Tuesday, January 4, 2011

Second Year Students-Competency 1 Review

Natural fibers: Cotton, Linen (Flax), Wool, Silk, Ramie
Cotton-used in a variety of fabrics for clothing and furnishings due to low cost and wide availability.
Silk-very old fiber, damaged by sunlight and perspiration. filament fiber.
Ramie-plant fiber-stiff and brittle, best combined with other fibers
Cellulosic fibers: acetate, rayon, triacetate
Rayon-first manmade fiber
Polyester-manufactured fiber, excellent wrinkle resistance
Spandex-used in outer wear and exercise wear, easy to care for, excellent elasticity. replaced rubber in many clothing applications.
Aramid-excellent strength and heat resistance, used in protective wear
Olefin-manufactured fiber, excellent abrasion resistance, used in home and industrial furnishings
Tencel-newest manufactured fiber

Plain weave fabrics: broadcloth, poplin, gingham
Twill weave-firmer, heavier weave. Twill weave fabrics: denim, flannel, gabardine
Satin weave creates a lustrous appearance
Weft knits: single-knit jerseys, ribbed knits, jersey knits

Fiber dyeing allows fabric to be dyed with uniformity and good color fastness
Yarn dye method best for plaids
Screen printing method best for printing large designs
Bleaching used to remove impurities and ensure a "true" dye
Piece dyeing allows fabric to be dyed after it has been woven or knitted

No comments: