Other Knitted or Crocheted Fabrics of Other Textile Materials

A fabric must contain 85% or more by weight of silk or silk waste to be classified under 6006901000. Fabrics with lower silk content that are not classifiable under another specific fiber heading would fall under the general residual line 6006909000. Importers should obtain fiber content documentation from the mill and, where the silk percentage is near the threshold, consider laboratory testing to confirm classification.

Beyond silk, this heading can capture knitted fabrics made from metallic yarns, glass fibers, paper yarns, or blends of uncommon fibers that do not meet the weight thresholds for classification under cotton, wool, synthetic, or artificial fiber headings. Technical textiles for filtration, medical, or industrial applications may also appear here if their fiber composition falls outside the more specific headings. Importers of unusual fiber blends should consult a licensed customs broker to confirm the correct classification.