JP6836392B2 - Absorbent article - Google Patents

Description

The present invention relates to absorbent articles such as disposable diapers.

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

Japanese Patent Application Laid-Open No. 2008-522772 Special Table 2010-525862 Japanese Unexamined Patent Publication No. 2010-75733

In the disposable diaper described in Patent Document 1, since a hydrophobic lotion is arranged on the surface of the top sheet, it is difficult to improve the body fluid absorption.

Further, since the disposable diapers described in Patent Documents 2 and 3 use a hydrophilic lotion, there is no problem in terms of body fluid absorption, and the body fluid can be absorbed. However, if the hydrophilic lotion adheres to the components of the diaper that you want to keep hydrophobic to prevent lateral leakage of the body fluid during use, the body fluid will be caused by the adhered part of the hydrophilic lotion. Induces leakage. 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, the present invention is to provide an absorbent article capable of eliminating the above-mentioned drawbacks of the prior art.

The present invention comprises an absorbent body having a liquid-retaining absorber and a liquid-permeable surface sheet on the skin-facing surface side of the absorber, from the ventral side of the wearer to the dorsal side via the crotch portion. An absorbent article having a longitudinal direction extending and a lateral direction orthogonal to the extending longitudinal direction, and an inseam region arranged in the crotch portion, and a ventral region and a dorsal region extending in front of and behind the inseam region. The main body has a pair of leak-proof cuffs in which elastic members in a vertically extended state are arranged on both sides along the vertical direction, and the leak-proof cuffs are formed so as to stand up in the inseam region in a worn state. The absorbent body is stretched against the contraction force of the elastic member, and the pair of leak-proof cuffs are laid down laterally inward on the skin-facing surface of the surface sheet. Within the region sandwiched between the pair of leak-proof cuffs that have fallen down on the surface sheet, there is a skin care agent placement region including a skin care placement portion in which a hydrophilic skin care agent is arranged, and the skin care agent is placed in the inseam region. The amount is an absorbent article in which the central portion of the agent arrangement between the both sides of the agent arrangement is larger than the amount of the agent arrangement both sides along the vertical direction of the skin care agent arrangement region.

According to the present invention, there is provided an absorbable article having excellent body fluid absorbability and less likely to cause leakage of body fluid due to adhesion of a skin care agent.

FIG. 1 is a plan view schematically showing a skin-facing surface, that is, a surface sheet side of a deployable disposable diaper according to an embodiment of the absorbent article of the present invention, and the elastic members of each part are stretched and expanded in a plane shape. It is a plan view in the unfolded state. FIG. 2 is a cross-sectional view schematically showing a cross section taken along line II-II of FIG. FIG. 3 is a cross-sectional view schematically showing a cross section taken along line III-III of FIG.

Hereinafter, the absorbent article of the present invention will be described with reference to the drawings based on an example of a deployable disposable diaper which is a preferred embodiment thereof. 1 to 3 show the deployable disposable diaper 1 of the present embodiment. The diaper 1 includes an absorbent body 10 having a liquid-retaining absorber 4 and a liquid-permeable surface sheet 2 on the skin-facing surface side of the absorber 4. The diaper 1 provided with the absorbent body 10 includes a vertical direction X extending from the ventral side of the wearer to the dorsal side via the crotch portion and a lateral direction Y orthogonal to the vertical direction X, and the inseam arranged in the crotch portion. It includes a region 1M, a ventral region 1F extending before and after the region 1M, and a dorsal region 1R. The ventral region 1F, the inseam region 1M, and the dorsal region 1R correspond to each region 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 arranged to face the excretion portion of the wearer's penis, anus, etc. when the diaper 1 is worn, and the excretion portion facing portion is usually in the vertical direction X of the diaper 1. It is located in or near the center. The thickness direction, which is a vertical direction orthogonal to the plane direction including the vertical direction X and the horizontal direction Y, will be described as the Z direction.

In the diaper 1, as shown in FIGS. 1 and 2, the absorbent body 10 is arranged 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. A 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 is arranged on the non-skin facing surface side of the absorber 4 and is closer to the non-skin facing surface than the absorber 4. It includes a liquid-impermeable or water-repellent back sheet 3 located far from the wearer's skin. In the plan view as shown in FIG. 1, the absorbent body 10 of the diaper 1 has a vertically long shape in which the central portion of the vertical direction X located in the inseam region 1M is constricted inward and is long in one direction, that is, the vertical direction X. There is. The front surface sheet 2 and the back surface sheet 3 each have a size larger than that of the absorber 4 interposed between the two sheets 2 and 3, and form the outer shape of the unfolded and stretched diaper 1 as shown in FIG. ing.

In the present specification, the "skin facing surface" is a surface of the absorbent article or its constituent member (for example, the absorber 4) that is directed toward the skin side of the wearer when the absorbent article is worn, that is, relatively worn. The side close to the skin of a 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 to the skin. On the side far from the wearer's skin. In addition, "when worn" here means a state in which a normal proper wearing position is maintained.

The absorbent body 10 of the diaper 1 has a thread-like or strip-shaped elastic member (a thread-like or strip-shaped elastic member) between the front surface sheet 2 and the back surface sheet 3 at the waist portions of the ventral region 1F and the dorsal region 1R, that is, at the ends in the vertical direction X. (Not shown) is fixed in a laterally extended state over substantially the entire length of the lateral direction Y of the diaper 1, whereby the elastic member (not shown) is attached to the waist portion when the diaper 1 is worn. It is preferable that waist gathers are formed by the contraction of). Further, between the front surface sheet 2 and the back surface sheet 3 in the waist circumference corresponding to the wearer's waist circumference in the back side region 1R, a thread-like or band-shaped elastic member (not shown) is extended in the lateral direction Y. It is preferable that a plurality of diapers are fixed so that the waist circumference gathers are formed on the waist circumference portion when the diaper 1 is worn due to the contraction of the elastic member (not shown).

As shown in FIG. 1, the absorbent body 10 of the diaper 1 has a pair of leakage-proof cuffs 5, 5 in which elastic members 11 in an extended state in the vertical direction X are arranged on both side portions 10s, 10s along the vertical direction X. have. The leak-proof cuff 5 is formed so as to stand up in the inseam region 1M in the worn state. Preferably, on each side portion 10s of the absorbent main body 10, a leakage-proof cuff 5 is arranged on the skin contact surface side of the surface sheet 2 and over the entire vertical direction X of the side portion 10s. The leak-proof cuff 5 has an inner edge portion along the vertical direction X and an outer edge portion located outside the horizontal direction Y and along the vertical direction X, and the inner side thereof is viewed in a plan view as shown in FIG. The edge portion overlaps with the absorber 4, and the outer edge portion extends outward in the horizontal direction Y from the side edge of the absorber 4 along the vertical direction X, and as shown in FIGS. 2 and 3, the back surface sheet 3 It is joined. A thread-like elastic member 11 is fixed to the inner edge of the leak-proof cuff 5 in an extended state along the vertical direction X. The inner edge portion of the diaper 1 including the surface sheet 2 is at least in the inseam region 1M, specifically, for example, in the inseam region 1M and the portion closer to the inseam region 1M in the ventral region 1F and the dorsal region 1R. It is a free end that is not joined to other components. Then, at the front-rear end portions in the vertical direction X in the ventral region 1F and the dorsal region 1R, the leakage-proof cuff 5 is joined to the surface sheet 2 with the inner edge portion lying down inward. In the inseam region 1M, due to the contraction force of the elastic member 11 arranged at the free end portion, the portion from the free end portion to the outer edge portion fixed is worn apart from the surface sheet 2 in the wearing state. It becomes possible to stand up toward the person's body and prevent the leakage of body fluid from the absorbent body 10 to the lateral Y outward.

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 surface sheet 3 at the left and right leg portions arranged around the wearer's legs. It is fixed in a state, so that a pair of leg gathers are formed on the leg portion when the diaper 1 is worn due to the contraction of the elastic member 12. The front surface sheet 2, the back surface sheet 3, the absorber 4, the leakage-proof cuff 5, and the elastic members 11 to 12 are bonded to each other by a known bonding 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 of the dorsal region 1R of the absorbent body 10 along the vertical direction X. A fastening portion 61 made of a male member of a mechanical hook-and-loop fastener is attached to the fastening tape 6. Further, a landing region 7 made of a female member of a mechanical hook-and-loop fastener is formed on the non-skin facing surface of the ventral region 1F of the diaper 1. In the landing region 7, a female member of a mechanical hook-and-loop fastener is attached to the non-skin facing surface of the back surface sheet 3 forming the non-skin facing surface of the ventral region 1F by a known joining means such as an adhesive or a heat seal. It is formed by joining and fixing, and the fastening portion 61 of the fastening tape 6 can be detachably fastened.

As the surface sheet 2, various materials conventionally used for absorbent articles such as disposable diapers can be used without particular limitation, and it is assumed that the surface sheet 2 is a liquid permeable sheet capable of permeating body fluids such as urine and feces. As the material, a woven fabric made of synthetic fibers or natural fibers, a non-woven fabric, a porous sheet, or the like can be used. As an example of the surface sheet 2, a non-woven fabric made of a natural fiber such as cotton or a non-woven fabric made of various synthetic fibers subjected to a hydrophilic treatment can be used. For example, a core-sheath structure type (including side-by-side type) composite fiber using polypropylene or polyester as a core component and polyethylene as a sheath component is made into a web by carding, and then a non-woven fabric (after that, a hole is opened at a predetermined position) by an air-through method. Treatment may be applied). Further, from the viewpoint of high liquid permeability (dry feeling), a perforated 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 ones are preferable. Used. Specifically, in order to obtain sufficient water vapor permeability, a film made of a synthetic resin such as polyethylene in which fine powder composed of a filler such as calcium carbonate is dispersed is stretched, and a porous film provided with fine pores is a back sheet. Can be suitably used as 3.
As the leak-proof cuff 5, a poorly permeable (including water-repellent and hydrophobic) sheet that can be used as the back sheet 3 can be used.

As shown in FIG. 1, the absorber 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 the twist regulating portion 43 described later. In the plan view as shown in FIG. 1, the absorbent core 40 constituting the absorber 4 has both side portions along the vertical direction X confined inward in the horizontal direction Y in the inseam region 1M. Preferably, the absorbent core 40 has an hourglass-like shape in which the central portion of the vertical direction X located in the inseam region 1M is constricted inward and has a vertically long shape long in the vertical 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 the absorbent material, various materials conventionally used for absorbent articles such as disposable diapers can be used without particular limitation. For example, cellulosic fibers such as wood pulp and synthetic fibers treated with a hydrophilic agent can be used. Such as hydrophilic fibers and water-absorbent polymers can be mentioned. As the structure of the absorbent core 40, a structure in which a hydrophilic fiber stack, a structure in which a water-absorbent polymer is supported on the stack, or a structure consisting of only a water-absorbent polymer can be exemplified.
As the core wrap sheet 41, the same one as conventionally used for this kind of absorbent article can be used, and examples thereof include tissue paper and the like.

In the diaper 1, as shown in FIGS. 1 and 2, the absorbent core 40 has a plurality of twist regulation portions 43, 43 ... Extending in the vertical direction X in the inseam region 1M. In the diaper 1, each twist regulating portion 43 is formed parallel to the vertical direction X not only in the inseam region 1M of the absorbent core 40 but also from the dorsal region 1R to the ventral region 1F. As shown in FIG. 1, the diaper 1 has Article 4 twist control sections 43, 43, 43, 43, but the number of twist control sections is not limited to this.

The twist control unit 43 is a starting point of deformation of the absorbent core 40 or a portion that is preferentially compressed when an external force is applied to the diaper 1 while the diaper 1 is worn. For this purpose, each twist regulating portion 43 is formed of, for example, a groove extending in the vertical direction X, a squeezing groove, a non-folding groove portion, or the like. The groove is an elongated recess having a bottom portion and having a predetermined width, and the basis weight of the bottom portion of the recess is lower than the basis weight of the peripheral portion excluding the recess. The squeeze groove is an elongated recess having a bottom and 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 fiber portion is a gap portion in which the bottom portion is removed from the groove and the absorbent material constituting the absorbent core 40 does not exist. In the diaper 1, as shown in FIGS. 2 and 3, each twist regulating portion 43 is a groove formed on the non-skin facing surface side of the absorbent core 40, and the skin facing surface side of the absorbent core 40 is flat. It has become. The twist regulating portion 43, which is the groove, is formed in a concave shape recessed from the non-skin facing surface side to the skin facing surface side of the absorbent core 40.

In the diaper 1, it is preferable that the twist regulating unit 43 has the same width, that is, the length along the horizontal direction Y, at any position in the vertical direction X.
In diaper 1, the twist control parts 43, 43, 43, 43 of Article 4 may have the same width or different widths. In particular, when the width of each twist regulating portion 43 is the same, the width of the absorber is uniformly compressed when an external force is applied, the twist is controlled, and unintended twist is less likely to occur, which is preferable. From the viewpoint of making this advantage more remarkable, 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 preferably, it is more preferably 0.5 mm or more and 20 mm or less, and further preferably 1 mm or more and 10 mm or less.

In the diaper 1, the twist regulation portions 43, 43, 43, 43 of Article 4 may have the same length or different lengths along the vertical direction X. In particular, it is preferable that the lengths of the twist regulating portions 43 are the same, because the fit when worn is better. From the viewpoint of making this advantage more remarkable, 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, preferably 400 mm or less. More preferably, it is more preferably 30 mm or more and 500 mm or less, and further preferably 100 mm or more and 400 mm or less.

The basis weight of the absorbent core 40 excluding the twist regulating portion 43 is preferably ^{300 g / m 2} or more and 900 g / m ² or less from the viewpoint of suppressing discomfort when wearing the diaper 1 and improving the fit. It is more preferably 350 g / m ² or more and 800 g / m ² or less.
The basis weight of the twist control section 43, in other words, the basis weight of the absorbent core 40 located in the twist control section 43 is lower than the basis weight of the absorbent core 40 excluding the twist control section 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. The fact that the basis weight of the absorbent core 40 is 0 g / m ² means that the twist regulating section 43 is a non-stacked fiber section in which no absorbent material is present.

The absorbent core 40 used in the diaper 1 uses, for example, a laminated fiber drum having recesses formed on the peripheral surface, and an absorbent material composed of hydrophilic fibers such as pulp fibers and particles of a water-absorbing polymer is deposited in the recesses. When the fiber stack is manufactured, the portion of the breathable member constituting the bottom of the recess, which should be the twist regulation portion 43, which is a low basis weight region, can be manufactured by making the portion having low breathability. That is, in the above-mentioned breathable member, a non-ventilated non-stacked fiber portion may be set at the position of the planned formation portion of the twist regulating portion 43.

In the diaper 1, as shown in FIGS. 1 to 3, the absorbent body 10 is extended against the contraction force of the elastic member 11 and the pair of leakage-proof cuffs 5 and 5 are provided in the lateral direction Y inward to the surface sheet 2. Skin care including a skin care arrangement portion 8 in which a hydrophilic skin care agent is arranged in a region sandwiched between a pair of fallen leak-proof cuffs 5 and 5 on the surface sheet 2 in a state of being laid down on the skin facing surface. It has an agent placement region of 8T. Here, "a state in which the pair of leakage-proof cuffs 5 and 5 are stretched against the contraction force of the elastic member 11 and laid down on the skin-facing surface of the surface sheet 2 inward in the lateral direction Y" is defined as each part. It means a state in which the elastic members 11, 12 and the like are stretched so that the entire diaper 1 is expanded to the design dimensions (the same as the dimensions when the diapers 1 are expanded in a plane with the influence of the elastic members completely excluded). In the diaper 1, the skin care agent placement region 8T is arranged on the skin-facing surface of the surface sheet 2, and in the lateral direction Y, in the region sandwiched between the pair of leak-proof cuffs 5, 5, specifically, a pair. The elastic members 11 of the leakage-proof cuffs 5 and 5 are arranged in the region sandwiched between the arranged free ends, and in the vertical direction X, they may be arranged over at least the inseam region 1M. In the diaper 1, it is arranged from the ventral region 1F to the dorsal region 1R. As described above, the skin care agent arranging region 8T is not formed at a position overlapping each of the leak-proof cuffs 5 on the surface sheet 2, and the skin care agent is less likely to adhere to the leak-proof cuff 5.

In the skin care agent placement area 8T, the skin care agent may be distributed over the entire surface of the skin care agent placement area 8T, or the skin care agent may not be distributed over the entire surface of the skin care agent placement area 8T. In the diaper 1, as shown in FIG. 1, the skin care agent is not distributed over the entire surface of the skin care agent placement area 8T, and the twist control portion 43 of the absorbent core 40 is provided in the skin care agent placement area 8T. The skin care agent is arranged at a position corresponding to the position to be removed, and the arrangement portion 8 of the skin care agent on which the skin care agent is arranged is formed. As shown in FIGS. 2 and 3, in a cross-sectional view, the skin care agent arranging portion 8 is not arranged at a position overlapping the twist regulating portion 43, and the skin care agent arranging portions 8 and 8 adjacent to each other in the lateral direction Y. There is no skin care agent between them. In the diaper 1, the skin care agent arrangement portion 8 includes an inseam arrangement portion 8M arranged over at least the inseam region 1M, a ventral arrangement portion 8F arranged only over the ventral region 1F, and a dorsal region 1R. It has a dorsal arrangement portion 8R arranged only over.

In the diaper 1, as shown in FIG. 1, the inseam arrangement portion 8M is formed at three positions corresponding to the twist regulation portions 43 and 43 adjacent to each other in the lateral direction Y of the absorbent core 40. Is formed in. The three inseam-arranged portions 8M, 8M, and 8M are continuously formed in a band shape from the ventral region 1F to the dorsal region 1R via the inseam region 1M. The widths of the three inseam arrangement portions 8M, 8M, and 8M may be the same or different, but in the diaper 1, the width W1 (see FIG. 2) of each inseam arrangement portion 8M is formed to be the same. ing. The width W1 of each inseam arrangement portion 8M is preferably 1 mm or more, more preferably 3 mm or more, further preferably 20 mm or less, further preferably 10 mm or less, and 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 diaper 1, the three inseam arrangement portions 8M, 8M, 8M may have the same length or different lengths along the vertical direction X, but in diaper 1, as shown in FIG. 1, each inseam The length of the arrangement portion 8M is the same. The length of each inseam arrangement portion 8M is preferably 100 mm or more, more preferably 150 mm or more, more preferably 600 mm or less, further preferably 450 mm or less, and specifically. , 100 mm or more and 600 mm or less, and more preferably 150 mm or more and 450 mm or less.
Here, when the inseam arrangement portion 8M is intermittently arranged in the vertical direction X, the length of the inseam arrangement portion 8M in the vertical direction X includes the portion arranged at the most vertical X end portion as a whole. The length of.

In the diaper 1, as shown in FIG. 1, the ventral arrangement portion 8F is continuously arranged in a band shape only on the ventral region 1F on both sides of the skin care agent arrangement region 8T along the vertical direction X, and the diaper 1 Is formed in pairs. Each ventral arrangement portion 8F is laterally Y outward from the twist regulating portion 43 located most laterally Y outward in the lateral direction Y, and the elastic member 11 of the leakage-proof cuff 5 is arranged freely. It is arranged in the lateral direction Y inward from the end.

In the diaper 1, as shown in FIG. 1, the dorsal arrangement portion 8R is continuously arranged in a band shape only on the dorsal region 1R on both sides of the skin care agent arrangement region 8T along the vertical direction X. Is formed in pairs. Each dorsal arrangement portion 8R is laterally Y outward from the twist regulating portion 43 located most laterally Y outward in the lateral direction Y, and the elastic member 11 of the leakage-proof cuff 5 is arranged freely. It is arranged in the lateral direction Y inward from the end.

In diaper 1, each ventral arrangement portion 8F and each dorsal arrangement portion 8R may have the same width or different widths, but in diaper 1, each ventral arrangement portion 8F and each dorsal arrangement portion 8F may be different. The width W2 (see FIG. 3) of the portion 8R is formed to be the same. The width W2 of each ventral arrangement portion 8F and each dorsal arrangement portion 8R is preferably 1 mm or more, more preferably 3 mm or more, and preferably 20 mm or less, preferably 10 mm or less. More preferably, it is more preferably 1 mm or more and 20 mm or less, and further preferably 3 mm or more and 10 mm or less.

In the diaper 1, each ventral arrangement portion 8F and each dorsal arrangement portion 8R may have the same length or different lengths along the vertical direction X, but in the diaper 1, as shown in FIG. , Each ventral arrangement portion 8F and each dorsal arrangement portion 8R have the same length. The length of each ventral arrangement portion 8F and each dorsal arrangement portion 8R is shorter than the length of the inseam arrangement portion 8M, shorter than the length of the ventral region 1F or the dorsal region 1R, and is preferably 20 mm or more. , 30 mm or more, more preferably 100 mm or less, further preferably 80 mm or less, specifically, 20 mm or more and 100 mm or less, and 30 mm or more and 80 mm or less. Is even more preferable.

In the diaper 1, the total length of the lateral Y of the skin care agent placement portion 8 in the inseam region 1M is the lateral Y of the skin care agent placement portion 8 in either the ventral region 1F or the dorsal region 1R. It is smaller than the total length. As described above, in the diaper 1, as shown in FIG. 1, the skin care agent placement portion 8 and the three inseam placement portions 8M, 8M, 8M in the diaper 1 pass from the ventral region 1F to the inseam region 1M. The pair of ventral arrangement portions 8F and 8F are formed only over the ventral region 1F, and the pair of dorsal arrangement portions 8R and 8R are formed over the dorsal region 1R. It is formed only over. Therefore, in the diaper 1, the total length of the lateral Y of the arrangement portion 8 in the inseam region 1M is three times the length (width) W1 of the lateral Y of the inseam arrangement portion 8M, which is the belly. The total length of the lateral direction Y of the arrangement portion 8 in the side region 1F is three times the length (width) W1 of the lateral direction Y of the inseam arrangement portion 8M and the lateral direction Y of the ventral arrangement portion 8F. The total length (width) is twice the length of W2, and the total length of the arrangement portion 8 in the dorsal region 1R in the lateral direction Y is the length (width) of the inseam arrangement portion 8M in the lateral direction Y. It is the sum of the length three times as long as W1 and the length (width) of the dorsal side arrangement portion 8R in the lateral direction twice as long as W2. Therefore, in the diaper 1, the total length of the lateral Y of the skin care agent placement portion 8 in the inseam region 1M is the length of the lateral Y of the skin care agent placement portion 8 in the ventral region 1F and the dorsal region 1R, respectively. It is smaller than the sum of the diapers.

In the diaper 1, in the inseam region 1M, the amount of the skin care agent arranged is the agent arrangement center between the agent arrangement side portions 8Ts and 8Ts rather than the agent arrangement side portions 8Ts and 8Ts along the vertical direction X of the skin care agent arrangement area 8T. Part 8Tc is more. Here, the division of the agent arrangement side portions 8Ts, 8Ts and the agent arrangement central portion 8Tc is such that when the inseam region 1M has three inseam arrangement portions 8M, 8M, 8M as in diaper 1. One inseam-arranged portion 8M at the center of the lateral Y is the agent-arranged central portion 8Tc, and the remaining inseam-arranged portions 8M and 8M other than the one inseam-arranged portion 8M are the agent-arranged bilateral portions 8Ts. Further, when the skin care agent is distributed over the entire surface of the skin care agent arrangement region 8T, or has an inseam arrangement portion 8M other than three, the division of the agent arrangement side portions 8Ts, 8Ts and the agent arrangement central portion 8Tc. If it is difficult to remove, the skin care agent placement area 8T is divided into three equal parts in the lateral direction Y, and the central part of the skin care agent placement area 8T divided into three equal parts is the agent placement central part 8Tc, and both of the agent placement central parts 8Tc. The remaining portion located on the side is 8Ts and 8Ts on both sides of the agent arrangement. Further, the "arrangement amount of the skin care agent" means the amount of the skin care agent arranged by applying the skin care agent to the surface 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, a preferred skin care agent includes a diamide derivative represented by the following formula (I). The diamide derivative represented by the following formula (I) is the diamide derivative of the invention described in International Publication No. WO00 / 61097, and has a medicinal effect of improving the water retention capacity and barrier function of the stratum corneum. ing. When the diamide derivative is transferred to the wearer's skin while wearing the diaper 1, it functions as an oil-based 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.

Further, as another hydrophilic skin care agent that can be used to form the arrangement portion 8 of the skin care agent, for example, an oil-based skin care agent used as an emollient agent in the field of cosmetics can be used. Specific examples of the other hydrophilic skin care agents include liquid paraffin, silicone oil, animal and vegetable oils (olive oil, hooba oil, benivana oil, squalane and squalane, etc.), monoglyceride, diglyceride, triglyceride, and aliphatic ethers (myristyl-1). , 3-Dimethylbutyl ether, palmitol-1,3-dimethylbutyl ether, stearyl-1,3-dimethylbutyl ether, palmityl-1,3-methylpropyl ether, stearyl-1,3-methylpropyl ether, etc.), Isostearyl-cholesterol Esters, paraffin wax, C _12- C ₂₂ fatty acids, C _12- C ₄₄ fatty acid ethers, C _12- C ₂₂ fatty alcohols, vaseline, fatty acid sorbitan esters (any of monoesters, diesters, and triesters), poly. Oxyethylene fatty acid sorbitan ester (any of monoester, diester, and triester), metal stone test (magnesium stearate, etc.), sucrose fatty acid ester, cyclodextrin fatty acid ester, silicone, silicone resin, JP-A-2004. Examples thereof include the emollient agent used in the invention described in Japanese Patent Application Laid-Open No. -298643 or Japanese Patent Application Laid-Open No. 2008-522772, and a lotion composition containing an emollient agent and an immobilizing agent.
The various skin care agents may be used alone or in combination of two or more.
From the viewpoint of not reducing the permeability of the body fluid excreted on the surface sheet 2 _{, a mixture of C 12 to} C ₂₂ fatty alcohol (preferably stearyl alcohol) and the diamide derivative of the above formula (I) can be preferably used. .. The mixing ratio of stearyl alcohol to the diamide derivative of the above formula (I) (stearyl alcohol / diamide derivative) determines the transferability of the skin care agent to the skin, the skin care effect, the feel when used, and the body fluid permeability of the surface sheet 2. From the viewpoint, it is preferably 90/10 to 50/50 (mass%). It is preferable that these mixtures are heated to increase their fluidity and then coated on the surface sheet 2 to adhere them. After adhering to the surface sheet 2, the fluidity is lowered by leaving it at room temperature so that it can be easily held by the surface sheet 2.

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.

The amount of the skin care agent arranged in the skin care agent arrangement area 8T, in other words, the amount of the skin care agent actually applied is that in the inseam area 1M, the agent arrangement central portion 8Tc is larger than the agent arrangement side portion 8Ts. The ratio of the amount of the skin care agent arranged in the central portion 8Tc of the agent to the amount of the skin care agent arranged in the central portion 8Ts of the agent (the amount of the arrangement of the central portion 8Tc of the agent / the amount of the arrangement of the agent placement side 8Ts) From the viewpoint of the effect of the skin care agent on the skin and the permeability of the body fluid to the surface sheet, it is preferably 1.5 times or more, more preferably 2 times or more, and 100 times or less. Is more preferable, and 10 times or less is more preferable, and specifically, 1.5 times or more and 100 times or less is preferable, and 2 times or more and 10 times or less is further preferable.
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 Is preferable, and it is more preferably 0.10 g / m ² or more and 1.00 g / m ^{2 or less.}
From the same viewpoint, the amount of the skin care agent arranged at the central portion of the agent arrangement ^{is preferably 0.10 g / m 2} or more, more preferably 0.30 g / m ² or more, and 5.00 g. It is preferably / m ² or less, more preferably 3.00 g / m ² or less, and specifically, 0.10 g / m ² or more and 5.00 g / m ² or less, and 0. and more preferably it is .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 Is preferable, and it is more preferably 0.10 g / m ² or more and 1.00 g / m ^{2 or less.}

The contact angle between the skin care agent arranging portion 8 arranged on the skin-facing surface of the surface sheet 2 and the ion-exchanged water is less than 90 degrees, 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 portion 8 of the skin care agent is hydrophilic, and the smaller the contact angle, the higher the hydrophilicity (lower hydrophobicity). means.

<Measurement method of contact angle>
The fibers in the arrangement portion 8 of the skin care agent are taken out from the surface sheet 2 to be measured, and the contact angle of water with respect to the fibers 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 the inkjet type water droplet discharge unit (Pulse injector CTC-25 manufactured by Cluster Technology Co., Ltd., having a discharge unit hole diameter of 25 μm) is set to 20 picolitres, and the water droplet is dropped directly above the fiber. The state of dripping is recorded on a high-speed recording device connected to a horizontally installed camera. From the viewpoint of image analysis later, the recording device is preferably a personal computer incorporating a high-speed capture device. In this measurement, an image is recorded every 17 msec. In the recorded video, the first image of water droplets on the fibers is the attached software FAMAS (software version is 2.6.2, analysis method is droplet method, analysis method is θ / 2, image processing algorithm. Is non-reflective, image processing image mode is frame, threshold level is 200, curvature correction is not performed), the angle between the surface of the water droplet that comes into contact with the air and the fiber is calculated, and the contact is made. Make 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 maintained horizontally. Measure the contact angles at two different points for each fiber. The contact angle of N = 5 fibers is measured to one digit after the decimal point, and the average value of the measured values at 10 points in total (rounded to the second digit after the decimal point) is defined as the contact angle of the fiber with water. The measurement environment is room temperature 22 ± 2 ° C. and humidity 65 ± 2% RH.

When 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 an adhesive, fusion, or the like, the fixing thereof is performed. The portion is removed by applying a solvent, blowing hot air with a dryer, or blowing a cold spray (for example, a commercially available product manufactured by Nichiban Co., Ltd.), and then removes the portion.

As described above, in the diaper 1, as shown in FIGS. 1 to 3, the absorbent body 10 is extended against the contraction force of the elastic member 11 to extend the pair of leakage-proof cuffs 5 and 5 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 on 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 of 8T. Here, since the hydrophilic skin care agent is arranged, the body fluid permeability of the surface sheet 2 can be maintained. Further, since the skin care agent placement area 8T is formed in the area sandwiched between the pair of leakage-proof cuffs 5 and 5, the skin care agent does not easily adhere to the leakage-proof cuff 5 while wearing the diaper 1, and the leakage-proof cuff. The poor permeability of 5 can be maintained, and body fluids such as watery stools can be prevented from seeping out and leaking. In particular, in the inseam region 1M, the amount of the skin care agent arranged in the skin care agent arrangement region 8T is larger in the agent arrangement central portion 8Tc than in the agent arrangement side portion 8Ts. The skin care agent arranged in the above is less likely to adhere to the leak-proof cuff 5 during wearing, and the leakage of body fluid can be prevented.

Further, as shown in FIGS. 1 and 2, the inseam region 1M of the diaper 1 has a plurality of twist regulation portions 43, 43 ... In which the absorbent core 40 extends in the vertical direction X, and the diaper is provided. When an external force is applied to the diaper 1 in the width direction while wearing 1, the diaper is compressed in the width direction. At this time, the twist regulating portion 43 is preferentially compressed and deformed in the width direction, so that the diaper is twisted. It becomes possible to control the position where it occurs, and it becomes difficult for unintended twisting to occur. Therefore, it is more difficult for the skin care agent to adhere to the leak-proof cuff 5 while wearing the diaper 1. In particular, in the skin care agent placement area 8T of the diaper 1, the skin care agent is placed at a position corresponding to the position of the absorbent core 40 excluding the twist regulating portion 43, so that the skin care is placed on the skin facing surface of the absorbent core 40. The agent placement area 8T can be fastened, and the skin care agent does not easily adhere to the leak-proof cuff 5.

Further, as shown in FIGS. 1 to 3, in the diaper 1, the total length of the lateral Y of the arrangement portion 8 of the skin care agent in the inseam region 1M is the skin care agent in the ventral region 1F and the dorsal region 1R, respectively. It is smaller than the total length of the lateral Y of the arrangement portion 8 of. Therefore, since the arrangement portion 8 of the skin care agent in the inseam region 1M is relatively small, the skin care agent is unlikely to adhere to the leak-proof cuff 5 in the inseam region 1M, which easily leaks while wearing the diaper 1. In particular, in the inseam region 1M, since both sides of the absorbent core 40 constituting the absorber 4 are constricted inward in the lateral direction Y along the vertical direction X, an external force is applied to the diaper 1 while the diaper 1 is worn. Even if the above is added, the absorber 4 is less likely to be twisted, and the skin care agent is less likely to adhere to the leak-proof cuff 5.

Further, as shown in FIGS. 2 and 3, in the diaper 1, each twist regulating portion 43 arranged on the absorbent core 40 is a groove formed on the non-skin facing surface side of the absorbent core 40 and absorbs. The skin-facing surface side of the sex core 40 is flat. Therefore, when an external force is applied to the diaper 1 while wearing the diaper 1, in addition to the effect described in the paragraph [0048], the absorber 4 moves from the skin-facing surface side to the non-skin-facing surface side of the wearer. The skin care agent is less likely to adhere to the leak-proof cuff 5.

Although the present invention has been described above based on the embodiment, the present invention can be appropriately modified without being limited to the embodiment.

For example, in the diaper 1, as shown in FIGS. 1 and 3, the absorbent core 40 has a plurality of twist regulation portions 43 extending in the vertical direction X, but does not have the twist regulation portion 43. You may. Further, in the diaper 1, the twist regulating 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. ..

Further, in the diaper 1, as shown in FIG. 1, the skin care agent arrangement portion 8 is arranged only over the inseam arrangement portion 8M arranged over at least the inseam region 1M and the ventral side arranged only over the ventral region 1F. It has an arrangement portion 8F and a dorsal arrangement portion 8R arranged only over the dorsal region 1R, but if at least the inseam arrangement portion 8M is provided in the inseam region 1M, the ventral arrangement portion 8F And dorsal arrangement portion 8R may not be provided.

Further, in the diaper 1, as shown in FIG. 1, three inseam arrangement portions 8M, 8M, 8M are continuously formed from the ventral region 1F to the dorsal region 1R via the inseam 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 inseam arrangement portion 8M, the ventral arrangement portion 8F and The dorsal side arrangement portion 8R may be arranged intermittently in a dot shape in the vertical direction X and may be arranged discontinuously.

In addition, the absorbent article of the present invention is not limited to the deployable disposable diaper, but includes a wide range of articles used for absorbing 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 articles are further disclosed with respect to the above-described embodiments of the present invention.
<1>
It is provided with an absorbent body having a liquid-retaining absorber and a liquid-permeable surface sheet on the skin-facing surface side of the absorber, and extends in the vertical direction extending from the ventral side of the wearer to the dorsal side via the crotch portion. An absorbent article having a lateral direction orthogonal to this, an inseam region arranged in the crotch portion, and a ventral region and a dorsal region extending in front of and behind the inseam region, the absorbent body thereof. It has a pair of leak-proof cuffs with elastic members in the vertically elongated state on both sides along the vertical direction, and the leak-proof cuffs are formed so as to stand up in the inseam region in the worn state. The absorbent body is stretched against the contraction force of the elastic member, and the pair of leak-proof cuffs are laid down laterally inward on the skin-facing surface of the surface sheet, and the surface sheet is laid down. Within the region sandwiched between the pair of leak-proof cuffs, there is a skin care agent placement region including a skin care placement portion in which a hydrophilic skin care agent is arranged, and in the inseam region, the placement amount of the skin care agent is the above. An absorbent article in which there is more agent placement center between both sides of the agent placement than on each side of the skin care agent placement area along the longitudinal direction.

<2>
The absorbent core has an absorbent core containing an absorbent material, and the absorbent core has a plurality of twist regulation portions extending in the vertical direction in the inseam region, according to the above <1>. Absorbent article.
<3>
The absorbent article according to <2>, wherein the skin care agent is arranged at a position corresponding to a position of the absorbent core excluding the twist regulating portion in the skin care agent arrangement region.
<4>
The absorbent article according to <2> or <3>, wherein the twist regulating portion is formed in a concave shape recessed from the non-skin facing surface side to the skin facing surface side of the absorbent core.
<5>
The absorbent article according to any one of <2> to <4>, wherein the twist control section has the same width.
<6>
The absorbent article according to any one of <2> to <5>, wherein the width of the twist regulating portion is 0.5 mm or more, preferably 1 mm or more, and 20 mm or less, preferably 10 mm or less. ..
<7>
The absorbent article according to any one of <2> to <6>, wherein the twist regulation portion has the same length in the vertical direction.
<8>
The absorbent article according to any one of <2> to <7>, wherein the length of the twist regulating portion is 30 mm or more, preferably 100 mm or more, and 500 mm or less, preferably 400 mm or less.
<9>
The basis weight of the absorbent core excluding the twist regulation 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. The absorbent article according to any one.
<10>
The basis weight of the absorbent core portion located in the twist regulation portion is lower than the basis weight of the absorbent core excluding the twist regulation portion, and the basis weight of the absorbent core portion located in the twist regulation 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 lateral length of the skin care agent placement portion in the inseam region is either the ventral region or the dorsal region. The absorbent article according to any one of <1> to <10>, which is smaller than the total length of the arranged portion of the skin care agent on one side in the lateral direction.
<12>
The absorber has an absorbent core containing an absorbent material, and the absorbent core has both sides in the inseam region inwardly constricted in the inseam direction, according to the above <1> to <11>. The absorbent article according to any one.
<13>
The absorbent article according to any one of <1> to <12>, wherein the absorber has an absorbent core containing an absorbent material, and the absorbent core is flat on the skin-facing surface side.
<14>
The skin care arrangement portion has at least an inseam arrangement portion arranged over the inseam region, and the inseam arrangement portion continuously extends from the ventral region to the dorsal region via the inseam 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 the width W1 of the inseam arrangement portion is 1 mm or more, preferably 3 mm or more, and 20 mm or less, preferably 10 mm or less.
<16>
The absorbent article according to <14> or <15>, wherein the length of the inseam arrangement portion is 100 mm or more, preferably 150 mm or more, and 600 mm or less, preferably 450 mm or less.
<17>
The skin care arrangement portion has a ventral arrangement portion arranged only over the ventral region, and the ventral arrangement portion is in the ventral region on both sides along the longitudinal direction of the skin care agent arrangement region. The absorbent article according to any one of <1> to <16>, which is continuously arranged only in a strip shape.
<18>
The absorbent body has an absorbent core containing an absorbent material, and the absorbent core has a plurality of twist regulation portions extending in the vertical direction in the inseam region, and the ventral arrangement portion has a plurality of twist regulation portions. In the lateral direction, it is arranged laterally outward from the twist regulating portion located most laterally outward and laterally inward from the free end portion where the elastic member of the leakage-proof cuff is arranged. The absorbent article according to <17>.
<19>
The skin care arrangement portion has a dorsal arrangement portion arranged only over the dorsal region, and the dorsal arrangement portion is only in the dorsal region on both sides along the longitudinal direction of the skin care agent arrangement region. The absorbent article according to any one of <1> to <18>, which is continuously arranged in a strip shape.

<20>
The skin care arrangement portion includes an inseam arrangement portion arranged over at least the inseam region, a ventral arrangement portion arranged only over the ventral region, and a dorsal arrangement arranged only over the dorsal region. The absorbent article according to any one of <1> to <19>, which has a side-arranged portion and has the same width W2 of the ventral-arranged portion and the dorsal-arranged portion.
<21>
The absorbent article according to <20>, wherein the width W2 of the ventral arrangement portion and the dorsal arrangement portion 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 arrangement portion and the dorsal arrangement portion have the same length along the vertical direction.
<23>
The length of the ventral arrangement portion and the dorsal arrangement portion is shorter than the length of the inseam arrangement portion, shorter than the length of the ventral region or the dorsal region, and the ventral arrangement portion and the dorsal side. The absorbent article according to any one of <20> to <22>, wherein the length of the arranged portion is 20 mm or more, preferably 30 mm or more, and 100 mm or less, preferably 80 mm or less.
<24>
The total lateral length of the skin care placement portion in the inseam region is smaller than the total lateral length of the skin care placement portion 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 portion and an agent arrangement central portion, and the ratio of the amount of the skin care agent arranged in the agent arrangement central portion to the amount of the skin care agent arrangement on the agent arrangement side portion ((agent arrangement center). The arrangement amount of the portion / the arrangement amount of the agent placement side portion) × 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 ^2. The absorbent article according to <26>, which is 2 or less.
<28>
The amount of the skin care agent arranged in the central portion 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. ^2. The absorbent article according to <26> or <27>, which is 2 or less.
<29>
The skin care arrangement portion has a ventral arrangement portion arranged only over the ventral region and a dorsal arrangement portion arranged only over the dorsal region, and the ventral arrangement portion or the ventral arrangement portion 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 ^2. The absorbent article according to any one of <1> to <28>, which is 2 or less.
<30>
The leak-proof cuffs are arranged on each side portion of the absorbent body on the skin contact surface side of the surface sheet and over the entire vertical direction of the side portion. The absorbent article according to any one of <29>.
<31>
A thread-like or band-shaped elastic member is formed between the front surface sheet and the back surface sheet at the waist portion of each of the ventral region and the dorsal region, that is, the end portion in the vertical direction, which is a lateral aspect of the absorbent article. Waist gathers are formed on the waist portion of the waist portion when the absorbent article is worn, which is fixed in a laterally extended state over the entire length. The absorbent article according to any one of.
<32>
A plurality of thread-like or band-shaped elastic members are fixed in a laterally extended state between the front surface sheet and the back surface sheet in the waist circumference portion corresponding to the waist circumference of the wearer in the back side region. The absorbent article according to any one of <1> to <31>, wherein gathers around the waist are formed by shrinkage of the elastic member around the waist when the absorbent article is worn.

1 Deployable disposable diaper (absorbent article)
10 Absorbent body 2 Front sheet 3 Back sheet 4 Absorber 40 Absorbent core 41 Core wrap sheet 43 Twist control part 5 Leakage-proof cuff 6 Fastening tape 61 Fastening part 7 Fastening area 8 Skin care agent placement part 8T Skin care agent Placement area 8M Inseam placement part 8F Ventral placement part 8R Dorsal placement part 1F Ventral area 1M Inseam area 1R Dorsal area X Vertical direction Y Lateral direction

Claims (4)

It is provided with an absorbent body having a liquid-retaining absorber and a liquid-permeable surface sheet on the skin-facing surface side of the absorber, and extends in the vertical direction extending from the ventral side of the wearer to the dorsal side via the crotch portion. An absorbent article having a lateral direction orthogonal to the inseam region, an inseam region arranged in the crotch portion, and a ventral region and a dorsal region extending in front of and behind the inseam region.
The absorbent body has a pair of leak-proof cuffs on both sides along the vertical direction, in which elastic members in a vertically extended state are arranged.
The leak-proof cuff is formed so as to stand up in the inseam region when worn.
The absorbent body is stretched against the contraction force of the elastic member, and the pair of leak-proof cuffs are laterally inwardly laid down on the skin-facing surface of the surface sheet, and the surface sheet is laid down. Within the region sandwiched between the pair of leak-proof cuffs, there is a skin care agent placement region including a skin care placement portion in which a hydrophilic skin care agent is arranged.
In the crotch region, the arrangement of skin care agent, the skin care agent it is rather multi dosage placement central portion between the agent disposed sides than the respective longitudinally along agents disposed opposite sides of the arrangement region,
The absorber has an absorbent core containing an absorbent material.
The absorbent core has a plurality of twist regulation portions extending in the vertical direction in the inseam region.
An absorbent article in which the skin care agent is arranged at a position corresponding to a position of the absorbent core excluding the twist regulation portion in the skin care agent arrangement region. The skin care agent placement region is arranged from the ventral region to the dorsal region.
Claims that the total lateral length of the skin care agent placement portion in the inseam region is less than the total lateral length of the skin care agent placement portion in either the ventral region or the dorsal region. Item 2. The absorbent article according to Item 1. The absorber has an absorbent core containing an absorbent material.
The absorbent article according to claim 1 or 2 , wherein the absorbent core is inwardly constricted on both sides along the vertical direction in the inseam region. The absorber has an absorbent core containing an absorbent material.
The absorbent article according to any one of claims 1 to 3 , wherein the absorbent core is flat on the side facing the skin.

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