Discharge printing is a process where water-based inks are applied to certain "dischargeable" dark colored garments to produce very bright, soft prints. As the discharge inks are printed and heat cured, the original dyes on the garment are being reduced, or "discharged", from the image area and the printed image is bonded to the fabric. The result is a brightly colored, opaque print which has been applied directly to a virtually "undyed" area of the fabric. These prints will have a very soft hand. Preprint Discharge is a discharge ink system designed for use as an underbase for plastisol overprinting on dischargeable fabrics. .