| 摘要 |
The invention relates to high performance analogue and digital printing devices able to produce multicolor printing products whereby the quality of reproduction is close to color photography, based on a large range of carriers (paper, plastic, polyethylene etc.). The inventive method consists in treating a color (ink), applied on a transparent support, with the aid of ultraviolet impulses which are controlled in relation to intensity and position and directed towards a colored area to be transferred to the information carrier. The characteristics of irradiation are selected and coordinated with the color parameters in such a way that a photochemical reaction occurs in the radiated area, resulting in decomposition of a part of a color and in the transposition thereof on the information carrier. The inventive device for performing said method comprises a source(s) of UV radiation, elements for forming and controlling the radiation, a color carrier (support) which is transparent for UV radiation, an information carrier and units ensuring the displacement of the carriers, color application and color hardening after printing. |
