答:这是电影染印法中一个新的科研项目。它是以无银空白片代替卤化银空白片、以普鲁士兰代替银质声带的一种电影染印彩色拷贝。因此可以大量节约白银,简化加工工艺,并可把暗室操作改为亮室操作,对胶片的成品鉴定和质量提高较为有利。无银声带的工艺是在印制品红浮雕画面 A: This is a new research project in the film and dye printing. It is a non-silver blank film instead of silver halide blank film, with Prussian blue instead of silver vocal cinema color printing a color copy. So you can save a lot of silver, simplifying the processing technology, and darkroom operation can be changed to bright room operation, the identification of the film and quality improvement is more favorable. No silver vocal craft is printed on the red relief screen