| 摘要 |
<p>PURPOSE:To obtain water-based ink which hardly gets dry at the point of a pen but quickly gets dry in a print by incorporating a coloring agent, water, and a sorbitan fatty acid ester. CONSTITUTION:2-20wt.% coloring agent comprising a water-soluble dye and a pigment (e.g. C.I. Acid Black); 30-80wt.% water; 0.1-10wt.% sorbitan fatty acid ester (e.g. sorbitan monolaurate); and, optionally 0.01-5.0wt.% surfactant, 1-50wt.% water-soluble organic solvent (e.g. ethylene glycol), a preservative, a milderproofing agent, a humectant aid, a rust preventive, an antifoamer, and other additives are compounded.</p> |
