无银声带是用非银盐材料制作的,以代替一般电影考贝中的银声带。染印法电影考贝的画面不需要银盐,如果声带也不用银盐,则整个电影胶片不仅能节省大量白银,(每100万米胶片可节省150公斤白银),而且能在亮室涂布和加工。这对控制和检验都很方便,也有利于提高产品的质量。 Silver-free vocal cords are made of non-silver salt materials to replace the silver vocal cords in the film. Dyeing and Printing Laws The test film does not require silver salt, and if the vocal cords do not use silver salt, the entire film will not only save a great deal of silver (150 kg of silver per million meters of film), but will also coat bright rooms And processing. This is easy to control and test, but also helps to improve the quality of the product.