3809.10.00.00 - With a basis of amylaceous substances

This HTS category, 3809.10.00.00, specifically encompasses finishing agents, dye carriers, and other preparations for the textile, paper, leather, or similar industries that are primarily based on amylaceous substances. Amylaceous substances, derived from starch or similar carbohydrates, form the principal component of these products. Their application is crucial in various industrial processes, such as sizing paper to improve its printability, or in textile finishing to impart stiffness, weight, or a specific hand to fabrics. This classification is distinct from other finishing agents and preparations not specified elsewhere, as the defining characteristic is the presence of amylaceous substances as the primary ingredient.

As this is a leaf node within the HTS, there are no further subcategories to detail. Therefore, the classification hinges entirely on the composition and intended use. Products falling under this heading would include starch-based sizing agents for paper, thickening agents for textile printing, or other specialized formulations where starch or its derivatives are the key functional component. Careful consideration must be given to the principal characteristic of the preparation when determining if it meets the criteria for classification under 3809.10.00.00, distinguishing it from preparations based on other chemical compounds.