Black Sulphur Dye Liquid, For Industrial

Application

• Used for Jigger, Winch and package-Dyeing for Cotton and Viscose rayon. Economical in Continuous dyeing.

Storage

• It is quite stable, if stored in cool and dry place.

General Properties:
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 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.
Method of application:
The conventional method of application is from a sodium sulphide bath. The following is the general method. 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 up to 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