A composite material comprising a plurality of nanofibers intertwined with
a plurality of coarse fibers to form one or more layers is provided. The
nanofibers can be any suitable type of nanofiber, including electrospun
fibers. A composite material comprising a plurality of electrospun fibers
intertwined with a plurality of coarse fibers to form a single layer is
also provided. A composite material comprising a plurality of electrospun
fibers combined with a plurality of coarse fibers to form a plurality of
layers, i.e., a multi-layer material, is also provided. In some
embodiments, gradients in one or more directions are produced.
Embodiments of the invention also provide processes for producing the
composite nanofiber material. The materials are useful for any type of
disposable garment, wipe, hospital garment, face mask, sterile wrap, air
filter, water filter and so forth. Materials described herein can provide
strong and varying surface effects, such as wicking. In one embodiment,
hydrophobic fibers have a sufficiently small diameter to create a lotus
effect.