Shivanand Polymers GIDC, Rajkot, Gujarat

SHIVITEX `M' Brand Dyes are highly reactive requiring comparatively milder conditions in dye fixation. They are primarily of interest in dyeing at normal room temperature (about 25-35ºC) using Soda Ash or Sodium Bicarbonate.

SHIVITEX HE Dyes are suitable for dyeing cotton and other cellulosic materials. These dyes possess significantly higher exhaustion and fixation efficiency which results in appreciable cost reduction. In comparison to conventional reactive dyes. The high fixation and good build up are of particular importance when dyeing polyester cellulosic blends where liquor : goods ratio is quite high. Due to higher fixation of SHIVITEX HE Dyes, the drained and wash liquors after dyeing contain much less quantity of unfixed dyes, in comparison to conventional reactive dyes, which is of interest when pollution control is a major concern to everybody. This facilitates quicker wash off and efficient soaping. The improved stability of SHIVITEX HE Dyes given improved batch to batch consistency. Exhaustion of SHIVITEX HE dyes can be controlled by salt addition and temperature to give level dyeing before alkali addition.

These are mixed bifunctional reactive dyes where Vinyl Sulphone group is linked to chromophore through a Reactive group as a bridge link. They are applicable on cellulosic material at lower dyeing temperature of 60ºC.