Reactive Dyes

Written October 16, 2019

Fiber reactive dyes are mainly used to print onto cellulose-based fibers like cotton, linen & rayon. They are also used to dye nylon, with the addition of acid (vinegar) and heat. The advantage of this type of colorant over acid dyes is that it is wash fast and durable when used on natural fibers, producing vibrant colors.  Inkjet printed textiles may also need dye compatible top coatings before printing. Heat is then applied to the printed textile in order to aid the chemical reaction. Excess dyes that did not bond are removed from the fabric through a washing process. Post processing: steaming, then rinse or wash to remove excess dye Markets: Fashion textiles, indoor soft signage.