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US 10,767,296 B2Granted
Multi-denier hydraulically treated nonwoven fabrics and method of making the same
AssigneePfnonwovens LLC
InventorsKarthik Ramaratnam, Paul DeNoia, John C. Parsons, Peter Zajaczkowski
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Abstract
A multi-denier nonwoven composite fabric having a nested structure is hydraulically treated by particular process parameters to improve softness and tactile feel.
Claims15
A nonwoven composite fabric, comprising:
- a first spunbond nonwoven web comprising continuous polymeric fibers, the continuous polymeric fibers of the first nonwoven web having a first denier;
- and
- a second spunbond nonwoven web comprising continuous polymeric fibers, the continuous polymeric fibers of the second nonwoven web having a second denier that is less than the first denier, wherein:
- the nonwoven composite fabric is hydroengorged, the ratio of the first denier to the second denier is in the range of 1.3:1 to 5:1, and
- the nonwoven composite fabric has an abrasion rating of 3.0 or higher as measured in accordance with ASTM D 4966-98.
2 more elements
A nonwoven composite fabric, comprising:
- first and second outer nonwoven layers comprising spunbond fibers;
- and
- a third inner nonwoven layer comprising meltblown fibers, wherein the nonwoven composite fabric is thermally bonded with a regular bond pattern having a percentage bond area of 8% or greater, the nonwoven composite fabric is hydraulically treated, the meltblown fibers comprise a polymer resin having a mean flow rate of less than 1800 g/10 min, and the nonwoven composite fabric has an abrasion rating of 4.0 or higher and an average Handle-O-Meter measurement (HOM) of 6.0 grams (g) or lower, wherein Handle-O-Meter is measured in accordance with a modified WSP test method 90.3 and the average Handle-O-Meter is obtained by taking the average of machine direction and cross direction HOM values.
Dependencies are inferred from the claim text.