FIBERS What are fibers A thread or filament

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FIBERS

FIBERS

What are fibers? A thread or filament from which a textile is formed.

What are fibers? A thread or filament from which a textile is formed.

Fiber Categories 1. Natural Come from an animal or plant source 2. Man-made Regenerated

Fiber Categories 1. Natural Come from an animal or plant source 2. Man-made Regenerated fibers Synthetic fibers

Natural Fibers Include the following Cotton Silk Wool Mohair Cashmere

Natural Fibers Include the following Cotton Silk Wool Mohair Cashmere

Man-Made – Regenerated Fibers Regenerated fibers are cellulose that is spun through a spinneret

Man-Made – Regenerated Fibers Regenerated fibers are cellulose that is spun through a spinneret Includes: Rayon Acetate Triacetate

Synthetic Fibers These are generated polymer chains Includes: Nylon Polyester Acrylic

Synthetic Fibers These are generated polymer chains Includes: Nylon Polyester Acrylic

Cotton Made exclusively of cellulose Has a high degree of polymerization and crystallization Look

Cotton Made exclusively of cellulose Has a high degree of polymerization and crystallization Look like flattened ribbons that are twisted. (microscopically)

Silk Silk is a protein fiber Made by silk worms Fiber is double stranded.

Silk Silk is a protein fiber Made by silk worms Fiber is double stranded. Light weight but keeps people warm.

Wool Obtained from sheep, goats, rabbits Readily absorb water but the fibers are not

Wool Obtained from sheep, goats, rabbits Readily absorb water but the fibers are not hollow Microscopically, looks like scaly corkscrews.

Mohair From goats Type of wool

Mohair From goats Type of wool

Cashmere From goats Type of wool Comes from the soft undercoat of goats

Cashmere From goats Type of wool Comes from the soft undercoat of goats

Burn Tests Burn Test

Burn Tests Burn Test

Fiber Comparisons

Fiber Comparisons

Rayon Manufactured regenerated cellulose fiber. Fibers are smooth and glasslike rods. Doesn’t wrinkle

Rayon Manufactured regenerated cellulose fiber. Fibers are smooth and glasslike rods. Doesn’t wrinkle

Acetate Derived from reacting wood pulp (cellulose) with acetic acid. After the acetate is

Acetate Derived from reacting wood pulp (cellulose) with acetic acid. After the acetate is formed, it is spun through spinnerets. Microscopically, has grooves. Used in cigarette filters.

Triacetate Cellulose mixed with acetic acid and acetate anhydride. Used in garments where pleat

Triacetate Cellulose mixed with acetic acid and acetate anhydride. Used in garments where pleat retention is important

Nylon Man made polymer of polyamides.

Nylon Man made polymer of polyamides.

Polyester Derived from petroleum

Polyester Derived from petroleum

Acrylic Made from petroleum Fiber is dog bone shaped.

Acrylic Made from petroleum Fiber is dog bone shaped.

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