Like a monitor uses pixels to display images, the offset process uses screening dots. The type of screening used determines the quality of a printed sheet. We generally use 80 lines screening on all paper types. The individual dots are so small that they are not visible with the naked eye. This choice of screening results into ‘calm’ images. Unlike many other printing companies, we even use 80 lines screening when printing uncoated paper. In order to comply with the ISO-12647-2 standard, we apply correction curves during the plate-imaging-process, which results in almost equally sharp pictures as with coated paper.
Besides 80 lines screening, we also print using Heidelberg’s Satin (FM) Screening. Especially detailed images appear sharper using this improved screening. Unlike other earlier generations of FM-screening, this screening does not create noise in half tones.