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The Effect of Tow Stretch Breaking Process Parameters on High-Bulk Acrylic Yarn Properties
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DOI：10.3390/textiles6020043.png)
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Abstract
En 中文
This study represents the first comprehensive investigation examining how oven temperature and drawing ratios, two key tow stretch-breaking parameters, influence the properties of high-bulk acrylic yarns. Only the tow parameters were altered, while all other production parameters involved in converting from tow to yarn remained constant. Two experimental sets were conducted. In the first, oven temperatures (100 degrees C, 120 degrees C, 130 degrees C, 150 degrees C, and 170 degrees C) and the ratios (1.3, 1.47, 1.59, and 1.64) in the drawing zone (E1) were altered. In the second, oven temperatures (130 degrees C and 150 degrees C) and the ratios (1.3, 1.35, 1.49, 1.54, 1.62, 1.66, 1.70, 1.81, and 1.90) in the break-draw zone (E5) were altered. The samples, produced on industrial-scale machines, were evaluated for shrinkage of fiber slivers in water steam, yarn hairiness, unevenness, tensile strength and strain, and hand-feel rating of yarn balls. The highest shrinkage was obtained at 130 degrees C and 150 degrees C with the drawing ratio of 1.47, while the lowest occurred at 130 degrees C with the drawing ratio of 1.3. The lowest tensile strength and strain were obtained at 150 degrees C, while the highest values were obtained at 130 degrees C with 1.59. The yarn hairiness and unevenness were lowest at 130 degrees C and increased at both lower and higher temperatures.
Keywords:
high-bulk
acrylic yarn
acrylic tow
stretch-breaking