Cleaners are used in recycled fiber processing to separate o…
Cleaners are used in recycled fiber processing to separate out contaminants. As with virgin pulps, the separation process of the cleaners is mainly based on differences in density. For virgin fibers, the most common cleaner type is a forward cleaner (removing sand, etc.). In recycled fiber processes, you will find a lot of reverse and flow-through cleaners. Why is that? What are reverse and flow-through cleaners removing?