Textile Mordant for Natural Dyes from Japan
Aluminum acetate solution used to fix natural dyes like indigo and madder on wool and silk fabrics using traditional mordanting techniques. Revived for artisan textile production. 3809.91.00 as textile mordant preparation.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide mordanting time/temperature protocols matching natural dye processes
• Include fastness test results with specific natural dye combinations
• Document exclusion of synthetic mordants to maintain heritage classification