• Dyeing,  News

    Potential of DyStar’s Sodium Hydrosulfite-Free Indigo

    There is a small revolution coming. Although the news of DyStar launching a new, sodium hydrosulfite-free indigo dye, which the chemical company introduced to the public late last year, went almost undetected by the fashion media, its potential for the industry cannot be stressed enough. Here’s why: Indigo is not a conventional dye. It is insoluble in water and must first undergo a chemical reaction that will turn it into a soluble, dye-friendly form. This can be done with bacteria during a fermentation process, which is considered green but takes time and is therefore not popular with the mass market, or it can be achieved via a powerful reducing agent…