Henkel Ag & Company, Kgaa

Astrid Kroos

Ralph Nemitz

Antje Gebert-Schwarzwaelder

Wibke Gross

Georg Knuebel

Helmut Giesa

Annika Koenen

Katja Guenther

Frank Janssen

Hartmut Manneck

Astrid Kleen

Melanie Moch

Lucile Bonnin

Antje Gebert

Hans Georg Knuebel

Erik Schulze Zur Wiesche

Meike Voss-Klimke

Wilfried Howorka

Georg Knübel

Antje Gebert-SCHWARZWÄLDER

Wibke Groß

Oliver Seiler

Ludger BÜTFERING

Frank JANßEN

Katja GÜNTHER

A method for determining a greyness level of a strand of hair and a system adapted to implement this method are provided. First, an image of the strand of hair representing it according to a predefined representation standard is obtained. The image comprises a portion representing the strand of hair with pixels. Then, for each pixel of the portion, a luminance value is determined. After that an amount of pixels in the portion for which the determined luminance value is above a threshold luminance value is determined. Finally, the greyness level of the strand of hair is determined by estimating a ratio of the determined amount of pixels over a total amount of pixels in the portion.

Method for determining a greyness level of a strand of hair

An arrangement for determining a degree of stretching of hair is provided. The arrangement includes a detection unit for detecting hair characteristics and an evaluation unit for evaluating the detected hair characteristics and for determining the degree of elongation of hair based on the detected hair characteristics. The detection unit contains a near-infrared sensor, and is configured to irradiate a hair sample with electromagnetic waves in the infrared range and to detect an absorbance of the hair sample in a wavelength range from about 800 to about 2500 nm. The acquisition unit is configured to generate an absorption spectrum of the hair sample in the wavelength range of from about 800 to about 2500 nm and provide it to the evaluation unit and the evaluation unit is configured to compare the generated absorption spectrum with a calibration model and to determine a degree of elongation of the hair sample.

Determination of a degree of elongation of hair using a NIR sensor

The present disclosure relates to a method for determining a user-specific hair treatment with determination and inclusion of the degree of damage of the hair. To this end, the content of cysteic acid is firstly determined with the aid of near-infrared and/or infrared spectra of the keratin fibres of an individual and a degree of damage is derived via a calibration model. Individual treatment advice is output on the basis of the determined degree of damage.

Method for determining a user-specific hair treatment

A multi-component packaging unit (kit of parts) for lightening keratinous fibres, in particular human hair, which includes, formulated separately from one another,  Also, a method for lightening hair, in which the multi-component packaging unit as contemplated herein is used.

Product for lightening hair, containing special oxo-carboxylic acids

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.

Method and device for determining a degree of damage to hair

A method, usage and kit-of-parts for decolorizing human keratin fibers, which were colored with oxidation dyes and/or partially-oxidizing dyes, comprising the application of an agent to the dyed keratin fibers, which contains in a cosmetic carrier at least one compound of the Formula (I)  

Method for decolorizing dyed keratinic fibers

The present disclosure relates to agents for the oxidative coloring of keratinic fibers, which are characterized in hat they contain derivatives of anisole as novel developer molecules.

Agent for oxidative dyeing of hair containing anisole derivatives

The subject matter of the present disclosure are agents for stabilizing keratin fibers, more particularly human hair, containing in a cosmetic carrier: whereinX denotes oxygen (&#x2014;O&#x2014;), sulfur (&#x2014;S&#x2014;) or a grouping &#x2014;NR&#x2014;.

Agent for stabilizing keratin fibers with 5-ring heterocycles

The present disclosure relates to agents for dyeing keratin fibers, in particular human hair, containing, in a cosmetic carrier (a) at least one direct dye of formula (I), wherein Y1, Y2 independently represent a nitrogen atom or a group C&#x2014;R9, and Q represents a special linker group of formula (II), (III), (IV) or (V), (b) at least one anionic surfactant and/or at least one cationic surfactant.

Agents for dyeing keratin fibers, containing at least one dimeric, dicationic azo dye and at least one anionic and/or cationic surfactant

The disclosure relates to agents for dyeing keratin fibers, in particular human hair, containing, in a cosmetic carrier (a) at least one direct dye of formula (I), wherein Het1, Het2 represent cationic heterocycles; R1, R3 respectively represent a substitute which is not hydrogen, and Q represents a grouping of formula (VIII), (IX), or (X).

Agents for dyeing keratin fibres, containing at least one dimeric, dicationic azo dye with special substitution pattern

The subject matter of the present disclosure includes agents for lightening keratin fibers, more particularly human hair, containing in a cosmetic carrier:  A further subject matter of the present disclosure includes a kit-of-parts in which the aforementioned components exist packed separately in two agents (A) and (B).

Alkaline agent for lightening hair containing oxidants and special carboxylic acid esters

Agents for oxidatively dyeing of keratinic fibers include in a cosmetic carrier, (A) as a developer, 4,5-diamino-1-(2-hydroxyethyl)-1H-pyrazole and/or one of the physiologically acceptable salts thereof, (B) as a developer, p-aminophenol and/or one of the physiologically acceptable salts thereof, (C) as a coupler, 2,6-bis(2'-hydroxyethylamino)-1-methylbenzene and/or one of the physiologically acceptable salts thereof, and (D) as a coupler, at least one m-dihydroxybenzene derivative from the group consisting resorcinol, 2-methylresorcinol and/or 4-chlororesorcinol as coupler.

Agents for oxidatively dyeing hair, containing specific combinations of developers and couplers

An agent for oxidatively dyeing of keratinic fibers includes, in a cosmetic carrier, (A) 4,5-diamino-1-(2-hydroxyethyl)-1H-pyrazole and/or one of the physiologically acceptable salts thereof as developer, (B) at least one pyrimidine derivative selected from 2,4,5,6-tetraaminopyrimidin, 4-hydroxy-2,5,6-triaminopyrimidin, 2-hydroxy-4,5,6-triaminopyrimidin and/or one of the physiologically acceptable salts thereof as developer, (C) at least one m-diaminobenzene derivative selected from 2-(2,4-diaminophenoxy)ethanol, 1-methoxy-2-amino-4-(2'-hydroxyethylamino)benzene, 2,6-bis(2&#x2032;-hydroxy-ethylamino)-1-methylbenzene, and/or one of the physiologically acceptable salts thereof as coupler, and (D) at least one m-dihydroxybenzoyl derivative selected from resorcinol, 2-methylresorcinol and/or 4-chlororesorcinol as coupler.

Means for the oxidative dyeing of hair containing specific combinations of developers and couplers

Agents for coloring and/or matting keratinic fibers, in particular human hair, include in a cosmetic carrier at least one specific substituted 1,4-diaminoanthraquinone derivative of formula (I), wherein the residues (R2, R4) mutually independently denote a grouping of formula (II). The cosmetic method of using these agents can be for producing intense blue shades and for matting keratin fibers. 

Means for dyeing and/or matting keratinic fibres containing novel 1,4 diaminoanthraquinone dyes

The present specification provides for an agent for coloring keratinic fibers. The agent includes, a cosmetic carrier, a compound of formula (I), R1 and R2 independently of one another denote hydrogen, a C-Calkyl group, a C-Calkenyl group, a hydroxyl group, a halogen, a C-Calkoxy group, an amino group, a nitro group, an acetyl amino group, or a sulfonamide group; or when in ortho-position to one another, form a 5- or 6-membered, saturated or unsaturated ring, which optionally include further heteroatoms.

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Monheim, Germany

Astrid Kroos