Paperilaatujen
Paperilaatujen is a Finnish term that broadly denotes different types or grades of paper used in printing, packaging and specialty applications. Classification of paper types is typically based on fiber composition, grammage (weight per square metre), surface treatment, whiteness/brightness, opacity and caliper (thickness). These properties determine suitability for processes such as offset, digital printing, folding, gluing and conversion into board or tissue products.
Common categories include uncoated papers (newsprint, book and copy papers), coated papers (gloss, silk/matte finishes for
Standards and measurements are important in specifying paper quality: grammage (g/m²), ISO brightness and whiteness values,
Selection of a paper grade depends on intended use, print technology, required durability and ecological criteria.