Assembly to break down waterproof paper/cardboard has rollers with surface needles to perforate the coating/lamination on both sides, before transfer to a container with fluid to break them down

摘要

To break down paper or cardboard materials (1) with a fluid-impermeable coating or lamination on both sides, they are passed by continuous conveyors (7,12) between rollers (9,10) with needles (11) around their circumference for deposit in a vessel (13) containing a fluid (F) to dissolve the surface coatings.