| 摘要 |
FIELD: organic chemistry, luminophores. ^ SUBSTANCE: invention relates to colorless at daylight organic luminophores, in particular, to novel, water-soluble, colorless luminophores A of the formula: ^ wherein X means oxygen (O) or sulfur (S) atom; Q means compounds of the formulas and wherein R1 and R2 taken separately or in common mean compounds of the formulas: -NHCH2COOM, -N(CH2COOM)2, Cl wherein M means Na, K, NH4. As comparing with the known colorless organic luminophores - optical whitening agents possessing with blue-sky blue fluorescence only, novel luminophores show fluorescence in the range from blue to yellow-orange color and can be used as components of fluorescent, colorless at daylight, inks for jet printers or stamp dyes. ^ EFFECT: improved and valuable properties of luminophores. ^ 14 ex |
