| abstract |
A thermosensitive reversible recording materialncapable of forming and holding clear colored images withna high contrast and capable of being repeatedly color-developednand color-erased many times, has anthermosensitive recording layer formed on a substratensheet and including, in addition to a substantiallyncolorless dye precursor, a reversibly color-developingnand color-erasing aromatic compound of the formula (I),nand a color-erasing promoter compound of the formula II.n n R 1 = naphthyl, phenyl or substituted phenyl group Y = -NHCO-, -SCONH-, -CONHCO-, -NHCONH-, etc., n = 10 to 29, A 1 , A 2 = naphthyl or phenyl group R 2 , R 3 = H, lower alkyl, lower alkoxy, aryl, halogennor aralkyl. |