5408.31.20.50 - Satin weave or twill weave (628)

This HTS category, 5408.31.20.50, specifically classifies other woven fabrics of artificial filament yarn, unbleached or bleached, that are of a satin weave or twill weave. These fabrics are characterized by their specific weave structures, which impart distinct visual and textural qualities. A satin weave is recognized for its smooth, lustrous surface achieved by interlacing warp threads over several weft threads with a minimum of interlacing, creating a characteristic sheen. A twill weave, on the other hand, is identified by diagonal parallel ribs or lines on the surface, formed by the progressive interworking of warp and weft threads.

This classification distinguishes itself from its siblings by the specific weave pattern. For instance, it differs from 5408.31.20.20 (Poplin or broadcloth), which typically involves a plain weave with a higher thread count, resulting in a smoother, crisper fabric. It is also distinct from 5408.31.20.30 (Sheeting), generally a plain weave fabric with a balanced warp and weft count, and 5408.31.20.40 (Printcloth), a plain weave fabric of moderate thread count. The "Other" category at 5408.31.20.90 would encompass woven fabrics of artificial filament yarn meeting the broader criteria but not falling under the specific satin or twill weave descriptions of this subcategory.

As this is a leaf node within the HTS, there are no further subcategories. Therefore, the primary focus for classification under 5408.31.20.50 is the precise identification of either a satin or a twill weave construction within unbleached or bleached woven fabrics made from artificial filament yarn. The practical application of this category lies in distinguishing these specific weave types from other weave structures within the broader classification of "other woven fabrics" of artificial filament yarn.