CPC D04H 1/56 (2013.01) [D01F 6/34 (2013.01); D01F 8/10 (2013.01); D04H 1/4258 (2013.01); D04H 1/4291 (2013.01); D04H 1/4309 (2013.01)] | 5 Claims |
1. A method of making a nonwoven fiber web, the method comprising:
a) providing a melt-blown nonwoven fiber web comprising bonded primary fibers having an average fiber diameter of 2 to 100 microns, wherein the primary fibers comprise a copolymer comprising divalent hydroxyethylene monomer units and divalent dihydroxybutylene monomer units;
b) opening at least a portion of the melt-blown nonwoven fiber web to provide loose primary fibers;
c) combining the loose primary fibers with secondary fibers; and
d) forming a secondary nonwoven fiber web comprising the primary fibers and secondary fibers, wherein said forming the secondary nonwoven fiber web comprises airlaying a fiber blend comprising the loose primary fibers and the secondary fibers.
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