Claims
- 1. A fibrous web comprising:(a) a lower stratum comprising thermoplastic fibers and matrix fibers which are cellulosic fibers or a blend of cellulosic fibers and synthetic fibers; and (b) an upper stratum comprising thermoplastic fibers and matrix fibers which are cellulosic fibers or a blend of cellulosic fibers and synthetic fibers; wherein a plurality of functional particle areas comprised of superabsorbent polymers are positioned between said upper stratum and said lower stratum so as to contact each of said upper and lower strata, each of said functional particle areas being separated from other functional particle areas by a seal area comprising a seal formed between said upper and said lower strata.
- 2. The fibrous web of claim 1 wherein said seal area is substantially free of functional parties.
- 3. The fibrous web of claim 1 wherein said thermoplastic fibers are bicomponent fibers.
- 4. The fibrous web of claim 1 wherein said functional particle area comprises superabsorbent polymers.
- 5. The fibrous web of claim 4 wherein said functional particle area further comprises zeolites.
- 6. The fibrous web of claim 1, further comprising a binder on the entire surface of the fibrous web.
- 7. The fibrous web of claim 1 wherein said seal is formed by the application of pressure and/or heat.
- 8. The fibrous web of claim 1 wherein a binder is applied onto said seal area, said binder having a binder solids concentration of from 3 to 25% by weight, based on the total weight of the binder.
- 9. The fibrous web of claim 8 wherein said binder is applied onto said seal area is a latex binder.
- 10. The fibrous web of claim 1 having a powder spillage value of not more than 1.0 mg.
- 11. The fibrous web of claim 1 having a peak seal strength of greater than 0.6 N.
- 12. The fibrous web of claim 1 having a stiffness in the seal area of less than 150 mg.
- 13. The fibrous web of claim 1 having a stiffness in the non-seal area of less than 200mg.
- 14. An absorbent article comprising:(a) a lower stratum comprising thermoplastic fibers and cellulosic fibers or a blend of cellulosic fibers and synthetic fibers; (b) an upper stratum comprising thermoplastic fibers and cellulosic fibers or a blend of cellulosic fibers and synthetic fibers; (c) a functional particle area comprised of superabsorbent polymers positioned between said upper stratum and said lower stratum so as to contact each of said upper and lower strata; and (d) a seal area comprising a seal formed between said upper and said lower strata, said seal area being substantially free of functional particles.
- 15. The article of claim 14 said article comprising two said seal areas, wherein said seal areas are disposed on opposing edges of said article.
- 16. The article of claim 14 wherein said thermoplastic fibers are bicomponent fibers.
- 17. The article of claim 14 wherein said functional particle area further comprises zeolites.
- 18. The article of claim 14 wherein said seal is formed by the application of pressure and/or heat.
- 19. The article claim 14, said article further comprising a binder on the entire surface.
- 20. The article of claim 19 wherein a binder is applied onto said seal area, said binder having a binder solids concentration of from 3 to 25% by weight, based on 100% total weight of the binder.
- 21. The article of claim 20 wherein said binder applied onto said seal area is a latex binder.
- 22. The article of claim 14 having a powder spillage value of not more than 1.0 mg.
- 23. The article of claim 14 having a peak seal strength of greater than0.6 N.
- 24. The article of claim 19 wherein said binder is present in the amount of less than 5% by weight of said article.
- 25. The article of claim 14 having a stiffness in the seal area of less than 150 mg.
- 26. The article of claim having a stiffness in the non-seal area of less than 200 mg.
- 27. An absorbent article comprising:(a) a fluid pervious topsheet; (b) a second stratum in fluid contact with said fluid pervious top sheet, said stratum comprising thermoplastic fibers and cellulosic fibers or a blend of cellulosic fibers and synthetic fibers; (c) an upper stratum comprising thermoplastic fibers and cellulosic fibers or a blend of cellulosic fibers and synthetic fibers; (d) a functional particle area comprised of superabsorbent polymers positioned between said upper stratum and said lower stratum so as to contact each of said upper and lower strata; (e) a seal area comprising a seal formed between said upper and said lower strata, said seal area being substantially free of functional particles; and (f) a fluid impervious backsheet.
- 28. The absorbent article of claim 27 wherein said article is selected from the group of a diaper, an adult incontinence product and s feminine hygiene product.
Parent Case Info
This application claims priority under 35 U.S.C. § 119, based on U.S. provisional patent application serial No. 60/135,912, filed May 25, 1999, and U.S. provisional patent application serial No. 60/166,489, filed Nov. 19, 1999, the entire disclosures of which are hereby incorporated by reference.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
5843267 |
Cashaw et al. |
Dec 1998 |
A |
5938650 |
Baer et al. |
Aug 1999 |
A |
6162959 |
O'Connor |
Dec 2000 |
A |
Provisional Applications (2)
|
Number |
Date |
Country |
|
60/135912 |
May 1999 |
US |
|
60/166489 |
Nov 1999 |
US |