US20020177833A1 - Curved sanitary napkin with garment attachment panels - Google Patents

Curved sanitary napkin with garment attachment panels Download PDF

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Publication number
US20020177833A1
US20020177833A1 US08/892,744 US89274497A US2002177833A1 US 20020177833 A1 US20020177833 A1 US 20020177833A1 US 89274497 A US89274497 A US 89274497A US 2002177833 A1 US2002177833 A1 US 2002177833A1
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Prior art keywords
absorbent
side edges
sanitary napkin
garment attachment
pad
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Abandoned
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US08/892,744
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English (en)
Inventor
Paul Theodore VanGompel
Julie Terese Brocker
Lori Sue Schutkoske
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Individual
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Individual
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Application filed by Individual filed Critical Individual
Priority to US08/892,744 priority Critical patent/US20020177833A1/en
Publication of US20020177833A1 publication Critical patent/US20020177833A1/en
Priority to US10/407,403 priority patent/US6902552B2/en
Abandoned legal-status Critical Current

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    • 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
    • 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
    • A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
    • A61F13/4751—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction
    • A61F13/4752—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means being an upstanding barrier
    • 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
    • A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
    • A61F13/4751—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction
    • A61F13/4752—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means being an upstanding barrier
    • A61F13/4753—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means being an upstanding barrier the barrier being not integral with the topsheet or backsheet
    • 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
    • A61F13/476—Sanitary towels, incontinence pads or napkins characterised by encircling the crotch region of the undergarment
    • 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
    • A61F13/515—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 characterised by the interconnection of the topsheet and the backsheet
    • 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
    • A61F13/56—Supporting or fastening means
    • A61F13/5605—Supporting or fastening means specially adapted for sanitary napkins or the like
    • A61F13/5616—Supporting or fastening means specially adapted for sanitary napkins or the like using flaps, e.g. adhesive, for attachment to the undergarment
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/56—Supporting or fastening means
    • A61F13/62—Mechanical fastening means, ; Fabric strip fastener elements, e.g. hook and loop
    • A61F13/622—Fabric strip fastener elements, e.g. hook and loop
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007—Form-fitting, self-adjusting disposable diapers
    • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/4902—Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material
    • A61F2013/49031—Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material being elastic in longitudinal 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 articles specially adapted to be worn around the waist, e.g. diapers
    • A61F2013/49068—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the shape of the outline
    • A61F2013/49079—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the shape of the outline as backbone-shape
    • A61F2013/4908—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the shape of the outline as backbone-shape concave

Definitions

  • This invention relates to sanitary napkins and, more particularly, an elongated napkin, upwardly curved along its length with deflectable, functional side edges along its longitudinal sides, and a pair of depending garment attachment panels which, in use, may be used to control the deflection or configuration assumed by the side edges.
  • sanitary napkin upon which the present invention is an improvement, is well known. It is referred to variously as a curved, or three dimensional, or shaped product, usually with elasticized edges. In use, it is mounted on the crotch portion of an undergarment such as a panty and, for convenience in description, the working environment of the invention will be assumed to be in a panty as worn by a female. However, the inventive concept may also be applied to infant care and adult incontinent garments.
  • a curved product with elasticized edges generally performs well, offering the advantage, for example, of greater comfort and security.
  • the side edges tend to form a natural curve to better fit the body and a barrier to help prevent side leakage of menstrual fluids.
  • the raised side edges may be a tendency for the raised side edges to collapse against, or to fold in on top of, the absorbent element thereby allowing the panty elastic to be exposed.
  • such a side edge no longer functions properly, and there may be leakage and staining of the panty as well as discomfort for the user.
  • a flat pad with garment attachment panels potentially offers some of the same functional improvements and advantages over a plain pad as does the curved product with raised side edges.
  • the form of this product before use is a flat pad with a pair of opposite garment attachment panels extending laterally outward from an absorbent element.
  • the panels can be formed out of the cover and the baffle.
  • the absorbent element overlays the crotch portion of the panty in the normal way, and the panels are folded under to encircle the crotch portion.
  • the panels may be secured beneath the panty to each other and/or to the panty crotch portion by suitable adhesive or mechanical fasteners.
  • the relative lateral disposition of the point at which each panel is folded is determined substantially by the user in a somewhat random fashion.
  • Performance of the sanitary napkin may vary accordingly.
  • the garment attachment panels on flat conventional pads typically are designed to wrap around or fold over the panty elastic and form an upward element that fits into the groin of the wearer.
  • the panels are nonabsorbent or minimally absorbent. This arrangement places additional nonabsorbent material in the crotch region, and during use the added material has a tendency to fold over onto the absorbent element. For the comfort and protection of an appropriate fit in the groin, the user is dependent on appropriate disposition and behavior of the panty elastic.
  • Van Tilburg U.S. Pat. Nos. 4,589,876 and 4,687,4708
  • Mattingly U.S. Pat. No. 4,608,0457 disclose variations on and potential improvements over the general form of a flat pad with garment attachment panels referred to above.
  • Van Tilburg patents show a flat pad with laterally extending panels which fold over the panty elastic at the edge of the crotch portion but do not encircle the crotch portion.
  • Each panel has two substantially parallel “lines of juncture” which provide “axes of flexibility.” The axes of flexibility determine where each panel folds upward, in relation to the absorbent edge, and downward over the elastic edge of the panty.
  • the panty elastic is pulled up into the groin so that the panel, enfolded about it, lies against the respective laterally, outward-facing surface of the labia majora. This forms a dam against lateral fluid flow and prevents side leakage.
  • the desired configuration is not easily obtained in practice. Because the panty elastic is allowed to go up into the groin, the panels must be of sufficient length to cover the panty elastic throughout the length of the labia majora. Making the panels long can create a problem in that the end portions of the panels, toward the front and back of the pad, which have been folded around the panty crotch, are “fighting” with the panty elastic which is flaring out and cupping to the body. This can result in discomfort for the user and can cause the panels to come loose from the panty during wear. When the panels come loose, the panty elastic will tend to push the panels up onto the absorbent.
  • the napkin design taught by Mattingly is essentially that described above, for a conventional flat pad with garment attachment panels, but the disclosure is directed particularly to the “drapability” or sufficient flexibility of the panels. This drapability permits the panels to be folded at any lateral point to match the width of the panty crotch portion and avoid wrinkling. The panels may be of sufficient length to encircle the crotch portion and adhere to each other or to the panty.
  • the garment attachment panels which may comprise extensions of the cover or baffle portions of the sanitary napkin, are longitudinally expandable. Such panels, folded over a side of the crotch portion of an undergarment, may more readily conform to the contour of the undergarment and provide lateral protection without bunching of the undergarment.
  • Saplino does not suggest use of the garment attachment panels to control lateral disposition of the undergarment crotch portion edge and, particularly, not of an elasticized edge in relation to an absorbent element in such a way as to prevent the elasticized edge from pulling in on top of the absorbent.
  • Saplino's design does not particularly limit the disposition of the garment attachment panels when secured. They do not overlap and fasten together to establish a predetermined configuration when in use.
  • the garment attachment panels are truncated and supported at the opposite lateral edges of the absorbent element, extending inwardly and somewhat stiffly in a prefolded, flexible position. This enables the panty crotch portion to be maneuvered into position under the absorbent element and retained by the panels without the need for additional attachment adhesive.
  • the napkin has functional side edges along its lateral sides and is enhanced by the inclusion of specific means for providing additional control of the functional side edges.
  • a sanitary napkin which includes an elongated absorbent pad, normally curved upward and having opposite longitudinal side edges which are deflectable with respect to a central portion of the pad.
  • the pad includes an absorbent contained between a liquid-permeable cover and a liquid-impermeable baffle and may include a tension mechanism for inducing the upward curve of the pad.
  • the pad also contains a control mechanism secured adjacent to the side edges for selectively controlling the deflection of the side edges so as to optimize the function of the sanitary napkin.
  • the control mechanism may comprise at least one garment attachment panel, normally extending generally downward and inward from its attachment at or adjacent to one of the deflectable side edges.
  • the garment attachment panel is anchorable under the crotch portion of an undergarment so as to confine the crotch portion and substantially define its lateral disposition relative to the pad and, particularly, to the absorbent element of the pad.
  • the garment attachment panel may include a fixed portion attached to the underside of the pad at one of the side edges and a free portion extending from the fixed portion and diverging from the underside of the pad. In use, the garment attachment panel extends under the crotch portion of the undergarment.
  • the lateral disposition of the fixed portion of the panel, with respect to the pad, may define an outer lateral limit of disposition for a side edge of the crotch portion of an undergarment, particularly an elasticized side edge.
  • a fastening mechanism for connecting the opposite members of a pair of panels is preferably arranged so as to provide only a limited range of predetermined configurations with respect to deflection of the deflectable side edges and of the side edges of the absorbent with respect to its longitudinal center.
  • An advantage of the present sanitary napkin over conventional sanitary napkins with garment attachment panels, is that the disposition of the panty elastic edge is positively controlled.
  • the panty can be held under the absorbent and be prevented from folding up and over it.
  • the present design helps the user avoid inadvertently folding a panel about the panty elastic thereby leaving the panty elastic free to pull the panel itself up into the groin and resulting in an undesirable “fit.”
  • the provided control of the panty elastic also prevents it from overlapping the functional or raised edges of the pad and pulling it on top of the absorbent.
  • the present sanitary napkin allows the functional characteristics and advantages of a curved sanitary napkin with functional or raised side edges to be preserved. Simultaneously, it permits a garment attachment panel to more reliably realize its potential for shielding and protecting the crotch portion of an undergarment.
  • a further object of-the present invention is to provide a sanitary napkin having functional or raised side edges which can be controlled or pulled down, by the anchoring of a pair of garment attachment panels, to “gasket” comfortably against the thigh.
  • Another object of the invention is to provide a sanitary napkin in which, during use, the raised side edges of the pad remain free to function independently of the panty elastic.
  • Still another object of this invention is to provide a sanitary napkin in which the pull exerted on the raised side edges by a pair of garment attachment panels overcomes any tendency for the raised side edges to collapse onto or to fold in over the absorbent.
  • Still another object of the invention is to provide a sanitary napkin in which the garment attachment panels help to bias the pad convexly upward, conforming the pad to the body.
  • Yet another object of this invention is to provide a sanitary napkin in which control of the lateral disposition of the edge of the crotch portion of the undergarment results from the disposition of the effective attachment point of a garment attachment panel.
  • Still another object of the present invention is to provide a sanitary napkin configured so that, during use, the panty elastic is maintained beneath the absorbent and, at most, no higher than at the lateral side of the absorbent.
  • FIG. 1 is a perspective view of a sanitary napkin according to the invention showing the curved form the pad may assume free of restraint, before installation, and with a pair of garment attachment panels extending downward.
  • FIG. 2 is a bottom view of the sanitary napkin shown in FIG. 1 with the garment attachment panels closed.
  • FIG. 3 is a cross-sectional view of FIG. 2 taken along line 3 - 3 .
  • FIG. 4 is a top view of the sanitary napkin shown in FIG. 1 with the garment attachment panels spread open as they might be before installation.
  • FIG. 5 is a partial schematic, cutaway perspective view of the sanitary napkin shown in FIG. 1 detailing its construction.
  • FIG. 6 is a cross-sectional view of an alternative embodiment of a sanitary napkin showing garment attachment panels integrally formed with the elasticized raised edges of the napkin.
  • FIG. 7 is a cross-sectional view of a second alternative embodiment of a sanitary napkin.
  • FIG. 8 is an enlarged partial schematic cross-sectional view of the sanitary napkin shown in FIG. 1 depicting the attached relationship of a garment attachment panel to an elasticized raised edge.
  • FIG. 9 is a cross-sectional view of the sanitary napkin shown in FIG. 1 mounted onto the crotch portion of an undergarment before contact with the wearer's body.
  • FIG. 10 is a cross-sectional view of the sanitary napkin shown in FIG. 1 as worn by a female with the elastic raised edges of the sanitary napkin folded down and gasketing the thighs.
  • FIG. 11 is a cross-sectional view of a sanitary napkin showing an alternative embodiment for attaching the garment attachment panels to an elasticized raised edge.
  • a sanitary napkin 10 which represents an exemplary embodiment of the invention. It comprises a curved elongated absorbent pad 12 and a pair of garment attachment panels 14 and 16 .
  • the form and construction of the absorbent pad 12 will be briefly described. It may be similar in form and share many details of construction with the absorbent pads disclosed in U.S. Pat. Nos. 4,701,177 and 4,770,657, both to Ellis et al. and assigned to Kimberly-Clark Corporation. These two patents are incorporated by reference and made a part hereof.
  • the absorbent pad 12 includes an absorbent 18 having two parts, both of which can be made from fluff.
  • the two parts can include a bodyside absorbent portion 20 having a “race track” shape and a narrower, baffle side absorbent portion 22 , in the form of a straight sided hump, which is narrower than the bodyside portion 20 .
  • the absorbent 18 is enclosed between a liquid-permeable cover 24 and a liquid-impermeable baffle 26 .
  • the baffle 26 carries a longitudinally central strip of garment adhesive 30 covered before use by a conventional, removable peel strip or release paper 32 .
  • the cover 24 and the baffle 26 extend beyond the absorbent 18 and are bonded together to form a fringe 34 extending outward from a seal line 36 which closely borders the absorbent 18 and terminates at an outer peripheral edge 38 .
  • the edge seal 34 boarders along the longitudinal sides of the pad 12 to define opposite longitudinal side edges 40 and 42 and extending generally outward from and adjacent to longitudinal side edges 44 and 46 of the absorbent 18 .
  • elongated elastic strips 48 In the longitudinally central portion of the pad 12 , and within the longitudinal side edges 40 and 42 are positioned elongated elastic strips 48 .
  • the elastic strips 48 are incorporated under tension so that, when they are allowed to relax, the tension gathers and elevates each longitudinal side edge portion to define a pair of oppositely aligned elasticized raised side edges 50 and 52 .
  • the raised edges 50 and 52 have inner and outer walls 54 , 56 , 58 and 60 , respectively, formed by the respective extensions of the cover 24 and the baffle 26 .
  • the garment attachment panels 14 and 16 are identical to one another apart from the anchoring elements they carry, and therefore only one will be described.
  • the garment attachment panel 14 consists of a generally rectangular sheet of material which, in assembly, has a fixed or attachment portion 70 and a free portion 72 which is best shown in FIG. 8.
  • the fixed portion 70 overlays and is bonded to the outer wall 58 of the elasticized raised side edge 50 .
  • the attachment area extends from an outer edge 74 , located adjacent to the peripheral edge 38 , to an inner edge or effective point of attachment 76 .
  • the effective point of attachment is equivalent to the lateral limit of the garment attachment panel.
  • the free portion 72 of the garment attachment panel 14 diverges from or hinges at the effective point of attachment 76 .
  • the fixed portion 70 of the garment attachment panel 14 is presented to the outer wall 58 of the elasticized raised side edge 50 so that it shares in the gathering of the side edge 50 .
  • the free portion 72 of the garment attachment panel 14 becomes somewhat concave to the underside of the pad 12 when it assumes its curved form.
  • the elevation of the elasticized raised side edges 50 and 52 directs the free portion 72 of the garment attachment panels 14 and 16 generally downward and inward.
  • Anchoring elements 78 and 80 are secured to the garment attachment panels 14 and 16 .
  • the anchoring elements 78 and 80 include a mechanical fastener of conventional hook and loop type fabric.
  • a relatively small patch 78 of loop material is attached to the garment attachment panel 14
  • a smaller patch 80 of hook material is attached to the garment attachment panel 16 .
  • the anchoring elements 78 and 80 are located so that the garment attachment panels 14 and 16 may be anchored together under the absorbent 18 as is shown in FIG. 3. This invention may be practiced successfully with pads having a wide range of sizes and proportions as indicated in the following-exemplary Table 1. TABLE 1.
  • exemplary ranges of size dimensions in inches for the loop and hook fastener elements 78 and 80 are as follows: TABLE 2 Range Preferred Range Hook element 80 - Width Wh 0.25-1.0 0.25-0.5 Loop element 78 - Width Wl 0.25-1.5 0.5-1.0 Hook element 80 - Length Lh 0.25-3.0 0.25-1.5 Loop element 78 - Length Ll 0.25-3.0 0.5-1.5
  • the scope of this invention also permits the use of a variety of materials as well as variations in configuration.
  • variations may include different methods of obtaining the curvature of the pad 12 and elevating the raised side edges 50 and 52 .
  • Other pad outline shapes are also possible, such as barrel, rectangular or hourglass.
  • the absorbent 18 could extend into the raised side edges 50 and 52 .
  • the elastic strips 48 in the elasticized raised edges 50 and 52 may be made from one of the natural rubbers, from a Kraton based thermal plastic elastomer, or from one of the polyurethanes.
  • Suitable materials for the garment attachment panels 14 and 16 include polymeric films, nonwovens, elastomerics, or composites of these materials.
  • FIGS. 6 and 7 alternative embodiments of the garment attachment panels are shown wherein they are formed integral with the raised side edges of absorbent pad 88 .
  • the pad 88 includes a two-part absorbent 90 enclosed by a cover 92 and a baffle 94 . Both the cover 92 and the baffle 94 extend beyond the periphery of the absorbent 90 to form a fringe 96 .
  • the pad 88 further includes two garment attachment panels 98 and 100 which are similar, and therefore only one will be described. In the garment attachment panel 98 , a narrow inner edge portion 102 is bonded between the edges of the cover 92 and the baffle 94 .
  • the garment attachment panel 98 extends outward and upward and is folded back on itself to define sealed inner and outer walls 104 and 106 .
  • the garment attachment panel 98 ends in a depending free portion 108 .
  • the garment attachment cover 92 , the panel 98 , the inner edge 102 , the baffle 94 , construction adhesive 110 , and the base of the outer wall 106 are all bonded together to establish an elasticized raised side edge 112 .
  • the raised edge 112 and the panel 98 are of the same material, which may be elastic. Other means may also be used to impart curvature to the pad.
  • the inner edge of the bonding or sealing of the materials at the edge of the pad establishes an effective attachment point 114 from which the free or functional portion 108 of the garment attachment panel 98 depends or is hinged.
  • the inner and outer walls 104 and 106 of the elasticized raised side edge 112 and the garment attachment panel 98 are formed from a single sheet of material.
  • an absorbent pad 118 is shown which is similar to that of FIG. 6 except that inner and outer walls 120 and 122 , which form part of an elasticized raised side edge 124 , are not completely sealed together. This enables the upper portion of the raised side edge 124 to form a soft rolled edge 126 .
  • any arrangement should provide an “effective attachment point” on the underside of the raised edge and inset from its outer periphery as exemplified at 76 and 114 above. See particularly FIGS. 6 and 8.
  • the garment attachment panel may, for example, be formed from an extension of the cover and/or the baffle of the absorbent pad. It may be a separate piece of material wrapped over the raised edges 50 and 52 with the free portion 108 of the panel 98 diverging from the underside of the raised edge 112 .
  • the fixed portion 70 of the panel 14 may be bonded between the layered components of the raised edge 50 .
  • the material forming the garment attachment panel 14 emerges to fold downward and inward under the pad 12 .
  • FIG. 11 Another example is shown in FIG. 11.
  • the attachment configuration for a garment attachment panel 14 ′ has been reversed.
  • a fixed portion 70 ′ of the panel 14 ′ has been laid on an underside or outer wall 58 ′ of a normally raised edge 50 ′ with the panel 14 ′ initially directed outward.
  • a free portion 72 ′ is folded back under the raised edge 50 ′ at an effective attachment point 76 ′.
  • the peel strip 32 is removed from the pad 12 exposing the garment attachment adhesive 30 .
  • the garment attachment panels 14 and 16 spread apart, the pad 12 is centered and mounted onto a crotch portion of an undergarment in the usual way.
  • the garment attachment panels 14 and 16 are closed by bringing together the anchoring elements 78 and 80 .
  • the anchoring elements 78 and 80 are relatively small. In fastening the garment attachment panels 14 and 16 , the degree of overlap of the anchoring elements 78 and 80 may vary.
  • the configuration of the sanitary napkin 10 is such that, when the garment attachment panels 14 and 16 are properly fastened, the crotch portion 130 of the undergarment is always confined beneath the pad 12 . This enables the edge of the crotch portion 130 and the panty leg elastic 132 to be disposed laterally no further out than the edge of the absorbent 18 or certainly no higher than its lateral sides. See FIGS. 9 and 10.
  • the limit of lateral disposition of the panty elastic 132 is determined by the “stop” provided at the effective attachment point 76 of the respective garment attachment panels 14 and 16 .
  • the chosen location for the effective attachment point 76 is important to the function of the sanitary napkin 10 . If it is too low on the elasticized raised side edges 50 and 52 , and hence too close to the longitudinal side edges 44 and 46 of the absorbent 18 and to the seal line 36 , any pull or tension set up in the garment attachment panels 14 and 16 when they are fastened will have relatively little effect in controlling the elasticized raised side edges 50 and 52 . If the effective attachment point 76 is too high or too far out on the elasticized raised side edges 50 and 52 , the pull of the garment attachment panels 14 and 16 , when fastened, may force the elasticized raised side edges 50 and 52 down so far as to reduce its effectiveness.
  • the effective width (We) of each of the elasticized raised side edges 50 and 52 is in the range of about 0.25 to about 1 inches.
  • a preferred range of widths (Wa) for the fixed attachment portion 70 of each of the garment attachment panels 50 and 52 is from about 0.125 to about 0.5 inches.
  • a preferred spacing (D) between the effective point of attachment 76 and the absorbent side edges 44 and 46 is in the range of about one-third to three-quarters of the width (We) of the elasticized raised side edges 50 and 52 .
  • panty elastic When the panty elastic is shielded by controlling its position, as in the present invention, rather than by simply covering it with a long garment attachment panel, as in Van Tilburg for example, a shorter garment attachment panel may be used effectively. See the preferred range of panel lengths of about 1.5′′ to about 3.0′′ in Table 1. With shorter panels, the possible discomfort of longer panels and inconvenience of their “popping open” is avoided.
  • Another advantage of the present invention is that the curvature of the raised side edges 50 and 52 allows the garment attachment panels 14 and 16 to stay outward, or open, in positions intermediate those shown in FIGS. 1 and 4, for example, when the user is positioning the pad 12 in the undergarment. This avoids the problem of the panels 14 and 16 getting caught under the pad 12 which sometimes occurs in conventional flat pads with garment attachment panels.
  • FIG. 9 an exemplary configuration of the sanitary napkin 10 mounted on an undergarment, and before being worn, is shown in FIG. 9.
  • the elasticized side edges 50 and 52 are pulled down so that the absorbent 18 arches convexly upward.
  • the anchoring elements 78 and 80 are approximately centered one on the other.
  • FIG. 10 a sanitary napkin is shown during use.
  • the elasticized raised side edges 50 and 52 are partially folded, “gasketing” comfortably against the wearer's thigh 134 .
  • the upwardly convex form of the absorbent 18 fits more closely to the source of the menstrual flow and more comfortably against the wearer's labia majora 136 .
  • Important aspects of the invention are control of the deflectable side edges 50 , 52 , 112 and 124 of the absorbent pad 12 and control of the elastic edges 132 of the crotch portion 130 of an undergarment.
  • the key to the control of the elastic edges 132 of the crotch portion 130 of the undergarment is the disposition during use of the effective attachment point 76 of each of the garment attachment panels 14 and 16 .
  • the disposition of the attachment points 76 establishes a limit or stop for lateral disposition of the panty elastic 132 .
  • the panty elastic 132 is confined to be under the absorbent side edges 44 and 46 or no higher than along side the absorbent 18 . This control prevents the panty elastic 132 from pulling in onto the top of the absorbent 18 . It also ensures that the elasticized raised side edges 50 and 52 remain independent of biasing by the panty elastic 132 .
  • panty elastic disposition control Another positive result of panty elastic disposition control is that, with the panty elastic 132 held under the absorbent side edges 44 and 46 , the panty elastic 132 may help to bias the absorbent 18 upward for a better fit to the body. Still another advantage is that the configuration of the sanitary napkin 10 , and particularly that of the garment attachment panels 14 and 16 , is such that, in preparation for use, a user cannot inadvertently fold and fasten the garment attachment panels 14 and 16 over the panty elastic 132 . This prevents the panty elastic 132 from pulling either of the garment attachment panels 14 and 16 up into the groin.
  • the present invention allows the functional characteristics and advantages of a curved sanitary napkin 10 with elasticized raised side edges 50 and 52 to be preserved while at the same time permitting the garment attachment panels 14 and 16 to more reliably realize their potential for shielding and protection of the crotch portion 130 of an undergarment.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Details Of Garments (AREA)
  • Undergarments, Swaddling Clothes, Handkerchiefs Or Underwear Materials (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
US08/892,744 1992-09-30 1997-07-15 Curved sanitary napkin with garment attachment panels Abandoned US20020177833A1 (en)

Priority Applications (2)

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US08/892,744 US20020177833A1 (en) 1992-09-30 1997-07-15 Curved sanitary napkin with garment attachment panels
US10/407,403 US6902552B2 (en) 1992-09-30 2003-04-04 Curved sanitary napkin with garment attachment panels

Applications Claiming Priority (2)

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US95410292A 1992-09-30 1992-09-30
US08/892,744 US20020177833A1 (en) 1992-09-30 1997-07-15 Curved sanitary napkin with garment attachment panels

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US95410292A Continuation 1992-09-30 1992-09-30

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US10/407,403 Division US6902552B2 (en) 1992-09-30 2003-04-04 Curved sanitary napkin with garment attachment panels

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US10/407,403 Expired - Fee Related US6902552B2 (en) 1992-09-30 2003-04-04 Curved sanitary napkin with garment attachment panels

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SE469621B (sv) † 1990-11-01 1993-08-09 Moelnlycke Ab Absorberande alster med laettboejliga sidoflikar och uppresta vaetskespaerrorgan
US5113705A (en) 1990-12-21 1992-05-19 Siemens Automotive L.P. Functional testing of solenoid valves in air
MX9206146A (es) * 1992-09-30 1994-03-31 Kimberly Clark Co Toalla sanitaria con paneles de sujecion de prenda

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130244853A1 (en) * 2010-12-23 2013-09-19 Gdm S.P.A. Method and unit for folding incontinence pads
US9776824B2 (en) * 2010-12-23 2017-10-03 Gdm S.P.A. Method and unit for folding incontinence pads

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Publication number Publication date
CN1087166C (zh) 2002-07-10
DE69310849T3 (de) 2004-07-29
AU4490393A (en) 1994-04-14
EP0590675B1 (en) 1997-05-21
BR9303700A (pt) 1994-04-05
JPH06125937A (ja) 1994-05-10
EP0590675A1 (en) 1994-04-06
CZ196093A3 (en) 1994-06-15
DE69310849D1 (de) 1997-06-26
US20030195488A1 (en) 2003-10-16
CA2082752C (en) 2002-08-06
ES2101186T5 (es) 2004-07-01
KR100240234B1 (ko) 2000-01-15
MX9206145A (es) 1994-03-31
DE69310849T2 (de) 1997-11-27
AU662068B2 (en) 1995-08-17
ATE153235T1 (de) 1997-06-15
US6902552B2 (en) 2005-06-07
CZ286209B6 (cs) 2000-02-16
ZA935884B (en) 1994-03-11
CA2082752A1 (en) 1994-03-31
SK102593A3 (en) 1994-05-11
KR940006555A (ko) 1994-04-25
EP0590675B2 (en) 2004-01-21
PL300535A1 (en) 1994-04-05
JP3841444B2 (ja) 2006-11-01
PL172910B1 (pl) 1997-12-31
ES2101186T3 (es) 1997-07-01
CN1086414A (zh) 1994-05-11

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