| 摘要 |
PURPOSE:To form a color latent image by exposure and to enable color development by heating. CONSTITUTION:This ink particles contain at least a photosensitive reducing agent, an org. silver salt, a reducing agent for color development and a color developing coupler. The photosensitive reducing agent is a compd. selected among naphthols, anthracenes, pyrazolin-5-ones, acylacetonitriles, hydrazones, 1,3-indanediones, furans, oxazoles, imidazoles and ascorbic acids. The amt. of the photosensitive reducing agent added is 0.5-10mol% of the amt. of the org. silver salt and the amt. of the reducing agent for color development added and that of the color developing coupler are 50-200mol% each of the amt. of the org. silver salt. |
