Product description:
Acid Yellow 128 is mainly used for dyeing wool, silk, nylon, vinylon and vinylon/cotton, wool/viscose fabrics, as well as for the dyeing of vinylon and nylon fabrics, and for leather dyeing and direct printing on wool, silk, nylon fabrics.
Product parameter:
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CAS No.
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51053-43-1
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Colour Index
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13906
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Molecular formula
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C16H16N4O5S
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Molecular Weight
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376.38
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Appearance
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Yellow powder
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Shade
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Green light yellow
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Strength
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200%
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Preparation
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3-Amino-4-hydroxybenzenesulfonamide diazo, and 3-Oxo-N-phenylbutanamide coupling, and then use cobalt chloride complex.
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Light Fastness
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4-5(Fading), 4-5(Stain)
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Soaping Fastness
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4-5(Fading), 4(Stain)
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Oxygen bleaching
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4-5(Fading), 4(Stain)
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Fastness to seawater
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5(Fading/Stain)
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Properties
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The aqueous solution is pale yellow colloid. It is yellow in concentrated sulfuric acid and light yellow solution after dilution.
It does not change color in concentrated hydrochloric acid, and is a light yellow solution after dilution. It is destroyed in concentrated nitric acid, and the residue is yellow; it is light yellow in dilute nitric acid. It is yellow in concentrated sodium hydroxide solution and light yellow after dilution. |
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Application
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Neutral dark yellow GL is mainly used for the dyeing of wool, silk and polyamide in neutral or weak acid dyeing bath and the
dyeing of vinylon in neutral dyeing bath, and also for the direct printing of wool, silk and polyamide fabrics. Used for wool and other fibers in the same bath dyeing, nylon color is deep and red, silk slightly lighter, cotton, viscose fiber, diacetate fiber is not stained. Can also be used for leather dyeing. |
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Sample
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Free sample is available
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MOQ
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25 kgs
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Packaging
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25kgs Carton/Fiber Drum
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Storage
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Store in cool place. Keep container tightly closed in a dry and well-ventilated place. May be sensitive to prolonged exposure to
light and to heat. |
Product Exhibtion:
Color card:
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