| 摘要 |
PROBLEM TO BE SOLVED: To form an image which can be recorded with an infrared laser beam, does not require the use of a developer or the like, generates no waste, and has a completely dry white and black or color and clear and high contrast by containing a diazonium salt compound a specific compound in a photosensitive and thermosensitive recording layer. SOLUTION: This photosensitive and thermosensitive recording layer contains a diazonium salt compound and a compound expressed by a formula I or II, where R<1> and R<2> independently indicate a phenyl group, an other aromatic hydrocarbon group which may contain a hetero-atom or the like, R<2a> indicates a phenylene, an other bivalent aromatic hydrocarbon group which may contain a hetero-atom or the like, R<3> indicates an alkyl group having carbon atoms of 1-20 and substituted with-Si(R<9> )(R<10> )(R<11> )a phenyl group or the like, R<4> indicates a phenyl group, an other aromatic hydrocarbon group may contain hetero atom or the like, E indicates P(R<14> )(R<15> )(R<6> ), SR(R<6> )(R<6a> ), N(R<7> )(R<8> )(R<8> ), and R<6> -R<11> and R<14> -R<16> indicate an alkyl group having carbon atoms of 1-12 or the like, respectively. |
