Leather finishing
Leather finishing means a single process or group of processes used to adjust and improve the physical and aesthetic characteristics of the leather surface through the multistage application of a coating comprised of dyes, pigments, film-forming materials, and performance modifiers dissolved or suspended in liquid carriers.
Source
40 CFR § 63.5460
Scoping language
Terms used in this subpart are defined in the Clean Air Act, 63.2, and in this section as follows: