| abstract |
The present invention relates to an ink comprising: (a) 0.5 to 5 parts of a self-dispersible pigment; (b) 1 to 10 parts of a styrene acrylic latex binder and/or a styrene butadiene latex; (c) 0 to 5 parts of a glycol selected from the group consisting of ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol or triethylene glycol; (d) 1 to 10 parts of 2-pyrrolidone; (e) 1 to 15 parts Glycerol; (f) 0.1 to 3 parts of an acetylenic surfactant; (g) 0.001 to 5 parts of a biocide; (h) 0 to 10 parts of a viscosity modifier; and (i) up to 100 parts of water.nThe invention also relates to ink jet printing methods, printed substrates, ink jet printer ink containers, and ink jet printers having recirculating print heads. |