Composition for hair dyeing

Abstract

The present invention relates to a hair cosmetic composition useful for coloring hair or maintaining the hue of dyed hair. The hair cosmetic composition according to the present invention uses a cationic polymer compound having a specific structure, an amphoteric surfactant or a cationic surfactant, and a hair penetration solvent to improve the coloring power and hue retention power of dyes as compared with conventional hair cosmetic compositions. In addition, the hair coloring power can be increased through the synergistic effect of the combination of myrobalan fruit extract and basic amino acids, and the tensile strength, gloss and coefficient of friction value of the hair can also be significantly improved.

Description

Technical Field

[0001] The present invention relates to a hair cosmetic composition that helps improve hair dyeing power and maintain hair color.

Background Art

[0002] Generally, compositions for changing the hair color can be classified into permanent hair dyes (oxidative hair dyes), semi-permanent hair dyes (non-oxidative hair dyes), and temporary hair dyes (powder compositions).

[0003] In the case of permanent hair dyes, they have strong coloring power, but there are problems such as hair and scalp damage caused by oxidation and allergy induction. In the case of temporary hair dyes, there is a problem that the coloring power and retention power are not sufficient due to the property of using powder. In comparison, semi-permanent hair dyes use dyes to develop color and have the advantage of not causing damage or allergy induction, unlike oxidative hair dyes. Such semi-permanent hair dyes mainly use acid dyes or basic dyes to develop color. However, in the case of semi-permanent hair dyes using dyes, there is a problem that the coloring power is inferior compared to conventional oxidative hair dyes, and thus efforts have been made to solve this problem.

[0004] However, when using metal salts (U.S. Patent No. 10398635), the coloring power is improved, but there is a problem that it has an adverse effect on the touch when used in the composition because metal is used. When using a polymer to enhance the coloring power (Korean Patent Publication No. 10-2016-0179033), there is a disadvantage that it does not have a sufficient improvement effect with basic dyes.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] An object of the present invention is to provide a hair cosmetic composition that enhances hair dyeing power or helps maintain the hue of dyed hair.

[0007] Another object of the present invention is to provide a composition for hair dyeing with improved tensile strength, gloss or coefficient of friction value of hair.

Means for Solving the Problems

[0008] The present invention provides (a) a basic dye; (b) one or more cationic polymer compounds selected from the group consisting of polyquaternium-6, polyquaternium-7, polyethyleneimine or its derivatives, and polylysine or its derivatives; (c) an amphoteric surfactant or a cationic surfactant; and (d) containing a hair penetration solvent, or (a) a basic dye; (e) myrobalan fruit extract; and (f) a hair cosmetic composition containing a basic amino acid.

Effects of the Invention

[0009] The hair cosmetic composition according to the present invention further contains a cationic polymer compound; an amphoteric surfactant or a cationic surfactant; and a hair penetration solvent in a hair cosmetic composition containing a basic dye, or further contains myrobalan fruit extract; and a basic amino acid. Through this, compared with the conventional hair cosmetic composition containing a basic dye, the coloring power (dyeing power) and hue maintaining power of the dye can be improved.

[0010] In addition, the hair cosmetic composition according to the present invention can improve the tensile strength, gloss and coefficient of friction value of hair.

[0011] In addition, the hair cosmetic composition according to the present invention can impart the above-described effects without affecting the feeling of use and other elements.

Embodiments for Carrying Out the Invention

[0012] The present invention relates to a hair cosmetic composition comprising (a) a basic dye; (b) one or more cationic polymer compounds selected from the group consisting of polyquaternium-6, polyquaternium-7, polyethyleneimine or its derivatives, and polylysine or its derivatives; (c) an amphoteric surfactant or a cationic surfactant; and (d) containing a hair penetration solvent, or (a) a basic dye; (e) myrobalan fruit extract; and (f) a basic amino acid.

[0013] Hereinafter, the configuration of the present invention will be specifically described.

[0014] When a part includes a certain component, this means that, unless otherwise stated to the contrary, it does not exclude other components and can further include other components.

[0015] In the present invention, "dyeing" means using a dye or the like on the hair to change the inherent color of the surface to have the intended color and maintaining it.

[0016] In the present invention, the hair cosmetic composition may contain (a) a basic dye; (b) a cationic polymer compound; (c) an amphoteric surfactant or a cationic surfactant; and (d) a hair penetration solvent.

[0017] In the present invention, (a) the basic dye is a non-oxidative dye used in semi-permanent or temporary hair dyes. Non-oxidative dyes have various functional groups present inside and outside the hair (for example, -NH 2, -COOH, -SH, -OH, etc.) can bind to hair and develop color through interaction.

[0018] Among these, basic dyes are cationized in an aqueous solution by having an amine group in the molecule. The cationized amine group can be adsorbed (dyed) via an ionic bond with the negative part of the keratin protein on the negatively charged hair surface, or can be fixed to the hair by partially penetrating into the interior of the hair. That is, basic dyes can enhance the hair surface adsorption and internal penetration mechanisms of the dye to enhance the coloring power.

[0019] In one specific example, as the basic dye, compounds used as basic dyes in the art can be used without limitation. For example, one or more selected from the group consisting of Basic Blue 7 (C.I. 42595), Basic Blue 16 (C.I. 12210), Basic Blue 22 (C.I. 61512), Basic Blue 26 (C.I. 44045), Basic Blue 99 (C.I. 56059), Basic Blue 117, Basic Violet 10 (C.I. 45170), Basic Violet 14 (C.I. 42515), Basic Brown 16 (C.I. 12250), Basic Brown 17 (C.I. 12251), Basic Red 2 (C.I. 50240), Basic Red 12 (C.I. 48070), Basic Red 22 (C.I. 11055), Basic Red 51, Basic Red 76 (C.I. 12245), Basic Red 118 (C.I. 12251:1), Basic Orange 31, Basic Yellow 28 (C.I. 48054), Basic Yellow 57 (C.I. 12719), Basic Yellow 87, and Basic Black 2 (C.I. 11825), etc. can be used. Or, one or more selected from the group consisting of Basic Blue 3, Basic Blue 6, Basic Blue 7, Basic Blue 9, Basic Blue 26, Basic Blue 41, Basic Blue 47, Basic Blue 99, Basic Brown 4, Basic Brown 16, Basic Brown 17, Basic Green 1, Basic Green 4, Basic Orange 1, Basic Orange 2, Basic Orange 31, Basic Red 1, Basic Red 1:1, Basic Red 2, Basic Red 22, Basic Red 46, Basic Red 51, Basic Red 76, Basic Red 118, Basic Violet 1, Basic Violet 2, Basic Violet 3, Basic Violet 4, Basic Violet 10, Basic Violet 11:1, Basic Violet 14, Basic Violet 16, Basic Yellow 11, Basic Yellow 28, Basic Yellow 40, Basic Yellow 57, and Basic Yellow 87, etc. can be used. Preferably, Basic Blue 99 and / or Basic Brown 16 can be used as the basic dye.

[0020] In one specific example, (a) the content of the basic dye is not particularly limited and may be contained in an amount of 0.0001 to 5% by weight, preferably 0.01 to 3% by weight, or 0.1 to 1% by weight, based on the total weight of the composition. When the content is low, there may be a limit to the exhibition of effective performance, and when the content is high, problems may occur in formulation and formulation stabilization.

[0021] In the present invention, (b) the cationic polymer compound can act as a hair surface coating agent to enhance the dye fixing power when treated on dyed hair. Specifically, the cationic polymer compound can change the state of the functional groups present in the hair and more actively induce the interaction between the dye and the hair. Through this, the color fading phenomenon due to washing of the dyed hair can be alleviated.

[0022] The cationic polymer compound can be one or more selected from the group consisting of polyquaternium-6, polyquaternium-7, polyethyleneimine or its derivatives, and polylysine or its derivatives. Preferably, the cationic polymer compound can be polyquaternium-6.

[0023] Generally, when a basic dye and a cationic polymer having the same ionic property are treated simultaneously, the two components will have a competitive effect and interfere with the adsorption of the dye to the hair. Therefore, it can act as a cause for reducing the color development of the basic dye. However, the cationic polymer compound according to the present invention does not act as a competitor for the basic dye even in the simultaneous treatment method due to its structural characteristics. Instead, the cationic polymer compound serves as a coating agent that enhances the fixing power of the basic dye and can assist in the color development of the dye.

[0024] The polyquaternium-6, polyquaternium-7, polyethyleneimine or its derivatives, and polylysine or its derivatives according to the present invention have a high repetition of positive charges and a high degree of cationization. Since the positive charges are fixed in or near the main chain molecules, the charge has relatively high rigidity. As a result, the cationic polymer compound can serve as an excellent film-forming agent. In addition, it can have a high coating power for the surface of negatively charged hair and can enhance the fixing power of dyes.

[0025] In one specific example, the content of the (b) cationic polymer compound is not particularly limited and may be contained in an amount of 0.0001 to 5% by weight based on the total weight of the composition. Preferably, it may be contained in an amount of 0.001 to 3% by weight, or 0.01 to 2% by weight. When the content of the cationic polymer compound is too high, the polymer may be coated on the hair first, which may interfere with the adsorption or penetration of the basic dye. On the other hand, when the content is too low to reach the effective concentration, the fixing effect of the basic dye cannot be obtained. That is, the interaction between the functional groups of the hair and the dye can be activated within the above-described content range.

[0026] In the present invention, the (c) amphoteric surfactant or cationic surfactant is applied together with the basic dye and the cationic polymer compound, and can further enhance the hair adsorption and penetration of the basic dye in the detergent form.

[0027] In one specific example, the amphoteric surfactant may include one or more selected from the group consisting of coco betaine, cocoamidopropyl betaine, lauramidopropyl betaine, coco amphocarboxyglycinate, coco amphodipropionate, coco amphodiacetate, lauryl hydroxysultaine, and salts thereof.

[0028] In one specific example, the cationic surfactant can be quaternary ammonium compounds and / or tertiary amidoamines. The quaternary ammonium compounds may include one or more selected from the group consisting of behentrimonium chloride, cetrimonium chloride, stearotrimonium chloride, dicetyldimonium chloride, and distearyldimonium chloride, and the tertiary amidoamines may include one or more selected from the group consisting of cocoamidopropyldimethylamine, stearamidopropyldimethylamine, and behenamidopropyldimethylamine.

[0029] In one specific example, the content of (c) the amphoteric surfactant or the cationic surfactant is not particularly limited and may be included in an amount of 0.01 to 30% by weight, preferably 0.1 to 20% by weight, or 1 to 15% by weight, based on the total weight of the composition. If the content is excessive, it may inhibit the hair transfer ability of the basic dye, and if the content is low, it may not have sufficient detergency and may not function as a hair cleaning agent.

[0030] In the present invention, (d) the hair penetration solvent can assist the basic dye to more easily penetrate into the hair and further facilitate the binding between the hair and the basic dye.

[0031] In one specific example, the hair penetration solvent can be alcohols. The alcohols may include, for example, one or more selected from the group consisting of ethanol, propyl alcohol, isopropyl alcohol, propylene glycol, butylene glycol, methylpropanediol, hexylene glycol, diethylene glycol, dipropylene glycol, benzyl alcohol, and glycerin. Preferably, the hair penetration solvent may include benzyl alcohol.

[0032] In one specific example, the content of the (d) hair penetration solvent is not particularly limited and may be contained in an amount of 0.0001 to 15% by weight based on the total weight of the composition. Preferably, it may be contained in an amount of 0.01 to 15% by weight, or 0.1 to 10% by weight. If the content is excessive, the usability may be inferior due to severe damage to the hair, scalp irritation, or a strong odor. If the content is low, there is a risk of not providing a dye penetration effect. When the hair penetration solvent having the above-described content is applied, it can improve the solubility of the basic dye and help the dye penetrate more easily into the hair.

[0033] In the present invention, the hair cosmetic composition may contain (a) a basic dye, (b) a cationic polymer compound, (c-1) an amphoteric surfactant, and (d) a hair penetration solvent, and the weight ratio of (a):(b):(c-1):(d) may be 0.01 to 1:0.001 to 1:1 to 25:0.01 to 15.

[0034] Further, in the present invention, the hair cosmetic composition may contain (a) a basic dye, (b) a cationic polymer compound, (c-2) a cationic surfactant, and (d) a hair penetration solvent, and the weight ratio of (a):(b):(c-2):(d) may be 0.01 to 1:0.001 to 1:0.01 to 10:0.01 to 15.

[0035] In the present invention, the hair cosmetic composition may contain (a) a basic dye; (e) myrobalan fruit extract; and (f) a basic amino acid.

[0036] In the present invention, as the (a) basic dye, the above-described types can be used, and preferably, basic brown 16, basic blue 99, basic yellow 87, and / or basic red 51 can be used as the basic dye.

[0037] In one specific example, (a) the content of the basic dye is not particularly limited and may be contained in an amount of 0.001 to 5% by weight, preferably 0.01 to 2% by weight, or 0.05 to 1% by weight, based on the total weight of the composition. If the content is too high, the skin may be easily colored during use, or there may be problems with the dosage form stability. If the content is low, the effect of improving the coloring power may not appear.

[0038] In the present invention, (e) Terminalia Chebula Fruit Extract is an extract obtained by subjecting Terminalia Chebula fruits, which are natural materials, to hot water extraction or alcohol extraction.

[0039] The Terminalia Chebula Fruit Extract can strongly fix the basic dye to the hair to improve the coloring effect. In addition, since the Terminalia Chebula Fruit Extract contains a large amount of anionic polyphenols composed of chebulic acid and the like, when applied to the hair together with a cationic basic dye, two groups of substances having counterions can mutually act as a crosslinking agent for the hair, and the basic dye can be more strongly fixed to the surface of the hair. Further, the polyphenols can exhibit a coloring synergy due to the effect of being mordanted on the surface of the hair without using a separate metal salt.

[0040] In one specific example, the Terminalia Chebula Fruit Extract can be a hot water extract of Terminalia Chebula fruits. The Terminalia Chebula Fruit Extract extracted through hot water extraction can provide a more excellent dyeing effect than an alcohol extract.

[0041] In one specific example, (e) the content of the Terminalia Chebula Fruit Extract is not particularly limited and may be contained in an amount of 0.0001 to 5% by weight, preferably 0.0001 to 5% by weight, or 0.0001 to 1% by weight, based on the total weight of the composition. If the content is low, it may not interact sufficiently with the basic dye, and the adhesion of the basic dye may decrease. If the content is high, the stability of the dosage form may be inhibited.

[0042] In the present invention, (f) basic amino acids can carry a positive charge at neutral pH. The basic amino acids can impart an additional mordant coloring effect to the hair cosmetic composition, and at the same time, can increase the tensile strength and gloss of the hair. Generally, metal salts have been used for the mordant coloring of polyphenols. However, in such cases, there is a problem that the surface of the hair becomes very rough due to the metal salts, resulting in poor usability. In the present invention, by excluding the use of metal salts generally used for dyeing with natural dyes and using basic amino acids, not only can the hair coloring be improved, but also the tensile strength, gloss and coefficient of friction value of the hair can be improved.

[0043] In one specific example, the basic amino acid may include one or more selected from the group consisting of arginine, lysine, histidine and salts thereof.

[0044] In one specific example, the basic amino acid may be a peptide or polypeptide containing the basic amino acid as a constituent element, for example, it may contain an arginine / lysine polypeptide.

[0045] In one specific example, the content of (f) basic amino acid is not particularly limited and may be contained in an amount of 0.0001% by weight or more based on the total weight of the composition. Preferably, it may be contained in an amount of 0.0001 to 1% by weight, or 0.0001 to 0.5% by weight. When the content is low, the hair coloring power, tensile strength, gloss, and coefficient of friction improvement effects are very weak. When the content is high, amino acid precipitation may occur, which may inhibit the dosage form stability.

[0046] In the present invention, the hair cosmetic composition contains (a) a basic dye, (e) myrobalan fruit extract, and (f) a basic amino acid, and the weight ratio of (e):(a):(f) can be 1:0.001 to 1:0.001 to 1. Preferably, it can be 1:0.005 to 0.5:0.005 to 0.5, and more preferably 1:0.01 to 0.1:0.01 to 0.1 (myrobalan fruit extract:basic dye:basic amino acid). Within the range of the weight ratio of the three components, the hair coloring power, tensile strength, gloss, and friction coefficient improvement effect can be significantly increased.

[0047] In one specific example, the pH of the hair cosmetic composition containing (a) a basic dye, (e) myrobalan fruit extract, and (f) a basic amino acid may be 3 to 11, and preferably may be 3.5 to 10.5.

[0048] In one specific example, the hair cosmetic composition containing (a) a basic dye, (e) myrobalan fruit extract, and (f) a basic amino acid may not substantially contain a metal salt. Preferably, it may contain less than 1% by weight, less than 0.1% by weight, or less than 0.01% by weight of the metal salt based on the total weight of the composition, or may not contain it at all. By substantially not containing a metal salt, the hair cosmetic composition of the present invention can reduce the friction coefficient of the hair and smooth the hair surface.

[0049] In one specific example, the hair cosmetic composition containing (a) a basic dye, (e) myrobalan fruit extract, and (f) a basic amino acid may not substantially contain an amphoteric amino acid. Preferably, it may contain less than 1% by weight, less than 0.1% by weight, or less than 0.01% by weight of the amphoteric amino acid based on the total weight of the composition, or may not contain it at all. The amphoteric amino acid can interfere with the interaction between the basic dye and the myrobalan fruit extract and reduce the hair binding force of the basic dye. Therefore, the hair cosmetic composition of the present invention can prevent the above problems by substantially not containing an amphoteric amino acid.

[0050] The hair cosmetic composition of the present invention can usually be further formulated with substances that can be used in hair cosmetics. Specifically, the hair cosmetic composition may further contain components commonly used in hair dyes within the range that does not inhibit the effects of the present disclosure. The hair cosmetic composition may appropriately select and contain components such as dyes, solvents, water-soluble humectants, alkaline agents, antioxidants, sequestering agents, pH adjusters, thickeners, or fragrances.

[0051] The hair cosmetic composition of the present invention can be applied to hair products. Such hair products may include, for example, pre-shampoo compositions, shampoos, colored shampoos, rinses, treatments, waxes, gels, sprays, mousses, hair lotions, hair packs, hair essences, hair creams, permanent hair dyes, temporary hair dyes, perm agents, non-woven fabrics, sheets, and the like.

[0052] In one specific example, the hair cosmetic composition can be a non-oxidative hair dye and can be a semi-permanent hair dye.

[0053] In one specific example, the hair cosmetic composition may be a composition for hair washing or hair care, and preferably may be a composition for hair washing. The composition for hair washing or hair care may be an expression excluding hair dyes that use oxidizing agents.

[0054] In one specific example, the hair cosmetic composition can be applied to a wash-off form of hair cosmetic composition. Even when the hair cosmetic composition is applied to a wash-off form of hair composition, the improvement of the dyeing power and the effect of maintaining the dyeing power can be maintained or improved.

[0055] All components described in the present invention preferably do not exceed the maximum usage amounts specified by relevant laws and regulations in countries such as South Korea, China, the United States, Europe, and Japan (for example, regulations regarding cosmetic safety standards (South Korea), cosmetic safety technical specifications (China), etc.). That is, preferably, the hair dyeing composition according to the present disclosure contains the components according to the present disclosure within the limits of the contents allowed by the relevant laws and regulations of each country.

[0056] In addition, the present invention provides a hair treatment method including the step of applying the hair cosmetic composition according to the present invention to hair.

[0057] In the present invention, after dyeing hair using the hair cosmetic composition, the color difference value (ΔE) of the hair before and after dyeing, measured using a color difference meter for hue measurement, can be 20 or more. The color difference value (ΔE) of the hair can be measured by the method of Experimental Example 1. Preferably, ΔE may be 30 to 80, more preferably 50 to 80, or 55 to 80.

[0058] The color difference value can be calculated by the following Formula 1 using a HunterLab's Agera Spectrophotometer.

[0059] <Formula 1> △E = [(L 0 * - L 1 * ) 2 + (a 0 * - a 1 * ) 2 + (b 0 * - b 1 * ) 2 ) 1 / 2 In Formula 1, L * indicates light and dark, and the larger the value, the brighter it is. a * is Green to red, and the larger the value, the stronger the red color. b * is Blue to yellow, and the larger the value, the stronger the yellow color. And L 0 * , a 0 * , b 0 * are the hue values before dyeing, and L 1 * , a 1 * , b 1* is the hue value after dyeing.

[0060] Hereinafter, the present invention will be described in detail based on examples. The following examples illustrate the present invention, and the scope of the present invention is not limited to the following examples. These examples are provided to complete the disclosure of the present invention and to fully inform those with ordinary knowledge in the technical field to which the present invention pertains of the scope of the invention. The present invention is only defined by the scope of the claims. Also, the components used in the present invention were purchased as commercially available raw materials.

Example

[0061] <Examples 1-1 to 1-8 and Comparative Examples 1-1 to 1-2> As basic dyes, Basic Brown 16 (CI 12250) and Basic Blue 99 (CI 56059), which are frequently formulated during the dyeing of gray hair, were used. Two basic dyes were dissolved in purified water at a concentration of 0.4% (w / w) in a ratio of 1:1 to produce a dye solution. A cationic polymer compound, four types (Polyquaternium-6, Polyquaternium-7, Polyethyleneimine, Polylysine), a surfactant, and a hair penetration solvent were dissolved in the dye solution according to the content ratios shown in Tables 1 and 2 below.

[0062]

Table 1

[0063]

Table 2

[0064] <Experimental Example 1. Comparison of Color Development Enhancement Effects> The degree of color development enhancement through the addition of a cationic polymer compound, a surfactant, and a hair penetration solvent to the basic dye was compared.

[0065] The yak hair for experiment (Phoenix) was prepared by washing it with a 15% sodium lauryl sulfate (SLES) solution corresponding to 10% of the tare weight and then drying the moisture with a dryer. The initial hue values (L 0 * , a 0 * , b 0 * ) of the yak hair before dyeing were measured with a color difference meter (Agera Spectrophotometer, HunterLab, light source D65 / 10).

[0066] The yak hair was supported in 20 mL of the compositions of the comparative examples and the examples for 5 minutes. After the passage of time, the dyed yak hair was washed with flowing lukewarm water (20 - 30 °C) for 1 minute. After wiping off the moisture, it was dried with a dryer, and the hue values (L 1 * , a 1 * , b 1 * ) of the dyed yak hair were measured. The hue values before and after dyeing were calculated, and the color change (ΔE) value was calculated according to the following formula 1.

[0067] <Formula 1> △E = [(L 0 * - L 1 * ) 2 + (a 0 * - a 1 * ) 2 + (b 0 * - b 1 * ) 2 1 / 2 The measured color change (ΔE) values are shown in Table 3 below.

[0068]

Table 3

[0069] ​In the case of Comparative Examples 1-2 to which an anionic surfactant most commonly used in the form of a hair cleaning agent was applied, the coloring power of the dye was significantly inferior. This is because the adsorption of the dye to the hair and the penetration into the hair are inhibited through ionic interactions.

[0070] However, as in Example 1-1 or 1-5, when an amphoteric surfactant or a cationic surfactant was applied and the content of the hair penetration solvent was appropriately adjusted, it was confirmed that the coloring power was further improved. Such a tendency can be confirmed not only in Example 1-1 or 1-5 using Polyquaternium-6, but also in Examples 1-2 to 1-4 or Examples 1-6 to 1-8 using Polyquaternium-7, polyethyleneimine, and polylysine.

[0071] Through the above experimental examples, when a cationic polymer compound, an amphoteric surfactant or a cationic surfactant, and a hair penetration solvent are applied simultaneously and their contents are optimized, while imparting a hair cleaning effect, along with enhancing the strong internal penetration power of the basic dye, it can be confirmed that the mechanism of preventing dye elution through the formation of a polymer coating film on the hair surface acts simultaneously, having a strong dye locking effect.

[0072] <Example 2-1 and Comparative Examples 2-1 to 2-6> Example 2-1 and Comparative Examples 2-1 to 2-6 were produced so as to contain a basic dye, myrobalan fruit extract, and a basic amino acid (arginine / lysine polypeptide; Peptiskin (registered trademark)) in the contents (wt%) shown in Table 4 below.

[0073]

Table 4

[0074] <Experimental Example 2. Comparison of Color Enhancement Effects> The color enhancement effects of the compositions of the examples and comparative examples were measured by the method of Experimental Example 1. At this time, for dyeing, the composition was repeatedly washed and dyed on yak hair once and three times. For washing, after wetting the yak hair with water, the prepared composition was applied in an amount corresponding to 10% of the tare weight of the yak hair, bubble-washed for 1 minute, left for 3 minutes, and then washed with running water for 1 minute. The ΔE measurement method was the same as in Experimental Example 1. The measured color change (ΔE) values are shown in Table 5 below.

[0075]

Table 5

[0076] When comparing Comparative Example 2-1 and Comparative Example 2-4, it can be confirmed that when applying myrobalan fruit extract to the basic dye, the fixing power of the basic dye is enhanced by the mutual ion cross-linking between the two substances, and the ΔE value slightly increases due to the mordant effect of polyphenols.

[0077] As in Example 2-1, when further applying basic amino acids to Comparative Example 2-4, it can be confirmed that the coloring power is further significantly improved. This is because the cationic basic amino acids enhance the mordant coloring of the polyphenols in the myrobalan fruit extract, and the high hair penetration power of the basic amino acids increases the amount of basic dye that penetrates into the interior of the hair cortex.

[0078] By repeating the treatment process of the hair composition (1 time → 3 times), the difference in the ΔE value becomes larger, and through this, it can be confirmed that natural dyeing can be gradually achieved when the hair composition is used repeatedly every day.

[0079] <Experimental Example 3. Evaluation of Hair Tensile Strength and Gloss> (1) Preparation of Samples The depilatory agent was applied to the experimental view racks of normal hair (prepared in bundles of 4 g each) at twice the tare weight, sealed, left at room temperature for 20 minutes, then washed with a 15% SLES solution for 1 minute, and dried for preparation. The depilated hair prepared by the above method was washed with a general shampoo (using the Dobon Charming Shampoo product) to serve as the control group. The tensile strength and gloss change rate of Comparative Examples 2-1 to 2-3 and Example 2-1 were measured compared to the control group.

[0080] (2) Measurement of Tensile Strength Clamps (crimps) were clamped at intervals of 30 mm at both ends of a single strand of tres hair in the control group, Comparative Examples 2-1 to 2-3, and Example 2-1, and pressed with a press to prepare hair samples. The cross-sectional area of the hair was measured using a laser scan micrometer, and the tensile strength of each hair strand with the measured cross-sectional area was measured using a tensile testing machine (MTT175, Dia-stron, UK). When the hair sample was placed on the holder and pulled at a tensile speed of 20 mm / min, the strength of the force (break load, gmf) when the hair broke was calculated as the breaking load per hair area and evaluated as the hair tensile strength (break stress). The increase rate relative to the measured value of the control group was shown as a percentage (%).

[0081] (3) Measurement of Gloss The tres in Comparative Examples 2-1 to 2-3 and Example 2-1 were aligned and prepared on a gloss meter (SAMBA HAIR, BOSSA NOVA VISION). The numerical value (BNT) obtained by comprehensively calculating the reflection and scattering degrees that appear when polarized light is irradiated on the surface of the aligned hair and the width of the reflection band captured in the image was confirmed. The larger the value, the better the gloss. The increase rate relative to the measured value of the control group was shown as a percentage (%).

[0082]

Table 6

[0083] In Comparative Examples 2-1, 2-2, or 2-3 containing a dye, myrobalan fruit extract, or basic amino acid, respectively, an increase in tensile strength and gloss value was confirmed compared to the control group treated with a general shampoo. This is because the strength on the hair surface and inside was reinforced by the coating of the hair surface with the dye and polyphenols or the internal penetration of the basic amino acid. Also, the decrease in lightness value due to the dyeing of tres or the increase in nutritional feeling due to the treatment with the extract was shown as an increase in gloss value.

[0084] As a result, the tensile strength and gloss value were the highest in Example 2-1 containing a dye, myrobalan fruit extract, and basic amino acid simultaneously. The penetration of the basic dye and polyphenols is promoted by the basic amino acid with good internal penetration power into the hair, increasing the density of the hair cortex and strengthening the tensile strength. Also, the color development becomes vivid due to the reduction in the dropout of the deeply penetrated dye and the increase in the mordanting of the polyphenol, and the gloss measurement value increases as the hair alignment degree increases due to the original conditioning effect of the cationic amino acid.

[0085] <Experimental Example 4. Evaluation of Hair Friction Coefficient> Phoenix decolorized hair for experiments (4 g) was prepared, and a sample without any treatment was used as the control group. The decolorized hair was carried and dyed in the solutions prepared according to Comparative Examples 2-7 to 2-9 and Example 2-2 in Table 7 below for 20 minutes each. Then, a LES 15% solution was applied in an amount corresponding to 10% of the tres weight, bubble-washed for 1 minute, washed with flowing water for 1 minute, towel-dried, and dried with a dryer to complete the measurement preparation.

[0086]

Table 7

[0087] The hair root sides of the tres of Comparative Examples 2-7 to 2-9 and Example 2-2 were fixed to an acrylic plate by bonding, and the coefficient of friction was measured using a friction tester (MTT 175, Dia-stron, UK). The change in force generated by moving the fiber holder attached to the tester at a constant speed on the hair surface under a constant vertical resistance was measured to calculate the coefficient of friction. Since a lower coefficient of friction means a smoother hair surface, a larger increase rate (%) of the coefficient of friction means a rougher hair surface.

[0088] [Table 8]

[0089] In the case of Comparative Examples 2-8 and 2-9 containing metal salts, the coefficient of friction of the hair increased significantly even with only one treatment. From this, it can be confirmed that when a hair care composition containing a metal salt is repeatedly used daily like shampoo, the hair becomes very rough due to repeated use.

[0090] On the other hand, in the case of Example 2-2 containing basic amino acids instead of metal salts, the coefficient of friction value did not increase significantly compared to the control group. Also, when comparing Example 2 with Comparative Example 2-7 which does not contain basic amino acids and contains only a dye and myrobalan fruit extract, due to the characteristics of cationic amino acids, the coefficient of friction value decreases by further imparting a conditioning feeling. [Industrial Applicability]

[0091] The cosmetic composition according to the present invention can improve the coloring power (dyeing power) and the hue maintaining power of the dye compared to conventional hair cosmetic compositions containing basic dyes.

[0092] Also, the hair cosmetic composition according to the present invention can improve the tensile strength, gloss, and coefficient of friction value of the hair.

Claims

1. (a) A basic dye; (b) One or more cationic polymer compounds selected from the group consisting of polyquaternium-6, polyquaternium-7, polyethyleneimine or its derivatives, and polylysine or its derivatives; (c) An amphoteric surfactant or a cationic surfactant; and (d) Containing a hair penetration solvent, or (a) A basic dye; (e) Myrobalan fruit extract; and (f) A hair cosmetic composition containing a basic amino acid.

2. The hair cosmetic composition according to claim 1, wherein the content of the basic dye is 0.0001 to 5% by weight based on the total weight of the composition.

3. The hair cosmetic composition according to claim 1, wherein the content of the cationic polymer compound is 0.0001 to 5% by weight based on the total weight of the composition.

4. The amphoteric surfactant is one or more selected from the group consisting of coco betaine, cocamidopropyl betaine, lauramidopropyl betaine, coco amphocarboxyglycinate, coco amphodipropionate, coco amphodiacetate, lauryl hydroxysultaine and salts thereof. The hair cosmetic composition according to claim 1.

5. The cationic surfactant is one or more selected from the group consisting of behentrimonium chloride, cetrimonium chloride, steartrimonium chloride, dicetyldimonium chloride, distearyldimonium chloride, cocamidopropyldimethylamine, stearamidopropyldimethylamine, behenamidopropyldimethylamine. The hair cosmetic composition according to claim 1.

6. The hair cosmetic composition according to claim 1, wherein the content of the amphoteric surfactant or the cationic surfactant is 0.01 to 30% by weight based on the total weight of the composition.

7. The hair penetration solvent in the hair cosmetic composition according to claim 1 is one or more alcohols selected from the group consisting of ethanol, propyl alcohol, isopropyl alcohol, propylene glycol, butylene glycol, methylpropanediol, hexylene glycol, diethylene glycol, dipropylene glycol, benzyl alcohol and glycerin, contained alone or in admixture.

8. The hair cosmetic composition according to claim 1, wherein the content of the hair-permeating solvent is 0.0001 to 15% by weight based on the total weight of the composition.

9. The hair cosmetic composition according to claim 1, wherein the weight ratio of the basic dye: cationic polymer compound: amphoteric surfactant: hair-permeating solvent is 0.01 to 1: 0.001 to 1: 1 to 25: 0.01 to 15.

10. The hair cosmetic composition according to claim 1, wherein the weight ratio of the basic dye: cationic polymer compound: cationic surfactant: hair-permeating solvent is 0.01 to 1: 0.001 to 1: 0.01 to 10: 0.01 to 15.

11. The hair cosmetic composition according to claim 1, wherein (e) the mirabala fruit extract is a hot water extract of the mirabala fruit.

12. The hair cosmetic composition according to claim 1, wherein the content of (e) the mirabala fruit extract is 0.0001 to 5% by weight based on the total weight of the composition.

13. The hair cosmetic composition according to claim 1, wherein (f) the basic amino acid is one or more selected from the group consisting of arginine, lysine, histidine, and salts thereof.

14. The hair cosmetic composition according to claim 1, wherein the content of (f) the basic amino acid is 0.0001 to 1% by weight based on the total weight of the composition.

15. The hair cosmetic composition according to claim 1, wherein the weight ratio of the mirabala fruit extract: basic dye: basic amino acid is 1: 0.001 to 1: 0.001 to 1.

16. The hair cosmetic composition according to claim 1, wherein the pH of the hair cosmetic composition containing (a) the basic dye; (e) the mirabala fruit extract; and (f) the basic amino acid is 3.5 to 10.

5.

17. The hair cosmetic composition according to claim 1, wherein the hair cosmetic composition containing (a) the basic dye; (e) the mirabala fruit extract; and (f) the basic amino acid does not contain a metal salt and / or an amphoteric amino acid.

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