METHOD FOR LESSING HAIR COLORING (VERSIONS) AND COMPOSITIONS FOR ITS IMPLEMENTATION Russian patent published in 2021 - IPC A61K8/00 A61Q5/10 

FIELD: hairdressing.

SUBSTANCE: group of inventions relates to the field of hairdressing and is a method of glazing hair dyeing, which is carried out by step-by-step layer-by-layer application of the necessary compositions to the hair mass, providing constant control over the process, including preparing the hair for dyeing to obtain a hair mass aligned along the entire length in quality and color, and reduced to a neutral tone, and dyeing with a dye diluted with an oxidizing agent, to obtain transparency of the applied dye layers on the hair mass; preparation for staining is carried out using diffusion compositions, which are a mixture of components, where shampoo is used as an active substance; coloring is carried out using diffusion compositions, which are a mixture of components containing at least one oxidative dye and an oxidizing agent of low concentration. The invention also includes diffusion compositions for implementing the method: acidic diffusion; brightening diffusion; decolorizing diffusion; coloring diffusion; prepigment diffusion; lightening and prepigmenting diffusion; neutralizing diffusion; diffusion mix brightening and neutralizing; artistic diffusion; diffusion maxmix neutralizing, prepigmenting, brightening, coloring; diluted diffusion; diffusion with direct pigments; clay diffusion.

EFFECT: obtaining a persistent, even, predictable color on hair, even damaged, gray and/or previously dyed, in one procedure, which consists of a step-by-step gentle (less damaging) preparation of hair for dyeing, including alignment in color and quality, neutralization of the lightening background, applying a substrate under the desired color and followed by a glaze dyeing with the main color of the prepared hair strip, i.e. repeated application of thin, transparent layers of the dye composition to the hair, in layers, color for color, including the necessary subsequent refinement and final glaze.

96 cl, 2 tbl