{TAIL ~ Polyisobutylene} is disposed on the surface of the fibers to form treated fibers having {HEAD ~ a treated thickness} 
{ TAIL ~ Polyisobutylene } is disposed on the surface of the fibers to form treated fibers having { HEAD ~ a treated thickness }
TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD