Soft and strong fibrous structures and methods for making same
Soft and strong fibrous structures and more particularly soft and strong fibrous structures that contains less softwood fibers than known fibrous structures and methods for making such soft and strong fibrous structures are provided.
1. A layered fibrous structure exhibiting a basis weight of from about 10 to about 120 g/m 2 , wherein the fibrous structure comprises greater than 50% by weight on a dry fiber basis of pulp fibers, wherein greater than 0% but less than 20% by weight on a dry fiber basis of the pulp fibers are softwood fibers, wherein the pulp fibers comprise trichome fibers, wherein one or more of the trichome fibers are derived from a plant in the Stachys genus, and wherein one or more of the trichome fibers are derived from a plant Stachys byzantina.
2. The fibrous structure according to claim 1 wherein the fibrous structure comprises greater than 75% by weight on a dry fiber basis of pulp fibers.
3. The fibrous structure according to claim 1 wherein the fibrous structure comprises greater than 90% by weight on a dry fiber basis of pulp fibers.
4. The fibrous structure according to claim 1 wherein the fibrous structure comprises 100% or less by weight on a dry fiber basis of pulp fibers.
5. The fibrous structure according to claim 1 wherein the pulp fibers comprise tropical hardwood fibers selected from the group consisting of: eucalyptus fibers, acacia fibers, and mixtures thereof.
6. The fibrous structure according to claim 1 wherein the pulp fibers comprise hardwood fibers, and wherein the fibrous structure comprises less than 50% by weight on a dry fiber basis of hardwood fibers.
7. The fibrous structure according to claim 1 wherein the fibrous structure is void of hardwood fibers.
8. The fibrous structure according to claim 1 wherein the softwood fibers comprise northern softwood kraft fibers.
9. The fibrous structure according to claim 1 wherein the softwood fibers comprises southern softwood kraft fibers.
10. The fibrous structure according to claim 1 wherein the fibrous structure further comprises one or more synthetic fibers.
11. The fibrous structure according to claim 1 wherein an exterior layer of the fibrous structure comprises one or more of the trichome fibers.
12. The fibrous structure according to claim 1 wherein the fibrous structure comprises a softening agent.
13. The fibrous structure according to claim 12 wherein the softening agent is selected from the group consisting of: quaternary ammonium compounds, silicones, and mixtures thereof.
14. The fibrous structure according to claim 1 wherein the fibrous structure exhibits a basis weight of greater than 21 g/m 2 .
15. A layered fibrous structure exhibiting a basis weight of from about 10 to about 120 g/m 2 , wherein the fibrous structure comprises greater than 50% by weight on a dry fiber basis of pulp fibers comprising trichome fibers, wherein greater than 0% but less than 20% by weight on a dry fiber basis of the pulp fibers are softwood fibers, and wherein the fibrous structure is void of hardwood fibers.
16. The fibrous structure according to claim 15 wherein the fibrous structure comprises greater than 75% by weight on a dry fiber basis of pulp fibers.
17. The fibrous structure according to claim 15 wherein the weight ratio of softwood fibers to non-softwood fibers within the fibrous structure is less than 1:4.
18. A layered fibrous structure exhibiting a basis weight of from about 10 to about 120 g/m 2 , wherein the fibrous structure comprises greater than 50% by weight on a dry fiber basis of pulp fibers comprising trichome fibers, wherein greater than 0% but less than 20% by weight on a dry fiber basis of the pulp fibers are softwood fibers, and wherein the weight ratio of softwood fibers to non-softwood fibers within the fibrous structure is less than 1:4.
19. The fibrous structure according to claim 18 wherein the fibrous structure comprises greater than 75% by weight on a dry fiber basis of pulp fibers.
20. The fibrous structure according to claim 18 wherein the fibrous structure comprises greater than 90% by weight on a dry fiber basis of pulp fibers.
21. The fibrous structure according to claim 18 wherein the fibrous structure comprises 100% or less by weight on a dry fiber basis of pulp fibers.
22. The fibrous structure according to claim 18 wherein one or more of the trichome fibers are derived from a plant in the Stachys genus.
23. The fibrous structure according to claim 22 wherein one or more of the trichome fibers are derived from a plant Stachys byzantina.
24. The fibrous structure according to claim 18 comprising tropical hardwood fibers selected from the group consisting of: eucalyptus fibers, acacia fibers, and mixtures thereof.
25. The fibrous structure according to claim 18 wherein the pulp fibers comprise hardwood fibers, and wherein the fibrous structure comprises less than 50% by weight on a dry fiber basis of hardwood fibers.
26. The fibrous structure according to claim 18 wherein the fibrous structure is void of hardwood fibers.
27. The fibrous structure according to claim 18 wherein the softwood fibers comprise northern softwood kraft fibers.
28. The fibrous structure according to claim 18 wherein the softwood fibers comprise southern softwood kraft fibers.
29. The fibrous structure according to claim 18 wherein the fibrous structure comprises one or more synthetic fibers.
30. The fibrous structure according to claim 18 wherein the pulp fibers in an exterior layer of the fibrous structure comprise one or more trichome fibers.
31. The fibrous structure according to claim 18 wherein the fibrous structure comprises a softening agent.
32. The fibrous structure according to claim 31 wherein the softening agent is selected from the group consisting of: quaternary ammonium compounds, silicones, and mixtures thereof.
33. The fibrous structure according to claim 18 wherein the fibrous structure exhibits a basis weight of greater than 21 g/m 2 .