The thickness range with regard to labeling foil in the printing industry refers to the variation in thickness that is tolerated within a batch of foil material. It is an important quality characteristic, because a uniform thickness across the entire width and length of the foil is crucial for consistent printing results and the processability of the foil in printing machines.
An excessive thickness range can lead to problems in the printing application, such as uneven ink distribution, irregular adhesion to substrates, and difficulties in performing cutting and finishing processes. Manufacturers of labeling foil therefore strive for the smallest possible thickness range in order to ensure the high quality and reliability of their products.