JP2019165876A - Absorbent article - Google Patents

Abstract

To provide an absorbent article capable of preventing flowing from an absorber and improving dryness around a waist part.SOLUTION: An opening 15H formed of a plurality of holes is formed on a region A where an extension part 15E of an exterior sheet 15 is overlapped to an absorbent body 14 (top sheet 21 and an absorber 22). Even when flowed fluid exists on a skin-contact surface of the extension part 15 on a liquid impermeable exterior sheet 15, through the opening 15H, the fluid can be absorbed to the top sheet 21 and the absorber 22. In addition, the fluid can be smoothly absorbed to the top sheet 21 and the absorber 22 through the opening 15H on the skin contact surface side having a relatively large opening area. In addition, wet back can be prevented since, the fluid returns to the skin contact surface on the extension part 15E of the exterior sheet 15 through an opening 15H on a non skin contact surface side having a relatively small opening area.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an absorbent article provided with an absorber.

  Absorbent articles, such as disposable diapers (hereinafter simply referred to as “diapers”), which allow discharged body fluid (hereinafter simply referred to as “liquid”) to be absorbed by an absorber are widely known. The absorbent body is obtained by wrapping an absorbent core mainly composed of a fiber material (pulp or the like) and a super absorbent resin (super absorptive polymer, simply referred to as “SAP”) with a covering member such as a tissue or a nonwoven fabric. This absorber is required to improve the amount of liquid absorption.

  Here, in some disposable diapers, the absorbent body is extended to the abdominal side and back side, thereby suppressing an increase in the thickness of the absorbent body and improving the amount of liquid absorbed by the absorbent body. However, since the abdominal and back side absorbent bodies are always in close contact with the wearer's skin, when the absorbent body that is in close contact with the skin holds the liquid, the liquid held in the absorbent body is the skin of the absorbent body. A so-called wet-back that returns to the outside of the abutting surface occurs, causing the wearer to feel discomfort such as skin troubles such as itching and rash.

  Therefore, for example, Patent Document 1 shows an absorbent body that extends to the abdomen and the back side, and covers both ends in the extending direction of the absorbent body with a hydrophobic sheet, thereby forming an absorbent body. What prevents the wet-back of the retained liquid is disclosed.

JP 2017-99854 A

  However, in the absorbent article described in the cited document 1, liquid may flow on the skin contact surface of the hydrophobic sheet that covers both ends of the absorbent body in the extending direction when used for a long time or at night. The liquid that has flowed out is impeded by the absorbent sheet by the hydrophobic sheet, and it always adheres to the wearer's skin or leaks out from the end of the diaper and wets clothes, etc. It was a factor that made me feel uncomfortable.

  Then, the objective of this invention is providing the absorbent article which improves the feeling of lightness around a waist, preventing flowing out from an absorber.

  In order to solve the above problems, an absorbent article according to the present invention includes a liquid-permeable surface sheet, an absorbent body provided on the non-skin contact surface side of the surface sheet, the surface sheet, and the absorbent body. An absorptive article comprising a hydrophobic sheet covering the ventral end and the dorsal end, wherein the hydrophobic sheet is provided with cuts or holes.

  The absorbent article further includes a liquid-impermeable back sheet provided on the non-skin contact surface side of the absorber, and an outer sheet provided on the non-skin contact surface side of the back sheet, The outer sheet is the hydrophobic sheet, and is folded back to the skin contact surface side so as to wrap the ventral end and the dorsal end of the top sheet and the absorbent body to form a waist gather. It is good also as what.

  The absorbent article further includes a side sheet provided between the outer sheet and the top sheet folded back to the skin contact surface side, and the side sheet includes a ventral side of the absorber. It is good also as what is provided with the notch or the hole provided in the part which covers an edge part and a back side edge part so that it may connect with the said notch or the said hole provided in the said hydrophobic sheet | seat.

  The absorbent article may have a cross-sectional shape of the cut or the hole, wherein an opening area on the skin contact surface side is larger than an opening area on the non-skin contact surface side. .

  The absorbent article may be characterized in that the hydrophobic sheet is provided with a plurality of the cuts or the holes as one of a straight line shape, a staggered shape, and a radial pattern. Good.

  ADVANTAGE OF THE INVENTION According to the absorbent article of this invention, the absorbent article which improves the smooth feeling around a waist can be provided, preventing flowing out from an absorber.

It is the perspective view seen from the front side which shows one Embodiment of the disposable diaper which concerns on this invention. It is the typical top view which looked at the state which broke the side seal part of the embodiment shown in Drawing 1, and was developed from the top sheet side. It is a disassembled perspective view of the diaper of the unfolded state shown by FIG. It is sectional drawing cut | disconnected by the IV-IV sectional line in the back body area | region of FIG. It is sectional drawing which shows another embodiment of the skin contact surface structure in the back body area | region shown by FIG. It is a top view which shows the shape and arrangement | sequence pattern of an opening part which are formed in the area | region A where the extension part of an outer sheet | seat overlaps with the absorptive main body (top sheet and absorber) shown by FIG. (B) Circular shapes arranged in a staggered manner in the vertical direction, (c) Circular shapes arranged in a staggered manner in the horizontal direction, (d) Broken line shapes arranged in parallel in the horizontal direction, (e) Staggered arrangement in the horizontal direction It is a figure which shows the example of the broken-line shape made, (f) The broken-line shape paralleled to the vertical direction, and (g) The broken-line shape arrange | positioned zigzag in the vertical direction.

  An embodiment of the present invention will be described in detail with reference to FIGS. However, the present invention is not limited to the aspect of the present embodiment. In addition, in description of this specification and FIG.2, FIG.3, FIG.6, X direction represents the longitudinal direction of the absorber 22, Y direction is a direction orthogonal to the said X direction, and the transversal direction of the absorber 22 is shown. Represents.

<Outline of diapers>
FIG. 1 is a perspective view of an embodiment of a disposable diaper (hereinafter simply referred to as “diaper”) 10 according to the present invention as seen from the front side, and FIG. 2 is a side seal of the embodiment shown in FIG. FIG. 3 is a schematic plan view of a state where the portion is broken and unfolded as viewed from the top sheet side, and FIG. 3 is an exploded perspective view of the diaper in the unfolded state shown in FIG. Here, about the diaper of FIG. 2 and the absorber of FIG. 3, the partially broken state is shown for convenience of explanation. The diaper 10 according to the present embodiment is mainly composed of a waist opening 11 and an exterior body 13 in which a pair of leg openings 12 are formed in the Y direction, and an absorbent body 22 arranged inside the exterior body 13. Is configured.

  As shown in FIG. 1, the diaper 10 includes a front body region 10F, a back body region 10R, and a crotch region 10C that connects the front body region 10F and the back body region 10R. The waist opening 11 is formed so as to surround the waist portion of the wearer with the front body region 10F and the back body region 10R when worn. Similarly, a pair of leg openings 12 in the Y direction are formed so as to surround the crotch portions of both legs of the wearer by the lower end portions of the front body region 10F and the back body region 10R and the crotch region 10C. When worn, the front body region 10F is positioned on the wearer's ventral side, and the back body region 10R is positioned on the wearer's back side. The crotch region 10 </ b> C covers the wearer's crotch when worn, and the wearer's legs are respectively passed through the pair of leg-hole openings 12 in the Y direction. Therefore, the leg periphery opening part 12 will be located in the circumference | surroundings of the thigh from the root of a wearer's both legs.

  The exterior body 13 includes a liquid-impermeable outer sheet 15 (hydrophobic sheet), an inner sheet 16 that can contact the skin of the wearer, a waist elastic member 17, and a pair of leg elastic members in the Y direction. 18. The outer sheet 15 has extending portions 15E that extend to both ends in the X direction in addition to portions having substantially the same size and shape (hourglass shape) as the inner sheet 16. The waist elastic member 17 and the pair of leg elastic members 18 in the Y direction are arranged in an extended state between the outer sheet 15 and the inner sheet 16 formed of a nonwoven fabric. The waist circumference opening 11 corresponding to the waist portion of the wearer is squeezed by the waist circumference elastic member 17, and a waist gather 11g is formed here. Similarly, a pair of leg openings 12 are respectively squeezed in the Y direction corresponding to the thigh portions of the wearer's legs by the pair of leg elastic members 18 in the Y direction, and leg gathers 12g are formed therein. Although the details will be described later, a plurality of openings 15H are formed in the extending portion 15E of the outer sheet 15.

  The absorbent main body 14 in the form of an elongated rectangular sheet extends from the front body region 10F of the diaper 10 to the back body region 10R through the crotch region 10C between the leg opening 12 in the Y direction. The absorbent main body 14 in the present embodiment includes a liquid-impermeable back sheet (back sheet) 20, a liquid-permeable top sheet (surface sheet) 21 having a slightly smaller size and shape than the back sheet 20, and The main part is comprised by the absorber 22 which makes an elongate sheet form, and a pair of hydrophobic side sheet | seat (side sheet | seat) 23 in the Y direction. The back sheet 20 is bonded to the skin contact surface side of the exterior body 13 (that is, the skin contact surface side of the inner sheet 16), and the absorber 22 is disposed between the back sheet 20 and the top sheet 21, The top sheet 21 is joined to the skin contact surface side of the back sheet 20 through the absorbent body 22. Here, an adhesive is applied to the surface where the top sheet 21 and the absorbent body 22 are in contact, and the top sheet 21 and the absorbent body 22 are integrally formed, so that the top sheet 21 and the absorbent body 22 are firmly joined. The top sheet 21 is difficult to peel off.

  The outer peripheral edge of the top sheet 21 covering the entire absorber 22 is joined to the outer peripheral edge of the back sheet 20. Further, both side edges in the Y direction of the side sheet 23 are joined to the side edges of the back sheet 20, and both longitudinal edges of the side sheet 23 are joined to both longitudinal edges of the back sheet 20. Yes. Therefore, the inner portions (the center side in FIG. 2) of the pair of side sheets 23 in the Y direction that covers and overlaps both sides of the top sheet 21 in the Y direction are not joined to the top sheet 21. In order to form the three-dimensional gather 23g by this inner portion, the rubber thread 24 is joined to the inner edge of the side sheet 23 in an extended state. Therefore, in a state where such a diaper 10 is worn, urine and feces are guided onto the top sheet 21 of the absorbent main body 14, and moisture passes through the top sheet 21 and is absorbed by the absorber 22. .

  The absorbent body 22 of this embodiment located under the top sheet 21 is obtained by coating an absorbent core 22a mainly made of pulp and SAP with a covering member (core wrap) 22b such as tissue or nonwoven fabric. The seam formed by wrapping the absorbent core 22a with the covering member 22b is, for example, formed on the upper surface of the absorbent body 22 and extending in the longitudinal direction, as shown in FIG. The absorbent body 22 of the present embodiment has an elongated shape so as to extend from the front body, the crotch, and the back body. Here, the absorbent body 22 of the present embodiment is a rectangular shape having a different length in the X direction and a length in the Y direction (in FIGS. 2 and 3, the length in the X direction is longer than the length in the Y direction). ing). In addition, the shape of the absorber 22 of this embodiment is not restricted to this, For example, the thing of the substantially square whose length of a X direction and a Y direction is comparable, The thing by which the corner | angular part of the X direction is rounded, X Various shapes such as an elliptical shape extending in a direction and a circular shape are included. In addition, a pair of notches in the Y direction having an arc shape, a trapezoidal shape, or a rectangular shape such as a rectangle may be formed in the crotch portion of the absorbent body 22 so as to correspond to the pair of leg-hole openings 12. . In addition, in the diaper 10 which concerns on this embodiment, although the absorber 22 wrapped with the coating | coated member 22b is used, the absorbent article which concerns on this invention absorbs the absorbent core 22a which is not wrapped with the coating | coated member 22b. It may be used as the body 22.

  A pair of leads connected to the waist opening 11 and the leg opening 12 are provided at the edges in the Y direction of the exterior body 13 (the outer sheet 15 and the inner sheet 16) in the front body region 10F and the back body region 10R of the diaper 10. Side seal portions 19 are formed. As shown in FIG. 3, first, the outer sheet 15, the inner sheet 16, and the absorbent main body 14 are sequentially stacked and joined in order from the outside, and both end portions of the inner sheet 16 and the absorbent main body 14 in the X direction are joined. The extended portion 15E of the outer sheet 15 is folded back to the skin contact surface side and joined to both ends of the inner sheet 16 and the absorbent main body 14. Next, the side seal portions 19 formed on the exterior body 13 are overlapped with each other, and these contact portions are joined. Thereby, the diaper 10 as shown in FIG. 1 with which the waist periphery opening part 11 and a pair of leg periphery opening part 12 were formed in the Y direction can be obtained.

  In addition, in the diaper 10 which concerns on this embodiment, although the absorber 22 wrapped with the coating | coated member 22b is used, the absorbent article which concerns on this invention absorbs the absorbent core 22a which is not wrapped with the coating | coated member 22b. It may be used as the body 22.

  Next, the skin contact surface structure that always contacts the wearer's skin in the front body region 10F and the back body region 10R of the present embodiment will be described.

<Skin contact surface structure>
4 is a cross-sectional view taken along the line IV-IV in the rear body region 10R of FIG. Here, since the skin contact surface structure in the front body region 10F has the same structure as the skin contact surface structure in the back body region 10R, description thereof is omitted.

  As shown in FIGS. 2 and 4, the skin contact surface structure formed by the end portion in the X direction of the absorbent main body 14 and the extending portion 15 </ b> E of the outer sheet 15 is formed by the absorbent main body 14 (the top sheet 21 and the absorption sheet). Body 22), the region A (the region indicated by the dot indicated by the arrow A in FIG. 2) (hereinafter referred to as “region A”), and the absorbent main body 14 (the top sheet 21, the side) Sheets 23 and absorbers 22) are provided in regions B (regions indicated by hatched hatching indicated by arrow B in FIG. 2) (hereinafter referred to as “region B”) where the extending portions 15E overlap.

  In the regions A and B where the extending portion 15E overlaps the absorbent main body 14 (at least the top sheet 21 and the absorber 22), the extending portion 15E provided in the liquid-impermeable outer sheet 15 functions as a hydrophobic sheet. Then, it is folded back to the skin contact surface side so as to wrap the absorbent main body 14, and is laminated and bonded. Thereby, it can prevent that the liquid flows out from the edge part of the X direction of the absorptive main body 14, and can prevent that the absorptive main body 14 holding the liquid directly contacts skin. Moreover, by using the extension part 15E provided in the outer sheet 15 as a hydrophobic sheet, the hydrophobic sheet and the outer sheet 15 can be integrated, and the manufacturing process can be simplified.

  Further, in the region A, the extending portion 15E is formed with openings 15H composed of a plurality of circular holes. Here, as shown in FIG. 4, even if liquid that has flowed out on the skin contact surface of the liquid-impermeable extending portion 15 </ b> E exists, the top sheet 21 and the absorber 22 are passed through the opening 15 </ b> H. Liquid can be absorbed. The shape of the opening 15H is such that the opening area on the skin contact surface side is larger than the opening area on the non-skin contact surface side. Thereby, the liquid that has flowed out on the skin contact surface of the extending portion 15E is smoothly absorbed by the top sheet 21 and the absorber 22 through the opening 15H on the skin contact surface side having a relatively large opening area. be able to. Further, the liquid held in the absorber 22 needs to return to the skin contact surface of the extending portion 15E through the opening 15H on the non-skin contact surface side having a relatively small opening area. , Wet back can be prevented. In addition, since the opening 15H can introduce not only liquid but also air, it is possible to ensure air permeability in the skin contact surface structure of the region A.

  FIG. 5 is a cross-sectional view showing another embodiment of the skin contact surface structure in the back body region 10R shown in FIG. Here, since the skin contact surface structure in the front body region 10F has the same structure as the skin contact surface structure in the back body region 10R, description thereof is omitted.

  The skin contact surface structure formed from the end portion in the X direction of the absorbent main body 14 and the extending portion 15E in the back body region 10R is similar to the above embodiment in that the absorbent main body 14 (at least the top sheet 21 and the absorbent body). 22) are provided in regions A and B (see FIGS. 2 and 5) where the extending portion 15E overlaps.

  In the region A, openings 15H made of a plurality of holes are formed, and also in the region B where the extending portion 15E overlaps the absorbent main body 14 (the top sheet 21, the side sheet 23, and the absorber 22). Openings 15H and 23H made of holes are formed. Here, the opening 15H in the region A is the same as that in the above embodiment, and thus the description thereof is omitted.

  In the region B, the outer sheet 15 and the side sheet 23 are formed with a plurality of circular holes 15H and 23H, respectively, and the openings 15H and 23H are in fluid communication with each other. Has been placed. Here, as shown in FIG. 5, even if there is a liquid that has flowed out on the skin contact surface of the liquid-impermeable extending portion 15E, the top sheet 21 and the absorbent body 22 through the openings 15H and 23H. Liquid can be absorbed into the skin. Thereby, compared with the said embodiment (refer FIG. 4), an opening part can be provided in a wide area | region (area | region A and area | region B), and a liquid can be made to absorb a wider area | region of the absorber 22. FIG. Moreover, each shape of opening part 15H and 23H makes the opening area by the side of a skin contact surface larger than the opening area by the side of a non-skin contact surface. Thereby, the liquid that has flowed out on the skin contact surface of the extending portion 15E smoothly passes to the top sheet 21 and the absorber 22 via the openings 15H and 23H on the skin contact surface side having a relatively large opening area. Can be absorbed. Furthermore, the liquid held in the absorber 22 is transferred onto the skin contact surface of the extending portion 15E through the two portions of the opening portion 15H and the opening portion 23H on the non-skin contact surface side having a relatively small opening area. Therefore, wetback can be prevented more effectively. Since the opening 15H and the opening 23H can introduce not only liquid but also air, it is possible to ensure air permeability in the skin contact surface structure in the region B.

  In this embodiment, the extending portion 15E of the outer sheet 15 is used as the hydrophobic sheet. However, the present invention is not limited to this, and for example, a hydrophobic sheet separate from the outer sheet 15 may be used. In the present embodiment, an opening is provided in the region A or the regions A and B in the front body region 10F and the back body region 10R. However, the present invention is not limited thereto, and for example, the front body region 10F and the back body region An opening may be provided in one region A of 10R, and an opening may be provided in the other regions A and B.

  Next, the shape and arrangement pattern of the openings 15H and 15L formed in the extending portion 15E in the front body region 10F and the back body region 10R of the present embodiment are shown, and the absorbent main body 14 is shown by this shape and arrangement pattern. A description will be given of the rapid diffusion and efficient absorption of liquid over the entire X-direction end.

<Shape and arrangement pattern of openings>
6 is a plan view showing the shape and arrangement pattern of the openings 15H and 15L formed in the region A shown in FIG. Here, description of the shapes and arrangement patterns of the openings 15H and 23H formed in the region B is omitted, but the same as the shapes and arrangement patterns of the openings 15H and 15L formed in the region A. By adopting each, the openings of the top sheet 21 and the side sheet 23 can be in fluid communication with each other.

  The shapes of the plurality of openings 15H and 15L are circular shapes forming holes as shown in FIGS. 6A to 6C, or as shown in FIGS. 6D to 6G. It is provided as a linear shape constituting the cut. Here, with respect to the circular opening 15H, when a tensile force is applied to the opening 15H due to the movement of the wearer or the like, concentrated stress acts on the contact point where the direction of the tensile force and the circular opening 15H come into contact. It will be. Therefore, since the direction of the tensile force always changes, concentrated stress acts on the contact point where the opening 15H is fixed, that is, the extension 15E can be prevented from being damaged. On the other hand, with respect to the linear opening 15L, the liquid moving on the skin contact of the extension 15E can be introduced into the opening 15L relatively easily as compared with the circular opening 15H, and the absorber 22 is used. The direction in which the liquid spreads can be determined.

  Looking at the arrangement pattern of the openings 15H having a circular shape, FIG. 6 (a) is a circular shape arranged vertically and horizontally, and FIG. 6 (b) is a circular shape arranged staggered in the vertical direction. 6 (c) has a circular shape arranged in a staggered manner in the horizontal direction. By providing the circular opening 15H in the entire region A, the liquid that has flowed out onto the skin contact surface of the extending portion 15E is introduced into the opening 15H, and via the top sheet 21. It can be quickly diffused throughout the X-direction end of the absorber 22 and absorbed efficiently. Here, if the openings 15H are circularly arranged in the vertical and horizontal directions (FIG. 6A), the openings 15H are aligned in the vertical and horizontal directions. In such a state, since the liquid moves in the direction of gravity (X direction or Y direction), the liquid may not be introduced into the opening 15H. Therefore, when the openings 15H are circularly arranged in a staggered manner in the vertical direction (FIG. 6B), no gap is formed in each opening 15H when viewed from the Y direction, so that the wearer lies down. The moving liquid can be reliably introduced into the opening 15H. In addition, when the openings 15H are circularly arranged in a staggered manner in the horizontal direction (FIG. 6C), no gaps are formed in each opening 15H when viewed from the X direction. The moving liquid can be reliably introduced into the opening 15H. Furthermore, in the circular shape (FIG. 6 (a)) arranged vertically and horizontally and the circular shape (FIG. 6 (b), FIG. 6 (c)) arranged in a staggered manner, the openings 15H are arranged densely, thereby opening the openings. The gap between the portions 15H becomes narrow, and the moving liquid can be more reliably introduced into the opening 15H.

  Looking at the arrangement pattern of the openings 15L having a linear shape, FIG. 6 (d) is a broken line shape arranged in parallel in the horizontal direction, and FIG. 6 (e) is a broken line shape arranged in a staggered manner in the horizontal direction. FIG. 6F shows a broken line shape arranged in parallel in the vertical direction, and FIG. 6G shows a broken line shape arranged in a staggered manner in the vertical direction. By providing the linear opening 15L over the entire region A, the liquid flowing out on the skin contact surface of the extending portion 15E is introduced into the opening 15L and via the top sheet 21. It can be quickly diffused throughout the X-direction end of the absorber 22 and absorbed efficiently. Here, if the openings 15L have a broken line shape (FIG. 6 (d)) arranged side by side in the horizontal direction, the openings 15L are aligned in the vertical and horizontal directions. Since the opening 15L extends in a direction perpendicular to the direction), the moving liquid can be efficiently introduced into the opening 15L. At this time, since the opening 15L has a broken line shape having a gap, the liquid passing through the gap may not be introduced into the opening 15L. Therefore, when the opening 15L is a broken line shape arranged in a staggered manner in the horizontal direction (FIG. 6 (e)), there is no gap in each opening 15L when viewed from the X direction. The moving liquid can be reliably introduced into the opening 15L. Similarly, if the openings 15L are in the shape of broken lines (FIG. 6 (f)) arranged in parallel in the vertical direction, the openings 15L are aligned in the vertical and horizontal directions. Since the opening 15L extends in the direction perpendicular to the (Y direction), the moving liquid can be efficiently introduced into the opening 15L. At this time, since the opening 15L has a broken line shape having a gap, the liquid passing through the gap may not be introduced into the opening 15L. Therefore, when the openings 15L have a broken line shape (FIG. 6G) arranged in a staggered manner in the vertical direction, no gaps are formed in the openings 15L when viewed from the Y direction, so that the wearer lies down. The moving liquid can be reliably introduced into the opening 15L.

  In addition, although the shape of the opening part of this embodiment is a circular shape that forms a hole or a linear shape that forms a cut, it is not limited to this, and for example, a triangular shape that forms a hole A polygon such as a shape, a star shape, or a shape forming a cut may be a curved shape, a wave shape, or a combination of these shapes. Here, since the amount of liquid that can be introduced into the opening and the amount of liquid that is wet-backed from the opening are in a trade-off relationship, the opening area of each opening is optimized depending on the application. Must be set.

  Therefore, 1-5 mm is preferable and, as for the diameter of the opening part which consists of a hole of this embodiment, 2-4 mm is still more preferable. If the diameter of the hole is smaller than 1 mm, it becomes difficult for the liquid to pass through. If the diameter of the hole exceeds 5 mm, a sufficient wetback preventing effect cannot be obtained. Further, the area ratio of the opening to the area of the hydrophobic region overlapping the absorber is preferably 5 to 50%, and more preferably 10 to 30%.

Moreover, 2-10 mm is preferable and, as for the length of the opening part which consists of a notch | incision of this embodiment, 3-8 mm is still more preferable. If the length is less than 2 mm, it becomes difficult for the liquid to pass through. If the length exceeds 10 mm, a sufficient wetback prevention effect cannot be obtained. Furthermore, in the hydrophobic region overlapping the absorber, the number of cuts per 1 cm ² is preferably 1 to 10, more preferably 2 to 6.

  In addition, the arrangement pattern of the openings of the present embodiment is shown as being arranged in the vertical direction or the horizontal direction, but is not limited thereto, for example, parallel in the oblique direction, radial or concentric circular shape, these A combination of arrangement patterns may be used. In addition, it is not necessary to provide the arrangement pattern of the openings accurately only in the region A or the regions A and B. For example, by providing the array pattern over the region of the extending portion 15E that does not overlap with the absorbent main body 14, Efficiency can be improved.

  Furthermore, although the arrangement pattern of the openings 15H of the present embodiment is not formed up to the end in the X direction and the Y direction of the region A, the arrangement pattern of the openings 15H is changed to the X direction and the Y direction. You may form to both ends. Note that if the arrangement pattern of the openings 15H is formed up to the upper end in the X direction, the liquid may flow out from the upper end in the X direction of the absorber 22, and therefore, formed up to the lower end in the X direction and both ends in the Y direction. It is preferable to do.

<Others>
The present invention is not limited to the above-described embodiments and modifications described in various places, and appropriate changes and modifications can be made without departing from the technical idea of the present invention.

  For example, in the said embodiment, although the example in which the recessed part was not formed in the surface of the top sheet 21 and the absorber 22 was shown, it is not restricted to this. For example, the recesses may be formed continuously or intermittently on the surfaces of the top sheet 21 and the absorber 22, and the array pattern of the recesses is, for example, a polygonal array pattern such as a triangle or a hexagon, a straight line, a curved line Various arrangement patterns such as a parallel pattern or a wave-like pattern may be used. The recesses formed on the surfaces of the top sheet 21 and the absorber 22 and the openings 15H and 15L formed in the extending portion 15E are provided so as to overlap with each other, thereby being introduced through the openings 15H and 15L. The liquid can be quickly diffused to the absorber 22 through the concave portion and absorbed efficiently. On the other hand, by providing the recesses formed on the surfaces of the top sheet 21 and the absorber 22 and the openings 15H and 15L formed in the extending part 15E, the liquid introduced through the openings is The top sheet 21 and the absorber 22 can be absorbed quickly.

DESCRIPTION OF SYMBOLS 10 Diaper 10F Front body area 10R Rear body area 10C Inseam area 11 Waist circumference opening 12 Leg circumference opening 13 Exterior body 14 Absorbent body 15 Outer sheet (hydrophobic sheet)
15E Extension 15H Opening (hole)
15L opening (cut)
16 Inner sheet 17 Elastic member around waist 18 Elastic member around leg 19 Side seal part 20 Back sheet (back sheet)
21 Top sheet (surface sheet)
22 Absorber 23 Side sheet 23H Opening (hole)
23g Solid gather 24 Rubber thread

Claims (5)

A liquid-permeable surface sheet;
An absorber provided on the non-skin contact surface side of the surface sheet;
A hydrophobic sheet covering the top sheet and the ventral end and the dorsal end of the absorber;
An absorbent article comprising:
An absorbent article, wherein the hydrophobic sheet is provided with cuts or holes. The absorbent article further comprises a liquid-impermeable back sheet provided on the non-skin contact surface side of the absorber, and an outer sheet provided on the non-skin contact surface side of the back sheet,
The outer sheet is the hydrophobic sheet, and is folded back to the skin contact surface side so as to wrap the ventral end and the dorsal end of the top sheet and the absorbent body to form a waist gather. The absorbent article according to claim 1. The absorbent article further comprises a side sheet provided between the outer sheet and the top sheet folded back to the skin contact surface side,
The side sheet is provided with a cut or a hole at a portion covering the ventral end and the back end of the absorbent body so as to communicate with the cut or the hole provided in the hydrophobic sheet. The absorptive article according to claim 2 characterized by things.   The said cut | incision or the said hole has the opening area by the side of a skin contact surface larger than the opening area by the side of a non-skin contact surface, The Claim 1 characterized by the above-mentioned. Absorbent article.   The said hydrophobic sheet | seat is provided with the said some notch | incision or the said hole as any one pattern of the linear shape, zigzag shape, and radial shape which are located in parallel. Absorbent article according to item.

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