Mac Cell Deinking
Working Principle
The stock is pumped and sent tangentially to the top of the cell after being aerated by a set of small autoclean injectors. Once in the cell, air bubbles, after collecting ink particles, rise up to the top of the cell to create a thick foam mat which is evacuated due to the slight pressurization of the cell.The stock partially de-inked goes to a de-aeration chamber and is pumped full flow to the next stage. The operation is exactly the same as for the first stage, with the same number of injectors and same flow.
This operation is repeated up to five times, thus giving the best possible ink removal under industrial conditions. Re-mixing of the air coming from the downstream stages aids the upper stages significantly improving the overall cell efficiency.
Applications
- Ink removal for writing and printing applications
- Ink and filler removal for tissue and any application requiring a reduction in fillers
- Hydrophobic sticky removal
- Special tasks allowing a increase of hydrogen bonding
- Food contact applications
Benefits of mac cell
- High ink and hydrophobic particle (stickies) removal
- No requirement for a second stage cell
- Limited footprint (vertical configurations of the stages, and no secondary cell)
- Low specific power consumption
- Constant and reliable operation
- Adjustable and selective losses depending on the application and technical requirements (inks, or inks and fillers)
- High foam consistency compared with conventional cells
