FFD 200 Lecture Notes - Polyacrylonitrile, Color Theory, Print Job
29 Jun 2013
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Document Summary
At room temperature, can be stretched repeatedly to at least twice the original length. Return to approximately original length without focus it. Two type of stretch: power stretch & comfort stretch. Used in products for which only elasticity is desired. Apparel and interior textiles, ex: outerwear and sportswear, slipcover, bottom sheets a. spandex. Called lycra , 1st manufactured elastic fiber (1958) superior to rubber in strength and durability. Dyeability of the fiber and good strength, resulting fashionable colors and prints in. Needs no cover yarns since it takes dye( can reduces the cost and fabric weight) sheer garments. Resistant to body oils, perspiration, lotions, and cosmetics that degrade rubber. Not deteriorate with age as quickly as rubber does. Flex life is 10 times greater than rubber. Resistant to dilute acids, alkalis, bleaches and dry- cleaning solvents. Occurs on aged/ over stressed fabric > grin-through. Used to support, shape / mold the body /to keep textiles from stretching out of shape.
