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US 4,381,611 AGranted
Method and apparatus for absorbing moisture
AssigneePhillips Petroleum Company
InventorMarvin Wishman
Life of this patent
Estimating the term…
Abstract
An improved nonwoven polypropylene fabric, having the fibers on one side fused and the fibers on the opposite side unfused, which fabric when wetted exhibits a wet feeling on the fused side and a substantially dry feeling on the unfused side. Also disclosed are bandage, diaper, hat sweatband and headband or wristband structures employing the fabric as well as a method of transferring moisture from a moisture-bearing surface utilizing the fabric.
Claims11
A method of transferring liquid from a liquid-bearing surface, comprising:
- positioning a nonwoven fabric comprising a plurality of staple polypropylene fibers including a plurality of unfused polypropylene fibers on a first side thereof and a second plurality of fused polypropylene fibers on a second opposite side thereof with at least a portion of the unfused fibers of the first side in contact with the liquid on the liquid-bearing surface;
- and
- allowing the liquid from the liquid-bearing surface to migrate through the unfused fibers to the fused fibers on the second side of the nonwoven fabric.
A method of transferring liquid from a liquid-bearing surface, comprising:
- positioning a nonwoven fabric comprising a plurality of polypropylene fibers including a plurality of unfused polypropylene fibers on a first side of said nonwoven fabric and a second plurality of fused polypropylene fibers on a second opposite side of said nonwoven fabric with at least a portion of the unfused fibers of the first side in liquid flow communication with the liquid on the liquid-bearing surface;
- and
- allowing the liquid thus communicating with the unfused fibers to migrate through the unfused fibers to the fused fibers on the second side of said nonwoven fabric.
Dependencies are inferred from the claim text.