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Custom ECDP Flat FDY Yarn
  • ECDP Flat FDY Yarn
  • ECDP Flat FDY Yarn
PRODUCT

ECDP Flat FDY Yarn

Feature: 
1. 85 degree deep dyeing 
2. Soft touch and good luster
3. Good color fastness and deep color 
4. Good moisture regain 
5. High dyeing take up
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All counts for choice:
FDY  30D/36F  40D/36F  75D/72F  150D/144F

Applications: 
Sportswear  Underwear  knitting  weaving 

Other:
Shanghai seaport
Special produce by order

How FDY Differs from DTY
FDY is fully drawn during production, resulting in straight, parallel filaments with no crimp or bulk. This gives FDY fabrics a flatter, smoother surface than DTY and makes it the preferred choice for fine woven fabrics, smooth knit constructions, and applications where surface clarity and luster take priority over stretch or volume.

Key Features
85-Degree Deep Dyeing
Achieves deep, even color at 85 degrees Celsius under atmospheric pressure. Compatible with spandex-blended constructions and reduces energy and equipment demands in the dye house compared to standard polyester FDY processing.

Soft Touch and Good Luster
The flat filament alignment produces a smooth, consistent surface that reflects light evenly. Luster is clean and natural rather than synthetic, with a hand feel that suits skin-contact applications.

Good Color Fastness and Deep Color
Elevated dye uptake affinity produces saturated, stable color. Finished fabrics maintain appearance through repeated washing and extended wear without significant fading or shade shift.

Good Moisture Regain
Better moisture absorption and release than standard polyester FDY, contributing to wearer comfort in activewear and underwear end uses where breathability is a functional requirement.

High Dyeing Take-Up
More dye is absorbed and fixed per cycle, reducing residual dye in effluent and lowering dye consumption per kilogram processed — a measurable advantage for operations managing environmental compliance costs.

Technical Specifications
Parameter Details
Material Modified Polyester (ECDP)
Yarn Type Flat Fully Drawn Yarn (FDY)
Surface Profile Flat, non-textured, parallel filament
Dyeing Temperature 85 degrees Celsius (atmospheric pressure)
Color Fastness Excellent (wash, light, perspiration)
Luster Semi-bright / Bright
Moisture Regain Improved vs. standard polyester FDY
Production Method Special production by order
Export Port Shanghai Seaport, China

Available Counts

Count Filaments Recommended Use
30D / 36F 36F Sheer wovens, fine underwear fabric, lightweight knit base layers
40D / 36F 36F Intimate apparel, smooth knits, lightweight woven linings
75D / 72F 72F Sportswear outer fabric, mid-weight knits, structured wovens
150D / 144F 144F Performance weaves, outerwear fabric, heavier knitted constructions
About
GC FIBER
GC FIBER has been a professional custom ECDP Flat FDY Yarn Manufacturers and ECDP Flat FDY Yarn Company in China since 2006 years. We are devoted to researching, developing, producing, and selling special and functional eco-friendly textile products.
Our products include Biodegradable Yarn, Low Melting Yarn, ECDP Yarn, Anti Static Yarn, HDPE Yarn, Bio-component Yarn, and Polyester Filament Yarn.
We are always interested in cooperating with our guests to develop new material.
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Ecdp Yarn Industry knowledge

ECDP flat FDY yarn, as a high-end synthetic fiber product in the modern textile industry, stands out among many textile materials with its excellent physical properties and aesthetic value, and has become the preferred material for many high-end textiles and fashion apparel.
Deep dyeing technology: The 85-degree deep dyeing process used by ECDP flat FDY yarn is an innovative dyeing technology that can make the dye molecules more effectively penetrate and fix inside the fiber at a relatively high temperature, thereby achieving a more saturated and uniform color performance. This deep dyeing not only enhances the vividness and three-dimensional sense of the color, but also ensures that the color can still maintain its original brightness and stability after multiple washings, meeting the high-end market's stringent requirements for color durability.
Feel and gloss: Thanks to its unique fiber structure design and production process, ECDP flat FDY yarn feels extremely soft, comfortable to wear and non-irritating. At the same time, its surface is smooth and can reflect a delicate and natural luster. Whether under natural light or artificial light, it can show a charming visual effect, adding a touch of nobility and elegance to clothing and home decoration.
Color fastness and durability: Through advanced post-processing technology and strict quality control, ECDP flat FDY yarn shows excellent color fastness. Whether it is sun exposure, friction or washing, it can effectively resist color fading and keep clothes as new for a long time. This improvement in color fastness not only extends the service life of the product, but also reduces the environmental burden caused by frequent changes of clothes.
Moisture regain and comfort: Good moisture regain is one of the important indicators to measure the comfort of fiber materials. ECDP flat FDY yarn has suitable moisture absorption and breathability, and can automatically adjust according to environmental changes to keep the human body dry and comfortable. It is especially suitable for wearing in humid or changeable weather conditions, which effectively improves the wearer's comfort experience.
We offer ECDP Flat FDY Yarn in a variety of specifications for you to choose from. FDY 30D/36F is thin, light and soft, suitable for making delicate underwear and sportswear, bringing a close-fitting and comfortable feeling. FDY 40D/36F has moderate strength and is suitable for knitwear and light outerwear, maintaining good breathability and having a certain warmth retention effect. FDY 75D/72F has good stiffness and abrasion resistance, making it an ideal choice for making sportswear and outdoor clothing, ensuring that you stay in the best condition during activities. FDY 150D/144F is high-strength and durable, suitable for weaving a variety of strong and durable textiles, such as industrial fabrics or heavy sports equipment.
High dyeing absorption rate: High dyeing absorption rate means that dyes can be used more efficiently during the dyeing process, reducing dye waste and environmental pollution, which is in line with the concept of modern green production. At the same time, this also ensures the uniformity and consistency of dyeing, so that each batch of products can meet high quality standards.
ECDP flat FDY yarn not only meets the demand of modern textile industry for high-quality fiber materials, but also brings consumers more beautiful, comfortable and durable textiles with its excellent dyeing performance, excellent feel and gloss, stable color fastness, good moisture regain and efficient dyeing absorption rate. Whether in the field of high-end clothing customization, home decoration or creative design, ECDP flat FDY yarn has won wide recognition and favor in the market with its unique charm. Our products also include biodegradable yarn, low melting point yarn, ECDP yarn, anti-static yarn, high-density polyethylene yarn, bio-component yarn and polyester filament yarn.