Tissue sheets containing multiple polysiloxanes and having regions of varying hydrophobicity

• US 7,811,948 B2
• Filed: 12/19/2003
• Issued: 10/12/2010
• Est. Priority Date: 12/19/2003
• Status: Expired due to Fees

• Current Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Original Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Inventors: Higgins, Matthew Edmund, Shannon, Thomas Gerard
• Primary Examiner(s): Ruddock; Ula C
• Application Number:
  US10/741,036
• Publication Number:
  US 20050136759A1
• Time in Patent Office: 2,489 Days
• Field of Search: 442/64, 442/79, 442/86, 442/118, 428/195, 428/153, 428/211
• US Class Current: 442/64
• CPC Class Codes: D21H 17/59 obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon
• CPC Class Codes: D21H 21/22 Agents rendering paper porous, absorbent or bulky
• CPC Class Codes: D21H 27/02 Patterned paper patterned coatings D21H19/66; embossing B31F1/07; prepared on the paper-making machines D21F11/00
• CPC Class Codes: D21H 27/30 Multi-ply for surface covering D21H27/18; making on paper-making machines D21F9/00, D21F11/00
• CPC Class Codes: Y10T 428/24455 Paper
• CPC Class Codes: Y10T 428/24802 Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
• CPC Class Codes: Y10T 428/24934 including paper layer
• CPC Class Codes: Y10T 442/20 Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
• CPC Class Codes: Y10T 442/2041 Two or more non-extruded coatings or impregnations
• CPC Class Codes: Y10T 442/2164 Coating or impregnation specified as water repellent
• CPC Class Codes: Y10T 442/2213 Coating or impregnation is specified as weather proof, water vapor resistant, or moisture resistant
• CPC Class Codes: Y10T 442/2221 Coating or impregnation is specified as water proof
• CPC Class Codes: Y10T 442/2484 Coating or impregnation is water absorbency-increasing or hydrophilicity-increasing or hydrophilicity-imparting
• CPC Class Codes: Y10T 442/60 Nonwoven fabric [i.e., nonwoven strand or fiber material]
• CPC Class Codes: Y10T 442/659 Including an additional nonwoven fabric

Abstract

Hydrophilic polysiloxanes and hydrophobic polysiloxanes are used in combination to provide tissues, such as facial and bath tissues, with an optimal combination of absorbency and softness. At least one of the hydrophobic and hydrophilic polysiloxanes is applied to the outer surface of the tissue product in a zoned pattern such that the absorbent rate of the tissue varies across the surface.

Claims

1. A tissue product comprising one or more plies of cellulose papermaking fibers and having two outer surfaces, said product further comprising a hydrophilic polysiloxane and a hydrophobic polysiloxane, at least one of which is positioned within the product in a zoned pattern having a macroscopically discernable variation in the distribution of said at least one polysiloxane such that the absorbent rate varies across at least one outer surface of the product as determined by the Ten Water Drop Test, wherein the hydrophilic polysiloxane is uniformly distributed on at least one outer surface of the product and the hydrophobic polysiloxane is distributed in a macroscopically zoned pattern on the same surface of the product.

2. A tissue product comprising one or more plies of cellulose papermaking fibers and having two outer surfaces, said product further comprising a hydrophilic polysiloxane and a hydrophobic polysiloxane, at least one of which is positioned within the product in a zoned pattern having a macroscopically discernable variation in the distribution of said at least one polysiloxane such that the absorbent rate varies across at least one outer surface of the product as determined by the Ten Water Drop Test, wherein the hydrophobic polysiloxane is uniformly distributed on at least one outer surface of the product and the hydrophilic polysiloxane is distributed in a macroscopically zoned pattern on the same surface of the product.

3. A tissue product comprising one or more plies of cellulose papermaking fibers and having two outer surfaces, said product further comprising a hydrophilic polysiloxane and a hydrophobic polysiloxane, at least one of which is positioned within the product in a zoned pattern having a macroscopically discernable variation in the distribution of said at least one polysiloxane such that the absorbent rate varies across at least one outer surface of the product as determined by the Ten Water Drop Test, wherein both the hydrophobic polysiloxane and the hydrophilic polysiloxane are positioned on one or both outer surfaces in striped patterns, and further wherein the hydrophilic polysiloxane stripes are offset from the hydrophobic polysiloxane stripes.

4. A tissue product comprising one or more plies of cellulose papermaking fibers and having two outer surfaces, said product further comprising a hydrophilic polysiloxane and a hydrophobic polysiloxane, at least one of which is positioned within the product in a zoned pattern having a macroscopically discernable variation in the distribution of said at least one polysiloxane such that the absorbent rate varies across at least one outer surface of the product as determined by the Ten Water Drop Test, wherein the hydrophilic polysiloxane is distributed in a dot pattern and the hydrophilic polysiloxane is distributed in a stripe pattern.

5. A tissue product comprising one or more plies of cellulose papermaking fibers and having two outer surfaces, said product further comprising a hydrophilic polysiloxane and a hydrophobic polysiloxane, at least one of which is positioned within the product in a zoned pattern having a macroscopically discernable variation in the distribution of said at least one polysiloxane such that the absorbent rate varies across at least one outer surface of the product as determined by the Ten Water Drop Test, wherein the hydrophilic polysiloxane is distributed in a stripe pattern and the hydrophobic polysiloxane is distributed in a distinct spaced-apart element pattern.