Thesis Details

Thesis Title: Analysis of Surfactant Lubrication Compositions for Sizing Cotton and Polyester/Cotton Blend Warps for Air Jet Weaving and the Effect of Surfactant Lubrication on Fabric Preparation
Thesis Author: Patrick Brock
Abstract: Waxes are the most difficult materials to remove during fabric preparation. Waxes induce complications because of their hydrophobic nature. Incomplete removal leads to residual deposits on the fabric. For example, incomplete removal of this wax can result in residual deposits on the prepared fabric. Variable fabric wetting results and creates a greater potential for uneven dying and finish application. This research proposed to determine if substituting ionically-enhanced surfactant additives for wax in sizes better serves fabric preparation without deteriorating greige plant performance. Two yarns, 100% cotton and 65/35 polyester/cotton, were each sized according to 18 experimental conditions. Conditions providing the highest Reutlinger Webtest ST -6 values were selected for in-plant processing. Processing and quality comparisons against wax-lubricated sizes were conducted. The effect of wash temperature on desizing was determined by desizing at reduced temperatures. Nonionic surfactant functioned as a lubricant and size film platicizer (softener). Weaving performance was not affected. Solvent extractable matter was decreased as compared to the wax-lubricated fabrics. Enzyme and water extractable removal were not affected. Lower temperatures produced extractable content comparable to waxlubricated fabrics desized at higher temperatures. Ionically-enhanced surfactant lubrication performed equally well at sizing and weaving to wax-lubricated size. Fabrics sized with ionically-enhanced surfactant additive sizes exhibited relatively lower extractable levels in prepared fabrics, even at lower washing temperatures. Ionically-enhanced surfactant lubrication is a viable replacement for wax lubrication of sizes.