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