The centrifuge can remove objectionable solids and leave a slightly colored solution that is still capable of cleaning the blankets and press parts with little contamination or abuse. When cleaning a press or plates, the most critical factor is the ability of the wiper to remove contamination and not leave lint in its wake. The lint most certainly will remain in places that will be detrimental to quality printing. The choice of a reusable or disposable wiper then boils down to how the dirty wipers will be disposed. The terms of most laundries are specific in stating that the wipers are presumed to be as dry as possible, and that the containers do not hold residual solvents.
Disposable wipers have only one means of disposition.
They are drummed for disposal. The drums are either placed in landfills or burned in an incinerator. A simple device such as the roller wringer, used on washing machines in bygone days, could do a very acceptable job of removing solvent from soaked wipers. Most cleaning winds up with wipers being left in the fountain pan to soak up the press washes. The waste never seen may be going out of the door to the laundry rather than to the hazardous waste treatment facility.