WO2007072421A1 - Fasteners having improved comfort - Google Patents
Fasteners having improved comfort Download PDFInfo
- Publication number
- WO2007072421A1 WO2007072421A1 PCT/IB2006/054947 IB2006054947W WO2007072421A1 WO 2007072421 A1 WO2007072421 A1 WO 2007072421A1 IB 2006054947 W IB2006054947 W IB 2006054947W WO 2007072421 A1 WO2007072421 A1 WO 2007072421A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fastening
- layer
- stiffness
- fastening member
- region
- Prior art date
Links
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
- A61F13/56—Supporting or fastening means
- A61F13/5622—Supporting or fastening means specially adapted for diapers or the like
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
- A44B18/0069—Details
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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
- A61F13/15203—Properties of the article, e.g. stiffness or absorbency
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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
- A61F13/45—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
- A61F13/49007—Form-fitting, self-adjusting disposable diapers
- A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic 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
- A61F13/45—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
- A61F13/49007—Form-fitting, self-adjusting disposable diapers
- A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
- A61F13/49011—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the waist region
-
- A—HUMAN NECESSITIES
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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
- A61F13/45—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
- A61F13/49007—Form-fitting, self-adjusting disposable diapers
- A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
- A61F13/49014—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means is located at the side panels
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- A—HUMAN NECESSITIES
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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
- A61F13/45—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
- A61F13/49007—Form-fitting, self-adjusting disposable diapers
- A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
- A61F13/49019—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means being placed longitudinally, transversely or diagonally over the article
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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
- A61F13/45—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
- A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
-
- 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
-
- 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
- A61F13/5622—Supporting or fastening means specially adapted for diapers or the like
- A61F13/565—Supporting or fastening means specially adapted for diapers or the like pants type diaper
- A61F13/5655—Supporting or fastening means specially adapted for diapers or the like pants type diaper adjustable pants type diapers
-
- 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
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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
- A61F13/62—Mechanical fastening means, ; Fabric strip fastener elements, e.g. hook and loop
-
- 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
- A61F13/62—Mechanical fastening means, ; Fabric strip fastener elements, e.g. hook and loop
- A61F13/622—Fabric strip fastener elements, e.g. hook and loop
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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
- A61F13/62—Mechanical fastening means, ; Fabric strip fastener elements, e.g. hook and loop
- A61F13/622—Fabric strip fastener elements, e.g. hook and loop
- A61F13/625—Fabric strip fastener elements, e.g. hook and loop characterised by the hook
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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
- A61F13/15203—Properties of the article, e.g. stiffness or absorbency
- A61F2013/15284—Properties of the article, e.g. stiffness or absorbency characterized by quantifiable properties
- A61F2013/15357—Stiffness, e.g. Taber rigidity
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- 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
- A61F13/45—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
- A61F13/49007—Form-fitting, self-adjusting disposable diapers
- A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
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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
- A61F13/45—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
- A61F13/49007—Form-fitting, self-adjusting disposable diapers
- A61F2013/49042—Form-fitting, self-adjusting disposable diapers with only stretchable part, i.e. part being not elastic but only extensible with not a full recovery of its original length
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- A—HUMAN NECESSITIES
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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
- A61F13/45—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
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- A61F2013/49052—Form-fitting, self-adjusting disposable diapers with only stretchable part, i.e. part being not elastic but only extensible with not a full recovery of its original length having a specific direction of stretchability
- A61F2013/49057—Form-fitting, self-adjusting disposable diapers with only stretchable part, i.e. part being not elastic but only extensible with not a full recovery of its original length having a specific direction of stretchability being stretchable in both longitudinal and transversal direction
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- A—HUMAN NECESSITIES
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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
- A61F13/45—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
- A61F2013/49088—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the leg opening
- A61F2013/49092—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterized by the leg opening comprising leg cuffs
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- A—HUMAN NECESSITIES
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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
- A61F13/45—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
- A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
- A61F2013/4948—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means the edge leakage prevention means being elastic
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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
- A61F2013/530481—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 superabsorbent materials, i.e. highly absorbent polymer gel materials
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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
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/27—Buckles, buttons, clasps, etc. including readily dissociable fastener having numerous, protruding, unitary filaments randomly interlocking with, and simultaneously moving towards, mating structure [e.g., hook-loop type fastener]
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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
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/27—Buckles, buttons, clasps, etc. including readily dissociable fastener having numerous, protruding, unitary filaments randomly interlocking with, and simultaneously moving towards, mating structure [e.g., hook-loop type fastener]
- Y10T24/2783—Buckles, buttons, clasps, etc. including readily dissociable fastener having numerous, protruding, unitary filaments randomly interlocking with, and simultaneously moving towards, mating structure [e.g., hook-loop type fastener] having filaments constructed from coated, laminated, or composite material
Definitions
- the present invention relates to fastening members.
- the present invention relates to fastening members having surface fastening elements and having a portion which has increased resistance to buckling under applied load.
- Refastenable mechanical fastening systems can be used in a wide number of applications.
- refastenable fastening systems can be used to connect one portion of a disposable absorbent article to another portion of the disposable absorbent article.
- mechanical fastening systems may comprise a fastening member having a receiving / female component and/or a fastening member having an engaging / male component.
- the engaging member comprises a plurality of hook elements
- the receiving component comprises a plurality of loop elements. In a fastened state, the hook elements are typically entangled with the loop elements such that a connection between the engaging and receiving components is formed.
- a tension can be applied to the fastening member.
- the applied tension can induce compressive forces in the fastening member which can cause a portion of the fastening member to contract (neck). Additionally, the compressive forces can often act on the engaging component and cause the engaging component to buckle.
- the hook elements of the engaging component can be out of alignment, e.g. not in the same plane. This misalignment of hook elements can cause less than 100% of the hook elements to engage with the receiving component thereby reducing the performance of the fastening system.
- a stiffener can be added to the fastening member to provide added resistance to buckling.
- edges of the stiffener can become exposed when the portion of the fastening member necks. The exposed edges can, in some cases cause irritation to skin of a wearer. Consequently, a need exists for a fastening member which can provide increased resistance to buckling and reduce the likelihood of exposed edges of a stiffening material.
- a fastening member constructed in accordance with the present invention can provide improved fastening system performance.
- a fastening member has an inboard end and an outboard end.
- the fastening member further comprises a panel region, an end region, and a stiffening element.
- the panel region is disposed adjacent to the inboard end and comprises a first layer and a second layer joined to the first layer in a face-to-face orientation.
- the end region is disposed adjacent to the outboard end, and the end region comprises a fastening element zone and an intermediate zone.
- the intermediate zone is disposed between the fastening element zone and the panel region adjacent an interface between the panel region and the end region.
- the stiffening element disposed in the end region and has a stiffness of greater than about
- the stiffening element is disposed between the first layer and the second layer and is joined to the first layer and the second layer proximate to the interface between the panel region and the end region.
- the fastening member may further comprise an elastomeric element disposed between the first layer and the second layer such that the elastomeric element is sandwiched between the first layer and the second layer.
- the fastening element zone can have a first stiffness and the intermediate zone can have a second stiffness, wherein the first stiffness is greater than the first stiffness.
- the fastening member may further comprise a fastening element disposed in the end region which defines the fastening element zone.
- Figure IA is a plan view showing a fastening member constructed in accordance with the present invention.
- Figure IB is a plan view showing additional features of the fastening member of Figure IA.
- Figure 2A is a cross sectional view showing the fastening member of Figure IA as seen through line 2A-2A.
- Figures 2B-2C are cross sectional views showing other embodiments of the fastening member of Figure IA.
- Figure 3 is a cross sectional view showing another embodiment of the fastening member of Figure IA.
- Figure 4A is a plan view showing a disposable diaper comprising fastening members constructed in accordance with the present invention.
- Figure 4B is a plan view showing another embodiment for the fastening members of Figure 8A.
- Figure 5 is an elevation view showing an apparatus for testing the stiffness of materials.
- Figure 6A is a front elevation view showing a plunger for use with the apparatus of Figure 5.
- Figure 6B is a side elevation view showing a plunger for use with the apparatus of Figure 5.
- Figure 7 is a graph showing Peak load and slope calculation areas on bending curve.
- Figure 8 is an elevation view showing the measurement of exposed edges of a stiffening element in a fastening member.
- absorbent article and “article” refer to a wearable device that absorbs and/or contains liquid and, more specifically, refers to a device that is placed against or in proximity to the body of the wearer to absorb and contain the various exudates discharged from the body. Suitable examples include diapers, training pants, refastenable pants, pull-on garments, adult incontinence products and feminine care products such as sanitary napkins.
- the terms "absorbent article” and “article” include a “disposable absorbent article” which is intended to be discarded and not laundered or otherwise restored after no more than ten uses, preferably after no more than five uses, and most preferably after a single use (although certain components may be recycled, reused, or composted).
- “Body-facing” and “garment-facing” refer respectively to the relative location of an element or a surface of an element or group of elements. “Body-facing” implies the element or surface is nearer to the wearer during wear than some other element or surface.
- Garment- facing implies the element or surface is more remote from the wearer during wear than some other element or surface (i.e., element or surface is proximate to the wearer's garments that may be worn over the disposable absorbent article).
- diaper refers to an absorbent article generally worn by infants and incontinent persons about the lower torso so as to encircle the waist and legs of the wearer and that is specifically adapted to receive and contain urinary and fecal waste.
- term “diaper” also includes “pants” which is defined below.
- extensible refers to characteristics of extensible materials that have the ability to return to approximately their original dimensions after a force that extended the extensible material is removed.
- joind encompasses configurations whereby an element is directly secured to another element by affixing the element directly to the other element, and configurations whereby an element is indirectly secured to another element by affixing the element to an intermediate member(s) which in turn are affixed to the other element.
- longitudinal is used herein to refer to a direction which is generally parallel to the longest edge of an element except where otherwise noted.
- a “longitudinal” direction “runs substantially perpendicular from a waist edge to an opposing waist edge of the article and generally parallel to the maximum linear dimension of the article.
- Directions within ⁇ 45 degrees of the longitudinal direction are considered to be “longitudinal”.
- lateral refers to a direction running generally perpendicular to and in the same plane as the "longitudinal” direction. In the context of disposable absorbent articles, a “lateral” direction runs from one longitudinal edge of the article to an opposing longitudinal edge of the article. Directions within ⁇ 45° of the lateral direction are considered to be “lateral”.
- machine direction refers to a direction which is generally parallel to the forward direction of a material, member, element, item, etc. through a process.
- nonwovens are typically formed with a machine direction that corresponds to the long or rolled direction of fabrication.
- the machine direction can also be the primary direction of fiber orientation in the non woven.
- cross direction refers to a direction which is generally perpendicular to and in the same plane as the machine direction.
- a pant can be configured such that the pant has a closed waist and leg openings prior to being donned on the wearer, or the pant can be configured such that the waist is closed and the leg openings formed while on the wearer.
- a pant may be preformed by any suitable technique including, but not limited to, joining together portions of the article using refastenable and/or non-refastenable bonds (e.g., seam, weld, adhesive, cohesive bond, fastener, etc.).
- a pant may be preformed anywhere along the circumference of the article (e.g., side fastened, front waist fastened, rear waist fastened).
- suitable pants are disclosed in U.S. Patent No. 5,246,433; U.S. Patent No. 5,569,234; U.S. Patent No. 6,120,487; U.S. Patent No. 6,120,489; U.S. Patent No. 4,940,464; U.S. Patent No. 5,092,861; U.S. Patent No. 5,897,545; U.S. Patent No. 5,957,908; and U.S. Patent Publication No. 2003/0233082 Al.
- the fastening member of the present invention may provide improved fastening capability.
- the fastening member of the present invention may be incorporated into a variety of consumer and commercial goods that may benefit from having a fastening member constructed in accordance with the present invention.
- the fastening member may be a separate element added to the commercial good.
- the fastening member may be a discrete structure joined to any component (e.g., a topsheet, an absorbent core, a backsheet, a fastening system, a cuff, etc.) of an absorbent article or other commercial good (e.g., a wrap, a medical product, etc.).
- the fastening member may be constructed as part or all of any element of the commercial good or fastener.
- the fastening member may be constructed as part or all of any component (e.g., a topsheet, an absorbent core, a backsheet, a fastening system, a cuff, etc.) of an absorbent article or other commercial good (e.g., a wrap, a medical product, etc.).
- the fastening member may be disposed in any suitable location on or in the commercial good or fastener.
- the fastening member may be disposed on a garment- facing surface of, body- facing surface of, or contained within the commercial good or fastener.
- a fastening member 100 constructed in accordance with the present invention may comprise an inboard end 102 and an outboard end 104.
- the fastening member 100 may further comprise a panel region 110, an end region 120, and a stiffening element 230 (shown in Figure 2A).
- the panel region 110 and the end region 120 are separated by an interface 1700 which comprises a distal end HOB of the panel region 110.
- the panel region 110 can be disposed adjacent to the inboard end 102 of the fastening member 100.
- the panel region 110 may further comprise a proximal edge IIOA and the distal edge HOB. As shown, the proximal edge IIOA can be disposed adjacent to the inboard end 102.
- the panel region 110 can be elastically extensible. In some embodiments, the panel region 110 may be extensible but not elastically extensible. For example, the panel region 110 may lack the ability to return to approximately its original dimensions after a force that extended the panel region is removed.
- the panel region 110 can be more extensible than the end region 120.
- the panel region 110 can extend to greater than or equal to about 100% at an applied load of about 0.5 N/cm.
- the panel region 110 can extend to greater than or equal to about 100% at an applied load of about 1.5 N/cm.
- the panel region 110 can extend to greater than or equal to about 100% at an applied load of about 4.0 N/cm.
- the panel region 110 can extend to greater than or equal to about 150% at an applied load of about 0.5 N/cm.
- the panel region 110 can extend to greater than or equal to about 150% at an applied load of about 1.5 N/cm.
- the panel region 110 can extend to greater than or equal to about 150% at an applied load of about 4.0 N/cm.
- the end region 120 can extend to less than about 100% at an applied load of about 4.0 N/cm, in some embodiments.
- the end region 120 can extend to less than about 50% at the applied load mentioned above.
- the end region 120 can extend to less than about 15% at the applied load mentioned above.
- the end region 120 can be disposed adjacent to the outboard end 104 of the fastening member 100.
- the end region 120 may comprise a fastening element zone 114 and an intermediate zone 112.
- the intermediate zone 112 can be disposed between the fastening element zone 114 and the panel region 110. As shown, in some embodiments, the intermediate zone 112 can be disposed adjacent to the interface 1700 between the panel region 110 and the end region 120.
- the end region 120 may further comprise a grip zone 118 which is disposed between the fastening element zone 114 and the outboard end 104.
- the grip zone 118 can aid a user in handling the fastening member 100.
- the grip zone 118 can aid the user in grasping the fastening member 100 such that the overall process of fastening is facilitated.
- the grip zone 118 can be an extension of the end region 120 or can be a discrete component attached to the end region 120.
- the fastening element zone 114 can be defined by a perimeter of the fastening element 116 which is disposed in the end region 120.
- the fastening element zone 114 includes all layers which are subjacent and/or superjacent to the fastening element 116.
- the fastening element 116 can be joined to the end region 120 by any suitable means. Exemplary means for joining the fastening element 116 to the end region are discussed hereafter with regard to Figures 2A-2C.
- the fastening element zone 114 can have a first stiffness which can be greater than about 1000 N/m, in some embodiments. In some embodiments the first stiffness can be greater than about 1500 N/m. In some embodiments, the first stiffness can be greater than about 2500 N/m. In some embodiments, the first stiffness can be in a range from between about 1000 N/m to about 7000 N/m or any individual number within the range. In some embodiments, the first stiffness can be in a range from about 1500 N/m to about 6000 N/m. In other embodiments, the first stiffness can be in a range from about 2500 N/m to about 5000 N/m.
- the stiffness of the fastening element zone 114 can provide a more stable fastening member 100 in the fastening element zone 114.
- an applied fastening load typically a tension load
- conventional fastening members can contract and fastening elements can buckle.
- the fastening member 100 constructed in accordance with the present invention, comprises a fastening element zone 114 which can have a greater stiffness than a corresponding fastening element zone in a conventional fastening member, the fastening element zone 114 can be more resistant to buckling when the fastening load is applied to the fastening member 100.
- the fastening element zone 114 may be more resistant to buckling
- the fastening element 116 may also be more resistant to buckling. Because of the fastening element's increased resistance to buckling, it is believed that more of the fastening element 116 can engage its target surface during fastening.
- a portion of the intermediate zone 112 can have a second stiffness which can be less than the first stiffness.
- the second stiffness can be less than about 1000 N/m.
- the second stiffness can be greater than about 200 N/m.
- the second stiffness can be greater than about 300 N/m.
- the second stiffness can be greater than about 400 N/m.
- the second stiffness can be in a range from about 200 N/m to about 1000 N/m or any individual number within the range.
- the second stiffness can be in a range from about 300 N/m to about 750 N/m.
- the second stiffness can be in a range from about 400 N/m to about 600 N/m.
- the portion of the intermediate zone 112 having the second stiffness can be disposed adjacent to the interface 1700. Additionally, in some embodiments, the portion of the intermediate zone 112 having the second stiffness can be disposed inward (toward the inboard end 102) from an inner edge 302 of the fastening element 116. For example, in some embodiments, the portion can be disposed inward (toward the inboard end 102) at least about 10% of an intermediate zone width 133 (shown in Figure IB) from the inner edge 302 of the fastening element 116. In some embodiments, the portion can be disposed inward (toward the inboard end 102) at least about 25% of the intermediate zone width 133 (shown in Figure IB) from the inner edge 302 of the fastening element 116.
- the portion can be disposed inward (toward the inboard end 102) at least about 50% of the intermediate zone width 133 (shown in Figure IB) from the inner edge 302 of the fastening element 116. In some embodiments, the portion can be disposed inward (toward the inboard end 102) at least about 75% of the intermediate zone width 133 (shown in Figure IB) from the inner edge 302 of the fastening element 116. In some embodiments, the portion can be disposed inward (toward the inboard end 102) at least about 95% of the intermediate zone width 133 (shown in Figure IB) from the inner edge 302 of the fastening element 116.
- the intermediate zone 112 is not limited to having only a portion with the second stiffness. In some embodiments, the entire intermediate zone 112 may comprise the second stiffness. However, in other embodiments, the intermediate zone 112 may comprise a stiffness gradient. For example, a first portion of the intermediate zone 112 proximate to the fastening element zone 114 may comprise a stiffness which is equal to the first stiffness, e.g. greater than about 1000 N/m. In contrast, a second portion of the intermediate zone 112 proximate to the interface 1700 between the panel region 110 and end region 120 may comprise a stiffness which is equal to the second stiffness, e.g. less than about 1000 N/m.
- a third portion of the intermediate zone 112, disposed between the first portion and the second portion can have a stiffness which is between the first stiffness and the second stiffness.
- the stiffness of the intermediate zone 112 may vary continuously from the inner edge 302 to the second portion of the intermediate zone 112 proximate to the interface 1700. In these embodiments, the stiffness may increase and/or decrease. The reduced stiffness in the portion of the intermediate zone 112 can provide improved comfort for the wearer.
- the fastening member 100 can be attached to a disposable absorbent article such that the intermediate zone 112 is positioned in a high movement area of a wearer. In these instances, an increased stiffness, e.g.
- a portion of the intermediate zone 112 of the present invention has decreased stiffness, e.g. less than about 1000 N/m, thereby allowing the portion of the intermediate zone 112 to more readily buckle instead of poking the skin of the wearer.
- the panel region 110 may have a third stiffness.
- the third stiffness can be less than about 250 N/m, in some embodiments. In other embodiments, the third stiffness can be less than about 150 N/m. In other embodiments, the third stiffness can be less than about 100 N/m. In some embodiments, the third stiffness can be less than the second stiffness. In some embodiments, the third stiffness can be equal to the second stiffness.
- the fastening members of the present invention can be joined to a disposable absorbent article in an area which is subject to much movement of the wearer, in some embodiments.
- fastening members of the present invention can be joined to a disposable diaper as a side panel, in some embodiments.
- the side panels are typically located in high movement areas of the disposable diaper
- another advantage of having a reduced stiffness in the panel region 110, compared to the fastening element zone 114, is that the reduced stiffness panel region may conform to the wearer much easier than a stiffer material would. Additionally, because the fastening member is in a high movement area of the disposable diaper, a stiffer panel region could potentially cause redmarking on the skin of the wearer.
- the fastening member 100 may further comprise a stiffening element 230 (shown in Figures 2A-2C and 3).
- the stiffening element 230 (shown in Figures 2A-2C and 3) can be disposed in the end region 120.
- the intermediate zone 112 comprises a portion of the stiffening element 230 (shown in Figures 2A-2C and 3).
- the fastening element zone 114 comprises a portion of the stiffening element 230 (shown in Figures 2A-2C and 3).
- the stiffening element 230 (shown in Figures 2A-2C and 3) may comprise the entire end region 120.
- the stiffening element 230 (shown in Figures 2A-2C and 3) can achieve the desired first stiffness in the fastening element zone 114 and/or can achieve the desired second stiffness in the intermediate zone 112. In some embodiments, the stiffening element 230 (shown in Figures 2A- 2C and 3) can have a stiffness of less than about 1000 N/m. In some embodiments, the stiffening element 230 (shown in Figures 2A-2C and 3) can have a stiffness of greater than about 200 N/m. In some embodiments, the stiffening element 230 (shown in Figures 2A-2C and 3) can have a stiffness of greater than about 300 N/m.
- the stiffening element 230 (shown in Figures 2A-2C and 3) can have a stiffness of greater than about 400 N/m. In some embodiments, the stiffening element 230 (shown in Figures 2A-2C and 3) can have a stiffness in a range from about 200 N/m to about 1000 N/m or any individual number within the range. In some embodiments, the stiffening element 230 (shown in Figures 2A-2C and 3) can have a stiffness in a range from about 300 N/m to about 750 N/m. In some embodiments, the stiffening element 230 (shown in Figures 2A-2C and 3) can have a stiffness in a range from about 400 N/m to about 600 N/m.
- the fastening member 100 adjacent the inboard end 102, can have a fastening member length 122.
- the end region 120 adjacent to the interface 1700, can have an end region length 125, and the fastening element 116 can have a fastening element length 126.
- the fastening member length 122 is the maximum linear distance between a leading edge 1010 and a trailing edge 1012.
- the end region length 125 is the maximum linear distance between the leading edge 1010 and the trailing edge 1012 adjacent to the interface 1700.
- the fastening element length 126 is the maximum linear distance between a first end edge 1015 and a second end edge 1016 of the fastening element 116.
- the maximum linear distances mentioned above are generally parallel to a first direction 490.
- the fastening member length 122 can be equal to the end region length 125, and the fastening element length 126 can be equal to the end region length 125. In some embodiments, the fastening element length 126 can be less than the end region length 125 which is less than the fastening member length 122. For example, the fastening element length 126 can be less than or equal to about 90% of the end region length 125. As another example, the fastening element length 126 can be less than or equal to about 80% of the end region length 125. As yet another example, the fastening element length 126 can be less than or equal to about 50% of the end region length 125.
- the fastening element length 126 can be less than or equal to about 90% of the fastening member length 122. As yet another example, the fastening element length 126 can be less than or equal to about 80% of the fastening member length 122. As yet another example, the fastening element length 126 can be less than or equal to about 50% of the fastening member length 122. As shown, the intermediate zone 112 may have an intermediate zone width 133 and the fastening element 116 can have a fastening element width 132.
- the intermediate zone width 133 is the maximum linear distance between an inwardmost point 250 (shown in Figure 2A) of a stiffening element 230 (shown in Figures 2A-2C and 3) and the inner edge 302 of the fastening element 116.
- the fastening element width 132 is the maximum linear distance between the inner edge 302 and the outer edge 304 of the fastening element 116.
- the maximum linear distances for the intermediate zone width 133 and the fastening element width 132 are generally parallel to a second direction 491.
- the intermediate zone width 133 can be greater than about zero percent of the fastening element width 132. In some embodiments, the intermediate zone width 133 can be greater than about 25% of the fastening element width 132. In some embodiments, the intermediate zone width 133 can be greater than about 50% of the fastening element width 132. In some embodiments, the intermediate zone width 133 can be greater than about 100% of the fastening element width 132.
- the first direction 490 can be generally parallel to a machine direction, in some embodiments.
- the second direction 491 can be generally parallel to a cross machine direction. In some embodiments, the second direction 491 can be generally perpendicular to the first direction 490. In some embodiments, the second direction 491 can be generally parallel to a primary direction of applied tension force, e.g. the force applied to the fastening member during fastening.
- the perimeter of the fastening element 116 defines the fastening element zone 114. Consequently, the fastening element width 132 is also the width of the fastening element zone 114. Similarly, the fastening element length 126 is also the length of the fastening element zone 114.
- the panel region 110 and the end region 120 can be separated by the interface 1700. In some embodiments, the interface 1700 can be defined, in part, by the inwardmost point 250 (shown in Figure 2A) of the stiffening element 230 (shown in Figures 2A-2C and 3).
- the fastening element zone 114 can have an increased stiffness compared to the intermediate zone 112 and, in some embodiments, when compared to the stiffness of the panel region 110.
- the stiffness of the fastening element zone 114 can be increased by any suitable means. Examples of suitable means of increasing the stiffness of the fastening element zone 114 are discussed with regard to Figures 2A-2C
- the panel region 110 may comprise a laminated structure.
- the panel region 110 may comprise a first substrate 202 and a second substrate 204.
- the first substrate 202 and the second substrate 204 can be joined together in a face-to-face orientation.
- the first substrate 202 and the second substrate 204 can be joined together by a first bonding agent 216 and/or a second bonding agent 217.
- the end region 120 may also comprise a laminated structure.
- the end region 120 may comprise the stiffening element 230 and the fastening element 116.
- the end region 120 further comprises at least a portion of the first substrate 202 and/or the second substrate 204.
- the stiffening element 230 can be disposed between the first substrate 202 and the second substrate 204.
- the stiffening element 230 may comprise a first portion 260 and, in some embodiments, a second portion 265 (shown in Figure 2B).
- the first portion 260 can be disposed adjacent to the panel region 110 while the second portion 265 can be disposed adjacent to the outboard end 104.
- the first portion 260 may have a first portion width 280 which is the maximum linear distance generally parallel to the second direction 491 between the inwardmost point 250 of the stiffening element 230 and an outwardmost point 251 of the second bonding agent 217 or an outwardmost point 252 of the first bonding agent 216 whichever is less.
- the first portion width 280 may extend all the way out to the outboard end 104 as shown in Figure 2A.
- the first portion 260 can be secured between the first substrate 202 and the second substrate 204 by the first bonding agent 216, the second bonding agent 217, and/or any other suitable means.
- the fastening element 116 can be joined to the second substrate 204 by a third bonding agent 218.
- the fastening element 116 can be joined to the stiffening element 230 by the third bonding agent 218.
- the first substrate 202 and/or the second substrate 204 may extend outward from the inboard end 102 to the outboard end 104 such that the first substrate 202 and/or the second substrate 204 comprise the entire end region 120.
- the first portion 260 may comprise the entire stiffening element 230.
- the first substrate 202 and/or the second substrate 204 can extend outward from the inboard end 102 such that the first substrate 202 and/or the second substrate 204 comprise a portion of the end region 120 but not the entire end region 120.
- the intermediate zone 112 may comprise a portion of the first substrate 202 and/or the second substrate 204 yet, the fastening element zone 114 may not comprise the first substrate 202 and/or second substrate 204.
- the first substrate 202 and/or the second substrate 204 may extend outward from the inboard end 102 such that the intermediate zone 112 and the fastening element zone 114 each comprise a portion of the first substrate 202 and/or the second substrate 204.
- the first bonding agent 216 and/or the second bonding agent 217 may extend from the inboard end 102 toward the outboard end 104 overlapping a portion of the end region 120. In some embodiments, the first bonding agent 216 and/or the second bonding agent 217 overlap at least the first portion 260 of the stiffening element 230 such that the stiffening element 230 is joined to the first substrate 202 and the second substrate 204.
- the first substrate 202 can extend from the inboard end 102 to the outboard end 104 such that the first substrate 202 comprises the entire end region 120.
- the first bonding agent 216 can similarly extend from the inboard end 102 to the outboard end 104 such that first bonding agent 216 comprises the entire end region 120.
- the second bonding agent 217 can extend from the inboard end 102 into the end region 120 such that the second bonding agent 217 overlaps a portion of the intermediate zone 112.
- the second substrate 204 can be configured as described above with regard to Figure 2B.
- the stiffening element 230 may be any suitable size.
- the stiffening element 230 may overlap the entire end region 120.
- the first portion 260 of the stiffening element 230 can be disposed between the first substrate 202 and the second substrate 204 and extend outward such that the stiffening element 230 comprises part of the fastening element zone 114.
- the stiffening element 230 can extend inward from the outboard end 102 to the inboard end 102 such that the stiffening element 230 comprises the entire panel region 110.
- An advantage of the present invention is that the first portion 260 of the stiffening element 230 is disposed between and is joined to the first substrate 202 and to the second substrate 204. Because the first portion 260 is joined to the first substrate 202 and to the second substrate 204, edges of the first portion 260 are secured between the first substrate 202 and the second substrate 204. So, the edges of the stiffening element 230 are less likely to be exposed when the fastening member is under tension.
- the first portion width 280 can be of any suitable size.
- the first portion width 280 can be greater than about 2% of the intermediate zone width 133.
- the first portion width 280 can be between about 2% and 100% of the intermediate zone width 133 or any individual number within the range.
- the first portion width 280 can be between about 10% and 75% of the intermediate zone width 133.
- the first portion width 280 can be between about 25% and 50% of the intermediate zone width 133.
- the first portion width 280 may be greater than or equal to the fastening element width 132 in addition to the intermediate zone width 133.
- the first portion width 280 can be equal to an end region width.
- the first portion width 280 can be greater than about 1 mm and less than or equal to about 50 mm or any individual number within the range. In some embodiments, the first portion width 280 can be greater than or equal to about 4 mm and less than or equal to about 35 mm. In some embodiments, the first portion width 280 can be greater than or equal to about 8 mm and less than or equal to about 25 mm.
- edges of the stiffness element 230 in the first portion 260 are exposed less than about 1 mm. In some embodiments, the edges of the stiffness element 230 have an exposed edge length measurement of less than about 2 mm. As shown in Figure 8, exposed edge length is the maximum distance generally parallel to the first direction 490 between a first edge 1018 of the stiffening element 230 and the leading edge 1010. Alternatively, exposed edge length can be the maximum distance generally parallel to the first direction 490 between a second edge 1017 of the stiffening element 230 and the trailing edge 1012. The test method for measuring exposed edge length is hereafter. In some embodiments, the edges of the stiffness element 230 in the first portion 260 are exposed less than about 0.5 mm. In some embodiments, the edges of the stiffness element 230 have an exposed edge length of less than about 0 mm.
- a ratio of the amount of exposed edges of the stiffness element 230 to the end region length 125 defines an exposure ratio and can be between about 0% to about 10% or any individual number within the range. In some embodiments, the exposure ratio can be less than or equal to about 5%. In some embodiments, the exposure ratio can be less than or equal to about 3%. In some embodiments, the exposure ratio can be less than or equal to about 2%. In some embodiments, the exposure ratio can be less than or equal to about 1%. In some embodiments, a exposure ratio of the amount of exposed edges of the stiffness element 230 to the fastening element length 126 can be between about 0% to about 10% or any individual number within the range.
- the exposure ratio can be less than or equal to about 5%. In some embodiments, the exposure ratio can be less than or equal to about 3%. In some embodiments, the exposure ratio can be less than or equal to about 2%. In some embodiments, the exposure ratio can be less than or equal to about 1%.
- the panel region can be elastically extensible in some embodiments.
- a fastening member constructed in accordance with the present invention may comprise an elastomeric element.
- the panel region 110 may comprise, in addition to the first substrate 202 and the second substrate 204, an elastomeric element 240.
- the elastomeric element 240 can be sandwiched between the first substrate 202 and the second substrate 204.
- the elastomeric element 240 can be joined to the first substrate 202 and/or the second substrate 204 by the first bonding agent 216, the second bonding agent 217, and/or any other suitable means.
- the stiffening material 230 can be disposed between the elastomeric element 240 and the first substrate 202. In other embodiments, the stiffening element 230 can be disposed between the elastomeric element 240 and the second substrate 204. Additionally, despite the fact that Figure 3 shows the first substrate 202 and/or the second substrate 204 comprising the entire end region 120, the first substrate 202 and/or the second substrate 204 can be configured as discussed previously with regard to Figures 2A-2C. In embodiments where the stiffening element 230 overlaps a portion of the elastomeric element 240, a bonding agent can be disposed between the stiffening element 230 and the elastomeric element 240.
- the elastomeric element 240 can extend from the inboard end 102 to the end region 120 such that only a portion of the end region 120, e.g. the intermediate zone 112, comprises a portion of the elastomeric element 240. In other embodiments, the elastomeric element 240 can extend from the inboard end 102 to the outboard end 104 such that the elastomeric element 240 comprises the entire end region 120. In other embodiments, the elastomeric element 240 can extend from the inboard end 102 to the end region 120 such that the intermediate zone 112 and the fastening element zone 114 each comprise a portion of the elastomeric element 240.
- the fastening members of the present invention may comprise a wide variety of materials.
- the first substrate 202 and/or the second substrate 204 may comprise a woven, non woven, film, a laminate, the like, or any combination thereof.
- the first substrate 202 and/or the second substrate 204 may be extensible and/or elastically extensible.
- any suitable nonwoven can be used.
- the nonwoven may comprise one layer of fibers. In other embodiments, the nonwoven may comprise more than one layer of fibers. Any suitable nonwoven can be used.
- a suitable nonwoven may comprise fibers made of polypropylene, polyethylene, polyester, nylon, cellulose, polyamide, or combinations of such materials. Fibers of one material or fibers of different materials or material combinations may be used in the first and/or second nonwoven.
- Exemplary nonwoven materials include spunbond, spunbond meltblown spunbond (SMS), spunbond meltblown meltblown spunbond (SMMS), carded, meltblown, and the like.
- Particularly acceptable nonwovens include high elongation carded (HEC) nonwovens and deep activation polypropylene (DAPP) nonwovens. Any process known in the art may be used to make the nonwovens.
- the nonwoven may comprise fibers that are bonded mechanically, including fibers that are needle punched or hydro entangled.
- suitable bonding processes for producing a suitable nonwoven for use in the present invention are spun bonding, thermally bonding, bonding by various types of chemical bonding such as latex bonding, powder bonding, and the like.
- the basis weight of the non woven can be in the range of about 10 gsm to about 100 gsm or any individual number within the range. In other embodiments, the basis weight of the nonwoven can be in a range of about 40 gsm to about 80 gsm. In yet other embodiments, the basis weight of the nonwoven can be in a range of about 50 gsm to about 60 gsm.
- the basis weights of the substrates of the present invention can be any suitable basis weight.
- the fibers may be of any suitable size and shape.
- the fiber may have a denier ranging from about 1 to about 10 or any individual number within the range.
- the denier of the fibers can range from about 1 to about 8. In other embodiments, the denier of the fibers can range from about 1 to about 5.
- the elastomeric element 340 may comprise any suitable elastic known in the art. Suitable elastomeric elements may comprise a wide variety of materials as are well known in the art. Some examples include elastomeric films, polyurethane films, elastomeric foams, formed elastic scrim and synthetic elastomers (e.g., LycraTM). A suitable elastomeric element 240 for use in conjunction with the present invention may comprise elastic strands and/or elastic films. Any suitable elastic film known in the art can be used. Suitable elastic films may comprise polypropylene, polyethylene, polyolefins, styrene-isoprene-styrene, styrene-butadiene-styrene, or combinations thereof. The basis weight of the films can range from about 10 gsm to about 100 gsm.
- the elastomeric element 340 may further comprise elastic strands.
- Suitable elastic strands can be made of a resilient elastic thermoplastic material.
- the elastic strands may be made from liquid elastic that is extruded through a die to achieve the desired strand elastic diameter and/or shape.
- the shape of the extruded elastic strands is not limited.
- typical elastic strands have a circular cross sectional shape, but sometimes the elastic strands may have different shapes, such as a trilobal shape, or a flat (i.e., "ribbon” like) shape.
- Suitable elastic strand shapes include rectangles, circles, ellipses, diamonds, triangles, parallelograms, trapezoids, wedges, or other sections of circles or ellipses, other polygons, or other irregular enclosed shapes.
- the thickness or diameter of the elastic strands may vary in order to accommodate a particular application. Typically, the thickness of elastic strands may be in the range of about 0.02 mm to about 1 mm and the basis weight is in the range of about 20 g/m2 to about 300 g/m2.
- the elastic strands may be applied separately to the substrate, can be extruded onto the substrate, or can be printed onto the substrate.
- the individual elastic strands may be configured as lines or strands generally having widths less than about 2 mm and typically less than about 1 mm.
- Linear elastic strands may be configured as bands generally having widths between about 2 mm and about 20 mm and aspect ratios ranging from about 2:1 to about 100:1.
- the thickness of an elastic strand may be in the range of about 0.02 mm to about 5 mm and the basis weight is in the range of about 20 g/m 2 to about 300 g/m 2 .
- the first bonding agent 216, the second bonding agent 217, and/or the third bonding agent 218, may comprise any suitable bonding agent known in the art.
- at least one of the bonding agents may comprise an adhesive. Any suitable adhesive can be used in the present invention.
- the adhesive may comprise styrene- olefin-styrene triblock copolymers such as styrene-isoprene-styrene, styrene-butadiene-styrene, the like, or combinations thereof.
- a suitable bonding agent for joining the fastening element 116 to the stiffening element 230 and/or the second substrate 204 is an adhesive made from Bostik located in Wauwatosa, Wisconsin, having a model number H2988-F02.
- the fastening element 116 can be joined to the stiffening element 230 and/or the second substrate 204 via the bonding agent plus mechanical bonds, fusion bonds, the like, or any combination thereof.
- the fastening element 116 can be joined to the stiffening element 230 and/or the second substrate 204 via mechanical bonds, fusion bonds, or the like, or any suitable combination thereof.
- At least one of the bonding agents may comprise a polymer. Any suitable polymer known in the art can be utilized. Some examples of suitable polymers include a high modulus hot melt polymer, or may include a molten polymer. Any suitable molten polymer can be used. Some examples of molten polymers include polyethylene, polypropylene, the like, or any suitable combinations thereof.
- the basis weight of the first bonding agent 216, the second bonding agent 217, and/or the third bonding agent 218 in the fastening element zone 114 can be greater than or equal to about 30 gsm. In other embodiments, the first bonding agent 216, the second bonding agent 217, and/or the third bonding agent 218 in the fastening element zone 114 can have a basis weight of greater than or equal to about 60 gsm. In some embodiments, first bonding agent 216, the second bonding agent 217, and/or the third bonding agent 218 in the fastening element zone 114 can have a basis weight of greater than or equal to about 100 gsm.
- the stiffening material 230 can be any suitable stiffening material known in the art.
- suitable stiffening materials 230 include webs of any type, e.g. woven, nonwoven, laminates, natural or synthetic materials including polypropylene, polyethylene, poly(ethylene terephthalate), nylon, paper, cellulose, styrene-isoprene-styrene, styrene-butadiene- styrene block copolymers, the like, or any suitable combination thereof.
- suitable laminates include bilaminates of film and nonwoven such as M18-750 or M18-1O18 manufactured by Clopay Corporation, Cincinnati, OH.
- An example of a suitable nonwoven is Typar SBPP3301Y manufactured by BBA Fiberweb TM, located in Brentwood, TN.
- the fastening members of the present invention can be utilized in a number of consumer goods.
- the fastening members of the present invention can be joined to a disposable diaper.
- An example of such an embodiment is shown in Figure 4A.
- fastening members IOOA and IOOB constructed in accordance with the present invention can be joined to a disposable diaper 500.
- the fastening members IOOA and IOOB can be configured similarly to the fastening members discussed heretofore.
- the fastening members IOOA and IOOB can be joined to the disposable diaper 500 adjacent to their respective inboard ends 102A and 102B.
- the disposable diaper 500 may comprise a liquid pervious topsheet 522 and a backsheet 524 joined to at least a portion of the topsheet 522.
- the disposable absorbent article 500 further comprises an absorbent core 546 positioned between the topsheet 522 and the backsheet 524.
- the disposable diaper 500 may further comprise elastic leg features 532, a first waist member 502 and a second waist member 504.
- a portion of the periphery of the disposable diaper 500 can be defined by the longitudinal edges 575 A and 575B; a first waist edge 550, and the second waist edge 551.
- the longitudinal edges 575A and 575B can run generally parallel to a longitudinal centerline 590 of the disposable absorbent article 500.
- the first waist edge 550 and the second waist edge 551 can run generally parallel to a lateral centerline 580 of the disposable diaper 500.
- the first waist member 502 and/or the second waist member 504 can be elastically extensible. As shown, in some embodiments, the first waist member 502 can be disposed adjacent the first waist edge 550. In some embodiments, the second waist member 504 can be disposed adjacent to the second waist edge 551. Generally, the first waist member 502 and/or the second waist member 504 can be under tension prior to being joined to the disposable diaper 500. So, upon release of at least a portion of the tension applied to the first waist member 502 and/or the second waist member 504, a portion of the disposable diaper 500 joined thereto can corrugate.
- This corrugation of the disposable diaper 500 can allow the first waist member 502 and/or the second waist member 504 and the disposable diaper 500 to expand and contract about the waist of a wearer, thereby providing more comfort and improved fit to a wearer.
- suitable waist members 502 and/or 504 include those described in U.S. Patent No. 4,515,595; U.S. Patent No. 5,151,092; and U.S. Patent No. 5,221,274.
- disposable diapers are generally constructed so as to have two elastic waist features, one positioned in a first waist region and one positioned in a second waist region, diapers can be constructed with a single elastic waist feature.
- the disposable diaper 500 may further comprise outer cuffs and inner cuffs to improve containment of liquids and other body exudates.
- Each elasticized outer cuff may include several different embodiments for reducing the leakage of body exudates in the leg regions.
- Outer cuffs and inner cuffs are further described in U.S. Patent No. 3,860,003; U.S. Patent No. 4,909,803; and U.S. Patent No. 4,695,278.
- the disposable diaper 500 may further comprise the fastening members IOOA and 10OB.
- the fastening members IOOA and IOOB can be joined to the disposable diaper 500 such that a portion of the panel region 410A and a portion of the panel region 410B can extend outward from the first longitudinal edge 575A and the second longitudinal edge 575B of the disposable diaper 500, respectively.
- the fastening members IOOA and IOOB can be joined to the disposable diaper 500 in a second waist region 538, and in some embodiments, the fastening members IOOA and IOOB can be joined to the disposable diaper 500 in a first waist region 536.
- the disposable diaper 500 may comprise fastening members in the second waist region 538 and fastening members disposed in the first waist region 536.
- at least one of the fastening members in the first waist region and/or the fastening members in the second waist region comprise complimentary fastening elements.
- the fastening members in the second waist region may include fastening elements which comprise engaging components while the fastening members in the first waist region may include fastening elements which comprise receiving components. Any suitable combination of complementary fastening elements can be used.
- the disposable diaper 500 may comprise fastening members having a plurality of fastening members as shown in Figure 4B.
- fastening members 1200A and 1200B may comprise a plurality of fastening elements.
- fastening member 1200A can include an engaging component 1242 having a plurality of engaging elements.
- the engaging component 1242 can be disposed on a first surface 1202A of the fastening member 1200A.
- the fastening member 1200A may further comprise a receiving component 1275 which can be disposed on a second surface 1204A of the fastening member 1200A, in some embodiments.
- the second surface 1204A can be opposite to the first surface 1202A.
- the second fastening member 1200B may comprise an engaging component 1243 disposed on a first surface 1202B and an engaging component 1273 disposed on a second surface 1204B, in some embodiments.
- the engaging components 1242 and 1243 can engage a receiving component disposed on the disposable diaper 500 (shown in Figure 4A) or can join to the receiving components 1275 and 1273 on the other fastening member.
- the engaging component 1242 can join the receiving component 1273 when fastened.
- the engaging component 1243 can join the receiving component 1275 when fastened.
- the fastening members IOOA and IOOB can form a portion of the leg openings when the disposable diaper 500 is fastened.
- the fastening members IOOA and IOOB can form a portion of the leg openings which would be disposed on an outer surface of a leg of a wearer.
- a crotch region 510 of the disposable diaper 500 in conjunction with the first waist region 536 and the second waist region 538 can form a portion of the leg openings which would be disposed on an inner surface of the leg of the wearer.
- the fastening members IOOA and IOOB can be joined to an outer- facing surface of the backsheet 524. In some embodiments, the fastening members IOOA and IOOB can be joined to a wearer-facing surface of the topsheet 522. In some embodiments, the fastening members IOOA and IOOB can be joined to the disposable diaper 500 between the topsheet 522 and the backsheet 524. The fastening members IOOA and IOOB can be joined to the disposable diaper 500 in any suitable configuration or location.
- the disposable diaper 500 further comprises a fastening system 540 which joins at least a portion of a first waist region 536 with at least a portion of a second waist region 538, preferably to form leg and waist openings.
- the fastening system 540 also works with the waist members(s) 502 and/or 504 to maintain lateral tension in order to keep the disposable absorbent article 500 in place about the waist of the wearer.
- the fastening system 540 may comprise fastening elements 416A and 416B which, in some embodiments, can be disposed on the fastening members IOOA and IOOB.
- the fastening system 540 may further comprise a receiving component which, in some embodiments, is disposed in the first waist region 536 of the disposable diaper 500.
- the fastening element 416A and 416B can be configured to engage the receiving component thereby joining the first waist region 536 and the second waist region 538 of the disposable diaper 500.
- fastening elements Any suitable fastening elements known in the art can be used in the present invention.
- suitable fastening elements include engaging components, receiving components, adhesive components, cohesive components, the like, or any suitable combination thereof.
- An example of a suitable engaging component may comprise hook fastening material.
- the hook fastening material can mechanically engage fibrous elements of a receiving element so as to provide a secure closure.
- a hook fastening material according to the present invention may be manufactured from a wide range of materials. Examples of suitable materials include nylon, polyester, polypropylene, or any combination of these materials, or other materials as are known in the art.
- a suitable hook fastening material comprises a number of shaped engaging elements projecting from a backing such as the commercially available material designated ScotchmateTM brand No. FJ3402 available from Minnesota Mining and Manufacturing Company, St. Paul, Minn.
- the engaging elements may have any shape such as hooks, "T's", mushrooms, or any other shape as are well known in the art.
- An exemplary hook fastening material is described in U.S. Patent No. 4,846,815.
- Another suitable hook fastening material comprises an array of prongs formed of thermoplastic material.
- Hot melt adhesive thermoplastics in particular polyester and polyamide hot melt adhesives, are particularly well suited for forming the prongs of the hook fastening material.
- the prongs in some embodiments, can be manufactured using a modified gravure printing process by printing the thermoplastic material in its molten state onto a substrate in discrete units, severing the material in a manner that allows stretching of a portion of the thermoplastic material prior to severance, and allowing the stretched molten material to "freeze” resulting in prongs.
- hook fastening material and methods and apparatus for making such a hook fastening material are more fully detailed in European Patent Application 0 381 087.
- the hooks can be thermoplastically printed. Examples of suitable hook printing processes are described in U.S. Patent No. 5,540,673 and in WO 2004/082918.
- An example of a suitable receiving component may comprise a plurality of loops. Loop fastening material and a method for making the same are described in U.S. Patent No. 5,380,313; U.S. Patent No. 5,569,233; U.S. Patent No. 5,407,439; U.S. Patent No. 5,542,942; U.S. Patent No. 5,669,900; U.S. Patent No. 5,318,555; U.S. Application Publication No. 2003/0077430; and WO 04/030763.
- An example of a suitable adhesive component may comprise discrete tape tabs.
- An example of a suitable tape tab is available from the 3M Corporation of St. Paul, Minnesota, U.S.A. under the designation of XMF99121.
- An example of a suitable cohesive component may comprise cohesive fastening patches.
- the cohesive fastening patches may be formed of an inherently crystalline water-based synthetic elastomer to which a tackifying agent has been added to disrupt the polycrystalline structure and thereby render the elastomer cohesive.
- Exemplary synthetic cohesive products are available from Andover Coated Products, Incorporated, of Salisbury, Massachusetts, U.S.A. and are described in U.S. Patent No. 6,156,424.
- Disposable diapers may comprise many components, elements, members, etc. and can be constructed in a variety of manners.
- the topsheet and the backsheet can have length and width dimensions generally larger than those of the absorbent core.
- the topsheet and the backsheet can extend beyond the edges of the absorbent core, thereby forming the periphery of the disposable absorbent article.
- the topsheet, the backsheet, and the absorbent core may include many different materials and may be assembled in a variety of well known configurations, exemplary diaper materials and configurations are described generally in U.S. Patent No. 3,860,003; U.S. Patent No. 5,151,092; and U.S. Patent No. 5,221,274. Any topsheet compatible with the present invention which is known in the art can be used in the present invention.
- a suitable material for a topsheet may be manufactured from a wide range of materials, such as porous foams, reticulated foams, apertured plastic films, or woven or nonwoven materials of natural fibers (e.g., wood or cotton fibers), synthetic fibers (e.g., polyester or polypropylene fibers), or a combination of natural and synthetic fibers.
- a material suitable for use in a topsheet comprises a web of staple-length polypropylene fibers is manufactured by Veratec, Inc., a Division of International Paper Company, of Walpole, MA under the designation P-8.
- topsheets are described further in U.S. Patent No. 3,929,135; U.S. Patent No. 4,324,246; U.S. Patent No. 4,342,314; U.S. Patent No. 4,463,045; U.S. Patent No. 5,006,394; U.S. Patent No. 4,609,518; U.S. Patent No. 4,629,643. Any portion of the topsheet may be coated with a lotion as is known in the art. Examples of suitable lotions include those described in U.S. Patent No. 5,607,760; U.S. Patent No. 5,609,587; U.S. Patent No. 5,635,191; U.S. Patent No. 5,643,588; U.S.
- topsheet may be fully or partially elastically extensible or may be foreshortened so as to provide a void space between the topsheet and the absorbent core.
- Exemplary structures including elasticized or foreshortened topsheets are described in more detail in U.S. Patent No. 4,892,536; U.S. Patent No. 4,990,147; U.S. Patent No. 5,037,416; and U.S. Patent No. 5,269,775.
- a suitable backsheet for use in the disposable absorbent article of the present invention may comprise a laminated structure.
- the backsheet may comprise a first backsheet layer and a second backsheet layer.
- the second backsheet layer can be impervious to liquids (e.g., urine) and comprise a thin plastic film such as a thermoplastic film having a thickness, for example, of about 0.012 mm (0.5 mils) to about 0.051 mm (2.0 mils).
- Suitable backsheet films include those manufactured by Tredegar Corporation, based in Richmond, VA, and sold under the trade name CPC2 film.
- Either the first backsheet layer and/or the second backsheet layer may include breathable materials which permit vapors to escape from the pull-on garment while still preventing exudates from passing through the backsheet.
- Suitable breathable materials may include materials such as woven webs, nonwoven webs, composite materials such as film-coated nonwoven webs, microporous films such as manufactured by Mitsui Toatsu Co., of Japan under the designation ESPOIR NO and by Tredegar Corporation of Richmond, VA and sold under the designation EXAIRE, and monolithic films such as manufactured by Clopay Corporation, Cincinnati, OH under the name HYTREL blend P18-3097.
- Some breathable composite materials are described in greater detail in PCT Application No. WO 95/16746; U.S. Patent No. 5,938,648; U.S. Patent No. 5,865,823; and U.S. Patent No. 5,571,096.
- the backsheet may be elastically extensible in one or more directions.
- the backsheet may comprise a structural elastic-like film ("SELF") web.
- a structural elastic-like film web is an extensible material that exhibits an elastic-like behavior in the direction of elongation without the use of added elastic materials and is described in more detail in U.S. Patent No. 5,518,801.
- the backsheet may comprise elastic films, foams, strands, or combinations of these or other suitable materials with nonwovens or synthetic films.
- a suitable absorbent core for use in the present invention may comprise any absorbent material which is generally compressible, conformable, non-irritating to the wearer's skin, and capable of absorbing and retaining liquids such as urine and other certain body exudates.
- the configuration and construction of the absorbent core may also be varied (e.g., the absorbent core(s) or other absorbent structure(s) may have varying caliper zones, hydrophilic gradient(s), a superabsorbent gradient(s), or lower average density and lower average basis weight acquisition zones; or may comprise one or more layers or structures).
- Suitable exemplary absorbent structures for use as the absorbent core are described in U.S. Patent No. 4,610,678; U.S. Patent No.
- the backsheet may be joined to the topsheet, the absorbent core, or any other element of the disposable absorbent article by any attachment means known in the art.
- the attachment means may include a uniform continuous layer of adhesive, a patterned layer of adhesive, or an array of separate lines, spirals, or spots of adhesive.
- attachment means are disclosed in U.S. Patent No. 4,573,986; U.S. Patent No. 3,911,173; U.S. Patent No. 4,785,996; and U.S. Patent No. 4,842,666.
- suitable adhesives are manufactured by H. B. Fuller Company of St. Paul, Minnesota and marketed as HL-1620 and HL-1358-XZP.
- the attachment means may comprise heat bonds, pressure bonds, ultrasonic bonds, dynamic mechanical bonds, or any other suitable attachment means or combinations of these attachment means as are known in the art.
- Various sublayers may be disposed between the topsheet and the backsheet. The sublayer may be any material or structure capable of accepting, storing or immobilizing bodily exudates.
- the sublayer may include a single material or a number of materials operatively associated with each other. Further, the sublayer may be integral with another element of the pull-on disposable absorbent article or may be one or more separate elements joined directly or indirectly with one or more elements of the disposable absorbent article. Further, the sublayer may include a structure that is separate from the absorbent core or may include or be part of at least a portion of the absorbent core.
- Suitable exemplary materials for use as the sublayer may include large cell open foams, macro-porous compression resistant non woven highlofts, large size particulate forms of open and closed cell foams (macro and/or microporous), highloft nonwovens, polyolefin, polystyrene, polyurethane foams or particles, structures comprising a multiplicity of vertically oriented looped strands of fibers, absorbent core structures described above having punched holes or depressions, and the like.
- microporous refers to materials which are capable of transporting fluids by capillary action.
- a sublayer includes a mechanical fastening loop landing element, having an uncompressed thickness of about 1.5 millimeters available as XPL-7124 from the 3M Corporation of Minneapolis, Minnesota.
- Another embodiment includes a 6 denier, crimped and resin-bonded nonwoven highloft having a basis weight of 110 grams per square meter and an uncompressed thickness of 7.9 millimeters which is available from the Glit Company of Wrens, Georgia.
- Other suitable absorbent and nonabsorbent sublayers are described in U.S. Patent No. 6,680,422 and U.S. Patent No. 5,941,864.
- the sublayer, or any portion thereof may include or be coated with a lotion or other known substances to add, enhance or change the performance or other characteristics of the element.
- Embodiments of the present invention may also include pockets for receiving and containing waste, spacers which provide voids for waste, barriers for limiting the movement of waste in the article, compartments or voids which accept and contain waste materials deposited in the pull-on disposable absorbent article, and the like, or any combinations thereof.
- pockets and spacers for use in absorbent products are described in U.S. Patent No. 5,514,121; U.S. Patent No. 5,171,236; U.S. Patent No. 5,397,318; U.S. Patent No. 5,540,671; U.S. Patent No. 6,168,584; U.S. Patent No. 5,306,266; and U.S. Patent No. 5,997,520.
- compartments or voids in an absorbent article are disclosed in U.S. Patent No. 4,968,312; U.S. Patent No. 4,990,147; U.S. Patent No. 5,062,840; and U.S. Patent No. 5,269,755.
- suitable transverse barriers are described in U.S. Patent No. 5,554,142; PCT Patent WO 94/14395; and U.S. Patent No. 5,653,703.
- Examples of other structures suitable for management of low viscosity feces are disclosed in U.S. Patent No. 5,941,864; U.S. Patent No. 5,977,430; and U.S. Patent No. 6,013,063.
- Embodiments of the present invention may include acquisition / distribution layers which can be configured to distribute moisture from a wetness event to moisture responsive members within the disposable absorbent article.
- acquisition / distribution layers are described in U.S. Patent No. 5,460,622, U.S. Patent Application Publication No. 2005/0027267, and U.S. Patent Application Publication No. 2005/009173.
- Embodiments of the present invention may include a dusting layer which is well known in the art. Examples of suitable dusting layers are discussed in U.S. Patent No. 4,888,231.
- width of the sample is defined as dimension 491 and length is defined as dimension 490 according to Figure IB.
- Specimen A determines and mark the proximal edge of the stiffening element at HOB.
- marks can be placed 1 mm apart along the width of the stretch region where the HOC boundary is suspected to be.
- gently ⁇ 20 gf
- pull 1 cm segments along that edge to detect the boundary where the marks remain at 1 mm and where they spread apart.
- Using a scalpel cut a strip 2.54 mm long 490 from the center of specimen that extends its entire width 491.
- the force at the desired % elongation is calculated by the software from the resulting force/elongation curves. Results are calculated as Force in Newtons at the target elongation divided by the length (direction 490) of the specimen in mm, and reported to the nearest 0.01 N/mm.
- Stiffness is measured using a constant rate of extension tensile tester with computer interface (a suitable instrument is a MTS Alliance under TestWorks 4 software, as available from MTS Systems Corp., Eden Prairie, Minnesota) fitted with a 10 N load cell.
- a plunger blade 2100 shown in Figure 6A (front view) and Figure 6B (side view), is used for the upper movable test fixture.
- Base support platforms 2200 shown in Figure 6, are used as the lower stationary test fixture. All testing is performed in a conditioned room maintained at about 23 0 C ⁇ 2 0 C and about 50% ⁇ 2% relative humidity.
- width of the sample is defined as dimension 491 and length is defined as dimension 490 according to Figure IB.
- Components of the plunger 2100 are made of a light weight material such as aluminum to maximize the available load cell capacity.
- the shaft 2101 is machined to fit the tensile tester and has a locking collar 2102 to stabilize the plunger and maintain alignment orthogonal to base support platforms 2204.
- the blade 2103 is 115 mm long 2108 by 65mm high 2107 by 3.25 mm wide 2109, and has a material contact edge with a continuous radius of 1.625 mm.
- the bracket 2104 is fitted with set screws 2105 that are used to level the blade and a main set screw 2106 to firmly hold it in place after adjustment.
- the bottom fixture 2200 is attached to the tensile tester with the shaft 2201 and locking collar 2202.
- Two movable support platforms 2204 are mounted on a rail 2203.
- Each test surface 2205 is 85 mm wide 2206 by 115 mm long (into plane of drawing) and made of polished stainless steel so as to have a minimal coefficient of friction.
- Each platform has a digital position monitor 2208 which reads the individual platform positions, and set screws 2207 to lock their position after adjustment.
- the two platforms 2204 are square at the gap edge and the plate edges should be parallel front to back.
- the two platforms form a gap 2209 with an adjustable gap width 2210.
- the exposed edges of the stiffening element are measured under a tension of 1.5 N/cm and 4.0 N/cm.
- the fastening member 100 (see Figure 8) is carefully removed from the article either by cutting or using a freezing spray (such as Cytofreeze) to peel the intact member from the article.
- a total of five fastening members are tested and results are reported as an average of the replicates. All samples are preconditioned at about 23 0 C ⁇ 2 0 C and about 50% ⁇ 2% relative humidity for 24 hours prior to testing.
- width of the sample is defined as dimension 491 and length is defined as dimension 490 according to Figure 8.
- the test stand consists of a laboratory ring stand with an attached horizontal cross bar, two mechanical clamps, 1051 and 1061 to grip the sample, and hanging weights 1063 to apply the specified forces.
- the clamps are at least 5 mm wider than the length 122 of the fastening member and exert sufficient grip strength so that the sample does not slip in either clamp under the applied force.
- the upper clamp is mounted onto the cross bar and oriented such that the sample can be hung vertically without obstruction.
- the lower clamp allows the hanging of weights from the sample to provide the specified forces.
- Wl (g) [0.15 N/mm x Fl (mm) x 101.97 g/N] - Cl (g)
- R4 L2 / Fl x 100
- R5 Ul / El x 100
- R6 U2 / El x 100
- R7 Ll / El x 100
- R8 L2 / El x 100
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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CA2634922A CA2634922C (en) | 2005-12-22 | 2006-12-19 | Fasteners having improved comfort |
JP2008545247A JP2009519090A (en) | 2005-12-22 | 2006-12-19 | Fasteners with improved comfort |
AU2006327573A AU2006327573B2 (en) | 2005-12-22 | 2006-12-19 | Fasteners having improved comfort |
EP06842605.5A EP1968518B1 (en) | 2005-12-22 | 2006-12-19 | Fasteners having improved comfort |
BRPI0620314-0A BRPI0620314A2 (en) | 2005-12-22 | 2006-12-19 | zips with optimized comfort |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US75283805P | 2005-12-22 | 2005-12-22 | |
US60/752,838 | 2005-12-22 |
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WO2007072421A1 true WO2007072421A1 (en) | 2007-06-28 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/IB2006/054947 WO2007072421A1 (en) | 2005-12-22 | 2006-12-19 | Fasteners having improved comfort |
Country Status (12)
Country | Link |
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US (6) | US7870652B2 (en) |
EP (1) | EP1968518B1 (en) |
JP (1) | JP2009519090A (en) |
CN (1) | CN101346119A (en) |
AR (1) | AR061403A1 (en) |
AU (1) | AU2006327573B2 (en) |
BR (1) | BRPI0620314A2 (en) |
CA (2) | CA2750860C (en) |
CL (1) | CL2006003645A1 (en) |
RU (1) | RU2401019C2 (en) |
WO (1) | WO2007072421A1 (en) |
ZA (1) | ZA200804821B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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2006
- 2006-12-14 US US11/638,748 patent/US7870652B2/en active Active
- 2006-12-19 JP JP2008545247A patent/JP2009519090A/en active Pending
- 2006-12-19 CN CNA2006800486051A patent/CN101346119A/en active Pending
- 2006-12-19 RU RU2008118276/12A patent/RU2401019C2/en not_active IP Right Cessation
- 2006-12-19 WO PCT/IB2006/054947 patent/WO2007072421A1/en active Application Filing
- 2006-12-19 AU AU2006327573A patent/AU2006327573B2/en not_active Ceased
- 2006-12-19 CA CA2750860A patent/CA2750860C/en not_active Expired - Fee Related
- 2006-12-19 CA CA2634922A patent/CA2634922C/en not_active Expired - Fee Related
- 2006-12-19 EP EP06842605.5A patent/EP1968518B1/en active Active
- 2006-12-19 BR BRPI0620314-0A patent/BRPI0620314A2/en not_active IP Right Cessation
- 2006-12-20 AR ARP060105682A patent/AR061403A1/en not_active Application Discontinuation
- 2006-12-21 CL CL200603645A patent/CL2006003645A1/en unknown
-
2008
- 2008-06-03 ZA ZA200804821A patent/ZA200804821B/en unknown
-
2010
- 2010-11-15 US US12/946,121 patent/US9241847B2/en active Active
- 2010-11-15 US US12/946,140 patent/US9241848B2/en active Active
-
2015
- 2015-12-18 US US14/973,787 patent/US9375362B2/en active Active
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2016
- 2016-05-24 US US15/162,664 patent/US9622925B2/en active Active
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2017
- 2017-03-10 US US15/455,714 patent/US9877881B2/en active Active
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KR101871130B1 (en) * | 2009-03-23 | 2018-06-25 | 아플릭스 | Resilient laminate and reinforced nonwoven fabric |
JP2012521239A (en) * | 2009-03-23 | 2012-09-13 | アプリックス | Elastic laminate and reinforced nonwoven |
JP2016073827A (en) * | 2009-03-23 | 2016-05-12 | アプリックスAplix | Resilient laminate and reinforced nonwoven fabric |
JP2014138889A (en) * | 2009-05-04 | 2014-07-31 | Procter & Gamble Co | Wearable article with highly extensible fastening member having stress distribution features |
JP2012524645A (en) * | 2009-05-04 | 2012-10-18 | ザ プロクター アンド ギャンブル カンパニー | Wearable article provided with a highly extensible fastening member having a stress distribution function |
US9610202B2 (en) | 2009-06-04 | 2017-04-04 | The Procter & Gamble Company | Disposable absorbent article having a frangible bonding agent |
US8672913B2 (en) | 2009-06-04 | 2014-03-18 | The Procter & Gamble Company | Disposable absorbent article having a frangible bonding agent |
US8741086B2 (en) | 2009-06-04 | 2014-06-03 | The Procter & Gamble Company | Method for maintaining a fastener in a folded configuration |
US8753467B2 (en) | 2009-06-04 | 2014-06-17 | The Procter & Gamble Company | Method for maintaining a fastener in a folded configuration |
US8454571B2 (en) | 2009-06-04 | 2013-06-04 | The Procter & Gamble Company | Disposable absorbent article having a frangible bonding agent |
US9144963B2 (en) | 2009-06-04 | 2015-09-29 | The Procter & Gamble Company | Method for maintaining a fastener in a folded configuration |
WO2010141819A1 (en) | 2009-06-04 | 2010-12-09 | The Procter & Gamble Company | Disposable absorbent article having a frangible bonding agent |
US9770893B2 (en) | 2009-06-04 | 2017-09-26 | The Procter & Gamble Company | Method for maintaining a fastener in a folded configuration |
US10322041B2 (en) | 2009-06-04 | 2019-06-18 | The Procter And Gamble Company | Disposable absorbent article having a frangible bonding agent |
WO2011022344A1 (en) | 2009-08-20 | 2011-02-24 | The Procter & Gamble Company | Method for maintaining a fastener in a folded configuration |
JP2013507200A (en) * | 2009-10-15 | 2013-03-04 | ザ プロクター アンド ギャンブル カンパニー | Wearable article comprising an extensible fastening member having a stress distribution function and / or a fastening connection performance characteristic |
Also Published As
Publication number | Publication date |
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BRPI0620314A2 (en) | 2011-11-08 |
EP1968518A1 (en) | 2008-09-17 |
RU2401019C2 (en) | 2010-10-10 |
AU2006327573A1 (en) | 2007-06-28 |
CA2750860A1 (en) | 2007-06-28 |
CA2634922C (en) | 2011-09-27 |
US20160262959A1 (en) | 2016-09-15 |
EP1968518B1 (en) | 2017-06-14 |
AR061403A1 (en) | 2008-08-27 |
CA2750860C (en) | 2012-08-07 |
US9241848B2 (en) | 2016-01-26 |
ZA200804821B (en) | 2009-06-24 |
US20170181904A1 (en) | 2017-06-29 |
US20160100998A1 (en) | 2016-04-14 |
US20070157441A1 (en) | 2007-07-12 |
US20110056052A1 (en) | 2011-03-10 |
US9241847B2 (en) | 2016-01-26 |
AU2006327573B2 (en) | 2011-10-20 |
US9375362B2 (en) | 2016-06-28 |
CA2634922A1 (en) | 2007-06-28 |
RU2008118276A (en) | 2010-01-27 |
CN101346119A (en) | 2009-01-14 |
JP2009519090A (en) | 2009-05-14 |
US9877881B2 (en) | 2018-01-30 |
US7870652B2 (en) | 2011-01-18 |
US20110056053A1 (en) | 2011-03-10 |
US9622925B2 (en) | 2017-04-18 |
CL2006003645A1 (en) | 2008-10-24 |
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