A process and apparatus for producing sub micron fibers, and more specifically a process and apparatus for effecting formation of {TAIL ~ sub micron fibers} by {HEAD ~ fibrillation} of polymer films, and nonwoven materials and articles incorporating them 
A process and apparatus for producing sub micron fibers , and more specifically a process and apparatus for effecting formation of { TAIL ~ sub micron fibers } by { HEAD ~ fibrillation } of polymer films , and nonwoven materials and articles incorporating them
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