Lipid penetration-promoting composition for hair and hair cosmetic for rinse-off use comprising lipid penetration-promoting composition for hair

Abstract

To provide a lipid penetration-promoting composition for hair which offers favorable usability and exhibits superior ability to promote lipid penetration into hair, the lipids being depleted due to daily damage such as shampooing and aging, and a hair cosmetic for rinse-off use comprising the lipid penetration-promoting composition for hair.SOLUTION: A lipid penetration-promoting composition for hair comprises (A) a cationic surfactant, (B) a polyglyceryl fatty acid ester, and (C) at least one lipid selected from the group consisting of sterols or derivatives thereof, sphingolipids, and lipophilic dyes, wherein the molar ratio (A / B) of the cationic surfactant (A) to the polyglyceryl fatty acid ester (B) is 1.0 to 5.1, and the content of the polyglyceryl fatty acid ester (B) is 0.8 to 4.0 mass% relative to the total mass of the lipid penetration-promoting composition.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to a composition for promoting lipid penetration into hair and a hair cosmetic used as a rinse containing the composition for promoting lipid penetration into hair.

Background Art

[0002] Hair is a collection of dead cells, but it exists as part of the human body for about 4 to 6 years. Since hair has no self-healing ability, damage accumulates in daily life, and there is a risk of developing significant damage after several years. For example, hair washing is routinely performed regardless of age or gender and is essential for removing dirt from the scalp and hair and maintaining cleanliness. Generally, shampoos are mainly based on anionic surfactants for removing hair dirt, and the hair tip part of the hair will be exposed to the surfactant more than 1500 times until it regrows if it is not cut. In addition, hair is damaged by heat, ultraviolet rays, chemical substances such as hair styling products and hair dyes, and physical contact such as rubbing.

[0003] Hair cleansing and conditioning compositions are known (Patent Document 1) that can provide gentle cleansing and at the same time effectively supply nutrients to damaged hair by not containing anionic (sulfate) surfactants. However, the composition aims to have both functions of hair washing and conditioning. Furthermore, the effect of the lipid permeability of the composition to hair has not been clarified.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] Hair cosmetics used by rinsing are commonly used by many people on a daily basis, but the time they are applied to the hair is short. Therefore, it has been required to quickly penetrate the components into the hair within the short time that hair cosmetics used by rinsing are applied. Accordingly, an object of the present invention is to provide a lipid penetration promoting composition for hair and a hair cosmetic used by rinsing containing the lipid penetration promoting composition for hair, which have good usability and are excellent in quickly penetrating lipids lost due to daily damage such as hair washing and aging into the hair.

Means for Solving the Problems

[0006] The present invention relates to the following content. [1] A lipid penetration promoting composition for hair containing (A) a cationic surfactant, (B) a polyglycerol fatty acid ester, and (C) one or more lipids selected from the group consisting of sterols or their derivatives, sphingolipids, and lipophilic dyes, wherein the blending molar ratio (A / B) of the (A) cationic surfactant to the (B) polyglycerol fatty acid ester is 1.0 to 5.1, and the blending amount of the (B) polyglycerol fatty acid ester is 0.8 to 4.0% by mass based on the total mass of the lipid penetration promoting composition. [2] The lipid penetration promoting composition for hair according to [1], wherein the HLB of the (B) polyglycerol fatty acid ester is 10 to 16. [3] The lipid penetration promoting composition for hair according to [1] or [2], wherein the fatty acid constituting the (B) polyglycerol fatty acid ester is a linear saturated fatty acid. [4] A hair cosmetic used by rinsing, containing the lipid penetration promoting composition for hair according to any one of [1] to [3].

Effects of the Invention

[0007] According to the present invention, there are provided a lipid penetration promoting composition for hair, which has good usability and is excellent in quickly penetrating lipids lost due to daily damage such as shampooing or aging into the hair, and a hair cosmetic used by rinsing, which uses the same. Therefore, by using the hair cosmetic of the present invention, it is possible to maintain beautiful hair with luster and firmness.

Embodiments for Carrying Out the Invention

[0008] Hereinafter, the present invention will be described with reference to embodiments, but the present invention is not limited to the following embodiments.

[0009] 〔Lipid Penetration Promoting Composition for Hair〕 The present invention relates to a lipid penetration promoting composition for hair containing (A) a cationic surfactant, (B) a polyglycerol fatty acid ester, and (C) one or more lipids selected from the group consisting of sterols or their derivatives, sphingolipids, and lipophilic dyes, wherein the blending molar ratio (A / B) of the (A) cationic surfactant to the (B) polyglycerol fatty acid ester is 1.0 to 5.1, and the blending amount of the (B) polyglycerol fatty acid ester is 0.8 to 4.0% by mass based on the total mass of the lipid penetration promoting composition.

[0010] 〔Hair Cosmetic〕 The hair cosmetic of the present invention means any cosmetic used for hair, and widely includes so-called hair cleaning agents such as shampoos, and so-called hair treatment agents such as hair rinses, hair treatments, and hair packs. In particular, shampoos or treatments are preferred. 〔Hair Cosmetic Used by Rinsing〕 The present invention also relates to a hair cosmetic used by rinsing, which contains the above-described lipid penetration promoting composition for hair.

[0011] 〔Cationic Surfactant〕 (A) Cationic surfactants include, but are not limited to, for example, alkyl quaternary ammonium salts such as monoalkyl type quaternary ammonium salts, dialkyl type quaternary ammonium salts, trialkyl type quaternary ammonium salts, benzalkonium type quaternary ammonium salts, monoalkyl ether type quaternary ammonium salts, etc., amine salts such as alkylamine salts, fatty acid amide amine salts, ester-containing tertiary amine salts, arkovel type tertiary amine salts, etc., alkyl pyridinium salts, benzethonium chloride, and the like. (A) Preferred examples of cationic surfactants include steartrimonium chloride which is a monoalkyl type quaternary ammonium salt, stearamidopropyldimethylamine which is a fatty acid amide amine salt, and the like.

[0012] [Polyglycerol fatty acid ester] (B) Polyglycerol fatty acid ester is a compound in which polyglycerol and a fatty acid are ester-bonded. In the polyglycerol fatty acid ester used in the present invention, as the fatty acid, either saturated or unsaturated fatty acids, natural or synthetic fatty acids can be used. For example, saturated fatty acids include, but are not limited to, caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid, behenic acid, lignoceric acid, cerotic acid, combinations thereof, derivatives thereof, and the like. (B) The fatty acid constituting the polyglycerol fatty acid ester is preferably a linear saturated fatty acid. Also, the HLB value is preferably from 8 to 18, more preferably from 10 to 16, and even more preferably from 12 to 15. Preferred examples of such polyglycerol fatty acid esters include polyglyceryl-10 laurate, polyglyceryl-10 stearate, and the like.

[0013] (B) The content of the polyglycerol fatty acid ester is preferably 0.8 to 4.0% by mass based on the total mass of the composition. From the viewpoint of lipid permeability, 1.0% by mass or more is more preferable, and 1.5% by mass or more is even more preferable. From the viewpoint of usability, 3.5% by mass or less is more preferable, and 2.7% by mass or less is even more preferable. Further, the compounding molar ratio (A / B) of the (A) cationic surfactant to the (B) polyglycerol fatty acid ester is 1.0 to 5.1.

[0014] 〔Lipid〕 (C) Examples of one or more lipids selected from the group consisting of sterols and their derivatives, sphingolipids, and lipophilic dyes include, but are not limited to, sterols such as cholesterol, phytosterol, lanosterol, etc.; their derivatives such as macadamia nut fatty acid phytosteryl, di(isostearyl / phytosteryl) dimer dilinoleate, di(phytosteryl / octyldodecyl) lauroyl glutamate, di(octyldodecyl / phytosteryl / behenyl) lauroyl glutamate, etc.; sphingolipids such as sphingomyelin lipids such as sphingomyelin, sphingoglycolipids such as cerebroside and ganglioside; and lipophilic dyes such as Nile red, carotene, lutein, etc.

[0015] 〔Others〕 In addition to the above-mentioned components (A) to (C), the hair cosmetic composition of the present invention may contain any optional components that are commonly used in hair cosmetics, provided that they do not affect the intended effects of the present invention. Examples of such optional components include hydrocarbons such as petrolatum and microcrystalline wax, esters such as jojoba oil and jojoba butter, triglycerides such as beef tallow and olive oil, silicones such as dimethicone and cyclopentasiloxane, higher alcohols such as hydrogenated rapeseed oil alcohol, myristyl alcohol, and behenyl alcohol, fatty acids such as stearic acid and myristic acid, dipropylene glycol, glycerin, 1,3-butylene glycol, sodium pyrrolidone carboxylate, hyaluronic acid, chondroitin sulfate, chitin, and the like. Examples of the surfactants include moisturizing agents such as tosan and sucrose, nonionic surfactants such as sucrose fatty acid esters and polyoxypropylene alkyl ethers, anionic surfactants, amphoteric surfactants, thickeners such as xanthan gum, carboxyvinyl polymers and polyethylene glycol, physiologically active ingredients such as amino acids, hydrolyzed keratin, silk and collagen protein derivatives, pH adjusters such as lactic acid, sodium lactate, potassium hydroxide and sodium hydroxide, fragrances including essential oils, preservatives, pearlizing agents, ethanol, water, etc., and one or more of these can be blended.

[0016] (Other embodiments) As described above, the present invention has been described by the embodiments, but the description forming part of this disclosure should not be understood as limiting the present invention. Various alternative embodiments, examples and operating techniques will become apparent to those skilled in the art from this disclosure. EXAMPLES

[0017] The present invention will be described in more detail below with reference to examples and comparative examples, although the scope of the present invention is not limited to these examples and comparative examples.

[0018] (1) Preparation of lipid permeation enhancing composition Example 1 To purified water, 1.68 g of (A) a cationic surfactant (manufactured by Toho Chemical Industry Co., Ltd., raw material name: Katinal STC-80, display name: Stearyltrimonium Chloride), 0.9 g of (B) polyglyceryl fatty acid ester (manufactured by Taiyo Chemical Co., Ltd., raw material name: Sansoft M-12J, display name: Polyglyceryl-10 Laurate), 0.0001 g of (C) lipid, 0.18 g of lactic acid as other component, and 0.75 g of Na lactate were added, making a total of 100 g, and the mixture was heated and mixed with stirring. For the lipid of component (C), Nile Red (manufactured by Fujifilm Wako Pure Chemical Corporation, Nile Red), which is a lipophilic dye, was used as a fluorescent label.

[0019] (Examples 2 to 13, Comparative Examples 1 to 14) The lipid penetration promoting compositions of Examples 2 to 13 and Comparative Examples 1 to 14 were prepared in the same manner as in Example 1 with the formulations described in Tables 1 and 2. In Examples 13, Comparative Examples 13 and 14, as the lipid of component (C), cholesterol labeled with a fluorescent label (manufactured by Funakoshi Co., Ltd., raw material name: 22-NBD Cholesterol) was used.

[0020] (2) Evaluation of usability (Method) The lipid penetration promoting compositions of Examples 1 to 13 and Comparative Examples 1 to 14 were applied to hair, rinsed with water, and dried. (Evaluation of usability) By sensory evaluation, those with no stickiness and good usability were marked as "〇", and those with stickiness were marked as "×".

[0021] (3) Evaluation of lipid permeability to hair (measurement by fluorescence spectrophotometer) (Sample) Test hair bundles (human hair: BS-B-3A, length 30 cm) manufactured by Vurax were immersed in the lipid penetration promoting compositions of Examples 1 to 13 and Comparative Examples 1 to 14 for 5, 15, 30, 45, or 60 minutes. After a predetermined time had elapsed, the supernatant was used as a sample, and the fluorescence intensity was measured with a fluorescence spectrophotometer (FP-8500 manufactured by JASCO Corporation).

[0022] (Calibration curve preparation) The lipid penetration-promoting compositions of Examples 1 to 13 and Comparative Examples 1 to 14 were diluted to various concentrations with purified water, and a calibration curve was created by measuring the fluorescence intensity of the fluorescent label.

[0023] (Calculation of the amount of lipid penetration into hair) The concentration of the fluorescent label in the sample was calculated from the fluorescence intensity of the measured sample, and the difference from the initial concentration was calculated as the penetration amount into the hair.

[0024] (Evaluation of lipid permeability into hair) (A) With the amount of lipid penetration into the hair at each treatment time with the component alone (Comparative Example 1) taken as 100%, the amounts of lipid penetration into the hair of the lipid penetration-promoting compositions of Examples 1 to 13 and Comparative Examples 2 to 14 were compared. Those with a lipid penetration amount of 110% or more at both immersion times of 5 minutes and 15 minutes were marked as "〇", and those less than 110% were marked as "×".

[0025] The results obtained are shown in Tables 1 and 2.

[0026]

Table 1

[0027]

Table 2

[0028] In Examples 1 to 3, "steartrimonium chloride" was used as the cationic surfactant of component (A), and "polyglyceryl-10 laurate" was used as the polyglycerol fatty acid ester of component (B). The mixing molar ratio of the cationic surfactant of component (A) to the polyglycerol fatty acid ester of component (B) (hereinafter referred to as "mixing molar ratio (A / B)") was 1.0 to 5.0, and the mixing amount of component (B) was 0.9 to 2.7% by mass based on the total mass. As shown in Table 1, Examples 1 to 3 had good usability and lipid permeability.

[0029] Examples 4 to 6 are those in which the component (B), "polyglyceryl-10 laurate" used in Examples 1 to 3, is replaced with "polyglyceryl-10 stearate", the blending molar ratio (A / B) is 1.2 to 4.9, and the blending amount of the component (B) is 1.0 to 2.6% by mass based on the total mass. As shown in Table 1, in Examples 4 to 6, the usability and lipid permeability were good. From the test results of these examples, it was found that even when the type of the polyglycerol fatty acid ester of the component (B) was changed, a composition having good usability and lipid permeability could be obtained as in Examples 1 to 3.

[0030] Examples 7 to 9 are those in which the component (A), "steartrimonium chloride" used in Examples 1 to 3, is replaced with "stearamidopropyldimethylamine", the blending molar ratio (A / B) is 1.1 to 5.1, and the blending amount of the component (B) is 0.9 to 2.4% by mass based on the total mass. As shown in Table 1, in Examples 7 to 9, the usability and lipid permeability were good. From the test results of these examples, it was found that even when the type of the cationic surfactant of the component (A) was changed, a composition having good usability and lipid permeability could be obtained as in Examples 1 to 3.

[0031] Examples 10 to 12 are those in which the component (A), "steartrimonium chloride" used in Examples 1 to 3, is replaced with "stearamidopropyldimethylamine", and the component (B), "polyglyceryl-10 laurate" is replaced with "polyglyceryl-10 stearate", the blending molar ratio (A / B) is 1.1 to 5.1, and the blending amount of the component (B) is 0.8 to 2.5% by mass based on the total mass. As shown in Table 1, in Examples 10 to 12, the usability and lipid permeability were good. From the test results of these examples, it was found that even when the types of the cationic surfactant of the component (A) and the polyglycerol fatty acid ester of the component (B) were changed, a composition having good usability and lipid permeability could be obtained as in Examples 1 to 3.

[0032] The blending amount of component (B) in Example 10 was 0.8% by mass based on the total mass, which was the lowest among Examples 1 to 13. However, the usability and lipid permeability were good. Therefore, it was found that when the blending molar ratio (A / B) was 1.0 to 5.1 and the polyglyceryl fatty acid ester of component (B) was 0.8% or more, a composition with good usability and lipid permeability could be obtained.

[0033] The blending amount of component (B) in Example 3 was 2.7% by mass based on the total mass, which was the highest among Examples 1 to 13. However, the usability and lipid permeability were good. Therefore, it is considered that when the blending molar ratio (A / B) is 1.0 to 5.1 and the polyglyceryl fatty acid ester of component (B) is 4.0% or less, a composition with good usability and lipid permeability can be obtained.

[0034] As shown in Table 2, it was confirmed that in Comparative Examples 1 to 14, at least one of the usability or lipid permeability was poor, and a good composition could not be obtained. From the results of Comparative Examples 1 and 2, it was found that when the cationic surfactant of component (A) was included and the polyglyceryl fatty acid ester of component (B) was not included, the usability was good, but the lipid permeability became poor. Also, from the results of Comparative Examples 3 and 4, when the cationic surfactant of component (A) was not included and "polyglyceryl-10 laurate" and "polyglyceryl-10 stearate" were used as the polyglyceryl fatty acid ester of component (B), the lipid permeability was good, but it was confirmed that the usability became poor.

[0035] In Comparative Example 9, the blending molar ratio (A / B) was 8.0, and the blending amount of component (B) was 0.8% by mass based on the total mass, which was the same as that of component (B) in Example 10. However, the blending molar ratio (A / B) was higher than that in Example 10. From the comparison between Comparative Example 9 and Example 10, it was found that when the blending molar ratio (A / B) was 5.1 or less, a composition with good usability and lipid permeability could be obtained. As shown in Table 2, Comparative Examples 5, 7, and 11 with a compounding molar ratio (A / B) of 8.0 to 8.3, like Comparative Example 9, had poor lipid permeability and no good composition could be obtained.

[0036] In Comparative Examples 6, 8, 10, and 12, the compounding molar ratio (A / B) was 0.5, and the compounding amount of component (B) was 3.2 to 3.5% by mass based on the total mass. From the comparison between Comparative Examples 6, 8, 10, and 12 and Example 3 with a compounding molar ratio (A / B) of 1.0, it was found that when the compounding molar ratio (A / B) was 1.0 or more, a composition with good usability and lipid permeability could be obtained.

[0037] From the comparison between Example 13 and Example 4, Comparative Example 13 and Comparative Example 1, and Comparative Example 14 and Comparative Example 4, the evaluation results of usability and lipid permeability when using "cholesterol" instead of "Nile red" as component (C) were the same as those when using "Nile red". Therefore, in Examples 1 to 12, it is considered that even if "cholesterol" is used instead of "Nile red" as component (C), a composition with good usability and lipid permeability can be obtained.

[0038] The following are formulation examples showing hair cosmetics for rinsing use. When these hair cosmetics were actually used on the hair, it was confirmed that the usability was good and the gloss and firmness of the hair were improved after use. Formulation Example 1: Treatment Display Name Mass % Behentrimonium Chloride 3.80 Polyglyceryl-10 Stearate 1.80 Hydrogenated Rapeseed Oil Alcohol 6.50 DPG 10.00 Isotridecyl Isononanoate 6.50 Dimethicone 3.50 Cholesterol 0.10 Di(isostearyl / phytosteryl) Dimer dilinoleate 0.50 Lactic Acid 0.05 Sodium Lactate 0.25 Purified Water Balance Formulation Example 2: Shampoo Display Name Mass % BG 5.00 Sodium cocoamphoacetate 5.00 Cocamidopropyl betaine 3.00 Sodium lauroyl methylalanine 3.00 Potassium cocooyl glutamate 3.00 Ceteareth-60 myristyl glycol 2.00 Sodium lauroyl glutamate 1.00 Pentylene glycol 1.00 DPG 1.00 Sodium cocoyl methyl taurine 1.00 Behentrimonium chloride 1.00 Polyglyceryl-10 laurate 1.50 Guar hydroxypropyltrimonium chloride 0.30 PEG-120 methyl glucose triisostearate 1.00 Phytosterols 0.01 Citric acid 0.30 Sodium citrate 0.10 Purified water Remainder Formulation Example 3: Hair Water Display Name Mass % Pentylene glycol 3.00 Sorbitol 2.00 BG 8.00 Glycerin 3.00 Polyglyceryl-10 laurate 1.50 Behenamidopropyldimethylamine 1.50 Ethylhexylglycerin 0.07 Sodium lactate 0.05 Lactic acid 0.05 Phytosteryl macadamia nut fatty acids 0.01 Purified water Remainder

Industrial Applicability

[0039] The lipid penetration promoting composition for hair according to the present invention, and the hair cosmetic using the same, have good usability and are excellent in quickly penetrating lipids that are lost due to daily damage such as shampooing and aging into the hair, so that beautiful hair with luster and firmness can be maintained.

Claims

1. (A) a cationic surfactant; (B) a polyglycerol fatty acid ester; (C) one or more lipids selected from the group consisting of sterols or their derivatives, sphingolipids, and lipophilic dyes; A lipid penetration promoting composition for hair, comprising: The mixing molar ratio (A / B) of the (A) cationic surfactant to the (B) polyglycerol fatty acid ester is 1.0 to 5.1; The amount of the (B) polyglycerol fatty acid ester is 0.8 to 4.0% by mass based on the total mass of the lipid penetration promoting composition. A lipid penetration promoting composition for hair.

2. The lipid penetration promoting composition for hair according to Claim 1, wherein the HLB of the (B) polyglycerol fatty acid ester is 10 to 16.

3. The lipid penetration promoting composition for hair according to Claim 1 or 2, wherein the fatty acid constituting the (B) polyglycerol fatty acid ester is a linear saturated fatty acid.

4. A hair cosmetic used by rinsing, comprising the lipid penetration promoting composition for hair according to Claim 1 or 2.

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