Search

The article examines the effect of peroxide attack on reactive dyes. It indicates that the cumulative effect of peroxide attack led to some retailers repeating the International Organization for Standardization (ISO) 105 C06-C2 three times to verify the fastness of dyeings to repeated detergent washing. It suggests that the detergent for washing below the temperature of 50-60 degree celcius must contain a perborate activator, which is tetra acetyl ethylene diamine (TAED) in Europe and nonanoyloxibenene sulphonate (NOBS) in the U.S. A 20 wash test found that a concentration of 12 grams/liter (g/l) of perborate in just one wash was equivalent to the 20 consecutive ISO 105 C06- C2 tests with 1 g/l.