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柯达公司采用漂白抑制剂保留银声带,可省去再显影工序。具体的方法是在普通彩色法的表面涂一辅助层。辅助层的卤化银含量控制在20～40毫克/呎~2,感光度较乳剂层低2—15倍,增感峰为480mμ或590mμ(介于感兰,感绿乳剂层或感绿感红乳剂层的光谱增感峰之间),因此,能在白光曝光画面时,辅助层不感光:在通过Wratten滤色片曝光声带时,不致因辅助层曝光不足,乳剂层曝光过度而出现光晕。辅助层共有三种:一种含漂白抑制成色剂(BIR成色剂),它与显影剂的氧化
Kodak bleach inhibitors to retain silver vocal cords, eliminating the need for redevelopment processes. The specific method is to apply an auxiliary layer on the surface of ordinary color method. The auxiliary layer has a silver halide content of 20 to 40 mg / ft2, a sensitivity of 2 to 15 times lower than that of the emulsion layer, and an enhancement peak of 480 m [mu] or 590 m [mu] The spectrum of sensitizing peaks in the emulsion layer) so that the auxiliary layer is not sensitive to light when the screen is exposed to white light: halo exposure occurs when the vocal cords are exposed through a Wratten filter due to underexposure of the auxiliary layer and overexposure of the emulsion layer. There are three types of auxiliary layers: a bleach-inhibiting coupler (BIR coupler) that is compatible with the oxidation of the developer