Waterfast pigment inks for ink jet printing

Details Waterfast pigment inks for ink jet printing Waterfast pigment inks for ink jet printing

C - Chemistry, Metallurgy

09

D

C09D 11/02 (2006.01) C09D 11/00 (2006.01)

Patent

CA 2339521

An ink jet ink composition comprises chemically modified carbon black dispersion in presence or absence of black dye, a polymer such as ethoxylated polyethylene imine, in combination with N-methyl-pyrrolidone and other commonly used additives to improve water fastness on coated substrates to greater than 90%.

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