加工35毫米和16毫米彩色拷贝有一个突出的要求,就是声带须作特殊的处理,因为彩色声带上必须保留有一定数量的金属银。在冲洗彩色正片过程中,被还原出来的金属银画面和声带,经过漂白工序后,均转变成银监(亚铁氰化银和铬酸银),如果进一步定影,则画面和声带上的银盐就一起溶于定影液中,留下的就是纯染料的影象。染料声带虽然在目视条件下是黑色的,但与银声带比较起来,有很大的差别。银声带对于各种波长的光线,从 One striking requirement for the processing of 35mm and 16mm color copies is that the vocal cords have to be handled specially since a certain amount of metallic silver must be retained on the color vocal cords. During the process of processing the color print, the metallic silver screen and vocal cords that have been restored are converted into silver supervisors (silver ferrocyanide and silver chromate) after the bleaching process, and if further fixed, the silver on the picture and vocal cords The salt dissolves in the fixer together, leaving behind a pure dye image. Although the dye vocal cords are black under visual conditions, they are quite different from the silver vocal cords. Silver vocal band for a variety of wavelengths of light, from