What is ACY in Yarn ? The definition of ACY (air covered yarn).

textile.technology blogger basic by Hasan

What is ACY? The definition of ACY (air covered yarn)

ACY (Air Spandex Covered Yarn) consists of spandex and DTY.

Air covering is a process of combining two or more yarns to create unique yarns with new combination of characteristics.
It can be divided into Nylon ACY and Polyester ACY.
The most common specifications are 2070, 3070, 4070, 2075, 3075, 4075.


What can they make for? The application of ACY (air covered yarn).

They are comfortable to wear and can modify their elasticity to fit different end-products.
Air Covered Yarns can be used to produce fabrics of varying styles, hands and functions, and can be designed for woven as well as knitted  fabrics according to their properties.
Air Covered Yarn also can be used for knitting, hand knitting, weaving, sewing, mostly in socks, underwears, swimwear, clothes, ect.

The following products are made of ACY Air covered yarn.

Seamless underwear
Knitting underwear

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Nylon FDY in Yarn

textile.technology blogger basic by Hasan

Nylon Fully Drawn Yarn (FDY)

Nylon poy is used as row material for manufacturing Nylon FDY. For manufacturing fdy one stage high speed process is used. After stretches, the post processing craft through which enhance intensity of nylon fdy by macroviscosity slice spinning. FDY is the entire stretch silk.

The main use of nylon FDY is for stocking, knitting, weaving fabrics, weaving looms and hocovering machines. Also it can be knitted or woven with any other filament yarn to get fabric of various different varieties. It is mainly used in Home Furnishing Fabrics, Fashion Fabrics, Denim, Terry Towel and other. Nylon FDY is available in bright, semi dull and full dull FDY.

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POY in Yarn

textile.technology blogger basic by Hasan

Nylon Partially Oriented Yarn (POY)

Nylon Partially Oriented Yarn, commonly known as Nylon POY is the primary form of Nylon yarn. It is also known as Nylon Pre-Oriented Yarn. It is the first form of yarn made directly by spinning Nylon Chips. Nylon POY is mainly used for manufacturing textured yarn. Nylon POY can be available in two luster: Semi Dull & Bright. Dope Dyed technology is used for making of colored POY. Nylon POY is mainly available in packed in cone as per customer requirement

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Polyester Filament Yarns | Polyester DTY

Polyester Drawn Textured Yarn (DTY)

Drawn Textured Yarn (DTY) yarn is obtained when Polyester POY is simultaneously twisted & drawn. DTY yarn is mainly used in weaving & knitting of fabrics for making clothes, home furnishings, seat covers, bags and many other uses. DTY yarn can be in Semi Dull or Bright or Trilobal Bright depending upon the type of sections of filaments.

Technical Properties of DTY yarn can be molded in several ways to make the yarn suitable for its vast uses. Different heating techniques can be used to make the yarn set for specific use - 1 Heater DTY is normally woolly & more stretchable as compared to DTY with 2 Heater. Also the DTY yarn can be made with several combinations of Intermingle points - it can be Non-Intermingle (NIM) having 0 - 10 knots/meter or Semi-Intermingle (SIM) having 40 - 50 knots/meter or High-Intermingle (HIM) having 100 - 120 knots/meter. These knots are not actually the knots tied when two threads are broken but they are the tangle knots created by heating pressure. These Intermingle yarns, also known as Interlaced yarn, are the replacement for lightly twisted yarns. Polyester DTY yarn can also be twisted to high twists like 1500 TPM or 4000 TPM (twist per meter). Such twisted yarn can also be heat-set to make the yarn permanently thermo-set the twist. Catonic DTY is another variant of Polyester DTY that is mainly used in blankets. Catonic DTY is made from Catonic PET Chips.

Polyester DTY yarn can also be obtained in various colors by the dope dyed technology or by conventional dyeing. Dope dyed DTY is usually packed on paper bobbins whereas Raw White DTY that will be used for dyeing is loosely packed on perforated plastic tube so that all the yarn can be easily dyed when the bobbin is dipped in color. DTY is mainly produced in large quantity in China, India, Taiwan, Indonesia & Malaysia and is exported world-wide

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