Sunthol® are insoluble azo dyes applied to cellulosic fibres by impregnation in a Sunthol® solution and subsequent coupling with a colour salt. All cellulosic fibres such as cotton, linen, jute, hemp, as well as silk and rayon may be dyed or printed with Sunthols®.
This method of dyeing yields a wide range of shades covering deep yellow, orange, scarlet, red, maroon, violet, brown navy and black the shades are brilliant and in general possess excellent fastness to washing, alkalis, acids and chlorine. Many combinations have very good fastness to light. The shades are also resistant to mercerizing, scrooping and cross dyeing in boiling acid solutions. However dyeing based on Sunthol® AS-G combinations and a few of the blue, violet, black and brown dyeings are also fast to peroxide bleach. Napthol - Fast Base Dyeing are also very widely used for African Print / Wax Print.
Sunthol® are available in the Powder form. We are also producing Sunthols® in the Liquid form. Normally, packing of Sunthol® is in 25 kgs brand new HDPE bags with inside double liner. We have also introduced special 1kg/2kg packing for cottage industries especially for tie and dye users. We can also provide packing in Plastic drums / Iron drums / Fibre drums as per our customer's requirements.
We are also having a complete range of Sunthols® as mentioned above in the most purified Form. These Sunthols® are produced in Glass-Line vessels, so that contents of the metal are almost nil. They have an excellent solubility and minimum insolubles. These highly purified Sunthols® are re-commended for the production of Pigments.