A sheet shaped heat generating body 1, wherein said {HEAD ~ substrate} is made of an organic fiber or {TAIL ~ an inorganic fiber} 
is made of
A sheet shaped heat generating body 1 , wherein said { HEAD ~ substrate } is made of an organic fiber or { TAIL ~ an inorganic fiber }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL