| abstract |
The invention relates to a process for the manufacture of photopolymer printing blocks, which are utilizable for producing printed matter by flexography, typography or dry offset, of the type including a stage for polymerizing areas by exposure to ultraviolet rays; a stage for engraving non-polymerized areas by immersion and brushing in an engraving bath contained in an engraving tank, the bath becoming loaded with dissolved particles or particles in suspension during the engraving stage; and a separation of the constituents of the engraving bath, with the liquid obtained at the time of separation being injected back into the engraving tank, characterized in that the separation consists of filtration, during which the particles are progressively eliminated. The invention also relates to an engraving device for carrying out the process. |