3403.11 - Preparations for the treatment of textile materials, leather, furskins or other materials:

This HTS category, 3403.11, specifically covers preparations designed for the treatment of textile materials, leather, furskins, or other materials that are *based on lubricants*. These preparations are intended to impart specific properties or facilitate processing for these substrates. Crucially, this subcategory applies only to those lubricant preparations containing petroleum oils or oils derived from bituminous minerals as a constituent.

It is important to distinguish 3403.11 from its sibling category, 3403.19. While both fall under the broader umbrella of lubricating preparations containing petroleum oils, 3403.19 encompasses all other such preparations not specifically for the treatment of textile materials, leather, furskins, or similar items. Therefore, the defining characteristic of 3403.11 is its intended application on these particular substrates.

Within 3403.11, further subdivisions exist to refine classification. The most prominent subcategory is for "Preparations for the treatment of textile materials," indicating a focus on products used in processes like softening, waterproofing, or anti-static treatments for fabrics. The existence of a further subcategory, 3403.11.50.00, designated as "Other," suggests that there may be specific, less common, or residual applications within the scope of treating textile materials that require this additional level of detail for precise classification.