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Sulphur Black Application

APPLICATION SPECIFICATION MSDS

This dye belongs to the group of Sulphur Dyes. It is mainly used for dyeing Cellulosic fiber. It is also useful for dyeing viscose, staple fiber and yarn, including material which is to be given a resin finish, Silk, package dyeing and for continuous process. The light fastness of Sulphur Black is very good.
Hue. Artificial Light (tungsten) Greenish Black to Bluish Black

Sulphur black is an excellent dyes for the use of cotton with its high performance and cheaper price, it has been playing an important role in gradually acute market competition since it has born one hundred years ago. Dalian Dyestuffs & Chemicals Corporation had produced sulphur black for more than eighty years, the production capability is 12000 tons per years.

METHOD OF APPLICATION

The dye is first made into paste with a little water (containing the requisite amount of Sulphide and soda ash) and then boiled for about ten minutes with further addition of water, to make solution. This solution is then made upto the requisite volume with water in the dyeing vessel. The material to be dyed is then introduced in bath, the temperature is raised and the necessary quantity of common salt or glauber’s salt crystals are added depending upon the depth of the shade required. The material is then rinsed well, after treated if necessary, rinsed again and finished in the normal manner.