JP2018102836A - Absorbent articles - Google Patents

Abstract

[Problem] To provide an absorbent article that has excellent bodily fluid absorbency and is unlikely to leak bodily fluids due to the adhesion of a skin care agent. [Solution] The absorbent article 1 of the present invention comprises an absorbent main body 10 having an absorber 4 and a top sheet 2. The absorbent main body 10 has a pair of leakage-prevention cuffs 5 with elastic members 11 in a stretched state arranged on both side portions 10s. The leakage-prevention cuffs 5 stand up in the crotch region 1M when worn. The absorbent main body 10 has a skin care agent-disposed region 8T in which a hydrophilic skin care agent is disposed within the region sandwiched between the pair of collapsed leakage-prevention cuffs 5 when the absorbent main body 10 is stretched against the contractile force of the elastic members 11 and the pair of leakage-prevention cuffs 5 are collapsed inward in the lateral direction Y onto the skin-facing surface of the top sheet 2. In the crotch region 1M, the amount of skin care agent disposed is greater in the agent-disposed central portion 8Tc than in each of the agent-disposed side portions 8Ts along the longitudinal direction X of the skin care agent-disposed region 8T. [Selected Figure] FIG. 1

Description

  The present invention relates to an absorbent article such as a disposable diaper.

Conventionally, various disposable diapers to which a skin care agent is applied have been proposed.
For example, Patent Document 1 describes a disposable diaper in which a hydrophobic lotion is disposed on the surface of a top sheet. Patent Documents 2 and 3 describe disposable diapers in which a hydrophilic lotion is arranged on the top sheet surface.

Japanese translation of PCT publication No. 2008-522772 Special table 2010-525862 gazette JP 2010-75733 A

  Since the disposable diaper described in Patent Document 1 has a hydrophobic lotion on the surface of the top sheet, it is difficult to improve body fluid absorbability.

  Moreover, since the disposable diaper of patent document 2 and 3 uses the hydrophilic lotion, there is no problem regarding a bodily fluid absorbability and can absorb a bodily fluid. However, if a hydrophilic lotion adheres to the component of the diaper that is desired to be hydrophobic in order to prevent side leakage of the body fluid during use, the body fluid is caused by the attached portion of the hydrophilic lotion. Will induce leaks. Patent Documents 2 and 3 do not specifically describe the application position of the lotion for preventing the hydrophilic lotion from adhering to the constituent members of the diaper to be made hydrophobic.

  Therefore, this invention is providing the absorbent article which can eliminate the fault which the prior art mentioned above has.

  The present invention comprises an absorbent main body having a liquid-retaining absorbent body and a liquid-permeable surface sheet on the skin-facing surface side of the absorbent body, from the wearer's abdomen side to the back side through the crotch part. An absorbent article comprising an extending longitudinal direction and a transverse direction perpendicular thereto, a crotch region disposed in the crotch region, and a ventral region and a dorsal region extending in front and rear thereof, wherein the absorbent article The main body has a pair of leak-proof cuffs provided with elastic members extending in the vertical direction on both sides along the vertical direction, and the leak-proof cuffs are formed so as to stand up in the worn state in the crotch region. The absorbent main body is stretched against the contraction force of the elastic member, and the pair of leak-proof cuffs are lying on the skin-facing surface of the face sheet inward in the lateral direction, In the region sandwiched by the pair of leak-proof cuffs lying on the top sheet, hydrophilic A skin care agent placement region including a skin care placement region in which the skin care agent is placed, and in the crotch region, the amount of the skin care agent placement is more than the both sides of the agent placement along the longitudinal direction of the skin care agent placement region It is an absorbent article in which there is more in the central part of the agent arrangement between both side parts.

  ADVANTAGE OF THE INVENTION According to this invention, the absorbent article which is excellent in a bodily fluid absorbability and cannot generate | occur | produce the leak of the bodily fluid resulting from adhesion of a skin care agent is provided.

FIG. 1 is a plan view schematically showing a skin facing surface, that is, a surface sheet side of an unfoldable disposable diaper that is an embodiment of the absorbent article of the present invention. The elastic member of each part is stretched and expanded in a planar shape. FIG. 2 is a cross-sectional view schematically showing a cross section taken along line II-II in FIG. 3 is a cross-sectional view schematically showing a cross section taken along line III-III in FIG.

  Hereinafter, an absorptive article of the present invention is explained with reference to drawings based on an example of a deployment type disposable diaper which is the preferred embodiment. 1 to 3 show a deployable disposable diaper 1 of the present embodiment. The diaper 1 includes an absorbent main body 10 having a liquid-retaining absorbent body 4 and a liquid-permeable surface sheet 2 on the skin facing surface side of the absorbent body 4. The diaper 1 including the absorbent main body 10 includes a longitudinal direction X extending from the wearer's abdomen through the crotch portion to the back side and a lateral direction Y orthogonal thereto, and a crotch arranged in the crotch portion. The region 1M is provided with a ventral region 1F and a dorsal region 1R extending in front and rear thereof. The ventral region 1F, the crotch region 1M, and the dorsal region 1R correspond to the respective regions when the diaper 1 is divided into three equal parts in the vertical direction X. The inseam region 1M has an excretion portion facing portion that is disposed to face an excretion portion such as a wearer's penis and anus when the diaper 1 is worn, and the excretion portion facing portion is usually in the longitudinal direction X of the diaper 1. Located at or near the center. In the following description, the thickness direction, which is a vertical direction orthogonal to the surface direction composed of the vertical direction X and the horizontal direction Y, is defined as the Z direction.

  In the diaper 1, the absorbent main body 10 is disposed on the skin facing surface side of the absorbent body 4 having the absorbent core 40 containing the absorbent material and the absorbent body 4, as shown in FIGS. 1 and 2. The liquid-permeable surface sheet 2 that is located closer to the wearer's skin than 4 and can come into contact with the wearer's skin when worn; and the non-skin facing surface side of the absorbent body 4. And a liquid-impermeable or water-repellent back sheet 3 positioned far from the skin of the wearer. The absorptive main body 10 of the diaper 1 has a vertically long shape in which a central portion in the longitudinal direction X located in the crotch region 1M is inwardly bounded in a plan view as shown in FIG. Yes. The top sheet 2 and the back sheet 3 have dimensions larger than the absorbent body 4 interposed between the sheets 2 and 3, respectively, and form the outer shape of the diaper 1 in a deployed and expanded state as shown in FIG. ing.

  In this specification, the “skin-facing surface” is a surface of the absorbent article or its constituent member (for example, the absorbent body 4) that is directed toward the wearer's skin when the absorbent article is worn, that is, relatively worn. The “non-skin facing surface” is the side close to the skin of the person, and the “non-skin facing surface” is the surface of the absorbent article or its constituent members that is directed to the side opposite to the skin side (clothing side) when the absorbent article is worn, that is, relative The far side from the wearer's skin. Here, “when worn” means a state in which a normal proper wearing position is maintained.

  The absorbent main body 10 of the diaper 1 has a thread-like or belt-like elastic member (between the top sheet 2 and the back sheet 3 at the waists of the ventral region 1F and the back region 1R, that is, at the end in the longitudinal direction X). (Not shown) is fixed in a stretched state in the lateral direction Y over substantially the entire length of the diaper 1 in the lateral direction Y, whereby the elastic member (not shown) is attached to the waist when the diaper 1 is worn. It is preferable that a waist gather is formed by the contraction of). In addition, a thread-like or belt-like elastic member (not shown) is stretched in the lateral direction Y between the topsheet 2 and the backsheet 3 at the waistline portion corresponding to the waistline of the wearer in the back region 1R. It is preferable that a plurality of these are fixed, so that a waistline gather is formed in the waistline portion when the diaper 1 is worn by contraction of the elastic member (not shown).

  As shown in FIG. 1, the absorbent main body 10 of the diaper 1 has a pair of leak-proof cuffs 5 and 5 in which elastic members 11 extending in the vertical direction X are arranged on both side portions 10 s and 10 s along the vertical direction X. have. The leak-proof cuff 5 is formed to stand in the worn state in the crotch region 1M. Preferably, each side portion 10s of the absorbent main body 10 is provided with a leak-proof cuff 5 on the skin contact surface side of the topsheet 2 and over the entire longitudinal direction X of the side portion 10s. The leak-proof cuff 5 has an inner edge along the vertical direction X and an outer edge along the vertical direction X located outside the horizontal direction Y. In plan view as shown in FIG. The edge overlaps with the absorbent body 4, and the outer edge extends outward from the side edge along the longitudinal direction X of the absorbent body 4 in the lateral direction Y. As shown in FIGS. It is joined. A thread-like elastic member 11 is fixed to the inner edge of the leak-proof cuff 5 along the longitudinal direction X in an extended state. The inner edge portion of at least the crotch region 1M, specifically, for example, the crotch region 1M and the portion near the crotch region 1M in the abdomen region 1F and the dorsal region 1R of the diaper 1 including the topsheet 2. It is set as a free end part which is not joined to other constituent members. And in the front-and-rear edge part of the vertical direction X in the ventral | abdominal area | region 1F and the back | dorsal area | region 1R, the leak-proof cuff 5 is joined to the surface sheet 2 in the state by which the said inner edge part was laid inward. In the crotch region 1M, due to the contraction force of the elastic member 11 disposed on the free end portion, the portion from the free end portion to the outer edge portion is worn away from the top sheet 2 in the wearing state. The body fluid stands up toward the person's body, and leakage of body fluid from the absorbent main body 10 outward in the lateral direction Y can be prevented.

  Further, as shown in FIG. 1, a thread-like elastic member 12 extends along the vertical direction X between the leak-proof cuff 5 and the back sheet 3 in the left and right leg portions arranged around the legs of the wearer. Thus, a pair of leg gathers is formed in the leg portion when the diaper 1 is worn by contraction of the elastic member 12. The top sheet 2, the back sheet 3, the absorbent body 4, the leak-proof cuff 5 and the elastic members 11 to 12 are joined to each other by a known joining means such as a hot melt adhesive.

  In the diaper 1, as shown in FIG. 1, a pair of fastening tapes 6 and 6 are provided on both side edges along the longitudinal direction X of the back side region 1 </ b> R of the absorbent main body 10. A fastening portion 61 made of a male member of a mechanical surface fastener is attached to the fastening tape 6. A non-skin facing surface of the ventral region 1F of the diaper 1 is formed with a to-be-attached region 7 made of a female member of a mechanical surface fastener. The to-be-attached region 7 is a non-skin facing surface of the back sheet 3 that forms the non-skin facing surface of the ventral region 1F. A female member of a mechanical hook-and-loop fastener is attached to the non-skin facing surface by a known joining means such as an adhesive or heat seal. The fastening part 61 of the fastening tape 6 can be detachably fastened.

  As the top sheet 2, it is possible to use various types of conventionally used absorbent articles such as disposable diapers without any particular limitation, and it is assumed that the top sheet 2 is a liquid-permeable sheet that can permeate body fluids such as urine and feces. As a woven fabric, a nonwoven fabric, a porous sheet, etc. which consist of a synthetic fiber or a natural fiber, etc. can be used. As an example of the surface sheet 2, a non-woven fabric made of natural fibers such as cotton or a non-woven fabric made of various synthetic fibers subjected to hydrophilic treatment can be used. For example, a core-sheath structure type (including side-by-side type) composite fiber using polypropylene or polyester as the core component and polyethylene as the sheath component is made into a web by carding, and then nonwoven fabric (after this is opened at a predetermined location) by the air-through method That may be treated). From the viewpoint of high liquid permeability (dry feeling), an apertured sheet made of polyolefin such as low density polyethylene can also be preferably used.

As the back sheet 3, various materials conventionally used for absorbent articles such as disposable diapers can be used without particular limitation, and liquid-impermeable (including water repellency) and moisture-permeable materials are preferable. Used. Specifically, in order to obtain sufficient water vapor permeability, a porous film having a fine hole formed by stretching a film made of a synthetic resin such as polyethylene in which fine powder made of a filler such as calcium carbonate is dispersed is a back sheet. 3 can be suitably used.
As the leak-proof cuff 5, a liquid-impermeable (including water repellency / hydrophobicity) sheet that can be used as the back sheet 3 can be used.

  As shown in FIG. 1, the absorbent body 4 includes a liquid-retaining absorbent core 40 and a core wrap sheet 41 that covers the absorbent core 40. It is preferable that the absorbent core 40 and the core wrap sheet 41 are joined by a known joining means such as a hot melt adhesive except for a twist regulating portion 43 described later. In the crotch region 1M, both sides along the longitudinal direction X of the absorbent core 40 constituting the absorbent body 4 are bounded inward in the lateral direction Y in a plan view as shown in FIG. Preferably, the absorptive core 40 has an hourglass shape in which a central portion in the longitudinal direction X located in the crotch region 1M is bound inward and has a longitudinally long shape in the longitudinal direction X.

The absorbent core 40 is mainly composed of an absorbent material, and the content of the absorbent material in the absorbent core 40 is usually about 100% by mass. As an absorptive material, various things conventionally used for absorbent articles, such as a disposable diaper, can be used without a restriction | limiting in particular, For example, the synthetic fiber processed with the cellulosic fiber, such as a wood pulp, and a hydrophilizing agent And other hydrophilic fibers and water-absorbing polymers. Examples of the structure of the absorbent core 40 include a structure in which a hydrophilic fiber stack, a structure in which a water-absorbing polymer is supported on the stack, or a structure made of only a water-absorbing polymer.
As the core wrap sheet 41, the same one as conventionally used for this type of absorbent article can be used, and examples thereof include tissue paper.

  In the diaper 1, the absorptive core 40 has a plurality of twist restricting portions 43, 43,... Extending in the longitudinal direction X in the crotch region 1M, as shown in FIGS. In the diaper 1, each twist restricting portion 43 is formed not only in the crotch region 1M of the absorbent core 40 but also in the longitudinal direction X from the back region 1R to the ventral region 1F. The diaper 1 has four sway restricting portions 43, 43, 43, 43 as shown in FIG. 1, but the number of sway restricting portions is not limited to this.

  When the diaper 1 is worn, when the external force is applied to the diaper 1, the deflection restricting portion 43 is a starting point of deformation of the absorbent core 40 or a portion that is preferentially compressed. For this purpose, each twist restricting portion 43 is formed of, for example, a groove extending in the longitudinal direction X, a pressing groove, a non-stacking portion, or the like. The groove is an elongated recess having a predetermined width and having a bottom, and the basis weight of the bottom of the recess is lower than the basis weight of the peripheral portion excluding the recess. The squeezing groove is an elongated recess having a bottom having a predetermined width, and the density of the bottom of the recess is higher than the density of the peripheral portion excluding the recess. It is the same as the basis weight of the peripheral part excluding the recess. The non-stacked portion is a void portion where the bottom portion is removed from the groove and where the absorbent material constituting the absorbent core 40 is not present. In the diaper 1, as shown in FIG.2 and FIG.3, each twist control part 43 is the groove | channel formed in the non-skin opposing surface side of the absorptive core 40, and the skin opposing surface side of the absorptive core 40 is flat. It has become. The twist regulating portion 43 that is the groove is formed in a concave shape that is recessed from the non-skin facing surface side of the absorbent core 40 toward the skin facing surface side.

In the diaper 1, it is preferable that the twist restricting portion 43 has the same width, that is, the length along the horizontal direction Y, at any position in the vertical direction X.
In the diaper 1, the four lay regulating portions 43, 43, 43, 43 may have the same or different widths. In particular, it is preferable that the width of each deflection regulating portion 43 is the same because the absorber width is uniformly compressed when an external force is applied, the deflection is controlled, and unintentional deflection is less likely to occur. From the viewpoint of making this advantage even more prominent, the width of each twist regulating portion 43 is preferably 0.5 mm or more, more preferably 1 mm or more, and preferably 20 mm or less, and 10 mm or less. More specifically, it is preferably 0.5 mm or more and 20 mm or less, and more preferably 1 mm or more and 10 mm or less.

  In the diaper 1, the lengths along the vertical direction X may be the same as or different from each other in the four lay regulation parts 43, 43, 43, 43. In particular, it is preferable that the length of each twist restricting portion 43 is the same because the fit when worn is better. From the viewpoint of making this advantage even more conspicuous, the length of each twist regulating portion 43 is preferably 30 mm or more, more preferably 100 mm or more, and preferably 500 mm or less, and 400 mm or less. More preferably, it is preferably 30 mm or more and 500 mm or less, and more preferably 100 mm or more and 400 mm or less.

The basis weight of the absorbent core 40 excluding the twist regulating part 43 is preferably 300 g / m ² or more and 900 g / m ² or less from the viewpoint of suppressing the uncomfortable feeling when wearing the diaper 1 and improving the fit. it is further preferred 350 g / m ² or more 800 g / m ² or less.
The basis weight of the twist restricting portion 43, in other words, the basis weight of the absorbent core 40 located in the twist restricting portion 43 is lower than the basis weight of the absorbent core 40 excluding the twist restricting portion 43, and the diaper 1 is worn. suppressing uncomfortable feeling when, from the viewpoint of improving the fit, it is preferably 0 g / m ² or more 500 g / m ² or less, and more preferably 0 g / m ² or more 400 g / m ² or less. Incidentally, the basis weight of the absorbent core 40 is to be 0 g / m ^2, meaning that twist regulation portion 43 is a non-product defibrating unit there is no absorbent material.

  The absorbent core 40 used in the diaper 1 uses, for example, a stacking drum in which a concave portion is formed on the peripheral surface, and an absorbent material made of hydrophilic fibers such as pulp fibers and water-absorbing polymer particles is deposited in the concave portion. Thus, when the fiber stack is manufactured, among the air-permeable members constituting the bottom portion of the concave portion, it can be manufactured by making the portion that should become the twist regulating portion 43 that is the low basis weight region be low air-permeable. That is, among the air-permeable members, a non-ventilated non-stacked portion may be formed at the position where the twist regulating portion 43 is to be formed.

  In the diaper 1, the absorptive main body 10 is extended against the contraction force of the elastic member 11 as shown in FIGS. Skin care including a skin care placement portion 8 in which a hydrophilic skin care agent is disposed in a region sandwiched between a pair of fall-proof cuffs 5 and 5 on the top sheet 2 while lying on the skin facing surface of the skin It has the agent arrangement | positioning area | region 8T. Here, “the state in which the pair of leak-proof cuffs 5 and 5 are extended against the skin-facing surface of the topsheet 2 in the lateral direction Y inwardly against the contraction force of the elastic member 11” It means a state in which the elastic members 11, 12, etc. are extended and the entire diaper 1 is expanded to the design dimensions (same as the dimensions when flattened in a state where the influence of the elastic members is completely eliminated). In the diaper 1, the skin care agent arrangement region 8T is arranged on the skin facing surface of the topsheet 2, and in the lateral direction Y, in the region sandwiched between the pair of leak-proof cuffs 5 and 5, specifically, the pair The leakage prevention cuffs 5 and 5 are disposed in a region sandwiched between the free ends where the elastic members 11 are disposed, and in the longitudinal direction X, it is sufficient to be disposed over at least the crotch region 1M. In the diaper 1, the diaper 1 is arranged from the ventral region 1F to the dorsal region 1R. As described above, the skin care agent placement region 8T is not formed at a position overlapping with each leakage prevention cuff 5 in the top sheet 2, and the skin care agent is difficult to adhere to the leakage prevention cuff 5.

  In the skin care agent arrangement region 8T, the skin care agent may be arranged over the entire surface of the skin care agent arrangement region 8T, or the skin care agent may not be arranged over the entire surface of the skin care agent arrangement region 8T. In the diaper 1, as shown in FIG. 1, the skin care agent is not arranged over the entire surface of the skin care agent arrangement region 8 </ b> T, and the skin regulating part 43 of the absorbent core 40 is provided in the skin care agent arrangement region 8 </ b> T. The skin care agent is arranged at a position corresponding to the position excluding the skin care agent, and a skin care agent arrangement portion 8 where the skin care agent is arranged is formed. As shown in FIGS. 2 and 3, the skin care agent arrangement portion 8 is not arranged at a position overlapping the twist regulating portion 43, and the skin care agent arrangement portions 8 and 8 adjacent to each other in the lateral direction Y as viewed in cross section. There is no skin care agent between them. In the diaper 1, the skin care agent placement portion 8 includes a crotch placement portion 8M disposed over at least the crotch region 1M, a ventral placement portion 8F disposed only over the ventral region 1F, and a dorsal region 1R. And a back-side arrangement portion 8R arranged only over the top.

  In the diaper 1, the crotch arrangement portion 8 </ b> M is formed at positions corresponding to the gap regulating portions 43, 43 adjacent to each other in the lateral direction Y of the absorbent core 40, as shown in FIG. 1. Is formed. The three crotch arrangement portions 8M, 8M, 8M are continuously formed in a belt shape from the ventral region 1F to the back region 1R via the crotch region 1M. The three crotch arrangement portions 8M, 8M, and 8M may have the same width or different widths, but in the diaper 1, the width W1 (see FIG. 2) of each crotch arrangement portion 8M is formed to be the same. ing. The width W1 of each crotch arrangement portion 8M is preferably 1 mm or more, more preferably 3 mm or more, more preferably 20 mm or less, still more preferably 10 mm or less, specifically It is preferably 1 mm or more and 20 mm or less, and more preferably 3 mm or more and 10 mm or less.

In the diaper 1, the three crotch arrangement portions 8M, 8M, and 8M may have the same or different lengths along the vertical direction X. In the diaper 1, as shown in FIG. The length of the arrangement portion 8M is the same. The length of each crotch arrangement portion 8M is preferably 100 mm or more, more preferably 150 mm or more, more preferably 600 mm or less, still more preferably 450 mm or less, specifically 100 mm or more and 600 mm or less, more preferably 150 mm or more and 450 mm or less.
Here, when the crotch arrangement portion 8M is intermittently arranged in the vertical direction X, the length of the crotch arrangement portion 8M in the vertical direction X includes the portion arranged at the end in the vertical direction X most. Of length.

  In the diaper 1, as shown in FIG. 1, the abdominal side arrangement portion 8F is continuously arranged in a band shape only in the abdominal side region 1F on both sides along the longitudinal direction X of the skin care agent arrangement region 8T. Then, a pair is formed. Each of the ventral side arrangement portions 8F is free in the lateral direction Y in the lateral direction Y outer side than the twist restricting portion 43 positioned most outward in the lateral direction Y, and in which the elastic member 11 of the leak-proof cuff 5 is disposed. It arrange | positions in the horizontal direction Y inner side rather than the edge part.

  In the diaper 1, as shown in FIG. 1, the back-side arrangement portion 8R is continuously arranged in a strip shape only in the back-side area 1R on both sides along the longitudinal direction X of the skin care agent arrangement area 8T. Then, a pair is formed. Each of the back-side arrangement portions 8R is free in the lateral direction Y in the lateral direction Y more than the deflection restricting portion 43 positioned most outward in the lateral direction Y and in which the elastic member 11 of the leak-proof cuff 5 is disposed. It arrange | positions in the horizontal direction Y inner side rather than the edge part.

  In the diaper 1, the abdomen-side arrangement portions 8 </ b> F and the back-side arrangement portions 8 </ b> R may have the same width or different widths. The width W2 (see FIG. 3) of the portion 8R is formed to be the same. The width W2 of each ventral portion 8F and each back portion 8R is preferably 1 mm or more, more preferably 3 mm or more, and preferably 20 mm or less, and 10 mm or less. More preferably, it is preferably 1 mm or more and 20 mm or less, more preferably 3 mm or more and 10 mm or less.

  In the diaper 1, each ventral side arrangement portion 8 </ b> F and each back side arrangement portion 8 </ b> R may have the same or different length along the vertical direction X. In the diaper 1, as shown in FIG. 1. The lengths of the abdominal side arrangement portions 8F and the back side arrangement portions 8R are the same. The length of each ventral arrangement portion 8F and each dorsal arrangement portion 8R is shorter than the length of the crotch arrangement portion 8M, shorter than the length of the ventral region 1F or the dorsal region 1R, and preferably 20 mm or more. 30 mm or more, more preferably 100 mm or less, still more preferably 80 mm or less, specifically preferably 20 mm or more and 100 mm or less, and 30 mm or more and 80 mm or less. More preferably.

  In the diaper 1, the total length in the lateral direction Y of the skin care agent placement portion 8 in the crotch region 1 </ b> M is equal to that in the lateral direction Y of the skin care agent placement portion 8 in either the ventral region 1 </ b> F or the dorsal region 1 </ b> R. It is smaller than the total length. As described above, in the diaper 1, as shown in FIG. 1, in the diaper 1, the crotch arrangement portion 8M, 8M, and 8M is arranged from the ventral region 1F to the crotch region 1M. The back side region 1R is formed over a pair of ventral side placement portions 8F, 8F only over the ventral side region 1F, and the pair of back side placement portions 8R, 8R is formed over the back side region 1R. It is formed only over. Therefore, in the diaper 1, the total length in the horizontal direction Y of the arrangement portion 8 in the crotch region 1M is three times the length (width) W1 in the horizontal direction Y of the crotch arrangement portion 8M. The total length in the horizontal direction Y of the arrangement portion 8 in the side region 1F is three times the length (width) W1 in the horizontal direction Y of the crotch arrangement portion 8M and the horizontal direction Y of the ventral arrangement portion 8F. The sum of the length (width) W2 and the total length in the lateral direction Y of the placement portion 8 in the back region 1R is the length (width) of the crotch placement portion 8M in the lateral direction Y. This is the sum of three times the length W1 and twice the length (width) W2 of the back side portion 8R in the lateral direction Y. Therefore, in the diaper 1, the total length in the lateral direction Y of the skin care agent placement portion 8 in the crotch region 1M is the length in the lateral direction Y of the skin care agent placement portion 8 in each of the ventral region 1F and the dorsal region 1R. It is smaller than the total.

  In the diaper 1, in the crotch region 1 </ b> M, the amount of the skin care agent disposed is more than the agent placement center between the agent placement side portions 8 </ b> Ts and 8 </ b> Ts than the agent placement side portions 8 </ b> Ts and 8 </ b> Ts along the longitudinal direction X of the skin care agent placement region 8 </ b> T. The portion 8Tc is larger. Here, when the agent arrangement side portions 8Ts and 8Ts and the agent arrangement center portion 8Tc have three crotch arrangement portions 8M, 8M, and 8M in the crotch region 1M as in the diaper 1, One crotch arrangement portion 8M at the center in the lateral direction Y is the agent arrangement central portion 8Tc, and the remaining crotch arrangement portions 8M and 8M other than the one crotch arrangement portion 8M are the agent arrangement side portions 8Ts. Further, when the skin care agent is arranged over the entire surface of the skin care agent arrangement region 8T or has a crotch arrangement portion 8M other than three, the agent arrangement side portions 8Ts and 8Ts and the agent arrangement center portion 8Tc are classified. When it is difficult to remove, the skin care agent placement region 8T is divided into three equal parts in the lateral direction Y, and the central part of the skin care agent placement region 8T divided into three is defined as the agent placement center portion 8Tc. The remaining part located on the side is referred to as agent arrangement side parts 8Ts, 8Ts. Further, the “placement amount of the skin care agent” means the amount of the skin care agent disposed by applying the skin care agent to the top sheet 2.

  As the hydrophilic skin care agent used for forming the arrangement portion 8 of the skin care agent, those having effects such as protection and healing on the wearer's skin can be used without particular limitation. For example, as a preferable skin care agent, a diamide derivative represented by the following formula (I) can be mentioned. The diamide derivative represented by the following formula (I) is a diamide derivative of the invention described in International Publication No. WO00 / 61097, and has a medicinal effect of improving the moisture retention ability and barrier function of the stratum corneum. ing. When the diamide derivative shifts to the wearer's skin while the diaper 1 is worn, it functions as an oily skin care agent and can suppress / improve skin irritation.

  When the diamide derivative is used, only one diamide derivative may be used, or two or more diamide derivatives may be used in combination.

Moreover, as another hydrophilic skin care agent which can be used in order to form the arrangement | positioning part 8 of a skin care agent, the oil-based skin care agent etc. which are used as an emollient in the field | area of cosmetics can be used, for example. Specific examples of the other hydrophilic skin care agents include liquid paraffin, silicone oil, animal and vegetable oils (olive oil, jojoba oil, safflower oil, squalane and squalene, etc.), monoglyceride, diglyceride, triglyceride, aliphatic ether (myristyl-1 , 3-dimethylbutyl ether, palmityl-1,3-dimethylbutyl ether, stearyl-1,3-dimethylbutyl ether, palmityl-1,3-methylpropyl ether, stearyl-1,3-methylpropyl ether), isostearyl-cholesterol esters, paraffin waxes, C ₁₂ -C ₂₂ fatty acids, C ₁₂ -C ₄₄ fatty ethers, C ₁₂ -C ₂₂ fatty alcohols, vaseline, fatty acid sorbitan esters (monoesters, diesters, and any of triesters ), Polyoxyethylene fatty acid sorbitan ester (any of monoester, diester, and triester), metal exploration (magnesium stearate, etc.), sucrose fatty acid ester, cyclodextrin fatty acid ester, silicone, silicone series Examples of the resin include an emollient used in the invention described in JP-A No. 2004-298643 or JP-T-2008-522772, and a lotion composition containing an emollient and a fixing agent.
The various skin care agents may be used alone or in combination of two or more.
From the viewpoint of not lowering the permeability of excreted body fluid on the surface sheet 2, C ₁₂ -C ₂₂ fatty alcohols (preferably stearyl alcohol), can be preferably used a mixture of diamide derivative of the above formula (I) . The mixing ratio of stearyl alcohol and the diamide derivative of the above formula (I) (stearyl alcohol / diamide derivative) determines the transferability of the skin care agent to the skin, skin care effect, feel during use, and body fluid permeability of the top sheet 2 From a viewpoint, it is preferable that it is 90 / 10-50 / 50 (mass%). It is preferable that these mixtures are heated to increase their fluidity, and then coated on the top sheet 2 to be attached. After adhering to the top sheet 2, the fluidity is lowered by leaving it to stand at room temperature, so that the top sheet 2 is easily held.

  Examples of the coating method for applying the hydrophilic skin care agent on the surface sheet 2 include a die coater method, a slot spray method, a curtain spray method, a melt blown method, a spiral spray method, a gravure method, and a bead method.

In the crotch region 1M, the amount of skin care agent disposed in the skin care agent placement region 8T, in other words, the amount of skin care agent actually applied is greater in the agent placement center 8Tc than in the agent placement side 8Ts. The ratio of the placement amount of the skin care agent in the agent placement center portion 8Tc to the placement amount of the skin care agent in the agent placement side portion 8Ts (the placement amount of the agent placement center portion 8Tc / the placement amount of the agent placement side portion 8Ts) is From the viewpoint of the effect of the skin care agent on the skin and the permeability of the body fluid to the top sheet, it is preferably 1.5 times or more, more preferably 2 times or more, and 100 times or less. Is preferably 10 times or less, specifically 1.5 times or more and 100 times or less, and more preferably 2 times or more and 10 times or less.
Specifically, placement of agents disposed side 8Ts skin care agent, from the same viewpoint, it is preferable to 0.05 g / m ² or more, more preferably to 0.10 g / m ² or more, and , it is preferable that the 2.00 g / m ² or less, more preferably to 1.00 g / m ² or less, specifically, be 0.05 g / m ² or more 2.00 g / m ² or less preferably, it is further preferable that the 0.10 g / m ² or more 1.00 g / m ² or less.
From the same viewpoint, the amount of the skin care agent in the agent placement center 8Tc is preferably 0.10 g / m ² or more, more preferably 0.30 g / m ² or more, and 5.00 g. / M ² or less, more preferably 3.00 g / m ² or less, specifically preferably 0.10 g / m ² or more and 5.00 g / m ² or less. and more preferably be .30g / m ² or more 3.00 g / m ² or less.

Incidentally, ventral placement portion 8F, or placement of the skin care agent of the dorsal arrangement portion 8R is preferably to 0.05 g / m ² or more, more preferably to 0.10 g / m ² or more, and , it is preferable that the 2.00 g / m ² or less, more preferably to 1.00 g / m ² or less, specifically, be 0.05 g / m ² or more 2.00 g / m ² or less preferably, it is further preferable that the 0.10 g / m ² or more 1.00 g / m ² or less.

  The contact angle between the skin care agent-arranged portion 8 disposed on the skin-facing surface of the topsheet 2 and the ion-exchanged water is less than 90 degrees, and preferably 55 degrees or more and 85 degrees or less. If the contact angle measured by the following method is less than 90 degrees, it means that the arrangement part 8 of the skin care agent is hydrophilic. The smaller the contact angle, the higher the hydrophilicity (the lower the hydrophobicity). means.

<Measurement method of contact angle>
The fiber in the arrangement part 8 of the skin care agent is taken out from the surface sheet 2 to be measured, and the contact angle of water with the fiber is measured. As a measuring device, an automatic contact angle meter MCA-J manufactured by Kyowa Interface Science Co., Ltd. is used. Distilled water is used to measure the contact angle. The amount of liquid discharged from an ink jet type water droplet discharge part (manufactured by Cluster Technology, Inc., pulse injector CTC-25 having a discharge part pore diameter of 25 μm) is set to 20 picoliters, and a water drop is dropped directly above the fiber. The state of dripping is recorded on a high-speed recording device connected to a horizontally installed camera. The recording device is preferably a personal computer incorporating a high-speed capture device from the viewpoint of image analysis later. In this measurement, an image is recorded every 17 msec. In the recorded video, the first image of water droplets on the fiber is attached to the attached software FAMAS (software version is 2.6.2, analysis method is droplet method, analysis method is θ / 2 method, image processing algorithm Is non-reflective, the image processing image mode is frame, the threshold level is 200, and the curvature is not corrected)), and the angle between the surface of the water droplet that touches the air and the fiber is calculated and contacted. A corner. The fiber taken out from the object to be measured is cut into a fiber length of 1 mm, and the fiber is placed on a sample table of a contact angle meter and kept horizontal. Two different contact angles are measured per fiber. N = 5 contact angles are measured to one decimal place, and a total of 10 measured values (rounded to the second decimal place) is defined as the contact angle of the fiber with water. The measurement environment is a room temperature of 22 ± 2 ° C. and a humidity of 65 ± 2% RH.

  In the case where the surface sheet 2 which is a constituent member is taken out from the absorbent article and evaluated and measured, if the constituent member is fixed to another constituent member by adhesive, fusion, etc., the fixing The portion is removed after being removed by applying a solvent, spraying hot air with a dryer, or spraying a cold spray (for example, a commercial product manufactured by Nichiban Co., Ltd.).

  As described above, in the diaper 1, as shown in FIGS. 1 to 3, the absorbent main body 10 extends against the contraction force of the elastic member 11, and the pair of leak-proof cuffs 5, 5 are placed in the lateral direction Y. A skin care agent in which a hydrophilic skin care agent is arranged in a region sandwiched between a pair of fallen leak-proof cuffs 5 and 5 in the surface sheet 2 in a state of being laid down on the skin facing surface of the surface sheet 2 It has an arrangement area 8T. Here, since the hydrophilic skin care agent is arranged, the body fluid permeability of the topsheet 2 can be maintained. Moreover, since the skin care agent arrangement | positioning area | region 8T is formed in the area | region pinched | interposed by a pair of leak-proof cuffs 5, 5, it is hard for a skin care agent to adhere to the leak-proof cuff 5 during wearing of the diaper 1, and a leak-proof cuff. Therefore, it is possible to prevent the body fluid such as watery stool from leaking out and leaking. In particular, the amount of the skin care agent in the skin care agent placement region 8T is larger in the agent placement center portion 8Tc than in the agent placement side portion 8Ts in the crotch region 1M, so the agent placement side portion 8Ts with a relatively small amount of placement. It is difficult for the skin care agent disposed on the skin to adhere to the leak-proof cuff 5 during wearing, and body fluid leakage can be prevented.

  1 and 2, the crotch region 1M of the diaper 1 has a plurality of twist restricting portions 43, 43... In which the absorbent core 40 extends in the longitudinal direction X. In the state where 1 is worn, when an external force is applied to the diaper 1 in the width direction, the diaper 1 is compressed in the width direction. At this time, the warp restricting portion 43 is preferentially compressed and deformed in the width direction. It is possible to control the position where it occurs, and unintentional twisting is less likely to occur. Therefore, the skin care agent is less likely to adhere to the leak-proof cuff 5 while the diaper 1 is worn. In particular, in the skin care agent arrangement region 8T of the diaper 1, since the skin care agent is arranged at a position corresponding to the position of the absorbent core 40 excluding the twist regulating portion 43, the skin care is provided on the skin facing surface of the absorbent core 40. The agent placement region 8T can be fastened, and the skin care agent hardly adheres to the leak-proof cuff 5.

  Moreover, as shown in FIGS. 1-3, in the diaper 1, the sum total of the length of the horizontal direction Y of the arrangement | positioning part 8 of the skin care agent in the crotch region 1M is the skin care agent in each of the ventral region 1F and the dorsal region 1R. It is smaller than the sum total of the lengths in the horizontal direction Y of the arrangement portion 8. For this reason, the skin care agent arrangement portion 8 in the crotch region 1M is relatively small, so that the skin care agent is unlikely to adhere to the leak-proof cuff 5 in the crotch region 1M that is likely to leak while the diaper 1 is worn. In particular, in the crotch region 1M, since the absorbent core 40 constituting the absorbent body 4 has both side portions along the vertical direction X bound to the inner side in the horizontal direction Y, when the diaper 1 is worn, an external force is applied to the diaper 1. Even if is added, it is difficult for the absorbent body 4 to occur and the skin care agent is difficult to adhere to the leak-proof cuff 5.

  Moreover, as shown in FIG.2 and FIG.3, in the diaper 1, each twist control part 43 distribute | arranged to the absorptive core 40 is a groove | channel formed in the non-skin opposing surface side of the absorptive core 40, and is absorbed. The skin facing surface side of the sex core 40 is flat. Therefore, when an external force is applied to the diaper 1 in a state where the diaper 1 is worn, in addition to the effects described in the paragraph [0048], the absorbent body 4 may be disposed on the non-skin facing side from the skin facing side of the wearer. The skin care agent is less likely to adhere to the leak-proof cuff 5.

  As mentioned above, although this invention was demonstrated based on the embodiment, this invention can be changed suitably, without being restrict | limited to the said embodiment.

  For example, in the diaper 1, as shown in FIGS. 1 and 3, the absorbent core 40 has a plurality of twist restriction portions 43 extending in the longitudinal direction X, but does not have the twist restriction portion 43. May be. Further, in the diaper 1, the twist restricting portion 43 is a groove formed on the non-skin facing surface side of the absorbent core 40, but may be a groove formed on the skin facing surface side of the absorbent core 40. .

  Moreover, in the diaper 1, as shown in FIG. 1, the arrangement | positioning part 8 of a skin care agent has the crotch arrangement | positioning part 8M distribute | arranged at least over the crotch area | region 1M, and the ventral side arrange | positioned only over the abdominal area | region 1F. Although it has the arrangement | positioning part 8F and the back side arrangement | positioning part 8R distribute | arranged only over the back | dorsal area | region 1R, if it has the crotch arrangement | positioning part 8M at least in the crotch area 1M, the abdominal side arrangement | positioning part 8F And the back side arrangement | positioning part 8R does not need to be provided.

  In the diaper 1, as shown in FIG. 1, three crotch arrangement portions 8M, 8M, 8M are continuously formed from the ventral region 1F to the back region 1R through the crotch region 1M. The ventral arrangement portion 8F is continuously arranged in the ventral region 1F, and the dorsal arrangement portion 8R is continuously arranged in the dorsal region 1R, but the crotch arrangement portion 8M, the ventral arrangement portion 8F, and The back-side arrangement portions 8R may be arranged intermittently in a dot shape in the vertical direction X and discontinuously.

  In addition, the absorbent article of the present invention is not limited to a deployable disposable diaper, but widely includes articles used to absorb body fluids (urine, loose stool, menstrual blood, sweat, etc.) discharged from the human body, and is a pants type. Disposable diapers, sanitary napkins, sanitary shorts, and the like are also included.

The following absorbent article is disclosed further regarding embodiment of this invention mentioned above.
<1>
A longitudinal direction extending from the wearer's belly side to the back side through the crotch portion, comprising an absorbent main body having a liquid-retaining absorbent body and a liquid-permeable surface sheet on the skin-facing surface side of the absorbent body; And an absorptive article comprising a crotch region disposed in the crotch region and a ventral region and a dorsal region extending in the front and back thereof, wherein the absorbent main body includes: On both sides along the vertical direction, it has a pair of leak-proof cuffs arranged with elastic members extending in the vertical direction, and the leak-proof cuffs are formed to stand in the worn state in the crotch region, The absorbent main body is stretched against the contraction force of the elastic member, and the pair of leak-proof cuffs are laid down on the skin-facing surface of the topsheet in a laterally inward direction. In the region sandwiched between the pair of leak-proof cuffs, A skin care agent placement region including a skin care placement region where the agent is placed, and in the crotch region, the placement amount of the skin care agent is more than the agent placement both sides along the longitudinal direction of the skin care agent placement region Absorbent article with more agent placement center between both sides.

<2>
The absorbent body has an absorbent core containing an absorbent material, and the absorbent core has a plurality of twist restricting portions extending in a vertical direction in the crotch region, according to <1>. Absorbent article.
<3>
The absorbent article according to <2>, wherein, in the skin care agent arrangement region, the skin care agent is arranged at a position corresponding to a position of the absorbent core excluding the twist regulating portion.
<4>
The absorbent article according to <2> or <3>, wherein the twist regulating portion is formed in a concave shape that is recessed from the non-skin facing surface side to the skin facing surface side of the absorbent core.
<5>
The above-mentioned twist regulation part is an absorptive article given in any 1 of the above-mentioned <2>-<4> whose widths are the same.
<6>
The width | variety of the said twist regulation part is 0.5 mm or more, Preferably it is 1 mm or more, and is 20 mm or less, Preferably it is 10 mm or less, Absorbent article in any one of said <2>-<5>. .
<7>
The above-mentioned twist regulation part is an absorptive article given in any 1 of the above-mentioned <2>-<6> whose length along the lengthwise direction is the same.
<8>
The length of the twist regulation part is 30 mm or more, preferably 100 mm or more, and 500 mm or less, preferably 400 mm or less, The absorptive article given in any 1 of the above <2>-<7>.
<9>
The basis weight of the absorbent core excluding the twist regulating portion is 300 g / m ² or more and 900 g / m ² or less, preferably 350 g / m ² or more and 800 g / m ² or less, in the above <2> to <8>. The absorbent article of any one.
<10>
The basis weight of the absorbent core portion located in the twist regulating portion is lower than the basis weight of the absorbent core excluding the twist regulating portion, and the basis weight of the absorbent core portion located in the twist regulating portion. The absorbent article according to any one of <2> to <9>, wherein the amount is 0 g / m ² or more and 500 g / m ² or less, preferably 0 g / m ² or more and 400 g / m ² or less.

<11>
The skin care agent placement region is arranged from the ventral region to the dorsal region, and the total length in the lateral direction of the skin care agent placement portion in the crotch region is any of the ventral region and the dorsal region. The absorbent article according to any one of <1> to <10>, wherein the absorbent article is smaller than a total length in the lateral direction of the portion where the skin care agent is disposed.
<12>
The absorbent body has an absorbent core including an absorbent material, and the absorbent core has a crotch region in which both side portions along the longitudinal direction are inwardly bound, and the above <1> to <11> The absorbent article of any one.
<13>
The absorbent article according to any one of <1> to <12>, wherein the absorbent body has an absorbent core including an absorbent material, and the absorbent core is flat on a skin facing surface side.
<14>
The skin care placement portion has a crotch placement portion arranged at least over the crotch region, and the crotch placement portion continues from the ventral region through the crotch region to the back region. The absorbent article according to any one of <1> to <13>, which is formed in a band shape.
<15>
The absorbent article according to <14>, wherein a width W1 of the crotch arrangement portion is 1 mm or more, preferably 3 mm or more, and 20 mm or less, preferably 10 mm or less.
<16>
The length of the crotch arrangement part is 100 mm or more, preferably 150 mm or more, and 600 mm or less, preferably 450 mm or less, The absorbent article according to <14> or <15>.
<17>
The skin care placement portion has a ventral placement portion disposed only over the ventral region, and the ventral placement portion is located on the ventral region on both sides along the longitudinal direction of the skin care agent placement region. The absorbent article according to any one of <1> to <16>, wherein the absorbent article is continuously arranged only in a band shape.
<18>
The absorbent body has an absorbent core including an absorbent material, and the absorbent core has a plurality of twist restricting portions extending in the vertical direction in the crotch region, In the lateral direction, it is disposed laterally outward from the twist restricting portion located most laterally outward, and laterally inward from the free end portion on which the elastic member of the leak-proof cuff is disposed. The absorbent article according to <17>.
<19>
The skin care placement portion has a dorsal placement portion disposed only over the dorsal region, and the dorsal placement portion is only in the dorsal region on both sides along the longitudinal direction of the skin care agent placement region. The absorbent article according to any one of <1> to <18>, which is continuously arranged in a band shape.

<20>
The skin care placement portion includes at least a crotch placement portion disposed over the crotch region, a ventral placement portion disposed only over the abdominal region, and a back disposed only over the back region. The absorbent article according to any one of <1> to <19>, wherein the absorbent article has a side arrangement portion, and a width W2 of the ventral side arrangement portion and the back side arrangement portion is the same.
<21>
The absorbent article according to <20>, wherein the width W2 of the ventral side arrangement part and the back side arrangement part is 1 mm or more, preferably 3 mm or more, and 20 mm or less, preferably 10 mm or less. .
<22>
The absorbent article according to <20> or <21>, wherein the ventral portion and the back portion have the same length along the vertical direction.
<23>
The length of the ventral portion and the dorsal portion is shorter than the length of the crotch portion and shorter than the length of the ventral region or the dorsal region, and the ventral portion and the dorsal side The length of an arrangement | positioning part is 20 mm or more, Preferably it is 30 mm or more, Moreover, 100 mm or less, Preferably it is 80 mm or less, Absorbent article in any one of said <20>-<22>.
<24>
The sum of the lateral lengths of the skin care placement portions in the crotch region is smaller than the sum of the lateral lengths of the skin care placement portions in either the ventral region or the dorsal region, The absorbent article according to any one of <1> to <23>.
<25>
The absorbent article according to any one of <1> to <24>, wherein the hydrophilic skin care agent is a diamide derivative represented by the following formula (I).

<26>
The skin care agent arrangement region has an agent arrangement side part and an agent arrangement center part, and a ratio of the amount of skin care agent arranged in the agent arrangement center part to the amount of skin care agent arranged on the agent arrangement side part ((agent arrangement center Part arrangement amount / agent arrangement side part arrangement amount) × 100) is 150% (1.5 times) or more, preferably 200% (2 times) or more, and 10000% (100 times) or less, The absorbent article according to any one of <1> to <25>, preferably 1000% (10 times) or less.
<27>
Placement of skin care agent of the agent disposed sides, 0.05 g / m ² or more, preferably 0.10 g / m ² or more, and, 2.00 g / m ² or less, preferably 1.00 g / m The absorbent article according to <26>, which is ² or less.
<28>
The amount of the skin care agent at the center of the agent arrangement is 0.10 g / m ² or more, preferably 0.30 g / m ² or more, and 5.00 g / m ² or less, preferably 3.00 g / m. The absorbent article according to <26> or <27>, which is ² or less.
<29>
The skin care arrangement part has an abdominal arrangement part arranged only over the abdominal area and a dorsal arrangement part arranged only over the dorsal area, or the abdominal arrangement part, or placement of skin care agent of the dorsal placement portion, 0.05 g / m ² or more, preferably 0.10 g / m ² or more, and, 2.00 g / m ² or less, preferably 1.00 g / m The absorbent article according to any one of <1> to <28>, which is ² or less.
<30>
<1> to <1> to each side portion of the absorbent main body, wherein the leak-proof cuff is disposed on the skin contact surface side of the topsheet and over the entire longitudinal direction of the side portion. The absorbent article according to any one of <29>.
<31>
Between the top sheet and the back sheet at the waist part of each of the ventral region and the dorsal region, that is, the longitudinal end, a thread-like or belt-like elastic member is substantially in the lateral direction of the absorbent article. <1> to <30>, wherein a waist gather is formed by contraction of the elastic member at the waist when the absorbent article is worn, and is fixed in a stretched state in the lateral direction over the entire length. The absorbent article according to any one of 1.
<32>
Between the top sheet and the back sheet at the waist part corresponding to the wearer's waist around the back region, a plurality of thread-like or belt-like elastic members are fixed in a laterally extended state, The absorbent article according to any one of <1> to <31>, wherein a waistline gather is formed by contraction of the elastic member at the waistline part when the absorbent article is worn.

1 Unfoldable disposable diaper (absorbent article)
DESCRIPTION OF SYMBOLS 10 Absorbent main body 2 Top sheet 3 Back sheet 4 Absorber 40 Absorbent core 41 Core wrap sheet 43 Twist regulation part 5 Leak-proof cuff 6 Fastening tape 61 Fastening part 7 Sticking area 8 Skin care agent arrangement part 8T Skin care agent Arrangement area 8M Inseam arrangement part 8F Abdomen side arrangement part 8R Dorsal arrangement part 1F Abdomen area 1M Inseam area 1R Dorsal area X Longitudinal direction Y Lateral direction

Claims (6)

A longitudinal direction extending from the wearer's belly side to the back side through the crotch portion, comprising an absorbent main body having a liquid-retaining absorbent body and a liquid-permeable surface sheet on the skin-facing surface side of the absorbent body; And an absorptive article comprising a crotch region arranged in the crotch region, and a ventral region and a dorsal region extending in front and back thereof,
The absorptive main body has a pair of leak-proof cuffs in which elastic members extending in the vertical direction are arranged on both sides along the vertical direction,
The leak-proof cuff is formed to stand in a worn state in the crotch region,
The absorbent main body is stretched against the contraction force of the elastic member, and the pair of leak-proof cuffs are laid down on the skin-facing surface of the topsheet in a laterally inward direction. In a region sandwiched between the pair of leak-proof cuffs, a skin care agent placement region including a skin care placement portion in which a hydrophilic skin care agent is disposed,
In the crotch region, the amount of the skin care agent disposed is greater in the agent placement center between the agent placement side portions than in the agent placement side portions along the longitudinal direction of the skin care agent placement region. The absorbent body has an absorbent core including an absorbent material;
2. The absorbent article according to claim 1, wherein the absorbent core has a plurality of twist restricting portions extending in a longitudinal direction in the crotch region.   The absorptive article according to claim 2 in which said skin care agent is arranged in a position corresponding to a position except said twist regulation part of said absorptive core in said skin care agent arrangement field. The skin care agent placement region is arranged from the ventral region to the dorsal region,
The sum of the lateral lengths of the arrangement portions of the skin care agent in the crotch region is smaller than the sum of the lateral lengths of the arrangement portions of the skin care agent in either the ventral region or the dorsal region. Item 4. The absorbent article according to any one of Items 1 to 3. The absorbent body has an absorbent core including an absorbent material;
5. The absorbent article according to claim 1, wherein in the crotch region, both side portions along the longitudinal direction are bound inward in the crotch region. The absorbent body has an absorbent core including an absorbent material;
The absorbent article according to any one of claims 1 to 5, wherein the absorbent core is flat on a skin facing surface side.

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