Water dispersible nonwoven fabric
AssigneeJohnson & Johnson
InventorDeger C. Tunc
Life of this patent
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Abstract
A water dispersible nonwoven fabric comprising one or more layers of overlapping, intersecting fibers and from about 4 percent to about 35 percent by weight of a binder comprising an alkali salt of a sulfated cellulose ester, said nonwoven fabric having good tensile strength and abrasion resistance in the presence of body fluids such as urine, blood, and menstrual fluid. The nonwoven fabrics may be incorporated in body fluid absorbent products such as sanitary napkins, diapers, surgical dressings, tampons, nursing pads and the like.
Claims20
A water-dispersible nonwoven fabric comprising:
- a layer of overlapping, intersecting fibers, said fibers having a length not more than about 2 inches;
- and from about 4 to about 35 percent by weight of the fabric of an alkali salt of a sulfated cellulose ester resin binder distributed in said fabric, said resin binder having an average of from about 0.1 to about 0.45 sulfate groups per anhydroglucose unit.
A water-dispersible nonwoven fabric comprising:
- a layer of overlapping, intersecting textile fibers, said fibers being viscose rayon fibers from about 1/2 inch to about 11/2 inches in length and from about 4 percent to about 20 percent of sodium cellulose acetate sulfate distributed in said fabric, said sodium cellulose acetate sulfate having an average of from about 0.27 to about 0.40 sulfate groups per anhydroglucose unit.
An absorbent product for contacting body fluids comprising:
- an absorbent core and a fluid-pervious, water-dispersible nonwoven fabric covering at least a portion of said absorbent core;
- said nonwoven fabric comprising a layer of overlapping, intersecting fibers, said fibers having a length not more than about 2 inches;
- and, distributed in said fabric, from about 4 to about 20 percent by weight of the fabric of an alkali cellulose ester sulfate resin binder, said resin binder having an average of from about 0.27 to about 0.40 sulfate groups per anhydroglucose unit.
Dependencies are inferred from the claim text.