Low Melt Nylon 66 Staple Fiber, 4D × 51mm
Low Melt Nylon 66 Staple Fiber (4D × 51mm) is a bicomponent thermoplastic fiber designed for thermal bonding applications. The "Low Melt" designation indicates that the fiber has a lower melting point compared to standard Nylon 66, allowing it to act as an adhesive binder when heat is applied, without completely melting or losing its fibrous structure.
Key Specifications:
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Fineness: 4 Denier (4D) – provides good coverage and bonding strength
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Cut Length: 51mm – suitable for nonwoven processing lines (carding, airlay)
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Material: Nylon 66 copolymer – offers excellent thermal stability, chemical resistance, and mechanical strength
Key Properties
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Activation temperature: Typically 120°C – 160°C (lower than standard Nylon 66’s ~255°C melting point)
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Bonding strength: High adhesion to various substrates
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Processing compatibility:
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Can be blended with other fibers (polyester, cotton, glass fiber, aramid)
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Compatible with thermal calendering, hot air through-bonding, and oven bonding
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Soft hand-feel: Maintains flexibility while providing structural integrity
- Denier: 1.2D~80D
- Cut length: 38mm~120mm
- Color: White/black
- Raw material: 100% nylon (PA6, PA66 chips), high hardness
- Shape: trilobal/round/hollow/flat
- Luster: bright/dull/semi-dull
- Delivery: 2-3 weeks after order confirmation
- Packing: 200kg bales (115×95×75 cm) in weaving bags
- MOQ: 8 ton
- Monthly capacity: 2000 ton
- Exceptionally strong and elastic
- Abrasion resistant and lustrous
- Easy to wash and maintain
- Resistant to oil and many chemicals
- Available in pre-colored or dyed options
- Low moisture absorbency
- Creates smooth, soft, durable fabrics
| 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 |
Applications
This fiber is widely used in nonwoven manufacturing where form stability, high strength, and reliable thermal bonding are required.
Automotive Industry
The fiber is used for headliners, trunk liners, interior carpet backing scrim, and insulation pads. Its heat-activated bonding properties create durable, dimensionally stable components that withstand the demanding conditions inside vehicles.
Filtration
In filtration applications, it serves as a bonding agent for multi-layer filter media and pleated cartridge filters, ensuring structural integrity while maintaining open pores for efficient airflow.
Home and Industrial Textiles
The fiber is found in bonded interlinings for garments, furniture padding for seat cushions and armrests, as well as mattress edge reinforcement components. It provides a good balance of softness and structural support.
Construction Materials
Acoustic panels and insulation batts benefit from this fiber as it can partially replace chemical binders such as glass fiber or rock wool binders, offering a lower-emission alternative.
Specialty Nonwovens
Additional applications include abrasive backing paper and geotextiles used for erosion control and drainage systems.
Production Line
- OEM services and custom labeling available
- 24/7 customer support
- 2-hour response time for inquiries
- Comprehensive quality control throughout production
- Competitive pricing with volume discounts
- Fast delivery (15 days after 30% advance payment)
Get in Touch
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