| Use | sulfurized yellow GC is mainly used for dyeing cotton, hemp, viscose fiber, vinylon, also used for leather coloring. It can be used for color matching, and can be used to color grass green, beige, turmeric, yellow brown, dark brown, dark green, dark gray and other colors. |
| production method | with 2, 4-diaminotoluene as the raw material, firstly, 2,4-diaminotoluene and formic acid are subjected to formylation reaction to form 2,4-diformylaminotoluene. The mixture of 2, 4-diformylaminotoluene and sulfur was then calcined at 140-150 °c and the temperature was gradually increased to 218-220 °c over a period of 15H. The product was cured and cured. The product was obtained by cooling and crushing.. |
