Having Discontinuous Areas Of Compression Patents (Class 604/380)
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Patent number: 8343125Abstract: An absorbent article (100) includes a topsheet (101), a backsheet (102), and an absorbent core (10). The absorbent core (10) includes a number of discretely and independently arranged absorbent members (30) located across a planar direction of the article (100). An intermediate sheet (20) is disposed between the topsheet (101) and the absorbent core (10) or between the backsheet (102) and the absorbent core (10). The absorbent members (30) are fixed to the intermediate sheet (20). It is preferable that an absorption rate of physiological saline solution measured by D/W method of each of the topsheet (101), the intermediate sheet (20), and the absorbent core (10) satisfies the following relationship: the topsheet (101)<the intermediate sheet (20)<the absorbent core (10).Type: GrantFiled: December 11, 2008Date of Patent: January 1, 2013Assignee: Kao CorporationInventors: Masashi Kawazoe, Takuya Kouta, Takeshi Miyamura
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Patent number: 8273943Abstract: It is intended to provide an absorbent article provided with a composite sheet which comprises a film sheet and a fiber mass and is excellent in the ability to draw in a liquid and the ability to prevent the backward flow. Namely, an absorbent article provided with a composite sheet comprising a film sheet having multiple pores formed therein and a fiber mass laminated on one side of the film sheet, wherein the fiber mass has a projected section in which a part of the fiber mass projects through the multiple pores toward the other side of the film sheet.Type: GrantFiled: December 11, 2007Date of Patent: September 25, 2012Assignee: Uni-Charm CorporationInventors: Yuki Noda, Kenichiro Kuroda
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Patent number: 8273941Abstract: The invention provides a nonwoven fabric having good fluid drawing properties, in which fluid hardly remains, a method for producing a nonwoven fabric, and an absorbent article. The nonwoven fabric has a thickness direction and a planar direction perpendicular to the thickness direction, and includes a high density region having a higher fiber density than an average fiber density. The high density region penetrates from one side to another side in the thickness direction.Type: GrantFiled: April 14, 2008Date of Patent: September 25, 2012Assignee: Uni-Charm CorporationInventors: Katsuhiro Uematsu, Hideyuki Ishikawa, Kouichirou Tani
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Publication number: 20120220971Abstract: A compression region 50 includes a low compression region 53, in a plan view from a side of a skin contact portion. A density of the low compression region 53 is higher than that of a non-compression region 30a of absorbent article 1. The low compression region 53 is provided with a high compression region 54. The high compression region 54 has a further increased density of the absorber 30. A contact portion 54a of the high compression region 54 contacts with a contact portion 53a of the low compression region 53.Type: ApplicationFiled: September 17, 2010Publication date: August 30, 2012Applicant: Unicharm CorporationInventors: Hiroyuki Harada, Takashi Maruyama, Jyunichi Noguchi
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Patent number: 8235958Abstract: The invention provides an absorbent article that is small and that can be easily worn by a user and a method for producing the absorbent article. The absorbent article that is used in abutment against a user's body includes: an absorbent body for absorbing fluid; and an absorbent-article main body whose face on a side close to the user's body in use is joined to the absorbent body. The absorbent body has a longitudinal direction, a width direction, and a thickness direction. One end section of the absorbent body in the longitudinal direction is undetachably joined to the absorbent-article main body, and another end section of the absorbent body in the longitudinal direction is detachably joined to a portion inside an outer edge of the absorbent-article main body. The absorbent body has a non-joined section that is not joined to the absorbent-article main body, between the joined section on a side close to the other end section and the outer edge of the absorbent-article main body.Type: GrantFiled: November 6, 2007Date of Patent: August 7, 2012Assignee: Uni-Charm CorporationInventors: Jun Kudo, Hideyuki Kinoshita, Akira Hashino
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Publication number: 20120197225Abstract: A method is disclosed for modifying the physical characteristics of a web which involves passing the web between at least one pair of interengaged rolls to incrementally stretch the web, and then withdrawing the incrementally stretched web from between the rolls under tension. A web modified according to the disclosed method has desirable breathability and liquid impermeability, as well as extensibility and a soft, cloth-like textured surface.Type: ApplicationFiled: April 13, 2012Publication date: August 2, 2012Inventors: Barry Jay Anderson, Todd Leon Mansfield, George Christopher Dobrin, Suna Polat
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Patent number: 8227660Abstract: An absorbent article using a surface sheet in which a side of the surface coming into contact with a skin is made of a non-woven fabric and a plastic film layer is stacked in a side of the back of the foregoing non-woven fabric, wherein the residence of a body fluid due to a capillary phenomenon or surface tension in an aperture wall part of the foregoing surface sheet is reduced and the body fluid is rapidly moved into a side of a hydrophilic second sheet or absorber as a lower layer, thereby not only keeping dryness and smoothness on the surface but also preventing turning back with a lapse of time.Type: GrantFiled: June 10, 2005Date of Patent: July 24, 2012Assignee: Daio Paper CorporationInventors: Kenji Hara, Yasuo Ido
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Patent number: 8221373Abstract: A breast-milk pad can be produced relatively easily, such that it reduces an uncomfortable sensation to the skin surface of a user, and has excellent shape retention properties. A method for producing the breast-milk pad is also disclosed. The breast-milk pad can include a material that is made up by stacking: a back sheet that prevents permeation of liquid; a top sheet that contacts the body; and an absorber that is disposed between the back sheet and the top sheet. The top sheet and the back sheet are bonded to each other in an outer peripheral portion. Cutout portions obtained by cutting the absorber can be formed in positions facing each other at the outer peripheral portion such that cutout width of each of the cutout portions gradually narrows down inwardly.Type: GrantFiled: October 24, 2006Date of Patent: July 17, 2012Assignee: Pigeon CorporationInventors: Katsushi Tsutsui, Masahiko Fujishiro, Hidekazu Okuno
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Patent number: 8198506Abstract: An absorbent article includes a liquid pervious liner, a liquid impervious back sheet, and an absorbent composite located between the liner and the back sheet. The absorbent composite includes a first sheet, a second sheet, and a unitary absorbent core. The unitary absorbent core has a plurality of holes there through, wherein each hole has an area less than 200 mm2. The unitary absorbent core has a uniform density and is positioned between the first sheet and the second sheet. The first sheet is directly joined with the second sheet at a plurality of bond points. The bond points are located within the holes and are substantially devoid of absorbent material.Type: GrantFiled: April 21, 2006Date of Patent: June 12, 2012Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Michael Barth Venturino, Daniel Robert Schlinz, John Timothy Hahn
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Patent number: 8188333Abstract: A plastic sheet having cloth-like appearance and thermoplasticity and provided with melt patterns in the sheet face, the melt patterns formed in a predetermined arrangement under an elongating condition of the plastic sheet so as to form convex-concave wrinkles in regions between neighboring melt patterns in the plastic sheet under an un-elongating condition.Type: GrantFiled: September 13, 2001Date of Patent: May 29, 2012Assignee: Daio Paper CorporationInventors: Masaki Matsuoka, Masaya Fujita
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Patent number: 8183430Abstract: An absorbent article, especially an incontinence pad, having a length and a width extension, the length being greater than the width, and including absorbent core material, wherein the absorbent core material forms a central portion (6) and a pair of longitudinally extending side portions (7), the flexural rigidity of the article (1) at the side portions (7) is between 3 and 20% of the flexural rigidity of the article (1) of the central portion (6) at a location opposite the side portions (7), preferably between 4 and 15%, most preferred between 4 and 10%.Type: GrantFiled: December 15, 2005Date of Patent: May 22, 2012Assignee: SCA Hygiene Products ABInventors: Carin Håkansson, Anna Klinte Olsson, Kent Hermansson, Elisabeth Boissier
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Patent number: 8183429Abstract: A composite sheet which has a low basis weight, can be prevented from breaking during the production of an absorbent article or in use, and is good to the touch. The composite sheet is a sheet formed by bonding a stretch nonwoven fabric to a nonstretch nonwoven fabric with an adhesive. The stretch nonwoven fabric is bonded in a stretched state to the nonstretch sheet. The stretch nonwoven fabric has, on each side, strip-form sparse regions and strip-form dense regions alternately formed. The sparse regions and dense regions on one side are alternately formed in a second direction so that the dense regions on this side do not overlie the dense regions on the other side. The composite sheet has a maximum breaking strength of 20 N/50 mm or higher.Type: GrantFiled: November 26, 2007Date of Patent: May 22, 2012Assignee: Uni-Charm CorporationInventors: Tatsuya Hashimoto, Hirotomo Mukai, Satoshi Mitsuno, Tomoko Tsuji, Kenichi Akaki
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Patent number: 8183431Abstract: The present invention provides an absorbent body containing absorbent fibers in which fiber orientation is mainly adjusted, and fiber basis weight and shape are additionally adjusted. The absorbent body 110 of the present invention is an absorbent body containing absorbent fibers, a plurality of low fiber basis weight regions formed continuously in the first direction with a fiber basis weight that is less than an average fiber basis weight of the absorbent body 110, and a plurality of high fiber basis weight regions, formed along and on both sides of the low fiber basis weight regions in relation to the second direction perpendicular to the first direction, with a fiber basis weight that is greater than the average fiber basis weight of the absorbent body 110.Type: GrantFiled: June 13, 2007Date of Patent: May 22, 2012Assignee: Uni-Charm CorporationInventors: Yuki Noda, Hideyuki Ishikawa, Satoshi Mizutani, Koichiro Tani, Akihiro Kimura
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Patent number: 8178747Abstract: An absorbent core comprises an elongate liquid holding formation with a peripheral edge. The liquid holding formation has a surface formed with at least one channel extending longitudinally in the core for distributing liquid lengthwise along the core. The channel has longitudinally opposite ends spaced longitudinally inward from the peripheral edge of the liquid holding formation to inhibit the flow of liquid in the channels past the peripheral edge of the liquid holding formation.Type: GrantFiled: July 29, 2005Date of Patent: May 15, 2012Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Michael B. Venturino, Susan J. Daniels, Steven P. Milanowski
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Patent number: 8173858Abstract: An absorptive article in which an absorptive body is deformed into a stable recessed shape to prevent leakage of a large amount of discharged bodily wastes including bodily fluid. The absorptive article has a front side sheet at least a portion of which is liquid permeable and that is placed on the skin contact surface side, a liquid non-permeable back side sheet placed on the clothing contact surface side, and a liquid retainable absorptive body placed between the front side sheet and the back side sheet. The absorptive body has a compression section formed, when compressed from the clothing contact surface side to the skin contact surface side, into a projected shape projected on the clothing contact surface side, toward the skin contact surface side, and the absorptive body also has a space section formed, when compressed from the skin contact surface side to the clothing contact surface side, into a recessed shape recessed on the skin contact surface side, toward the clothing contact surface side.Type: GrantFiled: November 22, 2007Date of Patent: May 8, 2012Assignee: Uni-Charm CorporationInventors: Kenichiro Kuroda, Yuki Noda
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Publication number: 20120095425Abstract: An absorbent article includes a first curved portion and a second curved portion formed on the surface of a topsheet along a longitudinal direction of the absorbent article. The first curved portion is arranged in one pair to be symmetrical to a centerline of the absorbent article in a region in which the contact region is included, the region being an inside region more than each side part in a widthwise direction of the absorbent article, and is formed along a longitudinal direction of the absorbent article. The second curved portion is arranged in one pair in a region in which the contact region is included, the region being an inside region in the widthwise direction of the absorbent article more than the first curved portion, and is formed along the longitudinal direction of the absorbent article. The first curved portion and the second curved portion has a convex shape outward in the widthwise direction of the absorbent article, in the region in which the contact region is included.Type: ApplicationFiled: April 7, 2010Publication date: April 19, 2012Applicant: UNICHARM CORPORATIONInventors: Kazuya Nishitani, Toshihisa Hayashi, Minako Sagisaka
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Patent number: 8157779Abstract: A contoured and shaped feminine sanitary device (10) comprising a substantially fluid-impermeable bottom layer (26), a substantially fluid-absorbent core (24), and a substantially fluid-permeable top layer (28), with at least one raised area (18) and at least one of back or front extensions (14,16) for facilitating and enhancing fluid absorption in certain areas and during certain activities.Type: GrantFiled: December 5, 2007Date of Patent: April 17, 2012Inventor: Jacquelyn Lowden Williams
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Patent number: 8153856Abstract: An absorbent article is defined by a pair of opposing longitudinal edges 20;22 and a pair of opposing transverse edges 24;26. An absorbent core 18 has at least a first 28 and a second 30 region, the average density of the absorbent core 18 in these first and second regions 28, 30 being lower than the average density of the absorbent core 18 surrounding said first and second regions 28;30, the first and second lower density regions 28;30 being arranged symmetrically about the longitudinal center line A of the article such that each of the first and second lower density regions 28;30 extends to the respective longitudinal edge 20;22 of the absorbent core. The distance ax varying along the longitudinal direction of the article. A minimum distance a1 is located at least in the transition 32 between the crotch portion 14 and the front portion 12.Type: GrantFiled: December 28, 2007Date of Patent: April 10, 2012Assignee: SCA Hygiene Products ABInventors: Leif Wallström, Camilla Elfsberg, Solgun Drevik
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Patent number: 8142410Abstract: A fluid absorption mat for use in a medical environment, the fluid absorption mat being a substantially planar mat having at least one fluid absorption layer. At least two absorption portions, presenting substantially juxtaposed projections on a principle plane of the mat, and present different absorption capacities are provided. Furthermore, use of the fluid absorption mat in a medical environment is provided.Type: GrantFiled: September 14, 2006Date of Patent: March 27, 2012Assignee: Absorbest, ABInventor: Rolf Rovaniemi
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Patent number: 8134043Abstract: A disposable absorbent product (20) such as, e.g. a baby diaper, an adult incontinence pad, a sanitary napkin or the like, includes a liquid pervious topsheet (24), a liquid impervious backsheet (26), and an absorbent core (28) positioned between the topsheet (24) and the backsheet (26). The absorbent core (28) has a liquid receiving surface directed towards said topsheet (24), and the absorbent core (28) is provided with at least one embossing (50) forming a channel for liquid drainage at said receiving surface. Preferably an acquisition layer (40) is provided between the topsheet (24) and the absorbent core (28). The acquisition layer preferably extends into the embossing (50), while a resilient absorbent member (30) is preferably provided between the absorbent core (28) and the acquisition layer (40) in the form of stripes arranged longitudinally spaced along the upper longitudinal sides of the channel (50) formed by the embossing.Type: GrantFiled: August 31, 2005Date of Patent: March 13, 2012Assignee: The Procter and Gamble CompanyInventors: Remo Di Girolamo, Ivana Spinelli, Fabrizio Tinghino
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Patent number: 8124828Abstract: A wearable absorbent article comprises an outer cover and an absorbent core assembly. At least a portion of the outer cover is joined to the absorbent core assembly over at least a first attachment area and a second attachment area. The overall lateral width of the second attachment area is less than the overall lateral width of the first attachment area. At least a portion of the second attachment area is disposed in a hip region of the article. The first attachment area is disposed longitudinally outboard from the second attachment area.Type: GrantFiled: May 19, 2009Date of Patent: February 28, 2012Assignee: The Procter & Gamble CompanyInventors: Mark James Kline, Nezam Malakouti, John Glasgow Burns, Jr.
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Publication number: 20120035567Abstract: An apparatus 100 of the present invention for manufacturing an absorbent article which includes a liquid-permeable topsheet, a liquid-impermeable backsheet and an absorber provided between the topsheet and the backsheet, is provided with a lower press roller 110B which presses outer edge areas 81 which correspond to outer edges of the extended portions 50 of a continuous body constituted by the plurality of continuous sheets. The lower press roller 110B is provided with a plurality of rear end protrusions 115 which protrude outward in a radial direction of the roller and press rear end inclined areas 81S which correspond to the outside-to-inside inclined areas of the outer edge areas 81. An extending direction LD2 of the rear end protrusions 115 differ from an extending direction of a rear end outline 87 extending along the shapes of rear end inclined portions 50B in the rear end inclined areas 81S.Type: ApplicationFiled: January 25, 2010Publication date: February 9, 2012Applicant: UNI-CHARM CORPORATIONInventors: Kenichiro Kuroda, Takayuki Okabe
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Publication number: 20120035566Abstract: An absorbent article includes a pair of grooves in which each of the grooves has a central region in the longitudinal direction has a first section which is formed so as to be curved in a convex manner at an inside of a widthwise direction of the absorption layer; a second section and a third section which is linked with each end of the first section and is formed so as to be curved in a convex manner at an outside of the widthwise direction. A radius of curvature of the first section is smaller than the radius of curvature of either the second section or the third section.Type: ApplicationFiled: September 11, 2009Publication date: February 9, 2012Applicant: UNICHARM CORPORATIONInventors: Minako Sagisaka, Saori Okada, Kazuya Nishitani, Toshihisa Hayashi
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Patent number: 8093448Abstract: An absorbent article including a absorbent core having a plurality of first regions and a second region, each one of said first regions being arranged in spaced relationship from each of the other first regions and each of the first regions being entirely surrounded by the second region.Type: GrantFiled: August 5, 2008Date of Patent: January 10, 2012Assignee: Johnson & Johnson Ind. E. Com LTDAInventors: Antonio Carlos Ribeiro De Carvalho, Márcia Helena Teixeira Fajolli, Maria Márcia R. Caldas Salles
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Patent number: 8088967Abstract: 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: GrantFiled: May 28, 2009Date of Patent: January 3, 2012Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Richard L. Underhill, Michael J. Niemeyer, Marianne K. Leick
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Publication number: 20110319851Abstract: To provide an absorbent article which is a relatively thin absorbent article and which is hardly twisted while fitting to the body and exhibits excellent absorptivity. An absorbent article comprising at least a liquid-permeable sheet, a liquid-impermeable sheet, and an absorption body sandwiched between the liquid-permeable sheet and the liquid-impermeable sheet, wherein on the skin-contact surface side of the absorbent article, a compressed groove is disposed in both longitudinal edge parts at least in the center region of the absorption body so as to integrate the liquid-permeable sheet and the absorption body and a plurality of point-like compressed parts are disposed at intervals.Type: ApplicationFiled: December 24, 2009Publication date: December 29, 2011Applicant: UNICHARM CORPORATIONInventors: Jun Kudo, Akira Hashino
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Patent number: 8071837Abstract: An apparatus for manufacturing an absorbent body for an absorbent article includes a conveying mechanism for conveying a continuous absorbent sheet, a slitting mechanism configured so that a plurality of slitting blades are pressed against the absorbent sheet conveyed by the conveying mechanism, the slitting blades extending in a predetermined direction, a cutting mechanism for cutting the absorbent sheet against which the slitting blades are pressed and forming the absorbent body, and a stretching mechanism arranged upstream of the cutting mechanism and for stretching, in a direction orthogonal to the predetermined direction, the absorbent sheet against which the slitting blades are pressed, and forming slits in the absorbent sheet.Type: GrantFiled: November 13, 2006Date of Patent: December 6, 2011Assignee: Uni-Charm CorporationInventors: Tatsuya Saeki, Jun Kudo
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Publication number: 20110288514Abstract: Described is an absorbent article that includes at least a liquid-permeable sheet, a liquid-impermeable sheet, and an absorption body sandwiched between the liquid-permeable sheet and the liquid-impermeable sheet. A pair of right and left compressed grooves are formed along the longitudinal direction. Each compressed groove is separated into a right or left compressed groove located in the longitudinal side edge part at least in the center region of the absorption body, a front-side compressed groove located in the longitudinal front part of the side edge part, and a rear-side compressed groove located in the longitudinal rear part of the side edge part and out of these compressed grooves. The compressed groove located on the widthwise innermost side is formed to allow its end part in the separation portion to run in parallel with the longitudinal centerline or face outwardly in the width direction.Type: ApplicationFiled: December 24, 2009Publication date: November 24, 2011Applicant: Uni-Charm CorporationInventors: Kenichiro Kuroda, Yuki Noda, Shinpei Komatsu, Osamu Nakajima
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Patent number: 8062277Abstract: A method is disclosed for absorbing anal leakage, such as fecal material, blood or flatulence. The method includes positioning an intergluteal absorbent pad external to the anal orifice of a subject such that the pad is retained between the buttocks, and any discharge from the anus is absorbed by the absorbent material of the pad. The pad can have a variety of shapes, including major and minor portions that are portions of spheres or ellipsoids, or which are elongated and have cross-sections that are circular or ellipsoid. The smaller minor portion of the pad is positioned against the anal orifice to minimize pressure exerted in this sensitive area, while the larger major portion is retained in the less sensitive intergluteal space. Insertion and retention of the pad adjacent to the anus helps alleviate symptoms of the hemorrhoids, absorbs leakage, and can also be used as a reservoir to administer medication.Type: GrantFiled: April 3, 2009Date of Patent: November 22, 2011Inventor: William H. Fleming
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Patent number: 8039684Abstract: An absorbent article includes 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: GrantFiled: December 21, 2005Date of Patent: October 18, 2011Assignee: SCA Hygiene Products ABInventors: Ted Guidotti, Gunnar Edvardsson
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Patent number: 8039685Abstract: A feminine hygiene article having a body-facing surface, a first end region and a second end region. The feminine hygiene article is for placement in an undergarment having a crotch portion bounded on opposite sides by portions of curved leg openings, the feminine hygiene article comprising at least one functional enhancement indicator visible from said body-facing surface, the functional enhancement indicator corresponding to at least one functionally-enhanced portion of the feminine hygiene article. The feminine hygiene article can be a sanitary napkin, a pantiliner, or an incontinence pad.Type: GrantFiled: December 15, 2004Date of Patent: October 18, 2011Assignee: The Procter & Gamble CompanyInventors: Peter Charles Mason, Jr., Ronald Bosman Visscher, Jeanne Marie Hughes, Folke Schlueter, Emma Somma, Giovanni Carlucci, Paul Thomas Weisman
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Publication number: 20110251575Abstract: An absorbent article includes at least a liquid-permeable sheet, a liquid-impermeable sheet, and an absorption body sandwiched between the liquid-permeable sheet and the liquid-impermeable sheet. The absorbent article has a pair of compressed grooves for integrating from the liquid-permeable sheet to the absorption body formed along the longitudinal direction. The compressed groove has a high-compressed part and a low-compressed part. The high-compressed part is composed of nearly transverse high-compressed parts formed to almost fully traverse the compressed groove in the widthwise direction and disposed at intervals in the longitudinal direction of the compressed groove and non-transverse high-compressed parts formed not to traverse the compressed groove and disposed at intervals in the region between nearly transverse high-compressed parts, and by the arrangement of the non-transverse high-compressed parts.Type: ApplicationFiled: December 24, 2009Publication date: October 13, 2011Applicant: UNI-CHARM CORPORATIONInventors: Kenichiro Kuroda, Yuki Noda
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Patent number: 8034991Abstract: An absorbent article including a first end region, a second end region and a central region, a plurality of channels arranged in each of the first and second end regions, at least one channel arranged in the central region and extending in a longitudinal direction of the article, the at least one channel being connected at each end thereof to the plurality of channels in the first end region and the plurality of channels in the second end region.Type: GrantFiled: April 29, 2009Date of Patent: October 11, 2011Assignee: Johnson & Johnson Ind. E Com. LtdaInventors: Fernanda Bruzadin, Francisco J. V. Hernandez, Fernanda Wiermann Paques
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Patent number: 8030535Abstract: A sanitary napkin has a facing layer joined to a backsheet, and an absorbent core disposed between the facing layer and backsheet. The facing layer has a first region comprising a plurality of apertures, and a second region comprising a plurality of raised, out-of-plane deformations that can be soft, resilient, rib-like elements. In one embodiment, the sanitary napkin also comprises a deep-embossed channel.Type: GrantFiled: November 24, 2003Date of Patent: October 4, 2011Assignee: The Procter & Gamble CompanyInventors: John Lee Hammons, Susan Nicole Lloyd, Stewart Lawrence Taub
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Patent number: 7994386Abstract: The present invention provides an absorbent article having superior surface characteristics and improved absorbing ability. The absorbent article of the present invention includes a liquid permeable top sheet 10 disposed at a skin-side, a liquid impermeable back sheet 20 disposed at a garment side, and an absorbent body interposed between the top sheet and the back sheet. An apparent thickness (t2) of the top sheet 10 is 70% to 95% to an apparent thickness (t1) of the panty liner 1. The absorbent body 30 consists of a structure, in which a capillary rise height (h2) is higher than a capillary rise height (h1) of the top sheet 10.Type: GrantFiled: September 20, 2006Date of Patent: August 9, 2011Assignee: Uni-Charm CorporationInventors: Yuka Tokura, Yukihiro Ito, Toshihisa Hayashi
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Patent number: 7994385Abstract: The absorbent article according to the present invention includes a laminate structure including cover, transfer layer, core and barrier, the absorbent core having a first central region and second region concentrically surrounding the first region.Type: GrantFiled: August 5, 2008Date of Patent: August 9, 2011Assignee: Johnson & Johnson Ind. E Com. LtdaInventor: Francisco J. V. Hernandez
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Patent number: 7982091Abstract: An absorptive article includes a centrally high portion formed in the widthwise central portion of a napkin and made high on the side of a using face and a pair of left and right embosses formed individually on the two sides of the centrally high portion and extending substantially in the longitudinal direction of the napkin. The paired left and right embosses include a first bulging emboss having its individual emboss lines so formed of curves having centers of curvature on the center side of the napkin as to form an enlarged area of the emboss spacing width and a second bulging emboss having its individual emboss lines so formed of curves having centers of curvature on the center side of the napkin as to continue to the rear portion of the first bulging emboss through an intermediate arcuate emboss formed of curves having centers of curvature on the outer side of the napkin.Type: GrantFiled: November 29, 2005Date of Patent: July 19, 2011Assignee: Daio Paper CorporationInventor: Satoko Konawa
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Patent number: 7959622Abstract: A sanitary napkin includes a liquid-permeable topsheet, a backsheet, and a liquid-absorbent layer disposed between the topsheet and the backsheet. The liquid-absorbent layer has a vagina-facing region on a longitudinal centerline of the sanitary napkin and side regions on both sides of the vagina-facing region. The liquid-absorbent layer has a greater thickness and a greater bending stiffness in the vagina-facing region than in the side regions to provide hinge lines along boundaries between the vagina-facing region and the side regions.Type: GrantFiled: January 31, 2006Date of Patent: June 14, 2011Assignee: Uni-Charm CorporationInventors: Jun Kudo, Takuya Miyama
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Publication number: 20110130737Abstract: An absorbent article includes at least a liquid-permeable sheet, a liquid-impermeable sheet, and an absorber sandwiched between the liquid-permeable sheet and the liquid-impermeable sheet. The absorber includes an absorbing layer center part and an absorbing part formed in the periphery of the absorbing layer center part. On the skin-contact surface side of the absorbent article, compressed grooves are at least symmetry with respect to the longitudinal centerline and surround the absorbing layer center part. The compressed grooves have a pair of right and left intermittent portions across the longitudinal centerline. On the skin-non-contact surface side of the absorber, a space part being nearly convex toward the skin-contact surface side and formed between the absorber and the liquid-impermeable sheet, is present in the side part of at least a part of a compressed groove out of the compressed grooves provided along widthwise right and left side edges.Type: ApplicationFiled: April 7, 2009Publication date: June 2, 2011Applicant: UNICHARM CORPORATIONInventors: Minako Sagisaka, Kazuya Nishitani
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Patent number: 7943814Abstract: Differentially densified fibrous structures, methods for making same, and processes for treating fibers used in the fibrous structures are provided. More particularly, fibrous structures comprising two or more regions, at least one of which exhibits a density that is at least 1.6 times greater than another region within the fibrous structure, methods for making such fibrous structures and non-naturally occurring fibers useful in such fibrous structures are provided.Type: GrantFiled: March 1, 2006Date of Patent: May 17, 2011Assignee: The Procter & Gamble CompanyInventors: Robert Stanley Ampulski, Dale Gary Kavalew
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Patent number: 7938814Abstract: A disposable diaper comprising a liquid permeable topsheet 2, a liquid impermeable backsheet 3, and a liquid retentive absorbent member 4 and having a substantially oblong shape, the absorbent member 4 in the crotch portion having a middle absorbent portion 42 which occupies the middle 3/7 of the width of the absorbent member 4 and side absorbent portions 43 which each occupy the outermost 1/7 of the width of the absorbent member 4, wherein each side absorbent portion 43 has a larger unit absorption capacity than the middle absorbent portion 42, hydrophobic sheets 3 and 21 are disposed on the lateral outer edge of each side absorbent portion 43 to cover from the upper to lower surfaces of the edge, and an elastic member 71 is disposed in the part having each side absorbent portion 43 in the longitudinal direction of the side absorbent portion 43.Type: GrantFiled: June 24, 2008Date of Patent: May 10, 2011Assignee: Kao CorporationInventors: Takao Koyama, Hidekazu Ito, Hiroshi Inada, Takahiro Arimura
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Patent number: 7922705Abstract: Differentially densified fibrous structures, methods for making same, and processes for treating fibers used in the fibrous structures are provided. More particularly, fibrous structures comprising two or more regions, at least one of which exhibits a density that is at least 1.6 times greater than another region within the fibrous structure, methods for making such fibrous structures and non-naturally occurring fibers useful in such fibrous structures are provided.Type: GrantFiled: October 3, 2005Date of Patent: April 12, 2011Assignee: The Procter & Gamble CompanyInventor: Robert Stanley Ampulski
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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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Publication number: 20110071486Abstract: An absorbent article with high fitting property and high absorptivity, where the end part is less deformed, is provided. An absorbent article comprising at least a liquid-permeable sheet, a liquid-impermeable sheet, and an absorber sandwiched between the liquid-permeable sheet and the liquid-impermeable sheet, wherein the absorber comprises a first absorbing part and a second absorbing part formed nearly on the center part of the first absorbing part and smaller in the area than the first absorbing part, and a compressed groove is continuously provided in nearly closed form to extend from the peripheral edge region in the longitudinal direction of the second absorbing part to the first absorbing part.Type: ApplicationFiled: February 20, 2009Publication date: March 24, 2011Inventors: Hiroyuki Harada, Tatsuya Tamura
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Patent number: 7893314Abstract: A breathable backsheet (1) includes a water vapor permeable first layer (2) and a water vapor permeable second layer (3) for an absorbent article (4), where the backsheet (1) is water vapor permeable in a Z-direction. The backsheet (1) includes a condensation zone (7) between the two layers (2, 3). The first layer (2) is adapted to allow a first amount m1 of mass flow water vapor to pass the first layer (2) in the Z-direction, wherein the second layer (3) is adapted to allow a second amount m2 of mass flow water vapor to pass the second layer (3) in the Z-direction. The condensation zone (7) is adapted to temporary condense and shore an amount t•.mc of water vapor such that no formation of condensed of water vapor will occur on the outside (6, 11) of the backsheet (1).Type: GrantFiled: October 29, 2004Date of Patent: February 22, 2011Assignee: SCA Hygiene Products ABInventors: Chatrine Stridfeldt, Solgun Drevik
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Patent number: 7888548Abstract: An absorbent layer structure for use as an absorbent body in an absorbent article includes a first surface layer having cellulose fluff pulp, a second surface layer having cellulose fluff pulp, and an inner layer arranged between the surface layers having a mixture of cellulose fluff pulp and 5-90% by weight superabsorbent material, the cellulose fluff pulp in the surface layers having a mat strength which is lower than the mat strength in the inner layer by at least 1 N measured at a weight per unit area of 300 g/m2 and a bulk of 4.5 cm3/g or less and preferably a mat strength which is lower than the mat strength in the inner layer by at least 2 N measured at a weight per unit area of 300 g/m2 and a bulk of 4.5 cm3/g or less.Type: GrantFiled: December 28, 2006Date of Patent: February 15, 2011Assignee: SCA Hygiene Products ABInventor: Ted Guidotti
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Patent number: 7888549Abstract: An absorbent article having an absorbent core and a cover enclosing the absorbent core. The absorbent core is provided with at least two slits or grooves diverging from a crotch region of the absorbent core in a direction towards one transverse edge of the absorbent core and terminating inside the respective longitudinal edge as well as the respective transverse edge of the absorbent core. These slits or grooves form folding guides along which the article can be formed into a shape having a narrow crotch width.Type: GrantFiled: May 29, 2007Date of Patent: February 15, 2011Assignee: SCA Hygiene Products ABInventors: Filip Jansson, Marie Johansson, Fredrik Asp
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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: 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: 7834236Abstract: A multi-layered web is provided that includes an elastic web bonded to an inelastic web. The inelastic web has extensible and inextensible regions arranged along the machine direction. In the extensible regions, the inelastic web is bonded to the elastic web in a creped structure that is extensible by virtue of the creping. A continuous process is provided to manufacture a multi-layer web having extensible regions that are conjoined with regions that are inextensible by varying the tension that is applied during manufacture of the multi-layer web. The apparatus comprises an elastic web that is fed into a bonding nip, into which one or more inelastic webs are also provided. The elastic web is fed into the bonding nip under a tension that is alternated between a low value that is sufficient to ensure processing stability, and a higher value that provides an elongation to the elastic web.Type: GrantFiled: April 25, 2007Date of Patent: November 16, 2010Assignee: Tredegar Film Products Corp.Inventors: Jeffrey Alan Middlesworth, Stephen Donald Bruce, Todd Richard Skochodopole, Matthew John O'Sickey, Andrew James Peacock