ROBINLYNNES PRODUCTIONS
ROBINLYNNES PRODUCTIONS
@robinlynnes-productions
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  Http://robinlynnesproductions.com   Joined May 26, 2017
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POY is used in texturizing to make textured yarn

ChanJane
@chanjane
6 months ago
3 posts
Nylon has excellent resistance to hydrocarbons (gasoline, kerosene and diesel fuel), oils, cleaning solutions and alkalis but nylon is attacked by oxidizing agents, organic acids, hot mineral acids and aromatic alcohols. Polyester Embroidery Thread also dissolves with partial decomposition in concentrated solutions of hydrochloric, sulphuric, and nitric acids and is soluble in formic acids.
Another common process application is braider yarns in wire and cable. Sometimes twist is not desired in wire and cable applications because there is more coverage from the yarn when it is flat. You may want twist in your yarn for wire and cable to reduce frictional properties between materials by allowing a “rolling action” on surfaces.
Twist in yarn will also offer supply packages with higher density and higher integrity which will allow them to withstand higher centrifugal forces during certain braiding and wrapping operations – allow higher hose and cable production rates.
Polyester is resistant to acids, oxidizers such as hydrogen peroxide and most solvents. Polyester has excellent resistance to hydrocarbon fuels, oils and Lubricants, however it is attacked by strong alkalis such as concentrated solutions of sodium hydroxide (lye or caustic soda), calcium hydroxide (lime, mortar), ammonia, trisodium phosphate or sodium carbonate (washing soda, soda ash).
What is Partially Oriented Yarn (POY)?
Partially oriented yarn is produced from the melting and extrusion (melt spinning) of the polyester chip or flake. During the spinning process the filaments are stretched or drawn as much as five times their original size to orient the polymer to meet the desired evenness, strength, shrinkage, and elongation properties.
So the term partially Polyester FDY refers to multi-filament that is only partially stretched. POY is generally lower tenacity and less uniform than fully oriented yarn (FOY). POY is mainly used in texturizing to make textured yarn and can also be used in draw warping for weaving and warp knitting of fabrics.
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