7607.20 - Backed:

This HTS category, 7607.20, specifically covers aluminum foil that is "backed." Backing refers to the application of another material to one side of the aluminum foil. Common backing materials include paper, paperboard, plastics, or similar flexible sheet materials. The aluminum foil itself, excluding the thickness of any backing material, must not exceed 0.2 mm. This classification is concerned with aluminum foil where the structural integrity or presentation is enhanced by an adhered backing layer.

The key differentiator for this category lies in the presence of a backing material. Its sibling category, 7607.20.00 (not backed), encompasses plain aluminum foil without any attached secondary layer. Therefore, the classification hinges on whether the aluminum foil is presented alone or in conjunction with a supporting or decorative backing.

Within this "backed" classification, further subdivisions exist to provide more specific categorization. Subcategory 7607.20.10.00 addresses backed aluminum foil that is specifically covered or decorated with a character, design, fancy effect, or pattern. This indicates that the backing material, or the foil itself as presented with the backing, bears printed or applied decorative elements. The remaining backed aluminum foil, which does not meet the criteria for decorative or patterned coverage, falls under subcategory 7607.20.50.00, designated as "Other."