US3847702A - Process for manufacture of integral diaper waist band fastener - Google Patents

Abstract

This invention teaches a single use, rectangular area, pressure sensitive adhesive waist band securing means suitable for holding the diaper on a baby''s torso without pins. A first face of a thin, flexible, nonextensible first waist band is permanently, completely secured to the exterior fluid resistant diaper membrane, and is disposed completely across the first diaper and normal to the diaper sides, forming two first waist band terminus areas at the diaper sides. On the face of the first waist band terminus areas opposed to the absorbent diaper pad, each one of the pair of first waist band terminuses can have an adhesive securing means. Each adhesive securing means comprises a pressure sensitive adhesive coating area permanently secured to a first waist band terminus area, and the coating area is completely covered with a removable, protective release paper sheet area. A first face of a thin, flexible, nonextensible, second waist band is permanently secured to the fluid resistant diaper membrane, disposed completely across and bonded to the second diaper end, normal to the diaper sides. The second waist band adhesive securing means has a pair of integral, nonextensible band short extensions, each one of the pair oppositely extending beyond each one of the pair of diaper sides. Each of the band short extensions has a pressure sensitive adhesive coating area permanently secured to the band short extension face which is adjacent to the fluid absorbtion side of the diaper. Each of the adhesive coating areas are completely covered by removable, protective release paper sheet areas. The pressure sensitive adhesive waist band securing means are formed from sheet stock components, which are formed into individual waist bands, and then bonded to a diaper web being continuously formed on an assembly line. The first and second waist bands are both positioned and bonded to the diaper web prior to cutting the diaper web into individual diapers, each diaper then having a pair of waist bands.

Description

United StatesPatent 1 Jones, Sr.

[ 1 Nov. 12, 1974 PROCESS FOR MANUFACTURE OF 5 INTEGRAL DIAPER WAIST BAND FASTENER [76] Inventor: John Leslie Jones, Sr., 1070 Glen Oaks Blvd., Pasadena, Calif. 91 105 [22] Filed: Oct. 4, 1971 [21] Appl. No: 185,936

Related US. Application Data [62] Division of Ser. No. 867,505, Oct. 20, 1969, Pat. No.

[52] US. Cl 156/265, 156/269, 156/519 [51] Int.Cl B32b 31/00 [58] Field of Search 156/250, 263, 256, 264, 156/265, 269, 519

[56] 7 References Cited I UNITED STATES PATENTS 2,597,868 5/1952 Hogue et al. 156/519 3,758,363 9/1973 Frick..... 156/519 Primary Examiner-Douglas J. Drummond [57] ABSTRACT This invention teaches a single use, rectangular area, pressure sensitive adhesive waist band securing means suitable for holding the diaper on a babys torso without pins. A first face of a thin, flexible, nonextensible first waist band is permanently, completely secured to the exterior fluid resistant diaper membrane, and is disposed completely across the first diaper and normal to the diaper sides, forming two first waist band terminus areas at the diaper sides. On the face of the first waist band terminus areas opposed to the absorbent diaper pad, each one of the pairof first waist band terminuses can have an adhesive securing means. Each adhesive securing means comprises a pressure sensitive adhesive coating area permanently secured to a first waist band terminus area, and the coating area is completely covered with a removable, protective release paper sheet area. A first face of a thin, flexible, nonextensible, second waist band is permanently secured to the fluid resistant diaper membrane, disposed completely across and bonded to the second diaper end, normal to the diaper sides. The second waist band adhesive securing means has a pair of integral, nonextensible band short extensions, each one of the pair oppositely extending beyond each one of the pair of diaper sides. Each of the band short extensions has a pressure sensitive adhesive coating area permanently secured to the band short extension face which is adjacent to the fluid absorbtion side of the diaper. Each of the adhesive coating areas are completely covered by removable, protective release paper sheet areas. The pressure sensitive adhesive waist band securing means are formed from sheet stock components, which are formed into individual waist bands, and then bonded to a diaper web being continuously formed on an assembly line. The first and second waist bands are both positioned and bonded to the diaper web prior to cutting the diaper web into individual diapers, each diaper then having a pair of waist bands.

1 Claim, 11 Drawing Figures PATENTEUNOV 12 1924 3847702 sum-m2 INVENTOR PROCESS FOR MANUFACTURE OF INTEGRAL DIAPER WAIST BAND'FASTENER CROSS REFERENCE TO A RELATED APPLICATION This application is related to the US. patent application filed on this same date titled PLEATED DIAPER by the same sole inventor.

BACKGROUND OF THE INVENTION It is well known that washable, reusable cloth diapers are worn to partially clothe a baby up to the age of about two years. The cloth diapers are traditionally secured on the baby torso by safety pin fasteners. Commercial single use, disposable baby diapers are now likewise secured on the baby body with safety pin fasteners. The separate safety pins can be lost, swallowed by a baby, and can puncture the babys skin. This inventive improvement in waist band adhesive securing means as a diaper fastener device for single use, disposable baby diapers is very desirable, since it eliminates these hazardous problems.

SUMMARY OF THE INVENTION This invention teaches a single use, rectangular area, pressure sensitive adhesivewaist band securing means, suitable for holding the diaper on a babys torso without pins. A first face of a thin, flexible, nonextensible, first waist band is permanently, completely secured to the exterior fluid resistant diaper membrane, and is disposed completely across the first diaper end normal to the diaper side, forming two first waist band terminus areas at the diaper sides. On the face of the first waist band terminus areas opposed to the absorbent diaper pad, each one of the pair of first waist band terminuses can have an adhesive securing means. Each adhesive securing means comprises a pressure sensitive adhesive coating area permanently secured to a first waist band terminus area, and the coating area is completely covered with a removable, protective release paper sheet area." A first face of a thin, flexible, noriextensible, second waist band is permanently secured to the fluid resistant diaper membrane disposed completely across and bonded to the second diaper end, normal to the diaper sides. The second waist band adhesive securing means has a pair of integral, nonextensible band short extensions, each one of the pair oppositely extending beyond each one of thepair of diaper sides. Each of the band short extensions has a pressure sensitive adhesive coating area permanently secured to the band short extension face which is adjacent to the fluid absorbtion side of the diaper. Each of the adhesive coatingareas are completely covered by removable, protective release paper sheet areas. The pressure sensitive adhesive waist band securing means are formed from sheet stock components, which are formed into individual waist bands and bonded to a diaper web being continuously formed on an assembly line. The first and second'waist bands are both positioned and bonded to the diaper web prior to cutting the diaper web into individual diapers, each diaper then having a pair of waist bands.

Included in the objects of this invention are:

First, to provide an integral pressure sensitive'adhesive waistband securing means for a single use, dispos able baby diaper.

Second, to provide a safe, simple, integral waist band securing means for holding a single use, baby diaper in a normal crotch enveloping position on a baby.

Third, to provide a single use, disposable diaper which is adapted to maximum placement of the fluid absorbent pad in a functional position in and around the crotch of a baby toddler.

Fourth, to provide a simple manufacturing process for a disposable baby diaper having pressure sensitive waist band securing means.

Fifth, to provide an economical process for manufacturing a pressure sensitive waist band securing means disposable baby diaper.

Further objects and advantages of this invention will become apparent in the following description to be read in conjunction with the accompanying drawing.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a single use, disposable, multiple accordion type pleated baby diaper, having integral adhesive diapersecuringmeans for a babys torso.

FIG. 2 is an elevational projective view of a multiple accordion pleated, single use, disposable diaper of FIG. 1, now tightly folded as for packaging in a commercial retail carton.

FIG. 3 is an enlarged sectional view through 33 of FIG. 1, illustrating the construction of the first waist band pressure sensitive adhesive securing means for the baby diaper.

FIG. 4 is an enlarged sectional view through 4-4 of FIG. 1, illustrating the construction of the second waist band pressure sensitive adhesive securing means for the baby diaper.

FIG. 5 is a plan viewillustrating the method of partially fabricating the modification of the first waist band and the second waist band on a moving diaper web.

FIG. 6 is a perspective view illustrating a further modification of the method of manufacturing the integral diaper of this invention.

FIG. 7 is an enlarged cross sectional view through 7-7 or 7'--7' of FIG. 6, illustrating the structure of the waist band sheeting construction.

FIG. 8 is a view of the integral diaper of this invention secured in functional position on a babys torso.

FIG. 9 is a plan view of another diaper modification illustrating further diaper adhesive securing means of this invention.

FIG. 10 illustrates further cross sectional view details of the modified first waist band adhesive securing means through 10-10 of FIG. 9.

FIG. 11 illustrates further cross sectional view details of the modified second waist band adhesive securing means through 11-11 of FIG. 9.

DESCRIPTION OF TI-IE PREFERRED EMBODIMENT Referring to FIG. 1 in detail, a single use, disposable,integral diaper 1 hasmultiple, accordion foldedpleats 2 disposed parallel to thecenter line 3 and disposed normal to thecenter line 4. Thediaper 1 is rectangular in area, having alength'axis 5 and a width axis 6. Each of themultiple pleats 2 has a pair ofpleat sides 7 and 8, and eachpleat side 7 and 8 can have equal-pleat width 9. The upper face of the diaper fluidabsorbent pad 10, shown in partial sectional view, has a moisture resistant or fluid impermeable, exterior,thin membrane sheet 11 which covers and encloses one face of the fluidabsorbent pad 10. Thethin membrane sheet 11 can be a very thin, fluid impermeable plastic film or a chemically treated, wet strength paper base sheet, also resistant to fluid penetration.

Thediaper 1 illustrated is rectangular in planar shape, but it can also be a planar square of the required dimensions. A square is to be considered a special rectangular shape.

A first face of a thin, flexible, nonextensible,first waist band 12 is permanently, completely secured to the exterior face of thethin membrane sheet 11, parallel to the width axis 6 at thefirst diaper end 13. Theband 12 is disposed completely across thediaper end 13, having a pair ofopposed band terminuses 14, 14' which terminate at theopposed diaper sides 15, 15. Thefirst waist band 12 has a pair of first waist band adhesive securing means 16, 16', each means including a pressure sensitive adhesive coating area permanently secured on the second face ofwaist band 12 on theband terminuses 14, 14. Each adhesive coating area can be equal in width to the narrowwaist band width 21, and is completely covered by 'a removable protective release paper sheet, as will be described in detail later.

A first face of a thin, narrow, flexible, nonextensible,second waist band 17, is shown permanently secured to the exterior face of the fluidresistant diaper membrane 11, and disposed completely across thesecond diaper end 18, parallel to thediaper fold axis 4. Thesecond waist band 17 has a pair of integral, nonextensible bandshort extensions 19, 19', oppositely extending beyond the respective diaper sides 15, 15'. The bandshort extensions 19, 19 form a portion of the pressure sensitive adhesive coating securing means 20, 20' which have pressure sensitive adhesive faces, each cooperatively adjacent to the fluid absorbtive side of the diaper. Each pressure sensitive adhesive coating area can be equal in width to the waist band width 22, and is completely covered by a removable protective release paper sheet, to form the second waist band adhesive securing means 20, 20.

FIG. 2 illustrates the compact volume of a single use, disposable,integral diaper 1, accordion pleated folds closed in a position suitable for commercial packing in a retail carton withother diapers 1. The waist bandshort extension 19 is shown extended from thediaper pleat 7, with the second band adhesive securing means 20 disposed on the obverse band side. The multiple,accordion fold pleats 2 are contiguous, with thesides 7 and 8 adjacent to each other. Thefirst waist band 12 is shown secured to thediaper end 13, and the first band adhesive securing means 16 is shown disposed onband 12. Thesecond waist band 17 is shown secured to the directly opposeddiaper end 18.

FIG. 3 illustrates thediaper 1 construction through 3- 3 of FIG. 1, wherein thefirst waist band 12 is shown bonded to the exterior face of thethin membrane 11. The sectional view also illustrates the typical well known construction of single use diapers, having a nonwoven,porous cover sheet 30 which permits absorbtion of a babys waste products in theabsorbent pad 10, made of fluffed wood pulp, tissue paper, cotton or rayon fibers or the like. The typical fluid impermeable exterior,thin membrane sheet 11 folds over theedge 31 ofabsorbent pad 10 atfold 32, and theflap 33 ofmembrane sheet 11 is bonded to theunderlying nonwoven sheet 30. The bonding offlap 33 tosheet 30 may be by heat seal or adhesive, as is well known in the prior art.

Thefirst waist band 12 is a thin, flexible, nonextensible composite structure which is soft and warm to human touch.Band 12 is not rigid or sharp edged, eliminating cutting the baby skin. The nonextensible composite structure ofband 12 typically can be a laminate of a thin plastic film and an open mesh woven or nonwoven fiber gauze; or it can be a thin plastic film laminated to paper, typically 50-100 lb. weight. The composite structure is specifically adapted to provide the nonextensibility property ofband 12. The plastic film component ofband 12 should be chemically compatible and preferably heat sealable to themembrane sheet 11, although a cement or adhesive can be used tobond 11 and 12 in a known technique. The nonextensibility,

softness and the construction properties ofband 12 andband 17 are to be fully equivalent to each other.

On theband terminus 14 ofband 12, a pressure sensitiveadhesive coating area 34 is permanently secured to and covers theband width 21, for acoating area length 35. A thin releasepaper sheet area 36 at least completely covers all of the pressure sensitiveadhesive coating area 34, and is easily removed therefrom with finger tips. The combination of theadhesive coating area 34, permanently secured to a portion ofwaist band 12, and covered by the releasepaper sheet area 36, is the first waist band adhesive securing means 16. The adhesive securing means 16 is equivalent to the adhesive securing means 16 in chemical and mechanical structure, one being the geometrical mirror image of the other.

FIG. 4 illustrates the construction ofdiaper 1 through 44 of FIG. 1, wherein thesecond waist band 17 is shown bonded to themembrane 11. The sectional view again illustrates the well known typical single use diaper construction, in which the nonwovenporous cover sheet 30 is secured to the overlappingflap 33 of thesheet 11, as by heat seal or adhesive bond. Thesecond waist band 17 has a nonextensible mechanical structure equivalent to the nonextensible structure of thefirst waist band 12. The plastic film component ofband 17 should be chemically compatible, and preferably heat sealable to themembrane sheet 11, although a cement or adhesive can be used tobond 11 and 17 by well known techniques. The short waist band extension 19' is an integral, continuous extension of theportion 37 of thesecond waist band 17 secured to themembrane 11. Theextension 19 can have threelength sections 38, 39, and 40, which together form the total length of 19'. Theextension sub-length 39 is completely, permanently covered over the band width 22 with a pressure sensitiveadhesive coating area 41. A thin, releasepaper sheet area 42 completely covers all of the pressure sensitiveadhesive coating area 41, extending beyond 41 on both of its ends to form thedry alleys 43,44.

Thedry alleys 43,44 serve as handles for the ready removal of thesheet area 42 with finger tips.

The combination 19' as thesub lengths 38, 39 and 40, together with the pressure sensitiveadhesive coating area 41 and the thin releasepaper sheet area 42, together form a second waist band adhesive securing means 20'. The adhesive securing means 20 is equivalent to the adhesive securing means 20' in chemical and mechanical structure, one being the geometrical mirror image of the other.

The nonextensibility ofwaist bands 12 and 17 is an important property of this invention. Since the fluidimpermeable membrane sheet 11 is typically thin plastic, e.g., 0.0005 inch thick polyethylene, it will readily cold stretch on tensile loading. Thenonextensible waist bands 12 and 17 are substantially thicker, e.g. 0.004-0.010 inches, and theirband widths 21 and 22 are typically to 1 inch. Thus in application of the single use diaper, thenonextensible waist bands 12 and 17 provide structural strength in terms of no elongation of the securing waist bands, preventing theintegral diaper 1 from structurally stretching or distending at the babys waist and then falling off the babys torso.

The releasepaper sheet areas 36 and 42, and the like,

' are well known paper sheet structures, chemically treated on at least one sheet face to provide a treated face which will adhere to a pressure sensitive adhesive coating area, and protect the coating area, yet with no permanent stick to the adhesive. The release paper, 36 and 42, and the like, can be readily removed with finger tips. Typically, 36 and 42 are 0.004 to 0.010 inch thick sheets.

This invention also teaches a simple process of fabrieating thesingle use diaper 1, or the like, adapted to continuously fabricating diapers from an endless diaper web continuously formed on an assembly line. In FIG. 5, an endless, movingdiaper web 50 is shown moving in thedirection 51. Athin membrane sheet 11 is shown uppermost onweb 50, covering the absorbent pad shown in a partial sectional view. The first waist band 12', having first band adhesive securing means 16", 16" uppermost, is bonded to the membrane 11'. Thesecond waist band 17 is also bonded to the membrane sheet 11' of thecontinuous web 50, and has thesecond waist band adhesive securing means and 20" facing downward. By bonding the bands 12' and 17' adjacently parallel, and parallel to theweb width 52, theweb 50 can be completely severed at the center line 5-5 betweenbands 12 and 17', can provide afirst waist band 12 on one diaper end 13', or the like for one diaper; and asecond waist band 17 on a second diaper end 18', or the like, on another diaper.

FIGS. 6 and 7 together illustrate the diaper manufacturing process in further detail. In FIG. 6 the single use diaper,endless web 70 is moving in the direction 71, thethin membrane sheet 11" shown uppermost, as in FIG. 5. Two rolls 72 and 73 of previously prepared waist band stock sheeting are shown unreeling stock sheet in therespective reel directions 74 and 75. Therolls 72 and 73 are positioned above theweb 70, and are each adapted to form a sheet terminus 76 and 77 respectively at the center line 8-8. The waistband stock sheetings 78 and 79, ofrolls 72 and 73 respectively, are completely severed at therespective lines 80 and 81, to form a pair of spaced and positioned potential waist bands 82 and 83 respectively on theweb 70. On bonding of the newly severed bands 82 and 83 on theweb 70, by standard heat sealing or cementing techniques, the severed and bonded bands derived from bands 82 and 83, become equivalent to the pair ofwaist bands 12 and 17' of FIG. 5.

The waistbands stock sheetings 78 and 79, as sectioned at 7-7 and 7'7' in FIG. 6, as shownin cross sectional detail in FIG. 7. Thesheetings 78 and 79 are equivalent in cross sectional structure, as shown in FIG. 7. The non-extensible, thin, flexible water resistant, bondable sheeting 84.has aweb width 85. Theweb width 85 is adapted to become the required values for theroll widths 86 and 87 of therespective rolls 72 and 73. The waist band adhesive securing means 88 and 89 Prepared rolls ofstock sheeting 78, or the like, are fabricated in the required width, and applied to theweb 70, or the like. Obviously, the severing ofweb 70, or the like, and ofstock sheetings 78 and 79 at and 81, or the like, may be accomplished by well known processes, utilizing moving or stationary reciprocating knife blade cutters, synchronized with the diaper web and roll velocities of motion. The accordion fold pleats of diaper l, or the like, may be formed by well known means, and typically can be /2 to 1 inch wide per fold width 9.

In application of this integral diaper, no conventional safety pins are required. Thepleats 2 of diaper l of FIG. 2 are partially opened and the center line 3 of the diaper laid parallel and underneath the baby's backbone line in the conventional, well known manner. Thepleats 2 remain constricted in opening, in and around the babys crotch, placing a maximum of pleated, foldedabsorbent pad 10 directly adjacent the positions on the babys torso which emit waste products. Thepleats 2 ofdiaper 1 are fully distended at the first andsecond waist bands 12 and 17, or the like.

As shown in FIG. 8, the pleats 2' of diaper 1' form a fan-shaped distension on thebabys body 100, being relatively compressed in and around thebabys crotch 101; and being openly distended over thebabys abdomen 102. Thefirst waist band 12" is shown stretched to its full length around thebabys abdomen 102, and thesecond waist band 17" is also fully distended and overlaps thefirst waist band 12". The first waist band adhesive securing means 16 and 16' have been modified by removal of the releasepaper sheet areas 36, or the like, and by adhesively bonding theband 12" interiorly to the non-wovenporous sheet 30, or the like, as at 103 and 104. The second waist band adhesive securing means 20 and 20 have also been modifiedby removing the releasepaper sheet areas 42, or the like, and adhesively bonding theadhesive coating areas 41, or the like, to the first waist band to formadhesive bonds 105 and 106 on theband 12".

Thus the integral diaper l requires no safety pin fasteners to secure the diaper on the babys torso, and places the maximum mass of absorbent pad in a position to collect the babys waste products. The newborn baby is relatively inactive physically and will not necessarily require the adhesive bond securing means 16 and 16' on thefirst waist band 12. Hence, for the smallest size diaper, typically an area of 10inches X 14 inches, the securing means 16 and 16' are omitted. For the more active babies, normally 12 lb. and up in weight, the first waist band adhesive securing means 16 and l6 as well as the second waist band securing means 20 and 20 are both required. The two sets of waist band securing means 16, 16' and 20, 20 are particularly necessary for active toddlers, to prevent the thin, fluidimpermeable membrane 11, or the like, from cold stretching while the baby moves, and thus allows.the loose diaper to drop off the babys abdomen.

In the integral diaper modification illustrated in FIGS. 1-4, and the process illustrated in FIGS. -7, the first and second waist bands are secured exteriorily on the membrane sheet face, opposed to the membrane sheet face adjacent to the absorbtion pad. By further modifying the integral diaper construction, the first and second waist bands can be secured to the membrane sheet face which is coadjacent the absorbent pad.

Thus, the first and second waist bands can be dis- I posed coadjacent the absorbent pad, as in the diaper construction of FIG. 9. The integral,rectangular area diaper 110 is shown in partial plan view, the thin, fluid resistant membrane sheet area 111 is shown uppermost. The fluidabsorbent pad 112 is shown in partial sectional view lying below membrane area 111. Thefirst waist band 113 is shown just underlying the membrane sheet area 111, and theband 113 is completely bonded across the diaper width 114 to the sheet area 111, at thefirst diaper end 115. The first waist band adhesive securing means 116 and 116' are shown formed on theband terminuses 117 and 117.

Thesecond waist band 118 is also shown partially disposed underneath the membrane sheet area 111, coadjacent one face of the fluidabsorbent pad 112. Thewaist band 118 is likewise bonded the width 114 of the second diaper end 119. The second waist band adhesive securing means 120 and 120 are disposed on the integral second waist bandshort extensions 121 and 121' respectively. Thediaper 110 is folded about thediaper fold axis 122 on placement on a babys torso.

FIG. shows in cross sectional view through 1010 of FIG. 9, the construction of the first band adhesive securing means 116. The nonwoven,porous cover sheet 131 is disposed coadjacent and completely covers the fluid absorbent pad l/2, both components terminating at thepad edge 133. The thin, narrow flexible,first waist band 113 is bonded to the thin, fluid impermeable membrane sheet area 111, as by heat sealing. The membrane sheet area 111 has afold 136, terminating in aflap 137, which is overfolded and bonded to thecover sheet 131. The first waist band adhesive securing means 116 is shown to consist of the requiredlength 138 of membrane sheet area 111, the pressure sensitiveadhesive coating area 139, and the overlying thin, flexible releasepaper sheet area 140. Again the thin, flexible nonextensiblefirst waist band 113, when bonded to the thin, membrane sheet area 111, prevents the membrane sheet area 111 from cold stretching at thediaper end 115.

The cross sectional view through 1l11 of FIG. 9 is further illustrated in FIG. 11, showing the construction of the second waist band adhesive securing means 120. Again, the nonwoven,porous cover sheet 131 coterminates with theabsorbent pad 112, at thepad edge 133. The thin, Flexible, nonextensible,second waist band 118 has a second waist bandshort extension 121, which is integral with 118. Theband 118 is bonded to the fluid impermeable membrane sheet area 111, and also to the membrane fold 136', which has been folded under and sealed, to band 118. The second waist band adhesive securing means consists of the requiredlength 141 of the extension 121', the pressure sensitiveadhesive coating area 142 and the overlying protective layer of releasepaper sheet area 143.

The first waist band adhesive securing means 117 and 117 are fully equivalent in their construction; as securing means 120 and l20 are fully equivalent in their construction.

The first waist band adhesive securing means and the second waist band securing means are disposed. in use, as in FIG. 8, to provide four separate bonded adhesive fasteners. The four bonded fasteners provide adjustable four point suspension on the nonextensible waist bands, which can be adapted to secure the waist bands to the necessary degree of tightness on the babys abdomen. Since low diaper raw material costs are very important in developing a low priced, disposable diaper in wide use, the thickness of the fluid impermeable membrane sheet area is an important raw material cost. A thin, cheaper, fluid impermeable membrane, typically 0.0003 inch thick, can be used with the nonextensible waist bands, instead of the thicker 0.0015 inch membrane sheet area. The adjustable four point suspension is necessary for the active baby learning to stand in a crib and for the baby beginning to walk, for activity results in cold stretching of the thin membrane and loss of any significant waist band control and holding tension in an unimproved disposable diaper. In fact, a four point suspension is necessary for an active baby, crib stander or walker, and two adhesive bonded fasteners are not sufficient to hold a baby diaper on during this activity.

Although the integral waist band fasteners of this invention have been described in conjunction with a pleated diaper of my copending US. patent application, filed as of this date, the integral waist band fasteners invention can be practiced alone and without the pleated diaper invention.

Although the absorbent pad, typically 10 of this disclosure, is shown substantially coextensive in area, with the thin membrane, typically 11, the absorbent pad for entrapping waste fluids can be smaller in area than the membrane. The absorbent pad will be typically centrally disposed along the diaper center line, typically center line 3.

Obviously many modifications in integral diapers can be made in the light of these teachings. It is therefore understood that within the scope of the appended claims, the invention may be practiced otherwisethan as specifically described.

I claim:

1. A process for manufacture of single use, dispos able, integral baby diapers comprising:

a. forming a waist band stock sheeting of the required web width, having two waist band adhesive securing means disposed on one web face, at opposed web width edges of said sheeting;

b. disposing a first waist band stock sheeting supply of the required web width and a second waist band stock sheeting supply of the required web width symetrically parallel, with respect to each aforesaid web width, across the diaper web width of a moving diaper production line;

c. severing a narrow waist band from each of said first waist band stock sheeting supply and said second waist band stock sheeting supply;

d. disposing said narrow bands from each of said first waist band stock sheeting and said second waist band stock sheeting symetrically with respect to said diaper web width and said narrow bands web widths, and in their respective permanent band positions on said diaper web width;

first waist band and a second waist band.

Claims (1)

1. A process for manufacture of single use, disposable, integral baby diapers comprising: a. forming a waist band stock sheeting of the required web width, having two waist band adhesive securing means disposed on one web face, at opposed web width edges of said sheeting; b. disposing a first waist band stock sheeting supply of the required web width and a second waist band stock sheeting supply of the required web width symetrically parallel, with respect to each aforesaid web width, across the diaper web width of a moving diaper production line; c. severing a narrow waist band from each of said first waist band stock sheeting supply and said second waist band stock sheeting supply; d. disposing said narrow bands from each of said first waist band stock sheeting and said second waist band stock sheeting symetrically with respect to said diaper web width and said narrow bands web widths, and in their respective permanent band positions on said diaper web width; e. bonding said narrow bands to said diaper web width, at spaced diaper length intervals; and f. completely severing said diaper web width at said spaced diaper lengths to provide diapers having a first waist band and a second waist band.

Images