| 摘要 |
The present invention relates to an ultraviolet ray apparatus for printing machines which is characterized in that it uniformly diffuses the radiation emitted by the source on the support to be printed. The apparatus according to the present invention allows to control the printing process in optimal manner avoiding the heating of the support itself and the deformations deriving from such heating. Thus, the apparatus according to the present invention is particularly effective in case of printing on plastic material film. The apparatus comprises a source (10a) of ultraviolet rays, a reflector (10b) and a negative lens (10c). |
