Containing Layers Having Differing Absorption Characteristics (e.g., Flow Control, Wicking, Etc.) Patents (Class 604/378)
  • Publication number: 20090247977
    Abstract: [Subject] To provide a body fluid absorbent article including a second sheet, which fulfills its own function, while the “sticking”, which would have been caused by the conventional second sheet, is prevented on the account of embossing. [Means for Solving Problem] A body fluid absorbent article having a face sheet 1, a body fluid permeable member 20 including an assembly of fibers in tows, a body fluid retainable absorbent element AB in this order, and a face-side second sheet 10, which is interposed between the above face sheet 1 and the above body fluid permeable member 20 with such a positional relation that the above face-side second sheet 10 is at least partly superposed on the above body fluid permeable member 20; and embossing is carried out integrally on the above face sheet 1 and the above face-side second sheet 10 while embossing is not carried out on the above body fluid permeable member 20.
    Type: Application
    Filed: June 30, 2005
    Publication date: October 1, 2009
    Inventors: Tomonari Takeuchi, Satoko Konawa, Keisuke Ebitsuka, Tomotsugu Matsui
  • Publication number: 20090247975
    Abstract: A disposable absorbent article includes two laterally opposing longitudinally extending backsheet strips attached to an exterior surface of an absorbent assembly in laterally opposing attachment zones. Each backsheet strip may include a water-impermeable layer and may be extensible. The absorbent assembly includes a lower covering sheet that is doubled by folding and thereby includes a first layer and a second layer. The absorbent assembly also includes laterally opposing side flaps which are formed by folding doubled portions of the lower covering sheet laterally inward. A longitudinally extending elastic gathering member is attached to each side flap adjacent to its proximal edge. When the article is worn, the elastic gathering members contract and raise the side flaps to form side barriers.
    Type: Application
    Filed: June 5, 2009
    Publication date: October 1, 2009
    Inventors: Gary Dean LaVon, Kevin Michael Smith
  • Patent number: 7594904
    Abstract: An absorbent article including a cover layer, a barrier layer and an absorbent system arranged between the cover layer and the barrier layer, the absorbent article being drapeable and possessing the absorbency attributes required of a sanitary napkin.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: September 29, 2009
    Assignee: McNeil-PPC, Inc.
    Inventors: Leonard G. Rosenfeld, Theresa Wysocki, Morris Yang, Marina Nikitina, John Poccia
  • Publication number: 20090240225
    Abstract: An absorbent article that by sticking to the excretory part of the wearer without slippage of sanitary napkin, prevents any leakage of excrements, such as body fluid. The absorbent article is one comprising an absorbent article main body including at least surface sheet part (2) whose at least one area is permeable for liquid, disposed on one side in the direction of the thickness of the absorbent article and liquid-retaining absorbent part (4) disposed opposite to the surface sheet part (2) on the other side in the direction of the thickness of the absorbent article, and comprising, disposed on the other side of the absorbent article main body, belt member (10) arranged so as to extend along the longitudinal direction (LD,LD) of the absorbent article main body, the absorbent article shaped substantially longitudinally long. The belt member (10) on its side of at least one end of both ends thereof in the longitudinal direction (LD,LD) is provided with locking part (9f,9r).
    Type: Application
    Filed: June 1, 2007
    Publication date: September 24, 2009
    Applicant: UNI-CHARM CORPORATION
    Inventors: Yuki Noda, Kenichiro Kuroda
  • Publication number: 20090240222
    Abstract: Multiple shape forming regions R1 each extending in a longitudinal direction of an absorbent article are formed in a top sheet in a cross direction. In each of the shape forming regions R1, a waveform including a top area T, a bottom area B, and a wall area between the top area T and the bottom area B is continuously formed in the longitudinal direction. The fiber density of the top sheet in the wall area W is set lower than the fiber density of the top sheet in the top area T or the bottom area B.
    Type: Application
    Filed: November 6, 2007
    Publication date: September 24, 2009
    Applicant: UNI-CHARM CORPORATION
    Inventors: Sugito Tomoko, Kyo Kikuchi, Jyoji Shimizu, Osamu Nakajima
  • Publication number: 20090240224
    Abstract: A disposable absorbent article has a liquid permeable liner, an outer cover, and an absorbent body disposed between the liner and the outer cover for absorbing liquid body waste. A flow control layer is disposed between the liner and the absorbent body. The flow control layer is adapted to retard the flow of liquid body waste penetrating the liner toward the absorbent body. The flow control layer has a plurality of apertures for permitting at least some of the liquid body waste that passes through the liner to flow past the flow control layer toward the absorbent body without migrating laterally outward around lateral side edges of the flow control layer.
    Type: Application
    Filed: May 28, 2009
    Publication date: September 24, 2009
    Applicant: Kimberly-Clark Worldwide, Inc.
    Inventors: Richard L. Underhill, Michael J. Niemeyer, Marianne K. Leick
  • Patent number: 7589249
    Abstract: The invention provides an apertured web comprising multiple, discrete zones comprising arrangements of land areas and at least two apertures.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: September 15, 2009
    Assignee: McNeil-PPC, Inc.
    Inventors: David Gubernick, William G. F. Kelly
  • Patent number: 7589250
    Abstract: An absorbent article having a first essentially liquid permeable surface layer (13), a backing layer (14) and, located between said liquid permeable surface layer (13) and said liquid impermeable backing layer (14), an absorbent body (15). The absorbent body has cavities (20) which are essentially cone-shaped and extend at least through part of the absorbent body (15), said cavities (20) having a tip part (21) and a base (22), the tip part (21) being located towards or in the liquid permeable surface layer (13) and the base (22) being located away from the liquid permeable surface layer (13). The inner surface of said cavities (20) is treated with at least one functional substance.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: September 15, 2009
    Assignee: SCA Hygiene Products AB
    Inventors: Solgun Drevik, Anette Gustavsson, Pontus Winqvist
  • Patent number: 7589251
    Abstract: 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: Grant
    Filed: November 19, 2003
    Date of Patent: September 15, 2009
    Assignee: The Procter & Gamble Co.
    Inventor: Donald Carroll Roe
  • Patent number: 7588822
    Abstract: A method of surface cross-linking superabsorbent polymer particles using UV irradiation is provided. The superabsorbent polymer particles for use in the method have a relatively high degree of neutralization. Brønsted acids are selectively applied onto the surface of the superabsorbent polymer particles to selectively facilitate a relatively high number of protonated carboxyl groups at the surface of the superabsorbent polymer particles while the relatively high degree of neutralization in the core of the superabsorbent polymer particles remains substantially unaffected.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: September 15, 2009
    Assignee: The Procter & Gamble Co.
    Inventors: Andreas Flohr, Torsten Lindner, Yoshiro Mitsukami
  • Patent number: 7582074
    Abstract: An absorbent article including a cover layer, a barrier layer and an absorbent layer arranged between the cover layer and the barrier layer, the absorbent article being drapeable and possessing the absorbency attributes required of a sanitary napkin.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: September 1, 2009
    Assignee: McNeil-PPC, Inc.
    Inventors: Leonard G. Rosenfeld, Theresa Wysocki, Morris Yang, Marina Nikitina, John Poccia
  • Patent number: 7578810
    Abstract: A body attachable absorbent article including a cover layer, a barrier layer and an absorbent system arranged between the cover layer and the barrier layer, the absorbent article being drapeable and possessing the absorbency attributes required of a sanitary napkin.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: August 25, 2009
    Assignee: McNeil-PPC, Inc.
    Inventors: Leonard G. Rosenfeld, Theresa Wysocki, Morris Yang, Marina Nikitina, John Poccia
  • Publication number: 20090204087
    Abstract: Superabsorbent polymer particles having superior gel integrity, absorption capacity, and permeability are disclosed. A method of producing the superabsorbent polymer particles by applying a polyamine coating to the particles also is disclosed.
    Type: Application
    Filed: August 7, 2007
    Publication date: August 13, 2009
    Applicant: BASF SE
    Inventors: Norbert Herfert, Martin Wendker, Rich Goodwin, Ma-Ikay Kikama Miatudila, Michael A. Mitchell, William G-J Chiang
  • Patent number: 7572248
    Abstract: The present invention relates to disposable pant-type garments. Examples of such disposable pant-type garments include disposable underwear, adult incontinence products, disposable pull-on diapers and training pants, and disposable panties for menstrual use.
    Type: Grant
    Filed: May 8, 2003
    Date of Patent: August 11, 2009
    Assignee: The Procter & Gamble Company
    Inventors: Gregory Ashton, Michael Charles Raufman, Joseph Hung Lam
  • Patent number: 7566329
    Abstract: An absorbent article including a cover layer, a barrier layer and an absorbent system arranged between the cover layer and the barrier layer, the absorbent article being drapeable and possessing the absorbency attributes required of a sanitary napkin.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: July 28, 2009
    Assignee: McNeil-PPC, Inc.
    Inventors: Leonard G. Rosenfeld, Hien V. Nguyen
  • Publication number: 20090187155
    Abstract: An absorbent article (1000) includes “beads” (111) that are modified to add functional groups (113). The functional groups (113) add antimicrobial, fire retardant, alcohol repellant and other properties. In addition, the beads (111) may be inert diamond, or conductive graphite. The substrate (101) of the article (1000) may be made with the beads (111) and functional groups (113) retaining the properties. The beads (111) and functional groups (113) may be incorporated into super absorbent materials (117) and attached to the substrate (101), with or without a binder (103). The resulting article (1000) therefore may have antimicrobial, fire retardant, alcohol repellant and antistatic properties making it specifically useful in medical applications. It may also be made as a multi-layered article (1000) having different amounts of super absorbent (“SA”) particles (1207, 1307, 1407) printed or embedded in patterns on each layer (1100, 1200, 1300, 1400), thereby channeling liquids.
    Type: Application
    Filed: July 17, 2007
    Publication date: July 23, 2009
    Inventor: Ali Razavi
  • Publication number: 20090182295
    Abstract: 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: Application
    Filed: January 29, 2009
    Publication date: July 16, 2009
    Applicant: TREDGAR FILM PRODUCTS CORPORATION
    Inventor: Rickey J. Seyler
  • Publication number: 20090171309
    Abstract: The present invention provides a body adhering absorbent article which is capable of absorbing bodily fluids. In this particular embodiment of the present invention, provided is an absorbent article which is specifically designed for attachment to a wearer's skin in the vulva region of the wearer's torso.
    Type: Application
    Filed: December 28, 2007
    Publication date: July 2, 2009
    Inventors: Thomas W. VanDenBogart, Adrienne R. Loyd, Garry R. Woltman, David J. Enz, Renee Sue Booms, Carmen Lira, Katie A. Boland, Ann Louise McCormack, Deborah S. Hannah, Mary McDaniel
  • Publication number: 20090157020
    Abstract: A film that is formed from a biodegradable polymer blend of different aliphatic-aromatic copolyesters is provided. More specifically, the blend contains a first copolyester formed from a terephthalic acid monomer. The use of a terephthalic acid monomer results in a polymer chain containing 1,4-(para-) terephthalate units linked in a generally linear configuration (e.g., ˜180°). The blend also contains a second aliphatic-aromatic copolyester formed from a phthalic acid and/or isophthalic acid monomer. The use of such a monomer results in a polymer chain containing 1,2-(ortho-) and/or 1,3-(meta-) linked units. The inclusion of 1,2-(ortho-) and/or 1,3-(meta-) linked units into the polymer backbone of the second copolyester introduces an angle or “kink” (e.g., ˜120° kink for a 1,3-linkage) into the otherwise linear polymer chain. The “kinks” in the second copolyester backbone reduce its melting point and degree of crystallinity, which have an influence on its physical properties (e.g.
    Type: Application
    Filed: December 14, 2007
    Publication date: June 18, 2009
    Applicant: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Bo Shi, James H. Wang
  • Patent number: 7547815
    Abstract: A disposable absorbent pad includes an absorbent fibrous structure having a longitudinal axis, a transverse axis, and front and rear regions aligned with each other in a direction along the longitudinal axis. The pad has a flexibility of the front region higher than in rear region.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: June 16, 2009
    Assignee: Uni-Charm Corporation
    Inventors: Naoto Ohashi, Tomomi Oku, Hikari Kawakami, Ryuichi Kamiyama
  • Publication number: 20090137977
    Abstract: [Problems] To provide an absorbent article that hardly causes skin roughness. [Means for Solving Problems] An absorbent article 10 comprising a face sheet 1 and an absorbent body 3 in this order, wherein the face sheet 1 is at least one of concavo-convex or convexo-flat heat-embossed sheet and concavo-convex or convexo-flat ultrasonic-embossed sheet.
    Type: Application
    Filed: October 6, 2006
    Publication date: May 28, 2009
    Inventors: Akinori Fukae, Yumiko Seike
  • Publication number: 20090137975
    Abstract: An absorbent article 1 including a blood separating member 4 capable of separating blood into blood cells and plasma. The blood separating member 4 preferably has pores with a diameter of 6 ?m or smaller in a proportion of 20% to 90% in a pore size distribution measured in accordance with ASTM F361-86. A nonwoven fabric obtained by calendering a fiber aggregate can be used as the blood separating member.
    Type: Application
    Filed: June 7, 2006
    Publication date: May 28, 2009
    Applicant: Kao Corporation
    Inventors: Hiroshi Kohira, Hiromi Tachikawa, Hiroko Kawaguchi
  • Patent number: 7537585
    Abstract: The absorbent article provides a signal viewable from the top surface of the absorbent article which gives a perception of depth within the absorbent article. This creation of depth perception is accomplished by the use of at least two tones within a color and/or by the use of multiple tones and multiple colors operating together to create a perception of depth within the absorbent article.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: May 26, 2009
    Assignee: The Procter & Gamble Company
    Inventors: Patricia Lee Christon, Bryan Keith Feller, Ronda Lynn Glassmeyer, Rosa Alejandra Hernandez
  • Patent number: 7534928
    Abstract: 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: Grant
    Filed: August 9, 2002
    Date of Patent: May 19, 2009
    Assignee: Kao Corporation
    Inventors: Noriko Sakamoto, Hiroko Sugiura, Yasuo Toyoshima, Shoichi Taneichi, Wataru Saka
  • Publication number: 20090112173
    Abstract: The present invention generally relates to absorbent sanitary napkins and in particular to a sanitary napkin including an absorbent layer having a plurality of spaced beam elements for promoting enhanced fluid wicking within the sanitary napkin.
    Type: Application
    Filed: December 17, 2007
    Publication date: April 30, 2009
    Inventors: Kofi Ayensu Bissah, Ricardo De Oliveira, Denis Tremblay
  • Patent number: 7521588
    Abstract: 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: Grant
    Filed: May 12, 2005
    Date of Patent: April 21, 2009
    Assignee: The Procter & Gamble Company
    Inventors: Keith Joseph Stone, Brian Francis Gray, Norman Scott Broyles, Dimitris Ioannis Collias, Yann-Per Lee
  • Publication number: 20090099539
    Abstract: Potty training liners are a comfortable, child sized, absorbent liner, with a concave center and an expandable, flexible bottom to allow rapid flowing urine collection and retention. The Liner has unique absorbent collapsible side walls with an unobstructed center containing superabsorbent for quick pooling of urine. The liner is adhered to the inside of the child's underwear with a thick adhesive strip on the bottom outer portion of the liner. The Liner is soft and flexible, and does not have the feel of a diaper. It is a unique stop-gap solution for children progressing from pull-on diapers to unprotected underwear. The purpose of the liner is for training, and short term emergency “accident” protection, as opposed to long term wearable protection.
    Type: Application
    Filed: October 9, 2008
    Publication date: April 16, 2009
    Inventor: Lori Lee Periman
  • Publication number: 20090099542
    Abstract: A nonwoven web material that contains an elastic component is provided. The elastic component contains a crosslinked network formed from a linear block copolymer having a monoalkenyl aromatic midblock positioned between conjugated diene endblocks (e.g., butadiene-styrene-butadiene (“B-S-B”) triblock copolymer). Prior to crosslinking, such linear block copolymers have a relatively low viscosity and thus may be readily formed into a precursor elastic component that is subsequently crosslinked to achieve the desired elastic and mechanical properties. Crosslinking is typically achieved through the formation of free radicals (unpaired electrons) that link together to form a plurality of carbon-carbon covalent bonds at the conjugated diene endblocks.
    Type: Application
    Filed: October 16, 2007
    Publication date: April 16, 2009
    Applicant: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: Oomman P. Thomas, James Austin, Howard M. Welch, Jose Siqueira
  • Publication number: 20090099540
    Abstract: An absorbent core for use in a disposable wearing article for absorbing of liquid body exudates in humans and preventing leakage from the article is provided. The absorption of the liquid body exudates is facilitated by use of two different super absorbent polymers having different absorption under load and capable of forming a gel on contact with liquid.
    Type: Application
    Filed: October 16, 2007
    Publication date: April 16, 2009
    Inventor: Fong Wah Sin
  • Patent number: 7518032
    Abstract: 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: Grant
    Filed: November 14, 2006
    Date of Patent: April 14, 2009
    Assignee: Tredegar Film Products Corporation
    Inventor: Rickey J. Seyler
  • Patent number: 7514591
    Abstract: An interlabial absorbent article configured for disposition primarily within the vestibule of a female wearer includes a generally liquid permeable cover sheet, a generally liquid impermeable back sheet, and an absorbent material disposed between the cover sheet and the back sheet. The back sheet has a water vapor transmission rate that is at least about 20% of a water vapor transmission rate of the cover sheet. The cover sheet and said back sheet may have a contact angle mismatch of less than about 25%. The absorbent material may have a density greater than water. Upon being flushed, the article has an initial neutral buoyancy and subsequently sinks within about 7 days from being flushed.
    Type: Grant
    Filed: December 10, 2003
    Date of Patent: April 7, 2009
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Ann Marie Przepasniak, Susan M. Weyenberg, Patricia A. Mitchler, Heather A. Sorebo, Wilfred E. Riddell
  • Publication number: 20090082745
    Abstract: A sanitary article that is used to cover the crotch portion of a human body so as to prevent excretions of the human body from leaking to the outside includes a liquid-permeable surface thin layer, a liquid-impermeable back thin layer and a liquid-absorptive core layer sandwiched between the above two layers. The liquid-absorptive core layer is provided with a draining means for allowing some of the excretions of the human body to pass through. A detecting body is provided between the liquid-impermeable back thin layer and the liquid-absorptive core layer, thereby receiving the excretions guided by the draining means. A window portion is provided on the liquid-impermeable back thin layer at a position corresponding to the detecting body. Via this arrangement, the use can observe the reaction represented by the internal detecting body directly via the window portion.
    Type: Application
    Filed: March 27, 2008
    Publication date: March 26, 2009
    Inventors: Nai-Ko YING, Jeng-Homg HOU
  • Publication number: 20090082744
    Abstract: An absorbent product, such as an incontinence pad, a sanitary towel, a panty liner or the like, having a liquid-permeable top layer, a preferably liquid-impermeable bottom layer and an absorbent core arranged between the top layer and the bottom layer. The top layer is joined together with a subjacent admission material by means of ultrasonic processing, in conjunction with which the laminate that is defined by the top layer and the admission material when these are joined together includes a reinforcement executed with ultrasonic processing essentially along its peripheral edge. Also, a method for manufacturing the aforementioned products.
    Type: Application
    Filed: December 16, 2005
    Publication date: March 26, 2009
    Applicant: SCA Hygiene Products AB
    Inventors: Carin Hakansson, Johan Wahlstrom
  • Publication number: 20090082746
    Abstract: Embodiments of a thin web comprising a plurality of channels extending through the film are disclosed. The channels are in a substantially closed position but are capable of being in an open position to allow flow from the female side through the film to the male side. In certain applications, a greater pressure on the female side than the male side is capable of opening the channels. Embodiments may also include a thin web comprising a plurality of three dimensional apertures extending through the plastic film. The apertures may form a substantially closed channel defined by a sidewall and the channels being disposed at an angle greater than 70° with respect to a female side of the film. The thin web may be a plastic film or a thermoplastic film comprising a polyolefin, for example, or any other suitable material. The polyolefin may comprise at least one of polyethylene, polypropylene, low density polyethylene, or high density polyethylene, for example.
    Type: Application
    Filed: September 24, 2007
    Publication date: March 26, 2009
    Inventors: Paul E. Thomas, Timothy L. Clark
  • Publication number: 20090076472
    Abstract: An absorbent layer is disclosed which is capable of absorbing a fluid and which maintains the superabsorbent particles, powder or fibers in a predetermined position. The absorbent layer is constructed of a bulky, three-dimensional fabric which has a liquid adhesive applied thereto in a non-continuous fashion. A superabsorbent is then positioned on the liquid adhesive. The absorbent layer can be secured to a liquid-impermeable outer cover to form a disposable absorbent article. A method of forming the absorbent layer is also disclosed. Furthermore, a method of forming a disposable absorbent article using the absorbent layer is described.
    Type: Application
    Filed: September 17, 2007
    Publication date: March 19, 2009
    Applicant: Tisteron, Ltd.
    Inventors: Moshe D. Goldwasser, Stanley R. Kellenberger
  • Patent number: 7504553
    Abstract: An absorbent article having a topsheet 2, a backsheet 3, and an absorbent member 4 interposed between the topsheet 2 and the backsheet 3 is disclosed. The absorbent member 4 has a number of compressed parts 7 which are discrete from one another and concave on the backsheet facing side and/or the topsheet facing side. The compressed part is configured to increase in thickness on absorbing liquid. The compressed part is made up of a thinnest portion 8 and a sloping portion 9. The sloping portion a gradually changes in thickness to connect to the thinnest portion 8.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: March 17, 2009
    Assignee: Kao Corporation
    Inventors: Shinsuke Nagahara, Nobuya Sato, Yayoi Fukuhara, Ken Nemoto
  • Publication number: 20090062760
    Abstract: The invention relates to slit absorbent articles and the use of slits in absorbent materials to provide improved liquid intake rate, flexibility and softness compared to the unmodified material. The absorbent material, including superabsorbent materials, are particularly useful as absorbent cores in disposable absorbent articles such as diapers, incontinent products, sanitary napkins and the like.
    Type: Application
    Filed: June 12, 2008
    Publication date: March 5, 2009
    Inventors: Andrew Wright, Patrick King Yu Tsang
  • Publication number: 20090062753
    Abstract: Various embodiments of this invention disclose disposable undergarments, such as women's panties or men's briefs, which are lined with local anesthetics that create an area or areas of numbness on the body.
    Type: Application
    Filed: January 30, 2008
    Publication date: March 5, 2009
    Inventor: Edna Ma
  • Publication number: 20090054863
    Abstract: A method for alteration of the morphology of cellulose fibers, particularly softwood fibers, by (a) subjecting the fibers to a metal ion-activated peroxide treatment carried out at a pH of between about I and about 9, preferably between 3 and 7, and (b) subjecting the treated fibers to a refining treatment thereby converts SW fibers to HW-like fibers in many respects. The metal ion-activated peroxide treatment has been noted to act on pulp cellulose and hemi-cellulose, causing oxidation and oxidative degradation of cellulose fibers. The chemical treatment of the pulp, taken alone, is not sufficient to attain the desired modification of the morphology of the fibers, however, subsequent refining or like mechanical treatment of the chemically-treated fibers to achieve a given degree of refinement of the fibers requires dramatically less refining energy to achieve a desired end point of refinement and to impart other desirable properties to the pulp.
    Type: Application
    Filed: May 16, 2008
    Publication date: February 26, 2009
    Inventors: Zheng Tan, Xuan Nguyen, Karen L. Maurer
  • Patent number: 7491195
    Abstract: An absorbent article is disclosed that provides improved leakage protection. Also disclosed are methods for using and preparing absorbent articles having improved leakage protection, methods for designing articles having improved leakage protection, and methods of measuring and determining the performance index of an absorbent article. The absorbent article having improved leakage protection has a 3 variable urine only leakage performance index (PI3UL) of less than about 3.0, the PI3UL being determined in accordance with the following equation (1): PI3UL=0.046(Tc)?2.94(MS100)?0.772(AUL)??(1) where Tc is the total capacity in grams, MS100 is the percent utilization of the core upon insult with 100 ml of 0.9 wt % saline solution, and AUL is the front pad absorbency under load, expressed in grams of 0.9 wt % saline solution absorbed per gram of pad material.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: February 17, 2009
    Assignee: First Quality Retail Services LLC
    Inventor: John D. Litvay
  • Patent number: 7491864
    Abstract: An absorbent article for body fluids aimed at utilizing an entire absorbent member efficiently and having a thinner form, a larger absorption capacity and longer wearability as a whole is provided. The absorbent member 25 has a contraction material 27 which contracts itself on contacting urine passing through a liquid-permeable surface layer provided on the side facing to the body skin and an absorbent material for body fluids 26 which is practically united with the contraction material 27 is arranged on the upper side of a leak proof layer provided on the side farther from the body skin.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: February 17, 2009
    Assignee: DAIO Paper Corporation
    Inventors: Kazunori Nishizawa, Tomotsugu Matsui, Tomohiro Otani, Yuka Kurita
  • Patent number: 7488535
    Abstract: The present invention relates to absorbent cores for absorbent articles, which are intended to receive and retain bodily discharges such as urine. Such articles are disposable hygiene articles like baby diapers, training pants, adult incontinence articles, feminine care articles and the like. The improvement essentially is based on the recognition that replacing most or all of the cushioning fibrous absorbent material in an absorbent core by a liquid storage material capable of retaining liquid while maintaining or improving acquisition behavior is desirable as the reduction in cushioning is more than compensated by the gain in comfort. The comfort however can only be achieved if the more fundamental requirements of a diaper in respect to liquid handling are satisfied or improved.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: February 10, 2009
    Assignee: The Procter & Gamble Company
    Inventors: Bruno Johannes Ehrnsperger, Udo Friedel Schoenborn
  • Patent number: 7488310
    Abstract: An absorbent article including a cover layer, a barrier layer, and a stabilizing layer arranged between said cover layer and said barrier layer. The stabilizing layer has a Dry Stiffness Index of at least about 0.9 g/gsm and a Wet Stiffness Loss of at least about 80%.
    Type: Grant
    Filed: October 17, 2006
    Date of Patent: February 10, 2009
    Assignee: McNeil-PPC, Inc.
    Inventor: Morris Yang
  • Publication number: 20090036854
    Abstract: The invention concerns an absorbent article comprising at least one liquid-permeable layer material (105) and an absorbent structure (106), the absorbent structure (106) having the ability to expand on wetting, which entails that the absorbent structure (106) displays a first volume in dry condition and a second volume in completely expanded wet condition, the second volume being greater than the first volume. The liquid-permeable layer material (105) encloses the absorbent structure (106) so that the absorbent structure (106) is prevented from reaching complete expansion during wetting.
    Type: Application
    Filed: December 21, 2005
    Publication date: February 5, 2009
    Applicant: SCA Hygiene Products AB
    Inventors: Ted Guidotti, Gunnar Edvardsson
  • Publication number: 20090030391
    Abstract: An absorbent article having a topsheet having a first portion and a second portion. The topsheet has a longitudinal centerline and a transverse centerline. The topsheet has an area. The second portion can differ in structure from the first portion. The second portion can have a structurally modified zone. The structurally modified zone has a periphery, a length, and a long axis. The length is the maximum straight-line dimension between two points on the periphery. The long axis extends between two points on the periphery separated by the length. The long axis of the structurally modified zone can be asymmetric to the longitudinal centerline. The structurally modified zone can make up more than about 5% of the area of the topsheet. The topsheet can have a lotion zone, the long axis of which is asymmetric to the longitudinal centerline and the transverse centerline.
    Type: Application
    Filed: July 25, 2007
    Publication date: January 29, 2009
    Inventors: John Lee Hammons, Sybille Fuchs, Jody Lynn Hoying, Timothy Ian Mullane, Casandre Maffett Walsh, Philip Andrew Sawin, Donna Marie Caudill, Naomi Ruth Nelson
  • Publication number: 20090030390
    Abstract: An absorbent article having a topsheet having a first portion and a second portion. The topsheet has a longitudinal centerline and a transverse centerline. The topsheet has an area. The second portion can differ in structure from the first portion. The second portion can have a structurally modified zone. The structurally modified zone has a periphery, a length, and a long axis. The length is the maximum straight-line dimension between two points on the periphery. The long axis extends between two points on the periphery separated by the length. The long axis of the structurally modified zone can be asymmetric to the longitudinal centerline. The structurally modified zone can make up more than about 5% of the area of the topsheet. The topsheet can have a lotion zone, the long axis of which is asymmetric to the longitudinal centerline and the transverse centerline.
    Type: Application
    Filed: July 25, 2007
    Publication date: January 29, 2009
    Inventors: John Lee Hammons, Sybille Fuchs, Jody Lynn Hoying, Timothy Ian Mullane, Casandre Maffett Walsh, Donna Marie Caudill, Naomi Ruth Nelson
  • Patent number: 7482505
    Abstract: The invention relates to a single use hygiene article, comprising an absorbing body layer (24, 60, 70), which serves to store body fluids and which can also contain superabsorbent materials, and comprising standing cuff elements (26, 28), which extend in an essentially longitudinal direction, form a lateral leakage barrier and which are attached to the body-facing side of the article at least along a cuff base line (34, 36; 62, 64; 76, 78). The cuff elements (26, 28) are guided with variable distances between the cuff base lines (34, 36; 62, 64; 76, 78). The aim of the invention is to improve the absorption characteristics of the hygiene article. Towards this end, the article is designed in such a manner that the absorbing body layer (24, 60, 70) comprises, in a transversal direction (44) of the hygiene article up to the lateral edges (16) and/or in a longitudinal direction (38) up to at least one longitudinal end (40), an increasing mass per unit area of an absorbent material of this layer.
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: January 27, 2009
    Assignee: Paul Hartmann AG
    Inventors: Hans-Peter Stupperich, Wolfgang Röhrl
  • Publication number: 20090012489
    Abstract: A sanitary napkin including a first embossing pattern including a first and second plurality of arcuate channels and a second embossing pattern including a third and fourth plurality of arcuate channels, the channels cooperating to define a plurality of protrusions extending upwardly from the channels.
    Type: Application
    Filed: July 3, 2007
    Publication date: January 8, 2009
    Inventors: Julie Francoeur, Francisco Javier Valdivia Hernandez, Yi Zhang
  • Patent number: 7473817
    Abstract: An absorbent article having a liquid permeable top layer, a liquid impermeable leakproof layer, and a liquid retentive absorbent layer interposed between the layers, wherein the absorbent layer has an odor-controlling member containing (a) 20 to 80% by weight of specific hydrophilic fiber or hydrophilic foam and (b) an odor-controlling agent, the odor-controlling member 9 being composed of a layer made up of a mutually dispersing mixture of component (a) and component (b) or being composed of adjacent layers separately comprising component (a) and component (b).
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: January 6, 2009
    Assignee: Kao Corporation
    Inventors: Masahito Tanaka, Mitsugu Hamajima, Noriko Sakamoto, Futoshi Teranishi, Minoru Nakanishi
  • Patent number: 7470264
    Abstract: A disposable wearing article includes a liquid-impervious chassis, a body fluid absorbent first panel extending over a crotch region and a rear waist region of the chassis and a body fluid absorbent second panel extending over a front waist region and the crotch region of the chassis. The second panel has a front portion joined to the front waist region, a distal portion lying above the crotch region and transversely opposite side edges joined to transversely opposite lateral sections of the chassis. The distal portion is spaced apart upward from the chassis and thereby a pocket opening from the crotch region toward the rear waist region is formed between the chassis and the distal portion of the second panel.
    Type: Grant
    Filed: March 9, 2005
    Date of Patent: December 30, 2008
    Assignee: Uni-Charm Corporation
    Inventors: Yoshitaka Mishima, Kaiyo Nakajima