基于羧酸银的光敏热成像技术进展

最近10年,光敏热显影成像材料在技术上取得了重要进展,特别是以羧酸银作为银源的这类材料.这些进展集中体现在1995年为满足商品需要而研制成功的世界上第一个具有高分辨力、可作诊断使用的医用X射线胶片的Kodak DryView激光成像片上.此后,采用同样技术的一类特殊片种,即高反差的印刷胶片也随之问世.这些产品的实践应用都相当成功,已被多家公司所采用.这些新产品得益于三个方面的技术进展:改进成像层的照相性质、高影像质量和低成本的激光成像硬件,这也是此研究工作的焦点.在这类材料上所取得的重要成就反映在它们的高分辨力、高最大密度、低最小密度以及整张胶片性质的均一性上.所有这些优点,再加上超过100年的影像稳定性,使原来“老”的光敏热显影技术发生了一次脱胎换骨的变化,成为了当今最新的一种硬拷贝成像介质.

ADVANCES IN PHOTOTHERMOGRAPHIC IMAGING TECHNOLOGY BASED ON SILVER CARBOXYLATES

Significant advances have been made within just the last ten years in the technology of photothermographic imaging materials, particularly those that utilize silver carboxylates as the source of silver for the metallic image. These advances have come about as the result of new commercial product needs that were precipitated by the introduction of the world's first high-resolution, diagnostic quality, medical x-ray film, Kodak DryView laser imaging film, in 1995. Since then, high-contrast graphic arts films, a special offshoot of the same technology, have been introduced. Both applications are sufficiently successful that they are now available from multiple companies. These new products have resulted from a three-pronged approach to their development: improved photographic film properties in the imaging layer, higher quality, lower cost laser imaging hardware, and focus of research designed to support this work. Significant achievements can clearly be seen in the form of high resolution, high D-max, low D-min, and uniform cross-film properties, all of which, when combined with image stability exceeding 100 years, re-establishes the "old" photothermographic technology as an up-to-date hardcopy imaging medium.