| 摘要 |
A process for assessing the state of surface oxidation of keratin fiber(s), especially human hair, which results following treatment with, inter alia, peroxides and bromates. This process involves applying a porous support to the wet fiber(s) to be assessed, which support has previously been impregnated with an oxidation indicator which is a solution of iodide ions, the normality of which is from 0.2 N to 10 N, the solution also containing from 20 g/liter to 200 g/liter of solubilized starch in a buffered acid medium, and, while the porous support is in contact with the fiber(s), applying to the support a solution of a strong acid, as developer, and subsequently removing the support and examining whether or not there has been a change in the initial coloration of the support. |
