| 摘要 |
FIELD: plate manufacturing process of printing industry, particular, methods for manufacture of color-selecting and color-correction photoplates. SUBSTANCE: the offered method consists in photographing color object by small-size photographic camera onto photosensitive layer and production of object image on the photosensitive layer; production from this image by contact method of color-correcting mask; photographing of combined photoimage and mask onto black-white photosensitive layer by reproduction photographic camera in transmitted light is carried out by photographing color object successively through red, green and blue zonal light filters onto different areas of black-white photosensitive layer and after photographic treatment color-selecting black-white negative images of color object are obtained. Color-selecting color-correction photoplates for yellow and purple colors are made by exposure on reproduction photographic camera of combined images of respective color-selecting negative and color-correction mask. In so doing, color-selecting color-correction photoplate for blue color is produced by exposure in transmitted light on black-white photosensitive layer of one color-selecting negative of blue color. EFFECT: fully eliminated from the process are expensive color photographic materials and reagents for color development, and simplified process due to exclusion of prolonged and complicated process, higher efficiency. |
