| Use | weak acid red 3GL is suitable for dyeing wool and nylon, with bright color and good fastness to wet treatment. Wool and a variety of fibers in the same bath dyeing, nylon dyeing, Silk Light, polyester, acrylic slightly stained, cellulose fiber does not stain. It can also be used for direct printing of silk, wool and leather. Can also be combined with weak acid Peach Red BS dye a variety of bright red. |
| production method | with 2,2 '-dimethylbenzidine, 1-naphthol -3, 6-disulfonic acid, phenol, P-Toluenesulfonyl chloride is used as raw material, 2,2'-dimethylbenzidine is double nitrided first, then coupled with 1-naphthol -3, 6-disulfonic acid, and then coupled with phenol, finally, the product was obtained by condensation of the diazo compound with P-Toluenesulfonyl chloride.. |
