IP Library Granted Patent US 7,927,457
Granted Patent B2
US 7,927,457 · App. 12/609,108 · Granted Apr 19, 2011

Environmentally sustainable multiple ply paper product

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Quick Facts
Patent No.
US 7,927,457
App. No.
12/609,108
Granted
Apr 19, 2011
Kind
B2
Abstract

The present disclosure is generally directed to a multiple ply paper product which includes a first ply comprising virgin fiber, pre-consumer recycled fiber, or mixtures thereof and a second ply comprising at least about 30% by weight post-consumer recycled fiber, wherein the average pore size distribution of the first ply is greater than the average pore size distribution of the second ply.

Claims (24)

1. A multiple ply paper product comprising:

a first ply comprising virgin fiber, pre-consumer recycled fiber, or mixtures thereof; and

a second ply comprising at least about 30% by weight post-consumer recycled fiber,

wherein the average pore size distribution of said first ply is greater than the average pore size distribution of said second ply.

2. A multiple ply paper product as in claim 1 , wherein said second ply comprises at least about 50% by weight post-consumer recycled fiber.

3. A multiple ply paper product as in claim 1 , wherein said second ply comprises at least about 80% by weight post-consumer recycled fiber.

4. A multiple ply paper product as in claim 1 , wherein said second ply comprises 100% by weight post consumer recycled fiber.

5. A multiple ply paper product as in claim 1 , wherein said first ply comprises at least about 50% by weight pre-consumer recycled fiber.

6. A multiple ply paper product as in claim 1 , wherein said second ply has an average absorbent capacity of from about 1 g/g to about 7 g/g.

7. A multiple ply paper product as in claim 1 , wherein said second ply has an average absorbent capacity of from about 2 g/g to about 5 g/g.

8. A multiple ply paper product as in claim 1 , wherein said first ply has an average absorbent capacity of from about 6 g/g to about 9 g/g.

9. A multiple ply paper product as in claim 1 , wherein said second ply has an average absorbent capacity of from about 7 g/g to about 8 g/g.

10. A multiple ply paper product as in claim 1 , further comprising a third ply comprising virgin fiber, pre-consumer recycled fiber, or mixtures thereof.

11. A multiple ply paper product as in claim 10 , wherein said third ply is located between said first ply and said second ply.

12. A multiple ply product as in claim 1 wherein said first ply comprises a through air dried sheet of 100% virgin fiber.

13. A multiple product as in claim 12 wherein said second ply comprises a creped wet pressed sheet.

14. A multiple product as in claim 1 wherein the basis weight of said first ply is from about 90% to about 40% of the basis weight of said second ply.

15. A process for producing a multiple ply paper product comprising:

forming a first ply paper web comprising at least about 30% by weight post-consumer recycled fiber; and

joining said first ply paper web to a second ply paper web comprising virgin fiber, pie-consumer recycled fiber, or mixtures thereof, wherein the average pore size distribution of said first ply is greater than the average pore size distribution of said second ply.

16. A process as in claim 15 , further comprising joining said first ply paper web to a third ply paper web comprising virgin fiber, pre-consumer recycled fiber, or mixtures thereof, wherein the average pore size distribution of said first ply is greater than the average pore size distribution of said third ply.

17. A process as in claim 15 , wherein said second ply comprises at least about 50% by weight post-consumer recycled fiber.

18. A process as in claim 15 , wherein said first ply is laminated to said second ply.

19. A process as in claim 15 , wherein said first ply is crimped to said second ply.

Assignments (1)
NAME CHANGE Recorded Feb 3, 2015
From: KIMBERLY-CLARK WORLDWIDE, INC.
To: KIMBERLY-CLARK WORLDWIDE, INC.
Reel/Frame 034880/0704 →