Method and device for determining a degree of damage to hair

US10955344B2 · kind B2 · utility

Assignee

• Henkel AG & Co. KGaA · DE

Inventors

• Georg Knuebel · Goldkronach, DE
• Antje Gebert-Schwarzwaelder · Neuss, DE
• Annika Koenen · Grevenbroich, DE
• Astrid Kroos · Monheim, DE
• Melanie Moch · Dormagen, DE
• Wilfried Howorka · Goldkronach, DE

Key dates

• Filing date: May 5, 2017
• Grant date: Mar 23, 2021
• Expiry date: Jul 12, 2037

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2201/12746
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for determining a degree of damage to hair is provided in the form of various embodiments. Said method can comprise the following steps: during the exposure of a hair sample to UV light (for example by employing a UV-LED), detecting fluorescence light emitted by the hair sample, determining a fluorescence intensity by employing the detected light, and determining the degree of damage to the hair using said fluorescence intensity.