CV of Tenacity at Break (%) refers to the variation in fiber strength between individual fibers and is measured using the coefficient of variation.
During spunlace production, fibers undergo carding, web formation, and high-pressure hydroentangling processes. If fiber strength varies significantly, it may lead to fiber breakage, uneven web formation, and inconsistent fabric quality. A low CV (Coefficient of Variation) of Tenacity helps ensure smoother processing and better final product performance.
What Is CV of Tenacity at Break?
CV of Tenacity at Break is a measure of the uniformity of fiber tensile strength, expressed as the percentage variation relative to the mean value.
A low CV of tenacity ensures consistent fiber performance and stable processing in spunlace applications. Therefore, it is one of the key factors in evaluating the quality of polyester staple fiber specifically used for spunlace nonwoven products.
Our polyester staple fiber has a CV of Tenacity at Break of 6.31%, which demonstrates excellent consistency for spunlace applications.