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Novelty yarns or complex yarns are yarns with special (fancy) effects introduced during spinning or plying. One example is slub yarns, yarn with thick or thin sections alternating regularly or irregularly. In a similar manner, creating deliberate unevenness, additions or injections of neps or metallic or synthetic fibers (along with natural ...
The cross-section of a fiber has an effect on the appearance, hand, drape, flexibility, and moisture wicking properties. [3] The cross sectional shape or form of the fibers specifies their texture. Numerous physical characteristics such as hand, bulkiness, and luster are associated with cross sectional shape. [ 2 ]
An ultra-fine, 14.6-micron Merino fleece.. A micron is the measurement used to express the diameter of wool fibre. Fine wool fibers have a low micron value. Fibre diameter is the most important characteristic of wool in determining its value.
Filling or weft yarns usually have fewer twists per inch because strength is not as important as with warp yarns, and highly twisted yarns are, in general, stronger. Warp yarns have to be stronger so that they can withstand the tension of the loom. Filament fibers, such as silk, or many synthetics, need only be twisted slightly to create a yarn.
Physical properties are those that can be assessed with the naked eye or a microscope. A textile testing laboratory determines the mechanical properties of different fibers. [6] There are various test methods that help in identifying the fibers, Fiber identification and examination includes microscopic analysis, burning tests, and chemical testing.
The S numbers originated in England, [4] where the worsted spinning process was invented and arose from the worsted yarn count system for stating the fineness of yarn. The worsted count (also known as the Bradford count) was the number of 560-yard (510 m) lengths (hanks) of worsted yarn that 1 pound (0.45 kg) of wool yields. [5]
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