Patents Represented by Attorney Gregory E. Croft
  • Patent number: 5913765
    Abstract: An improved system for embossing a pattern on an absorbent consumer paper product such as a paper towel includes a first pair of embossing rollers that are patterned to impress a relatively fine preparatory base pattern onto the web, and a second pair of embossing rollers that are patterned to impress a final pattern onto the web. The final pattern is of a type that would cause bursting of the absorbent paper web if the absorbent paper web was passed through the second pair of embossing rollers without first being passed through the first set of embossing rollers. As a result, the formation of the preparatory base pattern by the first set of embossing rollers creates stretchability in the absorbent paper web that enables the final pattern to be impressed thereon by the second pair of embossing rollers without bursting the absorbent paper web.
    Type: Grant
    Filed: March 2, 1995
    Date of Patent: June 22, 1999
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: William H. Burgess, John P. Thelman
  • Patent number: 5904971
    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: May 18, 1999
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Ralph L. Anderson, Kenneth C. Larson
  • Patent number: 5888347
    Abstract: Uncreped throughdried cellulosic webs having improved smoothness and stretch are produced by transferring a newly formed web from the forming fabric to a slower moving, high fiber support transfer fabric, preferably using a fixed gap or kiss transfer in which the forming fabric and the transfer fabric converge and diverge at the leading edge of the transfer shoe. The web is then transferred to a throughdrying fabric and throughdried to final dryness, producing a web having an improved softness due to increased surface smoothness.
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: March 30, 1999
    Assignee: Kimberly-Clark World Wide, Inc.
    Inventors: Steven Alexander Engel, Michael John Rekoske, Theodore Edwin Farrington, Jr., Stephen John Sudall, Paul Edward Williams, David Arthur Hyland
  • Patent number: 5885697
    Abstract: A soft tissue product is disclosed having uniformly distributed surface deposits of a solidified composition having a melting point of from about 30.degree. C. to about 70.degree. C. The solidified composition is applied to the outer surfaces of the tissue product in melted form, preferably by rotogravure printing. The solidified composition contains an oil, a wax, and preferably a fatty alcohol.
    Type: Grant
    Filed: December 12, 1997
    Date of Patent: March 23, 1999
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Duane Gerard Krzysik, Lee Patrick Garvey, Cynthia Watts Henderson, Michael Chauncey Tuck
  • 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: 5882478
    Abstract: The softness of tissue products, such as facial and bath tissue, is improved by the addition of a carboxylic acid ester. The carboxylic acid ester can be incorporated into the tissue by addition of the ester to the furnish prior to the formation of the tissue, or it can be topically applied to the tissue web after formation, either while the tissue web is still wet or after the tissue web has been dried.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: March 16, 1999
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventor: Wen Zyo Schroeder
  • Patent number: 5869075
    Abstract: A superior soft tissue product, such as facial tissue, bath tissue or paper towels and the like, can be made applying, on the surface(s) of the tissue, large numbers of individual deposits of a melted hydrophilic composition comprising a high molecular weight polyethylene glycol, a fatty alcohol (C.sub.14 -C.sub.30) and lipophilic emollients or solvents, including water, and thereafter resolidifying the composition to form a distribution, preferably a uniform distribution, of solid deposits on the surface(s) of the tissue. Because the composition is a solid at room temperature and rapidly solidifies after deposition, it has less tendency to penetrate and migrate into the sheet. These solid deposits are characterized by a penetration hardness of from about 5 to about 360 millimeters.
    Type: Grant
    Filed: August 15, 1997
    Date of Patent: February 9, 1999
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventor: Duane Gerard Krzysik
  • Patent number: 5865824
    Abstract: A novel absorbent structure is disclosed in which an initially flat, dense structure becomes a three-dimensional, high bulk, channeled structure upon wetting. The structure offers unusually high directionality in fluid transport to improve the distribution of fluid in longitudinal articles. The self-bulking of the wetted article can also lead to improved fit in articles such as diapers and in general increases the void volume of the wetted article for high absorbent capacity.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: February 2, 1999
    Inventors: Fung-jou Chen, Jeffrey Dean Lindsay
  • Patent number: 5853539
    Abstract: Dry strength additives used to enhance the properties of creped tissues are applied to the surface of the Yankee dryer along with the creping adhesive formulation and thereafter transferred to the tissue web as the tissue web is being adhered to the Yankee. When dry strength agents are applied in this manner, less dust and lint are accumulated resulting in improved productivity and product quality.
    Type: Grant
    Filed: July 21, 1997
    Date of Patent: December 29, 1998
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Michael John Smith, Stephen John McCullough
  • Patent number: 5849158
    Abstract: Creping doctor blades useful for making soft tissues are substantially improved by ion nitriding the surface(s) of the doctor blade to produce a hardened surface while retaining the resilient interior of the non-treated blade. The resulting blades have approximately a three-fold increase in blade life.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: December 15, 1998
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Peter King Costello, Clifford Lee Alberts
  • Patent number: 5832962
    Abstract: A papermaking fabric, particularly useful as a throughdrying fabric, which has shute and warp threads woven together to define a top surface plane on the sheet side containing only a number of relatively long warp knuckles at locations where one of the warp threads crosses over at least four of the shute threads. The long warp knuckles are positioned in a shed pattern to form (a) a first axis of bulky ridges that are defined by long warp knuckles positioned next to each other on adjacent warp threads, the first axis being disposed at a first angle with respect to the cross-direction of the drying fabric that is substantially between 68 and 90 degrees; and (b) a second axis formed by each of the long warp knuckles with other, overlapping long warp knuckles on nearby, but not immediately adjacent, warp threads, the second axis forming a second angle with respect to the cross-direction of the drying fabric of less than about 28 degrees.
    Type: Grant
    Filed: December 29, 1995
    Date of Patent: November 10, 1998
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Kenneth Kaufman, Jeff Herman
  • Patent number: 5830321
    Abstract: A method for improving the rush transfer of a web, such as a tissue web, is disclosed. The method provides for greater angles of convergence and divergence of the carrier fabric and the transfer fabric at the point of transfer by deflecting the carrier fabric toward the transfer fabric using a deflection element, such as a roll, positioned opposite the vacuum transfer head. The greater angles of convergence and divergence minimize the potential for undesirable macrofolds being formed in the web during transfer.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: November 3, 1998
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Jeffrey Dean Lindsay, Fung-jou Chen
  • Patent number: 5817400
    Abstract: Absorbent articles containing absorbent cores of fluff pulp frequently contain wrinkles in the absorbent core that run from side to side of the article, typically normal to the machine direction in the manufacturing process. Side-to-side wrinkles are deleterious in that they provide large flow channels for urine or other body fluids to escape to the edge of the article. Frequently, such wrinkles are present after manufacturing, before the article has been folded or worn. The cause of the wrinkles is believed to be due to natural instabilities during compression of the fluff pad shortly after it is formed. Means for reducing cross-directional wrinkles include the use of grooved, drilled, or patterned compression rolls to densify the fluff pulp while providing opportunities for reduced in-plane displacement during compression or, if in-plane displacement does occur, providing paths for cross-directional displacement as well as machine-direction displacement so that continuous CD wrinkles cannot form.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: October 6, 1998
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Fung-jou Chen, Jeffrey Dean Lindsay
  • Patent number: 5795377
    Abstract: Papermaking sludge can be modified to a modeling clay-like consistency by the addition of one or more dispersing agents, such as polyacrylamide. The modified papermaking sludge can be formed into a number of useful products, such as paper sheets or extruded products.
    Type: Grant
    Filed: August 5, 1997
    Date of Patent: August 18, 1998
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: James Jay Tanner, David Henry Hollenberg
  • Patent number: 5785813
    Abstract: An efficient and effective method for treating tissue making stock to make soft tissues involves adding a softening agent to a first papermaking furnish of short fibers, such as eucalyptus fibers. A second papermaking furnish of long fibers, such as softwood fibers, is blended with the short fiber furnish. Thereafter, wet strength agents and/or dry strength agents are added to the blended furnish. The treated furnish is then fed to a headbox and processed into soft tissue in any suitable manner.
    Type: Grant
    Filed: February 24, 1997
    Date of Patent: July 28, 1998
    Assignee: Kimberly-Clark Worldwide Inc.
    Inventors: Michael John Smith, Vinay Kumar Rao, Gary Lee Shanklin
  • Patent number: 5779860
    Abstract: Low-density uncreped through-air-dried webs containing bleached chemithermomechanical pulp fibers and a wet-strength resin are calendered to significantly increase density and reduce caliper. When wetted, these webs substantially return to their original caliper and density and substantially regain their original fluid-handling characteristics. Consequently these webs are very thin when dry and thick when wet. They can be used for a wide variety of applications, including paper towels, wipers and fluid-handling components for infant care and personal care products.
    Type: Grant
    Filed: December 17, 1996
    Date of Patent: July 14, 1998
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: David Henry Hollenberg, James Ellis Horton, Jr., Andrew Michael Lake
  • Patent number: 5779965
    Abstract: The crispness or clarity of embossed tissue is improved by embossing the tissue twice in two successive embossing nips formed between a rigid engraved embossing roll and a resilient backing roll. The hardness of the resilient backing roll in the first embossing nip is less than the hardness of the resilient backing roll in the second embossing nip. This form of double nip embossing is particularly effective for embossing tissue webs having high bulk and resiliency, such as soft uncreped throughdried tissues, which cannot be satisfactorily embossed by conventional methods.
    Type: Grant
    Filed: September 3, 1996
    Date of Patent: July 14, 1998
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Paul Douglas Beuther, Tammy Lynn Baum, Anthony Mark Gambaro, David Robert Gruber, Jeffrey Dean Lindsay
  • Patent number: 5776306
    Abstract: A method of making a bonded and creped type absorbent paper web that has improved bulk to peel strength characteristics includes steps of (a) printing a low density pattern of a bonding material onto a first and a second side of a paper web; and (b) in no particular sequence with respect to step (a), printing a high density pattern of a bonding material onto the first side of the paper web. Steps (a) and (b) are performed so that the high density pattern of bonding material penetrates into the paper web by a distance that is about 166 to about 470 percent of the distance by which the low density pattern of bonding material penetrates into the web. This results in a web that has superior bulk and peel strength characteristics. Another characteristic of the product is that it has a visible depression pattern in one surface, but not the other surface, which creates an attractive aesthetic effect and has functional benefits as well.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 7, 1998
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventor: Richard R. Hepford
  • Patent number: D405270
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: February 9, 1999
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Penelope Susan Horner-Long, Paul Myles Burden
  • Patent number: D405271
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: February 9, 1999
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: David John Unwin, Amanda Cooper, Stuart Hepburn