Needled Or Punched Layer Patents (Class 604/383)
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Publication number: 20110125121Abstract: The present invention aims to provide an absorbent article with a barrier sheet preventing body waste from coming in contact with a wearer's skin and thereby to alleviate skin trouble such as eczema the wearer might suffer from. The article includes an absorbent chassis, a barrier sheet and a leak-barrier cuffs. An absorbent panel is disposed on the inner surface of the chassis, the barrier sheet is disposed above the absorbent panel and the leak-barrier cuffs are disposed along a lateral side of the barrier sheet. The barrier sheet has lateral zones a middle zone connecting the lateral zones, and front and rear through-holes defined by the lateral zones and the middle zone. Barrier sheet elastic members are provided along the lateral zones. Folds are formed so as to cross the middle zone in a transverse direction.Type: ApplicationFiled: August 18, 2008Publication date: May 26, 2011Applicant: UNI-CHARM CORPORATIONInventors: Reiko Nitta, Kaiyo Nakajima, Hironao Minato
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Publication number: 20110106036Abstract: The invention refers to an absorbent product including a liquid permeable apertured top sheet facing the wearer during use, and a liquid-impermeable back sheet facing away from the wearer during use, whereby longitudinally extending textile-like edges are positioned on both longitudinal sides of the top sheet whereby the textile-like edges comprise apertures. Hereby, the textile-like edges will amongst others have the capacity to transport moisture that is formed at the interface between the textile-like edges and the wearer skin. Further, the apertures will allow a certain acquisition, i.e., liquid can be transported to the absorbent structure of the product.Type: ApplicationFiled: December 16, 2005Publication date: May 5, 2011Applicant: SCA Hygiene Products ABInventors: Shadi Yazarloo Ståhl, Patrik Andersson, Kent Hermansson, Elisabeth Boissier
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Patent number: 7919669Abstract: A disposable absorbent article worn about the lower torso of a wearer includes at least one pair of side panels connecting a first waist region to a second waist region forming a waist opening and a pair of leg openings. Each side panel includes a waist region, a hip region and a leg region wherein the waist region, the hip region and the leg region differs structurally, functionally and visually to provide an improved initial fit and sustained fit while exhibiting a garment-like appearance.Type: GrantFiled: August 28, 2008Date of Patent: April 5, 2011Assignee: The Procter & Gamble CompanyInventors: Donald Carroll Roe, Barry Robert Feist, Krista Beth Comstock, Lisa Jane Goodlander
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Patent number: 7914812Abstract: A wound care dressing is disclosed. The wound care dressing comprises one or more nonwoven blankets, where each nonwoven blanket comprises a plurality of fibers, where each of the plurality of fibers are formed from one or more saccharides in optional combination with one or more medicaments. The invention further comprises a method to treat wounds using the wound care dressing as a transcutaneous pulsatile drug delivery system that may be used externally (e.g. skin, bones, cartilage, and organs) or internally (e.g. internal surface of a blood vessel).Type: GrantFiled: September 19, 2005Date of Patent: March 29, 2011Inventor: David M. Dixon
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Publication number: 20110034895Abstract: Absorbent article, wherein a liquid acquisition/distribution region comprises an evaporation barrier, such as an apertured film and thus exhibits reduced evaporation away from the article in the direction towards the wearer.Type: ApplicationFiled: September 27, 2010Publication date: February 10, 2011Inventors: Mattias Schmidt, Cornelia Sprengard-Eichel, Bruno Johannes Ehrnsperger
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Publication number: 20110034893Abstract: A reusable absorbent article includes a hydrophilic top layer, a soaking layer adjacent to and beneath the top layer, a substantially liquid impermeable layer adjacent to and beneath the soaking layer, and a backing layer adjacent to and beneath the substantially liquid impermeable layer. All of the layers are secured together to form a unitary structure. The soaking layer is a non-woven fabric having a plurality of hydrophobic fibers of a generally circular cross-sectional shape and a plurality of hydrophilic fibers of a non-circular cross-sectional shape.Type: ApplicationFiled: August 3, 2010Publication date: February 10, 2011Applicant: HARBOR LINEN, LLCInventors: David M. WAXMAN, Shih-Kuang LIEN
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Publication number: 20110028929Abstract: A system for visually identifying the performance level of feminine care pads comprises a first feminine care pad and a second feminine care pad, each having a body-facing surface, a garment-facing surface, and a printed pattern that is visible to a user on at least one of the body-facing surface or the garment-facing surface. The first feminine care pad and the second feminine care pad are related. The second feminine care pad has a higher absorbent capacity level than the first feminine care pad. In addition, the total printed surface area of the printed pattern of the second feminine care pad is greater than the total printed surface area of the printed pattern of the first feminine care pad.Type: ApplicationFiled: December 23, 2009Publication date: February 3, 2011Inventors: Heidi Bauerlein Hopkins, Adrienne Rae Loyd, Suzanne K. Sullivan, Katie Ann Boland
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Patent number: 7872169Abstract: A non-elastic thermoplastic film having a noise abatement region and a fastening component. The noise abatement region has a plurality of apertures, wherein each of the plurality of apertures has an area of between about 4 mm2 to about 75 mm2. The fastening component is disposed within the noise abatement region such that the fastening component is surrounded by the noise abatement elements.Type: GrantFiled: December 14, 2006Date of Patent: January 18, 2011Assignee: The Procter & Gamble CompanyInventors: Oscar Antonio Ruiz, John Carroll Molander
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Publication number: 20110009842Abstract: The present invention aims to provide an absorbent article to prevent stuffiness generated between a barrier sheet and a wearer's skin and thereby to prevent eczema due to such stuffiness. An absorbent article including a chassis and a barrier sheet. The barrier sheet has a pair of lateral zones opposed to each other in a transverse direction and a middle zone connecting the lateral zones and the middle zones lies on a crotch region. Front and rear through-holes, are defined by the lateral zones and the middle zone. The lateral zones lying outside the middle zone as viewed in the transverse direction are partially cutaway to form notches. The notches are formed by the lateral zones.Type: ApplicationFiled: August 18, 2008Publication date: January 13, 2011Applicant: UNI-CHARM CORPORATIONInventors: Hironao Minato, Kaiyo Nakajima, Ryuichi Kamiyama, Reiko Nitta
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Patent number: 7863498Abstract: A disposable absorbent article worn about the lower torso of a wearer includes at least one pair of side panels connecting a first waist region to a second waist region forming a waist opening and a pair of leg openings. Each side panel includes a waist region, a hip region and a leg region wherein the waist region, the hip region and the leg region differs structurally, functionally and visually to provide an improved initial fit and sustained fit while exhibiting a garment-like appearance.Type: GrantFiled: August 28, 2008Date of Patent: January 4, 2011Assignee: The Procter & Gamble CompanyInventors: Donald Carroll Roe, Barry Robert Feist, Krista Beth Comstock, Lisa Jane Goodlander
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Patent number: 7858842Abstract: Disclosed is an absorbent article including a liquid absorbent layer for absorption and retention of liquid and a liquid passage layer located on a liquid-receiving side of the liquid absorbent layer. The liquid passage layer includes a first passage layer and a second passage layer disposed between the first passage layer and the liquid absorbent layer. The first passage layer and the second passage layer are resin films formed with a plurality of liquid passage apertures. The individual liquid passage apertures are defined by a peripheral wall projecting toward the liquid absorbent layer to provide the first passage layer and the second passage layer with thicknesses greater than a thickness of the resin film itself. Under a load in a thickness direction, the second passage layer has a greater compressibility than the first passage layer.Type: GrantFiled: April 14, 2005Date of Patent: December 28, 2010Assignee: Uni-Charm CorporationInventors: Shimpei Komatsu, Tatsuya Tamura, Satoshi Mizutani
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Patent number: 7857797Abstract: Disclosed is a sanitary napkin including a liquid absorbent layer and a liquid-permeable topsheet covering a body surface of the liquid absorbent layer. The topsheet is joined to the liquid absorbent layer in a specific pattern. The pattern includes longitudinal join lines which extend longitudinally and are laterally spaced from each other and a connecting join line which connects the longitudinal join lines. The liquid absorbent layer has a low stiffness portion in a region enclosed by the longitudinal join lines and the connecting join line. The liquid absorbent layer has a lower stiffness in the low stiffness portion than in portions outside the longitudinal join lines.Type: GrantFiled: August 16, 2005Date of Patent: December 28, 2010Assignee: Uni-Charm CorporationInventors: Jun Kudo, Takuya Miyama
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Patent number: 7855316Abstract: An elastic laminate having an expandable facing layer, e.g., a nonwoven web with off-axis perforations, and an elastic film layer is produced to provide a preferential direction of extendability and retraction in the laminate. The elastic laminate is particularly useful as a waist area panel in disposable pant-like garments.Type: GrantFiled: December 20, 2002Date of Patent: December 21, 2010Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Stephen C. Meyer, Alvin C. Jalonen, Susan L. Bronk, Prasad Shrikrishna Potnis, Sjon-Paul Lee Conyer
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Patent number: 7838725Abstract: A dispersible absorbent product having a mechanically weakened multi-layered structure, which comprises at least two mechanically weakened layers joined by a water responsive binder. The mechanically weakened regions enhance the dispersibility of the product in a standard toilet. Additionally, the dispersible absorbent products may be pre-moistened with a composition. The pre-moistened products are stable in storage, easily dispersible down a toilet, and deliver cleaning, conditioning, and like benefits. Methods of making such dispersible absorbent products are also disclosed.Type: GrantFiled: April 17, 2002Date of Patent: November 23, 2010Assignee: The Procter & Gamble CompanyInventors: Isao Noda, Sarah Beth Gross, Hugh Joseph O'Donnell
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Patent number: 7825290Abstract: Absorbent article, wherein a liquid acquisition/distribution region comprises an evaporation barrier, such as an apertured film and thus exhibits reduced evaporation away from the article in the direction towards the wearer.Type: GrantFiled: December 18, 2002Date of Patent: November 2, 2010Assignee: The Procter & Gamble CompanyInventors: Mattias Schmidt, Cornelia Sprengard-Eichel, Bruno Johannes Ehrnsperger
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Patent number: 7820875Abstract: Absorbent articles having a liquid permeable topsheet, a liquid impermeable backsheet, and an absorbent core disposed between said topsheet and said backsheet are disclosed. The backsheet has a physical variation along at least one axis, wherein said physical variation defines a first backsheet zone and a second backsheet zone, and at least one elastomeric element having at least one primary direction of stretch, said elastomeric element at least partially overlapping and joined to first and/or second backsheet zone, wherein a relaxed pathlength of said elastomeric element in the primary direction of stretch is less than a total pathlength of said backsheet in the region of overlap. The physical variation is a measurable difference as measured by a physical property selected from the group consisting of basis weight, thickness and density.Type: GrantFiled: March 29, 2004Date of Patent: October 26, 2010Assignee: The Procter & Gamble CompanyInventors: Donald Carroll Roe, Pankaj Nigam, Mark James Kline, Jeromy Thomas Raycheck, Carl Louis Bergman
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Patent number: 7812213Abstract: An absorbent article having a liquid-permeable cover sheet, a liquid-impermeable cover sheet, and an absorption body arranged between the cover sheets. The article defines a longitudinal direction, a front portion in the longitudinal direction, and a rear portion in the longitudinal direction. The upper cover sheet, together with an underlying wadding material, defines a laminate which, at least in the rear portion, is designed with at least one through-slit which defines an opening for passage of bodily excretions through the slit, and the slit is surrounded by binding areas which, together with a resilient action of the wadding material, define a raised area on the surface of the article.Type: GrantFiled: December 28, 2004Date of Patent: October 12, 2010Assignee: SCA Hygiene Products ABInventors: Anna-Gerd Doverbo, Robert Kling
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Patent number: 7807861Abstract: Absorbent articles such as disposable diapers, incontinent briefs, diaper holders, training pants, and the like, that provide dynamic fit about the wearer by the use of extensible, outwardly extending side panels. The side panel includes at least one discontinuity for dividing the tensile force extending the side panel into a waist-directing force and a leg-directing force. The waist-directing force is transmitted by the side panel to the waist area of the article to maintain the waist area in a snug, but comfortable, fit against the waist of the wearer. The leg-directing force is transmitted by the side panel to the leg cuff area of the article to prevent leakage between the leg cuff and the wearer's leg.Type: GrantFiled: January 25, 2007Date of Patent: October 5, 2010Assignee: The Procter & Gamble CompanyInventors: John Carroll Molander, Larry Kenneth Johnson
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Patent number: 7794440Abstract: The present invention relates to a disposable absorbent article, such as a diaper, training pants, adult incontinence article, having a specific topsheet with an opening to receive bowel movement waste (BM) and which is such that it masks the waste present underneath said topsheet. The topsheet is air permeable and it has a uniform pore size distribution with small pores only and it has a low surface energy and therefore an alcohol repellency of at least 7, typically at least 9 or even preferably 10.Type: GrantFiled: November 7, 2003Date of Patent: September 14, 2010Assignee: The Procter & Gamble CompanyInventors: Anja Schuehle (Née Hoffmann), Joerg Mueller, Heike Opper, Georg Pescher, Mattias Schmidt
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Publication number: 20100228213Abstract: An absorbent article such as a diaper, panty diaper, panty liner, sanitary napkin or incontinence protection, wherein at least one part of this absorbent article has a pattern of at least one hydrophilic and at least one hydrophobic region wherein the at least one hydrophilic region and/or the at least one hydrophobic region are present as a coating on the part of the absorbent article. The coated part is preferably a liquid-permeable topsheet.Type: ApplicationFiled: October 5, 2005Publication date: September 9, 2010Inventors: Carolyn Berland, Shabira Abbas
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Patent number: 7758947Abstract: An apertured material comprising a web and a plurality of apertures in the web, each aperture having at least two vertices with a convex flap of the web spanning a pair of the vertices.Type: GrantFiled: December 6, 2006Date of Patent: July 20, 2010Assignee: Tredegar Film Products CorporationInventors: Andrew D. Maschino, Paul E. Thomas
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Publication number: 20100168707Abstract: An absorptive article that has increased flexibility and in which separation of a sheet is prevented. The absorptive article that is longer than is wide has a front surface sheet at least a portion of which is liquid pervious, e liquid impervious rear surface sheet, an absorptive body having liquid retaining properties and placed between the front and rear surface sheets, two side sheets arranged on both sides of the absorptive body such that at least a part of each of the two side sheets covers the front surface sheet, and embossed sections having compressed sections respectively formed along the two side sheets. The embossed sections are each composed of first embossed sections formed on the front edge side and the rear edge side of the absorptive article that are end sections in the longitudinal direction of the absorptive article, and of a second embossed section formed at the center in the longitudinal direction of the absorptive article.Type: ApplicationFiled: May 21, 2008Publication date: July 1, 2010Inventors: Kumiko Nishikawa, Yuki Noda, Kenichiro Kuroda
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Patent number: 7737323Abstract: An absorbent article is provided which has such a structure that a bled portion of the colored indicator is unnoticeable. The absorbent article includes a liquid permeable top sheet, a liquid impermeable back sheet, an absorbing core interposed between the two sheets, and an indicator making it possible to visually ascertain that the absorbing core is in the wet state. The back sheet has an average hole diameter of 0.3 ?m to 3 ?m, and has a light transmittance of not less than 20% and not more than 45% in a state in which the absorbing core is dry.Type: GrantFiled: September 21, 2006Date of Patent: June 15, 2010Assignee: Uni-Charm CorporationInventors: Kazunari Isogai, Tomoko Sugito
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Patent number: 7727212Abstract: An absorbent article worn in the groin area, in which, when a compressive force is received from a lateral direction, a main absorbent region can oppose an excretion area of a wearer's body without twists or wrinkles occurring, and when the compressive force is relaxed, the article easily recovers to its original shape. An absorbent body provided in the absorbent article has a main absorbent region, reinforcing regions, and buffer regions. The bending stiffness of the reinforcing regions and the main absorbent region is larger than that of the buffer regions. When compressive force is received from a wearer's thigh areas in the lateral direction, the reinforcing regions that are positioned to the left and right deform in a curved shape, and the buffer regions that are to the left and right are compressed. The main absorbent region does not easily deform, and maintains a tight fit.Type: GrantFiled: June 12, 2006Date of Patent: June 1, 2010Assignee: Uni-Charm CorporationInventors: Akane Sakai, Wataru Yoshimasa, Kazuya Nishitani, Satoshi Mizutani
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Patent number: 7722588Abstract: A multilayered apertured film wrapping element for an absorbent article is disclosed. At least one outer layer of the fluid-impervious plastic material has a continuous phase of a thermoplastic polymeric component and an immiscible, dispersed phase of a thermoplastic polymeric component having a lower melting point. The wrapping element is useful in applications involving heat sealing and similar thermal processes in absorbent articles, such as sanitary napkins, diapers, bandages, tampons, and the like.Type: GrantFiled: June 30, 1999Date of Patent: May 25, 2010Assignee: McNeil-PPC, Inc.Inventors: Bruce C. Johnson, Judith Roller
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Patent number: 7722589Abstract: A stretch activated disposable article, such as a wipe or mitt, includes an upper material layer, and a lower material layer joined to the upper material layer such that a space is defined between the material layers. A functional element, for example a fluid composition, is stored in the space between the upper and lower material layers and becomes functional upon being exposed through the upper material layer with use of the article. The upper material layer includes a plurality of materially weakened positions along the surface thereof that are configured to part or separate upon stretching of the upper material layer to expose the functional element through the upper material layer.Type: GrantFiled: August 31, 2005Date of Patent: May 25, 2010Assignee: Kimberly-Clark Worldwide, Inc.Inventors: James R. Fitts, Jr., Janis W. Hughes, Bryon P. Day, Ann L. McCormack, Wing-Chak Ng, Varunesh Sharma
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Publication number: 20100100065Abstract: An absorbent element for the absorption of body fluids in sanitary articles comprises a first layer of sheet material presenting an array of hollowed formations (16) with respective mouth parts, as well as masses (18) of superabsorbent material that is able to expand as a result of the absorption of body fluid, which are set in the aforesaid hollowed formations (16). A second layer of sheet material (12) is applied on the first layer of sheet material (10) so as to cover the mouth parts of the hollowed formations (16). At least one of the layers of sheet material (10, 12) is permeable to body fluids to enable the body fluids themselves to penetrate into the hollowed formations and be absorbed by the masses of superabsorbent material (18) that expand in the hollowed formations (16), creating a first level of absorption of body fluids.Type: ApplicationFiled: December 3, 2007Publication date: April 22, 2010Inventors: Carlo Bianco, Domenico Polidori, Tonino De Angelis
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Patent number: 7695799Abstract: A perforated laminate comprising at least first and second layers and apertures extending through at least the first layer. The first layer is a nonwoven or formed film material, and the second layer comprises an absorbent structure. The at least first and second layers are primarily joined at the periphery of the perforated apertures. The laminate is particularly useful as a topsheet for an absorbent article, such as a disposable diaper or sanitary napkin. Also described are various materials and methods used to create such laminates.Type: GrantFiled: August 29, 2006Date of Patent: April 13, 2010Assignee: Advantage Creation Enterprise LLCInventor: James W. Cree
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Patent number: 7674949Abstract: absorbent article comprising a liquid transfer layer (5) positioned between a liquid pervious bodyside liner (6) and an absorbent core (2). The liner (6) comprises a plurality of perforations (7). The liner and the transfer layer are bonded together in a plurality of bonding sites (11) covering an area of between 0.5% and 11% of the area of the liner (6) that is circumscribed by the bonding sites and wherein each bonding site has an area of no more than 13 mm2. The combined perforated liner (6) and transfer layer (5) provides a quick inlet of liquid and a low rewet against the wearer. The liner (6) has a three-dimensional structure of alternating raised and depressed regions and the perforations (7) are present in the bottoms of the depressions (8) of said liner as seen from the body facing side of the liner.Type: GrantFiled: March 3, 2006Date of Patent: March 9, 2010Assignee: SCA Hygiene Products ABInventors: Johan Wahlstrom, Bror-Inge Helmfridsson, Ken Olsson, Patrik Andersson, Anne Farbrot
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Patent number: 7662460Abstract: A flexible absorbent sheet material containing an acidic water-absorbing resin, a basic water-absorbing resin, and a plasticizer, and its method of manufacture, are disclosed. The sheets contain about 60% to 100% by weight of the acidic and basic water-absorbent resin and plasticizer. The absorbent sheets have unexpected flexibility and structural integrity, while exhibiting exceptional water absorption and retention properties.Type: GrantFiled: April 29, 2003Date of Patent: February 16, 2010Inventors: Norbert Herfert, Michael A. Mitchell, Friedrich Engelhardt
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Patent number: 7662136Abstract: A disposable absorbent article having a liner, an outer cover and an absorbent body therebetween for absorbing liquid body waste penetrating the liner. In one embodiment, the absorbent body has an inner layer and an outer layer. The inner layer has a lower absorbent capacity per unit weight than the outer layer. A flow control layer between the inner layer and the outer layer at least retards the flow of liquid body waste from the inner layer to the outer layer to facilitate a prolonged feeling of wetness to the wearer. In another embodiment, a surge layer lies between the liner and an absorbent body. A flow control layer between the liner and the surge layer, or between the surge layer and the absorbent body, at least retards the flow of liquid body waste through the surge layer toward the absorbent body.Type: GrantFiled: October 18, 2004Date of Patent: February 16, 2010Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Richard L. Underhill, Michael J. Niemeyer, Marianne K. Leick
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Patent number: 7612249Abstract: A disposable absorbent article has a liner, an outer cover and an absorbent body therebetween for absorbing liquid body waste penetrating the liner. A flow control layer having lateral side edges is positioned between the liner and the absorbent body, with at least a portion of each lateral side edge of the flow control layer spaced laterally inward from lateral side edges of the absorbent body. The flow control layer is at least in part liquid impermeable to retard the flow of liquid body waste penetrating the liner toward the absorbent body whereby at least a portion of the liquid body waste that penetrates the liner is directed by the flow control layer to migrate laterally outward toward the lateral side edges of the flow control layer for subsequent flow around the flow control layer toward the absorbent body.Type: GrantFiled: May 28, 2004Date of Patent: November 3, 2009Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Richard L. Underhill, Michael J. Niemeyer, Marianne K. Leick
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Patent number: 7604623Abstract: A fluid applicator device includes a cover layer and a pouch positioned adjacent a back side of said cover layer. A fluid composition is contained within the pouch. Exit structure is configured at a location on the pouch and is adjacent to the cover layer. The exit structure is in isolated fluid communication with a defined portion of the cover layer that is permeable to the fluid composition within the defined portion such that the fluid composition released from the pouch migrates through the cover layer only within the defined portion.Type: GrantFiled: August 30, 2005Date of Patent: October 20, 2009Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Michael S. Brunner, Cecelia M. Berger Sharp, Tamara L. Mace
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Patent number: 7604624Abstract: A disposable absorbent article and method of forming the article are disclosed. The article has front and back panels, each having first and second zones. The first zone of each panel is extensible and retractable and the second zone of each panel is non-extensible and non-retractable. Each of the front and back panels has first and second side edges. An absorbent assembly is secured to the front and back panels. The absorbent assembly has a first end secured to the second zone of the front panel and a second end secured to the second zone of the back panel. The absorbent assembly is capable of being folded to enable the front panel to align with the back panel, respectively. A pair of seams join the front and back panels together to form a disposable absorbent article having a waist opening and a pair of leg openings.Type: GrantFiled: May 30, 2003Date of Patent: October 20, 2009Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Jerome Steven Veith, Paul VanGompel
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Publication number: 20090259207Abstract: The present invention relates to an interlabial pad that is worn by female wearers, placed in intimate contact and supported between the labia, which provides an interlabial pad that causes no discomfort to the female wearer in the body motions of the wearer. The interlabial pad of the present invention is characterized by having bending elements which allows the interlabial pad to follow the changes in form flexibly even when a force is exerted on the interlabial pad by the wearer's body motion.Type: ApplicationFiled: June 19, 2009Publication date: October 15, 2009Applicant: Uni-Charm CorporationInventors: Satoshi Mizutani, Koichi Yamaki, Yuki Noda, Megumi Tokumoto, Akane Sakai
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Publication number: 20090259208Abstract: A nonwoven fabric comprising at least 50% by weight microfibers having a fineness of 1.0 dtex or less and a length of at least 30 mm and having been combined by hydroentangling. The fabric is apertured by said hydroentangling, and has been carded before hydroentangling. The fabric may be used as a topsheet material on an absorbent article.Type: ApplicationFiled: March 30, 2006Publication date: October 15, 2009Applicant: SCA HYGIENE PRODUCTS ABInventors: Jeanette Hellstrom, Ulrika Persson, Niclas Horle
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Patent number: 7598428Abstract: An absorbent article having a first liquid permeable surface layer, a essentially liquid impermeable backing layer and, located between said liquid permeable surface layer and said liquid impermeable backing layer, an absorbent body having at least one layer. The absorbent article has cavities which are essentially cone-shaped and extend at least through part of the absorbent body, said cavities having a tip part and a base, the tip part being located towards or in the liquid permeable surface layer and the base being located away from the liquid permeable surface layer. A method of production of an absorbent article with cone-shaped cavities is also provided.Type: GrantFiled: October 18, 2005Date of Patent: October 6, 2009Assignee: SCA Hygiene Products ABInventors: Anette Gustavsson, Solgun Drevik
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Patent number: 7589249Abstract: The invention provides an apertured web comprising multiple, discrete zones comprising arrangements of land areas and at least two apertures.Type: GrantFiled: August 13, 2002Date of Patent: September 15, 2009Assignee: McNeil-PPC, Inc.Inventors: David Gubernick, William G. F. Kelly
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Patent number: 7589251Abstract: A disposable absorbent article, such as a disposable diaper. The disposable absorbent article has a topsheet with apertures large enough for low-viscosity fecal material to pass through to a fecal material storage element. The fecal material storage element immobilizes the fecal material in position for dewatering, so that the solid components of the fecal material are separated from the liquid components of the fecal material and the liquid components can be absorbed by an absorbent core. This arrangement provides for easier cleaning of the wearer when the soiled disposable absorbent article is removed. The fecal material storage element may extend beyond one or more edges of the absorbent core.Type: GrantFiled: November 19, 2003Date of Patent: September 15, 2009Assignee: The Procter & Gamble Co.Inventor: Donald Carroll Roe
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Publication number: 20090131896Abstract: The absorbent article is sequentially provided with a surface sheet (1) facing the skin, allowing excremental liquid to permeate through it and constructed from a perforated sheet, a permeation sheet (2) allowing the excremental liquid to permeate through it, and an absorbent element (3) located on the rear surface side of the permeation sheet (2) and containing cotton-like pulp for holding the excremental liquid. Soft feces permeation speed S1 of the surface sheet (1) is higher than soft feces permeation speed S2 of the permeation sheet (2). Permeation apertures for excremental liquid are formed at least that portion of the apertured surface sheet (1) which faces an excretion section for receiving the excremental liquid and also formed at an excretion region including the portion. In the permeation apertures, an effective opening area of a single permeation aperture (H) is 3-75 mm2 and an opening area ratio is 10-80%.Type: ApplicationFiled: June 13, 2006Publication date: May 21, 2009Inventors: Keisuke Ebitsuka, Yasuo Ido, Hiroki Horii, Kazuhisa Murakami
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Patent number: 7534928Abstract: A topsheet for absorbent articles is disclosed. The topsheet is used on the side of an absorbent article to be brought into contact with a wearer's body. The topsheet has an air permeability of 10 ml/cm2·sec or more in the horizontal direction under a pressure of 10 cN/cm2. The topsheet also has an air permeability of 10 to 500 ml/cm2·sec in the horizontal direction under a pressure of 50 cN/cm2.Type: GrantFiled: August 9, 2002Date of Patent: May 19, 2009Assignee: Kao CorporationInventors: Noriko Sakamoto, Hiroko Sugiura, Yasuo Toyoshima, Shoichi Taneichi, Wataru Saka
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Patent number: 7521588Abstract: A polymeric web exhibiting a soft and silky tactile impression on at least one side thereof is disclosed. The silky feeling side of the web exhibits a pattern of discrete hair-like fibrils, each of the hair-like fibrils being a protruded extension of the web surface and having a side wall defining an open proximal portion and a closed distal portion. The hair-like fibrils exhibit a maximum lateral cross-sectional diameter of between 2 and 5 mils, and an aspect ratio from 1 to 3. Methods and apparatus for making the polymeric web utilize a three-dimensional forming structure having a plurality of protrusions being generally columnar forms having an average aspect ratio of at least about 1.Type: GrantFiled: May 12, 2005Date of Patent: April 21, 2009Assignee: The Procter & Gamble CompanyInventors: Keith Joseph Stone, Brian Francis Gray, Norman Scott Broyles, Dimitris Ioannis Collias, Yann-Per Lee
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Patent number: 7518032Abstract: A three-dimensional film for use as an acquisition distribution layer in an absorbent article comprising a first surface with drains extending downward from the first surface, the drains being capable of transmitting fluid by gravity; and protrusions extending upward from the first surface to an upper surface with at least one capillary extending downward from the upper surface, the capillaries being capable of transmitting fluid in contact with the upper surface by capillary action. The drains rapidly transmit fluid through the film, particularly fluid that is dynamically-deposited. The capillaries transmit statically-retained fluid that is in contact with the upper surface of the protrusions.Type: GrantFiled: November 14, 2006Date of Patent: April 14, 2009Assignee: Tredegar Film Products CorporationInventor: Rickey J. Seyler
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Publication number: 20080281287Abstract: A sanitary napkin adapted to provide enhanced fluid handling characteristics and minimize side leakage, the sanitary napkin including a first embossing pattern including first and second spaced portions and a second embossing pattern including first and second spaced portions.Type: ApplicationFiled: May 8, 2007Publication date: November 13, 2008Inventors: Ana Maria Elena R. Marcelo, Maria Socorro F. Medina
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Patent number: 7432413Abstract: A disposable absorbent article worn about the lower torso of a wearer includes at least one pair of side panels connecting a first waist region to a second waist region forming a waist opening and a pair of leg openings. Each side panel includes a waist region, a hip region and a leg region wherein the waist region, the hip region and the leg region differs structurally, functionally and visually to provide an improved initial fit and sustained fit while exhibiting a garment-like appearance.Type: GrantFiled: December 16, 2005Date of Patent: October 7, 2008Assignee: The Procter and Gamble CompanyInventors: Donald Carroll Roe, Barry Robert Feist, Krista Beth Comstock, Lisa Jane Goodlander
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Patent number: 7429689Abstract: An absorbent article comprising a central absorbent member and a lateral wicking barrier for inhibition of wicking from the central regions of the article to an outlying outer absorbent member. The wicking barrier has a vertical component for prevention of radial wicking in the plane of the article and thus promotes center filling of the article with fluid and reduces the likelihood of leaks from the sides of the article. The wicking barrier can also have a horizontal component to prevent leakage, redirect fluid flow, and improve fit and performance of the article. In one embodiment, the central absorbent member is a concentric absorbent structure having alternating rings of barrier material and absorbent material, including a spiral wound composite formed from a layer of barrier material wound with a layer of absorbent material and then sliced.Type: GrantFiled: September 15, 2003Date of Patent: September 30, 2008Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Fung-jou Chen, Julie M. Bednarz, Jeffrey D. Lindsay, Joseph DiPalma
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Patent number: 7402723Abstract: A polymeric web exhibiting a soft and silky tactile impression on at least one side thereof is disclosed. The silky feeling side of the web exhibits a pattern of discrete hair-like fibrils, each of the hair-like fibrils being a protruded extension of the web surface and having a side wall defining an open proximal portion and a closed distal portion. The hair-like fibrils exhibit a maximum lateral cross-sectional diameter of between 2 and 5 mils, and an aspect ratio from 1 to 3. Methods and apparatus for making the polymeric web utilize a three-dimensional forming structure having a plurality of protrusions being generally columnar forms having an average aspect ratio of at least about 1.Type: GrantFiled: December 20, 2002Date of Patent: July 22, 2008Assignee: The Procter & Gamble CompanyInventors: Keith Joseph Stone, Brian Francis Gray, Norman Scott Broyles, Dimitris Ioannis Collias, Yann-Per Lee
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Patent number: 7378568Abstract: An absorbent article having a topsheet and an absorbent core material. The acquisition distribution layer is located between the topsheet and the absorbent core material. The acquisition distribution layer is made of a three dimensional apertured film that defines a large void volume space between the acquisition distribution layer and the absorbent core material. The acquisition distribution layer provides high void volume for lateral spillage during repeated insult moments because the topsheet, which is in contact with the user, is held away from dispersing fluid that is unabsorbed by saturated core material. The void volume space provides a pathway for unabsorbed fluid to flow over the top plane of saturated core regions to unsaturated regions of the core material for absorption. The void volume space allows this migration of fluid to occur without the fluid coming into contact with the topsheet, thereby avoiding a feeling of wetness for a wearer.Type: GrantFiled: June 20, 2003Date of Patent: May 27, 2008Assignee: Tredegar Film Products CorporationInventors: Paul Eugene Thomas, Thomas Patrick Marsh
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Publication number: 20080114317Abstract: A three-dimensional film for use as an acquisition distribution layer in an absorbent article comprising a first surface with drains extending downward from the first surface, the drains being capable of transmitting fluid by gravity; and protrusions extending upward from the first surface to an upper surface with at least one capillary extending downward from the upper surface, the capillaries being capable of transmitting fluid in contact with the upper surface by capillary action. The drains rapidly transmit fluid through the film, particularly fluid that is dynamically-deposited. The capillaries transmit statically-retained fluid that is in contact with the upper surface of the protrusions.Type: ApplicationFiled: November 14, 2006Publication date: May 15, 2008Applicant: TREDEGAR FILM PRODUCTS CORPORATIONInventor: Rickey J. Seyler
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Patent number: 7329246Abstract: Here is disclosed a disposable pull-on wearing article improved so that a body fluid absorbent core may be curved about a crotch region toward front and rear waist regions without forming thick creases creating a feeling of discomfort against a wearer, and wherein a concavity bulging downward may be quickly formed in the crotch region as the core is curved. The article includes a body fluid absorbent core which includes a first core lying on a transverse middle of a crotch region and a pair of second cores lying on both sides of the first core. Front and rear end portions of the respective second cores are spaced apart from the first core by slit-like gaps and intermediate portions extending between the front and rear end portions are contiguous to the first core. Outer side edges of the respective second cores are formed with laid down V-shape cutouts.Type: GrantFiled: May 21, 2004Date of Patent: February 12, 2008Assignee: Uni-Charm CorporationInventors: Akiyoshi Kinoshita, Yoshio Ono, Tomoko Tsuji, Akiko Yagi