| 摘要 |
PURPOSE:To obtain a recording material producing a coloring image with high stability and satisfying essential conditions by employing a poly(1-allylvinyl-1- allylmethane) compound containing at least two frameworks in a molecule as an electron donative colorless dye. CONSTITUTION:An electron donative colorless dye containing at least two frameworks, shown by formula I, in a molecule is dissolved, solely or mixedly, into a solvent which is then contained in a microcapsule and applied onto a paper or the like to produce a coloring agent sheet. On the other hand, electron donative compound and additive are dispersed into a binder which is then applied, together with a pigment, onto a supporting material thus producing a color developing sheet. When a microcapsule sheet containing the electron donative colorless dye is laid on an electron acceptive compound sheet and applied with a load of 600kg/cm<2>, a blue green color emerges quickly and thus produced coloring image has high resistance against medicine, sunshine, and the like. |
