| 摘要 |
PURPOSE:To provide a thermal recording material having high color forming sensitivity and reduced in the color development of a background part under high temp. environment. CONSTITUTION:In a thermal recording material wherein a thermal color forming layer utilizing color forming reaction of a leuco dye and a coupler is provided on a support, the coupler is a phenolic compd. having a hydroxyphenyl group and a part of the phenolic compd. is a metal salt. |
