Hair cosmetics

Abstract

This invention provides a hair cosmetic containing plant-derived volatile hydrocarbons that achieves both quick drying properties and smoothness of the hair during application and after drying. [Solution] A hair cosmetic comprising a volatile hydrocarbon having 100% natural origin and 12 to 14 carbon atoms as an oily component, wherein the volatile hydrocarbon includes linear volatile hydrocarbons and branched volatile hydrocarbons, and the content of branched volatile hydrocarbons relative to the total volatile hydrocarbons is 5% by mass or more and 70% by mass or less.

Description

Technical Field

[0001] The present invention relates to hair cosmetics.

Background Art

[0002] Among hair cosmetics, hair oils that do not contain water are composed of volatile oily components, non-volatile oily components, hair conditioning components, and the like.

[0003] The volatile oily component plays a role in reducing stickiness during application to hair and after drying, promoting the formation of a uniform film on the hair surface, imparting quick-drying properties in situations where heat is applied to the hair using a dryer or hair iron, etc., and reducing damage to the hair caused by heat. It is often formulated in a large amount in hair oil in the range of 30% to 90% by mass.

[0004] Cyclic silicones such as cyclopentasiloxane have generally been used as the volatile oily component. However, in recent years, due to the regulation of cyclic silicones in Europe, voluntary regulation by cosmetic manufacturers has been progressing in countries other than Europe, and their use is gradually decreasing. As an alternative, volatile branched hydrocarbon oils such as isododecane and hydrogenated polyisobutene have been proposed. For example, in Patent Document 1, a quick-drying hair oil with a high content of hydrogenated polyisobutene has been studied. Also, for example, in Patent Document 2, a hair oil with a high content of dodecane, which is a volatile linear hydrocarbon oil, has been studied.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, the hair oil containing a high concentration of volatile branched hydrocarbon oil described in Patent Document 1, while excellent in terms of quick drying and non-greasy properties, suffers from the problem of causing hair to feel stiff during application and after drying. Furthermore, the hair oil described in Patent Document 2 suffers from the problem of being less quick-drying compared to branched hydrocarbon oil.

[0007] On the other hand, in recent years, there has been a growing demand in the cosmetics market for products containing naturally derived, particularly plant-derived, ingredients. Volatile branched hydrocarbon oils used as oily components are mainly petroleum-derived, and products using plant-derived volatile branched hydrocarbon oils are not currently available on the market.

[0008] Therefore, the present invention aims to provide a hair cosmetic that contains plant-derived volatile hydrocarbons and achieves both quick drying properties and smoothness of the hair during application and after drying. [Means for solving the problem]

[0009] As a result of diligent research, the inventors of the present invention have found that all of the above-mentioned problems can be solved by including a volatile hydrocarbon as an oily component that is 100% naturally derived and has 12 to 14 carbon atoms, and by including a specific content of both linear and branched volatile hydrocarbons in the present invention.

[0010] In other words, the present invention is a hair cosmetic composition that contains a volatile hydrocarbon as an oily component, which is 100% naturally derived and has 12 to 14 carbon atoms, wherein the volatile hydrocarbon comprises a linear structure and a branched structure, and the content of the branched structure relative to the total volatile hydrocarbon is 5% by mass or more and 70% by mass or less.

[0011] In the hair cosmetic composition of the present invention, the oily component preferably includes an ester oil. Furthermore, it is preferable that the ester oil is at least one selected from the group consisting of caprylyl caprylate, methylheptyl laurate, cetyl caprylate, and dicaprylyl maleate. Furthermore, the hair cosmetic composition of the present invention preferably contains a hair conditioning component. It is also preferable that the content of the above-mentioned volatile hydrocarbon is 30% by mass or more and 90% by mass or less of the total mass of the hair cosmetic composition of the present invention. [Effects of the Invention]

[0012] The present invention provides a hair cosmetic containing plant-derived volatile hydrocarbons that achieves both quick drying properties and smoothness of the hair during application and after drying. [Modes for carrying out the invention]

[0013] The hair cosmetic composition of the present invention contains a volatile hydrocarbon as an oily component, which is 100% naturally derived and has 12 to 14 carbon atoms. The volatile hydrocarbon includes both linear and branched volatile hydrocarbons, and the content of the branched volatile hydrocarbon relative to the total amount of volatile hydrocarbons with 12 to 14 carbon atoms is 5% by mass or more and 70% by mass or less. The components of the hair cosmetic composition of the present invention will be described in detail below.

[0014] <Oily components> (Volatile hydrocarbons) The hair cosmetic composition of the present invention contains a volatile hydrocarbon as an oily component, which is 100% naturally derived and has 12 to 14 carbon atoms. In this specification, "oily component" means a fatty compound or fatty substance that is in liquid or paste-like (non-solid) form at atmospheric pressure (101.3 kPa) and room temperature (25°C). The above-mentioned oily components can be oily components commonly used in hair cosmetic compositions. Examples include volatile hydrocarbons with 12 to 14 carbon atoms, as well as ester oils, animal and vegetable oils, hydrocarbon oils, silicone oils, higher fatty acids, and higher alcohols, which will be discussed later.

[0015] In this specification, the natural origin index is a value calculated in accordance with ISO 16128, and indicates the proportion of natural raw materials derived from plants, animals, microorganisms such as algae, bacteria, and fungi, and minerals. Since the above volatile hydrocarbons have a natural origin index of 100%, all raw materials are derived from natural raw materials.

[0016] The above volatile hydrocarbons include linear volatile hydrocarbons and volatile hydrocarbons having a branched structure.

[0017] Examples of the linear volatile hydrocarbons include dodecane, tridecane, tetradecane, etc. Examples of the volatile hydrocarbons having a branched structure include isododecane, isotridecane, isotetradecane, etc.

[0018] The content of the volatile hydrocarbons having a branched structure with respect to the total volatile hydrocarbons having 12 to 14 carbon atoms is 5% by mass or more and 70% by mass or less. By satisfying the above content, a hair cosmetic that can achieve both quick drying and smoothness of hair during and after application to hair can be obtained. The content is preferably 6% by mass or more, more preferably 7% by mass or more. Also, the content is preferably 68% by mass or less, more preferably 66% by mass or less.

[0019] The content of the above volatile hydrocarbons is preferably 30% by mass or more and 90% by mass or less with respect to the total mass of the hair cosmetic of the present invention.

[0020] (Method for producing volatile hydrocarbons) The above volatile hydrocarbons can be obtained, for example, by reacting an alcohol having 12 to 14 carbon atoms with hydrogen in the presence of a zeolite catalyst and a noble metal of Groups 8 to 10 of the periodic table.

[0021] The above zeolite catalyst is preferably of the H-beta type or H-ZSM-5 type, and more preferably of the H-beta type or H-ZSM-5 type with a molar ratio of silica (SiO2) to alumina (Al2O3) (SiO2 / Al2O3) of 20 to 35. Furthermore, H-beta type means that the crystal structure is beta type (BEA type) and the cations constituting the zeolite are hydrogen, and ZSM-5 type (MFI type) means that the crystal structure is ZSM-5 type (MFI type) and the cations constituting the zeolite are hydrogen.

[0022] The noble metals in groups 8 to 10 of the periodic table are preferably at least one selected from the group consisting of palladium, ruthenium, platinum, and rhodium.

[0023] Examples of naturally occurring alcohols with 12 to 14 carbon atoms include 1-dodecanol, 1-tridecanol, and 1-tetradecanol.

[0024] The reaction temperature is preferably 160°C or higher, and the hydrogen pressure is preferably 3 MPa or less in gauge pressure.

[0025] (Ester oil) From the viewpoint of providing a suitable smoothness to the hair after application and drying, the above oily component preferably includes an ester oil.

[0026] The ester oil described above is a liquid or paste-like ester of a saturated or unsaturated linear or branched aliphatic monocarboxylic acid or polycarboxylic acid having 2 to 24 carbon atoms and a saturated or unsaturated linear or branched aliphatic monoalcohol or polyalcohol having 1 to 24 carbon atoms, and it is preferable that the total number of carbon atoms of these esters is 10 or more and 80 or less. Specific examples include ethylhexyl palmitate, ethyl palmitate, isopropyl palmitate, ethyl myristate, isopropyl myristate, isononyl isononanoate, ethylhexyl isononanoate, cetyl ethylhexanoate, isodecyl neopentanoate, isostearyl neopentanoate, (caprylic / capric acid) coconut alkyl, (caprylic / capric acid) caprylyl, (caprylic / capric acid) ethylhexyl, caprylyl caprylate, isopropyl laurate, hexyl laurate, isoamyl laurate, methylheptyl laurate, cetyl caprylate, isopropyl isostearate, and oleate. Examples include ethylhexyl oleate, dicaprylyl carbonate, diethyl sebacate, isopropyl lauroyl sarcosinate, diisopropyl sebacate, diethylhexyl sebacate, diisopropyl adipate, diethylhexyl adipate, diethylhexyl maleate, dicaprylyl maleate, diethylhexyl succinate, diisostearyl malate, dioctyldodecyl malate, caprylic / capric triglyceride, triethylhexanoin, triheptanoin, pentaerythrityl tetraethylhexanoate, pentaerythrityl tetraisononanoate, and pentaerythrityl tetraisostearate.

[0027] From the viewpoint of more favorably imparting smoothness to the hair after application and drying, the ester oil is preferably at least one selected from the group consisting of caprylyl caprylate, methylheptyl laurate, cetyl caprylate, and dicaprylyl maleate.

[0028] (animal and vegetable oil) Examples of animal and vegetable oils include olive oil, jojoba oil, castor oil, almond oil, macadamia nut oil, corn germ oil, rice bran oil, mink oil, avocado oil, sunflower oil, sesame oil, soybean oil, rapeseed oil, safflower oil, camellia oil, meadowfoam oil, argania spinosa kernel oil, kukui nut oil, rosehip oil, lanolin, hydrogenated lanolin, liquid lanolin, beeswax, horse oil, and shea butter.

[0029] (Hydrogen oil) Examples of hydrocarbon oils include volatile hydrocarbon oils, as well as liquid paraffin, squalane, hydrogenated polyisobutene, and petrolatum.

[0030] (Silicone oil) Examples of silicone oils include low-polymerization dimethicone and cyclic silicones.

[0031] (higher fatty acids) Examples of higher fatty acids include isostearic acid and oleic acid.

[0032] (High-grade alcohol) Examples of higher alcohols include hexyldecanol, octyldodecanol, decyltetradecanol, oleyl alcohol, and isostearyl alcohol.

[0033] The hair cosmetic composition of the present invention preferably contains a hair conditioning ingredient. In this specification, "hair conditioning ingredient" means an ingredient used to improve the appearance, feel, smoothness (ease of combing), thickness, moisture, light reflection (shine), elasticity (firmness and body), and manageability of the hair.

[0034] (Hair conditioning ingredients) Hair conditioning ingredients include dimer dilinoleyl dimer dilinoleate, PEG-3 caprylyl ether, inulin, γ-docosalactone, meadowfoam-δ-lactone, phytosteryl oleate, phytosteryl isostearate, phytosteryl rice bran oil fatty acid, phytosteryl sunflower seed oil fatty acid, phytosteryl macadamia nut fatty acid, sodium dilauroyl glutamate lysine, di(cholesteryl / octyldodecyl) lauroyl glutamate, di(cholesteryl / behenyl / octyldodecyl) lauroyl glutamate. Dilauroyl glutamate di(octyldodecyl / phytosteryl / behenyl), dilauroyl glutamate di(phytosteryl / octyldodecyl), lanolin fatty acid, PPG-1 / PEG-1 stearamine, behenamidopropyl dimethylamine, stearamidopropyl dimethylamine, hydroxypropyltrimonium hyaluronate, hydroxypropyl guar hydroxypropyltrimonium, guar hydroxypropyltrimonium chloride, chloride hydroxypropyltrimonium starch, steartrimonium bromide, dialkyl( C12-18) Dimonium chloride, behenyl PG-trimonium chloride, behentrimonium methosulfate, behentrimonium methosulfate, distearyldimonium chloride, cetrimonium chloride, behentrimonium chloride, steartrimonium chloride, polyquaternium-4, polyquaternium-6, polyquaternium-7, polyquaternium-10, polyquaternium-11, polyquaternium-22, polyquaternium-51, polyquaternium-52, polyquaternium-61, polyquaternium-64, polyqua Quaternium-67, Polyquaternium-92, Dipentaerythrityl Tripolyhydroxystearate, Hexa-fatty Acid (C5-9) Dipentaerythrityl Esters, Sucrose Laurate, Panthenol, Calcium Pantothenate, Ascorbyl Tetraisopalmitate, Polysilicone-13, PEG-10 Methyl Ether Dimethicone, PEG-11 Methyl Ether Dimethicone, Dimethicone, Dimethiconol, Cross-linked Organopolysiloxane, Fluorine-modified Polysiloxane, Amino-modified Polysiloxane, Methylphenylpolysiloxane, Methyl Trimethicone,Examples include caprylyl methicone, caprylyl trimethicone, sericin, hydrolyzed silk, hydrolyzed keratin, hydrolyzed conchiolin, hydrolyzed collagen, isostearoyl hydrolyzed silk, isostearoyl hydrolyzed keratin, isostearoyl hydrolyzed collagen, cyclohexane-1,4-dicarboxylic acid bisethoxydiglycol, histidine HCl, histidine, arginine, sodium glutamate, glutamic acid, aspartic acid, glutamine, proline, tyrosine, phenylalanine, threonine, serine, isoleucine, leucine, valine, alanine, glycine, dihydroxypropylarginine HCl, ceramide AG, ceramide AP, ceramide AS, ceramide EOP, ceramide EOS, ceramide NG, ceramide NP, ceramide NS, phytosteryl glucoside / glucosylceramide, sphingoglycolipids, etc.

[0035] From the viewpoint of more favorably imparting the appearance, feel, and smoothness of the hair, the above hair conditioning ingredient is preferably at least one selected from the group consisting of dimer dilinoleyl dimer dilinoleate, PEG-3 caprylyl ether, dimethicone, and dimethiconol.

[0036] The hair cosmetic composition of the present invention may contain an emulsifier. Examples of the emulsifiers mentioned above include PEG-20 glyceryl triisostearate, PEG-5 glyceryl isostearate, PEG-6 glyceryl isostearate, PEG-8 glyceryl isostearate, PEG-15 glyceryl isostearate, PEG-20 glyceryl isostearate, PEG-25 glyceryl isostearate, PEG-30 glyceryl isostearate, PEG-60 glyceryl isostearate, sorbeth-30 tetraoleate, sorbeth- 40, Sorbet-60 Tetraoleate, PEG-7 Glyceryl Cocoate, PEG-4 Laurate, PEG-12 Laurate, Laureth-3, Laureth-4, Laureth-7, Laureth-9, Laureth-21, Laureth-23, Laureth-25, Laureth-30, Ceteth-6, Ceteth-10, Ceteth-15, Ceteth-20, Ceteth-25, Ceteth-30, Polyglyceryl-20 Octaisononanoate, Polyglyceryl-20 Hexaisononanoate, Polyglyceryl-20 Heptaysononanoate, Hexa Polyglyceryl-20 prylate, polyglyceryl-20 octacaprylate, polyglyceryl-20 decacaprylate, polyglyceryl-20 pentacaprylate, polyglyceryl-20 hexacaprate, polyglyceryl-20 octacaprate, polyglyceryl-10 diisostearate, polyglyceryl-10 isostearate, polyglyceryl-10 triisostearate, polyglyceryl-10 caprate, polyglyceryl-4 laurate, polyglyceryl-5 laurate, lauric acid Examples include polyglyceryl-6, polyglyceryl-10 laurate, polyglyceryl-2 caprate, polyglyceryl-6 caprylate, polyglyceryl-10 caprylate, polyglyceryl-2 caprylate, polyglyceryl-5 oleate, polyglyceryl-10 oleate, polyglyceryl-5 stearate, polyglyceryl-6 stearate, polyglyceryl-10 stearate, polyglyceryl-5 myristate, polyglyceryl-6 myristate, and polyglyceryl-10 myristate.

[0037] From the viewpoint of achieving both smoothness and quick drying of the hair during application and after drying, it is preferable that the content of the above-mentioned volatile hydrocarbon component is 30% by mass or more and 90% by mass or less of the total mass of the hair cosmetic composition of the present invention.

[0038] <Other> The hair cosmetic composition of the present invention may optionally contain additives such as powders, dyes, oily gelling agents, oil-soluble resins, polyhydric alcohols, lower alcohols, whitening agents, activators, blood circulation promoters, anti-seborrheic agents, anti-inflammatory agents, cooling agents (also known as cooling agents), antibacterial components, antiperspirant components, UV absorbers, UV scattering agents, moisturizers, fragrances, antioxidants, preservatives, defoaming agents, and various extracts. As the above-mentioned additives, known additives used in this field may be used.

[0039] The amount of the above-mentioned additive should be selected appropriately according to the characteristics of the additive.

[0040] <Method for manufacturing hair cosmetics> The method for producing the hair cosmetic composition of the present invention is not particularly limited, and the various materials described above may be mixed using a known stirring device. When using paste-like (semi-solid) materials at room temperature, they may be mixed using the stirring device while being appropriately heated.

[0041] This specification discloses the following: (1) This disclosure relates to a hair cosmetic composition containing a volatile hydrocarbon as an oily component, which is 100% naturally derived and has 12 to 14 carbon atoms, wherein the volatile hydrocarbon includes a linear structure and a branched structure, and the content of the branched structure relative to the total volatile hydrocarbon is 5% by mass or more and 70% by mass or less. Disclosure (2) is a hair cosmetic composition according to Disclosure (1), wherein the oily component is an ester oil. Disclosure (3) is a hair cosmetic according to Disclosure (2), wherein the ester oil is at least one selected from the group consisting of caprylyl caprylate, methylheptyl laurate, cetyl caprylate, and dicaprylyl maleate. Disclosure (4) is a hair cosmetic composition according to any of Disclosures (1) to (3) that contains a hair conditioning ingredient. Disclosure (5) is a hair cosmetic according to any one of Disclosures (1) to (4), wherein the content of the above-mentioned volatile hydrocarbon is 30% by mass or more and 90% by mass or less based on the total mass of the above-mentioned hair cosmetic. [Examples]

[0042] The present invention will be further described in detail below with reference to examples, but the present invention is not limited to these examples. Compounds not specifically mentioned were commercially available or reagents.

[0043] The following were used in the examples and comparative examples.

[0044] <Oily components> (Ester oil) Caprylyl caprylate (Licanatura CE-0808, manufactured by Shin Nippon Rika Co., Ltd.) Methylheptyl laurate (Licanatura CE-MH12, manufactured by Shin Nippon Rika Co., Ltd.) Dicaprylyl maleate (Licanatura CE-08MA, manufactured by Shin Nippon Rika Co., Ltd.) (Volatile hydrocarbons) Volatile hydrocarbon 1 (CA-1214, manufactured by Shin-Nippon Rika Co., Ltd., volatile hydrocarbon with 12-14 carbon atoms, naturally occurring index 100%, content of branched volatile hydrocarbons relative to total volatile hydrocarbons: 8% by mass) Volatile hydrocarbons 2 (CA-0012, manufactured by Shin-Nippon Rika Co., Ltd., volatile hydrocarbons with 12-14 carbon atoms, naturally occurring index 100%, content of branched volatile hydrocarbons relative to total volatile hydrocarbons: 7% by mass) Volatile hydrocarbon 3 (Licanatura CA-0012, manufactured by Shin Nippon Rika Co., Ltd., volatile hydrocarbon with 12 carbon atoms, naturally occurring index 100%, content of volatile hydrocarbons with a branched structure relative to the total volatile hydrocarbons: 66% by mass) Isododecane (Marcazole®, manufactured by Maruzen Petrochemical Co., Ltd., 0% naturally derived, contains only volatile hydrocarbons with a branched structure) Dodecane (reagent, contains only linear volatile hydrocarbons)

[0045] (Examples 1-11, Comparative Examples 1-14) Hair cosmetic products were prepared by mixing the various materials in the amounts listed in Tables 1 and 2 using a known stirring device.

[0046] <Exterior> The manufactured hair cosmetic was left to stand at room temperature for one day, and its appearance was visually inspected. (judgement) ○:Transparent ×: Opaque

[0047] <Smoothness of hair during application, quick drying, and smoothness of hair after drying> The smoothness of the hair upon application, the quick-drying properties, and the smoothness of the hair after drying of the prepared hair cosmetic were confirmed through the following sensory evaluations conducted on six female panelists. A 2g strand of hair was towel-dried after shampooing. Hair oil was then added to the strand so that its weight was 0.5% by mass, applied with fingers, and dried with a hairdryer for 1 minute. The smoothness of the hair upon application of the hair oil, the speed of drying, and the smoothness of the hair after drying were evaluated on the following 5-point scale. (Sensory evaluation) 5 points: Good 4 points: Fairly good 3 points: Neither agree nor disagree 2 points: Slightly bad 1 point: Bad Based on the average of the evaluations from the six female panelists, the following criteria were used for evaluation, and those that received all evaluations of "◎" or "〇" were judged to have passed. (Evaluation Criteria) ◎: Average score of 4 or higher ○: Average score is 3 or higher but less than 4 points △: Average score is between 2 and 3 points. ×: Average score is between 1 and 2 points.

[0048] [Table 1]

[0049] [Table 2]

[0050] From the above examples, it was confirmed that hair cosmetics containing 30, 50, 60, 70, and 90% by mass of plant-derived alkanes having 12 or 14 carbon atoms and containing 7, 8, and 66% by mass of branched structures yield hair cosmetics with excellent quick-drying properties and smoothness of hair during application and after drying. Comparative Examples 1, 3, 4, 5, 6, 8, 9, 11, and 13 confirmed that hair cosmetics containing 30, 50, 60, 70, and 90% by mass of petroleum-derived isododecane with 12 carbon atoms and 100% by mass of branched structure exhibited inferior hair smoothness during application or after drying. Comparative Examples 2, 12, and 14 confirmed that hair cosmetics containing 30% and 60% by mass of 100% by mass of dodecane, which has 12 carbon atoms and is a linear molecule, had poor quick-drying properties. Furthermore, Comparative Example 7 shows that the hair cosmetic composition containing 50% by mass of cyclopentasiloxane is non-uniform after mixing, and the hair conditioning agent does not dissolve well. Furthermore, it was confirmed that the hair cosmetic composition containing 20% ​​by mass of a plant-derived alkane with 12 carbon atoms and a branched structure content of 7% by mass was inferior to that of Comparative Example 10 in terms of hair smoothness upon application. [Industrial applicability]

[0051] The present invention provides a hair cosmetic containing plant-derived volatile hydrocarbons that achieves both quick drying properties and smoothness of the hair during application and after drying.

Claims

1. It contains volatile hydrocarbons with 12 to 14 carbon atoms as an oily component, with a 100% naturally derived index. The volatile hydrocarbons include volatile hydrocarbons having a straight-chain structure and volatile hydrocarbons having a branched structure. The content of the branched volatile hydrocarbon relative to the total volatile hydrocarbon is 5% by mass or more and 70% by mass or less. It is a hair cosmetic product.

2. The hair cosmetic composition according to claim 1, wherein the oily component comprises an ester oil.

3. The hair cosmetic composition according to claim 2, wherein the ester oil is at least one selected from the group consisting of caprylyl caprylate, methylheptyl laurate, cetyl caprylate, and dicaprylyl maleate.

4. A hair cosmetic composition according to any one of claims 1 to 3, comprising a hair conditioning ingredient.

5. The hair cosmetic according to any one of claims 1 to 3, wherein the content of the volatile hydrocarbon is 30% by mass or more and 90% by mass or less with respect to the total mass of the hair cosmetic.

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