Effects of Glycine Derivatives in Dispersed Colorant Based Inks
Abstract:Recently, pigmented inks became popular for personal and office printers. They have advantages in waterfastness and lightfastness, but they have limitations on clear color, rub resistance and jetting reliability. Therefore, new inks have been required to overcome these problems.
We have developed new emulsion colorant in order to solve these problems. The colorant is water based polymer emulsion containing water insoluble dye. The emulsion colorant based inks show clear color, rub resistance like water soluble dye based inks and waterfastness, sharpness like pigmented inks. But the emulsion colorant based inks cause clogging at the nozzle of print head, and by this clogging jetting reliability are fallen off.
To solve this problem, we investigated various humectants suitted to the emulsion colorant. As the result, we found that addition of glycine derivatives improved jetting reliability of the emulsion colorant based inks sharply, and that glycine derivatives were useful humectant for pigmented inks, too.
Document Type: Research Article
Publication date: 2003-01-01
For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.
Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.
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