Dye-Transfer Inhibition of Orange II with Peroxidase-Hydrogen Peroxide Bleaching System.

Abstract

The transfer of dissolved Orange II to various fabrics was measured at pH9.0 and 20°C in the presence of horseradish peroxidase (HRP) and hydrogen peroxide. HRP inhibited the transfer of dissolved Orange II to wool, polyester, acryl and modacryl. On the other hand, Orange II transfered to cotton, silk and nylon. The amount of transfered Orange II to no-dyed nylon decreased with increasing decoloration rate of Orange II. The color differences observed in no-dyed cotton, silk and nylon with HRP was about 2-3 times lower than those observed with percarbonate at pH11.5 and 20°C . The color difference of no-dyed nylon with percarbonate was about the same as that with HRP, when percarbonate was used at pH11.5 and 70°C. No decoloration of Orange II-dyed nylon occurred during washing in the presence of HRP and hydrogen peroxide. However, the Orange II-dyed nylon was decolored using percarbonate at pH11.5 and 70°C. These results indicate that HRP is more useful than percarbonate for inhibition of dye transfer.