| 摘要 |
<p>PURPOSE:To obtain the subject compsn. which has a stable viscosity on aging and a suitable shear-thinning index and hardly exhibits excess flowing out or blur by compounding a colorant, water, a polar solvent, a specific shear- thinning agent, and other necessary additives. CONSTITUTION:This ink compsn. is obtd. by mixing 0.1-30wt.% colorant, 10-30wt.% water-sol. polar solvent, at least one kind of fine inorg. particles having a mean particle size of 2mum or lower selected from inorg. simple substances and compds. as a shear-thinning agent, other necessary additives such as a pH-adjusting agent, a rust preventive, an antiseptic or mildewproof agent, and a lubricant into water, filtering the mixture, and thus dispersing the fine inorg particles in such a manner that the mixture has shear-thinning properties or pseudoplasticity.</p> |
