This section is from the "A Complete Dictionary of Dry Goods" book, by George S. Cole. Also available from Amazon: A complete dictionary of dry goods and history of silk, cotton, linen, wool and other fibrous substances,: Including a full explanation of the modern processes ... together with various useful tables.
Bolting Cloth. A cloth of linen or silk used in mills for bolting or sifting meal and flour; also a fine wide linen fabric used by ladies for fancy-work. The most expensive variety of silk fabric made is bolting cloth for millers' use, woven almost altogether in Switzerland. There is no import duty on this, provided it is not used for, or suitable for wearing apparel.