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Publication numberUS3570493 A
Publication typeGrant
Publication dateMar 16, 1971
Filing dateDec 23, 1968
Priority dateDec 29, 1967
Also published asDE1815857A1
Publication numberUS 3570493 A, US 3570493A, US-A-3570493, US3570493 A, US3570493A
InventorsEsko Tapio Olsson
Original AssigneeMoelnlycke Ab
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Sanitary towel
US 3570493 A
Abstract  available in
Images(2)
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Claims  available in
Description  (OCR text may contain errors)

United States Patent [72 Inventor Esko Tapio Olsson Molndal, Sweden [21] Appl. No. 786,196 [22] Filed Dec. 23, 1968 [45] Patented Mar. 16, 1971 [73] Assignee Molnlycke AB Gothenburg, Sweden [32] Priority Dec. 29, 1967 [33] Sweden [31] 18,087/1967 [54] SANITARY TOWEL 3 Claims, 7 Drawing Figs.

[52] US. Cl. [51] Int. Cl. [50] Field of Search [5 6] References Cited UNITED STATES PATENTS 3,371,667 3/1968 Merse 3,371,668 3/1968 Johnson 3,494,362 2/1970 Burgeni 128/290 FOREIGN PATENTS 43,071 8/1926 Norway 128/290 814,498 6/1959 Great Britain 128/290 Primary Examiner-Charles F. Rosenbaum Attorney-Young & Thompson wearer into side leakage avoiding sealing engagement with adjacent leg portions irrespective of any variation in the relative positions thereof. The edges of the towel are curved upward in a prestressed position and are retained in that position by means of a strip of material that extends between the edges of the towel and is of a material that weakens upon contact with A liquid, so that the strip ruptures after the towel is in place.

" Patented, March 16, 1971 0, 3

2 Sheets-Sheet l INVEN'I'OR. [ska TAP/0 04 sso/v Patented March16, 1971 3,570,493

2 Sheets-Sheet 2 SANITARY TOWEL The present invention is concerned with sanitary towels. In conventional sanitary towels the absorption material of the towel is normally enclosed in a separate casing or sheath to form an absorption body. a

One prerequisite of sanitary towels is that said towels when placed in position seal to the highest possible extent against the insides of the thighs of the wearer to. avoid so-called side leakage.

The object of the present invention is to provide a sanitary towel which realizes the aforesaid requirement in a simple and effective manner. This is achieved by a sanitary towel according to the invention which is characterized in that it includes a member which extends in the longitudinal direction of said towel and which is elastically deformable,- particularly in the transverse direction of the towel and which is of such width that in the position of use of the towel said member can be elastically deformed to thereby urge the side edges of the towel situated between the thighs-of the wearer into sealing engagement against the adjacent leg portions irrespective of any variation in the relative position thereof.

The elastic member can be formed in a plurality of ways within the scope of the invention. In a preferred embodiment the member comprises a slab of foam plastic or similar material on which the absorption body is positioned. Instead of the elastic slab, or in combination therewith, a resilient insert can be arranged within or on the absorption body. Alternatively, a portion of the casing of the absorption body can be made of foam plastic or similar elastic material, possibly having for instance a layer of fibrous material positioned on the inside thereof to impart the desired softness to the towel. To facilitate positioning of the towel said towel can be prestressed and retained in the stressed position by means of a strip of liquid-soluble material. When the strip of material is.

moistened by the liquid emanating from the user it ruptures allowing the side edge portion of the towel to spread into sealing engagement with adjacent portions of the body.

A number of suitable embodiments-of the towel according to the invention are shown in cross section in the accompanying drawings.

FIG. 1 shows a sanitary towel according to the invention provided with an elastic member incorporated in the absorption body, FIG. 2 is a diagrammatic view in perspective of the elastic member shown in FIG. 1, FIG. 3. shows the towel with upwardly curved side edges and placed in position between two portions of the body, FIG. 4-shows another embodiment in which the absorption body lies on a slab of elastic material, FIG. 5 shows the towel in FIG. 4 in the position of use, FIG. 6 shows a towel which is held prestressed in the position of use by means of a liquid-soluble material strip, and FIG. 7 shows the towel of FIG. 6 subsequent to rupture of the retaining material strip. r a In the FIGS. there is shown a cross section of an absorption body 1 which consists, in a known manner, of a casing of net material, gauze, nonwoven or the like material encasing a liquid-absorbing substance such as dry defibered cellulose.

completely or partially enclosed by an outer layer of cellular plastic material, rayon fibre, synthetic fibre or nonwoven material to impart a soft surface to the'towel.

FIG. 2 shows an elastic, flexible member in the form of a ladder-shaped member presenting cross ribs 2, and longitudinally extending ribs 3. The flexible member is made of a resilient plastic material and is inserted in the absorption body 1, suitably in the proximity of its bottom side.

FIG. 3 illustrates a cross section of the towel clamped between the insides of two body portions 4,5 indicated by morse lines. The side edge portions of the towel are curved upwards and as a result of the flexible members 2,3 the side edges of said towel are urged into sealing abutment with the body portions 4,5. The manner in which the towel endeavors to conform to the actual width between the aforementioned bod cportions has been indicated raphically with arrows 6.

F 4 illustrates a cross sec IOII of'an absorption body which lies on a slab 7 of foam plastic, foam rubber, acryl fibre or some other similar resilient elastic material. The absorption body and the material slab can be arranged within a net hose 8 which is used to suspend the towel.

The under surface of the absorption body is suitably fixed at its center portion to the slab by gluing 9 or heat sealing, for instance.

FIG. 5 illustrates a cross section of the towel in FIG. 4 in the position of use where the towel functions in the same manner as that described with reference to FIG. 3.

FIG. 6 illustrates a cross section of essentially the same towel as that illustrated in FIG. 4 except that the towel in FIG. 6 is biassed in its position of use. A strip 10 of liquid-soluble material such as cellular plastic extends between the upwardly curved edges of the material slab and is secured thereto by adhesive or heat sealing.

FIG. 7 illustrates a cross section of the towel in FIG. 6 subsequent to said towel being placed in position and subsequent to the strip of liquid-soluble material being ruptured to form two portions l0a,l0b as a result of the liquid emanating from the wearer of the towel. The side edge portions of the material slab 7 abut sealingly with the adjacent body portions 4,5 and adapt themselves to the different distances therebetween.

I claim: e

1. In a sanitary towel comprising an elastically deformable member extending lengthwise of the towel for sealing the edges of the towel against the body of the user, and a body of material absorptive to liquid on said elastically deformable member; the improvement comprising a layer of material that weakens upon contact with liquid and that extends between and retains the edges of the towel closer together than when the elastically deformable member is unstressed, so that upon contact with liquid, said layer ruptures and the elastically deformable member applies the edges of the towel against the body of the user.

2. A towel as claimed in claim 1, said elastically deformable member comprising a slab of elastically deformable material.

3. A towel as claimed in claim I, said elastically deformable member comprising a number of flexible ribs spaced apart lengthwise of the towel and held together by at least one longitudinally extending rib integral therewith.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3371667 *Jun 11, 1964Mar 5, 1968Johnson & JohnsonArticle for absorbing body exudates
US3371668 *Apr 14, 1965Mar 5, 1968Johnson & JohnsonSanitary napkin
US3494362 *May 1, 1967Feb 10, 1970Johnson & JohnsonAbsorbent pad
GB814498A * Title not available
NO43071A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3736931 *Jun 9, 1971Jun 5, 1973J GlassmanCatamenial napkin
US4533356 *Dec 12, 1979Aug 6, 1985Uno Plast A/SSurgical device
US4655760 *Jul 30, 1985Apr 7, 1987Kimberly-Clark CorporationElasticized garment and method of making the same
US4668230 *Jul 9, 1984May 26, 1987Kimberly-Clark CorporationBowed, trough-like absorbent pad
US4865597 *Jul 6, 1987Sep 12, 1989Kimberly-Clark CorporationAbsorbent product with reinforcing member to resist deformation
US4886513 *Mar 10, 1989Dec 12, 1989Kimberly-Clark CorporationAbsorbent pad with reinforcing member to resist deformation
US5171302 *Jan 21, 1992Dec 15, 1992The Procter & Gamble CompanyAbsorbent article with central hinge
US5197959 *Oct 2, 1991Mar 30, 1993The Procter & Gamble CompanyAbsorbent article
US5300055 *Dec 11, 1992Apr 5, 1994The Procter & Gamble CompanyAbsorbent article having a thermoplastic deformable element
US5324278 *May 28, 1992Jun 28, 1994The Procter & Gamble CompanySanitary napkin having components capable of separation in use
US5591150 *May 11, 1994Jan 7, 1997The Procter And Gamble CompanySanitary napkin having a resilient body-conforming portion
US5609588 *Jun 8, 1994Mar 11, 1997Kimberly-Clark CorporationArticle having a non-absorbent resilient layer
US5611790 *Jun 7, 1995Mar 18, 1997The Procter & Gamble CompanyStretchable absorbent articles
US5658269 *Jun 6, 1995Aug 19, 1997The Procter & Gamble CompanyExtensible absorbent articles
US5674212 *Jul 18, 1995Oct 7, 1997The Procter & Gamble CompanyExtensible absorbent articles
US5674214 *Nov 9, 1995Oct 7, 1997The Procter & Gamble CompanySanitary napkin having components capable of separation in use
US5683375 *Aug 21, 1996Nov 4, 1997The Procter & Gamble CompanyExtensible absorbent articles
US5702382 *Jun 6, 1995Dec 30, 1997The Procter & Gamble CompanyExtensible absorbent articles
US5704931 *Jul 30, 1993Jan 6, 1998Mcneil-Ppc, Inc.Absorbent article having a deformation resisting apparatus
US5713884 *Jun 7, 1995Feb 3, 1998The Procter & Gamble CompanyStretchable absorbent articles
US5733274 *Sep 10, 1996Mar 31, 1998The Procter & Gamble CompanySanitary napkin having stiffened center
US5824004 *Jul 23, 1992Oct 20, 1998The Procter & Gamble CompanyStretchable absorbent articles
US6007528 *Dec 31, 1996Dec 28, 1999The Procter & Gamble CompanySanitary napkin having stabilized members in the end regions
US6059764 *Feb 4, 1997May 9, 2000The Procter & Gamble CompanyStretchable absorbent articles
US6162204 *Nov 16, 1998Dec 19, 2000Sca Hygiene Products AbAbsorbent article with improved forming ability
US6284943Dec 13, 1996Sep 4, 2001The Procter And Gamble CompanyAbsorbent article having increased flexibility in use
US6287288Jun 13, 1997Sep 11, 2001The Procter & Gamble CompanyStretchable absorbent articles
US6325786Nov 11, 1997Dec 4, 2001Sca Hygiene Products AbAbsorbent article having increased front portion stiffness
US6346097 *Aug 8, 1997Feb 12, 2002Kimberly-Clark Worldwide, Inc.Personal care product with expandable BM containment
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US6423043Jun 18, 1998Jul 23, 2002Sca Hygiene Products AbAbsorbent articles with improved body contact
US6425890 *Nov 11, 1997Jul 30, 2002Sca Hygiene Products AbAbsorbent article with a raised portion
US6524291Nov 11, 1997Feb 25, 2003Sca Hygiene Products AbAbsorbent article such as a sanitary napkin, an incontinence guard, a panty-liner or the like
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EP0298348A1 *Jun 28, 1988Jan 11, 1989Kimberly-Clark CorporationAbsorbent pad with reinforcing member to resist deformation
EP0335252A2 *Mar 23, 1989Oct 4, 1989THE PROCTER & GAMBLE COMPANYAbsorbent article
EP0604764A1Nov 25, 1993Jul 6, 1994McNEIL-PPC, INC.Disposable sanitary napkin
EP0916328A1 *Nov 12, 1998May 19, 1999SCA Hygiene Products ABAbsorbent article with improved forming ability
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WO1998058614A1 *Jun 18, 1998Dec 30, 1998Anders GustafssonAbsorbent articles with improved body contact
WO1999000093A1Jun 30, 1998Jan 7, 1999Procter & GambleAbsorbent article with multi-layered extensible wings
WO1999000094A1Jun 30, 1998Jan 7, 1999Procter & GambleExtensible crimp seal for sanitary napkins
WO1999001518A1Jun 30, 1998Jan 14, 1999Du PontMethod for making a photodurable aqueous titanium dioxide pigment slurry
Classifications
U.S. Classification604/385.31, 604/372, 604/375, 604/369
International ClassificationA61F13/15
Cooperative ClassificationA61F13/4702, A61F13/4751
European ClassificationA61F13/47A, A61F13/475A