Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3642001 A
Publication typeGrant
Publication dateFeb 15, 1972
Filing dateJul 27, 1970
Priority dateJul 27, 1970
Publication numberUS 3642001 A, US 3642001A, US-A-3642001, US3642001 A, US3642001A
InventorsReinhardt N Sabee
Original AssigneeReinhardt N Sabee
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Disposable diaper or the like
US 3642001 A
Abstract
A fundamentally conventional diaper having an absorbent pad between an impervious backing material and a pervious facing has its margins folded toward each other with the backing material outermost. Each margin is provided with an adhesively coated tab for use in applying the diaper, a portion of the length of each tab being adherent to the exposed plastic backing of the diaper and another portion being folded back on itself with the coating exposed. At least one such folded back portion is held in position by a spot of hot melt adhesive which connects it to the underlying part of the tab. A strip of polyethylene releasably engages the exposed adhesive surfaces of respective tabs and preferably spans the gap between them whereby a single release facing strip of approximately half the length normally used not only protects the adhesive surfaces of both tabs but also connects two margins of the folded diaper.
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

United States Patent Sabee Feb. 15, 1972 DISPOSABLE DIAPER OR THE LIKE Primary Examiner-Charles F. Rosenbaum 72 Inventor: Reinhardt N. Sabee, 72s South Summit Street, Appleton, Wis. 5491 l l 57] ABSTRACT Filed: July 1970 A fundamentally conventional diaper having an absorbent pad I 2] 1 Appl. No.: 58,281 between an impervious backing material and a pervious facing has its margins folded toward each other with the backing material outennost. Each margin is provided with an adhesive- [52] U5. L ..l28/287 y coated tab for use in applying the diaper a portion 0f the [51] Int. (J. ..A611 13/16 length of each tab being adherent to the expmcd pkmic 16%| Held 01 Search ..128/284, 286, 287 backing of the diaper and another Pom-on being folded back on itself with the coating exposed. At least one such folded is References back portion is held in position by a spot of hot melt adhesive UNITED STATES PATENTS which connects it to the underlying part of the tab. A strip of polyethylene releasably engages the exposed adhesive sur- 2,834,347 5/1958 Connally 128/284 faces f respective t b d preferably spans the gap between 3,180,335 4/1965 Duncan et al.. ....l28/287 them whereby a single release facing strip of approximately 3.2217733 I2/ 1965 Ekbelg et aim half the length normally used not only protects the adhesive 3,426,756 2/ 1969 Romanek...... ....l28/287 surfaces of both tabs but also connects two margins of the 3,554,195 1/1971 Murdoch... ....l28/284 f ld d diapen 3,561,446 2/1971 Jones, Sr ..128/287 12 Claims, 5 Drawing Figures 'PATENTEDFEB 15 I972 3.642.001

4 Zr? @mz y Jake DISPOSABLE DIAPER OR THE LIKE BACKGROUND OF INVENTION In diapers of the disposable type, it is quite common to use adhesively coated tabs rather than pins as a means of applying the diaper. It is also common to provide temporary covering for the individual tabs.

SUMMARY OF INVENTION opposed marginal portions of the diaper to which thefixed ends of the tab have already been fastened, it has been made possible to use a single strip of polyethylene to cover the otherwise exposed adhesive surfaces of both tabs and to effect the application of the protective strip in a single operation, thus achieving considerable saving both in equipment and in time required for the practice of the method. Production requires a single dispensing unit instead of four which are recommended commercially for a competitive product. Moreover, the use of a single strip of release facing material requires only about half the length of the release facing otherwise needed, thus representing a further significant saving.

In addition, the application of the protective strip across the gap between the over-folded side margins of the diaper serves temporarily to connect such margins, making the diaper easier to handle and effecting further savings in stacking and packag- The user has only to put a finger between the over-folded side margins of the diaper and into engagement with the under surface of the polyethylene strip, whereupon the strip may be pulled free from the tabs and at the same time the temporary spot connection between the tabs and the diaper will be pulled loose, leaving the tab adhesive exposed and the diaper in readiness for application. This represents an important timesaving item and a convenience to the mother or nurse using the diaper.

BRIEF DESCRIPTION OF DRAWINGS FIG. I is a view in perspective showing a completed disposable diaper embodying the invention, portions being broken away.

FIG. 2 is a fragmentary view in perspective showing the intermediate step of adhesively attaching the free ends of the tabs to the fixed ends thereof.

FIG. 3 shows the application of individual polyethylene protective strips to the respective tabs after the free ends of the tabs have been anchored as shown in FIG. 2.

FIG. 4 is a view taken in cross section on the line 4-4 of FIG. 1 showing how a single protective strip may be applied to both tabs simultaneously while spanning the joint between them to hold the diaper in closed folded position.

FIG. 5 is a view on a reduced scale fragmentarily illustrating a flat type of diaper equipped with adhesively coated tabs to facilitate its application.

DETAILED DESCRIPTION The diaper is of a generally conventional type having an impervious backing ply 6 for a pad 8 which, as shown, is a conventional multilayer pad of wadding. Superposed on the pad is a pervious facing ply 10 preferably respectively lapped along respective edges by inwardly folded side margins 12 of the imthe other hand, the invention has aspects which make its use desirable even on a flat diaper, as hereafter described. I

As a means of applying the disposable diaper for use, tabs 14 having adhesive coating 16 are applied adjacent the opposite margins 12 near one end of the diaper. Optionally there may be one or more additional tabs to'facilitate connection of the tabs for fitting the diaper snugly about the legs of the child. In practice about half of each tab is adhered securely to the surface 18 of the backing ply 6. The ends 20 have heretofore been left free but have had their adhesive surfaces 16 protected by individually applied strips of polyethylene or the like which can be pulled off to expose the adhesive. It is not necessary that the diaper be of the particular fold here illustrated. For example, the invention is applicable readily to the diaper shown in Us. Pat. No. 3,386,442. Features are also usable on a flat diaper, as herein illustrated.

To avoid having the free ends 20 of these tabs dangling loose, the present invention contemplates that in most instances one or both of these free ends 20 will be anchored releasably to the underlying fixed end 22 by means of a spot of adhesive shown at 24 and preferably comprising a hot melt plastic seal. Quite apart from other features of the present invention hereinafter described, it is advantageous to use these releasable spots 24 to anchor the free ends 20. This is particularly true when the tabs are made of materials which will not lie flat during manufacturing operation. If desired, the adhesive surface 16 may be covered across each such spot by means of an individually applied protective strip 26 of polyethylene or other release facing material as shown in FIG.

However, the preferred construction is that which is illustrated in FIGS. 1 and 4 wherein a single release facing strip 30 of protective resin is releasably applied across both of the strips 14 and the intervening diaper margins 12 to cover the respective adhesive surfaces 16 of the strips while, at the same time, providing a cross connection through the tabs 14 between the inwardly directed margins 12 of the folded diaper. It will be observed that the connection by means of strip 30 would not generally be as satisfactorily effective on some materials without the spot of adhesive at 24 which anchors the free ends 20 of the tabs to the diaper. The less the tabs are adapted to lie flat when transversely creased, the more important it is to use the spot adhesive. 7

FIG. 5 fragmentarily illustrates one end portion of a flat diaper as it appears in a position inverted from that of use; the impervious backing ply 6 is uppermost and the pervious facing ply 10 is underneath the pad. Near the end of the diaper and adjacent its side margins are adhesively coated mounting tabs 14. The end 15, representing about half the length of each tab, has its adhesive surface 16 attached to the impervious backing ply 6. The end 20 of each tab is folded near the diaper margin and extends back over the end 15 away from the diaper margin. Temporarily it is preferably anchored to the end 15 by means of adhesive spot 24 as above described. A release facing strip 30 is then applied individually across the adhesively coated ends 20 of each tab. The release facings preferably have projecting handle ends v31 which can be stripped from the tabs and at the same time the tab ends 20 can be freed from the adhesive spots 24 for use in attaching the diaper to the patient.

It will be understood that the spot adhesive can be omitted as was done in the case of FIG. 3. FIG. 3 and FIG. 5 demonstrate that the release facing strip 30 need not be applied across both tabs but can be applied individually to one tab, or separately to the respective tabs. However, the construction shown in FIGS. 1, 2 and 4 is preferred.

This procedure of equipping the disposable diaper with tabs having protected adhesive surfaces is very much simpler and more economical than any heretofore known and the equipmentrequired is also simpler and less expensive, thus materially reducing costs. The resulting product is desirable in that it stays folded during stacking and packaging and storage for use. Yet the removal of the single protective strip is easier than separate removal of individual protective strips. Such removal, as an incident thereof also breaks the spot seals, leaving the free end portions of the tabs fully exposed and in position for use.

I claim:

1. The combination with a diaper folded to provide proximate margins and having an impervious backing ply, of a diaper mounting tab having an adhesive coating and attached thereby for a portion of the length of the tab to the backing ply approximately at right angles to one of said margins and having an end portion onto which said coating extends and which is folded back away from said last margin and over the portion which is adhesively attached to the backing ply, and has its adhesive coating outermost, and a release facing strip detachably covering the coating on said end portion, the length of the facing strip being at least approximately as great as the length of the back-folded end portion of said tab.

2. A combination according to claim 1 in which a release facing strip detachably covers the adhesive coating on the back-folded end portion of said tab, said strip having an exposed end projecting from the diaper to facilitate removal of the strip from the tab.

3A combination according to claim 1 in which each of said margins bears exposed surfaces of said backing ply, both of said margins having mounting tabs with an adhesive coating, adhesively attaching a portion of at least one of said tabs to exposed surfaces of the backing ply, a single facing strip spanning the said margins of the diaper and being releasably engaged with the back-folded end portions of both of said tabs.

4. A combination according to claim 3 in which the backfolded end portions of both of said tabs have spot adhesive connection to the underlying portions of the respective tabs which are adhesively attached to the backing ply.

5. The combination with a diaper folded to provide proximate margins and having an impervious backing ply, of a diaper mounting tab having an adhesive coating and attached thereby for a portion of the length of the tab to the backing ply approximately at right angles to one of said margins and having an end portion onto which said coating extends and which is folded back away from said last margin and over the portion which is adhesively attached to the backing ply, and has its adhesive coating outermost, and a release facing strip detachably covering the coating on said end portion, the length of the facing strip being at least approximately as great as the length of the back-folded end portion of said tab and a releasable adhesive spot connecting the back-folded end portion of the tab to the tab portion which is adhesively attached to the backing ply of the diaper.

6. A combination according to claim 5 in which the release facing strip is longer than said back-folded end portion of said tab, and has a length of said strip exposed to be grasped for pulling the strip from the adhesive coating on the back-folded end portion.

7. The combination with a diaper having an impervious backing ply, a pad, and a pervious facing ply, said diaper being longitudinally folded and having side marginal portions of said backing ply disposed in proximity over said pad and facing ply, separate mounting tabs having adhesive coatings and each having an adhesively coated first end portion adherent to the diaper backing ply adjacent one of the diaper margins, each such tab being transversely folded back upon itself to expose an adhesively coated second end portion over its first-mentioned end portion, and a single facing ply detachably adherent to the adhesive coatings on the respective second end portions of said tabs and spanning the space between said tabs.

8. A combination according to claim 7 in which at least one of said tabs has a spot adhesive connection between its respective end portions.

9. The combination with a diaper having an impervious backing ply, a pervious facing ply, and an absorbent pad, of a diaper mounting tab having an adhesive coating attached for a portion of the length of the tab to the backing dply adjacent a diaper side margin and being transversely folde back upon itself to provide an end portion projecting away from said lastmentioned margin of the diaper and upon which said coating extends, and a release facingstrip covering the adhesive coating extending to said last end portion of the mounting tab, said strip projecting beyond the mounting tab across the said diaper margin.

10. A combination according to claim 9 in which the backfolded end of the tab has a spot adhesive connection to that portion of the backing ply which is attached by said adhesive coating to the backing ply of the diaper.

l 1. A method of making for storage a disposable diaper having an absorbent pad between a pervious facing and a relatively impervious backing ply, said method comprising the steps of folding inwardly toward each other side marginal portions of the diaper with the facing innermost and the backing ply exposed, adhesively attaching to the backing ply near the said inwardly folded side diaper marginal portions first ends of adhesively coated mounting tabs with second end portions folded back over said first ends with their adhesive coatings exposed,

spot-adhering at least one of said second end portions to its respective first end to hold the respective tab in folded position, and applying a release facing strip over said exposed coatings.

12. A method according to claim 11 in which the release strip spans said diaper marginal portions and is attached releasably to both tabs, whereby a pull centrally on the strip will pull it from the diaper and leave adhesive coatings of both tabs free for use.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2834347 *Jul 6, 1956May 13, 1958Connally AdrianDisposable diaper
US3180335 *Jul 17, 1961Apr 27, 1965Procter & GambleDisposable diaper
US3221738 *Apr 1, 1963Dec 7, 1965Green Tord DavidMethod for manufacturing diapers and the like, and a diaper manufactured in accordance with this method
US3426756 *Jun 16, 1965Feb 11, 1969Johnson & JohnsonDisposable diaper
US3554195 *May 13, 1968Jan 12, 1971Bowater Scott CorpNapkin for babies
US3561446 *Oct 20, 1969Feb 9, 1971Jones Sr John LPleated diaper
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3750669 *Apr 13, 1972Aug 7, 1973Georgia Pacific CorpDisposable diapers with adhesive fastening tapes
US3776232 *Jun 21, 1971Dec 4, 1973Colgate Palmolive CoDiaper with thigh-opening closure means
US3794038 *Oct 16, 1972Feb 26, 1974Procter & GambleDisposable diaper with tape fastener having a release liner which also provides a means to grip and remove the topsheet
US3835851 *Nov 26, 1973Sep 17, 1974Villari FFenestrated drape with retaining means
US3847710 *Apr 26, 1972Nov 12, 1974Mo Och Domsjoe AbApparatus for applying securing tabs to diapers, sanitary towels, compresses and similar absorbent bodies
US3848596 *Jul 2, 1973Nov 19, 1974Kimberly Clark CoFastening tape arrangement for disposable diapers
US3848597 *Jul 5, 1973Nov 19, 1974Kimberly Clark CoPrefolded disposable diaper
US3853129 *Oct 1, 1973Dec 10, 1974Union Carbide CorpPressure-sensitive tape fastener for disposable diapers
US3874386 *Mar 19, 1974Apr 1, 1975Union Carbide CorpPressure-sensitive tape fastener for disposable diapers
US3901239 *Jul 18, 1974Aug 26, 1975Johnson & JohnsonDisposable diaper with permanently attached adhesive tabs and permanently attached cover strips
US3921638 *Oct 31, 1974Nov 25, 1975Colgate Palmolive CoDiaper with pleat securing tape means
US3926190 *Nov 20, 1974Dec 16, 1975Johnson & JohnsonDisposable diaper with twist tab fastener
US3930503 *Nov 20, 1974Jan 6, 1976Johnson & JohnsonDisposable diaper with tab fastener means having an integral release surface
US3951149 *Mar 6, 1975Apr 20, 1976Johnson & JohnsonTape tab system for opening and refastening disposable diapers
US3967624 *Apr 4, 1975Jul 6, 1976Johnson & JohnsonDisposable diaper with tab fasteners having a perforated cover strip
US3970086 *May 7, 1975Jul 20, 1976Johnson & JohnsonDisposable diaper having tab fastening means with one end thereof releasably adhered to diaper
US3990450 *Dec 22, 1975Nov 9, 1976Colgate-Palmolive CompanyDiaper with elastic waist means
US4001072 *Sep 13, 1972Jan 4, 1977Minnesota Mining And Manufacturing CompanyApplicator for pressure-sensitive adhesive fasteners
US4024867 *Feb 18, 1976May 24, 1977Johnson & JohnsonDisposable diaper with permanently attached adhesive belt fastening means
US4025373 *Mar 19, 1975May 24, 1977Curt G. Joa, Inc.Method for applying adhesive tapes to pads
US4084592 *Jan 8, 1975Apr 18, 1978Johnson & JohnsonDisposable prefolded diaper with permanently attached adhesive closure system
US4127132 *Apr 28, 1977Nov 28, 1978Colgate-Palmolive CompanyDisposable diaper with unitary tape fastener
US4171239 *Sep 24, 1973Oct 16, 1979Curt G. Joa, Inc.Method and apparatus for applying adhesive attaching tapes to pads
US4317449 *Jan 28, 1980Mar 2, 1982Warner-Lambert CompanyDisposable adult incontinent brief
US4523334 *Nov 4, 1983Jun 18, 1985The Procter & Gamble CompanyDisposable bib having fibrous topsheet wherein mother's-bond zone is impregnated with bonding material
US4645501 *May 24, 1984Feb 24, 1987Professional Medical Products, Inc.Disposable absorbent garment construction
US6317890 *Feb 25, 2000Nov 20, 2001Caribbean ConnectionsProtective garment overlay apparatus
US6391011 *May 8, 1995May 21, 2002The Procter & Gamble CompanySanitary napkin having improved flap disposition and means for maintaining the flaps therein
US6923798 *Jan 15, 2002Aug 2, 2005Sca Hygiene Products AbMechanical tape fastening system for disposable absorbent articles
US7318820Mar 12, 2004Jan 15, 2008The Procter & Gamble CompanySimple disposable absorbent article having breathable side barriers
US7320684Sep 21, 2005Jan 22, 2008The Procter & Gamble CompanyDisposable absorbent article having deployable belt strips
US7377914Jun 30, 2005May 27, 2008The Procter & Gamble CompanyDisposable absorbent article having backsheet strips
US7618404Jun 23, 2005Nov 17, 2009The Procter & Gamble CompanyDisposable absorbent article having doubled side flaps and backsheet strips
US7695463Jun 22, 2005Apr 13, 2010The Procter & Gamble CompanyDisposable absorbent article having dual layer barrier cuff strips
US7736351Feb 2, 2004Jun 15, 2010The Procter & Gamble CompanySimple disposable absorbent article
US7737324Nov 23, 2005Jun 15, 2010The Procter & Gamble CompanyDisposable absorbent article having deployable chassis ears
US7763004May 18, 2005Jul 27, 2010The Procter & Gamble CompanyDisposable absorbent article having layered containment pockets
US7857801Mar 23, 2007Dec 28, 2010The Procter & Gamble CompanyDiaper having deployable chassis ears and stretch waistband
US7931636Aug 4, 2005Apr 26, 2011The Procter & Gamble CompanySimple disposable absorbent article
US7985210Feb 9, 2004Jul 26, 2011The Procter & Gamble CompanyAbsorbent article comprising a flap handle that aids in the application of said absorbent article
US8187239May 31, 2005May 29, 2012The Procter & Gamble CompanySide notched folded diaper
US8257335Jan 31, 2007Sep 4, 2012The Procter & Gamble CompanyDiaper having hip stretch panels
US8585672Feb 28, 2007Nov 19, 2013The Procter & Gamble CompanyDisposable absorbent article having deployable belt ears
US8684988Jun 29, 2004Apr 1, 2014The Procter & Gamble CompanyDisposable absorbent article having barrier cuff strips
US8684990Sep 12, 2005Apr 1, 2014The Procter & Gamble CompanySimple disposable pant-like garment having breathable side barriers
US8734417Apr 19, 2011May 27, 2014The Procter & Gamble CompanySimple disposable absorbent article
US8979815Dec 10, 2012Mar 17, 2015The Procter & Gamble CompanyAbsorbent articles with channels
USRE42478 *Apr 11, 1995Jun 21, 2011Sca Hygiene Products AktiebolagMethod of manufacturing a pants-type diaper of a sanitary panty, and one such absorbent article
DE2450701A1 *Oct 25, 1974Apr 30, 1975Colgate Palmolive CoWindelverschluss
DE2504294A1 *Feb 1, 1975Aug 7, 1975Colgate Palmolive CoWindelverschluss
WO1984004242A1 *Apr 17, 1984Nov 8, 1984Johnson & Johnson Prod IncDisposable paper diaper
Classifications
U.S. Classification604/390
International ClassificationA61F13/15, A61F13/60, A61F13/58, A61F13/56
Cooperative ClassificationA61F13/551, A61F13/58, A61F13/60
European ClassificationA61F13/551, A61F13/60, A61F13/58