Patent · US Active

Method for determining a cross-manufacturer hair dye recommendation

US11311093B2 · kind B2 · utility

0Cited by

2References

15Claims

0Family size

Assignee

Henkel AG & Co. KGaA · DE

Inventors

Hans Georg Knuebel · Goldkronach, DE
Annika Koenen · Grevenbroich, DE
Lucile Bonnin · Dressendorf, DE

Key dates

Filing date	Oct 1, 2018
Grant date	Apr 26, 2022
Priority date	—
Expiry date	Mar 6, 2039

Classification

Technology area (CPC A)Human Necessities
CPC primaryA45D2044/007
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for determination of a cross-manufacturer hair coloration agent recommendation is provide. The method includes the allocation of a number of hair coloration agents to respectively one standard source hair color of a number of source hair colors, a coloration of hair samples with the number of hair coloration agents, a colorimetric measurement of the number of hair samples, a determination of a color difference between each of the number of colors, an allocation of each of the hair coloration agents with unknown composition to one of the hair coloration agents with known composition in such a way that the color difference is minimized, a determination of the user source hair color, a determination of the user's desired hair color, a determination of a first recommended hair coloration agent from the number of hair coloration agents of known composition and of a second recommended hair coloration agent.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.