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