"Dye Catcher" washing sheets to catch excess dyes
Wash mixes colors with confidence - it captures dye particles that are released into the wash water and prevents fading. Use 1 sheet of Dye CatcherTM for every 4 kg (8.8 lbs) of fabric. For hand or machine wash. For all wash temperatures and all high-dye fabrics. Each box contains 20 sheets.
I recommend washing red or purple fabrics which are more likely to release excess dye on the first wash.