Fibrous structures

Patent metadata

Field	Value
Publication number	US-9458574-B2
Application number	US-201213370476-A
Country	US
Kind code	B2
Filing date	Feb 10, 2012
Priority date	Feb 10, 2012
Publication date	Oct 4, 2016
Grant date	Oct 4, 2016

Abstract

A fibrous structure includes first, second, and third relatively high density wet-formed discrete elements disposed in a repeating concentric pattern. Each relatively high density wet-formed discrete element is at least partially defined by a continuous relatively low density wet-formed network that extends about an area of the fibrous structure. The first, second, and third relatively high density wet-formed discrete elements are distinguishable one from another by their respective area dimensions.

First claim

What is claimed is:

1. A fibrous structure, comprising: a plurality of relatively high density wet-formed discrete elements each at least partially defined by a substantially continuous relatively low density wet-formed network that extends about an area of the fibrous structure, wherein the plurality of relatively high density discrete elements are disposed in a repeating concentric pattern defined from the inside of said pattern to the outside of said pattern by a first central relatively high density discrete element having a first area dimension, a second plurality of relatively high density discrete elements surrounding said first central relatively high density discrete element, each relatively high density discrete element of said second plurality of relatively high density discrete elements having a second area dimension, and a third plurality of relatively high density discrete elements surrounding said second plurality of relatively high density discrete elements, each relatively high density discrete element of said third plurality of relatively high density discrete elements having a third area dimension, and wherein said third area dimension is greater than said second area dimension, and said second area dimension is greater than said first area dimension.

2. The fibrous structure of claim 1 , wherein each of said relatively high density discrete elements has a major axis, CDmax, and a minor axis, MDmax, and wherein the length of CDmax is greater than or equal to the length of MDmax.

3. The fibrous structure of claim 1 , wherein each of said relatively high density discrete elements has a major axis, CDmax, and a minor axis, MDmax, and wherein a ratio of the length of CDmax to the length of MDmax is in the range of about 1 to 5.

4. The fibrous structure of claim 1 , wherein each said repeating concentric pattern comprises from about 5% to about 30% by area said first plurality of relatively high density discrete elements, from about 30% to about 60% by area said second plurality of relatively high density discrete elements, and from about 30% to about 50% by area said third plurality of relatively high density discrete elements.

5. The fibrous structure of claim 1 , wherein a major axis, CDmax, of each of said relatively high density discrete elements extends in a cross machine direction.

6. The fibrous structure of claim 1 , wherein each element of said second plurality of relatively high density discrete elements is separated from adjacent relatively high density discrete elements in said second plurality of relatively high density discrete elements by a second distance and each element of said third plurality of relatively high density discrete elements is separated from adjacent relatively high density discrete elements in said third plurality of relatively high density discrete elements by a third distance which is greater than said second distance.

7. The fibrous structure of claim 1 , wherein the fibrous structure is embossed.

8. The fibrous structure of claim 1 , wherein the fibrous structure is uncreped.

9. A fibrous structure, comprising: a plurality of relatively high density wet-formed discrete elements each at least partially defined by a substantially continuous relatively low density network that extends about an area of the fibrous structure, wherein the plurality of relatively high density wet-formed discrete elements are disposed in a repeating concentric pattern defined from the inside of said pattern to the outside of said pattern by a first set of central relatively high density wet-formed discrete elements each having first area dimension, a second plurality of relatively high density wet-formed discrete elements surrounding said first set of relatively high density wet-formed discrete elements, each element of said second plurality of relatively high density wet-formed discrete elements having a second area dimension, and a third plurality of relatively high density wet-formed discrete elements surrounding said second plurality of relatively high density wet-formed discrete elements, each element of said third plurality of relatively high density wet-formed discrete elements having a third area dimension, and wherein said third area dimension is greater than said second area dimension, and said second area dimension is greater than said first area dimension.

10. The fibrous structure of claim 9 , wherein each of said discrete elements has a major axis, CDmax, and a minor axis, MDmax, and wherein the length of CDmax is greater than or equal to the length of MDmax.

11. The fibrous structure of claim 9 , wherein each of said discrete elements has a major axis, CDmax, and a minor axis, MDmax, and wherein a ratio of the length of CDmax to the length of MDmax is in the range of 1 to 5.

12. The fibrous structure of claim 9 , wherein each said repeating concentric pattern comprises from about 5% to about 30% by area said first plurality of relatively high density discrete elements, from about 30% to about 60% by area said second plurality of relatively high density discrete elements, and from about 30% to about 50% by area said third plurality of relatively high density discrete elements.

13. The fibrous structure of claim 9 , wherein each element of said second plurality of elements is separated from adjacent elements in said second plurality of elements by a second distance and each element of said third plurality of elements is separated from adjacent elements in said third plurality of elements by a third distance which is greater than said second distance.

14. The fibrous structure of claim 9 , wherein the fibrous structure is embossed.

15. The fibrous structure of claim 9 , wherein the fibrous structure is uncreped.

16. A fibrous structure which has a ratio of in-plane force to gather as measured by the GM-Flexural Bending Test to basis weight of greater than about 0.33 cm/ lbs/3000 ft 2 and a ratio of Z-direction compression resistance as measured by the 95 g Load Wet Caliper test to basis weight of greater than about 0.96 mils/ lbs/3000 ft 2 .

17. The fibrous structure of claim 16 , wherein said fibrous structure comprises an absorbent capacity of greater than about 0.621 g/sq in.

18. The fibrous structure of claim 16 , where said fibrous structure is embossed.

Assignees

• Myangiro Dinah Achola
• Barkey Douglas Jay
• Trokhan Paul Dennis
• Procter & Gamble

Inventors

• Myangiro Dinah Achola
• Barkey Douglas Jay
• Trokhan Paul Dennis

Classifications

• D21F11/14

  Making cellulose wadding, filter or blotting paper · CPC title

• D21F11/006

  Making patterned paper · CPC title

• Y10T428/24628

  Nonplanar uniform thickness material · CPC title

• D21H27/02 Primary

  Patterned paper (patterned coatings D21H19/66; embossing B31F1/07; prepared on the paper-making machines D21F11/00) · CPC title

• D21F7/086

  Substantially impermeable for transferring fibrous webs · CPC title