MDSE 2650 Exam 1

Visual identification of natural fibers: cross sections and longitudinal views as well as visual recognition of the fibers

Longitudinal view of cotton fibers

Cross-section of cotton fibers

Naturally colored cotton

Naturally colored cotton boll

Flax in bloom

Longitudinal view of flax

Cross-section of flax

Longitudinal view of wool fibers

Coarse wool fiber showing medulla

Lamb’s wool — tapered and cut tips

Cross-section of wool fibers

Natural crimp in wool

Wool in natural colors

Longitudinal view of Bombyx mori fibers (a breed of silkworm)

Bombyx mori silk cocoons

Tussah cocoon (Tussah, aka tasar or tussa)

Eri silk cocoon

Muga silk cocoon

Cross section of Bombyx mori silk

Staple or filament fibers?

Top — staple fibers

Middle — filament fibers

Bottom — filament fibers

Natural Cellulosic Seed Hair Fibers (there are two we’re covering now)

Kapok

Milkweed

Less Common Cellulosic Bast Fibers

Ramie

Hemp

Jute

Kenaf

Bamboo

Cellulosic Leaf Fibers

Abaca

Piña

Raffia

Sisal

Seagrass

Fruit Husk Fiber

Coir

Kapok, a seed hair fiber

Milkweed, a seed hair fiber

Ramie, bast fiber

Hemp, aka hanaf, a bast fiber

Jute, a bast fiber

Kanaf, a bast fiber

Abaca, leaf fiber

Piña, from the pineapple plant, a leaf fiber

Raffia, a leaf fiber from the leaves of raffia palms. Shown here as a WIP mat.

Sisal, a leaf fiber

Seagrass, a leaf fiber

Coir, fruit husk fiber