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Textiles: Yarn Processing
Chapter 10 in Textiles by Sara J. Kadolph (11th edition)
34
Other
Undergraduate 3
10/17/2010

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Term
Air-jet spinning
Definition
a process of producing a spun yarn by using carefully controlled, rapidly moving jets of air
Term
Blend
Definition
a fabric that consists of two or more generically different fiber types
Term
Blended-filament yarn
Definition
a yarn of unlike filaments of different deniers or generic types blended together
Term
Bulk-continuous-filament yarn
Definition
(BCF) made of textured or crimped filament fibers
Term
Bulk yarn
Definition
A yarn that has been processed to have greater covering power or apparent volume as compared with a conventional yarn
Term
Bulky yarn
Definition
a yarn formed from inherently bulky fibers (see also Textured yarn)
Term
Carded yarn
Definition
a slightly irregular spun yarn with short-staple fibers and protruding fiber ends
Term
Carding
Definition
one step in yarn spinning.  Staple fibers are drawn together in a somewhat parallel arrangement to form a very weak rope of fibers called carded sliver
Term
Combed yarn
Definition
a uniform spun yarn with long-staple fibers and few protruding fiber ends
Term
Combination
Definition
refers to a fabric of two or more generically different fiber types in which ply yarns consist of strands of each generic type
Term
Combing
Definition
an additional step in the production of smooth, fine, uniform spun yarns made of long-staple fibers
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
Filament yarn
Definition
a yarn made from filament fibers; smooth or bulky types are possible
Term
High-Bulk yarn
Definition
a bulk yarn with little or no stretch
Term
Mixture
Definition
a fiber blend.  Yarns of one generic type are present in one fabric area (i.e., the warp) and yarns of another generic type are present in another fabric area (i.e., the filling)
Term
Monofilament yarns
Definition
a filament yarn consisting of a single fiber
Term
Open-end rotor spinning
Definition
a spun yarn process that eliminates roving and twisting
Term
Opening
Definition
an initial step in the production of spun yarns that loosen fibers from bale form and cleans and blends the fibers
Term
Ring or conventional spinning
Definition
a process for producing spun yarns.  A series of operations removes fibers from a bale, removes debris, makes the fibers parallel, draws them into a fine strand, and adds twist to hold them together
Term
Roving
Definition
a step in the production of some spun yarns.  The drawn sliver is reduced in size, fibers are made more parallel, and a small amount of twist is inserted.
Term
Sliver
Definition
a very weak rope of fibers produced in intermediate steps in the production of spun yarns
Term
Smooth-filament yarn
Definition
a yarn of filament fibers that have not been crimped or textured
Term
Spinning
Definition
refers to the process of producing a yarn from staple fibers; it also refers to the production of a fiber by extruding a solution through tiny holes in a spinneret.
Term
Spun yarn
Definition
a continuous strand of staple fibers held together by some mechanism
Term
Stretch yarn
Definition
a yarn with high degrees of potential elastic stretch and yarn curl
Term
Tape yarn
Definition
an inexpensive yarn produced from extruded polymer film by extrusion of the split-fiber method
Term
Textured or bulked yarn
Definition
another term for a textured-bulk-filament yarn; a yarn with notably greater apparent volume than a similar conventional yarn
Term
Texturing
Definition
refers to the process of adding bulk to yarns or modifying fabric surfaces
Term
Throwing
Definition
refers to the process of twisting silk filaments into a yarn or to the process of twisting and texturing synthetic-fiber-filament yarns
Term
Tow-to-top system
Definition
refers to a process of converting filament fibers to staple fibers by cutting or break stretching
Term
Tow-to-yarn system
Definition
refers to a process of converting filament fibers to staple fibers by break stretching, drawing the fibers, adding twist, and winding the yarn on a bobbin
Term
Woolen yarn
Definition
a slightly irregular bulky wool or wool-like yarn that has not been combed
Term
Worsted yarn
Definition
a smooth, straight, and uniform wool or wool-like yarn that has been processed to remove short fibers and make the remaining fibers more parallel
Term
Yarn
Definition
an assemblage of fibers twisted or laid together so as to form a continuous strand that can be made into a textile fabric
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