US 12,188,182 B2
Durable and dispersible creped multi-ply tissue
Kevin Joseph Vogt, Neenah, WI (US); Mark William Sachs, Appleton, WI (US); Erin Ann McCormick, Neenah, WI (US); Devon Gaynelle Curley, Menasha, WI (US); Sara Jane Wille Stabelfeldt, Appleton, WI (US); Nathan John Vogel, Neenah, WI (US); and Christopher Steven LeCount, Greenville, WI (US)
Assigned to Kimberly-Clark Worldwide, Inc., Neenah, WI (US)
Filed by Kimberly-Clark Worldwide, Inc., Neenah, WI (US)
Filed on Dec. 6, 2023, as Appl. No. 18/530,474.
Application 18/530,474 is a continuation of application No. 18/136,389, filed on Apr. 19, 2023, granted, now 11,885,073.
Application 18/136,389 is a continuation of application No. 17/749,318, filed on May 20, 2022, granted, now 11,661,707, issued on May 30, 2023.
Application 17/749,318 is a continuation of application No. 17/417,184, granted, now 11,371,191, issued on Jun. 28, 2022, previously published as PCT/US2020/025226, filed on Mar. 27, 2020.
Claims priority of provisional application 62/825,895, filed on Mar. 29, 2019.
Prior Publication US 2024/0141593 A1, May 2, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. D21H 27/40 (2006.01); A47K 10/16 (2006.01); B31F 1/07 (2006.01); B31F 1/12 (2006.01); D21H 27/00 (2006.01)
CPC D21H 27/40 (2013.01) [A47K 10/16 (2013.01); B31F 1/12 (2013.01); D21H 27/005 (2013.01); B31F 1/07 (2013.01); B31F 1/126 (2013.01); B31F 2201/0715 (2013.01); B31F 2201/0764 (2013.01)] 20 Claims
 
1. A method of manufacturing a multi-ply, creped and embossed tissue product comprising the steps of:
a. providing a first tissue web having a first outer surface and a second outer surface;
b. providing a heated creping surface;
c. applying a latex emulsion comprising a non-crosslinked vinyl acetate-ethylene polymer to at least the first outer surface of the first tissue web to yield a latex treated tissue web;
d. adhering the latex treated tissue web to the heated creping surface;
e. contacting the adhered tissue web with a creping blade to remove the adhered tissue web from the heated creping surface and yield a creped tissue ply;
f. conveying two or more creped tissue plies through an embossing-laminating device to yield a multi-ply, creped and embossed tissue product having a geometric mean tensile strength (GMT) from 700 to 1,700 g/3″, a Durability Index from 10.0 to 18.0 and a Slosh time from 10 seconds to 2 minutes.