Solution steps
OGV printing inks, folding boxboard and label papers on the market are to be characterised in the laboratory. Extensive printing tests are also planned on the sheet-fed offset press at Fogra. Different ink sequences and screening algorithms will be used. In addition, the new SCTV method is to be applied with the aim of achieving linear tone value behaviour in printing.
Achieved results
The process standard is similar to ISO 12647-2. It describes a substrate category as well as solid tone colours and tone value increases of the primary colours on practice papers. KVCGMOY is recommended as the printing sequence. To avoid moiré effects, the spot colours OGV must be screened non-periodically (FM).