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Nonwovens / Technical Textiles

Hills Develops Nanofiber Meltblown Fabric Technology

  Hills Inc., a West Melbourne, Fla.-based specialty fiber extrusion equipment producer, has developed technology to produce meltblown fibers with an average size of 250 nanometers (nm) and a range between 25 and 400 nm.

nwnews

250 nanometer average diameter meltblown fiber
on a 20 micron diameter spunbond from Hills Inc.

Hills said its development of meltblown nanofibers grew out of the company’s development of true bicomponent meltblown extrusion equipment. The company has used its patented printed-circuit-style extrusion dies to produce the fibers from high-melt-flow-index polypropylene. According to Hills, a hole count of 100 holes per inch and up and extremely high length-to-diameter ratios enable production of these nanofibers at reasonable rates, and puts meltblown production in the same size range that was previously the exclusive domain of multicomponent spinning or electrospinning technology.


May/June 2007

 

 




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