Abstract: A method for treating hair comprising applying at least one pigment onto hair for providing the basis for colouring hair in a more reproducible and reliable manner independently from a user's initial hair colour.

Abstract: The instant disclosure generally relates to a dual component hair coloring composition for coloring mammalian or synthetic keratin fibers, the composition comprising composition A comprising a cationic polymer, pigment microparticles and an aqueous medium, and comprising composition B comprising an anionic polymer, aqueous medium and optional cross linking agent. Optionally or alternatively composition B may contain pigment particles. The cationic and anionic polymers are at least partially soluble in the medium and the pigment microparticles are dispersed therein. The hair coloring composition forms a dual layer coating upon application to keratin fibers such as hair and has a substantially permanent pigment lastingness following development (setting); minimally alters the keratin fibers, upon application; and substantially eliminates development time. Methods of using such compositions are also described herein.

Abstract: A method for treating hair comprising applying at least one pigment onto hair for providing the basis for colouring hair in a more reproducible and reliable manner independently from a user's initial hair colour.

Abstract: A method and apparatus for calculating a composition for a preparation for treating hair fibers. The method comprises: obtaining (330) a target specification, wherein the target specification comprises one or more numerical parameters defining a desired appearance of the hair fibers; providing (340) a first computational model that relates a composition of a preparation to a predicted appearance of the hair fibers when treated by that preparation; and calculating (350), using the first computational model and the target specification, a composition for the preparation that is predicted to produce, if the hair fibers are treated with the preparation, an appearance similar or identical to the desired appearance.

Abstract: Composition for lightening keratin fibers, comprising: at least 20% weight of fatty substances free of carboxylic acid groups relative to the total weight of the composition, at least one alkalizing agent, at least one surfactant, and at least one oxidizing agent, wherein the concentration of oxidizing agent in the composition is from 1.5% to 2.5% by weight relative to the total weight of the composition.

Abstract: An agent for dyeing keratin fibers comprises a composition A comprising at least one alkalizing agent, at least one oxidative dye precursor, at least one surfactant and at least one fatty substance free of carboxylic acid groups and a composition B comprising at least one oxidizing agent and at least one surfactant. The concentration of fatty substances free of carboxylic acid groups after mixing composition A and composition B is at least 20% by weight relative to the total weight of the mixed composition A and B. The concentration of alkalizing agent after mixing composition A and composition B is not more than 1.75% by weight relative to the total weight of the mixed composition A and B.

Abstract: A method and apparatus for calculating a composition for a preparation for treating hair fibers. The method comprises: obtaining (330) a target specification, wherein the target specification comprises one or more numerical parameters defining a desired appearance of the hair fibers; providing (340) a first computational model that relates a composition of a preparation to a predicted appearance of the hair fibers when treated by that preparation; and calculating (350), using the first computational model and the target specification, a composition for the preparation that is predicted to produce, if the hair fibers are treated with the preparation, an appearance similar or identical to the desired appearance.

Abstract: Method for coloring hair wherein a non-diluted hair coloring composition is applied to the hair, e.g. the hair roots and a diluted hair coloring composition is applied to the hair, e.g. the hair lengths and tips, wherein a dilutant composition comprising water and/or a non-aqueous liquid is added to the non-diluted hair coloring composition to obtain the diluted hair coloring composition.

Abstract: A method and apparatus for assisting a user to compare appearances of fibers, the method including providing (210) a computational model describing the interaction of light with fibers; obtaining (220) a first set of fiber parameters for use with the model, said first set of fiber parameters describing a first plurality of fibers; obtaining (620) a second set of fiber parameters for use with the model, said second set of fiber parameters describing a second plurality of fibers; simulating (240), using the model and the first set of fiber parameters, how light would interact with the first plurality of fibers, and rendering (250) a first synthetic image; simulating (640), using the model and the second set of fiber parameters, how light would interact with the second plurality of fibers, and rendering (650) a second synthetic image; and displaying (270, 670) the first synthetic image and the second synthetic image.

Abstract: A method and apparatus for synthesizing an image showing fibers. The method comprises providing (210) a computational model describing the interaction of light with fibers; obtaining (220) a first set of fiber parameters, which describes a plurality of real fibers (160), for use with the model; modifying (230) the first set of fiber parameters, to produce a second set of fiber parameters describing a plurality of modified fibers; simulating (240), using the model and the second set of fiber parameters, how light would interact with the modified fibers; and rendering (250), based on the result of the simulation, a synthetic image showing the appearance of the modified fibers.

Abstract: Method for colouring hair wherein a non-diluted hair colouring composition is applied to the hair, e.g. the hair roots and a diluted hair colouring composition is applied to the hair, e.g. the hair lengths and tips, wherein a dilutant composition comprising water and/or a non-aqueous liquid is added to the non-diluted hair colouring composition to obtain the diluted hair colouring composition.

Abstract: A method of imparting hair strand effects may include identifying each of a plurality of hair strands to which to apply a hair strand effect product independently and individually, the plurality of hair strands associated with an illustration of at least one type of hair strand effects and one of a plurality of hair styles, and applying the product to each of the plurality of hair strands independently and individually subsequent to identifying the plurality of hair strands. In the alternative or in combination, a hair instruction guide may be consulted, the guide having at least one strand size associated with one of the plurality of types of hair strand effects, and a strand of hair may be identified according to the at least one strand size. A system for creating a hair strand effect may include a hair strand effect product and such a hair instruction guide.

Abstract: The present invention relates to a method for coloring hair wherein a hair coloring composition is applied to the hair roots. The hair coloring composition is then diluted with a dilutant component and the diluted hair coloring composition is applied to the hair lengths and tips.

Abstract: A method of imparting hair strand effects may include identifying each of a plurality of hair strands to which to apply a hair strand effect product independently and individually, the plurality of hair strands associated with an illustration of at least one type of hair strand effects and one of a plurality of hair styles, and applying the product to each of the plurality of hair strands independently and individually subsequent to identifying the plurality of hair strands. In the alternative or in combination, a hair instruction guide may be consulted, the guide having at least one strand size associated with one of the plurality of types of hair strand effects, and a strand of hair may be identified according to the at least one strand size. A system for creating a hair strand effect may include a hair strand effect product and such a hair instruction guide.

Abstract: A system to highlight the hair includes a device (10) and a composition (50). The device (10) includes a first portion movably joined to a second portion. Composition (50) includes a percentage of hydrogen peroxide and a percentage of an alkalizer by weight of the composition (50). The weight percentages of hydrogen peroxide and of an alkalizer are defined by equation (I): X+1.5Y?15 (I). X is the percentage by weight of hydrogen peroxide by weight of the composition (50). Y is the percentage by weight of an alkalizer by weight of the composition (50). The composition (50) includes at least 2% of hydrogen peroxide by weight of the composition (50) and the alkalizer is an inorganic salt. The composition (50) allows to perform highlighting when applied with the device (10).

Abstract: A method of imparting hair strand effects may include identifying each of a plurality of hair strands to which to apply a hair strand effect product independently and individually, the plurality of hair strands associated with an illustration of at least one type of hair strand effects and one of a plurality of hair styles, and applying the product to each of the plurality of hair strands independently and individually subsequent to identifying the plurality of hair strands. In the alternative or in combination, a hair instruction guide may be consulted, the guide having at least one strand size associated with one of the plurality of types of hair strand effects, and a strand of hair may be identified according to the at least one strand size. A system for creating a hair strand effect may include a hair strand effect product and such a hair instruction guide.

Abstract: The present invention relates to an applicator (1) which allows for precise, non-messy and even application of a hair treatment composition to a hair strand. The applicator (1) comprises a plate (10) movably joined by a connection (30) to a well (20), a hair orientation means on the internal surface (101) of the plate (10) which extends towards the well (20) and a fluid metering means comprising a lower metering means (50) on the rim (222) of the well (20) and an upper metering means (60) on the internal surface of said plate (10), wherein said upper metering means (60) and lower metering means (50) independently comprise at least one resilient strip (13). When said applicator (1) is in a closed state, the lower metering means (50) and the upper metering means (60) are substantially juxtaposed to provide said fluid metering means.

Abstract: The present invention relates to a system to highlight the hair. The system comprises a device (10) and a composition (50). Device (10) comprises a first portion movably joined to a second portion. Composition (50) comprises a percentage of hydrogen peroxide and a percentage of an alkalizer by weight of said composition (50). The weight percentages of hydrogen peroxide and of an alkalizer are defined by equation (I): X+1.5Y?15 (I) wherein X is the percentage by weight of hydrogen peroxide by weight of the composition (50) and wherein Y is the percentage by weight of an alkalizer by weight of the composition (50). Said composition (50) comprises at least 2% of hydrogen peroxide by weight of said composition (50) and said alkalizer is selected from one or more inorganic salts.

Abstract: The present invention relates to a system to highlight the hair. The system comprises a device (10) and a composition (50). Device (10) comprises a first portion movably joined to a second portion. Composition (50) comprises a percentage of hydrogen peroxide and a percentage of an alkalizer by weight of said composition (50). The weight percentages of hydrogen peroxide and of an alkalizer are defined by equation (I): X+1.5Y?15 (I) wherein X is the percentage by weight of hydrogen peroxide by weight of the composition (50) and wherein Y is the percentage by weight of an alkalizer by weight of the composition (50). Said composition (50) comprises at least 2% of hydrogen peroxide by weight of said composition (50) and said alkalizer is an inorganic salt selected from the group consisting of sodium silicate, sodium metasilicate, potassium hydrogen carbonate, ammonium carbonate, ammonium hydrogen carbonate and sodium hydrogen carbonate and mixtures thereof.

Abstract: The present invention relates to a hair treatment applicator (1), which comprises a plate (10) and a containment portion (20) movably joined by a connection (30) so that said applicator (1) may alternate between a closed state and an open state. At least one member (40), which is continuous and liquid impervious, projects from the substantially flat internal surface (101) of the plate (10). The hair treatment applicator according to the invention allows for precise, non-messy and even application of a hair treatment composition to the hair, in particular to a hair strand and preferably to a bundle of hair strands.