Surgery – Respiratory method or device – Ozone or ion generation
Patent
1975-02-18
1976-05-11
Medbery, Aldrich F.
Surgery
Respiratory method or device
Ozone or ion generation
128287, 128284, A61F 1316
Patent
active
039555771
ABSTRACT:
A disposable diaper combining improved softness and sufficient strength to resist in use tearing and shredding in a single structure, thereby producing better compliance and fit when the structure is applied to the wearer, and hence improved comfort as well as better containment of waste fluids deposited thereon. In a preferred embodiment, a disposable diaper of the present invention employs an air laid absorbent cellulosic core reinforced by the application of a hydrophobic resin at relatively low levels of solids addition to one side thereof with subsequent drying, curing and calendering to the desired overall density. With sufficient strength built into the resin treated surface of the absorbent core structure, the unreinforced surface of the absorbent core can be adhered directly to a soft, waterproof backsheet, thereby producing a unique softness, texture and hand. In addition to improved strength and softness, a resin-stabilized absorbent core of the present invention exhibits improved surface dryness due to favorable density and capillary gradients which provide improved liquid penetration from the resin treated surface of the core to the non-resin treated portions of the core. By combining the resin-stabilized absorbent core with a fast strike-through topsheet in a disposable diaper structure, the gasket-like waterproof side flaps normally required to prevent liquid run-off can be eliminated.
REFERENCES:
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patent: 3339550 (1967-09-01), Van Haaften
patent: 3444859 (1969-05-01), Kalwaites
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patent: 3612055 (1971-10-01), Mesek
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patent: 3721242 (1973-03-01), Krusko
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Gellert Dale A.
Harden Kendall L.
Noel John R.
Braun Fredrick H.
Gorman John V.
Linman E. Kelly
Medbery Aldrich F.
The Procter & Gamble & Company
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