Nylon 66 High Tenacity Filament Yarn 840D/140F
Product Introduction
1. Core Definition
This is a high-tenacity industrial filament yarn made from Nylon 66
(polyhexamethylene adipamide). Due to its higher amide bond density
and crystallinity, Nylon 66 offers superior heat resistance,
strength, and dimensional stability compared to Nylon 6, making it
the ideal choice for high-end industrial applications.
2. Key Specification Breakdown
Nylon 66: The core material, featuring a high melting
point (~260°C), excellent heat resistance, anti-creep properties,
and chemical resistance, with particularly stable performance under
prolonged load.
High Tenacity: Through specialized polymer formulation and
spinning processes, the yarn achieves extremely high breaking
tenacity and toughness, typically reaching 8.5-9.5 g/d, far
exceeding conventional nylon yarns.
840D/140F: Core Technical Parameters
840D: Denotes a filament fineness of 840 Denier,
a heavy-denier industrial specification that provides
high load-bearing capacity and abrasion resistance, suitable for
heavy-duty scenarios.
140F: Indicates that each single yarn comprises 140
filaments, balancing high strength with a degree of flexibility and
coverage.
BR (Bright): No delusterant is added, giving the yarn high
luster and a smoother surface, which benefits processing
smoothness.
3. Key Features Summary
Ultra-High Strength & Toughness: Suitable for high-load,
high-impact scenarios.
Excellent Heat Resistance: Maintains stable performance in
elevated temperature environments.
Superior Abrasion & Fatigue Resistance: Resistant to
breakage or deformation under long-term use.
Good Chemical Stability: Offers certain resistance to oils and
solvents.
Smooth Surface: Reduces equipment wear and improves processing
efficiency.
Technology Data for Nylon 66 Fiber
USA invista Nylon 66 fiber 1.5D*38mm 100% virgin semi-dull
Test description | unit | Target | Tolerances |
Effective titre | dtex | 1.67 | 1.65-1.78 |
Tenacity | cN/dtex | 3.63 | 3.50-4.20 |
Elongation | CV(%) | 73 | 70-90 |
cut length | mm | 39.5 | 36-44 |
Defect | mg/100g | 1.7 | 1.7-2.1 |
No. of Crimp | 1/cm | 5 | 5-6 |
Melting Point | ℃ | 223 | 220-230 |
Dampening rate | % | 4.5 | 4.4-4.5 |
Moisture | % | 4.3 | 4.0-4.5 |
Shrinkage 98℃ water | % | 1.8 | ≤2.5 |
Oil finish | % | 0.10 | 0.10-0.20 |
Silicone oil | % | 0.20 | ＜0.10 |
Application
1. Industrial Webbing & Ropes
Safety Equipment: Fall protection safety ropes, firefighting
ropes, climbing ropes.
Lifting Slings: Replaces steel cables, offering lightweight
and impact-resistant alternatives.
Military & Emergency Equipment: Tactical ropes, rescue
cables.
2. Tire & Rubber Reinforcement
Radial Tire Cord Fabric: Serves as the tire's skeleton
material, providing high-strength support to enhance durability and
load capacity.
Industrial Hose Reinforcement: Reinforcement skeleton for
high-pressure hoses and hydraulic tubes.
3. Technical Textiles & Military Materials
Ballistic & Protective Materials: Base material for fiber
composites in bulletproof vests and armored vehicles.
Military Equipment Fabrics: Reinforcement layers for
backpacks, tents, and protective covers.
4. High-End Outdoor & Sports Gear
Premium Fishing Lines & Nets: Seawater-resistant,
high-strength, low-elongation.
Outdoor Gear Webbing: Load-bearing straps for backpacks,
connecting straps for carabiners.
5. Industrial Sewing Threads
Heavy-Duty Leather Stitching: High-strength sewing for
footwear, luggage, and saddlery.
Automotive Interior Stitching Threads: Abrasion and UV resistant.
Certificate
ISO9001, INTERTEK, CO
Our Production Line As Below
Our Service
1. OEM service offered and buyer label offered.
2. 24 hours online service.
3. Enquiry will be replied within 2 hours.
4. Quality controlling while manufacturing
Quality checking before packing
Quality assuring before shipping
5. Low factory price upon quality guaranteed.
6. Regular customers share discount prices.
7. No matter you give me sample order or as our distributor, we
will give you best service.
8. Very fast delivery within 15 days after receipt 30% advance or
original L/C at sight.
FAQ
1.What does your company produce?
Nylon fiber and Specialty fibers
2. What’s the market for your products?
Our fibers are exported to many countries, such as India, Pakistan,
Russia, Ukraine, Spain, Italy, Mexico, Ecuador, Argentina, Albania,
Brazil etc.
3. How does your factory do regarding quality control?
Quality is priority. We attach great importance on quality to keep
long-term business with each customer.
