INK, METHOD FOR INK JET RECORDING AND APPARATUS USING THE SAME

摘要

PURPOSE:To obtain an ink capable of preventing pen points of writing utensils or printer heads from clogging and forming images of high quality by blending a specific amine compound and a specified aromatic sulfonamide compound with other components. CONSTITUTION:The objective ink is obtained by blending (A) a compound expressed by formula I (R1 to R3 are alkyl or hydroxyalkyl or either one may be H; X<-> is inorganic acid ion) and (B) a compound expressed by formula II (R4 and R5 are H, alkyl or hydroxyalkyl; R6 is carboxyl, OH, sulfone, alkyl or H) at a weight ratio within the range of (9:1) to (1:9) [preferably (7:3) to (3:7)] with other components. The total amount of the components (A) and (B) is 0.5-20wt.% (preferably 1-10wt.%).