The cleaning sheet 1, wherein {HEAD ~ said ultrafine fibers containing portion} further contains {TAIL ~ thick fibers} having a fiber diameter larger than those of said first and second ultrafine fibers 
contains
The cleaning sheet 1 , wherein { HEAD ~ said ultrafine fibers containing portion } further contains { TAIL ~ thick fibers } having a fiber diameter larger than those of said first and second ultrafine fibers
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH