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WO2025131295A1 - Article absorbant de type culotte - Google Patents

Article absorbant de type culotte Download PDF

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Publication number
WO2025131295A1
WO2025131295A1 PCT/EP2023/087428 EP2023087428W WO2025131295A1 WO 2025131295 A1 WO2025131295 A1 WO 2025131295A1 EP 2023087428 W EP2023087428 W EP 2023087428W WO 2025131295 A1 WO2025131295 A1 WO 2025131295A1
Authority
WO
WIPO (PCT)
Prior art keywords
elastic elements
point
shaping
back panel
absorbent article
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
PCT/EP2023/087428
Other languages
English (en)
Inventor
Åsa LINDSTRÖM
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Essity Hygiene and Health AB
Original Assignee
Essity Hygiene and Health AB
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 Essity Hygiene and Health AB filed Critical Essity Hygiene and Health AB
Priority to PCT/EP2023/087428 priority Critical patent/WO2025131295A1/fr
Publication of WO2025131295A1 publication Critical patent/WO2025131295A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 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 specially adapted to be worn around the waist, e.g. diapers, nappies
    • A61F13/49007—Form-fitting, self-adjusting disposable diapers
    • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/49011—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the waist region
    • A61F13/49012—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the waist region the elastic means being elastic panels
    • 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 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 specially adapted to be worn around the waist, e.g. diapers, nappies
    • 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
    • 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 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 specially adapted to be worn around the waist, e.g. diapers, nappies
    • A61F13/496—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 specially adapted to be worn around the waist, e.g. diapers, nappies 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 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 specially adapted to be worn around the waist, e.g. diapers, nappies
    • 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 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 specially adapted to be worn around the waist, e.g. diapers, nappies
    • 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
    • A61F2013/49033—Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material being elastic in transversal direction
    • 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 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 specially adapted to be worn around the waist, e.g. diapers, nappies
    • A61F13/49007—Form-fitting, self-adjusting disposable diapers
    • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F2013/49038—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located all around the absorbent article's perimeter

Definitions

  • the present disclosure relates to a pant-type absorbent article , such as a pant diaper, a sanitary pant , or incontinence pant .
  • Pant-type absorbent articles generally have a front panel , a back panel , and an absorbent insert between the front panel and the back panel .
  • the front panel is intended to be placed at the belly of a wearer
  • the back panel is intended to be placed at the back and the buttocks of a wearer
  • the absorbent insert is intended to be placed at the crotch of a wearer, when the absorbent article is in a worn state .
  • pant-type absorbent articles there is a general desire in the field of pant-type absorbent articles to provide absorbent articles with increased comfort and fit , and discrete underwear-like visual appearance .
  • the pant-type absorbent article has increased comfort and fit in the buttocks covering portion .
  • the buttocks covering portion is a portion of the back panel intended to cover the buttocks of a wearer .
  • EP 2 260 811 Al discloses a pant-type absorbent article in form of a pant diaper with alleged good appearance .
  • the pant diaper has elastici zed regions 234 in the back panel with elastic elements 235 extending in the transverse direction Y ( see Fig . 2 of EP 2 260 811 Al ) .
  • the elastici zed regions 234 are intended to define a smoothly curved contact surface along the rounded surface of a wearer' s buttock .
  • panttype absorbent article having improved comfort , fit , and underwear-like visual appearance , in particular, in the buttocks covering portion .
  • pant-type absorbent article as defined in claim 1 .
  • Optional features and preferred embodiments of the pant-type absorbent article are defined in the dependent claims .
  • a pant-type absorbent article such as a pant diaper, a sanitary pant , or incontinence pant , has a central longitudinal axis , wherein a longitudinal direction is defined as a direction parallel to the central longitudinal axis and a transversal direction is defined as a direction perpendicular to the central longitudinal axis , the central longitudinal axis dividing the pant-type absorbent article into a first article side and a second article side along the transversal direction, the absorbent article comprising a front panel having a front panel waist edge , a pair of front panel leg edges , and a pair of front panel side edges , a back panel having a back panel waist edge , a pair of back panel leg edges , a pair of back panel side edges , a main portion, and a buttocks covering portion, the main portion being provided between the pair of back panel side edges as seen in the transversal direction, the buttocks covering portion being provided between
  • the pant-type absorbent article has the shaping elastic elements extending over the buttocks covering portion in such a manner that an elastic force exerted by the shaping elastic element acts along its imaginary straight line between the first point and the second point , wherein an angle between the imaginary straight line and the transversal direction is from 7 ° to 25 ° , the shaping elastic elements extend in an angled manner with respect to the transversal direction, thereby better conforming to a wearer' s buttocks .
  • the shaping elastic elements also act together with the leg elastic elements , thereby further promoting improved fit .
  • the pant-type absorbent article has improved comfort , fit , and underwear-like visual appearance in the buttocks covering portion .
  • the pant-type absorbent article may be a disposable or a washable pant-type absorbent article .
  • pant-type absorbent article may be intended for adult users .
  • "absorbent article” hereinafter, "pant-type absorbent article” is meant .
  • the central longitudinal axis may run through the back panel , the front panel , and the absorbent insert of the absorbent article .
  • the central longitudinal axis dividing the pant-type absorbent article into a first article side and a second article side along the transversal direction may divide the absorbent article into two article sides , i . e . , into the first article side and the second article side , of equal si ze in terms of area si ze .
  • angles and dimensions defined herein in connection with the absorbent article are measured when the absorbent article is in its fully-extended, unfolded, and flat state , as shown in Fig . 1 .
  • the fully-extended, unfolded, and flat state is reali zed by opening or breaking the side seams and unfolding the absorbent article into a flat state .
  • Fully- extended means that the absorbent article has been extended in both the longitudinal and transversal direction to such an extent that all the elastic elements and members contained in the absorbent article are extended to such an extent that they no longer gather any part of the absorbent article , but the entire absorbent article is completely flat and in an ungathered state , without wrinkles from any contraction of an elastic element or elastic member .
  • the absorbent article is extended only to such an extent that this flat condition is reached .
  • the absorbent article may be put on a plate and fixed with needles or nails .
  • the front panel is intended to be located at the belly of a wearer when the absorbent article is in a worn state .
  • the front panel may be generally rectangular, with a rectangular shape having a long side and a short side .
  • the long side may be perpendicular to the central longitudinal axis of the absorbent article .
  • the front panel waist edge is intended to be located at the waist of a wearer when the absorbent article is in a worn state .
  • the pair of front panel leg edges are intended to be located at the legs of a wearer, one of the pair of front panel leg edges being located at one leg of a wearer, the other one of the pair of front panel leg edges being located at the other leg of the wearer .
  • the front panel side edges may form the short side of the rectangular shape of the front panel .
  • the back panel is intended to be located at the back and the buttocks of a wearer when the absorbent article is in a worn state .
  • the back panel waist edge is intended to be located at the waist of a wearer when the absorbent article is in a worn state .
  • the pair of back panel leg edges are intended to be located at the legs of a wearer, one of the pair of back panel leg edges being located at one leg of the wearer, the other one of the pair of back panel leg edges being located at the other leg of the wearer .
  • the main portion of the back panel may be generally rectangular, with a rectangular shape having a long side and a short side .
  • the long side may be perpendicular to the central longitudinal axis of the absorbent article .
  • the back panel side edges may form the short side of the rectangular shape of the back panel .
  • the buttocks covering portion of the back panel may have a trapezoidal shape with the pair of back panel leg edges constituting tapering and/or curved edges extending towards the crotch of a wearer when the absorbent article is in a worn state .
  • a pant-type absorbent article refers to an absorbent article of wear, which has a pre- formed waist and leg openings and is intended to enclose the lower part of the wearer' s trunk like a pair of underwear .
  • the pant-type absorbent article is pulled onto the body of the wearer by inserting the legs into the leg openings and pulling the article up towards the waist .
  • Panttype absorbent articles normally provide a snug fit and resemble underwear . They are normally intended to fit comfortable and snugly about the wearer without compromising skin comfort , sagging and leakage .
  • a pant-type absorbent article is normally intended to absorb and/or contain various exudates such as urine , menses and/or feces discharged from the wearer of the article .
  • Pant-type absorbent articles include a pant-shaped chassis and an absorbent core component integrated with the chassis .
  • Pant-type absorbent articles include pant diapers , sanitary panties and incontinence pants .
  • Pant-type absorbent articles include pre- fastened pant-type articles , such as , for example , training pants , having re- closable fasteners for opening and reclosing the pant-type article during use and permanently sealed pant-type articles having a permanent seal or seam that is destroyed when tearing the article along the seal .
  • the absorbent insert is preferably applied on an inner surface of the front panel and the back panel , and comprises an absorbent core .
  • An absorbent core may comprise any conventional material suitable for absorbing discharged bodily wastes , such as cellulosic fluf f pulp, tissue layers , highly absorbent polymers ( super absorbents ) , absorbent foam materials including hydrogel- foam material , absorbent nonwoven materials , or the like .
  • the absorbent core can comprise nonabsorbent components such as sti f fening elements , shaping elements , binders , etc .
  • Various types of liquid-receiving and liquid distribution elements can also be included in the core .
  • absorbent articles It is conventional in absorbent articles to have an absorbent core comprising layers of di f ferent properties with respect to liquid receiving capacity, liquid distribution capacity and storage capacity .
  • the absorbent core may have any useful shape , such as rectangular, hourglass shape , T-shape , etc . , as known in the art .
  • the materials suited as topsheet materials should be soft and non-irritating to the skin and be readily penetrated by body fluid, e . g . , urine or menstrual fluid, and display low rewetting properties .
  • the liquid impermeable backsheet may consist of a thin plastic film, e . g . , a polyethylene or polypropylene film, a nonwoven material coated with a liquid impervious material , a hydrophobic nonwoven material which resists liquid penetration or laminates of plastic films and nonwoven materials .
  • the backsheet material may be breathable so as to allow vapor to escape from the absorbent core , while still preventing liquids from passing through the backsheet material .
  • the topsheet and backsheet of the absorbent insert may extend outwardly beyond the area of the absorbent core .
  • the topsheet and backsheet may be connected to each other, for example , by adhesive bonding, gluing, or welding by heat or ultrasonically .
  • the topsheet and/or the backsheet may further be attached to the absorbent core by any method known in the art , such as adhesive , heat-bonding, welding, needling, etc .
  • the materials used for the absorbent article , in particular for the front panel , the back panel , and the absorbent insert , as well as the manufacturing method of the absorbent article may correspond to typical materials and manufacturing methods of absorbent articles that are generally well known to the skilled person any may be such as described in EP 3 544 563 Bl or WO 2018 / 106160 Al , the contents of which are incorporated herein by reference .
  • the front panel and the back panel preferably comprise an outer layer of material and inner layer of material enclosing the elastic elements of the absorbent article , the material preferably being nonwoven material .
  • the nonwoven material layers or webs may be selected from, for example , spunbond, air laid, wet laid, carded, electro spunned or meltblown nonwovens .
  • the nonwoven material may be bonded by multiple techniques , e . g . , by needling, hydroentangling, or heat bonding .
  • the threads may have a linear mass density, dtex, of about 20 dtex to 1200 dtex .
  • dtex linear mass density
  • the threads may have a linear mass density of 20 dtex to 600 dtex .
  • the threads may have a linear mass density of 50 dtex to 1200 dtex .
  • the absorbent article may be intended to be worn by a wearer having a specific clothing size, such as XXS, XS, S, M, L, XL, XXL.
  • a product size of the absorbent article may be adapted to the clothing size.
  • a relationship between a product length of the absorbent article and a product width of the absorbent article may differ between the different product sizes.
  • the product length is a length from the front panel waist edge to the back panel waist edge when the absorbent article is in its fully-extended, unfolded, and flat state, wherein the product length is measured parallel to the longitudinal direction.
  • the product width is the length from one side edge of the back panel to the other side edge of the back panel when the absorbent article is in its fully- extended, unfolded, and flat state, wherein the product width is measured parallel to the transversal direction.
  • the product length to product width ratio may be higher than the product length to product width ratio for larger clothing sizes.
  • an absorbent article intended to be worn by a wearer having clothing size XXS, XS, or S may have an angle between the imaginary straight line and the transversal direction from 15° to 22°.
  • An absorbent article intended to be worn by a wearer having clothing size M may have an angle between the imaginary straight line and the transversal direction from 13° to 19°.
  • An absorbent article intended to be worn by a wearer having clothing size L, XL or XXL may have an angle between the imaginary straight line and the transversal direction from 10° to 15°.
  • the shaping elastic elements may be spaced apart from each other as seen in the longitudinal direction so that they extend in parallel to each other .
  • the feature that the first point is the location on the shaping elastic element that is closest to an innermost leg elastic element means that the first point is a location on the shaping elastic element , which location is closest to the innermost leg elastic element out of every location on the shaping elastic element , when considering as distance to the innermost leg elastic element the distance of the location measured perpendicular to the innermost leg elastic element .
  • the feature that the second point is the location on the shaping elastic element that is closest to the respective one of the first longitudinal side edge and the second longitudinal side edge of the absorbent insert means that the second point is a location on the shaping element , which location is closest to the respective one of the first longitudinal side edge and the second longitudinal side edge out of every location on the shaping elastic element , when considering as the distance to the respective one of the first longitudinal side edge and the second longitudinal side edge the distance of the location measured perpendicular to the respective one of the first longitudinal side edge and the second longitudinal side edge .
  • said feature may also include configurations in which the respective shaping elastic element has an extension that deviates , for example , slightly deviates , from a straight extension between the first point and the second point , as long as the maj ority of the elastic force exerted by the respective shaping elastic element between the first point and the second point acts along the imaginary straight line .
  • said feature may include configurations in which the respective shaping elastic element intermittently extends between the first point and the second point .
  • the shaping elastic element may be cut one or more times between the first point and the second point .
  • the elastic force exerted by the shaping elastic elements is composed of the forces of the individual portions of the cut shaping elastic element .
  • the angle between the imaginary straight line and the transversal direction may be from 10 ° to 22 ° .
  • the distance between the first point and the second point may be at least 70% , preferably at least 80% , more preferably at least 90% , most preferably 100% , of the distance between the first intersection point and the second intersection point .
  • each shaping elastic element may extend from a respective one of the pair of back panel leg edges to a respective one of the first and second longitudinal side edges of the absorbent insert .
  • each shaping elastic element may cross a respective one of the first and second set of elongated leg elastic elements extending along the pair of back panel leg edges .
  • the distance between the first point and the second point is 100% of the distance between the first intersection point and the second intersection point .
  • the configuration in which the distance between the first point and the second point is 100% of the distance between the first intersection point and the second intersection point also covers embodiments in which the shaping elastic element extends beyond the first and second intersection points because the distance between the first point and the second point cannot be longer than 100% of the distance between the first intersection point and the second intersection point .
  • the first point and the second point are the points closest to the first and second intersection points , respectively .
  • an overall length of the shaping elastic element can be longer than the distance between the first and second intersection points , the first and second points closest to the first and second intersection points remain the same and would coincide with the first and second intersection points in such a case .
  • the shaping elastic element may extend up to a respective one of the pair of back panel leg edges , the shaping elastic element may be cut at the back panel leg edge during manufacture of the absorbent article by cutting of the leg openings .
  • An absorbent article intended to be worn by a wearer having clothing si ze M may have an angle between the innermost leg elastic element and the imaginary straight line of the shaping elastic element from 24 ° to 27 ° .
  • An absorbent article intended to be worn by a wearer having clothing si ze L, XL or XXL may have an angle between the innermost leg elastic element and the imaginary straight line of the shaping elastic element from 16 ° to 19 ° .
  • the number of shaping elastic elements in the first set of shaping elastic elements may be the same as the number of shaping elastic elements in the second set of shaping elastic elements .
  • the shaping elastic elements follow the curvature of the buttocks in the best way, regardless of si ze , and provide the product with the best adaption to the curvature of the buttocks .
  • the shaping elastic elements cross the at least one elastic member .
  • an area between the shaping elastic elements and the leg elastic elements is small enough in order not to bulge outwardly .
  • parallel may designate a geometric relationship not only including a precise parallel arrangement , but also small variations of that precise parallel arrangement , which a skilled person would consider as parallel when considering measurement inaccuracies and/or manufacturing tolerances .
  • more than 6 shaping elastic elements affect the esthetical aspect of the product because a non-elastic, generally triangular area above the shaping elastic elements (area between the shaping elastic elements and the at least one elastic member of the back panel, cf., e.g., Fig. 1) is decreased.
  • a non-elastic, generally triangular area above the shaping elastic elements area between the shaping elastic elements and the at least one elastic member of the back panel, cf., e.g., Fig. 1
  • the shaping elastic element furthest away from the back panel waist edge is the lowermost shaping elastic element and the shaping elastic element closest to the back panel waist edge is the uppermost shaping elastic element .
  • the shaping elastic element between the uppermost and the lowermost shaping elastic element is a middle shaping elastic element .
  • the largest spacing distance is the distance between the uppermost and the middle shaping elastic element and the smallest spacing distance is the distance between the lowermost and the middle shaping elastic element .
  • the at least one elastic member extending at least partly over the main portion may have a lowermost portion, which may be located furthest away from the back panel waist edge , wherein for each of the first set of shaping elastic elements and the second set of shaping elastic elements the following may be further ful filled : the respective set of shaping elastic elements may have an innermost shaping elastic element , which may be located closest to the back panel waist edge out of the respective set of shaping elastic elements , a distance along the longitudinal direction between the second point of the innermost shaping elastic element and a point where the innermost leg elastic element may be located at the respective one of the first longitudinal side edge and the second longitudinal side edge may be defined as a distance Y, and a distance along the longitudinal direction between the second point of the innermost shaping elastic element and the lowermost portion of the at least one elastic member may be defined as a distance X, a relationship of X divided by Y is between 0 . 8 and 1 . 5 .
  • the at least one elastic member extending at least partly over the main portion of the back panel comprises a set of back elastic elements extending at least partly over the main portion, the back elastic element located furthest away from the back panel waist edge is the lowermost portion of the at least one elastic member .
  • the higher the ratio of distance X to distance Y the closer the shaping elastic elements are to the pair of back panel leg edges , i . e . , the furthest away from the back panel waist edge .
  • the higher the ratio of distance X to distance Y the better the improvement of fit , comfort , and appearance especially in a lower portion of the buttocks covering portion .
  • an elastic force of each of the first set of leg elastic elements and the second set of leg elastic elements may be higher than the elastic force of each of the first set of shaping elastic elements and the second set of shaping elastic elements , and the elastic force of each of the first set of shaping elastic elements and the second set of shaping elastic elements may be higher than or equal to an elastic force of the at least one elastic member .
  • the set of back elastic elements may comprise a set of back elastic threads , in particular, the set of back elastic threads having the above-indicated speci fications .
  • the set of back elastic elements may extend along the transversal direction, wherein each of the first set of shaping elastic elements and the second set of shaping elastic elements may not cross the set of back elastic elements .
  • the function of the first and second set of shaping elastic elements is not af fected by the set of back elastic elements .
  • the absorbent article can be manufactured in an easier way, compared to the case in which the first set of shaping elastic elements and the second set of shaping elastic elements crosses the set of back elastic elements . This is because there is no interference between adhesive fastening of the shaping elastic elements and ultrasonic fastening or adhesive fastening of the back elastic elements .
  • the pant-type absorbent article may comprise a chassis and the front panel , the back panel , and the absorbent insert may be integral parts of the chassis .
  • the front panel , the back panel , and the absorbent insert may be made of three separate pieces of laminated web material .
  • the back panel may be formed of an inner material web and an outer material web, the inner material web and the outer material web enclosing the at least one elastic member, the first set of shaping elastic elements , the second set of shaping elastic elements , the first set of leg elastic elements , and the second set of leg elastic elements .
  • the inner material web may be a web closer to a wearer' s body when the absorbent article is in a worn state as compared to the outer material web .
  • the main portion may further comprise a first section of waist elastic elements extending along the back panel waist edge .
  • the first section of waist elastic elements is intended to be arranged closer to the back panel waist edge than the at least one elastic member of the main portion and may be arranged at the main portion so as to not overlap with or cross the at least one elastic member .
  • the absorbent insert may have a layered structure comprising a liquid permeable topsheet , a liquid impermeable backsheet , and an absorbent core applied between the liquid permeable topsheet and the liquid impermeable backsheet .
  • Fig . 1 shows a schematic illustration of a pant-type absorbent article according to a first embodiment of the present disclosure , the absorbent article being in its fully-extended, unfolded, and flat state .
  • Fig . 2 is an enlarged view of a part of the absorbent article of Fig . 1 , the part corresponding to the dashed rectangle indicated in Fig . 1 .
  • Fig . 3 shows the same part of an absorbent article as Fig . 2 but for an absorbent article according to a second embodiment of the present disclosure .
  • Fig . 5A is a photograph showing an absorbent article according to a fourth embodiment of the present disclosure ( right side ) in comparison with a reference absorbent article ( left side ) , the absorbent articles being in a worn state using a mannequin .
  • Fig . 5B is an enlarged view of a part of Fig . 5A.
  • Fig . 6A is a photograph showing an absorbent article according to the first embodiment of the present disclosure ( right side ) in comparison with a reference absorbent article ( left side ) , the absorbent articles being in a worn state using a mannequin .
  • Fig . 6B is an enlarged view of a part of Fig . 6A.
  • Fig . 7 is a photograph showing the absorbent article according to the fourth embodiment of the present disclosure shown in Fig . 5A ( right side ) in comparison with the absorbent article according to the first embodiment of the present disclosure ( left side ) , the absorbent articles being in a worn state using a mannequin .
  • Fig . 8 is a schematic illustration of a cross section of an absorbent insert of the pant-type absorbent article along the transversal direction .
  • Fig . 1 shows a schematic illustration of a pant-type absorbent article 1 according to a first embodiment of the present disclosure , the absorbent article 1 being in its fully- extended, unfolded, and flat state .
  • the pant-type absorbent article 1 has a central longitudinal axis CL, wherein a longitudinal direction L is defined as a direction parallel to the central longitudinal axis CL and a transversal direction T is defined as a direction perpendicular to the central longitudinal axis CL .
  • the central longitudinal axis CL divides the pant-type absorbent article 1 into a first article side 2 and a second article side 3 along the transversal direction T .
  • the first article side 2 and the second article side 3 are of equal area si ze .
  • the absorbent article 1 comprises a front panel 10 having a front panel waist edge 11 , a pair of front panel leg edges 12 , 13 , and a pair of front panel side edges 14 , 15 .
  • the absorbent article 1 comprises a back panel 20 having a back panel waist edge 21 , a pair of back panel leg edges 22 , 23 , a pair of back panel side edges 24 , 25 , a main portion 26 , and a buttocks covering portion 27 .
  • the main portion 26 is provided between the pair of back panel side edges 24 , 25 as seen in the transversal direction T
  • the buttocks covering portion 27 is provided between the main portion 26 and the pair of back panel leg edges 22 , 23 as seen in the longitudinal direction L .
  • An absorbent insert 30 is located between the front panel 10 and the back panel 20 in the longitudinal direction L so as to partly overlap the front panel 10 and the back panel 20 , and is connected to the front panel 10 and the back panel 20 .
  • Fig . 8 is a schematic illustration of a cross section of the absorbent insert 30 along the transversal direction T .
  • the absorbent insert 30 has an absorbent core 33 applied between two layers , i . e . , the liquid permeable topsheet 34 and the liquid impermeable backsheet 35 .
  • the topsheet 34 and the backsheet 35 of the absorbent insert 30 extend outwardly beyond the area of the absorbent core 33 , and are connected to each other .
  • the absorbent insert 30 has a first longitudinal side edge 31 and a second longitudinal side edge 32 extending in the longitudinal direction L, wherein the first longitudinal side edge 31 and the second longitudinal side edge 32 are defined by the edges of any layer of the absorbent insert , such as , e . g . , the liquid permeable topsheet 34 and the liquid impermeable backsheet 35 , extending furthest in the transversal direction T .
  • the edges of the liquid permeable topsheet 34 and the liquid impermeable backsheet 35 do not have to be coinciding .
  • the front panel 10 , the back panel 20 , and the absorbent insert 30 are made of three separate pieces of laminated web material .
  • the back panel 20 has at least one elastic member 260 extending at least partly over the main portion 26 , wherein, in the present embodiment , the at least one elastic member 260 is a set of back elastic elements 262 , wherein the back elastic elements 262 are elastic threads extending over the main portion 26 along the transversal direction T .
  • the back panel 20 further has a first and a second set of curved elongated leg elastic elements 220 , 230 extending along the pair of back panel leg edges 22 , 23 constituting curved edges extending towards the crotch of a wearer when the absorbent article is in a worn state , and a first and a second set of elongated shaping elastic elements 270 , 280 extending at least partly over the buttocks covering portion 27 .
  • the first set of elongated shaping elastic elements 270 comprises shaping elastic elements 271 , 272 , 273 , and 274 .
  • the second set of elongated shaping elastic elements 280 comprises shaping elastic elements 281 , 282 , 283 , and 284 .
  • each of the first set of shaping elastic elements 270 and the second set of shaping elastic elements 280 does not cross the set of back elastic elements 262 .
  • the main portion 26 further comprises a first section of waist elastic elements 263 extending along the back panel waist edge 21 .
  • the first set of leg elastic elements 220 and the first set of shaping elastic elements 270 are provided on the first article side 2 and the second set of leg elastic elements 230 and the second set of shaping elastic elements 280 are provided on the second article side 3 .
  • Each shaping elastic element 271-274 , 281-284 extends in such a manner that an elastic force exerted by the shaping elastic element 271-274 , 281-284 acts along its imaginary straight line IL between the first point Pl and the second point P2 .
  • the respective set of shaping elastic elements 270, 280 has an innermost shaping elastic element 271, 281, which is located closest to the back panel waist edge 21 out of the respective set of shaping elastic elements 270, 280.
  • a distance along the longitudinal direction L between the second point P2 of the innermost shaping elastic element 271 , 281 and a point where the innermost leg elastic element 221 , 231 is located at the respective one of the first longitudinal side edge 31 and the second longitudinal side edge 32 is defined as a distance Y .
  • a distance along the longitudinal direction L between the second point P2 of the innermost shaping elastic element 271 , 281 and the lowermost portion 261 of the at least one elastic member 260 is defined as a distance X .
  • a relationship of X divided by Y is between 0 . 8 and 1 . 5 .
  • the higher the ratio of distance X to distance Y the closer the shaping elastic elements 271-274 , 281-284 are to the pair of back panel leg edges 22 , 23 , i . e . , the furthest away from the back panel waist edge 21 .
  • the higher the ratio of distance X to distance Y the better the improvement of fit , comfort , and appearance especially in a lower portion of the buttocks covering portion 27 .
  • an elastic force of each of the first set of leg elastic elements 220 and the second set of leg elastic elements 230 can be higher than the elastic force of each of the first set of shaping elastic elements 270 and the second set of shaping elastic elements 280
  • the elastic force of each of the first set of shaping elastic elements 270 and the second set of shaping elastic elements 280 can be higher than or equal to an elastic force of the at least one elastic member 260 .
  • Fig . 3 shows the same part of an absorbent article as Fig . 2 but for an absorbent article according to a second embodiment of the present disclosure .
  • each of the elongated shaping elastic elements 271-274 extends from a position slightly apart from the innermost leg elastic element 221 to a position slightly apart from the first longitudinal side edge 31 of the absorbent insert 30 .
  • the first point Pl does not coincide with the first intersection point IS 1 and the second point P2 does not coincide with the second intersection point IS2 .
  • the distance between the first point Pl and the second point P2 is less than 100% , but is at least 60% of a distance between the first intersection point IS 1 and the second intersection point IS2 .
  • the pant-type absorbent article according to the present disclosure has improved comfort , fit , and underwearlike visual appearance in the buttocks covering portion .
  • the shaping elastic elements extend parallel to each other and a spacing distance between adj acent shaping elastic elements is constant .
  • Fig . 6A is a photograph showing an absorbent article according to the first embodiment of the present disclosure ( right side ) in comparison with a reference absorbent article ( left side ) , the absorbent articles being in a worn state using a mannequin .
  • Fig . 6B is an enlarged view of a part of Fig . 6A.
  • the elastic threads of the absorbent article according to the first embodiment are provided extending over the buttocks covering portion 27 in such a manner that an elastic force exerted by the shaping elastic element acts along its imaginary straight line between the first point and the second point , wherein an angle between the imaginary straight line and the transversal direction is from 7 ° to 25 ° , the shaping elastic elements extend in an angled manner with respect to the transversal direction, thereby better conforming to a wearer' s buttocks .
  • the pant-type absorbent article according to the present disclosure has improved comfort , fit , and underwearlike visual appearance in the buttocks covering portion .

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)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

La présente divulgation se rapporte à un article absorbant de type culotte dans lequel un axe longitudinal central (CL) divise l'article absorbant de type culotte en un premier côté article (2) et un second côté article (3). L'article absorbant comprend un panneau arrière (20) comportant un bord de taille de panneau arrière (21), une paire de bords de jambe de panneau arrière (22, 23), une paire de bords latéraux de panneau arrière (24, 25), une partie principale (26), et une partie de recouvrement des fesses (27), la partie de recouvrement des fesses (27) étant disposée entre la partie principale (26) et la paire de bords de jambe de panneau arrière (22, 23). Le panneau arrière (20) comporte au moins un élément élastique (260) s'étendant au moins partiellement sur la partie principale (26), un premier et un second ensemble d'éléments élastiques de jambe allongés (220, 230) s'étendant le long de la paire de bords de jambe de panneau arrière (22, 23), et un premier et un second ensemble d'éléments élastiques de mise en forme allongés (270, 280) s'étendant au moins partiellement sur la partie de recouvrement des fesses (27), le premier ensemble d'éléments élastiques de jambe (220) et le premier ensemble d'éléments élastiques de mise en forme (270) étant disposés sur le premier côté d'article (2) et le second ensemble d'éléments élastiques de jambe (230) et le second ensemble d'éléments élastiques de mise en forme (280) étant disposés sur le second côté d'article (3), pour chacun du premier ensemble d'éléments élastiques de mise en forme (270) et du second ensemble d'éléments élastiques de mise en forme (280), ce qui suit est satisfait : chaque élément élastique de mise en forme (271-274, 281-284) présente un premier point (P1) et un second point (P2), le premier point (P1) étant plus proche du bord de taille de panneau arrière (21) que le second point (P2) tel que vu dans la direction longitudinale (L) et le second point (P2) étant plus proche du bord respectif des premier et second bords latéraux longitudinaux (31, 32) de l'insert absorbant (30) que le premier point (P1) tel que vu dans la direction transversale (T), le premier point (P1) étant l'emplacement sur l'élément élastique de mise en forme (271-274, 281-284) qui est le plus proche d'un élément élastique de jambe le plus à l'intérieur (221, 231), qui est situé le plus près du bord de taille de panneau arrière (21) hors du premier ensemble respectif du premier ensemble et du second ensemble d'éléments élastiques de jambe (220, 230), le second point (P2) étant l'emplacement sur l'élément élastique de mise en forme (271-274, 281-284) qui est le plus proche du bord respectif du premier bord latéral longitudinal et du second bord latéral longitudinal (31, 32) de l'insert absorbant (30), pour chaque élément élastique de mise en forme (271-274, 281-284), une ligne droite imaginaire (IL) est définie comme étant une ligne droite comprenant le premier point (P1) et le second point (P2), un angle (a) entre la ligne droite imaginaire (IL) et la direction transversale (T) étant de 7° à 25°, les éléments élastiques de mise en forme (271-274, 281-284) étant espacés l'un de l'autre comme vu dans la direction longitudinale (L), chaque élément élastique de mise en forme (271-274, 281-284) s'étendant de telle sorte qu'une force élastique exercée par l'élément élastique de mise en forme (271-274, 281-284) agisse le long de sa ligne droite imaginaire (IL) entre le premier point (P1) et le second point (P2), pour chaque élément élastique de mise en forme (271-274, 281-284), un point où la ligne droite imaginaire (IL) coupe l'élément élastique de jambe le plus à l'intérieur (221, 231) est un premier point d'intersection (IS1), et un point où la ligne droite imaginaire (IL) coupe le bord respectif du premier bord latéral longitudinal (31) et/ou du second bord latéral longitudinal (32) de l'insert absorbant (30) est un second point d'intersection (IS2), et une distance entre le premier point (P1) et le second point (P2) est au moins 60 % d'une distance entre le premier point d'intersection (IS1) et le second point d'intersection (IS2).
PCT/EP2023/087428 2023-12-21 2023-12-21 Article absorbant de type culotte Pending WO2025131295A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2023/087428 WO2025131295A1 (fr) 2023-12-21 2023-12-21 Article absorbant de type culotte

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2023/087428 WO2025131295A1 (fr) 2023-12-21 2023-12-21 Article absorbant de type culotte

Publications (1)

Publication Number Publication Date
WO2025131295A1 true WO2025131295A1 (fr) 2025-06-26

Family

ID=89573591

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/087428 Pending WO2025131295A1 (fr) 2023-12-21 2023-12-21 Article absorbant de type culotte

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Country Link
WO (1) WO2025131295A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003126148A (ja) * 2001-10-24 2003-05-07 Uni Charm Corp パンツ型の使い捨て着用物品
US20090187157A1 (en) * 2007-11-21 2009-07-23 Fridmann Hornung Incontinence article in the form of pants
EP2260811A1 (fr) 2008-03-31 2010-12-15 Unicharm Corporation Couche jetable
WO2018106160A1 (fr) 2016-12-05 2018-06-14 Sca Hygiene Products Ab Article absorbant de type culotte jetable
WO2021122590A1 (fr) * 2019-12-20 2021-06-24 Paul Hartmann Ag Ensemble ayant des articles absorbants pour incontinence sous la forme d'un sous-vêtement
EP3544563B1 (fr) 2016-11-23 2021-08-04 Essity Hygiene And Health Aktiebolag Article absorbant de type culotte jetable avec de multiples régions élastiques

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003126148A (ja) * 2001-10-24 2003-05-07 Uni Charm Corp パンツ型の使い捨て着用物品
US20090187157A1 (en) * 2007-11-21 2009-07-23 Fridmann Hornung Incontinence article in the form of pants
EP2260811A1 (fr) 2008-03-31 2010-12-15 Unicharm Corporation Couche jetable
EP3544563B1 (fr) 2016-11-23 2021-08-04 Essity Hygiene And Health Aktiebolag Article absorbant de type culotte jetable avec de multiples régions élastiques
WO2018106160A1 (fr) 2016-12-05 2018-06-14 Sca Hygiene Products Ab Article absorbant de type culotte jetable
WO2021122590A1 (fr) * 2019-12-20 2021-06-24 Paul Hartmann Ag Ensemble ayant des articles absorbants pour incontinence sous la forme d'un sous-vêtement

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