IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0823538
(2001-03-30)
|
발명자
/ 주소 |
- Thomas, Paul Eugene
- Marsh, Thomas Patrick
|
출원인 / 주소 |
- Tredegar Film Products Corporation
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
29 인용 특허 :
94 |
초록
▼
An absorbent article having a topsheet and an absorbent core material. The acquisition distribution layer is located between the topsheet and the absorbent core material. The acquisition distribution layer is made of a three dimensional apertured film that defines a large void volume space between t
An absorbent article having a topsheet and an absorbent core material. The acquisition distribution layer is located between the topsheet and the absorbent core material. The acquisition distribution layer is made of a three dimensional apertured film that defines a large void volume space between the acquisition distribution layer and the absorbent core material. The acquisition distribution layer provides high void volume for lateral spillage during repeated insult moments because the topsheet, which is in contact with the user, is held away from dispersing fluid that is unabsorbed by saturated core material. The void volume space provides a pathway for unabsorbed fluid to flow over the top plane of saturated core regions to unsaturated regions of the core material for absorption. The void volume space allows this migration of fluid to occur without the fluid coming into contact with the topsheet, thereby avoiding a feeling of wetness for a wearer.
대표청구항
▼
An absorbent article having a topsheet and an absorbent core material. The acquisition distribution layer is located between the topsheet and the absorbent core material. The acquisition distribution layer is made of a three dimensional apertured film that defines a large void volume space between t
An absorbent article having a topsheet and an absorbent core material. The acquisition distribution layer is located between the topsheet and the absorbent core material. The acquisition distribution layer is made of a three dimensional apertured film that defines a large void volume space between the acquisition distribution layer and the absorbent core material. The acquisition distribution layer provides high void volume for lateral spillage during repeated insult moments because the topsheet, which is in contact with the user, is held away from dispersing fluid that is unabsorbed by saturated core material. The void volume space provides a pathway for unabsorbed fluid to flow over the top plane of saturated core regions to unsaturated regions of the core material for absorption. The void volume space allows this migration of fluid to occur without the fluid coming into contact with the topsheet, thereby avoiding a feeling of wetness for a wearer. longitudinal centerline of the article and fitting within the boundary between the central portion and the outer portion of the unitary absorbent layer, can have exactly three sides that are blocked by the one or more slits, such that a line extending outward in the plane of the unitary absorbent layer normal to any blocked side will intercept one of the slits. 8. The absorbent article of claim 1, wherein one of the one or more slits comprises a first substantially longitudinal segment, a substantially transverse segment, and a second substantially longitudinal segment, the first and second substantially longitudinal segments being spaced apart about the longitudinal centerline of the absorbent article, the slit defining a majority of the boundary between the outer portion and the central portion of the unitary absorbent layer. 9. The absorbent article of claim 1, wherein the central portion has a substantially rectangular shape and one slit circumscribes two or more sides of the rectangular central portion. 10. The absorbent article of claim 1, wherein the central portion has a substantially triangular shape and one slit circumscribes two or more sides of the triangular central portion. 11. The absorbent article of claim 1, wherein the central portion has two opposing sides and the opposing sides are separated by one slit. 12. The absorbent article of claim 1, wherein the one or more slits form a shape selected from a "V" shape, a "U" shape, a "S" shape, a "H" shape, an upper portion of a bread loaf shape, three sides of a rectangle, an outer perimeter of a spiral, an upper portion of an hourglass, an upper portion of a half-rounded rectangle, and an ellipse truncated at one end. 13. The absorbent article of claim 1, wherein the one or more slits circumscribe all but a substantially linear hinge zone of the central portion of the unitary absorbent layer such that a majority of the central portion of the unitary absorbent layer can be lifted away from the outer portion of the unitary absorbent layer. 14. The absorbent article of claim 1, wherein the wicking barrier passes beneath the central portion of the unitary absorbent layer. 15. The absorbent article of claim 1, further comprising a hinge zone joining the central portion to the outer portion. 16. The absorbent article of claim 1, further comprising a plurality of hinge zones joining the central portion to the outer portion. 17. The absorbent article of claim 1, wherein the wicking barrier spans a horizontal distance in contact with the body-side surface of the absorbent core. 18. The absorbent article of claim 1, wherein the wicking barrier comprises a polymeric web. 19. The absorbent article of claim 1, wherein the wicking barrier comprises a single section of a polymeric film spanning a vertical distance in one or more the slits of at least about 2 mm and a horizontal distance above the body-side surface of the outer portion of the unitary layer of at least about 2 mm. 20. The absorbent article of claim 1 wherein the wicking barrier comprises a hydrophobic impregnate. 21. The absorbent article of claim 1, wherein the boundary has a joining zone between the central portion and the outer portion of the unitary absorbent layer, wherein the joining zone is treated with the hydrophobic impregnate. 22. The absorbent article of claim 1, wherein the wicking barrier comprises a hot melt impregnated into the unitary absorbent layer. 23. The absorbent article of claim 1, wherein the wicking barrier is unitary. 24. The absorbent article of claim 1, wherein the wicking barrier is non-unitary. 25. The absorbent article of claim 1, wherein the central portion has a width equal to about 80% or less of the width of the unitary absorbent layer in the target zone. 26. The absorbent article of claim 1, further comprising a second absorbent layer disposed above the unitary absorbent layer. 27. The absorbent article of claim 26, wherein the second absorbent layer has a body-side surface an
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