Containing Layers Having Differing Absorption Characteristics (e.g., Flow Control, Wicking, Etc.) Patents (Class 604/378)
-
Publication number: 20090247977Abstract: [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: ApplicationFiled: June 30, 2005Publication date: October 1, 2009Inventors: Tomonari Takeuchi, Satoko Konawa, Keisuke Ebitsuka, Tomotsugu Matsui
-
Publication number: 20090247975Abstract: 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: ApplicationFiled: June 5, 2009Publication date: October 1, 2009Inventors: Gary Dean LaVon, Kevin Michael Smith
-
Patent number: 7594904Abstract: 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: GrantFiled: September 16, 2004Date of Patent: September 29, 2009Assignee: McNeil-PPC, Inc.Inventors: Leonard G. Rosenfeld, Theresa Wysocki, Morris Yang, Marina Nikitina, John Poccia
-
Publication number: 20090240225Abstract: 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: ApplicationFiled: June 1, 2007Publication date: September 24, 2009Applicant: UNI-CHARM CORPORATIONInventors: Yuki Noda, Kenichiro Kuroda
-
Publication number: 20090240222Abstract: 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: ApplicationFiled: November 6, 2007Publication date: September 24, 2009Applicant: UNI-CHARM CORPORATIONInventors: Sugito Tomoko, Kyo Kikuchi, Jyoji Shimizu, Osamu Nakajima
-
Publication number: 20090240224Abstract: 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: ApplicationFiled: May 28, 2009Publication date: September 24, 2009Applicant: Kimberly-Clark Worldwide, Inc.Inventors: Richard L. Underhill, Michael J. Niemeyer, Marianne K. Leick
-
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
-
Patent number: 7589250Abstract: 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: GrantFiled: December 9, 2002Date of Patent: September 15, 2009Assignee: SCA Hygiene Products ABInventors: Solgun Drevik, Anette Gustavsson, Pontus Winqvist
-
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
-
Patent number: 7588822Abstract: 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: GrantFiled: August 23, 2006Date of Patent: September 15, 2009Assignee: The Procter & Gamble Co.Inventors: Andreas Flohr, Torsten Lindner, Yoshiro Mitsukami
-
Patent number: 7582074Abstract: 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: GrantFiled: June 29, 2005Date of Patent: September 1, 2009Assignee: McNeil-PPC, Inc.Inventors: Leonard G. Rosenfeld, Theresa Wysocki, Morris Yang, Marina Nikitina, John Poccia
-
Patent number: 7578810Abstract: 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: GrantFiled: June 29, 2005Date of Patent: August 25, 2009Assignee: McNeil-PPC, Inc.Inventors: Leonard G. Rosenfeld, Theresa Wysocki, Morris Yang, Marina Nikitina, John Poccia
-
Publication number: 20090204087Abstract: 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: ApplicationFiled: August 7, 2007Publication date: August 13, 2009Applicant: BASF SEInventors: Norbert Herfert, Martin Wendker, Rich Goodwin, Ma-Ikay Kikama Miatudila, Michael A. Mitchell, William G-J Chiang
-
Patent number: 7572248Abstract: 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: GrantFiled: May 8, 2003Date of Patent: August 11, 2009Assignee: The Procter & Gamble CompanyInventors: Gregory Ashton, Michael Charles Raufman, Joseph Hung Lam
-
Patent number: 7566329Abstract: 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: GrantFiled: October 30, 2006Date of Patent: July 28, 2009Assignee: McNeil-PPC, Inc.Inventors: Leonard G. Rosenfeld, Hien V. Nguyen
-
Publication number: 20090187155Abstract: 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: ApplicationFiled: July 17, 2007Publication date: July 23, 2009Inventor: Ali Razavi
-
Publication number: 20090182295Abstract: 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: January 29, 2009Publication date: July 16, 2009Applicant: TREDGAR FILM PRODUCTS CORPORATIONInventor: Rickey J. Seyler
-
Publication number: 20090171309Abstract: 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: ApplicationFiled: December 28, 2007Publication date: July 2, 2009Inventors: 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: 20090157020Abstract: 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: ApplicationFiled: December 14, 2007Publication date: June 18, 2009Applicant: KIMBERLY-CLARK WORLDWIDE, INC.Inventors: Bo Shi, James H. Wang
-
Patent number: 7547815Abstract: 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: GrantFiled: September 26, 2005Date of Patent: June 16, 2009Assignee: Uni-Charm CorporationInventors: Naoto Ohashi, Tomomi Oku, Hikari Kawakami, Ryuichi Kamiyama
-
Publication number: 20090137977Abstract: [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: ApplicationFiled: October 6, 2006Publication date: May 28, 2009Inventors: Akinori Fukae, Yumiko Seike
-
Publication number: 20090137975Abstract: 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: ApplicationFiled: June 7, 2006Publication date: May 28, 2009Applicant: Kao CorporationInventors: Hiroshi Kohira, Hiromi Tachikawa, Hiroko Kawaguchi
-
Patent number: 7537585Abstract: 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: GrantFiled: August 20, 2007Date of Patent: May 26, 2009Assignee: The Procter & Gamble CompanyInventors: Patricia Lee Christon, Bryan Keith Feller, Ronda Lynn Glassmeyer, Rosa Alejandra Hernandez
-
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
-
Publication number: 20090112173Abstract: 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: ApplicationFiled: December 17, 2007Publication date: April 30, 2009Inventors: Kofi Ayensu Bissah, Ricardo De Oliveira, Denis Tremblay
-
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
-
Publication number: 20090099539Abstract: 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: ApplicationFiled: October 9, 2008Publication date: April 16, 2009Inventor: Lori Lee Periman
-
Publication number: 20090099542Abstract: 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: ApplicationFiled: October 16, 2007Publication date: April 16, 2009Applicant: KIMBERLY-CLARK WORLDWIDE, INC.Inventors: Oomman P. Thomas, James Austin, Howard M. Welch, Jose Siqueira
-
Publication number: 20090099540Abstract: 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: ApplicationFiled: October 16, 2007Publication date: April 16, 2009Inventor: Fong Wah Sin
-
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
-
Patent number: 7514591Abstract: 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: GrantFiled: December 10, 2003Date of Patent: April 7, 2009Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Ann Marie Przepasniak, Susan M. Weyenberg, Patricia A. Mitchler, Heather A. Sorebo, Wilfred E. Riddell
-
Publication number: 20090082745Abstract: 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: ApplicationFiled: March 27, 2008Publication date: March 26, 2009Inventors: Nai-Ko YING, Jeng-Homg HOU
-
Publication number: 20090082744Abstract: 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: ApplicationFiled: December 16, 2005Publication date: March 26, 2009Applicant: SCA Hygiene Products ABInventors: Carin Hakansson, Johan Wahlstrom
-
Publication number: 20090082746Abstract: 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: ApplicationFiled: September 24, 2007Publication date: March 26, 2009Inventors: Paul E. Thomas, Timothy L. Clark
-
Publication number: 20090076472Abstract: 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: ApplicationFiled: September 17, 2007Publication date: March 19, 2009Applicant: Tisteron, Ltd.Inventors: Moshe D. Goldwasser, Stanley R. Kellenberger
-
Patent number: 7504553Abstract: 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: GrantFiled: August 18, 2005Date of Patent: March 17, 2009Assignee: Kao CorporationInventors: Shinsuke Nagahara, Nobuya Sato, Yayoi Fukuhara, Ken Nemoto
-
Publication number: 20090062760Abstract: 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: ApplicationFiled: June 12, 2008Publication date: March 5, 2009Inventors: Andrew Wright, Patrick King Yu Tsang
-
Publication number: 20090062753Abstract: 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: ApplicationFiled: January 30, 2008Publication date: March 5, 2009Inventor: Edna Ma
-
Publication number: 20090054863Abstract: 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: ApplicationFiled: May 16, 2008Publication date: February 26, 2009Inventors: Zheng Tan, Xuan Nguyen, Karen L. Maurer
-
Patent number: 7491195Abstract: 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: GrantFiled: September 30, 2003Date of Patent: February 17, 2009Assignee: First Quality Retail Services LLCInventor: John D. Litvay
-
Patent number: 7491864Abstract: 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: GrantFiled: February 1, 2002Date of Patent: February 17, 2009Assignee: DAIO Paper CorporationInventors: Kazunori Nishizawa, Tomotsugu Matsui, Tomohiro Otani, Yuka Kurita
-
Patent number: 7488535Abstract: 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: GrantFiled: February 9, 2007Date of Patent: February 10, 2009Assignee: The Procter & Gamble CompanyInventors: Bruno Johannes Ehrnsperger, Udo Friedel Schoenborn
-
Patent number: 7488310Abstract: 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: GrantFiled: October 17, 2006Date of Patent: February 10, 2009Assignee: McNeil-PPC, Inc.Inventor: Morris Yang
-
Publication number: 20090036854Abstract: 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: ApplicationFiled: December 21, 2005Publication date: February 5, 2009Applicant: SCA Hygiene Products ABInventors: Ted Guidotti, Gunnar Edvardsson
-
Publication number: 20090030391Abstract: 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: ApplicationFiled: July 25, 2007Publication date: January 29, 2009Inventors: 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: 20090030390Abstract: 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: ApplicationFiled: July 25, 2007Publication date: January 29, 2009Inventors: John Lee Hammons, Sybille Fuchs, Jody Lynn Hoying, Timothy Ian Mullane, Casandre Maffett Walsh, Donna Marie Caudill, Naomi Ruth Nelson
-
Patent number: 7482505Abstract: 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: GrantFiled: May 12, 2004Date of Patent: January 27, 2009Assignee: Paul Hartmann AGInventors: Hans-Peter Stupperich, Wolfgang Röhrl
-
Publication number: 20090012489Abstract: 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: ApplicationFiled: July 3, 2007Publication date: January 8, 2009Inventors: Julie Francoeur, Francisco Javier Valdivia Hernandez, Yi Zhang
-
Patent number: 7473817Abstract: 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: GrantFiled: May 19, 2000Date of Patent: January 6, 2009Assignee: Kao CorporationInventors: Masahito Tanaka, Mitsugu Hamajima, Noriko Sakamoto, Futoshi Teranishi, Minoru Nakanishi
-
Patent number: 7470264Abstract: 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: GrantFiled: March 9, 2005Date of Patent: December 30, 2008Assignee: Uni-Charm CorporationInventors: Yoshitaka Mishima, Kaiyo Nakajima