Evaluation of cotton fiber maturity measurements

Cotton fiber maturity, degree of secondary cell wall thickening relative to the perimeter, is one of the most important fiber quality and processing parameters of cotton. Immature fibers result in low dye uptake, increased fiber breakage, fabric defects, and waste. Because of that, breeders, cotton producers, spinners, and textile manufacturers desire cotton lint that is mature. However, fast and reliable methods to quantify maturity that fit into the current breeding and marketing systems are not available. The reference method to measure fiber maturity is the cross-section method, where 1 mu.m thick fiber cross-sections are evaluated under a microscope. It is time consuming, tedious, and impractical for high volume measurement of fiber maturity. Interest is rising toward rapid routine instruments to measure fiber maturity such as the Advanced Fiber Information System (AFIS) and the cottonscope. The AFIS instrument individualizes and presents individual fibers to electro-optical sens