Hair cosmetics
A hair cosmetic composition with specific higher alcohols and cationic surfactants addresses the issues of stickiness and reduced manageability in leave-in products, offering improved spreadability and non-greasy feel post-oxidative hair dyeing.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- DARIYA
- Filing Date
- 2022-06-03
- Publication Date
- 2026-06-04
Smart Images
Figure 0007870005000001 
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Figure 0007870005000003
Abstract
Description
[Technical Field]
[0001] The present invention relates to a hair cosmetic product to be applied to hair after dyeing with an oxidative hair dye, and more particularly to a hair cosmetic product that provides manageability, moisture, and smoothness to the hair, has good spreadability, and is non-greasy. [Background technology]
[0002] In recent years, hair has tended to become dry and unmanageable due to chemical treatments such as oxidative hair dyes and physical treatments such as blow-drying. To address this, various hair cosmetics have been developed to provide manageability and a smooth feel. Generally, these include rinse-off hair cosmetics such as hair rinses, hair treatments, hair packs, and hair masks, and leave-in hair cosmetics such as hair oils, hair milks, hair creams, and hair mists. Leave-in hair cosmetics can also reduce damage caused by oxidative hair dyes when applied to hair after dyeing.
[0003] It is known that leave-in hair cosmetics of this type are formulated with cationic surfactants, higher alcohols, and oily components to provide a conditioning effect. However, these leave-in hair cosmetics have had drawbacks, such as causing a feeling of heaviness or stickiness rather than moisture during the process from application to drying.
[0004] To address the above issues, a hair cosmetic composition (Patent Document 1) has been disclosed that contains a cationic surfactant, a higher alcohol having 14 to 22 carbon atoms, an alkyl ester of a branched fatty acid having 2 to 6 carbon atoms, and an α-olefin oligomer. [Prior art documents] [Patent Documents]
[0005] [Patent Document 1] Japanese Patent Publication No. 2011-98928 [Overview of the Initiative] [Problems that the invention aims to solve]
[0006] However, while Patent Document 1 examines moisturizing properties, smoothness, and stickiness, it does not examine the ease of application (spreadability) or hair manageability when applied to hair that has been dyed with an oxidative hair dye. [Means for solving the problem]
[0007] The inventors have conducted thorough research and found that (A) higher alcohols with 12 to 24 carbon atoms, and (B) kinematic viscosity at 25°C is 50 mm². 2 Methylpolysiloxane with a viscosity of less than / s, (C)kinematic viscosity at 25°C is 1,000-5,000 mm². 2 We have discovered that by applying a hair cosmetic containing (D) a cationic surfactant and (E) hydroxyethylcellulose to hair after dyeing with an oxidative hair dye, a hair cosmetic can be obtained that provides manageability, moisture, and smoothness to the hair, has good spreadability, and is non-greasy, thus completing the present invention. [Effects of the Invention]
[0008] The present invention provides a hair cosmetic that can be applied to hair after dyeing with an oxidative hair dye, providing manageability, moisture, and smoothness to the hair, while being easily spreadable and non-greasy. [Modes for carrying out the invention]
[0009] The present invention will be described in detail below. Unless otherwise specified, all units indicating content are in mass percent.
[0010] This invention contains (A) a higher alcohol having 12 to 24 carbon atoms, from the viewpoint of hair smoothness and non-stickiness.
[0011] The component (A) used in the present invention is not particularly limited, but examples include lauryl alcohol, myristyl alcohol, cetanol, stearyl alcohol, arachidyl alcohol, behenyl alcohol, 2-decyltetradecanol, etc. One or more of these may be included.
[0012] Of the components (A) used in the present invention, myristyl alcohol, cetanol, stearyl alcohol, and behenyl alcohol are preferred from the viewpoint of hair smoothness and non-greasy feel, and myristyl alcohol is more preferred among them.
[0013] The content of component (A) used in the present invention is not particularly limited, but is preferably 1 to 15%, more preferably 2 to 13%, and even more preferably 3 to 11%. If the content of component (A) is less than 1%, there is a risk that the smoothness of the hair will be reduced or that stickiness will occur. If the content of component (A) exceeds 15%, there is a risk that the smoothness and spreadability of the hair will be reduced.
[0014] This invention, from the viewpoint of moisturizing feel, hair smoothness, and spreadability, has a kinematic viscosity of 50 mm at 25°C. 2 It contains methylpolysiloxane with a content of / s or less.
[0015] The kinematic viscosity of component (B) used in this invention is 50 mm². 2 / s or less, preferably 5-10mm 2 / s is good. The kinematic viscosity of component (B) is 50 mm 2 If the value exceeds / s, the expansion may become less efficient.
[0016] The content of component (B) used in the present invention is preferably 0.1 to 10%, more preferably 0.3 to 5%, and more preferably 0.5 to 2%. If the content of component (B) is less than 0.1%, there is a risk that a moist feeling will not be obtained, or that the smoothness and spreadability of the hair will be poor. If the content of component (B) exceeds 10%, there is a risk that stickiness will occur.
[0017] From the viewpoints of cohesion, moist feeling, and smoothness of hair, the present invention contains a methyl polysiloxane having a kinematic viscosity at 25°C of 1,000 to 5,000 mm 2 / s.
[0018] The kinematic viscosity of the component (C) used in the present invention is 1,000 to 5,000 mm 2 / s, preferably 1,000 to 3,000 mm 2 / s. When the kinematic viscosity of the component (C) is less than 1,000 mm 2 / s, there is a possibility that cohesion and moist feeling cannot be obtained. When the kinematic viscosity of the component (C) exceeds 5,000 mm 2 / s, there is a possibility of stickiness.
[0019] The content of the component (C) used in the present invention is 0.3 to 10%, preferably 0.5 to 8%, more preferably 1 to 5%. When the component (C) is less than 0.3%, there is a possibility that cohesion and moist feeling cannot be obtained or the smoothness of hair may deteriorate. When the component (C) exceeds 10%, there is a possibility of stickiness.
[0020] From the viewpoints of smoothness and elongation of hair, the present invention contains a (D) cationic surfactant.
[0021] The component (D) used in the present invention is not particularly limited. For example, alkyltrimethylammonium salts, dialkyldimethylammonium salts, trialkylammonium salts, monoalkyl ether trimethylammonium salts, benzalkonium-type ammonium salts, alkylpyridinium-type ammonium salts, etc. can be mentioned. The counter ions of the component (D) are not particularly limited, and examples include halide ions such as chloride ions and bromide ions, methyl sulfate ions, ethyl sulfate ions, etc. One or more of these can be contained.
[0022] Of the components (D) used in the present invention, alkyltrimethylammonium salts are preferred from the viewpoint of hair smoothness and ease of extension, and specifically stearyltrimethylammonium chloride, cetyltrimethylammonium chloride, and behenyltrimethylammonium chloride are preferred.
[0023] The content of component (D) used in the present invention is not particularly limited, but is preferably 0.3 to 5%, more preferably 0.5 to 4%, and even more preferably 0.8 to 3%. If the content of component (D) is less than 0.3%, the smoothness and spreadability of the hair may be reduced. If the content of component (D) exceeds 5%, the smoothness and spreadability of the hair may be reduced, and stickiness may occur.
[0024] This invention contains (E) hydroxyethyl cellulose from the viewpoint of cohesiveness and spreadability.
[0025] The content of component (E) used in the present invention is preferably 0.1 to 1%, more preferably 0.2 to 0.9%, and more preferably 0.3 to 0.8%. If the content of component (E) is less than 0.1%, the hair may not be manageable and spreadable. If the content of component (E) exceeds 1%, the hair may not be smooth or spreadable, and it may become sticky.
[0026] The viscosity of the hair cosmetic composition in the present invention is preferably 10,000 to 100,000 mPa·s under conditions of 20°C.
[0027] The viscosity of the hair cosmetic composition in this invention at 20°C was measured by filling a 140g sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.) with 120g of the hair cosmetic composition prepared by a conventional method, allowing it to stand at 20°C for 1 day to regulate the temperature, and then measuring it using a Type B viscometer (Model: Digital Viscometer TVB-10M, manufactured by Toki Sangyo Co., Ltd.) with a No. 4 rotor for 1 minute at a rotation speed of 12 rpm.
[0028] The pH of the hair cosmetic composition in this invention is preferably 3 to 8 under conditions of 20°C.
[0029] The pH of the hair cosmetic composition in this invention at 20°C was measured using a glass electrode type hydrogen ion concentration indicator (F-71, manufactured by Horiba, Ltd.) after the hair cosmetic composition, prepared by a conventional method, was allowed to stand at 20°C for one day to regulate the temperature.
[0030] In addition to the essential components mentioned above, the hair cosmetic composition of the present invention may contain at least one of various components commonly used in cosmetics, quasi-drugs, pharmaceuticals, etc., to the extent that it does not impair the effects. For example, oily components other than component (A), component (B), and component (C), surfactants other than component (D), polymers other than component (E), humectants, chelating agents, protein derivatives, hydrolyzed proteins, stabilizers, antioxidants, plant extracts, vitamins, preservatives, dyes, pigments, powders, UV absorbers, fragrances, etc. However, it is not limited to these examples.
[0031] In the present invention, the formulation of the hair cosmetic is preferably creamy in nature, from the viewpoint of manageability, moisturizing effect, smoothness of the hair, ease of spreadability, and non-stickiness.
[0032] The method of using the hair cosmetic in this invention is preferably to apply it to dry hair after dyeing with an oxidative hair dye, but there is no problem in applying it to wet hair after dyeing with an oxidative hair dye. [Examples]
[0033] 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.
[0034] In the evaluation tests described herein, the ingredients and their contents in the hair cosmetic were varied and tested. All units indicating the content of each ingredient are in mass%, and these were prepared by conventional methods.
[0035] In the evaluation test methods described herein, "cohesion," "moisture," "hair smoothness," "spreadability," and "non-stickiness" were evaluated using the following methods.
[0036] "Cohesion" Using black hair bundles with aligned roots (product number: BS-A, manufactured by Beaulux Co., Ltd.), 5g 20cm hair bundles were prepared. For each 5g hair bundle, the first and second oxidative hair dyes shown in Table 1 were mixed in a mass ratio of 1:2, and 5g of the resulting mixture was uniformly applied. These hair bundles were left at 25°C for 20 minutes, then thoroughly washed with shampoo, towel-dried, and allowed to dry. 0.5g of each hair cosmetic obtained from the examples and comparative examples shown in Tables 2-6 was applied to these hair bundles. Fifteen expert panelists then conducted a cohesiveness evaluation test on these hair bundles, evaluating them according to the following evaluation criteria, and the average score was used as the evaluation result. <Evaluation Criteria> 5: More than 13 out of 15 people felt that the group was cohesive. 4. I felt that groups of 10 to 12 out of 15 people were cohesive. 3. I felt that groups of 7 to 9 out of 15 people were cohesive. 2. I felt that groups of 4 to 6 out of 15 people were cohesive. 1: I felt that groups of 3 or fewer out of 15 people were cohesive.
[0037] "Moist feeling" Using black hair strands with evenly aligned roots (product number: BS-A, manufactured by Beaulux Co., Ltd.), 5g 20cm hair strands were prepared. For each 5g hair strand, the first and second oxidative hair dyes shown in Table 1 were mixed in a mass ratio of 1:2, and 5g of the resulting mixture was uniformly applied. This hair strand was left at 25°C for 20 minutes, then thoroughly washed with shampoo, towel-dried, and allowed to dry. 0.5g of each hair cosmetic obtained in the examples and comparative examples shown in Tables 2-6 was applied to this hair strand. Fifteen expert panelists evaluated the moisturizing effect of this hair strand according to the evaluation criteria below, and the average score was used as the evaluation result. <Evaluation Criteria> 5: More than 13 out of 15 people felt that it had a moisturizing effect. 4. Of the 15 people surveyed, between 10 and 12 felt that it had a moisturizing effect. 3. Of the 15 people surveyed, between 7 and 9 felt that it had a moisturizing effect. 2: Of the 15 people surveyed, 4 to 6 felt that it had a moisturizing effect. 1: Out of 15 people, 3 or fewer felt it had a moisturizing effect.
[0038] "Hair smoothness" Using black hair bundles with evenly aligned roots (product number: BS-A, manufactured by Beaulux Co., Ltd.), 5g 20cm hair bundles were prepared. For each 5g hair bundle, the first and second oxidative hair dyes shown in Table 1 were mixed in a mass ratio of 1:2, and 5g of the resulting mixture was uniformly applied. These hair bundles were left at 25°C for 20 minutes, then thoroughly washed with shampoo, towel-dried, and allowed to dry. 0.5g of each hair cosmetic obtained in the examples and comparative examples shown in Tables 2-6 was applied to these hair bundles. Fifteen expert panelists evaluated the smoothness of these hair bundles according to the evaluation criteria below, and the average score was used as the evaluation result. <Evaluation Criteria> 5: More than 13 out of 15 people felt that their hair was smoother. 4. Of the 15 people surveyed, between 10 and 12 felt that their hair was smooth. 3. Of the 15 people surveyed, between 7 and 9 felt that their hair was smooth. 2: Of the 15 people surveyed, 4 to 6 felt that their hair was smooth. 1: Three or fewer out of 15 people felt that their hair was smooth.
[0039] "Excellent stretchability" Using black hair strands with evenly aligned roots (product number: BS-A, manufactured by Beaulux Co., Ltd.), 5g 20cm hair strands were prepared. For each 5g hair strand, the first and second oxidative hair dyes shown in Table 1 were mixed in a mass ratio of 1:2, and 5g of the resulting mixture was uniformly applied. This hair strand was left at 25°C for 20 minutes, then thoroughly washed with shampoo, towel-dried, and allowed to dry. 0.5g of each hair cosmetic obtained from the examples and comparative examples shown in Tables 2-6 was applied to this hair strand. Fifteen expert panelists evaluated the spreadability of each hair cosmetic on this hair strand. The evaluation was conducted according to the following criteria, and the average score was used as the evaluation result. <Evaluation Criteria> 5: More than 13 out of 15 people felt that the growth was good. 4. I felt that between 10 and 12 out of 15 people showed good improvement. 3. I felt that 7 to 9 out of 15 people showed good improvement. 2: I felt that between 4 and 6 out of 15 people showed good improvement. 1: I felt that 3 or fewer out of 15 people showed good improvement.
[0040] "Non-sticky" Using black hair strands with evenly aligned roots (product number: BS-A, manufactured by Beaulux Co., Ltd.), 5g 20cm hair strands were prepared. For each 5g hair strand, the first and second oxidative hair dyes shown in Table 1 were mixed in a mass ratio of 1:2, and 5g of the resulting mixture was uniformly applied. This hair strand was left at 25°C for 20 minutes, then thoroughly washed with shampoo, towel-dried, and allowed to dry. 0.5g of each hair cosmetic obtained in the examples and comparative examples shown in Tables 2-6 was applied to this hair strand. Fifteen expert panelists evaluated the non-stickiness of this hair strand according to the evaluation criteria below, and the average score was used as the evaluation result. <Evaluation Criteria> 5. More than 13 out of 15 people did not feel any stickiness. 4. Of the 15 people surveyed, between 10 and 12 did not experience any stickiness. 3. Of the 15 people surveyed, 7 to 9 did not experience any stickiness. 2. Of the 15 people surveyed, 4 to 6 did not experience any stickiness. 1: Three or fewer out of 15 people did not feel any stickiness.
[0041] [Table 1]
[0042] [Table 2]
[0043] [Table 3]
[0044] [Table 4]
[0045] [Table 5]
[0046] [Table 6]
[0047] Examples 1 to 40, shown in Tables 2 to 6, yielded favorable results regarding manageability, moisture, hair smoothness, spreadability, and non-stickiness.
[0048] Examples 41 and 42 of the hair cosmetic are described below.
[0049] The hair cosmetic products obtained in Examples 41 and 42 showed good results in terms of manageability, moisturizing effect, hair smoothness, spreadability, and non-stickiness.
[0050] <Example 41> Component Content (mass%) (A) Myristyl alcohol 5.00 (A) Cetanol 0.10 (B) Methylpolysiloxane (10mm 2 / s) 1.00 (C) Methylpolysiloxane (3,000 mm 2 / s) 4.00 (D) Stearyltrimethylammonium chloride 0.98 (D) Behenyltrimethylammonium chloride 0.16 (E) Hydroxyethylcellulose 0.50 Propylene glycol 6.00 Ethanol 0.46 Aminopropyl dimethicone 0.05 Methylphenylpolysiloxane 1.05 Phenoxyethanol 0.30 Glycerin mono-2-ethylhexyl ether 0.10 Concentrated glycerin 2.00 1,3-Butylene glycol 4.00 Disodium edetate 0.02 Fragrance 0.15 Purified water 74.13 Total 100.00
[0051] <Example 42> Component Content (mass%) (A) Myristyl alcohol 7.00 (B) Methylpolysiloxane (10mm 2 / s) 0.50 (C) Methylpolysiloxane (3,000 mm 2 / s) 2.00 (D) Stearyltrimethylammonium chloride 1.40 (D) Behenyltrimethylammonium chloride 0.24 (E) Hydroxyethylcellulose 0.50 Propylene glycol 6.00 Ethanol 0.66 Octyldodecyl myristate 2.00 Glyceryl tri-2-ethylhexanoate 2.00 N-lauroyl-L-glutamic acid Di(phytosteryl·2-octyldodecyl) 0.20 Highly polymerized methylpolysiloxane 1.50 Phenoxyethanol 0.40 Glycerin mono-2-ethylhexyl ether 0.10 Concentrated glycerin 2.00 1,3-Butylene glycol 4.00 Disodium edetate 0.02 Fragrance 0.15 Purified water 63.83 Total 100.00 [Industrial applicability]
[0052] The present invention provides a hair cosmetic that can be applied to hair after dyeing with an oxidative hair dye, providing manageability, moisture, and smoothness, while being easily spreadable and non-greasy.
Claims
[Claim 1] A hair cosmetic product to be applied to hair after dyeing with an oxidative hair dye, (A) Myristyl alcohol (B) Kinematic viscosity at 25°C is 5-10 mm ２ / s methylpolysiloxane (C) Kinematic viscosity at 25°C: 1,000–3,000 mm² ２ / s methylpolysiloxane (D) Cationic surfactants (E) Hydroxyethylcellulose A hair cosmetic comprising the following, wherein the content of component (A) is 3 to 11% by mass, the content of component (B) is 0.5 to 2% by mass, the content of component (C) is 1 to 5% by mass, the content of component (D) is 0.8 to 3% by mass, and the content of component (E) is 0.3 to 0.8% by mass.