IP Library Granted Patent US 7,611,765
Granted Patent B2
US 7,611,765 · App. 12/055,334 · Granted Nov 3, 2009

Stack of interfolded absorbent sheet products

Assignee: SCA Tissue North America LLC
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Quick Facts
Patent No.
US 7,611,765
App. No.
12/055,334
Granted
Nov 3, 2009
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 (20)

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 only two folds, the two folds each bisecting the napkin into two equal parts and being perpendicular to one another, thereby to form a napkin having four equal panels, and

wherein each of said absorbent sheets is entirely detached from all other absorbent sheets 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 having a basis weight of from about 10 to 20 lb.

3. The stack of interfolded absorbent sheet products according to claim 2 , wherein said basis weight is from about 11 to about 17 lb.

4. The stack of interfolded absorbent sheet products according to claim 3 , wherein said basis weight is from about 12 to about 15 lb.

5. The stack of interfolded absorbent sheet products according to claim 4 , wherein said basis weight is about 13 lb.

6. The stack of interfolded absorbent sheet products according to claim 1 , wherein each napkin within said stack receives between two inwardly facing adjacent panels a pair of adjacent panels from each of two napkins disposed respectively above and below said napkin in said stack.

7. The stack of interfolded absorbent sheet products according to claim 1 , wherein said embossed surface relief is applied by embossing rollers during a converting phase of manufacturing said absorbent sheet products.

8. The stack of interfolded absorbent sheet products according to claim 1 , wherein said embossed surface relief is applied by TAD formation of said absorbent sheets.

9. The stack of interfolded absorbent sheet products according to claim 1 , wherein said embossed surface relief is of a continuous pattern over an entire surface of said absorbent sheets.

10. The stack of interfolded absorbent sheet products according to claim 1 , wherein said embossed surface relief is applied along a peripheral region of said absorbent sheets.

11. In combination, a stack of interfolded absorbent sheet products according to claim 1 and a dispenser containing said stack, said dispenser comprising a downwardly-directed opening through which said absorbent sheets may be withdrawn one at a time.

12. The combination according to claim 11 , wherein solely the weight of said stack urges said sheets toward said downwardly-directed dispensing opening.

13. The combination according to claim 11 , wherein said dispenser comprises a main body portion housing said stack, said main body portion comprising at least one section oriented at an oblique angle in relation to a horizontal support surface for said dispenser.

14. A stack of interfolded absorbent sheet products, comprising a plurality of absorbent single ply sheets having a basis weight of from about 10 to 20 lb, each of said absorbent sheets is folded about axes that are perpendicular to one another, the absorbent sheets moreover comprising an embossed surface relief of a predetermined pattern or design applied by TAD formation of said absorbent sheets,

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 only two folds, the two folds each bisecting the napkin into two equal parts and being perpendicular to one another, thereby to form a napkin having four equal panels, and

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

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 Mar 26, 2008
From: HOCHTRITT, ROBERT C.; CONGER, ANDREW M.
To: SCA TISSUE NORTH AMERICA LLC
Reel/Frame 020700/0509 →
Continuity (2)
Continuation 1066069400 · Sep 12, 2003
Related Publication 20090024100A1 · Jan 22, 2009