TMD 303 Lecture Notes - Lecture 6: Scutching, Retting, Wrinkle
28 Sep 2016
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In uzbek: naturally colored cotton, fox fiber. Quality: hvi, high volume instrumentation, length, will make the cotton more valuable, number 1 importance for value. Trash content: if there is not a lot of leaves and other residue in the cotton. Fineness/maturity: finer is better, cotton looks like a twist ribbon as plant matures, not all fibers will mature more mature will look better and less fuzzy, micromere. For every one cotton, you get two seeds. Squeeze it, you get cotton seed oil: for food. Could remove the poisonous chemical for protein nuts that humans can eat. Flax plant: grow, pull, retting (to degrade non-cellulosic materials, release fiber. Chemical is another option: do it in tanks, enzymes. Scutching: break up non fiber stuff. Properties: chemical: moisture regain high (12%) fiber is absorbent. Properties: mechanicals: strong among natural fibers (5g/d, poor wrinkle recovery. Uses: absorbent, non-insulating, (cool) summer clothing, absorbent, handkerchiefs.
