4810.13.11 - Basic paper to be sensitized for use in photography

This classification covers paper and paperboard that has been coated on one or both sides with kaolin or other inorganic substances, with or without binders. Crucially, this paper must be intended for graphic purposes, meaning it is designed for writing, printing, or other visual applications. It is characterized by containing no more than 10 percent by weight of fibers obtained through mechanical or chemo-mechanical processes, ensuring a smoother surface and better printability. Furthermore, it is supplied in rolls with a width exceeding 15 cm and a basis weight not exceeding 150 g/m².

Within this specific sub-heading, the paper is differentiated from its siblings, "India or bible paper" (4810.13.13.00) and "Other" (4810.13.19.00). The distinction lies in the specialized purpose and preparation of this paper. While India or bible paper is known for its thinness and opacity, and the "Other" category encompasses a broader range of graphic papers, this heading specifically targets a subset where further processing for particular graphic applications is relevant.

The subcategories within 4810.13.11 further refine the classification based on additional surface treatments. "Baryta coated" (4810.13.11.20) refers to paper that has an additional layer of barium sulfate, commonly used in photographic printing for enhanced gloss and whiteness. The "Other" subcategory (4810.13.11.40) captures any remaining papers within the scope of 4810.13.11 that do not fit the specific baryta coating criterion, but still meet the general requirements of being coated with inorganic substances and intended for graphic purposes.