Ink composition for continuous deflected jet printing

Abstract

An ink composition for continuous deflected ink jet printing, liquid at ambient temperature is disclosed. One aspect is an ink composition comprising: a solvent including organic solvent compound(s), and optionally water, the solvent representing at least 20 % by weight of the total weight of the ink. Furthermore, there is at least one compound imparting conductivity to the ink composition, chosen from among the ionic liquids, the compound representing 0.2 % by weight to 4 % by weight of the total weight of the ink composition, preferably 0.5 to 3 % by weight of the total weight of the ink composition. Lastly, the ink composition includes less than 10 % by weight, preferably less than 5 % by weight, more preferably less than 1 % by weight, and most preferably 0 % by weight of water relative to the total weight of the ink composition.

What is claimed is: 
     
         1 . An ink composition for continuous deflected ink jet printing, liquid at ambient temperature, comprising:
 a) a solvent comprising, preferably consisting of, one or more organic solvent compound(s), and optionally water, the said solvent representing at least 20 % by weight of the total weight of the ink;   b) at least one compound imparting conductivity to the ink composition, chosen from among ionic liquids, the said compound representing 0.2 % by weight to 4 % by weight of the total weight of the ink composition, preferably 0.5 to 3 % by weight of the total weight of the ink composition; and the ink composition comprising less than 10 % by weight, preferably less than 5 % by weight, more preferably less than 1 % by weight, and most preferably 0 % by weight of water relative to the total weight of the ink composition.