Fibrous structures
Fibrous structures, and more particularly sanitary tissue products containing fibrous structures having a surface exhibiting a three-dimensional (3D) pattern such that the fibrous structure and/or sanitary tissue product exhibits novel properties compared to known fibrous structures and/or sanitary tissue products, and methods for making same are provided.
1. A fibrous structure comprising a surface comprising a three-dimensional surface pattern, wherein the three-dimensional surface pattern comprises one or more pillow regions and one or more non-pillow regions, wherein at least one of which is semi-continuous, wherein the surface exhibits a Total Pillow Perimeter value of at least 30 in/in 2 as measured according to the Total Pillow Perimeter Test Method such that the fibrous structure exhibits a Surface Void Volume value at 1.7 psi of at least 0.090 mm 3 /mm 2 as measured according to the Surface Void Volume Test Method.
2. The fibrous structure according to claim 1 wherein the fibrous structure exhibits a Surface Void Volume value at 1.7 psi of at least 0.092 mm 3 /mm 2 as measured according to the Surface Void Volume Test Method.
3. The fibrous structure according to claim 1 wherein the fibrous structure exhibits a Surface Void Volume value at 0.88 psi of at least 0.108 mm 3 /mm 2 as measured according to the Surface Void Volume Test Method.
4. The fibrous structure according to claim 1 wherein the fibrous structure comprises a plurality of fibrous elements.
5. The fibrous structure according to claim 4 wherein the plurality of fibrous elements comprise a plurality of fibers.
6. The fibrous structure according to claim 5 wherein at least one of the fibers comprises a pulp fiber.
7. The fibrous structure according to claim 6 wherein the pulp fiber comprises a wood pulp fiber.
8. The fibrous structure according to claim 6 wherein the pulp fiber comprises a non-wood pulp fiber.
9. The fibrous structure according to claim 1 wherein the surface further comprises a surface softening agent.
10. The fibrous structure according to claim 1 wherein the fibrous structure comprises a temporary wet strength agent.
11. The fibrous structure according to claim 1 wherein the one or more pillow regions comprises a semi-continuous pillow region.
12. The fibrous structure according to claim 1 wherein the one or more pillow regions comprises a discrete pillow region.
13. The fibrous structure according to claim 1 wherein the one or more pillow regions comprises one or more semi-continuous pillow regions and one or more discrete pillow regions.
14. The fibrous structure according to claim 13 wherein a ratio of Semi-Continuous Pillow Perimeter to Discrete Pillow Perimeter is less than 4:1.
15. The fibrous structure according to claim 13 wherein a ratio of Semi-Continuous Pillow Perimeter to Discrete Pillow Perimeter is greater than 1:4.
16. The fibrous structure according to claim 13 wherein the Semi-Continuous Pillow Perimeter is at least 2.00 as measured according to the Total Pillow Perimeter Test Method.
17. The fibrous structure according to claim 13 wherein the Discrete Pillow Perimeter is at least 5.00 as measured according to the Total Pillow Perimeter Test Method.
18. A multi-ply fibrous structure comprising at least one fibrous structure ply comprising the fibrous structure according to claim 1 and a second fibrous structure ply.
19. The multi-ply fibrous structure according to claim 18 wherein the multi-ply fibrous structure is toilet tissue.
20. A method for making a fibrous structure according to claim 1 , the method comprising the steps of:
a. providing a plurality of fibrous elements;
b. collecting the fibrous elements on a collection device to form a fibrous structure; and
c. imparting a three-dimensional surface pattern to a surface of the fibrous structure such that the fibrous structure comprises a three-dimensional surface pattern comprising one or more pillow regions and one or more non-pillow regions, wherein the surface of the fibrous structure exhibits a Total Pillow Perimeter of at least 30 in/in 2 as measured according to the Total Pillow Perimeter Test Method such that the fibrous structure exhibits a Surface Void Volume value at 1.7 psi of at least 0.090 mm 3 /mm 2 as measured according to the Surface Void Volume Test Method.