Filter press for printing ink

The utility model discloses a press filter for printing ink. The press filter comprises a bracket, a filtering barrel, a feeding pump and an oil-water separator, the filtering barrel comprises a barrel body and a barrel cover; a sealing cover device is arranged on the periphery of the outer side of the opening part of the barrel body; a feeding pipe is arranged on one side of the upper part of the barrel body; a discharging pipe is arranged at the bottom of the barrel body; a detachable filtering device is arranged in an inner cavity of the barrel body; a discharging opening of the feeding pump is connected with the feeding pipe through a first connecting pipe; an air inlet of the feeding pump is connected with an air outlet end of the oil-water separator through an air pipe; and a first pressure gauge and a safety valve are arranged on the barrel cover. According to the utility model, the required pressure can be adjusted according to the requirements of viscosity, filtering fineness and the like of printing