WO2022009686A1 - 吸収性物品 - Google Patents
吸収性物品 Download PDFInfo
- Publication number
- WO2022009686A1 WO2022009686A1 PCT/JP2021/023923 JP2021023923W WO2022009686A1 WO 2022009686 A1 WO2022009686 A1 WO 2022009686A1 JP 2021023923 W JP2021023923 W JP 2021023923W WO 2022009686 A1 WO2022009686 A1 WO 2022009686A1
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- WO
- WIPO (PCT)
- Prior art keywords
- skin
- cuff
- sheet
- absorbent article
- upright
- Prior art date
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Classifications
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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
- A61F13/45—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 shape
- A61F13/47—Sanitary towels, incontinence pads or napkins
- A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
-
- 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
- A61F13/45—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 shape
- A61F13/47—Sanitary towels, incontinence pads or napkins
- A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
- A61F13/4751—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction
- A61F13/4752—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means being an upstanding barrier
-
- 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
- A61F13/45—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 shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/49007—Form-fitting, self-adjusting disposable diapers
- A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
-
- 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
- A61F13/45—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 shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
-
- 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
- A61F13/51—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 outer layers
- A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
-
- 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
- A61F13/45—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 shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/49007—Form-fitting, self-adjusting disposable diapers
- A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
- A61F2013/49041—Form-fitting, self-adjusting disposable diapers with elastic means having a specific location other than covered by groups A61F13/49011 - A61F13/49019
-
- 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
- A61F13/45—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 shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
- A61F2013/4948—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being elastic
-
- 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
- A61F13/45—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 shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
- A61F2013/49493—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being or forming three-dimensional barrier with raised lateral side-or end-wall
Definitions
- the present invention relates to an absorbent article.
- Patent Document 1 discloses an absorbent article having side gathers formed by adhering elastic members between laminated side sheets as a leak-proof cuff. Such side gathers are provided with first and second non-adhesive regions in which the laminated side sheets are not adhered to each other and outside in the front-rear direction of the elastic member and between the elastic members. The widthwise lengths of the non-bonded areas are different from each other.
- Patent Document 2 discloses an absorbent article having a leak-proof wall having a joint portion and a non-joint portion at a predetermined position as a leak-proof cuff.
- a leak-proof wall has a joint portion in which one side surface in the thickness direction is joined to at least a part of a region corresponding to a recessed portion of the absorbent core in the longitudinal direction, and the said in the longitudinal direction.
- At least one of the region on one end side and the region on the other side of the joint portion has a non-joint portion in which the surfaces on one side in the thickness direction are not joined to each other.
- the present invention has a vertical direction corresponding to the front-back direction of the wearer and a lateral direction orthogonal to the vertical direction, and also has a crotch portion arranged in the crotch portion of the wearer and a ventral side extending in the front-rear direction of the crotch portion.
- An absorbent body having a portion and a dorsal portion and including a liquid-retaining absorber, and a pair of leak-proof cuffs arranged along both sides of the absorbent body along the longitudinal direction.
- the leak-proof cuff has a band-shaped skin contact portion having a skin contact surface that comes into contact with the wearer's skin, and an upright sheet portion located between the skin contact portion and the absorbent body.
- the leak-proof cuff has an upright region in the lower crotch where the upright seat portion stands up toward the skin side of the wearer due to the contraction of the elastic member arranged on the skin contact portion.
- the upright sheet portion is fixed on the absorbent body on at least one of the ventral side portion and the dorsal side portion, and the skin contact portion is fixed to the in-cuff fixing portion via the upright sheet portion.
- the skin side sheet forming the skin contact surface and the non-skin side sheet on which the skin side sheet faces each other are non-bonded, and the fixed portion in the cuff is formed.
- the skin is located at a portion other than both ends of the skin contact portion in the lateral direction.
- FIG. 1 is a developed plan view schematically showing a skin facing surface side (inner surface side) in an expanded and extended state in one embodiment of the absorbent article of the present invention.
- FIG. 2 is a cross-sectional view taken along the lateral direction of the leak-proof cuff in the inseam shown in FIG.
- FIG. 3 is a cross-sectional view taken along the lateral direction of the leak-proof cuff in the non-upright region shown in FIG.
- FIG. 4 is a diagram corresponding to FIG. 3 for explaining the action and effect of the absorbent article of the present invention.
- FIG. 5 is a cross-sectional view taken along the lateral direction of the leakage-proof cuff in the vicinity of the vertical edge shown in FIG.
- FIG. 1 is a view showing a state before wearing.
- 6A and 6B are views showing another embodiment of the leak-proof cuff according to the present invention, FIG. 6A is a cross-sectional view of the leak-proof cuff in the inseam along the lateral direction, and FIG. 6B is a cross-sectional view. ) Is a cross-sectional view taken along the lateral direction of the leak-proof cuff in the non-standing area.
- 7A and 7B are views showing still another embodiment of the leak-proof cuff according to the present invention, FIG. 7A is a cross-sectional view taken along the lateral direction of the leak-proof cuff in the inseam, and FIG. b) is a cross-sectional view taken along the lateral direction of the leak-proof cuff in the non-upright region.
- FIG. 8 is a plan view showing an example of the cuff forming fixing portion.
- the leak-proof cuff is a member that comes into contact with the wearer's skin while the absorbent article is worn and prevents excrement from leaking laterally from the absorbent article. If the friction between the leak-proof cuff and the skin is excessive in the wearing state, the touch of the leak-proof cuff may be deteriorated, and further, there is a risk of causing a skin irritation.
- the absorbent articles described in Patent Documents 1 and 2 are insufficient in that they suppress friction between the leak-proof cuff and the skin to improve the feel on the skin.
- the present invention relates to an absorbent article that can eliminate the drawbacks of the above-mentioned prior art.
- FIG. 1 shows the configuration of the diaper 1 as viewed from the skin-facing surface side.
- the diaper 1 shown in FIG. 1 corresponds to the front-back direction of the wearer in its unfolded and extended state, and is orthogonal to the vertical direction X extending from the ventral side of the wearer to the dorsal side through the crotch portion and the vertical direction X. It has a lateral direction Y to be used.
- the diaper 1 has a crotch portion C located between the ventral portion A and the dorsal portion B arranged on the ventral side of the wearer and the ventral portion A and the dorsal portion B when the diaper 1 is worn.
- Each region A, B, and C is a region obtained by dividing the total length of the diaper 1 in the vertical direction X into three equal parts, and extends continuously in the front-rear direction of the wearer.
- the inseam C has an excretion portion facing portion (not shown) that is arranged to face the excretion portion of the wearer when the diaper 1 is worn.
- the diaper 1 includes a liquid-permeable surface sheet 2 that forms a skin-facing surface, and a liquid-impermeable (including water-repellent) leak-proof sheet 3 that forms a non-skin-facing surface.
- a liquid-retaining absorber 4 arranged between the surface sheet 2 and the leak-proof sheet 3 is provided, and these members constitute the absorbent main body 10.
- the surface sheet 2 and the leak-proof sheet 3 each have a larger size than the absorber 4, and extend outward from the outer peripheral edge of the absorber 4.
- the surface sheet 2 and the leak-proof sheet 3 extend outward in the horizontal direction Y from both side edges of the absorber 4 along the vertical direction X.
- the edges of both ends of the surface sheet 2 and the leak-proof sheet 3 in the present embodiment substantially coincide with the edges of both ends of the diaper 1 in the longitudinal direction.
- the diaper 1 includes a liquid-retaining absorber 4.
- the absorber 4 shown in FIG. 1 is arranged so that its longitudinal direction coincides with the vertical direction X of the diaper, and extends from the ventral side A to the dorsal side B via the inseam C.
- the both longitudinal edges of the absorber 4 are located inward of the longitudinal X bilateral edges of the diaper 1.
- the absorber 4 is formed by coating an absorbent core 40 having an absorbent performance on a liquid-permeable core wrap sheet (not shown).
- the absorbent core 40 of the present embodiment has a shape in which the four corners of a substantially rectangular shape long in one direction are notched diagonally, and has a portion confined in the lateral direction Y in the inseam C.
- the "expanded and stretched state” of the diaper 1 means that the diaper 1 is in the unfolded state, and the elastic member of each part of the unfolded diaper 1 is stretched to eliminate the influence of the elastic member. It means the state of being expanded until it becomes the same as the dimensions when it is expanded in a flat state.
- the "skin facing surface” is a surface facing the wearer's skin when wearing the diaper when focusing on the diaper or its constituent members (for example, an absorber), and the “non-skin facing surface” is the diaper. This is the surface that faces the wearer's skin when worn.
- the skin-facing surface is the surface relatively close to the wearer's skin
- the non-skin-facing surface is the surface relatively far from the wearer's skin.
- a pair of fastening tapes 7 and 7 are provided on both side edges of the waist flap portion WF of the dorsal portion B, which will be described later, along the vertical direction X.
- Each fastening tape 7 is arranged so as to extend from both side edges along the vertical direction X of the waist flap portion WF.
- One end of each fastening tape 7 on the inner side in the lateral direction is fixed between the sheet members constituting the diaper 1, for example, between the leak-proof sheet 3 and the exterior sheet (not shown).
- the non-skin facing surface of the ventral side A of the diaper 1 is provided with a fastening region (not shown) to which the fastening portion provided on the fastening tape 7 can be detachably fastened.
- a fastening region an appropriate material is selected according to the material of the fastening portion included in the fastening tape 7.
- the fastening portion is a male material of a mechanical fastener
- a fiber sheet that can engage with the male material for example, a knitted fabric or a non-woven fabric
- the fastening portion is an adhesive, for example, a smooth film made of synthetic resin can be used as the fastening region.
- a seat member such as an exterior sheet forming a non-skin facing surface on the ventral side A of the diaper 1 may be a fastening region.
- the diaper 1 includes a pair of leakage-proof cuffs 6 and 6 arranged along both sides of the absorbent body 10 along the vertical direction X.
- the leak-proof cuff 6 of the present embodiment has an upright region F2 in the inseam C where the upright seat portion 65 stands up toward the wearer's skin side (see FIG. 1). In the upright region F2, the leakage-proof cuff 6 is in an upright state.
- the upright region F2 is located at least in the inseam C.
- the leak-proof cuff 6 is fixed on the absorbent main body 10 and is free on the wearer's skin side with the fixed portion 23 fixed to the absorbent main body 10 in the upright region F2 as a base end. Stand up to form an edge.
- the leak-proof cuff 6 shown in FIG. 2 is not in an upright state because it is in the expanded and extended state of the diaper 1, but when the elastic member 61 for forming a cuff, which will be described later, is released from the extended state and contracted, the fixed portion is described. It stands upright with 23 as the base end.
- the base end on which the leakage-proof cuff 6 of the present embodiment stands is located on the lateral outer side of the absorber 4.
- the fixing portion 23 forming the base end is also referred to as a “side fixing portion” 23.
- the leak-proof cuff 6 is composed of a water-repellent and breathable cuff-forming sheet 16.
- one or more thread-shaped elastic members 61 for forming a cuff are arranged at the end on the inner side in the lateral direction in an extended state in the vertical direction X.
- the elastic member 61 for forming the cuff contracts, the leak-proof cuff 6 stands up at least at the inseam C, thereby suppressing the outflow of excrement such as urine to the outside in the lateral direction Y.
- the diaper 1 of the present embodiment includes an exterior sheet (not shown) arranged on the non-skin facing surface side of the leak-proof sheet 3.
- an exterior sheet is arranged on the non-skin facing surface side of the absorbent main body 10.
- the exterior sheet is a member that forms the outer surface of the diaper 1 that can be visually recognized from the outside when the diaper 1 is worn.
- the exterior sheet is arranged on the non-skin facing surface of the absorbent main body 10 extending from the ventral side A to the dorsal side B via the inseam C.
- the exterior sheet forms the outer shape of the diaper 1 in the expanded and extended state
- the peripheral edge of the exterior sheet forms the contour lines of the ventral side portion A, the inseam portion C, and the dorsal side portion B, respectively.
- the central side of the vertical direction X that is, the portion on the inseam C side is constricted in the horizontal direction Y
- the end portion of the vertical direction X in each of the ventral side portion A and the dorsal side portion B.
- the side projects laterally Y outward from the portion on the crotch C side.
- the diaper 1 of the present embodiment has a wide portion in each of the ventral side portion A and the dorsal side portion B, and has a constricted portion narrower than the wide portion between these wide portions in the vertical direction X. is doing.
- the exterior sheet extends outward in the lateral direction Y from both side edges along the vertical direction X of the absorber 4, and forms a side flap portion SF together with the cuff forming sheet 16 constituting the leakage-proof cuff 6. ..
- the side flap portion SF is a portion made of a member extending outward in the horizontal direction Y from both side edges of the absorber 4 along the vertical direction X.
- the side flap portion SF includes a cuff forming sheet 16, a surface sheet 2, a leak-proof sheet 3, and an exterior sheet extending outward in the lateral direction Y from both side edges of the absorber 4.
- These sheets extend from the ventral side A to the dorsal side B via the inseam C, and extend laterally Y outward from each of both side edges of the absorber 4. These sheets are joined to each other by known joining means such as an adhesive, a heat seal, and an ultrasonic seal at the extending portions from both side edges of the absorber 4.
- the elastic members 31 for forming leg gathers are provided on both side portions of the diaper 1 along the vertical direction X, specifically, each of the pair of side flap portions SF and SF. Is arranged in an extended state so as to extend in the vertical direction X through the lower crotch C.
- the elastic member 31 for forming leg gathers is also referred to as a leg elastic member. Due to the contraction of the leg elastic member 31, leg gathers are formed on the left and right portions arranged around the wearer's legs, that is, on both sides of the diaper 1 in the vertical direction X.
- the leg elastic member 31 is fixed between the cuff forming sheet 16 and the leak-proof sheet 3 in the side flap portion SF in an extended state along the vertical direction X.
- the diaper 1 of the present embodiment is the peripheral edge of the absorber 4 on the end side of the dorsal side portion B in the vertical direction X, specifically, in the region between the front and rear ends of the wide portion of the dorsal side portion B in the vertical direction X. It has a waist flap portion WF extending outward from the vertical direction X or outward in the horizontal direction Y.
- the waist flap portion WF is a portion formed of a member extending outward in the vertical direction X or outward in the horizontal direction Y from the peripheral edge of the absorber 4 on the end side of the dorsal side portion B in the vertical direction X. ..
- the waist flap portion WF is composed of a cuff forming sheet 16, a surface sheet 2, a leakage-proof sheet 3, and an exterior sheet extending outward from the peripheral edge of the absorber 4. These sheets are joined to each other by known joining means such as an adhesive, a heat seal, and an ultrasonic seal at a portion extending from the peripheral edge of the absorber 4.
- the waist flap portion WF corresponds to the waist circumference of the wearer when the diaper 1 is worn.
- Both sides of the waist flap portion WF in the lateral direction Y are also front and rear ends of the side flap portion SF in the vertical direction X.
- the leak-proof cuff 6 of this embodiment is formed by folding one cuff-forming sheet 16 a plurality of times along a crease along the vertical direction X.
- the leak-proof cuff 6 is a folded portion where the cuff forming sheet 16 is folded back in a cross-sectional view along the lateral direction Y. It has two places. Of these two folded portions, the folded portion on the outer side of the lateral Y forms the free end of the leak-proof cuff 6, and the folded portion on the inner side of the lateral Y forms the inner end of the leak-proof cuff 6. ing.
- the leak-proof cuff 6 of the present embodiment has a band-shaped skin contact portion 63 on the free end side (see FIG. 2).
- the skin contact portion 63 has a skin contact surface 12 that comes into contact with the wearer's skin in the wearing state (see FIG. 2).
- the skin contact portion 63 is arranged between the skin side sheet 13 forming the skin contact surface 12, the non-skin side sheet 14 on which the skin side sheet 13 faces, and the skin side sheet 13 and the non-skin side sheet 14. It is provided with an elastic member 61 for forming a cuff.
- the non-skin side sheet 14 of the present embodiment is formed by folding one cuff forming sheet 16 continuous with the skin side sheet 13 along the vertical direction X.
- the leak-proof cuff 6 of the present embodiment has an upright sheet portion 65 located on the non-skin facing surface side of the skin contact portion 63 in the thickness direction Z of the diaper 1.
- the upright sheet portion 65 forms an upright portion of the leak-proof cuff, and stands up due to the contraction of the cuff forming elastic member 61 arranged on the skin contact portion 63.
- the upright sheet portion 65 is located between the skin contact portion 63 and the absorbent main body 10 in the thickness direction Z of the diaper 1.
- the upright sheet portion 65 faces the skin contact portion 63 in the thickness direction Z of the diaper 1 and extends laterally from the leak-proof cuff 6 to the side sheet portion 17 and the side sheet portion 17 and the absorbent main body 10.
- the cuff forming fixing portion 62 is a fixing portion forming the upright sheet portion 65, and is continuously formed over the entire length of the leakage-proof cuff 6 in the vertical direction X.
- the form of the "cuff forming and fixing portion 62 continuously formed over the entire length in the vertical direction X" includes a form in which the cuff forming and fixing portion 62 continuously extends in the vertical direction X, and also cuff forming and fixing.
- each small fixing portion a forming the cuff forming fixing portion 62 is tilted in both the vertical direction X and the horizontal direction Y, and the small fixing portions adjacent to each other in the vertical direction X are fixed.
- a part of the part a is arranged so as to overlap each other at the same position in the vertical direction X.
- the leak-proof cuff 6 of the present embodiment has a non-standing region F1 on both the ventral side A and the dorsal side B.
- the leakage-proof cuff 6 of the present embodiment has non-standing regions F1 on both sides of the standing region F2 in the vertical direction X.
- the leak-proof cuff 6 may have a non-standing region F1 on at least one of the ventral portion A and the dorsal portion B.
- the non-standing region F1 is a region in which the elastic member 61 for forming a cuff is not arranged in the vertical direction X, or a region in which the elastic member 61 for forming a cuff is arranged so as not to exhibit elastic elasticity.
- the elastic member 61 for forming a cuff is made so as not to exhibit elastic elasticity by being subjected to a treatment such as cutting or by not being joined to the sheet 16 for forming a cuff in an extended state. ing.
- the upright sheet portion 65 is fixed on the absorbent main body 10 via the fixing portion 67, and the skin contact portion 63 is fixed to the upright sheet portion via the other fixing portion 60.
- the fixing portion 60 for fixing the skin contact portion 63 and the upright seat portion 65 is referred to as a "fixing portion in the cuff" 60
- the fixing portion 67 for fixing the upright seat portion 65 and the absorbent main body 10 is referred to as a "main body”.
- side fixing portion also referred to as "side fixing portion” 67.
- the main body side sheet portion 18 in the upright sheet portion 65 is fixed on the surface sheet 2 in the absorbent main body 10 via the main body side fixing portion 67.
- the skin contact portion 63 of the non-standing region F1 In the skin contact portion 63 of the non-standing region F1, the skin side sheet 13 and the non-skin side sheet 14 are not joined. That is, in the non-standing region F1, the skin-side sheet 13 and the non-skin-side sheet 14 are not joined.
- the in-cuff fixing portion 60 is located at a portion other than both ends of the skin contact portion 63 in the lateral direction Y. That is, the skin contact portion 63 and the upright sheet portion 65 are not joined at both ends of the skin contact portion 63 in the lateral direction Y.
- the elastic member 61 for forming a cuff does not exhibit shrinkage, and the standing sheet portion 65 is fixed to the absorbent body 10 by the fixing portion 60 in the cuff, so that the standing sheet portion 65 does not stand. It is done like this.
- the non-standing region F1 in the ventral portion A or the dorsal portion B is a region arranged around the wearer's waist in the wearing state, the region and the wearer's skin are arranged according to the movement of the wearer. Friction is likely to occur between them. Excessive friction can cause skin irritation.
- the skin contact portion 63 in the non-standing region F1 of the present embodiment as shown in FIG. 3, the skin side sheet 13 and the non-skin side sheet 14 are non-bonded.
- the skin contact portion 63 and the upright sheet portion 65 are fixed via the fixing portion 60 in the cuff.
- the positions of the skin-side sheet 13 and the non-skin-side sheet 14 can be displaced in the lateral direction Y while maintaining the skin contact surface 12 well (). See Figure 4). That is, since the skin-side sheet 13 has room to move in the lateral direction Y, the skin contact portion 63 satisfactorily follows the movement of the wearer's skin, and friction is unlikely to occur. In particular, when the in-cuff fixing portion 60 is located at a portion other than both ends of the skin contact portion 63 in the lateral direction Y, the in-cuff fixing portion 60 is the starting point with the skin contact surface 12 in contact with the skin. The present inventors have found that the skin-side sheet 13 becomes easier to move.
- the in-cuff fixing portion 60 is located between the skin contact portion 63 and the upright sheet portion 65, the feel of the in-cuff fixing portion 60, which is a joint portion between the sheets, is not easily transmitted to the skin, so that a good touch can be obtained. In this way, in the diaper 1 of the present embodiment, excessive friction between the leak-proof cuff 6 and the skin can be effectively suppressed, and an excellent touch can be obtained.
- the in-cuff fixing portion 60 is a joint portion for joining the non-skin side sheet 14 of the skin contact portion 63 and the side sheet portion 17 of the upright seat portion 65.
- the fixing portion 60 in the cuff can be formed by a known joining means such as an adhesive, a heat seal, and an ultrasonic seal.
- the cuff forming fixing portion 62, the main body side fixing portion 67 and the side fixing portion 23 can also be formed by the above-mentioned known joining means.
- the length W2 (see FIG. 3) of the in-cuff fixing portion 60 in the lateral direction Y is the skin contact surface in the lateral direction Y. It is preferably 10% or more, more preferably 20% or more, preferably 50% or less, more preferably 40% or less, and preferably 10% or more with respect to the length W1 (see FIG. 3) of 12. It is 50% or less, more preferably 20% or more and 40% or less. From the same viewpoint as above, the length W1 (see FIG.
- the length W2 (see FIG. 3) of the in-cuff fixing portion 60 in the lateral direction Y is preferably 2 mm or more, more preferably 3 mm or more, and more preferably. Is 8 mm or less, more preferably 6 mm or less, preferably 2 mm or more and 8 mm or less, and more preferably 3 mm or more and 6 mm or less.
- the distance D1 between the in-cuff fixing portion 60 and the edge of the skin contact portion 63 in the lateral direction Y is preferably 10% or more, more preferably 20% or more, and preferably 50% or less, more preferably, with respect to the length W1 (see FIG. 3) of the skin contact surface 12 in the lateral direction Y. Is 40% or less, preferably 10% or more and 50% or less, and more preferably 20% or more and 40% or less. From the same viewpoint as above, the distance D1 (see FIG.
- 3) between the in-cuff fixing portion 60 and the edge of the skin contact portion 63 in the lateral direction Y is preferably 2 mm or more, more preferably 3 mm or more. Further, it is preferably 8 mm or less, more preferably 6 mm or less, preferably 2 mm or more and 8 mm or less, and more preferably 3 mm or more and 6 mm or less.
- the distance D1 between the fixed portion 60 in the cuff and both end edges of the skin contact portion 63 in the lateral direction Y may be the same or different.
- the distance between the in-cuff fixing portion 60 in the lateral direction Y and the end edge on the inward side of the same direction Y of the skin contact portion 63 is the distance between the in-cuff fixing portion 60 and the skin contact portion 63 in the lateral direction Y. Is different from the distance between the same direction and the outer edge of Y.
- the length of the non-standing region F1 in the vertical direction X is preferably 5% or more with respect to the total length of the leakage-proof cuff 6 in the vertical direction X. , More preferably 10% or more, preferably 30% or less, more preferably 20% or less, and preferably 5% or more and 30% or less, more preferably 10% or more and 20% or less.
- the length of the non-standing region F1 in the vertical direction X is the length of each non-standing region F1 in the vertical direction X.
- the length of the non-standing region F1 in the vertical direction X is preferably 40 mm or more, more preferably 50 mm or more, preferably 150 mm or less, more preferably 100 mm or less, and more preferably. It is 40 mm or more and 150 mm or less, more preferably 50 mm or more and 100 mm or less.
- the non-standing region F1 easily comes into contact with the wearer's skin in a portion where the thickness of the diaper 1 is larger than that of other portions.
- the leak-proof cuff 6 preferably has a non-standing region F1 at a position overlapping with the absorber 4. In this case, the entire non-standing region F1 does not have to overlap with the absorber 4, and may partially overlap with the absorber 4.
- the skin contact portion 63 and the upright sheet portion 65 are formed by folding one cuff forming sheet at a plurality of locations along the vertical direction.
- the skin contact portion 63 and the upright sheet portion 65 are connected via a folded portion of the cuff forming sheet 16 on the inner side in the lateral direction Y (FIG. 2).
- the leak-proof cuff 6 of the present embodiment has a folded-back portion in which the cuff forming sheet 16 is continuously folded outward in the lateral direction Y in a cross-sectional view along the lateral direction Y. ..
- the folded portion is a lateral Y inner end of the skin contact portion 63 and a lateral Y inner end of the upright sheet portion 65.
- the cuff forming sheet 16 is folded back so as to be continuous on the outer side in the lateral direction Y, and the structure of the leak-proof cuff forming the skin contact portion 63 is hereinafter referred to as "outer folding structure". Also called.
- the skin-facing surface of the absorbent body 10 of the present embodiment is formed of a sheet provided with a cushion layer CS. More specifically, the surface sheet 2 is provided with a cushion layer CS on the side facing the skin.
- the cushion layer CS of the present embodiment is composed of an uneven region composed of a plurality of concave portions and convex portions formed on one surface (skin facing surface) of the sheet.
- the form of the sheet having the uneven region is a composite sheet in which the laminated first sheet and the second sheet are joined to each other at a plurality of joints, and the first sheet is a second sheet at a portion other than the joint. Examples thereof include those protruding in the direction away from the surface to form a convex portion.
- Each of the first and second sheets is preferably made of a fiber sheet, and the fiber sheet is preferably a non-woven fabric, a woven fabric, a knitted fabric, a paper machine, or a laminate thereof.
- a composite sheet can be manufactured by the same method as that described in, for example, Japanese Patent Application Laid-Open No. 2015-11234.
- the fixing portion 60 in the cuff is positioned so as to overlap the cushion layer CS on the skin-facing surface of the absorbent body 10.
- the in-cuff fixing portion 60 may be positioned so as to partially overlap the cushion layer CS in a plan view, but the entire area of the in-cuff fixing portion 60 may overlap with the cushion layer CS in a plan view. It is more preferable to be located in.
- the diaper 1 of the present embodiment has a dorsal side expansion / contraction region 50 in which the elastic member 51 extending in the lateral direction Y is arranged in the dorsal side portion B in the extended state.
- a dorsal stretchable region 50 a plurality of waist elastic members 51 fixed in a laterally extended state are arranged between the sheets constituting the waist flap portion WF in the dorsal side portion B, and the elastic members are arranged.
- waist elastic member 51 of the present embodiment is fixed between the leak-proof sheet 3 and the surface sheet 2.
- the non-standing region F1 and the dorsal telescopic region 50 overlap each other in a plan view.
- the non-standing region F1 and the dorsal telescopic region 50 may partially overlap, but it is more preferable that the entire non-standing region F1 overlaps with the dorsal telescopic region 50 in a plan view.
- another seat member may be arranged on the side facing the skin.
- the skin-facing surface of the non-standing region F1 may be partially covered with another sheet member.
- the leakage of excrement such as urine that has moved along the skin-facing surface of the absorbent body 10 can be further suppressed.
- the skin facing surface of the vertical X outer side end portion in the non-standing region F1 is covered with a separate sheet member.
- the region in which the non-standing region F1 is covered with the separate sheet is preferable from the outer edge in the vertical direction X toward the inseam C in the vertical direction X.
- the separate seat member may be a seat member other than the seat member constituting the leakage-proof cuff 6 or a part thereof. Examples of the other seat member include an auxiliary seat and the like, and examples of the other seat member include a folded portion in which the exterior sheet is folded back toward the skin facing surface at the edge of the diaper 1 in the vertical direction X.
- FIG. 5 shows an enlarged cross-sectional view of the diaper 1 of the present embodiment along the lateral direction Y of the leakage-proof cuff 6 in the vicinity of the edge e1 in the vertical direction X (see FIG. 1).
- FIG. 5 is an enlarged cross-sectional view of the leak-proof cuff 6 before wearing.
- the skin-side sheet 13 and the non-skin-side sheet 14 are temporarily fixed at the edge e1 in the vertical direction X.
- the skin-side sheet 13 and the non-skin-side sheet 14 are temporarily fixed to each other by pressing the two sheets 13 and 14, and the non-standing region F1 is the movement of the wearer's skin in the wearing state.
- the leakage-proof cuff is provided when worn. It is preferable in that the orthostatic property of 6 can be further improved.
- the cuff internal fixing portion 60 and the cuff forming fixing portion 62 are arranged so as to overlap each other in the lateral direction Y in the cross-sectional view along the lateral direction. That is, in a plan view, the cuff internal fixing portion 60 and the cuff forming fixing portion 62 are arranged so as to overlap each other. With such a configuration, it is possible to further achieve both the followability of the skin contact portion 63 to the skin and the uprightness of the leak-proof cuff 6. In a plan view, the cuff internal fixing portion 60 and the cuff forming fixing portion 62 may partially overlap each other, or the entire area thereof may overlap.
- the cuff inner fixing portion 60, the cuff forming fixing portion 62, and the main body side fixing portion 67 are arranged so as to overlap each other in the lateral direction Y in the cross-sectional view along the lateral direction. (See FIG. 3). That is, in a plan view, the cuff internal fixing portion 60, the cuff forming fixing portion 62, and the main body side fixing portion 67 are arranged so as to overlap each other. With such a configuration, the skin-side sheet 13 follows the wearer's skin, and the gap between the skin-side sheet 13 and the non-skin-side sheet 14 of the skin contact portion 63 is more likely to occur, and is temporarily fixed at the time of wearing. The part can be peeled off more reliably. In a plan view, the cuff internal fixing portion 60, the cuff forming fixing portion 62, and the main body side fixing portion 67 may partially overlap each other, or the entire area thereof may overlap.
- FIGS. 6 and 7 show other embodiments of the leak-proof cuff according to the present invention.
- components different from the embodiments shown in FIGS. 1 to 5 will be mainly described, and similar components will be designated by the same reference numerals and description thereof will be omitted.
- the description of the above-described embodiment is appropriately applied to the components not particularly described.
- the leak-proof cuff 6 is a cuff-forming sheet 16 folded into an outer folding structure, but the structure of the leak-proof cuff is not limited to such a structure.
- the leakage-proof cuff 6a has a skin contact portion 63 and a two-tiered upright sheet portion 65a.
- the upright sheet portion 65a has a skin-side upright sheet portion 66 adjacent to the skin contact portion 63 and a non-skin-side upright sheet portion 69 adjacent to the absorbent main body 10 in the thickness direction Z, and these skins.
- the side standing sheet portion 66 and the non-skin side standing sheet portion 69 overlap each other to form a two-tiered structure.
- the skin contact portion 63, the skin side upright sheet portion 66, and the non-skin side upright sheet portion 69 are formed by folding one cuff forming sheet 16.
- the skin-side upright sheet portion 66 faces the skin contact portion 63 in the thickness direction Z of the diaper 1, and the skin contact portion is near the center of the skin contact portion 63 in the lateral direction Y. It is connected to 63.
- the cross sections of the skin contact portion 63 and the skin side upright sheet portion 66 of the upright sheet portion 65a have a T-shaped structure [see FIGS. 6 (a) and 6 (b)].
- the non-skin side upright sheet portion 69 of the present embodiment is connected to the skin side upright sheet portion 66 at the lateral Y inner end portion of the leak-proof cuff 6a, and faces laterally outward from the inner end portion.
- the side seat portion 17 and the main body side seat portion 18 face each other in the thickness direction Z of the diaper 1.
- the connecting portion between the skin-side standing sheet portion 66 and the non-skin-side standing sheet portion 69 in the present embodiment has a cuff-forming fixing portion 62a formed of an adhesive or the like between the sheets forming the connecting portion. ..
- the cuff forming fixing portion 62a is arranged between the sheets 16 forming the lateral Y inner end portion of the two-tiered upright sheet portion 65a. More specifically, the cuff forming fixing portion 62a is located between the side seat portion 17 and the main body side seat portion 18 in the non-skin side upright seat portion 69, and the side seat portion 17 and the main body side in the skin side upright seat portion 66. Each of the seat portions 18 is arranged between consecutive seats.
- the cuff-forming fixing portion 62a allows the two-tiered upright sheet portion 65a to stand up toward the wearer's skin while maintaining the above-mentioned T-shaped structure.
- the leak-proof cuff 6b has a skin contact portion 63 and a two-tiered upright sheet portion 65b.
- the upright sheet portion 65b has a skin-side upright sheet portion 66b and a non-skin-side upright sheet portion 69b in the thickness direction Z, and these sheet portions 66b and 69b are overlapped in two stages.
- the skin contact portion 63, the skin side upright sheet portion 66b, and the non-skin side upright sheet portion 69b are formed by folding one cuff forming sheet 16.
- the sheets that form the skin-side upright sheet portion 66b and face the thickness direction Z, and the sheets that form the non-skin-side upright sheet portion 69b and face the thickness direction Z are joined by the cuff forming fixing portion 62. ing.
- the positions of the lateral Y inner ends of the skin contact portion 63 and the standing sheet portion 65b of the present embodiment are the same, and the lateral Y inner ends of the respective portions 63 and 65b are leakage-proof. It forms the lateral Y inner end of the cuff 6b.
- the skin side upright sheet portion 66b faces the skin contact portion 63b in the thickness direction Z of the diaper 1, and the skin interview is made at the lateral Y outer end portion of the skin contact portion 63. It is connected to the unit 63.
- the non-skin side upright sheet portion 69b of the present embodiment is connected to the skin side upright sheet portion 66b at the lateral Y inner end portion of the leak-proof cuff 6b, and faces laterally outward from the inner end portion. It is formed of a continuous side seat portion 17 and a main body side seat portion 18. That is, the leakage-proof cuff 6b of the present embodiment has a zigzag structure in a cross section in the lateral direction Y [see FIGS. 7 (a) and 7 (b)].
- the space between the skin-side upright sheet portion 66b and the non-skin-side upright sheet portion 69b forming a part of the zigzag structure is fixed by the fixing portion 68.
- the in-cuff fixing portion 60, the cuff forming fixing portion 62, the fixing portion 68, and the main body side fixing portion 67 overlap in the lateral direction Y.
- the surface sheet 2 the leak-proof sheet 3 and the absorber 4 those conventionally used for the absorbent article can be used without particular limitation.
- the surface sheet 2 for example, a liquid-permeable non-woven fabric, a perforated film, or the like can be used.
- the leak-proof sheet 3 a liquid-impermeable resin film, a laminate of the resin film and a non-woven fabric, or the like can be used.
- the absorbent body 4 as the absorbent core 41, an aggregate of hydrophilic fibers such as wood pulp and a hydrophilized synthetic fiber, or an aggregate in which a water-absorbing polymer is retained can be used.
- the core wrap sheet 42 the same one as the surface sheet 2 can be used.
- the cuff forming sheet 16 a water-repellent nonwoven fabric can be used.
- the exterior sheet and the cuff forming sheet 16 for example, non-woven fabrics produced by various manufacturing methods can be used. Can be used.
- the exterior sheet may be composed of one sheet, or may be composed of a laminated body of a plurality of sheets instead.
- Elastic members such as the cuff forming elastic member 61, the waist elastic member 51, and the leg elastic member 31 arranged on the skin contact portion 63 of the leak-proof cuff 6 are various known elastic members usually used for this kind of absorbent article.
- the material can be used without particular limitation.
- the elastic material examples include synthetic rubber such as styrene-butadiene, butadiene, isoprene, and neoprene, natural rubber, EVA, elastic polyolefin, and polyurethane.
- synthetic rubber such as styrene-butadiene, butadiene, isoprene, and neoprene, natural rubber, EVA, elastic polyolefin, and polyurethane.
- a thread-like (thread rubber, etc.) or string-like (flat rubber, etc.) having a rectangular, square, circular, or polygonal cross section, or a multifilament type thread-like member is preferably used. can.
- the leak-proof cuff 6 is formed by folding one cuff-forming sheet 16, but it may be formed by combining a plurality of cuff-forming sheets 16.
- the skin contact portion 63, the skin side upright sheet portion 66, and the non-skin side upright sheet portion 69 are formed of separate sheets, and the skin side upright sheet portion 66 and the non-skin side upright sheet portion 66 are formed.
- An example is one in which the sheet portion 69 is fixed with an adhesive or the like.
- the cuff internal fixing portion 60 and the cuff forming fixing portion 62 do not have to overlap in a plan view. Further, in the non-standing region F1, the cuff forming fixing portion 62 and the main body side fixing portion 67 do not have to overlap in a plan view.
- the above-mentioned absorbent article was a so-called deployable disposable diaper having a fastening tape, but the absorbent article of the present invention includes body fluids (urine, loose stool, menstrual blood, sweat, etc.) discharged from the human body. ) Is widely included in the articles used for absorption. For example, pants-type disposable diapers, incontinence pads, sanitary napkins, sanitary shorts and the like are included.
- absorbent articles are further disclosed with respect to the above-described embodiment of the present invention.
- It has a vertical direction corresponding to the front-back direction of the wearer and a lateral direction orthogonal to the vertical direction, and the inseam arranged in the crotch part of the wearer, and the ventral and dorsal sides extending in the front-back direction of the crotch part.
- An absorbent article comprising a portion, an absorbent body including a liquid-retaining absorber, and a pair of leak-proof cuffs arranged along both sides of the absorbent body along the longitudinal direction.
- the leak-proof cuff has a band-shaped skin contact portion having a skin contact surface that comes into contact with the wearer's skin, and an upright sheet portion located between the skin contact portion and the absorbent body.
- the inseam has an upright region in which the upright seat portion stands up toward the wearer's skin side due to the contraction of the elastic member arranged on the skin contact portion.
- the upright sheet portion is fixed on the absorbent body on at least one of the ventral side portion and the dorsal side portion, and the skin contact portion is fixed to the upright seat portion via the fixing portion in the cuff.
- the leak-proof cuff is formed by folding the cuff forming sheet so as to be continuous with the outer side in the lateral direction in a cross-sectional view along the lateral direction, and the folded portion thereof is formed by folding the folded portion of the skin contact portion.
- the absorbent article according to ⁇ 2> which is the lateral inward end and the lateral inward end of the upright sheet portion.
- the skin-facing surface of the absorbent body is formed of a sheet having a cushion layer.
- the absorbent article has a dorsal stretchable region in which elastic members extending in the lateral direction are arranged in an extended state in the dorsal portion.
- ⁇ 6> The absorbent article according to any one of ⁇ 1> to ⁇ 5>, wherein the skin-facing surface of the non-standing region is partially covered with another sheet member.
- the skin-side sheet and the non-skin-side sheet are temporarily fixed at the outer edge in the vertical direction, and the skin-side sheet and the non-skin-side sheet can be peeled off in a worn state.
- the absorbent article according to any one of ⁇ 1> to ⁇ 6>.
- the upright sheet portion faces the skin contact portion in the thickness direction of the absorbent article, and extends outward from the leak-proof cuff in the lateral direction, and the side sheet portion and the absorbent main body.
- the absorbent article has a seat on the main body side located between The side seat portion and the main body side seat portion face each other in the thickness direction of the absorbent article, and are joined via a cuff forming fixing portion formed between the two seat portions.
- the absorbent article according to any one of ⁇ 1> to ⁇ 7>, wherein in the upright region, the in-cuff fixing portion and the cuff forming fixing portion are arranged so as to overlap each other in a plan view. ⁇ 9>
- the upright sheet portion is fixed on the absorbent main body via a main body side fixing portion.
- the absorbent article according to ⁇ 8> wherein the fixing portion in the cuff, the fixing portion for forming the cuff, and the fixing portion on the main body side are arranged so as to overlap each other in a plan view.
- the cuff forming fixing portion is composed of a plurality of small fixing portions, the small fixing portions are partially overlapped with each other, and the small fixing portions are intermittently arranged so as to be continuous with the entire length of the leakage-proof cuff in the vertical direction.
- the absorbent article according to any one of ⁇ 8> to ⁇ 10>.
- the length W2 of the fixed portion in the cuff in the lateral direction is 10% or more, preferably 20% or more, preferably 50% or less, preferably 50% or less, preferably 10% or more, preferably 20% or more, preferably 50% or less, preferably 50% or less, preferably 20% or more, preferably 20% or more, preferably 50% or less, preferably 20% or more, preferably 20% or more, preferably 50% or less, preferably 20% or more, preferably 20% or more, preferably 50% or less, preferably 50% or less, preferably 20% or more, preferably 20% or more, preferably 50% or less, preferably 50% or less, preferably 20% or more, preferably 20% or more, preferably 50% or less, preferably 20% or more, preferably 20% or more, preferably 50% or less, preferably 20% or more, preferably 20% or more, and preferably 50% or less, the length W2 of the fixed portion in the cuff in the lateral direction with respect to the length W1 of the skin contact surface in the lateral direction.
- the absorbent article according to any one of ⁇ 1> to ⁇ 11> which is 40% or less, and is 10% or more and 50% or less, preferably 20% or more and 40% or less.
- the length W1 of the skin contact surface in the lateral direction is 6 mm or more, preferably 12 mm or more, 25 mm or less, preferably 18 mm or less, and 6 mm or more and 25 mm or less, preferably 12 mm or more and 18 mm or less.
- the distance D1 between the fixed portion in the cuff and the edge of the skin contact portion in the lateral direction is 10% or more with respect to the length W1 of the skin contact surface in the lateral direction.
- the above ⁇ 1> to ⁇ 13> preferably 20% or more, preferably 50% or less, preferably 40% or less, and 10% or more and 50% or less, preferably 20% or more and 40% or less.
- the distance D1 between the fixed portion in the cuff and the edge of the skin contact portion in the lateral direction is 2 mm or more, preferably 3 mm or more, and 8 mm or less, more preferably 6 mm or less, and 2 mm or more.
- the absorbent article according to any one of ⁇ 1> to ⁇ 14> which is 8 mm or less, preferably 3 mm or more and 6 mm or less.
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Abstract
Description
特許文献1には、防漏カフとして、積層されたサイドシート間に伸縮性部材が接着されることよって形成されたサイドギャザーを有する吸収性物品が開示されている。斯かるサイドギャザーには、前記伸縮性部材よりも前後方向外側及び伸縮性部材どうし間に、積層されたサイドシートどうしが接着されていない第1及び第2非接着領域が設けられており、これら非接着領域の幅方向の長さが互いに異なっている。
前記防漏カフは、着用者の肌と当接する肌当接面を有する帯状の肌面接部、及び該肌面接部と前記吸収性本体との間に位置する起立シート部とを有していることが好ましい。
前記防漏カフは、前記股下部に、前記肌面接部に配された弾性部材の収縮により前記起立シート部が着用者の肌側に向かって起立する起立領域を有していることが好ましい。
前記防漏カフは、前記腹側部及び前記背側部の少なくとも一方に、前記起立シート部が前記吸収性本体上に固定され、前記肌面接部がカフ内固定部を介して前記起立シート部に固定されている非起立領域を有していることが好ましい。
前記非起立領域における前記肌面接部においては、前記肌当接面を形成する肌側シートと該肌側シートが相対向する非肌側シートとが非接合であり、且つ前記カフ内固定部が、前記横方向における前記肌面接部の両端以外の部位に位置していることが好ましい。
図1に示すおむつ1は、その展開且つ伸長状態において、着用者の前後方向に対応し、着用者の腹側から股間部を介して背側に延びる縦方向Xと、該縦方向Xに直交する横方向Yとを有している。おむつ1は、その着用時に着用者の腹側に配される腹側部A及び背側に配される背側部Bと、腹側部A及び背側部Bの間に位置する股下部Cと有している。各領域A,B,Cは、おむつ1の縦方向Xの全長を三等分した領域であり、着用者の前後方向に連続して延びている。股下部Cは、おむつ1の着用時に着用者の***部に対向配置される***部対向部(図示せず)を有している。
表面シート2及び防漏シート3は、それぞれ、吸収体4よりも大きな寸法を有し、吸収体4の外周縁から外方に延出している。表面シート2及び防漏シート3は、吸収体4の縦方向Xに沿う両側縁から横方向Yの外方に延出している。本実施形態における表面シート2及び防漏シート3の各長手方向両端縁は、おむつ1の長手方向両端縁と略一致している。
吸収体4は、吸収性能を有する吸収性コア40が液透過性のコアラップシート(図示せず)に被覆されて形成されている。本実施形態の吸収性コア40は、一方向に長い略長方形の四隅が斜めに切り欠かれた形状を有し、股下部Cにおいて横方向Yに括れた部位を有している。
また、「肌対向面」は、おむつ又はその構成部材(例えば吸収体)に着目したときに、おむつの着用時に着用者の肌に向けられる面であり、「非肌対向面」は、おむつの着用時に着用者の肌とは反対側に向けられる面である。つまり、肌対向面は、着用者の肌に相対的に近い側の面であり、非肌対向面は、着用者の肌から相対的に遠い側の面である。「着用時」及び「着用状態」は、おむつの適正な着用位置が維持されて着用された状態を指す。
防漏カフ6は、図2に示すように、吸収性本体10上に固定されており、起立領域F2において吸収性本体10と固定される固定部23を基端として着用者の肌側に自由端をなすように起立する。
図2に示す防漏カフ6は、おむつ1の展開且つ伸長状態のものであるので起立した状態ではないが、後述するカフ形成用弾性部材61の伸長状態を解除して収縮させると前記固定部23を基端として起立した状態となる。本実施形態の防漏カフ6が起立する基端は、吸収体4の横方向外方側に位置している。以下、この基端を形成する固定部23を、「サイド固定部」23ともいう。
本実施形態のおむつ1は、吸収性本体10の非肌対向面側に外装シートが配されている。外装シートは、おむつ1の着用状態において、外部から視認可能なおむつ1の外面を形成する部材である。外装シートは、吸収性本体10の非肌対向面に、腹側部Aから股下部Cを介して背側部Bに延在して配されている。また、外装シートは、展開且つ伸長状態のおむつ1の外形を形作っており、外装シートの周縁は、腹側部A、股下部C及び背側部Bのそれぞれの輪郭線を形成している。
本実施形態のおむつ1の輪郭は、縦方向Xの中央側、即ち股下部C側の部位が横方向Yに括れており、腹側部A及び背側部Bそれぞれにおける縦方向Xの端部側が、該股下部C側の部位よりも横方向Y外方に張り出している。換言すると、本実施形態のおむつ1は、腹側部A及び背側部Bそれぞれに幅広部を有し、縦方向Xのこれら両幅広部間に該幅広部よりも幅が狭い括れ部を有している。
サイドフラップ部SFは、吸収体4の縦方向Xに沿う両側縁から横方向Yの外方に延出する部材からなる部分である。本実施形態においてサイドフラップ部SFは、吸収体4の前記両側縁から横方向Yの外方に延出したカフ形成用シート16、表面シート2、防漏シート3、及び外装シートからなる。これらシートは、腹側部Aから股下部Cを介して背側部Bに延在しており、吸収体4の両側縁それぞれから横方向Y外方に延出している。これらシートは、吸収体4の前記両側縁からの延出部において、接着剤、ヒートシール、超音波シール等の公知の接合手段によって互いに接合されている。
本実施形態の非肌側シート14は、肌側シート13と連続する一枚のカフ形成用シート16が、縦方向Xに沿って折り畳まれて形成されている。
起立シート部65は、おむつ1の厚み方向Zにおいて肌面接部63と対向し、防漏カフ6から横方向Y外方に延出するサイドシート部17及び該サイドシート部17と吸収性本体10との間に位置する本体側シート部18を有している。本実施形態のサイドシート部17と本体側シート部18とは、おむつ1の厚み方向Zにおいて相対向しており、これら両シート部17,18間に形成されたカフ形成固定部62を介して接合されている。
カフ形成固定部62は、起立シート部65を形成する固定部であり、縦方向Xにおける防漏カフ6の全長に連続して形成されている。なお、「縦方向Xにおける全長に連続して形成されているカフ形成固定部62」の形態には、カフ形成固定部62が縦方向Xに連続して延びる形態が含まれる他、カフ形成固定部62が複数の小固定部aからなり、小固定部aどうしが部分的に重なり、且つ該小固定部aが防漏カフ6の縦方向X全長に連なるようにして間欠配置されている形態が含まれる(図8参照)。例えば、図8に示すカフ形成固定部62は、該カフ形成固定部62を形成する各小固定部aが縦方向X及び横方向Y双方に傾いており、縦方向Xに隣り合った小固定部aの一部どうしが、縦方向Xの同じ位置に重なって配置されている。
非起立領域F1では、図3に示すように、起立シート部65が吸収性本体10上に固定部67を介して固定されており、肌面接部63が他の固定部60を介して起立シート部65に固定されている。以下、肌面接部63と起立シート部65とを固定する固定部60を、「カフ内固定部」60といい、起立シート部65と吸収性本体10とを固定する固定部67を、「本体側固定部」67ともいう。
本実施形態の非起立領域F1においては、起立シート部65における本体側シート部18が、本体側固定部67を介して吸収性本体10における表面シート2上に固定されている。
非起立領域F1においてカフ内固定部60は、横方向Yにおける肌面接部63の両端以外の部位に位置している。即ち、肌面接部63と起立シート部65とは、横方向Yにおける該肌面接部63の両端において接合されていない。
非起立領域F1では、カフ形成用弾性部材61の収縮性が発現せず、且つ起立シート部65がカフ内固定部60で吸収性本体10に固定されているので、起立シート部65が起立しないようになされている。
本実施形態の非起立領域F1における肌面接部63では、図3に示すように、肌側シート13と非肌側シート14とが非接合である。一方、肌面接部63と起立シート部65とはカフ内固定部60を介して固定されている。斯かる構成により、非起立領域F1において、肌当接面12を良好に維持しながら、肌側シート13と非肌側シート14との位置が横方向Yにずれる余地を生じさせることができる(図4参照)。即ち、肌側シート13が横方向Yに動く余地があるので、肌面接部63が着用者の肌の動きに良好に追従して、摩擦が生じ難い。特にカフ内固定部60が横方向Yにおける肌面接部63の両端以外の部位に位置している場合、肌当接面12を肌に当接させた状態で、該カフ内固定部60を起点に肌側シート13がより動き易くなることを、本発明者らは見出した。しかも、カフ内固定部60が肌面接部63及び起立シート部65間にあり、シートどうしの接合部分である該カフ内固定部60の感触が肌に伝わり難いので、良好な肌触りが得られる。このようにして、本実施形態のおむつ1では、防漏カフ6と肌との過剰な摩擦が効果的に抑制されるとともに、優れた肌触りを得ることができる。
カフ形成固定部62、本体側固定部67及びサイド固定部23も、前述の公知の接合手段によって形成することができる。
上記と同様の観点から、横方向Yにおける肌当接面12の長さW1(図3参照)は、好ましくは6mm以上、より好ましくは12mm以上であり、また好ましくは25mm以下、より好ましくは18mm以下であり、また好ましくは6mm以上25mm以下、より好ましくは12mm以上18mm以下である。
肌面接部63の保形性をより向上させる観点から、横方向Yにおけるカフ内固定部60の長さW2(図3参照)は、好ましくは2mm以上、より好ましくは3mm以上であり、また好ましくは8mm以下、より好ましくは6mm以下であり、また好ましくは2mm以上8mm以下、より好ましくは3mm以上6mm以下である。
上記と同様の観点から、横方向Yにおけるカフ内固定部60と肌面接部63の端縁との間の距離D1(図3参照)は、好ましくは2mm以上、より好ましくは3mm以上であり、また好ましくは8mm以下、より好ましくは6mm以下であり、また好ましくは2mm以上8mm以下、より好ましくは3mm以上6mm以下である。
上記と同様の観点から、縦方向Xにおける非起立領域F1の長さは、好ましくは40mm以上、より好ましくは50mm以上であり、また好ましくは150mm以下、より好ましくは100mm以下であり、また好ましくは40mm以上150mm以下、より好ましくは50mm以上100mm以下である。
本実施形態のクッション層CSは、シートの一方の面(肌対向面)に形成された複数の凹部及び凸部からなる凹凸領域で構成されている。凹凸領域を有するシートの形態としては、積層された第1シート及び第2シートが複数の接合部において互いに接合されている複合シートであって、第1シートが接合部以外の部位において第2シートから離れる方向に突出して凸部を形成しているものが挙げられる。第1及び第2シートそれぞれは繊維シートからなることが好ましく、該繊維シートは、不織布、織布、編物、抄紙又はこれらの積層体等であることが好ましい。このような複合シートは、例えば特開2015-112343号公報等に記載の方法と同様の方法により製造することができる。
非起立領域F1の肌触りとフィット性とをより両立させる観点から、平面視において非起立領域F1と背側伸縮領域50とが重なっていることが好ましい。この場合、非起立領域F1と背側伸縮領域50とは部分的に重なっていればよいが、平面視において非起立領域F1全域が背側伸縮領域50と重なっていることがより好ましい。
斯かる効果をより向上させる観点から、非起立領域F1における縦方向X外方側端部の肌対向面が別体のシート部材で被覆されていることが好ましい。
***物の漏れをより抑制する観点から、非起立領域F1が前記別体のシートで被覆される領域は、縦方向X外方側の端縁から縦方向Xの股下部Cに向かって、好ましくは50mm以上、より好ましくは60mm以上の領域であり、また好ましくは160mm以下、より好ましくは110mm以下の領域であり、また好ましくは50mm以上160mm以下の領域、より好ましくは60mm以上110mm以下の領域である。
別体のシート部材は、防漏カフ6を構成するシート部材以外の他のシート部材やその一部であってもよい。他のシート部材としては補助シート等が挙げられ、他のシート部材の一部としては、外装シートをおむつ1の縦方向Xの端縁で肌対向面側に折り返した折り返し部等が挙げられる。
本実施形態の非起立領域F1は、図5に示すように、縦方向Xの端縁e1において、肌側シート13及び非肌側シート14間が仮固定されている。斯かる端縁において、肌側シート13及び非肌側シート14は、これら両シート13,14を圧接することにより互いに仮固定されており、着用状態において非起立領域F1が着用者の肌の動きに追従したときに剥離される程度に弱く固定されている。
このように、非起立領域F1の縦方向Xの端縁e1において、仮固定された肌側シート13と非肌側シート14とが着用状態において剥離可能になされていると、着用時に防漏カフ6の起立性をより向上させることができる点で好ましい。
また、本実施形態の非起立領域F1では、前記横方向に沿う断面視において横方向Yにカフ内固定部60と、カフ形成固定部62とともに、本体側固定部67も重なって配されている(図3参照)。即ち、平面視においてカフ内固定部60とカフ形成固定部62と本体側固定部67とは重なって配されている。斯かる構成により、肌側シート13が着用者の肌に追従して、肌面接部63の肌側シート13と非肌側シート14との間に、よりズレが生じ易くなり、着用時に仮固定部をより確実に剥離することができる。平面視においてカフ内固定部60とカフ形成固定部62と本体側固定部67とは、部分的に重なっていてもよく、その全域が重なっていてもよい。
図6(a)及び(b)に示す実施形態において防漏カフ6aは、肌面接部63と、二段重ねの起立シート部65aとを有している。この起立シート部65aは、厚み方向Zにおいて、肌面接部63と隣接する肌側起立シート部66と、吸収性本体10と隣接する非肌側起立シート部69とを有しており、これら肌側起立シート部66と非肌側起立シート部69とが重なって二段重ねとなっている。
肌面接部63、肌側起立シート部66及び非肌側起立シート部69は、一枚のカフ形成用シート16が折り畳まれることによって形成されている。
本実施形態の非肌側起立シート部69は、防漏カフ6aの横方向Y内方端部において肌側起立シート部66と連結しており、該内方端部から横方向外方に向かって連続する2枚のシート17,18によって形成されている。これら2枚のシートは、防漏カフ6から横方向Y外方に延出するサイドシート部17及び該サイドシート部17と吸収性本体10との間に位置する本体側シート部18である。これらサイドシート部17と本体側シート部18とは、おむつ1の厚み方向Zにおいて相対向している。
肌面接部63、肌側起立シート部66b及び非肌側起立シート部69bは、一枚のカフ形成用シート16が折り畳まれることによって形成されている。肌側起立シート部66bを形成し且つ厚み方向Zに対向するシート間、及び非肌側起立シート部69bを形成し且つ厚み方向Zに対向するシート間それぞれは、カフ形成固定部62によって接合されている。
本実施形態の起立シート部65bにおいて肌側起立シート部66bは、おむつ1の厚み方向Zにおいて肌面接部63bと対向しており、肌面接部63の横方向Y外方端部で該肌面接部63と連結している。本実施形態の非肌側起立シート部69bは、防漏カフ6bの横方向Y内方端部において肌側起立シート部66bと連結しており、該内方端部から横方向外方に向かって連続するサイドシート部17及び本体側シート部18で形成されている。即ち、本実施形態の防漏カフ6bは、横方向Yにおける断面がつづら折り構造となっている〔図7(a)及び(b)参照〕。
本実施形態の非起立領域F1では、前記つづら折り構造の一部をなす肌側起立シート部66b及び非肌側起立シート部69b間が固定部68によって固定されている。非起立領域F1では、カフ内固定部60、カフ形成固定部62、前記固定部68、及び本体側固定部67が横方向Yにおいて重なっている。
表面シート2としては例えば、液透過性の不織布及び開孔フィルム等を用いることができる。
防漏シート3としては、液難透過性の樹脂フィルムや、樹脂フィルムと不織布等とのラミネート等を用いることができる。
吸収体4は、吸収性コア41として、木材パルプ、親水化処理された合成繊維等の親水性繊維の集合体や、該集合体に吸水性ポリマーを保持させたものを用いることができる。また、コアラップシート42としては、表面シート2と同様のものを用いることができる。また、カフ形成用シート16としては、撥水性の不織布を用いることができる。
防漏カフ6の肌面接部63に配されるカフ形成用弾性部材61や、ウエスト弾性部材51、レッグ弾性部材31等の弾性部材は、この種の吸収性物品に通常用いられる各種公知の弾性材料を特に制限なく用いることができる。弾性材料としては、例えば、スチレン-ブタジエン、ブタジエン、イソプレン、ネオプレン等の合成ゴム、天然ゴム、EVA、伸縮性ポリオレフィン、ポリウレタン等が挙げられる。弾性部材の形態としては、断面が矩形、正方形、円形、多角形状等の糸状(糸ゴム等)若しくは紐状(平ゴム等)のもの、又はマルチフィラメントタイプの糸状のもの等を好ましく用いることができる。
例えば、上述した実施形態において、防漏カフ6は一枚のカフ形成用シート16を折り畳んで形成されていたが、複数枚のカフ形成用シート16を組み合わせて形成されていてもよい。斯かる形態としては、肌面接部63及び肌側起立シート部66と、非肌側起立シート部69とがそれぞれ別体のシートで形成されており、肌側起立シート部66と非肌側起立シート部69とが接着剤等で固定されたものが挙げられる。
また、非起立領域F1では、平面視においてカフ内固定部60とカフ形成固定部62とが重なっていなくともよい。さらに非起立領域F1では、平面視においてカフ形成固定部62と本体側固定部67とが重なっていなくともよい。
また、上述した吸収性物品は、止着テープを有するいわゆる展開型の使い捨ておむつであったが、本発明の吸収性物品には、人体から排出される体液(尿、軟便、経血、汗等)の吸収に用いられる物品が広く包含される。例えば、パンツ型の使い捨ておむつ、失禁パッド、生理用ナプキン、生理用ショーツ等が包含される。
<1>
着用者の前後方向に対応する縦方向及び該縦方向に直交する横方向を有するとともに、着用者の股間部に配される股下部並びに該股下部の前後に延在する腹側部及び背側部を有し、液保持性の吸収体を含む吸収性本体と、該吸収性本体の前記縦方向に沿う両側部に沿って配された一対の防漏カフとを備える吸収性物品であって、
前記防漏カフは、着用者の肌と当接する肌当接面を有する帯状の肌面接部、及び該肌面接部と前記吸収性本体との間に位置する起立シート部とを有しており、
前記股下部に、前記肌面接部に配された弾性部材の収縮により前記起立シート部が着用者の肌側に向かって起立する起立領域を有し、
前記腹側部及び前記背側部の少なくとも一方に、前記起立シート部が前記吸収性本体上に固定され、前記肌面接部がカフ内固定部を介して前記起立シート部に固定されている非起立領域を有しており、
前記非起立領域における前記肌面接部においては、前記肌当接面を形成する肌側シートと該肌側シートが相対向する非肌側シートとが非接合であり、且つ前記カフ内固定部が、前記横方向における前記肌面接部の両端以外の部位に位置している、吸収性物品。
前記防漏カフは、前記吸収体と重なる位置に前記非起立領域を有している、前記<1>に記載の吸収性物品。
<3>
前記防漏カフは、前記横方向に沿う断面視において、カフ形成用シートが前記横方向の外方側に連続するように折り返されて形成されており、その折り返し部が、前記肌面接部の前記横方向内方端と前記起立シート部の前記横方向内方端となっている、前記<2>に記載の吸収性物品。
<4>
前記吸収性本体の肌対向面はクッション層を備えたシートで形成されており、
前記カフ内固定部は、平面視において前記クッション層と重なるように位置している、前記<1>~<3>の何れか1に記載の吸収性物品。
<5>
前記吸収性物品は、前記背側部において、前記横方向に延びる弾性部材が伸長状態で配された背側伸縮領域を有しており、
平面視において前記非起立領域と前記背側伸縮領域とが重なっている、前記<1>~<4>の何れか1に記載の吸収性物品。
<6>
前記非起立領域の肌対向面が、部分的に他のシート部材で被覆されている、前記<1>~<5>の何れか1に記載の吸収性物品。
<7>
前記非起立領域は、前記縦方向外方の端縁において、前記肌側シート及び前記非肌側シート間が仮固定されており、該肌側シートと該非肌側シートとが着用状態において剥離可能になされている、前記<1>~<6>の何れか1に記載の吸収性物品。
<8>
前記起立シート部は、前記吸収性物品の厚み方向において前記肌面接部と対向し、前記防漏カフから前記横方向外方に延出するサイドシート部及び該サイドシート部と前記吸収性本体との間に位置する本体側シート部を有しており、
前記サイドシート部と前記本体側シート部とは、前記吸収性物品の厚み方向において相対向し、これら両シート部間に形成されたカフ形成固定部を介して接合されており、
前記起立領域では、平面視において前記カフ内固定部と前記カフ形成固定部とが重なって配されている、前記<1>~<7>の何れか1に記載の吸収性物品。
<9>
前記起立シート部は、前記吸収性本体上に本体側固定部を介して固定されており、
平面視において前記カフ内固定部と、前記カフ形成固定部とともに、前記本体側固定部も重なって配されている、前記<8>に記載の吸収性物品。
<10>
前記カフ形成固定部は、前記縦方向における前記防漏カフの全長に連続して形成されている、前記<8>又は<9>に記載の吸収性物品。
前記カフ形成固定部は、複数の小固定部からなり、該小固定部どうしが部分的に重なり、且つ該小固定部が前記防漏カフの前記縦方向全長に連なるようにして間欠配置されている、前記<8>~<10>の何れか1に記載の吸収性物品。
<12>
前記横方向における前記カフ内固定部の長さW2は、前記横方向における前記肌当接面の長さW1に対して10%以上、好ましくは20%以上であり、また50%以下、好ましくは40%以下であり、また10%以上50%以下、好ましくは20%以上40%以下である、前記<1>~<11>の何れか1に記載の吸収性物品。
<13>
前記横方向における前記肌当接面の長さW1は、6mm以上、好ましくは12mm以上であり、また25mm以下、好ましくは18mm以下であり、また6mm以上25mm以下、好ましくは12mm以上18mm以下である、前記<1>~<12>の何れか1に記載の吸収性物品。
<14>
前記非起立領域では、前記横方向における前記カフ内固定部と前記肌面接部の端縁との間の距離D1が、前記横方向における前記肌当接面の長さW1に対して10%以上、好ましくは20%以上であり、また50%以下、好ましくは40%以下であり、また10%以上50%以下、好ましくは20%以上40%以下である、前記<1>~<13>の何れか1に記載の吸収性物品。
<15>
前記横方向における前記カフ内固定部と前記肌面接部の端縁との間の距離D1は、2mm以上、好ましくは3mm以上であり、また8mm以下、より好ましくは6mm以下であり、また2mm以上8mm以下、好ましくは3mm以上6mm以下である、前記<1>~<14>の何れか1に記載の吸収性物品。
Claims (15)
- 着用者の前後方向に対応する縦方向及び該縦方向に直交する横方向を有するとともに、着用者の股間部に配される股下部並びに該股下部の前後に延在する腹側部及び背側部を有し、液保持性の吸収体を含む吸収性本体と、該吸収性本体の前記縦方向に沿う両側部に沿って配された一対の防漏カフとを備える吸収性物品であって、
前記防漏カフは、着用者の肌と当接する肌当接面を有する帯状の肌面接部、及び該肌面接部と前記吸収性本体との間に位置する起立シート部とを有しており、
前記股下部に、前記肌面接部に配された弾性部材の収縮により前記起立シート部が着用者の肌側に向かって起立する起立領域を有し、
前記腹側部及び前記背側部の少なくとも一方に、前記起立シート部が前記吸収性本体上に固定され、前記肌面接部がカフ内固定部を介して前記起立シート部に固定されている非起立領域を有しており、
前記非起立領域における前記肌面接部においては、前記肌当接面を形成する肌側シートと該肌側シートが相対向する非肌側シートとが非接合であり、且つ前記カフ内固定部が、前記横方向における前記肌面接部の両端以外の部位に位置している、吸収性物品。 - 前記防漏カフは、前記吸収体と重なる位置に前記非起立領域を有している、請求項1に記載の吸収性物品。
- 前記防漏カフは、前記横方向に沿う断面視において、カフ形成用シートが前記横方向の外方側に連続するように折り返されて形成されており、その折り返し部が、前記肌面接部の前記横方向内方端と前記起立シート部の前記横方向内方端となっている、請求項1又は2に記載の吸収性物品。
- 前記吸収性本体の肌対向面はクッション層を備えたシートで形成されており、
前記カフ内固定部は、平面視において前記クッション層と重なるように位置している、請求項1~3の何れか1項に記載の吸収性物品。 - 前記吸収性物品は、前記背側部において、前記横方向に延びる弾性部材が伸長状態で配された背側伸縮領域を有しており、
平面視において前記非起立領域と前記背側伸縮領域とが重なっている、請求項1~4の何れか1項に記載の吸収性物品。 - 前記非起立領域の肌対向面が、部分的に他のシート部材で被覆されている、請求項1~5の何れか1項に記載の吸収性物品。
- 前記非起立領域は、前記縦方向外方の端縁において、前記肌側シート及び前記非肌側シート間が仮固定されており、該肌側シートと該非肌側シートとが着用状態において剥離可能になされている、請求項1~6の何れか1項に記載の吸収性物品。
- 前記起立シート部は、前記吸収性物品の厚み方向において前記肌面接部と対向し、前記防漏カフから前記横方向外方に延出するサイドシート部及び該サイドシート部と前記吸収性本体との間に位置する本体側シート部を有しており、
前記サイドシート部と前記本体側シート部とは、前記吸収性物品の厚み方向において相対向し、これら両シート部間に形成されたカフ形成固定部を介して接合されており、
前記起立領域では、平面視において前記カフ内固定部と前記カフ形成固定部とが重なって配されている、請求項1~7の何れか1項に記載の吸収性物品。 - 前記起立シート部は、前記吸収性本体上に本体側固定部を介して固定されており、
平面視において前記カフ内固定部と、前記カフ形成固定部とともに、前記本体側固定部も重なって配されている、請求項8に記載の吸収性物品。 - 前記カフ形成固定部は、前記縦方向における前記防漏カフの全長に連続して形成されている、請求項8又は9に記載の吸収性物品。
- 前記カフ形成固定部は、複数の小固定部からなり、該小固定部どうしが部分的に重なり、且つ該小固定部が前記防漏カフの前記縦方向全長に連なるようにして間欠配置されている、請求項8~10の何れか1項に記載の吸収性物品。
- 前記横方向における前記カフ内固定部の長さW2は、前記横方向における前記肌当接面の長さW1に対して10%以上50%以下である、請求項1~11の何れか1項に記載の吸収性物品。
- 前記横方向における前記肌当接面の長さW1は、6mm以上25mm以下である、請求項1~12の何れか1項に記載の吸収性物品。
- 前記非起立領域では、前記横方向における前記カフ内固定部と前記肌面接部の端縁との間の距離D1が、前記横方向における前記肌当接面の長さW1に対して10%以上50%以下である、請求項1~13の何れか1項に記載の吸収性物品。
- 前記非起立領域では、前記横方向における前記カフ内固定部と前記肌面接部の端縁との間の距離D1は、2mm以上8mm以下である、請求項1~14の何れか1項に記載の吸収性物品。
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