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US 10,737,459 B2Granted
Hydraulically treated nonwoven fabrics and method of making the same
AssigneePfnonwovens LLC
InventorsPeter Zajaczkowski, John C. Parsons, Karthik Ramaratnam
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Abstract
A nonwoven laminate having a SMS structure is hydraulically treated by particular process parameters to improve softness and tactile feel. The nonwoven laminate may also be imparted with one or more regular aperture patterns by additional hydraulic treatment processes, where the initial hydraulic treatment provides for improved aperture definition.
Claims11
A nonwoven laminate, comprising:
- first and second outer nonwoven layers comprising spunbond fibers;
- and
- a third inner nonwoven layer comprising meltblown fibers,
- wherein the nonwoven laminate is thermally bonded with a regular bond pattern having a percentage bond area of 10% or greater,
- the nonwoven laminate is hydraulically treated,
- the basis weight of the third inner layer is at least 5 grams per square meter (gsm);
- and
- the nonwoven laminate 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.
5 more elements
Dependencies are inferred from the claim text.