| Solubility (g/L) | Light fastness | Washing fastness | Resistance to sweat stains (alkali) |
Rubbing fastness | Heat resistance |
|---|---|---|---|---|---|
| （50ºC） | （Xenon Lamp）（1/1） | （CO/CH） | （Alkali） | （Dry/Wet） | （Dry/Wet） |
| 100-150 | 4 | 3-4 ，4-5 | 4 | 4-5 ，2-3 | 4 ，3 |
C.I. Reactive Yellow 39 is a basic yellow reactive dye with high solubility, bright shade and good economy. It is especially suitable for medium to light color cellulosic fiber products that require high brightness.
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