US3814100A - Disposable diaper - Google Patents
Disposable diaper Download PDFInfo
- Publication number
- US3814100A US3814100A US00230644A US23064472A US3814100A US 3814100 A US3814100 A US 3814100A US 00230644 A US00230644 A US 00230644A US 23064472 A US23064472 A US 23064472A US 3814100 A US3814100 A US 3814100A
- Authority
- US
- United States
- Prior art keywords
- pad
- folded
- side flaps
- channel
- web
- 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
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Classifications
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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
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15617—Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres
- A61F13/15634—Making fibrous pads between sheets or webs
-
- 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
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
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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
- A61F13/534—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
- A61F13/53409—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 having a folded core
- A61F13/53418—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 having a folded core having a C-folded cross-section
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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
- A61F13/534—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
-
- 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
- A61F13/53409—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 having a folded core
-
- 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
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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
- A61F13/56—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
- A61F13/15577—Apparatus or processes for manufacturing
- A61F2013/15821—Apparatus or processes for manufacturing characterized by the apparatus for manufacturing
-
- 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
- A61F13/45—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 shape
- A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
- A61F2013/49068—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the shape of the outline
- A61F2013/49076—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the shape of the outline as "I"-shaped
-
- 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
- A61F13/514—Backsheet, i.e. the impermeable cover or layer furthest from the skin
- A61F13/51401—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material
- A61F2013/51409—Backsheet, i.e. the impermeable cover or layer furthest from the skin characterised by the material being a film
-
- 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
- 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
- A61F2013/53445—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 from several sheets
-
- 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
- A61F2013/53786—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 folds
-
- 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
- A61F2013/586—Adhesive tab fastener elements on lateral flaps
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/726—Permeability to liquids, absorption
-
- 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
- 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
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2555/00—Personal care
- B32B2555/02—Diapers or napkins
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1007—Running or continuous length work
- Y10T156/1008—Longitudinal bending
- Y10T156/101—Prior to or during assembly with additional lamina
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1007—Running or continuous length work
- Y10T156/1008—Longitudinal bending
- Y10T156/1011—Overedge bending or overedge folding
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1007—Running or continuous length work
- Y10T156/1015—Folding
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1028—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina by bending, drawing or stretch forming sheet to assume shape of configured lamina while in contact therewith
- Y10T156/103—Encasing or enveloping the configured lamina
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1051—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina by folding
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
- Y10T156/1056—Perforating lamina
- Y10T156/1057—Subsequent to assembly of laminae
Definitions
- AESTRACT A disposable diaper having a C-foldeci pad within a wrapping envelope. the envelope being substantially wider than the C-folded pad to provide side flaps adapted to initially underlie the pad and be selectively folded outwardly for securing the pad in place, the C fold providing a lined channel on one side of the pad which encourages more even, rapid, and complete dispersion of body fluid.
- FIG. I is an elevational view of the diaper just prior to application on a baby
- FIG. 2 is a side elevational view
- FIG. 3 is a cross-sectional view seen along the line 3-3 of FIG. 1;
- FIG. 4 is a perspective view of the diaper configuration in the form it assumes when applied on a baby
- FIG. 5 is a side elevational view, partially schematic, of apparatus employable in the practice of the inventive method.
- FIGS. 6-9 are fragmentary enlarged cross-sectional views of the diaper at various stages of its development corresponding to the sight lines 6+6, 7--7, 8-8, and 9-9, respectively, as applied to FIG. 5.
- the numeral 10 designates generally a C folded pad of fluff or like soft absorbent material. It will be seen that the pad is achieved by folding, as at I l and 12 (still referring to FIG. 3), to develop a C-shape in cross section wherein there is a central channel 13.
- the channel 13 is essentially T-shaped and is defined by the inner pad portions 14 and 15 in combination with the outer pad portion 16.
- the transverse spacing between the inner pad portions 13 and I4 is normally of the order of one inch to one and one/quarter inch, which provides more comfort for a male baby. It also provides a receptacle for the solids and makes the pad more form-fitting in the crotch.
- the pad I0 When folded as just indicated, the pad I0 is generally rectangular in plan, with the longer dimension being parallel to the length of the channel I3.
- the pad fluff or like soft, moistureabsorbent material is completely wrapped or encased in a wadding web 17, also of moisture-absorbent material.
- This web 17 is likewise disposed in a C shape in cross section, and can be advantageously provided in the form of the carrier sheet to be described hereinafter upon which the fluff is deposited incident to manufacture of the diaper.
- the wadding web 17 may be introduced after the pad is formed. In either case it is wrapped around the pad before the C-folding takes place.
- the wadding web 17 is seen to consist of a single sheet with an overlap, as at 18, within the chan nel 13. In this fashion there is an extra dispersion sheet within the channel 13 which improves the absorbing qualities of the pad. Further, this facilitates the manufacturing operation to be described hereinafter.
- the pad I0 complete with wadding web 17 is posi tioned within an enveloping wrap generally designated 19 and which is seen to consist of two generally rectangular, coextensive sheets arranged on opposite sides of the pad 10.
- This sheet 21 is constructed of substantially moisture-impervious material such as polyethylene or like material of proper strength and moisture-repelling qualities.
- the moisture-pervious sheet 20 and moisture-impervious sheet 21 are perimetrically united, as by lines of adhesive at 22 and 23, along the longitudinal side edges, and, at 24 and 25, at the extreme transverse edges thereby developing an envelope. It will be noted that the length of the pad 10 is less than the length of the envelope 19, thereby providing reduced thickness ends as at 26 and 27 (see FIG. 2).
- the sheets 20 and 21 are united along transverse lines, as at 28 and 29, which immobilize the pad I0 in place. Still further, the sheets 20 and 21 are united along the longitudinal edges of the Tl-folded pad 10, as at 30 and 31, to further immobilize the pad and develop side flaps which are generally designated 32 and 33. V
- the side flaps 32 and 33 are folded under the diaper" this in the sense that the channel 13 is positioned uppermost when the diaper is laid on a changing table incident to applying the same on a baby.
- the side flaps are seen to be reverse-folded, as at 34 and 35, to develop a gusset arrangement.
- the inventive pad can be 13 inches long by inches wide. This results in a saving of 40 percent of fluff and wadding with an increase of the effectiveness in dispersl of solids and liquids.
- FIG. 5 Apparatus for producing the inventive diaper is seen in FIG. 5.
- an unwind mechanism 41 which carries a parent roll of wadding web material providing the previously mentioned wadding web 17.
- This is conducted over various idler rolls to an overwrap folding unit 42.
- the configuration seen in FIG. 6 is developed, which, it will be appreciated, is the blank employed to develop the C-folded pad 10.
- a fluff unit 43 is provided whichdisintegrates a cellulosic web 44 provided from a parent roll on an unwind 45.
- the fluff web 46 also enters the overwrap fold mechanism and is enveloped or overwrapped by the wadding web 17.
- the composite web is advanced through the action of the top and bottom conveyor belts generally designated 47, after which the web configuration or blank seen in FIG. 6 is C-folded by means of the folding device 48 into the configuration seen in FIG. 7.
- the continuous C-folded pad is advanced through the nip of a pair of rolls generally designated 49 which serve to compress the continuous web at spaced-apart transverse areas corresponding to the ends of the pads 10 ultimately developed.
- the pads are developed by virtue of passing through a pad cutoff generally designated 50, wherein one roll is equipped with knives and the other roll equipped with anvils or recesses accommodating the knives so as to sever the C-folded web transversely.
- the compressed portions of the web blank can be seen schematically at 51 between the units 49 and 50.
- the pads are supported on a bottom powered conveyor 52 and are advanced by the cooperation of the conveyor 52 with a top conveyor (also equipped with a belt) as at 53.
- the conveyors 52 and 53 operate at a speed faster than the conveyor 47 (constituting a speed-up conveyor) so as to develop a larger spacing 51a between pads 10 and thus accommodate the greater length webs 20 and 21 (see FIGS. 2 and 3).
- An unwind for the moisture impervious web 21 is provided at 54, and a similar unwind 55 is provided for the moisture pervious web 20.
- the webs 20 and 21 are led through a nip defined by a pair of rolls 56 so as to envelop the pads 10.
- the side seal adhesive for the seams 22, 23, and 30, 31 is applied by nozzles as at 57.
- transverse lines of adhesive are laid down by a glue printer generally designated 58, which results in the seams 24, 25 and 28, 29.
- the composite web After leaving the nip defined by the rolls 56, the composite web passes through pull conveyor belts generally designated 59 and which have positioned therein end seal pressure wheels as at 60. Just prior to encountering the pull conveyors 59, the web configuration is as seen in F K]. 8.
- the individual diapers are developed by means of a diaper cutoff mechanism generally dcsignated 67, after which the individual diapers are advanced through pull belt conveyors generally designated 68 into the nip defined by a pair of folding rolls generally designated 69. From the folding rolls 69, the diapers are automatically stacked in predetermined count units on the leaving conveyor generally designated 70.
- a disposable diaper comprising a generally rectangular pad of soft. moisture-absorbent material, a wad ding web of moisture-absorbent material surrounding the pad, the pad and wadding web being folded into a C-shape along a pair of spaced apart lines to provide an outer pad portion and a pair of inner pad portions superposed on the outer pad portion to form an elongated channel extending parallel to said spaced-apart lines, the inner pad portions and the outer pad portion being of approximately the same thickness, each inner pad portion being separated from the confronting part of the outer pad portion by a double thickness of said wadding web, an enveloping wrap encircling the C folded pad and wadding web and extending across said channel, said enveloping wrap providing side flaps adapted to be unfolded in the direction transverse to the length of said channel and thereafter united at the respective ends thereof and about a baby's waist.
- said enveloping wrap includes a substantially liquid-pervious sheet adjacentsaid inner pad portions and having a width exceeding the width of said C-folded pad, said enveloping wrap also including a substantially liquid-impervious sheet adjacent said outer pad portion and generally coextensive with said liquid-pervious sheet, said sheets being perimetrically united to form said enveloping wrap, said sheets being united along the edges of said C-folded pad to provide side flaps.
- each of said side flaps is unitedin the portion thereof between said reverse fold line and the edge of said C-folded pad to a portion of said liquid-impervious sheet, the last mentioned union being located approximately midway of the length of said diaper whereby the ends of said side flaps are free but the intermediate portions are restricted during unfolding.
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Vascular Medicine (AREA)
- Epidemiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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Abstract
A disposable diaper having a C-folded pad within a wrapping envelope, the envelope being substantially wider than the Cfolded pad to provide side flaps adapted to initially underlie the pad and be selectively folded outwardly for securing the pad in place, the C-fold providing a lined channel on one side of the pad which encourages more even, rapid, and complete dispersion of body fluid.
Description
United States Patent 1 l 3,814,100 Nystrand et al. 1 June 4, 1974 i 1 DISPOSABLE DIAPER 3.364.931 1/1968 Hirsch l29/290R W51 Daniel M Brian 111283115 Zllfiii ilie'ififffijij...,iijiiiiiiijiiiiiii 1321523 Mclntosh, both of Green Bay, Wis.
Primary Examiner-Charles F. Rosenbaum Attorney, Agent, or Firm-Dawson. Tilton, Fallon 5S4 Lungmus [57] AESTRACT A disposable diaper having a C-foldeci pad within a wrapping envelope. the envelope being substantially wider than the C-folded pad to provide side flaps adapted to initially underlie the pad and be selectively folded outwardly for securing the pad in place, the C fold providing a lined channel on one side of the pad which encourages more even, rapid, and complete dispersion of body fluid.
8 Claims, 9 Drawing Figures {73] Assignee: Paper Converting Machine Co., Inc.,
Green Bay, Wis.
[22] Filed: Mar. 1, 1972 [21] Appl. No.: 230,644
Related U.S. Application Data [63] Continuation-impart of Ser. No. 32.560. April 28.
. l970. Pat. No, 3.667.468.
[52] U.S. Cl. 128/287 lSl] int. Cl A411) 13/02 [58] Field of Search l28/284, 286. 287, 290, 128/296 [56] References Cited UNITED STATES PATENTS 3.065.75l ll/l962 Gohho. Sr. et Zll. 128/287 PATENTEDJUH 4 1914 SHEET 1 UF 3 FIGZ l|llllllll lllll|ullllllllllullllu lllllllllllv'lllllllll PATENTEDJBH 4 m4 SHEU 2 0F 3 FIG.4
DISPOSABLE DIAPER This application is a continuation-in-part of our copending application Ser. No. 32.560, filed Apr. 28, 1970, now Pat. No. 3,667,468.
BACKGROUND AND SUMMARY OF INVENTION DETAILED DESCRIPTION OF THE INVENTION The invention is described in conjunction with the accompanying drawings, in which:
FIG. I is an elevational view of the diaper just prior to application on a baby;
FIG. 2 is a side elevational view;
FIG. 3 is a cross-sectional view seen along the line 3-3 of FIG. 1;
FIG. 4 is a perspective view of the diaper configuration in the form it assumes when applied on a baby",
FIG. 5 is a side elevational view, partially schematic, of apparatus employable in the practice of the inventive method; and
FIGS. 6-9 are fragmentary enlarged cross-sectional views of the diaper at various stages of its development corresponding to the sight lines 6+6, 7--7, 8-8, and 9-9, respectively, as applied to FIG. 5.
In the illustration given, and with particular reference to FIG. 3, the numeral 10 designates generally a C folded pad of fluff or like soft absorbent material. It will be seen that the pad is achieved by folding, as at I l and 12 (still referring to FIG. 3), to develop a C-shape in cross section wherein there is a central channel 13. The channel 13 is essentially T-shaped and is defined by the inner pad portions 14 and 15 in combination with the outer pad portion 16. The transverse spacing between the inner pad portions 13 and I4 is normally of the order of one inch to one and one/quarter inch, which provides more comfort for a male baby. It also provides a receptacle for the solids and makes the pad more form-fitting in the crotch. When folded as just indicated, the pad I0 is generally rectangular in plan, with the longer dimension being parallel to the length of the channel I3.
Advantageously the pad fluff or like soft, moistureabsorbent material is completely wrapped or encased in a wadding web 17, also of moisture-absorbent material. This web 17 is likewise disposed in a C shape in cross section, and can be advantageously provided in the form of the carrier sheet to be described hereinafter upon which the fluff is deposited incident to manufacture of the diaper. Alternatively, the wadding web 17 may be introduced after the pad is formed. In either case it is wrapped around the pad before the C-folding takes place. The wadding web 17 is seen to consist of a single sheet with an overlap, as at 18, within the chan nel 13. In this fashion there is an extra dispersion sheet within the channel 13 which improves the absorbing qualities of the pad. Further, this facilitates the manufacturing operation to be described hereinafter.
The pad I0 complete with wadding web 17 is posi tioned within an enveloping wrap generally designated 19 and which is seen to consist of two generally rectangular, coextensive sheets arranged on opposite sides of the pad 10. Adjacent the inner pad portions 13 and 14, i.e., on the side of the diaper facing the baby, we pro vide a substantially moisture-pervious sheet 20 which advantageously may be constructed of non-woven or like material that has the absorbing qualities and wet strength needed as well as being comfortable for the baby. Adjacent the other side of the pad I0, i.e., adjacent the outer pad portion I6, we provide a second sheet 21. This sheet 21 is constructed of substantially moisture-impervious material such as polyethylene or like material of proper strength and moisture-repelling qualities. The moisture-pervious sheet 20 and moisture-impervious sheet 21 are perimetrically united, as by lines of adhesive at 22 and 23, along the longitudinal side edges, and, at 24 and 25, at the extreme transverse edges thereby developing an envelope. It will be noted that the length of the pad 10 is less than the length of the envelope 19, thereby providing reduced thickness ends as at 26 and 27 (see FIG. 2).
Additionally, the sheets 20 and 21 are united along transverse lines, as at 28 and 29, which immobilize the pad I0 in place. Still further, the sheets 20 and 21 are united along the longitudinal edges of the Tl-folded pad 10, as at 30 and 31, to further immobilize the pad and develop side flaps which are generally designated 32 and 33. V
Advantageously, the side flaps 32 and 33 are folded under the diaper" this in the sense that the channel 13 is positioned uppermost when the diaper is laid on a changing table incident to applying the same on a baby. In the illustration given, the side flaps are seen to be reverse-folded, as at 34 and 35, to develop a gusset arrangement.
To further assist in the development of anadvantageous diaper configuration of the type depicted in FIG. 4 we povide additional spots of adhesive as at 36 and 37, these being between the reverse fold lines 34 and 35 and the associated edges of the C-folded pad 10, and are effective to join the side flaps 32 and 33 centrally longitudinally to the moisture-impervious sheet 23. This prevents the gussets from being completely pulled out round the leg portion of the baby. and insures that the pad is held snugly against the baby.
From the foregoing it will be seen that nothing but the upper sheet 20 (viz., the non-woven material) touches the skin of the baby. We also provide securing tabs 38 and 39 at one end of each of the side flaps 32 and 33, the tabs being equipped with adhesive which is temporarily covered by means of release strips 40. Thus, when the pleats or folds in the side flaps 32 and 33 are drawn from the bottom of the pad (at the ends thereof) and secured around the babys waist, they tend to snug up the pad against the baby. Leakage around the legs is therefore minimized.
Further, there is far less fluff and wadding needed because of the excellent dispersing qualities of the C-folci, and the fact that the pad itself is relatively small. instead of 2,000 pounds per hour of fluff production and forming for large, overnight diapers, 1,200 pourais is a more realistic figure. For example, instead of a 36 inches long by 12 inches wide fluff pad, the inventive pad can be 13 inches long by inches wide. This results in a saving of 40 percent of fluff and wadding with an increase of the effectiveness in dispersl of solids and liquids.
Apparatus for producing the inventive diaper is seen in FIG. 5. At the extreme left-hand portion of FIG. we provide an unwind mechanism 41 which carries a parent roll of wadding web material providing the previously mentioned wadding web 17. This is conducted over various idler rolls to an overwrap folding unit 42. At this point, the configuration seen in FIG. 6 is developed, which, it will be appreciated, is the blank employed to develop the C-folded pad 10. For that purpose. a fluff unit 43 is provided whichdisintegrates a cellulosic web 44 provided from a parent roll on an unwind 45. The fluff web 46 also enters the overwrap fold mechanism and is enveloped or overwrapped by the wadding web 17. The composite web is advanced through the action of the top and bottom conveyor belts generally designated 47, after which the web configuration or blank seen in FIG. 6 is C-folded by means of the folding device 48 into the configuration seen in FIG. 7.
The continuous C-folded pad is advanced through the nip of a pair of rolls generally designated 49 which serve to compress the continuous web at spaced-apart transverse areas corresponding to the ends of the pads 10 ultimately developed. The pads are developed by virtue of passing through a pad cutoff generally designated 50, wherein one roll is equipped with knives and the other roll equipped with anvils or recesses accommodating the knives so as to sever the C-folded web transversely.
The compressed portions of the web blank can be seen schematically at 51 between the units 49 and 50.
After the operation of the pad cutoff 50 to achieve discrete length pads 10, the pads are supported on a bottom powered conveyor 52 and are advanced by the cooperation of the conveyor 52 with a top conveyor (also equipped with a belt) as at 53. The conveyors 52 and 53 operate at a speed faster than the conveyor 47 (constituting a speed-up conveyor) so as to develop a larger spacing 51a between pads 10 and thus accommodate the greater length webs 20 and 21 (see FIGS. 2 and 3).
An unwind for the moisture impervious web 21 is provided at 54, and a similar unwind 55 is provided for the moisture pervious web 20. The webs 20 and 21 are led through a nip defined by a pair of rolls 56 so as to envelop the pads 10. Prior to the entrance of the web 20 into the nip defined by the ros 56, the side seal adhesive for the seams 22, 23, and 30, 31 is applied by nozzles as at 57. Before the web 21 reaches the nip defined by the rolls S6, transverse lines of adhesive are laid down by a glue printer generally designated 58, which results in the seams 24, 25 and 28, 29.
After leaving the nip defined by the rolls 56, the composite web passes through pull conveyor belts generally designated 59 and which have positioned therein end seal pressure wheels as at 60. Just prior to encountering the pull conveyors 59, the web configuration is as seen in F K]. 8.
As the web in composite form (seen in FIG. 8) issues from the pull conveyors 59, adhesive is applied by means of nozzles 61 to develop the spots 36 and 37 (see FIG. 1). Thereafter the composite web goes through a gusset former to develop the side flaps 32 and 33 (see FIG. 9). this being achieved by the gusset former 62. Thereafter the diaper is equipped with tabs in a tab applicator generally designated 63. the adhesive tape providing the tabs 38 and 39 coming from the unwind 64, while the release strips 40 are provided from the unwind 65. These are transversely severed after uniting by means of a cutoff roll 66. The individual diapers are developed by means ofa diaper cutoff mechanism generally dcsignated 67, after which the individual diapers are advanced through pull belt conveyors generally designated 68 into the nip defined by a pair of folding rolls generally designated 69. From the folding rolls 69, the diapers are automatically stacked in predetermined count units on the leaving conveyor generally designated 70.
We claim:
I. A disposable diaper comprising a generally rectangular pad of soft. moisture-absorbent material, a wad ding web of moisture-absorbent material surrounding the pad, the pad and wadding web being folded into a C-shape along a pair of spaced apart lines to provide an outer pad portion and a pair of inner pad portions superposed on the outer pad portion to form an elongated channel extending parallel to said spaced-apart lines, the inner pad portions and the outer pad portion being of approximately the same thickness, each inner pad portion being separated from the confronting part of the outer pad portion by a double thickness of said wadding web, an enveloping wrap encircling the C folded pad and wadding web and extending across said channel, said enveloping wrap providing side flaps adapted to be unfolded in the direction transverse to the length of said channel and thereafter united at the respective ends thereof and about a baby's waist.
2. The structure of claim l.ir which said enveloping wrap includes a substantially liquid-pervious sheet adjacentsaid inner pad portions and having a width exceeding the width of said C-folded pad, said enveloping wrap also including a substantially liquid-impervious sheet adjacent said outer pad portion and generally coextensive with said liquid-pervious sheet, said sheets being perimetrically united to form said enveloping wrap, said sheets being united along the edges of said C-folded pad to provide side flaps.
3. The structure of claim 2 in which prior to usesaid flaps are folded into positions adjacent said outer pad portion.
4. The structure of claim 3 in which said side flaps are each reverse folded along a line parallel to but spaced from the union at the edge of said C-folded pad.
5. The structure of claim 4 in which each of said side flaps is unitedin the portion thereof between said reverse fold line and the edge of said C-folded pad to a portion of said liquid-impervious sheet, the last mentioned union being located approximately midway of the length of said diaper whereby the ends of said side flaps are free but the intermediate portions are restricted during unfolding.
6. The structure of claim 3 in which ends of said side flaps are equipped with securing tabs.
7. The structure of claim 3 in which said wadding web is a singlesheet having longitudinal edges overlapped within said channel.
8. The structure of claim 1 in which said channel between said inner pad portion is at least about one inch wide.
* i i I i UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Inventor(s) Ernst Daniel N strand and Brian H. McIntosh It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:
(SEAL) Attest:
MCCOY M. GIBSON JR. 0. MARSHALL DANN Attesting Officer Commissioner of Patents
Claims (8)
1. A disposable diaper comprising a generally rectangular pad of soft, moisture-absorbent material, a wadding web of moistureabsorbent matErial surrounding the pad, the pad and wadding web being folded into a C-shape along a pair of spaced apart lines to provide an outer pad portion and a pair of inner pad portions superposed on the outer pad portion to form an elongated channel extending parallel to said spaced-apart lines, the inner pad portions and the outer pad portion being of approximately the same thickness, each inner pad portion being separated from the confronting part of the outer pad portion by a double thickness of said wadding web, an enveloping wrap encircling the C-folded pad and wadding web and extending across said channel, said enveloping wrap providing side flaps adapted to be unfolded in the direction transverse to the length of said channel and thereafter united at the respective ends thereof and about a baby''s waist.
2. The structure of claim 1 in which said enveloping wrap includes a substantially liquid-pervious sheet adjacent said inner pad portions and having a width exceeding the width of said C-folded pad, said enveloping wrap also including a substantially liquid-impervious sheet adjacent said outer pad portion and generally coextensive with said liquid-pervious sheet, said sheets being perimetrically united to form said enveloping wrap, said sheets being united along the edges of said C-folded pad to provide side flaps.
3. The structure of claim 2 in which prior to use said flaps are folded into positions adjacent said outer pad portion.
4. The structure of claim 3 in which said side flaps are each reverse folded along a line parallel to but spaced from the union at the edge of said C-folded pad.
5. The structure of claim 4 in which each of said side flaps is united in the portion thereof between said reverse fold line and the edge of said C-folded pad to a portion of said liquid-impervious sheet, the last mentioned union being located approximately midway of the length of said diaper whereby the ends of said side flaps are free but the intermediate portions are restricted during unfolding.
6. The structure of claim 3 in which ends of said side flaps are equipped with securing tabs.
7. The structure of claim 3 in which said wadding web is a single sheet having longitudinal edges overlapped within said channel.
8. The structure of claim 1 in which said channel between said inner pad portion is at least about one inch wide.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US32560A US3667468A (en) | 1970-04-28 | 1970-04-28 | Sanitary napkin and method and means of producing |
CA107,610A CA952256A (en) | 1970-04-28 | 1971-03-12 | Sanitary napkin and method and means of producing |
DE19712112313 DE2112313B2 (en) | 1970-04-28 | 1971-03-15 | HYGIENIC BANDS |
BE765868A BE765868A (en) | 1970-04-28 | 1971-04-16 | HYGIENIC TOWEL AND METHOD AND DEVICE FOR ITS PRODUCTION |
GB2293871A GB1313962A (en) | 1970-04-28 | 1971-04-19 | Bodily fluid receiving pad and method and apparatus of producing same |
FR7115026A FR2090815A5 (en) | 1970-04-28 | 1971-04-27 | |
US00213768A US3746592A (en) | 1970-04-28 | 1971-12-29 | Method of producing sanitary napkins |
US00230644A US3814100A (en) | 1970-04-28 | 1972-03-01 | Disposable diaper |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3256070A | 1970-04-28 | 1970-04-28 | |
US21376871A | 1971-12-29 | 1971-12-29 | |
US00230644A US3814100A (en) | 1970-04-28 | 1972-03-01 | Disposable diaper |
Publications (1)
Publication Number | Publication Date |
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US3814100A true US3814100A (en) | 1974-06-04 |
Family
ID=27364165
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US32560A Expired - Lifetime US3667468A (en) | 1970-04-28 | 1970-04-28 | Sanitary napkin and method and means of producing |
US00213768A Expired - Lifetime US3746592A (en) | 1970-04-28 | 1971-12-29 | Method of producing sanitary napkins |
US00230644A Expired - Lifetime US3814100A (en) | 1970-04-28 | 1972-03-01 | Disposable diaper |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US32560A Expired - Lifetime US3667468A (en) | 1970-04-28 | 1970-04-28 | Sanitary napkin and method and means of producing |
US00213768A Expired - Lifetime US3746592A (en) | 1970-04-28 | 1971-12-29 | Method of producing sanitary napkins |
Country Status (6)
Country | Link |
---|---|
US (3) | US3667468A (en) |
BE (1) | BE765868A (en) |
CA (1) | CA952256A (en) |
DE (1) | DE2112313B2 (en) |
FR (1) | FR2090815A5 (en) |
GB (1) | GB1313962A (en) |
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US3900031A (en) * | 1974-08-22 | 1975-08-19 | Kimberly Clark Co | Disposable diaper with reinforced waistband and tape attachment means |
US3920017A (en) * | 1974-09-27 | 1975-11-18 | Colgate Palmolive Co | Crotch-shaped diaper and method |
US3995640A (en) * | 1976-01-05 | 1976-12-07 | Colgate-Palmolive Company | Diaper with elastic means |
US4094319A (en) * | 1976-11-01 | 1978-06-13 | Joa Curt G | Sanitary pad with multiple end folds |
EP0040085A2 (en) * | 1980-05-12 | 1981-11-18 | THE PROCTER & GAMBLE COMPANY | Catamenial pad |
FR2502001A1 (en) * | 1981-03-19 | 1982-09-24 | Beghin Say Sa | HYGIENE ARTICLES FOR THE ABSORPTION OF BODILY FLUIDS |
US4731071A (en) * | 1983-11-08 | 1988-03-15 | Beghin-Say S.A. | Liquid-absorbent disposable article |
US4781711A (en) * | 1985-11-04 | 1988-11-01 | The Procter & Gamble Company | Absorbent article having moisture insensitive resilient shaping members |
US4787896A (en) * | 1985-11-04 | 1988-11-29 | The Procter & Gamble Company | Absorbent article having liquid impervious shelves |
US5007906A (en) * | 1989-10-27 | 1991-04-16 | The Procter & Gamble Company | Decoupled sanitary napkin |
US5324278A (en) * | 1990-10-29 | 1994-06-28 | The Procter & Gamble Company | Sanitary napkin having components capable of separation in use |
US5688258A (en) * | 1995-05-02 | 1997-11-18 | The Procter & Gamble Company | Disposable cover for an absorbent materials |
US5733274A (en) * | 1988-03-31 | 1998-03-31 | The Procter & Gamble Company | Sanitary napkin having stiffened center |
US6102892A (en) * | 1996-12-23 | 2000-08-15 | Kimberly-Clark Worldwide, Inc. | Diaper with pleats for containment of liquid and solid waste |
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US20050189063A1 (en) * | 2002-08-30 | 2005-09-01 | Uni-Charm Corporation | Sanitary absorptive article producing device and method |
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US20060149208A1 (en) * | 2004-12-30 | 2006-07-06 | Kimberly-Clark Worldwide, Inc. | Absorbent article with elastomeric end regions |
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Also Published As
Publication number | Publication date |
---|---|
GB1313962A (en) | 1973-04-18 |
CA952256A (en) | 1974-08-06 |
BE765868A (en) | 1971-09-16 |
US3746592A (en) | 1973-07-17 |
DE2112313B2 (en) | 1976-02-12 |
DE2112313A1 (en) | 1971-11-11 |
FR2090815A5 (en) | 1972-01-14 |
US3667468A (en) | 1972-06-06 |
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