Method for lightening keratinic fibers with an emulsion containing an alcalin agent and an oxidising composition
A technology of keratin materials and alkaline reagents, which can be used in household packaging, packaging cosmetics, packaging item types, etc., and can solve the problems of fiber desalination and inability to obtain compositions, etc.
Inactive Publication Date: 2010-06-23
LOREAL SA
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0006] As far as the option to purely and simply replace all or part of the ammonia with one or more other standard alkalizing agents does not result in a composition as effective as an ammonia based composition, especially since these alkalizing agents Does not produce sufficient lightening of dyed fibers in the presence of oxidizing agents
Method used
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Experimental program
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Embodiment
[0210] The following compositions were prepared:
[0211] Embodiments of the invention
[0212] According to the phase inversion temperature method (PIT method), the following emulsion A1 was prepared:
[0213] making process:
[0214] 1. Heat phase A in a water bath with Rayneri stirring (400 rpm). A liquid white emulsion was obtained which became translucent (passing through the microemulsion phase) at about 68°C and thickened above this temperature.
[0215] 2. Once the emulsion has thickened, remove the water bath: allow the emulsion to cool with continuous stirring.
[0216] 3. Introduce Carbopol at about 50°C.
[0217] 4. On cooling to room temperature, introduce ethanol and monoethanolamine and readjust for evaporation loss (<5%).
[0218] This gave a translucent gelled emulsion with a droplet size of <1 μm (viscosity = 72 DUM4 (measured by rheomat), pH 11.5).
[0219]
[0220] In use, emulsion A1 is mixed by weight with an oxidized aqueous composition (B) com...
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Abstract
The invention provides a method for lightening keratinic fibers with an emulsion containing an alcolin agent and an oxidizing composition. The present disclosure therefore relates to a method for lightening keratin materials, in which the following are used: (a) a direct emulsion (A) comprising at least one fatty substance in an amount greater than 25% by weight, such as greater than 50%, at least one surfactant; at least one alkaline agent and an amount of water greater than 5% by weight, of the total weight of the emulsion, (b) a composition (B) comprising at least one oxidizing agent. It also relates to a multi-compartment device comprising, in one compartment, an emulsion (A), in another compartment a composition (B) comprising at least one oxidizing agent.
Description
technical field [0001] The present invention relates to a method of lightening human keratin material, especially hair. Background technique [0002] In most cases, the method of lightening keratin materials, such as human keratin fibers, involves the use of an aqueous composition comprising at least one oxidizing agent at an alkaline pH. The effect of this oxidizing agent is to degrade the melanin of the hair, producing more or less the claimed lightening of the fibers, depending on the nature of the oxidizing agent contained. Thus, for relatively mild desalination, the oxidizing agent is usually hydrogen peroxide. When stronger desalination is required, those used are usually made from peroxygenated salts such as persulfates in hydrogen peroxide. [0003] A problem arises because the desalination process is carried out under alkaline conditions, and the most commonly used alkaline agent is ammonia. Ammonia is particularly suitable for this type of method. The reason is...
Claims
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Patent Timeline
Login to View More IPC IPC(8): A61K8/20A61K8/22A61K8/33A61K8/34A61K8/36A61K8/37A61K8/38A61K8/41A61K8/44A61K8/39A61K8/49A61K8/92A61Q5/08A45D34/00
CPCA61Q5/08A61K8/062A61K8/31A61K2800/88A61K8/37A61K8/41A61K8/86
Inventor L·赫考特A·-L·伯纳德D·波尔多
Owner LOREAL SA