Bleached all-cotton and 50/50 cotton-polyester jersey knit fabrics were used for experimental purposes in this study. They were constructed similarly from open-end and ring-spun yarns in sizes 16s and 22s (English cotton count), respectively, with twist multiples suitable for each yarn type. The performance properties of the fabrics were evaluated initially and following 5, 15, and 25 laundering periods by means of a battery of destructive and nondestructive tests. When the physical characteristics of the fabrics composed of open-end-spun yarns were compared with those of ring-spun yarns, the open-end-spun cotton and cotton-polyester yarns in sizes 16s and 22s displayed superior resistance to pilling, slow wickability, and good dimensional stability. Because of the compactness of the open-end-spun yarns, these yarns experienced the least amount of compression and the greatest percentage of recovery. Due to the strength deficiencies of open-end-spun yarns, the cotton and cotton-polyester fabrics produced by this spinning method and composed of sizes 16s and 22s yarns were weaker, with respect to bursting and abrasion, when compared to fabrics constructed from yarns produced by the conventional ring-spinning technique.
Jersey knit fabrics of all cotton and 50/50 cotton-polyester representative of two yarn sizes of open-end and ring-spun yarns were evaluated with regard to their soiling propensity. An oily soil was applied to each fabric in the initial state, after 25 periods of laundering, and after 25 wcar-taundering periods, and subsequently the soiled specimens were exposed to five 45-minute laundering periods in a Launder-Ometer. Reflectance values taken before and after soiling and after laundering served as the basis for findings, which revealed that the condition of the fabric at the time of soiling was related to the amount of soil accepted and released by the fabrics. Additional findings generally pointed to the superior performance of the ring-spun yarns, the cotton fibers, and the 37s yarns in repelling and releasing the oily soil. ~
All‐cotton work trousers finished with two pad‐vapor‐set processes, a conventional pad‐dry‐cure, and a proprietary pad‐dry‐cure durable press treatment were exposed to wear and/or laundering and evaluated at intervals with regard to different performance characteristics. Thirty men em ployed in maintenance positions at Texas Woman's University served as the wear panel for 20 wear‐laundering periods. The results of the study showed that, generally, the pad‐vapor‐set pro cesses were evaluated as being the most desirable finishes for work trousers. Trousers thus finished were acceptable to the men who wore them as far as appearance and durability were concerned. Although the conventional pad‐dry‐cure and the proprietary finishes excelled in appearance, the short wear‐life of the trousers finished by these methods made them inappropriate for such end use.
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