| abstract |
The present invention provides a method of printing on a water-soluble material using a self-dispersible pigment comprising a carboxyl functional group cross-linked by a crosslinking agent having at least two groups selected from the group consisting of: Base dispersants: oxetane, carbodiimide, anthracene, oxazoline, aziridine, isocyanate, N-methylol, ketimine, isocyanurate and epoxy groups. The invention also provides inks, ink sets, printing materials, and ink jet printers. |