5511.10.00 - Of synthetic staple fibers, containing 85 percent or more by weight of such fibers

This HTS category, 5511.10.00, specifically covers yarn made from man-made staple fibers that are predominantly synthetic in nature, comprising 85 percent or more by weight of such fibers. These yarns are presented in a manner intended for retail sale, typically wound onto spools, cones, or skeins suitable for direct consumer use in sewing, knitting, or crocheting projects. The emphasis on synthetic fibers is a key distinguishing factor, differentiating it from yarns primarily composed of artificial staple fibers or those with a lesser synthetic fiber content.

Distinction from sibling categories is crucial for accurate classification. Unlike sibling category 5511.20.00.00, which covers synthetic staple fiber yarns containing less than 85 percent of such fibers (implying a significant presence of other fiber types), this category requires a high concentration of synthetic materials. Furthermore, it is distinct from 5511.30.00.00, which is reserved for yarns predominantly made from artificial staple fibers, such as those derived from regenerated cellulose.

Within this category, further subdivisions exist to refine classification based on the specific type of synthetic fiber. Subcategory 5511.10.00.30 pertains to yarns made from acrylic or modacrylic staple fibers. The residual subcategory, 5511.10.00.60, encompasses all other synthetic staple fiber yarns that meet the 85 percent or more weight threshold but are not classified under acrylic or modacrylic. This granular breakdown allows for precise identification based on the composition of the synthetic fibers.