Oil-based hair cosmetic

Abstract

To provide oil-based hair cosmetics that impart a silky feel, softness, and hair orderliness, with a pleasant application feel and spreadability.SOLUTION: Oil-based hair cosmetics contain (A) methylpolysiloxane with a kinematic viscosity of 100,000-1,000,000 mm2 / s at 25°C, (B) at least one selected from dimethicone / vinyl dimethicone crosspolymer, dimethicone / phenyl vinyl dimethicone crosspolymer or dimethicone crosspolymer, (C) ester oil that is liquid at 25°C, and (D) phospholipids. The content of component (A) is 2-30 mass%. The oil-based hair cosmetics provded herein impart a silky feel, softness, and hair orderliness, with a pleasant application feel and spreadability.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to an oily hair cosmetic, and more particularly to an oily hair cosmetic that provides a smooth feel, softness, and manageability, and has good application feel and spreadability. [Background technology]

[0002] In recent years, consumers have been experiencing various hair problems due to the cumulative damage caused by coloring and perming treatments, such as poor manageability, dryness, and a rough texture. To address these issues, consumers are using various hair cosmetics such as hair oils, hair creams, and hair milks. Among these hair cosmetics, hair oils are in demand because they provide moderate manageability and a pleasant texture. Furthermore, with the recent trend towards soft, natural-looking hairstyles, there is a demand for the development of hair oils that can create these hairstyles.

[0003] Traditionally, hair oils have contained oily components such as silicone oils, ester oils, hydrocarbon oils, and vegetable oils to provide manageability and a pleasant texture. Among these oily components, methylpolysiloxane and dimethiconol, which have a high degree of polymerization, are widely used because they provide excellent manageability, a smooth feel, and a good application. However, a challenge with methylpolysiloxane and dimethiconol, which have a high degree of polymerization, is that increasing their concentration makes them difficult to spread when applied.

[0004] To address these challenges, Patent Document 1 discloses a leave-in oily hair cosmetic that contains (dimethicone / vinyl dimethicone) crosspolymer, dimethiconol, and methylpolysiloxane, and does not contain cyclic silicones, which can improve the smoothness, application feel, and spreadability of the hair. [Prior art documents] [Patent Documents]

[0005] [Patent Document 1] Japanese Patent Publication No. 2020-40915 [Overview of the project] [Problems that the invention aims to solve]

[0006] However, while Patent Document 1 examines the smoothness, application feel, and spreadability, it does not examine softness or cohesiveness. [Means for solving the problem]

[0007] As a result of diligent research, the inventors have found that (A) the kinematic viscosity at 25°C is 100,000 to 1,000,000 mm². 2 The present invention was completed by providing an oily hair cosmetic containing (B) methylpolysiloxane (A) / s, (B) one or more selected from (dimethicone / vinyl dimethicone) crosspolymer, (dimethicone / phenylvinyl dimethicone) crosspolymer, or dimethicone crosspolymer, (C) an ester oil that is liquid at 25°C, and (D) a phospholipid, wherein the content of component (A) is 2 to 30% by mass. [Effects of the Invention]

[0008] The present invention provides an oily hair cosmetic that imparts a smooth feel, softness, and manageability, and has good application feel and spreadability. [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] In this invention, "application sensation" refers to the feeling of presence of the oily hair cosmetic on the hair when spreading the oily hair cosmetic onto the hair. If this application sensation is weak, the user will not feel that they are using an oily hair cosmetic, and will not be satisfied.

[0011] The present invention, from the viewpoint of smoothness, cohesiveness, and application feel, (A) has a kinematic viscosity of 100,000 to 1,000,000 mm at 25°C. 2 It contains methylpolysiloxane, which is / s.

[0012] The content of component (A) used in the present invention is preferably 2-30%, more preferably 5-25%, and more preferably 10-20%. If the content of component (A) is less than 2%, a smooth feel and ease of application will not be obtained, and the material will not hold together well. If the content of component (A) exceeds 30%, the material will not be soft and will not spread well.

[0013] The present invention contains one or more selected from (B) (dimethicone / vinyl dimethicone) crosspolymer, (dimethicone / phenyl vinyl dimethicone) crosspolymer, or dimethicone crosspolymer, from the viewpoint of application feel and spreadability.

[0014] The component (B) used in the present invention is commercially available, and commercially available silicone polymers can be used. Commercially available silicone polymers may be used as the silicone polymer itself, or they may be dispersed or dissolved in a dispersion medium such as silicone oil or hydrocarbon oil beforehand.

[0015] The (dimethicone / vinyl dimethicone) copolymer used in the present invention is not particularly limited. For example, DOWSIL 3901 Liquid Satin Blend (manufactured by Dow Corning Toray Co., Ltd.), KSG-15 (manufactured by Shin-Etsu Chemical Co., Ltd.), KSG-1510 (manufactured by Shin-Etsu Chemical Co., Ltd.), KSG-16 (manufactured by Shin-Etsu Chemical Co., Ltd.), KSG-1610 (manufactured by Shin-Etsu Chemical Co., Ltd.), KSG-19 (manufactured by Shin-Etsu Chemical Co., Ltd.), KSG-016F (manufactured by Shin-Etsu Chemical Co., Ltd.), SFE839 (manufactured by Momentive Performance Materials Inc.), DOWSIL 9546 Silicone Elastomer Blend (manufactured by Dow Corning Toray Co., Ltd.), DOWSIL 9576 Smooth Away Elastomer (manufactured by Dow Corning Toray Co., Ltd.), etc. can be mentioned.

[0016] The (dimethicone / phenyl vinyl dimethicone) copolymer used in the present invention is not particularly limited. For example, KSG-18A (manufactured by Shin-Etsu Chemical Co., Ltd.), etc. can be mentioned.

[0017] The dimethicone copolymer used in the present invention is not particularly limited. For example, DOWSIL EL9240 Silicone Elastomer Blend (manufactured by Dow Corning Toray Co., Ltd.), DOWSIL 9040 Silicone Elastomer Blend (manufactured by Dow Corning Toray Co., Ltd.), DOWSIL 9041 Silicone Elastomer Blend (manufactured by Dow Corning Toray Co., Ltd.), DOWSIL 9045 Silicone Elastomer Blend (manufactured by Dow Corning Toray Co., Ltd.), etc. can be mentioned.

[0018] Among the component (B) used in the present invention, from the viewpoint of improving the coating feeling, the (dimethicone / vinyl dimethicone) copolymer is preferable.

[0019] The content of the component (B) used in the present invention is not particularly limited, but is preferably 0.001 to 1%, more preferably 0.005 to 0.5%, and still more preferably 0.01 to 0.3%. When the component (B) is less than 0.001%, there is a risk that the coating feeling cannot be obtained or the elongation may deteriorate. When the component (B) exceeds 1%, there is a risk that a smooth feeling cannot be obtained or the elongation may deteriorate.

[0020] From the viewpoints of smoothness and softness, the present invention contains (C) an ester oil that is liquid at 25°C.

[0021] The component (C) used in the present invention is not particularly limited. For example, isopropyl myristate, 2-ethylhexyl palmitate, di-2-ethylhexyl succinate, glyceryl tri(caprylate / caprate), octyldodecyl myristate, glyceryl tri-2-ethylhexanoate, cetyl ethylhexanoate, isopropyl isostearate, cetyl isooctanoate, isononyl isononanoate, isodecyl isononanoate, isotridecyl isononanoate, hexyl laurate, oleyl oleate, decyl oleate, octyldodecyl oleate, octyldodecyl lactate, diisostearyl malate, isostearyl pivalate, 2-ethylhexyl hydroxystearate, neopentyl glycol dicaprate, trimethylolpropane triisostearate, etc. may be mentioned, and one or more of these can be contained.

[0022] Among the component (C) used in the present invention, from the viewpoints of improving smoothness and softness, isopropyl myristate, 2-ethylhexyl palmitate, di-2-ethylhexyl succinate, glyceryl tri(caprylate / caprate) or octyldodecyl myristate is preferable, and among them, isopropyl myristate and 2-ethylhexyl palmitate are more preferable.

[0023] The content of component (C) used in the present invention is not particularly limited, but is preferably 0.5 to 15%, more preferably 1 to 10%, and even more preferably 3 to 8%. If the content of component (C) is less than 0.5%, there is a risk that a smooth feeling will not be obtained or that the softness will be poor. If the content of component (C) exceeds 15%, there is a risk that a smooth feeling will not be obtained or that the spreadability will be poor.

[0024] The present invention contains (D) phospholipids from the viewpoint of softness and cohesiveness.

[0025] The component (D) used in the present invention is a complex lipid containing a phosphate residue, and examples include natural phospholipids, synthetic phospholipids, and hydrogenated phospholipids obtained by saturating the unsaturated carbon chain of naturally derived phospholipids with hydrogen. Specific phospholipids are not particularly limited, but examples include natural phospholipids such as soy lecithin, egg yolk lecithin, phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, phosphatidylinositol, lysophosphatidylcholine, and sphingomyelin; synthetic phospholipids such as dilauroyl phosphatidylcholine, dimyristoyl phosphatidylcholine, dipalmitoyl phosphatidylcholine, distearoyl phosphatidylcholine, dioleoyl phosphatidylcholine, and palmitoyl oleoyl phosphatidylcholine; and hydrogenated phospholipids such as hydrogenated soy lecithin, hydrogenated egg yolk lecithin, hydrogenated phosphatidylcholine, and hydrogenated phosphatidylserine. One or more of these may be included.

[0026] Of the components (D) used in the present invention, soy lecithin and hydrogenated soy lecithin are preferred from the viewpoint of improving softness and cohesiveness, and soy lecithin is more preferred among them.

[0027] The content of component (D) used in the present invention is not particularly limited, but is preferably 0.00001 to 1%, more preferably 0.00005 to 0.1%, and even more preferably 0.0001 to 0.01%. If the content of component (D) is less than 0.00001%, the softness and manageability may be poor. If the content of component (D) exceeds 1%, the smooth feeling may not be obtained, and the spreadability may be poor.

[0028] The oily hair cosmetic composition of the present invention may contain oily components other than component (A), component (B), component (C), and component (D) to the extent that they do not impair the effect.

[0029] The oily components other than components (A), (B), (C), and (D) used in the present invention are not particularly limited, but include, for example, methylpolysiloxane, dimethiconol, methylphenylpolysiloxane, aminopropyl dimethicone, aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer, polyoxyethylene-methylpolysiloxane copolymer, polyglyceryl-3 disiloxane dimethicone, polyglyceryl-3 polydimethylsiloxyethyl dimethicone, laurylpolyglyceryl-3 polydimethylsiloxyethyl dimethicone, stearoxymethylpolysiloxane, decamethyltetrasiloxane, decameth Examples include lucyclopentasiloxane, α-olefin oligomer, liquid paraffin, light isoparaffin, light liquid isoparaffin, liquid isoparaffin, heavy liquid isoparaffin, isododecane, dodecane, squalane, squalene, olive oil, rice bran oil, macadamia nut oil, macadamia oil, avocado oil, safflower oil, jojoba oil, soybean oil, sunflower seed oil, grape seed oil, corn oil, rapeseed oil, lemon oil, orange oil, tea seed oil, camellia oil, peanut oil, argan oil, shea butter oil, almond oil, castor oil, coconut oil, palm oil, sesame oil, sunflower oil, peach kernel oil, wheat germ oil, evening primrose oil, rosehip oil, etc., and one or more of these may be included.

[0030] Among the oily components other than component (A), component (B), component (C), and component (D) used in the present invention, low polymerization methylpolysiloxane is preferred, and among them, a kinematic viscosity at 25°C of 2 to 5 mm is preferred. 2 Methylpolysiloxane, which is / s, is more preferred.

[0031] In addition to the essential components mentioned above, the oily hair cosmetic composition of the present invention may contain at least one of various components commonly used in cosmetics, quasi-drugs, pharmaceuticals, etc., such as polymers, humectants, surfactants, chelating agents, protein derivatives, hydrolyzed proteins, stabilizers, antioxidants, plant extracts, vitamins, preservatives, dyes, pigments, powders, UV absorbers, fragrances, etc., to the extent that it does not impair the effects. However, it is not limited to these examples.

[0032] The oily hair cosmetic composition in the present invention has an oily component as its continuous phase and is substantially water-free. "Substantially water-free" means that the water content is preferably less than 3%, more preferably less than 1%.

[0033] The viscosity of the oily hair cosmetic composition in the present invention is preferably 10 to 1,000 mPa·s at 20°C.

[0034] The viscosity of the oily 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 oily hair cosmetic composition prepared by a conventional method, allowing it to stand at 20°C for 1 day to adjust 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. 2 rotor for 1 minute at a rotation speed of 30 rpm.

[0035] The oily hair cosmetic composition of the present invention can be used by filling it into containers such as pump-type containers, one-touch cap-type containers, dropper-equipped containers, and aerosol containers. [Examples]

[0036] 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.

[0037] In the evaluation tests described herein, the components and their contents in the oily hair cosmetic were varied and tested. All units indicating the content of each component are in mass%, and these were prepared by conventional methods.

[0038] In the evaluation test methods described herein, "smoothness," "softness," "cohesion," "applicability," and "spreadability" were evaluated using the following methods.

[0039] "Smooth and silky feel" Regarding the oily hair cosmetic obtained in the examples and comparative examples, a smoothness evaluation test was conducted by 15 expert panelists. In the evaluation test, 0.5g of the oily hair cosmetic obtained in the examples and comparative examples, which had been heated to 20°C, was uniformly applied to the entire hair under conditions of room temperature (20°C) and humidity (60%), and the smoothness was evaluated by sensory perception after application. <Evaluation Criteria> 5: More than 13 out of 15 people felt that it had a smooth, silky texture. 4. Of the 15 people surveyed, between 10 and 12 felt that it had a smooth, dry texture. 3. Of the 15 people surveyed, 7 to 9 felt that it had a smooth, silky texture. 2. Of the 15 people surveyed, 4 to 6 felt that it had a smooth, dry texture. 1: Out of 15 people, 3 or fewer felt that it had a smooth, dry texture.

[0040] "Softness" The oily hair cosmetic obtained in the examples and comparative examples was evaluated for softness by 15 expert panelists. In the evaluation test, 0.5g of the oily hair cosmetic obtained in the examples and comparative examples, which had been heated to 20°C, was uniformly applied to the entire hair under conditions of room temperature (20°C) and humidity (60%), and the softness was evaluated by sensory perception after application. <Evaluation Criteria> 5: More than 13 out of 15 people felt it was soft. 4. Between 10 and 12 out of 15 people felt it was soft. 3. Of the 15 people surveyed, 7 to 9 felt that it was soft. 2: Of the 15 people surveyed, 4 to 6 felt it was soft. 1: Out of 15 people, 3 or fewer felt it was soft.

[0041] "Cohesion" Fifteen expert panelists conducted a cohesiveness evaluation test on the oily hair cosmetic obtained in the examples and comparative examples. In the evaluation test, 0.5g of the oily hair cosmetic obtained in the examples and comparative examples, which had been heated to 20°C, was uniformly applied to the entire hair under conditions of room temperature (20°C) and humidity (60%), and the cohesiveness was evaluated by sensory perception after application. <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.

[0042] "Feel of application" An evaluation test of the application feel was conducted on the oily hair cosmetic obtained in the examples and comparative examples by 15 expert panelists. In the evaluation test, 0.5g of the oily hair cosmetic obtained in the examples and comparative examples, which had been heated to 20°C, was uniformly applied to the entire hair under conditions of room temperature (20°C) and humidity (60%), and the application feel was evaluated by sensory perception. <Evaluation Criteria> 5. More than 13 out of 15 people felt that it was a sticky, gritty texture. 4. Of the 15 people surveyed, between 10 and 12 felt that the product had a noticeable texture. 3. Of the 15 people surveyed, 7 to 9 felt that the product had a noticeable texture. 2. Of the 15 people surveyed, 4 to 6 felt that the product had a noticeable texture. 1:3 out of 15 people felt that it was a noticeable sensation when applied.

[0043] "Excellent stretchability" Fifteen expert panelists conducted an evaluation test on the spreadability of the oily hair cosmetic obtained in the examples and comparative examples. In the evaluation test, 0.5g of the oily hair cosmetic obtained in the examples and comparative examples, which had been heated to 20°C, was uniformly applied to the entire hair under conditions of room temperature (20°C) and humidity (60%), and the spreadability was evaluated by sensory perception. <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.

[0044] [Table 1]

[0045] [Table 2]

[0046] [Table 3]

[0047] [Table 4]

[0048] Examples 1 to 33, shown in Tables 1 to 4, yielded favorable results regarding smoothness, softness, manageability, application feel, and spreadability.

[0049] Examples 34-36 of the oil-based hair cosmetic are described below.

[0050] The oily hair cosmetic obtained in Examples 34-36 showed good results in terms of smoothness, softness, manageability, ease of application, and spreadability.

[0051] <Example 34> Component content (mass%) (A) Methyl polysiloxane (1,000,000 mm 2 / s)※1 10.000 (A) Methyl polysiloxane (100,000 mm 2 / s)※2 5.000 (B) (Dimethicone / Vinyldimethicone) Copolymer※3 0.050 (C) Isopropyl myristate※4 4.800 (C) Tri (caprylic / capric acid) glyceryl※10 0.010 (D) Soybean lecithin※5 0.001 Dimethiconol 2.000 γ-Docosanolactone 0.001 Argania spinosa kernel oil 0.001 Polyoxyethylene alkyl (12~14) ether (3 E.O.) 0.010 Dihydroxypropyl arginine HCl 0.001 Wasabino ki seed extract 0.001 Pentylene glycol 0.001<\ Fragrance 1.400 Methyl polysiloxane (2 mm 2 / s) 40.000 Methyl polysiloxane (5 mm 2 / s) 36.723 Purified water 0.001 Total 100.000

[0052] <Example 35> Component content (mass%) (A) Methyl polysiloxane (1,000,000 mm 2 / s)※1 10.000 (A) Methyl polysiloxane (100,000 mm 2 / s)※2 5.000 (B) (Dimethicone / Vinyldimethicone) Copolymer※3 0.050 (C) Isopropyl myristate*4 4.800 (C) Tri(caprylic / capric acid) glyceryl *10 0.010 (D) Soy lecithin*5 0.001 Dimethiconol 2,000 γ-docosalactone 0.001 Argania spinosa kernel oil 0.001 Polyoxyethylene alkyl (12-14) ether (3E.O.) 0.010 Dihydroxypropylarginine HCl 0.001 Moringa seed extract 0.001 Pentylene glycol 0.001 Fragrance 1.400 Methylpolysiloxane (2mm 2 / s) 10.000 Methylpolysiloxane (5mm 2 / s) 66.723 Purified water 0.001 Total 100,000

[0053] <Example 36> Component Content (mass%) (A) Methylpolysiloxane (1,000,000 mm 2 / s) *1 10,000 (A) Methylpolysiloxane (100,000 mm 2 / s) *2 5.000 (B)(Dimethicone / Vinyl Dimethicone) Crosspolymer*3 0.050 (C) Isopropyl myristate*4 4.800 (C) Tri(caprylic / capric acid) glyceryl *10 0.010 (D) Soy lecithin*5 0.001 Dimethiconol 2,000 γ-docosalactone 0.001 Argania spinosa kernel oil 0.001 Polyoxyethylene alkyl (12-14) ether (3E.O.) 0.010 Dihydroxypropylarginine HCl 0.001 Moringa seed extract 0.001 Pentylene glycol 0.001 Fragrance 1.400 Methylpolysiloxane (2mm 2 / s) 65.000 Methylpolysiloxane (5mm 2 / s) 11.723 Purified water 0.001 Total 100,000

[0054] The commercially available raw materials for component (A)*1, component (A)*2, component (B)*3, component (C)*4, component (C)*10, and component (D)*5 used in Examples 34 to 36 are shown below. *1: KF-96H-1,000,000 CS (manufactured by Shin-Etsu Chemical Co., Ltd.) *2: KF-96H-100,000 CS (manufactured by Shin-Etsu Chemical Co., Ltd.) *3: DOWSIL 3901 Liquid Satin Blend (manufactured by Dow-Toray Corporation) *4: IPM-R (manufactured by Higher Alcohol Industry Co., Ltd.) *5: PHYTEXT (manufactured by LUCASMEYER COSMETICS) *10: ODO (manufactured by Nisshin Oillio Group Ltd.) [Industrial applicability]

[0055] The present invention provides an oily hair cosmetic that imparts a smooth feel, softness, and manageability, and has good application feel and spreadability.

Claims

[Claim 1] (A) Kinematic viscosity at 25°C is 100,000 to 1,000,000 mm² ２ / s methylpolysiloxane (B) One or more selected from (dimethicone / vinyl dimethicone) crosspolymer, (dimethicone / phenyl vinyl dimethicone) crosspolymer, or dimethicone crosspolymer. (C) One or more selected from isopropyl myristate, 2-ethylhexyl palmitate, di-2-ethylhexyl succinate, caprylic / capric triglyceride, or octyldodecyl myristate. (D) Phospholipids An oily hair cosmetic comprising the following, wherein the content of component (A) is 5 to 25% by mass, the content of component (B) is 0.005 to 0.5% by mass, the content of component (C) is 1 to 10% by mass, and the content of component (D) is 0.00005 to 0.1% by mass.

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