US3927673A - Quilted diaper - Google Patents

Quilted diaper Download PDF

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Publication number
US3927673A
US3927673A US496492A US49649274A US3927673A US 3927673 A US3927673 A US 3927673A US 496492 A US496492 A US 496492A US 49649274 A US49649274 A US 49649274A US 3927673 A US3927673 A US 3927673A
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US
United States
Prior art keywords
sheet
pad
diaper
apertures
fluid
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US496492A
Other languages
English (en)
Inventor
Glenn N Taylor
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Colgate Palmolive Co
Original Assignee
Colgate Palmolive Co
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 Colgate Palmolive Co filed Critical Colgate Palmolive Co
Priority to US496492A priority Critical patent/US3927673A/en
Priority to SE7508269A priority patent/SE400699B/xx
Priority to ZA754668A priority patent/ZA754668B/xx
Priority to MX159759A priority patent/MX144519A/es
Priority to AU83330/75A priority patent/AU497380B2/en
Priority to IT50707/75A priority patent/IT1041061B/it
Priority to BR7504866*A priority patent/BR7504866A/pt
Priority to ES1975227814U priority patent/ES227814Y/es
Priority to GB32551/75A priority patent/GB1509229A/en
Priority to DE2535058A priority patent/DE2535058C2/de
Priority to IE1747/75A priority patent/IE41647B1/en
Priority to CA233,034A priority patent/CA1029902A/en
Priority to PH17456A priority patent/PH11726A/en
Priority to CH1034875A priority patent/CH587619A5/xx
Priority to NLAANVRAGE7509514,A priority patent/NL180377C/xx
Priority to DK363075A priority patent/DK149036C/da
Priority to FR7524953A priority patent/FR2330339A1/fr
Priority to JP50098020A priority patent/JPS6042281B2/ja
Priority to AT623875A priority patent/AT352044B/de
Priority to BE159125A priority patent/BE832344A/xx
Application granted granted Critical
Publication of US3927673A publication Critical patent/US3927673A/en
Priority to ES1977226062U priority patent/ES226062Y/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent 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
    • A61F13/531—Absorbent 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 a homogeneous composition through the thickness of the pad
    • A61F13/532—Absorbent 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 a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
    • A61F13/5323—Absorbent 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 a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad having absorbent material located in discrete regions, e.g. pockets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent 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
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/512—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its apertures, e.g. perforations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/51—Absorbent 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
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/513—Topsheet, 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
    • A61F13/51305—Topsheet, 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 having areas of different permeability
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent 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
    • A61F13/534—Absorbent 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
    • A61F13/537—Absorbent 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 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent 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
    • A61F13/539—Absorbent 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 characterised by the connection of the absorbent layers with each other or with the outer layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/56—Supporting or fastening means
    • A61F13/58—Adhesive tab fastener elements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/84—Accessories, not otherwise provided for, for absorbent pads
    • A61F13/8405—Additives, e.g. for odour, disinfectant or pH control
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F2013/15008—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterized by the use
    • A61F2013/15073—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterized by the use as drapes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent 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
    • A61F2013/530131—Absorbent 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 being made in fibre but being not pulp
    • A—HUMAN NECESSITIES
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    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent 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
    • A61F13/534—Absorbent 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
    • A61F13/537—Absorbent 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 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A61F13/53708—Absorbent 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 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction
    • A61F2013/53721—Absorbent 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 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer the layer having a promotional function on liquid propagation in at least one direction with capillary means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent 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
    • A61F13/534—Absorbent 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
    • A61F13/537—Absorbent 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 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
    • A61F2013/53765—Absorbent 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 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterized by its geometry
    • A61F2013/53782—Absorbent 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 characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer characterized by its geometry with holes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent 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
    • A61F13/539—Absorbent 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 characterised by the connection of the absorbent layers with each other or with the outer layers
    • A61F2013/53908—Absorbent 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 characterised by the connection of the absorbent layers with each other or with the outer layers with adhesive
    • A—HUMAN NECESSITIES
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    • A61F13/53—Absorbent 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
    • A61F13/539—Absorbent 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 characterised by the connection of the absorbent layers with each other or with the outer layers
    • A61F2013/5395—Absorbent 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 characterised by the connection of the absorbent layers with each other or with the outer layers with thermoplastic agent, i.e. softened by heat
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    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2555/00—Personal care
    • B32B2555/02—Diapers or napkins

Definitions

  • Aug. 12, 1974 Improved absorbent article for diapers and the like comprising an outer backing sheet of a water impervious or repellant material, an optional inner top sheet having fluid passing properties, an absorbent pad therebetween, and a second water impervious or re- 128/287 pellant interlayer sheet disposed between the top sheet 13/16 and the absorbent pad.
  • the interlayer has a plurality 128/132 155456 of spaced small holes therethrough.
  • the interlayer 286481290 296 and/or inner sheet are bonded directly to the outer sheet through the large holes in the absorbent pad.
  • the outer margins of the layers may be sealed together.
  • the construction shows improved penetration UNITED STATES PATENTS of fluid, substantially one-way transmission through the interlayer, and permits excellent spreading by the Assignee: Colgate-Palmolive Company, New
  • the bonding through the pad holes preholes provide added wicking surface for improved rate of absorption and retention.
  • the inner sheet is preferably a non-woven material that minimizes skin contact with the plastic interlayer, providing a smooth hand 0.6000600 o nevuaz ao eu k oua I d 4 006 0000 0 900000. eooa ov Bowles.................., across,. together
  • QUILTED DIAPER FIELD This application relates to improvements in fluid absorbent and retentive articles, including diapers, catamenial pads, fluid absorbent bed sheets, surgical or medicinal absorbent pads or drapes, surgical or medicinal dressing pads or bandages, and the like. More par ticularly the inventions herein relate to improved diapers having apertured absorbent pads retained in combination with a plurality of sheets in a manner that provides improved performance.
  • pulverized wood pulp pads tend to have low wet strength integrity resulting in pulling apart and balling when contacted by fluid. Unless they have a special sheet, called a wadding sheet. they also disintegrate and shift in position when disposed between plastic sheets. Typically, they must be glued across one entire surface to retain them in position, with consequent loss of absorbency, use of large quantities of adhesive, and extra layers of material. The wicking action of the pad is reduced and the spreading action of backing sheets are also hindered.
  • lt is another object to provide improved absorbent articles which are simpler and cheaper to make than prior types of absorbent systems.
  • FIG. 1 shows in plan view a diaper system illustrating one embodiment of the instant invention, parts of which are broken away to show the several layers of the system;
  • FIG. 2 is a section view along line 2-2 of FIG. 1;
  • FlG. 3 shows in perspective the embodiment of FIG. 1 folded in a box pleat form ready for use
  • FIG. 4 is a fragmentary sectional view of another embodiment of the diaper of the present invention.
  • an absorbent article useful as a diaper in accord with the inventions comprises an outer or backing sheet and an apertured interlayer sheet having disposed therebetween an apertured absorbent pad, and, optionally, an inner or top sheet overlying the interlayer.
  • the top and/or interlayer sheets serve as one or more cover sheets for the absorbent pad.
  • the apertures of the pad are relatively large and permit direct bonding of the interlayer and/or inner sheet to the outerlayer therethrough without bonding to the pad. This retains the pad in the use position without need for a special wadding type retainer sheet, which would normally define the front surface of the pad, and without glue to position and retain the pad in place.
  • the apertures also provide additional wicking surface for rapid absorption of fluid passing through the interlayer and/or inner sheets.
  • the interlayer has a plurality of smaller apertures which function to pass fluid one way from the inner sheet to the pad.
  • the holes are preferably restricted in area to less than the areal extent of the pad to reduce the tendency for back-wicking from the pad through the inner sheet.
  • the outer sheet and interlayer are preferably of a thermoplastic material to keep the outer surface of the diaper dry, to promote fluid spreading, and permit bonding without need for adhesives.
  • the marginal edges of the sheets are preferably bonded to prevent fluid escape.
  • the inner sheet is preferably a non-woven fibrous material that minimizes direct skin contact with plastic and has a suitable feel or hand.”
  • a portion of the pad may be removed in generally arcuate areas disposed along the mid-points of two opposed sides or in the diaper crotch region to provide for a better leg fit.
  • the diaper conveniently is folded in a box pleat with one or more adherent tabs provided for removably retaining the diaper in a use position on the child.
  • a diaper of this invention shows improved rate of fluid absorbency, improved penetration, excel lent one way fluid transmission through the interlayer, excellent spreading by the backing sheet and improved wicking into the pad and fluid retention.
  • the diaper is simple to construct, permitting omission of a wadding sheet, yet having improved pad location and retention without balling in use.
  • absorbent article 1 such as a disposable diaper, comprises an outer backing sheet 2 and an optional inner sheet 3 having disposed therebetween an absorbent pad 4, and an interlayer sheet 5.
  • These sheets are shown for purposes of illustration as generally rectangular, each having a pair of lateral side edges 6, 7 and a pair of end edges 8, 9 connecting the side edges 6, 7, the edges being substantially in registry.
  • other shapes depending on use and preference, such as square, triangular, polygonal, arcuate or combinations thereof may be employed for the sheets.
  • the outer backing sheet is of a fluid impervious (preferred) or resistant material, typically thermoplastic or thermosetting plastic, such as a polyolefin (polyethylene, polypropylene), a polystyrene, a polyvinyl plastic, such as polyvinylchloride, and the like. Mixed polymers, laminates, coand ter-polymers may also be used.
  • This sheet may be made by a continuous extrusion, casting, or other operation, and is preferably a homogenous web. Where the desired fluid imperviousness is achievable, the sheet may be woven, non-woven, or felted.
  • Sheet thickness may vary and typically is in the range of from about (H to 3.0 mils, with lighter thickness on the order of 1.0 mils being used for diapering, with heavier sheets being used for heavy duty applications such as surgical pads or draping.
  • the interlayer is preferably of the same material, impervious properties and gauge.
  • the sheets, particularly the outer backing sheet and interlayer sheet may be differently colored, for coding purposes in manufacture, to insure proper orientation in use, for sales appeal, and aesthetic reasons.
  • the outer backing sheet may be white while the interlayer is blue; the semi-translucent inner sheet takes on the blue color of the interlayer and the absorbent article thus has differently color-coded sides that can be referred to in manufacturing and use instructions. Other colors, patterns and designs may be used.
  • the absorbent pad may be any suitable absorbent material, such as pulverized wood pulp, cellulose wadding, or any woven, non-woven or felted, natural or synthetic, fibrous or non-fibrous (such as open or closed cell-sponge of foam-type) material.
  • the pad as best shown in FIGS. 1 and 2, has end margins I0, II, and side margins 12, I3 when it is generally rectangular. These margins are generally spaced inwardly of margins 6, 7, 8 and 9, as shown. As noted above, the pad may have a variety of shapes and sizes.
  • One diaper configuration is shown in FIGS. I and 3, wherein arcuate portions l4, are removed from side margins l2, 13 in registry with the leg positions. As best shown in FIG. 3, this prevents excess bulk in the babys crotch area, provides a better fit, and permits collection and spreading of fluid without loss to the exterior by means of the outer backing sheet, interlayer, and optional inner layer, which are not removed at that area.
  • Pad 4 also has a plurality of relatively large apertures I6 spaced inwardly from the outer margins l0, l1, 12, I3 of the pad. These apertures permit direct bonding of the interlayer 5 (and optionally inner sheet 3) to the outer backing sheet 2 in zones 17, in the manner shown best in the upper half of FIG. 2.
  • the bonding may be by any suitable means, heat sealing (preferred), solvent sealing, adhesive and the like.
  • the bonding zones occupy only a portion of the entire area defined by the aperture size [6.
  • the bonds effectively retain the pad between the outer backing sheet 2 and interlayer S in proper use position, without adhesive being applied to the pad and present a generally quilted effect.
  • the pad does not shift in position during transport or use, and does not pill, wad or ball upon contact with fluid.
  • the lower portion of FIG. 2 shows an alternative embodiment wherein the inner sheet is not bonded to the interlayer and/or backing sheet in zone 17.
  • the pad apertures have edges I8 which provide additional wicking surfaces for rapid absorption of fluid by the pad. Absorption by exposed fibrous ends, such as presented by edges 18, is generally faster than through the inner surface 19 or the pad.
  • the inner surface 20 of the outer backing sheet 2 serves to spread fluid passing through the optional inner sheet 3, and the interlayer 5 into contact with wicking edges l0, l1, l2, l3 and I8 facilitating absorption and into contact with the back surface of the pad 4 intermediate the pad apertures 16. Since no glue is requred to retain the pad in place, better fluid spreading is obtained. Between interlayer 5 and outer backing sheet 2 in the region of the apertures I6 are defined generally annular spaces 21, seen best in FIG. 2. These spaces serve as reserviors for fluid passing rapidly through apertures 22 in the interlayer 5. Thus, the penetration rate limiting factor is the speed of transfer through the interlayer apertures 22, rather than the absolute rate of absorption through the pad surface I9.
  • Fluid does not tend to puddle on the inner surface 23 of the interlayer 5 while awaiting the relatively slow sorption through the surface of the pad. Rather, the fluid can run quickly through apertures 22 into reservoirs 21 and then wick through edges 18. Urine contact on skin is minimized.
  • the interlayer apertures 22 are generally smaller and more numerous than the pad apertures 16.
  • apertures 16 in the pad may be 34 (1.9 cm) in diameter, while apertures 22 may be Vs (0.3 cm) in diameter.
  • This provides a flow gradient effect permitting a large number of access ports for fluid to pad 4 or reservoirs 21, and minimizing back flow to the surface 23 and contact with skin.
  • the larger number of apertures 22 statistically insures registry with the apertures l6 and annular spaces 21.
  • the small apertures 22 are limited in lateral extent (both horizontally and vertically as shown in FIG.
  • the fluid impervious interlayer and backing sheets 5 and 2 provide a seal to prevent leakage at the side and end edges of the diaper.
  • the inner sheet 3 is optional but preferred to minimize skin contact with the plastic of the interlayer S, and provide a smooth feel or hand.
  • the inner sheet is preferably of a woven or non-woven, fibrous, natural (e.g., cellulosic) or synthetic material. It may be a paper-process type of non-woven material, felted, or ran domly intertangled to form a self-supporting sheet. The sheet also helps provide fluid transfer to the interlayer and skin protection.
  • the inner sheet may be treated with medicaments, chemical agents, deodorants, emollients, powders (e.g., baby powder), surfactants, wetting agents, salves, perfumes, bactericides,
  • FIG. 3 shows the pad of HO. 1 folded into a conventional box pleat configuration, having adhesive faced securing tabs 24, 24 with release sheets 25, 25' thereover.
  • adhesive faced securing tabs 24, 24 with release sheets 25, 25' thereover.
  • the baby is laid on the diaper, front end A brought up, the release sheets 25, 25' are removed, and the tabs 24, 24' are secured to the outer surface 26 of backing sheet 2.
  • adhesive 27, 27' may be applied to spots C and D of the inner sheet (see FIG. 1) and the pleats 28, 29 formed and retained in place by the folds and adhesive.
  • the diaper may be folded along fold line F-F'.
  • the relieved areas l4, l5 prevent bulking along the fold line, and permit better diaper fit.
  • FIG. 4 Another embodiment of the present invention is illustrated in FIG. 4.
  • the interlayer is omitted and the inner top sheet 3 is secured directly to the backing sheet 2 through the pad apertures 16.
  • the bonded top and backing sheets prevent shifting of the absorbent pad, as previously described in connection with the diaper of FIGS. l3.
  • the quilted diaper of the present invention has a plurality of raised and recessed surface portions 32 and 34, respectively, defining an undulating front and rear surface of the diaper which is aesthetically pleasing to the eye.
  • the tape strips are secured in place, the backing sheet is pulled somewhat taut, tending to accenturate the depressed front surface portions and the undulating front surface of the diaper.
  • the diaper presents a discontinuous front surface with the raised portions contacting the infants skin, and the depressed portions providing air pockets promoting the circulation of air within the placed diaper.
  • the discontinuous front surface minimizes the wet front surface area which contact the infant.
  • the discontinuous front surface also minimizes clinging of the top sheet against the infants skin, which otherwise might be present in a continuous front surface.
  • An absorbent article for use as a diaper or the like comprising in operative combination:
  • said absorbent pad having a plurality of apertures therein, said apertures being larger than the apertures in said second sheet,
  • said first and said second sheets being secured to each other in registry with said pad apertures in at least a part of the area defined by said pad apertures, and
  • An absorbent article as in claim 5 which includes a third sheet of fibrous material disposed adjacent to and outwardly from said second sheet, said third sheet being secured to at least one of said first and said second sheets.
  • An absorbent article as in claim 1 which includes a third sheet of fibrous material disposed adjacent to and outwardly from said second sheet, said third sheet being secured to at least one of said first and said second sheets.
  • An absorbent article as in claim 1 including a plurality of longitudinal folds defining a box-pleat configuration of the article adapted for use as a diaper.
  • a disposable diaper comprising: a fluid impervious backing sheet, a fluid transmitting cover sheet, and an absorbent pad intermediate said cover and backing sheets, said pad having a plurality of apertures extending therethrough, and said cover sheet being secured to said backing sheet through a plurality of said pad apertures the area of securing being less than the area of the apertures in said pad.
  • said pad includes a pair of side edges, and a pair of cut-out portions along said side edges in the crotch region of the diaper.
  • said cover sheet comprises a fluid impervious sheet having a plu rality of apertures extending through said sheet and overlying said pad.
  • the diaper as in claim 16 including a fluid pervious top sheet overlying said fluid impervious cover sheet.
  • the diaper as in claim 12 including a plurality of longitudinally extending folds defining a box-pleat configuration of the diaper.
  • a disposable diaper comprising:
  • said pad having marginal edges and a plurality of apertures extending through the pad generally in a first (the crotch) region of the diaper. said first region being adapted for placement adjacent the crotch area of an infant;
  • said interlayer having a plurality of apertures of smaller size than the apertures in said pad;
  • interlayer apertures being spaced from the diaper side and end edges and the marginal edges of the pad throughout a substantial areal extent of the pad;
  • top and backing sheets and said interlayer being secured together along the side and end edges of the diaper; and k. a plurality of longitudinally extending folds defining a box-pleat configuration of the diaper.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
US496492A 1974-08-12 1974-08-12 Quilted diaper Expired - Lifetime US3927673A (en)

Priority Applications (21)

Application Number Priority Date Filing Date Title
US496492A US3927673A (en) 1974-08-12 1974-08-12 Quilted diaper
SE7508269A SE400699B (sv) 1974-08-12 1975-07-21 Absorberande produkt sasom blojor och liknande
ZA754668A ZA754668B (en) 1974-08-12 1975-07-21 Quilted diaper
MX159759A MX144519A (es) 1974-08-12 1975-07-22 Mejoras en un panal desechable
AU83330/75A AU497380B2 (en) 1974-08-12 1975-07-23 Quilted diaper
IT50707/75A IT1041061B (it) 1974-08-12 1975-07-29 Perfezionamento negli assorbenti igienici e simili
BR7504866*A BR7504866A (pt) 1974-08-12 1975-07-30 Artigo absorvente aperfeicoado para uso como fralda ou semelhante,e fralda descartavel
GB32551/75A GB1509229A (en) 1974-08-12 1975-08-04 Absorbent articles
ES1975227814U ES227814Y (es) 1974-08-12 1975-08-04 Un articulo absorbente para uso como panal o similar.
IE1747/75A IE41647B1 (en) 1974-08-12 1975-08-06 Absorbent articles
DE2535058A DE2535058C2 (de) 1974-08-12 1975-08-06 Wegwerfwindel
CA233,034A CA1029902A (en) 1974-08-12 1975-08-07 Quilted diaper
PH17456A PH11726A (en) 1974-08-12 1975-08-07 Quilted diaper
CH1034875A CH587619A5 (de) 1974-08-12 1975-08-07
NLAANVRAGE7509514,A NL180377C (nl) 1974-08-12 1975-08-08 Wegwerpluier met zich door het absorberend kussen uitstrekkende openingen.
DK363075A DK149036C (da) 1974-08-12 1975-08-11 Absorberende genstand, fortrinsvis ble
FR7524953A FR2330339A1 (fr) 1974-08-12 1975-08-11 Article absorbant utilisable notamment comme couche
JP50098020A JPS6042281B2 (ja) 1974-08-12 1975-08-12 おむつその他の吸収性物品
AT623875A AT352044B (de) 1974-08-12 1975-08-12 Saugfaehige vorlage
BE159125A BE832344A (fr) 1974-08-12 1975-08-12 Article absorbant utilisable notamment comme couche
ES1977226062U ES226062Y (es) 1974-08-12 1977-01-31 Un panal desechable.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US496492A US3927673A (en) 1974-08-12 1974-08-12 Quilted diaper

Publications (1)

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US3927673A true US3927673A (en) 1975-12-23

Family

ID=23972883

Family Applications (1)

Application Number Title Priority Date Filing Date
US496492A Expired - Lifetime US3927673A (en) 1974-08-12 1974-08-12 Quilted diaper

Country Status (20)

Country Link
US (1) US3927673A (de)
JP (1) JPS6042281B2 (de)
AT (1) AT352044B (de)
AU (1) AU497380B2 (de)
BE (1) BE832344A (de)
BR (1) BR7504866A (de)
CA (1) CA1029902A (de)
CH (1) CH587619A5 (de)
DE (1) DE2535058C2 (de)
DK (1) DK149036C (de)
ES (2) ES227814Y (de)
FR (1) FR2330339A1 (de)
GB (1) GB1509229A (de)
IE (1) IE41647B1 (de)
IT (1) IT1041061B (de)
MX (1) MX144519A (de)
NL (1) NL180377C (de)
PH (1) PH11726A (de)
SE (1) SE400699B (de)
ZA (1) ZA754668B (de)

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FR2330339A1 (fr) 1977-06-03
AT352044B (de) 1979-08-27
GB1509229A (en) 1978-05-04
DE2535058A1 (de) 1976-02-26
SE400699B (sv) 1978-04-10
ES226062Y (es) 1977-12-01
ES227814U (es) 1977-08-16
MX144519A (es) 1981-10-23
NL180377C (nl) 1987-02-16
JPS5144055A (en) 1976-04-15
AU497380B2 (en) 1978-12-14
CA1029902A (en) 1978-04-25
AU8333075A (en) 1977-01-27
DE2535058C2 (de) 1985-09-19
ATA623875A (de) 1979-02-15
BR7504866A (pt) 1976-08-03
PH11726A (en) 1978-05-30
NL7509514A (nl) 1976-02-16
IT1041061B (it) 1980-01-10
DK363075A (da) 1976-02-13
JPS6042281B2 (ja) 1985-09-21
DK149036C (da) 1986-05-26
FR2330339B1 (de) 1980-01-25
IE41647B1 (en) 1980-02-27
ES226062U (es) 1977-08-01
IE41647L (en) 1976-02-12
ES227814Y (es) 1977-12-16
ZA754668B (en) 1977-02-23
CH587619A5 (de) 1977-05-13
SE7508269L (sv) 1976-02-13
DK149036B (da) 1985-12-30
BE832344A (fr) 1975-12-01
NL180377B (nl) 1986-09-16

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