| 摘要 |
<p>An anthraquinone dye of sparing aqueous solubility of the formula <IMAGE> WHEREIN X represents oxygen or NH, Y represents alkylene having 1 to 4 carbon atoms which is optionally interrupted by oxygen, nitrogen or sulphur, Z represents oxygen or -NR1, in which R1 represents an alkyl having 1 to 4 carbon atoms or hydrogen, Ac represents the acyl radical of a carboxylic acid having up to 8 carbon atoms, a sulphuric acid having up to 7 carbon atoms or a carbamic acid having up to 8 carbon atoms, and B represents chlorine, bromine or hydrogen. The new dyestuffs dye polyester fibres in very fast blue shades.</p> |
