Polyester Monofilament FDY 30d/3f 40d/2f for Air-Layer Fabrics

Product Description

Polyester Monofilament yarn for Air-Layer Fabrics

Polyester Monofilament has emerged as a valuable material in the production of air-layer fabrics, leveraging its high strength, dimensional stability, and cost-effectiveness. Its unique properties enable the creation of air-layer fabrics with enhanced thermal insulation, breathability, and durability, making it widely used in sportswear, outdoor gear, and home textiles.

Core Advantages  

Air-layer fabrics require materials that can maintain structural integrity while providing thermal insulation and breathability. Polyester Monofilament meets these demands through the following key advantages:

1. Exceptional Structural SupportWith uniform diameters typically ranging from 0.1mm to 0.5mm, polyester monofilament offers high longitudinal strength and stiffness, preventing deformation. When used as a supporting layer in air-layer fabrics, it maintains the integrity of the middle air pocket, avoiding collapse after washing or prolonged use. This structural stability ensures long-lasting thermal insulation performance.
2. Chemical and Washing ResistancePolyester monofilament exhibits excellent resistance to acids, alkalis, and hydrolysis, and it is non-hygroscopic. Unlike natural fibers, it retains its shape and strength even after multiple washes, making it ideal for frequently cleaned items such as sportswear, children's clothing, and home textiles.
3. Controllable Breathability and Moisture ManagementThe smooth surface and regular morphology of monofilaments create uniform micro-pores in the fabric structure. These pores trap air for thermal insulation while allowing moisture vapor transmission, achieving a balance between warmth and breathability-a critical requirement for high-performance air-layer fabrics.
4. Lightweight and Cost-EffectiveCompared to alternative supporting materials like nylon monofilament, polyester monofilament has a lower density, reducing overall fabric weight. Additionally, its cost-effectiveness supports large-scale production of mid-to-high-end air-layer fabrics without compromising quality.

Common Application Forms of Polyester Monofilament in Air-Layer Fabrics

Polyester monofilament is integrated into air-layer fabrics through various configurations tailored to specific functional requirements. The following table outlines typical applications:

Application Form	Process Characteristics	Typical Applications
Monofilament Interlayer Support	Adopts a "double-sided knit/woven layer + middle monofilament layer" structure. Polyester monofilaments are arranged in parallel or woven into a mesh between the two layers, forming stable air pockets.	Outdoor down jacket liners, thermal sportswear, baby sleeping bags
Monofilament-Short Fiber Blend	Combines polyester monofilament with polyester staple fibers or cotton. The monofilament provides structural support, while short fibers enhance softness, balancing stability and skin-friendliness.	Home blankets, spring/autumn casual jackets, car seat fabrics
High-Elasticity Monofilament Air Layer	Uses modified polyester monofilament (incorporated with elastic components) woven via warp or weft knitting to create elastic air layers. The monofilament imparts stretch recovery while maintaining air pocket structure.	Sports compression wear, yoga pants, thermal underwear

Typical Product Case and Performance

Take "polyester monofilament air-layer sportswear" as an example, its performance advantages over conventional air-layer fabrics are significant:

• Thermal Insulation: Supported by monofilaments, the air layer (2mm-5mm thick) achieves a 30%-50% higher static thermal retention rate than unsupported air-layer fabrics, suitable for 10ºC-15ºC outdoor environments.
• Durability: After 50 standard wash cycles, the fabric retains over 85% of its original bulkiness, with no monofilament breakage or air pocket collapse.
• Breathability: The fabric exhibits an air permeability of 1500-2000g/(m2*24h), enabling rapid moisture evacuation during physical activity to prevent stuffiness.

Usage and Maintenance Guidelines

1. Washing Temperature: While polyester monofilament is heat-resistant, it is recommended to wash at temperatures below 40ºC to protect soft outer layers (e.g., cotton or staple fiber layers). High-temperature drying should be avoided.
2. Avoid Sharp Friction: Although durable, monofilaments may break when rubbed against sharp objects (e.g., zippers, metal buttons), compromising the air-layer structure. Wash separately or use a laundry bag.
3. Fabric Weight Selection: Choose appropriate weights based on application: 200-300g/m2 for lightweight daily wear, and 350-500g/m2 for heavy-duty outdoor thermal insulation.

Reference Images 

1. Fabric Structure Close-Up: Cross-sectional view showing the "double-sided soft layer + middle polyester monofilament support layer," clearly illustrating the air pockets formed by monofilaments.
2. Product Application Images: Finished products such as sportswear, outdoor thermal liners, and baby sleeping bags, highlighting bulkiness and structural stability.
3. Process Detail Images: Demonstrating monofilament arrangement (parallel or mesh) during weaving, emphasizing its supporting function.

 

Company introduction:
           
We are a  manufacturer in China specialized in producing as below:
 
1. Recycled Polyester and Nylon Yarns in FDY, POY DTY and ITY. Passed GRS and Oeko-tex certificate. 
2. Polyester Dope dyed black SD and Bright (round/ trilobal section both), which making label, stain cloth, ribbon etc.
3. Micro or fine denier polyester yarn, 15D 20D 30D In white and black and dope dyed colors
4. Cationic CDP and ECDP can dying in 80-90 degree.
5. PLA COLORED YARNS
6. Antimony- free yarns
7. Functional yarns like Flame-retardant yarn/ Cool yarn/Warm yarn, Anti-bacterial yarns in polyester and Nylon.       
8. Elastic yarns like SPH, CEY, PBT,PTT, T-300-Imtate T400

ECO-FRIENDLY YARNS	CUSTOMIZED YARNS
1. RECYCLED FDY/DTY/POY/ITY	1. High-strength Monofilament/Mother yarn
2. Biodegradable/PLA/Low Melting	2. Organza(DTY Mono)
3. Antimony-Free /Graphene /	3. PE FDY
4. Easy Dyeing Cationic/Polyester	4. Semi dull /Bright/Cationic/Full        Dull/Round/Profiled yarn
5. Dope Dyed Colors POY/FDY/DTY
FUNCTIONAL YARNS	ELASTIC YARNS
1. Flame-retardant	1. SPH
2. Antibacterial/Anti UV	2. CEY
3. Cool Jade/keep Warm	3. T300/T400
4. Aerogel	4. PBT/PTT FDY

We Can do customized special yarns
pls contact us for details,Hope can have chance to support you.
Thanks and best regards,
Ms Kero Wang 
 

 

Product Description