The improved two types of crystal modification of 2-m-toluidino-3-methyl-6-di-n-butylaminofluoran, as well as the crystalline toluene adduct thereof have high solubility in inner-phase solvent(s). Recording materials that use those compounds as electron donating color formers exhibit particularly good performance in various characteristics such as whiteness of the background, its storage stability, color rendition, sensitivity for color formation and image storage stability.
经改进的 2-甲基-3-甲基-6-二正丁基
氨基荧烷的两种晶体改性物及其结晶
甲苯加合物在内层溶剂中具有很高的溶解度。使用这些化合物作为电子捐色形成剂的记录材料在各种特性方面都表现出特别好的性能,如背景白度、存储稳定性、色彩表现力、对色彩形成的敏感度和图像存储稳定性。