Claims
- 1. A disposable absorbent article having a frontsheet and a backsheet, comprising:
(A) a nonwoven defining an exposed outer surface of at least one of a frontsheet and a backsheet, said nonwoven containing a plurality of bonded fibers and a plurality of interstices defined thereby; and (B) a minihook fastener element forming a plurality of pins defining an exposed outer surface thereof;
said pins of said fastener element and said fibers and said interstices of said nonwoven being configured and dimensioned to provide, when said exposed outer surfaces of said fastener element and said nonwoven are mutually engaged, a peel strength of at least 60 grams per square inch and a shear strength of at least 1300 grams per square inch.
- 2. The article of claim 1 comprising a diaper having a back portion, a front portion and a crotch portion connecting said back and front portions, one of said back and front portions including a laterally spaced pair of said fastener elements and the other of said back and front portions including said nonwoven.
- 3. The article of claim 1 comprising a T-shaped brief having a back portion, a front portion, a crotch portion connecting said back and front portions, and a pair of wings extending laterally from respective lateral edges of said back portion for partially overlapping connection about the front of a waist of a wearer, one of said wings having at least one of said fastener elements, and said front portion having at least a first laterally spaced pair of said fastener elements and both of said wings having said nonwoven.
- 4. The article of claim 1 comprising a pull-up having a back portion, a front portion and a crotch portion connecting said back and front portions, said back and front portions being adapted to be secured together in an emergency situation exclusively by at least one of said fastener elements and said nonwoven.
- 5. The article of claim 3 wherein said front portion includes a single auxiliary fastener element between said first pair of fastener elements of said front portion.
- 6. The article of claim 3 wherein said front portion includes a second laterally spaced pair of said fastener elements, said second pair being disposed between said first pair.
- 7. The article of claim 3 wherein said first laterally spaced pair of fastener elements is substantially spaced inwardly from the lateral edges of said front portion.
- 8. The article of claim 3 wherein said lateral edges of said front portion adjacent a top thereof are secured in a turned under orientation to the frontsheet of said front portion, said first laterally spaced pair of fastener elements being on the backsheet of said turned under lateral edges.
- 9. The article of claim 3 wherein said first laterally spaced pair of said fastener elements is disposed on the frontsheet of said front portion, and said front portion is disposed over at least one of said wings.
- 10. The article of claim 3 wherein said first laterally spaced pair of said fastener elements is disposed on the backsheet of said front portion, and said front portion is partially disposed under at least one of said wings.
- 11. The article of claim 3 wherein the partially overlapped one of said wings has an auxiliary fastener element on the backsheet thereof substantially adjacent the free end thereof, thereby to enable fastening of said free end to the body-facing surface of the overlapping one of said wings.
- 12. The article of claim 3 wherein the partially overlapped one of said wings has an auxiliary fastener element on the backsheet thereof on an intermediate portion substantially spaced from the free end thereof, thereby to enable fastening of said intermediate portion to the body-facing surface of the overlapping one of said wings.
- 13. The article of claim 3 wherein said wings are at least partially elastic and include said nonwoven as an outer surface thereof.
- 14. The article of claim 1 wherein said nonwoven is a spunbond.
- 15. The article of claim 1 wherein said nonwoven is a backsheet.
- 16. The article of claim 1 wherein said nonwoven is 13-50 gsm, and said minihook fastener element has a density of at least 1600 PPSI and a pin-bearing surface area of at least 0.5 inch2, said pins being substantially circular and spaced less than about 300 microns apart at an exposed outer surface thereof.
- 17. The article of claim 1 wherein said nonwoven is 13-50 gsm, said fibers at the exposed outer surface thereof have an average size of about 1.3 to 3.0 denier, and the average size of said interstices is at least 644 microns, and each said pin has a diameter
(i) at the base thereof of at least 300 microns, and (ii) at the free end thereof of at least 375 microns.
- 18. A disposable absorbent article having a frontsheet and a backsheet, comprising:
(A) a nonwoven defining an exposed outer surface of at least one of a frontsheet and a backsheet, said nonwoven containing a plurality of bonded fibers and a plurality of interstices defined thereby; and (B) a minihook fastener element having
(i) an average density of at least 1600 pins per square inch (PPSI) defining an exposed outer surface thereof, said pins being substantially circular and on average spaced less than about 300 microns apart at an exposed outer surface thereof, and (ii) a pin-bearing surface area of at least 0.5 inch2.
- 19. The article of claim 18 wherein said pins are on average spaced less than about 275 microns apart at an exposed outer surface thereof.
- 20. The article of claim 18 wherein said nonwoven has a basis weight of 13-50 gsm.
- 21. The article of claim 18 comprising a diaper having a back portion, a front portion and a crotch portion connecting said back and front portions, one of said back and front portions including a laterally spaced pair of said fastener elements and the other of said back and front portions including said nonwoven.
- 22. The article of claim 18 comprising a T-shaped brief having a back portion, a front portion, a crotch portion connecting said back and front portions, and a pair of wings extending laterally from respective lateral edges of said back portion for partially overlapping connection about the front of a waist of a wearer, one of said wings having at least one of said fastener elements, and said front portion having at least a first laterally spaced pair of said fastener elements and both of said wings having said nonwoven.
- 23. The article of claim 18 comprising a pull-up having a back portion, a front portion and a crotch portion connecting said back and front portions, said back and front portions being adapted to be secured together in an emergency situation exclusively by at least one of said fastener elements and said nonwoven.
- 24. The article of claim 22 wherein said front portion includes a single auxiliary fastener element between said first pair of fastener elements of said front portion.
- 25. The article of claim 22 wherein said front portion includes a second laterally spaced pair of said fastener elements, said second pair being disposed between said first pair.
- 26. The article of claim 22 wherein said first laterally spaced pair of fastener elements is substantially spaced inwardly from the lateral edges of said front portion.
- 27. The article of claim 22 wherein said lateral edges of said front portion adjacent a top thereof are secured in a turned under orientation to the frontsheet of said front portion, said first laterally spaced pair of fastener elements being on the backsheet of said turned under lateral edges.
- 28. The article of claim 22 wherein said first laterally spaced pair of said fastener elements is disposed on the frontsheet of said front portion, and said front portion is disposed over at least one of said wings.
- 29. The article of claim 22 wherein said first laterally spaced pair of said fastener elements is disposed on the backsheet of said front portion, and said front portion is partially disposed under at least one of said wings.
- 30. The article of claim 22 wherein the partially overlapped one of said wings has an auxiliary fastener element on the backsheet thereof substantially adjacent the free end thereof, thereby to enable fastening of said free end to the body-facing surface of the overlapping one of said wings.
- 31. The article of claim 22 wherein the partially overlapped one of said wings has an auxiliary fastener element on the backsheet thereof on an intermediate portion substantially spaced from the free end thereof, thereby to enable fastening of said intermediate portion to the body-facing surface of the overlapping one of said wings.
- 32. The article of claim 22 wherein said wings are at least partially elastic and include said nonwoven as an outer surface thereof.
- 33. The article of claim 22 wherein said nonwoven is a spunbond.
- 34. The article of claim 22 wherein said nonwoven is the backsheet.
- 35. The article of claim 18 wherein said nonwoven is 13-50 gsm, said fibers at the exposed outer surface thereof have an average size of about 1.3 to 3 denier, and the average size of said interstices is at least 644 microns, and each said pin has a diameter
(i) at the base thereof of at least 300 microns, and (ii) at the free end thereof of at least 375 microns.
- 36. The article of claim 18 wherein said pins of said fastener element and said fibers and said interstices of said nonwoven are configured and dimensioned to provide, when said exposed surfaces of said fastener element and said nonwoven are mutually engaged, a peel strength of at least 60 grams per square inch and a shear strength of at least 1300 grams per square inch.
- 37. A disposable absorbent article having a frontsheet and a backsheet, comprising:
(A) a nonwoven defining an exposed outer surface of at least one of a frontsheet and a backsheet, said nonwoven containing a plurality of bonded fibers and a plurality of interstices defined thereby; said nonwoven being a 13-50 gsm spunbond, said fibers having an average size of about 1.3 to 3.0 denier, and the average size of said interstices being at least 644 microns; and (B) a minihook fastener element forming a plurality of pins defining an exposed outer surface thereof, said pins having an average diameter
(i) at the base thereof of at least 300 microns, and (ii) at the free end thereof of at least 375 microns; said pins of said fastener element entering into said interstices of said nonwoven when said exposed outer surfaces of said fastener element and said nonwoven are mutually engaged.
- 38. The article of claim 37 wherein said fibers are differentially bonded.
- 39. The article of claim 37 wherein said fibers are differentially point bonded.
- 40. The article of claim 37 comprising a diaper having a back portion, a front portion and a crotch portion connecting said back and front portions, one of said back and front portions including a laterally spaced pair of said fastener elements and the other of said back and front portions including said nonwoven.
- 41. The article of claim 37 comprising a T-shaped brief having a back portion, a front portion, a crotch portion connecting said back and front portions, and a pair of wings extending laterally from respective lateral edges of said back portion for partially overlapping connection about the front of a waist of a wearer, one of said wings having at least one of said fastener elements, and said front portion having at least a first laterally spaced pair of said fastener elements and both of said wings having said nonwoven.
- 42. The article of claim 39 comprising a pull-up having a back portion, a front portion and a crotch portion connecting said back and front portions, said back and front portions being adapted to be secured together in an emergency situation exclusively by at least one of said fastener elements and said nonwoven.
- 43. The article of claim 41 wherein said front portion includes a single auxiliary fastener element between said first pair of fastener elements of said front portion.
- 44. The article of claim 41 wherein said front portion includes a second laterally spaced pair of said fastener elements, said second pair being disposed between said first pair.
- 45. The article of claim 41 wherein said first laterally spaced pair of fastener elements is substantially spaced inwardly from the lateral edges of said front portion.
- 46. The article of claim 41 wherein said lateral edges of said front portion adjacent a top thereof are secured in a turned under orientation to the frontsheet of said front portion, said first laterally spaced pair of fastener elements being on the backsheet of said turned under lateral edges.
- 47. The article of claim 41 wherein said first laterally spaced pair of said fastener elements is disposed on the frontsheet of said front portion, and said front portion is disposed over at least one of said wings.
- 48. The article of claim 41 wherein said first laterally spaced pair of said fastener elements is disposed on the backsheet of said front portion, and said front portion is partially disposed under at least one of said wings.
- 49. The article of claim 41 wherein the partially overlapped one of said wings has an auxiliary fastener element on the backsheet thereof substantially adjacent the free end thereof, thereby to enable fastening of said free end to the body-facing surface of the overlapping one of said wings.
- 50. The article of claim 41 wherein the partially overlapped one of said wings has an auxiliary fastener element on the backsheet thereof on an intermediate portion substantially spaced from the free end thereof, thereby to enable fastening of said intermediate portion to the body-facing surface of the overlapping one of said wings.
- 51. The article of claim 41 wherein said wings are at least partially elastic and include said nonwoven as an outer surface thereof.
- 52. The article of claim 37 wherein said nonwoven is a spunbond.
- 53. The article of claim 37 wherein said nonwoven is the backsheet.
- 54. The article of claim 37 wherein said nonwoven is 13-50 gsm, and said minihook fastener element has a density of at least 1600 PPSI and a pin-bearing surface area of at least 0.5 inch2, said pins being substantially circular and spaced less than about 300 microns apart at an exposed outer surface thereof.
- 55. The article of claim 37 wherein said pins of said fastener element and said fibers and said interstices of said nonwoven being configured and dimensioned to provide, when said exposed surfaces of said fastener element and said nonwoven are mutually engaged, a peel strength of at least 60 grams per square inch and a shear strength of at least 1300 grams per square inch.
- 56. A disposable absorbent article having a frontsheet and a backsheet, comprising:
(A) a nonwoven defining an exposed outer surface of at least one of a frontsheet and a backsheet, said nonwoven containing a plurality of bonded fibers and a plurality of interstices defined thereby; said nonwoven being a 13-50 gsm spunbond, said fibers having an average size of about 1.3 to 3.0 denier, and the average size of said interstices being at least 644 microns; and (B) a minihook fastener element having
(i) an average density of at least 1600 pins per square inch (PPSI) defining an exposed outer surface thereof, said pins being substantially circular and on average spaced less than about 300 microns apart at an exposed outer surface thereof, and (ii) a pin-bearing surface area of at least 0.5 inch2; said fastener element and said nonwoven, when the exposed outer surfaces thereof are mutually engaged, having a peel strength of at least 60 grams per square inch and a shear strength of at least 1300 grams per square inch.
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This is a continuation-in-part of U.S. application Ser. No. 10/134,346, filed Apr. 26, 2002, itself a continuation-in-part of U.S. application Ser. No. 09/797,335, filed Mar. 1, 2001, itself a continuation-in-part of U.S. application Ser. No. 09/544,092, filed Apr. 6, 2000, itself a continuation-in-part of U.S. application Ser. No. 09/376,282, filed Aug. 18, 1999.
Continuation in Parts (4)
|
Number |
Date |
Country |
Parent |
10134346 |
Apr 2002 |
US |
Child |
10431200 |
May 2003 |
US |
Parent |
09797335 |
Mar 2001 |
US |
Child |
10431200 |
May 2003 |
US |
Parent |
09544092 |
Apr 2000 |
US |
Child |
10431200 |
May 2003 |
US |
Parent |
09376282 |
Aug 1999 |
US |
Child |
10431200 |
May 2003 |
US |