Shorts-type absorbent items

Abstract

The present invention provides a shorts-type absorbent article that can provide the wearer with appropriate stimulation. A shorts-type absorbent article (1) has an absorbent body (20) and a waist member (10) configured to overlap the non-skin side of the absorbent body (20), wherein the absorbent body (20) and the waist member (10) are provided with a warming agent or a cooling agent (26, 27), and when the wearer wears the shorts-type absorbent article (1), the intensity of the warming agent or the cooling agent (27) of the absorbent body (20) is different from the intensity of the warming agent or the cooling agent (26) of the waist member (10).

Description

Technical Field

[0001] This invention relates to a shorts-type absorbent article. Background Technology

[0002] Shorts-type absorbent articles (hereinafter also simply referred to as absorbent articles) are known to contain substances such as fragrances and warming / cooling agents that cause irritation to the wearer when worn. For example, Patent Document 1 discloses a technique that reduces unpleasant odors originating from excrement by providing fragrances on the outer or inner surface of the waist area 10 corresponding to the wearer's waist circumference.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2018-102612 Summary of the Invention

[0006] The problem the invention aims to solve

[0007] However, when wearing absorbent shorts, it can sometimes be difficult to provide the wearer with adequate stimulation. For example, areas of the wearer's body with more fat (such as the waist) and areas with less fat (such as the area around the vaginal opening) may react differently to temperature-sensitive agents. Therefore, it's possible for stimulation to be too weak in areas with more fat and too strong in areas with less fat. Additionally, the sensation of stimulation can vary depending on the wearer's posture. For instance, the way body pressure is applied differs between lying on one's back and lying on one's stomach, resulting in different sensations in the waist and groin areas. Therefore, it can also be difficult to provide the wearer with adequate stimulation in such situations.

[0008] The present invention was made in view of the above-mentioned problems, and its object is to provide a shorts-type absorbent article that can make the wearer feel appropriate stimulation.

[0009] Solution for solving the problem

[0010] The main invention for achieving the above-mentioned objective is a shorts-type absorbent article, characterized in that the shorts-type absorbent article has intersecting vertical and horizontal directions, and the shorts-type absorbent article has: an absorbent body with liquid absorption; and a waist member configured to overlap the non-skin side of the absorbent body, wherein the absorbent body and the waist member are provided with a temperature-sensitive agent or a cooling agent, and when the wearer wears the shorts-type absorbent article, the perceived intensity of the temperature-sensitive agent or the cooling agent in the absorbent body is different from the perceived intensity of the temperature-sensitive agent or the cooling agent in the waist member.

[0011] Other features of the invention will become apparent from the description in this specification and the accompanying drawings.

[0012] The effects of the invention

[0013] According to the present invention, it is possible to provide a shorts-type absorbent article that can provide the wearer with appropriate stimulation. Attached Figure Description

[0014] Figure 1 This is a schematic three-dimensional diagram of absorbent item 1, which is a type of shorts.

[0015] Figure 2 These are top views and cross-sectional views of the shorts-shaped absorbent item 1 in its unfolded and extended state.

[0016] Figure 3 This is a top view of the absorbent body 20.

[0017] Figure 4 It shows Figure 3 A cross-sectional schematic diagram of the absorbent body 20 with section AA.

[0018] Figure 5 This is a diagram illustrating the configuration of temperature-sensitive agents 26 and 27 in the absorbent article 1 in its unfolded and elongated state.

[0019] Figure 6 This diagram illustrates the positional relationship between the wearer's body and the temperature sensors 26 and 27 when wearing absorbent material 1 in a shorts-like state.

[0020] Figure 7 This is a schematic diagram showing how the shorts-type absorbent item 1 is folded.

[0021] Explanation of reference numerals in the attached figures

[0022] 1: Absorbent material (shorts-type absorbent material); 1a: Waist opening; 1b: Leg opening; 10: Waist component; 10f: Front waist component; 10fe: Front joint; 10ff: Front end of waist; 10b: Rear waist component; 10be: Rear joint; 10bf: Rear end of waist; 10et: Upper end; 10gm: Elastic band at the opening (elastic component); 10L: Left side protrusion; 10R: Right side protrusion; 12: Stretch sheet (diaphragm); 12f: Front stretch sheet; 12b: Rear stretch sheet; 14: Low stretch sheet; 15: Cushioning sheet; 15p: Printed area; 20: Absorbent body; 22: Absorbent core; 22a: Core covering sheet; 24: Skin side sheet; 25: Non-skin side sheet; 25a: Liquid-impermeable sheet; 25b: Water-repellent sheet; 26: Temperature-sensitive agent (cooling agent); 26m: Temperature-sensitive agent (cooling agent); 27: Temperature-sensitive agent (cooling agent); 27f: Temperature-sensitive agent (cooling agent); 27b: Temperature-sensitive agent (cooling agent); 28: Weakly tactile area; 30: Crotch elastic band; 40: Hinge; 50: Three-dimensional pleats; 51: Three-dimensional pleat elastic component; CL: Center line; YS: Ultrasonic joint; ZS: Ultrasonic joint. Detailed Implementation

[0023] Based on the description in this specification and the accompanying drawings, at least the following matters can be clarified.

[0024] A shorts-type absorbent article, characterized in that the shorts-type absorbent article has intersecting vertical and horizontal directions, the shorts-type absorbent article has: an absorbent body with liquid absorption; and a waist member configured to overlap the non-skin side of the absorbent body, wherein the absorbent body and the waist member are provided with a temperature-sensitive agent or a cooling agent, and when the wearer wears the shorts-type absorbent article, the perceived intensity of the temperature-sensitive agent or the cooling agent in the absorbent body is different from the perceived intensity of the temperature-sensitive agent or the cooling agent in the waist member.

[0025] Based on such shorts-shaped absorbent items, different stimuli (warming effects, cooling effects) can be applied to different parts of the wearer's body. For example, by adjusting the intensity of the warming agent (cooling agent) according to the amount of fat in different parts of the wearer's body and the assumed posture of the wearer when wearing the garment, the wearer can feel appropriate stimulation.

[0026] As a shorts-type absorbent article, it is desirable that the absorbent body has a liquid-impermeable sheet, the temperature-sensitive agent or the cooling agent is a volatile substance, and the temperature-sensitive agent or the cooling agent is provided in the thickness direction of the absorbent body at a position closer to the skin than the liquid-impermeable sheet.

[0027] In this type of shorts-shaped absorbent garment, the evaporated warming agent (or cooling agent) is less likely to penetrate the non-skin side of the absorbent body and easily diffuses towards the skin. Therefore, the evaporated warming agent easily reaches the wearer's body, providing appropriate stimulation to the area around the vaginal opening.

[0028] As a shorts-type absorbent article, it is desirable that the perceived intensity of the temperature-sensitive agent or the cooling agent in the waistband component is stronger than that in the absorbent body.

[0029] This type of absorbent garment, resembling shorts, allows the wearer to easily feel appropriate stimulation around the waist where there is more fat, while minimizing excessive stimulation around the vaginal opening where there is less fat. Therefore, as an absorbent garment as a whole, it provides the wearer with appropriate stimulation (warming or cooling effects).

[0030] As a shorts-type absorbent article, it is desirable that the waist member has a front waist member and a rear waist member, wherein the perceived intensity of the temperature-sensitive agent or the cooling agent of the front waist member is stronger than the perceived intensity of the temperature-sensitive agent or the cooling agent at a position further forward than the center position in the length direction of the absorbent body in the unfolded state.

[0031] Based on this type of shorts-shaped absorbent garment, when the wearer is seated, the front waist component is less likely to press against the wearer's body. Therefore, by making the intensity of the warming agent in the front waist area stronger, it is easier for the wearer to feel appropriate stimulation. Furthermore, the absorbent body easily presses against the wearer's groin area; therefore, by making the intensity of the warming agent weaker around the lower abdomen (vaginal opening), excessive stimulation can be suppressed. Thus, an appropriate warming (or cooling) effect can be achieved for the wearer around the waist and vaginal opening.

[0032] As a shorts-type absorbent article, it is desirable that the waist member has a front waist member and a rear waist member, wherein the perceived intensity of the temperature-sensitive agent or the cooling agent of the rear waist member is stronger than the perceived intensity of the temperature-sensitive agent or the cooling agent at a position further forward than the center position in the length direction of the absorbent body in the unfolded state.

[0033] Based on this type of shorts-shaped absorbent garment, when the wearer is in a prone position, the rear waist component is less likely to press against the wearer's body. Therefore, by applying a stronger intensity of the warming agent in the rear waist area, it is easier for the wearer to feel appropriate stimulation. Conversely, the absorbent body easily presses against the wearer's lower abdomen, so by applying a weaker intensity of the warming agent around the vaginal opening, excessive stimulation can be prevented. Thus, an appropriate warming (or cooling) effect can be achieved for the wearer around the waist and vaginal opening.

[0034] As a shorts-type absorbent article, it is desirable that the waist member has a front waist member and a rear waist member, wherein the perceived intensity of the temperature-sensitive agent or the cooling agent of the front waist member is stronger than the perceived intensity of the temperature-sensitive agent or the cooling agent at a position further back from the center position in the length direction of the absorbent body in the unfolded state.

[0035] Based on this type of shorts-shaped absorbent garment, when the wearer is in a supine position, the front waist component is less likely to press against the wearer's body. Therefore, by making the intensity of the warming agent stronger in the front waist area, it is easier for the wearer to feel appropriate stimulation. Furthermore, in the wearer's groin area, the evaporated warming agent easily reaches the area around the vaginal opening through the gluteal fold to provide stimulation. Therefore, by making the intensity of the warming agent weaker, excessive stimulation can be prevented. Thus, an appropriate warming (or cooling) effect can be achieved in the waist area and around the vaginal opening.

[0036] As a shorts-type absorbent article, it is desirable that the waist member has a front waist member and a rear waist member, wherein the perceived intensity of the temperature-sensitive agent or the cooling agent of the rear waist member is stronger than the perceived intensity of the temperature-sensitive agent or the cooling agent at a position further back from the center position in the length direction of the absorbent body in the unfolded state.

[0037] Based on this type of shorts-shaped absorbent garment, when the wearer is in a prone position, the rear waist component is less likely to press against the wearer's body. Therefore, by making the intensity of the warming agent stronger in the rear waist area, it is easier for the wearer to feel appropriate stimulation. Furthermore, in the wearer's groin area, the evaporated warming agent easily reaches the area around the vaginal opening through the gluteal fold to provide stimulation. Therefore, by making the intensity of the warming agent weaker, excessive stimulation can be prevented. Thus, an appropriate warming (or cooling) effect can be achieved in the waist area and around the vaginal opening.

[0038] As a shorts-type absorbent article, it is desirable that the waist member has a front waist member and a rear waist member, and that the perceived intensity of the temperature-sensitive agent or the cooling agent at the position forward of the center position in the longitudinal direction of the absorbent body in the unfolded state is stronger than the perceived intensity of the temperature-sensitive agent or the cooling agent at the front waist member.

[0039] Based on this type of shorts-shaped absorbent garment, when the wearer is in a prone position, the front waist component easily presses against the wearer's body. Therefore, even if the intensity of the heat-sensitive agent is relatively weak in the front waist area, the wearer can easily feel stimulation. Furthermore, the absorbent body presses against the wearer's abdomen, leaving excess fabric at the crotch area, which easily creates a gap (space) between the wearer's groin and the absorbent body, making it difficult for the heat-sensitive agent to come into contact with the wearer's groin. Therefore, by making the intensity of the heat-sensitive agent on the front of the absorbent body stronger, appropriate stimulation can be easily applied to the area around the vaginal opening. This allows the wearer to experience a suitable warming (or cooling) effect.

[0040] As a shorts-type absorbent article, it is desirable that the waist member has a front waist member and a rear waist member, and that the perceived intensity of the heat-sensing agent or the cooling agent at the position forward of the center position in the longitudinal direction of the absorbent body in the unfolded state is stronger than the perceived intensity of the heat-sensing agent or the cooling agent at the rear waist member.

[0041] Based on this type of shorts-shaped absorbent garment, when the wearer is in a supine position, the rear waist component easily presses against the wearer's body. Therefore, even if the intensity of the heat-sensitive agent is weaker in the rear waist area, the wearer can still easily feel stimulation. Furthermore, the absorbent body presses against the wearer's buttocks, leaving excess fabric at the crotch area, which easily creates a gap (space) between the wearer's groin and the absorbent body, making it difficult for the heat-sensitive agent to come into contact with the wearer's groin. Therefore, by making the intensity of the heat-sensitive agent stronger on the front of the absorbent body, appropriate stimulation can be easily applied to the area around the vaginal opening. This allows the wearer to experience a suitable warming (or cooling) effect.

[0042] As a shorts-type absorbent article, it is desirable that the waist member has a front waist member and a rear waist member, and that the perceived intensity of the heat-sensing agent or the cooling agent at a position further back from the center position in the length direction of the absorbent body in the unfolded state is stronger than the perceived intensity of the heat-sensing agent or the cooling agent at the front waist member.

[0043] Based on this type of shorts-shaped absorbent garment, when the wearer is in a prone position, the front waist component easily presses against the wearer's body. Therefore, even if the intensity of the warming agent in the front waist area is relatively weak, the wearer can easily feel stimulation. Furthermore, the rear area of ​​the absorbent body is relatively far from the wearer's vaginal opening, making it difficult to apply the warming agent to the area around the vaginal opening. Therefore, by making the intensity of the warming agent on the rear of the absorbent body stronger, it is easier to apply appropriate stimulation to the area around the wearer's vaginal opening. Thus, the wearer can experience a suitable warming (or cooling) effect.

[0044] As a shorts-type absorbent article, it is desirable that the waist member has a front waist member and a rear waist member, and that the perceived intensity of the heat-sensing agent or the cooling agent at the position behind the center position in the longitudinal direction of the absorbent body in the unfolded state is stronger than the perceived intensity of the heat-sensing agent or the cooling agent at the rear waist member.

[0045] Based on this type of shorts-shaped absorbent garment, when the wearer is in a supine position, the rear waist component easily presses against the wearer's body. Therefore, even if the intensity of the warming agent in the rear waist area is relatively weak, the wearer can easily feel stimulation. Furthermore, the rear area of ​​the absorbent body is relatively far from the wearer's vaginal opening, making it difficult to apply the warming agent to the area around the vaginal opening. Therefore, by making the intensity of the warming agent on the rear of the absorbent body stronger, it is easier to apply appropriate stimulation to the area around the wearer's vaginal opening. Thus, the wearer can experience a suitable warming (or cooling) effect.

[0046] As a shorts-type absorbent article, it is desirable that the temperature-sensitive agent or the cooling agent is a volatile substance, the absorbent body has an absorbent core containing a liquid absorbent raw material, and when viewed along the thickness direction of the absorbent body, the temperature-sensitive agent or the cooling agent is provided in at least a portion of the area overlapping with the absorbent core.

[0047] In this type of shorts-shaped absorbent garment, a portion of the temperature-sensing agent easily penetrates into the liquid absorbent material contained in the absorbent core, and the penetrated temperature-sensing agent gradually evaporates from the absorbent core. Therefore, when wearing the absorbent garment, the temperature-sensing agent gradually seeps out from the absorbent core, making it easier to maintain the temperature-sensing effect for a long time.

[0048] As a shorts-type absorbent article, it is desirable that the perceived intensity of the temperature-sensitive agent or the cooling-sensitive agent located in the longitudinal direction of the absorbent body in the unfolded state is stronger than that of the temperature-sensitive agent or the cooling-sensitive agent located in the rearward direction of the center position than that of the temperature-sensitive agent or the cooling-sensitive agent located in the longitudinal direction of the center position.

[0049] In this type of shorts-shaped absorbent garment, when worn, the rear area of ​​the absorbent body is farther from the wearer's vaginal opening compared to the front area. Therefore, even if the intensity of the warming agent in the rear area is weaker than that in the front area, the difference in the warming effect felt by the wearer around the vaginal opening is negligible. Thus, by making the intensity of the warming agent weaker in the rear area, the manufacturing cost of the absorbent garment can be reduced while maintaining an appropriate warming effect.

[0050] As a shorts-type absorbent article, it is desirable that, in the length direction, the length of the portion of the absorbent body that is rearward from the center position is greater than the length of the portion of the absorbent body that is forward from the center position.

[0051] In this type of shorts-shaped absorbent garment, the area with the warming agent on the front side along the length of the absorbent body is not too large, thus easily suppressing excessive stimulation of the wearer's lower abdomen. On the other hand, on the rear side along the length, the absorbent body easily comes into contact with a large area of ​​the wearer's buttocks, easily suppressing excretion leakage, and easily allowing the warming effect to be felt up to the vicinity of the wearer's sacrum.

[0052] As a shorts-type absorbent article, it is desirable that a weak-feeling area with a predetermined width in the left-right direction is provided in the central part of the absorbent body, and the feel intensity of the temperature-sensitive agent and the cooling-sensitive agent in the weak-feeling area is weaker than the feel intensity of the temperature-sensitive agent and the cooling-sensitive agent in the adjacent areas on both sides of the weak-feeling area in the left-right direction.

[0053] This type of shorts-shaped absorbent garment prevents the temperature-sensitive agent from directly contacting the vaginal opening when worn. This reduces excessive stimulation of the vaginal opening.

[0054] As a shorts-type absorbent article, it is desirable that the perceived intensity of the warming agent or the cooling agent on the skin side of the sheet member located at the closest position to the skin of the waist member is stronger than the perceived intensity of the warming agent or the cooling agent on the non-skin side of the sheet member.

[0055] Based on this type of shorts-shaped absorbent garment, the warming agent can easily come into contact with the wearer's skin around the waist area, where there is more fat and irritation is difficult to transmit, thus making it easy for the wearer to feel the warming effect.

[0056] As a shorts-type absorbent article, it is desirable that the perceived intensity of the warming agent or the cooling agent on the non-skin side of the skin side sheet located at the position closest to the skin of the absorbent body is stronger than the perceived intensity of the warming agent or the cooling agent on the skin side sheet.

[0057] Based on this type of shorts-shaped absorbent garment, the warming agent is less likely to come into direct contact with the wearer's skin around the vaginal opening, which has less fat and is more sensitive to stimulation, thus preventing excessive stimulation to the wearer.

[0058] As a shorts-type absorbent item, it is desirable that a plurality of protrusions extending along the vertical direction and protruding in the thickness direction be provided side by side on the skin side of the waist member in the left-right direction.

[0059] In this type of shorts-shaped absorbent garment, the temperature-sensitive agent located on the raised parts easily comes into contact with the wearer's skin when worn. Furthermore, the evaporated temperature-sensitive agent easily diffuses through the spaces between adjacent raised parts in the left-right direction, thus allowing the wearer to feel the temperature-sensitive effect over a larger area around the waist.

[0060] ===First Implementation Method===

[0061] As an example of the shorts-type (underwear-type) absorbent article of the first embodiment, a shorts-type absorbent article 1 (hereinafter also simply referred to as "absorbent article 1") having a temperature-sensitive agent 26 (or a cooling agent, details of which will be described later) will be described. In addition, the absorbent article 1 for physiological use will be described in the following description, but the absorbent article 1 of this embodiment also includes adult diapers, baby diapers, etc., and its use is not limited to physiological use.

[0062] <Basic Structure of Absorbent Item 1>

[0063] Figure 1 This is a schematic 3D diagram of absorbent item 1, which is in the shape of shorts. Figure 2 These are top views and cross-sectional views of the shorts-type absorbent article 1 in its unfolded and extended state. The absorbent article 1 of this embodiment includes a waist member 10 and an absorbent body 20.

[0064] exist Figure 1 In the shorts-style configuration shown, the absorbent item 1 has intersecting "up-down," "left-right," and "back-forward" directions. Additionally, [the following text appears to be unrelated and possibly machine-generated: "will..."] Figure 1The vertical direction is set as up and down, and the top (bottom) side is set as "up" ("down") in the up and down direction. The horizontal direction is set as left and right, and the left (right) side is set as left (right) in the left and right direction. In addition, in the front and back direction, the side that is located on the wearer's abdomen when wearing the garment is set as "front side", and the side that is located on the wearer's back is set as "back side".

[0065] exist Figure 2 In the unfolded state of the absorbent article 1 shown (the state in which the shorts-type absorbent article 1 is expanded on a plane before being shaped into shorts), the absorbent article 1 has intersecting "length direction," "width direction," and "thickness direction." The length direction is along the aforementioned vertical direction. Figure 2 In this design, one side along the length direction is designated as the "front (abdominal) side," and the other side as the "back (rear) side." The width direction follows the aforementioned left-right direction. Additionally, the direction orthogonal to the length and width directions (the direction penetrating the paper) is designated as the thickness direction. In the thickness direction, the side that contacts the wearer's skin is designated as the "skin side," and the opposite side is designated as the "non-skin side."

[0066] Additionally, the top view of this embodiment (e.g.) Figure 2 The term "stretched state" indicates the extended state of the object. Here, "stretched state" means that the component shown in the top view is stretched to a state without wrinkles by stretching the various elastomers (e.g., the stretchable sheet 12 described later) of the absorbent article 1. For example, in Figure 2 In the context of "stretching," the term refers to the state in which the dimensions of the waist member 10 and the absorbent body 20 constituting the absorbent article 1 are the same as or close to the dimensions of the individual member. Furthermore, the state in which the elastic body naturally contracts and wrinkles or other structures form in the individual members, and which is not stretched, is called the "natural state."

[0067] (Waist component 10)

[0068] The waist component 10 is the outer packaging body that constitutes the outer packaging of the absorbent article 1. For example... Figure 2 As shown, the waist member 10 of this embodiment has a roughly hourglass shape when viewed from above in its unfolded state. That is, the central portion in the length direction is recessed inward in the width direction, and this recessed portion is formed when molded into a shorts shape. Figure 1 The pair of leg openings 1b shown.

[0069] Additionally, the waist member 10 has a front waist member 10f located forward of the centerline CL of the absorbent article 1 in the length direction and a rear waist member 10b located backward. Furthermore, in this embodiment, in... Figure 2In the middle, the range shown by the front waist member 10f (the range on the ventral side from the center line CL to the front end (upper end 10et) of the shorts-type absorbent article 1) is the ventral side, and the range shown by the rear waist member 10b (the range on the back side from the center line CL to the rear end (upper end 10et) of the shorts-type absorbent article 1) is the back side.

[0070] The front waist member 10f has a waist front end portion 10ff extending in the width direction at the front end and front joint portions 10fe extending in the length direction at both ends on the left and right sides. Figure 2 The rear waist member 10b has a rear waist end portion 10bf extending in the width direction at the rear end and a rear joint portion 10be extending in the length direction at both ends on the left and right sides. Figure 2 (The diagonal line in the middle that slopes downwards to the right).

[0071] Furthermore, the waist member 10 of this embodiment includes: a low-elasticity sheet 14, which forms the shape of the waist member 10 and has almost no elasticity in the lateral direction; and elastic sheets 12 (front elastic sheet 12f and rear elastic sheet 12b), which are stacked on a portion of the skin side of the low-elasticity sheet 14 and have elasticity in the lateral direction. Additionally, the waist member 10 also includes a cushioning sheet 15, different from the elastic sheet 12 and the low-elasticity sheet 14, at the position closest to the skin on the front waist member 10f. The cushioning sheet 15 is configured to cover the front end 20et (i.e., the edge of the upper front end of the absorbent body 20) in the length direction from the skin side in the thickness direction, thereby suppressing strong contact between the front end 20et and the wearer's skin.

[0072] The low-stretch sheet 14 is formed, for example, from hot-air nonwoven fabric or spunbond nonwoven fabric. In addition, a portion of the low-stretch sheet 14 is folded back and joined inward in the length direction and to the skin side in the thickness direction at its upper end 10et. The folded portion on the front (rear) side forms the aforementioned waist front end 10ff (waist rear end 10bf) at the front end (rear end).

[0073] Additionally, at the front end 10ff and the rear end 10bf of the waistband, elastic bands 10gm (equivalent to elastic members) that extend and retract in the left-right direction are attached to the inside of their respective folded portions using adhesive. That is, an elastic band 10gm extending in the left-right direction is provided at the upper end of the waistband member 10, and the elastic band 10gm is attached to the upper end of the waistband member 10 using adhesive. Furthermore, in this embodiment, "upper end" refers to the uppermost portion when the shorts-type absorbent article 1 is divided into four equal parts in the vertical direction. Figure 2The portion of UA shown, or the portion located approximately 30mm from the top in the vertical direction (the portion that is grasped by hand when worn to stretch in the horizontal direction), and the portion whose horizontal stretching force (tightening force toward the wearer) is greater than the stretching force of the central portion of the waist member 10 in the vertical direction.

[0074] In addition, in this embodiment, an open elastic band 10gm is provided at the front end 10ff and the rear end 10bf of the waist, but it is not limited to this. For example, a strip-shaped stretchable component, such as stretchable nonwoven fabric or stretch film, can also be provided.

[0075] The stretchable sheet 12 has a front stretchable sheet 12f provided on the front waist member 10f and a rear stretchable sheet 12b provided on the rear waist member 10b. In this embodiment, the stretchable sheet 12 is a stretchable film (for example, a sheet-like stretchable member formed by melting an elastomer resin such as polyurethane or styrene to a uniform thickness, equivalent to a diaphragm), which has higher airtightness compared to a stretchable nonwoven fabric sheet. By providing a stretchable sheet 12 with higher airtightness in the waist portion 10, the volatilized temperature-sensing agent 26 is suppressed from escaping from the skin side to the non-skin side, thus enabling a sustained temperature-sensing effect.

[0076] Furthermore, from an airtightness perspective, the stretchable sheet 12 could be positioned closest to the skin. However, when using a stretch film, even if the temperature-sensitive agent 26 is directly applied to the stretch film, the retention of the temperature-sensitive agent 26 is poor. In addition, the skin feel is unpleasant when the stretch film comes into contact with the body. Therefore, it is desirable to have at least one sheet component (low-stretch sheet 14, cushioning sheet 15) between the stretchable sheet 12 and the wearer's skin.

[0077] Alternatively, the stretchable sheet 12 in this embodiment can be replaced by a stretchable nonwoven fabric sheet mixed with polyurethane (e.g., a stretchable nonwoven fabric sheet mixed with stretchable fibers that are a thermoplastic elastomer). This sheet has higher air tightness compared to a nonwoven fabric sheet without polyurethane (e.g., a 100% polypropylene nonwoven fabric sheet), thus achieving the same effect as the stretchable film (continuous temperature-sensing effect). That is, the waist member 10 includes at least one sheet material selected from a nonwoven fabric sheet mixed with polyurethane and a stretchable film.

[0078] The buffer sheet 15 is formed, for example, from hot air nonwoven fabric, spunbond nonwoven fabric, SMS nonwoven fabric, etc., and is arranged along the left-right direction in such a way that it is located at the position closest to the skin in the thickness direction and crosses the outer end 20et of the front side of the absorbent body 20 in the vertical direction (length direction).

[0079] Furthermore, the buffer sheet 15 has a printing area 15p on which patterns (text, symbols, images, colors, etc., with an appearance different from the surrounding pattern) are printed along the left-right direction. That is, the front waist member 10f has a printing area 15p on which the pattern is printed. In addition, in order to avoid problems such as pattern bleeding during printing (for ease of printing), the printing area 15p is treated with a substrate, and the airtightness from the skin side to the non-skin side is higher than that of the untreated area. As a substrate treatment method, well-known corona discharge treatment can be exemplified, for example.

[0080] Furthermore, a temperature-sensitive agent 26 is provided on the buffer sheet 15 of the absorbent article 1, as will be described in detail later. In this embodiment, the temperature-sensitive agent 26 is applied to a predetermined area on the skin side in the thickness direction of the buffer sheet 15. Additionally, when the temperature-sensitive agent 26 is applied to the skin side of the buffer sheet 15, it is desirable that the printing area 15p is located on the non-skin side. If a high concentration of the temperature-sensitive agent 26 comes into direct contact with the ink forming the printing area 15p, the ink may dissolve; therefore, by setting this positional relationship, it is possible to prevent the dissolved substances from adhering to the body.

[0081] Alternatively, in the front waist member 10f, the buffer plate 15 can be omitted, and the folded-back extension of the low-elasticity plate 14 can be extended. That is, it can also be done as follows: Figure 2 Similar to the rear fold of the low-elasticity sheet 14 shown, the front fold overlaps with the front end 20et (upper front end) of the absorbent body 20 to form a folded portion, thereby mitigating the strong contact between the front end 20et of the absorbent body 20 and the wearer's skin. In this case, by providing a printed area 15p and a temperature-sensitive agent 26 in the folded portion, the same effect as the aforementioned cushioning sheet 15 can be obtained.

[0082] The stretchable sheet 12 and the low-stretchable sheet 14 are joined together in an overlapping state along the thickness direction. This joining is achieved by ultrasonic bonding (ultrasonic sealing) through the application of ultrasonic vibration and pressure, forming a plurality of dispersed ultrasonic bonding portions. The ultrasonic bonding portions of the low-stretchable sheet 14 melt to form a film, thus, compared to the low-stretchable sheet 14 without ultrasonic bonding portions, it is possible to suppress the evaporation of the volatilized temperature-sensitive agent 26 from the skin side to the non-skin side (improving airtightness), allowing the temperature-sensing effect to be sustained. Furthermore, the ultrasonic bonding portions in this embodiment are not formed as identical ultrasonic bonding portions, but rather as… Figure 2 The enlarged view of the Y-section shows the ultrasonic joint YS and Figure 2 The enlarged view of the Z section shows the ultrasonic joint ZS, which will be described in detail later.

[0083] On the other hand, unlike the stretchable sheet 12 and the low-stretchable sheet 14, the buffer sheet 15 is bonded using an adhesive. Furthermore, the area coated with this adhesive is the central portion of the non-skin side of the buffer sheet 15 in the vertical direction, and when viewed per unit area, it is larger than the area of ​​the ultrasonic bonding portions YS and ZS. That is, when viewed along the front-to-back direction, the area coated with adhesive per unit area of ​​the buffer sheet 15 is larger than the area of ​​the ultrasonic bonding portions YS and ZS per unit area of ​​the multiple sheets (stretchable sheet 12 and low-stretchable sheet 14).

[0084] The adhesive of the buffer sheet 15 solidifies to form a layer with high airtightness. Therefore, by making the adhesive coating area larger than the area of ​​the ultrasonic joints YS and ZS, compared to the case where the adhesive coating area is smaller than the area of ​​the ultrasonic joints YS and ZS, the evaporation of the volatile temperature-sensing agent 26 from the skin side to the non-skin side can be suppressed, and the temperature-sensing effect can be sustained. In addition, the ultrasonic joints YS and ZS melt to form a film with low elasticity. Therefore, by making the area of ​​the ultrasonic joints YS and ZS smaller than the area of ​​the adhesive coating, compared to the case where the area of ​​the ultrasonic joints YS and ZS is larger than the area of ​​the adhesive coating, the elasticity of the waist member 10 can be increased, thereby improving the fit and achieving a comfortable wearing experience.

[0085] Furthermore, the stretchable sheet 12 stretches, but the low-stretch sheet 14 does not, thus forming regular convex folds with cavities inside on the non-skin side of the low-stretch sheet 14. Here, when the stretchable sheet 12 is a stretchable nonwoven fabric (a breathable component), the vaporized temperature-sensitive agent 26 passes through the stretchable nonwoven fabric and remains in the cavity portion inside the aforementioned folds. In this way, for example, if the cavity portion inside the folds shrinks with body movement, a portion of the vaporized temperature-sensitive agent 26 held in the cavity portion moves inward through the stretchable nonwoven fabric. That is, the vaporized temperature-sensitive agent 26 moves towards the skin side, thus making it easier to feel the temperature-sensitive agent 26.

[0086] (Absorbent Subject 20)

[0087] Figure 3 This is a top view of the absorbent body 20. Figure 4 It shows Figure 3 A cross-sectional schematic diagram of the absorbent body 20 with section AA.

[0088] The absorbent body 20 is a liquid-absorbing component used to absorb menstrual blood and other excretory fluids, such as... Figure 3As shown, the absorbent body 20 has a generally rectangular shape when viewed from above, extending along its length (i.e., the long side direction of the absorbent body 20) in its unfolded and elongated state. The absorbent body 20 has an absorbent core 22, a skin-side sheet 24 positioned closer to the skin than the absorbent core 22, and a non-skin-side sheet 25 positioned closer to the non-skin than the absorbent core 22. Additionally, a temperature-sensitive agent 27 is provided in a predetermined area of ​​the absorbent body 20.

[0089] The absorbent core 22 is formed from liquid absorbent raw material into a predetermined shape; in this embodiment, it is formed into a roughly rectangular shape when viewed from above. Figure 3 The oblique section), when viewed in section, appears as a convex shape. Figure 4 (The slashed portion). As a liquid absorbent material, examples include liquid absorbent materials containing highly absorbent polymers (so-called SAP) in liquid absorbent fibers such as pulp fibers. In addition, the absorbent core 22 can also be covered with a liquid-permeable sheet component (core-covered sheet 22a) such as cotton paper or non-woven fabric.

[0090] The skin-permeable side panel 24 is a liquid-permeable sheet component that comes into contact with the wearer's skin during wear, and is formed, for example, from hydrophilic hot-air nonwoven fabric, spunbond nonwoven fabric, etc. Furthermore, the skin-permeable side panel 24 can also have a structure of two or more layers. For example, a second sheet component with approximately the same function and structure as the skin-permeable side panel can be provided on the non-skin side of the skin-permeable side panel 24 (in...). Figure 4 (Not shown in the image).

[0091] The non-skin side sheet 25 is formed with a double-layer structure comprising an impermeable sheet 25a for preventing leakage of menstrual blood and other excretory fluids absorbed by the absorbent core 22 to the outside, and a water-repellent sheet 25b disposed on the non-skin side of the impermeable sheet 25a. The impermeable sheet 25a may be a resin film such as a polyethylene film or a polypropylene film, and the water-repellent sheet 25b may be a soft non-woven fabric. Furthermore, the size of both the skin side sheet 24 and the non-skin side sheet 25 is the same size that covers the entire absorbent core 22.

[0092] The water-repellent sheet 25b in the non-skin side sheet 25 has a protrusion 25c extending in the width direction to a position further outward than the two ends 20es of the absorbent body 20. The protrusion 25c bends towards the skin side in the thickness direction at both ends 20es in the width direction of the absorbent body 20, with fulcrum 50B as the bending starting point, and folds back towards the non-skin side at the apex 50S located closer to the skin side than the skin side sheet 24, thereby forming a three-dimensional pleat 50 (see reference). Figure 5A three-dimensional pleated elastic member 51, such as a rubber band, extending along the length of the absorbent body 20, is positioned at the apex 50S of the three-dimensional pleat 50 in a length-extended state. When the absorbent article 1 is worn, the apex 50S rises towards the wearer's skin under the contractile force exhibited by the three-dimensional pleated elastic member 51. Thus, the three-dimensional pleat 50 functions as a leak-proof wall to suppress side leakage of excrement and the like.

[0093] Furthermore, to prevent the temperature-sensitive agent 27 from leaking outwards, the three-dimensional pleats 50 are preferably made of the same number of nonwoven fabric sheets from the pivot point 50B to the apex 50S, specifically, preferably two or more sheets. Additionally, to prevent the temperature-sensitive agent from leaking outwards, the density of the nonwoven fabric in the three-dimensional pleats 50 is preferably greater than the density of the nonwoven fabric in the skin-side panel 24.

[0094] Additionally, on the non-skin side of the absorbent core 22, in the thickness direction, a plurality of elastic bands 30 capable of stretching along the length direction are provided at a predetermined position between the liquid-impermeable sheet 25a and the water-repellent sheet 25b. For example... Figure 3 and Figure 4 As shown, the crotch elastic band 30 is located at the center of the absorbent body 20 in the left-right direction (width direction), extending from the front side that abuts against the lower abdomen through the crotch area to the rear side that abuts against the buttocks.

[0095] Furthermore, multiple hinge portions 40 are formed on the skin side of the absorbent body 20 (absorbent core 22). The hinge portions 40 are configured to cause the absorbent body 20 to deform along the wearer's body (forming deformed creases) when the wearer wears the absorbent item 1, such as... Figure 4 As shown, on the skin side of the absorbent body 20 (absorbent core 22), a concave shape is formed that is recessed from the skin side to the non-skin side. The concave shape of the hinge portion 40 is, for example, a compression portion formed by compressing the absorbent body 20 (absorbent core 22) from the skin side, becoming a high-density portion where the density of the absorbent core 22 is higher than the density of its surroundings.

[0096] In the absorbent body 20, a temperature-sensitive agent 27, which is a volatile substance, is provided in the thickness direction between the skin-side sheet 24 and the absorbent core 22. In this embodiment, the temperature-sensitive agent 27 is applied to a predetermined area on the non-skin-side surface of the skin-side sheet 24. Additionally, a weak-sensory area 28 with a predetermined width in the left-right direction is provided in the central portion of the absorbent body 20 in the width direction. Details regarding the temperature-sensitive agent 27 and the weak-sensory area 28 will be explained later.

[0097] Furthermore, the temperature-sensitive agent 27 is preferably configured not to be mixed with adhesives used for bonding various components. For example, if the adhesive used to bond the crotch elastic band 30 is mixed with the temperature-sensitive agent 27, the bonding strength of the crotch elastic band 30 will be reduced, and it may not be able to exert its original elastic effect. Therefore, in areas where the temperature-sensitive agent 27 and the adhesive may mix, it is preferable to use other bonding methods such as ultrasonic bonding, rather than adhesive bonding, for bonding.

[0098] Absorbent Item 1 from Figure 2 Starting from the unfolded state, the front waist member 10f and the rear waist member 10b are folded together with the center line CL along the length direction as a fold line, so that the skin side of the front waist member 10f and the skin side of the rear waist member 10b face each other. The two ends in the left-right direction are joined together to form the front joint 10fe and the rear joint 10be. Thus, the front waist member 10f and the rear waist member 10b are connected to form a ring, becoming Figure 1 The shorts-shaped configuration shown has a waist opening 1a and a pair of leg openings 1b. Furthermore, the joining methods for the joints 10fe and 10be include, for example, ultrasonic bonding or bonding using adhesives, but are not limited to these; heat sealing or combinations of known joining methods may also be used.

[0099] <Regarding temperature-sensitive agents 26, 27>

[0100] Next, the temperature-sensitive agents 26 and 27 will be explained. Temperature-sensitive agents 26 and 27 are designed to alleviate menstrual cramps and coldness in the wearer. They contain a temperature-sensitive stimulant that stimulates the wearer's temperature sensation, making the stimulated wearer feel warm. The temperature-sensitive stimulant is mixed with a volatile solvent (or the temperature-sensitive stimulant is volatile). In this embodiment, temperature-sensitive agent 26 is provided in the waist member 10, and temperature-sensitive agent 27 is provided in the absorbent body 20; however, both can be the same type of temperature-sensitive agent or different types.

[0101] From the perspective of the wearer's sense of security, warming stimulants are preferably plant-derived compounds. Examples of warming stimulants include capsaicin, capsaicin (LD50: 47 mg / kg, molecular weight: 305), capsaicinoids (dihydrocapsaicin, nordihydrocapsaicin, homodihydrocapsaicin, homocapsaicin, novanillin, etc.), capsanthin, benzyl nicotinate (LD50: 2,188 mg / kg, molecular weight: 213), β-butoxyethyl nicotinate, N-acetylvanillamide, nonanoic vanillamide, polyols, chili powder, chili tincture, chili extract, nonanoic vanillyl ether, and vanillyl alcohol alkyl ether derivatives. Vanillin (e.g., vanillin ethyl ether, vanillin butyl ether (LD50: 4,900 mg / kg, molecular weight: 210), vanillin pentyl ether, vanillin hexyl ether), isovanillin alkyl ether, ethylvanillin alkyl ether, resveratrol derivatives, substituted benzyl alcohol derivatives, substituted benzyl alcohol alkyl ethers, vanillin propylene glycol acetal, ethyl vanillin propylene glycol acetal, ginger extract, ginger oil, gingerol (LD50: 250 mg / kg, molecular weight: 294), gingerone, hesperidin, pyrrolidone carboxylic acid, and any combination thereof.

[0102] Furthermore, the thermosensitive stimulant used in this embodiment activates TRPV1, one of the temperature-sensitive TRP channels, by stimulating it; such stimulants include capsaicin and vanillin. That is, by activating the wearer's TRPV1, the wearer develops heat (generating heat within the wearer's body) through the sympathetic nervous system.

[0103] In other words, unlike portable disposable hand warmers that generate heat themselves to warm the wearer, this product, like capsaicin, warms the wearer without generating heat itself. Therefore, the wearer can feel cool and warm without experiencing low-temperature burns or scalds.

[0104] There are no particular limitations on the solvent as long as it can contain the temperature-sensitive stimulant; examples include lipophilic and hydrophilic solvents. The solvent can dissolve or disperse the temperature-sensitive stimulant. Furthermore, if the temperature-sensitive stimulant is a volatile substance, a solvent is not always necessary, and the temperature-sensitive stimulant itself can be used.

[0105] Examples of lipophilic solvents include: oils and fats, such as natural oils (e.g., fatty acid esters such as triglycerides, coconut oil, linseed oil, triglycerides (caprylic / capric acid), etc.); hydrocarbons (e.g., paraffin wax, such as liquid paraffin), etc.

[0106] Hydrophilic solvents include water and alcohols. Examples of alcohols include: lower alcohols such as methanol, ethanol, ethylene glycol, and glycerol; and higher alcohols such as octanol, lauryl alcohol, and myristol.

[0107] Furthermore, temperature-sensitive agents generally do not produce effects without contact with the wearer's skin. For example, volatile substances like fragrances can suppress surrounding odors simply by turning into a gas, but temperature-sensitive agents exert their main effect only after vaporizing and coming into direct contact with the wearer's skin. Therefore, by allowing temperature-sensitive agents 26 and 27 to come into contact with the wearer's skin through a non-woven fabric or similar material, the wearer can gradually feel the effects of temperature-sensitive agents 26 and 27 on their skin.

[0108] Furthermore, in this instruction manual, temperature-sensitive agents 26 and 27 are described as examples of volatile substances that irritate the wearer, but are not limited to temperature-sensitive agents; for example, cooling agents may also be used. When using cooling agents, the wearer's discomfort caused by stuffiness and stickiness can be reduced.

[0109] Examples of such cooling agents include menthol (e.g., L-menthol) and its derivatives (e.g., menthyl lactate), methyl salicylate, camphor, and essential oils derived from plants (e.g., peppermint, eucalyptus). Furthermore, the cooling agent is preferably a substance that stimulates temperature-sensitive TRP channels in the same way as the warming agents 26 and 27.

[0110] Alternatively, to improve the temperature sensing effect, a trace amount of a cooling agent can be mixed into the temperature sensing agent, or to improve the cooling effect, a trace amount of a temperature sensing agent can be mixed into the cooling agent, thereby improving the temperature or cooling effect.

[0111] <Regarding the formulation of temperature-sensing agents 26 and 27 (cooling agents)>

[0112] Figure 5 This is a diagram illustrating the configuration of temperature-sensitive agents 26 and 27 in the absorbent article 1 in its unfolded and elongated state. Figure 6 This is a diagram illustrating the positional relationship between the wearer's body and the temperature sensors 26 and 27 when wearing absorbent material 1 in a shorts-like state.

[0113] The temperature-sensitive agent 26 is located on the skin-side surface of the buffer sheet 15, which is positioned closest to the skin on the waist member 10 (front waist member 10f). Figure 5 As shown, a rectangular area with a predetermined length (width) W26 is coated at a position above the printing area 15p in the vertical direction (front side in the length direction). Furthermore, the temperature-sensitive agent 26, as described above, is volatile and readily permeates through the nonwoven fabric buffer sheet 15 in the thickness direction. Therefore, at least a portion of the temperature-sensitive agent 26 coated on the skin side of the buffer sheet 15 is also present on the non-skin side of the buffer sheet 15.

[0114] Additionally, the absorbent article 1 is folded in half at the center position CL in the length direction to form a... Figure 1In such a shorts design, the skin-side surface of the front waist member 10f overlaps with the skin-side surface of the rear waist member 10b in a manner opposite each other in the thickness direction. At this time, a portion of the temperature-sensitive agent 26 applied to the skin-side surface of the cushioning sheet 15 (front waist member 10f) may sometimes adhere to the rear waist member 10b. That is, on the skin-side surface of the rear waist member 10b, sometimes in the area opposite to the temperature-sensitive agent 26 applied to the cushioning sheet 15 (in... Figure 5 In the rectangular area enclosed by the dotted line, a temperature sensor is also provided. Hereinafter, the temperature sensor provided on the rear waist member 10b will be designated as temperature sensor 26m.

[0115] The area in the front waist component 10f (buffer 15) where the temperature-sensitive agent 26 is located is at a position corresponding to the wearer's iliac crest when wearing the absorbent material 1 (see reference). Figure 6 Therefore, the temperature-sensitive agent 26 can provide a temperature-sensitive effect to the periphery of the iliac crest on the wearer's ventral side. Furthermore, the area in the posterior waist member 10b where the temperature-sensitive agent 26m is located corresponds to the position of the wearer's sacrum when wearing the absorbent material 1 (see reference). Figure 6 Therefore, the 26m temperature-sensitive agent can be used to impart a temperature-sensitive effect to the area around the sacrum on the back of the wearer.

[0116] On the other hand, the temperature-sensitive agent 27 is located on the non-skin side of the skin-side sheet 24, which is positioned closest to the skin on the absorbent body 20, such as... Figure 5 As shown, the agent 27 is applied to a pair of rectangular regions having a predetermined size in the width direction (left-right direction) and extending continuously from the front end to the rear end in the length direction of the absorbent body 20. The temperature-sensitive agent 27, like the temperature-sensitive agent 26 described above, is volatile and readily permeates through the nonwoven fabric skin-side sheet 24 along its thickness direction. Therefore, at least a portion of the temperature-sensitive agent 27 applied to the non-skin side of the skin-side sheet 24 is also present on the skin side of the skin-side sheet 24.

[0117] Alternatively, the coating amount and coating concentration per unit area can be varied between the temperature-sensitive agent 27 applied in the longitudinal direction of the absorbent body 20 at a position forward of the center position CL and the temperature-sensitive agent 27 applied at a position backward of the center position CL. Hereinafter, the temperature-sensitive agent at the position forward of the center position CL in the longitudinal direction of the absorbent body 20 will be designated as temperature-sensitive agent 27f, and the temperature-sensitive agent at the position backward of the center position CL will be designated as temperature-sensitive agent 27b. Alternatively, only temperature-sensitive agent 27f may be provided in the absorbent body 20, without temperature-sensitive agent 27b.

[0118] The area in the absorbent body 20 containing the temperature-sensitive agent 27f is located at the lower abdomen in the crotch area of ​​the wearer when wearing the absorbent garment 1 (see reference). Figure 6Therefore, by using the temperature-sensitive agent 27f, a temperature-sensitive effect can be applied to the lower abdomen area of ​​the wearer (especially the area around the vaginal opening). Furthermore, the area in the absorbent body 20 where the temperature-sensitive agent 27b is located corresponds to the buttocks area of ​​the wearer's groin region when wearing the absorbent garment 1 (see reference). Figure 6 Therefore, by using the temperature-sensitive agent 27b, a temperature-sensitive effect can be applied to the area around the wearer's buttocks.

[0119] In this way, the temperature-sensitive agents 26, 26m, 27f, and 27b disposed on the absorbent article 1 can impart a temperature-sensitive effect (cooling effect) to different parts of the wearer's body. Therefore, by adjusting the coating concentration and amount of the temperature-sensitive agents 26, 26m, 27f, and 27b, the intensity of the temperature-sensitive agent (cooling agent) in the waist member 10 and the absorbent body 20 can be different when the wearer wears the absorbent article. For example, by adjusting the intensity of the temperature-sensitive agent (cooling agent) in accordance with the amount of fat in different parts of the wearer's body, the assumed posture of the wearer during wearing, and the body's activity, the wearer can feel appropriate stimulation.

[0120] <Regarding the perceived intensity of temperature-sensitive (cooling) agents>

[0121] In the absorbent article 1 of the first embodiment, the intensity of the temperature-sensitive agent 26 of the waist member 10 is adjusted to be stronger than the intensity of the temperature-sensitive agent 27 of the absorbent body 20. In other words, when wearing the absorbent article 1, the intensity of the stimulation caused by the temperature-sensitive agent felt by the wearer at the waist member 10 is greater than the intensity of the stimulation caused by the temperature-sensitive agent felt by the wearer at the absorbent body 20.

[0122] Here, the intensity of the sensory experience can be determined by performing a sensory test using the patch on multiple subjects. The sensory test is conducted, for example, by the following method.

[0123] First, a predetermined area is cut from the waist member 1 to prepare patches for sensory testing. For example, the sheet member (buffer sheet 15) located on the skin-closest side of the front waist member 10f in its unfolded and extended state is peeled off, and the portion between the front joints 10fe and 10fe on both sides in the left-right direction is divided into six equal parts and cut off to make six types of patches (front waist patches). For each patch, the skin-side and non-skin-side can be distinguished. Similarly, the sheet member (low-elasticity sheet 14) located on the skin-closest side of the rear waist member 10b in the position corresponding to the front waist member 10f is peeled off, and the portion between the rear joints 10be and 10be on both sides in the left-right direction is divided into six equal parts and cut off to make six types of patches (rear waist patches).

[0124] Next, the skin-side surfaces of the six prepared anterior waist patches are placed in contact with the inner side of the upper arm of a subject A for a predetermined time (e.g., 1 hour). Then, the intensity of the stimulation felt by subject A after the predetermined time is recorded. The intensity of the stimulation is categorized into five levels: "Level 4: Feels warm," "Level 3: Feels slightly warm," "Level 2: Feels warm in words," "Level 1: Feels nothing," and "Level 0: Feels itchy / painful." The highest rating for each of the six anterior waist patches is taken as the intensity of the heat-sensing agent 26 felt by subject A at the anterior waist component 10f (i.e., the perceived intensity). This test is conducted on multiple subjects (e.g., subjects A through F), and the average rating is calculated to determine the perceived intensity of the heat-sensing agent 26 on the anterior waist component 10f for the user of the absorbent article 1. Additionally, if necessary, the same test is performed on the non-skin-side surfaces of the six anterior waist patches to determine the perceived intensity.

[0125] Similarly, sensory tests were also conducted on 6 types of back waist patches to determine the perceived intensity of the temperature-sensitive agent 26m on the back waist component 10b by the user of the absorbent item 1.

[0126] Similarly, a sensory test was conducted on the thermosensitive agent 27 disposed on the absorbent body 20. First, the sheet component (skin-side sheet 24) located on the side closest to the skin in the expanded and stretched state of the absorbent body 20 was peeled off, and the area forward of the center position CL in the length direction was cut into three equal parts to make three types of patches (anterior absorbent patches). In addition, the area backward of the center position CL in the length direction was cut into three equal parts to make three types of patches (posterior absorbent patches). Next, the skin-side surfaces of the three types of anterior absorbent patches and the three types of posterior absorbent patches were placed in contact with the inner side of the upper arm of a subject A for a predetermined time (e.g., 1 hour). Then, the intensity of the stimulation felt by subject A after the predetermined time was recorded. In addition, the highest rating of each of the three types of anterior absorbent patches was taken as the intensity of the thermosensitive agent 27f felt by subject A on the anterior side of the absorbent body 20 (i.e., the perceived intensity). Furthermore, the highest rating of each of the three types of rear absorbent patches is taken as the degree of intensity (i.e., perceived intensity) of the temperature-sensing agent 27b felt by subject A on the rear side of the absorbent body 20. Such a test is conducted on multiple subjects (e.g., subjects A to F), and the average rating is calculated to determine the perceived intensity of the temperature-sensing agents 27f and 27b of the absorbent body by the user of the absorbent article 1.

[0127] In addition to the sensory tests described above, the perceived intensity can also be quantitatively determined by measuring the concentrations of the temperature-sensitive agents 26 and 27 applied to the waist component 10 and the absorbent body 20, respectively. For example, headspace solid-phase microextraction can be used.

[0128] First, prepare multiple patches as in the same manner as the sensory test described above to form sample patches. Next, for each sample patch, use a gas chromatography-mass spectrometry (GC-MS-QP2010Plus from Shimadzu Corporation) with helium as the carrier gas, set to scanning mode, and perform analysis using electron impact ionization. In this method, each sample patch is folded into a small roll and placed in a beaker. The top of the beaker is covered with aluminum foil, and then covered from the top with a plastic paraffin film. The sealed beaker is then placed in a 37°C constant temperature water bath. SPME fibers (Sigma-Aldrich 50 / 39μm DVB / CAR / PDMS, Stableflex 2cm) are inserted into the beaker through the aluminum foil to extract the temperature-sensitive component of each sample patch. Immediately afterwards, the SPME fibers removed from the beaker are measured using GC-MS. The resulting mass is calculated by dividing each mass by the area of ​​the sample patch. That is, the amount of temperature-sensitive agent 26 and 27 per unit area is calculated for each sample piece, thereby enabling the tactile intensity of the temperature-sensitive agent in each area of ​​the absorbent article 1 to be quantitatively determined as the amount of temperature-sensitive agent.

[0129] In the first embodiment, the temperature-sensing agent is adjusted such that the perceived intensity of the temperature-sensing agent 26 disposed on the waist member 10 is stronger than the perceived intensity of the temperature-sensing agent 27 disposed on the absorbent body 20. For example... Figure 6 As shown, the area where the temperature-sensitive agent 26 is located is in contact with a portion of the wearer's body where there is a greater amount of fat, particularly around the abdomen. Therefore, the stimulation caused by the temperature-sensitive agent 26 is difficult to transmit to the wearer. Thus, by making the tactile intensity of the temperature-sensitive agent 26 of the waist member 10 as strong as possible, even in the area of ​​the waist where there is more fat, the wearer can easily feel the appropriate stimulation.

[0130] On the other hand, the area where the temperature-sensitive agent 27 is provided is a region of the wearer's body with less fat in the groin area (especially around the vaginal opening), so the stimulation caused by the temperature-sensitive agent 27 is easily transmitted to the wearer. Assuming the intensity of the temperature-sensitive agent 27 is as strong as that of the temperature-sensitive agent 26, excessive stimulation of the area around the vaginal opening due to the temperature-sensitive agent 27 may cause discomfort to the wearer. In contrast, in the absorbent article 1 of the first embodiment, by making the intensity of the temperature-sensitive agent 27 of the absorbent body 20 less than that of the temperature-sensitive agent 26 of the waist member 10, it is difficult for the wearer to feel excessive stimulation in the area around the vaginal opening where there is less fat. Therefore, the absorbent article 1 as a whole can provide the wearer with an appropriate temperature (cooling) effect.

[0131] Furthermore, as mentioned above, the temperature-sensitive agent 27 is a volatile substance. Additionally, the temperature-sensitive agent 27 is positioned on the skin side in the thickness direction, closer to the impermeable sheet 25a constituting the absorbent body 20. Therefore, the volatile temperature-sensitive agent 27 is difficult to permeate to the non-skin side of the absorbent body 20 and easily diffuses towards the skin side. Thus, even if the concentration and amount of temperature-sensitive agent 27 applied to the absorbent body 20 are reduced to avoid excessive tactile stimulation, the volatile temperature-sensitive agent 27 easily reaches the wearer's groin area, providing appropriate stimulation to the area around the vaginal opening.

[0132] Alternatively, the intensity of the thermal stimuli 26 and 27 can be adjusted by considering the wearer's posture while wearing the absorbent material 1. For example, the intensity of the thermal stimuli 27f located further forward than the center position CL along the length of the absorbent body 20 can be made weaker than the intensity of the thermal stimuli 26 located on the front waist member 10f. By doing so, appropriate stimulation can be easily applied when the wearer is seated.

[0133] When the wearer is seated, it is difficult to apply body pressure to the wearer's lower back, therefore the area in the front waist member 10f with the heat-sensitive agent 26 does not easily press against the wearer's body (see reference). Figure 6 Therefore, in order to provide the wearer with appropriate stimulation in the flank area, it is desirable to make the tactile intensity of the temperature-sensitive agent 26 as strong as possible. On the other hand, since it is easy to apply body pressure to the area around the vaginal opening in the wearer's groin area, the area in the absorbent body 20 where the temperature-sensitive agent 27f is located is easy to press against the wearer's body (see reference). Figure 6 Therefore, in order to provide the wearer with appropriate stimulation around the vaginal opening, it is desirable that the intensity of the thermosensitive agent 27f is at least weaker than that of the thermosensitive agent 26. Thus, when the wearer is seated, an appropriate warming (cooling) effect can be felt in the waist and around the vaginal opening.

[0134] Alternatively, the intensity of the heat-sensitive agent 27f located in the longitudinal direction of the absorbent body 20, further forward than the center position CL, can be made weaker than the intensity of the heat-sensitive agent 26m located in the rear waist member 10b. By doing so, appropriate stimulation can be easily applied when the wearer is lying in a prone position.

[0135] When the wearer is in a prone position, it is difficult to apply body pressure to the wearer's back and waist. Therefore, the area in the rear waist member 10b containing the temperature-sensitive agent 26m is difficult to press against the wearer's body (see reference). Figure 6 Therefore, in order to provide the wearer with appropriate stimulation in the back and waist area, it is desirable to make the tactile intensity of the temperature-sensitive agent 26m as strong as possible. On the other hand, since it is easy to apply body pressure to the lower abdomen (vaginal opening) and surrounding area in the wearer's groin area, the area in the absorbent body 20 where the temperature-sensitive agent 27f is located is easy to press against the wearer's body (see reference). Figure 6 Therefore, in order to provide the wearer with appropriate stimulation around the vaginal opening, it is desirable that the intensity of the temperature-sensitive agent 27f is at least weaker than that of the temperature-sensitive agent 26m. Thus, when the wearer is in a prone position, an appropriate temperature (or cooling) effect can be felt in the waist and around the vaginal opening.

[0136] Alternatively, the intensity of the tactile stimulation of the temperature-sensitive agent 27b located behind the center position CL in the longitudinal direction of the absorbent body 20 can be made weaker than the intensity of the tactile stimulation of the temperature-sensitive agent 26 located on the front waist member 10f. By doing so, appropriate stimulation can be easily applied when the wearer is lying in a supine position.

[0137] When the wearer is in a supine position, it is difficult to apply body pressure to the wearer's waist and abdomen. Therefore, the area in the front waist member 10f equipped with the heat-sensitive agent 26 is difficult to press against the wearer's body (see reference). Figure 6 Therefore, in order to provide the wearer with appropriate stimulation in the flank area, it is desirable to have the tactile intensity of the heat-sensitive agent 26 as strong as possible. On the other hand, it is easy to apply body pressure to the wearer's buttocks, so the area in the absorbent body 20 containing the heat-sensitive agent 27b on the buttock side is easily pressed against the wearer's body. In this case, the evaporated heat-sensitive agent 27b easily moves down the front of the groin through the gluteal cleft to the area around the vaginal opening, causing stimulation to the area around the vaginal opening. Therefore, in order to provide the wearer with appropriate stimulation around the vaginal opening, it is desirable that the tactile intensity of the heat-sensitive agent 27b is at least weaker than that of the heat-sensitive agent 26. Thus, when the wearer is in a supine position, it is possible for the wearer to feel an appropriate warming (cooling) effect in the flank and around the vaginal opening.

[0138] Alternatively, the intensity of the heat-sensitive agent 27b located further back than the center position CL in the longitudinal direction of the absorbent body 20 can be made weaker than the intensity of the heat-sensitive agent 26m located on the rear waist member 10b. By doing so, appropriate stimulation can be easily applied when the wearer is lying in a prone position.

[0139] When the wearer is in a prone position, it is difficult to apply body pressure to the wearer's back and waist. Therefore, the area in the rear waist member 10b containing the temperature-sensitive agent 26m is difficult to press against the wearer's body (see reference). Figure 6 Therefore, in order to provide the wearer with appropriate stimulation in the back and waist area, it is desirable to make the tactile intensity of the warming agent 26m as strong as possible. On the other hand, in the wearer's groin area, the evaporated warming agent 27b may reach the periphery of the vaginal opening through the gluteal cleft and cause stimulation to the periphery of the vaginal opening. Therefore, in order to provide the wearer with appropriate stimulation around the vaginal opening, it is desirable to make the tactile intensity of the warming agent 27b at least weaker than that of the warming agent 26m. Thus, when the wearer is in a prone position, an appropriate warming (cooling) effect can be felt in the waist and periphery of the vaginal opening.

[0140] In addition, such as Figure 3 As shown, the temperature-sensitive agent 27 is configured such that, when viewed along the thickness direction, it has a portion overlapping with the absorbent core 22. With this structure, a portion of the temperature-sensitive agent 27 easily penetrates into the liquid absorbent material contained in the absorbent core 22, and the penetrated temperature-sensitive agent 27 gradually evaporates from the absorbent core 22. Therefore, when the absorbent garment 1 is worn, the temperature-sensitive agent 27 gradually seeps out from the absorbent core 22, enabling the temperature-sensing effect to last for a long time.

[0141] Alternatively, the perceived intensity of the temperature-sensitive agent 27b located behind the center position CL in the longitudinal direction of the absorbent body 20 can be made weaker than that of the temperature-sensitive agent 27f located forward of the center position CL in the longitudinal direction of the absorbent body 20. When wearing the absorbent article 1, the rear region of the absorbent body 20 is farther from the vaginal opening than the front region. Therefore, even if the perceived intensity of the temperature-sensitive agent 27b in the rear region is weaker than that in the front region, the difference in the temperature-sensing effect felt by the wearer around the vaginal opening is unlikely to occur. Thus, by reducing the coating concentration or the coating amount of the temperature-sensitive agent 27b in the rear region, the manufacturing cost of the absorbent article 1 can be reduced while maintaining an appropriate temperature-sensing effect.

[0142] At this point, it is desirable that, for the absorbent body 20, the length of the portion rearward of the center position CL is greater than the length of the portion forward of the center position CL. Figure 5 In this case, the length L20b of the portion of the absorbent body 20 located behind the center position CL is longer than the length L20f of the portion of the absorbent body 20 located in front of the center position CL (L20f ≤ L20b). As described above, when the perceived intensity of the temperature-sensitive agent 27f in the front region of the absorbent body 20 is stronger than that in the rear region of the absorbent body 20, if the area of ​​the front region of the absorbent body 20 is large, the area where the temperature-sensitive agent 27f is provided becomes wider, and therefore the stimulation to the lower abdomen of the wearer may be too strong. Therefore, by making the length L20f of the front side of the absorbent body 20 shorter than the length L20b of the rear side of the absorbent body 20 in the length direction, it is possible to prevent the area where the temperature-sensitive agent 27f is provided from becoming too wide. On the other hand, by lengthening the length L20b of the rear side of the absorbent body 20 in the length direction, the absorbent body 20 is more likely to come into contact with a large area of ​​the wearer's buttocks when wearing the absorbent article 1 (see reference). Figure 6 It can easily suppress the back leakage of excrement and easily feel the warming effect in the range up to the wearer's sacrum.

[0143] Furthermore, the absorbent body 20 of this embodiment has a weakly tactile area 28 at its central portion in the left-right direction, which has a predetermined width in the left-right direction and extends along the length direction (see reference). Figure 3 In the manufacture of absorbent article 1, the temperature-sensitive agent 27 (cooling agent) was not applied to the weakly sensitive area 28. Therefore, in the weakly sensitive area 28, the areas adjacent to it on both sides in the left-right direction (in...) Figure 3 , Figure 5 Compared to the area where the warming agent 27 is applied, the intensity of the warming agent 27 is weaker. Therefore, it is possible to suppress excessive stimulation of the vaginal opening in the central part in the left-right direction when wearing the absorbent material 1. In addition, the warming agent 27 is provided on both sides in the left-right direction of the weakly stimulating area 28, so the warming agent 27 can be used to stimulate the area around the vaginal opening. As a result, the wearer can feel an appropriate warming effect. In addition, after the absorbent material 1 is manufactured, some of the evaporated warming agent 27 and warming agent 26 may sometimes adhere to the weakly stimulating area 28. However, even if some of such warming agent 27 adheres, the intensity of the warming in the weakly stimulating area 28 is extremely weak compared to the area where the warming agent 27 is directly applied, so it is difficult to cause any discomfort to the wearer (vaginal opening).

[0144] ===Second Implementation Method===

[0145] In the second embodiment, regarding the absorbent article 1, which is the same as in the first embodiment, an example will be described in which the intensity of the heat-sensitive agent 27 of the absorbent body 20 is stronger than the intensity of the heat-sensitive agent 26 of the waist member 10. The structure of the absorbent article 1 and the positions of the heat-sensitive agents 26 and 27 are substantially the same as in the first embodiment.

[0146] In the absorbent article 1 of the second embodiment, the intensity of the heat-sensitive agents 26 and 27 can also be adjusted taking into account the wearer's posture. For example, the intensity of the heat-sensitive agent 27f located in the longitudinal direction of the absorbent body 20, further forward than the center position CL, can be made stronger than the intensity of the heat-sensitive agent 26 located in the front waist member 10f. By doing so, appropriate stimulation can be easily applied when the wearer is lying in a prone position.

[0147] When the wearer is in a prone position, it is easy to apply body pressure to the wearer's lumbar region. Therefore, the area in the front lumbar support member 10f containing the heat-sensitive agent 26 easily presses against the wearer's abdomen, and even if the intensity of the heat-sensitive agent 26 is relatively low, the wearer can easily feel the warming effect. Furthermore, in the wearer's abdomen, the amount of fat is less near the protrusion of the iliac crest (see reference). Figure 6 Therefore, in this area, the wearer can easily feel the stimulation of the heat-sensitive agent 26. On the other hand, when the wearer is in a prone position, the ventral (front) area of ​​the absorbent body 20 presses against the wearer's abdomen, resulting in excess fabric at the crotch of the absorbent body 20, which easily creates a gap (space) between the wearer's body (groin) and the absorbent body 20. Therefore, the heat-sensitive agent 27f provided on the absorbent body 20 is difficult to directly contact the wearer's crotch. Therefore, the tactile intensity of the heat-sensitive agent 27f on the front of the absorbent body 20 is at least stronger than the tactile intensity of the heat-sensitive agent 26 on the front waist member 10f. By doing so, the evaporated heat-sensitive agent 27f easily accumulates in the space between the wearer's groin and the absorbent body 20, making it easy to apply appropriate stimulation to the area around the vaginal opening. Therefore, the wearer can feel an appropriate warming (cooling) effect.

[0148] Alternatively, the tactile intensity of the temperature-sensitive agent 27f located in the longitudinal direction of the absorbent body 20, further forward than the center position CL, can be made stronger than the tactile intensity of the temperature-sensitive agent 26m located in the rear waist member 10b. By doing so, appropriate stimulation can be easily applied when the wearer is lying in a supine position.

[0149] When the wearer is in a supine position, it is easy to apply body pressure to the wearer's lower back. Therefore, the area in the posterior lower back member 10b containing the heat-sensitive agent 26m easily presses against the wearer's back, and even if the intensity of the heat-sensitive agent 26m is relatively low, the wearer can easily feel the warming effect. Furthermore, on the wearer's back, the amount of fat is less near the protrusion of the sacrum (see reference). Figure 6 Therefore, in this area, the wearer can easily feel the stimulation of the temperature-sensitive agent 26m. On the other hand, when the wearer is in a supine position, the back (rear) area of ​​the absorbent body 20 presses against the wearer's back, thus creating excess fabric at the crotch of the absorbent body 20, easily forming a gap (space) between the wearer's body (groin) and the absorbent body 20. Therefore, the temperature-sensitive agent 27f provided on the absorbent body 20 is difficult to directly contact the wearer's crotch. Therefore, the tactile intensity of the temperature-sensitive agent 27f on the front of the absorbent body 20 is at least stronger than the tactile intensity of the temperature-sensitive agent 26m on the back waist member 10b. By doing so, the evaporated temperature-sensitive agent 27f easily accumulates in the space between the wearer's crotch and the absorbent body 20, easily applying appropriate stimulation to the area around the vaginal opening. Therefore, the wearer can feel an appropriate temperature (cooling) effect.

[0150] Alternatively, the tactile intensity of the temperature-sensitive agent 27b located behind the center position CL in the longitudinal direction of the absorbent body 20 can be made stronger than that of the temperature-sensitive agent 26 located on the front waist member 10f. By doing so, appropriate stimulation can be easily applied when the wearer is lying in a prone position.

[0151] When the wearer is in a prone position, it is easy to apply body pressure to the wearer's lumbar region. Therefore, the area in the front lumbar support member 10f containing the heat-sensitive agent 26 easily presses against the wearer's abdomen, and even if the intensity of the heat-sensitive agent 26 is relatively low, the wearer can easily feel the warming effect. Furthermore, in the wearer's abdomen, the amount of fat is less near the protrusion of the iliac crest (see reference). Figure 6 Therefore, in this area, the wearer can easily feel the stimulation of the warming agent 26. On the other hand, the area on the rear side of the absorbent body 20 is farther from the wearer's vaginal opening, making it difficult to apply the stimulation of the warming agent 27b around the vaginal opening. In addition, as mentioned above, a gap (space) is easily formed between the wearer's groin and the absorbent body 20. Therefore, by making the tactile intensity of the warming agent 27b on the rear side of the absorbent body 20 at least stronger than the tactile intensity of the warming agent 26 on the front waist member 10f, it is easy to apply appropriate stimulation to the area around the wearer's vaginal opening. Thus, the wearer can feel an appropriate warming (cooling) effect.

[0152] Alternatively, the tactile intensity of the temperature-sensitive agent 27b located further back than the center position CL in the longitudinal direction of the absorbent body 20 can be made stronger than the tactile intensity of the temperature-sensitive agent 26m located on the rear waist member 10b. By doing so, appropriate stimulation can be easily applied when the wearer is lying in a supine position.

[0153] When the wearer is in a supine position, it is easy to apply body pressure to the wearer's lower back. Therefore, the area in the posterior lower back member 10b containing the heat-sensitive agent 26m easily presses against the wearer's back, and even if the intensity of the heat-sensitive agent 26m is relatively low, the wearer can easily feel the warming effect. Furthermore, on the wearer's back, the amount of fat is less near the protrusion of the sacrum (see reference). Figure 6 Therefore, in this area, the wearer can easily feel the stimulation of the warming agent 26m. On the other hand, the area on the rear side of the absorbent body 20 is farther from the wearer's vaginal opening, making it difficult to apply the warming agent 27b to the area around the vaginal opening. In addition, as mentioned above, a gap (space) is easily formed between the wearer's groin and the absorbent body 20. Therefore, by making the tactile intensity of the warming agent 27b on the rear side of the absorbent body 20 at least stronger than the tactile intensity of the warming agent 26m on the rear waist member 10b, it is easy to apply appropriate stimulation to the area around the wearer's vaginal opening. Thus, the wearer can feel an appropriate warming (cooling) effect.

[0154] ===Other Implementation Methods===

[0155] The above embodiments are provided to facilitate understanding of the present invention and are not intended to limit or interpret the invention. The present invention can be modified and improved without departing from its spirit, and its equivalents are naturally included.

[0156] In the above embodiment, the ranges of the temperature-sensitive agent 26 provided on the waist member 10 and the temperature-sensitive agent 27 provided on the absorbent body 20 have been described. However, it is desirable that the width of the temperature-sensitive agent 26 provided on the absorbent article 1 in the left-right direction is larger than the width of the temperature-sensitive agent 27 in the left-right direction. Figure 5 In this design, the width W26 of the temperature-sensitive agent 26 in the lateral direction is greater than the width W27 of the temperature-sensitive agent 27 in the lateral direction (the distance between one end of the temperature-sensitive agent 27 and the other end in the lateral direction). Therefore, in the area around the vaginal opening where there is less fat and greater sensitivity to stimulation, the area where the wearer feels the warming effect of the temperature-sensitive agent 27 is narrower, while in the area around the waist where there is more fat, the area where the wearer feels the warming effect of the temperature-sensitive agent 26 is larger. Thus, the wearer can experience a more appropriate warming effect.

[0157] In the above embodiment, an example was described in which a temperature-sensitive agent 26 was coated on the skin-side surface of the cushioning sheet 15, which is positioned closest to the skin in the thickness direction of the front waist member 10f. According to this structure, the perceived intensity of the temperature-sensitive agent 26 on the skin-side of the cushioning sheet 15 is stronger than that on the non-skin-side of the cushioning sheet 15. In other words, the temperature-sensitive agent 26 easily comes into contact with the wearer's skin, thus allowing the wearer to effectively feel the temperature sensation in areas with more fat and where stimulation is difficult to transmit, such as the waist area. Furthermore, in the sensory test described above, by testing both the skin-side and non-skin-side of the patch, the perceived intensity of the temperature-sensitive agent 26 on either the skin-side or non-skin-side of the cushioning sheet 15 can be compared.

[0158] However, the location where the temperature-sensitive agent 26 is applied is not limited to the above examples. In the thickness direction of the front waist member 10f, the temperature-sensitive agent 26 can be applied to the non-skin side of the buffer sheet 15 located at the position closest to the non-skin side, or it can be applied to other sheet members.

[0159] In the above embodiment, an example was described in which a temperature-sensitive agent 27 was coated on the non-skin side of the skin-side patch 24, which is located at the position closest to the skin, in the thickness direction of the absorbent body 20. According to this structure, the perceived intensity of the temperature-sensitive agent 27 on the non-skin side of the skin-side patch 24 is stronger than that on the skin side of the skin-side patch 24. In other words, the temperature-sensitive agent 27 is less likely to come into direct contact with the wearer's skin, thus suppressing excessive stimulation of the wearer around the vaginal opening, where there is less fat and greater sensitivity to stimulation. Furthermore, in the above sensory test, by testing both the skin-side and non-skin side of the patch, the perceived intensity of the temperature-sensitive agent 27 on either the skin-side or non-skin side of the skin-side patch 24 can be compared.

[0160] However, the location where the temperature-sensitive agent 27 is applied is not limited to the above examples. In the thickness direction of the absorbent body 20, the temperature-sensitive agent 27 can be applied to the skin side of the skin side sheet 24 located closest to the skin side, or it can be applied to other sheet components.

[0161] In the above embodiment, an example was described in which the waist member 10 is elastic in the left-right direction by providing an elastic piece 12. If the elastic piece 12 contracts, the low elasticity piece 14 and the buffer piece 15, which have lower elasticity, become relaxed, thereby easily forming multiple small folds extending in the vertical direction (length direction) on the surface of the waist member 10. That is, multiple protrusions (folds) extending in the vertical direction and protruding in the thickness direction are formed side by side in the left-right direction on the skin side of the waist member 10. Therefore, when wearing the absorbent article 1, the temperature-sensitive agent 26 provided on the protrusions can easily come into contact with the wearer's skin. In addition, the evaporated temperature-sensitive agent 26 can easily diffuse through the space between adjacent protrusions (i.e., recesses) in the left-right direction, so the wearer can easily feel the temperature-sensitive effect of the temperature-sensitive agent 26 over a large area of ​​the waist.

[0162] In the above embodiment, the absorbent body 20 is provided with a crotch elastic band 30 that stretches along its length. However, it is desirable that, when viewed along the thickness direction, at least a portion of the temperature-sensitive agent 27 overlaps with the crotch elastic band 30. This crotch elastic band 30 is positioned closer to the non-skin side than the absorbent core 22, so that when the absorbent article 1 is worn, the contractile force of the crotch elastic band 30 easily lifts the absorbent core 22 towards the wearer's skin and brings it into close contact with the groin area, effectively suppressing leakage of menstrual blood and other excretory fluids. Furthermore, in the portion overlapping with the crotch elastic band 30, the temperature-sensitive agent 27 easily comes into contact with the wearer's skin, thus further enhancing the temperature-sensing effect (cooling effect) of the temperature-sensitive agent 27.

[0163] In the above embodiment, an example of a waist member 10 having lateral elasticity by stacking the elastic sheet 12 and the low elasticity sheet 14 in the thickness direction has been described. However, other structures can also be used to make the waist member 10 lateral elastic. For example, it can be configured by stacking two layers of non-elastic sheet members and sandwiching an elastic member such as a rubber band that can stretch in the lateral direction between the non-elastic sheet members.

[0164] <Regarding the packaging of absorbent item 1>

[0165] In this embodiment, the absorbent article 1 is folded after being formed into shorts, and one absorbent article 1 is placed into one packaging container for packaging. That is, the absorbent article 1 is individually packaged, and in the packaged state, it is in a folded state.

[0166] Figure 7This is a schematic diagram showing the folding method of the shorts-type absorbent item 1. The left diagram shows the state before folding the absorbent item 1, the central diagram shows the state after folding the left protrusion 10L and the right protrusion 10R, and the right diagram shows the state after folding the absorbent item 1 in the vertical direction at the fold line BL.

[0167] like Figure 7 As shown in the left figure, the absorbent article 1 of this embodiment has a left protrusion 10L located to the left of the left end 20Le of the absorbent body 20 and a right protrusion 10R located to the right of the right end 20Re of the absorbent body 20. Furthermore, firstly, as... Figure 7 As shown in the central diagram, the left protrusion 10L folds towards the right side of the left end 20Le of the absorbent body 20, and the right protrusion 10R folds towards the left side of the right end 20Re of the absorbent body 20. Next, as... Figure 7 As shown in the right figure, the absorbent item 1 is folded along the fold line BL in the vertical direction and is packaged in this state.

[0168] In this way, the absorbent article 1 is packaged with the left protrusion 10L and the right protrusion 10R overlapping the temperature-sensitive agent 26 in the front-back direction. That is, in the packaged state, when viewed in the front-back direction, at least a portion of the temperature-sensitive agent 26 overlaps with at least one of the left protrusion 10L and the right protrusion 10R.

[0169] Therefore, in the packaged state, it can inhibit the vaporized temperature-sensitive agent 26 from being discharged in the front-back direction (from the skin side to the non-skin side).

[0170] In addition, Figure 7 In the middle section, after the left protrusion 10L is folded to the right, the right protrusion 10R is folded to the left. The absorbent material 1 is folded vertically along the fold line BL, but it is not limited to this order. For example, the right protrusion 10R can be folded first. In addition, all folds are performed with the ventral (front) sides facing each other, but it is not limited to this. For example, the absorbent material 1 can be folded vertically along the fold line BL with the dorsal (rear) sides facing each other.

Claims

1. A pant-type absorbent article characterized by comprising: the pant-type absorbent article has an up-and-down direction and a left-and-right direction which cross each other, the pant-type absorbent article has: an absorbent main body which is liquid-absorbing; and a waist member which is disposed so as to overlap a non-skin side of the absorbent main body, a warming agent or a cooling agent is provided to both the absorbent main body and the waist member, when a wearer wears the pant-type absorbent article, a sense of intensity of the warming agent of the absorbent main body is different from a sense of intensity of the warming agent of the waist member, or a sense of intensity of the cooling agent of the absorbent main body is different from a sense of intensity of the cooling agent of the waist member.

2. The pant-type absorbent article according to claim 1, characterized in that: the absorbent main body has a liquid-impermeable sheet, the warming agent or the cooling agent is a volatile substance, the warming agent or the cooling agent is provided to a position on a skin side of the liquid-impermeable sheet in a thickness direction of the absorbent main body.

3. The pant-type absorbent article according to claim 2, characterized in that: a sense of intensity of the warming agent or the cooling agent of the waist member is stronger than a sense of intensity of the warming agent or the cooling agent of the absorbent main body.

4. The pant-type absorbent article according to claim 3, characterized in that: the waist member has a front waist member and a back waist member, a sense of intensity of the warming agent or the cooling agent of the front waist member is stronger than a sense of intensity of the warming agent or the cooling agent of a position on a front side of the pant-type absorbent article in a longitudinal direction of the absorbent main body in an unfolded state.

5. The pant-type absorbent article according to claim 3 or 4, characterized in that: the waist member has a front waist member and a back waist member, a sense of intensity of the warming agent or the cooling agent of the back waist member is stronger than a sense of intensity of the warming agent or the cooling agent of a position on a front side of the pant-type absorbent article in a longitudinal direction of the absorbent main body in an unfolded state.

6. The pant-type absorbent article according to claim 3 or 4, characterized in that: the waist member has a front waist member and a back waist member, a sense of intensity of the warming agent or the cooling agent of the front waist member is stronger than a sense of intensity of the warming agent or the cooling agent of a position on a back side of the pant-type absorbent article in a longitudinal direction of the absorbent main body in an unfolded state.

7. The pant-type absorbent article according to claim 3 or 4, characterized in that: the waist member has a front waist member and a back waist member, a sense of intensity of the warming agent or the cooling agent of the back waist member is stronger than a sense of intensity of the warming agent or the cooling agent of a position on a back side of the pant-type absorbent article in a longitudinal direction of the absorbent main body in an unfolded state.

8. The pant-type absorbent article according to claim 2, characterized in that: The waist member has a front waist member and a back waist member, The intensity of the thermal sensation of the warm or cool agent in the length direction of the absorbent main body in a position on the front side of the center position of the pants-type absorbent article in the unfolded state is stronger than the intensity of the thermal sensation of the warm or cool agent of the front waist member.

9. The pants-type absorbent article according to claim 2 or 8, wherein The waist member has a front waist member and a back waist member, The intensity of the thermal sensation of the warm or cool agent in the length direction of the absorbent main body in a position on the front side of the center position of the pants-type absorbent article in the unfolded state is stronger than the intensity of the thermal sensation of the warm or cool agent of the front waist member.

10. The pants-type absorbent article according to claim 8, wherein The waist member has a front waist member and a back waist member, The intensity of the thermal sensation of the warm or cool agent in the length direction of the absorbent main body in a position on the front side of the center position of the pants-type absorbent article in the unfolded state is stronger than the intensity of the thermal sensation of the warm or cool agent of the front waist member.

11. The pants-type absorbent article according to claim 8, wherein The waist member has a front waist member and a back waist member, The intensity of the thermal sensation of the warm or cool agent in the length direction of the absorbent main body in a position on the front side of the center position of the pants-type absorbent article in the unfolded state is stronger than the intensity of the thermal sensation of the warm or cool agent of the front waist member.

12. The pants-type absorbent article according to any one of claims 1 to 4, wherein The warm or cool agent is a volatile substance, The absorbent main body has an absorbent core containing a liquid-absorbing raw material, The warm or cool agent is provided at least partially in a region overlapping the absorbent core when viewed in the thickness direction of the absorbent main body.

13. The pants-type absorbent article according to any one of claims 1 to 4, wherein The intensity of the thermal sensation of the warm or cool agent in the length direction of the absorbent main body in a position on the front side of the center position of the pants-type absorbent article in the unfolded state is stronger than the intensity of the thermal sensation of the warm or cool agent in a position on the back side of the center position.

14. The pants-type absorbent article according to claim 13, wherein In the length direction, the length of the portion of the absorbent main body on the back side of the center position is longer than the length of the portion of the absorbent main body on the front side of the center position.

15. The pants-type absorbent article according to any one of claims 1 to 4, wherein A weak thermal sensation region having a predetermined width in the left-right direction is provided in a central portion of the absorbent main body in the left-right direction, The somatic intensity of the warm and cool agents of the weak somatic sensation area is weaker than the somatic intensity of the warm and cool agents of areas adjacent to the weak somatic sensation area on both sides thereof in the left-right direction.

16. The pant-type absorbent article according to any one of claims 1 to 4, characterized in that The somatic intensity of the warm or cool agent of the skin side of the sheet member disposed at a position closest to the skin side of the waist member is stronger than the somatic intensity of the warm or cool agent of the non-skin side of the sheet member.

17. The pant-type absorbent article according to any one of claims 1 to 4, characterized in that The somatic intensity of the warm or cool agent of the non-skin side of the skin-side sheet disposed at a position closest to the skin side of the absorbent main body is stronger than the somatic intensity of the warm or cool agent of the skin side of the skin-side sheet.

18. The pant-type absorbent article according to any one of claims 1 to 4, characterized in that On the skin side of the waist member, a plurality of convex portions extending along the up-down direction and protruding in the thickness direction are provided side by side in the left-right direction.

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