Hair cosmetic composition

Abstract

To provide a hair cosmetic composition that has excellent usability during application, improves the hair conditions before and after the use of a hair coloring agent or a permanent agent, does not impair the effect of the hair coloring agent or permanent agent, and has excellent stability over time.SOLUTION: A hair cosmetic composition is used before the use of a hair coloring agent or a permanent agent, the hair cosmetic composition containing (A) a nonionic thickener, (B) a cationic thickener, (C) a polyhydric alcohol, (D) ethanol, and (E) organic acid.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a hair cosmetic composition. [Background technology]

[0002] Nowadays, it is not uncommon to change hair color using hair coloring agents such as oxidative hair dyes and bleaches, or to change hairstyles using perm agents such as permanent wave agents and hair straighteners at home using commercially available products rather than going to a beauty salon.

[0003] Commercially available hair coloring or perming products for home use are designed to have a consistent effect regardless of hair type, so depending on the individual's hair type, the amount of active ingredients (alkaline or oxidizing agents) may be slightly excessive. As a result, the hair may be damaged by the effects of the hair coloring or perming product.

[0004] In light of this, pretreatment agents have been developed to protect hair before the use of hair coloring agents or perms. For example, there is an oily pretreatment agent containing a specific ester oil that improves the condition of hair without impairing the effects of the hair coloring agent or perm (Patent Document 1), and there is also a pretreatment agent containing a specific organic acid that suppresses damage to hair after the use of a hair coloring agent or perm (Patent Document 2). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-195705 [Patent Document 2] Japanese Patent Publication No. 2020-11905 Summary of the Invention [Problem to be solved by the invention]

[0006] However, the oily pretreatment agent described in Patent Document 1 spreads poorly when applied to hair, potentially failing to penetrate the entire length of the hair, while the aqueous pretreatment agent described in Patent Document 2 raises concerns about dripping during application. In everyday life, hair is often damaged by UV rays and combing with a brush, and using a hair coloring agent or perm agent can further exacerbate the damage. Therefore, it was necessary to restore hair to a healthy condition before using a hair coloring agent or perm agent. Furthermore, the oily pretreatment agent forms a film on the hair, inhibiting the effects of the hair coloring agent or perm agent, resulting in issues such as dissatisfaction with the finished hair condition. Furthermore, its stability over time under low-temperature and high-temperature conditions was unclear, leaving room for improvement. [Means for solving the problem]

[0007] As a result of intensive research into solving the above problems, the present inventors have found that the above problems can be solved by providing a hair cosmetic composition to be used before the use of a hair coloring agent or a perm agent, the hair cosmetic composition comprising (A) a nonionic thickener, (B) a cationic thickener, (C) a polyhydric alcohol, (D) ethanol, and (E) an organic acid, and have thus completed the present invention. [Effects of the Invention]

[0008] The present invention provides a hair cosmetic composition that is easy to use when applied, conditions the hair before and after use of a hair coloring agent or a perm agent, does not impair the effects of the hair coloring agent or the perm agent, and is stable over time. DETAILED DESCRIPTION OF THE INVENTION

[0009] The present invention will be described in detail below. Note that the units indicating the contents are all % by mass unless otherwise specified.

[0010] The hair cosmetic composition according to the present invention contains (A) a nonionic thickener from the viewpoint of ease of application.

[0011] The component (A) used in the present invention is not particularly limited, and examples thereof include hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose, polyvinyl alcohol, polyvinylpyrrolidone, dextrin, etc., and one or more selected from these may be contained. Among these, from the viewpoint of improving usability during application, hydroxyethyl cellulose and hydroxypropyl cellulose are preferred, and hydroxyethyl cellulose is more preferred.

[0012] The content of the component (A) used in the present invention is not particularly limited, but is preferably 0.2 to 1.5%, more preferably 0.5 to 1.2%. If the content of the nonionic thickener (A) is less than 0.2% or more than 1.5%, the usability during application may be impaired.

[0013] The hair cosmetic composition according to the present invention contains (B) a cationic thickener from the viewpoint of conditioning the hair before and after the use of a hair coloring agent or a perm agent.

[0014] The component (B) used in the present invention is not particularly limited, and examples thereof include O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethylcellulose chloride, O-[2-hydroxy-3-(trimethylammonio)propyl]guar gum chloride, locust bean hydroxypropyltrimonium chloride, polydimethyldimethylenepyrrolidinium chloride, dimethyldiallylammonium chloride-acrylamide copolymer, and dimethyldiallylammonium chloride-acrylic acid copolymer, and one or more selected from these may be contained. Among these, from the viewpoint of conditioning hair before and after the use of hair coloring agents or perms, preferred are O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethylcellulose chloride and O-[2-hydroxy-3-(trimethylammonio)propyl]guar gum chloride, and more preferably O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethylcellulose chloride.

[0015] The hair cosmetic composition according to the present invention contains (C) a polyhydric alcohol from the viewpoint of conditioning the hair before and after the use of a hair coloring agent or a perm agent.

[0016] The component (C) used in the present invention is not particularly limited, and examples thereof include glycerin, 1,3-butylene glycol, ethylene glycol, dipropylene glycol, 1,2-pentanediol, 1,2-hexanediol, propylene glycol, diethylene glycol, polyethylene glycol, etc., and the composition may contain one or more selected from these. Among these, from the viewpoint of conditioning the hair before and after the use of a hair coloring agent or a perm agent, preferred are glycerin and ethylene glycol, and more preferred are glycerin.

[0017] The total amount of the components (B) and (C) in the hair cosmetic composition of the present invention is not particularly limited, but is preferably 2.1 to 7.6%, more preferably 3.4 to 6.2%. If the total amount of the components (B) and (C) is less than 2.1%, the usability during application may be impaired, and the hair condition may not be maintained before and after use of a hair coloring agent or perm. If the total amount of the components (B) and (C) is more than 7.6%, the hair condition may not be maintained before and after use of a hair coloring agent or perm, and the effectiveness of the hair coloring agent or perm may be impaired.

[0018] The mass ratio (B) / (C) of the content of the component (B) and the component (C) used in the present invention is not particularly limited, but from the viewpoint of conditioning the hair before and after the use of a hair coloring agent or a perm agent, it is preferably in the range of 0.05 to 0.27, more preferably 0.13 to 0.24.

[0019] The hair cosmetic composition according to the present invention contains (D) ethanol in order to enhance the effects of the hair coloring agent or perm agent.

[0020] The content of the component (D) used in the present invention is not particularly limited, but is preferably 15 to 45%, more preferably 20 to 40%. If the component (D) is less than 15%, the ease of application and the effectiveness of the hair coloring agent or perm agent may be impaired. If the component (D) is more than 45%, the ease of application and the effectiveness of the hair coloring agent or perm agent may be impaired, and the condition of the hair before and after use of the hair coloring agent or perm agent may not be maintained.

[0021] The hair cosmetic composition according to the present invention contains an organic acid (E) from the viewpoint of stability over time.

[0022] The component (E) used in the present invention is not particularly limited, and examples thereof include lactic acid, citric acid, oxalic acid, malic acid, succinic acid, etc., and one or more selected from these may be contained. Among these, from the viewpoint of improving stability over time, lactic acid and malic acid are preferred, and lactic acid is more preferred.

[0023] The content of the component (E) used in the present invention is not particularly limited, but is preferably 0.01 to 0.1%, more preferably 0.02 to 0.08%. If the content of the component (E) is less than 0.01% or more than 0.1%, the stability over time may be reduced.

[0024] The appearance of the hair cosmetic composition according to the present invention is not particularly limited, but from the viewpoint of stability over time, it is preferably transparent.

[0025] The hair cosmetic composition of the present invention may contain, in addition to the above-mentioned components, components commonly used in cosmetics, so long as the effects of the present invention are not impaired. For example, oils such as higher alcohols and higher fatty acids, surfactants, moisturizers, antioxidants, UV absorbers, chelating agents, preservatives, antibacterial agents, protein derivatives, hydrolyzed proteins, amino acids, stabilizers, fragrances, animal and vegetable oils, vitamins, plant extracts, inorganic salts, etc., and one or more of these may be contained depending on the purpose.

[0026] The viscosity of the hair cosmetic composition according to the present invention at 20° C. is not particularly limited, but is preferably 2,000 to 10,000 mPa·s.

[0027] In the present invention, the viscosity is measured by preparing a hair cosmetic composition by a conventional method, filling 120 g of the obtained hair cosmetic composition into a sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.), and measuring the viscosity using a B-type viscometer (model: digital viscometer TVB-10M, manufactured by Toki Sangyo Co., Ltd.) with an M4 rotor for 1 minute at a rotation speed of 30 rpm at 20°C.

[0028] The pH of the hair cosmetic composition according to the present invention at 20° C. is not particularly limited, but is preferably 4.0 to 6.0.

[0029] In the present invention, the pH is adjusted by a conventional method, and 120 g of the obtained hair cosmetic composition is filled into a sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.), and the pH is measured at 20°C using a glass electrode type hydrogen ion concentration indicator (F-71: manufactured by Horiba, Ltd.).

[0030] The formulation of the hair cosmetic composition according to the present invention is not particularly limited, but it is preferably a viscous liquid.

[0031] The method of using the hair cosmetic composition according to the present invention is preferably to apply it to the dry scalp and entire hair, and then immediately thereafter use a hair coloring agent or perm agent according to the prescribed dosage and administration without rinsing off the hair cosmetic composition. [Example]

[0032] The present invention will be described in more detail below with reference to examples, but these examples are not intended to limit the present invention in any way.

[0033] In the evaluation tests described herein, the components contained in the hair cosmetic compositions and their contents were varied. The units used to indicate the contents of each component are % by mass. These were prepared by conventional methods, and the evaluation tests were carried out using the obtained hair cosmetic compositions.

[0034] In the invention described herein, the "ease of use during application," "condition of hair before and after use of the hair coloring agent or perm agent," "effect of the hair coloring agent or perm agent," and "stability over time" were evaluated.

[0035] In the evaluation tests shown in this specification, the "usability during application" was evaluated by a comparative evaluation of 20 expert panelists who applied 20 g of the obtained hair cosmetic composition to the dry scalp and entire hair.

[0036] In the evaluation tests shown in this specification, the "condition of hair before and after use of a hair coloring agent or perm agent" and the "effects of a hair coloring agent or perm agent" were evaluated by applying 10 g of the obtained hair cosmetic composition to half of the dry hair of a hair test doll ("Cutting Mannequin No. 775N" manufactured by Beaulux Co., Ltd.), and immediately thereafter, without rinsing off the hair cosmetic composition, applying the hair coloring agent or perm agent to the entire hair according to the prescribed usage and dosage. This process was carried out by a total of 20 expert panelists, 10 of each, and each was compared and evaluated.

[0037] The hair coloring agent is prepared by mixing the first and second hair coloring agents described in Formulation Example 1 in a 1:1 ratio, applying a total of 100g to the hair, leaving it for 20 minutes, rinsing with lukewarm water at 40°C, washing thoroughly with shampoo, wiping off the water with a towel, and drying with a hair dryer. The perm agent is prepared by applying 100g of the first perm agent described in Formulation Example 2 to the hair, leaving it for 15 minutes, rinsing with lukewarm water at 40°C, applying 100g of the second perm agent to the hair, leaving it for 15 minutes, rinsing with lukewarm water at 40°C, wiping off the water with a towel, and drying with a hair dryer.

[0038] In the evaluation tests shown in this specification, "stability over time" was evaluated by filling 120 g of the obtained hair cosmetic composition into a sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.), leaving it in a thermostatic chamber at 5°C and 50°C for 3 months, and then visually inspecting the appearance.

[0039] Evaluation criteria for "ease of use when applying" ◎: More than 16 out of 20 people answered that it could be applied smoothly to the entire scalp and hair without dripping from the hands. 〇: Between 6 and 15 out of 20 people answered that it could be applied smoothly to the entire scalp and hair without dripping from the hands. ×: Less than 5 out of 20 people answered that it could be applied smoothly to the scalp and entire hair without dripping from the hands.

[0040] Evaluation criteria for "Hair condition before and after using hair coloring or perming agents" ◎: More than 8 out of 10 people answered that it was smooth and easy to run their fingers through. 〇: 3 to 7 out of 10 people answered that their hair felt smooth and silky to the touch. ×: Less than 2 out of 10 people answered that it was smooth and easy to run their fingers through.

[0041] Evaluation criteria for "effects of hair coloring or perming agents" ◎: More than 8 out of 10 people answered that they felt a clear effect 〇: 3 to 7 out of 10 people answered that they felt a clear effect. ×: Less than 2 out of 10 people answered that they felt a clear effect

[0042] Evaluation criteria for "stability over time" ◎: No layer separation and no cloudiness at all ◯: No layer separation, slight cloudiness ×: Layer separation or cloudy

[0043] First evaluation test In the first evaluation test, hair cosmetic compositions containing various types and amounts of nonionic thickener (A) were evaluated. Table 1 shows the ingredients, amounts, and evaluation results of the hair cosmetic compositions.

[0044] [Table 1]

[0045] In Examples 1 to 6, good results were obtained even when the type and content of the (A) nonionic thickener were changed in various ways.

[0046] Second evaluation test In the second evaluation test, hair cosmetic compositions containing various types and amounts of (B) cationic thickener and (C) polyhydric alcohol were evaluated. Table 2 shows the ingredients, amounts, and evaluation results of the hair cosmetic compositions.

[0047] [Table 2]

[0048] In Examples 7 to 14, good results were obtained even when the types and contents of the (B) cationic thickener and the (C) polyhydric alcohol were changed in various ways.

[0049] Third evaluation test In the third evaluation test, hair cosmetic compositions containing various amounts of (D) ethanol were evaluated. Table 3 shows the ingredients, contents, and evaluation results of the hair cosmetic compositions.

[0050] [Table 3]

[0051] In Examples 15 to 19, good results were obtained even when the content of (D) ethanol was changed in various ways.

[0052] 4th Evaluation Test In the fourth evaluation test, hair cosmetic compositions containing various types and amounts of (E) organic acid were evaluated. Table 4 shows the ingredients, amounts, and evaluation results of the hair cosmetic compositions.

[0053] [Table 4]

[0054] In Examples 20 to 25, good results were obtained even when the type and content of the (E) organic acid was changed in various ways.

[0055] Examples 26 and 27 are shown below. The hair cosmetic compositions obtained in Examples 26 and 27 gave good results in terms of "usability during application," "hair condition before and after use of a hair coloring agent or a perm agent," "effects of a hair coloring agent or a perm agent," and "stability over time."

[0056] Example 26 <Hair cosmetic composition> Element Content (%) (A) O-[2-hydroxy-3-(trimethylammonio) chloride Propyl]hydroxyethyl cellulose 0.80 (B) Hydroxyethyl cellulose 0.80 (C) Glycerin 4.00 (D) Ethanol 30.00 (E) Lactic acid 0.05 1,3-butylene glycol 6.00 Potassium hydroxide 0.02 Methyl parahydroxybenzoate 0.10 Disodium edetate 0.02 Hydrolyzed silk liquid 0.01 Seaweed extract (1) 0.01 Purified water 58.19 Total 100.00 Viscosity (20℃): 4,900mPa·s pH(20℃):5.07

[0057] Example 27 <Hair cosmetic composition> Element Content (%) (A) O-[2-hydroxy-3-(trimethylammonio) chloride Propyl]hydroxyethyl cellulose 0.80 (B) Hydroxyethyl cellulose 0.80 (C) Glycerin 4.00 (D) Ethanol 30.00 (E) Lactic acid 0.05 1,3-butylene glycol 6.00 Polyoxyethylene hydrogenated castor oil (60E.O.) 0.30 Potassium hydroxide 0.02 Methyl parahydroxybenzoate 0.10 Disodium edetate 0.02 Hydrolyzed silk liquid 0.01 Seaweed extract (1) 0.01 Fragrance 0.03 Purified water 57.86 Total 100.00 Viscosity (20℃): 4,780mPa·s pH(20℃):5.06

[0058] (Prescription Example 1) <Hair color 1st agent> Element Content (%) Paraaminophenol 0.2 Resorcinol 0.2 Cetyl alcohol 3.0 Stearyltrimethylammonium chloride 2.0 Polyoxyethylene cetyl ether (20E.O.) 3.0 Liquid Paraffin 2.0 L-ascorbic acid 0.5 Monoethanolamine liquid (80%) 8.0 Ammonia water (28%) 4.0 Purified water 77.1 Total 100.0 <Hair color second agent> Element Content (%) Cetyl alcohol 1.0 Stearyltrimethylammonium chloride 0.3 Polyoxyethylene stearyl ether (20E.O.) 0.5 Liquid paraffin 0.2 Hydroxyethanediphosphonic acid liquid 0.1 Hydrogen peroxide (35%) 17.0 Purified water 80.9 Total 100.0

[0059] (Prescription example 2) <Perm 1st Agent> Element Content (%) Cetyl alcohol 7.0 Stearyltrimethylammonium chloride 2.0 Polyoxyethylene cetyl ether (10E.O.) 2.0 Methylpolysiloxane 2.0 Concentrated glycerin 1.0 Hydroxyethanediphosphonic acid liquid 0.2 Diammonium hydrogen phosphate 1.5 Ammonium chloride 0.5 Urea 1.5 Guanidine carbonate 5.0 L-Cysteine ​​Hydrochloride 2.0 Monoethanolamine thioglycolate solution (50%) 17.0 40% Diammonium Dithiodiglycolate Solution 7.0 Monoethanolamine liquid (80%) 1.0 Purified water 50.3 Total 100.0 <Perm 2nd Agent> Element Content (%) Cetyl alcohol 8.0 Stearyltrimethylammonium chloride 2.0 Polyoxyethylene stearyl ether (20E.O.) 0.5 Liquid Paraffin 2.0 Hydroxyethanediphosphonic acid liquid 0.1 Hydrogen peroxide (35%) 7.0 Purified water 80.4 Total 100.0 [Industrial Applicability]

[0060] The present invention can provide a hair cosmetic composition that is excellent in usability when applied, conditions the hair before and after use of a hair coloring agent or a perm agent, does not impair the effects of the hair coloring agent or the perm agent, and has excellent stability over time.

Claims

1. A hair cosmetic composition to be used before using a hair coloring agent or a perm agent, (A) one or more selected from hydroxyethyl cellulose and hydroxypropyl cellulose, (B) one or more selected from O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethylcellulose chloride and O-[2-hydroxy-3-(trimethylammonio)propyl]guar gum chloride; (C) one or more selected from glycerin and ethylene glycol, (D) ethanol, (E) one or more selected from lactic acid and malic acid a content of the component (A) of 0.2 to 1.5% by mass, a total content of the components (B) and (C) of 2.1 to 7.6% by mass, a mass ratio of the contents (B) / (C) of 0.05 to 0.27, a content of the component (D) of 15 to 45% by mass, and a content of the component (E) of 0.01 to 0.1% by mass.

2. A method of applying the hair cosmetic composition described in claim 1 to the dry scalp and entire hair, and then using a hair colorant or perm agent immediately thereafter without rinsing off the hair cosmetic composition.

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