Internal Strength

The term internal strength, in relation to labeling foils and labels in the printing industry, refers to the mechanical stability and resistance of the material to internal stresses and external influences. This is particularly important for the durability and functionality of labels during application and throughout their lifespan.

The internal strength of a foil or label determines how well the material can withstand stresses such as pulling, tearing, or deformation without failing. High internal strength is necessary to ensure that the foil or label remains intact during processing in printing machines, during transport, and when applied to products or packaging.