| 摘要 |
PURPOSE:To provide the titled device capable of enhancing image-recording speed and giving a stable recorded image, by a method wherein a fixable heat- sensitive recording body provided with a dispersed layer comprising an acid- stabilized diazonium salt, a coupler and a hydrophobic guanidine derivative is used as ticket paper. CONSTITUTION:A fixable heat-sensitive recording body provided with a dispersed layer comprising an acid-stabilized diazonium salt, a coupler compound and a hydrophobic guanidine drivative of the formula (wherein each of R1, R2, R3 and R4 is H, alkyl, cycloalkyl, aryl, aralkyl; R5 is one of the abovementioned groups except H) is used as ticket paper. The guanidine derivative of the formula acts as a base-generating agent having a low melting point, and can be dispersed uniformly into a hydrophilic binder in the form of a particulate material. The image-recording speed can be enhanced to 500Hz (recording time per dot being 2ms), and the recorded image is stabilized by irradiating with rays of light having an energy density of not lower than 0.4J/cm<2> and wave length of shorter than 420mum. |
