5515.91.00.10 - Poplin or broadcloth (625)

This HTS category, 5515.91.00.10, specifically classifies "Poplin or broadcloth" woven fabrics made from synthetic staple fibers. These fabrics are characterized by a plain weave where warp yarns are woven over and under single weft yarns. Poplin is typically distinguished by a finer warp count compared to the weft count, creating a smooth, fine-gauge fabric with a slight rib effect. Broadcloth, while also a plain weave, generally has a higher thread count and a denser, crisper finish. These textiles are commonly used in apparel, home furnishings, and industrial applications where a smooth, durable, and stable fabric is desired.

Distinguishing this category from its siblings, 5515.91.00.20 (Sheeting), 5515.91.00.30 (Printcloth), and 5515.91.00.40 (Satin weave or twill weave), is crucial. While all fall under "Other woven fabrics mixed mainly or solely with man-made filaments," poplin and broadcloth are specifically defined by their plain weave structure and characteristic fabric appearance. Sheeting, also a plain weave, typically refers to fabrics with a specific yarn count and weight range suitable for bed linens. Printcloth is generally a lighter weight plain weave fabric designed for printing. Satin and twill weaves, as indicated by their names, utilize different weaving patterns (satin or twill) that result in a distinct surface luster or diagonal texture, respectively, differentiating them from the smooth, uniform appearance of poplin and broadcloth.

As this classification is a leaf node, there are no further subcategories. Therefore, classification within 5515.91.00.10 depends on the precise identification of the fabric as either poplin or broadcloth, based on its weave construction, yarn count, density, and resultant hand and appearance, within the broader context of other woven fabrics of synthetic staple fibers.