment. In the bodily fluid absorption pad 31, by further providing the intermediate water layer 41 and the base layer 51 in the absorption water retention layer 4, it is possible to further improve the absorption amount of the bodily fluid. In addition, the body fluid guided to the recessed portion 2d of the osmotic cloth 2 flows through the sewing portion Sa having a wide sewing width and quickly flows into the bottom absorbent water retention layer 21 far from the skin side, so that the dry feeling of the pad surface is maintained.

  Furthermore, in the bodily fluid absorption pad 31, the rear edge part 52b in the capacity | capacitance formation layer 52 of the bottom part absorption water retention layer 21 is branched to right and left. Thereby, the fitting feeling of the buttocks in the wearing state of the bodily fluid absorption pad 31 which is large compared with 1st Embodiment is maintained suitably.

  DESCRIPTION OF SYMBOLS 1,31 ... Body fluid absorption pad, 2 ... Penetration cloth, 2d ... Recessed part, 3 ... Backing cloth, 4 ... Absorption water retention layer, 11 ... Upper absorption water retention layer, 14 ... Slit (1st slit), 15 ... Slit ( (Second slit), 17 ... tongue-like layer, 21 ... bottom absorbing water retaining layer, S, Sa ... sewn part, P ... bag part.

Claims (4)

A body fluid absorbing pad applied to a portion corresponding to the wearer's crotch in a worn state, for suppressing the body fluid of the wearer from leaking to the outside,
A recess that is a body fluid injection port is formed at a position corresponding to the urethral opening of the wearer, and a permeation cloth that permeates the body fluid from the skin side to the back side in the recess,
A waterproof backing cloth that is provided on the back side of the penetrating cloth and forms a bag portion by sewing a peripheral edge to the penetrating cloth;
Provided across a plurality of layers on the back side of the osmotic cloth inside the bag portion, comprising an absorbent water retention layer that absorbs and retains body fluid that has permeated from the recess,
The absorption water retention layer is
An upper absorbent water-retaining layer in which a peripheral edge is sewn to the permeation cloth and a first slit is formed at a position corresponding to the recess;
A bottom absorbent water retention layer sewn on the back side of the upper absorbent water retention layer so as to close the first slit,
The concave portion is formed by sewing the penetrating cloth and the bottom absorption water retaining layer through the first slit, and a sewing width of a part of the sewing part is larger than a sewing width of another part. Body fluid absorption pad, which is also wide.   The body fluid absorbing pad according to claim 1, wherein a part of the sewn portion is formed by seam stitching. The upper absorbent water retention layer is formed with a pair of second slits extending in the front-rear direction of the upper absorbent water retention layer so as to sandwich the first slit,
The second slit has a curved shape that is convex toward the first slit,
The bodily fluid absorption pad according to claim 1 or 2, wherein the bottom absorption water retention layer is arranged between the pair of second slits. The tongue-like layer is sewn on the skin side of the upper absorbent water-retaining layer at a position that is closer to the wearer's hip than the first slit. The bodily fluid absorption pad of any one of these.

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