Method for reclaiming waste ink

Details Method for reclaiming waste ink Method for reclaiming waste ink

1987-06-24

1988-10-18

Sever, Frank

Liquid purification or separation

Processes

Ion exchange or selective sorption

210774, 210788, 210801, B01D 1700, B01D 4500

Patent

active

047786043

ABSTRACT:
An improved method for reclaiming waste printing ink is provided that requires no dilution nor blending with virgin ink wherein substantially all entrained water and solvent contamination is removed in a vacuum distillation step. Solid impurities are removed via a subsequent filtration method that leaves the ink's pigment content substantially undiminished.

REFERENCES:
patent: 3929586 (1975-12-01), Slikkers
patent: 4437940 (1984-03-01), Sussmeyer et al.

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