BioDeink® N is suitable for removing ink from mixed office waste (MOW), old newsprint (ONP) and a range of other recyclables. It's a greener alternative to conventional deinking of recycled paper. With this more selective technology you can effectively separate ink while achieving higher yields and brightness. And because it works at lower temperatures, it leads to energy savings.
Enzymes act together in a blend to efficiently detach ink. This improves conventional separation and results in brighter recycled pulps and higher fiber yield.
Recovered fibers can be recycled to produce tissue, packaging grades, printing paper and other products. But first, they need to be deinked. Effective deinking relies not only on efficient ink detachment. It also relies on efficient separation of ink by washing or flotation. Conventional deinking operations need substantial chemical usage. In a multi-enzyme blend, the enzymes work synergistically. The result is efficient deinking and higher pulp brightness. Their combined targeted actions can allow a reduction in - or even elimination of - certain deinking chemicals.
The cellulases, hemicellulases and amylases in the blend act at the interface between the fiber and bound ink particles. The weakened interface fails under light shear and ink particles are liberated from the fiber. The combined action of cellulases and hemicellulases also scours the surface of the fiber. That releases fiber wall debris and entrapped dirt.
Debris on the surface of detached ink particles decreases their hydrophobicity. It also increases fluid resistance. Cellulases and hemicellulases continue to target and remove residual cellulose and hemicellulose debris at the surface of the ink particle. Amylases remove residual starch. Removal of these substances improves the efficiency of ink separation from the pulp.
The end result is a brighter pulp with lower dirt counts and fiber loss. In addition, enzymatic conditioning of fiber may improve pulp dewaterability and strengthening potential.