| 摘要 |
<p>PURPOSE:To provide a recording soln. which gives printing excellent in quick- dryness and quality even when recording is made on plain paper, containing a water-soluble dye, an aq. medium and a water-soluble polyamide. CONSTITUTION:0.2-12wt.% water-soluble dye (e.g., C.I. Direct Black 17), 0.5-5wt.% water-soluble polyamide having an m.p. of 60-120 deg.C, a glass transition point of -80-70 deg.C and solubility of 5-50wt.% in water, 0.001-0.5wt.% surfactant and 0.1-10wt.% compd. selected from the group consisting of urea, thiourea, biuret and semicarbazide are dissolved in 20-89.5wt.% aq. medium to obtain a recording soln. having a pH of 6-8.</p> |
