| 摘要 |
A heat-sensitive recording material comprises, on a support, a heat-sensitive colour layer contg.: (a) a leuco dye; (b) a chromogenic developer to form colour on application of heat; (c) 2-(2'-hydroxy-3'-tert.butyl-5'- methylphenyl)-5-chlorobenzotriazole (I) as UV stabiliser; and (d) a fluorescent brightener (II) comprising deriv(s). of 4,4'- diaminostilbene-2,2'-disulphonic acid.
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