5513.19.00.50 - Satin weave or twill weave (617)

This HTS category, 5513.19.00.50, specifically classifies unbleached or bleached woven fabrics of synthetic staple fibers, containing less than 85 percent by weight of synthetic staple fibers and mixed mainly or solely with cotton, not exceeding 170 g/m². The defining characteristic of this classification is the fabric's weave structure, which must be either a satin weave or a twill weave. These weaves are distinguished by their distinct interlacing patterns that create characteristic surface appearances and drape properties.

This category differentiates itself from sibling categories such as poplin or broadcloth (5513.19.00.10), sheeting (5513.19.00.20), printcloth (5513.19.00.30), cheesecloth, lawns, voiles or batistes (5513.19.00.40), and Oxford cloth (5513.19.00.60) based on the specific weave construction. While all these categories fall under the broader umbrella of "Other woven fabrics" within the context of unbleached or bleached synthetic staple fiber blends, the satin or twill weave designation is the critical factor for classification into this particular HTS code. For instance, a satin weave typically features long floats that create a smooth, lustrous surface, whereas a twill weave exhibits diagonal lines due to its staggered interlacing pattern.

As this is a leaf node within the HTS structure, there are no further subcategories to introduce. Classification at this level is definitive, relying on the precise identification of the weave construction as either satin or twill, alongside the established criteria of fiber content, weight, and processing state (unbleached or bleached) defined by the parent HTS headings.