Creping And/or Crinkling Patents (Class 162/111)
  • Patent number: 5529665
    Abstract: The addition of a relatively small amount of a cationic silicone to the aqueous suspension of papermaking fibers in the wet end of the tissue making process provides improved tactile properties (softness) to the resulting tissue.
    Type: Grant
    Filed: August 8, 1994
    Date of Patent: June 25, 1996
    Assignee: Kimberly-Clark Corporation
    Inventor: James M. Kaun
  • Patent number: 5512139
    Abstract: A doctor cooperates with the peripheral surface of a Yankee dryer for peeling the tissue away from the peripheral surface such that when the tissue is peeled from the surface, a series of microfolds are generated in the resultant tissue. An adjusting mechanism is connected to the doctor for adjusting an angle defined between the doctor and the peripheral surface. The arrangement is such that when the angle is adjusted, the physical dimensions of the microfolds change. A sensor is disposed downstream relative to the doctor for sensing the physical dimensions of the microfolds. A control circuit is electrically connected to the sensor and responsive to the sensor. The control circuit is electrically connected to the adjusting mechanism for varying the angle of the doctor so that the physical dimensions of the microfolds are optimized.
    Type: Grant
    Filed: December 8, 1993
    Date of Patent: April 30, 1996
    Assignee: Beloit Technologies, Inc.
    Inventor: Brian J. Worcester
  • Patent number: 5510001
    Abstract: The internal bulk of a tissue web can be improved during manufacturing of the basesheet by subjecting the tissue web to differential pressure while supported on a coarse fabric at a consistency of about 30 percent or greater. The differential pressure, such as by applying vacuum suction to the underside of the coarse fabric, causes the wet web to deflect into the openings or depressions in the fabric and "pop" back, resulting in a substantial gain in thickness or internal bulk. The method is especially adapted to improve the internal bulk of wet-pressed tissue webs.
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: April 23, 1996
    Assignee: Kimberly-Clark Corporation
    Inventors: Michael A. Hermans, Fung-Jou Chen, Harry L. Spiegelberg, Bernhardt E. Kressner, Janice G. Nielsen
  • Patent number: 5510000
    Abstract: Fibrous cellulose materials useful in the manufacture of soft, absorbent paper products such as paper towels, facial tissues, and toilet tissue are disclosed. The paper products contain a vegetable oil based quaternary ammonium chemical softening compound. Examples of preferred vegetable oil based quaternary ammonium chemical softening compounds include dioleyldimethyl ammonium chloride (i.e., di(octadec-z-9-enyl)dimethylammonium chloride) (DODMAC) and dierucyldimethyl ammonium chloride (i.e., di(docos-z-13-enyl)dimethylammonium chloride) (DEDMAC). Depending upon the paper product characteristic requirements, the saturation level of the fatty acyl groups of the vegetable oils can be tailored. Variables that need to be adjusted to maximize the benefits of using unsaturated vegetable oil based acyl groups include the Iodine Value (IV) of the fatty acyl groups; and the cis/trans isomer weight ratios in the fatty acyl groups.
    Type: Grant
    Filed: September 20, 1994
    Date of Patent: April 23, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Dean V. Phan, Paul D. Trokhan
  • Patent number: 5510002
    Abstract: The internal bulk of a tissue web can be improved during manufacturing of the basesheet by subjecting the tissue web to differential pressure while supported on a coarse fabric at a consistency of about 30 percent or greater. The differential pressure, such as by applying vacuum suction to the underside of the coarse fabric, causes the wet web to deflect into the openings or depressions in the fabric and "pop" back, resulting in a substantial gain in thickness or internal bulk. The method is especially adapted to improve the internal bulk of wet-pressed tissue webs.
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: April 23, 1996
    Assignee: Kimberly-Clark Corporation
    Inventors: Michael A. Hermans, Fung-Jou Chen, Harry L. Spiegelberg, Bernhardt E. Kressner, Janice G. Nielsen
  • Patent number: 5507917
    Abstract: A doctor for creping tissue from a surface of a Yankee dryer is provided. The doctor includes a frame and a support which extends from the frame. A swing arm is pivotally secured to the support about a pivotal bearing. The swing arm defines a further bearing. A pivot extends through the further bearing for rotatable movement relative to the swing arm such that the pivot is rotatably supported by the swing arm. A doctor is rigidly secured to the pivot for doctoring the tissue from the surface of the dryer. A blade is removably secured to the doctor, the blade defining an operative edge which cooperates with the surface of the Yankee dryer for creping the tissue from the surface of the dryer. A loader is operatively connected to the pivot for rotating the pivot within the further bearing for loading the operative edge against the surface of the dryer.
    Type: Grant
    Filed: May 24, 1994
    Date of Patent: April 16, 1996
    Assignee: Beloit Technologies, Inc.
    Inventors: James J. Didier, Arnold J. Roerig
  • Patent number: 5505818
    Abstract: The internal bulk of a tissue web can be improved during manufacturing of the basesheet by subjecting the tissue web to differential pressure while supported on a coarse fabric at a consistency of about 30 percent or greater. The differential pressure, such as by applying vacuum suction to the underside of the coarse fabric, causes the wet web to deflect into the openings or depressions in the fabric and "pop" back, resulting in a substantial gain in thickness or internal bulk. The method is especially adapted to improve the internal bulk of wet-pressed tissue webs.
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: April 9, 1996
    Assignee: Kimberly-Clark Corporation
    Inventors: Michael A. Hermans, Fung-Jou Chen, Harry L. Spiegelberg, Bernhardt E. Kressner, Janice G. Nielsen
  • Patent number: 5501768
    Abstract: The throughdryability of dewatered, but wet, sheets made from papermaking fibers can be significantly increased by subjecting an aqueous suspension of the fibers at high consistency to elevated temperatures with sufficient working of the fibers. Such a treatment is particularly effective for improving the efficiency of throughdrying processes used in the manufacture of certain products, such as tissues and paper towels, made from furnishes having a significant amount of secondary or recycled fibers.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: March 26, 1996
    Assignee: Kimberly-Clark Corporation
    Inventors: Michael A. Hermans, Robert J. Makolin, Kristin A. Goerg-Wood, Fung-jou Chen
  • Patent number: 5495647
    Abstract: Apparatus for longitudinal compressive treatment of a continuous web of material. The apparatus comprises a cylindrical drive roll for advancing the web, a smooth-surfaced primary member to press the web against the drive roll, and a generally-stationary retarder downstream of the primary member to engage and retard the web before the web has left the drive roll. The retarder surface has a large multiplicity of parallel ridges and grooves set on a diagonal, and effective to cause longitudinal compression of the web and to cause the web to flow at an angle to the original direction of drive. The retarder surface also has a reorienting retarding surface, effective after the web advances incrementally at the angle, to effect further compression and to reorient the travel of the web to be generally parallel to the original direction of drive.
    Type: Grant
    Filed: February 22, 1993
    Date of Patent: March 5, 1996
    Assignee: Richard C. Walton
    Inventors: Richard R. Walton, George E. Munchbach, Richard C. Walton
  • Patent number: 5494731
    Abstract: Tissue papers, in particular pattern densified tissue papers, having an enhanced tactile sense of softness when treated with certain nonionic softeners are disclosed. These nonionic softeners are biodegradable and comprise sorbitan esters, ethoxylated/propoxylated versions of these sorbitan esters, or mixtures thereof. The softener is typically applied from an aqueous dispersion or solution thereof to at least one surface of the dry tissue paper web.
    Type: Grant
    Filed: May 4, 1994
    Date of Patent: February 27, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Saeed Fereshtehkhou, Larry N. Mackey, Dean V. Phan
  • 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: 5490903
    Abstract: In the manufacture of soft tissue products such as facial and bath tissue, a creping adhesive composition comprising from about 0.05 to about 20 dry weight percent of an ethoxylated acetylenic diol has been found to reduce skulch, improve creping blade life, and improve crepe quality. The creping adhesive composition is particularly useful for creping throughdried tissue webs.
    Type: Grant
    Filed: March 6, 1995
    Date of Patent: February 13, 1996
    Assignee: Kimberly-Clark Corporation
    Inventors: Franklin M. C. Chen, Frank G. Druecke
  • Patent number: 5489364
    Abstract: A creping system includes a Yankee dryer rotatable about its axis, a blade support mechanism which includes (a) a pair of guide rails, (b) a fixed attitude linear bearing engaging and translatable along each of the guide rails, each fixed attitude linear bearing being mounted on a block and (c) a combination linear-rotary bearing being carried by each block, the axis of each combination linear-rotary bearing being parallel to the generators of the surface of the Yankee dryer and collinear with the axis of the other combination linear-rotary bearing. A stub shaft engages each combination linear-rotary bearing, each stub shaft being translatable along, and rotatable about, the axis of its respective combination linear-rotary bearing. A blade holder is mounted between the stub shafts, and a blade mounted on the blade holder for engagement with the surface of the Yankee dryer.
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: February 6, 1996
    Assignee: James River Corporation of Virginia
    Inventor: Robert J. Marinack
  • Patent number: 5487813
    Abstract: Soft creped tissue paper products comprising papermaking fibers and a biodegradable crepe facilitating composition is disclosed. The crepe facilitating composition is a biodegradable bonding inhibitor, a cationic starch and a carboxymethyl cellulose. Preferably, the biodegradable bonding inhibitor is a biodegradable quaternary ammonium compound. The use of a biodegradable bonding inhibitor, a cationic starch and a carboxymethyl cellulose results in a creped tissue paper that is both strong and soft. A creped paper process comprising the addition of the crepe facilitating composition is also disclosed. The composition offers the potential to improve production capacity.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: January 30, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Kenneth D. Vinson, Paul T. Weisman, Dean V. Phan
  • Patent number: 5415737
    Abstract: Fibrous cellulose materials useful in the manufacture of soft, absorbent paper products such as paper towels, facial tissues, and toilet tissue are disclosed. The paper products contain a biodegradable vegetable oil based ester-functional quaternary ammonium chemical softening compound. Examples of preferred vegetable oil based ester-functional quaternary ammonium chemical softening compounds include diester dioleyldimethyl ammonium chloride (DEDODMAC) (i.e., di(octadec-z-9-oenoyloxyethyl)dimethylammonium chloride) and diester dierucyldimethyl ammonium chloride (DEDEDMAC) (i.e., di(docos-z-13-enoyloxyethyl)dimethylammonium chloride). Depending upon the paper product characteristic requirements, the saturation level of the fatty acyl groups of the vegetable oils can be tailored. Variables that need to be adjusted to maximize the benefits of using unsaturated vegetable oil based acyl groups include the Iodine Value (IV) of the fatty acyl groups; and the cis/trans isomer weight ratios in the fatty acyl groups.
    Type: Grant
    Filed: September 20, 1994
    Date of Patent: May 16, 1995
    Assignee: The Procter & Gamble Company
    Inventors: Dean V. Phan, Paul D. Trokhan
  • Patent number: 5415736
    Abstract: A sheet material, typically paper or cardboard, contains a natural, chemically untreated fibrous material and a secondary long-staple fiber material in a weight ratio comprised between (50-90):(10-50). It further contains fiber fines, at least one retention agent for these fines and at least one sheet strength improving agent. The sheet may be manufactured on paper making machines after preparing a mash from the components listed above and refining. The sheet material is intended to replace paper or cardboard normally made from chemically treated, expensive raw materials.
    Type: Grant
    Filed: February 5, 1993
    Date of Patent: May 16, 1995
    Inventor: Till Grether
  • Patent number: 5411636
    Abstract: The internal bulk of a tissue web can be improved during manufacturing of the basesheet by subjecting the tissue web to differential pressure while supported on a coarse fabric at a consistency of about 30 percent or greater. The differential pressure, such as by applying vacuum suction to the underside of the coarse fabric, causes the wet web to deflect into the openings or depressions in the fabric and "pop" back, resulting in a substantial gain in thickness or internal bulk. The method is especially adapted to improve the internal bulk of wet-pressed tissue webs.
    Type: Grant
    Filed: May 21, 1993
    Date of Patent: May 2, 1995
    Assignee: Kimberly-Clark
    Inventors: Michael A. Hermans, Fung-Jou Chen, Larry L. Spiegelberg, Bernhardt E. Kressner, Janice G. Neilson
  • Patent number: 5397437
    Abstract: In a known method of rebuilding a conventional tissue machine having a conventional C-wrap type twin wire forming section to a TAD machine, a TAD section, which includes a looped TAD fabric (24) and at least one TAD cylinder (22) located inside of the TAD fabric loop for thermally predrying the formed paper web (13) by passing hot air through the web, is incorporated in the machine.
    Type: Grant
    Filed: January 31, 1994
    Date of Patent: March 14, 1995
    Assignee: Valmet-Karlstad AB
    Inventor: Myren H. Ingemar
  • Patent number: 5382323
    Abstract: Improved halogen-free Yankee Dryer adhesives based on cross linked cat ionic polyaminoamide polymers are described. The adhesives are obtained by crosslinking a backbone cationic polymer formed by reacting a difunctional carboxylic acid with a polyamine containing at least one secondary amine, said crosslinking achieved by the use of a multi-functional aidehyde. The preferred adhesive is that obtained by reacting adipic acid with diethylenetriamine, at essentially equimolar ratios of from about 1.2: 1.0 to about 1.0: 1.2, and then crosslinking with a dialdehyde selected from glutaraldehyde, glyoxal, or mixtures thereof. Improved adhesion and peel strength are obtained when using the new materials as compared to materials now commercially used.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: January 17, 1995
    Assignee: Nalco Chemical Company
    Inventors: Gary S. Furman, Jr., James F. Kneller, Kristy M. Bailey, Martha R. Finck, Winston Su
  • Patent number: 5374334
    Abstract: The invention provides a method for manufacturing tissue paper. According to the method, a yankee dryer adhesive composition is applied to a metal surface of a drying drum. The yankee dryer adhesive composition preferably includes from about 1 to about 100 mole percent vinylamine and from about 1 to about 99 of at least one monomer selected from the group consisting of vinylformamide, vinyl acetate and vinyl alcohol. The yankee dryer adhesive composition is contacted with a continuous paper web. The continuous paper web is then dried. The dry continuous paper web is creped with a metal blade to form tissue paper.
    Type: Grant
    Filed: December 6, 1993
    Date of Patent: December 20, 1994
    Assignee: Nalco Chemical Company
    Inventors: Anthony G. Sommese, Gary S. Furman, Jr.
  • Patent number: 5370773
    Abstract: Disclosed is a method for producing an absorbent creped cellulosic sheet having a high level of surface-perceived softness that comprises continuously forming a web of cellulosic papermaking fibers, adhering said web to a thermal drying means by means of an adhesive compositon that includes a non-self-crosslinkable polymer or oligomer having functional groups that can be crosslinked by ionic crosslinking, a metallic crosslinking agent having a valence of four or more, and a phosphate surfactant, and creping said treated web from said thermal drying means.
    Type: Grant
    Filed: November 9, 1993
    Date of Patent: December 6, 1994
    Assignee: James River Corporation of Virginia
    Inventors: Phuong V. Luu, Stephen R. Collins, Cristian M. Neculescu
  • 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: 5364504
    Abstract: A backside textured papermaking belt is disclosed which is comprised of a framework and a reinforcing structure. The framework has a first surface which defines the paper-contacting side of the belt, a second surface opposite the first surface, and conduits which extend between first and second surfaces of the belt. The first surface of the framework has a paper side network formed therein which defines the conduits. The second surface of the framework has a backside network with passageways that provide surface texture irregularities in the backside network. The papermaking belt is made by casting a photosensitive resinous material over and through the reinforcing structure while the reinforcing structure travels over a textured surface, and then exposing the photosensitive resinous material to light of an activating wavelength through a mask which has transparent and opaque regions.
    Type: Grant
    Filed: April 12, 1993
    Date of Patent: November 15, 1994
    Assignee: The Procter & Gamble Company
    Inventors: John A. Smurkoski, Gary L. Leggitt, Gregory L. Wilson
  • Patent number: 5356519
    Abstract: The present invention is directed to a support beam for a scraper blade which is in contact with the shell surface of a drying cylinder. The support beam comprises an oblong hollow body made of a fiber composite material wherein the major fiber orientation is essentially in the longitudinal expanse of the hollow body. The hollow body has at least two longitudinal walls of convex curvature as well as two transition sections of convex rounding which connect the longitudinal walls to one another. The radius of curvature of each longitudinal wall is greater than its width while the radius of curvature of each transition zone is smaller than the width of an adjacent longitudinal wall.
    Type: Grant
    Filed: December 9, 1992
    Date of Patent: October 18, 1994
    Assignee: J.M. Voith GmbH
    Inventors: Joachim Grabscheid, Thomas Appels
  • Patent number: 5354425
    Abstract: Tissue papers, in particular pattern densified tissue papers, having an enhanced tactile sense of softness when treated with certain polyhydroxy fatty acid amide softener systems that are biodegradable are disclosed. The polyhydroxy fatty acid amides have the formula: ##STR1## wherein R.sup.1 is H, C.sub.1 -C hydrocarbyl, 2-hydroxyethyl, 2-hydroxypropyl, methoxyethyl, methoxypropyl or a mixture thereof; R.sup.2 is a C.sub.5 -C.sub.31 hydrocarbyl group; and Z is a polyhydroxyhydrocarbyl moiety having a linear hydrocarbyl chain with at least 3 hydroxyls directly connected to the chain.
    Type: Grant
    Filed: December 13, 1993
    Date of Patent: October 11, 1994
    Assignee: The Procter & Gamble Company
    Inventors: Larry N. Mackey, Saeed Ferershtehkhou, Jeffrey J. Scheibel
  • Patent number: 5348620
    Abstract: The throughdryability of dewatered, but wet, sheets made from papermaking fibers can be significantly increased by subjecting an aqueous suspension of the fibers at high consistency to elevated temperatures with sufficient working of the fibers. Such a treatment is particularly effective for improving the efficiency of throughdrying processes used in the manufacture of certain products, such as tissues and paper towels, made from furnishes having a significant amount of secondary or recycled fibers.
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: September 20, 1994
    Assignee: Kimberly-Clark Corporation
    Inventors: Michael A. Hermans, Robert J. Makolin, Kristin A. Goerg, Fung-Jou Chen
  • Patent number: 5338407
    Abstract: A process for making paper to enhance the dry strength of the paper produced without reducing its softness, that comprises adding to a bleached pulp furnish a mixture of an anionic carboxymethyl guar or a carboxymethyl hydroxyethyl guar with a cationic guar that may be prepared by reacting a natural guar with caustic and subsequently with quaternary ammonium chloride.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: August 16, 1994
    Assignee: Hercules Incorporated
    Inventor: Sunil P. Dasgupta
  • Patent number: 5334286
    Abstract: Tissue papers, in particular pattern densified tissue papers, having an enhanced tactile sense of softness when treated with tri-component biodegradable softener compositions are disclosed. These tri-component softener compositions comprise nonionic softeners, nonionic surfactant compatibilizers and polyhydroxy compounds. The weight ratio of the nonionic softeners to the nonionic surfactant compatibilizers ranges typically from about 10:1 to 1:10. The weight ratio of the nonionic softeners to the polyhydroxy compounds ranges typically from about 10:1 to 1:10. The tri-component biodegradable softeners are typically applied from an aqueous dispersion to at least one surface of the dry tissue paper web.
    Type: Grant
    Filed: May 13, 1993
    Date of Patent: August 2, 1994
    Assignee: The Procter & Gamble Company
    Inventors: Dean Van Phan, Paul D. Trokhan
  • Patent number: 5328565
    Abstract: The present invention is directed to a single lamina tissue paper having visually discernible, large scale patterns made during the drying step of the papermaking process. Particularly, the tissue is made on a blow through drying belt having a pattern of alternating knuckles and deflection conduits. This pattern produces a like pattern of regions in the paper having alternating values of crepe frequencies, opacities and elevations. The differences in these values produces a visually discernible pattern.
    Type: Grant
    Filed: March 18, 1993
    Date of Patent: July 12, 1994
    Assignee: The Procter & Gamble Company
    Inventors: David M. Rasch, Thomas A. Hensler, Dean J. Daniels
  • Patent number: 5326434
    Abstract: Addition of a polyhydric alcohol to creping adhesive formulation comprising a water soluble binder increases operational efficiency.
    Type: Grant
    Filed: May 7, 1993
    Date of Patent: July 5, 1994
    Assignee: Scott Paper Company
    Inventors: Frank E. Carevic, Gregory J. Rose
  • Patent number: 5320710
    Abstract: A paper product having increased thickness, absorbency, and softness without altering product strength wherein a fiber blend is provided being up to 50% softwood fibers and up to 100% Hesperaloe funifera fibers.
    Type: Grant
    Filed: October 13, 1993
    Date of Patent: June 14, 1994
    Assignee: James River Corporation of Virginia
    Inventors: R. Heath Reeves, Janet D. Plantikow, Laura J. Smith, T. Philips Oriaran, Anthony O. Awofeso, Gary L. Worry
  • Patent number: 5312522
    Abstract: Fibrous cellulose materials useful in the manufacture of soft, absorbent paper products such as paper towels, facial tissues, and toilet tissue are disclosed. The paper products contain a biodegradable chemical softening composition comprising a mixture of a biodegradable quaternized ester-amine compound and a polyhydroxy compound. Preferred biodegradable quaternized ester-amine compounds include diester dialkyldimethylammonium salts such as the diester ditallow dimethyl ammonium chloride, diester di(touch hydrogenated) tallow dimethyl ammonium chloride and diester di(hydrogenated) tallow dimethyl ammonium chloride. Preferred polyhydroxy compounds are selected from the group consisting of glycerol, and polyethylene glycols and polypropylene glycols having a weight average molecular weight from about 200 to 4000.
    Type: Grant
    Filed: January 14, 1993
    Date of Patent: May 17, 1994
    Assignee: Procter & Gamble Company
    Inventors: Dean Van Phan, Paul D. Trokhan, Toan Trinh
  • Patent number: 5306395
    Abstract: In a known method of rebuilding a conventional tissue machine having a conventional C-wrap type twin wire forming section to a TAD machine, a TAD section, which includes a looped TAD fabric (24) and at least one TAD cylinder (22) located inside of the TAD fabric loop for thermally predrying the formed paper web (13) by passing hot air through the web, is incorporated in the machine.
    Type: Grant
    Filed: April 5, 1993
    Date of Patent: April 26, 1994
    Assignee: Valmet-Karlstad AB
    Inventor: H. Ingemar Myren
  • Patent number: 5277761
    Abstract: A cellulosic fibrous structure, such as paper. The fibrous structure has at least three intensively distinct regions. The regions are distinguished from one another by intensive properties such is basis weight, density and projected average pore size, or thickness. In one embodiment, the fibrous structure has regions of two basis weights, a high basis weight region and a low basis weight region. The high basis weight region is further subdivided into low and high density regions so that a fibrous structure having three regions is produced.A second embodiment is a four region fibrous structure. Two of the regions have generally equivalent relatively high basis weights and two of the regions having generally equivalent relatively low basis weights.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: January 11, 1994
    Assignee: The Procter & Gamble Company
    Inventors: Dean Van Phan, Paul D. Trokhan
  • Patent number: 5275698
    Abstract: A process for making paper to enhance the softness of the paper produced without reducing its dry strength comprises adding to the pulp slurry as a binder resin a cellulosic polymer that exhibits a cloud point in aqueous solution, and allowing the dissolved polymer to coalesce into fine colloidal particles at a temperature above the cloud point either before or after it is added to the slurry.
    Type: Grant
    Filed: March 9, 1992
    Date of Patent: January 4, 1994
    Assignee: Hercules Incorporated
    Inventors: Sunil P. Dasgupta, Herbert H. Espy
  • Patent number: 5269883
    Abstract: In the manufacture of stretchable webs such as creped tissue, nonwovens, and the like, in which the web is formed and thereafter wound onto a reel, basis weight control of the web on the reel is accomplished by measuring the speed and basis weight of the web prior to winding the web onto the reel and calculating the basis weight of the web on the reel. In response to this calculated value, either the upstream flow of material or the downstream speed of the web (reel speed) are adjusted to obtain the desired basis weight of the web at the reel.
    Type: Grant
    Filed: November 26, 1990
    Date of Patent: December 14, 1993
    Assignee: Kimberly-Clark Corporation
    Inventor: Paul D. Beuther
  • Patent number: 5264082
    Abstract: Tissue paper webs useful in the manufacture of soft, absorbent products such as paper towels, napkins, and facial tissues, and processes for making the webs. The tissue paper webs comprise papermaking fibers, a biodegradable quaternized amine-ester softening compound, a wetting agent, and a permanent wet strength resin. The process comprises a first step of forming an aqueous papermaking furnish from the above-mentioned components. The second and third steps in the basic process are the deposition of the papermaking furnish onto a foraminous surface such as a Fourdrinier wire and removal of the water from the deposited furnish. An alternate process involves the use of the furnish containing the aforementioned components in a papermaking process which will produce a pattern densified fibrous web having a relatively high bulk field of relatively low fiber density in a patterned array of spaced zones of relatively high fiber density.
    Type: Grant
    Filed: April 9, 1992
    Date of Patent: November 23, 1993
    Assignee: Procter & Gamble Company
    Inventors: Dean V. Phan, Paul D. Trokhan
  • Patent number: 5262007
    Abstract: Tissue paper webs useful in the manufacture of soft, absorbent products such as napkins, facial tissues, and sanitary tissues, and processes for making the webs. The tissue paper webs comprise papermaking fibers, a biodegradable quaternized amine-ester softening compound, a wetting agent, and a temporary wet strength resin. The process comprises a first step of forming an aqueous papermaking furnish from the above-mentioned components. The second and third steps in the basic process are the deposition of the papermaking furnish onto a foraminous surface such as a Fourdrinier wire and removal of the water from the deposited furnish. An alternate process involves the use of the furnish containing the aforementioned components in a papermaking process which will produce a pattern densified fibrous web having a relatively high bulk field of relatively low fiber density in a patterned array of spaced zones of relatively high fiber density.
    Type: Grant
    Filed: April 9, 1992
    Date of Patent: November 16, 1993
    Assignee: Procter & Gamble Company
    Inventors: Dean V. Phan, Bart S. Hersko
  • Patent number: 5246544
    Abstract: A creping adhesive is described which provides the ability to readily control glass transition temperature (Tg) and adhesion and which can be easily removed from dryer surfaces. The creping adhesive contains a crosslinkable polymer and preferably an ionic crosslinking agent such as metal cations having a valence of three or more.
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: September 21, 1993
    Assignee: James River Corporation of Virginia
    Inventors: David H. Hollenberg, Phuong Van Luu, Stephen R. Collins
  • Patent number: 5240562
    Abstract: Fibrous cellulose material useful in the manufacture of soft, absorbent paper products such as paper towels, facial tissues, and toilet tissue are disclosed. The paper products contain a chemical softening composition comprising a mixture of a quaternary ammonium compound and a polyhydroxy compound. Preferred quaternary ammonium compound include dialkyldimethylammonium salts such as di(hydrogenated) tallow dimethyl ammonium chloride and di(hydrogenated) tallow dimethyl ammonium methyl sulfate. Preferred polyhydroxy compounds are selected from the group consisting of glycerol, and polyethylene glycols and polypropylene glycols having a weight average molecular weight from about 200 to 4000.
    Type: Grant
    Filed: October 27, 1992
    Date of Patent: August 31, 1993
    Assignee: Procter & Gamble Company
    Inventors: Dean V. Phan, Paul D. Trokhan
  • Patent number: 5234547
    Abstract: A method of creping a paper is described which comprises applying to the creping drum prior to the application of the paper web to be creped, a synthetic anionic polymer.
    Type: Grant
    Filed: March 23, 1992
    Date of Patent: August 10, 1993
    Assignee: W.R. Grace & Co.-Conn.
    Inventors: Paul Knight, Ulrich Welkener
  • 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
  • Patent number: 5223096
    Abstract: Tissue paper webs useful in the manufacture of soft, absorbent products such as paper towels, napkins, and facial tissues, and processes for making the webs. The tissue paper webs comprise papermaking fibers, a quaternary ammonium compound, a polyhydroxy plasticizer, and a permanent wet strength resin. The process comprises a first step of forming an aqueous papermaking furnish from the above-mentioned components. The second and third steps in the basic process are the deposition of the papermaking furnish onto a foraminous surface such as a Fourdrinier wire and removal of the water from the deposited furnish. An alternate process involves the use of the furnish containing the aforementioned components in a papermaking process which will produce a pattern densified fibrous web having a relatively high bulk field of relatively low fiber density in a patterned array of spaced zones of relatively high fiber density.
    Type: Grant
    Filed: November 1, 1991
    Date of Patent: June 29, 1993
    Assignee: Procter & Gamble Company
    Inventors: Dean V. Phan, Paul D. Trokhan
  • Patent number: 5223092
    Abstract: A sheet of fibrous web material having one textile-like surface and an opposite substantially smooth surface, a grain depth memory factor greater than 80, an apparent density in the range of about 4 to about 7 pound ream/caliper point in mils, a caliper (at a basis weight between about 50 and about 75 pounds/3000 square feet) greater than 0.008 inch, and a machine-direction sheet stretch of at least 5%.
    Type: Grant
    Filed: April 30, 1991
    Date of Patent: June 29, 1993
    Assignee: James River Corporation
    Inventors: Gary C. Grinnell, Bernard G. Klowak, Michael P. Bouchette
  • Patent number: 5217576
    Abstract: Tissue paper webs useful in the manufacture of soft, absorbent products such as napkins, facial tissues, and sanitary tissues, and processes for making the webs. The tissue paper webs comprise papermaking fibers, a quaternary ammonium compound, a polyhydroxy plasticizer, and a temporary wet strength resin. The process comprises a first step of forming an aqueous papermaking furnish from the above-mentioned components. The second and third steps in the basic process are the deposition of the papermaking furnish onto a foraminous surface such as a Fourdrinier photo-polymer wire and removal of the water from the deposited furnish. An alternate process involves the use of the furnish containing the aforementioned components in a papermaking process which will produce a pattern densified fibrous web having a relatively high bulk field of relatively low fiber density in a patterned array of spaced zones of relatively high fiber density.
    Type: Grant
    Filed: November 1, 1991
    Date of Patent: June 8, 1993
    Inventor: Dean Van Phan
  • Patent number: 5200035
    Abstract: A method of foam forming of paper includes the steps of metering a controlled feed of fiber dispersed in an aqueous liquid into a dewatering device, wherein the consistency of the fiber dispersed in the aqueous liquid input to the dewatering device is between about 0.5 and about 7% by weight. A uniform continuous strand of semi-moist pulp is obtained wherein the consistency of the semi-moist pulp leaving the dewatering device is between about 8 and 30% by weight. A stream of a foamed aqueous admixture is obtained and introduced into a dispersing mixer having shearing action extending substantially throughout a zone substantially athwart the flow path of the uniform continuous strand and the foamed aqueous stream and forming a stream of dispersed fiber bearing aqueous foam. The dispersed fiber bearing aqueous stream is conducted to the inlet of a positive displacement pump.
    Type: Grant
    Filed: January 24, 1992
    Date of Patent: April 6, 1993
    Assignee: James River Corporation of Virginia
    Inventors: Dinesh M. Bhat, Robert J. Marinack, Bruce W. Janda
  • Patent number: 5179150
    Abstract: Improved creping compositions comprising glyoxylated vinylamide polymers in combination with polyvinyl alcohol are disclosed.
    Type: Grant
    Filed: October 7, 1991
    Date of Patent: January 12, 1993
    Assignee: Nalco Chemical Company
    Inventors: Gary S. Furman, Jr., Craig Gruen, Phuong Van Luu
  • Patent number: 5173351
    Abstract: A combined sheet material including at least two absorbent sheets, such as of cellulose-cotton, each having a density of between from 10 to 40 g/m.sup.2. Each of the sheets is separately embossed by calendaring them into a pattern of protuberances distributed in a first pitch along a first direction for each sheet (P.sub.1 sm, P.sub.2 sm) and in a second pitch in a second direction for each sheet (P.sub.1 st, P.sub.2 st) which subtends the first direction at an angle other than zero. The end of the protuberances extending away from the plane of each of the sheets includes a flat bonding element whereby the two sheets are bonded to each other, preferably by gluing. The pattern of each of the sheets is characterized in that the first pitch of each sheet along the first direction is different and related by the equation..vertline.1/P.sub.1 sm-1/P.sub.2 sm.vertline..gtoreq.
    Type: Grant
    Filed: October 30, 1990
    Date of Patent: December 22, 1992
    Assignee: Kaysersberg, S.A.
    Inventors: Remy Ruppel, Pierre Laurent, Joel Hungler
  • Patent number: 5164046
    Abstract: A process for making soft tissue paper which includes the steps of wet-laying cellulosic fibers to form a web, applying to the wet web, at a fiber consistency level of from about 10% to about 80%, a polysiloxane material, and then drying and creping the web to form the finished tissue paper. The process may further include the steps of applying an effective amount of a surfactant material to enhance softness and/or wettability control; and/or an effective amount of a binder material, such as starch, for linting control, and/or to contribute tensile strength to the tissue paper.
    Type: Grant
    Filed: May 7, 1991
    Date of Patent: November 17, 1992
    Assignee: The Procter & Gamble Company
    Inventors: Robert S. Ampulski, Wolfgang U. Spendel
  • Patent number: 5164045
    Abstract: A foam-formed nonlaminated stratified paper tissue includes a first layer of bulky anfractuous fiber blend and a second layer of fiber blend having enhanced softness and caliper as compared to a conventional tissue of equivalent basis weight and strength. In a preferred embodiment, the first layer is a fiber blend of a bulky anfractuous fiber and a chemithermomechanical pulp. A method of forming a foam-formed nonlaminated stratified web of paper tissue material includes supplying a first furnish of a bulky anfractuous fiber blend directly to a foraminous support member. A second furnish of fiber blend is supplied onto the first furnish disposed on the foraminous support member. The furnishes may also be supplied in reverse order depending upon the forming configuration of the machine used. The first and second furnishes form a web of paper tissue material which is dried in a drying device to a predetermined dryness.
    Type: Grant
    Filed: March 4, 1991
    Date of Patent: November 17, 1992
    Assignee: James River Corporation of Virginia
    Inventors: Anthony O. Awofeso, Frank D. Harper