| 摘要 |
A heat-sensitive color-forming recording material which comprises a recording layer comprising a particulate phenolic color former and a particulate leucc pigment, which are dispersed in a binder independently from each other, wherein the phenolic color former and or leuco pigment is present in the form of compatible solid particles of the phenolic color former and/or leuco pigment and a substantially inactive organic solid medium which is a low molecular weight thermoplastic polymer of at least one vinyl aromatic or nitrogen-containing vinyl monomer and which has a melting or softening point lower than that of the phenolic color former and/or leuco pigment, the organic solid medium being present in said compatible solid particles in an amount 2 to 250 times the amount of the phenolic color former and/or leuco pigment on a weight basis |
