WO1998053782A1 - Emballage d'article absorbant comprenant une couverture laterale de fixation de volets - Google Patents

Emballage d'article absorbant comprenant une couverture laterale de fixation de volets Download PDF

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Publication number
WO1998053782A1
WO1998053782A1 PCT/US1997/009264 US9709264W WO9853782A1 WO 1998053782 A1 WO1998053782 A1 WO 1998053782A1 US 9709264 W US9709264 W US 9709264W WO 9853782 A1 WO9853782 A1 WO 9853782A1
Authority
WO
WIPO (PCT)
Prior art keywords
main
region
main body
body portion
flaps
Prior art date
Application number
PCT/US1997/009264
Other languages
English (en)
Inventor
Maki Hasegawa
Original Assignee
The Procter & Gamble Company
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 The Procter & Gamble Company filed Critical The Procter & Gamble Company
Priority to PCT/US1997/009264 priority Critical patent/WO1998053782A1/fr
Priority to AU33719/97A priority patent/AU3371997A/en
Priority to BR9714850-4A priority patent/BR9714850A/pt
Priority to EP97929729A priority patent/EP0984756A1/fr
Priority to JP10525544A priority patent/JP2000502943A/ja
Priority to CA002291679A priority patent/CA2291679A1/fr
Publication of WO1998053782A1 publication Critical patent/WO1998053782A1/fr

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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
    • A61F13/476—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
    • A61F13/551—Packaging before or after use
    • A61F13/5513—Packaging before or after use packaging of feminine sanitary napkins
    • A61F13/55135—Packaging before or after use packaging of feminine sanitary napkins before use
    • A61F13/5514—Packaging before or after use packaging of feminine sanitary napkins before use each item packaged single

Definitions

  • This invention relates to an absorbent article individually packaged by a wrapper comprising a main wrapper sheet for the absorbent article and a flap fastener cover for flap fasteners of flaps.
  • An absorbent article such as a sanitary napkin comprising a pair of flaps which extend laterally outward from an absorbent means is well known.
  • One type of such an absorbent article comprises a pair of flaps which extend laterally outward from a central region of both longitudinal side edges of an absorbent means.
  • the flaps are intended to be folded around the edges of a wearer's undergarment in the crotch region.
  • the flaps are disposed between the edges of the wearer's undergarment in the crotch region and the wearer's thighs.
  • the flaps are provided with flap fasteners such as adhesive for affixing the flaps to the underside of the wearer's undergarment.
  • the flaps serve at least two purposes.
  • the flaps prevent exudates which otherwise would soil the edges of the wearer's undergarment from doing such.
  • the flaps help stabilize the napkin from shifting out of the position chosen by the wearer. This is especially so when the flaps are affixed to the underside of the undergarment.
  • the flaps of such sanitary napkins may be folded onto the topsheet side or the backsheet side to conserve space during packaging, i.e., the period between manufacture of the sanitary napkin and its intended first use by the wearer. At the time of the first use by the wearer, the flaps are usually unfolded to facilitate installation of the sanitary napkin into the wearer's undergarment.
  • the flap fasteners of the folded flaps are usually covered by a flap fastener cover so as not to inadvertently adhere to each other or another part of the product before the sanitary napkin is used.
  • the flap fasteners of the flaps face outside and are covered by the flap fastener cover thereby bridging the flaps to each other over the topsheet.
  • Japanese Laid- open Patent publication H5-293139 published on November 9, 1993, Japanese Laid-open Patent publication H6-78953 published on March 22, 1994 and Japanese Laid-open Utility-Model publication H6-26835 published on April 12, 1994 disclose sanitary napkins having flaps which are folded onto the topsheet and flap fasteners which are covered by a flap fastener cover.
  • the sanitary napkins disclosed therein further comprise a main fastener for securing the sanitary napkin to the inside of the wearer's undergarment.
  • the main fastener is also covered by a main fastener cover. Therefore, when the sanitary napkin is used, the wearer must remove both the flap fastener cover and the main fastener cover. The wearer must then properly dispose of the various fastener covers to prevent them from becoming litter.
  • Japanese Laid-open Utility-Model publication H5-9526 published on February 9, 1993 and Japanese Laid-open Utility-Model publication H5-9529 published on February 9, 1993 disclose sanitary napkins comprising a sanitary napkin main body with a main body fastener, flaps with flap fasteners and a fastener cover for covering the flap fasteners and the main fastener.
  • the fastener cover comprises flap fastener cover portions and a main fastener cover portion which are connected to each other. Therefore, as the main fastener cover portions are removed from the sanitary napkin main body, the flap fastener cover portion is also removed from the flaps.
  • Japanese Laid-open Utility-Model H7-39820 published on July 18, 1995 discloses a sanitary napkin comprising a sanitary napkin main body having a topsheet, a backsheet, and an absorbent core.
  • the sanitary napkin also comprises a pair of flaps which are folded around the edges of a wearer's undergarment in the crotch region when the sanitary napkin is used.
  • Adhesive layers provided with the main body and the flaps are covered by an adhesive layer cover which may comprise a wrapper for individually packaging the sanitary napkin.
  • the flaps are folded to the inside of the main body.
  • the adhesive layer cover covering the adhesive layers of the main body extends beyond the longitudinal sides and transverse edges of the main body.
  • Japanese Laid-open Utility-Model H6-75446 published on July 18, 1995 discloses a sanitary napkin comprising a sanitary napkin main body and a pair of flaps extending laterally outward from the both sides in the longitudinal direction of the sanitary napkin.
  • the flaps are folded onto a body facing side of the sanitary napkin before the sanitary napkin is used, and are folded around the edges of a wearer's undergarment in the crotch region when the sanitary napkin is used.
  • a garment facing side of the sanitary napkin provided with an adhesive layer is wrapped by a wrapper releasably treated.
  • the wrapped sanitary napkin is folded together with the wrapper about a folding line.
  • This publication further discloses a packaging structure for the sanitary napkin where a part of the wrapper covers the adhesive layers of the flaps. Namely, the transverse edge of the wrapper extends beyond the end edge of the sanitary napkin and is folded towards the adhesive layers of the flaps which are folded onto the topsheet.
  • European Patent publication EP 0 750 896 A2 published on January 2, 1997 discloses a sanitary napkin comprising a napkin body and a pair of flaps extending from transversely opposite side edges of the napkin body. The napkin body is folded longitudinally thereof in a three layer overlapping relationship and the flaps are also folded onto a top surface of the napkin body.
  • Release sheets are releasably bonded onto adhesive zones provided on back surfaces of the napkin body and the flaps, respectively.
  • a wrapping sheet is also folded together with the napkin body so as to wrap the napkin body as well as the flaps, wherein the respective release sheets are fixedly bonded to an inner surface of the wrapping sheet so that the wrapping sheet and the release sheet can be peeled off in the form of an integrated strip-like sheet from the napkin when picking out the napkin from the wrapping sheet.
  • a primary object of the present invention is to provide an improved individually packaged absorbent article.
  • an absorbent article extends in a longitudinal direction and comprises a main body portion having a pair of longitudinal side edges, a pair of end edges, a garment surface, and a body surface.
  • the garment surface of the main body portion may be placed in a wearer's undergarment.
  • the absorbent article comprises a pair of flaps joined to the main body portion and extending laterally outward beyond the longitudinal side edges of the main body portion.
  • the garment surface of each of the flaps comprises a flap fastener.
  • the flaps are folded over the body surface of the main body portion to expose the flap fastener.
  • a wrapper for the absorbent article comprises a main wrapper sheet and a flap fastener cover.
  • the main wrapper sheet comprises a pair of longitudinal side portions, a pair of end portions, an inner surface facing the main body portion and an outer surface.
  • the main wrapper sheet is positioned adjacent to the garment surface of the main body portion.
  • the main wrapper sheet and the main body portion of the absorbent article comprise two transverse axes and three regions divided by the two axes.
  • the three regions comprise a first region into which a majority of the flaps extends, a second region and a third region which position on both longitudinal sides of the first region.
  • the two transverse axes comprise the first axis extending laterally between the first region and the second region and the second axis extending laterally between the first region and the third region.
  • the flap fastener cover comprises a pair of longitudinal side portions, a pair of end portions, a releasable surface facing the flap fastener of the flaps, an opposing surface, a first portion, and a second portion. A majority of the first portion extends in the first region.
  • the flap fastener cover is releasably affixed to the flap fasteners of the flaps.
  • the main wrapper sheet and the main body portion of the absorbent article are folded as a unit about the second axis so that the majority of the flaps superposes with the body surface side of the main body portion in the third region with interposing the first portion of the flap fastener cover therebetween.
  • the main wrapper sheet and the main body portion of the absorbent article are folded as a unit about the first axis so that the body surface side of the main body portion in the second region superposes with the outer surface side of the main wrapper sheet with interposing the second portion of the flap fastener cover therebetween. At least a part of the second portion of the flap fastener cover is joined to the outer surface of the main wrapper sheet.
  • an absorbent article extends in a longitudinal direction and comprises a main body portion having a pair of longitudinal side edges, a pair of end edges, a garment surface provided with a main fastener, and a body surface.
  • the garment surface of the main body portion may be placed in a wearer's undergarment.
  • the absorbent article comprises a pair of flaps joined to the main body portion and extending laterally outward beyond the longitudinal side edges of the main body portion.
  • the garment surface of each of the flaps comprises a flap fastener.
  • the flaps are folded over the body surface of the main body portion to expose the flap fastener.
  • a wrapper for the absorbent article comprises a main wrapper sheet, a main fastener cover and a flap fastener cover.
  • the main wrapper sheet comprises a pair of longitudinal side portions, a pair of end portions, an inner surface and an outer surface.
  • the main fastener cover comprises a pair of longitudinal side portions, a pair of end portions, an inner surface and an outer surface.
  • the inner surface covers the main fastener of the main body portion and at least a part of the outer surface is connected to the inner surface of the main wrapper sheet.
  • the main wrapper sheet and the main body portion of the absorbent article comprise two transverse axes and three regions divided by the two axes. The three regions comprise a first region into which a majority of the flaps extends, a second region and a third region which position on both longitudinal sides of the first region.
  • the two transverse axes comprise the first axis extending laterally between the first region and the second region and the second axis extending laterally between the first region and the third region.
  • the flap fastener cover comprises a pair of longitudinal side portions, a pair of end portions, a releasable surface facing the flap fastener of the flaps, an opposing surface, a first portion, and a second portion. A majority of the first portion extends in the first region.
  • the flap fastener cover is releasably affixed to the flap fasteners of the flaps.
  • the main wrapper sheet and the main body portion of the absorbent article are folded as a unit about the second axis so that the majority of the flaps superposes with the body surface side of the main body portion in the third region with interposing the first portion of the flap fastener cover therebetween.
  • the main wrapper sheet and the main body portion of the absorbent article are folded as a unit about the first axis so that the body surface side of the main body portion in the second region superposes with the garment surface side of the main body portion in the third region with interposing the second portion of the flap fastener cover therebetween. At least a part of the second portion of the flap fastener cover is joined to the main fastener cover.
  • FIG. 1 is a top plan view of a preferred embodiment of the wrapper of the present invention in an opened position with a preferred sanitary napkin disposed thereon and the flaps of the sanitary napkin outstretched.
  • FIG. 2 is a top plan view of the wrapper of the present invention shown in FIG. 1 with the flaps of the sanitary napkin folded over the topsheet.
  • FIG. 3 is a cross-sectional view of FIG. 2 taken along the line III-III.
  • FIG. 4 is a top plan view of the wrapper of the present invention shown in FIG. 1 before the flap fastener cover and the main wrapper sheet are joined.
  • FIG. 5 is a cross-sectional view of an alternate embodiment of the flaps of the sanitary napkin folded over the topsheet.
  • FIG. 6 is a cross-sectional view of FIG. 2 taken along the line VI-VI.
  • FIG. 7 is a perspective view of one preferred wrapper of the present invention.
  • FIG. 8 is a cross-sectional view (taken along the longitudinal centerline) of one preferred wrapper of the present invention with a sanitary napkin therein in a folded configuration.
  • FIG. 9 is a perspective view of one preferred individually packaged absorbent article of the present invention.
  • FIG. 10 is a top plan view of an alternative embodiment wrapper of the present invention with a sanitary napkin placed thereon in substantially the same configuration as FIG. 2.
  • FIG. 11 is a first cross-sectional view (taken along the longitudinal centerline) of the present invention explaining an action of removing a wrapper from a sanitary napkin.
  • FIG. 12 is a second cross-sectional view (taken along the longitudinal centerline) of the present invention explaining an action of removing a wrapper from a sanitary napkin.
  • FIG. 13 is a top plan view of another embodiment of the present invention with the flaps of the sanitary napkin folded over the topsheet.
  • FIG. 14 is a cross-sectional view of FIG. 13 taken along the line XIV-XIV.
  • FIG. 15 is a perspective view of the wrapper shown in FIG. 13.
  • FIG. 16 is a cross-sectional view (taken along the longitudinal centerline) of the wrapper shown in FIG. 13 with a sanitary napkin therein in a folded configuration.
  • the present invention is embodied in a preferred but non-limiting embodiment.
  • the invention comprises a wrapper 78 for a disposable absorbent article, particularly a sanitary napkin 20.
  • the sanitary napkin 20 is used to collect vaginal discharges, such as menses, and prevent soiling of the wearer's clothing by such discharges.
  • the sanitary napkin 20 basically comprises a main body portion 22 and flaps 24.
  • the main body portion 22 of the sanitary napkin 20 may have a fastener, such as a pressure sensitive adhesive fastener 74 thereon for fastening the main body portion 22 in the wearer's undergarment.
  • the flaps 24 preferably each have fasteners (flap fasteners) thereon, such as a pressure sensitive adhesive fastener 76, for releasably affixing the flaps 24 of the sanitary napkin 20 in a configuration folded around the edges of the crotch of the wearer's undergarment.
  • the wrapper 78 of the present invention serves to cover and protect the flap fasteners 76 and the main body fastener 74 (if there is one), and is folded around the sanitary napkin 20 to provide an individual package for the sanitary napkin 20.
  • the sanitary napkin 20 (and the main body portion 22 thereof) has two surfaces, a liquid pervious body-contacting surface or "body surface” 20A that is intended to be worn adjacent to the body of the wearer, and a liquid impervious garment surface 20B.
  • the sanitary napkin 20 is shown in FIG. 1 as viewed from its body surface 20A.
  • the sanitary napkin 20 has two centerlines, a principal longitudinal centerline L and a principal transverse centerline (not shown in FIG. 1).
  • FIG. 1 shows that the main body portion 22 of the sanitary napkin 20 comprises the portion of the sanitary napkin without the flaps 24.
  • the main body portion 22 has two spaced apart longitudinal edges 26, two spaced apart transverse or end edges (or "ends") 28, which together form the periphery 30 of the main body portion.
  • the main body portion 22 also has three sections comprising a central section (first section) 36, one end section (second section) 34 and the other end section (third section) 32.
  • the first section 36 is disposed between the second section 34 and the third section 32.
  • the second section 34 and the third section 32 extend outwardly in the longitudinal direction from the edges of the central section 36 of the main body portion 22.
  • the main body portion 22 and the wrapper 78 are folded into three regions comprising a first region 39, a second region 41, and a third region 43 divided by two fold axes FI and F2 (refer to FIG. 2).
  • the first section 36, the second section 34 and the third section 32 of the main body portion 22 generally extend in the first region 39, the second region 41 and the third region 43, respectively.
  • the main body portion 22 of the sanitary napkin 20 can be of any thickness, including relatively thick, intermediate thickness, relatively thin, or even very thin (or "ultra thin”).
  • An "ultra-thin" sanitary napkin 20 as described in U.S. Patents 4,950,264 and 5,009,653 issued to Osborn preferably has a caliper of less than about 3 millimeters.
  • the embodiment of the sanitary napkin 20 shown in the drawings is intended to be an example of a sanitary napkin of an intermediate thickness.
  • the main body portion 22 of the sanitary napkin 20 may also be relatively flexible, so that it is comfortable for the wearer. It should be understood that the sanitary napkin shown is merely one embodiment, and that the wrapper of the present invention is not limited to use with absorbent articles of the type or having the specific configurations shown in the drawings.
  • FIG. 3 shows the individual components of the main body portion 22 of the sanitary napkin 20.
  • the main body portion 22 of the sanitary napkin 20 preferably comprises at least three primary components. These include a liquid pervious topsheet 38, a liquid impervious backsheet 40, and an absorbent core 42 positioned between the topsheet 38 and the backsheet 40.
  • the topsheet, the backsheet, and the absorbent core may be assembled in a variety of configurations known in the art (including layered or "sandwich” configurations and wrapped or “tube” configurations). Suitable materials for the components of the main body portion 22, and some of the various configurations in which such components can be assembled are described generally in U.S.
  • Patent 4,321,924 entitled “Bordered Disposable Absorbent Article” issued to Ahr on March 30, 1982; U.S. Patent 4,425,130, entitled “Compound Sanitary Napkin” issued to DesMarais on January 10, 1984; U.S. Patent 4,950,264, entitled “Thin, Flexible Sanitary Napkin” issued to Osborn on August 21, 1990: U.S. Patent 5,308,346, entitled “Elasticized Sanitary Napkin” issued to Sneller, et al. on May 3, 1994; and U.S. Patent 5,389,094, entitled “Absorbent Article Having Flaps and Zones of Differential Extensibility” issued to Lavash, et al. on February 14, 1995.
  • the main body portion 22 of the sanitary napkin 20 may also be comprised of one or more extensible components such as those sanitary napkins, and the like described in U.S. Patent Application Serial Nos. 07/915,133 and 07/915,284, both filed July 23, 1992, in the name of Osborn, et al. (PCT Publication Nos. WO 93/01785 and 93/01786, both published February 4, 1993).
  • FIGS. 1 - 3 show a preferred embodiment of the sanitary napkin 20 assembled in a sandwich construction in which the topsheet 38 and the backsheet 40 have length and width dimensions generally larger than those of the absorbent core 42.
  • the topsheet 38 and the backsheet 40 extend beyond the edges of the absorbent core 42 to form portions of the periphery 30.
  • the topsheet 38 is preferably joined to the body-facing side of the absorbent core 42 and the backsheet 40 is preferably joined to the garment-facing side of the absorbent core 42.
  • the topsheet 38 and backsheet 40 can be joined to the absorbent core 42 in any suitable manner known in the art for this purpose, such as by an open pattern of adhesives.
  • the portions of the topsheet 38 and backsheet 40 that extend beyond the edges of the absorbent core 42 are preferably also joined to each other. These portions of the topsheet 38 and backsheet 40 can also be joined in any suitable manner known in the art. Preferably, in the embodiment shown, these portions of the topsheet 38 and backsheet 40 are joined using adhesives over substantially the entire portions that extend beyond the edges of the absorbent core 42, and a crimp seal around the periphery 30 of the main body portion 22 where the topsheet 38 and backsheet 40 are densified by the application of pressure or heat and pressure.
  • the sanitary napkin 20 shown in FIGS. 1 - 3, as discussed above, also comprises a pair of flaps 24 that are joined to the main body portion 22.
  • the flaps 24 extend laterally outward beyond the longitudinal side edges 26 of the main body portion 22 from their proximal edges 44 to their distal edges (or "free ends") 46.
  • the flaps 24 extend laterally outward from at least a part of the first section 36 of the main body portion 22 and majority of the flaps 24 extends in the first region 39 divided by the fold axes FI and F2.
  • the flaps 24 can be joined to the main body portion 22 in any suitable manner.
  • the term "joined”, as used herein, encompasses configurations in which an element is directly secured to another element by affixing the element directly to the other element; configurations in which the element is indirectly secured to the other element by affixing the element to intermediate member(s) which in turn are affixed to the other element; and configurations in which one element is integral with another element, i.e., one element is essentially part of the other element.
  • the flaps 24 are integral with the main body portion 22 (that is, the flaps 24 comprise integral extensions of the backsheet 40.
  • the flaps 24 may comprise integral extensions of the topsheet 38 and the backsheet 40.).
  • the flaps 24 can comprise one or more separate components that are joined to the garment-facing side of the main body portion 22.
  • the flaps 24 comprise a separate component that is joined to the garment-facing side of the main body portion 22.
  • the flaps 24 are preferably otherwise unattached to the garment-facing side of the main body portion 22 of the sanitary napkin 20 between the points where they are attached to the main body portion 22 and the longitudinal side edges 26 of the main body portion 22.
  • the flaps 24 in these latter embodiments can be joined to the garment-facing side of the main body portion 22 by any suitable attachment mechanism. Suitable attachment mechanisms include, but are not limited to adhesives, and the like.
  • the flaps 24 may be joined to the main body portion 22 by different attachment method from each other.
  • junctions The places or regions on the sanitary napkin 20 where the flaps 24 are joined to (or extend from) the main body portion 22, are referred to herein as "junctures". These regions will typically be longitudinally-oriented (or “longitudinal") junctures, such as lines of juncture 48. These regions can be any of various curved or straight lines, but they are not limited to lines. Thus, the junctures can comprise flanges, strips, intermittent lines, and the like.
  • the flaps 24 may be of any configuration desired, with one preferred configuration being shown in FIG. 1.
  • FIG. 1 shows that the flaps 24 are provided with zones of extensibility (or “zones of differential extensibility") 56 in the front edge and the back edge of each flap 24.
  • the zones of extensibility 56 relieve stresses which are created in the flaps 24 by the folding of the flaps 24 around the crotch of the wearer's undergarment.
  • the zones of extensibility 56 thereby help eliminate bunching of the flaps 24 caused by said stresses.
  • the zones of extensibility 56 comprise pre-corrugated or "ring rolled" regions of the flaps 24 in which the corrugations 58 define ridges and valleys that are oriented at an angle to the principal longitudinal centerline L.
  • Suitable structures for providing the flaps 24 with zones of extensibility 56 are described in greater detail in U.S. Patent 5,389,094 issued to Lavash, et al. and in commonly assigned copending U.S. Patent Application Serial No. 08/380,769, entitled "Absorbent Article Having Flaps With Gathered Portions" filed in the name of Sue A. Mills, et al. on January 30, 1995.
  • the sanitary napkin 20 preferably also has fasteners for securing the sanitary napkin 20 in place in a wearer's undergarment.
  • FIGS. 1 and 2 show a preferred arrangement of fasteners which comprises a main body portion (or central pad) fastener, such as central pad adhesive 74, and flap fasteners, such as flap adhesives 76.
  • the fasteners used with the sanitary napkin 20 are not limited to adhesive fasteners. Any suitable type of fastener known in the art can be used for this purpose.
  • the sanitary napkin 20 could be secured in place in a wearer's undergarment by mechanical fasteners, such as VELCRO®, or by a combination of adhesive and mechanical fasteners.
  • the central pad adhesive 74 and the flap adhesives 76 can be provided in any suitable configuration.
  • the central pad adhesive 74 is provided in the form of a longitudinally oriented strip of adhesive that is centered about the principal longitudinal centerline L.
  • the flap adhesives 76 are provided in the form of a generally rectangular patch of adhesive on each flap 24.
  • the central pad adhesive 74 provides an adhesive attachment means for securing the main body portion 22 of the sanitary napkin 20 in the crotch portion of a panty.
  • the flap adhesives 76 are used to assist in maintaining the flaps 24 in position after they are wrapped around the edges of the crotch portion of the panty.
  • the flaps can be maintained in position by attaching the flaps 24 to the undergarment, or to the opposing flap.
  • FIGS. 1 - 4 and 6 - 7 show one preferred version of the wrapper 78 of the present invention.
  • the wrapper generally designated by reference number 78 comprises several elements. These elements can comprise integral portions of a single member or article, or they can comprise separate components joined to a member or article.
  • the elements comprising the wrapper 78 include: a main wrapper sheet 80; an optional release component, such as a release paper (or release coating) 82 disposed on one side of the main wrapper sheet 80; a flap fastener cover, such as a flap adhesive cover 81.
  • the main wrapper sheet 80 (or “wrapper sheet”) is the portion of the wrapper 78 which will be folded around the sanitary napkin 20 to provide an individual package for the sanitary napkin 20.
  • the main wrapper sheet 80 preferably covers and is releasably attached to the central pad adhesive 74.
  • the main wrapper sheet 80 preferably has dimensions that are slightly larger than those of the main body portion 22 of the sanitary napkin 20.
  • the main wrapper sheet 80 has longitudinal side portions 80D which extend beyond the longitudinal side edges 26 of the main body portion 22 of the sanitary napkin 20.
  • the main wrapper sheet 80 preferably also has a first end portion 80A and a second end portion 80B which extend beyond the end edges 28- of the main body portion 22 of the sanitary napkin 20. It is recognized, however, that satisfactory protection of sanitary napkin 20 may be afforded by a wrapper which is not larger than the main body portion 22 of the sanitary napkin 20.
  • the main wrapper sheet 80 can be made from any suitable material.
  • the main wrapper sheet 80 is preferably manufactured from a thin flexible material which is liquid impermeable so that the wrapper 78 will be suitable for wrapping and disposing of a used sanitary napkin 20.
  • a thin flexible material which is liquid impermeable so that the wrapper 78 will be suitable for wrapping and disposing of a used sanitary napkin 20.
  • polyethylene films have been found to work well.
  • the main wrapper sheet 80 can be provided with the optional release component, such as release paper (or release coating) 82 so that the main wrapper sheet 80 will release from the central pad adhesive 74 when the wearer removes the sanitary napkin 20 from the wrapper 78.
  • release paper or release coating
  • it can comprise any suitable material known in the art for this purpose, such as coated papers. Suitable release papers are described in U.S. Patent 4,917,697.
  • Such a release paper 82 can be laminated to the inside surface of the main wrapper sheet 80 as shown in FIGS. 3 and 6.
  • the coating can be applied directly to the inside surface of the main wrapper sheet 80.
  • Such a coating can comprise any material known in the art for this purpose, with silicone coatings being preferred.
  • the coating 82 may be provided by coating only that zone of the main wrapper sheet 80 which will substantially contact the central pad adhesive 74.
  • the entire inside surface of the main wrapper sheet 80 may be coated. Coating the entire inside of a wrapper is disclosed in U.S. Patent 5,181,610 entitled “Flexible Container with Nonstick Interior” which issued to Quick et al. on January 26, 1993.
  • the flap adhesive cover (or “flap release strip”) 81 covers and protects the flap adhesives 76, and maintains the flaps 24 in position folded over the topsheet 38 for packaging.
  • the flap adhesive cover 81 positions in the third region 43 and adjacent to the second end portion 80B of the main wrapper sheet 80 in a folded configuration.
  • the flap adhesive cover 81 is folded to interpose the second end portion 80B and the end edge 28 of the sanitary napkin 20.
  • the flap adhesive cover 81 is preferably joined to the main wrapper sheet 80.
  • the flap adhesive cover 81 preferably may extend in the first region 39 in a stretched configuration before the flap adhesive cover 81 is folded and joined to the main wrapper sheet 80.
  • the flap adhesive cover 81 preferably comprises a single sheet having a first end portion 81C, a second end portion 81D and a pair of longitudinal side portions 8 IE.
  • the flap adhesive cover 81 also comprises a transverse fold axis F3, a first portion 84 and a second portion 85.
  • the transverse fold axis F3 divides the flap adhesive cover 81 into the first portion 84 and the second portion 85.
  • the first portion 84 extends from the transverse fold axis F3 toward the fold axis F2 generally in the first region 39 and the second portion 85 extends from the transverse fold axis F3 toward the first end portion 80A of the main wrapper 80 generally in the second region 41.
  • the first portion 84 covers and protects the flap adhesives 76 and the second portion 85 is joined to the main wrapper sheet 80.
  • the flap adhesive cover 81 also has two faces, one of which is a non-stick face (or releasable face) 81 A, which is capable of releasable attachment with the flap fasteners, and an opposite face or side 8 IB.
  • the non-stick face 81 A of the flap adhesive cover 81 faces the flap adhesives 76 in a stretched configuration so that it will be able to releasably adhere to the flap adhesive 76.
  • the non-stick face 81 A can be provided by attaching a separate release paper or element to the flap adhesive cover 81 which is treated with a non-stick material, or by treating all or a portion of the flap adhesive cover 81 with a nonstick coating, such as by silicone coating a portion of the flap adhesive cover 81.
  • the flap fasteners 76 comprise mechanical fasteners, such as VELCRO® fasteners
  • the non-stick face may be provided by a nonwoven material capable of releasably engaging the mechanical fastening material.
  • the opposing side 8 IB faces away from the flap adhesives 76.
  • the opposing side 81B of the flap adhesive cover 81 need not have, and preferably does not have, a release coating thereon.
  • the flap adhesive cover 81 is joined to the main wrapper sheet 80 in a folded configuration.
  • the flap adhesive cover 81 is folded about the transverse fold axis F3 so that the main wrapper sheet 80 in the third region 43 is interposed between the first portion 84 and the second portion 85 of the flap adhesive cover 81.
  • the flap adhesive cover 81 may be folded about the transverse fold axis FI.
  • the fold transverse axis F3 may coincide with the fold axis FI.
  • the opposing side 8 IB faces inside and the non-stick face
  • the opposing side 81B of the second portion 85 is joined to the outer surface of the main wrapper sheet 80 in the third region 43 adjacent to the second end portion 80B of the main wrapper sheet 80 by applying adhesive layer 83.
  • the flap adhesive cover 81 can be of any suitable size and shape, though the figures depict a flap adhesive cover 81 which is only of sufficient width and length to cover and protect the flap adhesives 76.
  • the wrapper 78 preferably also comprises an optional package fastener 86 for retaining the package formed by folding the wrapper and sanitary napkin in its folded configuration.
  • the package fastener 86 may be joined to the first end portion 80 A of the main wrapper sheet.
  • the package fastener 86 is preferably both releasably attachable to the package and resealable.
  • the package fastener 86 may be comprised of any releasably attachable and resealable fastener known in the art, such as spots or patches of adhesive, tapes, and mechanical fasteners. A tape tab with a pressure sensitive adhesive located thereon has been found to work well.
  • the package fastener 86 can be disposed at any suitable location on the wrapper 78. In the embodiment shown in FIGS. 1 and 2, the package fastener 86 is preferably positioned at opposing first end portion 80A of the main wrapper sheet 80.
  • the garment- facing side 20B of the main body portion 22 is placed on top of the main wrapper sheet 80.
  • the sanitary napkin 20 is positioned so that the central pad fastener 74 lies over the release paper or release coating 82 on the main wrapper sheet 80.
  • the flaps 24 are then preferably folded over the topsheet 38 so that the flaps 24 are in the configuration shown in FIGS. 2 and 3. Folding the flaps 24 in the configuration shown in FIGS. 2 and 3 exposes the patches of adhesive 76 disposed on the garment-facing side of flaps 24 and causes the flaps 24 to cover at least a portion of the topsheet 38.
  • Folding the flaps 24 over the topsheet 38 can, thus, be considered to provide a degree of protection to prevent the topsheet 38 from becoming soiled prior to use.
  • the flaps 24 can be folded over the topsheet 38 so that one of the flaps 24 at least partially overlays the other flap 24 as shown in FIG. 5.
  • the flap 24B overlays, attaches to, and protects the flap attachment means 76 of the flap 24A.
  • the flap adhesive cover 84 will then overlay, attach to and protect the flap fastener 76 of the flap 24B.
  • the sanitary napkin 20 and main wrapper sheet 80 will then preferably be folded into three regions that are defined by the fold axes FI and F2 shown in FIG. 2.
  • the fold axes FI and F2 will divide both the sanitary napkin 20 and the main wrapper sheet 80 into three regions comprising the first region 39, the second region 41 and the third region 43.
  • the central region (the first region) 39 lies between preferred fold axes FI and F2.
  • the second and third regions 41 and 43 lie longitudinally outboard of the fold axes FI and F2.
  • the main body portion 22 is also separated at the fold axes FI and F2 into three sections comprising the first section 36, the second section 34, and the third section 32.
  • Each section 36, 34 and 32 generally extends in each region 39, 41 and 43 respectively.
  • FIG. 8 depicts the package for the sanitary napkin formed by folding the wrapper 78 and sanitary napkin 20 in one preferred configuration for shipment, sale, and convenient carrying by the wearer.
  • the first portion 84 of the flap adhesive cover 81 is placed over the sanitary napkin 20 in the third region 43 so that the non-stick face 81 A of the flap adhesive cover 81 faces outside (refer to FIG. 2).
  • FIG. 8 depicts the package for the sanitary napkin formed by folding the wrapper 78 and sanitary napkin 20 in one preferred configuration for shipment, sale, and convenient carrying by the wearer.
  • the third region 43 (i.e., the second end portion 80B of the main wrapper 80, along with the third section 32 of the main body portion 22, and the folded flap fastener cover 81) is folded about the fold axis F2 onto the first region 39 (i.e., the central portion 80C of the main wrapper 80, the first section 36 of the main body portion 22, the flaps 24 and the flap adhesives 76).
  • the non-stick face 81 A of the first portion 84 of the flap adhesive cover 81 is placed over the flap fasteners 76 and is releasably attached to each adhesive patch 76.
  • the flap adhesive cover 81 provides a connection between each flap 24 that spans the flaps 24, thereby keeping the flaps 24 in the desired position until the flap adhesive cover 81 is removed.
  • the second region 41 i.e., the first end portion 80A of the main wrapper 80, along with the second section 34 of the main body portion 22
  • the second region 41 is folded about the fold axis FI onto the third region 43.
  • each longitudinal side edge 80D of the main wrapper sheet 80 is then frangibly sealed after the sanitary napkin 20 and the wrapper 78 are in the folded configuration shown in FIG. 8.
  • the frangible sealing of the side edges 80D of the main wrapper sheet 80 can be accomplished by any suitable sealing technique.
  • the longitudinal side edges 80D may be heat sealed, glued, or ultrasonically bonded as shown in FIG. 9. The entire sanitary napkin 20 is thereby protected until the wrapper 78 is opened. Suitable methods for frangibly sealing the longitudinal side edges are described in U.S. Patent 4,556,146 issued to Swanson.
  • the various embodiments of the wrapper 78 described herein can be made in any suitable manner.
  • the flap adhesive cover 81 may be made of the same material as the main wrapper sheet or any adhesive cover material known in the art.
  • the flap adhesive cover 81 if separate elements, can be joined to the main wrapper sheet 80 at any time during the manufacture of the individually packaged sanitary napkin 20 of the present invention.
  • the flap adhesive cover 81 will be joined to the main wrapper sheet 80 after the sanitary napkin 20 is already placed on the main wrapper sheet 80. This will eliminate the need to temporarily remove the flap adhesive cover 81 from the main wrapper sheet 80 to allow the sanitary napkin 20 to be placed on the main wrapper sheet 80.
  • the release paper or release coating 82 on the main wrapper sheet 80, the non-stick surface 81 A on the flap adhesive cover 81 is preferably applied before the flap adhesive cover 81 is joined to the main wrapper sheet 80.
  • the flap adhesive cover 81 may be placed onto the flaps 24 as shown in FIG. 10 before the flap adhesive cover 81 is joined to the main wrapper sheet 80.
  • the non-stick surface 81 A of the flap adhesive cover 81 covers the flap adhesives 76.
  • the flap adhesive cover 81 covers and protects majority of the body contacting surface 20 A from contamination while manufacturing the absorbent article.
  • the opposing sides 81B of the second portion 85 which are not treated releasably may be provided with the adhesive layer 83 adjacent to the second end portion 8 ID either before or after the flap adhesive cover 81 is placed onto the flaps 24.
  • the adhesive layer 83 may be provided with the region 83 A of outer surface of the main wrapper sheet 80 in the third region 43.
  • the third region 43 is folded onto the first region 39 about the fold axis FI.
  • the second region 41 is folded onto the third region 43 which is already folded onto the first region 39.
  • the adhesive layer 83 applied to the flap adhesive cover 81 is undetachably joined to the region 83 A in the second end portion 80B of the main wrapper sheet 80.
  • the flap adhesive cover 81 is removed from the flaps 24 but it stays with the second end portion 80B of the main wrapper sheet 80.
  • the consumer will ordinarily carry the individually packaged sanitary napkin of the present invention in the form depicted in FIGS. 8 and 9.
  • the individually packaged sanitary napkin of the present invention may be opened by peeling the tape tab 86 from the wrapper 78 and breaking the frangible seals along the longitudinal side edges 80D of the main wrapper sheet 80. This gives the consumer access to the end edge 28 of the main body portion 22 of the second region 41. The consumer may then take hold of the end edge 28 of the main body portion 22 of the second region 41 and pull the tape tab 86 from the sanitary napkin 20 as shown in FIG. 11. As the sanitary napkin 20 is separated from the wrapper 78, the central pad adhesive 74 is separated from the release paper 82.
  • the first portion 84 of the flap adhesive cover 81 begins to separate from the flap adhesives 76 provided on the flaps 24 as shown in FIG. 12.
  • the sanitary napkin 20 is further pulled from the wrapper 78, the sanitary napkin 20 and the wrapper 78 are separated from one another.
  • the separation of the sanitary napkin 20 from the wrapper 78 is preferably achieved in a single motion.
  • the consumer may fold the wrapper 78, secure the wrapper 78 in its folded orientation by reattaching resealable tape tab 86 to wrapper 78.
  • the consumer may then store the folded wrapper 78 for remapping and disposing of the used sanitary napkin.
  • the wearer need not worry about collecting and disposing of loose flap adhesive release strips, that were previously required, since all release strips are attached to or integral with the wrapper 78.
  • the present invention therefore, provides the wearer with a clean sanitary napkin 20 which is easily installed and without extra pieces of waste which must be collected.
  • FIGS. 13 to 16 show another preferred embodiment of the present invention.
  • the sanitary napkin 20 shown in FIG. 13 generally has the same structure as the sanitary napkin shown in FIGS. 1 and 2.
  • the wrapper 178 comprises several elements.
  • the elements comprising the wrapper 178 include: a main wrapper sheet 180; a release paper (main fastener cover) 182 disposed on one side of the main wrapper sheet 180; a flap adhesive cover 181.
  • the flap adhesive cover 181 generally has the same structure as the flap adhesive cover shown in FIG. 1 and 2.
  • the release paper 182 comprises a pair of longitudinal side portions 182A, a pair of end portions 182B and 182C, an inner surface 182D and an outer surface 182E.
  • the inner surface 182D covers the central pad adhesive 74 of the main body portion 22.
  • At least a part of the outer surface 182E is connected to the inner surface of the main wrapper sheet 180.
  • the end portion 182B of the release paper 182 in the third region 43 also extends beyond the second end portion 180 B of the main wrapper sheet 180.
  • the outer surface 182E of the end portion 182B is exposed outside.
  • FIG. 16 depicts the package for the sanitary napkin formed by folding the wrapper 178 and sanitary napkin 20 in one preferred configuration for shipment, sale, and convenient carrying by the wearer.

Abstract

Cette invention concerne un article absorbant tout en longueur qui possède une partie corps principal (22) comprenant les éléments suivants: deux bords latéraux longitudinaux, deux bords d'extrémité, une surface orientée côté sous-vêtements et une surface orientée côté corps. L'article absorbant comprend deux volets (24) qui sont fixés à la partie corps principal et qui s'étendent latéralement et vers l'extérieur au-delà des bords latéraux longitudinaux de ladite partie corps principal. La surface orientée côté sous-vêtements de chacun des volets comporte un fixateur (76) de volet. Les volets sont repliés sur la surface orientée côté corps de la partie corps principal de manière à exposer le fixateur de volet. Un emballage (78) destiné à l'article absorbant comprend une feuille d'emballage principale (80) ainsi qu'une couverture (81) de fixateur de volet. Cette couverture comprend deux parties latérales et longitudinales, deux parties d'extrémité, une surface adhésive faisant face au fixateur de volets, une surface opposée, ainsi qu'une première partie et une seconde partie. La majorité de la première partie dépasse dans la première zone, tandis que la couverture de fixateurs de volets est fixée de manière amovible auxdits fixateurs. La feuille d'emballage principale et la partie corps principal de l'article absorbant sont pliées d'une seule pièce autour du second axe, ceci de manière à ce que la majeure partie des volets se superpose au côté de la surface orientée côté corps de la partie corps principal dans la troisième zone, la première partie de la couverture de fixateurs de volets s'y trouvant intercalée. Une partie au moins de la seconde partie de la couverture de fixateurs de volets est fixée à la surface externe de la feuille d'emballage principale.
PCT/US1997/009264 1997-05-30 1997-05-30 Emballage d'article absorbant comprenant une couverture laterale de fixation de volets WO1998053782A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
PCT/US1997/009264 WO1998053782A1 (fr) 1997-05-30 1997-05-30 Emballage d'article absorbant comprenant une couverture laterale de fixation de volets
AU33719/97A AU3371997A (en) 1997-05-30 1997-05-30 Absorbent article wrapper comprising a side flap fastener cover
BR9714850-4A BR9714850A (pt) 1997-05-30 1997-05-30 Envoltório para artigo absorvente que compreende uma cobertura para a fixação de aba lateral
EP97929729A EP0984756A1 (fr) 1997-05-30 1997-05-30 Emballage d'article absorbant comprenant une couverture laterale de fixation de volets
JP10525544A JP2000502943A (ja) 1997-05-30 1997-05-30 サイドフラップファスナーカバーを備える吸収体ラッパー
CA002291679A CA2291679A1 (fr) 1997-05-30 1997-05-30 Emballage d'article absorbant comprenant une couverture laterale de fixation de volets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1997/009264 WO1998053782A1 (fr) 1997-05-30 1997-05-30 Emballage d'article absorbant comprenant une couverture laterale de fixation de volets

Publications (1)

Publication Number Publication Date
WO1998053782A1 true WO1998053782A1 (fr) 1998-12-03

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Application Number Title Priority Date Filing Date
PCT/US1997/009264 WO1998053782A1 (fr) 1997-05-30 1997-05-30 Emballage d'article absorbant comprenant une couverture laterale de fixation de volets

Country Status (5)

Country Link
EP (1) EP0984756A1 (fr)
JP (1) JP2000502943A (fr)
AU (1) AU3371997A (fr)
CA (1) CA2291679A1 (fr)
WO (1) WO1998053782A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0963748A3 (fr) * 1998-06-08 2000-04-05 Johnson & Johnson Industria e Comercio Ltda. Article absorbant préemballé
WO2002085277A3 (fr) * 2001-04-20 2003-07-03 Procter & Gamble Serviette hygienique a laquelle est associee un article nettoyant
US7407496B2 (en) 2003-06-06 2008-08-05 3M Innovative Properties Company Fastening film system and assembly comprising a fastening film system and a substrate
US7897078B2 (en) 2004-03-09 2011-03-01 3M Innovative Properties Company Methods of manufacturing a stretched mechanical fastening web laminate
US7972318B2 (en) 2005-08-09 2011-07-05 The Procter & Gamble Company Individually-packaged hygiene article and absorbent article provided therewith
US9155669B2 (en) 2003-06-06 2015-10-13 3M Innovative Properties Company Fastening film system and assembly comprising a fastening film system and a substrate
US9775752B2 (en) 2011-12-19 2017-10-03 Kimberly-Clark Worldwide, Inc. Individually packaged absorbent article

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4321924A (en) 1980-05-12 1982-03-30 The Procter & Gamble Company Bordered disposable absorbent article
US4425130A (en) 1981-06-12 1984-01-10 The Procter & Gamble Company Compound sanitary napkin
US5308346A (en) 1991-12-20 1994-05-03 The Procter & Gamble Company Elasticized sanitary napkin
US5389094A (en) 1991-10-01 1995-02-14 The Procter & Gamble Company Absorbent article having flaps and zones of differential extensibility
EP0750896A2 (fr) 1995-06-30 1997-01-02 Uni-Charm Corporation Serviette hygiénique emballée séparément
GB2306428A (en) * 1995-10-30 1997-05-07 Moelnlycke Ab Individual wrapping for absorbent products with attachment flaps

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4321924A (en) 1980-05-12 1982-03-30 The Procter & Gamble Company Bordered disposable absorbent article
US4425130A (en) 1981-06-12 1984-01-10 The Procter & Gamble Company Compound sanitary napkin
US5389094A (en) 1991-10-01 1995-02-14 The Procter & Gamble Company Absorbent article having flaps and zones of differential extensibility
US5308346A (en) 1991-12-20 1994-05-03 The Procter & Gamble Company Elasticized sanitary napkin
EP0750896A2 (fr) 1995-06-30 1997-01-02 Uni-Charm Corporation Serviette hygiénique emballée séparément
GB2306428A (en) * 1995-10-30 1997-05-07 Moelnlycke Ab Individual wrapping for absorbent products with attachment flaps

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0963748A3 (fr) * 1998-06-08 2000-04-05 Johnson & Johnson Industria e Comercio Ltda. Article absorbant préemballé
US6063065A (en) * 1998-06-08 2000-05-16 Johnson & Johnson Industria E. Comercio Ltda Prepackaged absorbent article with partially non-coextensive wrapper
AU741884B2 (en) * 1998-06-08 2001-12-13 Johnson & Johnson Industria E Comercio Ltda A prepackaged article
WO2002085277A3 (fr) * 2001-04-20 2003-07-03 Procter & Gamble Serviette hygienique a laquelle est associee un article nettoyant
US7407496B2 (en) 2003-06-06 2008-08-05 3M Innovative Properties Company Fastening film system and assembly comprising a fastening film system and a substrate
US9155669B2 (en) 2003-06-06 2015-10-13 3M Innovative Properties Company Fastening film system and assembly comprising a fastening film system and a substrate
US7897078B2 (en) 2004-03-09 2011-03-01 3M Innovative Properties Company Methods of manufacturing a stretched mechanical fastening web laminate
US7972318B2 (en) 2005-08-09 2011-07-05 The Procter & Gamble Company Individually-packaged hygiene article and absorbent article provided therewith
US9775752B2 (en) 2011-12-19 2017-10-03 Kimberly-Clark Worldwide, Inc. Individually packaged absorbent article

Also Published As

Publication number Publication date
CA2291679A1 (fr) 1998-12-03
AU3371997A (en) 1998-12-30
EP0984756A1 (fr) 2000-03-15
JP2000502943A (ja) 2000-03-14

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