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