Hair cosmetic composition

Abstract

The present invention aims to provide a hair cosmetic composition and hair cosmetic that offer better color retention when used for hair dyeing. [Solution] The hair cosmetic composition of the present invention is characterized by comprising a surfactant, ferulic acid, and a pH adjuster. In a preferred embodiment of the hair cosmetic composition of the present invention, the surfactant is characterized by being an amphoteric surfactant and / or a nonionic surfactant. In a preferred embodiment of the hair cosmetic composition of the present invention, the amphoteric surfactant is characterized by being at least one selected from sulfobetaine type, carbobetine type, or glycine type.

Description

Technical Field

[0001] The present invention relates to a hair cosmetic composition, and particularly to a hair cosmetic composition excellent in color retention.

Background Art

[0002] As hair coloring products, there are mainly hair colors which are quasi-drugs for permanent hair dyes, and hair manicures and hair color treatments which are cosmetics for semi-permanent hair dyes. In particular, for hair colors of permanent hair dyes, those containing the substance paraphenylenediamine (oxidation dye) are the mainstream, but in the case of dark black colors, more attention is required because the blending amount of diamine compounds increases.

[0003] For example, as a hair coloring composition containing paraphenylenediamine (oxidation dye), there is known a hair coloring composition characterized by containing (a) a water-soluble oxygen bleach; (b) a bleaching aid selected from an organic peroxyacid bleach precursor and / or a pre-formed organic peroxyacid; and (c) one or more hair coloring agents (Patent Document 1).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Disclosure of the Invention

Problems to be Solved by the Invention

[0005] However, including the above Patent Document 1, in the prior art, those containing paraphenylenediamine (oxidation dye) require more attention because the blending amount of diamine compounds increases in the case of dark black colors as described above. In addition, in recent years, skin disorders have been reported due to the substance paraphenylenediamine (oxidation dye).

[0006] Furthermore, while semi-permanent hair dyes like hair manicures are characterized by their ability to penetrate the hair's interior with a single application, resulting in color retention for 2-3 weeks, the longer they remain on the scalp, the more difficult it becomes to remove the dyed pigment. Additionally, it is difficult for stylists to apply the dye right up to the hairline, and despite the stylist's skill, the coloring results are often poor compared to regular hair color, making it a hair dye that salons and beauty parlors tend to avoid.

[0007] On the other hand, while the aforementioned hair dyes can thoroughly color the cortex (the inner layer of the hair), hair color treatments only color the cuticle (the outer layer of the hair) and the cortex near the surface of the hair, and sometimes fail to achieve sufficiently long-lasting hair color.

[0008] Furthermore, while there are many shampoos that claim to prevent hair color fading, none of them focus on the specific shade of hair they are trying to prevent fading from (whether it's blue, red, or green). Moreover, even though we refer to it as "hair color," different colors have different chemical compositions, so shampoos specifically designed to prevent fading from each color are more effective in preventing that particular shade from fading.

[0009] For example, even if you get your hair dyed "ash brown" at a hair salon, the bluish tint will fade over time, and it will quickly turn back into just plain brown. This will lower customer satisfaction with using hair salons.

[0010] Furthermore, while some shampoos contain pigments that penetrate the hair during washing to prevent fading (adding color), they have the disadvantage of leaving color between the nails and fingers, or causing scalp irritation.

[0011] Therefore, the present invention aims to provide a hair cosmetic composition and a hair cosmetic that offer better color retention when used for hair dyeing. [Means for solving the problem]

[0012] In order to achieve the above objective, the inventors of this invention diligently studied pre- and post-treatment procedures for hair color treatments, and as a result, discovered the present invention.

[0013] In other words, the hair cosmetic composition of the present invention is characterized by comprising a surfactant, ferulic acid, and a pH adjuster.

[0014] Furthermore, in a preferred embodiment of the hair cosmetic composition of the present invention, the surfactant is characterized in that it is an amphoteric surfactant and / or a nonionic surfactant.

[0015] Furthermore, in a preferred embodiment of the hair cosmetic composition of the present invention, the amphoteric surfactant is characterized by being at least one selected from sulfobetaine type, carbobetine type, or glycine type.

[0016] Furthermore, in a preferred embodiment of the hair cosmetic composition of the present invention, the sulfobetaine-type amphoteric surfactant is characterized by being at least one selected from lauryl hydroxysultaine, lauramidopropyl hydroxysultaine, or lauryl betaine.

[0017] Furthermore, in a preferred embodiment of the hair cosmetic composition of the present invention, the carbobetaine-type amphoteric surfactant is characterized by being hydroxyalkyl (C12-14) hydroxyethyl sarcosine and / or lauryl hydroxysultaine.

[0018] Furthermore, in a preferred embodiment of the hair cosmetic composition of the present invention, the glycine-type amphoteric surfactant is characterized by being sodium lauraminopropionate and / or sodium lauroamphoacetate.

[0019] In a preferred embodiment of the hair cosmetic composition of the present invention, the nonionic surfactant is at least one selected from decyl glucoside, (caprylyl / capryl) glucoside, coconut oil alkyl glucoside, lauryl glucoside, and polyglyceryl-10 laurate.

[0020] In a preferred embodiment of the hair cosmetic composition of the present invention, the pH adjuster is at least one selected from arginine, lactic acid, citric acid, malic acid, phytic acid, sodium hydrogen carbonate, tetrahydroxypropyl ethylenediamine, or trisodium citrate.

[0021] In a preferred embodiment of the hair cosmetic composition of the present invention, the hair cosmetic composition is for application to hair after oxidation dye treatment.

[0022] The color treatment method of the present invention is characterized by comprising a step of applying a hair colorant containing an oxidation dye and a step of applying the hair cosmetic composition of the present invention.

Advantages of the Invention

[0023] According to the hair cosmetic composition of the present invention, it is possible to provide a hair color product that can reduce skin irritation, has good color retention, and can be applied to the new growth part without worry about adhesion to the scalp even on the side performing the treatment.

Brief Description of the Drawings

[0024] [Figure 1] Figure 1 shows the results of colorimetry using a spectrophotometer (Konica Minolta spectrophotometer CM-36dG) for Reference Examples 1 and 2. The smaller ΔE* is, the more effective in preventing color fading. [Figure 2] Figure 2 shows the results of colorimetry using a spectrophotometer (Konica Minolta spectrophotometer CM-36dG) for Reference Examples 3 to 8. [Figure 3]Figure 3 shows the results of color measurement for Examples 1 to 7 using a spectrophotometer (Konica Minolta Spectrophotometer CM-36dG). [Figure 4] Figure 4 shows the results of color measurement for Examples 8 to 14 using a spectrophotometer (Konica Minolta Spectrophotometer CM-36dG). [Figure 5] Figure 5 shows the results of color measurement for Examples 15 to 21 using a spectrophotometer (Konica Minolta Spectrophotometer CM-36dG). [Figure 6] Figure 6 shows the results of color measurement for Examples 22 to 28 using a spectrophotometer (Konica Minolta Spectrophotometer CM-36dG). [Figure 7] Figure 7 shows the results of color measurement for Examples 29 to 35 using a spectrophotometer (Konica Minolta Spectrophotometer CM-36dG). [Figure 8] Figure 8 shows the results of color measurement for Examples 36 to 38 using a spectrophotometer (Konica Minolta Spectrophotometer CM-36dG). [Figure 9] Figure 9 shows the results of color measurement for Examples 39 to 41 using a spectrophotometer (Konica Minolta Spectrophotometer CM-36dG). [Figure 10] Figure 10 shows the results of color measurement for Examples 42 to 44 using a spectrophotometer (Konica Minolta Spectrophotometer CM-36dG).

Mode for Carrying Out the Invention

[0025] The hair cosmetic composition of the present invention is characterized by having a surfactant, ferulic acid, and a pH adjuster. In the present invention, it has been found that by blending ferulic acid (a type of polyphenol) which exhibits an ultraviolet absorption action and an antioxidant action, fading can be prevented, particularly fading of blue-based colors. In the present invention, it may be used in any container, for example, it may be used in a viscous liquid or a pump foamer.

[0026] The pH value of the hair cosmetic composition of the present invention can be adjusted to preferably 5.5 to 8.0, and more preferably 6.0 to 7.0, from the viewpoint of dye color retention and hair color tone.

[0027] Furthermore, in a preferred embodiment of the hair cosmetic composition of the present invention, the surfactant is characterized by being an amphoteric surfactant and / or a nonionic surfactant. The pH of healthy hair is in the range of approximately 4.5 to 5.5, and generally, the ionicity of hair is maintained in equilibrium. In a preferred embodiment, by using an amphoteric surfactant and a nonionic surfactant in combination, applying the hair cosmetic composition of the present invention after applying a hair colorant makes it possible to further improve the color retention of the hair colorant.

[0028] Furthermore, in a preferred embodiment of the hair cosmetic composition of the present invention, from the viewpoint of mitigating skin irritation and preventing color fading, the amphoteric surfactant is characterized by being at least one selected from sulfobetaine type, carbobetine type, or glycine type. Furthermore, in a preferred embodiment of the hair cosmetic composition of the present invention, from the viewpoint of preventing color fading, the sulfobetaine type amphoteric surfactant is characterized by being at least one selected from lauryl hydroxysultaine, lauramidopropyl hydroxysultaine, or lauryl betaine.

[0029] Furthermore, in a preferred embodiment of the hair cosmetic composition of the present invention, from the viewpoint of preventing discoloration, the carbobetaine-type amphoteric surfactant is characterized by being hydroxyalkyl (C12-14) hydroxyethyl sarcosine and / or lauryl hydroxysultaine.

[0030] Furthermore, in a preferred embodiment of the hair cosmetic composition of the present invention, from the viewpoint of preventing discoloration, the glycine-type amphoteric surfactant is characterized by being sodium lauraminopropionate and / or sodium lauroamphoacetate.

[0031] The amount of the amphoteric surfactant is not particularly limited, but from the viewpoint of cleaning power and foaming, it is preferably more than 0 to 20% by mass, and more preferably 5 to 15% by mass, relative to the total amount of the composition.

[0032] Furthermore, in a preferred embodiment of the hair cosmetic composition of the present invention, from the viewpoint of mitigating skin irritation and preventing discoloration, the nonionic surfactant is characterized by being at least one selected from decyl glucoside, (caprylyl / capryl) glucoside, coconut oil alkyl glucoside, lauryl glucoside, and polyglyceryl-10 laurate.

[0033] The amount of the nonionic surfactant is not particularly limited, but from the viewpoint of cleaning power and foaming, it is preferably more than 0 to 20% by mass, and more preferably 1 to 8% by mass, relative to the total amount of the composition.

[0034] Furthermore, while the amount of ferulic acid is not particularly limited, from the viewpoint of exhibiting ultraviolet absorption and antioxidant effects, preventing fading, especially blue-based color fading, and balancing this with cost, it is preferably more than 0 to 5.0% by mass, and more preferably 0.05 to 1.0% by mass, relative to the total amount of the composition.

[0035] Furthermore, in a preferred embodiment of the hair cosmetic composition of the present invention, the pH adjusting agent is characterized by being at least one selected from arginine, lactic acid, citric acid, malic acid, phytic acid, sodium bicarbonate, tetrahydroxypropyl ethylenediamine, or trisodium citrate, from the viewpoint of mitigating skin irritation and preventing discoloration.

[0036] The amount of the pH adjusting agent is not particularly limited, but from the viewpoint of mitigating skin irritation, it is preferably more than 0 to 5.0% by mass, and more preferably 0.05 to 0.75% by mass, relative to the total amount of the composition.

[0037] Furthermore, the present invention may contain polymers, chelating agents, and arginine. The polymer's role is to adhere to the hair surface, providing an antistatic effect and making the hair smoother to the touch. The chelating agent's role is to be incorporated into the hair cosmetic composition, providing a color-fading prevention effect. In addition, by using a chelating agent, improvements in the dyeability of dyed hair (especially color development, depth of color, or uniformity) and the durability of the dye (color-fading prevention) can be expected.

[0038] Furthermore, the experimental results showed that a comparative test of 1) using only a pH adjuster and 2) using both a pH adjuster and a chelating agent revealed that 2) had a higher fade prevention effect.

[0039] Furthermore, arginine has been reported to have the highest pH among basic amino acids, which can raise the pH when incorporated into hair cosmetic compositions. It is also said to have a growth hormone-promoting effect, and it can be expected that it can add further beneficial effects to hair cosmetic compositions used on the scalp.

[0040] In the present invention, the polymer is not particularly limited, but examples include PQ-10 (an abbreviation for polyquaternium), PQ-7, or PQ-22.

[0041] The amount of the polymer is not particularly limited, but from the viewpoint of foaming and usability, it is preferably more than 0 to 2.0% by mass, and more preferably 0.3 to 1.3% by mass, relative to the total amount of the composition.

[0042] Furthermore, in the present invention, the chelating agent is not particularly limited, but examples include edetate (ethylenediaminetetraacetic acid (EDTA)), ethylenediaminehydroxyethyl triacetic acid, dihydroxyethylethylenediaminediacetic acid, 1,3-propanediaminetetraacetic acid, diethylenetriaminepentaacetic acid, triethylenetetraminehexaacetic acid, nitrilotriacetic acid, hydroxyethyliminodiacetic acid, hydroxyethanediphosphonic acid, and salts thereof, and one or more of these can be included in appropriate combinations. The edetate (ethylenediaminetetraacetic acid (EDTA)) salt is not particularly limited, but examples include EDTA-2Na, EDTA-3Na, EDTA-4Na, and one or more of these can be included in appropriate combinations.

[0043] The amount of the chelating agent is not particularly limited, but from the viewpoint of preventing discoloration and stability (risk of precipitation), it is preferably more than 0 to 3.0% by mass, and more preferably 0.05 to 0.5% by mass, relative to the total amount of the composition.

[0044] The amount of arginine is not particularly limited, but from the viewpoint of pH adjustment and discoloration prevention, it is preferably more than 0 to 3.0% by mass, and more preferably 0.05 to 0.5% by mass, relative to the total amount of the composition.

[0045] Furthermore, in a preferred embodiment of the hair cosmetic composition of the present invention, from the viewpoint of preventing discoloration, the hair cosmetic composition is characterized in that it is applied to hair after oxidative dye treatment. The oxidative dye undergoes oxidative polymerization within the hair to develop color and remains within the hair. As seen in the acid dye Coomassie Brilliant Blue and ternatin, an anthocyanin that is a pigment unique to butterfly pea, there are many substances that change from colorless to colored or from red to blue depending on ions and pH. Substances that appear blue and substances that appear other colors are not structurally very different, and the appearance of a substance changes with just the substitution or change of a single functional group. Therefore, by using nonionic surfactants that do not have ionic properties or amphoteric surfactants that have both positive and negative ions (and do not have a stronger ionic appeal than anionic surfactants), it is possible to retain more of the blue-appearing substance within the hair without destroying its structure.

[0046] Furthermore, the color treatment method of the present invention is characterized by comprising the steps of applying a hair colorant containing an oxidative dye and applying the hair cosmetic composition of the present invention.

[0047] In the present invention, the acid dye is not particularly limited, but from the viewpoint of preventing fading, examples include 2,4-diaminophenoxyethanol hydrochloride and 2,5-diamine toluene sulfate. The amount of the acid dye is not particularly limited, but from the viewpoint of dyeing effect, the amount of 2,5-diamine toluene sulfate (or, if using a toluene-2,5-diamine salt, the amount of toluene-2,5-diamine without the salt) relative to the total amount of hair colorant is preferably 0.0005% to 1.7% by weight, more preferably 0.005% to 1.11% by weight, and even more preferably 0.02% to 0.9% by weight. The amount of 2,4-diaminophenoxyethanol hydrochloride (or, if using a 2,4-diaminophenoxyethanol salt, the amount of 2,4-diaminophenoxyethanol without the salt) is preferably 0.001% to 0.35% by weight, more preferably 0.0035% to 0.25% by weight.

[0048] Furthermore, for hair cosmetic compositions, refer to the description of the hair cosmetic composition of the present invention described above. [Examples]

[0049] An embodiment of the present invention will be described below, but the present invention is not limited to the embodiment described below.

[0050] Examples 1-28

[0051] <Testing Method> • We used 100% human gray hair from Viewlux Corporation and dyed it with a two-part oxidative dye. (According to the manufacturer's instructions) Each test tube was immersed in a test tube containing approximately 25g of an aqueous solution with a surfactant. After 24 hours (18 hours depending on the test), the test tubes were rinsed with tap water, dried with a hairdryer, and then color measurements were taken using a Konica Minolta CM-36dG spectrophotometer. We used the color difference ΔE* and Δb* (chromaticity of blueness) to determine whether fading was prevented.

[0052] <Test 1> First, we tested whether blue fading could be prevented using various ionic surfactants. After dyeing with a two-part hair dye, the hair was immersed in a 30% surfactant solution with adjusted pH in a constant temperature bath at 25°C for 24 hours, and color measurement was performed. The two-part hair dyes included blue, a two-part oxidation dye using (coupler) 2,4-diaminophenoxyethanol hydrochloride (precursor) toluene 2,5-diamine sulfate. In this example, Fiole's BL Color (B6) and Wella's Illumina Color (Ocean 6) were used. In this case, since blue fading occurs with NaCl, desalted products or surfactants with the lowest possible salt concentration were used. In this example, Fiole's BL Color (B6) (B stands for blue, and 6 indicates a lightness level of 6. Distributed by Fiole Cosmetics Co., Ltd., manufactured and sold by Sai Shisei Co., Ltd.) and Wella's Illumina Color (Ocean 6) were used. Specifically, Fiole B6 was used as the blue dye, and Milbon Ordeve 9-gLAP (Ordeve (lightness level 9), gLAP = Glow Apricot) was used as the red dye.

[0053] First, Table 1 shows the results when using Fiole B6.

[0054] [Table 1]

[0055] Furthermore, the results when using Milbon Ordeve 9-gLAP are shown in Table 2.

[0056] [Table 2]

[0057] Furthermore, after dyeing with a two-part hair dye, the hair was immersed in a 30% surfactant solution with adjusted pH in a constant temperature bath at 25°C for 24 hours, and the results of color measurement are shown in Tables 3 and 4.

[0058] [Table 3]

[0059] [Table 4]

[0060] Figure 1 shows the results of color measurements using a spectrophotometer for Reference Examples 1 and 2. A smaller ΔE* indicates better prevention of fading. Figure 2 shows the results of color measurements using a spectrophotometer for Reference Examples 3 to 8. Figure 3 shows the results of color measurements using a spectrophotometer for Examples 1 to 7. Figure 4 shows the results of color measurements using a spectrophotometer for Examples 8 to 14.

[0061] These results revealed that anionic surfactants caused significant discoloration (Figure 3, etc.).

[0062] <Exam 2> Next, we tested whether amphoteric surfactants were better betaine-type (aminoacetic acid betaine type, sulfobetaine type, carbobetaine type) or glycine-type. After dyeing with a two-part hair dye, the hair was immersed in a pH-adjusted 5% surfactant solution in a 25°C constant temperature bath for 24 hours, and color measurements were taken. The results when using Fiole B6 are shown in Table 5.

[0063] [Table 5] Table 6 shows the results when using Illumina Ocean 6 (Illumina Color (Ocean 6 brightness), manufactured by Procter & Gamble Japan).

[0064] [Table 6]

[0065] Figure 5 shows the results of color measurements using a spectrophotometer for Examples 15-21. Figure 6 shows the results of color measurements using a spectrophotometer for Examples 22-28.

[0066] These results revealed that sulfobetaine and carbobetaine types have high anti-fading effects. Furthermore, it was found that glycine-type substances, specifically sodium lauaminopropionate, also have a high anti-fading effect.

[0067] Furthermore, based on Test 1, it was found that nonionic compounds (especially polyglyceryl-10 laurate) and amphoteric compounds (especially lauroyl hydroxystein, hydroxyalkyl (C12-14) hydroxyethyl sarcosine, and sodium lauaminopropionate) are more effective at preventing blue discoloration.

[0068] Examples 29-38 <Exam 3> Next, tests were conducted to determine the optimal pH range using polyglyceryl-10 laurate and hydroxyalkyl(C12-14) hydroxyethyl sarcosine as substrates. The results when using Fiole B6 are shown in Tables 7 and 8.

[0069] [Table 7]

[0070] [Table 8]

[0071] Figure 7 shows the results of color measurements using a spectrophotometer for Examples 29-35. Figure 8 shows the results of color measurements using a spectrophotometer for Examples 36-38.

[0072] These results showed that a higher pH was better at preventing blue color fading. It was also found that using arginine was effective in raising the pH. Separate tests were conducted on red, but red showed the opposite behavior, with a lower pH being more effective at preventing fading, thus confirming the need for a special anti-fading shampoo for blue.

[0073] Examples 29-38 <Exam 4> Next, the effects of ferulic acid were verified. After dyeing with a two-part hair dye, the hair was immersed in a 5% surfactant solution in a 25°C constant temperature bath for 18 hours, and color measurement was performed. SDS was used as the surfactant. Since 24-hour immersion resulted in excessive fading, the test was conducted with an 18-hour immersion. The results when using Fiole B6 are shown in Table 9.

[0074] [Table 9] Table 10 shows the results when using Illumina Ocean 6.

[0075] [Table 10]

[0076] Figure 9 shows the results of color measurements using a spectrophotometer for Examples 39-41. Figure 10 shows the results of color measurements using a spectrophotometer for Examples 42-44. In Figures 9 and 10, a smaller b* value indicates that more blue remains.

[0077] These results showed that hair strands containing ferulic acid, particularly those containing 0.5% ferulic acid, exhibited the least color fading.

[0078] As described above, the present invention has made it possible to realize a composition (shampoo) that prevents color fading, particularly blue-based colors (ash), among alkaline hair colors. It has also been found that the composition of the present invention does not need to contain any pigments and is still able to prevent color fading.

[0079] Furthermore, it was found that nonionic surfactants (especially polyglyceryl-10 laurate) or amphoteric surfactants (especially sulfobetaine type, carbobetine type, and among amino acid types, sodium laurylaminopropionate) are suitable as cleansing agents, while anionic surfactants are not suitable for blue-toned products.

[0080] Furthermore, it was found that a pH range of 5.5 to 8.0 is suitable, and that raising the pH by adding arginine, a basic amino acid, is particularly effective. It was also found that the inclusion of ferulic acid (a type of polyphenol), which exhibits UV absorption and antioxidant properties, can prevent fading of blue-toned colors. [Industrial applicability]

[0081] According to the present invention, it is possible to improve the color retention of hair color treatments, and it has high industrial value in a wide range of applications.

Claims

1. A hair cosmetic composition characterized by comprising a surfactant, ferulic acid, and a pH adjuster.

2. The hair cosmetic composition according to claim 1, wherein the surfactant is an amphoteric surfactant and / or a nonionic surfactant.

3. The hair cosmetic composition according to claim 2, wherein the amphoteric surfactant is at least one selected from sulfobetaine type, carbobetine type, or glycine type.

4. The hair cosmetic composition according to claim 3, wherein the sulfobetaine-type amphoteric surfactant is at least one selected from lauryl hydroxysultaine, lauramidopropyl hydroxysultaine, or lauryl betaine.

5. The hair cosmetic composition according to claim 3, wherein the carbobetaine-type amphoteric surfactant is hydroxyalkyl (C12-14) hydroxyethyl sarcosine and / or lauryl hydroxysultaine.

6. The hair cosmetic composition according to claim 3, wherein the glycine-type amphoteric surfactant is sodium lauraminopropionate and / or sodium lauroamphoacetate.

7. The hair cosmetic composition according to claim 1 or 2, wherein the nonionic surfactant is at least one selected from decyl glucoside, (caprylyl / capryl) glucoside, coconut oil alkyl glucoside, lauryl glucoside, and polyglyceryl-10 laurate.

8. The hair cosmetic composition according to claim 1, wherein the pH adjusting agent is at least one selected from arginine, lactic acid, citric acid, malic acid, phytic acid, sodium bicarbonate, tetrahydroxypropyl ethylenediamine, or trisodium citrate.

9. The hair cosmetic composition according to claim 1, wherein the hair cosmetic composition is for application to hair after oxidative dye treatment.

10. A color treatment method comprising the steps of applying a hair colorant containing an oxidative dye and applying the hair cosmetic composition according to claim 1.

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