Novel composition for hair dyeing

Abstract

The present invention relates to a new composition for dyeing hair that contains amino acids, proteins, alcohols, mineral powders, vegetable oils, and dyes or pigments, and a method for dyeing hair that implements the composition.

Description

[Technical field]

[0001] The present invention relates to a novel composition for dyeing hair comprising amino acids, proteins, alcohol, mineral powders, vegetable oils and dyes or pigments, and to a method for dyeing hair implementing said composition. [Background technology]

[0002] In the field of hair care, coloring is a hair styling technique that makes it possible to dye the hair permanently or temporarily.

[0003] Consumers wishing to dye their hair not only seek to obtain an intense and lustrous color with dyeing that is as natural as possible, but also to obtain long-term durable results, especially by being resistant to subsequent shampooing.

[0004] To transform hair dyes to last longer, chemical treatments called oxidation dyes are commonly used. These treatments change the pigment of the hair in the cortex by denaturing the melanin. Such treatments allow to achieve a dyed visual appearance that can withstand for several months. The first treatment for dyeing hair in this way is based on the principle of oxidative combination of two precursor components called base and coupler. The oxidation stage is carried out with an ammonia solution with high fiber swelling capacity in a basic solvent (pH 9.5-10.5) and in the presence of hydrogen peroxide. This technique is particularly robust and compatible with all types of hair, but nevertheless requires strict compliance with the conditions of use recommended by the supplier, especially with regard to the precautions regarding the method of application and the leaving time. They are also recognized as sensitizing and having a high allergenic potential. In addition, the bases used consist of aromatic diamines such as paraphenylenediamine (PPD), 1,4-piaminobenzene, p-phenylenediamine or p-aminoaniline. These ingredients are known to be toxic and are banned in many cosmetic products. The couplers themselves consist of diphenols such as resorcinol, resorcin, 1,3-benzenediol, 1,3-dihydroxybenzene or m-dihydrobenzene. These components are also classified as toxic and dangerous.

[0005] The second treatment is based on the use of powders of coloring plants or henna. It is called "vegetable dyes" and these treatments are considered more natural, but are not without unfavorable consequences. In fact, henna powders contain traces of mercury and arsenic by nature. In addition, the use of henna must generally be accompanied by the use of couplers such as sodium picramate and / or aromatic diamines (PPD) to obtain a visible result that covers more or less and lasts for a long time. This treatment therefore also carries a risk of toxicity due to skin contact. In addition, handling these treatments is laborious and requires several applications at intervals, with leaving times ranging from 60 to 180 minutes, to obtain an acceptable final result that lasts for a long time.

[0006] Finally, these treatments are incompatible with other chemical or organic treatments, as they leave an impermeable film around the fibers, preventing the passage of other products. The use of other treatments, such as straighteners, perms, or lightening agents, can also cause hair destruction through the interaction of traces of mercury with the ammonia present in it.

[0007] New complementary treatments have been developed to provide hair dyeing without chemical damage. These treatments are based on the use of cationic dyes, called direct or basic dyes. They have great affinity with keratin, but do not have the ability to remain on the hair in a long-lasting manner. In fact, the cationic dyes are only deposited on the periphery of the fiber so as not to damage it. Being less robust, the treatments disappear quickly after a few shampoos. Summary of the Invention [Problem to be solved by the invention]

[0008] Thus, there remains a need in the present invention to develop a composition that is easy to apply, does not deteriorate the quality of the hair and makes it possible to dye the hair in an effective and long-lasting manner.

[0009] Furthermore, a composition has now been found which allows for effective and long-lasting hair dyeing with an easy to carry out application method, which composition maintains the quality of the hair. [Means for solving the problem]

[0010] The present invention relates to Amino acids constituting proteins selected from aspartic acid, glutamic acid, asparagine, carnitine, cysteine, glutamine, histidine, leucine, isoleucine, methionine, N-phenylalanine, proline, hydroxyproline, threonine, tryptophan, tyrosine, valine, glycine, alanine, serine, beta-alanine, taurine, lysine and arginine, or salts, acids or bases, organic or inorganic substances thereof; protein, alcohol, Mineral powder, vegetable oil, Dyes or pigments, The present invention relates to a composition for dyeing hair comprising: Effect of the Invention

[0011] The composition according to the invention allows for effective and long-lasting dyeing, preserving the quality of the hair, in particular due to the absence of oxidizing phases, aromatic diamines, diphenols and ammonia in basic solvents, according to an easier application method, which is carried out without the use of oxidizing mixtures and in which the dye coloring is instantaneous, without long standing times.Furthermore, the invention allows for the use of all types of dyes, in particular cationic dyes, direct dyes and vegetable dyes. [Brief description of the drawings]

[0012] [Figure 1] 1 is a photograph of hair before treatment with a composition according to the present invention. [Diagram 2] Photograph of hair after treatment with a composition according to the present invention. [Diagram 3] 1 is a microscopic image of the structure of hair after treatment with a composition according to the invention. [Figure 4] 1 is a photograph of hair before treatment with a composition according to the present invention. [Diagram 5] Photograph of hair during treatment with a composition according to the present invention. [Figure 6] Photograph of hair after treatment with a composition according to the present invention. [Figure 7] Photograph of hair after treatment with a composition according to the present invention. [Figure 8] Photograph of hair after treatment with a composition without amino acids. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] In the context of the present invention: By "hair dyeing" is to be understood any treatment that transforms natural hair dyes in order to restore or completely change the shade.

[0014] By "vegetable oil" is to be understood any lipid extracted from oleaginous plants, ie plants that contain lipids in their seeds, nuts or fruits.

[0015] By "protein" it is to be understood any protein, heteroprotein or protein derivative grafted onto a heteromolecule such as silicone, carbohydrate compounds, fatty acids or derivatives, surfactants of anionic, cationic, nonionic or amphoteric nature, of various sizes and shapes, loaded with amino acids and formed from one or more chains linked by peptide bonds. Preferably, the protein is of tertiary or quaternary structure.

[0016] "Cx-Cy-alkyl" is to be understood as a saturated, straight or branched hydrocarbon-based chain containing x to y carbon atoms.

[0017] By "alcohol" is meant any straight or branched carbon chain containing 1 to 10 carbon atoms substituted with a hydroxyl group, an amino alcohol, an aldol or a ketol. Preferably, the "alcohol" has the formula C n H 2n+1 OH (wherein n is an integer between 1 and 10).

[0018] By "polyol" it is meant any C1-C10 alkyl group substituted with at least two hydroxyl groups. Preferably, "polyol" is meant to be any compound selected from glycerin, propylene glycol, propane-1,3-diol or sorbitol.

[0019] "Mineral powder" refers to magnesium (Mg 2+ ), Calcium (Ca2+ ), Sodium (Na + ) and potassium alum (KAl(SO4)2·12H2O).

[0020] By "dye" is meant any soluble substance containing a chromophore and an auxochrome. Examples of dyes include, in particular, azo dyes (or naphthols), such as benzimidazolone yellow or orange; anthraquinone dyes, such as alizarin, pupulin or indanthrene blue; indigo dyes, such as indigo or indigo carmine; polymethine dyes, such as rose or anthocyanin purple; acidic (or anionic) dyes, such as patent blue or fluorescein yellow; basic (or cationic) dyes, such as malachite green, veronic yellow or fusin; direct (or substantial) dyes, such as curcumin or cochineal; oxidation dyes, which require a base and a coupler, for example, paraphenylenediamine as the base and 4-dinitrobenzene as the coupler; and vegetable dyes, such as madder or indigofera tinctoria.

[0021] By "pigment" is to be understood any dyeing substance, natural or synthetic, which is insoluble in the solvent to be dyed. Examples of pigments include inorganic pigments such as ochre, red clay or lapis lazuli, or organic pigments such as murex or sepia.

[0022] Moreover, in the context of the present invention, unless otherwise stated, the proportions expressed in % correspond to percentages by weight relative to the total weight of the entities considered.

[0023] Thus, the composition according to the invention contains amino acids, proteins, alcohol, mineral powders, vegetable oils, and dyes or pigments.Preferably, the present invention relates to the above-mentioned composition having the following characteristics, taken alone or in combination:

[0024] The amino acids are selected from aspartic acid, glutamic acid, asparagine, carnitine, cysteine, glutamine, histidine, methionine, proline, hydroxyproline, tyrosine, glycine, alanine, serine, beta-alanine, taurine and arginine. Particularly preferably, the amino acids are selected from glutamic acid, cysteine ​​and arginine.

[0025] The composition contains 0.1% to 20% of amino acids as defined above, preferably 0.1% to 5% of amino acids as defined above, more preferably 0.1% to 3% of amino acids as defined above.

[0026] The protein is selected from optionally hydrolyzed creatine, optionally hydrolyzed keratin, optionally hydrolyzed wheat protein, optionally hydrolyzed silk protein, optionally hydrolyzed vegetable keratin, optionally hydrolyzed soy protein, optionally hydrolyzed collagen, optionally hydrolyzed elastin, optionally hydrolyzed pea protein, optionally hydrolyzed rice protein, optionally hydrolyzed conchiolin protein and optionally hydrolyzed whey protein.

[0027] More preferably, the protein is selected from optionally hydrolyzed creatine, optionally hydrolyzed keratin, optionally hydrolyzed silk protein, optionally hydrolyzed vegetable keratin, optionally hydrolyzed soy protein, optionally hydrolyzed collagen, optionally hydrolyzed elastin, optionally hydrolyzed pea protein, optionally hydrolyzed rice protein, optionally hydrolyzed conchiolin protein and optionally hydrolyzed whey protein.

[0028] Particularly preferably, the protein is selected from creatine, keratin, optionally hydrolyzed silk protein, and optionally hydrolyzed soy protein.

[0029] The composition contains 0.1% to 20% of the protein defined above, more preferably 0.1% to 10% of the protein defined above, and particularly preferably 0.1% to 5% of the protein defined above.

[0030] The alcohol is selected from butanol, isopropanol, ethanol and benzyl alcohol, more preferably the alcohol is ethanol or benzyl alcohol.

[0031] The composition contains from 0.5% to 20% of an alcohol as defined above, more preferably from 0.5% to 10% of an alcohol as defined above, and particularly preferably from 0.5% to 4% of an alcohol as defined above.

[0032] Vegetable oil contains at least 1% chamazulene or carboxylic acid.More preferably, vegetable oil is selected from sweet almond oil, olive oil, argan oil, chamomile oil, Roman chamomile oil, harem oil, babassu oil, broccoli oil, avocado oil, linseed oil, apricot oil, cucumber oil, black seed oil, Brazil nut oil, grape seed oil, shea olein, sesame oil and tomato oil.Particularly preferably, vegetable oil is selected from chamomile oil or Roman chamomile oil.

[0033] The composition contains from 1% to 15% of a vegetable oil as defined above, more preferably from 1% to 10% of a vegetable oil as defined above, particularly preferably from 1% to 8% of a vegetable oil as defined above.

[0034] The mineral powder contains 1% or more of potassium or aluminum potassium disulfate. Preferably, the mineral powder is selected from kaolin powder, tartaric acid powder, alum powder, calcium carbonate powder, potassium carbonate powder, cod powder, titanium oxalate, and magnesium powder. Particularly preferably, the mineral powder is selected from alum powder or tartaric acid powder.

[0035] The composition contains 0.1 to 20% of a mineral powder as defined above, more preferably 0.1 to 10% of a mineral powder as defined above, particularly preferably 0.1 to 5% of a mineral powder as defined above.

[0036] The dye is selected from oxidation dyes, cationic dyes, and vegetable dyes. More preferably, the dye is selected from cationic dyes and vegetable dyes. Particularly preferably, the dye is selected as a cationic dye.

[0037] The pigment is selected as an inorganic pigment.

[0038] The composition contains from 0.1 to 10% of the dye or pigment defined above, more preferably from 0.1 to 8% of the dye or pigment defined above, and particularly preferably from 0.1 to 5% of the dye or pigment defined above.

[0039] The composition also contains a polyol.

[0040] The composition according to the invention is in a single ready-to-use form. It may be in the form of a cream, a gel, an oil-in-water or water-in-oil emulsion, a hair lotion or a shampoo. The composition according to the invention is preferably in the form of a cream.

[0041] The composition according to the invention, whether in the form of a cream, emulsion, lotion or shampoo, can be applied according to any method known to those skilled in the art. Preferably, the composition according to the invention is applied according to a method comprising the following steps: Applying a composition according to the invention directly to dry hair, Leave it on for a period of time that can vary from 5 to 30 minutes. Rinse hair with water.

[0042] The method according to the invention can also be supplemented as follows: After rinsing your hair, shampoo it. Apply a conditioning balm or leave-in treatment.

[0043] The method according to the invention is easy to carry out and allows for effective and long-lasting hair dyeing without the use of ammonia, hydrogen peroxide, bases or couplers, all in a solvent with an acidic pH of 5.5, thereby preserving the quality of the hair.

[0044] In addition, the composition according to the invention can also be used for dyeing the eyelashes or eyebrows.

[0045] The invention is illustrated in a non-limiting manner by the following examples.

[0046] Example 1 - Composition according to the invention A ready-to-use dyeing cream containing amino acids, proteins, alcohol, mineral powders and dyes was prepared, the composition of which is shown in Table 1 below.

[0047] [Table 1]

[0048] Example 2 - Dyeing test 2.1-Staining method The cream described in Example 1 above is used to sensitize anhydrous hair dyes by repeated oxidation streaking and dyeing, which is unable to retain dye due to its porosity (Figure 1).

[0049] The application of the composition according to the invention is carried out according to the following procedure.

[0050] Step 1: Apply the dye cream directly to dry hair.

[0051] The ready-to-use composition according to the invention is applied directly to dry hair as a treatment for the entire hair from root to tip. The composition is then left to act for 15 minutes.

[0052] Step 2: Rinse Rinse the hair thoroughly using a conventional shampoo that does not contain sodium lauryl ether sulfate (ie, sodium lauryl sulfate). The shampoo is then rinsed out and a traditional detangling balm is applied.

[0053] Step 3: Hair styling The hair is then styled in the conventional manner.

[0054] 2.2- Results obtained The hair is dyed in deep, very lustrous shades. During hair styling, it is noted that the hair remains very soft and silky, without any traces of sensitization. The dyed hair is thus easily obtained without having to resort to any oxidation (Figure 2).

[0055] Microscopic analysis of the hair after treatment reveals that there is no trace of decay in the cortical fat cells and the cuticle is intact. The fibers are completely healthy and strongly stained (Figure 3).

[0056] Moreover, the observed effects are long-lasting, lasting approximately two months, a period comparable to that of oxidative dyes.

[0057] Example 3 – Instant dye transfer test 3.1-Instant dye transfer method The cream described in Example 1 above is used to facilitate the immediate transfer of dye to the hair and the wicking process. A photo taken before treatment shows the hair in its natural state (Figure 4).

[0058] The application of the composition according to the invention is carried out according to the following procedure.

[0059] Step 1: Apply the dye cream directly to dry hair. The ready-to-use composition according to the invention is applied directly to selected dry hair strands. A low temperature iron at 55° C. is then run over the hair tresses soaked in the dye cream (FIG. 5). The locks are dyed instantly.

[0060] Step 2: Rinse The hair is rinsed thoroughly and a conventional shampoo that does not contain sodium lauryl ether sulfate (i.e., sodium lauryl sulfate) is applied. The shampoo is then rinsed off and a conventional detangling balm is applied.

[0061] Step 3: Hair styling The hair is then styled in a conventional manner.

[0062] 3.2 - Results obtained The hair is highlighted. During hair styling, it is also noted that the hair is very soft and silky, since it does not exhibit any trace of sensitization. It highlights the hair in record time, without relying on any oxidation, and without dwell time (Figure 6).

[0063] Moreover, the observed effects are long-lasting, lasting approximately two months, a period comparable to that of oxidative dyeing.

[0064] Example 4 - Comparison Test 4.1- Test dye cream The dyeing power of a dyeing cream similar to that described in Example 1 above, but without amino acids, the composition of which is reported in Table 2 below (hereinafter "Reference cream"), was compared with the dyeing power of the cream described in Example 1.

[0065] [Table 2]

[0066] 4.2-Staining method The cream and the reference cream described in Example 1 above are used to dye hair that has been dried and sensitized by repeated oxidative dyeing, but the hair tress is unable to retain the dye due to its porosity.

[0067] Application of the composition is carried out according to the procedure described in Example 2 above (see 2.1).

[0068] 4.3 Results obtained The hair treated with the cream described in Example 1 above is dyed to a deep and extremely lustrous dye color. During hair styling, it is noted that the hair is very soft and silky, showing no signs of sensitization. Dyed hair is thus easily obtained without having to resort to any oxidation (Figure 7).

[0069] Moreover, the observed effects are long-lasting, lasting for a period comparable to oxidative dyeing, approximately 2 months.

[0070] In contrast, hair treated with the reference cream without amino acids shows a very faint dyeing without any shine. The dye does not remain on the skin surface and disappears very quickly after the first shampoo. It is also noted that the hair structure is more difficult to handle (Figure 8).

Claims

1. A hair dye composition comprising: 0.1% by weight to 20% by weight of a protein-constituting amino acid selected from aspartic acid, glutamic acid, asparagine, carnitine, cysteine, glutamine, histidine, leucine, isoleucine, methionine, L-phenylalanine, proline, hydroxyproline, threonine, tryptophan, tyrosine, valine, glycine, alanine, serine, beta-alanine, taurine, lysine, and arginine, or a salt thereof, an acid or base, an organic substance, or an inorganic substance; 0.1% to 20% by weight of protein; Formula C ｎ H ２ｎ＋１ 0.5% to 20% by weight of an alcohol represented by the formula: OH, where n is 1 to 10; 0.1% to 20% by weight of mineral powder; 1% to 15% by weight of vegetable oil; 0.1% to 10% by weight of dye or pigment.

2. 2. The hair dye composition according to claim 1, wherein the proteinogenic amino acids are selected from aspartic acid, glutamic acid, asparagine, carnitine, cysteine, glutamine, histidine, methionine, proline, hydroxyproline, tyrosine, glycine, alanine, serine, beta-alanine, taurine and arginine.

3. 3. A hair dye composition according to claim 2, wherein said proteinogenic amino acids are selected from aspartic acid, glutamic acid, cysteine ​​and arginine.

4. 4. A hair dyeing composition according to any one of claims 1 to 3, wherein said proteins are selected from optionally hydrolysed creatine, optionally hydrolysed keratin, optionally hydrolysed wheat protein, optionally hydrolysed silk protein, optionally hydrolysed vegetable keratin, optionally hydrolysed soy protein, optionally hydrolysed collagen, optionally hydrolysed elastin, optionally hydrolysed pea protein, optionally hydrolysed rice protein, optionally hydrolysed conchiolin protein and optionally hydrolysed whey protein.

5. 5. A hair dyeing composition according to claim 4, wherein said proteins are selected from optionally hydrolysed creatine, optionally hydrolysed keratin, optionally hydrolysed silk protein, optionally hydrolysed vegetable keratin, optionally hydrolysed soy protein, optionally hydrolysed collagen, optionally hydrolysed elastin, optionally hydrolysed pea protein, optionally hydrolysed rice protein, optionally hydrolysed conchiolin protein and optionally hydrolysed whey protein.

6. 6. A hair dyeing composition according to claim 5, wherein said protein is selected from creatine, keratin, optionally hydrolyzed wheat protein, optionally hydrolyzed silk protein and optionally hydrolyzed soy protein.

7. A hair dyeing composition according to any one of the preceding claims, wherein said alcohol is chosen from butanol, isopropanol, ethanol and benzyl alcohol.

8. 8. A hair dyeing composition according to any one of claims 1 to 7, wherein said vegetable oil is selected from sweet almond oil, olive oil, argan oil, chamomile oil, Roman chamomile oil, harem oil, babassu oil, broccoli oil, avocado oil, linseed oil, apricot oil, cucumber oil, black seed oil, Brazil nut oil, grape seed oil, shea olein, sesame oil and tomato oil.

9. 9. A hair dyeing composition according to claim 8, wherein said vegetable oil is chamomile oil or Roman chamomile oil.

10. A hair dyeing composition according to any one of claims 1 to 9, wherein said mineral powder is selected from kaolin powder, alum powder, calcium carbonate powder, potassium carbonate powder, titanium oxalate and magnesium powder.

11. A hair dyeing composition according to claim 10, wherein said mineral powder is alum powder.

12. 1. A method for dyeing hair, comprising the steps of: Applying a hair dye composition according to any one of claims 1 to 11, leaving it to act for a period of time which may vary from 5 minutes to 30 minutes; The process of rinsing the hair with water.

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