Surgery – Means and methods for collecting body fluids or waste material – Absorbent pad for external or internal application and...
Patent
1996-04-11
2000-09-05
Polutta, Mark O.
Surgery
Means and methods for collecting body fluids or waste material
Absorbent pad for external or internal application and...
604378, 60438516, 428116, 428131, A61F 1315, A61F 1320
Patent
active
061145955
ABSTRACT:
The present invention pertains, in a preferred embodiment, to a stretchable, extensible, fluid-pervious composite web comprising an apertured, three-dimensional, macroscopically-expanded formed film layer and a fibrous layer, preferably a nonwoven, bonded to one side of the formed film layer. The composite web is microcreped in at least one direction, such that the composite web exhibits extensibility, and preferably also retractability, in that direction. The composite web exhibits fine scale nesting of the formed film layer and the nonwoven layer in the microfolds, providing intimate contact between the layers for enhanced fluid transport properties while the three-dimensionality of the formed film provides a stand-off between the layers. The composite webs of the present invention are particularly suited for use as a topsheet on an absorbent article, in order to provide for enhanced stretchability and extensibility to accommodate a wide range of in-use conditions and to enable the absorbent article to better conform to the wearer's body to improve wearing comfort via enhanced flexibility. The microcreped surface also provides a soft, pleasing visual and tactile impression to the wearer. The present invention further relates to a method of making a stretchable, extensible, fluid-pervious composite web comprising the steps of: (a) providing an apertured, three-dimensional, macroscopically-expanded formed film layer; (b) providing a fibrous layer; (c) bonding the fibrous layer to one side of the formed film layer to form a composite web; (d) microcreping the composite web in at least one direction such that the composite web is contracted that direction and such that the formed film layer remains substantially three-dimensional and macroscopically-expanded.
REFERENCES:
patent: H1377 (1994-11-01), Perry
patent: 3095878 (1963-07-01), Bassett
patent: 3137746 (1964-06-01), Seymour et al.
patent: 3260778 (1966-07-01), Walton
patent: 3426405 (1969-02-01), Walton
patent: 3597299 (1971-08-01), Thomas et al.
patent: 3828784 (1974-08-01), Zoephel
patent: 3925127 (1975-12-01), Yoshioka
patent: 3949128 (1976-04-01), Ostermeier
patent: 4090385 (1978-05-01), Packard
patent: 4100017 (1978-07-01), Flautt, Jr.
patent: 4127637 (1978-11-01), Pietreniak et al.
patent: 4142278 (1979-03-01), Walton et al.
patent: 4176667 (1979-12-01), Herring
patent: 4191609 (1980-03-01), Trokhan
patent: 4208459 (1980-06-01), Becker et al.
patent: 4276339 (1981-06-01), Stoveken
patent: 4342314 (1982-08-01), Radel et al.
patent: 4421812 (1983-12-01), Plant
patent: 4422892 (1983-12-01), Plant
patent: 4435458 (1984-03-01), Hill
patent: 4463045 (1984-07-01), Ahr et al.
patent: 4487796 (1984-12-01), Lloyd et al.
patent: 4555811 (1985-12-01), Shimalla
patent: 4574021 (1986-03-01), Endres et al.
patent: 4610743 (1986-09-01), Salmeen et al.
patent: 4614679 (1986-09-01), Farrington, Jr. et al.
patent: 4634621 (1987-01-01), Manning et al.
patent: 4704113 (1987-11-01), Schoots
patent: 4842596 (1989-06-01), Kielpikowski et al.
patent: 5066348 (1991-11-01), Manning
patent: 5117540 (1992-06-01), Walton et al.
patent: 5145727 (1992-09-01), Potts et al.
patent: 5149332 (1992-09-01), Walton et al.
patent: 5342334 (1994-08-01), Thompson et al.
patent: 5352217 (1994-10-01), Curro
patent: 5366782 (1994-11-01), Curro et al.
patent: 5591149 (1997-01-01), Cree
patent: 5613962 (1997-03-01), Kenmochi et al.
patent: 5658639 (1997-08-01), Curro et al.
patent: 5762643 (1998-06-01), Ray et al.
Manring Beverly J.
Moore Megan R.
Bullock Roddy M.
Polutta Mark O.
The Procter & Gamble & Company
Weirich David M.
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