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FASH 290 Exam 2
Chapters 6-9
122
Other
Undergraduate 2
02/19/2014

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Term
antibacterial or antimicrobial fibers
Definition
inhibits the growth of microbes or destroys microbes, odor and fiber damage on textiles; incorporated in spinning solution prior to extrusion or incorporated during spinning; modified acrylic, acetate, polyester, nylon, and olefin are permanent and will not wash out
Term
antistatic fibers
Definition
a fiber that has been modified to reduce static buildup; if a fiber as an excess of electrons, it is negatively charged and it is attracted to something that is positively charged; because many synthetic fibers have low water absorbency, static charges build up rapidly but dissipate slowly during dry weather; this gives durable protection becasue the fiber is made wettable by incorporating an antistatic compound-a chemical conductor-as an integral part of the fiber; added to the fiber-polymer raw material so that it is evenly distributed throughout the fiber
Term
bicomponent-bigeneric fiber
Definition
refer to bicomponent fibers whose two polymers are from two different generic classes
Term
bicomponent fiber
Definition
fibers made of two polymers that are chemically different, physically different, or both
Term
binder staple
Definition
a semidull, crimped fiber (polyester) with a very low melting point so that it bonds with other fibers when exposed to heat above its melting point; develops a thermoplastic bond with other fibers under heat and pressure and is used in fiberwebs
Term
bright fibers
Definition
a basic fiber in its original luster, without delusterant; reflects light from its smooth, round surface
Term
cross-dyeable or dye-affinity fibers
Definition
fibers made by incorporating dye-accepting chemicals into the molecular strucutre; far easier to dye than their parent fibers
Term
deluster
Definition
a type of fiber additive; titanium dioxide-a white pigmnet-is added to the spinning solution before the fiber is extruded
Term
electrospinning
Definition
a technique used to produce nanofibers in which the fiber is forced through a tiny spinneret opening into an electric field
Term
extrusion
Definition
the process of forcing or pumping the dope or spinning solution through the openings in a spinneret to form a fiber
Term
fiber additives
Definition
compounds added to manufactured fiber dope to improve appearance or performance
Term
fiber modification
Definition
changes in the parent manufactured fiber to improve performance relative to a specific end use
Term
fiber spinning
Definition
the process of producing a manufactured fiber from a solution
Term
filament fiber
Definition
fibers that are extremely long (length measured in miles or kilometers) or yarns made of these fibers; spun from spinnerets with 350 holes or less
Term
filament tow
Definition
an untwisted rope of thousands of filament fibers; is made by combining the fibers from many spinnerets, each of which may have thousands of holes; is crimped and converted into staple by cutting or breaking to the desired length
Term
filament yarn
Definition
a yarn made from filament fibers; smooth or bulky types are possible; when fibers are grouped together and slightly twisted
Term
flame-resistant fibers or finish
Definition
any finish or fiber modification that is designed to reduce the flammability of a textile; produced by changing the polymer structure or by adding flame-retardant compounds to the spinning solution; aramid, novoloid, modacrylic, glass, PBI, saran, sulfar, vinyon are inherently this
Term
generic name
Definition
refers to fibers with similar chemical composition and are approved by the Federal Trade Commission; ex: polyester, lyocell, nylon
Term
high-tenacity fibers
Definition
fibers that have been modified in the spinning process to increase fiber strength
Term
hollow or multicellular fibers
Definition
fibers that contain air space in their interiors; imitate the air cells of animal hair, which provide insulation in cold weather, and the hollow feathers of ducks, which produce buoyancy in water; made by adding gas-forming compounds to the spinning solution, by injecting air as the fiber is forming, or by modifying the shape of the spinneret holes
Term
low-elongation modifications
Definition
used in blends with weaker fibers to increase fabric strength and abrasion resistance; as in cotton/polyester blends; results from changing the balance of tenacity and extension; high tenacity fibers have this
Term
low-pilling fibers
Definition
have been engineered to have a lower flex life by reducing the molecular weight of the polymer chains (decreasing the number of mers in a chain); when flex abrasion is reduced, the fiber pills break off almost as soon as they are formed and the fabric retains its smooth appearance
Term
macrofiber
Definition
fibers with a denier great than 1.0
Term
manufactured fiber
Definition
fibers made from chemical compounds produced in manufacturing facilities; the material's original form is not recognizable as a fiber
Term

mass pigmentation or solution dyeing

 

 

(dope-dyed, spun-dyed, producer-colored)

Definition

describes the addition of colored pigments to polymer solutions prior to fiber extrusion/to the spinning solution

 

*gel dyeing-if the color is added before the fiber hardens

Term
melt
Definition
for some synthetic polymers, such as nylon and polyester, the polymer is formed, cooled, and broken into small pieces or chips; the chips are heated until they from this which is used to form the fiber
Term
microfiber
Definition
fibers with deniers of less than 1.0; most range from 0.5 to 0.8 denier per filament (dpf)
Term
mixed-denier filament bundling
Definition
combines fibers of several denier sizes, such as microfibers (0.5 dpf) with macro or regular denier (2.0 dpf) fibers, in one yarn; microfibers contribute to buttery hand, macrofibers or regular denier fibers contribute to drape, bounce, durability (also shrink slightly)
Term
nanofiber
Definition
a fiber with a cross section measuring less than 1,000 nm (nanometers); human hair is 80,000 nm
Term

parent fiber

 

(regular, basic, conventional, first-generation fiber)

Definition
the simplest form of a manufactured fiber that has not been modified in any way; often sold as commodity fiber by generic name only, without benefit of a trade name
Term
shape memory fibers
Definition
a type of smart textile; fibers with the capacity to change shape in a predefined way-react to stimuli in the environment
Term
shin-gosen
Definition
an ultrafine fiber, often polyester, with modified cross sections and occasional fiber irregularities; is produced in Japan; means new synthetic fiber
Term
spinneret
Definition
the thimblelike nozzle made of platinum or stainless steel through which the solution is extruded to form a fiber; very costly
Term
spinning solution or dope
Definition
refers to the thick chemical solution made out of the raw materials dissolved in liquid chemicals
Term
sunlight resistance or light resistance
Definition
a finish or fiber modification to minimize the degradative effects of sunlight on fiber or dye; stablizers such as nitrogenous compounds may be added to the dope to create this; window treatments
Term
thick-and-thin fibers
Definition
vary in diameter throughout their length so that in some areas they are thinner and in other areas they are thicker; create fabrics with a texture like duppioni silk or linen; thick nubby areas dye a deeper color to create an interesting tone-on-tone color effects
Term
trade names
Definition
a term used to identify a company's products; companies' names for fiber and may be used in promotion and marketing; ex: Dacron (polyester), Tencel (lyocell), Supplex (nylon)
Term
trilobal shape
Definition
refers to a three-sided fiber cross-sectional shape that is designed to imitate silk
Term
ultrafine fiber
Definition
refers to a fiber of less than 0.3 denier per filament
Term
whiteners, brighteners or fluorescent whitening agent
Definition
a compound used to mask the natural color of fibers, yellowing from aging, or other colors resulting from soil; additive is optical bleach or fluorescent dye that reflects more blue light from the fabric and masks yellowing; permanent in washing or dry cleaning; eliminate need for bleaching
Term
acetate
Definition
a manufactured fiber in which the fiber-forming substance is cellulose acetate;
Term
acetone test
Definition
a solubility test used to identify acetate
Term
azlon
Definition
a fiber made from regenerated protein
Term
bamboo
Definition
a fiber made from regenerated bamboo pulp
Term
fume or pollution fading
Definition
a color-retention problem; colors alter when exposed to gases, fumes, or other atmospheric pollutants/fumes; solution dyeing corrected problem
Term
heat-sensitive fiber
Definition
the ability to soften, melt, or shrink when subjected to heat
Term
high-wet-modulus rayon
Definition
a modification of rayon with better performance characteristics
Term
lyocell
Definition
a manufactured fiber composed of solvent-spun cellulose
Term
manufactured regenerated fiber
Definition
fibers produced in fiber form from naturally occurring polymers
Term
rayon
Definition
a manufactured fiber composed of regenerated cellulose in which substituents have replaced not more than 15 percent of the hydrogens of the hydroxyl groups; from wood or bamboo pulp
Term
seaweed fiber
Definition
a fiber regenerated from seaweed
Term
striations
Definition
the lengthwise lines present on several manufactured fibers, such as rayon
Term
thermoplastic
Definition
describes a fiber's sensitivity to heat; fibers that melt or glaze at relatively low temperatures
Term
triacetate
Definition
a manufactured fiber in which the fiber-forming substance is cellulose acetate in which not less than 92 percent of the hydroxyl groups are acetylated
Term
viscose rayon
Definition
the most common type of rayon
Term
wet spinning
Definition
a fiber-forming process in which the polymer is dissolved in a solvent and the solution is extruded into a chemical bath
Term
acrylic
Definition
a manufactured fiber in which the fiber-forming substance is any long-chain synthetic polymer composed of at least 85 percent by weight acrylonitrile units
Term
compressional resiliency
Definition
describes the ability of a fabric or pile to return to its original thickness after compression
Term
copolymer
Definition
refers to a polymer composed of more than one type of mer
Term
drawing
Definition
describes a fiber-finishing step in which a manufactured fiber is elongated after spinning to alter the molecular arrangement within the fiber, increasing crystallinity and orientation and resulting in a change in specific performance properties
Term
dry spinning
Definition
a fiber-forming process in which a solution of polymer dissolved in a solvent is extruded; the fiber coagulates as the solvent evaporates
Term
elasterell-p
Definition
a generic subclass of a stretch polyester
Term
gel spinning
Definition
a spinning method in which the dissolved polyethylene polymer forms a viscous gel in the solvent, followed by extrusion through the spinneret, solvent extraction, and fiber drawing
Term
glazing
Definition
a flattening of the cross section of heat sensitive fibers or yarns resulting from exposure to high temperatures
Term
graft polymer
Definition
Term
heat setting
Definition
describes the process of producing fiber, yarn, or fabric stability through the use of heat
Term
high-tenacity fibers
Definition
fibers that have been modified in the spinning process to increase fiber strength
Term
homopolymer
Definition
refers to a polymer composed of a single type of mer
Term
lastol
Definition
a generic subclass of an elastic olefin
Term
low-pilling fibers
Definition
have been engineered to have a lower flex life, thus decreasing pill formation
Term
melt spinning
Definition
the process of producing fibers by melting polymer chips and extruding the melt (the molten polymer) in fiber form; coagulation occurs by cooling
Term
moisture vapor transport rate (MVTR)
Definition
measures how quickly moisture vapor moves from the side of the fabric next to the body to the fabric's exterior side
Term
nylon
Definition
a manufactured fiber in which the fiber-forming substance is any long-chain synthetic polyamide in which less than 85 percent of the amide linkages are attached directly to two aromatic rings
Term
olefin
Definition
a manufactured fiber in which the fiber-forming substace is any long-chain synthetic polymer composed of at least 85 percent by weight of ethylene, propylene, or other olefin units except amorphous (noncrystalline) polyolefins qualifying as rubber
Term
oleophilic
Definition
refers to fibers that have a high affinity or attraction to oil
Term
pilling
Definition
the formation of tiny balls of fiber ends and lint on the surface of the fabric
Term
polyamides
Definition
a generic term for polymers containing an amide group and is a term used for nylon in some countries
Term
polyester
Definition
a manufactured fiber in which the fiber-forming substance is any long-chain synthetic polymer composed of at least 85 percent by weight of an ester of a substituted aromatic carboxylic acid, including but not restricted to substituted terephthalate units or substituted hydroxybenzoate units
Term
polyethylene
Definition
a type of olefin made from polymerizing ethylene
Term
polypropylene
Definition
a type of olefin made from polymerizing propylene
Term
manufactured synthetic fibers, chemical fibers, noncellulosic manufactured fibers
Definition
fibers produced from synthetic polymers made form basic raw materials
Term
wet spinning
Definition
a fiber-forming process in which the polymer is dissolved in a solvent and the solution is extruded into a chemical bath
Term
aramid
Definition
a manufactured fiber in which the fiber-forming substance is a long-chain synthetic polyamide in which at least 85 percent of the amide linkages are attached directly to two aromatic rings
Term
carbon
Definition
a fiber made of at least 96 percent pure carbon
Term
ceramic
Definition
a fiber composed of metal oxide, metal carbide, metal nitride, or other mixtures
Term
comfort stretch
Definition
refers to the ability of a fiber or fabric to elongate slightly as the body moves and to recover a significant portion of that elongation when the stretching force is removed
Term
elastane
Definition
Term
elastoester
Definition
a manufactured fiber in which the fiber-forming substance is composed of at least 50 percent by weight of aliphatic polyether and at least 35 percent by weight of polyester
Term
elastomer
Definition
a natural or synthetic polymer that, at room temperature, can be stretched repeatedly to at least twice its original length and that, after removal of the tensile load, will immediately and forcibly return to approximately its original length
Term
emulsion spinning
Definition
a fiber-extrusion method in which polymerization and extrusion occur simultaneously
Term
fluoropolymer
Definition
a manufactured fiber containing at least 95 percent of a long-chain polymer synthesized from aliphatic fluorocarbon polymer
Term
glass
Definition
a manufactured fiber in which the fiber-forming substance is glass
Term
Gore-Tex
Definition
a poromeric multiplex fabric combining fluoropolymer film with fabric to produce a water-impermeable but comfortable fabric; produced by W.L. Gore & Associates
Term
grin-through
Definition
occurs when some elastomeric fibers break and the broken ends or loops of broken fibers appear on the fabric's surface; in pile and tufted fabrics, it describes where the base structure shows through the pile surface
Term
lastol
Definition
a generic subclass of an elastic olefin
Term
lastrile
Definition
a synthetic rubber in which the fiber-forming substance is a copolymer of acrylonitrile and a diene composed of not more than 50 percent but at least 10 percent by weight of acrylonitrile units
Term
melamine
Definition
a manufactured fiber in which the fiber-forming substance is a synthetic polymer composed of at least 50 percent by weight of a cross-linked melamine polymer
Term
metallic fibers
Definition
manufactured fibers composed of metal, plastic-coated metal, metal-coated plastic, or a core completely covered by metal
Term
modacrylic
Definition
a manufactured fiber in which the fiber-forming substance is any long-chain synthetic polymer composed of less than 85 percent but at least 35 percent by weight acrylonitrile units except when the polymer qualifies as rubber
Term
neoprene
Definition
describes a composite fabric combining a film of polychloroprene with a woven, knitted, or fiberweb fabric
Term
novoloid
Definition
a manufactured fiber in which the fiber-forming substance contains at least 35 percent by weight of cross-linked novolac
Term
PBI
Definition
a manufactured fiber in which the fiber-forming substance is a long-chain aromatic polymer having recurring imidazole groups as an integral part of the polymer chain
Term
polyhenylene benzobisoxazole (PBO)
Definition
a special-use fiber made of polyphenylene benzobisoxazole
Term
polyimide (PI or PEI)
Definition
a special-use fiber made from polyetherimide
Term
PLA
Definition
a renewable fiber made from fermented cornstarch and melt-spun
Term
power stretch
Definition
refers to the ability of a fiber or fabric to exhibit high retractive forces that mold, support, or shape the body
Term
rubber
Definition
a manufactured fiber in which the fiber-forming substance is comprised of natural or synthetic rubber
Term
saran
Definition
a manufactured fiber in which the fiber-forming substance is any long-chain synthetic polymer composed of at least 80 percent by weight of vinylidene chloride units
Term
spandex
Definition
a manufactured fiber in which the fiber-forming substance is a long-chain synthetic polymer consisting of at least 85 percent of a segmented polyurethane
Term
stainless steel
Definition
a type of metallic fiber
Term
sulfar
Definition
a manufactured fiber in which the fiber-forming substance is a long-chain synthetic polysulfide in which at least 85 percent of the sulfide linkages are attached directly to two aromatic rings
Term
vinal
Definition
a manufactured fiber in which the fiber-forming substance is any long-chain synthetic polymer composed of at least 50 percent by weight of vinyl alcohol unites and any one or more of the various acetal units is at least 85 percent by weight of the fiber
Term
vinyon
Definition
a manufactured fiber in which the fiber-forming substance is any long-chain synthetic polymer composed of at least 85 percent by weight of vinyl chloride units
Term
raw material
Definition
a natural prodcut such as cellulose or protein, or is a synthetic polymer
Term
microdenier
Definition
less than 1 dpf (denier per filament)
Term
denier
Definition
weight in grams for 9000 meters of fiber
Term
dpf
Definition
yarn size by the number of filaments
Term
trilobal shape
Definition
widely used in nylon and polyester; produces fabric with silklike hand, subtle opacity, soil-hiding capacity, built-in bulk wihtout weight, heightened wicking action , silklike sheen and color, crush resistance in heavy deniers, and good textured crimp
Term
high-tenacity fibers
Definition
controlled stretching of fibers immediately after extrusion produces these; is increased by drawing or stretching the fiber to align or orient the molecules and strengthen the intermolecular forces and/or by chemical modification of the fiber polymer to increase the degree of polymerization
Term
cupra rayon
Definition
rayon made using the cuprammonium process under the trade name Bemberg; has a more silklike hand and luster; may be found in smaller deniers
Term
viscose rayon
Definition
regular rayon produced in the US
Term
disperse dyes
Definition
dyes developed especially for acetate and triacetate
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