Method of improving dye base ink jet printing quality using cation surfactant

Abstract

The inks provide excellent ink-jet prints having excellent imaging onto the media with sharp, smooth edge text print and overall print quality improvements. The aqueous inks each comprise an anionic colorant (CMYK), a short chain alcohol or diol and a cationic surfactant.

Description

technical field

[0001] The present invention relates broadly to the field of inkjet printing, and more particularly to a special ink formulation for improving the printing quality of dye-based inks on plain paper, especially edge raggedness / edge definition. Background technique

[0002] Inkjet printing is a non-impact printing method in which ink droplets are deposited on a printing substrate in a specific order to form alphanumeric characters, area fills, and other patterns on the substrate. Compared with other computer-connected printers, inkjet printers are becoming an alternative trend due to their low cost, high-quality hard copy output, and relatively quiet operation. Despite its current success, intensive research and development continues to further improve inkjet printing quality. Explosive interest in inkjet printing, especially in the field of photographic printing, has led to a need for high quality printing at a reasonable cost. The cha...