Layers Of Different Properties Patents (Class 162/125)
  • Patent number: 6277241
    Abstract: The present invention is generally directed to base webs that are creped after a bonding material has been applied to at least one side of the web according to a predetermined pattern. The base web disclosed in the present application is made from at least three fibrous layers. The outer layers of the web contain synthetic staple fibers for increasing the tensile strength and abrasion resistant properties of the web. In one embodiment, the middle layer can further contain hardwood fibers, such as eucalyptus fibers, which improves the wipe dry properties of the web.
    Type: Grant
    Filed: November 14, 1997
    Date of Patent: August 21, 2001
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Joseph F. Merker, Ralph L. Anderson, Thomas C. Saffel, Stephen A. Hurst, Charles J. Garneski, Gary L. Zimmerman
  • Publication number: 20010011584
    Abstract: An arrangement and method for forming a multilayered paper or paperboard web from stock suspensions containing papermaking fibers and fines, in which first and second webs are formed in first and second twin-wire forming units such that each web has a higher concentration of fines at one side than at the other side of the web. The webs are couched together such that the sides having the higher concentration of fines are in contact with each other.
    Type: Application
    Filed: December 15, 2000
    Publication date: August 9, 2001
    Applicant: Valmet-Karlstad AB
    Inventor: Jukka Kinnunen
  • Patent number: 6258210
    Abstract: Provided is a multi-layered water-decomposable fibrous sheet with a plurality of layers each having a different fibrous constitution being integrated, including a top layer on a top surface and a back layer on a back surface. The top layer includes fibrillated rayon of at least 3% by mass of all fibers constituting the top layer. The fibrillated rayon has a degree of beating of at most 700 cc, and has primary fibers of a predetermined fiber length and microfibers extending from the primary fibers. The microfibers are entangled with and/or hydrogen-bonded to at least either of other microfibers and other fibers. The back layer includes fibers containing no fibrillated rayon, the fibers entangled with and/or hydrogen-bonded to each other, or the back layer includes the fibrillated rayon in an amount smaller than that in the top layer. The microfibers of the fibrillated rayon are entangled with and/or hydrogen-bonded to at least either of other microfibers and other fibers.
    Type: Grant
    Filed: July 27, 2000
    Date of Patent: July 10, 2001
    Assignee: Uni-Charm Corporation
    Inventors: Naohito Takeuchi, Kazuya Okada
  • Patent number: 6251223
    Abstract: A process for improving gravure and offset printability of coated and uncoated printing papers by increasing filler share in the paper on the top and bottom sides or in the outer layers of the paper web by using a retention agent, and providing the outerlayers of the fiber bearing liquid forming the paper web with additional retention agent before or during sheet formation on or between the wires of the paper making machine.
    Type: Grant
    Filed: January 11, 1999
    Date of Patent: June 26, 2001
    Assignee: Stora Publication Paper AG
    Inventors: Hansjörg Kessler, Dieter Horand, Wolfram Friesen
  • Patent number: 6241850
    Abstract: 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: Grant
    Filed: June 16, 1999
    Date of Patent: June 5, 2001
    Assignee: The Procter & Gamble Company
    Inventor: Stephen Robert Kelly
  • Patent number: 6238519
    Abstract: New and improved methods and products are disclosed relating to increasing the softness of paper sheets, without effecting their wetability. Increased softness, without loss of wetability is obtained by adding deactivated ketene dimer sizing agents to the sheet.
    Type: Grant
    Filed: November 18, 1998
    Date of Patent: May 29, 2001
    Assignee: Kimberly Clark Worldwide, Inc.
    Inventors: David A. Jones, Nancy C. Clungeon
  • Patent number: 6221212
    Abstract: A cardboard with great rigidity and low grammage, as well as a package made thereof, is described. The cardboard consists of a core, which is surrounded by at least one, preferably 1-3 outer plies, on each side. The cardboard has a grammage of 100-300 g/m2, a bending resistance index of at least 25 Nm6/kg3, and a Scott Bond z-strength of at least 100 J/m2. The core of the cardboard consists of chemi-thermomechanical pulp and has a density of 200-450 kg/m3 and the core constitutes 55-80% of the total grammage of the cardboard. The outer plies have a tensile stiffness index of 7.0-9.5 kgNm/g and mainly consist of chemical pulp.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: April 24, 2001
    Assignee: Stora Kopparbergs Bergslags AB
    Inventor: Håkan Sjöström
  • Patent number: 6217708
    Abstract: 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: Grant
    Filed: April 8, 1997
    Date of Patent: April 17, 2001
    Assignees: Fuji Xerox Co., Ltd., Oji Paper Co., Ltd.
    Inventors: Tsutomu Kurihara, Katsumi Harada, Masaru Kato, Harumi Watanabe
  • Patent number: 6193838
    Abstract: 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: Grant
    Filed: July 1, 1999
    Date of Patent: February 27, 2001
    Assignee: Fort James Corporation
    Inventors: T. Philips Oriaran, Frank D. Harper, Anthony O. Awofeso, Cristian M. Neculescu, Phuong Van Luu, Thomas N. Kershaw, Galyn A. Schulz
  • Patent number: 6165319
    Abstract: 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: Grant
    Filed: May 11, 1998
    Date of Patent: December 26, 2000
    Assignee: Fort James Corporation
    Inventors: Michael S. Heath, T. Philips Oriaran, Mark S. Siegel, Frank D. Harper, John H. Dwiggins
  • Patent number: 6149769
    Abstract: 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: Grant
    Filed: June 3, 1998
    Date of Patent: November 21, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Khosrow Parviz Mohammadi, Larry Odell Seward, David Mark Rasch
  • Patent number: 6146499
    Abstract: 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: Grant
    Filed: December 22, 1997
    Date of Patent: November 14, 2000
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Philip S. Lin, Michael J. Rekoske
  • Patent number: 6129815
    Abstract: The present invention provides a multi-layered wiping product that maintains desired characteristics of softness, strength, stretchability, absorbency, and the like. The wiping product is formed from a process using a multi-layered paper web, printing a bonding agent on both of its outer surfaces, pressing the web so it adheres tightly to a creping surface and lightly to a presser roll, and then creping one of its surfaces.
    Type: Grant
    Filed: June 3, 1997
    Date of Patent: October 10, 2000
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Kenneth C. Larson, Richard R. Hepford
  • Patent number: 6113740
    Abstract: 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: Grant
    Filed: July 1, 1999
    Date of Patent: September 5, 2000
    Assignee: Fort James Corporation
    Inventors: T. Philips Oriaran, Frank D. Harper, Anthony O. Awofeso, Cristian M. Neculescu, Phuong Van Luu, Thomas N. Kershaw, Galyn A. Schulz
  • Patent number: 6103063
    Abstract: 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: Grant
    Filed: July 1, 1999
    Date of Patent: August 15, 2000
    Assignee: Fort James Corporation
    Inventors: T. Philips Oriaran, Frank D. Harper, Anthony O. Awofeso, Christian M. Neculescu, Phuong Van Luu, Thomas N. Kershaw, Galyn A. Schulz
  • Patent number: 6068732
    Abstract: Stiffness improvements for multi-ply paperboard laid from chemically pulped softwood and hardwood papermaking furnish are obtained by fiber fractionating the softwood pulp and repositioning the resulting fractions. Chemically pulped and preferably bleached softwood fiber "rejects" of a fractionation screen are redistributed into the outer plies of a three-ply, 300-350 g/m (approximately 195 #/3,000 ft.) basis weight paperboard. The fractionation "accepts" are repositioned to the center ply for a 12% to 15% increase in Taber stiffness. The short, "accept" fiber from the fractionation screen is mixed with chemically pulped hardwood fiber or modified mechanical pulp of either species for formation of the center ply on a multiformer paper machine.
    Type: Grant
    Filed: January 22, 1999
    Date of Patent: May 30, 2000
    Assignee: International Paper Company
    Inventors: Robert F. Cassidy, Anant D. Mahale, Dennis J. Kerstanski, Robert V. Mahony
  • Patent number: 6051104
    Abstract: 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: Grant
    Filed: August 13, 1997
    Date of Patent: April 18, 2000
    Assignee: Fort James Corporation
    Inventors: T. Philips Oriaran, Frank D. Harper, Anthony O. Awofeso, Cristian M. Neculescu, Phuong Van Luu, Thomas N. Kershaw, Galyn A. Schulz
  • Patent number: 6033761
    Abstract: The present invention relates to a soft, thick, single-ply tissue and to a process for the manufacture of such tissue product having a basis weight of at least about 15 lbs./3,000 square foot ream and having low sidedness, said tissue exhibiting:a specific total tensile strength of between 40 and 75 grams per 3 inches per pound per 3000 square feet ream, a cross direction specific wet tensile strength of between 2.75 and 7.5 grams per 3 inches per pound per 3000 square feet 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 1.2 grams per inch per percent strain per pound per 3000 square feet ream, a friction deviation of less than 0.225, and a sidedness parameter of less than 0.275.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: March 7, 2000
    Assignee: Fort James Corporation
    Inventors: John H. Dwiggins, Ranga Ramesh, Frank D. Harper, Anthony O. Awofeso, T. Philips Oriaran, Galyn A. Schulz, Dinesh M. Bhat
  • Patent number: 6019871
    Abstract: The foam process is used to make non-woven webs from cellulose or synthetic fibers, which webs have as a component super absorbent polymer (SAP). In order to minimize water absorbency by the SAP, it may have a protective coating that dissolves only after in contact with water a few seconds; the SAP may be frozen (e.g. to about -18.degree. C.); and/or the SAP may be transported by highly chilled (e.g. about 1.degree. C.) water. The SAP, and liquid or foam carrier, is fed as a small volume flow into a conduit carrying a high volume flow of a fiber containing foam slurry, just before a foraminous element. A mechanical mixer may be provided in the conduit for mixing the SAP with the fiber-foam slurry. The addition of the SAP to the carrier fluid takes place no more than ten seconds (preferably no more than five seconds) before the fiber-foam slurry mixed with SAP is brought into operative association with one or more foraminous elements.
    Type: Grant
    Filed: April 30, 1998
    Date of Patent: February 1, 2000
    Assignee: Ahlstrom Paper Group Oy
    Inventors: Kay Rokman, Juhani Jansson, Eino Laine
  • Patent number: 5958187
    Abstract: A paper product and a method of making a paper product with a glabrous surface and adapted for use either dry or use in a manually pre-moistened condition. The paper product has temporary wet strength exhibiting an initial normalized CD wet tensile strength of at least about 25 g/1" strip, preferably 35 g/1" strip as measured by the Finch Cup Test 5 seconds after immersion and a subsequent CD wet tensile strength of less than about 2/3 the initial value as measured 30 minutes after immersion. A temporary wet strength agent comprising aldehydic units in the range of from about 2 pounds per ton to about 30 pounds per ton is added to the furnish. A cationic nitrogenous softener/debonder is preferably added to the furnish, in an amount of from about 1 pound per ton to about 6 pounds per ton. The CD dry tensile strength of the paper product is from at least about 133 g/1" up to about 267 g/1", and the tensile modulus is from about 10 to about 32 g/% strain while the GM MMD friction is from about 0.26 to about 0.
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: September 28, 1999
    Assignee: Fort James Corporation
    Inventors: Dinesh M. Bhat, Robert J. Marinack, Henry S. Ostrowski, Scott D. Moesch
  • Patent number: 5935382
    Abstract: In order to meet higher demands for the properties of paperboard products an improved method and machine for the manufacture of paperboard are proposed according to the present invention in which a core of a paperboard web is formed in a second forming unit from a stock with a consistency of 1.5-6.0% being supplied to the fourdrinier wire of a fourdrinier former carrying a back layer formed previously in a first forming unit, from a headbox for high consistency stock and being dewatered upon being enclosed between the fourdrinier wire and a top wire in said second forming unit, and in which an underliner is formed in a third forming unit of stock with a consistency of 0.3-1.4% being supplied to the fourdrinier wire carrying the back layer and core, from a headbox for stock of low consistency.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: August 10, 1999
    Assignee: Valmet-Karlstad AB
    Inventors: Vesa Tapani Huovila, Nils Borje Sandgren
  • Patent number: 5916417
    Abstract: Stiffness improvements for multi-ply paperboard laid from chemically pulped softwood and hardwood papermaking furnish are obtained by fiber fractionating the softwood pulp and repositioning the resulting fractions. Chemically pulped and preferably bleached softwood fiber "rejects" of a fractionation screen are redistributed into the outer plies of a three-ply, 300-350 g/m (approximately 195 #/3,000 ft.) basis weight paperboard. The fractionation "accepts" are repositioned to the center ply for a 12% to 15% increase in Taber stiffness. The short, "accept" fiber from the fractionation screen is mixed with chemically pulped hardwood fiber or modified mechanical pulp of either species for formation of the center ply on a multiformer paper machine.
    Type: Grant
    Filed: August 22, 1997
    Date of Patent: June 29, 1999
    Assignee: International Paper Company
    Inventors: Robert F. Cassidy, Anant D. Mahale, Dennis J. Kerstanski, Robert V. Mahony
  • Patent number: 5885418
    Abstract: The improved creped non-laminar singular web structure comprising long fibers and short fibers demonstrated by high TWA and Z peeling. Creping causes a certain portion of long synthetic fibers and short fibers to substantially be oriented in a predetermined vertical or Z direction across the thickness of the web structure. In particular, when a stratified preparation containing wet stiff CTMP fibers is used, the vertically oriented CTMP fibers increase the total water absorption (TWA) of the web structure without collapsing. The high TWA print/double-creped paper products manufactured from the above web structure are suitable for heavy wipe and dry uses.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: March 23, 1999
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Ralph L. Anderson, Kenneth C. Larson
  • Patent number: 5882479
    Abstract: 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: Grant
    Filed: August 13, 1997
    Date of Patent: March 16, 1999
    Assignee: Fort James Corporation
    Inventors: T. Philips Oriaran, Frank D. Harper, Anthony O. Awofeso, Cristian M. Neculescu, Phuong Van Luu, Thomas N. Kershaw, Galyn A. Schulz
  • Patent number: 5851352
    Abstract: Strong and soft multi-ply tissue paper products useful as absorbent sanitary products such as bath tissue, facial tissue, and absorbent towels are disclosed. At least one internal surface of the tissue paper product has a surface deposited strengthening agent.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: December 22, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Kenneth Douglas Vinson, Jonathan Andrew Ficke, Howard Thomas Deason
  • Patent number: 5846380
    Abstract: A soft absorbent, creped tissue paper having an ATP factor of less than about 0.036, a slip/stick coefficient of less than about 0.024, and a lint level of less than about 6. The tissue paper preferably has a density of less than about 0.15 gram/cm.sup.3. Preferably, the creped tissue paper is a single- or multi-layer, single-ply tissue. More preferably, the creped tissue paper is made by a through air drying technique. Tissue paper having unique combinations of these above attributes is highly desirable by the consumers.
    Type: Grant
    Filed: April 23, 1997
    Date of Patent: December 8, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Dean Van Phan, Paul Dennis Trokhan
  • Patent number: 5843566
    Abstract: A laminated transparent paper is disclosed therein which is obtained by laminating transparent papers on both the surfaces of a transparent polyester film via an adhesive, the surfaces of the transparent papers having coating layers of a coating solution mainly comprising an aqueous dispersion of at least one selected from the group consisting of an acrylonitrile-vinylformal-acrylic acid ester copolymer, a styrene-acrylic acid copolymer and a styrene-methacrylic acid copolymer, the laminated transparent paper having a Bekk smoothness of 20 seconds or more and an opacity of 45% or less.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: December 1, 1998
    Assignee: Mitsubishi Paper Mills Limited
    Inventors: Masahiro Miyauchi, Yukihiro Tachifuji
  • Patent number: 5830317
    Abstract: Soft, strong, 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. The tissue papers comprise fibers such as wood pulp and a non-cellulosic, water insoluble particulate filler such as kaolin clay and possess biased surface properties.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: November 3, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Kenneth Douglas Vinson, Jonathan Andrew Ficke, Bart Steven Hersko
  • Patent number: 5814188
    Abstract: 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 agent.
    Type: Grant
    Filed: December 31, 1996
    Date of Patent: September 29, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Kenneth Douglas Vinson, Paul Thomas Weisman, Jonathan Andrew Ficke, Thomas James Klofta
  • Patent number: 5759346
    Abstract: A method for producing uncreped, 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 is disclosed. The tissue papers comprise fibers such as wood pulp and a non-cellulosic, water insoluble particulate filler such as kaolin clay.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: June 2, 1998
    Assignee: The Procter & Gamble Company
    Inventor: Kenneth Douglas Vinson
  • Patent number: 5700352
    Abstract: A process for incorporating a fine particulate filler such as kaolin clay into tissue paper is disclosed. The process results in 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.
    Type: Grant
    Filed: April 3, 1996
    Date of Patent: December 23, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Kenneth Douglas Vinson, Howard Thomas Deason
  • Patent number: 5695607
    Abstract: 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: Grant
    Filed: April 1, 1994
    Date of Patent: December 9, 1997
    Assignee: James River Corporation of Virginia
    Inventors: T. Philips Oriaran, Frank D. Harper, Anthony O. Awofeso, Cristian M. Neculescu, Phuong Van Luu, Thomas N. Kershaw, Galyn A. Schulz
  • Patent number: 5672249
    Abstract: A process for incorporating a fine particulate filler such as kaolin clay into tissue paper is disclosed. The process results in 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.
    Type: Grant
    Filed: April 3, 1996
    Date of Patent: September 30, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Kenneth Douglas Vinson, John Paul Erspamer, Charles William Neal, Jonathan Andrew Ficke, Jeffress Paul Halter
  • Patent number: 5672306
    Abstract: Disclosed is an adsorbent fibrous nonwoven structure composed of a matrix of pulp fibers having a first exterior surface and a second exterior surface; and an adsorbent material integrated into the pulp fiber matrix so that the concentration of adsorbent material adjacent the first exterior surface of the nonwoven structure is at least about 60 percent, as determined by optical image analysis, and the concentration of adsorbent material adjacent the second exterior surface is less than about 40 percent, as determined by optical image analysis. This adsorbent nonwoven structure provides useful strength and low-lint characteristics. The fibrous nonwoven structure of the present invention may be laminated together or to surfaces of other materials.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: September 30, 1997
    Assignee: Kimberly-Clark Corporation
    Inventors: Troy Alan Sprang, Annmarie Veronica Douglas, Benji Dawn Morgan
  • Patent number: 5643413
    Abstract: A method of producing a multi-ply paperboard product. A single aqueous recycled pulp stock which contains both heavy contaminants and lightweight contaminants is separated into three fractions, including a first fraction which contains the heavy contaminants, a second middle density fraction that contains the most desirable fibers, and a third low density fraction that contains the lightweight contaminants. The three fractions are discharged from a multi-channel head box onto a forming fabric, with the middle density fraction constituting the base ply in contact with the forming fabric, the low density fraction being the central ply and the high density fraction being the outer ply, thus forming a multiple-ply paperboard product.
    Type: Grant
    Filed: June 13, 1996
    Date of Patent: July 1, 1997
    Assignee: Hoffman Environmental Systems, Inc.
    Inventor: Roger P. Hoffman
  • Patent number: 5635028
    Abstract: Soft creped tissue paper products comprising papermaking fibers and a crepe facilitating composition are disclosed. The crepe facilitating composition comprises a bonding inhibitor, a cationic starch and a carboxymethyl cellulose. Preferably, the bonding inhibitor is a quaternary ammonium compound. The use of a bonding inhibitor, a cationic starch and a carboxymethyl cellulose results in a creped tissue paper that is both strong and soft. A creped papermaking process comprising the addition of the crepe facilitating composition is also disclosed. The crepe facilitating composition offers the potential to improve production capacity.
    Type: Grant
    Filed: April 19, 1995
    Date of Patent: June 3, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Kenneth D. Vinson, Paul T. Weisman, Dean V. Phan
  • Patent number: 5635029
    Abstract: An absorbent product containing sphagnum moss selected from the group of botanical sections consisting of PALUSTRIA, ACUTIFOLIA, RIGIDA, SUBSECUNDA and CUSPIDATA. The invention also extends to a novel method for manufacturing a highly absorbent structure and to a method for evaluating the liquid absorbent properties of a sphagnum moss composition.
    Type: Grant
    Filed: July 20, 1995
    Date of Patent: June 3, 1997
    Assignee: Johnson & Johnson Inc.
    Inventors: Yvon Levesque, Sylvaine Cote, Denis Gallagher
  • Patent number: 5609726
    Abstract: A multilayer headbox of a paper machine for producing a paper web with several layers having different properties, and an appropriate method therefor. In at least one first layer there is adjusted alone the fiber orientation cross profile and in at least one second layer there is adjusted alone the basis weight cross profile.
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: March 11, 1997
    Assignee: J.M. Voith GmbH
    Inventor: Hans-Peter Sollinger
  • Patent number: 5494554
    Abstract: The formation of wet-pressed tissue webs useful for facial tissue, bath tissue, paper towels or the like is substantially improved by forming the wet tissue web in layers in which the second-formed layer has a consistency which is significantly less than the consistency of the first-formed layer. The fiber support index of the forming fabric is about 170 or greater. The resulting improvement in web formation enables uniform debonding during creping, which in turn provides a significant improvement in softness and a reduction in linting. Wet-pressed tissues made with this process are uniformly internally debonded, as measured by a high Void Volume Index, which is comparable to that of throughdried tissues.
    Type: Grant
    Filed: March 30, 1994
    Date of Patent: February 27, 1996
    Assignee: Kimberly-Clark Corporation
    Inventors: Steven L. Edwards, Peter J. Allen, Oliver P. Renier
  • Patent number: 5490905
    Abstract: A method and device for the regulation of a pulp suspension flow in a multi-layer headbox and a multi-layer headbox for a paper machine/board machine. For the formation of different layers in the web, at least two pulp suspensions having different pulp concepts flow through the multi-layer headbox. The flow of a pulp suspension that forms one of the layers in the web is regulated by regulating the component flows that constitute this flow and regulating the concentration of the component flows independently from one another. In this manner, i.e., by regulating only this the particular layer, the total flow of the pulp suspension leaving the headbox is regulated.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: February 13, 1996
    Assignee: Valmet Paper Machinery, Inc.
    Inventors: Jyrki Huovila, Petri Nyberg, Michael Odell
  • Patent number: 5474095
    Abstract: This invention refers to a paper having crossdirectional regions having increased basis weight. The paper of this invention is especially useful as a wrapping material for a smoking article. The paper may be produced by depositing additional material onto a moving base web in a papermaking machine. The additional material is deposited by means of a rotating drum containing a plurality of slits through which the additional material passes.
    Type: Grant
    Filed: April 6, 1994
    Date of Patent: December 12, 1995
    Assignee: Philip Morris Incorporated
    Inventors: Jeffery L. Allen, Gordon H. Bokelman, Navin Gautam, David J. Kraske, James L. Myracle, Jr., Robert M. Rogers, Edward B. Sanders
  • Patent number: 5409572
    Abstract: A single or multi-ply tissue product includes at least one foam-formed ply incorporating at least about 100 ppm of forming-loop-incorporated surfactant, the ply includes from at least about 50% by weight to about 80% by weight of relatively short, high softness cellulosic fiber formed by chemical pulping of hardwood. The fibers have a weight average fiber length of between about 0.5 to about 2.2 mm, a coarseness of about 7 to about 14 mg of fiber per 100 m of fiber length (mg/100 m). The ply includes from at least about 20% by weight to about 50% by weight of relatively long strength-enhancing cellulosic fiber chosen from chemically pulped softwood fiber and chemi-thermo-mechanically pulped softwood fiber and mixtures thereof. The strength-enhancing cellulosic fiber have a weight average fiber length of about 2 to about 4 mm, a coarseness of about 14 to about 28 mg/100 m. Optionally, up to about 30% by weight of bulk-enhancing fibers having a three-dimensional anfractuous character may be provided.
    Type: Grant
    Filed: April 11, 1994
    Date of Patent: April 25, 1995
    Assignee: James River Corporation of Virginia
    Inventors: Thomas N. Kershaw, Anthony O. Awofeso, Frank D. Harper, Dinesh M. Bhat, John H. Dwiggins, Frederick W. Ahrens, Bruce W. Janda
  • Patent number: 5389202
    Abstract: A high pulp content nonwoven composite fabric is disclosed. The composite fabric contains more than about 70 percent, by weight, pulp fibers which are hydraulically entangled into a continuous filament substrate. This high pulp content composite nonwoven fabric may be used as a heavy duty wiper or as a fluid distribution material, cover material, and/or absorbent material in an absorbent personal care product. Also disclosed is a method of making the high pulp content nonwoven composite fabric.
    Type: Grant
    Filed: June 9, 1993
    Date of Patent: February 14, 1995
    Assignee: Kimberly-Clark Corporation
    Inventors: Cherie H. Everhart, Daniel O. Fischer, Fred R. Radwanski, Henry Skoog
  • Patent number: 5366785
    Abstract: Disclosed is a cellulosic fibrous structure, particularly a consumer product such as toilet tissue, facial tissue or a paper towel. In a first embodiment, extending outwardly from each face of the cellulosic fibrous structure is a plurality of protuberances. The protuberances extend bilaterally outwardly from the plane of the cellulosic fibrous structure in both directions. The bilaterally extending protuberances increase the caliper and texture of the consumer product embodied in the cellulosic fibrous structure. In a second embodiment, the protuberances extend outwardly, and are induced by fluid embossing, rather than mechanical embossing. Also disclosed is a fluid embossing process for making such cellulosic fibrous structures.
    Type: Grant
    Filed: October 1, 1993
    Date of Patent: November 22, 1994
    Assignee: The Procter & Gamble Company
    Inventor: Albert H. Sawdai
  • Patent number: 5324079
    Abstract: A security element that can be embedded in the form of a thread or strip in a security document, in particular a paper of value, is composed of two carrier sheets, each of which bears each of the marking substances allowing for detection of authenticity. The two carrier sheets are put together in such a way that the marking substances to be protected from mechanical abrasion and other external influences come to lie on the inside.The thread not only offers special protection for the marking substances, but can also be embedded in the paper substance easily due to its symmetrical structure and without showing any tendency to curl.
    Type: Grant
    Filed: October 26, 1992
    Date of Patent: June 28, 1994
    Assignee: GAO Gesellschaft fur Automation und Organisation mbH
    Inventors: Wittich Kaule, Wilhelm Ilgmann, Gerhard Schwenk, Gerhard Stenzel
  • Patent number: 5316839
    Abstract: A laminate suitable for electrostatic discharge interference and/or electromagnetic interference shielding comprising a polymetaphenylene isophthalamide fiber layer on one or both sides of a conducting layer comprising conducting fibers and polymetaphenylene isophthalamide fibers.
    Type: Grant
    Filed: May 26, 1993
    Date of Patent: May 31, 1994
    Assignees: E. I. Du Pont de Nemours and Company, Mishima Paper Company Ltd.
    Inventors: Ippei Kato, Akiyoshi Takano
  • Patent number: 5275876
    Abstract: A static dissipative laminate consistently having an internal resistance less than 2.times.10.sup.6 and a resistance to ground measurement of about 5.times.10.sup.6 and a surface resistance in the static dissipative range even at a very low humidities is produced by the use of an ionic salt and an humectant in the overlay and further by the use of a special top core sheet containing 0.6-1.0% by weight of carbon fibers.
    Type: Grant
    Filed: November 2, 1992
    Date of Patent: January 4, 1994
    Assignee: Nevamar Corporation
    Inventors: Robin D. O'Dell, Christine C. Wyche, Israel S. Ungar
  • Patent number: 5244721
    Abstract: A decorative static dissipative high pressure laminate having a plurality of consolidated thermosetting resin impregnated layers including a core and a decor surface layer to provide a surface resistance no greater than 2.times.10.sup.9. The core comprises at least one thermosetting resin impregnated paper core sheet and at least one special thermosetting resin impregnated core sheet of predominately paper fibers and a small quantity of stainless steel fibers irregularly distributed among the paper fibers.
    Type: Grant
    Filed: May 13, 1992
    Date of Patent: September 14, 1993
    Assignee: Nevamar Corporation
    Inventors: Christine C. Wyche, Robin O'Dell, Israel S. Ungar
  • Patent number: 5244541
    Abstract: A method of processing pulp comprises the following steps of a) mechanically refining pulp of up to 50% O.D. consistency; and b) mechanically treating the mechanically refined pulp by wringing, dewatering and compacting the mechanically refined pulp to permanently twist and kink individual fibers to a degree that is substantially irreversible when they are subsequently subjected to papermaking process steps, the refined and treated pulp having increased bulk and no reduction in Z-directional tensile over the same pulp that has not been mechanically refined and thereafter wrung, dewatered and compacted to twist and kink individual fibers. Alternately, the order of mechanically refining and mechanically treating can be reversed. The invention may have specific application to enhancing multi-layer paper products where pulp treated in accordance with the invention is utilized as core ply pulp in a multi-layer paper product.
    Type: Grant
    Filed: November 28, 1990
    Date of Patent: September 14, 1993
    Assignee: Potlatch Corporation
    Inventor: Mary L. Minton
  • Patent number: 5227023
    Abstract: Novel multi-layer paper and tissue products are provided, which possess strength, softness and absorbency. The products comprise either at least two foam deposited paper layers, wherein the foams have different air contents therein, or foam and water deposited layers. The layers can be deposited at about identical feed pressures from a single headbox while still possessing differing tensile strength ratios. Novel processes for forming such products are also provided.
    Type: Grant
    Filed: August 26, 1991
    Date of Patent: July 13, 1993
    Assignee: James River Corporation of Virginia
    Inventors: Joseph R. Pounder, Frederick W. Ahrens, Thomas N. Kershaw