Bio‑deinking Enzyme segmentation by type distinguishes four enzyme families that dominate formulation design: proteases, cellulases, lipases, and mixed‑enzyme systems. Proteases target protein‑based ink binders, delivering rapid ink release and are the most widely adopted class, thus generating the largest revenue slice within the market. Cellulases act on cellulose fibers to improve pulp drainage and enhance ink‑particle detachment, supporting higher pulp yields and commanding a significant, second‑tier share. Lipases degrade oil‑based inks and coatings, a niche capability that commands premium pricing in sectors where oil‑based formulations remain prevalent. Mixed‑enzyme systems combine two or more families to address complex, multi‑component inks, offering superior de‑inking efficiency at the cost of higher formulation complexity; this hybrid approach is gaining traction in high‑value specialty‑paper applications. The relative performance, cost structure, and regulatory profile of each type directly affect adoption rates, shaping the overall market size for Bio‑deinking Enzyme products.