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US 6,332,943 B1Granted
Method of ink-jet printing with pigment preparations having a dispersant
AssigneeBASF SE
InventorsManfred Herrmann, Günther König, Rüdiger Sens, Bernd Siegel, Karl Siemensmeyer
Life of this patent
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Abstract
Pigment preparation for the ink-jet process which comprises A) at least one finely divided, organic or inorganic pigment, B) a dispersant based on arylsulfonic acid/formaldehyde condensation products or an alkoxylated phenols, and C) water, as essential constituents. It provides for prints of high light fastness, wash fastness and rub fastness.
Claims5
A process for printing sheet or three-dimensionally configured substrates by the ink-jet process, which comprises ink-jet printing a pigment preparation onto a substrate to produce a print, the pigment preparation comprising:
- (A) at least one finely divided, organic or inorganic pigment,
- (B) a dispersant of the formula I or II:
- where
- a is from 0 to an average 125,
- b is on average from 37 to 250, the ratio b:a being at least 1:1 when b>37, and
- d is 0 or 1,
- or mixtures thereof, and
- (C) water.
5 more elements
Dependencies are inferred from the claim text.