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Textile people always have many English acronyms! There are a lot of optical fiber oh ~ FDY , POY , DTY , ATY you know these? Can you tell?
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FDY full stretched wire
Full name: FULL DRAW YARN full stretched wire (Taiwan is called fully stretched wire). Synthetic filaments further produced by spin-drawing. The fiber is fully stretched and can be directly used for textile processing.
Conventional full-drawn yarns of polyester and nylon are chemical filaments. FDY fabric feels smooth and soft, and is often used to weave silk fabrics. Widely used in clothing and home textiles.
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POY pre-oriented yarn
Full name: PRE-ORIENTED YARN or PARTIALLY ORIENTED YARN . It refers to an incompletely drawn chemical fiber filament having a degree of orientation obtained by high-speed spinning between an unoriented filament and a drawn filament. Compared with unstretched wire, it has a certain degree of orientation, good stability, and is often used as a special wire for stretch false twisting ( DTY ).
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DTY tensile deformation yarn
Full Name: DRAW TEXTURED YARN . It is made by using POY as raw yarn, and it is made by stretching and false twisting. There is often some flexibility and contraction.
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ATY air textured yarn
Invented by DuPont, the United States, the principle is the use of air jet technology to air jet technology to process the tow to form an irregular twisted loop, so that the tow with a fluffy loop-like yarn. The textured yarn processed has both the properties of both filament and spun yarns, strong hair feeling, good hand feeling, and better coverage than the spun yarn.
use
Suitable for weaving, knitting, using air-deformation technology, can be made in the monofilament or multi-filament fineness, or core-like imitation wool, imitation hemp, imitation cotton, known as simulation yarn yarn, can also be processed Thickness yarns for carpets, sofas, and tapestries. Four types of strands can be discharged on a general air forming machine. The strands can be monofilaments or pre-oriented strands. Generally, the monofilament denier of a textured yarn is lower than 2.8 DTEX (2.5D) . In order to increase the number of yarns in the yarn, the oil content of the yarn is low.
Property
Air-textured yarns are superior to those before deformation in terms of bulkiness, breathability, gloss, and softness. The fineness is 10-15 % higher than that of the original yarn , the boiling water contraction is maintained at about 3 % , but the strength is reduced by 40 % because only a small part of the monofilament is stretched, but it bears the bearing capacity of the entire tow.
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Other chemical fiber filament types
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Birth yarn: undrawn yarn (conventional spinning) ( UDY ), semi-pre-oriented yarn (medium-speed spinning) ( MOY ), highly oriented yarn (hyper-high speed spinning) ( HOY )
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Stretched yarn: low-speed stretched yarn ( DY ), full- stranded (spinning one-step method) ( FOY )
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Deformed silk: conventional textured yarn ( DY )
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Identification method
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Pull it up
General POY can pull longer, FDY pull less. Because POY is a pre-oriented yarn, it is not fully stretched, and the remaining elongation is more than 50% ; while FDY is a fully-oriented yarn, and the remaining elongation is generally more than 40% , which is relatively stable.
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Appearance
DTY fibers are curled, POY and FDY fibers are straight, while FDY is stronger and POY strength is lower.
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