WO2020255526A1 - Article absorbant - Google Patents

Article absorbant Download PDF

Info

Publication number
WO2020255526A1
WO2020255526A1 PCT/JP2020/014220 JP2020014220W WO2020255526A1 WO 2020255526 A1 WO2020255526 A1 WO 2020255526A1 JP 2020014220 W JP2020014220 W JP 2020014220W WO 2020255526 A1 WO2020255526 A1 WO 2020255526A1
Authority
WO
WIPO (PCT)
Prior art keywords
region
longitudinal direction
elastic
absorbent article
width direction
Prior art date
Application number
PCT/JP2020/014220
Other languages
English (en)
Japanese (ja)
Inventor
貴仁 永井
麻衣子 下津
健人 梨子木
Original Assignee
ユニ・チャーム株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ユニ・チャーム株式会社 filed Critical ユニ・チャーム株式会社
Publication of WO2020255526A1 publication Critical patent/WO2020255526A1/fr

Links

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
    • A61F13/496—Absorbent articles specially adapted to be worn around the waist, e.g. diapers in the form of pants or briefs
    • 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
    • A61F13/45—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
    • A61F13/45—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
    • A61F13/49406—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 at the crotch region
    • A61F13/49413—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 at the crotch region the edge leakage prevention means being an upstanding barrier
    • A61F13/49426—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 at the crotch region the edge leakage prevention means being an upstanding barrier the barrier having an absorbent medium
    • 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
    • A61F13/51—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
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from 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
    • A61F13/51—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
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • A61F13/51456—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its properties
    • 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
    • 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
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
    • A61F5/44—Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Portable urination aids; Colostomy devices

Definitions

  • the present invention relates to an absorbent article.
  • an absorbent article such as a disposable diaper
  • an absorbent article in which a central elastic member such as a rubber thread that expands and contracts in the longitudinal direction of the absorbent article is extended in the central portion in the width direction of the absorbent article Is known (see, for example, Patent Document 1).
  • the portion that crosses the absorber In the above-mentioned absorbent article, of the elastic members that are curved in the inseam region from both side ends of the waist circumference region in the width direction and cross the absorber along the width direction of the absorbent article, the portion that crosses the absorber.
  • the stretch stress By making the stretch stress smaller than the stretch stress of the central elastic member, the fit of the crotch portion is improved and leakage is prevented.
  • the stress of the elastic member crossing the absorber is weak, the fit of the buttocks may be lowered, and the comfort may be deteriorated.
  • the present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to improve at least the fit of the lower abdomen or the buttocks while maintaining the fit of the crotch portion by the central elastic member. At the same time, it is an object of the present invention to provide an absorbent article that improves the appearance (appearance) when worn.
  • the main invention for achieving the above object is An exterior body having a longitudinal direction, a width direction, and a thickness direction intersecting each other in an expanded state and an extended state, and having a waist circumference region and an inseam region, and at least in the inseam region, the skin of the exterior body in the thickness direction.
  • An absorbent article including an absorbent body having an absorbent body provided on the side, wherein the waistline region includes a front waistline region located on one end side of the absorbent body in the longitudinal direction and the absorbent body.
  • It has a rear waist circumference region located on the other end side in the longitudinal direction, and the front waist circumference region and the rear waist circumference region are a pair of side ends of the front waist circumference region and a pair of side ends of the rear waist circumference region.
  • Each has a joint portion for joining the portions, and is provided on the non-skin side in the thickness direction of the absorber, and is provided at the central portion in the width direction of the absorbent article along the longitudinal direction of the absorber.
  • It has a first elastic region arranged therein, and is inside the joint portion in the longitudinal direction and absorbable from at least one of the joint portion of the front waist circumference region and the joint portion of the rear waist circumference region.
  • the article has a second elastic region arranged along the width direction, and the first elastic region and its extension region are the first stress region and the second elastic region. And when the extension region thereof is a second stress region, in the intersection region where the first stress region and the second stress region intersect, the length of the intersection region in the width direction is the said of the intersection region. It is an absorbent article characterized by being shorter than the length in the longitudinal direction.
  • an absorbent article that improves the fit of at least the lower abdomen or the buttocks while maintaining the fit of the crotch portion by the central elastic member, and also improves the appearance (appearance) when worn.
  • FIG. 5 is a schematic plan view of the unfolded and stretched diaper 1 according to the first embodiment as viewed from the skin side.
  • FIG. 2 is a schematic cross-sectional view taken along the line AA in FIG.
  • FIG. 2 is a schematic cross-sectional view taken along the line BB in FIG.
  • FIG. 5A is an enlarged view of the intersection region 150 according to the first embodiment
  • FIG. 5B is a diagram showing an extended state of the intersection region 150 of FIG. 5A.
  • FIG. 6A is an enlarged view of an example of the intersection region 150
  • FIG. 6B is a diagram showing an extended state of the intersection region 150 of FIG. 6A.
  • FIG. 7A is an enlarged view of an example of the intersection region 150 according to the first embodiment
  • FIG. 7B is a diagram showing an extended state of the intersection region 150 of FIG. 7A
  • FIG. 8A is an enlarged view of another example of the intersection region 150
  • FIG. 8B is a diagram showing an extended state of the intersection region 150 of FIG. 8A.
  • FIG. 5 is a schematic plan view of the unfolded and stretched diaper 1 according to the second embodiment as viewed from the skin side.
  • An exterior body having a longitudinal direction, a width direction, and a thickness direction intersecting each other in an expanded state and an extended state, and having a waist circumference region and an inseam region, and at least in the inseam region, the skin of the exterior body in the thickness direction
  • An absorbent article including an absorbent body having an absorbent body provided on the side, wherein the waistline region includes a front waistline region located on one end side of the absorbent body in the longitudinal direction and the absorbent body.
  • It has a rear waist circumference region located on the other end side in the longitudinal direction of the above, and the front waist circumference region and the rear waist circumference region are a pair of side ends of the front waist circumference region and a pair of side ends of the rear waist circumference region.
  • Each has a joint portion for joining the portions, and is provided on the non-skin side in the thickness direction of the absorber, and is provided at the central portion in the width direction of the absorbent article along the longitudinal direction of the absorber.
  • It has a first elastic region arranged therein, and is inside the joint portion in the longitudinal direction and absorbable from at least one of the joint portion of the front waist circumference region and the joint portion of the rear waist circumference region.
  • the article has a second elastic region arranged along the width direction, and the first elastic region and its extension region are the first stress region and the second elastic region. And when the extension region thereof is a second stress region, in the intersection region where the first stress region and the second stress region intersect, the length of the intersection region in the width direction is the said of the intersection region. It is an absorbent article characterized by being shorter than the length in the longitudinal direction.
  • the first elastic region is a region in which a tensile force acts in the longitudinal direction of the absorbent article, and in the extended state, the first elastic region and its extension region also similarly. Longitudinal tensile force acts.
  • the second elastic region is a region in which a tensile force acts in the width direction, and in the extended state, a tensile force in the width direction also acts in the second elastic region and its extension region. In such an intersecting region where the first stress region and the second stress region intersect, a tensile force outward in the longitudinal direction and a tensile force outward in the width direction act at the time of mounting.
  • the length in the width direction of the intersection region (that is, the length in the width direction of the first elastic region or its extension region) is the length in the longitudinal direction of the intersection region (that is, the length in the longitudinal direction of the second elastic region). If it is longer than), a force outward in the width direction is likely to be applied to the intersection region, but the force is dispersed and it is difficult to apply the force to the central portion of the intersection region. However, if the length in the width direction of the intersection region is shorter than the length in the longitudinal direction, the force outward in the width direction tends to act up to the central portion of the intersection region.
  • the fit of the second elastic region can be improved while maintaining the fit of the crotch portion due to the expansion and contraction of the first elastic region, and the movement becomes easier. Further, since the force acts on the central part of the crossing area, the crossing area does not bump and the appearance at the time of mounting is improved. Further, even in the intersection region between the extension regions where the first elastic region and the second elastic region do not intersect, as described above, the tensile force in the longitudinal direction acting on the extension region of the first elastic region and the second elasticity A similar effect can be obtained by the tensile force in the width direction acting on the extension region of the region.
  • the first elastic region of the absorbent article overlaps at least one of the front waist circumference region and the rear waist circumference region when viewed in the thickness direction.
  • the first elastic region for pulling up the crotch portion extends to the waist circumference region, so that the entire crotch portion is pulled up and the fit is improved.
  • pulling up the crotch part it becomes easier to eliminate the looseness of the absorbent body, and the appearance (appearance) when worn is also improved.
  • the second elastic region is provided so as to cover the entire width direction of the absorber, and the second elastic region and the first elastic region intersect with each other. desirable.
  • the second elastic region makes it easier for a force in the width direction to act on the absorber, and the fit of the second elastic region can be maintained. Further, when the second elastic region and the first elastic region intersect, the pulling force of the first elastic region is applied to the second elastic region, and the first elastic region and the second elastic region are interlocked to pull up the crotch part. Improve sex. As a result, the ease of movement is improved, and the appearance (appearance) at the time of wearing is also improved.
  • the absorbent article is provided with one or more flexible shafts along the longitudinal direction of the absorber.
  • the absorber tends to bend along the flexible shaft at the time of mounting, and the absorbent body becomes uneven, so that the fit to the crotch portion is improved.
  • the crotch part becomes neat and easy to move. By keeping the crotch area clean, the appearance (appearance) when worn is also improved.
  • the absorbent article is provided with a pair of flexible shafts along the longitudinal direction of the absorber.
  • the absorber when the absorbent article is attached, the absorber is more likely to bend along the pair of flexible shafts, and unevenness can be formed on the absorber.
  • the fit of the crotch part is improved, and the crotch part becomes neat and easy to move.
  • the fit makes it difficult for the crotch part to loosen, and the appearance (appearance) when worn is also good.
  • a central flexible shaft is provided along the longitudinal direction at the central portion of the absorber in the width direction, and the absorber is outside the width direction of the absorber with respect to the central flexible shaft. It is desirable that a pair of side flexible shafts are provided along the longitudinal direction.
  • the absorber when the absorbent article is attached, the absorber is more likely to bend along the central flexible shaft and the pair of side flexible shafts, and the absorber is more likely to have irregularities. By making it easier to bend in this way, it fits better in the crotch area and becomes easier to move. In addition, the crotch part is less likely to be loose, and the appearance (appearance) when worn is further improved.
  • a central flexible shaft is provided along the longitudinal direction at the central portion of the absorber in the width direction, and the central flexible shaft and the first elastic region are at least a part thereof. Is desirable to overlap in the thickness direction.
  • the central flexible shaft makes it easier for the absorber to bend along the flexible shaft when mounted, so that it is easier to fit in the crotch portion. Further, since the absorbent article expands and contracts in the longitudinal direction due to the first elastic region, the first elastic region and the central flexible shaft overlap each other in the thickness direction, so that the fit of the crotch portion is further improved. In addition, due to such an improvement in fit, the crotch portion is less likely to loosen, and the appearance when worn is also good.
  • Such an absorbent article has the second elastic region inside the joint portion of the rear waist circumference region in the longitudinal direction and outside the center line in the longitudinal direction of the absorbent article.
  • a third elastic region arranged along the width direction is provided at the inner end portion of the front waist circumference region in the longitudinal direction, and the first elastic region is outside the second elastic region in the longitudinal direction.
  • the first elastic region extends outward by a predetermined length from the end, and the first elastic region is arranged inside the longitudinal direction with respect to the outer end of the third elastic region in the longitudinal direction, or said. It is desirable that the third elastic region extends outward in the longitudinal direction by a length shorter than the predetermined length from the outer end in the longitudinal direction.
  • the first elastic region and the second elastic region intersect, and the first elastic region extends outward in the longitudinal direction, so that the first elastic region And the second elastic region work together to make it easier to pull up the crotch part and improve the fit of the buttocks.
  • the anterior girth region has less unevenness in body shape than the buttocks side, the length of the first elastic region in the longitudinal direction is shortened to reduce the pulling force and widen the absorption region when urinating. Can be formed.
  • Such an absorbent article has the second elastic region inside the joint portion of the rear waist circumference region in the longitudinal direction and outside the center line in the longitudinal direction of the absorbent article.
  • the rear waist circumference region has another elastic region arranged along the width direction outside the second elastic region in the longitudinal direction, and in the longitudinal direction, the other elastic region and the said.
  • the joints overlap, and it is desirable that one end of the first elastic region in the longitudinal direction be located inside the longitudinal direction of the inner end of the other elastic region in the longitudinal direction.
  • the other elastic region described above is a region for fitting the wearer's girth, further above the defecation position. If the first elastic member that improves the fit of the crotch portion exists up to that region, the absorbent article may come into excessive contact with the skin, causing a sense of discomfort.
  • FIG. 1 is a schematic perspective view of the pants-type disposable diaper 1 according to the first embodiment.
  • FIG. 2 is a schematic plan view of the unfolded and stretched diaper 1 according to the first embodiment as viewed from the skin side.
  • FIG. 3 is a schematic cross-sectional view taken along the line AA in FIG.
  • FIG. 4 is a schematic cross-sectional view taken along the line BB in FIG.
  • the diaper 1 has a "vertical direction”, a “width direction” orthogonal to the vertical direction, and a “front-back direction” orthogonal to the vertical direction and the width direction in the pants-shaped state when worn as shown in FIG. doing.
  • the upper side corresponds to the waist opening side of the wearer
  • the lower side corresponds to the inseam side of the wearer.
  • the front side corresponds to the ventral side of the wearer
  • the rear side corresponds to the back side of the wearer.
  • the diaper 1 In the unfolded and stretched state shown in FIG. 2, the diaper 1 has a longitudinal direction, a width direction, and a thickness direction (direction penetrating the paper surface in FIG. 2) as three directions orthogonal to each other.
  • the longitudinal direction is along the above-mentioned vertical direction.
  • one side in the longitudinal direction corresponds to the ventral side (anterior side), and the other side corresponds to the dorsal side (rear side).
  • the outer side in the longitudinal direction corresponds to the upper side in the vertical direction (girth opening side)
  • the inner side in the longitudinal direction corresponds to the lower side in the vertical direction (inseam side).
  • the vertical direction may be used instead of the longitudinal direction even in this expanded state.
  • the width direction is synonymous with the width direction in the above-mentioned pants type state.
  • one side corresponds to the skin side in contact with the wearer's body, and the other side corresponds to the non-skin side on the opposite side (see FIG. 3).
  • the “deployed state” means that the diaper 1 in the pants-shaped state shown in FIG. 1 is separated into the front waist area 11F and the rear waist area 11R, which will be described later, by breaking the joints on both sides in the width direction, and the diaper 1 is separated. By opening in the vertical direction, the diaper 1 is unfolded on a flat surface.
  • the “stretched state” is a state in which the product (diaper 1) is stretched without wrinkles, specifically, each member (for example, the exterior body 10 and the absorbent body 20 described later) constituting the diaper 1. It refers to a state in which the dimensions are extended until the dimensions match or are close to the dimensions of the individual member.
  • the diaper 1 has an exterior body 10 and an absorbent main body 20 that absorbs excrement such as urine.
  • the exterior body 10 has a waist circumference area 11 located around the wearer's waist and an inseam area 12 located at the wearer's inseam. Further, the waist circumference region 11 has a front waist circumference region 11F that covers the ventral side of the wearer and a rear waist circumference region 11R that covers the back side of the wearer. As shown in FIG. 2, the upper end and the side end of the front waist circumference region 11F are the upper end and the side end of the sheet forming the outer shape of the exterior body 10 on the ventral side (here, the front side exterior back sheet 120F described later), and the lower end. Is the position of the line UL1 connecting the intersections of the ventral exterior body 10 and the absorbent body 20.
  • the front waist circumference region 11F is a region surrounded by the upper end, the side end, the curved or straight portion connecting the lower end of the side end to the line UL1, and the above-mentioned lower end.
  • the upper end and the side end of the rear waist circumference region 11R are the upper end and the side end of the sheet forming the outer shape of the exterior body 10 on the back side (here, the rear side exterior back sheet 120R described later), and the lower end is the dorsal exterior. This is the position of the line UL2 connecting the intersections of the body 10 and the absorbent body 20.
  • the rear waist circumference region 11R is a region surrounded by the upper end, the side end, the curved or straight portion connecting the lower end of the side end to the line UL2, and the above-mentioned lower end.
  • the inseam region 12 is a region interposed between the front waist circumference region 11F and the rear waist circumference region 11R.
  • the front waist circumference region 11F is located on one end side of the absorbent body 20 in the longitudinal direction
  • the rear waist circumference region 11R is located on the other end side of the absorbent body 20 in the longitudinal direction.
  • the front waist circumference region 11F and the rear waist circumference region 11R are joint portions 13FR that join the pair of side end portions 13F of the front waist circumference region 11F and the pair of side end portions 13R of the rear waist circumference region 11R.
  • the joint portion 13FR forms a pants-type disposable diaper 1.
  • the exterior body 10 includes an exterior top sheet 110, a front exterior back sheet 120F, a rear exterior back sheet 120R, a front waist elastic member 130F, and a rear waist elastic member 130R. It has an elastic member 140 around the hind legs.
  • the exterior top sheet 110 is arranged from the front waist circumference area 11F to the rear waist circumference region 11R via the inseam region 12 (FIG. 3).
  • the width (length in the width direction) of the exterior top sheet 110 in the front waist circumference region 11F and the rear waist circumference region 11R is larger than the width (length in the width direction) of the exterior top sheet 110 in the inseam region 12 (FIG. 2).
  • the exterior top sheet 110 can be formed of an air-through non-woven fabric, a spunbonded non-woven fabric, an SMS non-woven fabric (spunbond, meltblown, spunbonded non-woven fabric), a waterproof film, or the like.
  • the front exterior back sheet 120F is provided on the non-skin side of the exterior top sheet 110 in the front waist circumference region 11F.
  • the outer end (upper end) of the front exterior backsheet 120F in the longitudinal direction is folded back toward the skin.
  • the folded portion of the front exterior back sheet 120F wraps one end (outer end) of the exterior top sheet 110 in the longitudinal direction.
  • the outer end (upper end) of the front exterior back sheet 120F in the longitudinal direction may not be folded back.
  • the rear exterior back sheet 120R is provided on the non-skin side of the exterior top sheet 110 in the rear waist circumference region 11R.
  • the outer end (upper end) of the rear exterior backsheet 120R in the longitudinal direction is folded back toward the skin.
  • the folded portion of the rear exterior back sheet 120R wraps the other end (outer end) of the exterior top sheet 110 in the longitudinal direction.
  • the outer end (upper end) of the front exterior back sheet 120F in the longitudinal direction may not be folded back.
  • the front exterior back sheet 120F and the rear exterior back sheet 120R can be formed of an air-through non-woven fabric, a spunbonded non-woven fabric, an SMS non-woven fabric (spunbond, meltblown, spunbonded non-woven fabric) or the like.
  • the front waist circumference elastic member 130F is provided between the exterior top sheet 110 and the front side exterior back sheet 120F in the front waist circumference region 11F (see FIG. 3).
  • the front waistline elastic member 130F is, for example, a plurality of rubber threads.
  • the front waist circumference elastic member 130F is joined and fixed by an adhesive such as a hot melt adhesive along the same direction while extending in the width direction.
  • the front waist circumference elastic member 130F imparts elasticity in the width direction to the front waist circumference region 11F.
  • the rear waist circumference elastic member 130R is provided between the exterior top sheet 110 and the rear exterior back sheet 120R in the rear waist circumference region 11R (see FIG. 3).
  • the rear waist circumference elastic member 130R is, for example, a plurality of rubber threads.
  • the rear waist circumference elastic member 130R is joined and fixed by an adhesive such as a hot melt adhesive along the same direction while extending in the width direction.
  • the rear waist circumference elastic member 130R imparts elasticity in the width direction to the rear waist circumference region 11R.
  • the rear leg circumference elastic member 140 is provided between the exterior top sheet 110 and the rear exterior back sheet 120R. As shown in FIG. 2, the rear leg circumference elastic member 140 is curved diagonally downward from both side ends 13R of the rear waist circumference region 11R in the width direction toward the inside in the longitudinal direction and the inside in the width direction of the rear waist circumference region 11R. It has a curved portion 140c arranged in the width direction and a straight portion 140s arranged along the width direction in the central portion in the width direction.
  • the hind leg elastic member 140 may be, for example, a plurality of rubber threads, a strip-shaped elastic sheet having elasticity, or the like. The elastic member 140 around the hind legs is joined and fixed by an adhesive such as a hot melt adhesive in an elongated state.
  • the front waist circumference region 11F may also be provided with the same elastic member as the rear leg circumference elastic member 140 of the rear waist circumference region 11R.
  • the absorbent body 20 is provided on the skin side of the exterior body 10 (see FIG. 3). Further, as shown in FIG. 4, the absorbent main body 20 includes a liquid absorbent absorber (absorbent core) 21, a core wrap sheet 22 that covers the outer peripheral surface of the absorbent body 21, a top sheet 23, and a film. It has a sheet 24 and a back sheet 25.
  • a liquid absorbent absorber absorbent core
  • a core wrap sheet 22 that covers the outer peripheral surface of the absorbent body 21, a top sheet 23, and a film. It has a sheet 24 and a back sheet 25.
  • the absorber 21 is provided on the skin side of the exterior body 10 in the thickness direction at least in the inseam region 12. Further, the absorber 21 is a member formed by laminating a liquid-absorbing material, and can absorb excrement such as urine. As the liquid absorbent material, for example, a liquid absorbent fiber such as pulp fiber, a highly absorbent polymer or the like can be used. Further, the shape of the absorber 21 is not limited to the shape extending along the longitudinal direction and having a portion confined inward in the width direction as shown in FIG. 2, for example, a substantially rectangular shape in a plan view and the like. But it's okay.
  • core wrap sheet 25 examples include tissue paper and non-woven fabric. However, these core wrap sheets 25 are not indispensable configurations.
  • the top sheet 23 is a sheet that forms a skin contact surface that can come into direct contact with the wearer's skin, and is, for example, a flat-sized liquid-permeable non-woven fabric that is larger than the absorber 21.
  • the film sheet 24 is a sheet-like member that covers the absorber 21 from the non-skin side, and is a flat-sized sheet that is larger than the absorber 21.
  • An example of the film sheet 24 is a liquid-impermeable leak-proof sheet such as polyethylene or polypropylene.
  • the back sheet 25 is a liquid-impermeable sheet that covers the absorber 21 from the non-skin side.
  • the width direction dimension of the back sheet 25 is sufficiently larger than that of the film sheet 24, and the positions where both ends in the width direction form the width direction end portions 20e of the absorbent body 20.
  • As the folding position it is folded back to the center side (inside) in the width direction. Further, when the film sheet 25 is folded back, the back sheet 25 is folded back so as to sandwich both ends of the film sheet 24 in the width direction.
  • a leg elastic member 26 such as a rubber thread is fixed in the vicinity of the folded position in a state of being extended in the longitudinal direction, thereby imparting elasticity to the leg circumference.
  • the diaper 1 has a central elastic member 30 such as a plurality of rubber threads arranged along the longitudinal direction of the absorber 21 at the central portion in the width direction of the diaper 1.
  • the central elastic member 30 is provided on the non-skin side in the thickness direction of the absorber 21, and is provided between the film sheet 24 and the back sheet 25 in the first embodiment.
  • two central elastic members 30 are provided, but the number is not limited to this, and the number may be singular or plural.
  • the central elastic member 30 is not limited to rubber thread or the like, and may be, for example, a strip-shaped elastic sheet having elasticity.
  • a portion of the central elastic member 30 that exhibits elasticity is shown by a thick solid line.
  • the region formed along the longitudinal direction by these two central elastic members 30 is designated as the first elastic region Y (the portion indicated by the diagonal line downward to the left).
  • the length in the width direction between the outermost elastic members in the width direction is defined as the length in the width direction of the first elastic region Y.
  • the length of the first elastic region Y in the longitudinal direction is the length of the effective length of the central elastic member 30 described above.
  • the elastic member is singular or has a sheet shape
  • the length in the width direction of each elastic member or sheet is the length in the width direction of the first elastic region Y, and the effective length of each elastic member or sheet. Is the length of the first elastic region Y in the longitudinal direction.
  • the first elastic region Y formed by the central elastic member 30 imparts elasticity in the longitudinal direction to the diaper 1, making it easier for the crotch portion to be pulled up. As a result, the fit of the crotch portion is improved.
  • the first elastic region Y overlaps at least one of the front waist circumference region 11F and the rear waist circumference region 11R when viewed in the thickness direction.
  • the first elastic region Y overlaps the rear waist circumference region 11R in the thickness direction.
  • the first elastic region Y intersects the straight portion 140s of the rear leg circumference elastic member 140 in the rear waist circumference region 11R.
  • the region from the outermost elastic member in the longitudinal direction (uppermost in the vertical direction) forming the straight portion 140s to the innermost elastic member in the longitudinal direction (lowermost in the vertical direction) is referred to as the second elastic region X.
  • the second elastic region X is inside the joint portion 13FR of the rear waist circumference region 11R in the longitudinal direction and is centered in the longitudinal direction of the diaper 1. It is a region arranged along the width direction on the outside of the line CL.
  • the first elastic region Y composed of the central elastic member 30 and the second elastic region X intersect with each other.
  • the straight portion 140s is formed of a strip-shaped elastic sheet having elasticity
  • the region of the elastic sheet joined as the straight portion 140s is the second elastic region X.
  • the second elastic region X is provided so as to cover the entire width direction of the absorber 21.
  • the second elastic region X makes it easier for a force in the width direction to act on the absorber 21, and the fit of the second elastic region X (that is, the fit of the buttocks here) can be maintained.
  • the pulling force of the first elastic region Y is applied to the second elastic region X, and the first elastic region Y and the second elastic region X are interlocked with each other. This improves the pullability of the inseam region 12. As a result, the ease of movement is improved, and the appearance (appearance) at the time of wearing is also improved.
  • the second elastic region X is formed in the rear waist circumference region 11R, but the present invention is not limited to this. That is, the second elastic region X is inside the joint portion 13FR of at least one of the joint portion 13FR of the front waist circumference region 11F and the joint portion 13FR of the rear waist circumference region 11R, and is in the longitudinal direction of the diaper 1. It suffices if it is arranged along the width direction on the outside of the center line CL. With such a configuration, the fit of the second elastic region X is improved by the tensile force in the width direction of the second elastic region X. Therefore, for example, when it is formed in the front waist circumference region 11F, the lower abdomen When the area around the buttock fits without bumping and is formed in the rear waist circumference region 11R, the fit of the buttocks can be improved.
  • the second elastic region X is provided so as to cover the entire width direction of the absorber 21, but is not limited to this.
  • the second elastic region X may be provided so as to cross a part of the absorber 21 in the width direction, or may be cut intermittently or the like. The details will be described later.
  • FIG. 5A is an enlarged view of the intersection region 150 according to the first embodiment
  • FIG. 5B is a diagram showing an extended state of the intersection region 150 of FIG. 5A
  • FIG. 6A is an enlarged view of an example of the intersection region 150
  • FIG. 6B is a diagram showing an extended state of the intersection region 150 of FIG. 6A
  • FIG. 7A is an enlarged view of an example of the intersection region 150 according to the first embodiment
  • FIG. 7B is a diagram showing an extended state of the intersection region 150 of FIG. 7A
  • FIG. 8A is an enlarged view of another example of the intersection region 150
  • FIG. 8B is a diagram showing an extended state of the intersection region 150 of FIG. 8A.
  • the first elastic region Y is a region that imparts elasticity in the longitudinal direction to the diaper 1
  • the second elastic region X is a region that imparts elasticity in the width direction.
  • Draw three lines of a predetermined thickness such as markers along the longitudinal direction and five lines along the width direction on the non-skin side surface so as to form a grid with a width of 5 mm, and draw the intersection area 150 on the non-skin side. The state seen from the above is shown in FIG. 5A.
  • the length in the width direction (the length in the width direction of the first elastic region Y) L1 is the length in the longitudinal direction (the length in the longitudinal direction of the second elastic region X). ) It is shorter than L2 (L1 ⁇ L2).
  • the intersection region 150 shown in FIG. 6A is different from the first embodiment, and is an example in which the length L1 in the width direction of the intersection region 150 is longer than the length L2 in the longitudinal direction (L1> L2). Then, similarly, on the non-skin side surface of such an intersection region 150, five lines having a predetermined thickness such as a marker are formed along the longitudinal direction so as to form a grid having a width of 5 mm, along the width direction. I'm pulling three.
  • a tensile force acts on the intersecting region 150 in the longitudinal direction (vertical direction) by the first elastic region Y, and Due to the second elastic region X, a tensile force also acts in the width direction.
  • the two lines on the outside in the width direction are deformed so that the line width extends in the width direction and extends outward in the width direction.
  • the center line is not deformed, but the line width extends in the width direction. That is, in the intersection region 150 in which the length L1 in the width direction is shorter than the length L2 in the longitudinal direction, a tensile force in the width direction acts even on the central portion.
  • FIG. 6B also shows the extended state of the crossing region 150, and in the crossing region 150 in which the length L1 in the width direction is longer than the length L2 in the longitudinal direction, five lines similarly extending along the longitudinal direction.
  • the line width expands in the width direction toward the outside in the width direction and is deformed so as to expand outward in the width direction, but the center line does not show any deformation or expansion of the line width. .. That is, it is difficult for the tensile force in the width direction to act up to the central portion of the intersection region 150.
  • the intersection area 150 shown in FIG. 7A has the following configuration.
  • the first elastic region Y of the diaper 1 of the first embodiment does not extend to the intersection region 150, but the extension region Y', which is an extension region of the first elastic region Y, intersects.
  • the second elastic region X exists outside the intersection region 150 in the width direction
  • the extension region X' which is an extension region of the second elastic region X, intersects at the intersection region 150.
  • three lines having a predetermined thickness are drawn in such an intersection region 150 along the longitudinal direction and five lines along the width direction.
  • the first elastic region Y and the second elastic region X that intersected in the intersection region 150 shown in FIG. 6A do not extend to the intersection region 150, respectively, and the first elastic region Y
  • the two lines on the outside in the width direction are lines. It is deformed so that the width expands in the width direction and expands outward in the width direction.
  • the center line is not deformed, but the line width extends in the width direction.
  • the line width increases in the width direction toward the outside in the width direction. It spreads to the outside and is deformed to the outside in the width direction, but the center line does not show any deformation or widening of the line width. That is, it is an intersection region 150 in which the extension region Y'and the extension region X'intersect each other, and the length L1 in the width direction of the intersection region 150 is longer than the length L2 in the longitudinal direction (L1> L2). ), It can be seen that although tensile forces in the longitudinal direction and the width direction act on the intersection region 150, it is difficult to apply the force to the central portion of the intersection region 150.
  • the relationship between the lateral and longitudinal lateral tensile forces of the intersection 150 where the 1 stress region and the 2nd stress region intersect and the width and longitudinal lengths of the intersection 150 are as follows.
  • the length L1 in the width direction of the intersection region 150 (that is, the length in the width direction of the first elastic region Y or its extension region Y') is in the longitudinal direction of the intersection region 150. If it is longer than the length L2 (that is, the length in the longitudinal direction of the second elastic region X) (L1> L2), a force is likely to be applied to the outside of the intersection region 150 in the width direction, but the force is dispersed and the central portion. It becomes difficult to get rid of. As a result, the central portion of the intersection region 150 may be difficult to fit on the wearer's body, and the central portion may become loose.
  • the central flexible shaft 50 is provided in the central portion in the width direction of the absorber 21 along the longitudinal direction, and is more than the central flexible shaft 50.
  • a pair of side flexible shafts 55 are provided along the longitudinal direction on the outer side of the absorber 21 in the width direction. Further, the central flexible shaft 50 and the pair of side flexible shafts 55 are provided only in the region where the absorber 21 exists.
  • the central flexible shaft 50 and the pair of side flexible shafts 55 make it easy for the absorbent main body 20 to bend at the portion where the flexible shafts are provided.
  • a method of forming the flexible shaft 1) a method of forming a notch such as a slit or a narrow missing portion in the absorber and using them as the flexible shaft, and 2) forming an embossed groove in the absorber.
  • a portion in which the constituent materials are reduced or a portion in which the constituent materials are not laminated is formed in a continuous line or an intermittent line on the absorber, and the portion can be formed.
  • An example of a method of using a flexible shaft can be exemplified.
  • the central flexible shaft 50 and the pair of side flexible shafts 55 in the first embodiment are portions formed in the absorber 21 so that the constituent materials are not laminated.
  • the central flexible shaft 50 and the pair of side flexible shafts 55 make it easier for the absorber 21 to bend along the central flexible shaft 50 and the pair of side flexible shafts 55 when mounted, so that the absorber 21 can be bent. Unevenness is likely to occur. As a result, not only the diaper 1 fits in the crotch portion and becomes easy to move, but also the appearance (appearance) in the worn state is further improved.
  • the central flexible shaft 50 and the first elastic region Y are overlapped when viewed in the thickness direction.
  • the central flexible shaft 50 makes it easier for the absorber 21 to bend along the flexible shaft 50 when mounted, and makes it easier to fit in the crotch portion.
  • the diaper 1 expands and contracts in the longitudinal direction due to the first elastic region Y, the first elastic region Y and the central flexible shaft 50 overlap each other in the thickness direction, so that the fit of the crotch portion is further improved. To do. Due to such an improvement in fit, the wearer becomes more mobile and the appearance (appearance) in the worn state is also improved.
  • the absorber 21 is provided with the central flexible shaft 50 and the pair of side flexible shafts 55, but the arrangement and number of the central flexible shaft 50 and the pair of side flexible shafts 55 are provided. Is not limited to these, and one or more flexible shafts may be provided along the longitudinal direction of the absorber 21.
  • a pair of flexible shafts may be provided along the longitudinal direction of the absorber 21.
  • the flexible shaft is for making it easy for the absorber 21 to bend along the flexible shaft when the diaper 1 is worn, and the position and number of flexible shafts depend on the person wearing the diaper, the size of the diaper, and the like. Can be changed.
  • By providing such a flexible shaft not only the fit of the crotch portion is improved and it becomes easy to move, but also the crotch portion does not become loose and the appearance (appearance) at the time of wearing is improved.
  • the plurality of rear waist elastic members 130R provided in the rear waist region 11R are different from the second elastic region X in the width direction outside the second elastic region X in the longitudinal direction. It is another elastic region arranged along the (referred to as elastic region 130Ra). Further, the elastic region 130Ra overlaps with the joint portion 13FR in the longitudinal direction.
  • the one end Yer in the longitudinal direction of the first elastic region Y in the rear waist circumference region 11R is arranged inside the inner end 130Ran in the longitudinal direction of the elastic region 130Ra in the longitudinal direction.
  • the elastic region 130Ra described above is a region for fitting the wearer's waist circumference, and is further above the defecation position.
  • the diaper 1 may come into excessive contact with the skin, causing a sense of discomfort. Therefore, by arranging the outer end Yer in the longitudinal direction of the first elastic region Y at a position that does not reach the elastic region 130Ra, an appropriate fit can be provided.
  • FIG. 9 is a diagram illustrating a modification 1 according to the first embodiment.
  • the difference from the first embodiment described above is that a part of the rear waist circumference region 11R is cut from the non-skin side surface to provide a notch 60.
  • the elastic member 140 around the hind legs (straight line portion 140s) is also cut in the portion where the notch 60 exists.
  • the elastic members 140 around the rear legs are provided on the outer sides of the notches 60 on both sides in the width direction.
  • the region where the notch 60 exists is, as illustrated in FIG.
  • an extension region X' where a tensile force in the width direction of the straight portion 140s, which is the second elastic region X, acts, and therefore, the intersection region 150 in FIG. Is a region where the first elastic region Y and the extension region X'intersect.
  • the length L1 in the width direction of the intersection region 150 is the length L2 in the longitudinal direction (in the partially enlarged view of FIG. 9, the extension line of each hind leg elastic member 140 of the straight portion 140s). Is shown by a two-dot chain line and is shorter than the length L2) between the upper and lower ends. Therefore, as shown in FIG. 7B, a tensile force in the width direction acts on the central portion of the intersection region 150.
  • the intersection area 150 of FIG. 9 easily fits the buttocks, and the intersection area 150 does not bump, so that the appearance (appearance) at the time of mounting is also improved.
  • FIG. 10 is a diagram illustrating a modification 2 according to the first embodiment.
  • the difference from the first embodiment described above is that the length extending to the dorsal side in the longitudinal direction of each central elastic member 30 is shortened, and the first elastic region Y does not intersect with the second elastic region X. It is a point. Therefore, in the intersection region 150 in the second modification, the second elastic region X and the extension region Y'extended by the first elastic region Y intersect.
  • the extension region Y' is a region in which a tensile force in the longitudinal direction acts when the diaper 1 is in the extended state.
  • Force is applied and the length L1 in the width direction of the intersection region 150 (in the partially enlarged view of FIG. 10, the extension line of each central elastic member 30 is indicated by a dotted line along the longitudinal direction, and between the extension lines in the width direction. Since the length L1) is shorter than the length L2 in the longitudinal direction, a tensile force in the width direction acts on the central portion of the intersection region 150. Therefore, the same effect as described above can be obtained.
  • FIG. 11 is a diagram illustrating a modification 3 according to the first embodiment.
  • the difference from the first embodiment described above is that a part of the rear waist circumference region 11R is cut from the non-skin side surface to provide a notch 60, and the length of the first elastic region Y in the longitudinal direction is short, so that they intersect.
  • the first elastic region Y and the second elastic region X do not intersect.
  • the extension region Y'extended by the first elastic region Y and the extension region X'extended by the second elastic region X intersect, which is described above. It is the same as the state shown in FIG. 7B.
  • the length L1 in the width direction of the intersection region 150 is shorter than the length L2 in the longitudinal direction as in the first embodiment (L1).
  • L2 in the longitudinal direction is shorter than the length L2 in the longitudinal direction as in the first embodiment (L1).
  • ⁇ L2 see the partially enlarged view of FIG. 11, each extension line is the same as in FIGS. 9 and 10
  • a tensile force acts on the intersection region 150 in the longitudinal direction (vertical direction)
  • the intersection region 150 Since the tensile force in the width direction acts on the central portion of the above, the same effect as described above can be obtained in the intersection region 150 in the modified example 3.
  • FIG. 12 is a schematic plan view of the unfolded and stretched diaper 1 according to the second embodiment as viewed from the skin side.
  • the back sheet of the exterior body 10 is divided into a front exterior back sheet 120F and a rear exterior back sheet 120R (FIG. 3), but in the second embodiment, the exterior back sheet (not shown). Is composed of one sheet continuous with the front waist circumference region 11F, the inseam region 12 and the rear waist circumference region 11R, similarly to the exterior top sheet (exterior top sheet 110 in the first embodiment).
  • the rear waist elastic members 130Rn1 and 130Rn2 are placed in the width direction inside the joint portion 13FR in the longitudinal direction and outside the center line CL in the longitudinal direction of the diaper 1 without providing the elastic member 140 around the rear leg. It is arranged along. Further, also in the front waist circumference region 11F, the front waist circumference elastic members 130Fn1 and 130Fn2 are placed in the width direction inside the joint portion 13FR of the front waist circumference region 11F and outside the center line CL in the longitudinal direction of the diaper 1. It is arranged along. Mainly, it differs from the first embodiment in the above points, and the other points are almost the same. Therefore, this difference will be mainly described below, and similar configurations are designated by the same reference numerals. The description will be omitted.
  • the region of the diaper 1 sandwiched between the front waist elastic member 130Fn1 and the front waist elastic member 130Fn2 in the longitudinal direction is the second elastic region X provided in the front waist region 11F.
  • the region sandwiched between the rear waist circumference elastic members 130Rn1 and 130Rn2 in the longitudinal direction is the second elastic region X provided in the rear waist circumference region 11R.
  • the first elastic region Y (first stress region) and the second elastic region X (second stress region) intersect.
  • the length L1 in the width direction of the intersection region 150 is shorter than the length L2 in the longitudinal direction of the intersection region 150, and the first In conjunction with the tensile force in the longitudinal direction due to the elastic region Y, the tensile force in the width direction of the second elastic region X acts to the central portion of the intersection region 150.
  • the length in the width direction of the intersection region 150' is rather than the length in the longitudinal direction of the intersection region 150', as in the above-mentioned intersection region 150.
  • the length is shorter, and the tensile force in the width direction of the second elastic region X acts on the central portion of the intersection region 150'in conjunction with the tensile force in the longitudinal direction due to the extension region Y'.
  • the fit of the crotch portion by the first stress region can be maintained, and the fit of the second stress region can be maintained, so that the movement becomes easier. Further, since the force acts outward in the width direction up to the central portion of the crossing region 150 (150'), the crossing region 150 (150') does not bump and the appearance (appearance) at the time of mounting is improved.
  • the first elastic region Y and the second elastic region X intersect, but even if either of them is the extension region Y'or X', or both of them are Even in the extension regions Y'and X', the same effect as described above is obtained.
  • the second elastic region X is inside the joint portion 13FR of the rear waist circumference region 11R in the longitudinal direction and is closer to the center line CL in the longitudinal direction of the diaper 1.
  • the first elastic region Y extends outward in the longitudinal direction by a predetermined length S1 from the outer end in the longitudinal direction of the second elastic region X. Then, it is arranged along the width direction at the inner end portion in the longitudinal direction of the front waist circumference region 11F, and is arranged outward in the longitudinal direction from the front waist circumference elastic member 130F located on the innermost side in the longitudinal direction of the front waist circumference region 11F.
  • the first elastic region Y is arranged inside the third elastic region Z in the longitudinal direction from the outer end in the longitudinal direction.
  • the present invention is not limited to this, and the first elastic region Y may extend outward in the longitudinal direction from the outer end in the longitudinal direction of the third elastic region Z. In that case, the first elastic region Y extends outward in the longitudinal direction from the outer end in the longitudinal direction of the third elastic region Z by a length shorter than the predetermined length S1 in the rear waist circumference region 11R described above. It is preferable to have.
  • the first elastic region Y and the second elastic region X intersect, and the first elastic region Y extends outward in the longitudinal direction, so that the pulling force of the first elastic region Y is second.
  • the first elastic region Y and the second elastic region X work together to pull up the inseam region 12 to make it easier to fit the buttocks.
  • the front waist circumference region 11F has less unevenness in body shape than the buttocks side, the pulling force of the first elastic region Y is reduced by shortening the length of the first elastic region Y in the longitudinal direction. , It is possible to form a wide absorption area of urine when urinating without overfitting.
  • the above-mentioned third elastic region Z is composed of a plurality of elastic members (130F), but the third elastic region Z is a strip-shaped elastic sheet or the like having elasticity even if it is a single elastic member. It may be.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dermatology (AREA)
  • Nursing (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

L'invention concerne un article (1) absorbant comprenant un corps extérieur (10) et un corps absorbant (20) : une partie de jonction (13FR) reliant une paire de parties d'extrémité latérale (13F) d'une région de taille avant (11F) et une paire de parties d'extrémité latérale (13R) d'une région de taille arrière (11R) ; une première région élastique (Y) étant disposée au niveau d'une partie centrale de l'article (1) absorbant dans le sens de la largeur ; une seconde région élastique (X) étant disposée le long du sens de la largeur à l'intérieur de la partie de jonction (13FR) dans le sens de la longueur et à l'extérieur d'une ligne centrale de l'article (1) absorbant dans le sens de la longueur ; et lorsque la première région élastique (Y) et une région d'extension (Y') associée sont définies en tant que première région de contrainte, et lorsque la seconde région élastique (X) et une région d'extension (X') associée sont définies en tant que seconde région de contrainte, la longueur (L1) d'une région d'intersection (150) où la première et la seconde région de contrainte se croisent dans le sens de la largeur étant plus courte que la longueur (L2) dans le sens de la longueur.
PCT/JP2020/014220 2019-06-19 2020-03-27 Article absorbant WO2020255526A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019114020A JP7366597B2 (ja) 2019-06-19 2019-06-19 吸収性物品
JP2019-114020 2019-06-19

Publications (1)

Publication Number Publication Date
WO2020255526A1 true WO2020255526A1 (fr) 2020-12-24

Family

ID=73799378

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/014220 WO2020255526A1 (fr) 2019-06-19 2020-03-27 Article absorbant

Country Status (4)

Country Link
JP (1) JP7366597B2 (fr)
CN (2) CN112107433A (fr)
TW (1) TW202100118A (fr)
WO (1) WO2020255526A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11188056A (ja) * 1997-12-26 1999-07-13 Uni Charm Corp 使い捨て着用物品
JP2004248769A (ja) * 2003-02-18 2004-09-09 Hakujuji Co Ltd 使い捨て吸収性物品
JP2004329590A (ja) * 2003-05-08 2004-11-25 Livedo Corporation パンツ型おむつ
WO2011132688A1 (fr) * 2010-04-19 2011-10-27 ユニ・チャーム株式会社 Article à porter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3294140B2 (ja) * 1996-12-30 2002-06-24 ユニ・チャーム株式会社 幼児用トレニングパンツ
JP5303689B1 (ja) * 2012-03-29 2013-10-02 ユニ・チャーム株式会社 使い捨て着用物品

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11188056A (ja) * 1997-12-26 1999-07-13 Uni Charm Corp 使い捨て着用物品
JP2004248769A (ja) * 2003-02-18 2004-09-09 Hakujuji Co Ltd 使い捨て吸収性物品
JP2004329590A (ja) * 2003-05-08 2004-11-25 Livedo Corporation パンツ型おむつ
WO2011132688A1 (fr) * 2010-04-19 2011-10-27 ユニ・チャーム株式会社 Article à porter

Also Published As

Publication number Publication date
JP7366597B2 (ja) 2023-10-23
JP2021000151A (ja) 2021-01-07
TW202100118A (zh) 2021-01-01
CN212662100U (zh) 2021-03-09
CN112107433A (zh) 2020-12-22

Similar Documents

Publication Publication Date Title
JP4908255B2 (ja) 吸収性物品
JP5681770B2 (ja) 使い捨て吸収性物品
WO2013132982A1 (fr) Article vestimentaire jetable
WO2008069281A1 (fr) Article absorbant
US20110015606A1 (en) Absorbent article
WO2019031124A1 (fr) Article absorbant à remonter
JP5887258B2 (ja) 吸収性物品
JP5250407B2 (ja) 使い捨てパンツ型おむつおよびその製造方法
JP6255203B2 (ja) 吸収性物品
WO2022004162A1 (fr) Serviette hygiénique de type culotte
WO2020255526A1 (fr) Article absorbant
JP7125858B2 (ja) パンツ型吸収性物品
JP7171236B2 (ja) パンツ型吸収性物品
WO2016104070A1 (fr) Couche jetable
JP6412846B2 (ja) 使い捨ておむつ
JP2019198592A (ja) パンツ型吸収性物品
WO2023032386A1 (fr) Article absorbant de type sous-vêtement
JP7438870B2 (ja) 吸収性物品
JP7160854B2 (ja) 吸収性物品
WO2019221305A1 (fr) Article absorbant de type culottes
JP6427482B2 (ja) 使い捨ておむつ
WO2019220934A1 (fr) Article absorbant de type culotte
WO2020138058A1 (fr) Article absorbant de type culotte et procédé de fixation de garniture absorbante
CN116350429A (zh) 内裤型吸收性物品和吸收性物品包装体
CN116350431A (zh) 内裤型吸收性物品和吸收性物品包装体

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20826694

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20826694

Country of ref document: EP

Kind code of ref document: A1