JP4471624B2 - Absorbent articles - Google Patents

Description

  The present invention relates to an absorbent article containing a skin care agent.

A diaper is worn for a relatively long time and excreted several times during that time, so the internal humidity tends to be very high due to sweat and excrement. In particular, these gathers are formed in diapers with waist gathers to suppress absorption leakage from around the waist and diapers with leg gathers to suppress absorption leakage from around the thigh. The internal humidity tends to be higher than diapers that are not.
For this reason, especially in the part which is easy to perspire, it will be in the state which is easy to produce a rash by stuffiness. The same can be said for absorbent articles other than diapers, such as sanitary napkins, incontinence pads, panty liners, and cage sheets.

Then, the absorbent article which provided the skin care effect and suppressed generation | occurrence | production of a rash has been proposed.
For example, Patent Documents 1 and 2 describe an absorbent product or absorbent article in which a lotion agent containing an emollient and an immobilizing agent capable of immobilizing the emollient is applied to a top sheet or leg cuff. Patent Documents 3 and 4 describe absorbent articles in which a drug having a predetermined medicinal effect is fixed or held at a predetermined site.
Japanese Patent No. 3217792 Japanese Patent No. 3217793 JP 2002-113039 A JP 2002-200112 A

  An object of the present invention is to provide a new absorbent article capable of suppressing skin irritation.

  The present invention will be described below. In order to facilitate understanding of the present invention, reference numerals in the accompanying drawings are appended in parentheses, but the present invention is not limited to the illustrated embodiment.

で表されるジアミド誘導体のみが塗布されていることを特徴とする吸収性物品（７０）を提供して、上記の目的を達成する。 In one aspect of the present invention, the surface that is applied to the skin of the wearer when worn is 200 to 5000 mPa · s at 36 ° C. and 50 to 200 mPa · s at 80 ° C. The following formula (I) as an agent

The above object is achieved by providing an absorbent article (70) characterized in that only the diamide derivative represented by the formula is applied.

  The diamide derivative represented by the above formula (I) is a diamide derivative of the invention described in International Publication No. WO00 / 61097, and has a medicinal effect of improving the water retention ability and barrier function of the stratum corneum. is doing.

If this diamide derivative is applied to a predetermined surface of the absorbent article, that is, a surface that is applied to the wearer's skin when worn, the diamide derivative moves to the wearer's skin as the absorbent article is worn. It functions as an oily skin care agent.
Therefore, the above-mentioned absorbent article can suppress skin irritation.

According to the present invention, a new diaper capable of suppressing skin irritation is provided.
Such an operation and gain of the present invention will be made clear from the best mode for carrying out the invention described below.

  Hereinafter, an embodiment of an absorbent article of the present invention will be specifically described with reference to the drawings.

  Fig. 1 (A) is a schematic view of an absorbent article according to an embodiment of the present invention held in a tensioned state and viewed from above, and Fig. 1 (B) is shown in Fig. 1 (A). It is the schematic of a cross section when the shown absorbent article is hold | maintained in a natural state and cut | disconnected in the location corresponded to the IB-IB line shown to FIG. 1 (A).

  Here, the “upper surface” referred to in this specification for the absorbent article means the upper surface of the absorbent article placed with the surface applied to the body surface of the wearer when worn. In addition, “holding the absorbent article in a tensioned state” means that the absorbent article is disposed in the width direction and so that the deformation caused by the contraction of the elastic body provided in the absorbent article substantially disappears. It means that tension is applied in the longitudinal direction to hold.

  The illustrated absorbent article 70 is an unfolded diaper (hereinafter referred to as “diaper 70”), and is along a longitudinal direction (hereinafter referred to as “longitudinal direction D1”) indicated by an arrow D1 in FIG. For convenience, it can be divided into three regions. One is a dorsal region R1 that is mainly applied from the buttocks of the wearer to the back, the other is a crotch region R2 that is mainly applied to the lower abdomen of the wearer, and the other is mainly worn. It is ventral region R3 applied to a person's abdomen.

  Leg openings 1a and 1b are formed on both sides of the width direction D2 of the crotch region R2 in order to improve fit to the wearer's thigh and improve wearability. The width of the crotch region R2 is narrower than the maximum width of the other two regions R1, R3. The width of the edge portion on the crotch region R2 side in the back side region R1 and the width of the edge portion on the crotch region R2 side in the abdominal region R3 are gradually narrowed toward the crotch region R2.

  A pair of tape-like members 3 each having a planar fastener male member 3a on one side are fixed to the left and right side edges in the width direction D2 in the back region R1. Moreover, in order to fix the tape-shaped member 3 at the time of wearing, the sheet | seat material for planar fasteners (not shown) which consists of a nonwoven fabric is adhering to the back surface (outer surface) of ventral | abdominal side area | region R3.

  As shown in FIG. 1 (B), the diaper 70 includes an inner sheet 10 that contacts the wearer's skin when worn, and an outer layer sheet 15 arranged on the back side (outer side) of the inner sheet 10 (see FIG. 1 (B)). ) And an absorbent body 20 for absorbing excrement, and the absorbent body 20 is disposed between the inner sheet 10 and the outer layer sheet 15.

  The inner sheet 10 includes a liquid-permeable surface sheet 11 formed of a nonwoven fabric or the like, and liquid-impermeable side sheets 13a and 13b formed of a nonwoven fabric or the like. Is covered in plan view. One side sheet 13a or 13b is joined to the left side edge and the right side edge in the width direction D2 of the surface sheet 11 one by one.

  The outer layer sheet 15 is a liquid-impermeable sheet formed using an organic polymer material such as polyethylene, polypropylene, and polyester, and prevents leakage of excrement.

  The absorbent body 20 includes, for example, an aggregate of hydrophilic fibers such as rayon and cellulose, an aggregate obtained by subjecting synthetic fibers such as polyethylene fibers and polypropylene fibers to a hydrophilic treatment, and the hydrophilic fibers and the hydrophilic treatment. An aggregate with the applied synthetic fiber, or an absorbent layer made of these aggregates holding a water-absorbing polymer, or the absorbent layer is a kind of paper, non-woven fabric, perforated film, etc. Or it is formed by wrapping with multiple species.

  The contour shape and size of the inner sheet 10 are substantially the same as the contour shape and size of the outer layer sheet 15, and the inner sheet 10 and the outer layer sheet 15 provide a plan view of the diaper 70 excluding each of the tape-like members 3. The contour shape and size are substantially determined.

  As shown in FIG. 1 (A), when viewed in the longitudinal direction D1, the regions outside the longitudinal end of the absorbent body 20 are waist flaps 30a and 30b arranged around the wearer's waist when worn. is there. Moreover, the outer periphery flap 35a, 35b distribute | arranged the area | region outside the width direction side edge of the absorber 20 in the area | region from the waist flaps 30a, 30b rather than leg opening part 1a, 1b at the time of wearer's waist circumference. It is. Accordingly, there are a waist flap 30a or 30b and a waistline flap 35a or 35b in each of the back region R1 and the ventral region R3. In FIG. 1A, smudging is applied to the waist flap 30a in the back region R1 and the waist flap 30b in the ventral region R3.

  A plurality of elastic elastic members 33a (hereinafter referred to as “waist elastic members 33a”) are arranged on the waist flap 30a so as to extend in the width direction D2. Similarly, a plurality of elastic elastic members 33b (hereinafter referred to as “waist elastic members 33b”) are arranged on the waist flap 30b so as to extend in the width direction D2.

  As these waist elastic members 33a and 33b, for example, rubber thread or flat rubber is used, and any of the waist elastic members 33a and 33b is fixed between the inner sheet 10 and the outer layer sheet 15 under a stretched state. ing. For this reason, when the diaper 70 is in a natural state or when the diaper 70 is worn, the waist elastic members 33a and 33b are relatively contracted to form waist gathers on the waist flaps 30a and 30b.

  In the present embodiment, a plurality of elastic elastic members 37a or 37b (hereinafter referred to as “trunk elastic members 37a and 37b”) are arranged on the waist flaps 35a and 35b, respectively. Further, the leg flap 45a located on the left side of the absorbent body 20 when viewed in the width direction D2 (left side in FIG. 1A) has a plurality of elastic stretches so as to extend in the longitudinal direction D1. A member 40a (hereinafter referred to as “leg elastic member 40a”) is arranged, and the leg flap 45b located on the right side of the absorbent body 20 (right side in FIG. 1A) extends in the longitudinal direction D1. In this manner, a plurality of elastic elastic members 40b (hereinafter referred to as “leg elastic members 40b”) are arranged. In FIG. 1A, the leg flaps 45a and 45b are smudged. However, the ranges of the illustrated regions 45a and 45b are not exact, but are approximate.

  As the waist elastic members 37a and 37b and the leg elastic members 40a and 40b, thread rubber or flat rubber is used similarly to the waist elastic members 33a and 33b, and any of the elastic members 37a, 37b, 40a, and 40b The inner sheet 10 and the outer layer sheet 15 are fixed under a stretched state. Therefore, when the diaper 70 is in a natural state or when the diaper 70 is worn, the waistline elastic members 37a and 37b are relatively contracted to form waistline gathers in the waistline flaps 35a and 35b, and the leg elastic members 40a and 40b contract relatively, and leg gathers are formed in the leg flaps 45a and 45b. Leg gathers are applied from around the wearer's neck to around the thigh when worn.

  The diaper 70 includes three-dimensional guards 60a and 60b, which are gathers arranged close to the absorber 20, in addition to the above-described gathers. These three-dimensional guards 60 a and 60 b are both provided along the longitudinal direction D <b> 1 of the diaper 70.

  The three-dimensional guards 60a and 60b shown in the figure have side sheets 13a or 13b (see FIG. 1B) bonded to a part of the surface sheet 11 as fixed ends, and free ends (ends far from the outer layer sheet 15). The elastic elastic member 63a or 63b extending in the longitudinal direction D1 is fixed in the stretched state inside the region to become so as to stand in the wearer direction. At the time of wearing, a free end part stands up to a wearer's skin side, and forms a three-dimensional gather part.

  The greatest feature of the diaper 70 of the present embodiment is that the diamide derivative represented by the formula (I) is the inner surface of each of the top sheet 11, the waist flaps 30a and 30b, the waistline flaps 35a and 35b, and the leg flaps 45a and 45b. (Surface applied to the skin of the wearer) It is applied to the whole or a part thereof.

  The diamide derivative moves to the wearer's skin with the wearing of the diaper 70, and (1) suppresses the skin irritation caused by the excrement by suppressing the excrement directly touching the wearer's skin. 2) Oil-based skin care agent that functions to reduce skin irritation and reduce skin irritation caused by diapers, and (3) to improve moisture retention and barrier function of the stratum corneum after percutaneous absorption. Work as. Therefore, the diaper 70 suppresses skin irritation.

As said diamide derivative, the viscosity in 36 degreeC is about 5000 mPa * s or less, especially 200-5000 mPa * s, especially 500-2000 mPa * s from a viewpoint of making the said diamide derivative transfer to a wearer's skin efficiently. It is preferable to use a material whose viscosity is adjusted so as to be used.
By using the thing of the said viscosity, the said oil-based skin care agent can be effectively transferred to a wearer's skin. When the viscosity is 5000 mPa · s or less, the transferability to the skin becomes extremely good, and it is not necessary to use a large amount of an oily skin care agent in order to express a desired rash suppression effect. Moreover, the influence on absorbency becomes small. In addition, when the viscosity is 200 mPa · s or more, it is possible to effectively prevent the diamide derivative from migrating to another site even when the storage period before wearing the absorbent article is long, so that it is desirable. A skin care effect can be obtained effectively.

The “viscosity of the diamide derivative” in the present invention was measured as follows.
<Measurement method of viscosity>
Measurement is performed using a tuning fork type vibration viscometer (typically, VIBRO NISCOMETERCJV5000 (manufactured by A & D Co., Ltd.) is used in this embodiment). The diamide derivative heated to about 100 ° C. in advance is slowly cooled to room temperature, and the viscosity at the desired temperature is measured.

  The diamide derivative used in the present invention preferably has a small viscosity temperature dependency. Specifically, it is preferable that the viscosity at 36 ° C. is in the above range and the viscosity at 80 ° C. is 50 to 200 mPa · s. If the temperature dependency of the viscosity is small, it is easy to apply the diamide derivative uniformly to the sheet, and even if a slight temperature change occurs, the diamide derivative is soaked stably in the absorber. Absorption inhibition due to penetration or diffusion is less likely to occur.

  Application of a diamide derivative to an absorbent article or its material is performed, for example, by putting the diamide derivative into a tank of a coating device (applicator) and heating it as necessary to increase its fluidity. This can be done by coating a predetermined part of the article or its material.

  Examples of the coating method 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.

  When a method of spraying with air such as a spray method is applied, the diamide derivative is sprayed on the surface of the object to be coated in the form of fine particles or mist. For this reason, the diamide derivative is macroscopically continuously provided on the application target, but microscopically, it is discontinuously distributed on the surface of the application target.

  As a result, it is easy to ensure the liquid permeability of the top sheet while exhibiting a skin care effect in a wide range, and to effectively utilize the absorption performance of the absorbent body. Therefore, application of a diamide derivative by a method of spraying with air is suitable for obtaining a desired absorbent article. Of course, when applying a method of spraying with air, the diamide derivative can be applied under a desired pattern such as a stripe shape or a lattice shape as described in the description of the application by the die coater method described later. Is possible.

  In the die coater method, compared to other methods, the diamide derivative is applied to the object to be coated in the form of a surface or a layer, so that the absorption performance of the absorber is reduced depending on the type, application amount, or application position of the diamide derivative. Sometimes. Therefore, when the diamide derivative is applied to the surface sheet that covers the absorber or the material sheet, the diamide derivative is applied in stripes in the longitudinal direction D1 or the width direction D2 (see FIG. 1A). It is preferable to devise ingenuity so that the coverage of the absorbent body by the diamide derivative can be suppressed when viewed in plan, such as coating in the form of a lattice or coating in a lattice form.

  The application amount (coating amount) of the diamide derivative is preferably selected in consideration of not only the influence on the absorption performance of the absorbent body but also the texture and skin care effect. For example, when a diamide derivative is continuously applied in the form of a film or layer, the contact area with the wearer's skin increases, so the amount of diamide derivative transferred to the skin increases and the skin is covered over a wide area. The skin care effect is enhanced, but on the other hand, the absorption performance of the absorbent body is likely to be lowered and a sticky feeling may be caused.

Considering the skin care effect, texture, etc., the application amount of the diamide derivative (meaning the application amount in the region where the diamide derivative is actually applied) is generally in the range of 0.05 to 20 g / m ² . Preferably, it is more preferably within the range of 0.1 to 10 g / m ² . In particular, when it is applied to the top sheet, it is more preferably in the range of 0.1 to 5 g / m ² . This coating amount can be determined from the difference in weight between the coating object before coating and after coating the diamide derivative.

  If necessary, two types of coating methods may be used in combination in one absorbent article. For example, a die coater method may be adopted at a contact portion with the buttocks where a higher skin care effect is required, and a spray method may be adopted near the urine portion where both absorption performance and skin care effect are required.

  When applying a diamide derivative also on an absorber, the water absorption rate (JIS L 1096 water absorption, water absorption rate, method A (drop method)) of the top sheet is set to 10 seconds by setting the application amount within the above range. It is possible to: Therefore, an absorbent article having practical absorption performance can be obtained.

  Only one type of diamide derivative may be used, or two or more types of diamide derivatives may be used. If necessary, it can be used in combination with other oily skin care agents. As the other oily skin care agents, those having effects such as protection and healing on the wearer's skin can be used without particular limitation, for example, those used as emollients in the field of cosmetics, etc. be able to.

Specific examples of the other oily 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, etc.), isostearyl-cholesterol ester, paraffin _wax, 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 triethanolamine Any of the tellurium), polyoxyethylene fatty acid sorbitan ester (monoester, diester, and triester may be used), metal stone (magnesium stearate, etc.), sucrose fatty acid ester, cyclodextrin fatty acid ester, Examples thereof include silicones, silicone resins, emollients used in the invention described in Patent Document 1 or Patent Document 2.

  Although the absorbent article of embodiment mentioned above is a development type diaper, the absorptive article of the present invention may be a pants type diaper. In both the unfolded and pant diapers, from the viewpoint of suppressing skin irritation, at least above the absorber, the diamide derivative represented by the formula (I) is locally or planarly viewed. It is preferable to apply so as to cover the entire absorbent body.

  In both unfolded and pants-type diapers, the diamide derivative represented by the formula (I) is, for example, only on the top sheet 11, only on the waist flaps 30a and 30b, only on the waistline flaps 35a and 35b, or It is possible to apply only to the leg flaps 45a and 45b, or to apply to any two or more of these. Regarding waist flaps, waistline flaps, and leg flaps, especially when forming gathers (waist gathers, waistline gathers, or leg gathers) in these regions, the diamide derivative represented by the above formula (I) is entirely used. It is preferable to apply it locally or locally.

  The absorbent article of the present invention is not limited to a diaper, and may be other absorbent articles such as a sanitary napkin, an incontinence pad, a panty liner, and a cage sheet.

  Each sheet used as the material of the absorbent article is often formed of a nonwoven fabric. When applying (fixing) the above-mentioned diamide derivative or water-soluble skin care agent to a nonwoven fabric, there are no particular restrictions on the fibers constituting the nonwoven fabric, such as semi-synthetic fibers such as rayon and tencel, polyethylene, polypropylene, polyethylene terephthalate, poly Natural fibers such as pulp and cotton may be used as well as single fibers made of thermoplastic resins such as acrylic acid and polyamide, or synthetic fibers such as core-sheath type or side-by-side type composite fibers.

  Only one type of fiber or two or more types of fibers constituting the nonwoven fabric may be used, and each fiber may be in the form of either a long fiber or a short fiber. Furthermore, the fineness of the fiber is not particularly limited and can be appropriately selected according to the intended use or grade of the diaper. However, the fineness of the fiber used for the inner sheet or the top sheet is generally 0. Often in the range of .5 to 8.9 dtex, in particular approximately 1 to 5.6 dtex.

  In addition, the surface sheet in a sanitary napkin may be formed with a liquid-permeable apertured film. Even when the topsheet is formed of an apertured film, the diamide derivative represented by the formula (I) is applied to the topsheet locally or so as to cover the topsheet. By using a water-soluble skin care agent in combination, it is possible to obtain the same technical effect as each diaper of the embodiment described above.

  Regardless of the type of material to be applied, by using the diamide derivative represented by the formula (I) together with silicone, it becomes easy to reduce friction between the absorbent article and the skin of the wearer. This makes it easy to suppress the sticky feeling caused by the diamide derivative. Furthermore, silicone can function as a mold release agent when a diamide derivative is applied. The usage-amount of silicone can be about 0.1-5 weight part with respect to 100 weight part of diamide derivatives represented by the said formula (I). Silicone having any property such as liquid or solid can be used, but in the case of liquid, those having a viscosity at 36 ° C. of about 5 to 10,000 mPa · s, more preferably 10 to 1000 mPa · s are suitable. is there. When silicone is used in combination, the diamide derivative is preferably provided in the absorbent article as a mixture with silicone, and the viscosity of the mixture is approximately 5000 mPa · s or less, particularly 200 to 5000 mPa · s, particularly at 36 ° C. It is preferable that it is 500-2000 mPa * s.

  Regardless of whether or not silicone is used, a friction reducing agent can be attached to the absorbent article for the purpose of suppressing skin damage. As the friction reducing agent, a plate-like crystal made of an organic substance or organic fine particles can be used. Examples of the plate crystals include acylated taurine metal salts (lauroyl taurine calcium salt, lauroyl-β-alanyl calcium), distearyl ether, sodium cetyl phosphate, and N-ε-lauroyl-L-lysine. Examples of the organic particles include silicone beads, nylon beads, and chitosan beads.

  If necessary, an antiperspirant such as aluminum hydroxychloride, aluminum-zirconium salt, zinc paraphenolsulfonate, etc. can be applied.

  While the present invention has been described in connection with the most practical and preferred embodiments at the present time, the present invention is not limited to the embodiments disclosed herein. The present invention can be appropriately changed without departing from the gist or concept of the invention that can be read from the claims and the entire specification, and the absorbent article accompanying such a change is also understood to be included in the technical scope of the present invention. It must be.

Hereinafter, the present invention will be specifically described with reference to examples.
Example 1
Using a diamide derivative of the following formula (II), which is one of the diamide derivatives represented by the formula (I), a developed diaper having the same configuration as the diaper 70 of the embodiment was produced.

At this time, as the surface sheet 11, a non-woven fabric having a basis weight of 30 g / m ² using a core-sheath-type composite fiber having a fineness of 3.3 dtex in which the core component is polypropylene and the sheath component is polyethylene is used. Was applied to this nonwoven fabric under a temperature condition of 80 ° C. using a spray coater. The coating amount of the diamide derivative (the coating amount in the coated region) is 1.0 g / m ² , and the viscosity of the coated diamide derivative at 36 ° C. is 1800 mPa · s.

Further, as the side sheets 13a and 13b, a nonwoven fabric having a basis weight of 20 g / m ² formed of polypropylene fibers is used. As the outer layer sheet 15, linear low density polyethylene and calcium carbonate are uniformly mixed, and then the dies are used. A liquid-impermeable breathable film having a moisture permeability of 4800 g / m ² · 24 hours obtained by subjecting the extruded film to a uniaxial stretching treatment was used. And as the absorber 20, the thing which covered the whole absorber obtained by mixing superabsorbent polymer and pulp in the ratio of 50:50 by weight ratio with the mount was used.

(Example 2)
The unfolded diaper is the same as in Example 1 except that the application amount range of the diamide derivative is expanded not only to the entire top sheet 11 but also to the entire inner side surfaces of the waist flaps 30a and 30b and the three-dimensional guards 60a and 60b. Produced.

(Example 3)
Instead of a diamide derivative, a mixture obtained by mixing 2 parts by weight of linear polysiloxane (viscosity at 36 ° C. of 1000 mPa · s) with 100 parts by weight of the diamide derivative (viscosity at 36 ° C. of 1800 mPa · s) An unfolded diaper was produced in the same manner as in Example 1 except that was used.

(Comparative Example 1)
A diaper was produced in the same manner as in Example 1 except that the diamide derivative was not applied.

<Evaluation of ability to prevent diaper rash>
The diapers produced in each Example and Comparative Example 1 were used by 10 monitors, and the relative occurrence frequency when the rash occurrence frequency in the diaper of Comparative Example 1 was 1 was determined. The smaller this value, the higher the rash prevention ability compared to the diaper of Comparative Example 1.

  Table 1 shows the measurement results of the occurrence frequency of rash in each diaper together with the application site of the diamide derivative applied to the diaper.

  As is apparent from Table 1, the diaper produced in each example is superior to the diaper produced in Comparative Example 1 in preventing rash.

FIG. 1 (A) is a schematic view of a diaper according to an embodiment of the present invention held in tension and viewed from above, and FIG. 1 (B) is shown in FIG. 1 (A). It is the schematic of a cross section when a diaper is hold | maintained in a natural state and cut | disconnected in the location corresponded to the IB-IB line | wire shown to FIG. 1 (A).

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Inner sheet 11 Top sheet 13a, 13b Side sheet 15 Outer sheet 20 Absorber 30a, 30b Waist flap 33a, 33b Waist elastic member 35a, 35b Trunk flap 37a, 37b Trunk elastic member 40a, 40b Leg elastic member 45a, 45b Leg flap 60a, 60b Solid guard 70 Absorbent article (diaper)

Claims (4)

On the surface applied to the wearer's skin when worn, the viscosity at 36 ° C. is 200 to 5000 mPa · s, and the viscosity at 80 ° C. is 50 to 200 mPa · s.

Only the diamide derivative represented by these is apply | coated, The absorbent article characterized by the above-mentioned. A liquid impermeable outer layer sheet, an absorber fixed on the outer layer sheet, and a liquid permeable surface sheet covering the absorber in plan view,
The absorptive article according to claim 1 in which said diamide derivative is applied to said surface sheet.   A waist flap disposed around the wearer's waist when worn; and a leg flap disposed around the wearer's neck and around the thigh when worn, wherein the diamide derivative is the waist flap and The absorbent article according to claim 1 or 2, wherein the absorbent article is applied to the leg flap. Having a three-dimensional guard extending in the longitudinal direction of the absorber adjacent to the absorber;
The absorbent article according to claim 2, wherein the diamide derivative is applied to the three-dimensional guard.

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