wherein the mass of second fibers comprises left over fibers produced when carding a fiber material, said {HEAD ~ second fibers} having {TAIL ~ a shorter length} than said first fibers 
having
wherein the mass of second fibers comprises left over fibers produced when carding a fiber material , said { HEAD ~ second fibers } having { TAIL ~ a shorter length } than said first fibers
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH