| 摘要 |
PURPOSE: To enable formation of a high density image by constituting a developer layer of a binder, a thickener and a granular reacting agent which reacts with almost colorless dye precursors to form an image. CONSTITUTION: This developing sheet consists of a supporting body having front and rear surfaces and a developer layer applied on the surface of the supporting body. The developer layer contains a granular reacting agent, a binder and a thickener. The reacting agent consists of a material which can react with substantially colorless dye precursors to form an image when the agent is brought into contact with the dye precursors. By adding the thickener as little amt. as possible, the amt. of the reacting agent particles included in the whole developer layer can be increased to obtain high image density. Thus, a high density image can be formed. |
