近几年来,以PS版为代表的照相制版技术在国外得到了广泛的应用,但PS版等版材感光度低,作为直接制版材料,须配备高感度的中间版。因此,一种新型的具有高感度的直接照相制版材料(无须中间版复制)也即利用银盐扩散转移反转原理(Silver In recent years, PS plate as the representative of the photographic platemaking technology in foreign countries has been widely used, but the PS plate and other photographic materials with low sensitivity, as a direct plate making material, to be equipped with a high sensitivity of the intermediate version. Therefore, a new type of direct-to-plate material with high sensitivity (without intermediate copy) is also based on the silver salt diffusion transfer reversal principle (Silver