WO2019146126A1 - 吸収性物品 - Google Patents
吸収性物品 Download PDFInfo
- Publication number
- WO2019146126A1 WO2019146126A1 PCT/JP2018/002947 JP2018002947W WO2019146126A1 WO 2019146126 A1 WO2019146126 A1 WO 2019146126A1 JP 2018002947 W JP2018002947 W JP 2018002947W WO 2019146126 A1 WO2019146126 A1 WO 2019146126A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- region
- absorbent article
- central
- width direction
- elastic member
- Prior art date
Links
- 230000002745 absorbent Effects 0.000 title claims abstract description 268
- 239000002250 absorbent Substances 0.000 title claims abstract description 268
- 238000010521 absorption reaction Methods 0.000 claims abstract description 33
- 230000008602 contraction Effects 0.000 claims description 36
- 239000000463 material Substances 0.000 claims description 21
- 210000001124 body fluid Anatomy 0.000 abstract description 30
- 102220232643 rs1064794935 Human genes 0.000 description 47
- 210000002414 leg Anatomy 0.000 description 38
- 102220226043 rs1064794935 Human genes 0.000 description 28
- 239000010839 body fluid Substances 0.000 description 27
- 238000005452 bending Methods 0.000 description 20
- 210000001015 abdomen Anatomy 0.000 description 5
- 239000006096 absorbing agent Substances 0.000 description 4
- 238000013459 approach Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 210000001217 buttock Anatomy 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- 230000029142 excretion Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 229920000247 superabsorbent polymer Polymers 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Images
Classifications
-
- 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
- A61F13/49017—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means being located at the crotch region
-
- 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
-
- 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
- A61F13/531—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 having a homogeneous composition through the thickness of the pad
- A61F13/532—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 having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
-
- 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
- A61F13/531—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 having a homogeneous composition through the thickness of the pad
- A61F13/532—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 having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
- A61F13/533—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 having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad having discontinuous areas of compression
-
- 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
- A61F13/534—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 having an inhomogeneous composition through the thickness of the pad
- A61F13/535—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 having an inhomogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes
- A61F13/536—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 having an inhomogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes having discontinuous areas of compression
-
- 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
- A61F13/56—Supporting or fastening means
- A61F13/5622—Supporting or fastening means specially adapted for diapers or the like
-
- 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
- A61F13/56—Supporting or fastening means
- A61F13/58—Adhesive tab fastener elements
-
- 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
- A61F13/4902—Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material
- A61F2013/49025—Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material having multiple elastic strands
- A61F2013/49026—Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material having multiple elastic strands with variable spacing
-
- 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
- A61F13/4902—Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material
- A61F2013/49025—Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material having multiple elastic strands
- A61F2013/49028—Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material having multiple elastic strands with different tensile stress
Definitions
- the present invention relates to a tape-type absorbent article such as a disposable diaper.
- the absorbent article described in Patent Document 1 is a tape-type absorbent article having an absorbent core and side flaps extending outward in the width direction of the absorbent core.
- the absorbent article configured in this manner has side flaps extending outward in the width direction relative to the absorbent core.
- the side flaps easily hit the wearer's legs when worn. When the side flaps hit the legs when worn, it may be difficult to pull up the absorbent article to the abdomen.
- the length in the width direction of the absorbent core is shortened, there is a possibility that a sufficient absorption area of the body fluid can not be secured.
- the absorbent article which is easy to pull up at the time of wearing, and which can secure the absorption area of a bodily fluid is desired.
- An absorbent article includes an anteroposterior direction, a width direction orthogonal to the anteroposterior direction, an absorbent core including an absorbent material, a side flap extending outward in the width direction with respect to the absorbent core, and And a fastening tape provided on a side flap, and having a front side area, a crotch area and a rear side area obtained by equally dividing the total length in the front-rear direction of the absorbent core into three, the width of the side flap in the crotch area
- the length of the direction is 30 mm or more
- the crotch region has a central region and side regions located on both outer sides in the width direction than the central region, and the central region is At the outer edges on both sides of the region, low basis weight portions having a lower basis weight of the absorbent material than the periphery are provided along the longitudinal direction, and the contraction force in the longitudinal direction of the central region is the side Said longitudinal direction of the area Higher than Chijimiryoku.
- An absorbent article comprises: an anteroposterior direction, a width direction orthogonal to the anteroposterior direction, an absorbent core including an absorbent material, and a side flap extending outward in the width direction with respect to the absorbent core; A fastening tape provided on the side flaps, and having a front side area, a crotch area and a rear side area obtained by equally dividing the total length of the absorbent core in the front-rear direction into three, and the crotch area in the crotch area It is an absorbent article whose length of the cross direction is 30 mm or more, and the crotch area has a central area and a side area located outside the central area in the width direction, and the central area At the outer edge of the region, a pair of low basis weight portions whose basis weight of the absorbent material is lower than that of the periphery is provided along the front-rear direction, and in the central region, the central region is more than the side region Also projecting to the wearer
- An absorbent article includes an anteroposterior direction, a width direction orthogonal to the anteroposterior direction, an absorbent core including an absorbent material, a side flap extending outward in the width direction with respect to the absorbent core, and And a fastening tape provided on a side flap, and having a front side area, a crotch area and a rear side area obtained by equally dividing the total length in the front-rear direction of the absorbent core into three, the width of the side flap in the crotch area
- the length of the direction is 30 mm or more
- the crotch region has a central region and side regions located on both outer sides in the width direction than the central region, and the central region is At the outer edges on both sides of the region, low basis weight portions having a lower basis weight of the absorbent material than the periphery are provided along the longitudinal direction, and the contraction force in
- the crotch region when the absorbent article is pulled up so that the crotch region approaches the wearer during wearing, the crotch region is deformed into a convex shape in which the central region protrudes to the body side relative to the side region.
- the absorbent core in the crotch region By deforming the absorbent core in the crotch region into a convex shape, the length in the width direction of the entire absorbent core becomes short at the time of mounting.
- the side flaps do not easily come into contact with the legs of the wearer, and the absorbent article tends to be pulled up. Therefore, the attachment property (easiness of putting on) of the absorbent article is improved.
- the absorbent core in the crotch region is deformed into a convex shape to realize ease of pulling up at the time of wearing, the length in the width direction of the entire crotch region can be secured, and the fluid absorption area can be secured.
- the central region may be provided with a central elastic member that can expand and contract in the front-rear direction.
- the absorbent core in the crotch region is easily deformed due to the convex shape in which the central region protrudes toward the wearer rather than the side region. Therefore, the side flaps do not easily hit the wearer's leg when worn, and the absorbent article is more easily pulled up.
- An absorbent article comprises: an anteroposterior direction, a width direction orthogonal to the anteroposterior direction, an absorbent core including an absorbent material, and a side flap extending outward in the width direction with respect to the absorbent core; A fastening tape provided on the side flaps, the absorbent core has a front area, a crotch area and a rear area obtained by dividing the total length of the absorbent core in the front-rear direction into three, and the crotch area
- the length in the width direction of the side flaps is 30 mm or more
- the crotch region includes a central region and a side region located outside the central region in the width direction.
- a pair of low basis weight portions having a lower basis weight of the absorbent material than the periphery is provided along the front-rear direction at the outer edge of the central region, and the central region is provided with the central region Is more than the side area Wherein such absorbent core is deformed in the crotch region in a convex shape protruding in use side, the central elastic member expands and contracts in the longitudinal direction is provided.
- the absorbent core in the crotch region is deformed into a convex shape in which the central region protrudes to the body side relative to the side region.
- the absorbent core in the crotch region is deformed into a convex shape to realize ease of pulling up at the time of wearing, the length in the width direction of the entire crotch region can be secured, and the fluid absorption area can be secured.
- the central elastic member may be disposed outside the center of the central area and the center of the outer edge of the central area in the width direction.
- the contraction force by the central elastic member acts on the low basis weight portion easy.
- the low basis weight portion tends to be pulled up to the body side by both the difference in rigidity due to the difference in basis weight and the contraction force of the central elastic member. Therefore, the absorbent core in the crotch region is deformed into a convex shape, and it is easy to realize the ease of pulling up when attached.
- the central elastic member may be disposed to overlap the low basis weight portion.
- the contraction force by the central elastic member is likely to act by the low basis weight portion.
- the low basis weight part can be easily pulled up to the body side by both the difference in rigidity due to the difference in basis weight and the contraction force of the central elastic member, and the absorbent core in the crotch region is deformed into a convex shape, realizing ease of pulling up at the time of wearing It becomes easy to do.
- the central elastic members may be arranged in a pair in the width direction so as not to overlap with the center in the width direction of the central region.
- a region not overlapping with the central elastic member is provided between the low basis weight portions.
- the area that does not overlap the central elastic member is easier to be placed away from the body when worn than the area where the central elastic member is disposed and the area where the low basis weight portion is provided.
- the central elastic member may be disposed on the non-skin facing surface side of the absorbent core.
- the central elastic member since the central elastic member is disposed on the non-skin facing surface side of the absorbent core, the central elastic member can easily push up the absorbent core toward the wearer. Therefore, the absorbent core in the crotch region is more easily deformed into a convex shape in which the central elastic member brings the absorbent core closer to the body side and the central region protrudes toward the wearer than the side region. While securing the absorption area of the body fluid, it is easier to obtain the effect of being easy to pull up at the time of wearing.
- the central elastic member may be disposed in an area not overlapping the absorbent core in a side area.
- the central elastic member since the central elastic member does not overlap the absorbent core in the side region, the central region is more easily pulled to the body side than the side region.
- the central region is easily deformed by the convex shape projecting to the body side. While securing the absorption area of the body fluid, it is easier to obtain the effect of being easy to pull up at the time of wearing.
- the central elastic member is disposed across a fold line in which the absorbent article is folded in two in the front-rear direction, and the center of the central elastic member in the front-rear direction is the absorbent article It may be located behind the center of the direction of the above-mentioned of a.
- the fold can be brought closer to the body by arranging the central elastic member across the fold. Further, by disposing the central elastic member at the rear of the absorbent article, the rear side can be more shrunk than the center in the front-rear direction of the absorbent article. It can be brought close to the area on which the body is put when worn and the area contracted by the central elastic member, and it is easy to make the area extending from the body fit along the body when worn.
- the absorbent core is placed along the body, and the absorbent core is prevented from being caught on the legs when worn, and it is easy to pull it up.
- by arranging the absorbent core along the body it is possible to secure the absorption area of the body fluid.
- the rear end edge of the central elastic member is located on the front side of a region from the rear end edge of the absorbent article to 1 ⁇ 3 of the total length of the absorbent article in the front-rear direction. Good.
- the area from the rear end edge of the absorbent article to one third of the entire length in the front-rear direction of the absorbent article tends to be the area on which the wearer's body is placed when worn.
- the absence of the central elastic member in the area on which the body rests when worn makes it easy to place the absorbent core along the body with the body on a smooth absorbent core.
- the rear end edge of the central elastic member may be located forward of the rear end edge of the low basis weight portion.
- the contraction force by the central elastic member hardly acts, and the smooth state is easily maintained.
- the rear end of the absorbent article which can be put on the body at the time of wearing tends to be smooth along the body.
- the distance between the low basis weight portions may be 1/2 or less of the maximum length in the width direction of the absorbent core.
- the low basis weight portions are arranged to be close to the body when worn.
- the distance between the low basis weight parts is 1/2 or less of the maximum length of the absorbent core, it is easy to be disposed between the legs of the wearer and to maintain the convex shape of the absorbent core. Therefore, the side flaps do not easily hit the wearer's leg when worn, and the absorbent article is more easily pulled up.
- the distance between the low basis weight portions may be 1/2 or less of the minimum length of the absorbent core in the crotch region in the width direction.
- the distance between the low basis weight portions is 1/2 or less of the minimum length of the absorbent core in the crotch region, it is easy to be disposed between the legs of the wearer, and the convex of the absorbent core It is easy to maintain the shape. Therefore, the side flaps do not easily hit the wearer's leg when worn, and the absorbent article is more easily pulled up.
- the flexural rigidity in the width direction of the central region may be higher than the flexural rigidity in the width direction of the side region.
- the bending rigidity in the width direction of the central region is higher than the bending rigidity in the width direction of the side regions, it is easy to maintain the central region in a smooth state even in a configuration in which the contraction force of the central region is high. Therefore, it is easier to secure an absorption area of body fluid.
- the absorbent core can be easily arranged along the body, and the absorbent core can be prevented from being caught on the leg at the time of wearing, and can be easily pulled up.
- a squeezed portion obtained by squeezing at least the absorbent core may be formed in the central region.
- the squeezing portion increases the bending stiffness of the central region, and the central region is maintained in a smooth state and disposed along the body. Therefore, it is easier to secure an absorption area of body fluid.
- the absorbent core can be easily arranged along the body, and the absorbent core can be prevented from being caught on the leg at the time of wearing, and can be easily pulled up.
- the squeezing portion may be disposed between the low basis weight portions.
- the area between the low basis weight portions is maintained in a smooth state and arranged along the body. Therefore, it is easier to secure an absorption area of body fluid.
- the absorbent core can be easily arranged along the body, and the absorbent core can be prevented from being caught on the leg at the time of wearing, and can be easily pulled up.
- a central elastic member which is expanded and contracted in the front-rear direction is disposed in the central region, and the central elastic member may be arranged outside the width direction with respect to the pressing portion. .
- the area in which the central elastic member is disposed is pulled up toward the body by contraction of the central elastic member, and the area between the central elastic members is likely to be disposed along the body by the squeezing portion.
- the central elastic members are easily deformed into a convex shape along the body. Therefore, it is easier to obtain the effect of being easy to pull up at the time of wearing while securing the absorption area of the body fluid.
- FIG. 1 is a schematic plan view of an absorbent article 10 according to the present embodiment.
- the schematic plan view shown in FIG. 1 shows the disposable diaper in an extended state.
- FIG. 2 is a schematic cross-sectional view along the AA cross section of the absorbent article shown in FIG.
- FIG. 3 is a schematic cross-sectional view along the BB cross section of the absorbent article shown in FIG.
- the absorbent article 10 is stretched to a state in which no wrinkles are formed.
- the absorbent article 10 is removed from the package, and an atmosphere of 20 ° C. ⁇ 2 ° C., relative humidity 60% ⁇ 5% RH It is in the state left under for 24 hours.
- the absorbent article 10 has a longitudinal direction L and a width direction W orthogonal to each other.
- the front-rear direction L is defined by the direction extending to the body front side and the body rear side.
- the front-rear direction L is a direction extending in the front-rear direction in the developed absorbent article 10.
- the absorbent article 10 has a thickness direction T orthogonal to both the longitudinal direction L and the width direction W.
- the thickness direction T extends to the skin facing surface side T1 facing the wearer and the non-skin facing surface side T2 opposite to the skin facing surface side.
- Absorbent article 10 has front waist area S1, back waist area S2, and middle area S3.
- the front waist area S1 is an area facing the front waist area (belly region) of the wearer.
- the back waist area S2 is an area facing the back waist (back) of the wearer, and includes an area on which the body (hip) is placed when worn.
- the middle area S3 is an area located under the crotch of the wearer and disposed between the front waist area S1 and the back waist area S2.
- the middle zone S3 is an area provided with a leg-surrounding opening disposed around the legs of the wearer. The leg opening is a portion recessed inward in the width direction from the outer edge of the absorbent article.
- the absorbent article 10 comprises an absorbent core 31 comprising an absorbent material.
- the absorbent core 31 comprises an absorbent material such as ground pulp or superabsorbent polymer (SAP), or a mixture thereof.
- SAP superabsorbent polymer
- the absorbent core 31 may be covered by a core wrap 32.
- the absorbent core 31 and the core wrap 32 may constitute an absorbent.
- the core wrap 32 may be made of tissue, and may be disposed on the skin facing surface T1 of the absorbent core 31 and the non-skin facing surface of the absorbent core.
- the absorbent article 10 has a front region R11, a crotch region R13, and a rear region R12 obtained by equally dividing the total length of the absorbent core 31 in the front-rear direction into three.
- a crotch region R13 is disposed on the rear side of the front region R11, and a rear side region R12 is disposed on the rear side of the crotch region R13.
- the length in the front-rear direction L of the front region R11, the length in the front-rear direction L of the crotch region R13, and the length in the front-rear direction L of the rear region R12 are the same.
- the crotch region R13 has a central region R13C and side regions R13S positioned on both outer sides in the width direction W than the central region R13C.
- the central region R13C may be disposed across the center in the width direction W of the absorbent core 31.
- the side regions R13S may be disposed on both sides in the width direction of the central region R13C.
- the low basis weight portions 33 may be provided at the outer edges on both sides of the central region R13C.
- the low basis weight portion 33 may be provided at least at the outer edge of the central region R13C, and may extend inward in the width direction W from the outer edge of the central region R13C.
- the outer edge of the low basis weight portion 33 defines the outer edge of the central region R13C.
- the outer edge of the low basis weight portion 33 defines the boundary between the side region R13S and the central region R13C.
- the outer side portion in the present invention is a portion which occupies a certain range in the width direction W including the outer side edge in the width direction W, and the outer side edge is an outer side edge in the width direction W.
- the inner portion is a portion which occupies a certain range in the width direction W including the inner edge in the width direction W, and the inner edge is an inner edge in the width direction W.
- the low basis weight portion 33 is provided along the front-rear direction L.
- the low basis weight portion 33 may extend in the front-rear direction L, may be parallel to the front-rear direction L, or may be inclined at an angle of less than 90 degrees with respect to the front-rear direction L.
- the low basis weight portion 33 is a portion where the basis weight of the absorbent material is lower than that of the surrounding absorbent core 31, the thickness is thinner than the surrounding absorbent core 31, and the rigidity is lower. Therefore, the low basis weight portion 33 is likely to be a deformation base point in the mounted state. In the absorbent core 31, a deformation base point extending in the front-rear direction in the mounted state is easily formed.
- the low basis weight portion 33 may be a portion where the basis weight of the absorbent material is substantially zero or may be a portion where the absorbent material having a basis weight smaller than the surrounding portion is disposed.
- the low basis weight portion 33 may be a slit having a certain length in the width direction W, or may be a cut whose length in the width direction W is practically zero.
- the low basis weight portion 33 may be provided at least in the crotch region R13, and may extend from the crotch region R13 to the rear region R12 or from the crotch region R13 to the front region R11.
- the front end edge 33F of the low basis weight portion 33 may be located in the crotch region R13, and the rear end edge 33R of the low basis weight portion 33 may be located in the rear region R12.
- the length in the width direction W of each low basis weight portion 33 may be 2 mm or more and 10 mm or less, and the length in the front-rear direction L of the low basis weight portion 33 may be 30 mm or more and 180 mm or less.
- the compressed portion 35 may be formed in the absorbent core 31.
- the squeezed portion 35 may be formed by squeezing at least the absorbent core 31 in the thickness direction T, and may be formed by squeezing the other members such as the core wrap 32 and the absorbent core 31.
- the pressing unit 35 may be provided at least in the central region R13C.
- the pressing portions 35 of the present embodiment are point-like, and a plurality of pressing portions 35 are provided at intervals in the front-rear direction L and the width direction W.
- the squeezed portion 35 is provided on the front side of the low basis weight portion 33 and in the region between the low basis weight portions 33 in the width direction W.
- the surface sheet 21 and the side sheet 22 may be provided in the skin opposing surface side T1 of the absorber 30 containing the absorption core 31.
- the surface sheet 21 may be disposed across the center of the absorbent body 30 in the width direction W.
- the side sheets 22 may be arranged to cover the outer side of the top sheet 21.
- the top sheet 21 and the side sheets 22 may be made of, for example, a liquid-permeable sheet such as a non-woven fabric or a perforated plastic film.
- the inner part of the side sheet 22 may be folded back and overlapped.
- a leakproof elastic member 43 may be provided between the overlapped side sheets 22 so as to extend and contract in the front-rear direction L.
- the leakproof elastic member 43 may be made of a thread rubber that expands and contracts in the front-rear direction L.
- the side sheet 22 and the leakproof elastic member 43 constitute a leakproof gather that stands up on the skin facing surface T1 when worn.
- the back sheet 23 and the exterior sheet 24 may be provided on the non-skin facing surface T2 of the absorber 30.
- the exterior sheet 24 may be provided on the non-skin facing surface T2 of the back sheet 23.
- the length in the width direction W of the back sheet 23 is shorter than the length in the width direction W of the exterior sheet 24, and the length in the front-rear direction L of the back sheet 23 is shorter than the length in the front-rear direction L of the exterior sheet 24.
- the back sheet 23 may be made of a liquid impermeable film.
- the exterior sheet 24 may be made of a liquid-permeable nonwoven fabric.
- An indicator 51 may be disposed between the back sheet 23 and the absorber 30.
- the indicators 51 extend in the front-rear direction L and are spaced apart in the width direction W.
- the indicator 51 is disposed between the low basis weight portions 33 in the width direction W.
- the indicator 51 is configured to be discolored by absorbing the body fluid, and to be able to grasp the absorption state of the body fluid from the non-skin facing surface T2 of the absorbent article 10.
- Leg elastic members 42 extending in the front-rear direction L may be provided between the side sheet 22 and the back sheet 23 and between the side sheet 22 and the exterior sheet 24.
- the leg elastic member 42 may be configured by a band-like stretchable sheet that expands and contracts in the front-rear direction L. The contraction of the leg elastic members 42 causes the absorbent article 10 to fit around the legs when worn.
- the absorbent article 10 may have a side flap 15 that extends outward in the width direction W than the absorbent core 31.
- the side flaps 15 are portions that extend outside the absorbent core 31 in the width direction W.
- the side flaps 15 are provided between the outer edge of the absorbent core 31 and the outer edge of the absorbent article 10.
- the side flaps 15 may be configured by the top sheet 21, the side sheets 22, the leg elastic members 42, the back sheet 23, and the exterior sheet 24.
- the length in the width direction of the side flaps 15 in the crotch region R13 may be 30 mm or more and 100 mm or less.
- the side flaps 15 extend 30 mm or more than the absorbent core 31 in the crotch region, the side flaps 15 easily hit the wearer's leg when worn. When the side flaps 15 hit the legs during wearing, it may be difficult to pull up the absorbent article to the abdomen.
- the length of the width direction of a side flap should just be 30 mm or more in at least one part of a crotch area. In other words, in the form in which the length of the side flap in the crotch region changes, it may have a portion of 30 mm or more and a portion of less than 30 mm.
- the side flaps 15 having a length in the width direction of 30 mm or more are provided at least in part, the side flaps 15 easily come into contact with the legs at the time of mounting.
- the side flaps 15 are configured so as not to easily hit the legs when worn. The configuration in which the side flaps 15 do not easily hit the legs will be described in detail in the description of the mounting state described later.
- a fastening tape 91 is provided on the outer side of the side flaps 15.
- the fastening tape 91 extends along the width direction W in the back waist area S2 and is fixed to the target portion 92 to hold the absorbent article 10 on the body of the wearer.
- the target unit 92 is configured to fasten the fastening tape 91 in the front waist area S1.
- the contraction force in the front-rear direction L of the central region R13C is configured to be higher than the contraction force in the front-rear direction L of the side region R13S.
- the central region R13C shrinks more easily in the front-rear direction L than the side region R13S.
- the contraction force in the front-rear direction L of the central region R13C may be configured to be higher than the contraction force in the front-rear direction L of the side region R13S.
- the contraction of the central elastic member 41 makes the central region R13C easier to contract than the side regions R13S.
- the central elastic member 41 is provided such that the absorbent core 31 of the crotch region R13 is deformed in a convex shape in which the central region R13C protrudes to the wearer side more than the side region R13S when worn.
- the contraction force is the contraction force in the product state of the absorbent article 10, and the side by the effective length of the stretchable member (the central elastic member 41 of the present embodiment) and the contraction in the natural state.
- the contraction forces of the region R13S and the central region R13C can be compared.
- An area where the contraction mode in the natural state is large is an area where the contraction force is high.
- the central elastic member 41 is a portion in which an elastic member such as a rubber thread is disposed so as to be able to expand and contract in the front and rear direction L, and includes a portion where the elastic member is disposed in the state not to expand and contract in the front and rear direction L Absent. That is, the central elastic member 41 is an effective length portion of the stretchable member constituting the central elastic member 41.
- the overlapping state is a state in which one member and the other member overlap in a plan view, and the other member is on the skin facing surface side or the non-skin facing surface side of one member. It is in the state of being arranged. In the overlapping state, not only a state in which one member and the other member are in contact with each other, but also a configuration in which another member is interposed between one member and the other member.
- FIG. 4 is a view schematically showing the mounting state of the absorbent article on the AA cross section.
- FIG. 5 is a view schematically showing the mounting state of the absorbent article on the BB cross section.
- FIG. 6 is the figure which showed typically the state of the absorbent article which concerns on embodiment, and is the figure which visually recognized the wearer of the sleeping state from the front side.
- the lines BL shown in FIGS. 4 and 5 indicate the lines of the body of the wearer.
- the buttocks of the wearer When wearing the tape-type absorbent article 10, first, the buttocks of the wearer is placed on the back waist area S2 of the absorbent article 10 in a state where the absorbent article 10 is developed. Then, the absorbent article 10 is passed between the legs of the wearer, and the absorbent article 10 is pulled up so that the front waist area S1 can cover the abdomen of the wearer. When the absorbent article 10 is pulled up to the wearer, the crotch region R13 is disposed to face the crotch of the wearer.
- the rigidity of the low basis weight portion 33 is lower than that of the surroundings, so the absorbent core 31 in the crotch region R13 is the low basis weight portion 33 Transform to a base point.
- the low basis weight portion 33 extends in the front-rear direction L, and a deformation base point extending in the front-rear direction L is formed between the central region R13C and the side regions R13S.
- the central region R13C contracts in the front-rear direction L than the side region R13S and is pulled up to the body side. Therefore, as shown in FIG. 4, the absorbent core 31 of the crotch region R13 is deformed into a convex shape in which the central region R13C protrudes to the body side more than the side region R13S.
- the absorbent core 31 in the crotch region R13 By deforming the absorbent core 31 in the crotch region R13 into a convex shape, the length in the width direction W of the entire absorbent core 31 becomes short at the time of mounting. At the time of wearing, the side flaps 15 hardly come into contact with the legs of the wearer, and the absorbent article 10 is easily pulled up. In addition, since the absorption core 31 of the crotch region R13 is deformed into a convex shape to realize ease of pulling up at the time of wearing, the length in the width direction W of the entire crotch region R13 can be secured, and the absorption area of body fluid can be secured. .
- the region between the low basis weight portions 33 is disposed to face the wearer's excretion opening.
- the absorbability of the body fluid can be improved and the leakage can be suppressed. More preferably, as shown in FIG. 6, when the absorbent article 10 in the worn state is viewed from the non-skin facing surface side T 2, the absorbent article 10 has a deformation base point based on the outer edge of the low basis weight portion 33.
- a substantially rectangular area surrounded by the deformation base points F1 to F3 is disposed to be opposed to the excretory opening of the wearer. By arranging the region surrounded by the deformation base points F1 to F3 to be opposed to the excretion opening, the absorbability of the body fluid can be improved, and the leakage can be suppressed.
- the central elastic member 41 may be disposed in a region overlapping with the central region R13C in a plan view. Due to the contraction of the central elastic member 41, the absorbent core 31 of the crotch region R13 is deformed into a convex shape in which the central region R13C protrudes to the wearer side more than the side region R13S.
- the central elastic member 41 may be disposed outside the center R13WL of the central region R13C and the outer edge R13CE of the central region R13C in the width direction W.
- a low basis weight portion 33 serving as a deformation base point is provided at the outer edge R13CE of the central region R13C.
- the central elastic member 41 Since the central elastic member 41 is positioned outside the center R13WL of the center of the central region R13C and the outer edge of the central region R13C in the width direction W, the contraction force by the central elastic member 41 is reduced to the low basis weight portion 33. It is easy to work.
- the low basis weight portion 33 is easily pulled up to the body side by both the difference in rigidity due to the difference in basis weight and the contraction force of the central elastic member 41. Therefore, the absorbent core of the crotch region R13 is easily deformed into a convex shape.
- the central elastic member 41 may be disposed to overlap the low basis weight portion 33 in plan view. According to such a configuration, the contraction force by the central elastic member 41 is likely to act by the low basis weight portion 33.
- the low basis weight portion 33 is easily pulled up to the body side by both the rigidity difference due to the difference in basis weight and the contraction force of the central elastic member 41, and the absorbent core 31 is easily deformed into a convex shape.
- the central elastic members 41 may be spaced apart in the width direction at a position not overlapping with the center of the central region R13C in the width direction in plan view.
- two thread rubbers are disposed apart from each other in the left and right direction.
- a region not overlapping with the central elastic member 41 is provided between the low basis weight portions 33.
- the region not overlapping with the central elastic member 41 is easier to be disposed away from the body when worn than the region in which the central elastic member 41 is disposed and the region in which the low basis weight portion 33 is provided.
- the central elastic member 41 may be disposed outside the indicator 51 in the width direction W. Since the central elastic member 41 does not overlap with the indicator 51, contraction of the central elastic member 41 suppresses contraction of the indicator 51, and visibility of the indicator 51 when viewed from the outside of the absorbent article 10 can be secured. .
- the central elastic member 41 may be disposed in a region separated in the width direction W and overlapping the low basis weight portion 33.
- region which does not overlap with the center elastic member 41 tends to be arrange
- the central elastic member 41 may be constituted by an elastic sheet having a certain length in the width direction W.
- the stretchable sheet may be arranged to straddle the pair of low basis weight portions 33.
- the central elastic member 41 may be disposed on the non-skin facing surface T2 of the absorbent core 31. Since the central elastic member 41 is disposed on the non-skin facing surface T2 of the absorbent core 31, the central elastic member 41 can easily push up the absorbent core 31 toward the wearer. The central elastic member 41 brings the absorbent core 31 closer to the body side, making it easier to deform the absorbent core 31 into a convex shape.
- the central elastic member 41 may be disposed in a region not overlapping the side region R13S in plan view. That is, the central elastic member 41 may be disposed only in the area overlapping the central area R13C. Since the central elastic member 41 is not disposed in the side region R13S, the central region R13C is more easily pulled up to the body side than the side region R13S. The central region R13C is easily deformed by the convex shape projecting to the body side. While securing the absorption area of the body fluid, it is easier to obtain the effect of being easy to pull up at the time of wearing.
- the central elastic member 41 may be disposed across a fold line FL in which the absorbent article 10 is folded in two in the front-rear direction L.
- the fold line FL of the absorbent article 10 extends in the width direction W, passing through the center of the absorbent article 10 in the front-rear direction L.
- the fold line FL of the absorbent article 10 may be placed away from the body when worn by a fold.
- the center 41 CL of the central elastic member 41 in the front-rear direction L may be located rearward of the center of the absorbent article 10 in the front-rear direction L.
- the central elastic member 41 By arranging the central elastic member 41 to the rear of the absorbent article 10, the rear side can be more shrunk than the center of the absorbent article 10 in the front-rear direction L.
- On the rear side of the center of the absorbent article 10 in the front-rear direction L there is provided a region on which the body (the buttocks) is placed when worn. Since the area on which the body is placed and the area contracted by the central elastic member 41 are close, the area extending from the body at the time of wearing can be easily aligned with the body.
- the area on which the body is placed at the time of wearing is in close contact with the body by body pressure, and the area extending from the body is easily in close contact with the body by the central elastic member 41.
- the rear end edge 41R of the central elastic member 41 is located on the front side of the region S4 from the rear end edge of the absorbent article 10 to 1/3 of the entire length of the absorbent article 10 in the front-rear direction L. You may The area from the rear end edge of the absorbent article 10 to 1/3 of the total length in the front-rear direction L of the absorbent article 10 is likely to be an area on which the wearer's body (hip) is placed when worn. Since the central elastic member 41 is not provided in the area where the body is put on at the time of wearing, it is easy to put the body on the absorbent core 31 in a smooth state and to arrange the absorbent core 31 along the body.
- the absorbent core 31 By arranging the absorbent core 31 along the body, it is possible to suppress the absorbent core 31 from being caught by the leg or the like at the time of wearing, and it is easy to pull it up. In addition, by arranging the absorbent core 31 along the body, it is possible to secure the absorption area of the body fluid.
- the rear end edge 41R of the central elastic member 41 may be located forward of the rear end edge 33R of the low basis weight portion 33.
- the contraction force by the central elastic member 41 is hard to act, and it is easy to maintain a smooth state.
- the rear end portion of the absorbent article 10 on which the body can be put on at the time of wearing tends to be smooth along the body.
- the front end edge 41F of the central elastic member 41 may be located rearward of the front end edge 33F of the low basis weight portion 33. Since the central elastic member 41 is positioned inward of the low basis weight portion 33 in the front-rear direction L, only the region where the low basis weight portion 33 is disposed in the front-rear direction L is contracted by the central elastic member 41 Only the area where the basis weight portion 33 is disposed can be disposed closer to the body. It becomes easier to realize a convex shape in which the area where the low basis weight portion 33 is disposed is a vertex.
- the distance G33 between the low basis weight portions 33 may be 1/2 or less of the maximum length 31M1 in the width direction of the absorbent core 31.
- the distance G33 between the low basis weight portions 33 is the distance in the width direction between the inner edges of the low basis weight portions 33, and in the configuration in which the distance between the low basis weight portions 33 changes, It is a distance.
- the low basis weight portions 33 are arranged to approach the body when worn. When the distance G33 between the low basis weight portions 33 is 1/2 or less of the maximum length 31W1 of the absorbent core 31, it is easy to be disposed between the legs of the wearer, and the convex shape of the absorbent core 31 is easily maintained.
- the distance G33 between the low basis weight portions 33 may be 1/2 or less of the minimum length 31W2 in the width direction W of the absorbent core 31 in the crotch region R13. Since the distance between the low basis weight portions 33 is 1/2 or less of the minimum length of the absorbent core 31 in the crotch region R13, it is easy to be placed between the legs of the wearer, and the convex shape of the absorbent core is maintained Easy to do. Therefore, the side flaps 15 do not easily hit the wearer's legs when worn, and the absorbent article 10 is more easily pulled up. Further, the distance G33 between the low basis weight portions 33 may be 30 mm or more and 35 mm or less. When the distance G33 between the low basis weight portions 33 is 30 mm or more and 35 mm or less, it is easy to be disposed between the legs of the wearer, and the convex shape of the absorbent core 31 is easily maintained.
- the bending rigidity in the width direction W of the central region R13C may be higher than the bending rigidity in the width direction W of the side region R13S. Since the bending rigidity in the width direction W of the central region R13C is higher than the bending rigidity in the width direction W of the side region R13S, it is easy to maintain the central region R13C in a smooth state even in the configuration in which the contraction force of the central region R13C is high.
- By arranging the absorbent core 31 along the body it is possible to suppress the absorbent core 31 from being caught by the leg or the like at the time of wearing, and it is easy to pull it up. In addition, by arranging the absorbent core 31 along the body, it is possible to secure the absorption area of the body fluid.
- the bending rigidity of at least a part of the central region R13C may be higher than the bending rigidity in the width direction W of the side region R13S, and the central region R13C is a region having the same bending rigidity as the side region R13S. May be partially included.
- the pressing part 35 which squeezed at least the absorption core 31 may be formed in center area
- the bending rigidity of the central region R13C is increased by the squeezed portion 35, and the central region R13C is maintained in a smooth state and easily arranged along the body.
- the central elastic member 41 may be disposed on the outer side in the width direction than the pressing portion 35, and may be disposed so as not to overlap the pressing portion 35 in a plan view.
- the area in which the central elastic member 41 is disposed is pulled up toward the body by contraction of the central elastic member 41, and the area between the central elastic members 41 is likely to be disposed along the body by the squeezing portion 35.
- the central elastic members 41 easily deform in a convex shape along the body. Therefore, it is easy to pull it up at the time of wearing while securing the absorption area of the body fluid.
- the bending rigidity of the central region R13C may be configured to be higher than the bending rigidity of the side region R13S by a configuration other than the pressing portion 35.
- the bending stiffness of the central region R13C may be configured to be higher than the bending stiffness of the side region R13S by the basis weight of the bending absorption core 31 being higher than the basis weight of the absorption core 31 of the side region R13S.
- the central region R13C has more material than the material overlapping the side region R13S, or the rigidity of the material overlapping the central region R13C is higher than the rigidity of the material overlapping the side region R13S.
- the bending rigidity of R13C may be configured to be higher than the bending rigidity of the side region R13S.
- the pressing part 35 may be arrange
- the measurement of the “weight of the absorbent core” in the present specification shall be performed by the following measurement method.
- the absorbent article 10 When the absorbent article 10 is enclosed in a package or the like, it is removed from the package, and in this state, a sample which is left for 12 hours in an atmosphere of 20 ° C. ⁇ 2 ° C. and relative humidity 60% ⁇ 5% RH is used.
- the packaging sheet In an absorbent article packaged by a packaging sheet or the like, the packaging sheet is opened, and the folded absorbent article is developed. Next, a portion for measuring the basis weight is cut out from the absorbent article, and a portion other than the absorbent core, such as a surface sheet, is removed from the cut portion. And the area and weight of the part which measure the basis weight of an absorption core are measured. The basis weight is calculated based on the weight and the area.
- the "bending stiffness" in the present specification may be a value measured by Gurley bending resistance.
- Gurley hardness can be performed according to JIS-L1096 using a Gurley type flexibility tester manufactured by Yasuda Seiki Seisakusho Co., Ltd., No. 311.
- the length of the sample in the width direction of measurement of Gurley stiffness can be 30 mm, and the length in the front-rear direction can be 25 mm.
- ADVANTAGE OF THE INVENTION According to this invention, it is easy to pull up at the time of mounting
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Abstract
Description
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。
一態様に係る吸収性物品は、前後方向と、前記前後方向に直交する幅方向と、吸収材料を含む吸収コアと、前記吸収コアよりも前記幅方向の外側に延出するサイドフラップと、前記サイドフラップに設けられたファスニングテープと、を備え、前記吸収コアの前記前後方向の全長を3等分した前側域、股下域及び後側域を有し、前記股下域における前記サイドフラップの前記幅方向の長さは、30mm以上である吸収性物品であって、前記股下域は、中央領域と、前記中央領域よりも前記幅方向の両外側に位置するサイド領域と、を有し、前記中央領域の両側の外側縁には、周囲よりも前記吸収材料の坪量が低い低坪量部が前記前後方向に沿って設けられており、前記中央領域の前記前後方向の収縮力は、前記サイド領域の前記前後方向の収縮力よりも高い。
以下、図面を参照して、実施形態に係る吸収性物品について説明する。なお、以下の図面の記載において、同一又は類似の部分には、同一又は類似の符号を付している。ただし、図面は模式的なものであり、各寸法の比率等は現実のものとは異なることに留意すべきである。したがって、具体的な寸法等は、以下の説明を参酌して判断すべきである。また、図面相互間においても互いの寸法の関係や比率が異なる部分が含まれ得る。
15 サイドフラップ
21 表面シート
22 サイドシート
23 裏面シート
24 外装シート
30 吸収体
31 吸収コア
R11 前側域
R12 後側域
R13 股下域
R13C 中央領域
R13S サイド領域
32 コアラップ
33 低坪量部
41 中央弾性部材
42 レッグ弾性部材
43 防漏弾性部材
51 インジケータ
91 ファスニングテープ
92 ターゲット部
L 前後方向
W 幅方向
T 厚さ方向
T1 肌対向面側
T2 非肌対向面側
S1 前胴回り域
S2 後胴回り域
S3 中間域
Claims (17)
- 前後方向と、
前記前後方向に直交する幅方向と、
吸収材料を含む吸収コアと、
前記吸収コアよりも前記幅方向の外側に延出するサイドフラップと、
前記サイドフラップに設けられたファスニングテープと、を備え、
前記吸収コアの前記前後方向の全長を3等分した前側域、股下域及び後側域を有し、
前記股下域における前記サイドフラップの前記幅方向の長さは、30mm以上である吸収性物品であって、
前記股下域は、中央領域と、前記中央領域よりも前記幅方向の両外側に位置するサイド領域と、を有し、
前記中央領域の両側の外側縁には、周囲よりも前記吸収材料の坪量が低い低坪量部が前記前後方向に沿って設けられており、
前記中央領域の前記前後方向の収縮力は、前記サイド領域の前記前後方向の収縮力よりも高い、吸収性物品。 - 前記中央領域には、前記前後方向に伸縮する中央弾性部材が設けられている、請求項1に記載の吸収性物品。
- 前後方向と、
前記前後方向に直交する幅方向と、
吸収材料を含む吸収コアと、
前記吸収コアよりも前記幅方向の外側に延出するサイドフラップと、
前記サイドフラップに設けられたファスニングテープと、を備え、
前記吸収コアの前記前後方向の全長を3等分した前側域、股下域及び後側域を有し、
前記股下域における前記サイドフラップの前記幅方向の長さは、30mm以上である吸収性物品であって、
前記股下域は、中央領域と、前記中央領域よりも前記幅方向の外側に位置するサイド領域と、を有し、
前記中央領域の外側縁には、周囲よりも前記吸収材料の坪量が低い一対の低坪量部が前記前後方向に沿って設けられており、
前記中央領域には、前記中央領域が前記サイド領域よりも着用者側に突出した凸形状に前記股下域の前記吸収コアが変形するように、前記前後方向に伸縮する中央弾性部材が設けられている、吸収性物品。 - 前記中央弾性部材は、前記幅方向において、前記中央領域の中心と前記中央領域の外側縁との中心よりも外側に配置されている、請求項2又は請求項3に記載の吸収性物品。
- 前記中央弾性部材は、前記低坪量部に重なって配置されている、請求項2から請求項4のいずれか1項に記載の吸収性物品。
- 前記中央弾性部材は、前記中央領域の前記幅方向の中心と重ならない位置において、前記幅方向に離れて一対で配置されている、請求項2から請求項5のいずれか1項に記載の吸収性物品。
- 前記中央弾性部材は、前記吸収コアの非肌対向面側に配置されている、請求項2から請求項6のいずれか1項に記載の吸収性物品。
- 前記中央弾性部材は、前記サイド領域の前記吸収コアに重ならない領域に配置されている、請求項2から請求項7のいずれか1項に記載の吸収性物品。
- 前記中央弾性部材は、前記吸収性物品を前記前後方向に二つに折った折り目を跨いで配置され、
前記中央弾性部材の前記前後方向の中心は、前記吸収性物品の前記前後方向の中心よりも後方に位置する、請求項2から請求項8のいずれか1項に記載の吸収性物品。 - 前記中央弾性部材の後端縁は、前記吸収性物品の後端縁から前記吸収性物品の前記前後方向の全長に対する1/3までの領域よりも前側に位置する、請求項2から請求項9のいずれか1項に記載の吸収性物品。
- 前記中央弾性部材の後端縁は、前記低坪量部の後端縁よりも前側に位置する、請求項2から請求項10のいずれか1項に記載の吸収性物品。
- 前記低坪量部間の距離は、前記吸収コアの前記幅方向の最大長さに対する1/2以下である、請求項1から請求項11のいずれか1項に記載の吸収性物品。
- 前記低坪量部間の距離は、前記股下域における前記吸収コアの前記幅方向の最小長さに対する1/2以下である、請求項1から請求項11のいずれか1項に記載の吸収性物品。
- 前記中央領域の前記幅方向の曲げ剛性は、前記サイド領域の前記幅方向の曲げ剛性よりも高い、請求項1から請求項13のいずれか1項に記載の吸収性物品。
- 前記中央領域には、少なくとも前記吸収コアを圧搾した圧搾部が形成されている、請求項14に記載の吸収性物品。
- 前記圧搾部は、前記低坪量部間に配置されている、請求項15に記載の吸収性物品。
- 前記中央領域には、前記前後方向に伸縮する中央弾性部材が配置されており、
前記中央弾性部材は、前記圧搾部よりも前記幅方向の外側に配意されている、請求項15又は請求項16に記載の吸収性物品。
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BR112020013832-0A BR112020013832A2 (pt) | 2018-01-29 | 2018-01-30 | artigo absorvente |
EP18902853.3A EP3738561B1 (en) | 2018-01-29 | 2018-01-30 | Absorbent article |
MYPI2020003372A MY193374A (en) | 2018-01-29 | 2018-01-30 | Absorbent article |
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