EP0220173A1 - Serviette hygienique - Google Patents

Serviette hygienique

Info

Publication number
EP0220173A1
EP0220173A1 EP19850902757 EP85902757A EP0220173A1 EP 0220173 A1 EP0220173 A1 EP 0220173A1 EP 19850902757 EP19850902757 EP 19850902757 EP 85902757 A EP85902757 A EP 85902757A EP 0220173 A1 EP0220173 A1 EP 0220173A1
Authority
EP
European Patent Office
Prior art keywords
pad
sheath
layer
water
super
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Withdrawn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
EP19850902757
Other languages
German (de)
English (en)
Inventor
Winalee G. Mitchell
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.)
TRANQUILITY PRODUCTS INTERNATIONAL Inc
Original Assignee
TRANQUILITY PRODUCTS INTERNATIONAL Inc
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 TRANQUILITY PRODUCTS INTERNATIONAL Inc filed Critical TRANQUILITY PRODUCTS INTERNATIONAL Inc
Publication of EP0220173A1 publication Critical patent/EP0220173A1/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Withdrawn legal-status Critical Current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
    • 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; Colostomy devices
    • A61F5/4401—Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Colostomy devices with absorbent pads
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
    • A61L15/24—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
    • 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
    • A61F13/15203—Properties of the article, e.g. stiffness or absorbency
    • A61F13/15211—Properties of the article, e.g. stiffness or absorbency soluble or disintegratable in liquid
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
    • 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
    • A61F13/539—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 characterised by the connection of the absorbent layers with each other or with the outer layers
    • 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
    • A61F13/505—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators with separable parts, e.g. combination of disposable and reusable parts
    • A61F2013/5055—Possibility of doubling or putting in new pieces
    • 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 of the pads
    • A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • A61F13/51401—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material
    • A61F2013/51409—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a film
    • 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
    • A61F2013/530481—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 superabsorbent materials, i.e. highly absorbent polymer gel materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F2013/53445—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad from several sheets
    • 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
    • A61F13/539—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 characterised by the connection of the absorbent layers with each other or with the outer layers
    • A61F2013/53908—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 characterised by the connection of the absorbent layers with each other or with the outer layers with adhesive

Definitions

  • the absorbent pad according to the invention compri ses a longitudinally extending layer of a water-impervious backing material , a longitudi nal ly extending water-absorbing layer, and a water pervious sheath.
  • the water pervious sheath is adhered to the layer of backing material and the water absorbing layer is received within the sheath so that relative longitudinal movement between the sheath and the water absorbing layer is difficult when the latter is dry, but easy when it is wet.
  • the pad is particul arly adapted for use i n the care of uri nary incontinence.
  • United States patent no. 3,903,889 granted September 9, 1975 to David Torr discloses a liquid-absorbent product comprising a o articulate liquid-absorbent gel -formi ng material , modified guar gum being preferred, which can be adhered to additional components by means of a water soluble adhesive.
  • the '889 patent further discloses the use of the absorbent product described above with a liquid-pervious body contacting layer and an outer layer, which has been waterproofed at one or both sides, to form an absorbent pad which is described as disposable by flushing in a toilet system.
  • the absorbent pad accordi ng to the i nstant i nvention compri ses a longitudinally extending layer of a water-impervious backing material , a longitudinal ly extending water-absorbi ng l ayer compri si ng at least one super-absorbent polymer that is capable of absorbing at least five times its dry weight of water and a water-pervious sheath, the water-absorbing layer being received within the sheath.
  • a pad in accordance .nth the invention is constructed in a such a manner that the water-absorbing layer is longitudinally movable within the sheath but, pri or to use, i s f rictionally engaged therewith to an extent necassary to prevent such movement i n normal handl ing.
  • the absorbent l ayer is wet from use its wei ght i s greatl y i ncreased a nd i ts tendency f or l ongitudinal movement is correspondingly increased. Both layers of one end of the sheath are adhered to the backing materi al adjacent that end by means of a heat seal or appropriate adhesive.
  • the layers of the sheath are adhered to the backi ng material at i ts other end only at the outermost extremities of that end. Accordingly, after use, when the pad i s gripped by the ful ly seal ed end and downward motion is imparted thereto toward the partial ly seal ed end and that notion i s suddenly stopped, the absorbent layer is forced by its inertia from its position i n the sheath into a wai ting recent icle.
  • the water-absorbent layer comprises water-dispersible components, it may be rienosited as described above into a standard toilet and subsequently flushed away without fear of clogging sewage or septic systems.
  • Fi gure 1 i s a pl an view of a pad accordi ng to the invention.
  • Figure 2 i s a bottom plan view of a portion of the pad of Figure 1, namely a sheath with a water-absorbing layer received within the sheath.
  • Figure 3 is a view, with parts broken away to show details of construction, of the water-absorbing layer of the pad of
  • FIG 4 is a view of an alternate water-absorbing layer for a pad according to the invention.
  • Figure is a view of the bottom of the pad of Figure 1.
  • the pad 10 comprises a layer 11 of a water-imperviou s backing material, e.g., polyethylene, a water absorbing layer 12, and a water-pervious sheath 13.
  • the pad 10, the layer 11 and the sheath 13 are substantially coextensive in plan, each extending longitudinally from a first convex end 14 to a second concave end 15; each has generally parallelsides 16 and 17.
  • the water absorbing layer 12 is receivedwithin the sheath 13, having generally parallel sides 18 and 19, and extending longitudinally from a first end 20 to a second end 21.
  • the first major surface 25 of the backing material layer 11 is seen in Figure 1 where portions of the sheath 13, namely a layer 28 having a major surface 29 and a layer 30 having a major surface 31 ( Figure 2) , have been broken away.
  • the major surfaces 31 and 28 (Fi ⁇ ure 1) constitute second and first major surfaces, respectively, of the sheath 13.
  • the major surface 25 of the backing layer 11 faces the major surface 31 ( Figure 2) of the sheath layer 30 i n the pad 10.
  • the sheath 13 i s composed of a single layer of a polyester, non-woven fiber mat with the edges thereof overlapped as indicated at 32 to form the layer into the sheath 13; i n the pad 10 the sheath 13 i s comoressed adjacent its sides 16 and 17 so that the opposed surfaces thereof constitute apparently separate sheath layers 28 and 30, as previously described.
  • the water-absorbing layer 12 is composed of a layer 33 of a pleated laminate of at least one cellules ic tissue and a cross-linked starch-acrylic graft copolymer, a cross-linked acryl ic polymer, or a blend of the two which, in any case, is capable of absorbing at least five times its own dry weight of water.
  • the layer 33 is wrapped in three layers 34 of a cellulosic tissue. There are arcuate cuts , as i ndicated at 35, in the pleated laminate layer 33, which form flaps 3fi attached to the laminate layer 33. When the flans 36 are fol ded away from the cuts indicated at 35 there are openings through the laminate layer 33.
  • the water-absorbing layer 12 can be produced as described i n published application PCT/US82/00312, which application also discloses the optimum ratio of open area to total area and the optimum sizing for the openings.
  • Sui table cross-l inked acrylic polymers and methods for their nroduction are disclosed in U.S. patent Mo. 4,117,184, while suitable cross-l inked starch-acrylic graft co polymers and methods for their production are disclosed i n U . S . patent No . 4,076,673.
  • the polymers and copolymers are operahle to absorb at least 25, and, most desirably, at l east 40 ml of a 1 percent by wei ght aqueous sodium chloride solution per gram of the polymer or copolymer.
  • the laminate layer 33 is shown in Figure 4 in an unpleatedcondition. it is composed of upper and lower layers 37 and 33 of a cross-l inked starch-acryli c graft copolymer laminated between two layers of a cellulosic tissue and anintermediate cellulosic tissue layer 39; the layers 37, 38and 39 are adhered together to form the laminate layer 33.
  • the cuts 35 extend all the way through the laminate layer33; the flaps 36 are composed of the three layers.
  • the water absorbing layer 12 thereof Prior to use of the pad 10, the water absorbing layer 12 thereof i s comparati vely l i ght, and i s ef fecti vely s upported therei n by the shea th 13 a nd the w a te r impervioius backing material layer 11 with its inturned edges 26 and 27.
  • the layer 12 i s movable longitudinally within the sheath 13, but is sufficiently engaged, frictionally, that such movement does not occur i n normal usage and handling.
  • the layer 12 When the layer 12 is wet from use, however, its weight is significantly increased, perhaps as much aa 40 times, and, as a consequence, its tendency for longitudinal movement is greatly increased.
  • the pad 10 when the layer 12 is wet, the pad 10 can be supported over a toilet by the end 14, with the end 15 pointing toward thetoilet, and moved in the direction of the toilet; upon thesudden stopping of the movement or, in extreme cases a reversal of the direction of movement, the layer 12 will continue to move in the original d irection and wil l fa ll into the toi let for disposal.
  • a laminate layer 40 is shown in Figure 3.
  • the layer 40 is a ful l equivalent for the layer 33, having cuts 35 and flaps 35, and differing only in that it is composed only of upper and lower layers 41 and 42 of a cross-linked starch-acrylic graft copolymer l ami nated between two l aye rs o f a cel l ul osic ti ssue; the l ayers 41 and 42 are adhered together to form the laminate layer 40
  • Air lai d sheets of cel lulosic fibers are Known. It is also known that particles of a super-absorbent polymer can be codepos i ted wi th cel lulosic fibers as they are being formed into sheets by the air-l aying process so that the ultimate product is an air laid cellulosic fiber sheet with the polymer particles distributed therethrough. Such an absorbent sheet can be used in place of the water-absorbing layer 12 of the pad 10.
  • the cellulosic fibers of air laid sheets are comparatively bulky and, therefore, are more likely to clog sewage systems into which they are flushed than are the previously described water-absorbing layers 12.
  • the pad 19 c a n p roduced simpl y by cutti ng th i n polyethylene sheet material to an eppropri ate size and shape, pl aci ng a water porvious sheath wi th a water absorbing layer received therein on the cut sheet, folding edges of the cut sheet over the edges of the sheath, and heat seal ing or gluing the sheath to the cut sheet as indicated at 22, 23 and 24 in Figure 1.
  • the seals indicated a t 22, 23 and 24 not only l ock the sheath to the polyethylene sheet material, but also holn the edges 25 and 27 of the polyethylene in their folded-over positions where they support the sheath 13 with the water absorbing layer 12 therein in the pad 10.
  • the second major surface 43 of the backing material layer 11 is shown in Figure 5 and is opposed to the major surface 25 ( Figure 1) .
  • Affixed thereto is a pressure sensitive adhesive strip 44 protected by a strippable cover 45.
  • the cover 45 i s removed from the adhesive strip 44; the pad 10 can then be secured to an undergarment (not illustrated) of the user.
  • the water impervious layer 11 has been described as a polyethylene sheet, any other thin, flexible material that is water-impervious in the sense that it is capable of preventing l eakage the re tiirough in ordinary use of a pad according to the i nvention can be used.
  • Other polyol ef i ns , vi nyl chloride-vinylidene chloride conolymers and even cellophane coated to impart the requisite degree of impermeability to water are examples of other suitable material s.
  • the water pervious sheath 12 has been described as a polyester, non-woven fiber mat
  • other material s can be used, for example nolyolefin non-woven fiber mats, the only requisi te bei ng that the sheath be water-pervious and sufficiently strong and water-resistant that it is capable of supporting the water-absorbing layer 12 in the pad 10 prior to and during use.
  • Other changes and modi fications wil l be apparent to those skil led in the art and can be made wi thout departing from the spiri t and scope of the invention as defined in the appended claims.

Landscapes

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

Abstract

Serviette hygiénique absorbante (10) comprenant une couche (11) d'un matériau de support imperméable, une couche absorbante (12) comprenant au moins un polymère superabsorbant et une gaine perméable à l'eau (13). La couche absorbante (12) est logée dans la gaine (13) et peut se déplacer dans celle-ci; avant l'utilisation, toutefois, elle est fixée en position par frottement afin d'empêcher tout mouvement pendant une manipulation normale. Lorsque la couche absorbante (12) est mouillée, son poids rend aisée son extraction de la gaine (13). Les deux couches d'une extrémité de la gaine (13) adhèrent sur le matériau de support (11) à proximité de ladite extrémité. Les couches de la gaine (13) adhèrent à l'autre extrémité du matériau de support (11) uniquement sur les parties les plus éloignées de ladite extrémité.
EP19850902757 1985-05-03 1985-05-03 Serviette hygienique Withdrawn EP0220173A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1985/000828 WO1986006623A1 (fr) 1985-05-03 1985-05-03 Serviette hygienique

Publications (1)

Publication Number Publication Date
EP0220173A1 true EP0220173A1 (fr) 1987-05-06

Family

ID=22188671

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850902757 Withdrawn EP0220173A1 (fr) 1985-05-03 1985-05-03 Serviette hygienique

Country Status (2)

Country Link
EP (1) EP0220173A1 (fr)
WO (1) WO1986006623A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996010973A2 (fr) * 1994-10-10 1996-04-18 The Procter & Gamble Company Enveloppe jetable pour materiau absorbant
US5688258A (en) * 1995-05-02 1997-11-18 The Procter & Gamble Company Disposable cover for an absorbent materials
FR2728785A1 (fr) * 1994-12-30 1996-07-05 Maj Slip absorbant reutilisable
US6042700A (en) * 1997-09-15 2000-03-28 Applied Materials, Inc. Adjustment of deposition uniformity in an inductively coupled plasma source
US6572735B1 (en) * 1999-08-23 2003-06-03 Kimberly-Clark Worldwide, Inc. Wet-formed composite defining latent voids and macro-cavities
US6979386B1 (en) 1999-08-23 2005-12-27 Kimberly-Clark Worldwide, Inc. Tissue products having increased absorbency

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3683919A (en) * 1970-01-15 1972-08-15 Myron B Ells Flushable sanitary napkin
US3903889A (en) * 1973-02-16 1975-09-09 First National Bank Of Nevada Disposable liquid absorbent products
US4176667A (en) * 1977-10-25 1979-12-04 Adult Care Products, Inc. Disposable liquid absorbent pad and method
US4293609A (en) * 1979-07-09 1981-10-06 The Dow Chemical Company Flexible absorbent laminates

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8606623A1 *

Also Published As

Publication number Publication date
WO1986006623A1 (fr) 1986-11-20

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