Evaluation of processing characteristics of washed cotton.
Perkins-HH Jr.; Cocke-JB; Bragg-CK
NIOSH 1986 Oct; :31-38
Cottons were washed by several methods, potentially useful for commercial application, and the effects on dust levels, fiber properties, and processing quality of the cottons were determined. Four washing systems were used: continuous rayon rinse system, continuous wool scouring system, batch kier system, and Cotton Incorporated continuous batt washing system. Washing cotton by using both batch and continuous processes and treatments varying from a mild wash with a wetting agent to a severe scour and bleach with sodium-hydroxide and hydrogen-peroxide reduced dust levels in processing by about 50%. Washing cotton tended to lower processing and yarn qualities. The adverse effects were most pronounced with the continuous systems that used a mechanically prepared batt for feeding the wash line and for treatments that included scouring with sodium-hydroxide. The washing treatments that used only a wetting agent or wetting agent and hydrogen-peroxide bleach were effective treatments that caused minimal adverse effects on fiber properties and processing and on yarn qualities. The authors conclude that with some modifications in washing systems and optimization of finishes and the yarn manufacturing processes, it may be possible that acceptable commercial yarns can be produced from these cottons.
Textiles-industry; Plant-dusts; Bacterial-dusts; Cotton-dust; Dust-control; Cotton-fibers; Airborne-dusts; Dust-exposure
Wakelyn-PJ; Jacobs-RR; Kirk-IW
Washed Cotton: Washing Techniques, Processing Characteristics, and Health Effects