Multi-enzyme blend, Liquid

BioDeink® N

BioDeink® N is suitable for removing ink from mixed office waste (MOW),  old newsprint (ONP) and a range of other recyclables.
It´s a green option to enhance the efficiency of conventional deinking. 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. 

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Key Benefits
  • Increased brightness

    The brightness of your recycled pulp depends on the efficiency of ink detachment from fiber. Enzymes work selectively on the fiber surface where the ink is located to deliver highly efficient ink removal.  Brightness also depends on separation efficiency in washing and flotation. The enzymes in this blend remove starch and cellulose from the surfaces of detached ink particles. That increases their hydrophobicity. This makes them easier to separate from the fibers during washing or flotation. The end result is brighter pulps.

  • Reduced chemical inputs

    Conventional deinking operations need substantial chemical usage. This product's targeted action allows you to reduce or even eliminate certain chemicals in your process. That could help you improve your sustainability profile.

  • Improved yield

    This product removes starch and cellulose from the surface of ink particles. That improves flotation efficiency. The end result is reduced fiber loss and improved overall yields. 

  • Lower dirt count

    Contaminants are common in recycled fiber. If they're not removed, they increase the dirt count of your final product. This product modifies the surface of the fibers to free trapped contaminants. That enables removal upstream and reduces your dirt count. 

  • Improved dewatering

    The dewaterability of recycled pulps can be poor. This product breaks down non-fiber components in the pulp that may restrict water removal. That improves dewatering for a range of benefits across your paper machine. These include drying energy savings and/or faster machine speeds. This could allow you to boost your productivity.

  • Energy savings

    High temperatures are commonly required to physically and chemically disrupt the fiber-ink interaction. Enzymes can perform similar functions under more moderate conditions. This can result in steam savings. 

How a multi-enzyme blend delivers higher brightness and a range of other benefits in deinking of recycled fibers

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.