INK COMPOSITIONS FOR PRINTING

摘要

(a) 0.5-20 wt.% of indicator; (b) 2-40 wt.% of polymer of water-soluble resin, acidic polymer or carboxylvinyl polymer, and inorg. material of silicone dioxide or titanium dioxide; (c) 0.5-3 wt.% of base; (d) 20-80 wt.% of water and org. polar solvent; (e) 0.5-15 wt.% of surfactant; (f) 0.1-2 wt.% of additives of antiseptics or desiccant. The ink compsn. for coloring water-soluble printing comprises: the said ink compsn.; (g) 1-10 wt.% of pH control agent; (h) 1-10 wt.% of viscous agent and antifreezing agent; (i) 0.5-5 wt.% of clearing agent and anti-dispersing agent; (j) 0.5-5 wt.% of surfact, antiseptics and perfuming agent; (k) 30-95 wt.% of water and alcohol.