Development-accelerato-releasing (DAR) Coupler:Part IV.The Effect of the DAR Couplers with Different Hydrazines on the Photographic Characteristics of Color Negative Material

摘要

The effect of five development-accelerator-releasing (DAR) couplers derived from different hydrazines on the photographic characteristics of color negative material has been studied It was found that the development-accelerator-releasing couplers examined may be used together with cyan couplers in a color negative material to increase the photographic speed;no apparent difference was observed with the different hydrazines.