Blended artificial staple fiber yarns — where the artificial fiber content falls below 85% by weight — occupy a distinct classification niche from pure-fiber yarns, often mixed with cotton, wool, or synthetics to achieve specific hand or performance characteristics. Importers should note that the non-retail packaging requirement is a hard classification boundary: the same yarn wound for consumer sale falls under a different heading. Textile yarns in this category may be subject to Section 301 tariffs depending on country of origin, making origin documentation and fiber-content certification critical at entry.

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