Chapter 3

Chapter 3 - Chapter 3 Fiber Properties property a quality...

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Unformatted text preview: Chapter 3 Fiber Properties property a quality or characteristic of a textile fiber each fiber type exhibits many properties that are unique by each fiber type determines how a fiber type behaves in use may be inherent or can be changed In the US, we use yd,lb,oz to explain. Internationally, we use the metric measurement system Physical Properties We can view these properties both with the naked eye or microscope Physically properties affect appearance and behavior of yarns & fabrics color natural fibers vary in color (example: black and white sheep) manufactured fibers are bright or white shape and contour cross-section view round, oval, u-shaped, triangular (looks like bamboo or lay inn clumps) Can have a hollow center multilobal Round Kidney Look in book! longitudinal form view smooth rough, uneven striations (dark lines) or scales (overlapping scales on wool fiber) luster amount of light reflected by a fiber affected by cross-sectional shape flat direct light back to eye multilobal shaped fibers bounce light in all directions (more lustrous) manufactured fibers can create any lobe shape (this affects the luster) can be delustered by titanium dioxide covering power ability of a fabric to obscure an object visual aspect ability of a fiber to hide what is placed beneath it the more transparent, the less covering power Geometric aspect amount of fiber required to make a fabric cover an area the more fiber, the more covering power the more fiber surface area, the more covering power this makes it less likely to show soil crimp a wavy undulating structure increases resilience, bulk, warmth, and cohesiveness cohesiveness ability of fibers to cling together when making yarns manufactured fibers can be textured Manufacturers do not exit the spinneret with a crimp. It must be textured after. length staple fibers inches, centimeters cotton, wool filament fibers yards, meters silk, manufactured affects hand the feel of the fabric If manufacturers do not like the smoothness (hand) of filament fibers, it can be textured density the ratio of a mass of a substance to a unit of volume grams per cubic centimeter specific gravity the density of a fiber in relation to the density of an equal volume of water at a...
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Chapter 3 - Chapter 3 Fiber Properties property a quality...

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