TT 105 Lecture Notes - Lecture 7: Titanium Dioxide, Warp And Weft, Nylon
12 Feb 2018
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Increase: cost, cover (hiding power), hand (softness), snagging, potential warmth, static related problems. Increase: reflective properties (hiding power), abrasive properties of yarn, replacement costs, machinery downtime, jic inventory (just in case) Triangular or trilobal, dog bone, flat ribbon, hollow. Flat: also called producer yarns, as extruded, tend to be lustrous (sparkle) Bulked or textured: mostly used in apparel and carpets: nylon: top weight fabrics (and carpets, polyester: top weight & bottom weight. Bulk: less stretch, more volume, tend to be softer. Crimp texture: saw tooth (ex: banlon), edge crimped (ex: agilon) Increase yarn stretch: elongation, recovery, fabric shrinkage, potential variations in fabric weight, potential variations in fabric dimensions. Manufactured & synthetic: rayon, polyester, nylon, carbon, fiberglass, wire (finer diameter, more filaments) Problems-defects: streaks in the fabric caused by non-uniform, thicker, thinner, defective yarn, machine, or other parameters. More surface area- clots blood and reduces blood loss (hemorrhage), hides micro-organisms.
