Process for assessing the presence of oxidizing agents on of ker

Details Process for assessing the presence of oxidizing agents on of ker Process for assessing the presence of oxidizing agents on of ker

1979-07-06

1981-06-02

Richman, Barry

Chemistry: physical processes

Physical processes

Crystallization

23230R, 422 56, G01N 3122, G01N 3340, G01N 3352

Patent

active

042709199

ABSTRACT:
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.

REFERENCES:
English Translation of Czechoslovak Pat. No. 125,017 (published 1/15/68)-Translation by U.S. P.T.O. on 10/5/73.

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