IP Library Granted Patent US 7,939,159
Granted Patent B2
US 7,939,159 · App. 12/577,988 · Granted May 10, 2011

Stack of interfolded absorbent sheet products

Assignee: SCA Tissue North America LLC
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Quick Facts
Patent No.
US 7,939,159
App. No.
12/577,988
Granted
May 10, 2011
Kind
B2
Abstract

A stack of interfolded absorbent sheet products comprises a plurality of absorbent sheets each of which is itself folded at least twice about axes that are perpendicular to one another. The absorbent sheets have an embossed surface relief of a predetermined pattern or design. Each of the absorbent sheets within the stack comprises at least one pair of panels sandwiched between a pair of adjacent panels of another of the absorbent sheets in the stack.

Claims (26)

1. A stack of interfolded absorbent sheet products, comprising a plurality of absorbent sheets each of which is itself folded at least twice about axes that are perpendicular to one another, the absorbent sheets moreover comprising an embossed surface relief of a predetermined pattern or design,

wherein each of said absorbent sheets within said stack comprises at least one pair of panels sandwiched between a pair of adjacent panels of another of said absorbent sheets within said stack,

wherein each of said absorbent sheets is a paper napkin having a first fold bisecting the napkin into two equal parts and at least one second fold perpendicular to said first fold, said second fold defining said pair of adjacent panels and dividing said first fold into a first portion positioned above said at least one pair of panels and a second portion positioned below said at least one pair of panels,

wherein each of said absorbent sheets is entirely detached from all other absorbent sheets within said stack,

wherein said at least one second fold is disposed parallel to and offset from a plane that is perpendicular to said first fold and bisects said absorbent sheet product, and

wherein each napkin within said stack is oriented oppositely from each preceding and succeeding napkin within said stack.

2. The stack of interfolded absorbent sheet products according to claim 1 , wherein each of said absorbent sheets is a single ply paper napkin.

3. The stack of interfolded absorbent sheet products according to claim 1 , wherein each of said absorbent sheets is a single ply paper napkin having a basis weight of from about 10 to 20 lb.

4. The stack of interfolded absorbent sheet products according to claim 3 , wherein said basis weight is from about 11 to about 17 lb.

5. The stack of interfolded absorbent sheet products according to claim 4 , wherein said basis weight is from about 12 to about 15 lb.

6. The stack of interfolded absorbent sheet products according to claim 5 , wherein said basis weight is about 13 lb.

7. The stack of absorbent sheet products according to claim 1 , wherein each of said absorbent sheets when unfolded has dimensions of approximately 8.5 inches by 13 inches.

8. The stack of absorbent sheet products according to claim 7 , wherein each of said absorbent sheets when folded has a rectangular configuration having a long side measuring approximately 6.5 inches.

9. A stack of interfolded absorbent sheet products, comprising a plurality of absorbent sheets each of which is itself folded at least twice about axes that are perpendicular to one another, the absorbent sheets moreover comprising an embossed surface relief of a predetermined pattern or design,

wherein each of said absorbent sheets within said stack comprises at least one pair of panels sandwiched between a pair of adjacent panels of another of said absorbent sheets within said stack,

wherein each of said absorbent sheets is a rectangular paper napkin having two shorter edges and two longer edges, a first fold parallel to the two shorter edges bisecting the napkin into two equal parts, and at least one second fold perpendicular to the first fold parallel to said two longer edges,

wherein said second fold defines said pair of adjacent panels and divides said first fold into a first portion positioned above said at least one pair of panels and a second portion positioned below said at least one pair of panels, and

wherein each napkin within said stack is oriented oppositely from each preceding and succeeding napkin within said stack.

10. The stack of interfolded absorbent sheet products according to claim 9 , wherein each of said absorbent sheets is a single ply paper napkin.

11. The stack of interfolded absorbent sheet products according to claim 9 , wherein each of said absorbent sheets is a single ply paper napkin having a basis weight of from about 10 to 20 lb.

12. The stack of interfolded absorbent sheet products according to claim 11 , wherein said basis weight is from about 11 to about 17 lb.

13. The stack of interfolded absorbent sheet products according to claim 12 , wherein said basis weight is from about 12 to about 15 lb.

14. The stack of interfolded absorbent sheet products according to claim 13 , wherein said basis weight is about 13 lb.

15. The stack of absorbent sheet products according to claim 9 , wherein each of said absorbent sheets when unfolded has dimensions of approximately 8.5 inches by 13 inches.

16. The stack of absorbent sheet products according to claim 15 , wherein each of said absorbent sheets when folded has a rectangular configuration having a long side measuring approximately 6.5 inches.

17. The stack of absorbent sheet products according to claim 9 , wherein said at least one second fold is disposed parallel to and offset from a plane that is perpendicular to said first fold and bisects said absorbent sheet product.

Assignments (2)
CHANGE OF NAME Recorded May 18, 2018
From: SCA TISSUE NORTH AMERICA LLC
To: ESSITY PROFESSIONAL HYGIENE NORTH AMERICA LLC
Reel/Frame 046184/0642 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 13, 2009
From: HOCHTRITT, ROBERT C.; CONGER, ANDREW M.
To: SCA TISSUE NORTH AMERICA LLC
Reel/Frame 023362/0344 →
Continuity (3)
Continuation 12055334 · Mar 26, 2008
Continuation 10660694 · Sep 12, 2003
Related Publication 20100025420A1 · Feb 4, 2010