Patent ID: 6547970
Filing Date: 2003-04-15
Classification: C02F

Abstract:
A method for the treatment of a wiping solution for the removal of excess ink from an intaglio cylinder of an intaglio printing press, which comprises:adding a flocculant to said wiping solution to thereby induce flocculation of ink components contained in said used wiping solution; filtering said used wiping solution containing flocculated ink components for separation of said used wiping solution into sludge and a filtrate; heating said filtrate so as to produce distilled water and a concentrated solution; temporarily storing and recycling said distilled water for use as a raw material for fresh wiping solution; and feeding said concentrated solution onto a surface of a drum having an inside surface which is heated by steam and heating said concentrated solution, thereby evaporating liquid components contained in said concentrated solution into steam, while allowing solid residue to deposit on the surface of the drum, whereby said concentrated solution is separated into steam and a solid residue.