FDY

Why Choose Us?

Quality products

The company has Germany barmag high-speed loading machine, TMT Japan imported winding machine, specializing in the production of various specifications of porous fine denier and differentiated microfiber products.

Wide range of products

Microdenier fiber; High elastic series: High elastic ultra-high elastic, PTT, PBT can be with function or color; Imitation cotton series; Regeneration series; Cationic luminous series; Functional yarn; PLA fiber; Polyester color silk, etc., can accept a variety of differentiated fiber customization.

Reliable service

We with the best cooperation team, in line with the common development with customers, create value faith, constantly improve the quality of their products, gain customers trust and love.

Professional team

We have professional R&D team, with many internationally renowned enterprises discuss for research, development and application in environmental protection and functional yarn and fabric.

Fully Drawn Yarn (FDY)

In fully drawn yarns, the crystalline domains in the polymer are significantly oriented along the yarn axis as a result of the drawing or stretching process. This makes FDY yarn stronger as compared with POY yarn. FDY is also known as polyester filament yarn (PSF) or spin drawn yarn (SDY).

Advantages of FDY Yarn

High Strength

FDY yarn is known for its high tensile strength, providing durability and resistance to breakage.

Excellent Uniformity

The fully drawn process ensures uniformity in the yarn's structure, resulting in consistent and predictable performance.

Quick Drying

FDY yarn dries quickly, making it suitable for applications where moisture resistance is essential.

Abrasion Resistance

The yarn exhibits good abrasion resistance, making it suitable for applications where wear and tear are concerns.

Low Moisture Absorption

Polypropylene inherently has low moisture absorption, and FDY yarn maintains this property. It is less prone to water absorption compared to some other synthetic fibers.

Chemical Resistance

FDY yarn is resistant to many chemicals, providing protection against damage from exposure to various substances.

Lightweight

Polypropylene is a lightweight material, and FDY yarn maintains this characteristic, making it suitable for applications where weight is a critical factor.

Low Thermal Conductivity

Polypropylene has low thermal conductivity, providing insulation properties that may be advantageous in certain applications.

Technical Specifications of FDY Yarn

Denier
Denier refers to the thickness or fineness of the yarn. FDY yarn is available in various denier ranges to meet specific requirements.
Tenacity
Tenacity measures the strength of the yarn. FDY yarn exhibits high tenacity, indicating its ability to withstand tension.
Elongation at Break
Elongation at break is the percentage increase in length of the yarn before it breaks under tension. FDY yarn typically has low elongation at break.
Shrinkage
FDY yarn may have minimal shrinkage due to the fully drawn manufacturing process.
Melting Point
The melting point of polypropylene is important for understanding its behavior under heat. FDY yarn typically has a melt point within the general range of polypropylene.
Color Options
FDY yarn is available in various colors, and it can be easily dyed to achieve specific color requirements.
Texture and Surface Finish
FDY yarn can have different textures and surface finishes depending on the desired characteristics of the final product.

Applications of FDY Yarns

Due to such a unique combination of strength, durability, and lightweight characteristics. Here are some of the common applications of these yarns:
Sports Gear
Sports gear, such as tennis rackets, fishing lines, and parachute cords, can be produced with the help of FDY yarns. These equipment are required to go through high levels of stress and strain. Due to the high strength and lightweight properties of this innovative yarn, they can be the ideal choice for enhancing performance and contributing to the safety of the products.
Industrial Fabrics
Industries like construction, agriculture, and manufacturing require fabrics that can withstand harsh conditions. Here, these slim, tough yarns can be used to make products like conveyor belts, safety harnesses, and heavy-duty tarpaulins that are tough and lightweight.
Automotive Industry
The automotive industry requires strong, light, and aesthetically pleasing yarns. The FDY yarns possess all of these qualities to create superior seat upholstery, safety belts, airbags, and other components that require a balance of strength and comfort. The threads maintain their shine and beauty for extended periods.
Sewing Thread
FDY yarns are crucial for sewing thread manufacturing as they enhance its strength and durability. In poly poly core spun sewing threads, these yarns, typically below 100 deniers, form both the core and the outer layers, ensuring robustness, resistance to wear and tear, and colour fastness.
Coated Fabrics
Coated fabrics are often used for demanding applications outdoor gear, tents, and industrial covers. When FDY yarns are used as the base material in coated fabrics, they provide the fabric with the strength needed to withstand tearing, tension, and abrasion.
They also contribute to the fabric's flexibility, lightweight design, and resistance to chemicals and UV exposure, ensuring longevity and performance in various industries, including construction, transportation, and outdoor equipment.

Properties of FDY Yarn

In fully drawn yarn, the possibility of further elongation is low and is about 40% or less. Thus FDY is more stable than POY yarn. Due to the high degree of orientation of polymeric chains, the degree of crystallinity is high compared with POY and can be up to 40 %. FDY is also available in semi-dull and bright lusters. Most filament cross section is circular, however, it can also be trilobal or triangular which has brighter luster and is used in making curtains.
In fully drawn yarns, the crystalline domains in the polymer are significantly oriented along the yarn axis as a result of the drawing or stretching process. This makes FDY yarn stronger as compared with POY yarn. FDY is also known as polyester filament yarn (PSF) or spin drawn yarn (SDY).
Due to high crystallinity, the shrinkage in the FDY is very low compared with POY and is usually up to 12 %. FDY yarn is used in making high strength textiles and fabrics such as home textiles, sportswear, automotive and other technical textiles. FDY is also used in sewing and embroidery threads. Mostly FDY is used as flat yarn and thus to manufacture non-textured fabrics. FDY is also used in yarns, curtains, crepe and lace fabrics.

Differences between POY and FDY

Partially Oriented Yarn	Fully Drawn Yarn
PARTIALLY ORIENTED YARN (POY) is incompletely stretched filaments with an orientation degree between unoriented filaments and drawn filaments obtained by high-speed spinning. Compared with undrawn yarn, it has a certain degree of orientation and good stability, but cannot be used for textile processing.	FULL DRAWN YARN is full stretch yarn. The synthetic fiber filament is further obtained by spinning and drawing. The fiber has been fully stretched and can be directly used for textile processing.
POY can be stretched longer, because POY is a pre-oriented yarn; it is not fully stretched, and the remaining elongation must be above 80%.	FDY is a fully oriented yarn; it can be stretched less. The remaining elongation is generally below 40%, which is relatively stable.
POY is cold drawn yarn having higher elongation. The process includes the natural orientation (partial) of molecular chains. It is produced in a semi-oriented molecular structure.	FDY is hot drawn yarn having lower elongation. The process includes the drawing / heat set and orientation of molecular chains. It is a highly drawn polyester filament / fully oriented filament.
POY is generally used to make textured yarn that can be also used in warping for weaving and warp knitting of fabrics. It is preferred due to softer feel , better drape, higher recovery, wrinkle resistant, long lasting prints and colours.	FDY is a highly compatible yarn that can be easily knitted or woven with other yarn to produce a variety of fabrics. It is preferred for use in warping after twisting or sizing due to higher shrinkage and grain effects.
It is available in many Polymer lusters including Semi-Dull, Bright, Full Dull, Super Bright and CDP. It is available in raw white & dope dyed colours. It is available in different cross sections as per end use, like circular, trilobal & other different shapes as per end use.	It is available in many Polymer lusters including Semi-Dull, Bright & CDP. It is available in raw white, dope dyed colours & package dyed. It is available in different cross sections as per end use like circular, trilobal, etc.
POY is given to the texturizing company for the texturizing process. It is often used as a special yarn for drawn false twisted textured yarn (DTY) or as draw twisted (DT) yarn.	FDY mainly focuses on quality fabric and avoids texturizing. It is also used after Twisting and is often used as a special yarn for drawn false twisted textured yarn (DTY) or as draw twisted (DT) yarn.
It is applicable in ladies dress materials, shirts, suits, sarees, knitwears, home textile, automotive materials, sports wear, etc.	It is applicable in fabrication of clothes, curtains, high-end sportswear, home furnishing, embroidery, sewing threads, etc.
POY has approximately 2 to 5% crystallinity.	FDY has around 35 to 40% crystallinity.
POY is stable for short durations and can be stored for only 6-8 months.	FDY has a stable structure, and it remains stable throughout its life span.
Due to the very high amorphous and low crystallinity region, POY has very high shrinkage, which ranges from 50-70%.	FDY has shrinkage in the range of 6-12%.
A process like DTY creates bulk in POY.	FDY is a flat yarn

Role of FDY Yarn in Textile Industry

FDY play a crucial role in the textile industry by providing the properties required for manufacturing high-quality fabrics across various sectors. Here's why they are preferred:

Diverse Application

FDY yarn can be used for more than just everyday clothes. They are also used in various sectors. For instance, fully drawn yarn is utilised in high-performance sportswear, which enhances the fabric's ability to withstand intense physical activity and retain its form during rigorous workouts.
Whereas high tenacity yarn can be used to craft seatbelts and airbags in the automotive industry, ensuring their ability to withstand high levels of force during potential collisions.

Elevated Product Quality

By integrating these yarns into fabric production, manufacturers can improve the quality and durability of the end products. This means that the fabrics can withstand various demanding conditions, such as frequent washing, exposure to sunlight, or heavy use, without losing their strength or integrity.
In the case of outdoor furniture made with polyester-based textiles, the incorporation of these yarns ensures that the fabric remains resistant to fading, tearing, and other forms of wear and tear caused by outdoor elements like UV rays, rain, and wind. This has not only led to greater customer satisfaction but has also fostered trust in the reliability of polyester-based textiles, encouraging consumers to opt for these products for their long-lasting and resilient qualities.

FDY Yarn: Fully Drawn Yarns

FDY also know as FOY is a type of highly drawn polyester filament yarns that can be used to produce high-strength fabrics and textiles. The fabrics and textiles made from bright FDY have a bright luster. FDY is typically used to produce fabrics and textiles for high-end undergarments, high-end sportswear and sports shoes, and home furnishings.
FOY/ FDY is produced by a process similar to POY manufacturing except that the yarn is produced at even higher spinning speeds coupled with intermediate drawing integrated in the process itself.
FDY can be used directly in weaving and knitting, especially for warp weaving.

Our Factory

Suzhou Junhui Textile Co., Ltd
The company is founded on JUN. 2015, it is committed to develop and sell differential yarn: Microfine yarn, Recycle yarn, Flame retardant yarn, Cationic dyeing yarn and Knitting fabric products. We have professional R&D team, with many internationally renowned enterprises discuss for research, development and application in environmental protection and functional yarn and fabric. The products are over 90% for export, we have broad customer base, and establish a cooperative relationship with the customer located in 36 countries. As a responsibility, the brand service oriented textile enterprise, we has always been convinced that the only customer success is our foothold. Therefore, we with the best cooperation team, in line with the common development with customers, create value faith, constantly improve the quality of their products, gain customers trust and love.

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FAQ

Q: What is the full form of FDY in textile?

A: Fully drawn yarn (FDY ) is a type of highly drawn polyester filament yarn that can be used to produce high-strength fabrics and textiles. FDY is mainly used as weft or weaves in making fabrics. This yarn is used as the first material of twisted threads and is also used directly in knitting.

Q: What is the difference between polyester and polypropylene yarn?

A: Polyester is a synthetic fiber made from repeating units of polyethylene, while polypropylene is a polymer made from propylene oxide and other organic compounds. Polyester has a smooth texture while polypropylene has a rougher texture.

Q: What is the melting point of FDY yarn?

A: FDY yarns have a softening point in the region of 150°C and a melting point at 160-170°C. At low temperatures of -70°C or lower, PP fibers remain their excellent flexibility. At high temperature (below 120°C).

Q: What is the moisture regain of FDY yarn?

A: The water absorption of FDY yarn is about 0.3% after 24 hours immersion in water, and thus its regain – the amount of water absorbed in a humid atmosphere – is virtually nil (0.05% at 65% RH, 21 °C.)

Q: What are the benefits of FDY yarn?

A: Lightweight – FDY yarns are lightweight, which makes them easy to handle and transport. Chemical resistance – FDY yarns are resistant to many chemicals, making them suitable for use in harsh environments. Low moisture absorption – FDY yarns have low moisture absorption, which means they are resistant to mold and mildew.

Q: What is the full form of FDY yarn?

A: Fully drawn yarn. Fully drawn yarn (FDY) is produced by a process similiar to POY manufacturing except that the yarn is produced at higher spinning speeds coupled with intermediate drawing integrated in the process itself.

Q: How is polypropylene yarn made?

A: Polypropylene thread/fibers are manufactured from polypropylene chips, which are, in turn, manufactured into making Air-Intermingled yarn and Twisted yard. The yarns are very cost-effective and versatile and have a range of physical characteristics that makes it ideal for a wide range of applications.

Q: Are FDY yarns suitable for outdoor use?

A: Yes, FDY yarns are suitable for outdoor use. They are weather-resistant and easy to clean, making them ideal for outdoor furniture and carpets.

Q: What is the manufacturing process of polypropylene yarn?

A: The process includes the steps of spinning an undrawn yarn using a spinnerette, and winding the undrawn yarn on a bobbin. Subsequently the undrawn yarn is unwound so that no twist is imparted to the yarn and the yarn is then drawn between godet rollers through a convection oven, the drawn yarn being wound on a bobbin.

Q: What are the three main types of FDY yarn?

A: There are three main types of yarn:
● The long, continuous strands that make up filament yarn are twisted together to make the yarn. Woven fabrics, like dress shirts and suits, often use filament yarn.
● Staple yarn is made of short fibres that don't connect to each other. Knitted clothes, like sweaters and T-shirts, are often made with staple yarn.
● A blend of thread and core fibres is used to make blended yarn. Blended yarn is often used in materials like jeans and sportswear that need to be both strong and soft.

Q: What is FDY in yarn?

Q: What is the difference between FDY and POY?

A: FDY is hot drawn yarn having lower elongation. The process includes the drawing / heat set and orientation of molecular chains. It is a highly drawn polyester filament / fully oriented filament. POY is generally used to make textured yarn that can be also used in warping for weaving and warp knitting of fabrics.

Q: What does FDY stand for?

A: FDY also know as FOY is a type of highly drawn polyester filament yarns that can be used to produce high-strength fabrics and textiles.

Q: What is FDY yarn?

A: Polyester FDY is the abbreviation for polyester fully drawn yarn. It is also know as polyester filament yarn (PFY) or spin draw yarn (SDY). FDY is mainly used as weft or weaves in making fabrics. FDY can be knitted or woven with any other filament yarn to get fabric of various different varieties.

Q: What is the full form of POY and FDY?

A: The terms partially oriented yarn (POY), fully drawn yarn (FDY) and drawn and textured yarn (DTY) are commonly used for polyester filament yarns. However, any synthetic fiber yarn can be either partially oriented (POY), fully drawn (FDY) or drawn and textured (DTY).

Q: What are the properties of FDY yarn?

A: FDY yarn is the lightest fiber of common chemical fibers. It is almost not hygroscopic, but has good wicking capacity, high strength, dimensional stability of the fabric, good wear elasticity, and good chemical stability. However, the thermal stability is poor, not resistant to sunlight, easy to age and brittle.

Q: What is the manufacturing process of FDY yarn?

A: The production process of FDY yarn is similar to that of partially oriented yarn, except that the process itself combines stretching and heat setting to produce yarn at a higher spinning speed. This PP FDY spinning machine achieves stability through orientation and crystallization.

Q: Is FDY yarn recyclable?

A: While not readily biodegradable, FDY yarn can be recycled under specific conditions, contributing to sustainable practices.

Q: What is the future of FDY yarn?

A: The global FDY yarn market stood at approximately 32 million tonnes in 2022 and is anticipated to grow at a CAGR of 4.10% during the forecast period until 2032.

Q: Do you have to block FDY yarn?

A: Not always. Blocking might be optional when using an acrylic or FDY yarn that's already soft. If your stitches are quite even and you're happy with the look of your fabric, skip it and go yarn shopping instead!

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