Colouring composition for polly acrylonitrile contains - a basic colorant and an organic base in acid medium
Base may be urea or ethanolamine. The basic colourant may contain hydrazinium, ammonium, sulphonium, phosphonium or cycloimmonium, or primary, secondary or tertiary amino radicals. Compositions are simple to apply and can be used, in solution or dispersion in water for colouring polyacrylonitrile. T...
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| Sprache: | eng ; ger |
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| Zusammenfassung: | Base may be urea or ethanolamine. The basic colourant may contain hydrazinium, ammonium, sulphonium, phosphonium or cycloimmonium, or primary, secondary or tertiary amino radicals. Compositions are simple to apply and can be used, in solution or dispersion in water for colouring polyacrylonitrile. They prevent the spread during weighing processes of powdered colourants in the form of dust, and are stable for several months at room temp. |
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