| 摘要 |
<p>PURPOSE:To provide a recording liquid, containing high-purity water-soluble poly (tris or higher) azo dye, free from clogging even at high concentrations or during long-term storage, without development of settings of heat-generating head, of high stability, for recording or printing with ink jet system, etc. CONSTITUTION:The objective recording liquid containing a water-soluble poly (tris or higher) azo dye of a purity >=85% (pref. C.I. Direct Yellow 86, 142, C.I. Direct Red 80, 84, C.I. Acid Black 94). This liquid is useful for such ink jet recording system as to utilize thermal energy.</p> |
