Cotton Warp Preparation and Sizing Practice
topic
Cotton warp preparation uses starch or PVA-based sizing at 8 to 14 percent add-on for ring-spun and 6 to 10 percent for compact-spun yarns, with sizing temperature of 85 to 95 degrees Celsius, squeeze pressure of 15 to 25 kilonewtons, and drying at 110 to 140 degrees Celsius, followed by waxing at 0.3 to 0.8 percent for friction reduction, with the complete preparation chain being the most thoroughly standardised and documented of all natural fibre warp preparation processes from cotton's dominant position in global weaving production.
Role
Provides the reference preparation framework for the world's most widely woven fibre whose preparation practices represent the most extensively researched and optimised body of warp preparation knowledge, with cotton sizing serving as the baseline against which other fibre preparation processes are compared and from which adaptations are developed for other natural and synthetic fibre types with different surface chemistry and mechanical properties.