Abstract
Previous investigations of tricot fabrics in relation to physical properties and dimen sional change due to laundering were extended to include another fiber, cotton, and the determination of effect of different amounts of yarn twist on fabrics of the fibers previously studied. Twenty two-bar tricot fabrics of 70/1 cotton yarn with different runner ratios, and 20 each of acetate and viscose yarns of 75 denier with 21, 10, 20, or 30 turns per inch were included in the research. The effect of twist upon other rela tionships was established from observed data of stitch length, stitch density, diameter of yarn, runner ratios, wales and courses per inch, strength, and elongation. Immediate elastic recovery, permanent set, and delayed recovery were evaluated for a wide range of stress-strain levels.
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