摘要:
Negatives and laminates containing negatives for exposing liquid photopolymers in UV flexographic plate making are created by printing opaque images directly onto the protective or release cover films used in plate making processes. Combining negatives and cover films in this way eliminates two layers and two interfaces in the exposure process, reducing cost and improving quality.
摘要:
Solvent-based inks for inkjet printers are prepared by adding UV-absorbers and/or reflectors. These inks, when printed on uncoated or untreated polymeric films which may be either clear or dyed, produce negatives with sufficient opacity to make photopolymer-based flexographic printing plates.