Absorbent articles

Abstract

To provide an absorbent article capable of effectively making a user feel comfortable cool feelings on right and left areas outside an excretion part.SOLUTION: An absorbent article includes a surface sheet, a rear surface sheet, and an absorber. The absorber has: a first absorber layer arranged on a surface sheet side; a second absorber layer arranged on the rear sheet side; a first adhesive arranged between the first absorber layer and the second absorber layer and adhering the first absorber layer and the second absorber layer; and a cold-sensing agent arranged at least on the first absorber layer. The whole absorber is divided into a central area and lateral areas located on both sides in a horizontal direction of the central area by being evenly divided into three in the horizontal direction. A cold-sensing agent content in the lateral areas of the first absorber layer is larger than a cold-sensing agent content in the lateral areas in the second absorber layer. The lateral area has a first non-adhesion area where the first absorber layer and the second absorber layer are not adhered with the first adhesive.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to an absorbent article such as a panty liner. [Background Art]

[0002] When an absorbent article such as a panty liner is worn, the wearer may often feel discomfort such as stuffiness caused by insensible perspiration and sweating. To address this problem, absorbent articles provided with a cooling agent that can impart a cool sensation are known. For example, Patent Document 1 discloses an absorbent article characterized in that a cooling agent is provided between a top sheet and an absorbent body, and the amount of the cooling material arranged per unit area in a contact region where the wearer's excretory part contacts the top sheet is larger than the amount of the cooling material per unit area in a region outside the contact region. For example, Patent Document 2 discloses an absorbent article characterized in that a cooling agent is provided between a top sheet and an absorbent body, and a region where the amount of cooling material per unit area is larger than that in the contact region is present on the outer side of the contact region in the planar direction of the top sheet. [Prior Art Documents] [Patent Documents]

[0003] [Patent Document 1] Japanese Unexamined Patent Application Publication No. 2010-234031 [Patent Document 2] Japanese Unexamined Patent Application Publication No. 2010-234028 [Summary of the Invention] [Problem to be Solved by the Invention]

[0004] Here, it is preferable that the absorbent article equipped with a cooling agent provides sufficient and comfortable cooling to the areas on the left and right outer sides of the excretory area, which have many sweat glands and are prone to stuffiness, without providing excessive cooling to the particularly delicate excretory area. However, with conventional technology, it has been difficult to effectively provide comfortable cooling to the areas on the left and right outer sides of the excretory area.

[0005] The present invention relates to an absorbent article that can effectively provide a comfortable cooling sensation to the left and right outer areas of the excretory organ. [Means for solving the problem]

[0006] An absorbent article according to one embodiment of the present invention comprises a liquid-permeable surface sheet, a back sheet, and an absorbent material disposed between the surface sheet and the back sheet, and has a longitudinal direction corresponding to the front-to-back direction of the wearer and a transverse direction perpendicular to the longitudinal direction and corresponding to the left-to-right direction of the wearer. The absorbent body is The first absorption layer disposed on the surface sheet side, The second absorption layer, which is arranged on the back sheet side, A first adhesive is placed between the first absorbent layer and the second absorbent layer to bond the first absorbent layer and the second absorbent layer, It comprises at least a cooling agent disposed in the first absorption layer. The entire absorbent is divided into three equal parts in the lateral direction, resulting in a central region and lateral regions located on both sides of the central region in the lateral direction. The amount of cooling agent in the side region of the first absorbent layer is greater than the amount of cooling agent in the side region of the second absorbent layer. The side region has a first non-adherent region in which the first absorbent layer and the second absorbent layer are not adhered by the first adhesive. [Effects of the Invention]

[0007] According to the absorbent article of the present invention, it is possible to effectively provide a comfortable cooling sensation to the left and right outer areas of the excretory organ. [Brief explanation of the drawing]

[0008] [Figure 1] This is a plan view of an absorbent article according to one embodiment of the present invention. [Figure 2] This is a cross-sectional view of the absorbent article, showing a cross-section obtained by cutting along line II-II in Figure 1. [Figure 3] Figure 2 is an enlarged cross-sectional view of the main part of the absorber shown. [Figure 4] This is a plan view of the absorbent sheet of the above absorbent material unfolded. [Figure 5] Figure 4 shows a partial cross-sectional view of the absorbent sheet, obtained by cutting along the VV line. [Figure 6] This is a plan view of the absorbent article shown above, illustrating the positional relationship between the first adhesive of the absorbent material and the first non-adhesive region and the second non-adhesive region. [Modes for carrying out the invention]

[0009] Embodiments of the present invention will be described below with reference to the drawings. Here, a panty liner will be used as an example of an absorbent article. A panty liner is an absorbent article mainly used to absorb discharge and other excretory fluids during non-menstrual periods.

[0010] [Overall composition of a panty liner] As shown in Figure 1, the panty liner 1, as an absorbent article of the present invention, has a longitudinal direction X corresponding to the wearer's front-to-back direction and a transverse direction Y corresponding to the wearer's left-to-right direction and perpendicular to the longitudinal direction X. Furthermore, the panty liner 1 has a thickness direction Z perpendicular to both the longitudinal direction X and the transverse direction Y. In this embodiment, the panty liner 1 is a pad type that is long in the longitudinal direction X and is attached, for example, to the crotch area of ​​underwear. In this specification, "lateral Y outer side" means the side away from the center that divides the panty liner 1 into two equal parts in the lateral Y direction. As used herein, the terms "longitudinal X front" or "front" refer to the front in the longitudinal direction X, that is, the direction toward the ventral side of the wearer. The terms "longitudinal X rear" or "rear" refer to the rear in the longitudinal direction X, that is, the direction toward the dorsal side of the wearer. As used herein, the skin side in the thickness direction Z refers to the side arranged on the wearer's side when the panty liner 1 is worn. The non-skin side in the thickness direction Z refers to the side arranged on the clothing side when the panty liner 1 is worn. As used herein, "plan view" means a plan view of the panty liner 1 stretched on the X-Y plane and viewed from the thickness direction Z.

[0011] As shown in FIG. 2, the panty liner 1 comprises a top sheet 2, a back sheet 3, and an absorber 4. Furthermore, in the present embodiment, the panty liner 1 may optionally comprise a second sheet 5. In the example shown in FIG. 2, the panty liner 1 has a configuration in which the back sheet 3, the absorber 4, the second sheet 5, and the top sheet 2 are laminated in this order in the thickness direction Z. Each member of the panty liner 1 is appropriately joined by, for example, an adhesive, heat sealing, embossing, or the like.

[0012] The top sheet 2 forms the skin-facing surface of the panty liner 1. The top sheet 2 is configured as a liquid-permeable sheet material. Therefore, the top sheet 2 has fine voids (not shown) such as gaps between fibers. Furthermore, as shown in FIG. 1 and FIG. 2, the top sheet 2 may have visually recognizable openings 21 from the viewpoint of enhancing liquid permeability. The sheet material constituting the top sheet 2 is not particularly limited as long as it is a sheet material usable in absorbent articles such as panty liners and sanitary napkins. For example, the top sheet 2 may contain a polyolefin resin such as polyethylene or polypropylene, a polyester resin such as polyethylene terephthalate, or the like. The top sheet 2 may also contain natural fibers such as cotton fibers. As shown in FIG. 1, the top sheet 2 is arranged, for example, over the entire surface of the panty liner 1. Further, the top sheet 2 may have an embossed pattern 22. However, the configuration of the top sheet 2 is not limited to the examples shown in Fig. 1 and Fig. 2.

[0013] The back sheet 3 forms the non-skin-facing surface of the panty liner 1. The back sheet 3 is formed of, for example, a thermoplastic resin film, or a sheet material made of a laminate of the film and a nonwoven fabric, or the like. Such a sheet material preferably has functions such as, for example, liquid poor permeability and / or water repellency. Furthermore, from the viewpoint of improving wearing comfort, the back sheet 3 preferably has air permeability and / or moisture permeability. The back sheet 3 is preferably disposed, for example, over the entire surface of the panty liner 1 and has the same planar shape as the top sheet 2. As shown in Fig. 2, an adhesive 31 for fixing the panty liner 1 to underwear may be disposed on the back sheet 3. The adhesive 31 is composed of, for example, a hot-melt adhesive or the like.

[0014] The absorbent body 4 is disposed between the top sheet 2 and the back sheet 3. For example, the absorbent body 4 may be adhered to the back sheet 3 by a third adhesive 47. The absorbent body 4 only needs to contain an absorbent material capable of absorbing excreted fluid. As shown in Fig. 2, from the viewpoint of reducing thickness to improve wearing comfort, the absorbent body 4 preferably includes an absorbent sheet 40. The absorbent sheet 40 is composed of, for example, absorbent paper or a nonwoven fabric, and may contain a water-absorbent polymer. The detailed configuration of the absorbent body 4 will be described later.

[0015] The absorbent body 4 is not particularly limited, but from the viewpoint of reliably absorbing excreted fluid, it is preferably disposed at the center portion in the lateral direction Y and the longitudinal direction X of the panty liner 1. In addition, from the viewpoint of improving the fit as the panty liner 1, the planar shape of the absorbent body 4 is preferably smaller than that of the top sheet 2, the back sheet 3, and the second sheet 5. A specific example of the planar shape of the absorbent body 4 is the rectangular shape shown in Fig. 1, but is not limited thereto.

[0016] The second sheet 5 is, for example, placed between the surface sheet 2 and the absorbent 4. The second sheet 5 is made of a sheet material that has functions such as permeability and retention of excretory fluid. Preferably, the second sheet 5 has at least one of the following functions: a function to enhance the absorbency of the panty liner 1, a function to reduce the return of excretory fluid absorbed by the absorbent 4 to the surface sheet 2, and a function to draw liquid from the surface sheet 2. The second sheet 5 can be made of materials commonly used in absorbent articles such as panty liners and sanitary napkins, without any particular restrictions. The second sheet 5 may be made of, for example, nonwoven fabric or absorbent paper. Furthermore, from the viewpoint of exhibiting sufficient liquid retention function, it is preferable that the second sheet 5 has a larger planar shape than the absorbent 4. For example, the second sheet 5 may have the same planar shape as the surface sheet 2 and the back sheet 3 and be arranged across the entire surface of the panty liner 1.

[0017] [Composition of the absorbent material] In the example shown in Figure 3, the absorbent 4 has a first absorbent layer 41 arranged on the surface sheet 2 side, a second absorbent layer 42 arranged on the back sheet 3 side, and a first adhesive 43 arranged between the first absorbent layer 41 and the second absorbent layer 42. The absorbent 4 has, for example, a two-layer structure of a first absorbent layer 41 and a second absorbent layer 42. In this embodiment, the first absorbent layer 41 and the second absorbent layer 42 are formed by folding a single absorbent sheet 40 at a predetermined position.

[0018] The first absorbent layer 41 is the skin-facing layer of the absorbent body 4 and has a skin-facing surface 4t. The second absorbent layer 42 is the non-skin-facing layer of the absorbent body 4. The first absorbent layer 41 and the second absorbent layer 42 are preferably configured in sheet form, as shown in Figure 2, but they may be in a shape that extends on a plane along the vertical direction X and the horizontal direction Y. When the first absorbent layer 41 and the second absorbent layer 42 are configured in sheet form, each layer of the first absorbent layer 41 and the second absorbent layer 42 may be made up of a single sheet or of multiple divided sheets. In the example shown in Figure 2, the first absorbent layer 41 is made up of a single sheet and the second absorbent layer 42 is made up of two sheets.

[0019] The first adhesive 43 adheres the first absorbent layer 41 and the second absorbent layer 42. The first adhesive 43 is not particularly limited, but is preferably an adhesive mainly composed of a synthetic resin, and more preferably a hot melt adhesive. Examples of hot melt adhesives include styrene-based and olefin-based adhesives. Examples of styrene-based hot melt adhesives include styrene-butadiene-styrene copolymer (SBS), styrene-isoprene-styrene copolymer (SIS), styrene-ethylene-butylene-styrene copolymer (SEBS), which is a hydrogenated product of SBS, and blended hot melt adhesives made by mixing two or more of these.

[0020] The coating pattern of the first adhesive 43 is not particularly limited, and it may be coated intermittently so that coated and uncoated areas of the first adhesive 43 are mixed, or it may be coated continuously. From the viewpoint of increasing the flexibility of the first adhesive placement area 43r in which the first adhesive 43 is placed, it is preferable that the first adhesive 43 is coated intermittently. Examples of intermittent coating patterns include spiral, summit, omega, curtain, and stripe patterns. The first adhesive placement region 43r refers to the region obtained by surrounding the outer edge of the coated portion of the first adhesive 43 in a plan view, and may include an uncoated portion.

[0021] The entire absorbent 4 is divided into three equal parts in the lateral direction Y, resulting in a central region 4a and two lateral regions 4b. The central region 4a is the region located in the center of the lateral direction Y of the three divided absorbent 4. The lateral regions 4b are the regions located on either side of the central region 4a in the lateral direction Y. The central region 4a and the lateral regions 4b each contain the first absorbent layer 41 and the second absorbent layer 42, respectively. Below, the distribution of the cooling agent and the arrangement of the first adhesive 43 in a total of six regions—the central region 4a and the two lateral regions 4b in the first absorbent layer 41, and the central region 4a and the two lateral regions 4b in the second absorbent layer 42—will be described.

[0022] From the perspective of providing a cooling sensation to the wearer and enhancing comfort, the absorbent material 4 contains a cooling agent C. The cooling agent C is volatile and stimulates temperature receptors (e.g., TRPM8 receptors) on the surface of the wearer's skin or mucous membranes. As a result, the cooling agent C can provide a cooling sensation to the wearer without an actual change in temperature. Typically, absorbent items such as panty liners are sealed in individual packaging before use, and the absorbent material 4 is kept from coming into contact with air. Therefore, the volatilization of the cooling agent C is suppressed before the individual packaging is opened. On the other hand, once the individual packaging is opened, the surface sheet 2 is released, and the volatilization of the cooling agent C begins.

[0023] Examples of components constituting the cooling agent C include cyclohexyl derivatives, cyclohexanol derivatives, carboxamides, and ketones. Examples of cyclohexyl derivatives include menthyl lactate, menthyl ethylaminooxalic acid, 3-(l-menthoxy)propane-1,2-diol, 3-(l-menthoxy)-2-methylpropane-1,2-diol, menthyl succinate, 3-(l-menthoxy)ethane-1-ol, 3-(l-menthoxy)propane-1-ol, 3-(l-menthoxy)butan-1-ol, l-menthyl-4-hydroxypentanoate, and l-menthyl-3-hydroxybutyrate. Examples of cyclohexanol derivatives include menthol, p-menthane-3,8-diol, and isopulegol. Examples of carboxamides include N-ethyl-p-menthane-3-carboxamide (N-ethyl-2-isopropyl-5-methylcyclohexane-1-carboxamide), N,2,3-trimethyl-2-(l-methylethyl)-butanamide, and l-menthylacetic acid N-ethylamide. Examples of ketones include camphor. The cooling agent C of this embodiment preferably contains one or more cooling agent components as listed above. From the viewpoint of providing a cooling sensation quickly after wearing and providing a gentle, sustained cooling sensation, the cooling agent C preferably contains at least one of menthol, camphor, or menthyl lactate, and more preferably contains menthol and menthyl lactate.

[0024] The cooling agent C is placed on the absorbent 4 by various methods, such as spraying, coating, immersion, or transfer. As will be described later, from the viewpoint of effectively exhibiting a cooling sensation in the side region 4b, which is less likely to come into contact with the excretory fluid, it is preferable that the cooling agent C is not encapsulated in a soluble film (such as microcapsules) that dissolves upon contact with moisture. For example, it is preferable that the cooling agent C is applied to the absorbent 4 as a cooling agent-containing liquid containing a cooling agent and a liquid medium. From the viewpoint of efficiently placing the cooling agent C on the absorbent 4, it is preferable that the cooling agent-containing liquid is coated onto the absorbent 4. From the viewpoint of increasing affinity with the absorbent 4, the liquid medium in the cooling agent-containing liquid is preferably a hydrophilic medium, and dipropylene glycol is one example. If the cooling agent-containing liquid is applied to a portion of the absorbent material 4, the cooling agent-containing liquid may diffuse within the absorbent material 4. Therefore, the distribution of the cooling agent C described below will be that of the state after a long period of time (e.g., 7 days or more) has elapsed since the manufacture of the absorbent article, when the cooling agent-containing liquid has sufficiently diffused.

[0025] The cooling agent C is located in at least the first absorbent layer 41. In the example shown in Figure 3, the cooling agent C is located in both the first absorbent layer 41 and the second absorbent layer 42. In Figure 3, the distribution of the cooling agent C in the absorber 4 is represented by a pattern of shaded lines, and the density of the shaded lines schematically represents the amount of cooling agent C per unit area. By positioning the cooling agent C in the absorbent layer 4, which does not directly touch the skin, excessive irritation from the cooling agent C is suppressed. Furthermore, by positioning the cooling agent C in the first absorbent layer 41, the cooling agent C can be placed closer to the skin, providing a comfortable cooling sensation while suppressing excessive irritation.

[0026] Furthermore, it is preferable that the cooling agent C has a characteristic distribution in order to provide a more comfortable cooling sensation. For example, the excretory parts such as the vaginal opening and their vicinity contain a large amount of mucous membrane and are areas that are easily stimulated by the cooling agent C. On the other hand, there are many sweat glands in the areas to the left and right outer sides of the excretory parts. Therefore, insensible perspiration and sweating are abundant in these areas, and discomfort such as stuffiness is likely to occur. Accordingly, in order to provide the wearer with a comfortable cooling sensation, it is preferable to reliably position the cooling agent C opposite the areas to the left and right outer sides of the excretory parts and to configure the cooling agent C to volatilize effectively.

[0027] From this perspective, the amount of cooling agent in the lateral region 4b of the first absorbent layer 41 is greater than the amount of cooling agent in the lateral region 4b of the second absorbent layer 42. This allows a sufficient amount of cooling agent C to be placed in the first absorbent layer 41 on the skin side of the lateral region 4b, making it easier to provide a cooling sensation to the left and right outer regions of the excretory area.

[0028] (Method for measuring the amount of cooling agent) The cooling agent content in the side region 4b of the first absorption layer 41 and the cooling agent content in the side region 4b of the second absorption layer 42 can be measured as follows. First, the absorbent article is disassembled and cut to prepare the sample for measurement. Specifically, the absorbent 4 is removed from the absorbent article according to a standard method. The entire absorbent 4 is then cut into three equal parts in the transverse direction Y, and the side region 4b located on the outside of the transverse direction Y is cut out. The side region 4b is then cut along the fold of the side end 4s to separate the first absorbent layer 41 and the second absorbent layer 42. This yields a sample of the side region 4b of the first absorbent layer 41 and a sample of the side region 4b of the second absorbent layer 42. In addition, from the viewpoint of suppressing the volatilization of the cooling agent C, it is preferable to prepare the sample in a chamber at, for example, 5°C. Furthermore, the absorbent article from which the sample is taken should be at least 7 days old since manufacture, taking into account the diffusion of the cooling agent-containing liquid. Next, the cooling agent in the collected sample is extracted with a solvent (such as methanol), and the extracted solution is analyzed by gas chromatography (GC). As a detector, for example, a flame ionization detector (FID) (e.g., Agilent Technologies, Inc.'s "7890A") can be used. Specifically, a calibration curve is created in advance showing the relationship between the concentration of the compounds constituting the cooling agent and their peak areas, and quantitative analysis is performed based on this calibration curve. This allows for the detection of the cooling agent in the sample and the measurement of the cooling agent content in the target region.

[0029] Furthermore, from the viewpoint of effectively volatilizing the cooling agent C in the side region 4b of the first absorption layer 41, the side region 4b has a first non-adhesive region 44 in which the first absorption layer 41 and the second absorption layer 42 are not bonded by the first adhesive 43. The first non-adhesive region 44 is located in at least a part of the side region 4b, and preferably along the side end 4s, which is the end of the absorber 4 in the lateral direction Y.

[0030] The first non-adhesive region 44 has higher breathability than the first adhesive region 43r because it is not bonded by the first adhesive region 43. By positioning the first non-adhesive region 44 in the side region 4b, the airflow along the thickness direction Z passing through the side region 4b is less obstructed, and the volatilization of the cooling agent C from the side region 4b of the first absorption layer 41 can be promoted. In addition, both the skin-side and non-skin-side surfaces of the side region 4b of the first absorption layer 41 can be in contact with air, and the volatilization of the cooling agent C from both sides can be promoted.

[0031] Furthermore, the cooling agent C volatilized from the lateral region 4b of the first absorption layer 41 passes through the surface sheet 2, which has fine voids and openings 21, and reaches the wearer's skin. Here, the portion of the lateral region 4b of the surface sheet 2 that is on the skin side faces the area around the excretory part, so it is less likely to come into contact with highly viscous excretory fluid, and breathability is easily maintained. For this reason, the cooling agent C volatilized from the lateral region 4b of the first absorption layer 41 easily reaches the skin in the areas on the left and right outer sides of the excretory part along with the air, and the cooling sensation in those areas is easily exerted effectively. In addition, since the cooling agent C is not directly placed on the surface sheet 2, excessive irritation is suppressed and a comfortable cooling sensation can be provided.

[0032] Thus, in the panty liner 1 (absorbent article) of this embodiment, in addition to sufficiently distributing the cooling agent C in the side region 4b of the first absorbent layer 41, a first non-adhesive region 44 is also provided in the side region 4b. This suppresses strong skin irritation from the cooling agent C while promoting the volatilization of the cooling agent C in the side region 4b of the first absorbent layer 41 and its arrival at the skin. Therefore, a comfortable cooling sensation can be effectively provided to the left and right outer regions of the excretory area, which are particularly prone to causing discomfort such as stuffiness, thereby improving the wearer's comfort.

[0033] [Example of the composition of an absorbent material formed from an absorbent sheet] For example, as shown in Figure 3, it is preferable that the first absorbent layer 41 and the second absorbent layer 42 of the absorbent body 4 are made of a single absorbent sheet 40 that is folded back towards the non-skin side at the side end 4s of the absorbent body 4. In this example, the first absorbent layer 41 is connected to the second absorbent layer 42 at the side end 4s. This absorbent body 4 is formed by preparing a single unfolded absorbent sheet 40, as shown in the plan view of Figure 4, and folding a pair of sheet sides 40b of this absorbent sheet 40 toward the non-skin side. The sheet sides 40b are the sides of the unfolded absorbent sheet 40 in the lateral direction Y, and are, for example, the outer parts when the absorbent sheet 40 is divided into approximately four equal parts in the lateral direction Y. If the central part of the absorbent sheet 40 sandwiched between the pair of sheet sides 40b is called the sheet center 40a, then the sheet center 40a constitutes the first absorbent layer 41, and the pair of sheet sides 40b constitute the second absorbent layer 42. In addition, in the absorbent sheet 40, the boundary line between the sheet center 40a and the sheet sides 40b constitutes the side edge 4s of the folded absorbent body 4.

[0034] In the folded absorbent sheet 40, the sheet-side edge 40s is positioned in the central region 4a, as shown in Figure 3. From the viewpoint of suppressing unfolding from the sheet-side edge 40s and maintaining the shape of the absorbent 4, it is preferable that the first adhesive 43 is positioned in at least the central region 4a. The first adhesive 43 may be positioned only in the central region 4a, or it may extend from the central region 4a to a part of the side region 4b. However, in order to provide a first non-adhesive region 44 in the side region 4b, the first adhesive 43 is spaced apart from the side edge 4s.

[0035] In the above configuration, from the viewpoint of more effectively providing a cooling sensation to the left and right outer regions of the excretion area, it is preferable that the amount of cooling agent in the side region 4b is greater than the amount of cooling agent in the central region 4a. The amount of cooling agent in the side region 4b is the amount of cooling agent in the left and right regions when the entire absorbent body 4 is divided into three equal parts in the horizontal direction Y, and is the sum of the amount of cooling agent in the side region 4b of the first absorbent layer 41 and the amount of cooling agent in the side region 4b of the second absorbent layer 42. The amount of cooling agent in the central region 4a is the amount of cooling agent in the central region when the entire absorbent body 4 is divided into three equal parts in the horizontal direction Y, and is the sum of the amount of cooling agent in the central region 4a of the first absorbent layer 41 and the amount of cooling agent in the central region 4a of the second absorbent layer 42.

[0036] Specifically, the cooling agent content in the lateral region 4b and the central region 4a can be measured in the same manner as described in the "Method for Measuring Cooling Agent Content" above. For the measurement sample, the folded absorbent 4 can be divided into three equal parts in the lateral direction Y, thereby obtaining samples from the central region 4a and the lateral region 4b.

[0037] In the above configuration, the relatively high content of the cooling agent in the lateral region 4b allows for sufficient cooling sensation to be provided to the areas on the left and right outer sides of the excretory area, which have many sweat glands. On the other hand, the relatively low content of the cooling agent in the central region 4a prevents excessive cooling sensation to the excretory area, which is particularly sensitive to irritation, thereby reducing discomfort for the wearer.

[0038] In particular, the above configuration is easily obtained when the cooling agent C is applied as a cooling agent-containing liquid. For example, when the cooling agent-containing liquid is applied to the first absorbent layer 41, the cooling agent-containing liquid can diffuse from the first absorbent layer 41 to the second absorbent layer 42 at the side end 4s. As a result, a sufficient amount of cooling agent C can be contained in both the first absorbent layer 41 and the second absorbent layer 42 in the side region 4b, thereby increasing the overall cooling agent content of the side region 4b.

[0039] Furthermore, since the side region 4b has a first non-adhesive region 44, both the front and back surfaces of the first absorbent layer 41 and the second absorbent layer 42 are in contact with the air in the side region 4b, which more effectively promotes the volatilization of the cooling agent C. As a result, a more effective and comfortable cooling sensation can be provided to the left and right outer areas of the wearer's excretory area, further enhancing the wearing comfort.

[0040] In addition, the placement of the first adhesive 43 in the central region 4a makes it easier to maintain the folded structure of the absorbent sheet 40. This suppresses the breakdown of the absorbent 4 and prevents a rapid increase in the breathability of the absorbent 4. Therefore, with the above configuration, the cooling agent C can be continuously evaporated, providing a comfortable and sustained cooling sensation.

[0041] Furthermore, it is preferable that the absorbent sheet 40 has protrusions 40c and recesses 40d extending in the lateral direction Y, as shown in Figure 5. This makes it easier for the cooling agent C to diffuse along the recesses 40d or protrusions 40c extending in the lateral direction Y when the cooling agent-containing liquid diffuses after being applied to the absorbent sheet 40. As a result, the amount of cooling agent in the side region 4b can be increased by the diffusion of the cooling agent-containing liquid. In addition, having protrusions 40c and recesses 40d in the absorbent sheet 40 improves the breathability of the absorbent sheet 40, and also increases its bulkiness and absorbency. The absorbent sheet 40 having the convex portion 40c and the concave portion 40d is preferably made of, for example, crepe-treated absorbent paper or a nonwoven fabric with an uneven surface, and more preferably made of crepe-treated absorbent paper from the viewpoint of promoting the diffusion of the cooling agent-containing liquid.

[0042] Furthermore, it is preferable that the cooling agent content of the first absorbent layer 41 be 2.0 times or less than the cooling agent content of the second absorbent layer 42. This reduces the difference in cooling agent content between the first absorbent layer 41 and the second absorbent layer 42, making it easier to ensure a sufficient cooling agent content in the second absorbent layer 42. As a result, for example, even after the cooling agent C has evaporated from the first absorbent layer 41, which is closer to the skin and more easily exposed to air, the evaporation of the cooling agent C from the second absorbent layer 42 is more likely to continue. Therefore, this configuration makes it easier to provide the wearer with a sustained cooling sensation. Such a distribution of the cooling agent C can be achieved, for example, by having a convex portion 40c and a concave portion 40d extending in the lateral direction Y of the absorbent sheet 40, thereby promoting the diffusion of the cooling agent-containing liquid in the lateral direction Y.

[0043] Specifically, the cooling agent content in the first absorbent layer 41 and the second absorbent layer 42 can be measured in the same manner as described in the "Method for Measuring Cooling Agent Content" above. For the measurement samples, a sample of the first absorbent layer 41 and a sample of the second absorbent layer 42 can be obtained by cutting open the folded absorbent sheet 40 along the side edge 4s of the absorbent body 4.

[0044] Referring to Figure 3, it is preferable that the cooling agent content in the central region 4a of the first absorption layer 41 is greater than the cooling agent content in the side region 4b of the first absorption layer 41. In addition, it is preferable that the cooling agent content in the central region 4a of the second absorption layer 42 is less than the cooling agent content in the side region 4b of the second absorption layer 42. In other words, it is preferable that the region with a high cooling agent content in the first absorption layer 41 and the region with a low cooling agent content in the second absorption layer 42 overlap in the thickness direction Z in the central region 4a.

[0045] Since the first adhesive 43 is placed in the central region 4a, the breathability may be reduced as described above. Therefore, when worn, the rapid volatilization of the cooling agent C from the central region 4a of the first absorbent layer 41 is suppressed, and the cooling agent C in the central region 4a can volatilize continuously and slowly. Furthermore, by reducing the amount of cooling agent in the central region 4a of the second absorbent layer 42, the amount of cooling agent C volatilizing from the entire central region 4a can be suppressed. As a result, it is possible to provide a comfortable and sustained cooling sensation while minimizing irritation to the wearer's delicate excretory area. In addition, by reducing the amount of cooling agent in the central region 4a of the second absorbent layer 42, the increase in the amount of cooling agent C used in the entire absorbent sheet 40 can be suppressed.

[0046] A more preferred example of the above configuration will be described. Preferably, in the first absorbent layer 41, the amount of cooling agent gradually decreases from the central region 4a towards the lateral edge 4s of the lateral region 4b, and in the second absorbent layer 42, the amount of cooling agent gradually decreases from the lateral edge 4s of the lateral region 4b towards the central region 4a. In this way, by gradually changing the amount of cooling agent along the lateral direction Y, it is possible to provide the wearer with a natural and comfortable cooling sensation without giving them a localized and unnatural cooling sensation.

[0047] An absorbent body 4 having such a distribution of the cooling agent C is formed, for example, by applying a cooling agent-containing liquid to the central part 40a of an absorbent sheet 40, as shown in Figure 4, and allowing the cooling agent-containing liquid to diffuse outward in the lateral direction Y of the absorbent sheet 40. This suppresses the increase in the amount of cooling agent C used and allows for the stable realization of the above-mentioned distribution of the cooling agent C.

[0048] Specifically, the cooling agent content in the first absorbent layer 41 and the second absorbent layer 42 can be measured in the same manner as described in the "Method for Measuring Cooling Agent Content" above. However, the sample for measurement is prepared as follows. First, the folded absorbent sheet 40 is cut open along the side edge 4s of the absorbent body 4 to obtain a sample of the first absorbent layer 41 and a sample of the second absorbent layer 42. Furthermore, the sample of the first absorbent layer 41 is cut into three equal parts in the lateral direction Y. Similarly, the sample of the second absorbent layer 42 is cut into three equal parts in the lateral direction Y. Thus, the cut pieces are used as samples for each position, and the cooling agent content of each sample is measured using the method described above. If, in multiple samples of the first absorbent layer 41, the cooling agent content decreases sequentially from the sample located towards the center in the lateral direction Y to the sample located towards the side edge 4s, it is determined that the configuration is such that "in the first absorbent layer 41, the cooling agent content gradually decreases from the central region 4a towards the side edge 4s of the side region 4b." Similarly, if, in multiple samples of the second absorption layer 42, the cooling agent content decreases sequentially from the sample located on the side edge 4s side to the sample located on the lateral Y-center side, it is determined that "the second absorption layer 42 has a configuration in which the cooling agent content gradually decreases from the side edge 4s of the side region 4b towards the central region 4a."

[0049] Furthermore, in the absorbent 4 shown in Figure 3, in the central region 4a of the second absorbent layer 42, a pair of sheet-side edges 40s of the folded absorbent sheet 40 are arranged to overlap. By overlapping the sheet-side edges 40s, which have a low content of the cooling agent C, the increase in the content of the cooling agent C in the central region 4a of the second absorbent layer 42 is suppressed. This makes it possible to suppress a localized increase in the amount of volatilization of the cooling agent C, and to more reliably suppress an unnatural cooling sensation. In addition, by placing the first adhesive 43 in the central region 4a where the sheet-side edges 40s overlap, the folded structure of the absorbent 4 can be more reliably maintained. This makes it possible to suppress the rapid volatilization of the cooling agent C due to the breakdown of the folded structure of the absorbent 4, and to achieve a sustained and comfortable wearing experience.

[0050] [Example of adhesive placement in absorbent material] As described above, the first adhesive 43 is placed between the first absorbent layer 41 and the second absorbent layer 42. In areas where the first adhesive 43 is not placed, breathability is increased, which can contribute to the volatilization of the cooling agent C. Therefore, from the viewpoint of efficiently providing a cooling sensation to the front and / or rear of the excretory part, it is preferable to provide areas where the first adhesive 43 is not placed at the ends in the vertical direction X, in addition to the first non-adhesive area 44.

[0051] From this viewpoint, as shown in Figure 6, it is preferable that the central region 4a has a second non-adhesive region 45 at the longitudinal end 4e in the longitudinal direction X where the first absorbent layer 41 and the second absorbent layer 42 are not bonded by the first adhesive 43. The second non-adhesive region 45 only needs to be located at least one of the longitudinal end 4e at the front of the longitudinal direction X or the longitudinal end 4e at the rear of the longitudinal direction X, and it is preferable that it is located at both the front and rear longitudinal end 4e, respectively. In Figure 6, the second non-adhesive region 45 is represented by a dense dot pattern, and the first non-adhesive region 44 is represented by a coarse dot pattern.

[0052] This improves the breathability not only of the lateral region 4b but also of the longitudinal end 4e of the central region 4a, thereby improving the breathability of the periphery of the absorbent material 4. Consequently, the cooling agent C on the periphery of the absorbent material 4 volatilizes more easily immediately after wearing, making it easier to provide a cooling sensation around the excretory area. More specifically, the area in front of the excretory area is prone to sweating and stuffiness due to the influence of pubic hair, etc., while the area behind the excretory area is prone to sweating and stuffiness due to the influence of the buttocks and sitting posture. Therefore, by placing the second non-adhesive region 45 at the longitudinal end 4e of the central region 4a, the cooling sensation from the cooling agent C can be effectively provided to these areas prone to discomfort. Consequently, the wearer's comfort can be further enhanced.

[0053] Furthermore, although the above-described configuration mentions the arrangement of the first adhesive 43 placed between the first absorbent layer 41 and the second absorbent layer 42, the absorbent body 4 may also have an additional adhesive for bonding with other components.

[0054] As shown in Figure 2, for example, it is preferable that the absorbent 4 further has a second adhesive 46 positioned on the skin-facing surface 4t of the first absorbent layer 41. This second adhesive 46 adheres the absorbent 4 to the adjacent member on the skin side in the thickness direction Z. For example, in the configuration shown in Figure 2, the second adhesive 46 adheres the absorbent 4 to the second sheet 5. Alternatively, if the panty liner 1 does not have a second sheet, the second adhesive 46 may adhere the absorbent 4 to the surface sheet 2.

[0055] The second adhesive 46 can prevent misalignment between the absorbent 4 and the skin-side component, as well as damage to the panty liner 1. On the other hand, if the second adhesive placement area 46r where the second adhesive 46 is placed is too large, the volatilization of the cooling agent C from the first absorbent layer 41 may be suppressed. Therefore, as shown in Figure 2, it is preferable that the second adhesive 46 be placed on the skin-facing surface 4t in the central region 4a of the first absorption layer 41. In addition, it is preferable that the dimension D2 in the lateral direction Y of the second adhesive placement region 46r is smaller than the dimension D1 in the lateral direction Y of the first adhesive placement region 43r. The second adhesive placement region 46r refers to the region obtained by surrounding the outer edge of the coated portion of the second adhesive 46 in a plan view, and may include an uncoated portion. Furthermore, dimension D1 is the maximum dimension in the lateral direction Y of the first adhesive placement region 43r. Dimension D2 is the maximum dimension in the lateral direction Y of the second adhesive placement region 46r.

[0056] With the above configuration, the area covered by the second adhesive 46 in the side region 4b of the first absorbent layer 41 is reduced, making it more difficult to suppress the volatilization of the cooling agent C from the side region 4b of the first absorbent layer 41. On the other hand, the volatilization of the cooling agent C from the central region 4a is suppressed by the second adhesive 46, further reducing the irritation of the cooling agent C to the excretory area. Furthermore, by suppressing the volatilization of the cooling agent C from the central region 4a, the cooling sensation from the cooling agent C can be sustained. As a result, it is possible to provide a sustained cooling sensation while suppressing discomfort such as sweating and stuffiness during wear, thereby enhancing the comfort of the panty liner 1.

[0057] [Examples of numerical values ​​regarding the amount of cooling agent contained] The ratio of the cooling agent content in the side region 4b of the first absorbent layer 41 to the cooling agent content in the side region 4b of the second absorbent layer 42 is preferably 1.1 times or more, more preferably 1.3 times or more, from the viewpoint of providing sufficient cooling sensation to the left and right outer regions of the excretion area. Furthermore, from the viewpoint of containing a sufficient amount of cooling agent C throughout the entire side region 4b, this ratio is preferably 2.0 times or less, more preferably 1.7 times or less. The ratio of the cooling agent content in the lateral region 4b to the cooling agent content in the central region 4a is preferably 1.1 times or more, more preferably 1.2 times or more, from the viewpoint of providing sufficient cooling sensation to the left and right outer regions of the excretory area. Furthermore, from the viewpoint of preventing localized and unnatural cooling sensations, this ratio is preferably 1.7 times or less, more preferably 1.5 times or less. The ratio of the cooling agent content in the first absorbent layer 41 to the cooling agent content in the second absorbent layer 42 is preferably 1.2 times or more, more preferably 1.5 times or more, from the viewpoint of providing a sufficient cooling sensation. Furthermore, from the viewpoint of sustaining the cooling sensation as described above, this ratio is preferably 2.0 times or less, more preferably 1.7 times or less. The ratio of the cooling agent content in the central region 4a of the first absorption layer 41 to the cooling agent content in the lateral region 4b of the first absorption layer 41 is, for example, preferably 1.3 times or more, more preferably 1.5 times or more. Furthermore, from the viewpoint of preventing localized and unnatural cooling sensations, this ratio is preferably 3.0 times or less, more preferably 2.5 times or less. The ratio of the cooling agent content in the central region 4a of the second absorption layer 42 to the cooling agent content in the side region 4b of the second absorption layer 42 is preferably 1.3 times or more, more preferably 1.5 times or more, from the viewpoint of ensuring a sufficient cooling agent content in the side region 4b. Furthermore, from the viewpoint of preventing localized and unnatural cooling sensations, this ratio is preferably 5.0 times or less, more preferably 4.0 times or less.

[0058] [Numerical examples regarding adhesive and non-adhesive areas] The ratio of the dimension D1 of the first adhesive placement area 43r in the lateral Y direction to the maximum dimension of the absorbent body 4 in the lateral Y direction is preferably 50% or more, more preferably 60% or more, from the viewpoint of maintaining the shape of the absorbent body 4. Furthermore, from the viewpoint of ensuring a sufficient first non-adhesive area 44, this ratio is preferably 90% or less, more preferably 85% or less. The ratio of the maximum dimension of the first adhesive placement area 43r in the vertical direction X to the maximum dimension of the absorbent body 4 in the vertical direction X is preferably 50% or more, more preferably 60% or more, from the viewpoint of maintaining the shape of the absorbent body 4. Furthermore, from the viewpoint of ensuring sufficient space for the second non-adhesive area 45, this ratio is preferably 90% or less, more preferably 85% or less. The ratio of the dimension D2 of the second adhesive placement area 46r in the lateral Y direction to the dimension D1 of the first adhesive placement area 43r in the lateral Y direction is preferably 50% or more, more preferably 60% or more, from the viewpoint of reliably joining the absorbent 4 with the member adjacent to its skin side. Furthermore, from the viewpoint of promoting the volatilization of the cooling agent C from the side area 4b, this ratio is preferably 90% or less, more preferably 80% or less. The ratio of the maximum dimension of each first non-adhesive region 44 in the lateral Y direction to the maximum dimension of the absorbent 4 in the lateral Y direction is preferably 5% or more, more preferably 10% or more, from the viewpoint of promoting the volatilization of the cooling agent C from the side region 4b. Furthermore, from the viewpoint of maintaining the shape of the absorbent 4, this ratio is preferably 50% or less, more preferably 40% or less. The ratio of the maximum dimension of each second non-adhesive region 45 in the vertical direction X to the maximum dimension of the absorbent 4 in the vertical direction X is preferably 10% or more, more preferably 15% or more, from the viewpoint of promoting the volatilization of the cooling agent C from the vertical end 4e of the absorbent 4. Furthermore, from the viewpoint of maintaining the shape of the absorbent 4, this ratio is preferably 50% or less, more preferably 40% or less.

[0059] [Basis weight of absorbent sheet] The absorbent sheet 40 is preferably thin and provides a feeling of being integrated with the underwear while having sufficient absorbency. From this viewpoint, the basis weight of the absorbent sheet 40 is preferably 10 g / m². 2 In summary, a comfortable 13g / m² 2 The above is preferable, with a density of 50 g / m². 2 More preferably 40 g / m 2 The following applies:

[0060] [Examples of dimensions for absorbent materials] When the absorbent article is a panty liner 1, it is preferable that the panty liner 1 has the following dimensions in order to obtain the desired absorbency and to provide a comfortable fit that feels as if it is integrated with the underwear. The maximum dimension of the panty liner 1 in the vertical direction X is preferably 100 mm or more, more preferably 120 mm or more, preferably 200 mm or less, and more preferably 180 mm or less. The minimum dimension of the panty liner 1 in the lateral direction Y is preferably 40 mm or more, more preferably 43 mm or more, preferably 55 mm or less, and more preferably 50 mm or less. The maximum dimension of the panty liner 1 in the lateral direction Y is preferably 45 mm or more, more preferably 50 mm or more, preferably 65 mm or less, and more preferably 60 mm or less.

[0061] [Other embodiments] Although embodiments of the present invention have been described above, the present invention is not limited to the embodiments described above, and various modifications can be made without departing from the spirit of the present invention.

[0062] The absorbent material 4 may contain a fragrance in addition to the cooling agent C. This allows the fragrance to mask odors such as those from excretory fluids and sweat. The fragrance can be a common fragrance that volatilizes under atmospheric pressure and whose scent can be perceived in an environment of normal temperature and pressure, and which is suitable for use in absorbent articles. The fragrance may also be contained in the second sheet 5 or other parts other than the absorbent material 4. In addition to the fragrance, the panty liner 1 may also contain functional agents such as antibacterial agents or deodorants.

[0063] In the embodiments described above, the first absorbent layer 41 and the second absorbent layer 42 are described as being composed of an absorbent sheet 40, but the invention is not limited to this. For example, the first absorbent layer 41 and the second absorbent layer 42 may be composed of absorbent layers such as sheet materials that are separated from each other.

[0064] In the embodiments described above, an example was given in which the panty liner 1 includes a second sheet 5, but the absorbent article of the present invention does not necessarily have to include a second sheet.

[0065] In the embodiments described above, panty liners were given as an example of absorbent articles, but the invention is not limited to these. The absorbent articles of the present invention may be, for example, sanitary napkins, incontinence pads, disposable diapers, etc.

[0066] With regard to the embodiments described above, the present invention further discloses the following absorbent articles. <1> An absorbent article comprising a liquid-permeable surface sheet, a back sheet, and an absorbent material disposed between the surface sheet and the back sheet, having a longitudinal direction corresponding to the front-to-back direction of the wearer and a transverse direction perpendicular to the longitudinal direction and corresponding to the left-to-right direction of the wearer, The absorbent body is The first absorption layer disposed on the surface sheet side, The second absorption layer, which is arranged on the back sheet side, A first adhesive is placed between the first absorbent layer and the second absorbent layer to bond the first absorbent layer and the second absorbent layer, It comprises at least a cooling agent disposed in the first absorbent layer, The entire absorbent is divided into three equal parts in the lateral direction, resulting in a central region and lateral regions located on both sides of the central region in the lateral direction. The amount of cooling agent in the side region of the first absorbent layer is greater than the amount of cooling agent in the side region of the second absorbent layer. The aforementioned side region has a first non-adherent region in which the first absorbent layer and the second absorbent layer are not adhered by the first adhesive. Absorbent material. <2> The ratio of the cooling agent content in the side region of the first absorbent layer to the cooling agent content in the side region of the second absorbent layer is 1.1 times or more and 2.0 times or less, preferably 1.3 times or more and 1.7 times or less. The aforementioned <1> Absorbent articles as described above. <3> The ratio of the cooling agent content in the side regions of the first and second absorbent layers to the cooling agent content in the central regions of the first and second absorbent layers is 1.1 to 1.7 times, preferably 1.2 to 1.5 times. The aforementioned <1> or <2> Absorbent articles as described above. <4> The first absorbent layer and the second absorbent layer are composed of a single absorbent sheet that is folded back towards the non-skin side at the lateral end of the absorbent body, The first adhesive is placed at least in the central region, The amount of cooling agent in the aforementioned lateral region is greater than the amount of cooling agent in the aforementioned central region. The aforementioned <3> Absorbent articles as described above. <5> The ratio of the lateral dimension of the first adhesive placement area where the first adhesive is placed to the maximum lateral dimension of the absorbent is 50% or more and 90% or less, preferably 60% or more and 85% or less. The aforementioned <4> Absorbent articles as described above. <6> The ratio of the vertical dimension of the first adhesive placement area where the first adhesive is placed to the maximum vertical dimension of the absorbent is 50% or more and 90% or less, preferably 60% or more and 85% or less. The aforementioned <4> or <5> Absorbent articles as described above. <7> The absorbent sheet has convex and concave portions extending in the lateral direction. The aforementioned <4> from <6> The absorbent article described in any one of the following. <8> The amount of the cooling agent in the first absorbent layer is 2.0 times or less, preferably 1.2 to 2.0 times, and more preferably 1.5 to 1.7 times, compared to the amount of the cooling agent in the second absorbent layer. The aforementioned <4> from <7> The absorbent article described in any one of the following. <9> The amount of the cooling agent in the central region of the first absorbent layer is greater than the amount of the cooling agent in the side regions of the first absorbent layer. The amount of the cooling agent in the central region of the second absorbent layer is less than the amount of the cooling agent in the side regions of the second absorbent layer. The aforementioned <4> from <8> The absorbent article described in any one of the following. <10> The ratio of the cooling agent content in the central region of the first absorbent layer to the cooling agent content in the side region of the first absorbent layer is 1.3 times or more and 3.0 times or less, preferably 1.5 times or more and 2.5 times or less. The aforementioned <4> from <9> The absorbent article described in any one of the following. <11> The ratio of the cooling agent content in the central region of the second absorbent layer to the cooling agent content in the side region of the second absorbent layer is 1.3 times or more and 5.0 times or less, preferably 1.5 times or more and 4.0 times or less. The aforementioned <4> from <10> The absorbent article described in any one of the following. <12> In the first absorption layer, the amount of cooling agent gradually decreases from the central region toward the side edge of the side region. In the second absorption layer, the amount of cooling agent gradually decreases from the side edge of the side region toward the central region. The aforementioned <9> from <11> The absorbent article described in any one of the following. <13> In the central region of the second absorbent layer, a pair of sheet-side edges, which are the lateral edges of the unfolded absorbent sheet, overlap in the thickness direction. The aforementioned <11> or <12> Absorbent articles as described above. <14> The central region has a second non-adherent region at its longitudinal end, which is the end in the longitudinal direction, where the first absorbent layer and the second absorbent layer are not adhered by the first adhesive. The aforementioned <1> from <13> The absorbent article described in any one of the following. <15> The absorbent body is The first absorbent layer further comprises a second adhesive disposed on the skin-facing surface in the central region of the first absorbent layer, The maximum lateral dimension of the second adhesive placement area where the second adhesive is placed is smaller than the maximum lateral dimension of the first adhesive placement area where the first adhesive is placed. The aforementioned <1> from <14> The absorbent article described in any one of the following. <16> The ratio of the lateral dimensions of the second adhesive region to the lateral dimensions of the first adhesive region is 50% or more and 90% or less, preferably 60% or more and 80% or less. The aforementioned <15> Absorbent articles as described above. [Explanation of symbols]

[0067] 1…Panty liner (absorbent item) 2…Surface sheet 3…Back sheet 4… Absorbent 40… Absorbent sheet 41…First absorption layer 42…Second absorption layer 43…First adhesive 44...First non-adhesive area

Claims

1. An absorbent article comprising a liquid-permeable surface sheet, a back sheet, and an absorbent material disposed between the surface sheet and the back sheet, having a longitudinal direction corresponding to the front-to-back direction of the wearer and a transverse direction perpendicular to the longitudinal direction and corresponding to the left-to-right direction of the wearer, The absorbent body is The first absorption layer is disposed on the surface sheet side, The second absorption layer, which is arranged on the back sheet side, A first adhesive is placed between the first absorbent layer and the second absorbent layer to bond the first absorbent layer and the second absorbent layer, It comprises at least a cooling agent disposed in the first absorbent layer, The entire absorbent is divided into three equal parts in the lateral direction, resulting in a central region and lateral regions located on both sides of the central region in the lateral direction. The amount of cooling agent in the side region of the first absorbent layer is greater than the amount of cooling agent in the side region of the second absorbent layer. The side region has a first non-adhesive region in which the first absorbent layer and the second absorbent layer are not bonded by the first adhesive. The first absorbent layer and the second absorbent layer are composed of a single absorbent sheet that is folded back toward the non-skin side at the lateral end of the absorbent body, The first adhesive is placed at least in the central region, The amount of cooling agent in the aforementioned lateral region is greater than the amount of cooling agent in the aforementioned central region. Absorbent material.

2. The absorbent sheet has convex and concave portions extending in the lateral direction. The absorbent article according to claim 1.

3. The amount of the cooling agent in the first absorbent layer is 2.0 times or less than the amount of the cooling agent in the second absorbent layer. The absorbent article according to claim 1 or 2.

4. The amount of the cooling agent in the central region of the first absorbent layer is greater than the amount of the cooling agent in the side regions of the first absorbent layer. The amount of the cooling agent in the central region of the second absorbent layer is less than the amount of the cooling agent in the side regions of the second absorbent layer. The absorbent article according to claim 1 or 2.

5. In the first absorption layer, the amount of cooling agent gradually decreases from the central region toward the side edge of the side region. In the second absorption layer, the amount of cooling agent gradually decreases from the side edge of the side region toward the central region. The absorbent article according to claim 4.

6. In the central region of the second absorbent layer, a pair of sheet-side edges, which are the lateral edges of the unfolded absorbent sheet, overlap in the thickness direction. The absorbent article according to claim 4.

7. The central region has a second non-adherent region at its longitudinal end, which is the end in the longitudinal direction, where the first absorbent layer and the second absorbent layer are not adhered by the first adhesive. The absorbent article according to claim 1 or 2.

8. The absorbent body is The first absorbent layer further comprises a second adhesive disposed on the skin-facing surface in the central region of the first absorbent layer, The maximum lateral dimension of the second adhesive placement area where the second adhesive is placed is smaller than the maximum lateral dimension of the first adhesive placement area where the first adhesive is placed. The absorbent article according to claim 1 or 2.

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