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Textiles Quiz 2
Properties of Cellulosic Fibers and Last half of Serviceability Concepts Wkst
40
Other
Undergraduate 3
09/08/2011

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Term
Care
Definition
the treatment required to maintain the original appearance of the textile product during use, cleaning or storage
Term
Cost
Definition
affected by how a fiber is produced, the number and type of modifications and how it is marketed
Term
Environmental Impact
Definition
relates to the way the production, use, care, and disposal of a fiber or textile product affects the environment
Term
Natural Fibers
Definition
From plant, animal, or mineral wources

Cotton, wool, aesbestos (in insulation)
Term
Manufactured Fibers
Definition
manufactured from chemicals
Term
Generic Fiber Group
Definition
Groups of fibers w/ similar chemical composition (behave similarly)

Polyester, nylon, acrylic

Lycra- trade name for spandex
Term
What are the 2 Fiber Characteristics?
Definition
length and size
Term
Staple
Definition
short fibers measured in inches or centimeters

if there are little hairlike fibers sticking out from string, it is a staple fiber
Term
Filament
Definition
Long, continuous fibers meansured in miles of kiometers

silk
no small fibers stick out from the string (manufactured fibers)
Term
Filament Tow
Definition
When manufactured fibers are produced in large bundls (filament length) and crimped prior to cutting or breaking into staple fibers

Manufactured fibers
Term
Size is referring to the _____ of the fiber
Definition
diameter
Term
Denier
Definition
used to measure manufactured fibers

Clothing: 1-7 denier
Carpet: 15-27 denier

Large fibers: give crisp, rough, body and stiffness, more likely to sesist crushing
small fine fibers- softer and drape easier
Term
Micrometers
Definition
Userd to measure natural fibers
Term
What are the four ways to identifiy a fiber?
Definition
Visual Inspection
Burn Test
Microscopy
Solubility Tests
Term
Visual Inspection
Definition
done first, but appearnace and hand can't be used alone for identification
Term
Burn Test
Definition
used to identify a fiber's chemical composition, such as cellullose, protein, mineral, or synthetic
Term
Microscopy
Definition
Most useful for identification of natural fibers

wool-scales
Cotton- convolutions
Term
Solubility Tests
Definition
Two simple tests are the alkali test for wool and the acetone test for acetate

Put acetate fibers in acetone and it will dissolve it
Term
Cross-Sectional Shape
Definition
affect luster, bulk, body, texture,and hand (pg 37)
Term
Fiber Characteristic of the cross section of Manufactured Fibers
Definition
Controlled by shape of spinnarette and spinning method
Term
Fiber Characteristic of the cross-section of natural fibers
Definition
makes difference btw plant or animal

Wool=scales

affected by buildup as plant or animal grows
Term
Molectular Configuration: Polymerization
Definition
THe process of joining small molecules together to form a long chain or a polymer
Term
Molecular Configuration: amorphous
Definition
When molecular chains are arranged in a random or dissorganized fashion
Term
Molecular Configuration: Crystalline
Definition
Chains are parallel to another
Term
What are the properties of Natural Cellulosic Fibers?
Definition
GOod absocbency
good conductor of heat
ability to withstand high temperature
low resiliency
lacks loft; packs well into compact yarns
good conductor of electricity
heavy fibers
harmed by mineral acids
attacked by mildew
resistant to moths, but not crickets and silverfish
flammable
moderate resistance to sunlight
Term
Good absorbancy: importance to consumer
Definition
Cloth diapers, towels, comfortable summer clothing
Term
good conductor of heat: importance to customer
Definition
deeps cool/ body heat will pass through the fiber. God for summer clothing, sheer
Term
Ability to withstand high temperature: importance to consumer
Definition
Fabrics can be sterilized by boiling or auto-claving, good in hospitals, ironing
Term
Lacks loft; packs well into compact yarns: importance to consumer
Definition
cotton throw rugs don't bounce back (neg), pack well to get dense, high count fabrics, wind resistant fabrics
Term
Good conductor of electricity: importance to consumer
Definition
don't have static buildup
Term
heavy fibers: importance to consumer
Definition
heavier than comprible fibers, + winter, - summer
Term
Harmed by mineral acids: importance to consumer
Definition
remove acid stains quickly, fruit, fruitjuice
Term
attacked by mildew: Importance to consumer
Definition
little black spots appear, towels, dry and store in a dry area
Term
resistant to moths, but not crickets and silverfish: importance to consumer
Definition
Crickets and silverfish will attack it, dno't have to worry about moths
Term
Flammable: Importance to Consumer
Definition
Smells like burning paper, ignite quickly and burns freely, don't wear near open flame
Term
Moderate resistance to sunlight: importance to consumer
Definition
line so sun doesn't damage them
Term
How are cellulosic fibers classified?
Definition
according to the part of the plant they come from
Term
Which fibers are BAST fibers?
Definition
Come from the stem

flax, hemp, bamboo
Term
Which fibers are SEED fibers?
Definition
Comes from seed

Cotton, Jute, Coir
Term
Which fibers are LEAF fibers?
Definition
Comes from leaf

Pina, Abaca, Sisal
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