US 11,987,030 B2
Laminated multi-ply tissue products with improved softness and ply bonding
John H. Dwiggins, Neenah, WI (US)
Assigned to GPCP IP Holdings LLC
Filed by GPCP IP Holdings LLC, Atlanta, GA (US)
Filed on May 18, 2020, as Appl. No. 16/876,317.
Application 16/876,317 is a division of application No. 15/696,771, filed on Sep. 6, 2017, granted, now 10,654,244.
Claims priority of provisional application 62/408,380, filed on Oct. 14, 2016.
Prior Publication US 2020/0298525 A1, Sep. 24, 2020
Int. Cl. B32B 3/28 (2006.01); B31F 1/07 (2006.01); B31F 5/04 (2006.01); B32B 29/00 (2006.01); B32B 37/00 (2006.01); B32B 37/12 (2006.01); B32B 38/06 (2006.01); B32B 38/18 (2006.01); D21F 11/00 (2006.01); D21H 27/00 (2006.01); D21H 27/30 (2006.01); D21H 27/32 (2006.01)
CPC B32B 3/28 (2013.01) [B31F 1/07 (2013.01); B31F 5/04 (2013.01); B32B 29/002 (2013.01); B32B 37/0076 (2013.01); B32B 37/12 (2013.01); B32B 38/06 (2013.01); B32B 38/1808 (2013.01); D21F 11/006 (2013.01); D21H 27/002 (2013.01); D21H 27/30 (2013.01); D21H 27/32 (2013.01); B31F 2201/0764 (2013.01); B31F 2201/0766 (2013.01); B31F 2201/0787 (2013.01); B32B 2250/26 (2013.01); B32B 2307/726 (2013.01); B32B 2317/12 (2013.01); B32B 2555/00 (2013.01)] 32 Claims
OG exemplary drawing
 
1. A method of minimizing ply separation in a multi-ply tissue product comprising:
embossing a first tissue ply with a microemboss pattern having less than 125 microemboss elements per square inch, and an emboss penetration of at least about 0.029 inches;
applying glue to the tops of the microemboss elements;
embossing a second tissue ply with a decorative emboss pattern; and
bonding the first tissue ply to a second tissue ply to achieve a bond area of less than 0.020 square inches per square inch;
wherein the microemboss pattern is a continuous pattern that covers at least about 75% of the area of the first tissue ply.