Sulphur Dyes - Versatile Cotton Dye Solutions | High Wash-fastness Eco-friendly Zero Sulfide Options

we are affianced in supplying exporting and manufacturing of sulphur dyes in Panoli Gujarat India. this Sulfur dyes are the most commonly used dyes manufactured for cotton in terms of volume. They are cheap generally have good wash-fastness and are easy to apply. Sulfur dyes are predominantly black brown and dark blue. Red sulfur dyes are unknown although a pink or lighter scarlet color is available. The forerunner of sulfur dyes is attributed to "Cachou de Laval" which is prepared by treating wood products with sulfide sources. Subsequently the so-called Vidal Blacks were produced by reactions of various aniline derivatives with sulfur. These experiments demonstrated that deeply colored materials could be readily produced by combining aromatic compounds and sulfur sources. Due to the highly polluting nature of the dye-bath effluent sulfur dyes are being slowly phased out in the West but they are used on a large scale in China. Recent advances in dyeing technologies have allowed the substitution of toxic sulfide reducing agents. Glucose in basic solution is now used and both low sulfide and zero sulfide products are available. Future developments in the field of reducing dye levels by means of electro-chemical processes are promising.