Imageable elements with improved dot stability are disclosed. The imageable elements comprise a layer of an imageable composition over a support. The imageable composition comprises an infrared absorbing compound, an acid generator, an acid activatable crosslinking agent, a polymeric binder, and about 0.01 wt % to 1 wt % of an added onium compound. The elements may be thermally imaged and developed to produce images useful as lithographic printing plates.
公开了具有改善的点稳定性的可成像元素。这些可成像元素包括在支撑体上的可成像组合物层。可成像组合物包括红外吸收化合物、酸发生剂、酸可活化
交联剂、聚合物粘合剂和约0.01重量%至1重量%的额外的离子化合物。这些元素可以通过热成像和显影来产生有用作为印刷版的图像。