Laminated multi-ply tissue products with improved softness and ply bonding
Products having improved ply bonding, moldability and drape and methods for making those products are described. The methods comprise producing a multi-ply adhesively bonded product comprising a pattern of uniformly spaced microembossed elements with a bond area of less than about 0.020 inches/sq. inch.
1. A multi-ply tissue product comprising;
a first tissue ply comprising a pattern of microembossments having less than about 16 embossments per square inch, the microembossments each comprising a base and a tip;
a second tissue ply bonded to the first tissue ply; and
an adhesive applied to the tips of the microembossments and configured to achieve a bond area of less than about .0015 inches/sq. inch.
2. The multi-ply tissue product of claim 1 , wherein the second tissue ply comprises a pattern of microembossments.
3. The multi-ply tissue product of claim 2 , wherein the first and second tissue plies are bonded in a nested fashion.
4. The multi-ply tissue product of claim 2 , wherein the first and second tissue plies are bonded in a tip-to-tip fashion.
5. The multi-ply tissue product of claim 1 , wherein the second tissue ply is an unembossed ply.
6. The multi-ply tissue product of claim 1 , wherein the product has a ply bond strength of at least about 1000 g/square inch of bond area.
7. The multi-ply tissue product of claim 1 , wherein the product has a ply bond strength of at least about 2000 g/ square inch of bond area.
8. The multi-ply tissue product of claim 1 , wherein the product has a ply bond strength of at least about 2200 g/square inch of bond area.
9. The multi-ply tissue product of claim 1 , wherein the product has a ply bond strength of at least about 2500 g/square inch of bond area.
10. The multi-ply tissue product of claim 2 , wherein the product further comprises a third ply.
11. The multi-ply tissue product of claim 10 , wherein the third ply is unembossed and is between the first and second plies.
12. The multi-ply tissue product of claim 1 , wherein the product has a bond area of less than about 0.0013 inches/square inch.
13. The multi-ply tissue product of claim 1 , wherein the product has a bond area of less than about 0.0012 inches/square inch.
14. The multi-ply tissue product of claim 1 , further comprising a decorative emboss pattern on either the first or second tissue plies or on both tissue plies.
15. The multi-ply tissue product of claim 1 , wherein the pattern of microembossments has a uniformity ratio of from about 1.0 to about 2.0.
16. The multi-ply tissue product of claim 1 , wherein the microembossments are spaced from about 0.01 to about 0.4 inches apart.
17. The multi-ply tissue product of claim 1 , wherein the microembossments are from about 0.014 to about 0.021 inches in diameter.
18. The multi-ply tissue product of claim 2 , wherein the microembossments have a uniformity ratio of about 1.0 and are spaced from about 0.01 to about 0.4 inches apart, and the plies have a ply bond strength of at least about 1000 g/square inch of bond area.
19. The multi-ply tissue product of claim 1 , wherein the first and second plies are both microembossed and a ply-bond strength of at least about 2000 g/square inch of bond area and both patterns of microembossments have a uniformity ratio of about 1.0.