JP2014171581A - Absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an absorbent article in which overflow is prevented.SOLUTION: In an absorbent article, an absorber 60 comprises: a slit S1 extending in the longer direction at a widthwise center part of said absorber 60 at a portion positioned at the mounted time from a body side part 11 to a crotch part 13; a slit S2 and a slit S3 extending symmetrically on the two sides of the slit S1 and in parallel with the slit S1 and made longer on the side of the crotch part 13 than the slit S1; and a triangular bored drain part 621 positioned at the back of an urination port position 15 in the crotch part 13 at a wearing time. This triangular bored drain part 621 continues at the apex on the side of the triangular body side part 11 to the side of the crotch part 13 of the slit S1, and continues at the apex on the side of the back side part 12 to the slit S2 and the slit S3 on the side of the crotch part 13.

Description

  The present invention relates to an absorbent article.

DESCRIPTION OF RELATED ART Conventionally, absorbent articles, such as an absorbent pad attached and used inside exterior bodies, such as a diaper and a diaper cover, are known.
In the absorbent article, a technique is known in which a slit is provided in order to improve fit to the crotch portion.
For example, Patent Literature 1 proposes an absorbent pad provided with a single through groove (slit) along the longitudinal direction and a pair of grooves across the through hole.
According to this configuration, the absorbent pad is deformed along the through-holes and grooves when worn, so that the fit to the crotch portion is improved, and the body fluid such as urine is diffused through the slit, so the absorption speed and liquid The diffusibility can be improved.

JP 2006-95156 A

  By the way, when wearing an absorbent pad on a person with a narrow crotch width due to thick legs, paralysis, etc., the front side of the absorbent pad is folded in a mountain so that the absorbent pad hits the crotch There is a method of wearing. In general, when an absorbent pad is attached in this way, the absorbent body in the crotch rises, so when urinating, there is no gap between the raised absorbent body and the crotch, and overflow of urine occurs. There was a problem to do.

  The subject of this invention is preventing the overflow leak in an absorbent article.

In order to solve the above problem, the invention according to claim 1 is:
Absorption comprising a liquid-permeable top sheet, a back sheet, and an absorber interposed between the top sheet and the back sheet through the crotch part and the back side part between the top sheet and the back sheet when worn. In the sex goods,
The absorbent body includes a first groove portion extending along a longitudinal direction from the abdominal side portion to a crotch portion of the absorbent body at a central portion in a width direction of the absorbent body, and both sides of the first groove portion. A second groove portion and a third groove portion that extend symmetrically in parallel with the first groove portion and are longer on the crotch portion side than the first groove portion, and are located behind the urination port in the crotch portion when worn. A triangular hollow portion, and
In the hollowed-out portion, the apex on the side of the triangular ventral side is continuous with the crotch side end of the first groove, and the apex on the back side is the second groove and the It is formed to be continuous with the crotch side end of the third groove.

The invention according to claim 2 is the invention according to claim 1,
As for the said hollow part, the side of the said dorsal side part of the said triangular shape is further hollowed by the predetermined | prescribed shape.

The invention according to claim 3 is the invention according to claim 1 or 2,

The absorber further includes a groove portion extending from the back side portion of the hollow portion.

The invention according to claim 4 is the invention according to claim 3,
A plurality of groove portions extending from the back side portion of the hollow portion are provided.

The invention according to claim 5 is the invention according to any one of claims 1 to 4,
The thickness of the absorber is thicker than the other region of the absorber around the hollowed portion of the absorber.

The invention according to claim 6 is the invention according to any one of claims 1 to 4,
The amount of the superabsorbent resin is increased around the hollowed portion of the absorbent body as compared with other regions of the absorbent body.

According to the present invention, when the absorbent article is mountain-folded in the longitudinal direction in the wearing state, body fluid such as urine is temporarily put in the hollowed portion in conjunction with the first groove portion to the third groove portion. Since the dent which can be stored arises, an overflow leak can be prevented.
In addition, the depression generated in the hollowed out part is maintained even when the abdomen side of the absorbent article is folded in a mountain and attached to the wearer, and then the abdomen side of the absorbent article is expanded along the body. Therefore, even when the crotch width is narrow, urine can be received in the depression when urinating, and overflow of urine can be prevented. In addition, since the first groove portion is provided, mountain folds can be easily performed, so that the absorbent article can be easily applied to a person having a narrow crotch width.

It is a perspective view which shows an example of the state at the time of mounting | wearing of an absorbent article. FIG. 2 is a developed plan view of the lower side of the absorbent article in FIG. 1. FIG. 2 is a developed plan view of the upper side of the absorbent article in FIG. 1. It is sectional drawing in the AA of FIG. It is a top view which shows an absorber. It is sectional drawing in the BB line of FIG. It is the (a) perspective view near the hollow part when the absorbent article shown in FIGS. 1-6 is mountain-folded in the longitudinal direction from the abdominal side part to the crotch part, (b) The figure seen from the front. It is a top view which shows the absorber which made the hollow part square as a comparative example. It is the (a) perspective view near the hollow part when the absorbent article using the absorber shown in FIG. 8 is folded in the longitudinal direction from the abdominal side part to the crotch part, (b) is a view seen from the front. . It is a top view which shows an example of the absorber in the absorbent article of the modification 1. It is a top view which shows the other example of the absorber in the absorbent article of the modification 1. It is a top view which shows an example of the absorber in the absorbent article of the modification 2. It is a top view which shows the other example of the absorber in the absorbent article of the modification 2. It is a top view which shows an example of the absorber in the absorbent article of the modification 3.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the scope of the invention is not limited to the illustrated examples.

In the following description, in a state where the absorbent article 1 in the present embodiment is unfolded, the side positioned on the abdomen side of the human body (wearer) when worn is the front side, the side positioned on the back side is the rear side, and the wearer The side in contact with the wearer is the upper side, the side opposite to the side in contact with the wearer is the lower side, and the direction orthogonal to both the front-rear direction and the vertical direction is the left-right direction (width direction).
The front-rear direction is the X direction, the left-right direction is the Y direction, and the up-down direction is the Z direction.

  The absorbent article 1 is, for example, a urine picking pad for night or for a long time, and is used by being detachably attached to an outer body (not shown) attached to a human body such as a diaper, a diaper cover, and pants. The

As shown in FIGS. 1-4, the absorbent article 1 is formed so that a wearer's crotch may be covered from an abdominal side to a back side at the time of wearing.
Specifically, one end (front end) of the absorbent article 1 forms the abdomen side 11 located on the wearer's abdomen when worn, and the other end (rear end) is worn when worn. The back side part 12 located on the back side of the wearer is formed, and the crotch part 13 located between the abdomen side part 11 and the back side part 12 is located between the crotch of the wearer.
The ventral part 11 and the dorsal part 12 are formed so that the length in the left-right direction is longer than the crotch part 13. The back side part 12 is formed so that the length in the front-rear direction is longer than that of the abdomen side part 11, so that the back side of the wearer can be covered widely by the back side part 12.
Further, both edge portions of the crotch portion 13 form two leg surrounding portions 14 and 14 located around the wearer's leg when worn from the abdominal side portion 11 to the back side portion 12. The leg surrounding portions 14 and 14 are respectively provided with elastic members 141 for flat gathers such as rubber thread, and the flat gathers are formed by the elastic members 141 for flat gathers. Thereby, since it fits elastically around a wearer's leg, while being able to suppress side leakage, it is easy to follow a wearer's body movement, and the absorptive article 1 becomes difficult to shift. Moreover, since the absorbent article 1 is naturally curved by the flat gather, a three-dimensional gather (described later) can be brought into close contact with the wearer's crotch.

  The absorbent article 1 includes a liquid-permeable surface sheet 20 provided on the contact surface side (upper side) with the wearer when worn, and a back sheet provided on the side opposite to the contact surface with the wearer (lower side) when worn. 30, a back sheet 40 made of a non-woven fabric provided on the outer side opposite to the contact surface with the wearer when worn, an absorbent body 60 interposed between the top sheet 20 and the back sheet 30, and a top sheet Gather sheets 50, 50 provided along the longitudinal direction of the absorbent article 1 on both side edges (left side edge and right side edge) of the absorbent body 60 on the 20 side, and a ventral side part in the back sheet 40 11 and the fixing member 90 for fixing the absorbent article 1 to the exterior body.

The top sheet 20 forms a surface that comes into contact with the wearer when the absorbent article 1 is worn, is provided on the upper side of the absorbent body 60, receives body fluid containing water-like components such as urine, etc., and reaches the absorbent body 60. It is a liquid-permeable sheet that plays a role in transportation.
Examples of the liquid-permeable sheet include a net-like sheet material obtained by plain weaving of yarn such as nylon and polyethylene terephthalate, a film sheet material formed with a large number of through holes, a film sheet material such as polyethylene and polypropylene, and liquid permeability. A woven fabric and a non-woven fabric are suitable, and a nonwoven fabric is particularly suitable. Nonwoven fabrics include olefins such as polyethylene and polypropylene, polyesters and polyamides, synthetic fibers such as rayon and cupra, natural fibers such as cotton, or composites of these as fiber materials, the spunlace method, What was processed by appropriate processing methods, such as an air through method, a point bond method, an airlaid method, a spun bond method, a thermal bond method, a melt blown method, a needle punch method, can be used.

The back sheet 30 is a liquid-impermeable sheet that is provided on the lower side of the absorbent body 60 and plays a role of preventing exudation and leakage of the absorbent article 1 such as body fluid.
The liquid-impervious sheet is preferably a sheet material having at least water shielding properties such as polyethylene or polypropylene, and is preferably a sheet material having moisture permeability from the viewpoint of preventing stuffiness. As a sheet material having this water barrier property and moisture permeability, for example, a sheet is formed by melting and kneading an inorganic filler in an olefin resin such as polyethylene or polypropylene, and then stretched in a uniaxial or biaxial direction. The microporous sheet material obtained by is preferably used.
In addition, a laminated nonwoven fabric composed of a film layer having liquid impermeability and a nonwoven fabric layer having air permeability may be used. A laminated nonwoven fabric is a nonwoven fabric called a laminated nonwoven fabric obtained by laminating a nonwoven fabric on a polyethylene sheet or the like, for example, and is a nonwoven fabric having both liquid impermeability and air permeability.
The back sheet 30 is not necessarily a liquid-impermeable sheet.

The back sheet 40 forms a surface opposite to the surface in contact with the wearer when the absorbent article 1 is mounted, and covers the surface (lower surface) opposite to the surface on the top sheet 20 side of the back sheet 30. It is the provided nonwoven fabric. Thereby, the back surface sheet 30 can be prevented from being damaged.
Moreover, since cross-like is obtained, it is possible to give the appearance difficulty and to reduce the burden on the wearer's skin.
Examples of the backsheet 40 include a chemical bond nonwoven fabric, a thermal bond nonwoven fabric, a spunlace nonwoven fabric, a spunbond nonwoven fabric, a meltblown nonwoven fabric, a meltblown nonwoven fabric, a heat roll nonwoven fabric, an air-through nonwoven fabric, a liquid-impervious nonwoven fabric, or a combination thereof. However, it is not limited to these.

The gather sheets 50, 50 are respectively provided on both side edges along the X direction of the absorbent body 60 from the abdominal side portion 11 to the back side portion 12 on the surface sheet 20 side (see FIG. 3).
The outer side portions of the gather sheets 50, 50 are fixed to the upper surfaces of the top sheet 20 and the back sheet 30 on the side of the absorber 60. Further, the inner side portions of the gather sheets 50, 50 are not fixed to the top sheet 20 and the back sheet 30, and a three-dimensional gather elastic member 501 such as rubber thread is provided along the front-rear direction. Thus, a pair of three-dimensional gathers are formed that can stand up and deform in a stretchable manner in accordance with the wearer's body shape.

The absorbent body 60 is disposed at a position extending from the abdominal side portion 11 through the crotch portion 13 to the back side portion 12 so that the length in the longitudinal direction is substantially equal to the length in the longitudinal direction of the absorbent article 1. It plays a role of absorbing body fluid such as urine when the absorbent article 1 is used.
Corresponding to the shape of the absorbent article 1, the absorbent body 60 is formed inwardly recessed so that the crotch portion 13 side is narrower than the abdominal side portion 11 side and the back side portion 12 side.

As shown in FIGS. 4 to 6, the absorbent body 60 is a combination of an absorbent material such as cotton or pulp, a sheet-like base material such as fiber or film, and a superabsorbent resin such as a superabsorbent polymer. The absorbent core 62 formed in this manner is configured to be covered with a liquid-permeable covering member 61. Here, in FIG. 5, the outer shape of the covering member 61 that covers the absorber core 62 is represented by a virtual line (two-dot chain line). Examples of the superabsorbent resin include carboxymethyl cellulose, polyacrylic acid and salts thereof, acrylate polymer cross-linked product, starch-acrylic acid graft copolymer, starch-acrylonitrile graft copolymer hydrolyzate, polyoxyethylene cross-linked product Products, crosslinked products of carboxymethyl cellulose, polyethylene oxide, polyacrylamide and other partially crosslinked polymers, or a copolymer of isobutylene and maleic acid are preferably used.
As the covering member 61, for example, crepe paper, a liquid-permeable nonwoven fabric, a perforated sheet, or the like is used. The covering member 61 and the absorber core 62 are bonded. Further, the covering member 61 and the top sheet 20 and the covering member 61 and the back sheet 30 are bonded.

As shown in FIG. 5, the absorber core 62 extends from the upper surface to the lower surface of the absorber core 62 extending along the longitudinal direction of the absorber core 62 from the ventral side portion 11 to the crotch portion 13. Three parallel line-shaped slits S1 (first groove), S2 (second groove), and S3 (third groove) are provided. The slit S <b> 1 is provided in the central portion of the absorber core 62 in the left-right direction (width direction), that is, on the axis of symmetry of the absorber core 62. The slits S2 and S3 are symmetrically provided on both sides of the slit S1 in parallel with the slit S1 as an axis. The lengths of the slit S2 and the slit S3 are substantially the same, and the crotch portion 13 side is longer than the slit S1.
Further, at the position corresponding to the boundary between the crotch portion 13 and the dorsal portion 12 behind the urination port position 15 (near the circled circle in FIG. 3) of the absorbent core 62, a triangular shape is provided. A punching part 621 is provided. The apex P1 on the side of the crotch part 13 of the slit S1 is continuous with the apex P1 on the crotch part 13 side of the slit S1, and the apexes P2 and P3 on the back side part 12 side are respectively slit S2, It is continuous with the end portion on the crotch portion 13 side of S3.

The fixing member 90 is an adhesive tape that plays a role of adhering and fixing the absorbent article 1 to the exterior body. When the release paper is peeled off, the adhesive portion is exposed.
The fixing member 90 has, for example, a substantially rectangular shape (see FIG. 2), and a ventral portion on a surface opposite to the surface that contacts the wearer when the absorbent article 1 is worn (the lower surface of the backsheet 40). 11 is provided at the center.
The arrangement position of the fixing member 90 is preferably on the front side of the ventral side portion 11 from the viewpoint of suppressing the turning of the absorbent article 1 and making it difficult to shift. Furthermore, it is preferable to provide the fixing member 90 at a position corresponding to the punched-out portion 621. This is because by fixing the punched-out portion 621 to the outer, the depression (detailed later) of the punched-out portion 621 is more easily maintained. The size of the fixing member 90 is not particularly limited as long as the size can fix the absorbent article 1 firmly to the exterior body.
The fixing member 90 is not limited to the adhesive tape, and may be any member as long as it can fix the absorbent article 1 to the exterior body. For example, the fixing member 90 may be a hook-and-loop fastener, but is as soft as possible. Is more suitable for following the movement of the wearer's body, and is more preferable.

Next, the operation of the absorbent article 1 will be described.
FIG. 7A is a perspective view of the vicinity of the hollowed-out portion 621 of the absorbent article 1 when the stomach side portion 11 of the absorbent article 1 is mountain-folded in the longitudinal direction. FIG.7 (b) is the figure which looked at the hollow part 621 vicinity of the absorbent article 1 when the stomach part 11 of the absorbent article 1 was mountain-folded in the longitudinal direction from the front. Each figure has shown the contact surface side (upper side) with the wearer of the absorbent article 1. FIG. In FIGS. 7A and 7B, a portion corresponding to a space SP described later is shown as a dot pattern.

  As described above, the absorbent core 62 of the absorbent body 60 of the absorbent article 1 is provided with the slits S <b> 1 to S <b> 3 extending in the longitudinal direction at the position from the abdomen portion 11 to the crotch portion 13, and the urination port position A triangular cut-out portion 621 having apexes P1 to P3 continuous with the slits S1 to S3 is provided at a position in the vicinity of the boundary between the crotch portion 13 and the back side portion 12 behind 15. Therefore, as shown in FIGS. 7A and 7B, when the absorbent article 1 is mountain-folded in the longitudinal direction in the mounting state, the slit S1 at the center in the left-right direction becomes a mountain and the slits S2 on both sides thereof. And S3 becomes a trough, and the part of the hollow part 621 is depressed in conjunction with this. At this time, since the rear ends of the absorbers 62a and 62b existing on the front side of the punched-out portion 621 do not come into close contact with the absorber 62c on the rear side of the punched-out portion 621, as shown in FIGS. 7 (a) and 7 (b). In addition, a space SP is generated on the contact surface with the wearer. Since the urinated urine can be temporarily stored in the hollow of the punched-out portion 621 through the space SP, it is possible to secure time for the absorber 60 to absorb (diffuse) the urine. Overflow leakage can be prevented. The hollow of the hollowed-out portion 621 is formed when the abdomen side portion 11 of the absorbent article 1 is folded in a mountain and attached to the wearer, and then the abdomen side portion 11 of the absorbent article 1 is expanded along the body. Therefore, even when the crotch width is narrow, urine can be received in the depression when urinating, and overflow of urine can be prevented. Further, since the slits S1 are provided, mountain folds are facilitated, so that the absorbent article 1 can be easily applied to a person with a narrow crotch width.

  Here, as a comparative example, a case will be described in which the hollowed-out portion of the absorber has a rectangular shape. FIG. 8 is a view showing an absorbent body 60 </ b> A having a quadrangular hollow portion 622. FIG. 9A is a perspective view of the vicinity of the hollowed portion 622 of the absorbent article 1A when the abdomen side part 11 of the absorbent article 1A using the absorbent body 60A instead of the absorbent body 60 is folded in the longitudinal direction. FIG. FIG. 9B is a front view of the vicinity of the hollowed portion 622 of the absorbent article 1A when the abdomen side part 11 of the absorbent article 1A using the absorbent body 60A instead of the absorbent body 60 is folded in the longitudinal direction. It is the figure seen from. Each figure has shown the contact surface side (upper side) with the wearer of the absorbent article 1. FIG.

As shown in FIG. 8, when the hollowed-out portion 622 has a square shape, when the absorbent article 1 is folded in the longitudinal direction in the manner of wearing, the slit S1 in the central portion becomes a mountain and the slits S2 on both sides thereof. And S3 becomes a valley, and in conjunction with this, the hollowed-out portion 622 is depressed, but as shown in FIGS. 9A and 9B, the absorbers 62d and 62e existing on the front side of the hollowed-out portion 622 The rear end portion of the rear end and the absorber 62f existing on the rear side of the punched-out portion 622 are in close contact with each other, so that the space SP cannot be formed, and urine cannot be temporarily stored in the recess of the punched-out portion 622.
Further, when the hollowed-out portion is rounded and the slit is only the slit S1, similarly, when the absorbent article 1 is mountain-folded in the longitudinal direction in the manner of wearing, sufficient space SP is obtained. I couldn't.
That is, in order to form the space SP for collecting urine in the depression, the absorber 60 requires the slits S1 to S3 and the triangular hollow part 621 in which the vertices P1 to P3 are continuous.

  Below, the modification of the absorber 60 in the absorbent article 1 of the said embodiment is demonstrated. In addition, the same code | symbol is attached | subjected and demonstrated about the structure same as each part in the absorber 60 in each modification.

<Modification 1>
FIG. 10 is a view showing an absorbent body 60B of the first modification.
As shown in FIG. 10, the absorber core 62B of the absorber 60B is provided with a slit S4 extending in the longitudinal direction of the absorber core 62B on the rear side (back side portion 12 side) of the punched portion 621. ing.
Thereby, the urine collected in the punched-out portion 621 can be diffused along the slit S4, and the urine diffusibility can be improved.
In FIG. 10, the number of slits S4 is one, but a plurality of slits S4 may be provided.
Further, as in the absorber core 62C of the absorber 60C shown in FIG. 11, not only the longitudinal slit S4 but also the diagonal slits S5 and S6 are provided on the rear extension of the punched portion 621. Also good. Thereby, the urine collected in the punched-out portion 621 can be diffused in multiple directions along the slits S4 to S6, and the urine diffusibility can be further improved.

<Modification 2>
FIG. 12 is a view showing an absorber 60D of the second modification.
As shown in FIG. 12, a diamond-shaped hollow portion in which a hollow portion 621 b is added to the rear side (back side portion 12 side) of the triangular hollow portion 621 in the absorber core 62 </ b> D of the absorber 60 </ b> D. 623 is provided.
As a result, the area of the punched-out portion is larger than that in the triangular shape, so that the capacity for temporarily storing urine can be increased.
Further, like the absorbent core 62E of the absorbent body 60E shown in FIG. 13, by providing a hollow part 624 with an elliptical hollow part 621c added to the rear side of the triangular hollow part 621, the punching The area of the punched portion may be increased.
In addition, the shape of the hollow part added to the back side part 12 side of the hollow part 621 is not limited to what is shown in FIG. 12, FIG. Moreover, the modification 1 and the modification 2 can also be combined. For example, the slits of Modification 1 for diffusing urine may be extended to the back side 12 of the punched-out portions 623 and 624 shown in Modification 2.

<Modification 3>
FIG. 14 is a diagram illustrating an absorber 60F according to Modification 3.
As shown in FIG. 14, in the absorber core 62 </ b> F of the absorber 60 </ b> F, the thickness of the region 62 g around the punched-out portion 621 (on both sides and the back side portion 12 side) is thicker than the other regions. . The amount of the absorber core in the thickness portion of the region 62g corresponds to at least the amount of the absorber core that has been hollowed out by the hollow portion 621. The thickness of the region 62g may be formed integrally with the other region of the absorber core 62F (different in thickness), or the absorber core is further overlapped with this region 62g (standing volume fiber). It is good also as being.
As a result, urine temporarily stored in the punched-out portion 621 can be immediately diffused and absorbed in the surrounding region 62g, so that a sufficient amount of absorption can be maintained even if the punched-out portion 621 is present. Become.
Moreover, it is good also as increasing the quantity of superabsorbent resin (polymer) of the area | region 62g rather than the other area | region of the absorber core 62F. Even if configured in this manner, the urine temporarily stored in the punched-out portion 621 can be immediately diffused and absorbed in the surroundings in the same manner as when the absorber is stacked on the region 62g. Even if there is, a sufficient amount of absorption can be maintained.
Moreover, also in the absorber cores 60B to 60E of the modified examples 1 and 2, the thickness of the area around the hollow portion (excluding the slit portion) may be increased, and the amount of the superabsorbent resin in the area may be increased. It may be increased. Thereby, sufficient absorption amount can be maintained.

As described above, in the absorbent article 1, the absorbent body 60 extends along the longitudinal direction from the abdominal side portion 11 to the central portion in the width direction of the absorbent body 60 at the portion located in the crotch portion 13 when worn. Slit S1, slits S2 and S3 that extend symmetrically on both sides of slit S1 in parallel with slit S1 and are longer on crotch portion 13 than slit S1, and are located behind urination port position 15 on crotch portion 13 when worn And a triangular hollow portion 621. The hollow portion 621 has a triangular apex on the side of the ventral side 11 that is continuous with the crotch 13 side of the slit S1, and a vertex on the back side 12 on the crotch 13 side of the slits S2 and S3. It is formed to be continuous.
Therefore, when the absorbent article 1 is mountain-folded in the longitudinal direction in the wearing state, a depression that can temporarily store urine in the cut-out portion 621 is generated in conjunction with the slits S1 to S3. Overflow leakage can be prevented.
Moreover, the hollow of this hollow part 621 is when the abdomen side part 11 of the absorbent article 1 is mountain-folded and attached to the wearer, and then the abdomen side part 11 of the absorbent article is expanded along the body. Therefore, even when the crotch width is narrow, urine can be received in the depression when urinating, and overflow of urine can be prevented. Further, since the slits S1 are provided, mountain folds are facilitated, so that the absorbent article 1 can be easily applied to a person with a narrow crotch width.

  Further, by providing the absorber 60 with a slit extending from the side of the dorsal side 621 of the punched-out portion 621, urine accumulated in the punched-out portion 621 can be diffused along the slit, Urine diffusivity can be improved. By providing a plurality of slits, the urine diffusibility can be further improved.

  Further, the back side portion 12 side of the punched-out portion 621 may be further punched into a predetermined shape such as a triangle or an ellipse. Thereby, since the area of a hollow part can be enlarged, the capacity | capacitance for storing urine temporarily can be expanded.

  Moreover, the area | region 62g around the hollow part 621 in the absorber 60 is good also as the thickness of an absorber core being thicker than another area | region. Or it is good also as increasing the quantity of the superabsorbent resin of the area | region 62g rather than the other area | region of the absorber 60. FIG. As a result, urine temporarily stored in the punched-out portion 621 can be immediately diffused and absorbed in the surrounding region 62g, so that a sufficient amount of absorption can be maintained even if the punched-out portion 621 is present. Become.

In addition, this invention is not restricted to the thing of above-described embodiment, In the range which does not deviate from the summary, it can change suitably.
For example, in the above embodiment and Modifications 1 to 3, the urine-absorbing pad is exemplified and described as the absorbent article. However, the absorbent article may be, for example, a paper diaper.

  Moreover, in the said embodiment and the modifications 1-3, it was decided to provide slit S1-S3 (or slit S1-S4 or slit S1-S6) in the absorber core 62 (62A-F), but these Instead of providing the slit, embossing (embossing) may be applied to the absorber core at that portion so that the surface sheet side of that portion becomes concave. Even if it does in this way, there can exist an effect similar to the case of a slit.

  In addition, the detailed configuration of the absorbent article 1 can be changed as appropriate without departing from the spirit of the present invention.

1, 1A Absorbent article 11 Abdominal side portion 12 Back side portion 13 Crotch portion 14, 14 Leg circumference portion 141 Flat gather elastic member 20 Top sheet 30 Back sheet 40 Back sheet 50, 50 Gather sheet 501 Three-dimensional gather elastic member 60 , 60A to 60F Absorber 61 Cover member 62, 62B to 62F, 62a to 62g Absorber core 621 to 624 Perforated portion 90 Fixing member S1 to S6 Slit

Claims (6)

Absorption comprising a liquid-permeable top sheet, a back sheet, and an absorber interposed between the top sheet and the back sheet through the crotch part and the back side part between the top sheet and the back sheet when worn. In the sex goods,
The absorbent body includes a first groove portion extending along a longitudinal direction from the abdominal side portion to a crotch portion of the absorbent body at a central portion in a width direction of the absorbent body, and both sides of the first groove portion. A second groove portion and a third groove portion that extend symmetrically in parallel with the first groove portion and are longer on the crotch portion side than the first groove portion, and are located behind the urination port in the crotch portion when worn. A triangular hollow portion, and
In the hollowed-out portion, the apex on the side of the triangular ventral side is continuous with the crotch side end of the first groove, and the apex on the back side is the second groove and the An absorbent article formed so as to be continuous with a crotch side end of the third groove.   The absorbent article according to claim 1, wherein the hollow portion is further hollowed into a predetermined shape on a side of the triangular back side portion.   The absorbent article according to claim 1 or 2, wherein the absorbent body further includes a groove portion extending from the back side portion of the hollowed portion.   The absorbent article according to claim 3, wherein a plurality of groove portions extending from the back side portion of the hollow portion are provided.   The absorbent article according to any one of claims 1 to 4, wherein a thickness of the absorbent body is thicker than other regions of the absorbent body around the hollowed portion of the absorbent body.   The absorbent article according to any one of claims 1 to 4, wherein the amount of the superabsorbent resin is increased around the hollowed-out portion of the absorbent body as compared with other regions of the absorbent body.

Images