| 摘要 |
<p>1457959 Dyestuff compositions HOECHST AG 25 Nov 1974 [24 Nov 1973] 50977/74 Heading D1B Water soluble dyestuff preparations used to produce deep blue shades on natural e.g. wool, silk or leather, and synthetic polyamides comprise 10 to 99.5 percent by weight of one or more dyestuffs of the general formula wherein each X is hydroxy, methyl, ethyl, methoxy or ethoxy and Y is H or methyl, and 0.5 to 90.0 percent by weight of one or more auxiliary compounds selected from polyglycols having an average M.W. of 3000-20000, polyglycol ethers of fatty alcohols and fatty acid amides containing one or more hydroxyl groups, the alcohols and amides having from 8 to 20 C atoms and the ethers 15 to 30 ether groups, alkylbenzene-phenyl ether disulphonates and dialkylnaphthalene sulphonates the alkyl groups having 1 to 6 C atoms and methyl taurides and isethionates of saturated and unsaturated fatty acids having 8 to 20 carbon atoms. Additional adjuvants include extenders anti-dusting agents and anti-foaming agents. The preparations may be in the form of aqueous solutions, dyeing or padding liquors or print paste.</p> |
