Indicates a paper’s ability to reflect light and indirectly express its degree of brightness. High whiteness allows chromatically faithful reproduction of the original images. Low whiteness, on the other hand, is more appropriate for printing texts, since the lower reflection of light avoids reading fatigue. Various methods are available for controlling the whiteness of paper; the most common are ISO 2470 and CIE Whiteness (ISO 11475:2004).
