US3867940A - Scrim reinforced disposable diaper - Google Patents

Scrim reinforced disposable diaper Download PDF

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Publication number
US3867940A
US3867940A US38611373A US3867940A US 3867940 A US3867940 A US 3867940A US 38611373 A US38611373 A US 38611373A US 3867940 A US3867940 A US 3867940A
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Prior art keywords
backing sheet
diaper
layer
batt
face
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Expired - Lifetime
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Frederick K Mesek
Virginia L Repke
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Johnson and Johnson
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Johnson and Johnson
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51Absorbent 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
    • A61F13/514Backsheet, i.e. the impermeable cover or layer furthest from the skin
    • A61F13/51474Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its structure
    • A61F13/51484Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by its structure being inhomogeneous in the plane of the sheet, i.e. having zones of different properties or structures
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/56Supporting or fastening means
    • A61F13/58Adhesive tab fastener elements

Abstract

A multi-layer diaper includes a porous facing layer to be positioned adjacent an infant''s skin, an absorbent batt and a water-impervious backing sheet. The backing sheet is provided with adhesive tabs on its outer surface at its side portions near one end of the diaper, and is reinforced with flexible structural material, such as scrim, to prevent stretching and rupture thereof due to tension in the tabs generated during diapering, during the wearing of the diaper and during the removal of the diaper from the infant. The selected areas of reinforcement include the areas in the vicinity of tab permanent attachment to surface of the backing sheet, the front waist portion area, the marginal side portions, or the entire inner surface of the backing sheet.

Description

Hit Stats Mesek et a1.

[451 Feb. 25, 1975 SCRIM REINFORCED DISPOSABLE DIAPER [73] Assignee: Johnson & Johnson, New

Brunswick, NJ.

[22] Filed: Aug. 6, 1973 [21] Appl. No.: 386,113

3,730,184 5/1973 Mesek 128/287 3,777,758 12/1973 Mesek 128/284 3,777,759 12/1973 Oehmke 128/287 3,797,495 3/1974 Schmidt 128/287 Primary Examiner-Aldrich F. Mledbery [57] ABSTRACT A multi-layer diaper includes a porous facing layer to be positioned adjacent an infants skin, an absorbent batt and a water-impervious backing sheet. The backing sheet is provided with adhesive tabs on its outer surface at its side portions near one end of the diaper, and is reinforced with flexible structural material, such as scrim, to prevent stretching and rupture thereof due to tension in the tabs generated during diapering, during the wearingof the diaper and during the removal of the diaper from the infant. The selected areas of reinforcement include the areas in the vicinity of tab permanent attachment to surface of the backing sheet, the front waist portion area, the marginal side portions, or the entire inner surface of the backing sheet.

6 Claims, 6 Drawing Figures SCRIM REINFORCED DISPOSABLE DIAPER BACKGROUND OF THE INVENTION Disposable diapers due to their convenience have become an accepted substitute for cloth diapers, and several different constructions have achieved significant market penetration. However, even the more successful diapers are inadequate in certain functional aspects.

The typical disposable diaper is made of three major components, namely, a facing layer which is positioned adjacent the infants skin, an absorbent pad or batt immediately beneath the facing layer which distributes and stores the liquid deposited on the diaper, and finally, a water-impervious sheet which contains the liquid within the diaper structure. Most cloth diapers and disposable diapers are usually positioned on the infant by pinning the side portions of the diapers together. However, when pins have been used with disposable diapers, the water-impervious sheet which is normally in the form of a plastic sheet material is punctured by the pin. These punctures are sometimes extended under tension from the pins so that ruptures are created in the impervious sheet which may allow liquid to escape therefrom. It will be appreciated that the plastic sheets which form the backing sheet are quite easily stretchable and will tear or rupture under the influence of tension.

In addition, when pins are used to secure the diaper on an infant, there is the danger of sticking the infant when diapering and the hazard of the pins opening and sticking the infant during use which results in discomfort and possible infection. To overcome the rupturing problem and for added convenience and safety in use, many disposable diapers have been equipped with adhesive tabs, such as tabs of adhesive tape.

The adhesive tabs are normally attached on both side edges of the diaper on one end corresponding to the back of the diaper when it is positioned on the infant. One end of each tab is permanently attached to the back of the diaper, and the opposite end of the tab, which will be attached to the waist or front portion of the diaper, is prevented from sticking to the diaper during shipment and handling by'pl'acing anon-stick strip over the exposed end of the tab, such strips include teflon-coated paper, etc. While adhesive tabs obviate the puncture problem attributable to safety pins, the tabs will, under some circumstances, stretch the backing sheet and tear it while the baby is being diapered, while the diaper is being worn, or when the diaper is adjusted by the parent.

Normally the backing sheet is adhered to the facing layer along the marginal-side portions of the diaper, or to the ban and marginal side portions of the facing layer by adhesive glue lines or islands. Such adherence keeps the diaper components in relative position to each other and provides some reinforcement of the backing sheet. The degree of reinforcement provided depends upon the location and closeness of the areas of adhesion, the strength of the fibrous layer adhered to, and the ease of separation. of the fibrous layer adhered to from the non-adhered fibers surrounding it. Quite often, such reinforcement is inadequate to cope with strong pulling and when tension in the tabs reaches sufficient magnitude, the backing sheet will stretch and rupture.

It has been suggested that the side margins be reinforced by folding over the sides to create a double thickness along the margins but this method inhibits the conformability of the diaper and requires a wider diaper to compensate for the fold over.

Saber, US. Pat. No. 3,604,422 utilizes an extruded backing sheet with a thickened marginal bead portion to provide a reinforced margin for anchoring pins. However, this construction is inadequate for reinforcing the waist portion of the backing sheet and is not economical to produce.

SUMMARY OF THE INVENTION The present invention represents an improvement upon disposable diapers having a plastic backing sheet which prevents rupturing of the sheet due to tension in the securing means. The present invention is adaptable for use with both safety pin secured diapers and adhesive tabs secured diapers. The backing sheet is reinforced by bonding a material having a greater modulus of elasticity than the backing sheet to the backing sheet in at least the areas thereof where the tabs or pins will be attached.

By reinforcing at least the area of the backing sheet in the vicinity of the anchoring location of the tabs with additional material, such as a high strength scrim in the form of cotton gauze or polyethylene fibers or a strong film, such as a polyethylene terephthalate film, the tensile strength of the backing sheet is greatly increased thereby minimizing stretching and rupturing of the backing sheet. The term anchoring locations" refers to the areas of the backing sheet on which the tabs are positioned and adhered to by the manufacturer prior to shipment of the diapers to the consumer. The term securing areas as used herein, refers to the areas of the backing sheet to which the tabs will. be secured by the user when the diaper is positioned on an infant. The securing areas are located in the front waist portion of the diaper. When the diaper is not equipped with tabs and safety pins are used as securing means, anchoring ,locations" and securing areas" refer to the areas of the backing sheet through which the safety pins are passed to secure the diaper about an infant. I

In one embodiment of the invention, reinforcement is provided by bonding reinforcement material on the surface of the backing sheet in the vicinity of tab anchorage either on the inner or outer surface of the backing sheet. The backing sheet in the anchoring locations is subjected to increase tension from the tabs during the removalof the non-stick cover strip which is generally ripped off by the mother. And the anchoring locations are also subjected to increased tension when the diaper is being positioned on the infant as the mother pulls on the tab to conform the diaper to the infants shape. By reinforcing the anchoring locations,

. the stress is absorbed through a greater surface area ment will become out of register with its desired location. Accordingly, a second embodiment of this invention utilizes reinforcement material which extends continuously along the marginal side portions of the backing sheet thereby eliminating problems with respect to registry in the length dimension.

A third embodiment of the diaper of this invention includes a backing sheet which is reinforced in the anchoring locations, as in the first embodiment, and also includes reinforcement material across the waist portion of the diaper. The waist portion reinforcement is provided by bonding scrim material, or other reinforcing material, from one side edge of the backing sheet to the other side edge and from the end of the sheet to a selected distance inwardly corresponding to the portion of the diaper that is positioned adjacent the infants abdomen. This embodiment provides reinforcement not only for the anchoring locations but also for the securing areas of the diaper to which the free ends of the tape tabs may be secured when the diaper is worn. Such areas may be stressed quite highly when the diaper is being worn by the infant and when the tabs are being detached to remove the diaper from the infant. Tearing of the backing sheet while the diaper is being removed or readjusted will prevent its continued use if it is found to be unsoiled.

Registry problems in manufacture may also be presented with the third embodiment. Accordingly, a fourth embodiment of the diaper of this invention utilizes a backing sheet which is reinforced by reinforcing material which extends completely over the inner surface of the backing sheet, thereby reinforcing the entire backing sheet.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view, with certain portions broken away for clarity of illustration, of an open unfolded diaper illustrating a first embodiment of this invention;

FIG. 2 is a sectional view of the diaper of FIG. 1 taken along plane 2-2;

FIG. 3 is an enlarged fragmentary perspective view, with certain portions broken away, of a corner of the diaper of FIG. 1;

FIG. 4 is a perspective view with certain portions broken away, illustrating a second embodiment of this invention;

FIG. 5 is a perspective view, with certain portions broken away, illustrating a third embodiment of this invention; and

FIG. 6 is a perspective view with certain portions broken away, illustrating a fourth embodiment of this invention.

DETAILED DESCRIPTION While this invention is susceptible of an embodiment in many different forms, there is shown in the drawings and will be hereinafter described in detail, preferred embodiments of the invention and modifications thereof, with the understanding that the present disclosure is to be considered as an exemplification of the principles of the invention, and is not intended to limit the invention to the embodiment illustrated. The scope of the invention will be pointed out in the appended claims.

Referring to the drawings and particularly to FIG. 1, the diaper assembly 10, when fully opened and laid out flat, comprises a lowermost water impervious sheet 12 which is rectangular in shape, a highly water-absorbent pad or batt 14, which is also rectangular in shape, but smaller than the impervious sheet and centrally disposed thereon, and an overlying facing layer 16 of fibrous material, which is also rectangular in shape, equal in dimension and coterminous with the impervious sheet and in contact therewith in the in the marginal portions of the diaper extending peripherally beyond the absorbent batt. Batt 14 has an integral continuous paper-like densified highly compacted lowermost fibrous layer 18 that may include spaced, parallel, longitudinally disposed, thickened densified portions 19. The paper-like densified, highly compacted, fibrous layer 18 is continuous in the lowermost portion of the batt l4 and covers substantially its entire area. The lower major face of the batt 14, including the densified layer 18, is adhered to the impervious sheet 12 by bead lines 22 of adhesive substantially throughout the interface therebetween. The marginal portions of the facing layer extending beyond batt 14 are also adhered to impervious sheet 12 by adhesive bead lines 22.

In the preferred embodiment of the invention, moisture impervious sheet 12 is formed of polyethylene having a thickness of approximately 0.001 inch. The sheet may be smooth or it may be embossed to improve its drape and feel.

Batt 14 may be formed of loosely compacted short cellulosic fibers, such as wood pulp fibers, or cotton linters, or mixtures thereof, which are primarily held together by inter-fiber bonds requiring no added adhesive, as is known in the art. Briefly, this batt is a low bulk density coherent web of loosely compacted cellulose fibers preferably comminuted wood pulp fibers in the form of so-called fluff.

The term short fibers, as used herein, refers to fibers less than about A inch in length, in contrast to long fibers, or textile length fibers" which are longer than about /1 inch in length, and generally are between about is and 2% inches in length. The former are substantially less costly than the latter. The classification of fibers by length may be carried out by the Clark Classification procedure described in the test manual or The Technical Association of Pulp and Paper Industry (TAPPI-T233 SU64).

The paper-like densified layer 18 of batt 14 is formed by a slight moistening of one surface of the batt followed by the application of pressure thereto. The nature of the batt and of its densified layer and the method of producing the same are described in U.S. Pat. No. 3,017,304, dated Jan. 16, 1962. The thickened, densified portions 19 are formed by further compression of batt 14 while it is still moist, as described in Repke US. Pat. application Ser. No. 266,013, filed June 26, 1972, as with embossing rollers which produce recesses on the surfaces of the batt 14 in line with the thickened portions 19.

The composite density of batt 14, including its densifled layer 18, should be above about 0.07 gm./cc. and preferably between about 0.10 and 0.15 gm./cc. The foregoing density values are applicable to the diaper as produced. In storage and handling, the loft or thickness of the batt is increased to some extent, resulting in lowered densities.

In the diaper of FIGS. 1 and 2, facing layer 16 is made up of a mixture of fibers consisting predominantly of shortcellulosic fibers such as wood pulp fibers or cotton linters, in amounts of about 75 percent to about 98 percent, the balance being textile length fibers such as rayon. Short cellulosicfibers such as wood pulp fibers or cotton linters are substantially less expensive than textile length cellulostic fibers such as cotton and rayon, and this low cost is a factor in reducing the cost of the facing layer component of the diaper of this invention.

In the facing layer, the short fibers are preferably in uniform admixture with 2 percent to 25 percent by weight of textile length fibers, such as 1.5 denier rayon fibers uniformly cut to 1 inch length, The short and long fibers are preferably randomly and substantially uniformly dispersed and bonded with a bonding agent such as a self-cross-linking acrylic emulsion. The facing web may also be treated with a wetting agent to partially counteract the water-repellency of the bonding agent and bring the facing layer to the desired degree of wettability. Facing layers of this character are described in greater detail in commonly-owned Liloia et al. US. Pat. No. 3,663,348.

Facing layers suitable for use in the preferred diaper of this invention have fabric weights in the range of l to 5 oz./yd. and densities less than 0.15 gm./cc. generally in the range between 0.05 and 0.1 gm./cc. The dry strength of the facing layer for a fabric having a weight of about 1.5 oz./yd. is at least 0.15 lbs./in. of width in the machine direction and at least 0.10 lbs./in. of width in the cross direction. The fabrics have unusually good elongation, loft, softness and drape characteristics in comparison to prior products incorporating any substantial amount of short fibers.

Preferably the diaper is provided with two adhesive tabs 26, each having a fixed end 26a secured to the impervious sheet 12 at the anchoring locations 12a (FIG. 2) adjacent one end thereof, and a free end 26b whose adhesive surface is covered by a facing strip 27, such as teflon coated paper. The facing strips 27 are removed to expose the adhesive surfaces when the diaper is applied to the infant and the free end 26b of the adhesive tabs 26 are secured to the securing areas 12b of the backing sheet in the front or waist portion ofthe diaper.

Backing sheet 12, according to the present invention,

-is reinforced by structural material having a greater modulus of elasticity than the backing sheet in at least the anchoring locations 12a of the tabs 26. The reinforcement is achieved by bonding the reinforcing material either to the surface of the backing sheet 12 which is in juxtaposition with the other components of the diaper, i.e., the inner surface'of the backing sheet, or to the outer surface of the backing sheet. The reinforcing material may take various structures including scrim material, such as cotton gauze or polyethylene filaments, or film materials such as biaxially oriented polyethylene terephthalate.

The reinforcing material 30, as illustrated, is bonded to the interior surface of the backing sheet in the vicinity 12a of the tabs 26. The reinforcing material in this embodiment is rectangular in shape and larger in dimension than the anchored end 260 of the tab 26, FIG. 3.

The anchoring locations 12a are subjected to increased stress when the facing strips are removed from the tab prior to securing the diaper on the infant. Each facing strip is usually removed in a ripping or tearing manner so that high stress must be absorbed by the backing sheet 12 to prevent stretching and rupture. By providing reinforcing scrim 30, the stress is transferred to the scrim material and is thereby distributed over a larger area of the backing sheet resulting in making more of the backing sheet available to absorb the stress.

As has been indicated, the single patch reinforcements 30 functions well for reinforcement but may result in registry problems during the high speed manufacture of the diaper. The backing sheet 12 is normally supplied in a continuous roll which is fed into the processing stream and adhered to the other components of the diaper and then cut to size. To minimize the registry problem, a second diaper is illustrated in FIG. 41 in which the reinforcing material 31 consists of two stips of material which are adhered along the marginal side portions of the backing sheet 12. Strips 31 extend continuously along the side portions of the diaper and may be conveniently formed on the supply roll from which the backing sheet is out either on the inner or outer surface thereof.

While the anchoring locations 12a receive a large amount of stress during the diapering of the infant, the waist portion 12b of the diaper which extends from side to side and from the end of the diaper opposite the anchoring locations to about one-fourth of the length of the diaper is also subjected to stress from the secured ends of the tabs while the diaper is being worn by the infant and when the tabs are being removed. The tabs 26 presently come in two varieties, onein which the tab is formed from a paper tape which may be easily torn, and a second in which the tab is formed from a plastic material which may not be easily torn. When the latter type tabs are used, the diaper is removed or readjusted by pulling the tab from the securing areas 12b in the waist portion of the backing sheet; Understandably, this results in increased stress in the backing sheet in this area. To overcome this detaching stress, as well as the stresses generated by either type of tabs while the diaper is being worn by the infant, reinforcement material 33 is also provided in the waist portion 12b of the backing sheet, as shown in FIG. 5.

The reinforcement in the anchoring locations of the embodimetns illustrated in FIGS. 3 and 5 may be of two patches of material 30, asillustrated in'FlG. 3, or may be a continuous strip 32 extending across the rear end of the backing sheet and overlapping at least a portion of the anchoring locations 120, preferably from one lateral edge to the other lateral edge of the backing sheet, as illustrated in FIG. 5. The continuous strip 32 provides greater reinforcement for the anchoring locations than the patches 30, and also allows more flexibility during the manufacture of the diaper by allowing reinforcements 32 and 33 to be formed by a single band of reinforcing materiahlt will be appreciated that such a band would extend across the backing sheet in accordance with the length of material needed to reinforce the anchoring locations and securing areas 12b and would correspond in width to the combined width of areas 12a and 12b. When the diaper of FIG. 5 is pro duced in a production line, a single band of reinforcement will be cut after the diaper elements are assembled to become reinforcement 32 of one diaper, and reinforcement 33 of the next preceding or next succeeding diaper, depending on the direction of the production line. When such a band is used, the diaper components must be placed in register with the backing sheet so that, upon cutting of the assembled elements, the reinforcements will be properly located. In high speed production lines such registry may be difficult to maintain.

FIG. 6 illustrates a fourth diaper which obviates the registry problem of FlG. as well as providing reinforcement continuously over the entire inner surface of the backing sheet. The backing sheet of FIG. 6 has reinforcing material 34 bonded to the inner surface of the backing sheet 12 and coterminous therewith. The backing sheet 12 of this embodiment is adaptable for positioning of the tabs at any location and thereby provides the greatest flexibility in use of the diaper, but of course, results in increased cost in the manufacture of the diaper.

The scrim reinforcement utilized in the diaper of the present invention may be in the form of cotton gauze which can be bonded to the plastic backing sheet by known methods or alternatively and preferably, may comprise polyethylene filament gauze. The latter provides for easier bonding of the scrim to the backing sheet since it may be boned by the application of heat and pressure, thus reducing the overall cost in manufacturing. The reinforcement may also be formed by other structural materials which are flexible, such as biaxially oriented polyethylene terephthalate films or other plastic films having a greater modulus of elasticity than the backing sheet.

Reinforcement by scrim is preferable when the diaper is to be used with safety pins since the puncture area caused by the pin will be limited to approximately the size of the spacing between filaments in the scrim. In this manner, as tension in the pin is increased, the plastic will stretch untiil a filament is reached at which time the stress will be distributed throughout the scrim material.

The adhesion of scrim or other reinforcing material to one surface of the backing sheet or to portions thereof, may of course, roughen the surface. However, the reinforcement contemplated by this invention is preferably adhered to a surface of the backing sheet which is covered at all times by the facing layer, or by the facing layer and the pad and is thus out of contact with the infant wearing the diaper or with the parent applying it or removing it.

It will be understood by those skilled in the art that variations and modifications of the specific embodiments described above may be employed without departing from the scope of the invention as defined in the appended claims.

What is claimed is:

l. A multi-layer diaper comprising: a porous facing layer; a highly porous absorbent batt in face-to-face juxtaposition with said facing layer; a water-impervious backing sheet adhered to said batt; means comprising adhesive tabs attached to said backing sheet for attaching locations at the sides of said backing sheet to other locations on said backing sheet to secure said diaper about the thighs and waist of an infant, said adhesive tabs being located at anchoring locations at the sides and near one end of the backing sheet and adaptable to be attached at securing areas near the other end of the backing sheet; said water-impervious backing sheet being reinforced against stretching and rupture by having adhered to a minor portion of the surface thereof a flexible structural material having a higher modulus of elasticity than said backing sheet, said minor surface portion being located in at least the vicinity of said anchoring locations.

2. The diaper of claim 1 wherein said backing sheet is reinforced by a cotton gauze scrim.

3. The diaper of claim 1 wherein said backing is reinforced by a scrim formed of polyethylene filaments.

4. The diaper of claim 1 wherein said structural material extends along and is restricted to the marginal side portions of said backing sheet surface.

5. The diaper of claim 1 wherein said structural material is restricted to an area extending transversely across said backing sheet between and overlapping at least a portion of said anchoring locations.

6. A multi-layer diaper comprising: a porous facing layer, a highly porous, loosely compacted, cellulosic fibrous batt having greater wettability to water than said facing layer; a paper-like, densified compacted cellulosic fibrous layer of relatively high wettability and relatively high fluid retentivity integral with said loosely compacted batt on the face thereof opposite the face in juxtaposition to said facing layer; a water-impervious backing sheet adhered to said densified layer; adhesive tabs attached to anchoring locations at one end of the outer face, opposite said adhered face, of said backing sheet, said tabs being adaptable to secure the diaper on an infant; said impervious backing sheet having scrim reinforcement adhered to a minor portion of its surface in at least the vicinity of said anchoring locations.

Claims (6)

1. A MULTI-LAYER DIAPER COMPRISING: A POROUS FACING LAYER; A HIGHLY POROUS ABSORBENT BATT IN FACE-TO-FACE JUXTAPOSITION WITH SAID FACING LAYER; A WATER-IMPERVIOUS BACKING SHEET ADHERED TO SAID BATT; MEANS COMPRISING ADHESIVE TABS ATTACHED TO SAID BACKING SHEET FOR ATTACHING LOCATIONS AT THE SIDES OF SAID BACKING SHEET TO OTHER LOCATIONS ON SAID BACKING SHEET TO SECURE SAID DIAPER ABOUT THE THIGHS AND WAIST OF AN INFANT, SAID ADHESIVE TABS BEING LOCATED AT ANCHORING LOCATIONS AT THE SIDES AND NEAR ONE END OF THE BACKING SHEET AND ADAPTABLE TO BE ATTACHED AT SECURING AREAS NEAR THE OTHER END OF THE BACKING SHEET; SAID WATER-IMPERVIOUS BACKING SHEET BEING REINFORCED
2. The diaper of claim 1 wherein said backing sheet is reinforced by a cotton gauze scrim.
3. The diaper of claim 1 wherein said backing is reinforced by a scrim formed of polyethylene filaments.
4. The diaper of claim 1 wherein said structural material extends along and is restricted to the marginal side portions of said backing sheet surface.
5. The diaper of claim 1 wherein said structural material is restricted to an area extending transversely across said backing sheet between and overlapping at least a portion of said anchoring locations.
6. A multi-layer diaper comprising: a porous facing layer, a highly porous, loosely compacted, cellulosic fibrous batt having greater wettability to water than said facing layer; a paper-like, densified compacted cellulosic fibrous layer of relatively high wettability and relatively high fluid retentivity integral with said loosely compacted batt on the face thereof opposite the face in juxtaposition to said facing layer; a water-impervious backing sheet adhered to said densified layer; adhesive tabs attached to anchoring locations at one end of the outer face, opposite said adhered face, of said backing sheet, said tabs being adaptable to secure the diaper on an infant; said impervious backing sheet having scrim reinforcement adhered to a minor portion of its surface in at least the vicinity of said anchoring locations.
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US4610685A (en) * 1985-09-09 1986-09-09 Kimberly-Clark Corporation Fibrous web with reinforced marginal portions, method for making the same and absorbent article incorporating the same
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JPS62141012U (en) * 1986-02-27 1987-09-05
US4710190A (en) * 1986-09-04 1987-12-01 Minnesota Mining And Manufacturing Company Diaper having improved reinforced area for receiving adhesive fastening tape
US4753649A (en) * 1987-03-31 1988-06-28 Kimberly-Clark Corporation Film reinforcement for disposable diapers having refastenable tapes
GB2203325A (en) * 1987-03-23 1988-10-19 Koester Kg Baby's disposable nappy
US5019063A (en) * 1989-10-30 1991-05-28 The Procter & Gamble Company Absorbent articles containing mechanical pulp and polymeric gelling material
US5061262A (en) * 1987-05-21 1991-10-29 Kimberly-Clark Corporation Hot melt adhesive for polyethylene film reinforcement
US5066871A (en) * 1989-11-08 1991-11-19 National Semiconductor Corporation Maximum swing cascode circuit for a bipolar charge pump
US5106383A (en) * 1989-07-28 1992-04-21 Minnesota Mining And Manufacturing Company Closure systems for diapers and method of preparation
US5147347A (en) * 1991-01-17 1992-09-15 Kimberly-Clark Corporation Disposable garment having a refastenable adhesive taping system
US5158557A (en) * 1988-04-04 1992-10-27 Minnesota Mining And Manufacturing Company Refastenable adhesive tape closure
US5236429A (en) * 1982-10-25 1993-08-17 Molnlycke Ab Disposable diaper
US5342339A (en) * 1987-11-06 1994-08-30 Minnesota Mining And Manufacturing Company Pressure-sensitive adhesive closure for disposable diaper
US5399177A (en) * 1991-10-25 1995-03-21 The Procter & Gamble Company Refastenable adhesive fastening systems for disposable absorbent articles
US5407439A (en) * 1991-05-20 1995-04-18 The Procter & Gamble Company Multi-layer female component for refastenable fastening device and method of making the same
US5413568A (en) * 1992-08-21 1995-05-09 The Procter & Gamble Company Refastenable adhesive fastening systems for individually packaged disposable absorbent articles
US5424025A (en) * 1993-05-03 1995-06-13 Minnesota Mining And Manufacturing Company Process of making zone orientated continuous web
GB2284742A (en) * 1993-12-16 1995-06-21 Kimberly Clark Co Dynamic fitting diaper
US5549592A (en) * 1995-04-03 1996-08-27 Kimberly-Clark Corporation Absorbent article with a laminated tape
US5571586A (en) * 1994-11-02 1996-11-05 Minnesota Mining And Manufacturing Company Repositionable tape closure system for a thin film article
US5595618A (en) * 1995-04-03 1997-01-21 Kimberly-Clark Corporation Assembly process for a laminated tape
USH1640H (en) * 1993-09-13 1997-03-04 The Procter & Gamble Company Reinforced landing surface for mechanical fasteners on disposable products
US5776123A (en) * 1993-07-28 1998-07-07 Kimberly-Clark Worldwide, Inc. Garment with tactile position indicators
US5820617A (en) * 1996-01-26 1998-10-13 Uni-Charm Corporation Disposable diaper
US6317890B1 (en) * 2000-02-25 2001-11-20 Caribbean Connections Protective garment overlay apparatus
USRE38652E1 (en) 1992-08-20 2004-11-16 Velcro Industries B.V. Hook for hook and loop fasteners
US6923798B2 (en) 2001-01-22 2005-08-02 Sca Hygiene Products Ab Mechanical tape fastening system for disposable absorbent articles

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US3978860A (en) * 1975-07-31 1976-09-07 Colgate-Palmolive Company Tabs for disposable diapers
US4055182A (en) * 1975-10-08 1977-10-25 Colgate-Palmolive Company Disposable diaper reinforcement
US4047531A (en) * 1976-08-09 1977-09-13 Colgate-Palmolive Company Absorbent article with differential pad
US4067338A (en) * 1976-11-22 1978-01-10 Weyerhaeuser Company Disposable diaper with improved tape fastener
US4079739A (en) * 1976-12-27 1978-03-21 Kimberly-Clark Corporation Die-cut contoured catamenial napkin of multi-layered construction
JPH0262B2 (en) * 1978-01-27 1990-01-05 Johnson & Johnson Prod Inc
FR2415433A1 (en) * 1978-01-27 1979-08-24 Johnson & Johnson Hygienic layer conformable, non-reusable, partially reinforced
JPS54115939A (en) * 1978-01-27 1979-09-08 Johnson & Johnson Easy disposable diaper with reinforced part
US4337771A (en) * 1978-01-27 1982-07-06 Johnson & Johnson Baby Products Company Conformable disposable diaper having reinforced portions
US4210144A (en) * 1978-09-18 1980-07-01 The Procter & Gamble Company Disposable diaper having refastenable tape system
EP0009278A1 (en) * 1978-09-18 1980-04-02 THE PROCTER & GAMBLE COMPANY Improved disposable diaper having refastenable tape system
EP0023804A1 (en) * 1979-07-25 1981-02-11 JOHNSON & JOHNSON BABY PRODUCTS COMPANY A gatherable laminated structure including an apertured elastic member and method of making the same
US4317449A (en) * 1980-01-28 1982-03-02 Warner-Lambert Company Disposable adult incontinent brief
US4309236A (en) * 1980-02-08 1982-01-05 Riegel Textile Corporation Process for attaching elastic strips during the manufacture of elastic leg disposable diapers
US4333782A (en) * 1980-02-11 1982-06-08 Johnson & Johnson Baby Products Company Method of making laminated structures having gathered and ungathered marginal portions
EP0080647A1 (en) * 1981-11-25 1983-06-08 Peaudouce Disposable diaper provided with adhesive fasteners
FR2516757A1 (en) * 1981-11-25 1983-05-27 Boussac Saint Freres Bsf Diaper to shed provided with adhesive attachment means
JPS5994604A (en) * 1982-10-25 1984-05-31 Moelnlycke Ab Disposable diaper
US5370639A (en) * 1982-10-25 1994-12-06 Molnlyke Ab Arrangement in a disposable diaper
JPH0532064B2 (en) * 1982-10-25 1993-05-14 Moelnlycke Ab
US5024672A (en) * 1982-10-25 1991-06-18 Widlund Leif U R Disposable diaper
US5236429A (en) * 1982-10-25 1993-08-17 Molnlycke Ab Disposable diaper
US4523333A (en) * 1983-11-04 1985-06-18 The Procter & Gamble Company Disposable bib having tape-tab fastener
US4523334A (en) * 1983-11-04 1985-06-18 The Procter & Gamble Company Disposable bib having fibrous topsheet wherein mother's-bond zone is impregnated with bonding material
US4645501A (en) * 1984-05-24 1987-02-24 Professional Medical Products, Inc. Disposable absorbent garment construction
US4610685A (en) * 1985-09-09 1986-09-09 Kimberly-Clark Corporation Fibrous web with reinforced marginal portions, method for making the same and absorbent article incorporating the same
US4643730A (en) * 1985-09-26 1987-02-17 Kimberly-Clark Corporation Radiation curing formulations for polyethylene film reinforcement to provide refastenable pressure-sensitive tape closure system for disposable diapers
JPH0350903Y2 (en) * 1986-02-27 1991-10-30
JPS62141012U (en) * 1986-02-27 1987-09-05
EP0259075A3 (en) * 1986-09-04 1989-03-29 Minnesota Mining And Manufacturing Company Diaper having improved reinforced area for receiving adhesive fastening tape
EP0259075A2 (en) 1986-09-04 1988-03-09 Minnesota Mining And Manufacturing Company Diaper having improved reinforced area for receiving adhesive fastening tape
US4710190A (en) * 1986-09-04 1987-12-01 Minnesota Mining And Manufacturing Company Diaper having improved reinforced area for receiving adhesive fastening tape
GB2203325A (en) * 1987-03-23 1988-10-19 Koester Kg Baby's disposable nappy
EP0287767A1 (en) * 1987-03-23 1988-10-26 Koester Kg Disposable napkin
US4753649A (en) * 1987-03-31 1988-06-28 Kimberly-Clark Corporation Film reinforcement for disposable diapers having refastenable tapes
US5061262A (en) * 1987-05-21 1991-10-29 Kimberly-Clark Corporation Hot melt adhesive for polyethylene film reinforcement
US5342339A (en) * 1987-11-06 1994-08-30 Minnesota Mining And Manufacturing Company Pressure-sensitive adhesive closure for disposable diaper
US5158557A (en) * 1988-04-04 1992-10-27 Minnesota Mining And Manufacturing Company Refastenable adhesive tape closure
US6637079B1 (en) 1989-01-31 2003-10-28 The Procter & Gamble Company Multi-layer female component for refastenable fastening device and method of making the same
US5106383A (en) * 1989-07-28 1992-04-21 Minnesota Mining And Manufacturing Company Closure systems for diapers and method of preparation
US5019063A (en) * 1989-10-30 1991-05-28 The Procter & Gamble Company Absorbent articles containing mechanical pulp and polymeric gelling material
US5066871A (en) * 1989-11-08 1991-11-19 National Semiconductor Corporation Maximum swing cascode circuit for a bipolar charge pump
US5147347A (en) * 1991-01-17 1992-09-15 Kimberly-Clark Corporation Disposable garment having a refastenable adhesive taping system
US6849142B1 (en) 1991-05-20 2005-02-01 The Procter & Gamble Company Method of making multi-layer female component for refastenable fastening device
US5407439A (en) * 1991-05-20 1995-04-18 The Procter & Gamble Company Multi-layer female component for refastenable fastening device and method of making the same
US5470417A (en) * 1991-05-20 1995-11-28 The Procter & Gamble Company Method of making multi-layer female component for refastenable fastening device
US5569233A (en) * 1991-05-20 1996-10-29 The Procter & Gamble Company Multi-layer female component for refastenable fastening device and method of making the same
US5399177A (en) * 1991-10-25 1995-03-21 The Procter & Gamble Company Refastenable adhesive fastening systems for disposable absorbent articles
USRE38652E1 (en) 1992-08-20 2004-11-16 Velcro Industries B.V. Hook for hook and loop fasteners
US5413568A (en) * 1992-08-21 1995-05-09 The Procter & Gamble Company Refastenable adhesive fastening systems for individually packaged disposable absorbent articles
US5424025A (en) * 1993-05-03 1995-06-13 Minnesota Mining And Manufacturing Company Process of making zone orientated continuous web
US5776123A (en) * 1993-07-28 1998-07-07 Kimberly-Clark Worldwide, Inc. Garment with tactile position indicators
USH1640H (en) * 1993-09-13 1997-03-04 The Procter & Gamble Company Reinforced landing surface for mechanical fasteners on disposable products
GB2284742B (en) * 1993-12-16 1997-10-01 Kimberly Clark Co Fastening system for a disposable garment
GB2284742A (en) * 1993-12-16 1995-06-21 Kimberly Clark Co Dynamic fitting diaper
US5571586A (en) * 1994-11-02 1996-11-05 Minnesota Mining And Manufacturing Company Repositionable tape closure system for a thin film article
US5595618A (en) * 1995-04-03 1997-01-21 Kimberly-Clark Corporation Assembly process for a laminated tape
US5549592A (en) * 1995-04-03 1996-08-27 Kimberly-Clark Corporation Absorbent article with a laminated tape
US5820617A (en) * 1996-01-26 1998-10-13 Uni-Charm Corporation Disposable diaper
US6317890B1 (en) * 2000-02-25 2001-11-20 Caribbean Connections Protective garment overlay apparatus
US6923798B2 (en) 2001-01-22 2005-08-02 Sca Hygiene Products Ab Mechanical tape fastening system for disposable absorbent articles

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