5911.20 - Bolting cloth, whether or not made up:

Category 5911.20 specifically covers "Bolting cloth," which refers to textile fabrics, typically woven from fine yarns, that are designed for use in the process of sifting or bolting fine powders, such as flour or other granular materials. This fabric is characterized by its relatively open weave and consistent mesh size, ensuring uniform particle separation. The description explicitly states "whether or not made up," indicating that finished items like screens or bags constructed from this bolting cloth are also classified here.

When distinguishing 5911.20 from its siblings, it's important to note the specific function. Unlike 5911.10, which covers fabrics for card clothing or other technical textile uses, or the general "Textile fabrics and felts, endless or fitted with linking devices" for papermaking, 5911.20 is narrowly focused on sieving applications. Furthermore, 5911.40.01.00 pertains to filtering or straining cloth for oil presses, a distinct industrial filtration purpose. The "Other" category within 5911.90.00 would encompass textile articles for technical uses not otherwise specified.

Within the subcategories of 5911.20, we find a specific subdivision for fabrics principally used for stenciling in screen-process printing (5911.20.10.00). This highlights a specialized application of bolting cloth where its precise mesh is crucial for ink transfer in printing. The subsequent "Other" subcategory would then accommodate bolting cloth and made-up articles that do not fall under this specific printing application but still meet the general definition of bolting cloth for sieving purposes.