Simply put, whiteness is a numerical indicator of how close the surface color of an object is to pure white. It represents an object's ability to reflect visible light (especially in the blue light band, approximately 457nm).

Whiteness, broadly defined, is an important comprehensive indicator for evaluating talc powder quality. It primarily includes dry whiteness, wet whiteness, and hue.

Among the many indicators used to evaluate talc powder quality, "wet whiteness" is a key parameter, significantly impacting the final product performance.

Among the many indicators used to evaluate talc powder quality, "wet whiteness" is a key parameter, significantly impacting the final product performance.

When choosing talc, at least the "four degrees" of talc itself should be considered, namely: purity, whiteness, flakeness and fineness. Generally speaking, in order to evaluate the quality of talc products, at least the above four factors should be considered. Judging the quality by a single indicator may be incomplete. If someone judges the quality of talc only based on the average particle size, it is very controversial.