| 摘要 |
<p>A process of forming a single color, ablation image having a D-max, or unexposed area, D-min and D-intermediate, comprising imagewise-heating, by means of a laser in the absence of a separate receiving element, an ablative recording element comprising a support having thereon, in order, a barrier layer having UV density and a colorant layer comprising a colorant dispersed in a polymeric binder, the colorant layer having an infrared-absorbing material associated therewith, the laser exposure taking place through the colorant side of the element,a) the laser exposure used to obtain the D-intermediate density is such that the colorant layer in that area is substantially removed but substantially none of the barrier layer in that area is removed, so that the characteristic density vs. decreasing exposure curve of the ablative recording element has a plateau at the D-intermediate density, andb) the laser exposure used to obtain the D-min density is such that both the colorant layer and the barrier in that area are substantially removed.</p> |
