HS Code for Polyamide staple fibers

Polyamide staple fibers are classified under HS code 5506.10 because they represent synthetic staple fibers that have undergone specific mechanical processing, namely carding or combing, to prepare them for the spinning process. Chapter 55 of the Harmonized System is dedicated to man-made staple fibers, which are discontinuous fibers as opposed to continuous filaments. Within this chapter, heading 5506 specifically addresses synthetic staple fibers that have been carded, combed, or otherwise processed for spinning into yarn. This distinguishes them from raw staple fibers that have not yet reached this stage of preparation. The classification depends on the material composition—in this case, nylon or other polyamides—and the specific industrial process applied to the fibers. These fibers are typically used in the textile industry to produce blended yarns or non-woven materials where a specific fiber alignment is required for strength and texture. The carding process involves disentangling and aligning the fibers into a continuous web or sliver, while combing further refines this by removing shorter fibers and impurities, resulting in a high-quality input for fine yarn production. This classification is essential for customs authorities to distinguish between raw materials and semi-processed goods, as the latter often carry different duty rates. The technical specifications for these fibers often include denier, cut length, and tenacity, all of which must align with the definitions provided in the Section XI notes of the Harmonized Tariff Schedule.

Products Included

• Carded nylon 6 staple fibers
• Combed nylon 6,6 staple fibers
• Polyamide fibers processed for worsted spinning
• Synthetic staple fibers prepared for yarn manufacturing

Common Misclassification

A frequent error is classifying these fibers under HS code 5503.11 or 5503.19. These codes are reserved for polyamide staple fibers that have not been carded, combed, or otherwise processed for spinning. The transition from 5503 to 5506 occurs the moment the fibers undergo mechanical alignment processes. Additionally, some importers confuse these with filament yarns under heading 5402; however, staple fibers are discontinuous lengths, whereas filaments are continuous.

FAQ

What is the HS code for polyamide staple fibers?

The HS code for polyamide staple fibers that have been carded or combed is 5506.10.

What is the difference between 5503 and 5506?

HS code 5503 covers raw staple fibers, while 5506 covers fibers that have been mechanically processed (carded or combed) to prepare them for the spinning process.