Absorbent sanitary paper product

Patent metadata

Field	Value
Publication number	US-9464387-B2
Application number	US-201414168625-A
Country	US
Kind code	B2
Filing date	Jan 30, 2014
Priority date	Jan 30, 2014
Publication date	Oct 11, 2016
Grant date	Oct 11, 2016

Abstract

An absorbent sanitary paper product having a first network of fibers having a basis weight of less than about 95 g/m 2 , or a total dry tensile strength of less than about 8000 g/in, or a density of less than about 0.30 g/cm 3 measured at a pressure trap point (PTP) of 100 g/in 2 is disclosed. A bonding layer is applied to a surface thereof in a pattern, and a second network of fibers comprising individual fibers adhesively attached to the bonding layer and conforming with the pattern.

First claim

What is claimed is:

1. An absorbent sanitary paper product comprising a first network of fibers comprising cellulose fibers having a basis weight of less than about 95 g/m 2 , a bonding layer comprising a water soluble adhesive applied to a first surface thereof in a pattern, a second network of fibers comprising individual fibers having an average length at least about 20% greater than fibers comprising said first network of fibers adhesively attached to said bonding layer and conforming with said pattern, a second bonding layer applied to a second surface of said first network of fibers, and a third network of fibers comprising individual fibers adhesively attached to said second bonding layer.

2. The absorbent sanitary paper product of claim 1 wherein said first network of fibers has a basis weight of less than about 75 g/m 2 .

3. The absorbent sanitary paper product of claim 2 wherein said first network of fibers has a basis weight ranging from between about 10 g/m 2 and about 75 g/m 2 .

4. The absorbent sanitary paper product of claim 1 wherein said first network of fibers has a density of less than about 0.30 g/cm 3 measured at a pressure trap point (PTP) of 100 g/in 2 .

5. The absorbent sanitary paper product of claim 4 wherein said first network of fibers has a density ranging from about 0.12 g/cm 3 to about 0.05 g/cm 3 measured at a pressure trap point (PTP) of 100 g/in 2 .

6. The absorbent sanitary paper product of claim 1 wherein said first network of fibers has a total dry tensile strength of less than 8000 gf/in.

7. The absorbent sanitary paper product of claim 6 wherein said first network of fibers has a total dry tensile strength of less than 3000 gf/in.

8. An absorbent sanitary paper product comprising a first network of fibers comprising cellulose fibers having a total dry tensile strength of less than about 8000 gf/in, a first bonding layer comprising a water soluble adhesive applied to a first surface thereof in a pattern, a second network of fibers comprising individual fibers having an average length at least about 20% greater than fibers comprising said first network of fibers adhesively attached to said bonding layer and conforming with said pattern, a second bonding layer applied to a second surface of said first network of fibers, and a third network of fibers comprising individual fibers adhesively attached to said second bonding layer.

9. The absorbent sanitary paper product of claim 8 wherein said first network of fibers has a basis weight of less than about 75 g/m 2 .

10. The absorbent sanitary paper product of claim 9 wherein said first network of fibers has a basis weight ranging from between about 10 g/m 2 and about 75 g/m 2 .

11. The absorbent sanitary paper product of claim 8 wherein said first network of fibers has a density of less than about 0.30 g/cm 3 measured at a pressure trap point (PTP) of 100 g/in 2 .

12. The absorbent sanitary paper product of claim 11 wherein said first network of fibers has a density ranging from about 0.12 g/cm 3 to about 0.05 g/cm 3 measured at a pressure trap point (PTP) of 100 g/in 2 .

13. The absorbent sanitary paper product of claim 8 wherein said first network of fibers has a total dry tensile strength of less than 5000 gf/in.

14. The absorbent sanitary paper product of claim 13 wherein said first network of fibers has a total dry tensile strength of less than 3000 gf/in.

15. An absorbent sanitary paper product comprising a first network of fibers comprising cellulose fibers having a density of less than about 0.30 g/cm 3 measured at a pressure trap point (PTP) of 100 g/in 2 , a bonding layer comprising a water soluble adhesive applied to a first surface thereof in a pattern, a second network of fibers comprising individual fibers having an average length at least about 20% greater than fibers comprising said first network of fibers adhesively attached to said bonding layer and conforming with said pattern, a second bonding layer applied to a second surface of said first network of fibers, and a third network of fibers comprising individual fibers adhesively attached to said second bonding layer.

16. The absorbent sanitary paper product of claim 15 wherein said first network of fibers has a basis weight of less than about 75 g/m 2 .

17. The absorbent sanitary paper product of claim 16 wherein said first network of fibers has a basis weight ranging from between about 10 g/m 2 and about 75 g/m 2 .

18. The absorbent sanitary paper product of claim 15 wherein said first network of fibers has a density ranging from about 0.12 g/cm 3 to about 0.05 g/cm 3 measured at a pressure trap point (PTP) of 100 g/in 2 .

19. The absorbent sanitary paper product of claim 15 wherein said first network of fibers has a total dry tensile strength of less than 5000 gf/in.

20. The absorbent sanitary paper product of claim 19 wherein said first network of fibers has a total dry tensile strength of less than 3000 gf/in.

Assignees

• Procter & Gamble

Inventors

• Mcneil Kevin Benson
• Byrne Thomas Timothy
• Kien Kathryn Christian

Classifications

• D21H27/007 Primary

  relating to absorbency, e.g. amount or rate of water absorption, optionally in combination with other parameters relating to physical or mechanical properties · CPC title

• D21H27/005 Primary

  relating to physical or mechanical properties, e.g. tensile strength, stretch, softness · CPC title

• D21H27/002

  Tissue paper; Absorbent paper (D21H21/22, D21H27/02, D21H27/20 take precedence; toilet paper A47K10/00; absorbent pads for physiological fluids A61L15/16; making on paper-making machines D21F11/00) · CPC title

• B65D85/671

  wound in flat spiral form · CPC title

• D21H27/30

  Multi-ply (for surface covering D21H27/18; making on paper-making machines D21F9/00, D21F11/00) · CPC title