Method for determining parameters specific to the custom-made coloring of the hairs of a given individual

Patent metadata

Field	Value
Publication number	US-12446679-B2
Application number	US-202017442365-A
Country	US
Kind code	B2
Filing date	Mar 25, 2020
Priority date	Mar 26, 2019
Publication date	Oct 21, 2025
Grant date	Oct 21, 2025

Abstract

The present invention relates to a method for determining a parameter specific to the custom-made coloring of hairs of a given individual, the method including the following steps:
receiving magnitudes representative of a first target color and of a first initial color in a colorimetric space, determining a cosmetic product composition according to magnitudes received and a colorimetric rendering model, applying a cosmetic product having the determined composition on the hairs to be colored of the individual in order to obtain colored hairs, evaluating the color of the colored hairs in order to a magnitude representative of a first final color in the colorimetric space, and determining a colorimetric deviation parameter specific to the individual according to magnitudes representative of the first final color and of the first target color.

First claim

The invention claimed is:

1. A method for determining at least one characteristic non-colorimetric parameter of hairs of a given individual, the method for determining the at least one characteristic non-colorimetric parameter comprising the steps of:
receiving a colorimetric deviation parameter specific to the given individual, and,
determining at least one characteristic non-colorimetric parameter of the hairs of the given individual from the colorimetric deviation parameter received;
the colorimetric deviation parameter being able to be obtained by a method for determining at least one parameter specific to the custom-made coloring of hairs of the given individual, according to a colorimetric rendering model, the method for determining the at least one parameter specific to the custom-made coloring of hairs comprising an initialization phase corresponding to a first coloring of the hairs of the individual, the initialization phase comprising the steps of:
receiving at least one magnitude representative of a first target color in a colorimetric space,
receiving at least one magnitude representative of a first initial color in the colorimetric space, the first color being the color of the hairs to be colored of the individual,
determining a cosmetic product composition according to the magnitudes representative of the first initial color and of the first target color and of the colorimetric rendering model,
applying a cosmetic product having the determined composition on the hairs to be colored of the individual in order to obtain colored hairs,
evaluating the color of the colored hairs in order to obtain at least one magnitude representative of a first final color in the colorimetric space, and
determining at least one colorimetric deviation parameter specific to the individual according to the magnitudes representative of the first final color and of the first target color;

wherein the determining of the at least one characteristic non-colorimetric parameter of the hairs is carried out to adapt the care provided to the hairs in order to color the hairs of the individual or the type of cosmetic products to be applied on the hairs in order to color the hairs; and the method for determining the at least one characteristic non-colorimetric parameter of hairs is implemented by a device;
wherein the receiving of the at least one magnitudes representative of the first target color and of the first initial color are implemented via a man-machine interface;
wherein the determining of the cosmetic product composition is implemented by a controller in interaction with a computer program product;
wherein the evaluating of the color of colored hairs is implemented by a colorimetric measuring unit; and
wherein the determining of the at least one colorimetric deviation parameter is implemented by the controller in interaction with the computer program product.

2. The method according to claim 1 , wherein the method comprises a step of memorizing the colorimetric deviation parameter as historical data specific to the given individual.

3. The method according to claim 1 , wherein the method comprises a customization phase corresponding to a second coloring of the hairs of the individual, the customization phase comprising the steps of:
receiving at least one magnitude representative of a second target color in the colorimetric space,
receiving at least one magnitude representative of a second initial color in the colorimetric space, the second color being the color of the hairs to be colored of the individual,
determining a cosmetic product composition according to the magnitudes representative of the second initial color and of the second target color, of the colorimetric rendering model and of the colorimetric deviation parameter determined during the initialization phase.

4. The method according to claim 3 , wherein the customization phase comprises:
a step of applying a cosmetic product having the determined composition on the hairs to be colored of the individual in order to obtain colored hairs, and
a step of evaluating the color of the colored hairs in order to obtain at least one magnitude representative of a second final color in the colorimetric space.

5. The method according to claim 4 , wherein the customization phase comprises an updating phase, where applicable, of the colorimetric deviation parameter specific to the individual according to the magnitudes representative of the second final color and of the second target color.

6. The method according to claim 3 , wherein the customization phase is repeated for each new coloring of the hairs of the given individual according to at least the last colorimetric deviation parameter determined.

7. The method according to claim 6 , wherein the time interval between two successive customization phases is at least one week, preferably at least three weeks.

8. A method for formulating a cosmetic composition specific to the custom-made coloring of hairs of a given individual according to a colorimetric rendering model, the method comprising the steps of:
receiving at least one colorimetric deviation parameter specific to the given individual, said parameter being able to be obtained by a determination method according to claim 1 ,
receiving at least one magnitude representative of a first target color in a colorimetric space,
receiving at least one magnitude representative of a first initial color in the colorimetric space, the first color being the color of the hairs to be colored of the individual,
determining a cosmetic product composition according to the magnitudes representative of the first initial color and of the first target color, of the colorimetric rendering model and of the colorimetric deviation parameter specific to the individual, and
manufacturing a cosmetic product having the determined composition.

9. A method of custom-made coloring of hairs of a given individual, the coloring method comprising a step of applying a cosmetic composition on the hair of the individual, the cosmetic composition having been formulated according to the formulation method claim 8 .

10. The method according to claim 1 , wherein the or at least one non-colorimetric parameter is selected from the group consisting of: a permeability factor of the hairs of the individual, a rising factor of each colorant of the cosmetic product in the hairs of the individual, a resistance to oxidation of the hairs of the individual and a relationship between the eumelanin contained in the hairs of the individual with the pheomelanin contained in the hairs of the individual.

11. A device for determining at least one parameter specific to the custom-made coloring of hairs of a given individual, according to a colorimetric rendering model, the device being configured to implement at least one step of a determination method according to claim 1 comprising a controller comprising:
a man-machine interface configured to implement each receiving step of the determination method, and
a processing unit configured to implement at least the steps of determining a composition and of determining at least one deviation parameter.

12. A system for formulating a cosmetic composition specific to the custom-made coloring of hairs of a given individual, the system being configured to implement a formulation method according to claim 8 , the system comprising a plurality of functional cosmetic mixtures stored in separate containers, the functional cosmetic mixtures being able to be combined with one another in order to form the cosmetic composition determined, the system being configured to distribute at least two functional cosmetic mixtures, each o

Assignees

• Oreal

Inventors

• Askenazi Benjamin
• Aubert Johan
• Bazin De Bezons Jean-Dominique
• Leseur Olivier
• Roncin Romain

Classifications

• B01F33/8442

  using a computer for controlling information and converting it in a formula and a set of operation instructions, e.g. on the point of sale · CPC title

• G06Q50/10

  Services · CPC title

• G06Q30/0621 Primary

  by configuring or customising goods or services · CPC title

• B44D3/003

  Methods or devices for colour determination, selection or synthesis, e.g. use of colour tables · CPC title

• A61B5/448

  Hair evaluation, e.g. for hair disorder diagnosis · CPC title