WO1991016871A1 - Double-use diaper - Google Patents

Double-use diaper Download PDF

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Publication number
WO1991016871A1
WO1991016871A1 PCT/US1990/002302 US9002302W WO9116871A1 WO 1991016871 A1 WO1991016871 A1 WO 1991016871A1 US 9002302 W US9002302 W US 9002302W WO 9116871 A1 WO9116871 A1 WO 9116871A1
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WO
WIPO (PCT)
Prior art keywords
insert
diaper
recited
backsheet
back
Prior art date
Application number
PCT/US1990/002302
Other languages
French (fr)
Inventor
Joseph A. Lopez
Raffi M. Khachatoorian
Original Assignee
Lopez Joseph A
Khachatoorian Raffi M
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 Lopez Joseph A, Khachatoorian Raffi M filed Critical Lopez Joseph A
Priority to PCT/US1990/002302 priority Critical patent/WO1991016871A1/en
Publication of WO1991016871A1 publication Critical patent/WO1991016871A1/en

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Classifications

    • 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
    • A61F13/551Packaging before or after use
    • 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
    • A61F13/45Absorbent 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
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/493Absorbent articles specially adapted to be worn around the waist, e.g. diapers adjustable by adding or removing material, e.g. umbilical cord arrangements
    • 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
    • A61F13/505Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators with separable parts, e.g. combination of disposable and reusable parts
    • 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
    • A61F13/511Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/513Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability
    • A61F13/51394Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability creating a visual effect, e.g. having a printed or coloured topsheet, printed or coloured sub-layer but being visible from the topsheet, other than embossing for purposes of bonding, wicking, acquisition, leakage-prevention
    • 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
    • A61F13/42Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators with wetness indicator or alarm
    • 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
    • A61F13/45Absorbent 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
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007Form-fitting, self-adjusting disposable diapers
    • A61F13/49009Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/49011Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the waist region
    • 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
    • A61F13/45Absorbent 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
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/491Absorbent articles specially adapted to be worn around the waist, e.g. diapers specially adapted for gender distinct urine discharge pattern
    • 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
    • A61F13/53Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
    • 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
    • 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
    • A61F13/45Absorbent 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
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49058Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by the modular concept of constructing the diaper
    • A61F2013/49063Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by the modular concept of constructing the diaper the diaper having decoupled components
    • 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
    • A61F13/45Absorbent 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
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F2013/49068Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the shape of the outline
    • A61F2013/49069Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the shape of the outline being rectangular, i.e. parallelepiped
    • 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
    • A61F13/45Absorbent 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
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F2013/49068Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the shape of the outline
    • A61F2013/49076Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the shape of the outline as "I"-shaped
    • 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
    • A61F13/505Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators with separable parts, e.g. combination of disposable and reusable parts
    • A61F2013/5055Possibility of doubling or putting in new pieces

Abstract

A disposable diaper which has a liquid impervious backsheet (20) on which absorbent padding (24) is affixed and a liquid penetrating top sheet (28) attached on the periphery. Tape fasteners (30) attach overlapping sides of the backsheet for securing to the wearer. A slit (22) in the backsheet permits a moisture absorbing insert (36) to be added between the topsheet and the padding allowing withdrawal when saturated. The insert has a back (38), a pad (40) and a tab (42) with a wetness indicator integrally formed. A disposable pouch (50) may be optionally added for containment of the insert when removed. Double-use utility is created when the insert is removed, the diaper contains clean padding for further wear and use as with a conventional disposable diaper.

Description

DOUBLE-USE DI APER

TECHNICAL FIELD

The invention pertains to the general field of diapers and more particularly to diapers having an additional absorbent insert that is removable while still being worn, allowing double usage for extended wear.

BACKGROUND ART

Developments in diapers for incontinent children and adults has intensified in the last few years. This intensification is due to a more affluent society enjoying the convenience of disposing of the soiled garment rather than washing the material to remove the urine and fecal matter.

since prior art has been active, considerable improvement has been made in attempting to produce a disposable diaper that protects the person from being in contact with the moisture by absorbing the liquids in large quantities, changing the liquid to a gel and shielding the outside surface from moisture penetration.

While these refinements enhance the diaper's abilities, the utility remains unchanged. Prior art has yet to develop a disposable diaper that incorporates the latest features while adding an improvement that allows a more convenient and longer lasting usage further prolonging the comfort of the wearer. A search of the prior art did not disclose any patents that read directly on the claims of the instant invention however, the following U.S. patents were considered related:

PATENT NO. INVENTOR ISSUED

2,577,398 Blake 4 December 1951

2,584,393 McConnell 5 February 1952

2,627,859 Hargrave 10 February 1953

3, 045, 675 Brown 24 July 1962

3,658,064 Pociluyko 25 April 1972

3,693,621 Jarusik et al 26 September 1972

4,022,211 Timmons et al 10 May 1977

4,114,621 Mims, Jr. 19 September 1978

4,231,370 Mroz et al 4 November 1980

4,244,368 caradona 13 January 1981

4,507, 121 Leung 26 March 1985

4,733,674 Todd et al 19 April 1988

Pociluyko teaches a disposable absorbent diaper pad and separate garment allowing the pad to be changed also supported in the proper position on a wearer. The pad is made of layers of soft fibrous materials, one of which is in direct contact with the fluids facilitating ready disintegration. This pad material contains the properties allowing flushing in a toilet while the garment may be cleaned and reused. It will be noted that the garment must be removed from the wearer in order to detach the pad as a pocket is formed in the front and back.

Jarusik et al employ a holding device for retaining an elongated, absorbent pad on a supporting garment. This invention includes the combination of a supporting garment, a pad having the side regions folded over and attached to a center region through adhesive tacks and a holding device fastened to the garment supporting the pad. since the pad is secured under the device no means is available to slide the pad out, short of complete removal of the garment.

Mims, Jr. discloses an easily disposable liner having provisions for sampling devices and dampness condition indicators. The shape of the liner precludes its removal while still on the wearer as it has two large rounded areas connected in the middle forming a narrow portion at the crotch of the patient.

Caradona employs a single incontinent garment which is adapted to receive and mount either a disposable liner or a reusable liner. The garment contains inwardly projecting snap fasteners around the waist that attach to mating fasteners on the liner. A protective strap in the form of removable fabric strips or tapes having fasteners, engage the male fasteners on the garment thus allowing attachment of the liner without direct contact of the snaps to the wearer's body creating neutralizing means. As the liner in either case is the only method of absorbing body fluids, its removal while still on the wearer would be of no utility and the separate straps would be a useless appendage.

Wetness indicators per se have been in use in diapers for some time in various forms and types the most common is a wi eking strip with the moisture indicating substance in the material. As an example, water-soluble dye in a water-soluble polyvinyl alcohol binder has been used and a dye in a masking agent such as talcum powder has also been taught. Litmus is also well known in the art indicating wetness by changing color in the presence of an acid or alkali, Timmons et al, Mroz et al, Leung and Todd et al, all disclose wetness indicators in one form or another.

For background purposes and as indicative of the art to which the invention relates, reference may be made to the remaining cited patents including Blake, McConnell, Brown and Hargrave.

DISCLOSURE OF THE INVENTION

There are occasions when it is very inconvenient to change a diaper particularly, when changing an infant during times when an adaptable surface is not available and yet the diaper is saturated and must be removed to maintain the liquid within the diaper's outer cover, it is therefore the primary object of the invention to employ a removable moisture absorbent insert that is easily slipped out of a diaper that remains attached to the wearer and still have the basic absorption surface in the diaper itself. This object allows extended use and yet is not as bulky as if the entire absorbent material were to be employed all of the usable time. The convenience for this type of diaper as well as the pads ease of removing the insert, without discomfort to the wearer, is indeed an advancement in the art.

The insert is configured with rounded ends and a narrow width combined with a fixed layer of non-absorbent material between the insert and the wearer. The inserts configuration allows easy withdrawal and any scraping along the skin or genitals is eliminated as the basic non-absorbent material is integrally connected to the garment.

An important object of the invention is the use of a moisture proof layer on the insert positioned opposite the wearer. This layer protects the main diaper material and allows handling by the attendant without direct contact with the body liquids. Further, the moisture proof layer allows the insert to be completely saturated and if it is not changed, the urine will simply overflow into the absorbent material of the base diaper.

Another object of the invention is directed toward the use of a wetness indicator on the removable insert that alerts the attendant that the insert is completely saturated. This indication is accomplished using techniques well known in the art such as litmus paper that changes color in the presence of acid or alkali. The wicking effect is used to allow the indicator to be seen without complete removal from the diaper.

still another object of the invention allows the use of a deodoriser in both the removable insert and the absorbent material of the main diaper. This material is also well known in the art and its use enhances the desirability for the user by eliminating undesirable odors.

Yet another object of the invention is the addition of a moisture resistant detachable pouch for containing the used removable insert. The pouch is sized to retain the rolled up insert and includes a closure allowing storage until it may be conveniently disposed of.

It will be noted that the removable insert is not made for disjointing when the wearer has a bowel movement. in this case, the entire diaper is removed and discarded in a normal mariner.

These and other objects and advantages of the present invention will become apparent from the subsequent detailed description of the preferred embodiment and the claims taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

FIGURE 1 is a partial isometric view of the preferred embodiment viewed from the rear.

FIGURE 2 is a top plan (inside) view of the preferred embodiment with a cutaway portion illustrating the insert beneath the top sheet.

FIGURE 3 is a bottom (outside) view of the preferred embodiment illustrating the insert protruding from the diaper. FIGURE 4 is a cross-sectional view taken along lines 4-4 of FIGURE 3.

FIGURE 5 is a plan view of the moisture absorbing insert removed from the diaper for clarity.

FIGURE 6 is a cross-sectional view taken along lines 6-6 of FIGURE 5.

FIGURE 7 is an exploded view of the invention.

BEST MODE FOR CARRYING OUT THE INVENTION

The best mode for carrying out the invention is presented in terms of a preferred embodiment depicted pictorially in FIGURES 1-7. A liquid impervious backsheet 20, generally rectangular in shape, forms the outside surface of the diaper and is configured with inwardly contoured sides such that it will fit the lower torso region of a human body when overlapped on the sides. FIGURES 3 and 7 depict this backsheet 20 which is made of a flexible thermoplastic film such as polyethylene or the like. This backsheet 20 is much like the ones found on most modern disposable diapers except that it contains a slit 22 near the back edge. This slit 22 is almost one third the width of the backsheet 20 at its widest part or slightly shorter than the narrowest portion at the middle.

Absorbent padding 24 is attached to the top of the backsheet 20 and is located so that the slit 22 is not obstructed. This padding 24 is compressed sufficiently to maintain integrity of form by gluing, thermal bonding or other methods well known in the art. Further, the padding 24 may contain hydrocoloid polymer particles 26 or other super absorbent substances, that are intermixed within the fibers allowing human liquid waste to react changing the liquid into a gel thereby retaining it within the absorbent padding. The padding 24 itself may be any type well known in the art and commonly used for this utility such as wood pulp fibers, multiple plys of creped cεllulosic webbing, absorbent cotton, rayon fibers and the like.

A liquid penetrating top sheet 28 covers the padding 24 and is attached to the backsheet 20 on the entire periphery. This topsheet 28 is preferably a thin flexible sheet of moisture pervious material such as polypropylene, again well .known in the art, that separates the padding 24 from the wearer's body eliminating the feeling of continued wetness. As this material is attached only on the outside surface, the central portion is unobstructed. Body fluids pass easily through this material and into the padding 24 beneath.

in order to attach the diaper to the wearer, the sides are overlapped and securing means are employed to make the attachment. Pressure sensitive tape fasteners 30 are preferred which are temporarily connected to the diaper inside and when peeled-off are fastened to the outer surface of the overlap.

The ends that form the waist and the sides, that are contoured for the legs, further contain an elasticized waist 32 and elasticized leg cuffs 34 on each side of the backsheet 20 for conforming to the wearer's waist and legs. These elasticized areas are preferably formed by a plurality of elastic strands affixed to the backsheet such that pleating is formed when not in use and stretching occurs when the diaper is worn. Other methods cf εlasticizing are equally well suited, for this purpose.

A moisture absorbing insert 36 is retained between the padding 2-4 and the top sheet 28. One end of the insert is almost touching the front of the backsheet 20 and the other end protrudes slightly from the slit 22 in the backsheet 20 allowing withdrawal from the diaper when it becomes saturated with liquid without removing the complete diaper from the wearer. The insert 36 has a back 38 of liquid impervious flexible material of the same composition as the backsheet 20 and is basically rectangular in shape.

Fixably juxtapositioned on the insert back 38 is a moisture absorbing insert pad 40. This pad has the same racteristcis as the padding 24 and is fastened

Figure imgf000010_0001
thereunto forming a removable secondary moisture absorbing surface completely separate from the balance of the diaper. The configuration of this insert allows liquid in the form of body wastes to penetrate the diapers top sheet 28 and be absorbed in the pad 40. The pad 40 may also contain the same hydrogel substance 26 intermixed within the fibers accomplishing the same purpose as above actually allowing the diaper almost twice the capacity for liquid absorbency.

An insert tab 42 is connected to the insert back

38 and pad 40 providing a handle to extract the insert from within the diaper. This tab 42 may also incorporate a wetness indicator 44 in the form of litmus paper, water soluble dye or a myriad of other substances well known in the art that change color when in contact with a liquid in the form of urine from the wearer. The tab 42 is so configured and formed of a material allowing a wicking action to take place bringing the fluid in contact with the wetness indicator 44 denoting saturation without destroying the integrity of the barrier between the moisture and the wearer.

The tab 42 is illustrated attached in FIGURES 1 , 3- 6 and is shown by itself in FIGURE 7. The attachment of the tab 42 to the insert back 38 may be by any method such as heat fusion, adhesive, sewing and the like. In order to allow the insert 36 to be easily handled and disposed of, pressure sensitive adhesive 46 may be incorporated on the insert tab 42 overlayed with a removable cover 48. When the insert 36 is saturated and removed from the diaper, it may be rolled up and retained with the adhesive 46 on the tab 42. Alternately, the pressure sensitive adhesive 46 and cover 48 may be separately embodied from the tab 42 as illustrated in FIGURE 7 and in either case, the utility is the same. A disposable pouch 50 may be positioned under the insert 36 and removed simultaneously through the slit 22. This optional feature may be added particularly for traveling where disposal of the insert may not be easily accomplished and the attendant must retain the used insert separately. The pouch 50 preferably contains an integral closure 52 allowing sealing, completely eliminating the possibility of leakage in the stored condition. AS this pouch 50 is an option, it is illustrated only in FIGURE 7, however, in use it is simply placed flat between the padding 24 of the diaper and the insert back 38 or may be included anywhere with the diaper with equal ease.

A deodorizer 54 may be added to the diaper and insert 36 to reduce the perception of odor of the body waste retained therein.

In use, the diaper is placed on the infant, child or adult as the case may be in a usual manner overlapping the sides of the backsheet 20 and joining with the tape fasteners 30. when the insert 36 becomes saturated, the wetness indicator 44 changes color and the attendant withdraws the insert 36 from the diaper by grasping the tab 42 and pulling upward. since the topsheet 20 is between the wearer and the insert or padding 24, this transfer is easily accomplished without any particular unpleasantness. The insert 36 is then rolled up and fastened with adhesive 46 on the tab 42 and disposed of or if the pouch is utilized, it is placed inside and sealed with the closure 52. The diaper now has the padding 24 clean and fresh and may be worn as an ordinary disposable diaper creating the double use utility. While the invention has been described in complete detail and pictorially shown in the accompanying drawings it is not to be limited to such details, since many changes and modifications may be made in the invention without departing from the spirit and the scope thereof. For example, the diaper can be designed with the slit 22 located near the diaper front edge. Thus, allowing the insert 36 to be withdrawn from the front of the diaper. Additionally, the insert 36 may be used by placing it over the diaper top sheet of a conventional diaper to thus function as the primary recipient of body fluids. in this mode, after the insert is soiled, it is removed an discarded to allow the diaper to be available for second use. Hence, it is described to cover any and all modifications and forms which may come within the language and scope of the claims.

Claims

CLA I MS
1. A disposable diaper capable of dual use comprising:
a) a liquid impervious backsheet of a generally rectangular shape having a front, a back and sides, the backsheet having a slit near an edge of the back and the sides inwardly contoured into a shape that fits a human lower torso region when overlapped on a wearer's sides,
b) absorbent padding fixably juxtapositioned on the backsheet, positioned such that the slit is not obstructed, the padding defining disposable containment and storage of body wastes,
c) a liquid penetrating top sheet covering the padding and backsheet attached to the backsheet all around precluding the feeling of wetness to the wearer,
d) means to secure the sides together around the wearer, and
e) a moisture absorbing insert, having a first end and a second end, contained between the padding and the top sheet, with the first end almost touching the front of the backsheet and the second end protruding slightly from the slit in the backsheet allowing withdrawal when saturated with body fluids without removing the diaper from the wearer.
2. The diaper as recited in claim 1 further comprising an elasticized waist on the front and back of the backsheet for conforming exactly to the wearer's waist.
3. The diaper as recited in claim 2 wherein said elasticized waist further comprises a plurality of elastic strands affixed thereto such that pleating is formed when not in use and stretching when attached to a person.
4. The diaper as recited in claim 1 further comprising an elasticized leg cuffs on each sides of the backsheet for exactly conforming to the wearer's legs.
5. The diaper as recited in claim 4 wherein said elasticized leg cuffs further comprise a plurality of elastic strands affixed thereto such that pleating is formed, when not in use and stretching when attached to a person.
6. The diaper as recited in claim 1 wherein the absorbent padding has an additional layer of wood fluff intermixed with a gel forming substance allowing liquid waste to react changing the liquid into a gel allowing retention thereof within the padding.
7. The diaper as recited in claim 1 wherein said moisture absorbing insert further comprises:
a) an insert back of liquid impervious flexible material in rectangular shape, b) a moisture absorbing insert pad fixably juxtapositioned on the insert back for containment and storage of liquid body wastes, and c) an insert tab connected to the insert back and insert pad providing a handle to extract the insert from the diaper.
8. The diaper as recited in claim 7 wherein said insert tab further comprises: a wetness indicator visually depicting moisture saturation within the insert through color change alerting the attendant that the diaper needs replacing.
9. The diaper as recited in claim 8 wherein said wetness indicator further comprises: litmus paper changing color when in contact with body fluids due to wicking action bringing fluid in contact with the tab when the insert is completely saturated.
10. The diaper as recited in claim 8 wherein said wetness indicator further comprises water soluble dye changing color of the tab when in contact with body fluids due to wicking action bringing fluid in contact with the tab when the insert is completely saturated.
11. The diaper as recited in claim 7 wherein said insert tab further comprises: pressure sensitive adhesive on the insert tab allowing the tab to be adhered to the insert back when rolled up for disposal thereof.
12. The diaper as recited in claim 7 further comprising: a disposable pouch juxtapositioned with the moisture absorbing insert back in a removable manner allowing containment of the removed insert for disposal thereof.
13. The diaper as recited in claim 12 wherein said disposable pouch further comprises: a closure integral with the pouch allowing the pouch to be sealed.
14. The diaper as recited in claim 7 wherein said moisture absorbing insert further comprises: super absorbent gel forming substance intermixed within a filler material such as wood fluff allowing liquid waste to react changing the liquid into a gel allowing retention thereof within the pad.
15. The diaper as recited in claim 7 further comprising a deodorizer dispersed within the padding and the insert pad for absorbing odors of body wastes retained therein.
16. An improved disposable diaper capable of dual use having a liquid impervious backsheet, absorbent padding fixably juxtapositioned on the backsheet, a liquid penetrating top sheet covering the padding and the backsheet with means to secure the diaper to the wearer, the improvement comprises:
a) said backsheet having a slit near a back edge,
b) a moisture absorbing insert, having a first end and a second end, contained between the padding and the top sheet, with the first end almost touching a front portion of the backsheet and the second end protruding slightly from the slot in the backsheet allowing withdrawal when saturated with body fluids without removing the diaper from the wearer,
c) said moisture absorbing insert further aving: (1) an insert back of liquid impervious flexible material in rectangular shape,
(2) a moisture absorbing insert pad fixably juxtapositioned on the insert back for containment and storage of liquid body wastes, and
(3) an insert tab connected to the insert back and insert pad providing a handle to extract the insert from the outside of the diaper.
17. The diaper as recited in claim 16 wherein said insert tab further comprises: a wetness indicator visually depicting moisture saturation within the insert through color change alerting the attendant that the diaper needs replacing.
18. The diaper as recited in claim 16 wherein said insert tab further comprises: pressure sensitive adhesive on the insert tab allowing the tab to be adhered to the insert back when rolled up for disposal thereof.
19. The diaper as recited in claim 16 further comprising: a disposable pouch juxtapositioned. with the moisture absorbing insert back in a removable manner allowing containment of the removed insert for disposal thereof.
20. The diaper as recited in claim 19 wherein said disposable pouch further comprises: a closure integral with the pouch allowing the pouch to be sealed.
21. The diaper as recited in claim 16 wherein said moisture absorbing insert further comprises: hydrogel particles intermixed within the insert pad allowing liquid waste to react changing the liquid into a gel thereby retaining it within the pad.
22. The diaper as recited in claim 16 further comprising deodorizer dispersed within the padding and the insert pad for absorbing odors of body wastes retained therein.
23. A disposable diaper capable of dual use comprising:
a) a conventional disposable diaper, and b) a moisture absorbing insert placed over the top sheet of the diaper to thus function as the primary recipient of body fluids, whereupon soiling said insert is removed and discarded allowing the diaper to be available for a second use, where said insert comprises:
(1) an insert back of liquid impervious flexible material in rectangular- shape,
(2) a moisture absorbing insert pad fixably juxtapositioned on the insert back for containment and storage of liquid body wastes, and
(3) an insert tab connected to the insert back and insert pad providing a handle to extract the insert from the diaper.
PCT/US1990/002302 1990-04-30 1990-04-30 Double-use diaper WO1991016871A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/US1990/002302 WO1991016871A1 (en) 1990-04-30 1990-04-30 Double-use diaper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1990/002302 WO1991016871A1 (en) 1990-04-30 1990-04-30 Double-use diaper

Publications (1)

Publication Number Publication Date
WO1991016871A1 true WO1991016871A1 (en) 1991-11-14

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PCT/US1990/002302 WO1991016871A1 (en) 1990-04-30 1990-04-30 Double-use diaper

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Country Link
WO (1) WO1991016871A1 (en)

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US5405342A (en) * 1991-12-31 1995-04-11 Kimberly-Clark Corporation Disposable absorbent article with flushable insert
WO1996010973A2 (en) * 1994-10-10 1996-04-18 The Procter & Gamble Company Disposable cover for an absorbent material
WO1997019663A1 (en) * 1995-12-01 1997-06-05 The Procter & Gamble Company Absorbent article with removable backsheet
US5688258A (en) * 1995-05-02 1997-11-18 The Procter & Gamble Company Disposable cover for an absorbent materials
AU697182B2 (en) * 1994-11-23 1998-10-01 Kimberly-Clark Worldwide, Inc. Method of forming an absorbent article
WO2005020852A2 (en) * 2003-09-02 2005-03-10 Tracy Rhonda Disposable diaper having removable core
US7264615B2 (en) 2001-04-03 2007-09-04 Kimberly-Clark Worldwide, Inc. Absorbent insert for use with an outer absorbent garment
WO2008050309A1 (en) * 2006-10-26 2008-05-02 The Procter & Gamble Company Method for using a disposable absorbent article as training pant
WO2008132619A1 (en) * 2007-04-30 2008-11-06 Kimberly-Clark Worldwide, Inc. Collection and testing of infant urine using an absorbent article
US7491863B2 (en) 2002-12-31 2009-02-17 Kimberly-Clark Worldwide, Inc. Secondary lotioned article
US7601145B2 (en) * 1997-03-27 2009-10-13 The Procter & Gamble Company Disposable absorbent articles having multiple absorbent core components including replaceable components
US7727211B2 (en) 2001-07-23 2010-06-01 The Procter & Gamble Company Absorbent article having a replaceable absorbent core component having an insertion pocket
US7919666B2 (en) * 2002-12-31 2011-04-05 Kimberly-Clark Worldwide, Inc. Personal care articles with fragrance delivery system
US8926579B2 (en) 2013-03-08 2015-01-06 The Procter & Gamble Company Fastening zone configurations for outer covers of absorbent articles
US8932273B2 (en) 2012-06-29 2015-01-13 The Procter & Gamble Company Disposable absorbent insert for two-piece wearable absorbent article
US8936586B2 (en) 2013-03-08 2015-01-20 The Procter & Gamble Company Ergonomic grasping aids for reusable pull-on outer covers
US8974432B2 (en) 2010-07-22 2015-03-10 The Procter & Gamble Company Outer cover for an absorbent article
US8992497B2 (en) 2009-01-15 2015-03-31 The Procter & Gamble Company Two-piece wearable absorbent articles
US8998870B2 (en) 2009-01-15 2015-04-07 The Procter & Gamble Company Reusable wearable absorbent articles with anchoring systems
US9060905B2 (en) 2013-03-08 2015-06-23 The Procter & Gamble Company Wearable absorbent articles
US9078792B2 (en) 2011-06-30 2015-07-14 The Procter & Gamble Company Two-piece wearable absorbent article having advantageous front waist region and landing zone configuration
US9078789B2 (en) 2013-03-08 2015-07-14 The Procter & Gamble Company Outer covers and disposable absorbent inserts for pants
US9089456B2 (en) 2009-01-15 2015-07-28 The Procter & Gamble Company Reusable outer cover for an absorbent article having zones of varying properties
US9095478B2 (en) 2010-07-22 2015-08-04 The Procter & Gamble Company Flexible reusable outer covers for disposable absorbent inserts
WO2015143291A1 (en) 2014-03-20 2015-09-24 The Procter & Gamble Company Humidity-stable package of disposable absorbent articles with wetness indicators
US9180059B2 (en) 2010-05-21 2015-11-10 The Procter & Gamble Company Insert with advantageous fastener configurations and end stiffness characteristics for two-piece wearable absorbent article
US9387138B2 (en) 2009-01-15 2016-07-12 The Procter & Gamble Company Reusable outer covers for wearable absorbent articles
USD813382S1 (en) 2015-07-14 2018-03-20 Ricardo Guadron Diaper with litmus indicator
EP3200738A4 (en) * 2014-09-29 2018-03-21 Kimberly-Clark Worldwide, Inc. Fixed and removable absorbent cores for absorbent articles
US10159611B2 (en) 2014-09-29 2018-12-25 Kimberly-Clark Worldwide, Inc. Fixed and removable absorbent cores for absorbent articles
US10159609B2 (en) 2014-09-29 2018-12-25 Kimberly-Clark Worldwide, Inc. Fixed and removable absorbent cores for absorbent articles

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US5613959A (en) * 1991-09-03 1997-03-25 Kimberly-Clark Corporation Disposable absorbent article with flushable insert
US5458591A (en) * 1991-12-31 1995-10-17 Kimberly-Clark Corporation Disposable absorbent article with flushable insert
US5476457A (en) * 1991-12-31 1995-12-19 Kimberly-Clark Corporation Disposable absorbent article with flushable insert
US5405342A (en) * 1991-12-31 1995-04-11 Kimberly-Clark Corporation Disposable absorbent article with flushable insert
WO1996010973A2 (en) * 1994-10-10 1996-04-18 The Procter & Gamble Company Disposable cover for an absorbent material
WO1996010973A3 (en) * 1994-10-10 1996-05-30 Procter & Gamble Disposable cover for an absorbent material
AU697182B2 (en) * 1994-11-23 1998-10-01 Kimberly-Clark Worldwide, Inc. Method of forming an absorbent article
US5688258A (en) * 1995-05-02 1997-11-18 The Procter & Gamble Company Disposable cover for an absorbent materials
WO1997019663A1 (en) * 1995-12-01 1997-06-05 The Procter & Gamble Company Absorbent article with removable backsheet
US7601145B2 (en) * 1997-03-27 2009-10-13 The Procter & Gamble Company Disposable absorbent articles having multiple absorbent core components including replaceable components
US7264615B2 (en) 2001-04-03 2007-09-04 Kimberly-Clark Worldwide, Inc. Absorbent insert for use with an outer absorbent garment
US7727211B2 (en) 2001-07-23 2010-06-01 The Procter & Gamble Company Absorbent article having a replaceable absorbent core component having an insertion pocket
US7919666B2 (en) * 2002-12-31 2011-04-05 Kimberly-Clark Worldwide, Inc. Personal care articles with fragrance delivery system
US7491863B2 (en) 2002-12-31 2009-02-17 Kimberly-Clark Worldwide, Inc. Secondary lotioned article
WO2005020852A3 (en) * 2003-09-02 2005-12-01 Tracy Rhonda Disposable diaper having removable core
US7431716B2 (en) * 2003-09-02 2008-10-07 Rhonda Tracy Disposable diaper having removable core
WO2005020852A2 (en) * 2003-09-02 2005-03-10 Tracy Rhonda Disposable diaper having removable core
WO2008050309A1 (en) * 2006-10-26 2008-05-02 The Procter & Gamble Company Method for using a disposable absorbent article as training pant
GB2463808A (en) * 2007-04-30 2010-03-31 Kimberly Clark Co Collection and testing of infant urine using an absorbent article
WO2008132619A1 (en) * 2007-04-30 2008-11-06 Kimberly-Clark Worldwide, Inc. Collection and testing of infant urine using an absorbent article
GB2463808B (en) * 2007-04-30 2011-11-02 Kimberly Clark Co Collection and testing of infant urine using an absorbent article
AU2008243893B2 (en) * 2007-04-30 2013-02-07 Kimberly-Clark Worldwide, Inc. Collection and testing of infant urine using an absorbent article
US9011402B2 (en) 2009-01-15 2015-04-21 The Procter & Gamble Company Disposable absorbent insert for two-piece wearable absorbent article
US9387138B2 (en) 2009-01-15 2016-07-12 The Procter & Gamble Company Reusable outer covers for wearable absorbent articles
US8992497B2 (en) 2009-01-15 2015-03-31 The Procter & Gamble Company Two-piece wearable absorbent articles
US8998870B2 (en) 2009-01-15 2015-04-07 The Procter & Gamble Company Reusable wearable absorbent articles with anchoring systems
US9089456B2 (en) 2009-01-15 2015-07-28 The Procter & Gamble Company Reusable outer cover for an absorbent article having zones of varying properties
US9180059B2 (en) 2010-05-21 2015-11-10 The Procter & Gamble Company Insert with advantageous fastener configurations and end stiffness characteristics for two-piece wearable absorbent article
US8974432B2 (en) 2010-07-22 2015-03-10 The Procter & Gamble Company Outer cover for an absorbent article
US9095478B2 (en) 2010-07-22 2015-08-04 The Procter & Gamble Company Flexible reusable outer covers for disposable absorbent inserts
US9078792B2 (en) 2011-06-30 2015-07-14 The Procter & Gamble Company Two-piece wearable absorbent article having advantageous front waist region and landing zone configuration
US8932273B2 (en) 2012-06-29 2015-01-13 The Procter & Gamble Company Disposable absorbent insert for two-piece wearable absorbent article
US9060905B2 (en) 2013-03-08 2015-06-23 The Procter & Gamble Company Wearable absorbent articles
US8936586B2 (en) 2013-03-08 2015-01-20 The Procter & Gamble Company Ergonomic grasping aids for reusable pull-on outer covers
US8926579B2 (en) 2013-03-08 2015-01-06 The Procter & Gamble Company Fastening zone configurations for outer covers of absorbent articles
US9078789B2 (en) 2013-03-08 2015-07-14 The Procter & Gamble Company Outer covers and disposable absorbent inserts for pants
WO2015143291A1 (en) 2014-03-20 2015-09-24 The Procter & Gamble Company Humidity-stable package of disposable absorbent articles with wetness indicators
US10159609B2 (en) 2014-09-29 2018-12-25 Kimberly-Clark Worldwide, Inc. Fixed and removable absorbent cores for absorbent articles
EP3200738A4 (en) * 2014-09-29 2018-03-21 Kimberly-Clark Worldwide, Inc. Fixed and removable absorbent cores for absorbent articles
US10117786B2 (en) 2014-09-29 2018-11-06 Kimberly-Clark Worldwide, Inc. Fixed and removable absorbent cores for absorbent articles
US10159611B2 (en) 2014-09-29 2018-12-25 Kimberly-Clark Worldwide, Inc. Fixed and removable absorbent cores for absorbent articles
USD813382S1 (en) 2015-07-14 2018-03-20 Ricardo Guadron Diaper with litmus indicator

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