Patent ID: 11912052
Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B  C | IPC B  C

Claim 0:
1. A thermosensitive recording medium having a thermosensitive recording layer comprising a colorless or pale colored electron donating leuco dye and an electron accepting color developing agent on a substrate, wherein the thermosensitive recording layer contains N-[2-(3-phenylureido)phenyl] benzenesulfonamide and an urea-based compound represented by the general formula 1 as the electron accepting color developing agents,, wherein R1 represents a substituted or unsubstituted alkyl group, aralkyl group or aryl group, and R2 represents a hydrogen atom or an alkyl group, and
wherein the content of N-[2-(3-phenylureido)phenyl] benzenesulfonamide is from 0.1 to 15.0 parts by weight per 1.0 part by weight of the urea-based compound represented by the general formula 1.