Method for reclaiming waste ink
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United States of America Patent
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-
Oct 18, 1988
Grant Date -
N/A
app pub date -
Jun 24, 1987
filing date -
Jun 24, 1987
priority date (Note) -
Expired
status (Latency Note)
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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.
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