Patent ID: 6884287

Claim:
An ink base for producing pigmented inks having a water base, the ink base comprising: a drying retarder and a pH adjusting agent; wherein the drying retarder comprises at least diethylene glycol (DR1), 1,6-hexane diol (DR2), and pentaerythritol (DR3); wherein the pH adjusting agent (PH) comprises at least one amine; wherein the ink base comprises at least diethylene glycol (DR1) 30.0-95.5% by wt. 1,6-hexane diol (DR2) 3.0-40.0% by wt. pentaerythritol (DR3) 0.01-3.0% by wt. and amine (PH) 1.5-15.0% by wt.