Vat Blue 42 химические свойства, назначение, производство
Подготовка
3-(4-Hydroxyanilino)-9-ethylcarbazole in Butanol sodium polysulfide solution heating, methods and C.I. Vat Blue 43 (C.I. 53630) similarity. This indophenol is by N – ethylcarbazole and 4-Nitrosophenol in concentrated sulfuric acid, in – 23 ℃ condensation and have to (BIOS 983,65-70) o note: use with C.I. leuco sulfur dye similar method, some the structure of the dyes can be converted into the leuco compound.Свойства и приложения
blue to red light blue. In concentrated sulfuric acid to green light blue, dilution after green blue precipitation; In the basic insurance powder solution or sodium hydroxide solution for yellow.| Standard | Ironing Fastness | Chlorine bleach | Light Fastness | Mercerized | Oxygen bleach | Soaping | |
| Fading | Stain | ||||||
| ISO | 4 | 3 | 5 | 3 | 3 | ||
| AATCC | 5 | 3 | 5 | 4 | 4 | ||