| 摘要 |
Complexes of the formula <IMAGE> wherein R1 is hydrocarbyl or substituted hydrocarbyl, EACH OF R2 and R3 is independently hydrogen, lower alkyl or substituted lower alkyl, EACH OF X1 and X2 is independently halo, nitro, alkyl, substituted alkyl, alkoxy or substituted alkoxy, M+ is a cation, e.g., lithium, sodium, potassium or ammonium, and M IS 0 OR 1, N IS 0 OR 1, AND P IS 0 OR 1, WITH THE PROVISO THAT THE SUM OF M, N AND P IS 1, AND DERIVATIVES THEREOF WHEREIN Ring A is substituted. These complexes are good dyes for nautral and synthetic polyamide fibers (e.g., wool, silk and Nylon) as well as for leather and light metals (e.g., aluminum)... The shades of the dyeings range from olive to yellowish-green to khaki-brown. The dyeings have notable fastness to light, wet treatments, rubbing and pressing and stability to alkalis and acids and satisfactory dischargeability. The dyes build-up on polyamides from neutral medium.
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