tt 105 final fucking exam Flashcards
Household and Institutional textiles are all textiles used in home that except Interior Textiles
True
Towels and bed-linens are examples of fabricated textile products in the “Household and
Institutional Textiles” market.
True
Paper and leather products are technically not textiles.
true
Textile fibers have a length at least 100 times its diameter.
true
Interstices are holes or void space within a textile fabric which contain air, and can act as an
insulative layer.
true
Supply chain management implies a sequence of events getting desired products to
customers
true
Fibers can be classified as natural vs. manufactured fibers
true
Supply chain management involves forecasting, purchasing, scheduling, financing,
distribution and service.
true
Natural fibers can be cellulosic (cotton), protein (wool) or mineral (asbestos)
true
Manufactured fibers can be called “synthetic” fibers if produced from synthetic polymers.
true
Rayon and acetate are cellulosic fibers whereas nylon, aramid (Kevlar®), polypropylene and
polyester are synthetic fibers.
true
Cashmere, mohair, qiviut, angora and tussah silk are all examples of natural protein fibers
harvested from animals.
true
Flax, industrial hemp, jute and ramie are all examples of natural cellulosic fibers harvested
from plants
true
Fiber properties often depend upon their structure (morphology), temperature, humidity and
light exposure.
true
Mechanical properties depend on polymer type, morphology of fiber
true
Applying force (i.e., tension or stress) to a yarn causes it to increase in lengt
true
Elongation to break measures how much a material stretches before it breaks
true
Hydrophobic fibers, such as polypropylene and polyester, absorb little moisture whereas
hydrophilic fibers, such as cotton and viscose rayon absorb moisture readily.
true
. Small slope in the stress-strain curve means easy to stretch
true
Swimsuit or hosiery should use a fiber with high elongation
true
Yield point is where stress-strain curve begins to flatten
true
Tenacity refers to stress at which fiber breaks
true
Natural fibers can readily be identified using microscopy.
true
Wool has 13-18% of moisture regain
true