With Additional Deformation Patents (Class 162/113)
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Patent number: 6468392Abstract: The present invention is a method of applying a chemical treating agent to a cellulose web. The invention is further a means of increasing the bulk, absorbency and pattern definition in an embossed cellulose web without losing softness in the web. Finally, the invention includes products produced by the foregoing processes.Type: GrantFiled: September 26, 1997Date of Patent: October 22, 2002Assignee: Fort James CorporationInventors: T. Philips Oriarian, Galyn A. Schulz, Dale T. Gracyalny, Michael E. Hennes, Thomas N. Kershaw, Anthony O. Awofeso
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Patent number: 6455129Abstract: The invention relates to embossing single-ply paper products, for example, paper towels, tissue and napkins, in which an improved embossing arrangement is used which is particularly suitable for paper products which have been processed so as to impart undulations whose axes extend in a principal undulatory direction, typically in the machine direction. The absorbent sheet typically further includes undulations which extend in the cross (transverse direction) of the web such that the absorbent sheet has a biaxially undulatory structure. The undulations may be formed by the use of an undulatory creping blade. Defined parameters accommodate: the distance at which the undulations are spaced, the total surface area of the design (embossing) elements, the width and length of the embossing elements and the aspect ratio of the elements, as well as the angular orientation of the embossing elements with respect to the undulations.Type: GrantFiled: November 9, 2000Date of Patent: September 24, 2002Assignee: Fort James CorporationInventors: Thomas N. Kershaw, Dale T. Gracyalny
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Patent number: 6454901Abstract: The object of the present invention is to improve the adhesiveness of the paper body to the surface of a cylindrical Yankee dryer in the manufacturing process of crepe paper products in order to make a high-grade crepe form. This is a manufacturing process of high-grade crepe paper products by attaching a paper body (P) to the surface of a rotating Yankee dryer (Y) and separating said paper body P through a doctor blade (D), wherein a crepe assistant (C) including 0.1 &mgr;g˜10 &mgr;g/m2 of molybdenum disulfide is continuously fed directly onto the surface of the cylindrical Yankee dryer (Y) while the paper body P is continuously fed to the cylindrical Yankee dryer. An improvement in the adhesiveness of the paper body brought about a lower crepe ratio and enabled to manufacture high-grade crepe paper products provided with uniformly fine and delicate crepe “microholds.Type: GrantFiled: April 24, 2001Date of Patent: September 24, 2002Assignee: Maintech Co., Ltd.Inventors: Kunio Sekiya, Hiroshi Sekiya
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Patent number: 6451166Abstract: The present invention relates to biaxially undulatory single-ply and multi-ply tissues, single-ply and multi-ply towels, single-ply and multi-ply napkins and other personal care and cleaning products as well as novel creping blades and novel processes for the manufacture of such paper products. The present invention is directed to tissue and towel product having highly desirable bulk, appearance and softness characteristics produced by utilizing a novel undulatory creping blade having a multiplicity of serrulations formed in its rake surface which presents differentiated creping angles and/or rake angles to the web as it is being creped. The invention is also directed to a novel blade having an undulatory rake surface having trough-shaped serrulations in the rake surface of the blade. The undulatory creping blade has a multiplicity of alternating serrulated sections of either uniform depth or a multiplicity of arrays of serrulations having non-uniform depth.Type: GrantFiled: February 9, 2000Date of Patent: September 17, 2002Assignee: Fort James CorporationInventors: Robert J. Marinack, Anthony O. Awofeso, Frank D. Harper, Thomas N. Kershaw
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Patent number: 6447643Abstract: Method of producing an impulse dried wetlaid fibrous web-shaped material, such as paper or non-woven, having a three-dimensional pattern of alternating raised and recessed portions, which have been provided in connection with impulse drying, at which the wet fibrous web is passed through at least one press nip (12) comprising rotatable roll (13) which is heated and that the fibrous web during the passage through the press nip is given a three-dimensional pattern of alternating raised and recessed portions either by means of a patterned wire (11) and/or by a pattern on the heated roll (13) To the fibrous web there has been added a material that softens or melts in the temperature interval 100-400° C. and that at least the parts of the fibrous web that is located closest to the raised portions of the heated roll (13) are heated to such a high temperature that said material softens or melts and by that provides an increased amount of bonding points in the fibrous web.Type: GrantFiled: April 2, 2001Date of Patent: September 10, 2002Assignee: SCA Hygiene Products ABInventors: Lars Fingal, Bernt Johansson, Lennart Reiner
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Patent number: 6447640Abstract: A process for making absorbent sheet includes: (a) depositing an aqueous furnish of cellulosic fiber on a forming fabric; (b) dewatering the wet web to a consistency of from about 15 to about 40 percent; (c) transferring the dewatered web from the forming fabric to another fabric traveling at a speed of from about 10 to about 80 percent slower than the forming fabric; (d) wet-shaping the web on an impression fabric whereby the web is macroscopically rearranged to conform to the surface of the impression fabric; and (e) impingement air drying the web. The process is particularly suitable for making high bulk products form difficult to process furnishes such as recycle furnishes and for making high basis weight products without compressive dewatering with a papermaking felt.Type: GrantFiled: April 18, 2001Date of Patent: September 10, 2002Assignee: Georgia-Pacific CorporationInventors: Gary M. Watson, Steven L. Edwards
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Patent number: 6444089Abstract: Method of producing a paper having a three-dimensional pattern of alternating raised and recessed portions which is given the paper in connection with impulse drying. The paper web has a varying material composition as seen in its thickness direction, so that it at least in an outer layer contains an amount of a material that softens, melts or hardens in the temperature interval 100-400° C. or in some other way contributes in stabilizing the pattern structure that has been given the paper. It is further referred to an impulse dried paper produced according to the method.Type: GrantFiled: April 2, 2001Date of Patent: September 3, 2002Assignee: SCA Hygiene Products ABInventors: Holger Hollmark, Lennart Reiner, Thomas Billgren, Kaveh Tondkar, Mats Söderberg, Bengt Järrehult
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Patent number: 6440267Abstract: Soft tissues, such as facial tissues, having improved softness can be produced by incorporating two different softening compounds into the tissue, namely an imidazolinium quaternary compound and a cationic amidoamine compound.Type: GrantFiled: December 6, 2000Date of Patent: August 27, 2002Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Michael John Rekoske, Louise Cynthia Ellis Coe, Frank Gerald Druecke, James Martin Kaun, Sherri Lynn Laufenberg
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Patent number: 6432267Abstract: A wet crepe, impingement-air dried process for producing absorbent paper sheet is disclosed. In preferred embodiments, the process utilizes recycle furnish and the web is delaminated as it is wet-creped from a Yankee dryer. Particular embodiments include high consistency (after-crepe) wet-shaping prior to impingement air drying on a drilled vacuum roll.Type: GrantFiled: December 8, 2000Date of Patent: August 13, 2002Assignee: Georgia-Pacific CorporationInventor: Gary M. Watson
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Publication number: 20020104628Abstract: A wet crepe, impingement-air dried process for producing absorbent paper sheet is disclosed. In preferred embodiments, the process utilizes recycle furnish and the web is delaminated as it is wet-creped from a Yankee dryer. Particular embodiments include high consistency (after-crepe) wet-shaping prior to impingement air drying on a drilled vacuum roll.Type: ApplicationFiled: December 8, 2000Publication date: August 8, 2002Inventor: Gary M. Watson
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Patent number: 6423180Abstract: The present invention is directed to a paper product which is very flexible, tough when wet, and has a high bulk. In particular, the paper towel has a dry, specific modulus less than 0.0040 kilograms, a bulk greater than 10 cubic centimeters per gram and a wet strength ratio greater than 0.40.Type: GrantFiled: November 30, 1999Date of Patent: July 23, 2002Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Janica S. Behnke, Kenneth C. Larson
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Patent number: 6420013Abstract: Disclosed is a soft, textured, multi-ply tissue paper product. The tissue paper product has at least one ply of multi-region construction with a first region that is raised above a second region. The ply of multi-region construction is orientated so that its raised region is directed toward the exterior of the tissue paper product. A chemical softening composition is surface applied to at least a portion of the raised region of the ply comprising the multi-ply tissue paper product. The chemical softener preferably includes an effective amount of a softening active ingredient; a vehicle in which the softening active ingredient is dispersed; and an electrolyte dissolved in the vehicle. The electrolyte causes the viscosity of the composition to be less than the viscosity of a dispersion of the softening active ingredient in the vehicle alone.Type: GrantFiled: August 27, 1999Date of Patent: July 16, 2002Assignee: The Procter & Gamble CompanyInventors: Kenneth Douglas Vinson, Paul Dennis Trokhan, Monica Ho-Kleinwaechter
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Patent number: 6419790Abstract: The present invention is a method of making an ultra soft, multi-ply tissue using wet press technology and the product produced thereby.Type: GrantFiled: August 26, 1997Date of Patent: July 16, 2002Assignee: Fort James CorporationInventors: Joseph C. Leege, Ranga Ramesh
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Patent number: 6419789Abstract: The present invention is a through-air-drying process for producing a fibrous web that possesses not only softness and absorbency but also strength. The method of the present invention monitors and controls the overall charge in the headbox.Type: GrantFiled: October 11, 1996Date of Patent: July 16, 2002Assignee: Fort James CorporationInventors: Kang Chang Yeh, Gary L. Worry, Thomas N. Kershaw, Henry S. Ostrowski
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Publication number: 20020084046Abstract: The present invention includes a process for making paper. The process may include the steps of providing pulp fibers in a chest and adding an enzymatic material to the pulp fibers at a storing stage for decreasing cellulose crystals. Furthermore, the process may include adding a strength agent to the pulp fibers at the storing stage.Type: ApplicationFiled: September 29, 1998Publication date: July 4, 2002Inventors: JAY CHIEHLUNG HSU, RICHARD IGNATIUS WOLKOWICZ
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Publication number: 20020079073Abstract: A novel paper article, a method of making a paper product, and an embossing roll are disclosed for providing a paper surface region having a minority of fiber to fiber bonds broken in the paper surface region to a depth less than about 0.02 mm from the paper surface. In one aspect, the roughened embossing roll includes protuberances or depressions sized at less than about 0.1 mm. In one aspect, the roughened embossing roll includes protuberances or depressions adapted to produce paper product surface deformations in the paper surface, wherein the paper product surface deformations are invisible to an unaided human eye. The present invention provides a paper product having higher perceived softness while maintaining tensile strength.Type: ApplicationFiled: November 8, 2001Publication date: June 27, 2002Inventor: Lee Delson Wilhelm
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Patent number: 6379496Abstract: The present invention is a method for making a high quality paper product at improved process efficiency through the use of high steam levels in the Yankee dryer. The product according to the present invention is creped from the Yankee dryer while it is still wet and is then drying is completed using conventional methods. Products made according to the present invention exhibit improved absorbency, softness and bulk.Type: GrantFiled: February 13, 2001Date of Patent: April 30, 2002Assignee: Fort James CorporationInventors: Steven L. Edwards, Robert J. Marinack
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Patent number: 6350349Abstract: Cellulosic webs, such as tissue webs, can be dewatered to consistencies of about 70 percent or greater in a high intensity extended nip press while retaining a substantial amount of bulk. While webs intended for use as tissues containing conventional furnishes become overly densified when passed through a high intensity extended nip press, furnishes containing certain types of fibers, such as chemically cross-linked or heat-treated fibers, resist compression and allow the compressed web to retain a high level of bulk after a high degree of dewatering.Type: GrantFiled: May 10, 1996Date of Patent: February 26, 2002Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Michael Alan Hermans, Charles Edward Friedbauer
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Patent number: 6348131Abstract: The invention relates to embossing multi-ply paper products, for example, paper towels, tissue and napkins, in which an improved embossing arrangement is used which is particularly suitable for paper products which have been processed so as to impart undulations whose axes extend in a principal undulatory direction, typically in the machine direction. The absorbent sheet typically further includes undulations which extend in the cross (transverse direction) of the web such that the absorbent sheet has a biaxially undulatory structure. The undulations may be formed by the use of an undulatory creping blade. Defined parameters accommodate: the distance at which the undulations are spaced, the total surface area of the design (embossing) elements, the width and length of the embossing elements and the aspect ratio of the elements, as well as the angular orientation of the embossing elements with respect to the undulations.Type: GrantFiled: November 9, 2000Date of Patent: February 19, 2002Assignee: Fort James CorporationInventors: Thomas N. Kershaw, Dale T. Gracyalny
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Patent number: 6344110Abstract: A process for producing paper having a three-dimensional structure of alternating raised and recessed portions including passing a wet paper web through a heated press nip so the paper web is simultaneously dried by means of impulse drying and given a three dimensional structure. The heated press nip includes a heated pressure roll with a three dimensional pattern of alternating raised and recessed portions in its surface and a compressible surface. The compressible surface can be a compressible press felt which supports the wet paper web prior to and through the heated press nip. The compressible press felt may be pressed against a resilient compressible surface in the heated press nip away from the heated cylinder. The wet paper web may be a papermaking pulp containing at least 10%, and preferably at least 30% or 50% by weight of a high-yield pulp such as TMP or CTMP.Type: GrantFiled: June 19, 2000Date of Patent: February 5, 2002Assignee: SCA Hygiene Products ABInventors: Lennart Reiner, Holger Hollmark, Hans-Jürgen Lamb, Hans Wallenius
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Patent number: 6344111Abstract: A novel paper article, a method of making a paper product, and an embossing roll are disclosed for providing a paper surface region having a minority of fiber to fiber bonds broken in the paper surface region to a depth less than about 0.02 mm from the paper surface. In one aspect, the roughened embossing roll includes protuberances or depressions sized at less than about 0.1 mm. In one aspect, the roughened embossing roll includes protuberances or depressions adapted to produce paper product surface deformations in the paper surface, wherein the paper product surface deformations are invisible to an unaided human eye. The present invention provides a paper product having higher perceived softness while maintaining tensile strength.Type: GrantFiled: April 1, 1999Date of Patent: February 5, 2002Assignee: Kimberly-Clark Wordwide, Inc.Inventor: Lee Delson Wilhelm
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Patent number: 6315864Abstract: An improved cloth-like base web is disclosed. In particular, the base web of the present invention has a cloth-like look and feel and has improved absorbency. The base web is made by first hydroneedling a web containing pulp and/or staple fibers. A bonding material is then applied to at least one side of the web and the web is creped on at least one side. By combining a hydroneedling operation with a creping operation, a base web is produced that is strong, stretchable, very soft and absorbent.Type: GrantFiled: October 30, 1997Date of Patent: November 13, 2001Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Ralph L. Anderson, Fritz Radwanski, Henry Skoog, Donald E. Waldroup
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Publication number: 20010032712Abstract: A method of imparting bulk and/or visual aesthetics to a tissue basesheet involves pressing the basesheet with a felt having a raised pattern on it so that the pattern becomes inherent in the sheet. A pattern is stitched into a carrier layer which is joined to a substrate to form the felt. As the basesheet is pressed into the felt, the raised pattern displaces fibers in the sheet, effectively inducing the pattern in the basesheet. The novel felt with a raised patterned layer is also disclosed.Type: ApplicationFiled: December 28, 2000Publication date: October 25, 2001Inventors: Charles E. Friedbauer, Michael A. Hermans, John C. Bolt, Michael C. Johnson
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Patent number: 6302998Abstract: Webs can be embossed using matched embossing elements with shoulders located off-centered. Such a configuration increases the bulk of the web and maintains the web's strength. The shoulder of one roll is located above or below the embossing surface mid-plane. The shoulder of the second roll substantially matches the off-centered elements of the first roll.Type: GrantFiled: December 7, 1999Date of Patent: October 16, 2001Assignee: Kimberly-Clark Worlwide, Inc.Inventor: William H. Burgess
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Patent number: 6296736Abstract: A method of making sanitary paper products from recycled newspapers. The method includes the steps of: (a) pulping newspapers in water with agitation to produce a pulp slurry, the pulp from the newspapers having an average fines content of greater than about 40% and a Canadian Standard Freeness of less than about 250; (b) washing the pulp, whereby the fines content is reduced to less than about 35% and the Canadian Standard Freeness is increased to more than about 300; (c) introducing the treated pulp at a papermaking consistency into the headbox of a paper making machine; (d) adding from about 0.01% to about 1.5% of a surfactant system to the treated pulp; and (e) utilizing the treated pulp in a paper making process to produce sanitary paper products.Type: GrantFiled: October 30, 1997Date of Patent: October 2, 2001Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Jay Chiehlung Hsu, Nauman Noorali Lakhani
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Patent number: 6287421Abstract: A method of adding materials to a web is disclosed. The method includes mixing a material into an air supply for an air knife, directing the air knife onto a surface of at least one of a pair of embossing rolls, and passing a paper web between the pair of embossing rolls. The embossing rolls coat at least one surface of the paper web with the material on the surface of the at least one embossing roll.Type: GrantFiled: May 20, 1999Date of Patent: September 11, 2001Assignee: Fort James CorporationInventors: John H. Dwiggins, Orlin C. Kuehl, Michael S. Heath, Brian J. Schuh, James C. Hornby, Galyn A. Schulz, Rodney E. Pollock
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Patent number: 6248212Abstract: A web structure is formed by a process including first through-air drying the fibrous web comprising at least about 20% non-premium fiber, next applying a bonding material to the fibrous web, and next creping the fibrous web to form the web structure having a BLK/BW and CCDWT at least 85% of a wet-pressed web structure comprising 100% premium fiber. The web structure may alternatively or in addition to have a TWA and/or BLK/BW greater than the TWA and/or BLK/BW of a through-air-dried, bonded, and creped web structure comprising 100% premium fiber. The process may be repeated on the second side. The web structure may comprise a combination of hardwood, softwood, CTMP, and/or recycled fibers. The web structure may include at least about 40% recycled fibers.Type: GrantFiled: December 30, 1997Date of Patent: June 19, 2001Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Ralph L. Anderson, Tom C. Saffel
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Patent number: 6248211Abstract: A method for making a throughdried tissue sheet is disclosed. The method includes the steps of depositing an aqueous suspension of papermaking fibers onto an endless forming fabric to form a wet web. The wet web is then transferred to a throughdrying fabric such that the wet web has a fabric side in contact with the throughdrying fabric and an opposite air side facing away from the throughdrying fabric. The wet web is routed over a throughdryer to dry the web. The web is then transferred to a Yankee dryer for further drying and is creped from the Yankee dryer to obtain a creped web having a basis weight of about 15.2 pounds per 2880 square feet. The creped web in then calendered in a calendering unit that includes a smooth calender roll and a resilient calender roll. The resilient calender roll has an exterior covering formed of ethylene propylene diene polymer and the creped web is oriented such that the fabric side is disposed toward the resilient calender roll.Type: GrantFiled: August 9, 1999Date of Patent: June 19, 2001Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Richard Douglas Jennings, Zeinab Salman
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Patent number: 6241850Abstract: A soft tissue product and method for making a soft tissue product which exhibits resistance to limiting while maintaining physical strength integrity. The process includes debonding and mechanically treating papermaking fibers, forming a tissue web and drying the tissue web. The process allows for the use of high levels of debonding agents and hardwood fibers.Type: GrantFiled: June 16, 1999Date of Patent: June 5, 2001Assignee: The Procter & Gamble CompanyInventor: Stephen Robert Kelly
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Patent number: 6217708Abstract: A double-side and full color transfer paper for electrophotography having a paper layer divided into a felt side and a wire side, wherein the difference between the orientation of fiber in the felt side and that in the wire side of the paper layer is 0.1 to −0.1, and both of residual curvature of the transfer paper in a MD (in a movement direction of a paper machine) and that in a CD (in a direction perpendicular to the MD) are included in a range from 7 to −7 m−1 and the expansion ratio of the transfer paper in the CD is 0.55 or lower, if necessary.Type: GrantFiled: April 8, 1997Date of Patent: April 17, 2001Assignees: Fuji Xerox Co., Ltd., Oji Paper Co., Ltd.Inventors: Tsutomu Kurihara, Katsumi Harada, Masaru Kato, Harumi Watanabe
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Patent number: 6207734Abstract: An adhesive for applying to a creping surface in the process for dry creping tissue paper is disclosed. The adhesive comprises cationic starch and optionally a polyvinyl alcohol and a water-soluble, thermosetting, cationic polyamide-epihalohydrin resin. The adhesive provides high adhesion and doctorability for dry creping.Type: GrantFiled: February 24, 1999Date of Patent: March 27, 2001Assignee: The Procter & Gamble CompanyInventors: Kenneth Douglas Vinson, Howard Thomas Deason, Bart Steven Hersko
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Patent number: 6203663Abstract: Paper sheets, such as tissue sheets useful for facial tissue, bath tissue and the like, are formed with a decorative pattern imparted to the tissue sheet by the forming fabric. The decorative pattern is incorporated into the forming fabric by a variety of means, such as stitching, silk screening, printing, weaving, or overlaying a fabric with a decorative pattern onto a conventional forming fabric. The presence of decoratively-shaped areas in the forming fabric, which are areas of relatively slow water drainage, cause corresponding areas in the resulting sheet to have a translucent appearance attributable to a relatively lower basis weight and/or different fiber composition. The decorative patterns are preferably formed in the outer or surface layer(s) of the paper sheet.Type: GrantFiled: May 5, 1995Date of Patent: March 20, 2001Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Richard Joseph Kamps, Janica Sue Behnke, Fung-jou Chen, Darnell Clarence Radtke
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Patent number: 6197154Abstract: A method for making a textured tissue sheet on a conventional tissue making machine using a conventional cylindrical drum dryer creates a product that is remarkably bulky, soft, and wet resilient. A combination of rush transfer and sheet molding with three-dimensional fabrics is combined with the step of web inversion to ensure that the surface of the web which was molded onto a first textured transfer fabric is the surface which is placed against the surface of the cylinder dryer. Web inversion improves machine productivity and enhances physical properties of the web.Type: GrantFiled: October 31, 1997Date of Patent: March 6, 2001Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Shan Liang Chen, Michael Alan Hermans, Sheng-Hsin Hu, Richard Joseph Kamps, Jeffrey Dean Lindsay
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Patent number: 6193838Abstract: A one-ply paper tissue product and a method of making a one-ply paper product combining high strength and softness along with low sidedness. The paper tissue product exhibits a sidedness parameter of less than 0.3 preferably, less than 0.225, a tensile modulus of no more than 32 grams/percent strain, a GM MMD of no more than about 0.225, and a cross directional strength of at least 200 grams per 3 inches. In stratification tissues, these properties are obtained by control of stratification, particularly, chemical stratification and stratification of furnish when appropriate. The tissue has a sidedness parameter value of less than 0.3, preferably, about 0.15 to about less than 0.225. In homogenous tissue, these properties are obtained by adding a strength enhancing agent to separate furnish sources prior to the funish sources being combined, and further, optionally adding the softener to the nascent web.Type: GrantFiled: July 1, 1999Date of Patent: February 27, 2001Assignee: Fort James CorporationInventors: T. Philips Oriaran, Frank D. Harper, Anthony O. Awofeso, Cristian M. Neculescu, Phuong Van Luu, Thomas N. Kershaw, Galyn A. Schulz
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Patent number: 6187141Abstract: A water-disintegratable fibrous sheet having a layered structure comprising: (a) at least one first fiber web comprising pulp of conifer and pulp of hardwood; (b) at least one second fiber web comprising pulp of conifer, having a content of pulp of hardwood less than that in said first fiber web or containing no pulp of hardwood, said first and second fiber webs forming said layered structure; and (c) a water-insoluble or water-swellable binder being added to at least one of said first and second fiber webs. The fibrous sheet excellent in water-disintegratability and strength can be obtained.Type: GrantFiled: September 16, 1998Date of Patent: February 13, 2001Assignee: Uni-Charm CorporationInventors: Naohito Takeuchi, Takayoshi Konishi, Daisuke Yamada
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Patent number: 6187137Abstract: A method of using a conventional wet-pressed creped tissue machine produces a textured tissue sheet that is dried on a conventional cylindrical drum dryer to create an uncreped product with throughdried-like properties. Machine modifications and a proper balance of adhesive compounds and release agents permit a textured sheet to be dried on a Yankee drier and then pulled off without use of a crepe blade.Type: GrantFiled: October 31, 1997Date of Patent: February 13, 2001Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Frank Gerald Druecke, Shan Liang Chen, Michael Alan Hermans, Sheng-Hsin Hu, Richard Joseph Kamps
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Patent number: 6187139Abstract: The present invention is a method for making a high quality paper product at improved process efficiency through the use of high steam levels in the Yankee dryer. The product according to the present invention is creped from the Yankee dryer while it is still wet and is then drying is completed using conventional methods. Products made according to the present invention exhibit improved absorbency, softness and bulk.Type: GrantFiled: July 13, 1999Date of Patent: February 13, 2001Assignee: Fort James CorporationInventors: Steven L. Edwards, Robert J. Marinack
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Patent number: 6179961Abstract: Strong, soft, and low dusting tissue paper webs useful in the manufacture of soft, absorbent sanitary products such as bath tissue, facial tissue, and absorbent towels are disclosed. At least one surface of the tissue papers has uniform discrete surface deposits of a substantively affixed chemical softening mixture comprising a mixture of a quartenary ammonium compound, an emollient, and a sorbitan ester.Type: GrantFiled: October 8, 1997Date of Patent: January 30, 2001Assignee: The Procter & Gamble CompanyInventors: Jonathan Andrew Ficke, Kenneth Douglas Vinson
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Patent number: 6165319Abstract: The present invention relates to a soft, thick, single-ply, printed, absorbent paper product having a Yankee side and an air side wherein the absorbent paper is printed on before or after embossing on the Yankee side, air side, or both sides, said absorbent paper exhibiting a serpentine configuration. This inventions also relates to a process for the manufacture of such absorbent paper product having a basis weight of at least about 12.5 lbs. per 3000 square foot ream and having low sidedness, said tissue exhibiting:a specific total tensile strength of between 40 and 200 grams per 3 inches per pound per 3000 square foot ream, a cross direction specific wet tensile strength of between 2.75 and 20.0 grams per 3 inches per pound per 3000 square foot ream, the ratio of MD tensile to CD tensile of between 1.25 and 2.75, a specific geometric mean tensile stiffness of between 0.5 and 3.2 grams per inch per percent strain per pound per 3000 square foot ream, a friction deviation of less than 0.Type: GrantFiled: May 11, 1998Date of Patent: December 26, 2000Assignee: Fort James CorporationInventors: Michael S. Heath, T. Philips Oriaran, Mark S. Siegel, Frank D. Harper, John H. Dwiggins
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Patent number: 6149769Abstract: Disclosed is a soft, low density paper product made using papermaking fibers and a cationic temporary wet strength resin. Such paper products have a density less than about 0.6 grams per cubic centimeter, a basis weight is between about 10 and about 65 grams per square meter, a dry strength less than about 500 grams per inch (197 grams per centimeter), a ratio of an initial wet strength to the dry strength greater than about 0.15:1, and a ratio of a thirty minute wet strength to the initial wet strength less than about 0.4. Methods for producing such paper products are also disclosed. The paper products may be produced either as homogeneous structures or as multi-layered structures and may be either creped or uncreped.Type: GrantFiled: June 3, 1998Date of Patent: November 21, 2000Assignee: The Procter & Gamble CompanyInventors: Khosrow Parviz Mohammadi, Larry Odell Seward, David Mark Rasch
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Patent number: 6146496Abstract: A paper web and method of making the paper web are disclosed. In one embodiment the paper web includes a continuous relatively thinner region and a plurality of discrete relatively thickner regions. The relatively thicker regions are disposed in the plane of the relatively thinner region. The paper web can have a relatively patterned face and a relatively smooth face. The paper structures can be dried relatively quickly and efficiently, and can provide enhanced absorbency and bulk density while having a relatively smooth face.Type: GrantFiled: November 14, 1996Date of Patent: November 14, 2000Assignee: The Procter & Gamble CompanyInventor: Dean Van Phan
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Patent number: 6146499Abstract: A method and product is disclosed to obtain sheets with increased cross-machine stretch. The method involves the use of a cross-machine stretchable fabric upon which a wet web of paper is placed. The method results in a product having increased cross-machine stretch.Type: GrantFiled: December 22, 1997Date of Patent: November 14, 2000Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Philip S. Lin, Michael J. Rekoske
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Patent number: 6139686Abstract: A process and an apparatus for making a foreshortened paper web are disclosed. A wet web disposed on a fluid-permeable papermaking fabric is being pressed between two parallel and mutually opposed first and second press surfaces, the first press surface contacting the web, and the second press surface contacting the fabric. In the continuous process, the press surfaces, the web and the fabric move in a machine direction. Under pressure, at least selected portions of the web become densified and adhered to the first press surface which can be treated with a creping adhesive. The first surface is heated to create a temperature differential between two surfaces. The temperature differential causes the water contained in the web to move from the web into the fabric, thereby drying the web. After the web is released from the pressure, the web is foreshortened either by creping or by transferring the web to a slower moving transfer fabric.Type: GrantFiled: December 19, 1997Date of Patent: October 31, 2000Assignee: The Procter & Gamble CompanyInventors: Paul Dennis Trokhan, Mark Ryan Richards, Michael Gomer Stelljes, Jr.
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Patent number: 6117525Abstract: A chemically enhanced paper structure having a discrete pattern of a chemical composition is disclosed. The paper structure comprises a cellulose substrate, such as tissue paper. The substrate has a topography comprising at least two different elevations. The chemical composition may include a chemical softener composition or a surface-active composition and is selectively disposed in register with one of the elevations of the cellulose substrate, preferably the higher elevation regions. The paper structure is suitable for use as bath tissue or facial tissue.Type: GrantFiled: October 8, 1998Date of Patent: September 12, 2000Assignee: The Procter & Gamble CompanyInventors: Paul Dennis Trokhan, Dean Van Phan, Joe Brian Melvin
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Patent number: 6113740Abstract: A one-ply paper tissue product and a method of making a one-ply paper product combining high strength and softness along with low sidedness. The paper tissue product exhibits a sidedness parameter of less than 0.3 preferably, less than 0.225, a tensile modulus of no more than 32 grams/percent strain, a GM MMD of no more than about 0.225, and a cross directional strength of at least 200 grams per 3 inches. In stratification tissues, these properties are obtained by control of stratification, particularly, chemical stratification and stratification of furnish when appropriate. The tissue has a sidedness parameter value of less than 0.3, preferably, about 0.15 to about less than 0.225. In homogenous tissue, these properties are obtained by adding a strength enhancing agent to separate furnish sources prior to the funish sources being combined, and further, optionally adding the softener to the nascent web.Type: GrantFiled: July 1, 1999Date of Patent: September 5, 2000Assignee: Fort James CorporationInventors: T. Philips Oriaran, Frank D. Harper, Anthony O. Awofeso, Cristian M. Neculescu, Phuong Van Luu, Thomas N. Kershaw, Galyn A. Schulz
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Patent number: 6106928Abstract: A sheet of paper, in particular for a sanitary paper, consists of at least one ply of absorbent, creped paper of a specific surface weight between 12-35 g/m.sup.2 evincing first and second protrusions respectively (10, 2) respectively arrayed in a first and second pattern. The first pattern is composed of pattern elements each constituted by at least one of the first protrusions (10) and is comparatively well spaced apart mutually, while the second so-called background pattern comprises the second protrusions (2) arranged in more compact manner between the pattern elements. The sheet of paper is characterized in that the pattern elements form a graphic pattern while being arrayed at a rate of at most 0.5 element/cm.sup.2 and the first protrusions (10) constituting them evince at their top a line-shaped surface with a width between 0.1-2 mm, the second protrusions (2) being arrayed at the rate of at least 30, and preferably 40, protrusions/cm.sup.2 and ensuring the essential functional features.Type: GrantFiled: April 24, 1997Date of Patent: August 22, 2000Assignee: Fort James FranceInventors: Pierre Laurent, Carol Lefebvre Du Grosriez, Gilles Roussel, Remy Ruppel
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Patent number: 6103063Abstract: A one-ply paper tissue product and a method of making a one-ply paper product combining high strength and softness along with low sidedness. The paper tissue product exhibits a sidedness parameter of less than 0.3 preferably, less than 0.225, a tensile modulus of no more than 32 grams/percent strain, a GM MMD of no more than about 0.225, and a cross directional strength of at least 200 grams per 3 inches. In stratification tissues, these properties are obtained by control of stratification, particularly, chemical stratification and stratification of furnish when appropriate. The tissue has a sidedness parameter value of less than 0.3, preferably, about 0.15 to about less than 0.225. In homogenous tissue, these properties are obtained by adding a strength enhancing agent to separate furnish sources prior to the funish sources being combined, and further, optionally adding the softener to the nascent web.Type: GrantFiled: July 1, 1999Date of Patent: August 15, 2000Assignee: Fort James CorporationInventors: T. Philips Oriaran, Frank D. Harper, Anthony O. Awofeso, Christian M. Neculescu, Phuong Van Luu, Thomas N. Kershaw, Galyn A. Schulz
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Patent number: 6103062Abstract: The present invention provides method for making a wet pressed paper web. An embryonic web of papermaking fibers is formed on a foraminous forming member, and transferred to an imprinting member to deflect a portion of the papermaking fibers in the embryonic web into deflection conduits in the imprinting member. The web, the imprinting member, and two felt layers, are then pressed in a compression nip with a foraminous backing member to mold and dewater the web.Type: GrantFiled: October 1, 1998Date of Patent: August 15, 2000Assignee: The Procter & Gamble CompanyInventors: Robert Stanley Ampulski, Ward William Ostendorf, Paul Dennis Trokhan
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Patent number: 6096168Abstract: The present invention relates to biaxially undulatory single-ply and multi-ply tissues, single-ply and multi-ply towels, single-ply and multi-ply napkins and other personal care and cleaning products as well as novel creping blades and novel processes for the manufacture of such paper products. The present invention is directed to tissue and towel product having highly desirable bulk, appearance and softness characteristics produced by utilizing a novel undulatory creping blade having a multiplicity of serrulations formed in its rake surface which presents differentiated creping angles and/or rake angles to the web as it is being creped. The invention is also directed to a novel blade having an undulatory rake surface having trough-shaped serrulations in the rake surface of the blade. The undulatory creping blade has a multiplicity of alternating serrulated sections of either uniform depth or a multiplicity of arrays of serrulations having non-uniform depth.Type: GrantFiled: March 13, 1997Date of Patent: August 1, 2000Assignee: Fort James CorporationInventors: Robert J. Marinack, Anthony O. Awofeso, Frank D. Harper, Thomas N. Kershaw
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Patent number: 6080276Abstract: Webs can be embossed using matched embossing elements with shoulders located off-centered. Such a configuration increases the bulk of the web and maintains the web's strength. The shoulder of one roll is located above or below the embossing surface mid-plane. The shoulder of the second roll substantially matches the off-centered elements of the first roll.Type: GrantFiled: December 30, 1997Date of Patent: June 27, 2000Assignee: Kimberly-Clark Worlwide, Inc.Inventor: William H. Burgess