Details
Aramid Filament Yarn is a continuous, high-performance textile yarn composed of endless (filament) fibers spun from liquid-crystal polymer solutions of aromatic polyamides and coiled on bobbins. Unlike staple fibers (short lengths) or pulp (fibrillated), filament yarn consists of parallel, ultra-high molecular weight polymer chains in an extended chain configuration, giving it exceptional orientation and resulting in its legendary strength and thermal resistance. The "aramid" name derives from Aromatic Polyamide.
Aramid Filament Yarn is compatible with most types of polymer binders and can be utilized for ballistic rated body armor fabric and composites materials. The regular color is yellow.
What are the key features & characteristics of aramid filament yarn?
Good thermal stability: Does not melt. Exhibits high resistance to thermal degradation, with long-term service temperatures up to 180-250°C depending on type.
Outstanding strength-to-weight ratio: surpassing steel wire 5-6 times on an equal weight basis.
High tenacity and high modulus: Exhibits high resistance to stretching under load (high initial modulus), particularly in para-aramid types, providing excellent dimensional stability.
Resistance to heat, flame and chemicals: Self-extinguishing upon removal of flame source; high Limiting Oxygen Index (LOI). Good resistance to most organic solvents, fuels, and oils. Resistance to acids/bases varies significantly between meta and para types.
Good mechanical properties: High energy absorption capacity (area under stress-strain curve), making it excellent for ballistic and impact applications.
Environmentally friendly and harmless
Electrical Insulation: Good dielectric properties in dry conditions.
Specifications and Technical Data:
Product Code | Specification | Break Strength | Modulus | Elongation at Break | Finish | Moisture Regain | ||
Denier | g/d | N | GPa | g/d | % | % | % | |
AFY2070 | 200D | 23±1 | 46±2 | 100±5 | 790±40 | 2.5±0.5 | 0.8 | 7 |
400D | 23±1 | 80±3 | 100±5 | 780±40 | 2.7±0.5 | 0.8 | 7 | |
600D | 23±1 | 140±6 | 95±5 | 730±40 | 3.1±0.5 | 0.8 | 7 | |
840D | 23±1 | 201±8 | 90±8 | 700±65 | 3.1±0.5 | 0.8 | 7 | |
1000D | 23±1 | 225±8 | 90±8 | 700±65 | 3.2±0.5 | 0.8 | 7 | |
1500D | 23±1 | 330±15 | 85±8 | 670±65 | 3.2±0.5 | 0.8 | 7 | |
2250D | 23±1 | 500±20 | 80±10 | 650±70 | 3.6±0.5 | 0.8 | 7 | |
3000D | 23±1 | 690±25 | 75±10 | 600±70 | 3.6±0.5 | 0.8 | 7 | |
AFY2090 | 1500D | 22±1 | 330±20 | 115±8 | 900±50 | 2.6±0.5 | 0.8 | 5 |
3000D | 22±1 | 650±30 | 110±10 | 890±50 | 2.6±0.5 | 0.8 | 5 | |
6000D | 22±1 | 1300±60 | 108±10 | 870±50 | 2.6±0.5 | 0.8 | 5 | |
AFY2350 | 400D | 26±1 | 100±5 | 100±5 | 780±40 | 2.7±0.5 | 0.8 | 7 |
600D | 26±1 | 160±8 | 95±5 | 730±40 | 3.1±0.5 | 0.8 | 7 | |
840D | 26±1 | 220±10 | 90±8 | 700±65 | 3.1±0.5 | 0.8 | 7 | |
1000D | 26±1 | 240±12 | 90±8 | 700±65 | 3.2±0.5 | 0.8 | 7 | |
How many types of aramid filament yarn are there?
Para-Aramid Yarn (High Strength/High Modulus): Suitable for ballistic protection and high-strength composites. All products listed in the original document belong to this category.
Meta-Aramid Yarn (High Thermal/Flame Resistance): Focuses on high temperature resistance and flame retardancy, ideal for fire-fighting suits and high-temperature filter materials (customizable on demand).
What are the advantages and benefits of aramid filament yarn?
Weight Reduction: Replaces steel and glass in composites, leading to massive weight savings in transportation (fuel efficiency) and wearable gear (mobility).
Performance Under Extreme Conditions: Maintains properties in high-temperature environments where most fibers fail.
Multifunctional Protection: Offers a unique combination of mechanical (cut, ballistic, impact), thermal (flame, heat), and electrical protection.
Design Flexibility: Can be woven, knitted, braided, or used as a straight reinforcement in unidirectional (UD) tapes.
Long-Term Durability: Excellent resistance to fatigue, creep, and corrosion (unlike metals).
What fields are aramid yarn used in?
Aramid filament yarn can be primarily used in the following applications:
Ballistic Protection: Bulletproof vests, military helmet liners, e.g. fabrics woven with 200D yarn can withstand 9mm pistol rounds;
Aerospace & Military: Aircraft fuselage weight-reduction materials, missile shell winding layers—40% lighter than traditional glass fiber;
Automotive: High-end tire belts (e.g., Michelin PS4S), brake hoses in order to improve explosion resistance and durability;
Emerging Scenarios: Drone propellers, wind turbine blade edge protection strips.
Fire-fighting suits, welding protective clothing (withstands 260℃ without melting);
Optical fiber cable strength members (tensile-resistant, rodent-proof);
How to store and handle aramid filament yarn?
The aramid products should be kept in its original packaging in a dry, clean, and cold location. Best condition is at temperature from 15 to 35°C and Humidity between 35 to 65% to ensure safety，quality and performance. Aramid yarn should also be stored in opaque packaging or dark room. UV exposure may cause surface degradation and strength loss. Aramid yarn normally has a shelf life of 3-5 years. Aramid yarns can be shipped as general cargo; avoid heavy pressure, direct sunlight, and rain. Each spool is individually packaged (to prevent abrasion). appropriate personal protective equipment (PPE), such as dust mask, safety glasses, gloves and long sleeves should be used during handling.
FAQ
Question 1: Do you have black aramid yarns?
A: Yes, our aramid yarn is available in black upon special requirements regarding the appearance of the yarns. However, Para-aramid yarn is almost always used in its natural gold color. Post-dyeing is not commercially viable for most applications.
Question 2: Do you have any requirements on the MOQ?
A: Yes, we have for irregular specification. Please contact us and let us know the specification you need.
Question 3: Why does aramid yarn sometimes "fibrillate" or appear hairy during processing?
A: Due to its highly oriented, crystalline structure, the filament can split longitudinally under abrasive forces (rubbing against guides, tension). This is normal to some extent. Using ceramic or chrome-plated guides, proper tension, and low-friction paths minimizes excessive fibrillation.
Question 4: Is aramid yarn sensitive to acids and alkalis?
A: Para-aramid is sensitive to strong acids and concentrated alkalis. Meta-aramid has very good resistance to acids and weak alkalis but is attacked by strong alkalis. Always conduct compatibility tests for chemical exposure applications.
Question 5: What does "denier" or "dtex" mean, and how is yarn count chosen?
A: Denier = weight in grams of 9,000 meters of yarn. Dtex = weight in grams of 10,000 meters. Higher denier means thicker, heavier yarn. Choice depends on the textile process (fine weaving vs. heavy roving) and final product requirements (e.g., 1500 denier for ballistic fabric, 1000 denier for ropes, finer deniers for gloves).
Question 6: Can you do OEM for the aramid yarn with special dtex?
A: Yes, we can. We are always here to meet your requirements.
Question 7: What advantages does aramid yarn have over nylon and polyester filament yarn?
A: Aramid yarn is 5x stronger than nylon 66 and 3x stronger than polyester, with a high temperature resistance of 204℃ (nylon/polyester only 100-150℃), and it is non-melting and non-flammable.
Question 8: What is the aramid filament diameter?
A: Normally, it is around 12um
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