| 摘要 |
PROBLEM TO BE SOLVED: To write a clear color by using a felt pen of an arbitrary color. SOLUTION: The thermal recording sheet comprises a 4-hydroxy-4'-n- butoxydiphenylsulfone, and one or more type compound selected from the group consisting of 1,2-di(3-methylphenoxy)ethane, di(p-methylbenzyl)oxalate, p- benzylbiphenyl, β-benzyloxynaphthalane, 4-biphenyl-p-tolylether, and o-xylylene- bis-(phenylether). |
