It has been found that having {HEAD ~ a first polymer} in a first layer and a second polymer in a second layer aids in the ability to use lower temperature, pressure, and {TAIL ~ dwell time consolidation conditions} with the same or better properties as compared to a fiber having only the first polymer in one layer 
It has been found that having { HEAD ~ a first polymer } in a first layer and a second polymer in a second layer aids in the ability to use lower temperature , pressure , and { TAIL ~ dwell time consolidation conditions } with the same or better properties as compared to a fiber having only the first polymer in one layer
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH