From Optical Image to Infrared Image of drawing of a very fine biodegradable yarn

Basel Younes

Depending on extensive thermal analysis, a fine multi-filament yarn of 74 filaments, biodegradable aliphatic aromatic co-polyester yarn, are drawn on hot drawing rollers and plates at 60 OC in the hot drawing process. With original view, IR image illustrates the temperature variation to get the temperature profile scale along or across the process, image colours correspond to the temperature scale on the right.