HS Code for Aramid tow

Aramid tow is classified under HS code 5501.11 as a synthetic filament tow of aramids (aromatic polyamides). Tow consists of a large number of continuous filaments of a length equal to the length of the tow, which are intended to be cut into staple fibers for spinning into yarn. To qualify under heading 5501, the tow must meet specific technical criteria: it must be a bundle of parallel filaments of a length exceeding 2 meters, the total weight of the bundle must be more than 20,000 decitex (2g/m), and the filaments must be drawn (stretched) so they cannot be stretched more than 100% of their length. Furthermore, the twist in the tow must be less than 5 turns per meter. Aramid fibers, such as Kevlar or Nomex, are known for their exceptional strength, high modulus, and heat resistance. This classification is specific to the "tow" form, which is an intermediate stage in textile manufacturing before the filaments are converted into staple fibers or specialized yarns.

Products Included

• Para-aramid filament tow
• Meta-aramid filament tow
• Kevlar tow for fiber processing
• Nomex tow for flame-resistant textiles
• Continuous aramid filament bundles for cutting

Common Misclassification

Aramid tow is often misclassified under HS code 5402, which covers synthetic filament yarn. The distinction lies in the decitex and the intended use; tow is a massive bundle of filaments (over 20,000 decitex) meant for further processing into staple fibers, whereas yarn is ready for weaving or knitting. It may also be confused with 5503.11 (aramid staple fibers), but 5503 applies only after the tow has been cut into short lengths.

FAQ

What is the HS code for aramid tow?

The HS code for synthetic filament tow made of aramids is 5501.11.

What is the difference between aramid tow and aramid yarn?

Aramid tow (5501.11) is a large, untwisted bundle of continuous filaments exceeding 20,000 decitex, while aramid yarn (5402) is a smaller, twisted or processed strand ready for textile production.