EP1005303A1 - Article absorbant jetable - Google Patents

Article absorbant jetable

Info

Publication number
EP1005303A1
EP1005303A1 EP96939418A EP96939418A EP1005303A1 EP 1005303 A1 EP1005303 A1 EP 1005303A1 EP 96939418 A EP96939418 A EP 96939418A EP 96939418 A EP96939418 A EP 96939418A EP 1005303 A1 EP1005303 A1 EP 1005303A1
Authority
EP
European Patent Office
Prior art keywords
absorbent body
elastic
article
article according
diaper
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.)
Withdrawn
Application number
EP96939418A
Other languages
German (de)
English (en)
Inventor
Bard Eiterjord
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
SCA Hygiene Products 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 SCA Hygiene Products AB filed Critical SCA Hygiene Products AB
Publication of EP1005303A1 publication Critical patent/EP1005303A1/fr
Withdrawn legal-status Critical Current

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
    • A61F13/47—Sanitary towels, incontinence pads or napkins
    • A61F13/4704—Sanitary towels, incontinence pads or napkins having preferential bending zones, e.g. fold lines or grooves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007—Form-fitting, self-adjusting disposable diapers
    • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/49017—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means being located at the crotch region
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/531—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad
    • A61F13/532—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
    • A61F13/533—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad having discontinuous areas of compression
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—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
    • A61F2013/4512—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 folded in special shape during use
    • A61F2013/4543—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 folded in special shape during use with a special transverse section
    • 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
    • A61F2013/4587—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 with channels or deep spot depressions on the upper surface
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007—Form-fitting, self-adjusting disposable diapers
    • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F2013/49038—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located all around the absorbent article's perimeter
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007—Form-fitting, self-adjusting disposable diapers
    • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F2013/49039—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located around the target zone
    • 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
    • A61F13/51474—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its structure
    • A61F2013/51486—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its structure with specially shaped backsheets
    • A61F2013/51492—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its structure with specially shaped backsheets having specially shaped gas or air bubbles or bag-like structure
    • 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
    • A61F2013/530868—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 characterized by the liquid distribution or transport means other than wicking layer
    • A61F2013/530883—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 characterized by the liquid distribution or transport means other than wicking layer having folds

Definitions

  • TITLE Disposable liquid-absorbent article.
  • the present invention relates to an absorbent article intended for disposable use according to the preamble of claim 1.
  • Liquid-absorbent articles for example diapers, provided with elastic in order to impart to the article its shape when in use, are already known.
  • the main purpose of the elastic is to create a raised sealed edge at the crotch portion, against the legs of the wearer.
  • Hitherto known solutions have a limiting capacity in terms of the ability to locally collect and enclose larger volumes of, for example, faeces and urine.
  • a pair of training pants in which the leg elastic forms an encompassing cuff around the legs is known, for example, from US 3,860,003.
  • the elastic is completely rectilinear and extends principally to the side of the absorbent body, to let the edge of the diaper seal against the legs when in use.
  • US 4,050,462 relates to a diaper with elastic extending rectilinearly in a flat condition of the diaper, the purpose of which is to contract the crotch area of the diaper and, by means of pleating, increase the area and the volume per length unit of the absorbent body in order to achieve an increased absorbent action.
  • WO 88/00010 discloses a diaper with a principally rectilinear elastic, forming a V-shaped configuration.
  • the elastic extends onto the absorbent body of the diaper and demarcates a region which is shaped through the contracting action of the elastic.
  • US 4,801,345 discloses a method for the manufacture of diapers.
  • the method includes application of elastic along the crotch portion of the diaper.
  • the elastic extends concavely outwards along the longitudinal edges of the diaper and completely to the side of the absorbent body.
  • the purpose of the elastic is principally to achieve a sealed connection of the edge of the diaper against the legs of the wearer.
  • a further effect is also a certain contraction and pleating of the absorbent body across the crotch portion.
  • EP 0,219,326 discloses a diaper with elastic extending completely rectilinearly in a flat condition of the diaper and completely to the side of the absorbent body. Elastic is arranged at the outer edge of the diaper on both sides of the crotch portion and also in a trimming on both sides of the absorbent body. In addition to maintaining an erect, sealing edge by means of the trimming, the elastic ensures a certain pleating and contraction of the absorbent body.
  • GB 2,234,157 relates to a pair of training pants with elastic extending around the cuff of the pants, along the edge of the crotch portion against the legs of the wearer and transversely across the crotch portion.
  • the elastic for connection around the legs reduces the risk of leakage, while the elastic transverse to the crotch portion is merely arranged in order to enable a rational application of continuous elastic threads.
  • the construction and the method is especially adapted to diapers in the form of pants.
  • An absorbent article according to the preamble of claim 1 is further disclosed in the Swedish Patent Application No. 9401680-5.
  • the object of the present invention is to provide a disposable liquid-absorbent article, which when in use is imparted the highly efficient collecting shape evident from Swedish Patent Application No. 9401680-5 and where the article is designed in such a way that the formation of the desired basin shape is facilitated.
  • Fig. 1 shows a plan view of an article according to the invention in Swedish Patent Application No.
  • Fig. 2 shows a perspective view of the diaper according to Fig. 1, essentially shaped into position for use
  • Fig. 3 shows a perspective view of the article according to Swedish Patent Application No. 9401680-5 in a second embodiment, shaped into position for use
  • Fig. 4 shows a longitudinal section through the diaper in a flat, stretched condition, along the line IV-IV in Fig. 7.
  • Fig. 5 shows a corresponding longitudinal section through the diaper, shaped into position for use, along the line V-V in Fig. 7.
  • Fig. 6 shows a cross section through the diaper, shaped into position for use, along the line VI-VI in Fig. 2.
  • Figs.7-9 schematically show further embodiments of the diaper according to Swedish Patent Application No.9401680-5.
  • Fig. 10 shows a plan view of an article according to a first embodiment of the invention
  • Fig. 11 shows a corresponding plan view of a second embodiment of the invention.
  • An article that is particularly representative of the invention has been chosen as an embodiment. It is an article for the collection of liquid and faeces, namely a diaper for so-called heavy incontinence, i.e. not babies but adults who suffer from severe incontinence due to disease.
  • the diaper is constituted by a cover 11, enclosing a core in the shape of an absorbent body 12.
  • the core In a flat, out-stretched condition, which is shown in Fig. 4 the core exhibits a relatively flat main form with two main surfaces facing away from each other, namely an inner side 13 intended to be faced towards against the user, and an outer side 14, intended to be faced outwards from the user.
  • the absorbent body 12 exhibits an encompassing, rounded edge portion 15, which gives the absorbent body 12 an appropriate outline, anatomically adapted to the body of the wearer. Even if the absorbent body 12 essentially has an even thickness said absorbent body in practice is preferably provided with a central portion 16 of a somewhat greater thickness (not shown) .
  • the cover 11 is formed of two layers 17, 18, with mutually different properties, which are located against the inner side 13 and outer side 14, respectively, of the absorbent body 12 and close the absorbent body since the two layers are interconnected outside the edge portion 15 of the absorbent body and form an encompassing flange-like edge portion 19 for the diaper as a whole.
  • the two layers 17, 18 are placed in close contact to each other and are interconnected.
  • the specific components used for forming the shown diaper may be any components commonly used for such purposes.
  • the layer 17 which is affixed on the inner side 13 may be any soft, flexible, liquid-permeable material, such as nonwoven or a soft perforated plastic film of polyethylene or the like.
  • the layer 18 on the outer side 14 is of a liquid- impermeable material, such as thin (e.g. 20 ⁇ ) plastic film of polyethylene, polyvinylchloride or the like.
  • the absorbent body 12 may consist of cellulose fibres, air-laid tissue, various types of superabsorbent materials etc.
  • the diaper in the shown example has a main form of an asymmetrical hourglass or a peanut shell with a waist or a crotch portion 20, which expands in one direction towards a rear portion 21 and in the opposite direction towards a front portion 22, which portions are intended to connect with the corresponding portions of the wearer when in use.
  • the absorbent body 12 tapers to a greater extent than the outlines of the diaper 10 in the crotch portion 20, which gives a larger width of the edge portion 19 of the diaper 10 on a level with the crotch portion 20.
  • the diaper 10 is provided with a contracting elastic 23, which is arranged with a configuration and location specific for the invention.
  • An appropriate shape is such a shape that the diaper, when in use, may accommodate large amounts of liquid and solid excreta from the body, partly by means of absorption and partly by retaining the products by means of its shape, be they urine, blood or other body fluids or faeces.
  • the elastic 23 is at least partially arranged with arcuately curved portions 24, 25 extending across the absorbent body 12.
  • two continuously arcuately curved elastic portions 24, are arranged 25, which via edge elastic (see below) principally meet at their ends at two intersections 26, 27 in the proximity of the longitudinal edge portions 28, 29 of the diaper.
  • the elastic 23 is connected to at least one of the layers 17, 18 in the cover 11 and in the first embodiment is connected to the liquid-permeable layer 17.
  • the elastic is arranged on the inner side of the layer 17, i.e. between the absorbent body 12 and the layer, but may of course alternatively be applied on the outer side of the layer.
  • the elastic consists of elongate elastic members having for example a thread- or bandshaped elastic core of a highly elastic material, for example rubber, and a wound thread cover which may be connected by an adhesive and enable anchoring of the elastic core in the layer 17 of the diaper, at the same time as the elastic core permits elastic movement.
  • the elastic strives to contract and for this purpose the elastic threads or bands are pre-stressed, i.e.
  • each of the arcuately curved portions 24, 25 is arranged with double elastic, i.e. with two adjacently extending elastic members 30, 31, 32, 33, of which one elastic member 33 in one of the curved portions 25 turns into edge elastic 34, 35, i.e. extends along a portion of both longitudinal edges 28, 29 of the diaper to the intersection point 26, 27 with the elastic members 30, 31 in the opposite curved portion 24,
  • edge elastic 34, 35 extends essentially rectilinearly but may also have an arcuate, but weak curvature, i.e. with a large radius of curvature.
  • the diaper is shown in Fig. 1 essentially in a plan view, i.e. out-stretched, but in such a condition that the contracting action of the elastic is visible.
  • Fig. 2 shows the diaper shaped to a condition for use. This shape is formed as soon as handling of the diaper commences, which effect is described more closely below. As long as the diaper is flat essentially no shaping occurs except that the absorbent body is somewhat compressed. The desired shape may also be forcibly initiated during bending of the diaper, by pressing down with the hand the region 38 located inside the elastic, before the diaper is applied into position for use. Due to the striving of the curved elastic to contract and its anchoring in one of the layers 17 of the cover together with the connection of the layer to the absorbent core, the elastic in cooperation with the deformation properties of the cover and the absorbent body 12, creates essentially perpendicular basin walls 39' in relation to the flat interior of the article. The cover portions outside side edges of the absorbent body in the crotch portion of the article form the basin walls 39'' which together with the basin walls 39' enclose a basin- like space.
  • Fig.3 shows a view corresponding to Fig.2 of another embodiment of the diaper, where the elastic, here denoted 23', has the same configuration as in the first embodiment, but is connected to the outer layer 18 of the cover, i.e. the liquid-impermeable layer.
  • the elastic threads or bands may preferably be applied by adhesive on the inner side of the layer 18. This in turn must be connected by its inner side to the absorbent body.
  • the corresponding appropriate basin is principally achieved also in this embodiment.
  • the forces acting by means of the arcuate portions of the elastic on the diaper obtain additional assistance from external forces, before these elastic portions give the required deformation of the diaper for the formation of the vertical basin walls.
  • the wider portion of the edge portion 19, located directly opposite the crotch portion is raised due to the striving of the elastic to contract, i.e. to reduce its length.
  • the raised longitudinal edges 36, 37 seek to bear on the body of the wearer, in practice the inside of the thighs, thereby forming an extremely liquid-sealed connection against the body.
  • essentially vertical basin walls arise inside the curved elastic portions.
  • a certain pleating also arises laterally by means of the contraction of the layer by the elastic.
  • the arcuate basin walls may, as mentioned above, be essentially perpendicular in relation to a line along the basically flat bottom of the basin.
  • the arcuate basin walls may, through choice of the pre-stressing of the elastic and the deformability of the absorbent body, form an acute or obtuse angle to the said line along the basin bottom.
  • the angle is acute a pocket-like space is obtained closest to the elastic.
  • the encompassing elastic 23 thus forms an upper edge of the basin 39 serving as an accommodation space for excreted body products, which is especially valuable for more severe cases of incontinence where the volumes may become fairly large. Faeces may be received in this space without risk that they pass outside the collection region of the diaper.
  • the absorbent body 12, especially the part which is located within the elastic 23, has the task of absorbing liquid, while the task of the basin walls is also to prevent leakage of liquid from the diaper, before the absorbent body 12 has been able to completely absorb the total liquid volume.
  • the raised edge portions 19 also retain liquid which is not immediately absorbed by the absorbent body 12 because of the position of the diaper, for example when the wearer is lying sideways. As soon as the wearer changes body position the liquid may be absorbed by the absorbent body.
  • the longitudinal section in Figs. 4 and 5 and the transverse section in Fig. 6 illustrate the shaping influence of the elastic, which will be explained more closely.
  • the shaping influence of the elastic arises since the elastic is contracting and thus is striving to reduce its length.
  • the cover layers are connected in their turn to the absorbent body by their surfaces, whereby tensile forces in the plane of the cover layers are transferred to the absorbent body. Since the elastic in the main part of its extension across the absorbent body has been applied in a curved shape, the contracting action leads to the elastic in each point along the curved portion applying a force component 40, 41, see Figs.
  • the absorbent body 12 of the diaper exhibits a certain resistance to compression, which is illustrated in Fig. 4 by reactive force components 42, 43, which thus counteract the contractive forces 40, 41 of the elastic.
  • the resistance to compression is greater than the resistance to deformation transversely to the plane of symmetry 44 of the disc-shaped absorbent body, i.e. transversely to the force direction 42, 43 in the plane of the paper.
  • the absorbent body 12 suitably consists of so-called cellulose fluff pulp and ,together with the cover 11, is relatively pliable, but exhibits a certain resistance to compression.
  • These properties i.e. that the torsional moments caused by the force pairs 41, 43 and 40, 42, respectively, bring about a deformation of the article in regions with arcuate elastic (which deformation is symbolized by the arc lines 48, 49, 50, 51 which schematically represent the local direction of curvature).
  • a bending moment on the absorbent body 12 arises already in a flat condition.
  • the article however, has such a degree of stiffness that it is not deformed in a flat condition; instead, this deformation is not initiated until the article is handled.
  • Fig. 5 illustrates the basin formed by the elastic, which is limited by the, in relation to the plane of the article, essentially perpendicular basin walls 39' along the arcuate elastic and also the basin walls 39' ' formed by portions of the cover extending outside the absorbent body. These portions are raised by the action of the edge elastic 34, 35 in combination with the arcuate elastic.
  • the cross section according to Fig. 6 shows that the basin is comparatively deep and therefore is able to retain large amounts of excreta.
  • Fig. 7 schematically shows an embodiment of the diaper where the elastic extends transversely across the crotch portion 20 with a curved elastic portion 60 forming the demarcating transverse wall 61.
  • a demarcation is achieved between the rear portion 21 and the front portion 22 of the diaper, whereby faeces and urine are separated and a larger volume is provided for the collection space for faeces in proportion to the collection space for urine.
  • Fig. 8 shows a further option, where the rear portion 21 and the front portion 22, each have one basin-like space 66,67 with transverse basin edges 68-71 inside each curved portion, which space is formed by two curved elastic portions 62, 63, 64, 65.
  • Fig. 9 shows an alternative design, in which the main form of the diaper in a flat condition may be essentially rectangular.
  • An hourglass-shape with a tapering crotch portion 20 is obtained by means of the contracting action of the elastic.
  • transverse basin edges 72, 73 are formed, providing an effective barrier against edge leakage.
  • Fig. 10 shows a first embodiment of the invention, in which the diaper is provided with groove-shaped recesses 74 which facilitate the formation of the desired shape.
  • Said recesses both facilitate the deformation work for the contracting elastic, and initiate the deformation on desired sites, thereby forming said basin edges.
  • Said recesses may preferably be formed in the absorbent body during its manufacture, before it is enclosed between the layers 17, 18, or be formed by means of powerful compression at a later stage.
  • said recesses 74 are preferably arranged as longitudinal grooves in the absorbent body 12, preferably placed parallel to the edge portions 15.
  • Fig. 11 illustrates another embodiment of the present invention wherein the absorbent body has been provided with compression lines 75, forming a continuous pattern, preferably designed as deformed circles, ovals etc.
  • Said compression pattern which is arranged inside the basin mentioned above, i.e. within a region limited by the elastic 23 and the edge portions 15, has the purpose of, on one hand, directing the liquid flow in desired directions and, on the other hand, improving the transportation ability in said directions. On the whole, both a better utilization of the absorbent body and a faster liquid uptake of the product are thus achieved.
  • a further effect of said compression lines is a facilitated forming of the absorbent body, since control of the deformation properties is enabled via these lines, whereby the desired bowl-shape is obtained.
  • the invention is by no means limited to the above mentioned embodiments but is of course applicable for other embodiments within the scope of the basic idea of the invention.
  • the closed loop of elastic may, for example, be replaced by detached curved elastic portions. These may, for example, be arranged with another extension, for example transversely across the crotch region 20 so as to separate faeces and urine from each other.
  • Other articles than diapers for heavy incontinence may be of current interest, such as baby diapers, sanitary napkins or the like.
  • essentially continuously curved portion primarily refers to an arcuate or arcuately curved portion, but also includes a combination of a plurality of rectilinear portions, preferably at least three rectilinear portions as a substitute for a semi-circular arc or the like.
  • said compression lines may be replaced by other types of lines where an increased density in the absorbent material is obtained, for example by means of heat, ultrasound, laser etc.

Landscapes

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

Abstract

L'invention concerne un article absorbant tel que couche (10) ou article similaire, comportant un corps absorbant (12) formant une cuvette nettement marquée. On obtient cette forme au moyen d'un élastique (23) lequel, du fait de son emplacement et de sa fixation exerce une force de cisaillement donnant au corps absorbant (12) la forme désirée. En outre, le corps absorbant peut comporter des cavités et/ou des lignes de compression qui facilitent l'adoption de la forme désirée et améliorent l'orientation et le transport des liquides.
EP96939418A 1995-11-16 1996-11-14 Article absorbant jetable Withdrawn EP1005303A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9504077 1995-11-16
SE9504077A SE504444C2 (sv) 1995-11-16 1995-11-16 Absorberande artikel såsom en blöja med en skålformig absorpstionskropp uppvisande minst en urtagning i form av spår eller kompressionslinjer
PCT/SE1996/001470 WO1997017922A1 (fr) 1995-11-16 1996-11-14 Article absorbant jetable

Publications (1)

Publication Number Publication Date
EP1005303A1 true EP1005303A1 (fr) 2000-06-07

Family

ID=20400238

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96939418A Withdrawn EP1005303A1 (fr) 1995-11-16 1996-11-14 Article absorbant jetable

Country Status (4)

Country Link
EP (1) EP1005303A1 (fr)
JP (1) JP2000500052A (fr)
SE (1) SE504444C2 (fr)
WO (1) WO1997017922A1 (fr)

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EP1447066B1 (fr) 2003-02-12 2008-10-01 The Procter & Gamble Company Couche-coulotte confortable
EP2324805B1 (fr) 2003-02-12 2013-11-13 The Procter & Gamble Company Partie centrale absorbante pour un article absorbant
GB0606661D0 (en) 2006-04-03 2006-05-10 Brightwake Ltd Improvements relating to dressings
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US8486926B2 (en) 2006-11-17 2013-07-16 Harbor Therapeutics, Inc. Steroid tetrol solid state forms
JP5101912B2 (ja) * 2007-03-23 2012-12-19 ユニ・チャーム株式会社 吸収性物品
JP5259705B2 (ja) 2007-06-18 2013-08-07 ザ プロクター アンド ギャンブル カンパニー ほぼ連続的に分布した吸収性粒子状ポリマー材料を含む封止された吸収性コアを備える使い捨て吸収性物品
CA2868589C (fr) 2007-06-18 2016-11-08 The Procter & Gamble Company Article absorbant jetable forme d'un materiau polymerique particulaire absorbant distribue de maniere sensiblement continue et procede associe
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EP2329803B1 (fr) 2009-12-02 2019-06-19 The Procter & Gamble Company Appareil et procédé pour le transfert d'un matériau à particules
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EP2532329B1 (fr) 2011-06-10 2018-09-19 The Procter and Gamble Company Procédé et appareil pour la fabrication de structures absorbantes à partir d'un matériau absorbant
EP2532328B1 (fr) 2011-06-10 2014-02-26 The Procter and Gamble Company Procédé et appareil pour la fabrication de structures absorbantes à partir d'un matériau absorbant
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GB2493960B (en) 2011-08-25 2013-09-18 Brightwake Ltd Non-adherent wound dressing
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PL2740452T3 (pl) 2012-12-10 2022-01-31 The Procter & Gamble Company Wyrób chłonny o wysokiej zawartości materiału chłonnego
US9216116B2 (en) 2012-12-10 2015-12-22 The Procter & Gamble Company Absorbent articles with channels
EP2740449B1 (fr) 2012-12-10 2019-01-23 The Procter & Gamble Company Article absorbant à haute teneur en matériau absorbant
US10639215B2 (en) 2012-12-10 2020-05-05 The Procter & Gamble Company Absorbent articles with channels and/or pockets
EP2740450A1 (fr) 2012-12-10 2014-06-11 The Procter & Gamble Company C'ur absorbant à haute teneur en matériau superabsorbant
US9216118B2 (en) 2012-12-10 2015-12-22 The Procter & Gamble Company Absorbent articles with channels and/or pockets
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EP3254656B1 (fr) 2013-06-14 2021-11-10 The Procter & Gamble Company Article absorbant et noyau absorbant formant des canaux lorsqu'il est humide
JP6334705B2 (ja) 2013-08-27 2018-05-30 ザ プロクター アンド ギャンブル カンパニー チャネルを有する吸収性物品
US9987176B2 (en) 2013-08-27 2018-06-05 The Procter & Gamble Company Absorbent articles with channels
US11207220B2 (en) 2013-09-16 2021-12-28 The Procter & Gamble Company Absorbent articles with channels and signals
WO2015039062A1 (fr) 2013-09-16 2015-03-19 The Procter & Gamble Company Articles absorbants avec canaux et signaux
EP3351225B1 (fr) 2013-09-19 2021-12-29 The Procter & Gamble Company Noyaux absorbants ayant des zones exemptes de matériau
ES2606320T3 (es) 2013-12-19 2017-03-23 The Procter & Gamble Company Núcleos absorbentes que tienen áreas formadoras de canal y juntas de envoltura en c
US9789009B2 (en) 2013-12-19 2017-10-17 The Procter & Gamble Company Absorbent articles having channel-forming areas and wetness indicator
EP2905001B1 (fr) 2014-02-11 2017-01-04 The Procter and Gamble Company Procédé et appareil de fabrication d'une structure absorbante comprenant des canaux
EP2949300B1 (fr) 2014-05-27 2017-08-02 The Procter and Gamble Company Âme absorbante pourvue d'un motif de matériau absorbant
JP2018508291A (ja) 2015-03-16 2018-03-29 ザ プロクター アンド ギャンブル カンパニー 改善された強度を有する吸収性物品
WO2016149251A1 (fr) 2015-03-16 2016-09-22 The Procter & Gamble Company Articles absorbants à âmes améliorées
EP3294248B1 (fr) 2015-05-12 2020-12-30 The Procter and Gamble Company Article absorbant avec adhésif c ur-feuille de support amélioré
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Also Published As

Publication number Publication date
SE9504077D0 (sv) 1995-11-16
JP2000500052A (ja) 2000-01-11
WO1997017922A1 (fr) 1997-05-22
SE9504077L (sv) 1997-02-10
SE504444C2 (sv) 1997-02-10

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