WO2022130871A1 - Absorbent article - Google Patents

Absorbent article Download PDF

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Publication number
WO2022130871A1
WO2022130871A1 PCT/JP2021/041893 JP2021041893W WO2022130871A1 WO 2022130871 A1 WO2022130871 A1 WO 2022130871A1 JP 2021041893 W JP2021041893 W JP 2021041893W WO 2022130871 A1 WO2022130871 A1 WO 2022130871A1
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WO
WIPO (PCT)
Prior art keywords
odor
absorbent article
absorber
stool
sheet
Prior art date
Application number
PCT/JP2021/041893
Other languages
French (fr)
Japanese (ja)
Inventor
拓也 深山
祥太 宇都
Original Assignee
ユニ・チャーム株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ユニ・チャーム株式会社 filed Critical ユニ・チャーム株式会社
Priority to CN202180076432.9A priority Critical patent/CN116583249A/en
Publication of WO2022130871A1 publication Critical patent/WO2022130871A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/42—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators with wetness indicator or alarm
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium

Definitions

  • the present invention relates to an absorbent article.
  • the excretion detection system that detects excretion by attaching a removable sensor to the outside of the diaper may not be able to detect the excrement excreted inside the diaper well.
  • the fluidity is lower than that of urine, and it is difficult for the stool to move from the inside to the outside of the diaper. There was a problem of getting worse.
  • the present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to improve the detection accuracy when detecting defecation by using an external sensor in an absorbent article. It is in.
  • the main invention for achieving the above object is to detect the odor of excretion, which is provided with an absorber and is on the front side when worn, and is on the non-skin side of the absorber.
  • An absorbent article having an abutting portion that comes into contact with the excretory odor detecting device when the device is detachably attached, and has an odor guiding portion that induces the odor of the stool on the skin side of the abutting portion. , It is an absorbent article characterized by.
  • FIG. 3A is a schematic cross-sectional view showing the cross-sectional structure of the odor sensor 60 when viewed from the side surface.
  • FIG. 3B is a diagram showing a state in which the odor sensor 60 is viewed from the back surface side. It is a figure which shows the state which attached the odor sensor 60 to the diaper 1 worn by the wearer. It is a figure explaining the contact portion SA of the diaper 1. It is a figure explaining an example of the structure of the odor induction part 40.
  • 7A and 7B are diagrams illustrating a modified example of the odor inducing unit 40. It is a top view in the state which the pants disposable diaper 2 is expanded and extended.
  • the excretory odor when the excretion odor detection device that detects the odor of stool is detachably attached to the part that is provided with an absorber and is on the front side when worn and is on the non-skin side of the absorber.
  • the air permeability when the odor of stool is permeated in the thickness direction of the absorbent article at a certain position of the abutting portion is a portion other than the abutting portion. It is desirable that the position is larger than the air permeability when the odor of stool is permeated in the thickness direction.
  • the odor of stool easily flows in the thickness direction, and the odor of stool or the like excreted on the skin side of the absorbent article is transferred to the excretory odor detecting device attached to the non-skin side. It will be easier to reach. Therefore, the excretion detection accuracy can be improved.
  • the basis weight of the absorber in the odor-inducing portion of the absorbent article is smaller than the basis weight of the absorber in the vicinity of the odor-inducing portion.
  • the odor of stool easily permeates the absorber from the skin side to the non-skin side in the thickness direction at the odor induction portion.
  • the odor of the stool can easily reach the excretion odor detecting device attached to the non-skin side, and the excretion detection accuracy can be improved.
  • the thickness of the absorber in the odor-inducing portion of the absorbent article is smaller than the thickness of the absorber in the periphery of the odor-inducing portion.
  • the thin thickness of the absorber shortens the distance when the odor of stool permeates the absorber from the skin side to the non-skin side in the thickness direction at the odor inducing portion.
  • the odor of the stool can easily reach the excretion odor detecting device attached to the non-skin side, and the excretion detection accuracy can be improved.
  • the absorbent article has a liquid-impermeable sheet provided with a plurality of vents on the non-skin side of the absorbent body, and at least the odor induction when viewed in the thickness direction of the absorbent article. It is desirable that the liquid impermeable sheet is stretched in the plane direction in the region overlapping the portion.
  • the size of the ventilation holes is expanded, and the odor of the stool moves in the thickness direction through the ventilation holes. It becomes easier to do.
  • the odor of the stool can easily reach the excretion odor detecting device attached to the non-skin side, and the excretion detection accuracy can be improved.
  • the absorbent article has an exterior sheet arranged on the most non-skin side of the absorbent article, and a through hole penetrating the exterior sheet in the thickness direction is provided in the odor guiding portion. , Is desirable.
  • the exterior sheet constituting the exterior of the absorbent article is provided with a through hole, the odor of stool easily moves in the thickness direction through the through hole. .. As a result, the odor of the stool can easily reach the excretion odor detecting device attached to the non-skin side, and the excretion detection accuracy can be improved.
  • the artificial stool transmittance when the artificial stool is permeated in the thickness direction of the absorbent article at a certain position of the abutting portion is a portion other than the abutting portion. It is desirable that the position is larger than the artificial stool transmittance when the artificial stool is permeated in the thickness direction.
  • the water (stool juice) contained in the stool easily permeates in the thickness direction, and the odor generated from the stool (stool juice) excreted on the skin side of the absorbent article is eliminated. It is possible to easily reach the excretory odor detecting device attached to the non-skin side. Therefore, the excretion detection accuracy can be improved.
  • the density of the absorber in the odor-inducing portion of the absorbent article is higher than the density of the absorber in the vicinity of the odor-inducing portion.
  • the capillary phenomenon is likely to occur due to the high density of the absorber in the odor inducing portion, and the movement of the stool juice in the thickness direction is promoted.
  • the odor generated from the stool juice can easily reach the excretion odor detecting device, and the excretion detection accuracy can be improved.
  • a liquid permeable sheet is provided on the skin side of the absorbent body, and a through hole penetrating the liquid permeable sheet in the thickness direction is provided in the odor inducing portion. , Is desirable.
  • the liquid permeable sheet in the odor inducing portion, is provided with a through hole, so that the stool juice moves in the thickness direction through the through hole. It will be easier. As a result, the odor generated from the stool juice can easily reach the excretion odor detecting device, and the excretion detection accuracy can be improved.
  • Such an absorbent article is provided with a second sheet having a higher density than the liquid permeable sheet between the liquid permeable sheet and the absorbent body in the odor inducing portion.
  • a second sheet having a high density is provided on the non-skin side of the liquid permeable sheet, so that the liquid permeable sheet moves from the liquid permeable sheet to the second sheet side due to the capillary phenomenon.
  • the stool juice is easily drawn in. That is, the stool juice easily moves to the non-skin side in the thickness direction. As a result, the odor generated from the stool juice can easily reach the excretion odor detecting device, and the excretion detection accuracy can be improved.
  • the odor-inducing portion of the absorbent article is arranged so as to straddle the central position in the longitudinal direction in which the absorbent article is expanded and extended.
  • the odor of stool discharged from the anus on the posterior side in the longitudinal direction can be easily moved to the anterior side in the longitudinal direction along the odor induction portion.
  • the odor of stool can be easily detected by the excrement odor detecting device installed on the front side in the longitudinal direction, and the accuracy of detecting excrement can be improved.
  • the odor-inducing portion of the absorbent article is arranged so as to straddle the central position in the longitudinal direction in which the absorbent article is expanded and extended.
  • the odor-inducing portion is provided with a diffusion sheet for diffusing artificial stool in a plane direction on the skin side of the absorber.
  • the absorbent body has a density higher than that of the surroundings, and the absorbent article is expanded and stretched in the longitudinal direction. It is desirable that a continuous squeeze section is provided.
  • the stool juice is easily moved in the longitudinal direction of the absorber by being guided to the squeezed portion along the longitudinal direction in the odor inducing portion.
  • the odor of stool is easily guided to the excrement odor detecting device, and the accuracy of detecting excrement can be further improved.
  • the absorbent body is provided with a slit portion along the longitudinal direction in a state where the absorbent article is expanded and extended in the odor inducing portion.
  • the stool juice easily moves in the longitudinal direction by passing through the slit along the longitudinal direction in the odor inducing portion.
  • the odor of stool is easily guided to the excretory odor detecting device, and the detection accuracy can be further improved.
  • the slit portion of the absorbent article is arranged so as to straddle the rear end of the contact portion in the longitudinal direction.
  • the absorbent article has a guide display at the contact portion, which guides the mounting position of the excretory odor detecting device.
  • the user can attach the excretion odor detecting device to the optimum position of the contact portion according to the guidance display.
  • the accuracy of detecting excrement by the excrement odor detecting device can be improved.
  • a tape-type disposable diaper will be described as an example.
  • the tape-type disposable diaper may be an adult diaper or an infant diaper.
  • the tape type disposable diaper will be described in the first embodiment, the type of the diaper is not limited to the tape type, and the present invention can be applied to, for example, a pad type disposable diaper and other diapers. ..
  • FIG. 1 is a plan view of a tape-type disposable diaper 1 (hereinafter, also referred to as “diaper 1”) in a deployed and extended state.
  • FIG. 2 is a cross-sectional view taken along the line AA shown in FIG.
  • the extended state of the diaper 1 is a state in which the wrinkles generated in the diaper 1 are substantially invisible in the unfolded state of the diaper 1, and each member constituting the diaper 1 (for example, described later).
  • the diaper 1 is in a stretched state until the size of the top sheet (22, etc.) is equal to or close to the size of the single member.
  • the diaper 1 of the present embodiment is a so-called open type disposable diaper, and has a front portion 3, an inseam portion 5, and a rear portion 7 as shown in FIG.
  • the front portion 3 is a portion that will be located in the front portion (ventral side, front waist circumference) of the wearer.
  • the rear portion 7 is a portion to be located at the rear portion (dorsal side, rear waist circumference) of the wearer.
  • the inseam 5 is a portion that will be located between the front portion 3 and the rear portion 7.
  • each direction is defined as shown in FIG. That is, in the extended diaper 1, the direction from the front portion 3 to the rear portion 7 is defined as the “longitudinal direction”, and the direction orthogonal to the longitudinal direction is defined as the “width direction”.
  • the line BB shown in FIG. 1 is a line indicating the center position CL in the longitudinal direction.
  • the direction orthogonal to the longitudinal direction and the width direction is defined as the "thickness direction”
  • the wearer's skin side is defined as the “skin side”
  • the opposite side is defined as the "non-skin side”. ..
  • the diaper 1 has a central band-shaped region 12, a side flap 14, a leg gather 16, and a leg side gather 17.
  • Fastening tape 30 is attached to each of the pair of side flaps 14 at the rear portion 7.
  • the central band-shaped region 12 is a band-shaped region located in the central portion in the width direction composed of the front portion 3, the inseam portion 5, and the rear portion 7 (see FIG. 1).
  • the central band-shaped region 12 is a portion that absorbs and retains a liquid such as urine excreted by the wearer.
  • the central band-shaped region 12 mainly includes an absorber 21, a liquid-permeable top sheet 22 (liquid permeable sheet) that covers the absorber 21 from the skin side, and a liquid impermeable material that covers the absorber 21 from the non-skin side. It has a permeable and breathable back sheet 23 (liquid impermeable sheet) and an exterior sheet 27 provided on the most non-skin side of the diaper 1 (see FIG. 2).
  • top sheet 22 for example, a hydrophilic air-through non-woven fabric, a spunbonded non-woven fabric, or the like can be used.
  • back sheet 23 for example, a breathable resin film can be used.
  • exterior sheet 27 for example, a spunbonded non-woven fabric or the like can be used.
  • a liquid-permeable second sheet 35 is provided between the top sheet 22 and the absorber 21 in the thickness direction.
  • the second sheet 35 the same non-woven fabric or the like as the top sheet 22 can be used. However, it is desirable that the second sheet 35 is a non-woven fabric having a higher density than the top sheet 22. The reason for this will be explained later.
  • the second sheet 35 does not necessarily have to be provided in the diaper 1.
  • the diaper 1 When wearing the diaper 1, the diaper 1 is folded in half at the center position CL in the longitudinal direction, the rear part 7 is applied to the back side of the wearer, and the front part 3 is applied to the ventral side of the wearer. Be diapered. Then, as shown in FIG. 4, which will be described later, a pair of fastening tapes 30 and 30 provided on both sides in the width direction of the rear portion 7 are wound around the waistline by the wearer to the front side (ventral side), and the fastening tapes are wound. 30 is locked to the front portion 3. In such a wearing state, the diaper 1 has a vertical direction and a horizontal direction that intersect each other. The vertical direction is the direction along the longitudinal direction in FIG. 1, and the left-right direction is the direction along the width direction in FIG.
  • the portion located on the front side (ventral side) of the wearer is also referred to as the front portion 1F
  • the portion located on the rear side (dorsal side) of the wearer is also referred to as the rear portion 1B. That is, the front portion 1F is a portion located on the front side of the central position CL in the longitudinal direction of FIG. 1, and the rear portion 1B is a portion located on the rear side of the central position CL in the longitudinal direction of FIG.
  • the absorber 21 of the present embodiment covers the absorbent core 24 that absorbs excrement such as urine and the absorbent core 24 from both the skin side and the non-skin side in the thickness direction, respectively. It has a liquid-permeable core wrap sheet 25.
  • the absorber 21 (absorbent core 24) is arranged over the front portion 3, the inseam portion 5, and the rear portion 7.
  • the absorbent core 24 of the present embodiment has a substantially hourglass shape in a plan view as an example of a predetermined shape.
  • a liquid absorbent fiber such as pulp fiber or a liquid absorbent granular material such as a highly absorbent polymer (so-called SAP) can be used. Further, it may contain a liquid-absorbing material other than the liquid-absorbing fiber and the liquid-absorbing granules.
  • tissue paper can be used as the member constituting the core wrap sheet 25 for example.
  • the absorber 21 has a recess 21A recessed from the skin side to the non-skin side in the thickness direction in the central portion in the width direction (see FIGS. 1 and 2). The recess 21A will be described later.
  • the side flaps 14 are portions located on both sides of the central band-shaped region 12 in the width direction.
  • the side flap 14 is mainly composed of the skin side sheet 26 and the back sheet 23, and is formed over the front portion 3, the inseam portion 5, and the rear portion 7 (see FIGS. 1 and 2).
  • the skin-side sheet 26 is a skin-side member formed over the front portion 3, the inseam portion 5, and the rear portion 7, and is made of, for example, a non-woven fabric.
  • the skin side sheet 26 is also a member constituting the leg side gather 17 (three-dimensional gather).
  • a pair of elastic members around the legs that can be expanded and contracted in the longitudinal direction are provided between the top sheet 22 and the skin side sheet 26 at least in the inseam 5 of the central band-shaped region 12.
  • the leg circumference elastic member 28 is a member that imparts elasticity to the central band-shaped region 12 of the inseam 5.
  • the elastic member 28 around the leg is attached in a state of being extended in the longitudinal direction. As a result, the elastic member around the leg 28 exerts a contractile force along the longitudinal direction with respect to the inseam 5 of the central band-shaped region 12.
  • the pair of side flaps 14 are each provided with leg gather elastic members 15 that expand and contract along the longitudinal direction.
  • the leg gather elastic member 15 is an elastic member that expands and contracts along the longitudinal direction, and is a member that imparts elasticity to the leg circumference opening when the diaper 1 is worn. That is, the leg gather elastic member 15 is a leg circumference elastic member that fits the leg extension portion of the diaper 1 according to the wearer's leg. Further, the leg gather elastic member 15 imparts elasticity to the skin side sheet 26 and the back sheet 23 of the inseam 5, thereby forming the leg gather 16.
  • the leg side gathers 17 are three-dimensional gathers for preventing liquid leakage from the gaps between the legs.
  • the pair of leg side gathers 17 are formed along the longitudinal direction over the front portion 3, the inseam portion 5, and the rear portion 7 (see FIG. 1).
  • the leg side gathers 17 are formed inside the side flaps 14 so as to cover both edges of the central band-shaped region 12.
  • the leg side gather 17 (three-dimensional gather) is mainly composed of the inner part in the width direction of the skin side sheet 26 (see FIG. 2).
  • the inner edge of the skin side sheet 26 of the inseam 5 has elasticity due to the leg side gather elastic member 18 such as thread rubber.
  • the skin side sheet 26 is joined along the longitudinal direction at the joint portion 26A between the central band-shaped region 12 and the side flap 14.
  • the elasticity of the leg side gather elastic member 18 causes the area inside the joint portion 26A of the skin side sheet 26 to rise to the wearer's skin side with the joint portion 26A as a base point, and beside excrement and the like. Suppress leaks.
  • Fastening tapes 30 are arranged on both sides of the side flaps 14 in the width direction in the rear portion 7 of the diaper 1 (see FIG. 1). Then, by locking each fastening tape 30 to the target tape 29 described later, the waist opening and the leg opening of the diaper 1 are formed, and the position of the diaper 1 is fixed to the wearer's body (torso). (See Fig. 4).
  • a hook-and-loop fastener can be used as the fastening tape 30, for example.
  • a target tape 29 is provided on the front portion 3 of the central band-shaped region 12 (see FIG. 1).
  • the target tape 29 is arranged on the non-skin side of the exterior sheet 27 of the front portion 3.
  • the target tape 29 is a member that can be engaged with the fastening tape 30, and is formed of, for example, a non-woven fabric.
  • the target tape 29 constitutes a target area to which the fastening tape 30 is engaged.
  • the target region may be directly formed on the non-woven fabric of the outermost layer constituting the exterior sheet 27. Then, by engaging the fastening tape 30 with the target tape 29, the diaper 1 is worn.
  • FIG. 3 is a diagram illustrating the configuration of the odor sensor 60.
  • FIG. 3A is a schematic cross-sectional view showing a cross-sectional structure when the odor sensor 60 is viewed from the side surface
  • FIG. 3B is a diagram showing a state where the odor sensor 60 is viewed from the back surface side (the side of the bottom surface portion 61b). ..
  • the odor sensor 60 is an excretion odor detection device used by being attached to the outer surface of the diaper 1 (non-skin side surface of the exterior sheet 27), and by detecting the odor of excrement, feces and the like are excreted in the diaper 1. Detect that.
  • the odor sensor 60 of the present embodiment includes a housing 61, a detection unit 62, a control unit 63, a storage unit 64, a communication unit 65, an odor introduction unit 66, and a mounting unit 67. Further, the odor sensor 60 may be provided with a power supply unit (not shown) such as a battery.
  • the housing 61 is a member constituting the exterior of the odor sensor 60, and holds each part such as the detection unit 62 and the control unit 63 in the internal space.
  • the housing 61 has a substantially hemispherical cover portion 61a as shown in FIG. 3A and a flat bottom surface portion 61b.
  • the shape of the housing 61 is not limited to the hemisphere as shown in FIG. 3A.
  • Both the cover portion 61a and the bottom surface portion 61b are made of an insulating member such as resin, and the bottom surface portion 61b is provided with an odor guiding portion 66 and a mounting portion 67.
  • the bottom surface portion 61b serves as a contact surface with the diaper 1.
  • the detection unit 62 is a sensor that detects gas (odor) generated from excrement such as feces and outputs an excretion detection signal, and is a small gas sensor (for example, a size of about several mm) equipped with a gas sensitive element. It can be used. In this embodiment, for example, an oxide semiconductor type gas sensor TGS2602 (Figaro Giken) can be used.
  • the control unit 63 transfers data between each unit of the odor sensor 60 and controls the entire odor sensor 60, and the control controls a program stored in a predetermined memory by a CPU (Central Processing Unit). ) Is executed. Further, the control unit 63 is connected to a storage unit 64 for storing data and a communication unit 65 for transmitting and receiving data by wireless communication with an external information processing device. In the present embodiment, the control unit 63 receives, for example, an excretion detection signal from the detection unit 62, and determines the presence or absence of excretion based on the excretion detection program. When there is excretion, processing such as generating excretion information notifying that there is excretion, storing the excretion information in the storage unit 64, and transmitting the excretion information to an external information processing device via the communication unit 65 is performed. conduct.
  • a CPU Central Processing Unit
  • the excretion information may be transmitted to the smartphone, and the transmitted excretion information may be transmitted to the server together with the location information to propose the diaper changing place or the like to the user.
  • the odor sensor 60 may be configured to match the position information such as GPS and transmit the excretion information to the server.
  • the server can provide push notifications of the diaper 1 replacement timing and replacement location.
  • the information output to the information processing apparatus may not be excretion information, but may be, for example, raw data regarding excretion acquired by the odor sensor 60. In this case, the presence or absence of excretion is determined by a smartphone or the like.
  • the excretion detection program executed by the control unit 63 may use a conventionally known excretion program. For example, an excretion determination threshold is set, and when the excretion detection signal received from the detection unit 62 is within a predetermined first threshold range, it is determined that there is urination, and urination information indicating urination is generated, and the detection signal is a predetermined first. (Ii) If it is within the threshold range, it is determined that there is defecation, and defecation information indicating defecation is generated. Further, when the detection signal is within a predetermined third threshold range, it may be determined that there is flatulence and the excretion or flatulence information indicating the flatulence may be generated. Further, the presence or absence of excretion may be determined according to the change in the signal strength of the excretion detection signal received from the detection unit 62.
  • the odor introduction unit 66 is a portion for taking in the gas (odor) generated by excrement into the inside of the housing 61 and supplying it to the detection unit 62.
  • the odor introducing portion 66 is a portion where a part of the bottom surface portion 61b is cut out in the thickness direction, and has a through hole 66p penetrating the bottom surface portion 61b in the thickness direction.
  • the odor introduction portion 66 is formed so as to communicate with the side surface side of the housing 61, and the gas (odor) generated by excrement is introduced into the through hole 66p from the bottom and side portions of the odor sensor 60. It is easy to introduce.
  • a plurality of through holes 66p are provided at positions facing the detection unit 62 in the thickness direction, and the gas introduced from the odor introduction unit 66 and passing through the through holes 66p can easily reach the detection unit 62. It has become.
  • the shape and arrangement of the odor introducing portion 66 is not limited to this, and for example, the odor introducing portion 66 may be provided in the central region of the bottom surface portion 61b, or a plurality of odor introducing portions 66 may be provided. ..
  • the mounting portion 67 is for fixing the position of the odor sensor 60 by bringing the bottom surface portion 61b into contact with a predetermined region (contact portion SA described later) on the outer surface of the diaper 1 (non-skin side surface of the exterior sheet 27). It is a part. Since the odor sensor 60 is used repeatedly, it needs to be detachably attached to the diaper 1. Therefore, it is desirable that the mounting portion 67 is made of a member that can be removed after mounting and whose mounting position does not easily shift. In the present embodiment, for example, a hook-and-loop fastener made of polypropylene or the like and having a plurality of locking projections (not shown) on the surface can be used.
  • the odor sensor 60 can be firmly attached to the diaper 1.
  • an adhesive tape or the like as the mounting portion 67, it is possible to use a hook-and-loop fastener that does not easily weaken the engaging force even if it is repeatedly attached and detached, and that the mounting position can be easily adjusted and removed. More desirable.
  • FIG. 4 is a diagram showing a state in which the odor sensor 60 is attached to the diaper 1 worn by the wearer.
  • the odor sensor 60 can be used to accurately detect the presence or absence of excretion. ..
  • the odor sensor 60 brings the bottom surface portion 61b of the housing 61 into contact with the outer surface (exterior sheet 27) of the diaper 1 and detects the odor of excrement taken in from the odor introduction portion 66 by the detection unit 62. By doing so, excretion is detected. Therefore, when attaching the odor sensor 60 to the diaper 1, it is desirable to attach it at a position where the odor of excrement can easily reach the odor sensor 60. For example, when detecting defecation, it is desirable to attach the odor sensor 60 as close as possible to the wearer's anus.
  • the wearer since the wearer often sleeps in the supine position as shown in FIG. 4, it is difficult to attach the odor sensor 60 to the dorsal side near the anus for a long time. Therefore, in the present embodiment, from the absorber 21 (absorbable core 24) which is the front portion 1F of the diaper 1 (the region in front of the central position CL in the longitudinal direction of FIG. 1) and absorbs excrement.
  • the odor sensor 60 is attached to the area on the non-skin side in the thickness direction (see FIG. 4).
  • the portion that abuts the bottom surface portion 61b is also referred to as a “contact portion SA”.
  • FIG. 5 is a diagram illustrating the contact portion SA of the diaper 1.
  • FIG. 5 shows the front portion 1F of the diaper 1 in a stretched state as in FIG. 1.
  • the contact portion SA is a region of the front portion 1F that overlaps with the absorber 21.
  • the contact portion SA is located on the lower side of the absorber 21 in the vertical direction.
  • the lower region the region hatched by diagonal lines in FIG. 5 when L21F is divided into two equal parts is defined. It is desirable to use the contact portion SA.
  • the contact portion SA is located at the center portion of the absorber 21 in the left-right direction. It is desirable to be. Specifically, when the length (width) of the absorber 21 in the front portion 1F in the left-right direction (width) is W21F, the central region (hatched in a mesh pattern in FIG. 5) when W21F is divided into three equal parts. It is more desirable that the region) is the contact portion SA.
  • the absorber 21 has a substantially hourglass shape in a plan view and the width is not constant as in the present embodiment, the maximum value of the width of the absorber 21 is set to W21F (see FIG. 5).
  • the gas containing the odor of the stool easily escapes from the posterior side to the anterior side (dorsal side to ventral side) of the diaper 1. Therefore, by attaching the odor sensor 60 with the area displayed by the hatching in FIG. 5 as the contact portion SA, the odor of stool can easily pass through the contact portion SA, and excretion can be easily detected. Further, as shown in FIG. 4, when the wearer wears the diaper 1, the absorber 21 is not completely in close contact with the wearer's body (skin) at the inseam, and the absorber 21 and the wearer Spaces (gap) are likely to be formed between the body and the body. Therefore, by providing the contact portion SA in the vicinity of the inseam, the odor of stool is likely to accumulate in the region, and excretion can be more easily detected.
  • the diaper 1 of the present embodiment is provided with an odor guiding portion 40 that induces an odor of stool or the like on the skin side of the contact portion SA. That is, the odor of stool excreted from the wearer's anus and adhered to the skin side (top sheet 22) of the absorber 21 is guided to the contact portion SA side of the non-skin side (exterior sheet 27) by the odor guiding portion 40. By doing so, the odor of the stool can easily reach the odor sensor 60.
  • the odor guiding portion 40 is shown as a band-shaped (rectangular) region extending along the longitudinal direction (vertical direction).
  • Such an odor guiding unit 40 makes it possible to guide the odor of stool excreted from the anus (dorsal side) to the anterior side (ventral side) and to guide it from the skin side to the non-skin side.
  • the odor sensor 60 is brought into contact with the contact portion SA, it is desirable to attach the odor sensor 60 so that the odor introduction portion 66 overlaps with the odor induction portion 40 as shown in FIG.
  • the odor of the stool induced by the odor inducing unit 40 can be efficiently taken in from the odor introducing unit 66, so that the excrement can be detected with higher accuracy.
  • FIG. 6 is a diagram illustrating an example of the configuration of the odor induction unit 40.
  • FIG. 6 is a schematic cross-sectional view of the diaper 1 and the absorber 21, and corresponds to a diagram schematically shown by enlarging the vicinity of the central portion in the width direction of FIG.
  • a recess 21A in which a part of the skin side surface of the absorber 21 (absorbent core 24) is recessed toward the non-skin side is formed in the central portion in the width direction, and the region where the recess 21A is provided.
  • the odor guiding unit 40 Such a recess 21A is formed, for example, by scraping a predetermined region of the absorbent core 24 from the skin side in a groove shape. Therefore, in the odor guiding portion 40 (recessed portion 21A) of the contact portion SA, the basis weight of the absorber 21 (absorbent core 24) is smaller than that in the surrounding region, and the odor of stool thickens the absorber 21. It is easy to penetrate in the vertical direction.
  • the air permeability in the thickness direction of the odor inducer 40 is higher than the air permeability in the thickness direction in the region other than the odor inducer 40.
  • the odor guiding unit 40 can easily induce the odor of stool from the skin side to the non-skin side in the thickness direction.
  • the basis weight of the absorber 21 (absorbent core 24) in the odor guiding portion 40 (recessed portion 21A) of the present embodiment is preferably about 0 to 200 g / m 2 , and preferably about 100 g / m 2 . Is more preferable.
  • the basis weight of the absorber 21 (absorbent core 24) in the region other than the odor guiding portion 40 (recessed portion 21A) is about 370 g / m 2 .
  • the basis weight of the odor guiding portion 40 does not necessarily have to be uniform, and the basis weight of at least a part of the recess 21A of the absorber 21 is larger than the basis weight of the region other than the recess 21A. If it is smaller, the air permeability in the odor inducing unit 40 can be increased. In other words, if the basis weight at a certain position of the odor guiding portion 40 (recess 21A) is smaller than the basis weight at a certain position around it, the odor of stool is guided from the skin side to the non-skin side in the thickness direction. Can be made easier.
  • the odor of stool excreted on the skin side of the absorber 21 permeates the absorber 21 from the skin side to the non-skin side in the thickness direction, and the exterior sheet 27 It becomes easier to reach the odor sensor 60 (odor introduction unit 66) attached to the non-skin side. Therefore, the accuracy of excretion detection by the odor sensor 60 can be improved.
  • the thickness t21A of the absorber 21 in the recess 21A is smaller than the thickness t21 of the absorber 21 in the region other than the recess 21A (t21A ⁇ t21). That is, in the odor guiding portion 40, the distance through which the odor of stool permeates the absorber 21 in the thickness direction is shorter than in other regions, and it becomes easier to reach the non-skin side of the absorber 21. That is, in the odor guiding unit 40, the odor of stool can easily reach the odor sensor 60, and the accuracy of detecting excretion can be further improved.
  • the thickness t21A of the absorber 21 in the odor guiding portion 40 does not have to be uniform, and the thickness of the odor guiding portion 40 (recessed portion 21A) at a certain position is determined. If it is smaller than the thickness at a certain position in the surroundings, the odor of stool can be guided from the skin side to the non-skin side in the thickness direction, and the detection accuracy of defecation can be improved.
  • the back sheet 23 (liquid impermeable sheet) arranged on the non-skin side of the absorber 21 has a minute ventilation hole (impermeable) that allows only gas to pass through without allowing liquid to pass through.
  • the odor guiding portion 40 may be configured by a portion having such a minute ventilation hole widened and having a large diameter. That is, since the size of the ventilation holes of the back sheet 23 is widened at least in the region overlapping with the odor guiding portion 40 when viewed in the thickness direction, the air permeability is enhanced and the stool odor is increased in the thickness direction. Can be easily transmitted to the scent.
  • the resin sheet constituting the back sheet 23 is stretched in the plane direction (direction along at least one of the vertical direction and the horizontal direction).
  • the size of the ventilation holes provided in the resin sheet can be expanded.
  • the ventilation permeability in the thickness direction in the odor guiding portion 40 is increased, and the odor of stool can be easily reached by the odor sensor 60. Can be done. Thereby, the detection accuracy of excretion can be further improved.
  • a through hole may be provided to penetrate the exterior sheet 27 arranged on the non-skin side of the diaper 1 in the thickness direction, and the region provided with the through hole may be used as the odor guiding portion 40.
  • a plurality of through holes 27h are provided on the surface of the exterior sheet 27, and the region is the odor guiding portion 40.
  • through holes 27h are provided in a part of the exterior sheet 27, but a plurality of through holes 27h may be provided over the entire area of the exterior sheet 27.
  • a perforated non-woven fabric or the like may be used as the exterior sheet 27.
  • a plurality of through holes 27h smaller than the odor introduction portion 66 of the odor sensor 60 are provided on the surface of the exterior sheet 27, but the through holes 27h having a size larger than that of the odor introduction portion 66 are the exterior. Only one may be provided on the surface of the sheet 27. That is, a predetermined region of the exterior sheet 27 may be hollowed out according to the size of the odor sensor 60 (odor introduction portion 66). With such a configuration, the air permeability in the odor inducing unit 40 can be further increased.
  • the air permeability at a certain position of the contact portion SA to which the odor sensor 60 is attached is set to be higher than the air permeability at a certain position other than the contact portion SA. It is configured.
  • the odor of stool easily flows in the thickness direction, and the odor of stool or the like excreted on the skin side easily reaches the odor sensor 60 attached to the non-skin side. Therefore, the accuracy of excretion detection can be improved.
  • a recess 21A of the absorber 21, a minute hole in the back sheet 23, and a through hole 27h in the exterior sheet 27 are provided.
  • the diaper 1 has at least one of the above configurations, it is possible to induce the odor of stool and improve the detection accuracy by the odor sensor 60.
  • the "ventilation permeability" is measured as follows, for example, using a Frazier air permeability tester, in accordance with the air permeability test method (8.26.11A) specified in JIS L 1096-2010. be able to. First, a plurality of test pieces (for example, five) are collected from the sheet member to be tested. Then, an orifice (air hole) having a predetermined diameter is attached to one end side of the cylinder of the testing machine, and a test piece is attached to the other end side. Next, the tilted barometer is adjusted to 125 Pa by an adjusting resistor, and the pressure indicated by the vertical barometer at that time is measured.
  • the amount of air passing through the test piece is obtained from the conversion table attached to the testing machine. This operation is performed for each of the five test pieces, and the average value is calculated. In this way, the air permeability of the sheet member to be tested can be calculated.
  • the water contained in the excrement moves in the thickness direction inside the absorber 21 while being absorbed by the absorber 21, so that the excrement itself, which is the source of the odor, is transmitted from the skin side of the absorber 21.
  • the odor of excrement can be more easily detected by the odor sensor 60.
  • the accuracy of excretion detection is improved by increasing the transmittance of stool in the thickness direction of the absorber 21.
  • a high-density portion in which the density of a part of the absorber 21 is higher than the density in the other region may be provided, and the odor-inducing portion 40 may be formed by the high-density portion.
  • the total density of the liquid absorbent fiber (pulp) constituting the absorber 21 and the highly absorbent polymer (SAP) is 120 kg / m 3 or more, and 130 It is more desirable that it is ⁇ 160 kg / m 3 .
  • the movement in the thickness direction is promoted by the capillary phenomenon while the stool juice permeates through the absorber 21, and the odor generated from the stool juice reaches the odor sensor 60. It becomes easier to do.
  • the total density of the liquid absorbent fiber (pulp) constituting the absorber 21 and the highly absorbent polymer (SAP) is 100 kg / m 3 or less.
  • a through hole that penetrates the top sheet 22 (liquid permeable sheet) in the thickness direction may be provided, and the region where the through hole is provided may be used as the odor guiding portion 40.
  • a plurality of through holes 22h are provided on the surface of the top sheet 22.
  • the density of the second sheet 35 described above is higher than the density of the top sheet 22.
  • the second sheet 35 is a sheet member laminated on the non-skin side of the top sheet 22 in the thickness direction. Therefore, the water (stool juice) contained in the stool adhering to the surface of the top sheet 22 moves from the top sheet 22 to the absorber 21 via the second sheet 35 in the thickness direction.
  • stool juice is likely to be drawn into the second sheet 35 side due to the capillary phenomenon. That is, in the odor guiding portion 40, the stool juice easily moves from the skin side to the non-skin side in the thickness direction. As a result, the transmittance of the stool in the thickness direction is further increased, and the odor of the stool can be easily reached by the odor sensor 60. Therefore, the accuracy of excretion detection can be further improved.
  • the transmittance in the thickness direction of the stool at a certain position of the contact portion SA to which the odor sensor 60 is attached is the thickness of the stool at a certain position other than the contact portion SA. It is configured to be higher than the transmittance in the direction.
  • the water (stool juice) contained in the stool easily moves from the skin side to the non-skin side in the thickness direction, and the odor generated from the stool juice also easily moves to the non-skin side. Therefore, the odor of stool can easily reach the odor sensor 60, and the accuracy of excretion detection can be improved.
  • the "feces permeability" can be measured as follows using "artificial stool” having a viscosity and fluidity equivalent to that of "stool”.
  • a portion of the absorber 21 to be measured (for example, a portion other than the odor inducing portion 40 and the odor inducing portion 40) is cut out together with the top sheet 22 and the second sheet 35 provided on the skin side, and the test piece.
  • the back sheet 23 and the exterior sheet 27 provided on the non-skin side are removed from the absorber 21.
  • four sheets of tissue paper (15 g / m 2 ) whose weight has been measured in advance are laid on the non-skin side of the test piece.
  • a 900 g weight is placed on the skin side of the test piece and left for 3 minutes.
  • a metal cylinder (disk) having a diameter of 90 mm and a weight of 900 g can be used.
  • the weight is removed from the test piece, and the test piece is moved from the top of the tissue paper.
  • the amount of artificial stool that has permeated the sample and soaked into the tissue paper can be obtained as the weight increase of the tissue paper.
  • the transmittance of the artificial stool is calculated from the weight of the dropped artificial stool (2 g) and the weight of the artificial stool that has passed through the test piece.
  • the artificial stool used for the measurement contains ion-exchanged water: 73%, NaCl: 1%, glycerin: 13.9%, NaClC: 2%, cellulose 10%, colored powder 0.1%, and has a viscosity. Can be adjusted to 2000 mPa ⁇ S. The viscosity can be finely adjusted with ion-exchanged water. Further, the size of the test piece and the time for placing the weight on the test piece and applying the load may be changed in consideration of the usage situation of the diaper 1.
  • the odor of stool and the water (stool juice) contained in the stool are moved in the plane direction (longitudinal direction and width direction in FIG. 1), so that the odor of stool can easily reach the odor sensor 60. is doing.
  • the stool is discharged from the wearer's anus (rear side of the diaper 1), whereas the contact portion SA for attaching the odor sensor 60 is provided on the front side of the diaper 1. ing. Therefore, by facilitating the movement of the odor of stool from the rear side to the front side of the diaper 1, the accuracy of detecting excrement by the odor sensor 60 can be further improved.
  • the odor guiding portion 40 (recessed portion 21A, etc.) is moved from the posterior side (dorsal side) to the anterior side (ventral side) in the longitudinal direction. It is arranged so as to extend. That is, the odor guiding portion 40 is arranged so as to straddle the central position CL in the longitudinal direction in the front-rear direction (see FIG. 1). As a result, the odor of the stool discharged from the anus on the posterior side in the longitudinal direction can be easily moved to the anterior side in the longitudinal direction along the odor guiding portion 40. With such a configuration, the odor of stool can be easily detected by the odor sensor 60 on the front side in the longitudinal direction, so that the accuracy of detecting excrement can be improved.
  • the odor guiding portion 40 is arranged so as to straddle the rear end of the contact portion SA in the longitudinal direction. Since the area where the odor sensor 60 is actually attached to the diaper 1 is the contact portion SA, in order to improve the detection accuracy of excrement, the odor of the stool excreted in the anus is applied to the contact portion. It is necessary to induce to SA. On the other hand, the odor guiding portion 40 extends from the outside of the contact portion (rear side of the rear end of the contact portion SA) to the inside of the contact portion (front side of the rear end of the contact portion SA). If they are continuously provided, the odor of the stool excreted in the anus can be easily guided to the contact portion SA, and the excretion detection accuracy by the odor sensor 60 can be further improved.
  • the odor guiding portion 40 is the contact portion. It is arranged so as to straddle the rear end (center position CL) of the SA.
  • a second sheet 35 having a higher density than the top sheet 22 is arranged between the top sheet 22 and the absorber 21 in the thickness direction.
  • the second sheet 35 functions as a diffusion sheet for diffusing the stool juice in the plane direction (longitudinal direction and width direction), and the odor guiding portion 40 can easily move the stool juice from the rear side to the front side in the longitudinal direction. can do.
  • the odor of stool is easily guided to the odor sensor 60, and the detection accuracy can be further improved.
  • the odor guiding unit 40 provided in the diaper 1 may have a configuration other than that shown in FIG. 7A and 7B are diagrams illustrating a modified example of the odor inducing unit 40.
  • an embossed portion 21E squeezed portion in which the absorber 21 is squeezed in the thickness direction is provided in a predetermined region of the absorber 21, and the odor inducing portion 40 is configured by the embossed portion 21E. ..
  • the embossed portion 21E is a linear squeezed portion continuously squeezed along the longitudinal direction of the absorber 21, and in the portion where the embossed portion 21E is provided, the absorber 21 is compared with other regions. The density is high.
  • the embossed portion 21E may be formed in a linear shape by arranging a plurality of small dot-shaped pressed portions along the longitudinal direction.
  • a slit portion 21S in which the central portion in the width direction of the absorber 21 is cut out in the thickness direction is provided, and the slit portion 21S constitutes the odor guiding portion 40.
  • the slit portion 21S is formed in a region extending in a band shape along the longitudinal direction, and the basis weight, density, and thickness are all smaller than those of the recess 21A (basis weight, Both density and thickness are zero). Therefore, by providing such a slit portion 21S, in the diaper 1, stool juice and odor can be easily moved in the longitudinal direction and the thickness direction, and the excretion detection accuracy by the odor sensor 60 can be improved.
  • the slit portion 21S is arranged so as to straddle the central position CL in the longitudinal direction, and it is desirable that the slit portion 21S is arranged so as to straddle the rear end of the contact portion SA. More desirable.
  • the slit portion 21S (odor guiding portion 40) extends from the outside of the contact portion (rear side of the rear end of the contact portion SA) to the inside of the contact portion (front side of the rear end of the contact portion SA). Since the stools are continuously provided, the odor and stool juice of the stool excreted in the anus can be easily guided to the contact portion SA, and the excretion detection accuracy by the odor sensor 60 can be further improved.
  • the odor guiding portion 40 is provided in the diaper 1 to guide the odor of stool or stool juice to the contact portion SA, if the mounting position of the odor sensor 60 is not appropriate, the detection accuracy may deteriorate. be. That is, in order to improve the detection accuracy of excrement, it is necessary to attach the odor sensor 60 to the diaper 1 so that the position of the odor introducing portion 66 of the odor sensor 60 overlaps with the position of the odor guiding portion 40. Therefore, in the contact portion SA of the diaper 1, it is desirable to provide a guide display 50 for guiding the mounting position of the odor sensor 60 on the outer surface (exterior sheet 27) of the diaper 1. For example, in FIG. 5, a ring-shaped guide display 50 aligned with the outer edge of the odor sensor 60 (housing 61) is provided at an optimum position for attaching the odor sensor 60 in the contact portion SA.
  • the user when attaching the odor sensor 60 to the diaper 1, the user can attach the odor sensor 60 to an appropriate position according to the guidance display 50 without hesitation.
  • the configuration of the guidance display 50 is not limited to the example shown in FIG. 5, and by combining characters and figures, the mounting position of the odor sensor 60 can be displayed more clearly, and in addition to the mounting position of the odor sensor 60.
  • the position of the odor guiding unit 40 may be displayed.
  • the guidance display 50 includes information indicating the position of the odor sensor 60 where the odor introduction unit 66 should be arranged.
  • the guidance display 50 may include information instructing the odor sensor 60 to be attached so that the odor introduction unit 66 is on the lower side in the vertical direction.
  • FIG. 8 is a plan view of the pants disposable diaper 2 (hereinafter, also referred to as “diaper 2”) in a deployed and extended state.
  • the diaper 2 of the second embodiment has a longitudinal direction, a width direction, and a thickness direction that intersect each other in the unfolded state of FIG. 8, similarly to the diaper 1 of the first embodiment. Then, in the longitudinal direction of the diaper 2, the region on the front side of the central position CL is referred to as the front portion 2F, and the region on the rear side of the central position CL is referred to as the rear portion 2B. Further, the diaper 2 has a vertical direction, a horizontal direction, and a front-back direction as three directions orthogonal to each other in the pants-shaped state when worn.
  • the diaper 2 is a so-called three-piece type diaper and has three parts 21, 70 and 80. That is, the diaper 2 has an absorber 21 as a first part, which is applied to the crotch part of the wearer and absorbs excrement such as urine, and as a second part, the front side to the ventral side of the wearer. It has a front band member 70 that covers it, and as a third component, it has a rear band member 80 that covers the back side from the rear side of the wearer.
  • the front side band member 70 (front body) and the rear side band member 80 (rear body) are arranged in parallel with each other in the longitudinal direction (vertical direction) of the absorber 21.
  • the absorber 21 is hung between the two.
  • the front upper end of the absorber 21 is joined and fixed to the skin side of the front band member 70, and the rear upper end of the absorber 21 is joined and fixed to the skin side of the rear band member 80. It has a substantially H shape.
  • the absorber 21 is folded in half at the center position CL in the longitudinal direction. That is, it is bent back and forth at the lower crotch.
  • the front side band member 70 and the rear side band member 80 facing each other have a side edge joint portion 70ew and a side edge joint portion 80ew (that is, left and right) which are portions that should abut on the wearer's flank.
  • these band members 70 and 80 are formed into an annular shape.
  • a pants-shaped shape is formed in which an opening around the waist and a pair of openings around the legs are formed.
  • the absorber 21 of the diaper 2 has substantially the same configuration as the absorber 21 of the diaper 1. That is, the absorber 21 includes a liquid-absorbing absorbent core 24 and a liquid-permeable core wrap sheet 25 that covers the absorbent core 24. Further, a liquid-permeable top sheet 22 that covers the absorbent core 24 from the skin side is provided on the skin side of the absorber 21 in the thickness direction, and is provided between the absorbent core 24 and the top sheet 22 in the thickness direction. , A liquid permeable second sheet 35 is provided. On the non-skin side of the absorber 21 in the thickness direction, a liquid-impermeable back sheet 23 that covers the absorbent core 24 from the non-skin side and an exterior sheet 27 are provided.
  • the front side band member 70 (front body) is formed by joining the non-woven fabrics 71 and 72 in two layers in the thickness direction.
  • a plurality of elastic members around the waist such as rubber threads 75, 75 ... are arranged between the two nonwoven fabrics 71 and 72 along the left-right direction.
  • the waistline elastic members 75, 75 ... Are joined and fixed to the nonwoven fabrics 71 and 72 in a state of being stretched in the left-right direction while being inserted side by side in the up-down direction with an interval in the up-down direction.
  • the front band member 70 can be expanded and contracted in the left-right direction (width direction).
  • the rear band member 80 (rear body) is formed by joining the nonwoven fabrics 81 and 82 in two layers in the thickness direction.
  • a plurality of elastic members around the waist such as rubber threads 85, 85 ... are arranged between the two nonwoven fabrics 81, 82 along the left-right direction.
  • the waistline elastic members 85, 85 ... Are joined and fixed to the non-woven fabrics 81, 82 in a state of being stretched in the left-right direction while being inserted side by side in the up-down direction with an interval in the up-down direction.
  • the rear band member 80 can be expanded and contracted in the left-right direction (width direction).
  • diaper 2 can detect excretion by attaching an odor sensor 60 (excretion odor detecting device) to the outside (non-skin side) of the exterior sheet 27.
  • the contact portion SA which is a portion that abuts the bottom surface portion 61b when the odor sensor 60 is attached, is on the front side (front portion 2F) of the central position CL in the longitudinal direction of the diaper 2 and the absorber 21 (absorbent core). It is desirable that the area overlaps with 24). Further, it is the lower region when the length L21F in the longitudinal direction of the absorber 21 is divided into two equal parts, and the center when the length (width) W21F in the width direction of the absorber 21 is divided into three equal parts. It is more desirable to be in the area of.
  • An odor guiding portion 40 similar to that of the diaper 1 is provided in the area on the skin side of the contact portion SA (see FIG. 6), and the odor guiding portion 40 transfers the odor of stool to the odor sensor 60. It can be made easier to reach. That is, in the diaper 2 of the second embodiment as well as the diaper 1, the air permeability at a certain position of the contact portion SA and the transmittance of the stool (stool juice) are the air permeability at a certain position other than the contact portion SA. It is configured to be higher than the transmittance and the transmittance of stool (stool juice).
  • the second sheet 35 (diffusion sheet) is arranged between the top sheet 22 and the absorber 21 in the thickness direction, but separately from the second sheet 35, a diffusion sheet for diffusing the liquid is provided. It may be arranged between the absorber 21 and the back sheet 23. With such a configuration, the moisture of the stool that has passed through the absorber 21 can be diffused in the lower layer of the absorber 21 so that the odor of the stool can easily reach the odor sensor 60.
  • one recess 21A constituting the odor guiding portion 40 is provided in the central portion in the width direction of the diaper 1, but a plurality of recesses 21A may be provided.
  • the portion where the plurality of recesses 21A are arranged in the longitudinal direction and the width direction becomes the odor guiding portion 40.

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  • Engineering & Computer Science (AREA)
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Abstract

An absorbent article (1) comprising an absorbent body (21) and having a contact section (SA) that is in contact with an excretory odor detecting device (60) for detecting the odor of stool when said excretory odor detecting device (60) is removably attached to a portion which is the front side of the absorbent article when worn and which is further to the non-skin side in comparison to the absorbent body (21), the absorbent article being characterized by having, further to the skin side in comparison to the contact section (SA), an odor guiding section (40) for guiding the odor of stool.

Description

吸収性物品Absorbent article
　本発明は、吸収性物品に関する。 The present invention relates to an absorbent article.
　従来、吸収性物品として、使い捨ておむつが知られている。このような使い捨ておむつの使用時（着用時）において、排便や排尿が行われたことを第三者（育児者や介護者等）に知らせるために、おむつにセンサーを取り付けて、***物を検知する方法が提案されている。例えば、特許文献１には、尿や便によって発生するするガスや蒸気を検知可能なセンサー（補助物品）をおむつの外側（着用者の衣類と面する側）に取り外し可能に取り付けることによって***が行われたことを検知する、***検知システムが開示されている。 Conventionally, disposable diapers have been known as absorbent articles. When using (wearing) such disposable diapers, a sensor is attached to the diaper to detect excrement in order to notify a third party (childcare worker, caregiver, etc.) that defecation or urination has occurred. How to do it is proposed. For example, in Patent Document 1, excretion is performed by detachably attaching a sensor (auxiliary article) capable of detecting gas or vapor generated by urine or stool to the outside of the diaper (the side facing the wearer's clothing). An excretion detection system that detects what has been done is disclosed.
ＵＳ２０１８／０１４７０９６Ａ１公報US2018 / 0147096A1 Publication
　しかしながら、特許文献１のように、おむつの外側に着脱式のセンサーを取り付けて***を検知する***検知システムでは、おむつの内側に***された***物をうまく検知することができない場合があった。特に、***物が便である場合には、尿と比較して流動性が低く、おむつの内側から外側に便が移動し難いため、便の臭気がセンサーまで到達し難く、排便の検知精度が悪くなるという問題が生じていた。 However, as in Patent Document 1, the excretion detection system that detects excretion by attaching a removable sensor to the outside of the diaper may not be able to detect the excrement excreted inside the diaper well. In particular, when the excrement is stool, the fluidity is lower than that of urine, and it is difficult for the stool to move from the inside to the outside of the diaper. There was a problem of getting worse.
　本発明は、上記のような従来の問題に鑑みてなされたものであって、その目的は、吸収性物品において、外付けのセンサーを用いて排便を検知する際の検知精度を向上させる、ことにある。 The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to improve the detection accuracy when detecting defecation by using an external sensor in an absorbent article. It is in.
　上記目的を達成するための主たる発明は、吸収体を備え、着用時に前側となる部分であって、且つ、前記吸収体よりも非肌側となる部分に、便の臭気を検知する***臭気検知装置を取り外し可能に取り付ける際に当該***臭気検知装置に当接する当接部を有する吸収性物品であって、前記当接部よりも肌側に、前記便の臭気を誘導する臭気誘導部を有する、ことを特徴とする吸収性物品である。 The main invention for achieving the above object is to detect the odor of excretion, which is provided with an absorber and is on the front side when worn, and is on the non-skin side of the absorber. An absorbent article having an abutting portion that comes into contact with the excretory odor detecting device when the device is detachably attached, and has an odor guiding portion that induces the odor of the stool on the skin side of the abutting portion. , It is an absorbent article characterized by.
　本発明の他の特徴については、本明細書及び添付図面の記載により明らかにする。 Other features of the present invention will be clarified by the description in the present specification and the accompanying drawings.
　本発明によれば、吸収性物品において、外付けのセンサーを用いて排便を検出する際の検出精度を向上させることができる。 According to the present invention, it is possible to improve the detection accuracy when detecting defecation by using an external sensor in an absorbent article.
テープ型使い捨ておむつ１が展開かつ伸長された状態における平面図である。It is a top view in the state which the tape type disposable diaper 1 is expanded and extended. 図１に示す線Ａ－Ａでの断面図である。It is sectional drawing in line AA shown in FIG. 図３Ａは、臭気センサー６０を側面から見たときの断面構造について表す断面模式図である。図３Ｂは、臭気センサー６０を裏面側から見た状態を表す図である。FIG. 3A is a schematic cross-sectional view showing the cross-sectional structure of the odor sensor 60 when viewed from the side surface. FIG. 3B is a diagram showing a state in which the odor sensor 60 is viewed from the back surface side. 着用者によって着用されているおむつ１に臭気センサー６０を取り付けた状態について表す図である。It is a figure which shows the state which attached the odor sensor 60 to the diaper 1 worn by the wearer. おむつ１の当接部ＳＡについて説明する図である。It is a figure explaining the contact portion SA of the diaper 1. 臭気誘導部４０の構成の一例について説明する図である。It is a figure explaining an example of the structure of the odor induction part 40. 図７Ａ及び図７Ｂは、臭気誘導部４０の変形例について説明する図である。7A and 7B are diagrams illustrating a modified example of the odor inducing unit 40. パンツ使い捨ておむつ２が展開かつ伸長された状態における平面図である。It is a top view in the state which the pants disposable diaper 2 is expanded and extended.
　本明細書及び添付図面の記載により、少なくとも以下の事項が明らかとなる。
　吸収体を備え、着用時に前側となる部分であって、且つ、前記吸収体よりも非肌側となる部分に、便の臭気を検知する***臭気検知装置を取り外し可能に取り付ける際に当該***臭気検知装置に当接する当接部を有する吸収性物品であって、前記当接部よりも肌側に、前記便の臭気を誘導する臭気誘導部を有する、ことを特徴とする吸収性物品。 The description of this specification and the accompanying drawings will clarify at least the following matters.
The excretory odor when the excretion odor detection device that detects the odor of stool is detachably attached to the part that is provided with an absorber and is on the front side when worn and is on the non-skin side of the absorber. An absorbent article having an abutting portion that abuts on the detection device, the absorbent article having an odor inducing portion that induces the odor of the stool on the skin side of the abutting portion.
　このような吸収性物品によれば、吸収性物品を着用した状態で着用者が便等を***した際に、着用者の肛門から排出された便の臭気を、臭気誘導部によって、泄臭気検知装置が取り付けられる当接部まで誘導することができる。これにより、便の臭気が***臭気検知装置に到達し易くなり、便等の***物の検出精度を向上させることができる。 According to such an absorbent article, when the wearer excretes stool or the like while wearing the absorbent article, the odor of the stool discharged from the wearer's anus is detected by the odor inducer. It can be guided to the abutment where the device is mounted. As a result, the odor of stool can easily reach the excrement odor detecting device, and the accuracy of detecting excrement such as stool can be improved.
　かかる吸収性物品であって、前記当接部の或る位置において、前記吸収性物品の厚さ方向に便の臭気を透過させる際の通気透過率は、前記当接部以外の部分の或る位置において、前記厚さ方向に便の臭気を透過させる際の通気透過率よりも大きい、ことが望ましい。 In such an absorbent article, the air permeability when the odor of stool is permeated in the thickness direction of the absorbent article at a certain position of the abutting portion is a portion other than the abutting portion. It is desirable that the position is larger than the air permeability when the odor of stool is permeated in the thickness direction.
　このような吸収性物品によれば、便の臭気が厚さ方向に流れ易くなり、吸収性物品の肌側に***された便等の臭気が、非肌側に取り付けられた***臭気検知装置に到達し易くなる。したがって、***検知精度を向上させることができる。 According to such an absorbent article, the odor of stool easily flows in the thickness direction, and the odor of stool or the like excreted on the skin side of the absorbent article is transferred to the excretory odor detecting device attached to the non-skin side. It will be easier to reach. Therefore, the excretion detection accuracy can be improved.
　かかる吸収性物品であって、前記臭気誘導部における前記吸収体の坪量は、前記臭気誘導部の周囲における前記吸収体の坪量よりも小さい、ことが望ましい。 It is desirable that the basis weight of the absorber in the odor-inducing portion of the absorbent article is smaller than the basis weight of the absorber in the vicinity of the odor-inducing portion.
　このような吸収性物品によれば、吸収体の坪量が小さいことにより、臭気誘導部において便の臭気が吸収体を厚さ方向の肌側から非肌側に透過し易くなる。これにより、便の臭気が、非肌側に取り付けられた***臭気検知装置に到達し易くなり、***検知精度を向上させることができる。 According to such an absorbent article, since the basis weight of the absorber is small, the odor of stool easily permeates the absorber from the skin side to the non-skin side in the thickness direction at the odor induction portion. As a result, the odor of the stool can easily reach the excretion odor detecting device attached to the non-skin side, and the excretion detection accuracy can be improved.
　かかる吸収性物品であって、前記臭気誘導部における前記吸収体の厚みは、前記臭気誘導部の周囲における前記吸収体の厚みよりも小さい、ことが望ましい。 It is desirable that the thickness of the absorber in the odor-inducing portion of the absorbent article is smaller than the thickness of the absorber in the periphery of the odor-inducing portion.
　このような吸収性物品によれば、吸収体の厚みが薄いことにより、臭気誘導部において便の臭気が吸収体を厚さ方向の肌側から非肌側に透過する際の距離が短くなる。これにより、便の臭気が、非肌側に取り付けられた***臭気検知装置に到達し易くなり、***検知精度を向上させることができる。 According to such an absorbent article, the thin thickness of the absorber shortens the distance when the odor of stool permeates the absorber from the skin side to the non-skin side in the thickness direction at the odor inducing portion. As a result, the odor of the stool can easily reach the excretion odor detecting device attached to the non-skin side, and the excretion detection accuracy can be improved.
　かかる吸収性物品であって、前記吸収体の非肌側に、複数の通気孔を備えた液不透過シートを有し、前記吸収性物品の厚さ方向に見たときに、少なくとも前記臭気誘導部と重複する領域において、前記液不透過シートが平面方向に延伸されている、ことが望ましい。 The absorbent article has a liquid-impermeable sheet provided with a plurality of vents on the non-skin side of the absorbent body, and at least the odor induction when viewed in the thickness direction of the absorbent article. It is desirable that the liquid impermeable sheet is stretched in the plane direction in the region overlapping the portion.
　このような吸収性物品によれば、液不透過シート（バックシート）が延伸されることにより、通気孔の大きさが広がって、当該通気孔を通過して便の臭気が厚さ方向に移動し易くなる。これにより、便の臭気が、非肌側に取り付けられた***臭気検知装置に到達し易くなり、***検知精度を向上させることができる。 According to such an absorbent article, by stretching the liquid impermeable sheet (back sheet), the size of the ventilation holes is expanded, and the odor of the stool moves in the thickness direction through the ventilation holes. It becomes easier to do. As a result, the odor of the stool can easily reach the excretion odor detecting device attached to the non-skin side, and the excretion detection accuracy can be improved.
　かかる吸収性物品であって、前記吸収性物品の最も非肌側に配置された外装シートを有し、前記臭気誘導部において、前記外装シートを厚さ方向に貫通する貫通孔が設けられている、ことが望ましい。 The absorbent article has an exterior sheet arranged on the most non-skin side of the absorbent article, and a through hole penetrating the exterior sheet in the thickness direction is provided in the odor guiding portion. , Is desirable.
　このような吸収性物品によれば、吸収性物品の外装を構成する外装シートに貫通孔が設けられていることにより、当該貫通孔を通過して便の臭気が厚さ方向に移動し易くなる。
これにより、便の臭気が、非肌側に取り付けられた***臭気検知装置に到達し易くなり、***検知精度を向上させることができる。 According to such an absorbent article, since the exterior sheet constituting the exterior of the absorbent article is provided with a through hole, the odor of stool easily moves in the thickness direction through the through hole. ..
As a result, the odor of the stool can easily reach the excretion odor detecting device attached to the non-skin side, and the excretion detection accuracy can be improved.
　かかる吸収性物品であって、前記当接部の或る位置において、前記吸収性物品の厚さ方向に人工便を透過させる際の人工便透過率は、前記当接部以外の部分の或る位置において、前記厚さ方向に人工便を透過させる際の人工便透過率よりも大きい、ことが望ましい。 In such an absorbent article, the artificial stool transmittance when the artificial stool is permeated in the thickness direction of the absorbent article at a certain position of the abutting portion is a portion other than the abutting portion. It is desirable that the position is larger than the artificial stool transmittance when the artificial stool is permeated in the thickness direction.
　このような吸収性物品によれば、便に含まれる水分（便汁）が厚さ方向に透過し易くなり、吸収性物品の肌側に***された便（便汁）から発生する臭気を、非肌側に取り付けられた***臭気検知装置まで到達させ易くすることができる。したがって、***検知精度を向上させることができる。 According to such an absorbent article, the water (stool juice) contained in the stool easily permeates in the thickness direction, and the odor generated from the stool (stool juice) excreted on the skin side of the absorbent article is eliminated. It is possible to easily reach the excretory odor detecting device attached to the non-skin side. Therefore, the excretion detection accuracy can be improved.
　かかる吸収性物品であって、前記臭気誘導部における前記吸収体の密度は、前記臭気誘導部の周囲における前記吸収体の密度よりも大きい、ことが望ましい。 It is desirable that the density of the absorber in the odor-inducing portion of the absorbent article is higher than the density of the absorber in the vicinity of the odor-inducing portion.
　このような吸収性物品によれば、臭気誘導部において、吸収体の密度が大きいことによる毛細管現象が生じやすくなり、便汁の厚さ方向への移動が促進される。これにより、便汁から発生する臭気が、***臭気検知装置まで到達し易くなり、***検知精度を向上させることができる。 According to such an absorbent article, the capillary phenomenon is likely to occur due to the high density of the absorber in the odor inducing portion, and the movement of the stool juice in the thickness direction is promoted. As a result, the odor generated from the stool juice can easily reach the excretion odor detecting device, and the excretion detection accuracy can be improved.
　かかる吸収性物品であって、前記吸収体よりも肌側に、液透過性シートを有し、前記臭気誘導部において、前記液透過性シートを厚さ方向に貫通する貫通孔が設けられている、ことが望ましい。 In such an absorbent article, a liquid permeable sheet is provided on the skin side of the absorbent body, and a through hole penetrating the liquid permeable sheet in the thickness direction is provided in the odor inducing portion. , Is desirable.
　このような吸収性物品によれば、臭気誘導部において、液透過性シート（トップシート）に貫通孔が設けられていることにより、当該貫通孔を通過して便汁が厚さ方向に移動し易くなる。これにより、便汁から発生する臭気が、***臭気検知装置まで到達し易くなり、***検知精度を向上させることができる。 According to such an absorbent article, in the odor inducing portion, the liquid permeable sheet (top sheet) is provided with a through hole, so that the stool juice moves in the thickness direction through the through hole. It will be easier. As a result, the odor generated from the stool juice can easily reach the excretion odor detecting device, and the excretion detection accuracy can be improved.
　かかる吸収性物品であって、前記臭気誘導部において、前記液透過性シートと前記吸収体との間に、前記液透過性シートよりも密度が高いセカンドシートが設けられている、ことが望ましい。 It is desirable that such an absorbent article is provided with a second sheet having a higher density than the liquid permeable sheet between the liquid permeable sheet and the absorbent body in the odor inducing portion.
　このような吸収性物品によれば、臭気誘導部において、液透過性シートの非肌側に密度が高いセカンドシートが設けられていることにより、毛細管現象によって、液透過性シートからセカンドシート側に便汁が引き込まれやすくなる。すなわち、便汁が厚さ方向の非肌側に移動し易くなる。これにより、便汁から発生する臭気が、***臭気検知装置まで到達し易くなり、***検知精度を向上させることができる。 According to such an absorbent article, in the odor inducing portion, a second sheet having a high density is provided on the non-skin side of the liquid permeable sheet, so that the liquid permeable sheet moves from the liquid permeable sheet to the second sheet side due to the capillary phenomenon. The stool juice is easily drawn in. That is, the stool juice easily moves to the non-skin side in the thickness direction. As a result, the odor generated from the stool juice can easily reach the excretion odor detecting device, and the excretion detection accuracy can be improved.
　かかる吸収性物品であって、前記臭気誘導部は、前記吸収性物品を展開且つ伸長させた状態の長手方向において、中央位置を跨いで配置されている、ことが望ましい。 It is desirable that the odor-inducing portion of the absorbent article is arranged so as to straddle the central position in the longitudinal direction in which the absorbent article is expanded and extended.
　このような吸収性物品によれば、長手方向の後側にて肛門から排出された便の臭気を、臭気誘導部に沿って長手方向の前側へ移動させやすくすることができる。これにより、長手方向の前側に設置された***臭気検知装置によって便の臭気が検出され易くなり、***物の検知精度を向上させることができる。 According to such an absorbent article, the odor of stool discharged from the anus on the posterior side in the longitudinal direction can be easily moved to the anterior side in the longitudinal direction along the odor induction portion. As a result, the odor of stool can be easily detected by the excrement odor detecting device installed on the front side in the longitudinal direction, and the accuracy of detecting excrement can be improved.
　かかる吸収性物品であって、前記臭気誘導部は、前記吸収性物品を展開且つ伸長させた状態の長手方向において、中央位置を跨いで配置されている、ことが望ましい。 It is desirable that the odor-inducing portion of the absorbent article is arranged so as to straddle the central position in the longitudinal direction in which the absorbent article is expanded and extended.
　このような吸収性物品によれば、長手方向において、当接部の外側（肛門）にて排出された便の臭気を、臭気誘導部に沿って当接部の内側へ移動させやすくすることができる。
これにより、当接部に設置された***臭気検知装置によって便の臭気が検出され易くなり、***物の検知精度を向上させることができる。 According to such an absorbent article, it is possible to easily move the odor of the stool discharged from the outside (anus) of the abutting portion to the inside of the abutting portion along the odor guiding portion in the longitudinal direction. can.
As a result, the odor of stool can be easily detected by the excrement odor detecting device installed at the contact portion, and the accuracy of detecting excrement can be improved.
　かかる吸収性物品であって、前記臭気誘導部において、前記吸収体よりも肌側に、人工便を平面方向に拡散させる拡散シートが設けられている、ことが望ましい。 It is desirable that the odor-inducing portion is provided with a diffusion sheet for diffusing artificial stool in a plane direction on the skin side of the absorber.
　このような吸収性物品によれば、臭気誘導部において、拡散シートを介して長手方向の後側から前側へ便汁を移動させ易くすることができる。これにより、便の臭気が***臭気検知装置に誘導され易くなり、***物の検知精度をより高めることができる。 According to such an absorbent article, it is possible to easily move the stool juice from the posterior side to the anterior side in the longitudinal direction via the diffusion sheet in the odor induction portion. As a result, the odor of stool is easily guided to the excrement odor detecting device, and the accuracy of detecting excrement can be further improved.
　かかる吸収性物品であって、前記臭気誘導部において、前記吸収体には、前記吸収体の密度が周囲の密度よりも大きく、且つ、前記吸収性物品を展開且つ伸長させた状態の長手方向に連続した圧搾部が設けられている、ことが望ましい。 In the odor-inducing portion of the absorbent article, the absorbent body has a density higher than that of the surroundings, and the absorbent article is expanded and stretched in the longitudinal direction. It is desirable that a continuous squeeze section is provided.
　このような吸収性物品によれば、臭気誘導部において、長手方向に沿った圧搾部に誘導されることにより、便汁が吸収体の長手方向に移動し易くなる。これにより、便の臭気が***臭気検知装置に誘導され易くなり、***物の検知精度をより高めることができる。 According to such an absorbent article, the stool juice is easily moved in the longitudinal direction of the absorber by being guided to the squeezed portion along the longitudinal direction in the odor inducing portion. As a result, the odor of stool is easily guided to the excrement odor detecting device, and the accuracy of detecting excrement can be further improved.
　かかる吸収性物品であって、前記臭気誘導部において、前記吸収体には、前記吸収性物品を展開且つ伸長させた状態における長手方向に沿ったスリット部が設けられている、ことが望ましい。 It is desirable that the absorbent body is provided with a slit portion along the longitudinal direction in a state where the absorbent article is expanded and extended in the odor inducing portion.
　このような吸収性物品によれば、臭気誘導部において、長手方向に沿ったスリットを通過することにより、便汁が長手方向に移動し易くなる。これにより、便の臭気が***臭気検知装置に誘導され易くなり、検知精度をより高めることができる。 According to such an absorbent article, the stool juice easily moves in the longitudinal direction by passing through the slit along the longitudinal direction in the odor inducing portion. As a result, the odor of stool is easily guided to the excretory odor detecting device, and the detection accuracy can be further improved.
　かかる吸収性物品であって、前記スリット部は、前記長手方向において、前記当接部の後側端を跨いで配置されている、ことが望ましい。 It is desirable that the slit portion of the absorbent article is arranged so as to straddle the rear end of the contact portion in the longitudinal direction.
　このような吸収性物品によれば、長手方向において、当接部よりも外側（肛門）にて排出された便の臭気を、スリット部に沿って当接部の内側へ移動させやすくすることができる。これにより、当接部に設置された***臭気検知装置によって便の臭気が検出され易くなり、***物の検知精度を向上させることができる。 According to such an absorbent article, it is possible to easily move the odor of the stool discharged outside the contact portion (anus) to the inside of the contact portion along the slit portion in the longitudinal direction. can. As a result, the odor of stool can be easily detected by the excrement odor detecting device installed at the contact portion, and the accuracy of detecting excrement can be improved.
　かかる吸収性物品であって、前記当接部において、前記***臭気検知装置の取り付け位置を案内する案内表示を有する、ことが望ましい。 It is desirable that the absorbent article has a guide display at the contact portion, which guides the mounting position of the excretory odor detecting device.
　このような吸収性物品によれば、使用者は、案内表示にしたがって、当接部のうち最適な位置に***臭気検知装置を取り付けることができる。これにより、***臭気検知装置による***物の検知精度を高めることができる。 According to such an absorbent article, the user can attach the excretion odor detecting device to the optimum position of the contact portion according to the guidance display. As a result, the accuracy of detecting excrement by the excrement odor detecting device can be improved.
＝＝＝第１実施形態＝＝＝
　第１実施形態に係る吸収性物品として、テープ型使い捨ておむつを例に挙げて説明する。なお、テープ型使い捨ておむつは大人用のおむつであっても良いし、乳幼児用のおむつであっても良い。また、第１実施形態ではテープ型使い捨ておむつについて説明するが、おむつの種類はテープ型に限られるものではなく、例えば、パッドタイプの使い捨ておむつやその他のおむつにも本発明を適用することができる。 === First Embodiment ===
As the absorbent article according to the first embodiment, a tape-type disposable diaper will be described as an example. The tape-type disposable diaper may be an adult diaper or an infant diaper. Further, although the tape type disposable diaper will be described in the first embodiment, the type of the diaper is not limited to the tape type, and the present invention can be applied to, for example, a pad type disposable diaper and other diapers. ..
　＜テープ型使い捨ておむつ１の基本構成＞
　図１は、テープ型使い捨ておむつ１（以下「おむつ１」ともいう）が展開かつ伸長された状態における平面図である。図２は、図１に示す線Ａ－Ａでの断面図である。おむつ１を伸長させた状態とは、おむつ１の展開状態において、おむつ１に生じていた皺が実質的に視認されなくなる程に伸長させた状態であり、おむつ１を構成する各部材（例えば後述するトップシート２２等）の寸法がその部材単体の寸法と一致又はそれに近い長さになるまでおむつ１が伸長した状態である。 <Basic configuration of tape-type disposable diaper 1>
FIG. 1 is a plan view of a tape-type disposable diaper 1 (hereinafter, also referred to as “diaper 1”) in a deployed and extended state. FIG. 2 is a cross-sectional view taken along the line AA shown in FIG. The extended state of the diaper 1 is a state in which the wrinkles generated in the diaper 1 are substantially invisible in the unfolded state of the diaper 1, and each member constituting the diaper 1 (for example, described later). The diaper 1 is in a stretched state until the size of the top sheet (22, etc.) is equal to or close to the size of the single member.
　本実施形態のおむつ１は、所謂オープンタイプの使い捨ておむつであり、図１に示すように、前部３と、股下部５と、後部７とを有する。前部３は、着用者の前部（腹側、前胴回り）に位置することになる部分である。また、後部７は、着用者の後部（背側、後胴回り）に位置することになる部分である。股下部５は、前部３と後部７との間に位置することになる部分である。 The diaper 1 of the present embodiment is a so-called open type disposable diaper, and has a front portion 3, an inseam portion 5, and a rear portion 7 as shown in FIG. The front portion 3 is a portion that will be located in the front portion (ventral side, front waist circumference) of the wearer. Further, the rear portion 7 is a portion to be located at the rear portion (dorsal side, rear waist circumference) of the wearer. The inseam 5 is a portion that will be located between the front portion 3 and the rear portion 7.
　以下の説明では、図１に示すように、各方向を定義する。すなわち、伸長状態のおむつ１において、前部３から後部７に向かう方向を「長手方向」とし、長手方向と直交する方向を「幅方向」とする。図１に示されている線Ｂ－Ｂは、長手方向における中央位置ＣＬを示す線である。また、図２に示すように、長手方向及び幅方向と直交する方向を「厚さ方向」とし、着用者の肌の側を「肌側」とし、その逆側を「非肌側」とする。 In the following explanation, each direction is defined as shown in FIG. That is, in the extended diaper 1, the direction from the front portion 3 to the rear portion 7 is defined as the “longitudinal direction”, and the direction orthogonal to the longitudinal direction is defined as the “width direction”. The line BB shown in FIG. 1 is a line indicating the center position CL in the longitudinal direction. Further, as shown in FIG. 2, the direction orthogonal to the longitudinal direction and the width direction is defined as the "thickness direction", the wearer's skin side is defined as the "skin side", and the opposite side is defined as the "non-skin side". ..
　おむつ１は、中央帯状領域１２と、サイドフラップ１４と、レッグギャザー１６と、レッグサイドギャザー１７とを有する。一対のサイドフラップ１４は、後部７において、ファスニングテープ３０がそれぞれ取り付けられている。 The diaper 1 has a central band-shaped region 12, a side flap 14, a leg gather 16, and a leg side gather 17. Fastening tape 30 is attached to each of the pair of side flaps 14 at the rear portion 7.
　中央帯状領域１２は、前部３、股下部５及び後部７によって構成された幅方向の中央部に位置する帯状の領域である（図１参照）。中央帯状領域１２は、着用者によって***された尿等の液体を吸収し保持する部位である。中央帯状領域１２は、主に、吸収体２１と、同吸収体２１を肌側から覆う液透過性のトップシート２２（液透過性シート）と、同吸収体２１を非肌側から覆う液不透過性且つ通気性のバックシート２３（液不透過性シート）、及び、おむつ１の最も非肌側に設けられる外装シート２７とを有する（図２参照）。
トップシート２２としては、例えば、親水性のエアスルー不織布やスパンボンド不織布等を用いることができる。バックシート２３はとしては、例えば、通気性を有する樹脂フィルムを用いることができる。外装シート２７としては、例えば、スパンボンド不織布等を用いることができる。 The central band-shaped region 12 is a band-shaped region located in the central portion in the width direction composed of the front portion 3, the inseam portion 5, and the rear portion 7 (see FIG. 1). The central band-shaped region 12 is a portion that absorbs and retains a liquid such as urine excreted by the wearer. The central band-shaped region 12 mainly includes an absorber 21, a liquid-permeable top sheet 22 (liquid permeable sheet) that covers the absorber 21 from the skin side, and a liquid impermeable material that covers the absorber 21 from the non-skin side. It has a permeable and breathable back sheet 23 (liquid impermeable sheet) and an exterior sheet 27 provided on the most non-skin side of the diaper 1 (see FIG. 2).
As the top sheet 22, for example, a hydrophilic air-through non-woven fabric, a spunbonded non-woven fabric, or the like can be used. As the back sheet 23, for example, a breathable resin film can be used. As the exterior sheet 27, for example, a spunbonded non-woven fabric or the like can be used.
　また、中央帯状領域１２には、トップシート２２と吸収体２１との厚さ方向の間に、液透過性のセカンドシート３５が設けられている。セカンドシート３５としては、トップシート２２と同様の不織布等を用いることができる。但し、セカンドシート３５は、トップシート２２よりも密度の高い不織布であることが望ましい。この理由については後で説明する。なお、おむつ１において、セカンドシート３５は必ずしも設けられている必要は無い。 Further, in the central band-shaped region 12, a liquid-permeable second sheet 35 is provided between the top sheet 22 and the absorber 21 in the thickness direction. As the second sheet 35, the same non-woven fabric or the like as the top sheet 22 can be used. However, it is desirable that the second sheet 35 is a non-woven fabric having a higher density than the top sheet 22. The reason for this will be explained later. The second sheet 35 does not necessarily have to be provided in the diaper 1.
　おむつ１を着用する際には、長手方向における中央位置ＣＬにておむつ１が二つ折りにされ、後部７が着用者の背側にあてがわれ、前部３が着用者の腹側にあてがわれる。そして、後述する図４に示されるように、後部７の幅方向両側に設けられた一対のファスニングテープ３０，３０が着用者に胴回りに沿って前側（腹側）に回しこまれ、該ファスニングテープ３０を前部３に係止する。このような着用状態において、おむつ１は互いに交差する上下方向と左右方向とを有する。上下方向は図１における長手方向に沿った方向であり、左右方向は図１における幅方向に沿った方向である。また、おむつ１の着用状態において、着用者の前側（腹側）に位置する部分を前部１Ｆとも呼び、着用者の後ろ側（背側）に位置する部分を後部１Ｂとも呼ぶ。すなわち、前部１Ｆは、図１の長手方向において中央位置ＣＬよりも前側に位置する部分であり、後部１Ｂは、図１の長手方向において中央位置ＣＬよりも後側に位置する部分である。 When wearing the diaper 1, the diaper 1 is folded in half at the center position CL in the longitudinal direction, the rear part 7 is applied to the back side of the wearer, and the front part 3 is applied to the ventral side of the wearer. Be diapered. Then, as shown in FIG. 4, which will be described later, a pair of fastening tapes 30 and 30 provided on both sides in the width direction of the rear portion 7 are wound around the waistline by the wearer to the front side (ventral side), and the fastening tapes are wound. 30 is locked to the front portion 3. In such a wearing state, the diaper 1 has a vertical direction and a horizontal direction that intersect each other. The vertical direction is the direction along the longitudinal direction in FIG. 1, and the left-right direction is the direction along the width direction in FIG. Further, in the wearing state of the diaper 1, the portion located on the front side (ventral side) of the wearer is also referred to as the front portion 1F, and the portion located on the rear side (dorsal side) of the wearer is also referred to as the rear portion 1B. That is, the front portion 1F is a portion located on the front side of the central position CL in the longitudinal direction of FIG. 1, and the rear portion 1B is a portion located on the rear side of the central position CL in the longitudinal direction of FIG.
　本実施形態の吸収体２１は、図２に示すように、尿等の***物を吸収する吸収性コア２４と、吸収性コア２４を厚さ方向の肌側及び非肌側の両側からそれぞれ覆う液透過性のコアラップシート２５とを有している。 As shown in FIG. 2, the absorber 21 of the present embodiment covers the absorbent core 24 that absorbs excrement such as urine and the absorbent core 24 from both the skin side and the non-skin side in the thickness direction, respectively. It has a liquid-permeable core wrap sheet 25.
　吸収体２１（吸収性コア２４）は、前部３、股下部５及び後部７に亘って配置されている。本実施形態の吸収性コア２４は、所定形状の一例としての平面視略砂時計形状を有する。吸収性コア２４を構成する液体吸収性素材としては、例えばパルプ繊維等の液体吸収性繊維や、高吸収性ポリマー（所謂ＳＡＰ）等の液体吸収性粒状物を使用することができる。また、液体吸収性繊維及び液体吸収性粒状物以外の液体吸収性素材を含んでいても良い。コアラップシート２５を構成する部材としては、例えばティッシュペーパーを使用することができる。また、吸収体２１は、幅方向の中央部において厚さ方向の肌側から非肌側に凹んだ凹部２１Ａを有している（図１及び図２参照）。凹部２１Ａについては、後で説明する。 The absorber 21 (absorbent core 24) is arranged over the front portion 3, the inseam portion 5, and the rear portion 7. The absorbent core 24 of the present embodiment has a substantially hourglass shape in a plan view as an example of a predetermined shape. As the liquid absorbent material constituting the absorbent core 24, for example, a liquid absorbent fiber such as pulp fiber or a liquid absorbent granular material such as a highly absorbent polymer (so-called SAP) can be used. Further, it may contain a liquid-absorbing material other than the liquid-absorbing fiber and the liquid-absorbing granules. As the member constituting the core wrap sheet 25, for example, tissue paper can be used. Further, the absorber 21 has a recess 21A recessed from the skin side to the non-skin side in the thickness direction in the central portion in the width direction (see FIGS. 1 and 2). The recess 21A will be described later.
　サイドフラップ１４は、中央帯状領域１２の幅方向の両側部に位置する部位である。サイドフラップ１４は、主に、肌側シート２６とバックシート２３から構成され、前部３、股下部５及び後部７に亘って形成されている（図１及び図２参照）。肌側シート２６は、前部３、股下部５及び後部７に亘って形成された肌側の部材であり、例えば不織布で構成されている。また、肌側シート２６は、レッグサイドギャザー１７（立体ギャザー）を構成する部材でもある。 The side flaps 14 are portions located on both sides of the central band-shaped region 12 in the width direction. The side flap 14 is mainly composed of the skin side sheet 26 and the back sheet 23, and is formed over the front portion 3, the inseam portion 5, and the rear portion 7 (see FIGS. 1 and 2). The skin-side sheet 26 is a skin-side member formed over the front portion 3, the inseam portion 5, and the rear portion 7, and is made of, for example, a non-woven fabric. The skin side sheet 26 is also a member constituting the leg side gather 17 (three-dimensional gather).
　中央帯状領域１２のうち少なくとも股下部５には、トップシート２２と肌側シート２６との間に、長手方向に伸縮可能な一対の脚周り弾性部材２８（例えば糸ゴム）が設けられている。脚周り弾性部材２８は、股下部５の中央帯状領域１２に伸縮性を付与する部材である。本実施形態では、長手方向に伸長させた状態で脚周り弾性部材２８が取り付けられる。これにより、脚周り弾性部材２８は中央帯状領域１２の股下部５に対して長手方向に沿った収縮力を発現する。 A pair of elastic members around the legs (for example, rubber threads) that can be expanded and contracted in the longitudinal direction are provided between the top sheet 22 and the skin side sheet 26 at least in the inseam 5 of the central band-shaped region 12. The leg circumference elastic member 28 is a member that imparts elasticity to the central band-shaped region 12 of the inseam 5. In the present embodiment, the elastic member 28 around the leg is attached in a state of being extended in the longitudinal direction. As a result, the elastic member around the leg 28 exerts a contractile force along the longitudinal direction with respect to the inseam 5 of the central band-shaped region 12.
　一対のサイドフラップ１４には、長手方向に沿って伸縮するレッグギャザー弾性部材１５がそれぞれ設けられている。レッグギャザー弾性部材１５は、長手方向に沿って伸縮する弾性部材であり、おむつ１の着用時において、脚回り開口部に伸縮性を付与する部材である。すなわち、レッグギャザー弾性部材１５はおむつ１の脚繰り部を着用者の脚に合わせてフィットさせる脚回り弾性部材である。また、レッグギャザー弾性部材１５が股下部５の肌側シート２６及びバックシート２３に伸縮性を付与することによって、レッグギャザー１６が構成される。 The pair of side flaps 14 are each provided with leg gather elastic members 15 that expand and contract along the longitudinal direction. The leg gather elastic member 15 is an elastic member that expands and contracts along the longitudinal direction, and is a member that imparts elasticity to the leg circumference opening when the diaper 1 is worn. That is, the leg gather elastic member 15 is a leg circumference elastic member that fits the leg extension portion of the diaper 1 according to the wearer's leg. Further, the leg gather elastic member 15 imparts elasticity to the skin side sheet 26 and the back sheet 23 of the inseam 5, thereby forming the leg gather 16.
　レッグサイドギャザー１７は、脚繰りの隙間からの液漏れを防ぐための立体ギャザーである。一対のレッグサイドギャザー１７は、前部３、股下部５及び後部７に亘って長手方向に沿って形成されている（図１参照）。レッグサイドギャザー１７は、サイドフラップ１４の内側で中央帯状領域１２の両縁を覆うように形成されている。 The leg side gathers 17 are three-dimensional gathers for preventing liquid leakage from the gaps between the legs. The pair of leg side gathers 17 are formed along the longitudinal direction over the front portion 3, the inseam portion 5, and the rear portion 7 (see FIG. 1). The leg side gathers 17 are formed inside the side flaps 14 so as to cover both edges of the central band-shaped region 12.
　レッグサイドギャザー１７（立体ギャザー）は、主に肌側シート２６の幅方向内側の部位から構成されている（図２参照）。股下部５の肌側シート２６の内縁は糸ゴム等のレッグサイドギャザー弾性部材１８によって伸縮性を有している。肌側シート２６は、中央帯状領域１２とサイドフラップ１４との間の接合部２６Ａで長手方向に沿って接合されている。おむつ１の着用時には、レッグサイドギャザー弾性部材１８の伸縮性によって肌側シート２６の接合部２６Ａよりも内側の領域が、接合部２６Ａを基点として着用者の肌側に立ち上がり、***物等の横漏れを抑制する。 The leg side gather 17 (three-dimensional gather) is mainly composed of the inner part in the width direction of the skin side sheet 26 (see FIG. 2). The inner edge of the skin side sheet 26 of the inseam 5 has elasticity due to the leg side gather elastic member 18 such as thread rubber. The skin side sheet 26 is joined along the longitudinal direction at the joint portion 26A between the central band-shaped region 12 and the side flap 14. When the diaper 1 is worn, the elasticity of the leg side gather elastic member 18 causes the area inside the joint portion 26A of the skin side sheet 26 to rise to the wearer's skin side with the joint portion 26A as a base point, and beside excrement and the like. Suppress leaks.
　ファスニングテープ３０は、おむつ１の後部７においてサイドフラップ１４の幅方向の両側部に配置されている（図１参照）。そして、後述するターゲットテープ２９に各ファスニングテープ３０を係止することにより、おむつ１の胴回り開口及び脚回り開口が形成され、着用者の身体（胴）に対しておむつ１の位置を固定することができる（図４参照）。ファスニングテープ３０としては、例えば面ファスナーを利用することができる。 Fastening tapes 30 are arranged on both sides of the side flaps 14 in the width direction in the rear portion 7 of the diaper 1 (see FIG. 1). Then, by locking each fastening tape 30 to the target tape 29 described later, the waist opening and the leg opening of the diaper 1 are formed, and the position of the diaper 1 is fixed to the wearer's body (torso). (See Fig. 4). As the fastening tape 30, for example, a hook-and-loop fastener can be used.
　中央帯状領域１２の前部３には、ターゲットテープ２９が設けられている（図１参照）。ターゲットテープ２９は、前部３の外装シート２７の非肌側に配置されている。ターゲットテープ２９は、ファスニングテープ３０と係合可能な部材であり、例えば不織布によって形成されている。ターゲットテープ２９は、ファスニングテープ３０を係合させるターゲット領域を構成する。なお、外装シート２７の非肌側にターゲットテープ２９を配置する代わりに、外装シート２７を構成している最外層の不織布にターゲット領域を直接形成しても良い。そして、ファスニングテープ３０をターゲットテープ２９に係合させることによって、おむつ１を着用させることになる。 A target tape 29 is provided on the front portion 3 of the central band-shaped region 12 (see FIG. 1). The target tape 29 is arranged on the non-skin side of the exterior sheet 27 of the front portion 3. The target tape 29 is a member that can be engaged with the fastening tape 30, and is formed of, for example, a non-woven fabric. The target tape 29 constitutes a target area to which the fastening tape 30 is engaged. Instead of arranging the target tape 29 on the non-skin side of the exterior sheet 27, the target region may be directly formed on the non-woven fabric of the outermost layer constituting the exterior sheet 27. Then, by engaging the fastening tape 30 with the target tape 29, the diaper 1 is worn.
　＜臭気センサー６０の基本構成＞
　続いて、おむつ１に***された***物（尿や便）によって発生する臭気を検知するための臭気センサー６０について説明する。図３は、臭気センサー６０の構成について説明する図である。図３Ａは、臭気センサー６０を側面から見たときの断面構造について表す断面模式図であり、図３Ｂは、臭気センサー６０を裏面側（底面部６１ｂの側）から見た状態を表す図である。 <Basic configuration of odor sensor 60>
Subsequently, the odor sensor 60 for detecting the odor generated by the excrement (urine and feces) excreted in the diaper 1 will be described. FIG. 3 is a diagram illustrating the configuration of the odor sensor 60. FIG. 3A is a schematic cross-sectional view showing a cross-sectional structure when the odor sensor 60 is viewed from the side surface, and FIG. 3B is a diagram showing a state where the odor sensor 60 is viewed from the back surface side (the side of the bottom surface portion 61b). ..
　臭気センサー６０は、おむつ１の外側面（外装シート２７の非肌側面）に取り付けて使用する***臭気検知装置であり、***物の臭気を検知することにより、おむつ１に便等が***されたことを検知する。本実施形態の臭気センサー６０は、筐体６１と、検知部６２と、制御部６３と、記憶部６４と、通信部６５と、臭気導入部６６と、取り付け部６７とを有している。また、臭気センサー６０に、バッテリー等の電源供給部（不図示）が設けられていても良い。 The odor sensor 60 is an excretion odor detection device used by being attached to the outer surface of the diaper 1 (non-skin side surface of the exterior sheet 27), and by detecting the odor of excrement, feces and the like are excreted in the diaper 1. Detect that. The odor sensor 60 of the present embodiment includes a housing 61, a detection unit 62, a control unit 63, a storage unit 64, a communication unit 65, an odor introduction unit 66, and a mounting unit 67. Further, the odor sensor 60 may be provided with a power supply unit (not shown) such as a battery.
　筐体６１は、臭気センサー６０の外装を構成する部材であり、内部の空間に検知部６２や制御部６３等の各部を保持する。筐体６１は、図３Ａに示されるような略半球状のカバー部６１ａと、平面状の底面部６１ｂを有している。なお、筐体６１の形状は同図３Ａのような半球状に限られるものではない。カバー部６１ａ及び底面部６１ｂは、何れも樹脂等の絶縁部材により構成されており、底面部６１ｂには、臭気誘導部６６、及び、取り付け部６７が設けられている。臭気センサー６０をおむつ１に取り付ける際には、この底面部６１ｂが、おむつ１に対する当接面となる。 The housing 61 is a member constituting the exterior of the odor sensor 60, and holds each part such as the detection unit 62 and the control unit 63 in the internal space. The housing 61 has a substantially hemispherical cover portion 61a as shown in FIG. 3A and a flat bottom surface portion 61b. The shape of the housing 61 is not limited to the hemisphere as shown in FIG. 3A. Both the cover portion 61a and the bottom surface portion 61b are made of an insulating member such as resin, and the bottom surface portion 61b is provided with an odor guiding portion 66 and a mounting portion 67. When the odor sensor 60 is attached to the diaper 1, the bottom surface portion 61b serves as a contact surface with the diaper 1.
　検知部６２は、便等の***物から発生するガス（臭気）を検知して***検知信号を出力するセンサーであり、感ガス素子を備えた小型（例えば数ｍｍ程度のサイズ）ガスセンサー等を利用することができる。本実施形態では、例えば、酸化物半導体式のガスセンサーTGS2602(フィガロ技研)を用いることができる。 The detection unit 62 is a sensor that detects gas (odor) generated from excrement such as feces and outputs an excretion detection signal, and is a small gas sensor (for example, a size of about several mm) equipped with a gas sensitive element. It can be used. In this embodiment, for example, an oxide semiconductor type gas sensor TGS2602 (Figaro Giken) can be used.
　制御部６３は、臭気センサー６０の各部間でデータの受け渡しを行うととともに、臭気センサー６０全体の制御を行うものであり、当該制御は、所定のメモリに格納されたプログラムをＣＰＵ（Central Processing Unit）が実行することによって実現される。また、制御部６３には、データを記憶するための記憶部６４や、外部の情報処理装置との間で無線通信によってデータを送受信するための通信部６５が接続されている。本実施形態において、制御部６３は、例えば、検知部６２からの***検知信号を受信し、***検知プログラムに基づいて***の有無を判定する。***があった場合には、***があったことを知らせる***情報を生成し、当該***情報を記憶部６４に記憶すると共に通信部６５を介して外部の情報処理装置に送信する等の処理を行う。 The control unit 63 transfers data between each unit of the odor sensor 60 and controls the entire odor sensor 60, and the control controls a program stored in a predetermined memory by a CPU (Central Processing Unit). ) Is executed. Further, the control unit 63 is connected to a storage unit 64 for storing data and a communication unit 65 for transmitting and receiving data by wireless communication with an external information processing device. In the present embodiment, the control unit 63 receives, for example, an excretion detection signal from the detection unit 62, and determines the presence or absence of excretion based on the excretion detection program. When there is excretion, processing such as generating excretion information notifying that there is excretion, storing the excretion information in the storage unit 64, and transmitting the excretion information to an external information processing device via the communication unit 65 is performed. conduct.
　外部の情報処理装置としては、例えばスマートフォンを使用できる。この場合、スマートフォンに***情報が送信され、送信された***情報が、位置情報とともにサーバに送信され、おむつの交換場所等を使用者に提案するようにしても良い。一方、臭気センサー６０がＧＰＳ等の位置情報を合わせて***情報をサーバに送信する構成としても良い。この場合、サーバからおむつ１の交換タイミングや交換場所のプッシュ通知が提供可能となる。また、情報処理装置に出力される情報は、***情報ではなく、例えば、臭気センサー６０によって取得された***に関する生データであっても良い。この場合、***の有無の判断は、スマートフォン等によって実行される。 As an external information processing device, for example, a smartphone can be used. In this case, the excretion information may be transmitted to the smartphone, and the transmitted excretion information may be transmitted to the server together with the location information to propose the diaper changing place or the like to the user. On the other hand, the odor sensor 60 may be configured to match the position information such as GPS and transmit the excretion information to the server. In this case, the server can provide push notifications of the diaper 1 replacement timing and replacement location. Further, the information output to the information processing apparatus may not be excretion information, but may be, for example, raw data regarding excretion acquired by the odor sensor 60. In this case, the presence or absence of excretion is determined by a smartphone or the like.
　制御部６３により実行される***検知プログラムは従来公知の***プログラムを利用すればよい。例えば、***判定閾値を設け、検知部６２から受信した***検知信号が所定の第一閾値範囲に在る場合に排尿があるとして判定し排尿を示す排尿情報を生成し、検知信号が所定の第二閾値範囲に在る場合に排便があるとして判定し排便を示す排便情報を生成する。さらに、検知信号が所定の第三閾値範囲に在る場合に、放屁があるとして判定し放屁を示す***又は放屁情報を生成しても良い。また、検知部６２から受信した***検知信号の信号強度の変化に応じて***の有無を判定してもよい。 The excretion detection program executed by the control unit 63 may use a conventionally known excretion program. For example, an excretion determination threshold is set, and when the excretion detection signal received from the detection unit 62 is within a predetermined first threshold range, it is determined that there is urination, and urination information indicating urination is generated, and the detection signal is a predetermined first. (Ii) If it is within the threshold range, it is determined that there is defecation, and defecation information indicating defecation is generated. Further, when the detection signal is within a predetermined third threshold range, it may be determined that there is flatulence and the excretion or flatulence information indicating the flatulence may be generated. Further, the presence or absence of excretion may be determined according to the change in the signal strength of the excretion detection signal received from the detection unit 62.
　臭気導入部６６は、***物が発生するガス（臭気）を、筐体６１の内部に取り入れて検知部６２に供給するための部位である。臭気導入部６６は、図３Ａのように、底面部６１ｂの一部がその厚さ方向に切り欠かれた部位であり、該底面部６１ｂを厚さ方向に貫通する貫通孔６６ｐを有している。本実施形態では、臭気導入部６６が筐体６１の側面側に連通するように形成されており、臭気センサー６０の底部及び側部から、***物が発生するガス（臭気）を貫通孔６６ｐに導入しやすくなっている。貫通孔６６ｐは、検知部６２に対して厚さ方向に対向する位置に複数設けられており、臭気導入部６６から導入されて貫通孔６６ｐを通過したガスが、検知部６２へ到達しやすい構成となっている。なお、臭気導入部６６の形状や配置はこの限りでは無く、例えば、底面部６１ｂの中央領域に臭気導入部６６が設けられていたり、複数の臭気導入部６６が設けられていたりしても良い。 The odor introduction unit 66 is a portion for taking in the gas (odor) generated by excrement into the inside of the housing 61 and supplying it to the detection unit 62. As shown in FIG. 3A, the odor introducing portion 66 is a portion where a part of the bottom surface portion 61b is cut out in the thickness direction, and has a through hole 66p penetrating the bottom surface portion 61b in the thickness direction. There is. In the present embodiment, the odor introduction portion 66 is formed so as to communicate with the side surface side of the housing 61, and the gas (odor) generated by excrement is introduced into the through hole 66p from the bottom and side portions of the odor sensor 60. It is easy to introduce. A plurality of through holes 66p are provided at positions facing the detection unit 62 in the thickness direction, and the gas introduced from the odor introduction unit 66 and passing through the through holes 66p can easily reach the detection unit 62. It has become. The shape and arrangement of the odor introducing portion 66 is not limited to this, and for example, the odor introducing portion 66 may be provided in the central region of the bottom surface portion 61b, or a plurality of odor introducing portions 66 may be provided. ..
　取り付け部６７は、おむつ１の外側面（外装シート２７の非肌側面）の所定の領域（後述する当接部ＳＡ）に底面部６１ｂを当接させて臭気センサー６０の位置を固定するための部位である。臭気センサー６０は、繰り返し使用されるため、おむつ１に対して着脱自在に取り付けられる必要がある。そのため、取り付け部６７は、取り付け後に取り外すことが可能であり、かつ、取り付け位置がずれにくい部材によって構成されることが望ましい。本実施形態では、例えば、ポリプロピレン等で形成され、表面に複数の係止用突起（不図示）を備えた面ファスナーを用いることができる。おむつ１の外装シート２７を構成する不織布の繊維に対して、これら係止用突起を引っ掛けることにより、臭気センサー６０をおむつ１にしっかりと取り付けることが可能となる。なお、取り付け部６７としては、粘着テープ等を使用することも可能であるが、着脱を繰り返しても係合力が弱くなり難く、取り付け位置の調整や取り外し作業が容易である面ファスナーを用いることがより望ましい。 The mounting portion 67 is for fixing the position of the odor sensor 60 by bringing the bottom surface portion 61b into contact with a predetermined region (contact portion SA described later) on the outer surface of the diaper 1 (non-skin side surface of the exterior sheet 27). It is a part. Since the odor sensor 60 is used repeatedly, it needs to be detachably attached to the diaper 1. Therefore, it is desirable that the mounting portion 67 is made of a member that can be removed after mounting and whose mounting position does not easily shift. In the present embodiment, for example, a hook-and-loop fastener made of polypropylene or the like and having a plurality of locking projections (not shown) on the surface can be used. By hooking these locking protrusions on the fibers of the non-woven fabric constituting the exterior sheet 27 of the diaper 1, the odor sensor 60 can be firmly attached to the diaper 1. Although it is possible to use an adhesive tape or the like as the mounting portion 67, it is possible to use a hook-and-loop fastener that does not easily weaken the engaging force even if it is repeatedly attached and detached, and that the mounting position can be easily adjusted and removed. More desirable.
　＜臭気センサー６０による***検知について＞
　図４は、着用者によって着用されているおむつ１に臭気センサー６０を取り付けた状態について表す図である。本実施形態では、乳幼児等の着用者が図４のようにおむつ１を着用した状態で仰向けの姿勢で寝ている場合において、臭気センサー６０を用いて***の有無を精度よく検知することができる。 <About excretion detection by the odor sensor 60>
FIG. 4 is a diagram showing a state in which the odor sensor 60 is attached to the diaper 1 worn by the wearer. In the present embodiment, when a wearer such as an infant is sleeping in a supine position while wearing the diaper 1 as shown in FIG. 4, the odor sensor 60 can be used to accurately detect the presence or absence of excretion. ..
　上述したように、臭気センサー６０は、筐体６１の底面部６１ｂをおむつ１の外側面（外装シート２７）に当接させ、臭気導入部６６から取り込んだ***物の臭気を検知部６２で検知することによって、***を検知する。したがって、おむつ１に臭気センサー６０を取り付ける際には、***物の臭気が該臭気センサー６０に到達しやすい位置に取り付けることが望ましい。例えば、排便を検知する場合には、着用者の肛門になるべく近い位置に臭気センサー６０を取り付けることが望ましい。 As described above, the odor sensor 60 brings the bottom surface portion 61b of the housing 61 into contact with the outer surface (exterior sheet 27) of the diaper 1 and detects the odor of excrement taken in from the odor introduction portion 66 by the detection unit 62. By doing so, excretion is detected. Therefore, when attaching the odor sensor 60 to the diaper 1, it is desirable to attach it at a position where the odor of excrement can easily reach the odor sensor 60. For example, when detecting defecation, it is desirable to attach the odor sensor 60 as close as possible to the wearer's anus.
　しかしながら、着用者は図４のような仰向けの姿勢で寝ている場合が多いため、肛門付近の背側に臭気センサー６０を長時間にわたって取り付けておくことは難しい。そこで、本実施形態では、おむつ１の前部１Ｆ（図１の長手方向における中央位置ＣＬよりも前側の領域）であって、且つ、***物を吸収する吸収体２１（吸収性コア２４）よりも厚さ方向の非肌側の領域に臭気センサー６０を取り付ける（図４参照）。以下、おむつ１に臭気センサー６０を取り付ける際に、底面部６１ｂを当接させる部分を「当接部ＳＡ」とも呼ぶ。 However, since the wearer often sleeps in the supine position as shown in FIG. 4, it is difficult to attach the odor sensor 60 to the dorsal side near the anus for a long time. Therefore, in the present embodiment, from the absorber 21 (absorbable core 24) which is the front portion 1F of the diaper 1 (the region in front of the central position CL in the longitudinal direction of FIG. 1) and absorbs excrement. The odor sensor 60 is attached to the area on the non-skin side in the thickness direction (see FIG. 4). Hereinafter, when the odor sensor 60 is attached to the diaper 1, the portion that abuts the bottom surface portion 61b is also referred to as a “contact portion SA”.
　図５は、おむつ１の当接部ＳＡについて説明する図である。同図５では、図１と同様に伸長させた状態のおむつ１の前部１Ｆについて表している。図５において、当接部ＳＡは、前部１Ｆのうち、吸収体２１と重複している領域である。ここで、排便を検知したい場合には、便が***された場所のなるべく近くに臭気センサー６０を取り付けることが望ましい。したがって、当接部ＳＡは、吸収体２１の上下方向における下側に位置していることが望ましい。具体的には、前部１Ｆにおける吸収体２１の長手方向の長さをＬ２１Ｆとしたときに、Ｌ２１Ｆを２等分した場合の下側の領域（図５において斜線でハッチングされている領域）を当接部ＳＡとすることが望ましい。 FIG. 5 is a diagram illustrating the contact portion SA of the diaper 1. FIG. 5 shows the front portion 1F of the diaper 1 in a stretched state as in FIG. 1. In FIG. 5, the contact portion SA is a region of the front portion 1F that overlaps with the absorber 21. Here, when it is desired to detect defecation, it is desirable to attach the odor sensor 60 as close as possible to the place where the stool is excreted. Therefore, it is desirable that the contact portion SA is located on the lower side of the absorber 21 in the vertical direction. Specifically, when the length of the absorber 21 in the front portion 1F in the longitudinal direction is L21F, the lower region (the region hatched by diagonal lines in FIG. 5) when L21F is divided into two equal parts is defined. It is desirable to use the contact portion SA.
　さらに、着用者の肛門は、通常、おむつ１（吸収体２１）の左右方向（幅方向）中央に位置しているため、当接部ＳＡは、吸収体２１の左右方向における中央部に位置していることが望ましい。具体的には、前部１Ｆにおける吸収体２１の左右方向（幅）の長さ（幅）をＷ２１Ｆとしたときに、Ｗ２１Ｆを３等分した場合の中央の領域（図５において網状にハッチングされている領域）を当接部ＳＡとすることがより望ましい。なお、本実施形態のように吸収体２１が平面視略砂時計形状で幅が一定ではない場合には、吸収体２１の幅の最大値をＷ２１Ｆとする（図５参照）。 Further, since the wearer's anus is usually located at the center of the diaper 1 (absorbent body 21) in the left-right direction (width direction), the contact portion SA is located at the center portion of the absorber 21 in the left-right direction. It is desirable to be. Specifically, when the length (width) of the absorber 21 in the front portion 1F in the left-right direction (width) is W21F, the central region (hatched in a mesh pattern in FIG. 5) when W21F is divided into three equal parts. It is more desirable that the region) is the contact portion SA. When the absorber 21 has a substantially hourglass shape in a plan view and the width is not constant as in the present embodiment, the maximum value of the width of the absorber 21 is set to W21F (see FIG. 5).
　乳幼児等の着用者が仰向けに寝た状態で排便を行った場合、便の臭気を含んだ気体は、おむつ１の後側から前側（背側から腹側）に抜けやすい。したがって、図５のハッチングで表示された領域を当接部ＳＡとして、臭気センサー６０を取り付けることにより、便の臭気が当接部ＳＡを通過し易くなり、***を検知し易くすることができる。また、図４のように着用者がおむつ１を着用した状態において、股下部では、吸収体２１が着用者の身体（肌）と完全には密着しておらず、吸収体２１と着用者の身体との間に空間（隙間）が形成されやすい。したがって、股下部付近に当接部ＳＡを設けることで、当該領域に便の臭気が溜まり易くなり、***をより検知し易くすることができる。 When a wearer such as an infant defecates while lying on his back, the gas containing the odor of the stool easily escapes from the posterior side to the anterior side (dorsal side to ventral side) of the diaper 1. Therefore, by attaching the odor sensor 60 with the area displayed by the hatching in FIG. 5 as the contact portion SA, the odor of stool can easily pass through the contact portion SA, and excretion can be easily detected. Further, as shown in FIG. 4, when the wearer wears the diaper 1, the absorber 21 is not completely in close contact with the wearer's body (skin) at the inseam, and the absorber 21 and the wearer Spaces (gap) are likely to be formed between the body and the body. Therefore, by providing the contact portion SA in the vicinity of the inseam, the odor of stool is likely to accumulate in the region, and excretion can be more easily detected.
　そして、本実施形態のおむつ１では、当接部ＳＡよりも肌側において、便等の臭気を誘導する臭気誘導部４０が設けられている。すなわち、着用者の肛門から***されて吸収体２１の肌側（トップシート２２）に付着した便の臭気を、臭気誘導部４０によって非肌側（外装シート２７）の当接部ＳＡ側に誘導することにより、便の臭気が臭気センサー６０まで到達し易くなるようにしている。 The diaper 1 of the present embodiment is provided with an odor guiding portion 40 that induces an odor of stool or the like on the skin side of the contact portion SA. That is, the odor of stool excreted from the wearer's anus and adhered to the skin side (top sheet 22) of the absorber 21 is guided to the contact portion SA side of the non-skin side (exterior sheet 27) by the odor guiding portion 40. By doing so, the odor of the stool can easily reach the odor sensor 60.
　図１では、臭気誘導部４０が長手方向（上下方向）に沿って延びる帯状（矩形状）の領域として示されている。このような臭気誘導部４０により、肛門（背側）から***された便の臭気を、前側（腹側）へ誘導すると共に、肌側から非肌側に誘導することが可能となる。なお、当接部ＳＡに臭気センサー６０を当接させる際には、図５のように臭気導入部６６が臭気誘導部４０と重複するように臭気センサー６０を取り付けることが望ましい。
このようにすれば、臭気誘導部４０によって誘導された便の臭気を、臭気導入部６６から効率よく取り込むことができるので、より高精度に***物を検知することが可能となる。 In FIG. 1, the odor guiding portion 40 is shown as a band-shaped (rectangular) region extending along the longitudinal direction (vertical direction). Such an odor guiding unit 40 makes it possible to guide the odor of stool excreted from the anus (dorsal side) to the anterior side (ventral side) and to guide it from the skin side to the non-skin side. When the odor sensor 60 is brought into contact with the contact portion SA, it is desirable to attach the odor sensor 60 so that the odor introduction portion 66 overlaps with the odor induction portion 40 as shown in FIG.
By doing so, the odor of the stool induced by the odor inducing unit 40 can be efficiently taken in from the odor introducing unit 66, so that the excrement can be detected with higher accuracy.
　続いて、臭気誘導部４０の具体的な構成について説明する。図６は、臭気誘導部４０の構成の一例について説明する図である。同図６は、おむつ１及び吸収体２１の断面模式図であり、図２の幅方向中央部付近を拡大して概略的に示した図に相当する。 Next, the specific configuration of the odor induction unit 40 will be described. FIG. 6 is a diagram illustrating an example of the configuration of the odor induction unit 40. FIG. 6 is a schematic cross-sectional view of the diaper 1 and the absorber 21, and corresponds to a diagram schematically shown by enlarging the vicinity of the central portion in the width direction of FIG.
　図６では、幅方向における中央部において、吸収体２１（吸収性コア２４）の肌側面の一部が非肌側に凹んだ凹部２１Ａが形成されており、当該凹部２１Ａが設けられている領域が臭気誘導部４０となっている。このような凹部２１Ａは、例えば、吸収性コア２４の所定の領域を肌側から溝状に削り取ることによって形成される。したがって、当接部ＳＡのうち、臭気誘導部４０（凹部２１Ａ）では、周囲の領域と比較して吸収体２１（吸収性コア２４）の坪量が小さく、便の臭気が吸収体２１を厚さ方向に透過し易くなっている。
すなわち、臭気誘導部４０における厚さ方向の通気透過率は、臭気誘導部４０以外の領域における厚さ方向の通気透過率よりも高くなっている。これにより、臭気誘導部４０では、便の臭気を厚さ方向の肌側から非肌側に誘導し易くなっている。 In FIG. 6, a recess 21A in which a part of the skin side surface of the absorber 21 (absorbent core 24) is recessed toward the non-skin side is formed in the central portion in the width direction, and the region where the recess 21A is provided. Is the odor guiding unit 40. Such a recess 21A is formed, for example, by scraping a predetermined region of the absorbent core 24 from the skin side in a groove shape. Therefore, in the odor guiding portion 40 (recessed portion 21A) of the contact portion SA, the basis weight of the absorber 21 (absorbent core 24) is smaller than that in the surrounding region, and the odor of stool thickens the absorber 21. It is easy to penetrate in the vertical direction.
That is, the air permeability in the thickness direction of the odor inducer 40 is higher than the air permeability in the thickness direction in the region other than the odor inducer 40. As a result, the odor guiding unit 40 can easily induce the odor of stool from the skin side to the non-skin side in the thickness direction.
　なお、吸収体２１（吸収性コア２４）の坪量が２００ｇ/ｍ2を超えると、便の臭気が吸収体２１（吸収性コア２４）を厚さ方向に透過し難くなる。そのため、本実施形態の臭気誘導部４０（凹部２１Ａ）における吸収体２１（吸収性コア２４）の坪量は、０～２００ｇ／ｍ2程度であることが好ましく、１００ｇ／ｍ2程度であることがより好ましい。一方、臭気誘導部４０（凹部２１Ａ）以外の領域における吸収体２１（吸収性コア２４）の坪量は、３７０ｇ／ｍ2程度である。 If the basis weight of the absorber 21 (absorbent core 24) exceeds 200 g / m 2 , it becomes difficult for the odor of stool to permeate the absorber 21 (absorbable core 24) in the thickness direction. Therefore, the basis weight of the absorber 21 (absorbent core 24) in the odor guiding portion 40 (recessed portion 21A) of the present embodiment is preferably about 0 to 200 g / m 2 , and preferably about 100 g / m 2 . Is more preferable. On the other hand, the basis weight of the absorber 21 (absorbent core 24) in the region other than the odor guiding portion 40 (recessed portion 21A) is about 370 g / m 2 .
　また、臭気誘導部４０（凹部２１Ａ）の坪量は、必ずしも均一である必要はなく、吸収体２１のうち、凹部２１Ａの少なくとも一部の坪量が、凹部２１Ａ以外の領域の坪量よりも小さくなっていれば、臭気誘導部４０における通気透過率を高めることができる。言い換えると、臭気誘導部４０（凹部２１Ａ）の或る位置における坪量が、その周囲の或る位置における坪量よりも小さければ、便の臭気を厚さ方向の肌側から非肌側に誘導しやすくすることができる。 Further, the basis weight of the odor guiding portion 40 (recessed portion 21A) does not necessarily have to be uniform, and the basis weight of at least a part of the recess 21A of the absorber 21 is larger than the basis weight of the region other than the recess 21A. If it is smaller, the air permeability in the odor inducing unit 40 can be increased. In other words, if the basis weight at a certain position of the odor guiding portion 40 (recess 21A) is smaller than the basis weight at a certain position around it, the odor of stool is guided from the skin side to the non-skin side in the thickness direction. Can be made easier.
　このような臭気誘導部４０を備えることにより、吸収体２１の肌側に***された便の臭気は、吸収体２１を厚さ方向の肌側から非肌側に透過して、外装シート２７の非肌側に取り付けられた臭気センサー６０（臭気導入部６６）に到達し易くなる。したがって、臭気センサー６０による***検知精度を高めることができる。 By providing such an odor guiding portion 40, the odor of stool excreted on the skin side of the absorber 21 permeates the absorber 21 from the skin side to the non-skin side in the thickness direction, and the exterior sheet 27 It becomes easier to reach the odor sensor 60 (odor introduction unit 66) attached to the non-skin side. Therefore, the accuracy of excretion detection by the odor sensor 60 can be improved.
　また、図６に示されるように、凹部２１Ａにおける吸収体２１の厚さｔ２１Ａは、凹部２１Ａ以外の領域における吸収体２１の厚さｔ２１よりも小さくなっている（ｔ２１Ａ＜ｔ２１）。すなわち、臭気誘導部４０では、他の領域と比較して、便の臭気が吸収体２１を厚さ方向に透過する距離が短くなっており、吸収体２１の非肌側に到達し易くなる。つまり、臭気誘導部４０では、便の臭気が臭気センサー６０に到達し易くなり、***の検知精度をより高めることができる。なお、上述した坪量と同様、臭気誘導部４０（凹部２１Ａ）における吸収体２１の厚さｔ２１Ａも均一である必要はなく、臭気誘導部４０（凹部２１Ａ）の或る位置における厚さが、その周囲における或る位置の厚さよりも小さければ、便の臭気を厚さ方向の肌側から非肌側に誘導し、排便の検知精度を高めることができる。 Further, as shown in FIG. 6, the thickness t21A of the absorber 21 in the recess 21A is smaller than the thickness t21 of the absorber 21 in the region other than the recess 21A (t21A <t21). That is, in the odor guiding portion 40, the distance through which the odor of stool permeates the absorber 21 in the thickness direction is shorter than in other regions, and it becomes easier to reach the non-skin side of the absorber 21. That is, in the odor guiding unit 40, the odor of stool can easily reach the odor sensor 60, and the accuracy of detecting excretion can be further improved. As with the basis weight described above, the thickness t21A of the absorber 21 in the odor guiding portion 40 (recessed portion 21A) does not have to be uniform, and the thickness of the odor guiding portion 40 (recessed portion 21A) at a certain position is determined. If it is smaller than the thickness at a certain position in the surroundings, the odor of stool can be guided from the skin side to the non-skin side in the thickness direction, and the detection accuracy of defecation can be improved.
　また、おむつ１において、吸収体２１の非肌側に配置されたバックシート２３（液不透過性シート）には、液体を通過させずに、気体のみを通過させる程度の微小な通気孔（不図示）が複数設けられている。そして、そのような微小な通気孔を広げて直径が大きくなった部分によって臭気誘導部４０が構成されていても良い。すなわち、厚さ方向に見たときに少なくとも臭気誘導部４０と重複する領域において、バックシート２３の通気孔の大きさが広げられていることにより、通気性が高まり、便の臭気を厚さ方向に透過させ易くすることができる。通気孔の大きさを広げる方法としては、例えば、おむつ１の製造工程において、バックシート２３を構成する樹脂シートに対して、平面方向（上下方向若しくは左右方向の少なくとも一方に沿った方向）に延伸処理を施すことによって、当該樹脂シートに設けられた通気孔の大きさを広げることができる。平面方向に延伸されることによって通気孔が広げられたバックシート２３を用いることにより、臭気誘導部４０における厚さ方向の通気透過率が高まり、便の臭気を臭気センサー６０により到達させやすくすることができる。これにより、***の検知精度をより高めることができる。 Further, in the diaper 1, the back sheet 23 (liquid impermeable sheet) arranged on the non-skin side of the absorber 21 has a minute ventilation hole (impermeable) that allows only gas to pass through without allowing liquid to pass through. (Fig.) Are provided. Then, the odor guiding portion 40 may be configured by a portion having such a minute ventilation hole widened and having a large diameter. That is, since the size of the ventilation holes of the back sheet 23 is widened at least in the region overlapping with the odor guiding portion 40 when viewed in the thickness direction, the air permeability is enhanced and the stool odor is increased in the thickness direction. Can be easily transmitted to the scent. As a method of expanding the size of the ventilation holes, for example, in the manufacturing process of the diaper 1, the resin sheet constituting the back sheet 23 is stretched in the plane direction (direction along at least one of the vertical direction and the horizontal direction). By applying the treatment, the size of the ventilation holes provided in the resin sheet can be expanded. By using the back sheet 23 whose ventilation holes are widened by being stretched in the plane direction, the ventilation permeability in the thickness direction in the odor guiding portion 40 is increased, and the odor of stool can be easily reached by the odor sensor 60. Can be done. Thereby, the detection accuracy of excretion can be further improved.
　また、おむつ１の最も非肌側に配置される外装シート２７を厚さ方向に貫通する貫通孔を設け、当該貫通孔が設けられている領域を臭気誘導部４０としても良い。図６では、外装シート２７の表面に複数の貫通孔２７ｈが設けられており、当該領域が臭気誘導部４０となっている。臭気誘導部４０にこのような貫通孔２７ｈが設けられていることにより、厚さ方向の通気透過率が高まり、便の臭気を臭気センサー６０により到達させやすくすることができる。これにより、***の検知精度をより高めることができる。なお、図６の例では、外装シート２７の一部の領域に貫通孔２７ｈが設けられているが、外装シート２７の全域に亘って複数の貫通孔２７ｈが設けられていても良い。例えば、外装シート２７として開孔不織布等を用いても良い。また、図６では、臭気センサー６０の臭気導入部６６よりも小さい貫通孔２７ｈが、外装シート２７の表面に複数設けられているが、臭気導入部６６以上の大きさの貫通孔２７ｈが、外装シート２７の表面に一つだけ設けられているのであっても良い。すなわち、外装シート２７の所定の領域が、臭気センサー６０（臭気導入部６６）の大きさに合わせてくり抜かれているのであっても良い。このような構成であれば、臭気誘導部４０における通気透過率をより高めることができる。 Further, a through hole may be provided to penetrate the exterior sheet 27 arranged on the non-skin side of the diaper 1 in the thickness direction, and the region provided with the through hole may be used as the odor guiding portion 40. In FIG. 6, a plurality of through holes 27h are provided on the surface of the exterior sheet 27, and the region is the odor guiding portion 40. By providing such a through hole 27h in the odor guiding portion 40, the air permeability in the thickness direction is increased, and the odor of stool can be easily reached by the odor sensor 60. Thereby, the detection accuracy of excretion can be further improved. In the example of FIG. 6, through holes 27h are provided in a part of the exterior sheet 27, but a plurality of through holes 27h may be provided over the entire area of the exterior sheet 27. For example, a perforated non-woven fabric or the like may be used as the exterior sheet 27. Further, in FIG. 6, a plurality of through holes 27h smaller than the odor introduction portion 66 of the odor sensor 60 are provided on the surface of the exterior sheet 27, but the through holes 27h having a size larger than that of the odor introduction portion 66 are the exterior. Only one may be provided on the surface of the sheet 27. That is, a predetermined region of the exterior sheet 27 may be hollowed out according to the size of the odor sensor 60 (odor introduction portion 66). With such a configuration, the air permeability in the odor inducing unit 40 can be further increased.
　このように、本実施形態のおむつ１では、臭気センサー６０を取り付ける当接部ＳＡの或る位置における通気透過率が、当接部ＳＡ以外の或る位置における通気透過率よりも高くなるように構成されている。これにより、便の臭気が厚さ方向に流れ易くなり、肌側に***された便等の臭気が、非肌側に取り付けられた臭気センサー６０に到達し易くなる。
したがって、***の検知精度を向上させることができる。 As described above, in the diaper 1 of the present embodiment, the air permeability at a certain position of the contact portion SA to which the odor sensor 60 is attached is set to be higher than the air permeability at a certain position other than the contact portion SA. It is configured. As a result, the odor of stool easily flows in the thickness direction, and the odor of stool or the like excreted on the skin side easily reaches the odor sensor 60 attached to the non-skin side.
Therefore, the accuracy of excretion detection can be improved.
　なお、上述の図６では、おむつ１に設けられる臭気誘導部４０の構成例として、吸収体２１の凹部２１Ａや、バックシート２３の微小な孔や、外装シート２７の貫通孔２７ｈが設けられる例について示されていたが、これらの構成の全てを同時に備えている必要はない。例えば、おむつ１が上述の構成のうち少なくとも一つを備えていれば、便の臭気を誘導して、臭気センサー６０による検知精度を高めることが可能である。 In FIG. 6 described above, as a configuration example of the odor guiding portion 40 provided in the diaper 1, a recess 21A of the absorber 21, a minute hole in the back sheet 23, and a through hole 27h in the exterior sheet 27 are provided. However, it is not necessary to have all of these configurations at the same time. For example, if the diaper 1 has at least one of the above configurations, it is possible to induce the odor of stool and improve the detection accuracy by the odor sensor 60.
　また、「通気透過率」は、例えばフラジール通気度試験機を用いて、ＪＩＳ L 1096-2010に規定される通気性の試験方法（8.26.１Ａ）に準拠して、以下のようにして測定することができる。先ず、試験対象となるシート部材から複数の試験片（例えば５つ）を採取する。そして、試験機の円筒の一端側に所定径のオリフィス（空気孔）を取り付け、他端側に試験片を取り付ける。次いで、加減抵抗器によって傾斜形気圧計が１２５Ｐａとなるように調整し、そのときの垂直形気圧計の示す圧力を測る。そして、測定された圧力と、使用したオリフィスの径との関係から、試験機に付属する換算表によって、試験片を通過する空気量を求める。この動作を５つの試験片についてそれぞれ行い、平均値を求める。
このようにして、試験対象となるシート部材の通気透過率を算出することができる。 The "ventilation permeability" is measured as follows, for example, using a Frazier air permeability tester, in accordance with the air permeability test method (8.26.11A) specified in JIS L 1096-2010. be able to. First, a plurality of test pieces (for example, five) are collected from the sheet member to be tested. Then, an orifice (air hole) having a predetermined diameter is attached to one end side of the cylinder of the testing machine, and a test piece is attached to the other end side. Next, the tilted barometer is adjusted to 125 Pa by an adjusting resistor, and the pressure indicated by the vertical barometer at that time is measured. Then, from the relationship between the measured pressure and the diameter of the orifice used, the amount of air passing through the test piece is obtained from the conversion table attached to the testing machine. This operation is performed for each of the five test pieces, and the average value is calculated.
In this way, the air permeability of the sheet member to be tested can be calculated.
　ところで、***物に含まれる水分は、吸収体２１に吸収されながら、吸収体２１の内部を厚さ方向に移動することから、臭気の発生源である***物自体を吸収体２１の肌側から非肌側へ移動させることによって、臭気を厚さ方向に誘導しやすくすることができる。このようにすることで、臭気センサー６０によって***物の臭気をさらに検知し易くすることができる。本実施形態のおむつ１では、吸収体２１の厚さ方向における便の透過率を高めることにより、***の検知精度を高めている。 By the way, the water contained in the excrement moves in the thickness direction inside the absorber 21 while being absorbed by the absorber 21, so that the excrement itself, which is the source of the odor, is transmitted from the skin side of the absorber 21. By moving it to the non-skin side, it is possible to easily induce the odor in the thickness direction. By doing so, the odor of excrement can be more easily detected by the odor sensor 60. In the diaper 1 of the present embodiment, the accuracy of excretion detection is improved by increasing the transmittance of stool in the thickness direction of the absorber 21.
　例えば、吸収体２１の一部の領域の密度が、他の領域における密度よりも高くなった高密度部を設け、当該高密度部によって臭気誘導部４０が構成されるようにしても良い。具体的には、臭気誘導部４０において、吸収体２１を構成する液体吸収性繊維（パルプ）と高吸収性ポリマー（ＳＡＰ）との合計の密度が１２０ｋｇ／ｍ３以上であることが望ましく、１３０～１６０ｋｇ／ｍ３であることがより望ましい。密度が１２０ｋｇ／ｍ３以上の部分では、吸収体２１中を便汁が透過する間に、毛細管現象によって厚さ方向への移動が促進され、当該便汁から発生する臭気が臭気センサー６０に到達し易くなる。 For example, a high-density portion in which the density of a part of the absorber 21 is higher than the density in the other region may be provided, and the odor-inducing portion 40 may be formed by the high-density portion. Specifically, in the odor inducing unit 40, it is desirable that the total density of the liquid absorbent fiber (pulp) constituting the absorber 21 and the highly absorbent polymer (SAP) is 120 kg / m 3 or more, and 130 It is more desirable that it is ~ 160 kg / m 3 . In the portion where the density is 120 kg / m 3 or more, the movement in the thickness direction is promoted by the capillary phenomenon while the stool juice permeates through the absorber 21, and the odor generated from the stool juice reaches the odor sensor 60. It becomes easier to do.
　一方、臭気誘導部４０の周囲の領域では、吸収体２１を構成する液体吸収性繊維（パルプ）と高吸収性ポリマー（ＳＡＰ）との合計の密度を１００ｋｇ／ｍ３以下とすることが望ましい。吸収体２１の密度を１００ｋｇ／ｍ３以下とすることにより、毛細管現象が生じ難くなり、便汁が厚さ方向に移動し難くなる。これにより、吸収体２１によって便汁が保持されやすくなり、***漏れを抑制し易くすることができる。 On the other hand, in the region around the odor inducing portion 40, it is desirable that the total density of the liquid absorbent fiber (pulp) constituting the absorber 21 and the highly absorbent polymer (SAP) is 100 kg / m 3 or less. By setting the density of the absorber 21 to 100 kg / m 3 or less, the capillary phenomenon is less likely to occur, and the stool juice is less likely to move in the thickness direction. As a result, the stool juice can be easily retained by the absorber 21, and excretion leakage can be easily suppressed.
　また、トップシート２２（液透過性シート）を厚さ方向に貫通する貫通孔を設け、当該貫通孔が設けられている領域を臭気誘導部４０としても良い。図６では、臭気誘導部４０において、トップシート２２の表面に複数の貫通孔２２ｈが設けられている。このような貫通孔２２ｈが設けられていることにより、便の臭気と共に便汁が厚さ方向の非肌側に移動し易くなる。つまり、トップシート２２の厚さ方向における便の透過率が高まり、便の臭気を臭気センサー６０により到達させやすくすることができる。したがって、***の検知精度をより高めることができる。 Further, a through hole that penetrates the top sheet 22 (liquid permeable sheet) in the thickness direction may be provided, and the region where the through hole is provided may be used as the odor guiding portion 40. In FIG. 6, in the odor guiding portion 40, a plurality of through holes 22h are provided on the surface of the top sheet 22. By providing such a through hole 22h, the stool juice easily moves to the non-skin side in the thickness direction together with the odor of the stool. That is, the transmittance of stool in the thickness direction of the top sheet 22 is increased, and the odor of stool can be easily reached by the odor sensor 60. Therefore, the accuracy of excretion detection can be further improved.
　また、上述したセカンドシート３５の密度を、トップシート２２の密度よりも高くすることが望ましい。図６に示されるように、セカンドシート３５は、トップシート２２の厚さ方向の非肌側に重ねて積層されているシート部材である。したがって、トップシート２２の表面に付着した便に含まれる水分（便汁）は、トップシート２２からセカンドシート３５を介して吸収体２１へ厚さ方向に移動する。このとき、セカンドシート３５の密度がトップシート２２の密度よりも高ければ、毛細管現象により、便汁がセカンドシート３５側に引き込まれやすくなる。すなわち、臭気誘導部４０において、便汁が厚さ方向の肌側から非肌側へ移動し易くなる。これにより、厚さ方向における便の透過率がより高まり、便の臭気を臭気センサー６０により到達させやすくすることができる。したがって、***の検知精度をより高めることができる。 Further, it is desirable that the density of the second sheet 35 described above is higher than the density of the top sheet 22. As shown in FIG. 6, the second sheet 35 is a sheet member laminated on the non-skin side of the top sheet 22 in the thickness direction. Therefore, the water (stool juice) contained in the stool adhering to the surface of the top sheet 22 moves from the top sheet 22 to the absorber 21 via the second sheet 35 in the thickness direction. At this time, if the density of the second sheet 35 is higher than the density of the top sheet 22, stool juice is likely to be drawn into the second sheet 35 side due to the capillary phenomenon. That is, in the odor guiding portion 40, the stool juice easily moves from the skin side to the non-skin side in the thickness direction. As a result, the transmittance of the stool in the thickness direction is further increased, and the odor of the stool can be easily reached by the odor sensor 60. Therefore, the accuracy of excretion detection can be further improved.
　このように、本実施形態のおむつ１は、臭気センサー６０を取り付ける当接部ＳＡの或る位置における便の厚さ方向の透過率が、当接部ＳＡ以外の或る位置における便の厚さ方向の透過率よりも高くなるように構成されている。これにより、便に含まれる水分（便汁）が厚さ方向の肌側から非肌側に移動し易くなり、当該便汁から発生する臭気も非肌側に移動し易くなる。したがって、便の臭気が臭気センサー６０に到達し易くなり、***の検知精度を向上させることができる。 As described above, in the diaper 1 of the present embodiment, the transmittance in the thickness direction of the stool at a certain position of the contact portion SA to which the odor sensor 60 is attached is the thickness of the stool at a certain position other than the contact portion SA. It is configured to be higher than the transmittance in the direction. As a result, the water (stool juice) contained in the stool easily moves from the skin side to the non-skin side in the thickness direction, and the odor generated from the stool juice also easily moves to the non-skin side. Therefore, the odor of stool can easily reach the odor sensor 60, and the accuracy of excretion detection can be improved.
　なお、「便の透過率」は、「便」に相当する粘度や流動性を有する「人工便」を用いて以下のようにして測定することができる。先ず、吸収体２１のうち測定対象とする部分（例えば、臭気誘導部４０及び臭気誘導部４０以外の部分）について、肌側に設けられているトップシート２２及びセカンドシート３５と共に切り出して、試験片とする。なお、非肌側に設けられているバックシート２３及び外装シート２７は、吸収体２１から取り外しておく。次に、試験片の非肌側に、予め重量を測定しておいたティッシュペーパー（１５ｇ／ｍ２）を４枚重ねて敷く。すなわち、ティッシュペーパーの上側に、試験片の肌側面（トップシート２２が設けられている面）が上になるように、重ねて配置する。そして、試験片の肌側面（上面）のうち、所定の大きさの領域を人工便滴下領域とし、それ以外の領域にガムテープ等を張り付けてマスキングし、人工便滴下領域以外の領域には人工便が滴下されないようにする。 The "feces permeability" can be measured as follows using "artificial stool" having a viscosity and fluidity equivalent to that of "stool". First, a portion of the absorber 21 to be measured (for example, a portion other than the odor inducing portion 40 and the odor inducing portion 40) is cut out together with the top sheet 22 and the second sheet 35 provided on the skin side, and the test piece. And. The back sheet 23 and the exterior sheet 27 provided on the non-skin side are removed from the absorber 21. Next, four sheets of tissue paper (15 g / m 2 ) whose weight has been measured in advance are laid on the non-skin side of the test piece. That is, they are placed on top of the tissue paper so that the skin side surface (the surface on which the top sheet 22 is provided) of the test piece faces up. Then, of the skin side surface (upper surface) of the test piece, an area of a predetermined size is used as an artificial stool dropping area, and a gum tape or the like is attached to the other area for masking. To prevent dripping.
　続いて、人工便滴下領域に人工便を２ｇ滴下し、滴下した後、試験片の肌側に９００ｇの重りを乗せて３分間放置する。重りは、例えば、直径９０ｍｍの金属製の円柱（円盤）であって、重量が９００ｇであるものを使用できる。そして、３分経過した後、試験片から重りをはずして、ティッシュペーパーの上から試験片を移動させる。この状態で、ティッシュペーパーの重量を測定することにより、試料を透過してティッシュペーパーに染み込んだ人工便の量が、ティッシュペーパーの重量増加分として求められる。そして、滴下した人工便の重量（２ｇ）と、試験片を透過した人工便の重量から、人工便の透過率を算出する。 Subsequently, 2 g of artificial stool is dropped into the artificial stool dripping area, and after the dripping, a 900 g weight is placed on the skin side of the test piece and left for 3 minutes. As the weight, for example, a metal cylinder (disk) having a diameter of 90 mm and a weight of 900 g can be used. Then, after 3 minutes have passed, the weight is removed from the test piece, and the test piece is moved from the top of the tissue paper. By measuring the weight of the tissue paper in this state, the amount of artificial stool that has permeated the sample and soaked into the tissue paper can be obtained as the weight increase of the tissue paper. Then, the transmittance of the artificial stool is calculated from the weight of the dropped artificial stool (2 g) and the weight of the artificial stool that has passed through the test piece.
　測定に用いられる人工便としては、一例として、イオン交換水：７３％、ＮａＣｌ：１％、グリセリン：１３．９％、ＮａＣＭＣ：２％、セルロース１０％、色粉０．１％を含み、粘度を２０００ｍＰａ・Ｓに調整したものを使用できる。粘度についてはイオン交換水で微調整することができる。また、試験片の大きさや試験片に重りを乗せて荷重を加える時間は、おむつ１の使用状況を考慮して変更しても良い。 As an example, the artificial stool used for the measurement contains ion-exchanged water: 73%, NaCl: 1%, glycerin: 13.9%, NaClC: 2%, cellulose 10%, colored powder 0.1%, and has a viscosity. Can be adjusted to 2000 mPa · S. The viscosity can be finely adjusted with ion-exchanged water. Further, the size of the test piece and the time for placing the weight on the test piece and applying the load may be changed in consideration of the usage situation of the diaper 1.
　また、おむつ１では、便の臭気や便に含まれる水分（便汁）を平面方向（図１の長手方向及び幅方向）にも移動させることで、臭気センサー６０に便の臭気を到達させやすくしている。図４等で説明したように、便は、着用者の肛門（おむつ１の後側）から排出されるのに対して、臭気センサー６０を取り付ける当接部ＳＡは、おむつ１の前側に設けられている。そこで、便の臭気をおむつ１の後側から前側に移動させ易くすることにより、臭気センサー６０による***物の検知精度をより高めることができる。 Further, in the diaper 1, the odor of stool and the water (stool juice) contained in the stool are moved in the plane direction (longitudinal direction and width direction in FIG. 1), so that the odor of stool can easily reach the odor sensor 60. is doing. As described with reference to FIG. 4, the stool is discharged from the wearer's anus (rear side of the diaper 1), whereas the contact portion SA for attaching the odor sensor 60 is provided on the front side of the diaper 1. ing. Therefore, by facilitating the movement of the odor of stool from the rear side to the front side of the diaper 1, the accuracy of detecting excrement by the odor sensor 60 can be further improved.
　本実施形態では、図１及び図５のようにおむつ１を展開かつ伸長させた状態において、臭気誘導部４０（凹部２１Ａ等）が長手方向の後側（背側）から前側（腹側）に延びるように配置されている。すなわち、臭気誘導部４０が、長手方向における中央位置ＣＬを前後に跨いで配置されている（図１参照）。これにより、長手方向の後側にて肛門から排出された便の臭気を、臭気誘導部４０に沿って長手方向の前側へ移動させやすくすることができる。このような構成であれば、長手方向の前側において臭気センサー６０によって便の臭気が検出され易くなるため、***物の検知精度を向上させることができる。 In the present embodiment, in the state where the diaper 1 is expanded and extended as shown in FIGS. 1 and 5, the odor guiding portion 40 (recessed portion 21A, etc.) is moved from the posterior side (dorsal side) to the anterior side (ventral side) in the longitudinal direction. It is arranged so as to extend. That is, the odor guiding portion 40 is arranged so as to straddle the central position CL in the longitudinal direction in the front-rear direction (see FIG. 1). As a result, the odor of the stool discharged from the anus on the posterior side in the longitudinal direction can be easily moved to the anterior side in the longitudinal direction along the odor guiding portion 40. With such a configuration, the odor of stool can be easily detected by the odor sensor 60 on the front side in the longitudinal direction, so that the accuracy of detecting excrement can be improved.
　さらに、臭気誘導部４０は、長手方向において、当接部ＳＡの後側端を前後に跨いで配置されていることが望ましい。おむつ１に対して実際に臭気センサー６０が取り付けられる領域は当接部ＳＡであることから、***物の検出精度を高めるためには、肛門にて***された便の臭気を、当該当接部ＳＡまで誘導する必要がある。これに対して、臭気誘導部４０が、当接部の外側（当接部ＳＡの後側端よりも後側）から当接部の内側（当接部ＳＡの後側端よりも前側）まで連続して設けられていれば、肛門にて***された便の臭気が当接部ＳＡまで誘導され易くなり、臭気センサー６０による***検知精度をより高めることができる。 Further, it is desirable that the odor guiding portion 40 is arranged so as to straddle the rear end of the contact portion SA in the longitudinal direction. Since the area where the odor sensor 60 is actually attached to the diaper 1 is the contact portion SA, in order to improve the detection accuracy of excrement, the odor of the stool excreted in the anus is applied to the contact portion. It is necessary to induce to SA. On the other hand, the odor guiding portion 40 extends from the outside of the contact portion (rear side of the rear end of the contact portion SA) to the inside of the contact portion (front side of the rear end of the contact portion SA). If they are continuously provided, the odor of the stool excreted in the anus can be easily guided to the contact portion SA, and the excretion detection accuracy by the odor sensor 60 can be further improved.
　本実施形態のおむつ１では、図５に示されるように、長手方向における当接部ＳＡの後側端とおむつ１の中央位置ＣＬとが同じ位置であるため、臭気誘導部４０は当接部ＳＡの後側端（中央位置ＣＬ）を跨いで配置されていることになる。 In the diaper 1 of the present embodiment, as shown in FIG. 5, since the rear end of the contact portion SA in the longitudinal direction and the center position CL of the diaper 1 are at the same position, the odor guiding portion 40 is the contact portion. It is arranged so as to straddle the rear end (center position CL) of the SA.
　また、上述したように、おむつ１には、トップシート２２と吸収体２１との厚さ方向の間に、トップシート２２よりも密度が高いセカンドシート３５が配置されている。このような密度の高いセカンドシート３５が配置されていることにより、便に含まれる水分（便汁）は厚さ方向の非肌側に引き込まれ易くなると共に、セカンドシート３５を伝って平面方向にも拡散し易くなる。つまり、セカンドシート３５が、平面方向（長手方向及び幅方向）に便汁を拡散させるための拡散シートとして機能し、臭気誘導部４０において、便汁を長手方向の後側から前側へ移動させ易くすることができる。これにより、便の臭気が臭気センサー６０に誘導され易くなり、検知精度をより高めることができる。 Further, as described above, in the diaper 1, a second sheet 35 having a higher density than the top sheet 22 is arranged between the top sheet 22 and the absorber 21 in the thickness direction. By arranging such a dense second sheet 35, the water (stool juice) contained in the stool is easily drawn into the non-skin side in the thickness direction, and at the same time, it is transmitted in the plane direction along the second sheet 35. Is also easy to spread. That is, the second sheet 35 functions as a diffusion sheet for diffusing the stool juice in the plane direction (longitudinal direction and width direction), and the odor guiding portion 40 can easily move the stool juice from the rear side to the front side in the longitudinal direction. can do. As a result, the odor of stool is easily guided to the odor sensor 60, and the detection accuracy can be further improved.
　また、おむつ１に設けられる臭気誘導部４０は、図６に示される以外の構成を有していても良い。図７Ａ及び図７Ｂは、臭気誘導部４０の変形例について説明する図である。図７Ａでは、吸収体２１の所定の領域に、吸収体２１を厚さ方向に圧搾したエンボス部２１Ｅ（圧搾部）が設けられており、当該エンボス部２１Ｅによって臭気誘導部４０が構成されている。エンボス部２１Ｅは、吸収体２１の長手方向に沿って連続して圧搾された線状の圧搾部であり、エンボス部２１Ｅが設けられている部分では、他の領域と比較して吸収体２１の密度が高くなっている。したがって便に含まれる水分（便汁）は、当該エンボス部２１Ｅに沿って吸収体２１を長手方向に移動し易くなり、臭気センサー６０に誘導されやすくなる。なお、エンボス部２１Ｅは、小さなドット状の圧搾部が、長手方向に沿って複数並ぶことによって線状に形成されているのであっても良い。 Further, the odor guiding unit 40 provided in the diaper 1 may have a configuration other than that shown in FIG. 7A and 7B are diagrams illustrating a modified example of the odor inducing unit 40. In FIG. 7A, an embossed portion 21E (squeezed portion) in which the absorber 21 is squeezed in the thickness direction is provided in a predetermined region of the absorber 21, and the odor inducing portion 40 is configured by the embossed portion 21E. .. The embossed portion 21E is a linear squeezed portion continuously squeezed along the longitudinal direction of the absorber 21, and in the portion where the embossed portion 21E is provided, the absorber 21 is compared with other regions. The density is high. Therefore, the water (stool juice) contained in the stool is likely to move in the longitudinal direction of the absorber 21 along the embossed portion 21E, and is easily guided by the odor sensor 60. The embossed portion 21E may be formed in a linear shape by arranging a plurality of small dot-shaped pressed portions along the longitudinal direction.
　また、図７Ｂでは、吸収体２１の幅方向中央部が厚さ方向に切り欠かれたスリット部２１Ｓが設けられており、当該スリット部２１Ｓによって臭気誘導部４０が構成されている。スリット部２１Ｓは、凹部２１Ａと同様に、長手方向に沿って帯状に延びる領域に形成され、また、凹部２１Ａと比較して坪量，密度，厚さが何れも小さくなっている（坪量，密度，厚さが何れもゼロである）。したがって、このようなスリット部２１Ｓが設けられていることにより、おむつ１において、便汁や臭気を長手方向及び厚さ方向により移動させ易くなり、臭気センサー６０による***検知精度を高めることができる。 Further, in FIG. 7B, a slit portion 21S in which the central portion in the width direction of the absorber 21 is cut out in the thickness direction is provided, and the slit portion 21S constitutes the odor guiding portion 40. Similar to the recess 21A, the slit portion 21S is formed in a region extending in a band shape along the longitudinal direction, and the basis weight, density, and thickness are all smaller than those of the recess 21A (basis weight, Both density and thickness are zero). Therefore, by providing such a slit portion 21S, in the diaper 1, stool juice and odor can be easily moved in the longitudinal direction and the thickness direction, and the excretion detection accuracy by the odor sensor 60 can be improved.
　なお、凹部２１Ａの場合と同様に、スリット部２１Ｓは、長手方向において、中央位置ＣＬを跨いで配置されていることが望ましく、当接部ＳＡの後側端を跨いで配置されていることがより望ましい。スリット部２１Ｓ（臭気誘導部４０）が、当接部の外側（当接部ＳＡの後側端よりも後側）から当接部の内側（当接部ＳＡの後側端よりも前側）まで連続して設けられていることにより、肛門にて***された便の臭気や便汁が当接部ＳＡまで誘導され易くなり、臭気センサー６０による***検知精度をより高めることができる。 As in the case of the recess 21A, it is desirable that the slit portion 21S is arranged so as to straddle the central position CL in the longitudinal direction, and it is desirable that the slit portion 21S is arranged so as to straddle the rear end of the contact portion SA. More desirable. The slit portion 21S (odor guiding portion 40) extends from the outside of the contact portion (rear side of the rear end of the contact portion SA) to the inside of the contact portion (front side of the rear end of the contact portion SA). Since the stools are continuously provided, the odor and stool juice of the stool excreted in the anus can be easily guided to the contact portion SA, and the excretion detection accuracy by the odor sensor 60 can be further improved.
　また、おむつ１において、臭気誘導部４０を設けることによって、便の臭気や便汁を当接部ＳＡに誘導したとしても、臭気センサー６０の取り付け位置が適切でない場合、検知精度が悪化するおそれがある。すなわち、***物の検知精度を向上させるためには、臭気センサー６０の臭気導入部６６の位置が、臭気誘導部４０の位置と重複するように、臭気センサー６０をおむつ１に取り付ける必要がある。そこで、おむつ１の当接部ＳＡにおいて、おむつ１の外側面（外装シート２７）に臭気センサー６０の取り付け位置を案内するための案内表示５０を設けておくことが望ましい。例えば、図５には、当接部ＳＡにおいて臭気センサー６０を取り付けるのに最適な位置に、臭気センサー６０（筐体６１）の外縁に合わせたリング状の案内表示５０が設けられている。 Further, even if the odor guiding portion 40 is provided in the diaper 1 to guide the odor of stool or stool juice to the contact portion SA, if the mounting position of the odor sensor 60 is not appropriate, the detection accuracy may deteriorate. be. That is, in order to improve the detection accuracy of excrement, it is necessary to attach the odor sensor 60 to the diaper 1 so that the position of the odor introducing portion 66 of the odor sensor 60 overlaps with the position of the odor guiding portion 40. Therefore, in the contact portion SA of the diaper 1, it is desirable to provide a guide display 50 for guiding the mounting position of the odor sensor 60 on the outer surface (exterior sheet 27) of the diaper 1. For example, in FIG. 5, a ring-shaped guide display 50 aligned with the outer edge of the odor sensor 60 (housing 61) is provided at an optimum position for attaching the odor sensor 60 in the contact portion SA.
　このような案内表示５０があれば、おむつ１に臭気センサー６０を取り付ける際に、使用者は、当該案内表示５０にしたがって、臭気センサー６０を適切な位置に迷うことなく取り付けることができる。なお、案内表示５０の構成は、図５に示される例には限られず、文字と図形を組み合わせることによって、臭気センサー６０の取り付け位置をより明確に表示したり、臭気センサー６０の取り付け位置に加えて臭気誘導部４０の位置を表示したりするのであっても良い。また、案内表示５０には、臭気センサー６０のうち臭気導入部６６を配置するべき位置を指示する情報が含まれていることが望ましい。例えば、図５の場合、臭気導入部６６が上下方向の下側となるように臭気センサー６０を取り付けることを指示する情報が、案内表示５０に含まれるようにしても良い。 With such a guidance display 50, when attaching the odor sensor 60 to the diaper 1, the user can attach the odor sensor 60 to an appropriate position according to the guidance display 50 without hesitation. The configuration of the guidance display 50 is not limited to the example shown in FIG. 5, and by combining characters and figures, the mounting position of the odor sensor 60 can be displayed more clearly, and in addition to the mounting position of the odor sensor 60. The position of the odor guiding unit 40 may be displayed. Further, it is desirable that the guidance display 50 includes information indicating the position of the odor sensor 60 where the odor introduction unit 66 should be arranged. For example, in the case of FIG. 5, the guidance display 50 may include information instructing the odor sensor 60 to be attached so that the odor introduction unit 66 is on the lower side in the vertical direction.
＝＝＝第２実施形態＝＝＝
　第２実施形態では、前身頃及び後身頃の幅方向の両側端部が互いに接合されたパンツ型使い捨ておむつ２について説明する。 === Second embodiment ===
In the second embodiment, the pants-type disposable diaper 2 in which both side ends in the width direction of the front body and the back body are joined to each other will be described.
　＜パンツ型使い捨ておむつ２の基本構成＞
　図８は、パンツ使い捨ておむつ２（以下「おむつ２」ともいう）が展開かつ伸長された状態における平面図である。 <Basic configuration of pants-type disposable diaper 2>
FIG. 8 is a plan view of the pants disposable diaper 2 (hereinafter, also referred to as “diaper 2”) in a deployed and extended state.
　第２実施形態のおむつ２は、図８の展開状態において、第１実施形態のおむつ１と同様に互いに交差する長手方向と、幅方向と、厚さ方向とを有する。そして、おむつ２の長手方向において中央位置ＣＬよりも前側の領域を前部２Ｆ、中央位置ＣＬよりも後側の領域を後部２Ｂとする。また、おむつ２は、着用時のパンツ型状態において、互いに直交する三方向として上下方向と左右方向と前後方向とを有する。 The diaper 2 of the second embodiment has a longitudinal direction, a width direction, and a thickness direction that intersect each other in the unfolded state of FIG. 8, similarly to the diaper 1 of the first embodiment. Then, in the longitudinal direction of the diaper 2, the region on the front side of the central position CL is referred to as the front portion 2F, and the region on the rear side of the central position CL is referred to as the rear portion 2B. Further, the diaper 2 has a vertical direction, a horizontal direction, and a front-back direction as three directions orthogonal to each other in the pants-shaped state when worn.
　図８に示すように、おむつ２は所謂３ピースタイプのおむつであり、３つの部品２１，７０，８０を有している。すなわち、おむつ２は、第１部品として、着用者の股間部にあてがわれ尿等の***物を吸収する吸収体２１を有し、第２部品として、同着用者の前側から腹側部を覆う前側帯部材７０を有し、第３部品として、同着用者の後側から背側部を覆う後側帯部材８０を有している。 As shown in FIG. 8, the diaper 2 is a so-called three-piece type diaper and has three parts 21, 70 and 80. That is, the diaper 2 has an absorber 21 as a first part, which is applied to the crotch part of the wearer and absorbs excrement such as urine, and as a second part, the front side to the ventral side of the wearer. It has a front band member 70 that covers it, and as a third component, it has a rear band member 80 that covers the back side from the rear side of the wearer.
　おむつ２の展開状態において、前側帯部材７０（前身頃）と後側帯部材８０（後身頃）とは互いに吸収体２１の長手方向（上下方向）に間隔をあけて平行に並んだ状態で、これらの間に吸収体２１が掛け渡されている。そして、吸収体２１の前側上端部が前側帯部材７０の肌側に接合固定され、吸収体２１の後側上端部が後側帯部材８０の肌側に接合固定されており、その外観形状は平面視略Ｈ形状をなしている。 In the unfolded state of the diaper 2, the front side band member 70 (front body) and the rear side band member 80 (rear body) are arranged in parallel with each other in the longitudinal direction (vertical direction) of the absorber 21. The absorber 21 is hung between the two. The front upper end of the absorber 21 is joined and fixed to the skin side of the front band member 70, and the rear upper end of the absorber 21 is joined and fixed to the skin side of the rear band member 80. It has a substantially H shape.
　そして、この状態から、吸収体２１が長手方向の中央位置ＣＬにて二つ折りされる。すなわち、股下部にて前後に折り曲げられる。この二つ折りの状態において互いに対向する前側帯部材７０と後側帯部材８０とが、着用者の脇腹に当接すべき部分である側縁接合部７０ｅｗと、側縁接合部８０ｅｗと（つまり、左右方向の両端部）にて接合・連結されると、これら帯部材７０，８０同士が環状に成形される。これにより、胴周り開口及び一対の脚周り開口が形成されたパンツ型形状となる。 Then, from this state, the absorber 21 is folded in half at the center position CL in the longitudinal direction. That is, it is bent back and forth at the lower crotch. In this folded state, the front side band member 70 and the rear side band member 80 facing each other have a side edge joint portion 70ew and a side edge joint portion 80ew (that is, left and right) which are portions that should abut on the wearer's flank. When joined and connected at both ends in the direction), these band members 70 and 80 are formed into an annular shape. As a result, a pants-shaped shape is formed in which an opening around the waist and a pair of openings around the legs are formed.
　おむつ２の吸収体２１は、おむつ１の吸収体２１と略同様の構成を有している。すなわち、吸収体２１は、液吸収性の吸収性コア２４と、吸収性コア２４を被覆する液透過性のコアラップシート２５とを備えている。また、吸収体２１の厚さ方向の肌側に、吸収性コア２４を肌側から覆う液透過性のトップシート２２が設けられ、吸収性コア２４とトップシート２２との厚さ方向の間に、液透過性のセカンドシート３５が設けられている。吸収体２１の厚さ方向の非肌側には、吸収性コア２４を非肌側から覆う液不透過性のバックシート２３、及び、外装シート２７が設けられている。 The absorber 21 of the diaper 2 has substantially the same configuration as the absorber 21 of the diaper 1. That is, the absorber 21 includes a liquid-absorbing absorbent core 24 and a liquid-permeable core wrap sheet 25 that covers the absorbent core 24. Further, a liquid-permeable top sheet 22 that covers the absorbent core 24 from the skin side is provided on the skin side of the absorber 21 in the thickness direction, and is provided between the absorbent core 24 and the top sheet 22 in the thickness direction. , A liquid permeable second sheet 35 is provided. On the non-skin side of the absorber 21 in the thickness direction, a liquid-impermeable back sheet 23 that covers the absorbent core 24 from the non-skin side and an exterior sheet 27 are provided.
　前側帯部材７０（前身頃）は、不織布７１，７２を厚さ方向に二枚重ねに接合することで形成されている。そして、２枚の不織布７１，７２同士の間には、左右方向に沿って糸ゴム等の複数の胴回り弾性部材７５，７５…が配置されている。胴回り弾性部材７５，７５…は、上下方向に間隔をあけながら上下方向に並んで介挿されつつ、左右方向に伸長された状態で同不織布７１，７２に接合固定されている。これにより、前側帯部材７０には左右方向（幅方向）に伸縮可能となっている。 The front side band member 70 (front body) is formed by joining the non-woven fabrics 71 and 72 in two layers in the thickness direction. A plurality of elastic members around the waist such as rubber threads 75, 75 ... Are arranged between the two nonwoven fabrics 71 and 72 along the left-right direction. The waistline elastic members 75, 75 ... Are joined and fixed to the nonwoven fabrics 71 and 72 in a state of being stretched in the left-right direction while being inserted side by side in the up-down direction with an interval in the up-down direction. As a result, the front band member 70 can be expanded and contracted in the left-right direction (width direction).
　同様に、後側帯部材８０（後身頃）は、不織布８１，８２を厚さ方向に二枚重ねに接合することで形成されている。そして、２枚の不織布８１，８２同士の間には、左右方向に沿って糸ゴム等の複数の胴回り弾性部材８５，８５…が配置されている。胴回り弾性部材８５，８５…は、上下方向に間隔をあけながら上下方向に並んで介挿されつつ、左右方向に伸長された状態で同不織布８１，８２に接合固定されている。これにより、後側帯部材８０には左右方向（幅方向）に伸縮可能となっている。 Similarly, the rear band member 80 (rear body) is formed by joining the nonwoven fabrics 81 and 82 in two layers in the thickness direction. A plurality of elastic members around the waist such as rubber threads 85, 85 ... Are arranged between the two nonwoven fabrics 81, 82 along the left-right direction. The waistline elastic members 85, 85 ... Are joined and fixed to the non-woven fabrics 81, 82 in a state of being stretched in the left-right direction while being inserted side by side in the up-down direction with an interval in the up-down direction. As a result, the rear band member 80 can be expanded and contracted in the left-right direction (width direction).
　おむつ１と同様に、おむつ２においても、外装シート２７の外側（非肌側）に臭気センサー６０（***臭気検知装置）を取り付けることで、***を検知することができる。臭気センサー６０を取り付ける際に底面部６１ｂを当接させる部分である当接部ＳＡは、おむつ２の長手方向における中央位置ＣＬよりも前側（前部２Ｆ）、且つ、吸収体２１（吸収性コア２４）と重複する領域であることが望ましい。さらに、吸収体２１の長手方向における長さＬ２１Ｆを２等分した場合の下側の領域であって、且つ、吸収体２１の幅方向における長さ（幅）Ｗ２１Ｆを３等分した場合の中央の領域であることがより望ましい。 Similar to diaper 1, diaper 2 can detect excretion by attaching an odor sensor 60 (excretion odor detecting device) to the outside (non-skin side) of the exterior sheet 27. The contact portion SA, which is a portion that abuts the bottom surface portion 61b when the odor sensor 60 is attached, is on the front side (front portion 2F) of the central position CL in the longitudinal direction of the diaper 2 and the absorber 21 (absorbent core). It is desirable that the area overlaps with 24). Further, it is the lower region when the length L21F in the longitudinal direction of the absorber 21 is divided into two equal parts, and the center when the length (width) W21F in the width direction of the absorber 21 is divided into three equal parts. It is more desirable to be in the area of.
　そして、当接部ＳＡよりも肌側の領域には、おむつ１と同様の臭気誘導部４０が設けられており（図６参照）、この臭気誘導部４０によって、便の臭気を臭気センサー６０まで到達させやすくすることができる。すなわち、第２実施形態のおむつ２も、おむつ１と同様に当接部ＳＡの或る位置における通気透過率や便（便汁）の透過率が、当接部ＳＡ以外の或る位置における通気透過率や便（便汁）の透過率よりも高くなるように構成されている。これにより、便の臭気や便汁が厚さ方向に移動し易くなり、厚さ方向の肌側且つ長手方向の後側にて***された便等の臭気が、厚さ方向の非肌側且つ長手方向の前側に設置された臭気センサー６０に到達し易くなる。したがって、***の検知精度を向上させることができる。
＝＝＝その他の実施の形態＝＝＝ An odor guiding portion 40 similar to that of the diaper 1 is provided in the area on the skin side of the contact portion SA (see FIG. 6), and the odor guiding portion 40 transfers the odor of stool to the odor sensor 60. It can be made easier to reach. That is, in the diaper 2 of the second embodiment as well as the diaper 1, the air permeability at a certain position of the contact portion SA and the transmittance of the stool (stool juice) are the air permeability at a certain position other than the contact portion SA. It is configured to be higher than the transmittance and the transmittance of stool (stool juice). This facilitates the movement of stool odor and stool juice in the thickness direction, and the odor of stool and the like excreted on the skin side in the thickness direction and the posterior side in the longitudinal direction is on the non-skin side in the thickness direction and on the non-skin side. It becomes easier to reach the odor sensor 60 installed on the front side in the longitudinal direction. Therefore, the accuracy of excretion detection can be improved.
=== Other embodiments ===
　以上、本発明の実施形態について説明したが、上記の実施形態は、本発明の理解を容易にするためのものであり、本発明を限定して解釈するためのものではない。また、本発明は、その趣旨を逸脱すること無く、変更や改良され得るとともに、本発明にはその等価物が含まれるのはいうまでも無い。 Although the embodiments of the present invention have been described above, the above-described embodiments are for facilitating the understanding of the present invention, and are not intended to limit the interpretation of the present invention. Further, the present invention can be changed or improved without departing from the spirit thereof, and it goes without saying that the present invention includes an equivalent thereof.
　上述の実施形態では、セカンドシート３５（拡散シート）を厚さ方向においてトップシート２２と吸収体２１との間に配置しているが、当該セカンドシート３５とは別に、液体を拡散させる拡散シートを吸収体２１とバックシート２３との間に配置しても良い。このような構成であれば、吸収体２１を透過した便の水分を吸収体２１の下層で拡散させ、臭気センサー６０に便の臭気を到達させやすくすることができる。 In the above-described embodiment, the second sheet 35 (diffusion sheet) is arranged between the top sheet 22 and the absorber 21 in the thickness direction, but separately from the second sheet 35, a diffusion sheet for diffusing the liquid is provided. It may be arranged between the absorber 21 and the back sheet 23. With such a configuration, the moisture of the stool that has passed through the absorber 21 can be diffused in the lower layer of the absorber 21 so that the odor of the stool can easily reach the odor sensor 60.
　上述の実施形態では、臭気誘導部４０を構成する凹部２１Ａが、おむつ１の幅方向の中央部に１つ設けられていたが、凹部２１Ａが複数設けられているのであっても良い。この場合、長手方向及び幅方向において複数の凹部２１Ａが配置されている部分が臭気誘導部４０となる。そして、このような臭気誘導部４０と重複するように臭気センサー６０を配置することよって、精度よく***検知を行うことができる。 In the above-described embodiment, one recess 21A constituting the odor guiding portion 40 is provided in the central portion in the width direction of the diaper 1, but a plurality of recesses 21A may be provided. In this case, the portion where the plurality of recesses 21A are arranged in the longitudinal direction and the width direction becomes the odor guiding portion 40. By arranging the odor sensor 60 so as to overlap with the odor guiding unit 40, excretion detection can be performed with high accuracy.
１　テープ型使い捨ておむつ（吸収性物品、おむつ）（第１実施形態）、
１Ｆ　前部、１Ｂ　後部、
２　パンツ型使い捨ておむつ（吸収性物品、おむつ）（第２実施形態）、
２Ｆ　前部、２Ｂ　後部、
３　前部、５　股下部、７　後部、
１２　中央帯状領域、１４　サイドフラップ、１５　レッグギャザー弾性部材、
１６　レッグギャザー、１７　レッグサイドギャザー、
１８　レッグサイドギャザー弾性部材、
２１　吸収体、
２１Ａ　凹部、２１Ｅ　エンボス部（圧搾部）、２１Ｓ　スリット部、
２２　トップシート（液透過性シート）、２２ｈ　貫通孔、
２３　バックシート（液不透過性シート）、
２４　吸収性コア、２５　コアラップシート、
２６　肌側シート、
２７　外装シート、２７ｈ　貫通孔、
２８　脚周り弾性部材、
２９　ターゲットテープ、
３０　ファスニングテープ、
３５　セカンドシート（拡散シート）、
４０　臭気誘導部、
５０　案内表示、
６０　臭気センサー、
６１　筐体、６１ａ　カバー部、６１ｂ　底面部、６２　検知部、６３　制御部、６４　記憶部、６５　通信部、６６　臭気導入部、６６ｐ　貫通孔、６７　取り付け部、
７０　前側帯部材、７０ｅｗ　側縁接合部、
７１　不織布、７２不織布、７５　胴回り弾性部材、
８０　後側帯部材、８０ｅｗ　側縁接合部、
８１　不織布、８２不織布、８５　胴回り弾性部材、
ＣＬ　中央位置（長手方向）、
ＳＡ　当接部
  1 Tape-type disposable diapers (absorbent articles, diapers) (first embodiment),
1F front, 1B rear,
2 Pants-type disposable diapers (absorbent articles, diapers) (second embodiment),
2F front, 2B rear,
3 front, 5 inseam, 7 rear,
12 central strip area, 14 side flaps, 15 leg gather elastic members,
16 leg gathers, 17 leg side gathers,
18 leg side gather elastic member,
21 Absorber,
21A recess, 21E embossed part (squeezed part), 21S slit part,
22 Top sheet (liquid permeable sheet), 22h through hole,
23 Back sheet (liquid impermeable sheet),
24 absorbent cores, 25 core wrap sheets,
26 Skin side sheet,
27 exterior sheet, 27h through hole,
28 Elastic members around the legs,
29 Target tape,
30 Fastening tape,
35 Second sheet (diffusion sheet),
40 Odor inducer,
50 Guidance display,
60 Odor sensor,
61 housing, 61a cover, 61b bottom, 62 detection, 63 control, 64 storage, 65 communication, 66 odor introduction, 66p through hole, 67 mounting,
70 front band member, 70 ew side edge joint,
71 non-woven fabric, 72 non-woven fabric, 75 elastic member around the waist,
80 rear band member, 80 ew side edge joint,
81 non-woven fabric, 82 non-woven fabric, 85 elastic member around the waist,
CL center position (longitudinal direction),
SA contact part

Claims (17)

  1. 　吸収体を備え、
    　着用時に前側となる部分であって、且つ、前記吸収体よりも非肌側となる部分に、便の臭気を検知する***臭気検知装置を取り外し可能に取り付ける際に当該***臭気検知装置に当接する当接部を有する吸収性物品であって、
    　前記当接部よりも肌側に、前記便の臭気を誘導する臭気誘導部を有する、ことを特徴とする吸収性物品。     Equipped with an absorber,
    When the excretory odor detection device that detects the odor of stool is detachably attached to the part that is on the front side when worn and is on the non-skin side of the absorber, it comes into contact with the excretion odor detection device. An absorbent article having a contact portion, which is an absorbent article.
    An absorbent article characterized by having an odor-inducing portion for inducing the odor of the stool on the skin side of the abutting portion.
  2. 　請求項１に記載の吸収性物品であって、
    　前記当接部の或る位置において、前記吸収性物品の厚さ方向に便の臭気を透過させる際の通気透過率は、
    　前記当接部以外の部分の或る位置において、前記厚さ方向に便の臭気を透過させる際の通気透過率よりも大きい、ことを特徴とする吸収性物品。     The absorbent article according to claim 1.
    At a certain position of the contact portion, the air permeability when the odor of stool is permeated in the thickness direction of the absorbent article is determined.
    An absorbent article characterized in that, at a certain position of a portion other than the contact portion, the air permeability is larger than the air permeability when the odor of stool is permeated in the thickness direction.
  3. 　請求項１または２に記載の吸収性物品であって、
    　前記臭気誘導部における前記吸収体の坪量は、前記臭気誘導部の周囲における前記吸収体の坪量よりも小さい、ことを特徴とする吸収性物品。     The absorbent article according to claim 1 or 2.
    An absorbent article characterized in that the basis weight of the absorber in the odor inducer is smaller than the basis weight of the absorber around the odor inducer.
  4. 　請求項１～３のいずれか１項に記載の吸収性物品であって、
    　前記臭気誘導部における前記吸収体の厚みは、前記臭気誘導部の周囲における前記吸収体の厚みよりも小さい、ことを特徴とする吸収性物品。     The absorbent article according to any one of claims 1 to 3.
    An absorbent article characterized in that the thickness of the absorber in the odor-inducing portion is smaller than the thickness of the absorber in the periphery of the odor-inducing portion.
  5. 　請求項１～４のいずれか１項に記載の吸収性物品であって、
    　前記吸収体の非肌側に、複数の通気孔を備えた液不透過シートを有し、
    　前記吸収性物品の厚さ方向に見たときに、少なくとも前記臭気誘導部と重複する領域において、前記液不透過シートが平面方向に延伸されている、ことを特徴とする吸収性物品。     The absorbent article according to any one of claims 1 to 4.
    A liquid-impermeable sheet having a plurality of ventilation holes is provided on the non-skin side of the absorber.
    An absorbent article characterized in that the liquid impermeable sheet is stretched in a plane direction at least in a region overlapping the odor-inducing portion when viewed in the thickness direction of the absorbent article.
  6. 　請求項１～５のいずれか１項に記載の吸収性物品であって、
    　前記吸収性物品の最も非肌側に配置された外装シートを有し、
    　前記臭気誘導部において、前記外装シートを厚さ方向に貫通する貫通孔が設けられている、ことを特徴とする吸収性物品。     The absorbent article according to any one of claims 1 to 5.
    It has an exterior sheet placed on the most non-skin side of the absorbent article,
    An absorbent article characterized in that the odor guiding portion is provided with a through hole that penetrates the exterior sheet in the thickness direction.
  7. 　請求項１～６のいずれか１項に記載の吸収性物品であって、
    　前記当接部の或る位置において、前記吸収性物品の厚さ方向に人工便を透過させる際の人工便透過率は、
    　前記当接部以外の部分の或る位置において、前記厚さ方向に人工便を透過させる際の人工便透過率よりも大きい、ことを特徴とする吸収性物品。     The absorbent article according to any one of claims 1 to 6.
    At a certain position of the contact portion, the artificial stool transmittance when the artificial stool is permeated in the thickness direction of the absorbent article is determined.
    An absorbent article characterized in that, at a certain position of a portion other than the contact portion, the artificial stool permeability is higher than the artificial stool permeability when the artificial stool is permeated in the thickness direction.
  8. 　請求項１～７のいずれか１項に記載の吸収性物品であって、
    　前記臭気誘導部における前記吸収体の密度は、前記臭気誘導部の周囲における前記吸収体の密度よりも大きい、ことを特徴とする吸収性物品。     The absorbent article according to any one of claims 1 to 7.
    An absorbent article characterized in that the density of the absorber in the odor-inducing portion is higher than the density of the absorber in the vicinity of the odor-inducing portion.
  9. 　請求項１～８のいずれか１項に記載の吸収性物品であって、
    　前記吸収体よりも肌側に、液透過性シートを有し、
    　前記臭気誘導部において、前記液透過性シートを厚さ方向に貫通する貫通孔が設けられている、ことを特徴とする吸収性物品。     The absorbent article according to any one of claims 1 to 8.
    It has a liquid permeable sheet on the skin side of the absorber.
    An absorbent article characterized in that the odor inducing portion is provided with a through hole that penetrates the liquid permeable sheet in the thickness direction.
  10. 　請求項９に記載の吸収性物品であって、
    　前記臭気誘導部において、前記液透過性シートと前記吸収体との間に、前記液透過性シートよりも密度が高いセカンドシートが設けられている、ことを特徴とする吸収性物品。     The absorbent article according to claim 9.
    An absorbent article characterized in that, in the odor inducing portion, a second sheet having a higher density than the liquid permeable sheet is provided between the liquid permeable sheet and the absorbent body.
  11. 　請求項１～１０のいずれか１項に記載の吸収性物品であって、
    　前記臭気誘導部は、前記吸収性物品を展開且つ伸長させた状態の長手方向において、中央位置を跨いで配置されている、ことを特徴とする吸収性物品。     The absorbent article according to any one of claims 1 to 10.
    The odor-inducing portion is an absorbent article characterized in that it is arranged so as to straddle a central position in the longitudinal direction in a state where the absorbent article is expanded and extended.
  12. 　請求項１１に記載の吸収性物品であって、
    　前記臭気誘導部は、前記吸収性物品を展開且つ伸長させた状態の長手方向において、前記当接部の後側端を跨いで配置されている、ことを特徴とする吸収性物品。     The absorbent article according to claim 11.
    The odor-inducing portion is an absorbent article characterized in that it is arranged so as to straddle the rear end of the contact portion in the longitudinal direction in a state where the absorbent article is expanded and extended.
  13. 　請求項１～１２のいずれか１項に記載の吸収性物品であって、
    　前記臭気誘導部において、前記吸収体よりも肌側に、人工便を平面方向に拡散させる拡散シートが設けられている、ことを特徴とする吸収性物品。     The absorbent article according to any one of claims 1 to 12.
    An absorbent article characterized in that, in the odor inducing portion, a diffusion sheet for diffusing artificial stool in a plane direction is provided on the skin side of the absorber.
  14. 　請求項１～１３のいずれか１項に記載の吸収性物品であって、
    　前記臭気誘導部において、前記吸収体には、前記吸収体の密度が周囲の密度よりも大きく、且つ、前記吸収性物品を展開且つ伸長させた状態の長手方向に連続した圧搾部が設けられている、ことを特徴とする吸収性物品。     The absorbent article according to any one of claims 1 to 13.
    In the odor inducing portion, the absorber is provided with a squeezing portion which has a density higher than that of the surroundings and is continuous in the longitudinal direction in a state where the absorbent article is expanded and stretched. Absorbent article characterized by being.
  15. 　請求項１～１４のいずれか１項に記載の吸収性物品であって、
    　前記臭気誘導部において、前記吸収体には、前記吸収性物品を展開且つ伸長させた状態における長手方向に沿ったスリット部が設けられている、ことを特徴とする吸収性物品。     The absorbent article according to any one of claims 1 to 14.
    An absorbent article characterized in that, in the odor inducing portion, the absorber is provided with a slit portion along the longitudinal direction in a state where the absorbent article is expanded and extended.
  16. 　請求項１５に記載の吸収性物品であって、
    　前記スリット部は、前記長手方向において、前記当接部の後側端を跨いで配置されている、ことを特徴とする吸収性物品。     The absorbent article according to claim 15.
    An absorbent article characterized in that the slit portion is arranged so as to straddle the rear end of the contact portion in the longitudinal direction.
  17. 　請求項１～１４のいずれか１項に記載の吸収性物品であって、
    　前記当接部において、前記***臭気検知装置の取り付け位置を案内する案内表示を有する、ことを特徴とする吸収性物品。
          The absorbent article according to any one of claims 1 to 14.
    An absorbent article characterized by having a guide display at the contact portion for guiding the mounting position of the excretory odor detecting device.
PCT/JP2021/041893 2020-12-16 2021-11-15 Absorbent article WO2022130871A1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003111797A (en) * 2002-09-06 2003-04-15 Denso Corp Device for detecting diaper exchange time
JP2014515305A (en) * 2011-06-03 2014-06-30 ザ プロクター アンド ギャンブル カンパニー Sensor system with anti-suffocation properties
JP2014527623A (en) * 2011-07-20 2014-10-16 イーテクト，インコーポレイテッド Wet sensor, wetness monitoring system, and related methods
JP2017158654A (en) * 2016-03-07 2017-09-14 ユニ・チャーム株式会社 Absorbent article
JP2019146753A (en) * 2018-02-27 2019-09-05 ユニ・チャーム株式会社 Absorbent article
JP2020081342A (en) * 2018-11-22 2020-06-04 ユニ・チャーム株式会社 Absorbent article

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003111797A (en) * 2002-09-06 2003-04-15 Denso Corp Device for detecting diaper exchange time
JP2014515305A (en) * 2011-06-03 2014-06-30 ザ プロクター アンド ギャンブル カンパニー Sensor system with anti-suffocation properties
JP2014527623A (en) * 2011-07-20 2014-10-16 イーテクト，インコーポレイテッド Wet sensor, wetness monitoring system, and related methods
JP2017158654A (en) * 2016-03-07 2017-09-14 ユニ・チャーム株式会社 Absorbent article
JP2019146753A (en) * 2018-02-27 2019-09-05 ユニ・チャーム株式会社 Absorbent article
JP2020081342A (en) * 2018-11-22 2020-06-04 ユニ・チャーム株式会社 Absorbent article

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