Red HF-6BN
Textile Dyestuffs
C.I.Reactive Red 195
Molecular Structure: Single azo class
Molecular Formula:C31H19ClN7Na5O19S6
Molecular Weight: 1136.32
CAS Registry Number:93050-79-4
Manufacturing Methods : 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 | Oxygen bleaching | Persperation Fastness | Soaping | |||
| Fading | Stain | Fading | Stain | Fading | Stain | ||
| ISO | 5-6 | 4-5 | 5 | 4 | 4 | 4-5 | 5 |
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