4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidand 2,4,6-Trichloro-1,3,5-triazine first condensation, and a second time between ester condensation, 2-Aminonaphthalene-1,5-disulfonic acid diazo, and the generation of condensation products coupled, then salting-out.
Properties and Applications
colourful red blue light. Brown powder. 50 ℃ when the solubility of dye is greater than 100g/L, light blue dye for red, dye bath containing iron ion, colored light slightly turned dark (category 4); Copper ions colored light turned purple turned dark. Mainly used for cellulose fabric dyeing, also can be used for cotton and viscose fiber printing.
Standard
|
Light Fastness
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Oxygen bleaching
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Persperation Fastness
|
Soaping
|
Fading
|
Stain
|
Fading
|
Stain
|
Fading
|
Stain
|
ISO
|
5-6
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4-5
|
5
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4
|
4
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4-5
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5
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