| 摘要 |
Reactive azo dyestuffs of the formula <IMAGE> wherein R, Z and A have the meaning indicated in the description, and their use for dyeing and printing materials containing hydroxyl groups or amide groups, such as textile fibers, filaments and fabrics of wool, silk and synthetic polyamide fibers and polyurethane fibers, and for dyeing and printing natural or regenerated cellulose in shades which are fast to washing.
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