Process for making a high pulp content nonwoven composite fabric
AssigneeKimberly-Clark Corporation
InventorsCherie H. Everhart, Daniel O. Fischer, Fred R. Radwanski, Henry Skoog
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Abstract
A high pulp content nonwoven composite fabric is disclosed. The composite fabric contains more than about 70 percent, by weight, pulp fibers which are hydraulically entangled into a continuous filament substrate. This high pulp content composite nonwoven fabric may be used as a heavy duty wiper or as a fluid distribution material, cover material, and/or absorbent material in an absorbent personal care product. Also disclosed is a method of making the high pulp content nonwoven composite fabric.
Claims23
A method of making a high pulp content nonwoven composite fabric having from about 10 to about 25 percent, by weight, of a nonwoven continuous filament substrate;
- and more than about 70 percent, by weight, of a fibrous component consisting of pulp fibers, said method comprising:
- superposing a pulp fiber layer over a nonwoven continuous filament substrate having a bond density greater than about 100 pin bonds per square inch and a total bond area less than about 30 percent;
- hydraulically entangling said layers to form a composite material;
- and
- drying said composite.
A method of making a high pulp content nonwoven composite fabric having from about 10 to about 25 percent, by weight, of a nonwoven continuous filament substrate;
- and more than about 70 percent, by weight, of a fibrous component consisting of pulp fibers, said method comprising:
- superposing a pulp fiber layer over a nonwoven continuous filament substrate;
- hydraulically entangling said layers to form a composite material;
- and
- drying said composite.
A method of improving the abrasion resistance of a high pulp content nonwoven composite fabric having from about 10 to about 25 percent, by weight, of a nonwoven continuous filament substrate;
- and more than about 70 percent, by weight, of a fibrous component consisting of pulp fibers, said method comprising adding up to about 3 percent of a de-bonding agent to the high pulp content nonwoven composite fabric.
Dependencies are inferred from the claim text.