Absorbent article
Patent Information
- Application Number
- JP2022203336
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2022-12-20
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2042-12-20
AI Technical Summary
Conventional absorbent articles with cooling agents fail to provide a comfortable cool sensation to the delicate excretory area and the outer regions, which are prone to sweating and stuffiness.
The absorbent article is designed with a specific distribution of a cooling agent in a three-part horizontal configuration, where the side regions have a higher cooling agent content in the first absorbent layer, and a first non-adhesive region to enhance air permeability, ensuring the cooling agent volatilizes effectively to the outer regions.
This design effectively provides a comfortable cool sensation to the outer regions of the excretory area while minimizing irritation, enhancing wearing comfort by promoting air flow and controlled volatilization of the cooling agent.
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Abstract
Description
[Technical field]
[0001] The present invention relates to absorbent articles such as panty liners. [Background technology]
[0002] When wearing an absorbent article such as a panty liner, the wearer may feel uncomfortable due to stuffiness caused by insensible perspiration, sweating, etc. In response to this, absorbent articles that contain a cooling agent and can provide a cooling sensation are known. For example, Patent Document 1 discloses an absorbent article that includes a cooling agent between a top sheet and an absorbent body, and is characterized in that the amount of the cooling material disposed per unit area in the contact area of the top sheet where the wearer's excretory area comes into contact is greater than the amount of the cooling material per unit area in the area outside the contact area. For example, Patent Document 2 discloses an absorbent article that includes a cooling sensation agent between a top sheet and an absorbent body, and is characterized in that the top sheet has an area on the outside of the contact area in the planar direction of the top sheet where the amount of cooling sensation material per unit area is greater than the amount of cooling sensation material per unit area in the contact area. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] JP 2010-234031 A [Patent Document 2] JP 2010-234028 A Summary of the Invention [Problem to be solved by the invention]
[0004] Here, it is preferable that an absorbent article containing a cooling agent should provide a sufficient and comfortable cooling sensation to the left and right outer regions of the excretory area, which have many sweat glands and are prone to becoming stuffy, without providing an excessively cool sensation to the particularly delicate excretory area. However, with conventional techniques, it has been difficult to effectively provide a comfortable cooling sensation to the left and right outer regions of the excretory area.
[0005] The present invention relates to an absorbent article that can effectively provide a comfortable cool sensation in the left and right outer regions of an excretory part. [Means for solving the problem]
[0006] An absorbent article according to one embodiment of the present invention comprises a liquid-permeable top sheet, a back sheet, and an absorbent body arranged between the top sheet and the back sheet, and has a vertical direction corresponding to the front-to-back direction of a wearer, and a horizontal direction perpendicular to the vertical direction and corresponding to the left-to-right direction of the wearer. The absorbent body is A first absorbent layer disposed on the top sheet side; A second absorbent layer disposed on the back sheet side; a first adhesive disposed between the first absorbent layer and the second absorbent layer and adhering the first absorbent layer and the second absorbent layer; and a cooling agent disposed in at least the first absorbent layer. The entire absorbent body is divided into three equal parts in the lateral direction, and is divided into a central region and side regions located on both sides of the central region in the lateral direction. The cooling agent content in the side regions of the first absorbent layer is greater than the cooling agent content in the side regions of the second absorbent layer. The side regions have first non-adhesive regions where the first absorbent layer and the second absorbent layer are not adhered by the first adhesive. Effect of the Invention
[0007] According to the absorbent article of the present invention, it is possible to effectively provide a comfortable cool sensation in the left and right outer regions of the excretory area. [Brief description of the drawings]
[0008] [Figure 1] 1 is a plan view of an absorbent article according to one embodiment of the present invention. [Diagram 2] 2 is a cross-sectional view of the absorbent article taken along line II-II in FIG. 1. FIG. [Diagram 3] 3 is an enlarged cross-sectional view of a main part of the absorbent body shown in FIG. 2. [Figure 4] FIG. 2 is a plan view of the absorbent sheet of the absorbent body when unfolded. [Diagram 5] 5 is a partial cross-sectional view of the absorbent sheet, showing a part of the cross section taken along line VV in FIG. 4. [Figure 6] FIG. 4 is a plan view of the absorbent article, showing a positional relationship between a first adhesive, and a first non-adhesive region and a second non-adhesive region of the absorbent body. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Here, a panty liner will be taken as an example of an absorbent article. A panty liner is an absorbent article used to absorb excretory fluids such as vaginal discharge, mainly during non-menstrual periods.
[0010] [Overall composition of panty liners] 1, a panty liner 1 as an absorbent article of the present invention has a longitudinal direction X corresponding to the front-to-back direction of a wearer, and a transverse direction Y corresponding to the left-to-right direction of the wearer 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 worn, for example, in the crotch part of an underwear. In this specification, the term "laterally Y-outer side" refers to the side away from the center that divides the panty liner 1 in the lateral direction Y into two equal parts. In this specification, "longitudinal X-direction front" or "front" means the front in the longitudinal direction X, i.e., the direction toward the ventral side of the wearer. "longitudinal X-direction rear" or "rear" means the rear in the longitudinal direction X, i.e., the direction toward the dorsal side of the wearer. In this specification, the skin side in the thickness direction Z means the side that is placed on the wearer side when the panty liner 1 is worn. The non-skin side in the thickness direction Z means the side that is placed on the clothing side when the panty liner 1 is worn. In this specification, the term "planar view" refers to a plan view of the panty liner 1 when stretched on the XY plane and viewed from the thickness direction Z.
[0011] 2, the panty liner 1 comprises a top sheet 2, a back sheet 3, and an absorbent body 4. In this embodiment, the panty liner 1 may further comprise a second sheet 5. 2, the panty liner 1 has a configuration in which a back sheet 3, an absorbent body 4, a second sheet 5, and a top sheet 2 are laminated in this order in the thickness direction Z. Each component of the panty liner 1 is appropriately joined by, for example, 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 made of a sheet material having liquid permeability. Therefore, the top sheet 2 has fine voids (not shown), such as gaps between fibers. Furthermore, the top sheet 2 may have visible openings 21 from the viewpoint of increasing liquid permeability, as shown in Figs. 1 and 2. The sheet material constituting the topsheet 2 is not particularly limited as long as it is a sheet material that can be used in absorbent articles such as panty liners, sanitary napkins, etc. For example, the topsheet 2 may contain a polyolefin resin such as polyethylene or polypropylene, or a polyester resin such as polyethylene terephthalate, etc. The topsheet 2 may also contain natural fibers such as cotton fibers. As shown in FIG. 1, the topsheet 2 is disposed, for example, over the entire surface of the panty liner 1. The top sheet 2 may also have an embossed pattern 22. However, the configuration of the top sheet 2 is not limited to the example shown in FIGS.
[0013] The back sheet 3 forms the non-skin facing surface of the panty liner 1. The back sheet 3 is formed of a sheet material such as a thermoplastic resin film or a laminate of the film and a nonwoven fabric. Such a sheet material preferably has a function such as liquid impermeability and / or water repellency. Furthermore, the back sheet 3 preferably has air permeability and / or moisture permeability from the viewpoint of increasing wearing comfort. The backsheet 3 is disposed, for example, over the entire surface of the panty liner 1 , and preferably has the same planar shape as the topsheet 2 . 2, an adhesive 31 for fixing the panty liner 1 to an undergarment may be disposed on the backsheet 3. The adhesive 31 is made of, for example, a hot melt adhesive.
[0014] The absorbent body 4 is disposed between the topsheet 2 and the backsheet 3. For example, the absorbent body 4 may be adhered to the backsheet 3 by a third adhesive 47. The absorbent body 4 may contain an absorbent material capable of absorbing excreted liquid. As shown in Fig. 2, the absorbent body 4 preferably contains an absorbent sheet 40 from the viewpoint of making it thinner and improving the wearing comfort. The absorbent sheet 40 is made of, for example, absorbent paper or nonwoven fabric, and may contain a water-absorbent polymer. The detailed configuration of the absorbent body 4 will be described later.
[0015] The absorbent 4 is not particularly limited, but from the viewpoint of reliably absorbing excreted liquid, it is preferable to place it in the center of the panty liner 1 in the horizontal direction Y and the vertical direction X. Furthermore, from the viewpoint of improving the fit of the panty liner 1, the planar shape of the absorbent 4 is preferably smaller than those of the top sheet 2, the back sheet 3, and the second sheet 5. Specific examples of the planar shape of the absorbent 4 include, but are not limited to, a rectangular shape as shown in FIG.
[0016] The second sheet 5 is disposed, for example, between the top sheet 2 and the absorbent body 4. The second sheet 5 is composed of a sheet material having functions such as permeability and retention of excreted liquid. The second sheet 5 preferably has at least one of the following functions: a function to increase the absorbency of the panty liner 1, a function to reduce the return of excreted liquid absorbed in the absorbent body 4 to the top sheet 2, and a function to draw liquid from the top sheet 2. There are no particular limitations on the second sheet 5, and it is possible to use any material that is commonly used in absorbent articles such as panty liners, sanitary napkins, etc. The second sheet 5 can be made of, for example, nonwoven fabric or absorbent paper. In order to provide sufficient liquid retention, the second sheet 5 preferably has a planar shape larger than the absorbent body 4. For example, the second sheet 5 may have the same planar shape as the topsheet 2 and the backsheet 3, and be disposed over the entire surface of the panty liner 1.
[0017] [Absorber composition] 3, the absorbent body 4 has a first absorbent layer 41 arranged on the topsheet 2 side, a second absorbent layer 42 arranged on the backsheet 3 side, and a first adhesive 43 arranged between the first absorbent layer 41 and the second absorbent layer 42. The absorbent body 4 has, for example, a two-layer structure of the first absorbent layer 41 and the second absorbent layer 42. In this embodiment, the first absorbent layer 41 and the second absorbent layer 42 are formed by folding back one absorbent sheet 40 at a predetermined position.
[0018] The first absorbent layer 41 is a layer on the skin side of the absorbent body 4 and has a skin-facing surface 4t. The second absorbent layer 42 is a layer on the non-skin side of the absorbent body 4. As shown in FIG. 2, the first absorbent layer 41 and the second absorbent layer 42 are preferably each configured in a sheet shape, but may have a shape extending on a plane along the longitudinal direction X and the lateral direction Y. When the first absorbent layer 41 and the second absorbent layer 42 are configured in a sheet shape, each of the first absorbent layer 41 and the second absorbent layer 42 may be configured as a single sheet or may be configured as a plurality of divided sheets. In the example shown in FIG. 2, the first absorbent layer 41 is configured as a single sheet, and the second absorbent layer 42 is configured as two sheets.
[0019] The first adhesive 43 bonds the first absorbent layer 41 and the second absorbent layer 42. The first adhesive 43 is not particularly limited, but is preferably an adhesive whose main component is 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 blend-based hot melt adhesives which are a mixture of two or more of these.
[0020] The coating pattern of the first adhesive 43 is not particularly limited, and the first adhesive 43 may be applied intermittently so that coated and uncoated portions of the first adhesive 43 are mixed, or may be applied continuously. From the viewpoint of increasing the flexibility of the first adhesive application region 43r in which the first adhesive 43 is applied, it is preferable that the first adhesive 43 is applied intermittently. Examples of intermittent coating patterns include a spiral shape, a summit shape, an omega shape, a curtain shape, and a stripe shape. The first adhesive application region 43r means a 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 body 4 is divided into three equal parts in the horizontal direction Y, into a central region 4a and two side regions 4b. The central region 4a is a region located at the center in the horizontal direction Y of the absorbent body 4 divided into three equal parts. The side regions 4b are regions located on both sides of the central region 4a in the horizontal direction Y. The central region 4a and the side regions 4b each include a first absorbent layer 41 and a second absorbent layer 42. The following describes the distribution of the cooling agent and the arrangement of the first adhesive 43 in a total of six regions, including the central region 4a and the two side regions 4b in the first absorbent layer 41, and the central region 4a and the two side regions 4b in the second absorbent layer 42.
[0022] In order to provide a cool sensation to the wearer and increase comfort, the absorbent 4 contains a cooling sensation agent C. The cooling sensation agent C is volatile and stimulates thermoreceptors (e.g., TRPM8 receptors) on the skin or mucous membrane surface of the wearer. This allows the cooling sensation agent C to provide the wearer with a cool sensation without an actual change in temperature. Typically, an absorbent article such as the panty liner 1 is sealed as an individual package before being worn, and the absorbent 4 is in a state where it is difficult for the absorbent 4 to come into contact with air. Therefore, before the individual package is opened, the volatilization of the cooling agent C is suppressed. On the other hand, when the individual package is opened, the top sheet 2 is opened and the volatilization of the cooling agent C starts.
[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 ethylamino oxalic acid, 3-(l-menthoxy)propane-1,2-diol, 3-(l-menthoxy)-2-methylpropane-1,2-diol, menthyl succinate, 3-(l-menthoxy)ethan-1-ol, 3-(l-menthoxy)propan-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 the 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-menthyl acetic acid N-ethylamide. Examples of the ketones include camphor. The cooling agent C of the present embodiment preferably contains one or more cooling agent components as listed above. From the viewpoint of providing a quick cooling sensation after wearing and a sustained mild cooling sensation, the cooling agent C preferably contains at least one of menthol, camphor, and menthyl lactate, and more preferably contains menthol and menthyl lactate.
[0024] The cooling sensation agent C is disposed in the absorbent body 4 by various methods such as spraying, coating, immersion, and transfer. As described later, from the viewpoint of effectively exerting a cooling sensation in the side region 4b that is unlikely to come into contact with excreted liquid, it is preferable that the cooling sensation agent C is not encapsulated in a soluble coating (such as a microcapsule) that dissolves upon contact with moisture. For example, the cooling sensation agent C is preferably applied to the absorbent body 4 as a cooling sensation agent-containing liquid that contains a cooling sensation agent and a liquid medium. From the viewpoint of efficiently disposing the cooling sensation agent C in the absorbent body 4, the cooling sensation agent-containing liquid is preferably applied to the absorbent body 4. From the viewpoint of increasing affinity with the absorbent body 4, the liquid medium in the cooling sensation agent-containing liquid is preferably a hydrophilic medium, and one example thereof is dipropylene glycol. When the cooling sensation agent-containing liquid is applied to a part of the absorbent body 4, the cooling sensation agent-containing liquid may diffuse within the absorbent body 4. Therefore, the distribution of the cooling sensation agent C described below is the distribution in a state where the cooling sensation agent-containing liquid has sufficiently diffused after a long time (e.g., 7 days or more) has passed since the manufacture of the absorbent article.
[0025] The cooling sensation agent C is disposed at least in the first absorbent layer 41. In the example shown in Fig. 3, the cooling sensation agent C is disposed in the first absorbent layer 41 and the second absorbent layer 42. In Fig. 3, an example of the distribution of the cooling sensation agent C in the absorbent body 4 is represented by a diagonal line pattern, and the density of the diagonal lines typically represents the content of the cooling sensation agent C per unit area. The cooling sensation agent C is disposed in the absorbent body 4 that does not directly contact the skin, thereby suppressing excessive irritation caused by the cooling sensation agent C. Furthermore, the cooling sensation agent C is disposed in the first absorbent layer 41, thereby allowing the cooling sensation agent C to be disposed close to the skin, and a comfortable cool sensation can be imparted 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 cool sensation. For example, excretory parts such as the vaginal opening and the vicinity thereof contain a lot of mucous membranes and are easily stimulated by the cooling agent C. On the other hand, there are many sweat glands in the left and right outer regions of the excretory part. Therefore, insensible perspiration and sweating are high in these regions, and discomfort such as stuffiness is likely to occur. Therefore, in order to provide the wearer with a comfortable cool sensation, it is preferable to reliably arrange the cooling agent C in positions facing the left and right outer regions of the excretory part and to configure the cooling agent C to volatilize effectively.
[0027] From this viewpoint, the cooling sensation agent content in the side regions 4b of the first absorbent layer 41 is greater than the cooling sensation agent content in the side regions 4b of the second absorbent layer 42. This allows a sufficient amount of cooling sensation agent C to be disposed in the first absorbent layer 41 on the skin side of the side regions 4b, making it easier to impart a cooling sensation to the left and right outer regions of the excretory area.
[0028] (Method for measuring cooling agent content) The cooling sensation agent content in the side region 4b of the first absorbent layer 41 and the cooling sensation agent content in the side region 4b of the second absorbent layer 42 can be measured as follows. First, the absorbent article is disassembled and cut to prepare a measurement sample. Specifically, the absorbent body 4 is removed from the absorbent article according to a conventional method. Then, the entire absorbent body 4 is cut into three equal parts in the horizontal direction Y, and the side regions 4b located on the outer sides in the horizontal direction Y are cut out. Then, the side regions 4b are cut along the folds of the side ends 4s to separate the first absorbent layer 41 and the second absorbent layer 42. In this way, 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 are obtained. Note that, from the viewpoint of suppressing the volatilization of the cooling sensation agent C, it is preferable that the sample is prepared in a chamber at, for example, 5°C. In addition, the absorbent article from which the sample is taken is manufactured for more than 7 days, taking into consideration the diffusion of the cooling sensation agent-containing liquid. Next, the cooling agent in the collected sample is extracted with a solvent (e.g., 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' "7890A") can be used. Specifically, a calibration curve is prepared in advance to show the relationship between the concentration of the compound constituting the cooling agent and the peak area, and quantitative analysis is performed based on the calibration curve. This makes it possible to detect the cooling agent in the measurement sample and to measure the cooling agent content in the measurement target area.
[0029] Furthermore, from the viewpoint of effectively volatilizing the cooling sensation agent C in the side region 4b of the first absorbent layer 41, the side region 4b has a first non-adhesive region 44 where the first absorbent layer 41 and the second absorbent layer 42 are not adhered by the first adhesive 43. The first non-adhesive region 44 is disposed in at least a part of the side region 4b, and is preferably disposed along a side end portion 4s which is an end portion in the lateral direction Y of the absorbent body 4.
[0030] The first non-adhesive region 44 has higher breathability than the first adhesive arrangement region 43r because it is not adhered by the first adhesive 43. By arranging the first non-adhesive region 44 in the side region 4b, the flow of air passing through the side region 4b in the thickness direction Z is less likely to be impeded, and the volatilization of the cooling sensation agent C from the side region 4b of the first absorbent layer 41 can be promoted. In addition, both the skin side and non-skin side of the side region 4b of the first absorbent layer 41 can be in contact with air, and the volatilization of the cooling sensation agent C from both sides can be promoted.
[0031] Furthermore, the cooling sensation agent C volatilized from the side regions 4b of the first absorbent layer 41 passes through the top sheet 2 having fine gaps and openings 21 to reach the wearer's skin. Here, the parts of the side regions 4b of the top sheet 2 located on the skin side face the periphery of the excretory part, so they are unlikely to come into contact with highly viscous excretory liquid and are likely to maintain breathability. Therefore, the cooling sensation agent C volatilized from the side regions 4b of the first absorbent layer 41 easily reaches the skin in the regions on the left and right outer sides of the excretory part together with air, and the cooling sensation in these regions is likely to be effectively exerted. In addition, since the cooling sensation agent C is not directly disposed on the top sheet 2, excessive irritation is suppressed and a comfortable cooling sensation can be provided.
[0032] In this way, in the panty liner 1 (absorbent article) of this embodiment, in addition to disposing a sufficient amount of cooling sensation agent C in the side region 4b of the first absorbent layer 41, the first non-adhesive region 44 is disposed in the side region 4b. This makes it possible to promote the volatilization of the cooling sensation agent C in the side region 4b of the first absorbent layer 41 and the arrival of this cooling sensation agent C at the skin while suppressing strong irritation to the skin caused by the cooling sensation agent C. Therefore, a comfortable cool sensation can be effectively imparted to the left and right outer regions of the excretory part, which are particularly prone to discomfort such as stuffiness, and the wearing comfort of the wearer can be improved.
[0033] [Example of absorbent body structure made of absorbent sheet] 3, the first absorbent layer 41 and the second absorbent layer 42 of the absorbent body 4 are preferably formed of a single absorbent sheet 40 folded back to 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. The absorbent body 4 is formed by preparing a single absorbent sheet 40 in an unfolded state as shown in the plan view of FIG. 4, and folding a pair of sheet side portions 40b of the absorbent sheet 40 toward the non-skin side. The sheet side portions 40b are the sides of the absorbent sheet 40 in the lateral direction Y in the unfolded state, and are, for example, the outer portions when the absorbent sheet 40 is divided into approximately four equal parts in the lateral direction Y. If the central portion of the absorbent sheet 40 sandwiched between the pair of sheet side portions 40b is defined as the sheet central portion 40a, the sheet central portion 40a constitutes the first absorbent layer 41, and the pair of sheet side portions 40b constitute the second absorbent layer 42. In the absorbent sheet 40, the boundary between the sheet central portion 40a and the sheet side portions 40b constitutes the side end portions 4s of the folded absorbent body 4.
[0034] In the folded absorbent sheet 40, the sheet side end 40s is disposed in the central region 4a as shown in Fig. 3. From the viewpoint of suppressing opening from the sheet side end 40s and maintaining the shape of the absorbent body 4, it is preferable that the first adhesive 43 is disposed at least in the central region 4a. The first adhesive 43 may be disposed only in the central region 4a, or 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 separated from the side end 4s.
[0035] In the above configuration, from the viewpoint of providing a cooling sensation more effectively to the left and right outer regions of the excretory part, the cooling agent content in the side regions 4b is preferably greater than the cooling agent content in the central region 4a. The cooling agent content in the side regions 4b is the cooling agent content in the left and right regions when the entire absorbent body 4 is divided into thirds in the horizontal direction Y, and is the sum of the cooling agent content in the side regions 4b of the first absorbent layer 41 and the cooling agent content in the side regions 4b of the second absorbent layer 42. The cooling agent content in the central region 4a is the cooling agent content in the central region when the entire absorbent body 4 is divided into thirds in the horizontal direction Y, and is the sum of the cooling agent content in the central region 4a of the first absorbent layer 41 and the cooling agent content in the central region 4a of the second absorbent layer 42.
[0036] Specifically, the cooling agent content in each of the side regions 4b and the central region 4a can be measured in the same manner as the above-mentioned "Method for measuring cooling agent content." Measurement samples can be obtained by cutting the folded absorbent 4 into three equal parts in the horizontal direction Y into three regions, thereby obtaining samples of each of the central region 4a and side regions 4b.
[0037] In the above configuration, the cooling sensation agent content in the side regions 4b is relatively high, so that the left and right outer regions of the excretory area, which have many sweat glands, can be sufficiently cooled. On the other hand, the cooling sensation agent content in the central region 4a is relatively low, so that the excretory area, which is particularly sensitive to stimuli, is prevented from being excessively cooled, and discomfort to the wearer can be reduced.
[0038] In particular, when the cooling agent C is applied as a cooling agent-containing liquid, the above configuration is easily obtained. For example, when the cooling agent-containing liquid is applied to the first absorbent layer 41, the cooling agent-containing liquid may diffuse from the first absorbent layer 41 to the second absorbent layer 42 at the side end portion 4s. This allows a sufficient amount of cooling agent C to be contained in both the first absorbent layer 41 and the second absorbent layer 42 in the side region 4b, and the cooling agent content in the entire side region 4b can be increased.
[0039] Furthermore, since the side regions 4b have the first non-adhesive regions 44, both the front and back of the first absorbent layer 41 and the second absorbent layer 42 are in contact with air in the side regions 4b, which more effectively promotes the volatilization of the cooling sensation agent C. This makes it possible to provide a more effective and comfortable cooling sensation to the left and right outer regions of the wearer's excretory area, and further improves the wearing comfort.
[0040] In addition, since the first adhesive 43 is disposed in the central region 4a, the folded structure of the absorbent sheet 40 is easily maintained. This makes it possible to suppress breakage of the absorbent body 4 and to suppress a sudden increase in the breathability of the absorbent body 4. Therefore, the above-mentioned configuration makes it possible to realize sustained volatilization of the cooling sensation agent C, and to provide a comfortable and sustained cool sensation.
[0041] In addition, the absorbent sheet 40 preferably has convex portions 40c and concave portions 40d extending in the lateral direction Y, as shown in Fig. 5. This makes it easier for the cooling agent C to diffuse along the concave portions 40d or convex portions 40c extending in the lateral direction Y when the cooling agent-containing liquid diffuses after being applied to the absorbent sheet 40. This makes it possible to increase the cooling agent content in the side regions 4b by diffusing the cooling agent-containing liquid. In addition, by the absorbent sheet 40 having the convex portions 40c and the concave portions 40d, the breathability of the absorbent sheet 40 can be improved, and the absorbency can also be improved by increasing the bulk. The absorbent sheet 40 having the convex portions 40c and the concave portions 40d is preferably made of, for example, creped absorbent paper or a nonwoven fabric including concaves and convexes, and from the viewpoint of promoting the diffusion of the cooling sensation agent-containing liquid, it is more preferable that the absorbent sheet 40 be made of creped absorbent paper.
[0042] Furthermore, the cooling agent content of the first absorbent layer 41 is preferably 2.0 times or less the cooling agent content of the second absorbent layer 42. This makes it possible to reduce the difference in cooling agent content between the first absorbent layer 41 and the second absorbent layer 42, making it easier to ensure the cooling agent content of the second absorbent layer 42. As a result, for example, even after the cooling agent C has volatilized from the first absorbent layer 41, which is closer to the skin and more likely to come into contact with air, the volatilization of the cooling agent C from the second absorbent layer 42 tends to continue. Therefore, this configuration makes it easier to provide a sustained cool sensation to the wearer. Such a distribution of the cooling agent C can be achieved, for example, by the absorbent sheet 40 having convex portions 40c and concave portions 40d extending in the lateral direction Y, thereby facilitating the diffusion of the cooling agent-containing liquid in the lateral direction Y.
[0043] Specifically, the cooling agent content in each of the first absorbent layer 41 and the second absorbent layer 42 can be measured in the same manner as the above-mentioned "Method for measuring cooling agent content". 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] 3, the cooling agent content in the central region 4a of the first absorbent layer 41 is preferably greater than the cooling agent content in the side regions 4b of the first absorbent layer 41. In addition, the cooling agent content in the central region 4a of the second absorbent layer 42 is preferably less than the cooling agent content in the side regions 4b of the second absorbent layer 42. In other words, it is preferable that a region with a high cooling agent content in the first absorbent layer 41 and a region with a low cooling agent content in the second absorbent layer 42 overlap in the thickness direction Z in the central region 4a.
[0045] Since the first adhesive 43 is disposed in the central region 4a, the breathability may be reduced as described above. Therefore, when worn, the cooling sensation agent C is prevented from volatilizing suddenly from the central region 4a of the first absorbent layer 41, and the cooling sensation agent C in the central region 4a can volatilize continuously and slowly. Furthermore, by reducing the content of the cooling sensation agent in the central region 4a of the second absorbent layer 42, the amount of cooling sensation agent C volatilized from the entire central region 4a can be reduced. As a result, a comfortable and sustained cool sensation can be provided while suppressing irritation to the wearer's delicate excretory area. Furthermore, by reducing the content of the cooling sensation agent in the central region 4a of the second absorbent layer 42, the amount of cooling sensation agent C used in the entire absorbent sheet 40 can be suppressed.
[0046] A more preferable example of the above configuration will be described. It is preferable that the cooling agent content in the first absorbent layer 41 gradually decreases from the central region 4a toward the side end 4s of the side region 4b, and that the cooling agent content in the second absorbent layer 42 gradually decreases from the side end 4s of the side region 4b toward the central region 4a. In this way, by gradually changing the cooling agent content along the lateral direction Y, it is possible to provide the wearer with a natural and comfortable cooling sensation without providing a localized and unnatural cooling sensation.
[0047] 4, the absorbent body 4 having such a distribution of the cooling sensation agent C is formed by applying a cooling sensation agent-containing liquid to the sheet center portion 40a of the absorbent sheet 40 and diffusing the cooling sensation agent-containing liquid outward in the lateral direction Y of the absorbent sheet 40. This makes it possible to suppress an increase in the amount of cooling sensation agent C used and to stably achieve the above-mentioned distribution of the cooling sensation 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 in the "Method of Measuring the Cooling Agent Content" described above. However, the measurement samples are prepared as follows. First, the folded absorbent sheet 40 is cut open along the side end 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. The sample of the first absorbent layer 41 is then cut into three equal parts in the horizontal direction Y. Similarly, the sample of the second absorbent layer 42 is cut into three equal parts in the horizontal direction Y. The cut pieces are then used as samples at each position, and the cooling agent content of each sample is measured by the above-mentioned method. When the cooling agent content of the first absorbent layer 41 samples decreases from the sample located at the center in the horizontal direction Y to the sample located at the side end 4s, the first absorbent layer 41 is determined to have a configuration in which the cooling agent content gradually decreases from the central region 4a to the side end 4s of the side region 4b. Similarly, if the cooling agent content decreases from the sample located on the side end 4s side toward the sample located on the central side in the lateral direction Y in multiple samples of the second absorbent layer 42, it is determined that the second absorbent layer 42 has a configuration in which "the cooling agent content gradually decreases from the side end 4s of the side region 4b toward the central region 4a."
[0049] In the absorbent body 4 shown in FIG. 3, a pair of sheet side ends 40s of the folded absorbent sheet 40 are arranged to overlap in the central region 4a of the second absorbent layer 42. The overlapping of the sheet side ends 40s containing a small amount of cooling agent C suppresses an increase in the content of the cooling agent C in the central region 4a of the second absorbent layer 42. This makes it possible to suppress a local increase in the amount of volatilization of the cooling agent C, and more reliably suppress an unnatural cool sensation. In addition, the first adhesive 43 is arranged in the central region 4a where the sheet side ends 40s overlap, so that the folded structure of the absorbent body 4 can be more reliably maintained. This makes it possible to suppress a sudden volatilization of the cooling agent C caused by the collapse of the folded structure of the absorbent body 4, and achieve a sustained and comfortable fit.
[0050] [Example of adhesive placement in absorbent material] As described above, the first adhesive 43 is disposed between the first absorbent layer 41 and the second absorbent layer 42, but in the region where the first adhesive 43 is not disposed, breathability is improved, which may contribute to the volatilization of the cooling sensation agent C. Therefore, from the viewpoint of efficiently imparting a cooling sensation to the front and / or rear of the excretory part, it is preferable to provide a region where the first adhesive 43 is not disposed at the end in the longitudinal direction X in addition to the first non-adhesive region 44.
[0051] From this viewpoint, as shown in Fig. 6, the central region 4a preferably has a second non-adhesive region 45 at a longitudinal end 4e in the longitudinal direction X where the first absorbent layer 41 and the second absorbent layer 42 are not adhered by the first adhesive 43. The second non-adhesive region 45 may be disposed at at least one of the front longitudinal end 4e in the longitudinal direction X or the rear longitudinal end 4e in the longitudinal direction X, and is preferably disposed at each of the front and rear longitudinal end 4e in the longitudinal direction X. In Fig. 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 of not only the side regions 4b but also the longitudinal end 4e of the central region 4a, and improves the breathability of the peripheral portion of the absorbent 4. Therefore, the cooling agent C of the peripheral portion of the absorbent 4 is easily volatilized immediately after wearing, and it is easy to give a cool feeling around the excretory portion. More specifically, the region in front of the excretory portion is easily affected by pubic hair and the like, and the region behind the excretory portion is easily affected by buttocks and sitting position. Therefore, by arranging the second non-adhesive region 45 at the longitudinal end 4e of the central region 4a, it is possible to effectively give a cool feeling by the cooling agent C to such an area that is easily affected by discomfort. Therefore, it is possible to further improve the wearing comfort of the wearer.
[0053] In addition, in the above-mentioned configuration, the arrangement of the first adhesive 43 arranged between the first absorbent layer 41 and the second absorbent layer 42 has been described, but the absorbent body 4 may further have an adhesive for adhering to other members.
[0054] As shown in Fig. 2, for example, the absorbent body 4 preferably further has a second adhesive 46 disposed on the skin-facing surface 4t of the first absorbent layer 41. This second adhesive 46 bonds the absorbent body 4 to an adjacent member on the skin side in the thickness direction Z. For example, in the configuration shown in Fig. 2, the second adhesive 46 bonds the absorbent body 4 to the second sheet 5. Furthermore, when the panty liner 1 does not have a second sheet, the second adhesive 46 may bond the absorbent body 4 to the topsheet 2.
[0055] The second adhesive 46 can prevent misalignment between the absorbent body 4 and its skin-side component and damage to the panty liner 1. On the other hand, if the second adhesive disposing region 46r where the second adhesive 46 is disposed is too wide, volatilization of the cooling sensation agent C from the first absorbent layer 41 may be suppressed. For this reason, as shown in Fig. 2, the second adhesive 46 is preferably disposed on the skin-facing surface 4t in the central region 4a of the first absorbent layer 41. In addition, it is preferable that the dimension D2 in the lateral direction Y of the second adhesive disposition region 46r is smaller than the dimension D1 in the lateral direction Y of the first adhesive disposition region 43r. Note that the second adhesive disposition region 46r means the region obtained by surrounding the outer edge of the coated portion of the second adhesive 46 in a plan view, and may include a non-coated portion. Furthermore, the dimension D1 is the maximum dimension in the lateral direction Y of the first adhesive disposition region 43r. The dimension D2 is the maximum dimension in the lateral direction Y of the second adhesive disposition region 46r.
[0056] With the above-mentioned configuration, the area covered by the second adhesive 46 in the side regions 4b of the first absorbent layer 41 is reduced, making it difficult to suppress the volatilization of the cooling sensation agent C from the side regions 4b of the first absorbent layer 41. On the other hand, the second adhesive 46 suppresses the volatilization of the cooling sensation agent C from the central region 4a, further reducing the irritation of the cooling sensation agent C to the excretory area. Furthermore, suppressing the volatilization of the cooling sensation agent C from the central region 4a can sustain the cooling sensation provided by the cooling sensation agent C. This makes it possible to provide a sustained cooling sensation while suppressing discomfort such as sweating and stuffiness when worn, thereby improving the comfort of the panty liner 1.
[0057] [Numerical example regarding cooling agent content] The ratio of the cooling sensation agent content in the side region 4b of the first absorbent layer 41 to the cooling sensation 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 a sufficient cooling sensation to the left and right outer regions of the excretory part. Moreover, the ratio is preferably 2.0 times or less, more preferably 1.7 times or less, from the viewpoint of containing a sufficient amount of the cooling sensation agent C in the entire side region 4b. The ratio of the cooling sensation agent content in the side regions 4b to the cooling sensation 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 a sufficient cooling sensation to the left and right outer regions of the excretory part. Moreover, the ratio is preferably 1.7 times or less, more preferably 1.5 times or less, from the viewpoint of preventing a localized and unnatural cooling sensation. From the viewpoint of providing a sufficient cooling sensation, the ratio of the cooling sensation agent content in the first absorbent layer 41 to the cooling sensation agent content in the second absorbent layer 42 is preferably 1.2 times or more, more preferably 1.5 times or more. Moreover, from the viewpoint of sustaining the cooling sensation as described above, the ratio is preferably 2.0 times or less, more preferably 1.7 times or less. The ratio of the cooling sensation agent content in the central region 4a of the first absorbent layer 41 to the cooling sensation agent content in the side regions 4b of the first absorbent layer 41 is, for example, preferably 1.3 times or more, more preferably 1.5 times or more. From the viewpoint of preventing a localized and unnatural cool sensation, the ratio is preferably 3.0 times or less, more preferably 2.5 times or less. The ratio of the cooling sensation agent content in the central region 4a of the second absorbent layer 42 to the cooling sensation agent content in the side regions 4b of the second absorbent layer 42 is preferably 1.3 times or more, more preferably 1.5 times or more, from the viewpoint of ensuring a sufficient cooling sensation agent content in the side regions 4b. Moreover, the ratio is preferably 5.0 times or less, more preferably 4.0 times or less, from the viewpoint of preventing a localized and unnatural cool sensation.
[0058] [Numerical examples of bonded and non-bonded regions] The ratio of the dimension D1 in the lateral direction Y of the first adhesive disposition region 43r to the maximum dimension in the lateral direction Y of the absorbent body 4 is preferably 50% or more, and more preferably 60% or more, from the viewpoint of maintaining the shape of the absorbent body 4. Moreover, from the viewpoint of sufficiently securing the first non-adhesive region 44, this ratio is preferably 90% or less, and more preferably 85% or less. The ratio of the maximum dimension in the longitudinal direction X of the first adhesive application region 43r to the maximum dimension in the longitudinal direction X of the absorbent body 4 is preferably 50% or more, more preferably 60% or more, from the viewpoint of maintaining the shape of the absorbent body 4. Moreover, from the viewpoint of sufficiently securing the second non-adhesive region 45, this ratio is preferably 90% or less, more preferably 85% or less. The ratio of the dimension D2 in the horizontal direction Y of the second adhesive disposing region 46r to the dimension D1 in the horizontal direction Y of the first adhesive disposing region 43r is preferably 50% or more, more preferably 60% or more, from the viewpoint of reliably bonding the absorbent body 4 and the member adjacent to the skin side thereof. Moreover, from the viewpoint of promoting the volatilization of the cooling sensation agent C from the side regions 4b, this ratio is preferably 90% or less, more preferably 80% or less. The ratio of the maximum dimension in the lateral direction Y of each first non-adhesive region 44 to the maximum dimension in the lateral direction Y of the absorbent body 4 is preferably 5% or more, more preferably 10% or more, from the viewpoint of promoting volatilization of the cooling sensation agent C from the side regions 4b. Moreover, from the viewpoint of maintaining the shape of the absorbent body 4, the ratio is preferably 50% or less, more preferably 40% or less. The ratio of the maximum dimension in the longitudinal direction X of each second non-adhesive region 45 to the maximum dimension in the longitudinal direction X of the absorbent body 4 is preferably 10% or more, more preferably 15% or more, from the viewpoint of promoting volatilization of the cooling sensation agent C from the longitudinal end portion 4e of the absorbent body 4. Moreover, from the viewpoint of maintaining the shape of the absorbent body 4, the ratio is preferably 50% or less, more preferably 40% or less.
[0059] [Absorbent sheet basis weight] It is preferable that the absorbent sheet 40 is thin enough to provide a feeling of being integrated with underwear while having sufficient absorbency. From this viewpoint, the basis weight of the absorbent sheet 40 is preferably 10 g / m 2 More preferably, 13 g / m 2 More preferably, it is 50 g / m 2 Less than 40 g / m 2 The following is the result.
[0060] [Examples of absorbent article dimensions] When the absorbent article is a panty liner 1, from the viewpoint of obtaining the desired absorbency and providing a comfortable fit as if integrated with underwear, it is preferable that the panty liner 1 has the following dimensions. The maximum dimension of the panty liner 1 in the longitudinal direction X is preferably 100 mm or more, more preferably 120 mm or more, and is preferably 200 mm or less, 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, and is preferably 55 mm or less, 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, and is preferably 65 mm or less, more preferably 60 mm or less.
[0061] [Other embodiments] Although the embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and it goes without saying that various modifications can be made without departing from the spirit of the present invention.
[0062] The absorbent 4 may contain a fragrance in addition to the cooling agent C. This allows the fragrance to mask the odor of excreted fluid, sweat, etc. The fragrance may be a normal fragrance that volatilizes under atmospheric pressure and whose odor can be perceived under normal temperature and pressure conditions, and that can be used in absorbent articles. The fragrance may also be contained in the second sheet 5 or the like other than the absorbent 4. In addition to the fragrance, the panty liner 1 may contain a functional agent such as an antibacterial agent or a deodorant.
[0063] In the above embodiment, the first absorbent layer 41 and the second absorbent layer 42 are described as being composed of the absorbent sheet 40, but are not limited thereto. 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 above embodiment, an example was given in which the panty liner 1 includes the second sheet 5, but the absorbent article of the present invention does not necessarily need to include the second sheet.
[0065] In the above embodiment, the panty liner is shown as an example of the absorbent article, but the absorbent article of the present invention is not limited to this. For example, the absorbent article of the present invention may be a sanitary napkin, a urine pad, a disposable diaper, etc.
[0066] In relation to the above-mentioned embodiments, the present invention further discloses the following absorbent article. <1> An absorbent article comprising a liquid-permeable top sheet, a back sheet, and an absorbent body disposed between the top sheet and the back sheet, the absorbent article having a vertical direction corresponding to a front-to-back direction of a wearer, and a horizontal direction perpendicular to the vertical direction and corresponding to a left-to-right direction of the wearer, The absorbent body is A first absorbent layer disposed on the top sheet side; A second absorbent layer disposed on the back sheet side; a first adhesive disposed between the first absorbent layer and the second absorbent layer and adhering the first absorbent layer and the second absorbent layer; A cooling agent disposed in at least the first absorbent layer, The entire absorbent body is divided into three equal parts in the lateral direction, and is divided into a central region and side regions located on both sides of the central region in the lateral direction, the cooling sensation agent content in the side region of the first absorbent layer is greater than the cooling sensation agent content in the side region of the second absorbent layer; The side regions have first non-adhesive regions in which the first absorbent layer and the second absorbent layer are not adhered by the first adhesive. Absorbent articles. <2> The ratio of the cooling sensation agent content in the side region of the first absorbent layer to the cooling sensation 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 above <1> An absorbent article as described above. <3> The ratio of the cooling sensation agent content in the side regions of the first absorbent layer and the second absorbent layer to the cooling sensation agent content in the central region of the first absorbent layer and the second absorbent layer is 1.1 times or more and 1.7 times or less, preferably 1.2 times or more and 1.5 times or less. The above <1> or <2> An absorbent article as described above. <4> the first absorbent layer and the second absorbent layer are each formed of a single absorbent sheet folded back toward the non-skin side at a side end portion, which is an end portion in the lateral direction of the absorbent body; the first adhesive is disposed in at least the central region; The cooling agent content in the side regions is greater than the cooling agent content in the central region. The above <3> An absorbent article as described above. <5> The ratio of the dimension in the lateral direction of the first adhesive application region in which the first adhesive is applied to the maximum dimension in the lateral direction of the absorbent body is 50% or more and 90% or less, preferably 60% or more and 85% or less. The above <4> An absorbent article as described above. <6> The ratio of the dimension in the longitudinal direction of the first adhesive application region in which the first adhesive is applied to the maximum dimension in the longitudinal direction of the absorbent body is 50% or more and 90% or less, preferably 60% or more and 85% or less. The above <4> or <5> An absorbent article as described above. <7> The absorbent sheet has protrusions and recesses extending in the lateral direction. The above <4> from <6> 13. An absorbent article according to any one of claims 1 to 12. <8> The cooling sensation agent content of the first absorbent layer is 2.0 times or less, preferably 1.2 times or more and 2.0 times or less, more preferably 1.5 times or more and 1.7 times or less, the cooling sensation agent content of the second absorbent layer. The above <4> from <7> 13. An absorbent article according to any one of claims 1 to 12. <9> the cooling agent content in the central region of the first absorbent layer is greater than the cooling agent content in the side regions of the first absorbent layer; The cooling agent content in the central region of the second absorbent layer is less than the cooling agent content in the side regions of the second absorbent layer. The above <4> from <8> 13. An absorbent article according to any one of claims 1 to 12. <10> The ratio of the cooling sensation agent content in the central region of the first absorbent layer to the cooling sensation agent content in the side regions 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 above <4> from <9> 13. An absorbent article according to any one of claims 1 to 12. <11> The ratio of the cooling sensation agent content in the central region of the second absorbent layer to the cooling sensation agent content in the side regions 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 above <4> from <10> 13. An absorbent article according to any one of claims 1 to 12. <12> In the first absorbent layer, the cooling sensation agent content gradually decreases from the central region toward the side end of the side region, In the second absorbent layer, the cooling sensation agent content gradually decreases from the side end of the side region toward the central region. The above <9> from <11> 13. An absorbent article according to any one of claims 1 to 12. <13> In the central region of the second absorbent layer, a pair of sheet side ends, which are ends in the lateral direction of the absorbent sheet in an expanded state, overlap in the thickness direction. The above <11> or <12> An absorbent article as described above. <14> The central region has a second non-adhesive region at a longitudinal end portion, where the first absorbent layer and the second absorbent layer are not adhered by the first adhesive. The above <1> from <13> 13. An absorbent article according to any one of claims 1 to 12. <15> The absorbent body is a second adhesive disposed on a skin-facing surface of the first absorbent layer in the central region; The maximum dimension in the lateral direction of the second adhesive placement area in which the second adhesive is placed is smaller than the maximum dimension in the lateral direction of the first adhesive placement area in which the first adhesive is placed. The above <1> from <14> 13. An absorbent article according to any one of claims 1 to 12. <16> The ratio of the dimension of the second adhesive region in the lateral direction to the dimension of the first adhesive region in the lateral direction is 50% or more and 90% or less, preferably 60% or more and 80% or less. The above <15> An absorbent article as described above. [Explanation of symbols]
[0067] 1. Panty liners (absorbent articles) 2. Surface sheet 3…Back sheet 4…Absorbent 40...Absorbent sheet 41…First absorption layer 42…Second absorbent layer 43…First adhesive 44...First non-adhesive area
Claims
1. An absorbent article comprising a liquid-permeable top sheet, a back sheet, and an absorbent body disposed between the top sheet and the back sheet, the absorbent article having a vertical direction corresponding to the front-to-back direction of a wearer, and a horizontal direction perpendicular to the vertical direction and corresponding to the left-to-right direction of the wearer, The absorbent body is a first absorbent layer disposed on the top sheet side; a second absorbent layer disposed on the back sheet side; a first adhesive disposed between the first absorbent layer and the second absorbent layer, the first adhesive adhering the first absorbent layer and the second absorbent layer; a cooling agent disposed in at least the first absorbent layer; The entire absorbent body is divided into three equal parts in the lateral direction, and is divided into a central region and side regions located on both sides of the central region in the lateral direction, the cooling agent content in the side regions of the first absorbent layer is greater than the cooling agent content in the side regions of the second absorbent layer; The side regions have first non-adhesive regions where the first absorbent layer and the second absorbent layer are not adhered by the first adhesive. Absorbent articles.
2. the first absorbent layer and the second absorbent layer are each formed of a single absorbent sheet folded back toward the non-skin side at a side end portion, which is an end portion in the lateral direction of the absorbent body; the first adhesive is disposed in at least the central region; The cooling agent content in the side regions is greater than the cooling agent content in the central region. The absorbent article of claim 1.
3. The absorbent sheet has protrusions and recesses extending in the transverse direction. The absorbent article of claim 2.
4. The cooling sensation agent content of the first absorbent layer is 2.0 times or less the cooling sensation agent content of the second absorbent layer. The absorbent article according to claim 2 or 3.
5. the cooling agent content in the central region of the first absorbent layer is greater than the cooling agent content in the side regions of the first absorbent layer; The cooling agent content in the central region of the second absorbent layer is less than the cooling agent content in the side regions of the second absorbent layer. The absorbent article according to claim 2 or 3.
6. the first absorbent layer has a cooling sensation agent content that gradually decreases from the central region toward the side end portions of the side regions, In the second absorbent layer, the cooling sensation agent content gradually decreases from the side end portions of the side regions toward the central region. The absorbent article of claim 5.
7. In the central region of the second absorbent layer, a pair of sheet side edges, which are edges in the lateral direction of the absorbent sheet in an unfolded state, overlap in the thickness direction. The absorbent article of claim 5.
8. The central region has a second non-adhesive region at a longitudinal end portion, 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.
9. The absorbent body is a second adhesive disposed on the skin-facing surface of the first absorbent layer in the central region; The maximum dimension in the lateral direction of the second adhesive placement area in which the second adhesive is placed is smaller than the maximum dimension in the lateral direction of the first adhesive placement area in which the first adhesive is placed. The absorbent article according to claim 1 or 2.