(under the class definition) Processes which involve the per se chemical modification of an animal derived packaging material by the use of a reactant which chemically reacts with the animal derived material, e.g., casings, etc..
SEE OR SEARCH CLASS
8, Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers,
94.1+, for the treatment of hides, skins, feathers, and animal tissue; and 127.5+ for the chemical modification of proteinaceous fibers when such treatments are not specialized for use in preparing a food.