Compressed catamenial tampon with improved capabilities for...

Details Compressed catamenial tampon with improved capabilities for... Compressed catamenial tampon with improved capabilities for...

A - Human Necessities

61

F

2/114, 92/65, 28

A61F 13/20 (2006.01) A61L 15/28 (2006.01)

Patent

CA 1045801

ABSTRACT OF THE DISCLOSURE This invention is directed to a compressed catamenial tampon made up of a mass of absorbent fibers having intermixed therein a quantity of carboxymethyl- cellulose fibers containing free-acid carboxyl radicals and characterized by a high capacity for absorbing and retaining menstrual fluids. These carboxymethylcellulose fibers are modified by heat treatment to shorten the time it takes for such fibers to absorb a specified amount of fluid and thereby more effectively utilize their high capacity. The particular high capacity fibers are defined as carboxymethylcellulose fibers having a degree of substitution in the normally soluble range of about 0.4 to about 2.0 in which a part of the carboxyl groups are free-acid form with the remainder in salt form.

271536

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