Composition for preventing color fading of dyed hair under high-humidity conditions, and method for preventing color fading of dyed hair under high-humidity conditions using the same

Abstract

To provide a composition for preventing color fading of dyed hair under high-humidity conditions.SOLUTION: The present invention provides: a composition for preventing color fading of dyed hair under high-humidity conditions, the composition including, as an active ingredient, an oil agent having a Hansen solubility parameter distance Ra from δd=17.7 MPa0.5, δp=8.8 MPa0.5, and δh=1.0 MPa0.5, wherein Ra≤12 MPa0.5; and a method for preventing color fading of dyed hair under high-humidity conditions using the composition.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a composition for suppressing fading of dyed hair under high humidity conditions and a method for suppressing fading of dyed hair under high humidity conditions using the same.

Background Art

[0002] Hair dyeing has been practiced for a long time. In recent years, due to the improvement of the performance of hair dyes, it has become possible to dye hair in various colors, and it has become established as part of fashion. Hair dyeing includes white hair dyeing using oxidative hair dyes as hair dyes and hair coloring, as well as hair manicure using acidic hair dyes. However, it is known that hair fades due to factors such as hair washing and ultraviolet rays. As an index for evaluating the persistence of the dyeing effect by hair dyes, the dyeing fastness by a shampoo fastness test or a sunlight fastness test is used.

[0003] For the purpose of preventing fading of dyed hair due to such hair washing and ultraviolet rays, various techniques have been studied. For example, a post-treatment agent composition for hair dyeing containing an ester compound of an unsaturated dicarboxylic acid having 4 to 6 carbon atoms and an alcohol having 12 to 24 carbon atoms (Patent Document 1), a hair cosmetic containing chitosans, sterols, and oxycarboxylic acids (Patent Document 2), an oily hair cosmetic composition containing isoparaffins having a flash point of 70°C or higher and less than 150°C, ester oils, or vegetable oils, and isoparaffins having a flash point of 40°C or higher and less than 70°C (Patent Document 3), etc. have been disclosed.

[0004] On the other hand, the present inventors have obtained the finding that fading of dyed hair progresses not only due to hair washing and ultraviolet rays but also under high humidity conditions. However, no report has been made on a technique for preventing fading of dyed hair caused by such humidity.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

[0006] An object of the present invention is to provide a composition capable of suppressing fading of dyed hair under high humidity conditions. [Means for Solving the Problems

[0007] As a result of intensive studies to solve the above problems, the present inventors have found that when an oil agent having a Hansen solubility parameter distance Ra from δd = 17.7 MPa 0.5 , δp = 8.8 MPa 0.5 , δh = 1.0 MPa 0.5 within a specific range is applied to dyed hair, fading of the hair under high humidity conditions is suppressed, and the present invention has been completed.

[0008] That is, the present invention provides a composition for suppressing fading of dyed hair under high humidity conditions, containing as an active ingredient an oil agent having a Hansen solubility parameter distance Ra from δd = 17.7 MPa 0.5 , δp = 8.8 MPa 0.5 , δh = 1.0 MPa 0.5 such that Ra ≤ 12 MPa 0.5 .

[0009] Further, the present invention provides a method for suppressing fading of dyed hair under high humidity conditions, comprising applying to the dyed hair an oil agent having a Hansen solubility parameter distance Ra from δd = 17.7 MPa 0.5 , δp = 8.8 MPa 0.5 , δh = 1.0 MPa 0.5 such that Ra ≤ 12 MPa 0.5 . [Effects of the Invention

[0010] By applying the composition of the present invention to dyed hair, it has a high inhibitory effect on fading that occurs under high humidity conditions and can maintain the color of the dyed hair over a long period of time.

Brief Description of the Drawings

[0011]

Figure 1

Modes for Carrying Out the Invention

[0012] The composition for suppressing fading of dyed hair under high humidity conditions of the present invention (hereinafter referred to as "the composition of the present invention") has a distance Ra of Hansen solubility parameters from δd = 17.7 MPa 0.5 , δp = 8.8 MPa 0.5 , δh = 1.0 MPa 0.5 such that Ra (hereinafter, may be abbreviated as "Ra") satisfies Ra ≦ 12 MPa 0.5 and contains an oil agent as an active ingredient. The Hansen solubility parameter (HSP) is a value used for predicting the solubility of substances, published by Charles M. Hansen in 1967, and is composed of the following three parameters (unit: MPa 0.5 ). δd: Energy due to intermolecular dispersion force δp: Energy due to intermolecular dipole interaction δh: Energy due to intermolecular hydrogen bonding

[0013] These three parameters can be regarded as coordinates in a three-dimensional space (Hansen space). When the HSPs of two substances are placed in the Hansen space, the closer the distance between the two points, the easier they are to dissolve in each other, and it can be used as an index of the affinity between substances. The HSP of each substance can be obtained by using software for personal computers such as "HSPiP: Hansen Solubility Parameters in Practice".

[0014] The distance Ra (unit: MPa 0.5 ) of Hansen solubility parameters can be obtained by the following formula (1) when the coordinates of the HSP of component X are (δdX, δpX, δhX) and the coordinates of the HSP of component Y are (δdY, δpY, δhY). Ra can also be calculated by the Ra calculation function of HSPiP. Ra = [4×(δdX - δdY) 2 +(δpX - δpY) 2 +(δhX - δhY) 2 0.5 ···(1)

[0015] The active ingredient of the present invention is an oil agent in which the distance Ra of Hansen solubility parameters from δd = 17.7 MPa 0.5 , δp = 8.8 MPa 0.5 , δh = 1.0 MPa 0.5 is Ra ≤ 12 MPa 0.5 , preferably Ra ≤ 11 MPa 0.5 , more preferably Ra ≤ 10.5 MPa 0.5 , still more preferably Ra ≤ 10 MPa 0.5 , particularly preferably Ra ≤ 9.5 MPa 0.5 . Here, the Hansen solubility parameters (δd = 17.7 MPa 0.5 , δp = 8.8 MPa 0.5 , δh = 1.0 MPa 0.5 ) are the Hansen solubility parameters of the hair surface (see the 25th Kansai University Symposium on Advanced Science and Technology, Kansai University Institute for the Promotion of Advanced Science and Technology, Nanami Kanno, Hideki Yamamoto, Calculation of Hansen Solubility Parameters of Hair Using Copper Adsorption Amount, Table 3 (Hair(1))).

[0016] ​The oil agent in the present invention is not particularly limited as long as it is usually used in cosmetics or the like and can be used. Oily components such as higher alcohols, fatty acids, hydrocarbon oils, ester oils, and silicones can be used. For example, higher alcohols such as lauryl alcohol, myristyl alcohol, palmityl alcohol, stearyl alcohol, behenyl alcohol, hexadecyl alcohol, oleyl alcohol, isostearyl alcohol, hexyl dodecanol, octyl dodecanol, cetostearyl alcohol, decyl tetradecanol, cholesterol, phytosterol, sitosterol, lanosterol, fatty acids such as isostearic acid, oleic acid, hydrocarbon oils such as mineral oil, liquid paraffin, light liquid isoparaffin, α-olefin oligomer, vegetable squalane, squalane, polyisobutylene, polybutene, hydrogenated polyisobutene, diisobutyl adipate, 2-hexyldecyl adipate, di-2-heptylundecyl adipate, N-alkyl glycol monoisostearate, isocetyl isostearate, trimethylolpropane triisostearate, ethylene glycol di-2-ethylhexanoate, cetyl 2-ethylhexanoate, trimethylolpropane tri-2-ethylhexanoate, pentaerythritol tetra-2-ethylhexanoate, cetyl octanoate, oleyl oleate, octyl dodecyl oleate, ethyl oleate, decyl oleate, neopentyl glycol dicaprate, triethyl citrate, 2-ethylhexyl succinate, isocetyl stearate, butyl stearate, diisopropyl sebacate, di-2-ethylhexyl sebacate, cetyl lactate, myristyl lactate, isopropyl palmitate, 2-ethylhexyl palmitate, 2-hexyldecyl palmitate, 2-heptylundecyl palmitate, ethylhexyl salicylate, cholesteryl 12-hydroxystearate, dioctyldodecyl lauroyl glutamate, di(cholesteryl / octyldodecyl) lauroyl glutamate, di(cholesteryl / behenyl / octyldodecyl) lauroyl glutamate, di(octyldodecyl / phytosterol / behenyl) lauroyl glutamate, dimer dilinoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl),Di(isostearyl / phytosteryl) dimer dilinoleate, dimerdilinoleyl bisisostearyl dimer dilinoleate, dimerdilinoleyl diisostearate, dipentaerythritol (12-hydroxystearate / stearate / rosinate), hexakis (hydroxystearate / stearate / rosinate) dipentaerythritol, dipentaerythritol (12-hydroxystearate / isostearate), cholesteryl isostearate, cholesteryl hydroxystearate, cholesteryl ricinoleate, phytosteryl macadamia nut oil fatty acid, phytosteryl oleate, isopropyl myristate, octyldodecyl myristate, 2-hexyldecyl myristate, myristyl myristate, hexyldecyl dimethyloctanoate, ethyl laurate, hexyl laurate, diisostearyl malate, ethylhexyl hydroxystearate, glyceryl tri(2-ethylhexanoate), polyglyceryl-10 decaisostearate, polyglyceryl-2 diisostearate, polyglyceryl-2 triisostearate and other ester oils, beeswax, carnauba wax, candelilla wax, whale oil and other waxes, palm oil, palm kernel oil, olive oil, safflower oil, soybean oil, cottonseed oil and other vegetable oils, beef tallow, beef foot tallow, beef bone fat, hydrogenated beef tallow, hydrogenated oil, turtle oil, lard, horse fat, mink oil, liver oil, egg yolk oil and other animal oils, lanolin, liquid lanolin, reduced lanolin, lanolin alcohol, hard lanolin, lanolin acetate, isopropyl lanolin fatty acid and other lanolin derivatives, methylpolysiloxane, methylphenylpolysiloxane, polyether-modified polysiloxane, polyoxyalkylene·alkylmethylpolysiloxane·methylpolysiloxane copolymer, alkoxy-modified polysiloxane, alkyl-modified polysiloxane, crosslinked organopolysiloxane, fluorine-modified polysiloxane, amino-modified polysiloxane, glycerin-modified polysiloxane, higher alkoxy-modified silicone, higher fatty acid-modified silicone, silicone resin, silicone rubber, silicone resin and other silicones. In the present invention, from the viewpoint of the fading suppression effect under high humidity conditions of dyed hair, it is more preferable to be one or more selected from the group consisting of ester oils, higher alcohols, and hydrocarbon oils. Specifically,As ester oils, glyceryl tri(2-ethylhexanoate) (Ra = 7.29 MPa, 0.5 ) ethylhexyl salicylate (Ra = 5.93 MPa 0.5 ), dimer dilinoleyl diisostearate (Ra = 9.02 MPa 0.5 ), phytosteryl macadamia nut oil fatty acid (Ra = 6.87 MPa 0.5 ), ethyl oleate (Ra = 7.03 MPa 0.5 ), isopropyl myristate (Ra = 7.78 MPa 0.5 ), ethylhexyl hydroxystearate (Ra = 7.66 MPa 0.5 ) etc. can be mentioned. As higher alcohols, octyldodecanol (Ra = 9.78 MPa 0.5 ) etc. can be mentioned. As hydrocarbon oils, hydrogenated polyisobutene (Ra = 10.5 MPa 0.5 ) (kinematic viscosity at 37.8 °C: 2.64 mm 2 / s), hydrogenated polyisobutene (Ra = 9.38 MPa 0.5 ) (kinematic viscosity at 98.9 °C: 290 mm 2 / s) etc. can be mentioned. Thus, although the reason why an oil agent with Ra ≤ 12 MPa 0.5 can suppress the fading of dyed hair is not clear, among oil agents, it is considered that having a certain affinity with the hair surface and uniformly protecting (for example, hydrophobizing) the hair surface can suppress the progress of fading under high humidity conditions.

[0017] As the ester oil, it is preferable to use one or more selected from the group consisting of triglyceride monoglyceride esters, salicylic acid derivatives, dimer acid esters, dipentaerythritol fatty acid esters, fatty acid cholesteryl esters, fatty acid phytosteryl esters, polyglycerin fatty acid esters, and fatty acid esters having a branched structure or an unsaturated structure. More preferably, one or more selected from the group consisting of triglyceride monoglyceride esters, salicylic acid derivatives, dimer acid esters, dipentaerythritol fatty acid esters, fatty acid phytosteryl esters, polyglycerin fatty acid esters, and fatty acid esters having a branched structure or an unsaturated structure are used. Even more preferably, one or more selected from the group consisting of triglyceride monoglyceride esters, salicylic acid derivatives, dimer acid esters, fatty acid phytosteryl esters, and fatty acid esters having a branched structure or an unsaturated structure are used. Particularly preferably, one or more selected from the group consisting of triglyceride monoglyceride esters, salicylic acid derivatives, dimer acid esters, fatty acid phytosteryl esters, and fatty acid esters having a branched structure or an unsaturated structure are used.

[0018] The triglyceride monoglyceride ester has a triester structure of fatty acid and glycerin. Examples thereof include glyceryl tri(2-ethylhexanoate), glyceryl tri(caprylic acid / capric acid / myristic acid / stearic acid), glyceryl tri(caprylic acid / capric acid), shea butter, palm oil, camellia oil, meadowfoam oil, coconut oil, hydrogenated coconut oil, hydrogenated palm oil, etc. More preferably, glyceryl tri(2-ethylhexanoate) is used.

[0019] The salicylic acid derivative is not particularly limited as long as it is a derivative of salicylic acid, but is preferably an ester obtained by dehydration condensation of a compound having a hydroxy group (-OH) with the carboxy group (-COOH) of salicylic acid. Examples of the compound having a hydroxy group (-OH) include alcohols. Specifically, for example, homosalate, ethylhexyl salicylate, benzyl salicylate, butyloctyl salicylate, methyl salicylate, etc. may be mentioned, and it is more preferable to use ethylhexyl salicylate.

[0020] Examples of the dimer acid ester include dimer dilinoleic acid (phytosteryl / isostearyl / cetyl / stearyl / behenyl), di(isostearyl / phytosteryl) dimer dilinoleate, dimer dilinoleyl bisisostearyl dimer dilinoleate, dimer dilinoleyl diisostearate, etc., and it is more preferable to use dimer dilinoleyl diisostearate.

[0021] Examples of the dipentaerythritol fatty acid ester include (12-hydroxystearic acid / stearic acid / rosin acid) dipentaerythritol, hexa(hydroxystearic acid / stearic acid / rosin acid) dipentaerythritol, (12-hydroxystearic acid / isostearic acid) dipentaerythritol, etc., and it is preferable to use hexa(hydroxystearic acid / stearic acid / rosin acid) dipentaerythritol.

[0022] Examples of the fatty acid phytosteryl ester include phytosteryl macadamia nut oil fatty acid, phytosteryl oleate, etc., and it is preferable to use phytosteryl macadamia nut oil fatty acid.

[0023] Polyglycerol fatty acid ester is an ester oil of polyglycerol with a polymerization degree of 2 or more and a fatty acid. Examples of polyglycerol include polyglycerol with a polymerization degree of 2 to 10, such as diglycerol, triglycerol, tetraglycerol, pentaglycerol, hexaglycerol, decaglycerol, etc. Also, the fatty acid constituting the polyglycerol fatty acid ester is not particularly limited, but linear or branched fatty acids having 8 to 22 carbon atoms are preferably used. For example, linear fatty acids such as lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, eicosenoic acid, behenic acid, and branched fatty acids such as 2-ethylhexanoic acid, isononanoic acid, isodecanoic acid, isotridecanoic acid, isomyristic acid, isopalmitic acid, isostearic acid, isoarachidic acid, isobehenic acid, etc. These may be one kind or a mixture of two or more kinds of fatty acids. In the present invention, the fatty acid constituting the polyglycerol fatty acid ester is preferably a branched fatty acid, more preferably a branched fatty acid having 8 to 22 carbon atoms, and even more preferably a branched fatty acid having 8 to 18 carbon atoms. Specifically, polyglyceryl-2 diisostearate, polyglyceryl-2 triisostearate, polyglyceryl-2 tetraisostearate, polyglyceryl-10 decaethylhexanoate, polyglyceryl-10 decaisostearate, etc. can be mentioned, and it is preferable to use polyglyceryl-10 decaisostearate.

[0024] A fatty acid ester having a branched structure or an unsaturated structure is one having a branched structure or an unsaturated structure in at least either a fatty acid or a monohydric alcohol. Note that the fatty acid includes those in which a part of the hydrogen in the carbon chain is substituted with a hydroxy group. In the present invention, a fatty acid ester of a fatty acid having 4 to 18 carbon atoms and a monohydric alcohol having 2 to 10 carbon atoms is preferable, a fatty acid ester of a fatty acid having 4 to 18 carbon atoms and a monohydric alcohol having 2 to 8 carbon atoms is more preferable, and a fatty acid ester of a fatty acid having 8 to 18 carbon atoms and a monohydric alcohol having 2 to 8 carbon atoms is even more preferable. Specifically, for example, ethyl oleate, isopropyl palmitate, 2-ethylhexyl palmitate, isopropyl myristate, 2-ethylhexyl hydroxystearate, etc. can be mentioned. Note that the fatty acid ester excludes those corresponding to salicylic acid derivatives, dimer acid esters, dipentaerythritol fatty acid esters, fatty acid cholesteryl esters, fatty acid phytosteryl esters, and polyglycerin fatty acid esters.

[0025] The IOB of the fatty acid ester having a branched structure or an unsaturated structure is not particularly limited, but those having a value of 0.15 to 0.5 are preferable, and those having a value of 0.15 to 0.4 are more preferable. For example, isotridecyl isononanoate (IOB: 0.15), isopropyl isostearate (IOB: 0.15), trimethylolpropane triisostearate (IOB: 0.16), isopropyl palmitate (IOB: 0.16), ethyl oleate (IOB: 0.16), isopropyl myristate (IOB: 0.18), isodecyl isononanoate (IOB: 0.19), isononyl isononanoate (IOB: 0.20), distearyl malate (IOB: 0.28), 2-ethylhexyl hydroxystearate (IOB: 0.31), diethylhexyl succinate (IOB: 0.32), etc. can be mentioned, and one or more of these can be used. Note that IOB (Inorganic-Organic balance) is calculated by the following formula (2). IOB = (Σ inorganic value / Σ organic value) ··· (2)

[0026] The molecular weight of the fatty acid ester having a branched structure or an unsaturated structure is not particularly limited, but those having an average molecular weight of 200 to 700 are preferred, those having an average molecular weight of 200 to 600 are more preferred, and those having an average molecular weight of 200 to 500 are even more preferred. For example, ethyl oleate (molecular weight: 310), isopropyl myristate (molecular weight: 270), isodecyl isononanoate (molecular weight: 298), isononyl isononanoate (molecular weight: 284), distearyl malate (molecular weight: 639), ethylhexyl hydroxystearate (molecular weight: 412), etc. can be mentioned. In the present invention, as the fatty acid ester having a branched structure or an unsaturated structure, it is preferable to use one or more selected from the group consisting of ethyl oleate, isopropyl myristate, isodecyl isononanoate, isononyl isononanoate, distearyl malate, and ethylhexyl hydroxystearate, and it is more preferable to use one or more selected from the group consisting of ethyl oleate, isopropyl myristate, and ethylhexyl hydroxystearate.

[0027] As the higher alcohol, those that are liquid at 25°C are preferred, and those having a branched structure or an unsaturated structure are more preferred. For example, hexadecyl alcohol, oleyl alcohol, isostearyl alcohol, hexyl dodecanol, octyl dodecanol, decyl tetradecanol, etc. can be mentioned. Here, being liquid at 25°C means having fluidity at 25°C. In the present invention, it is preferable to use octyl dodecanol as the higher alcohol.

[0028] As the hydrocarbon oil, those that are liquid at 25°C are preferred. For example, mineral oil, liquid paraffin, light liquid isoparaffin, α-olefin oligomer, vegetable squalane, squalane, polyisobutylene, polybutene, hydrogenated polyisobutylene, etc. may be mentioned. In the present invention, it is more preferable to use mineral oil and / or hydrogenated polyisobutylene. As the hydrogenated polyisobutylene, those having an average molecular weight of 1500 or less are preferred, and those having an average molecular weight of 1000 or less are more preferred. Further, as the hydrogenated polyisobutylene, the kinematic viscosity at 98.9°C has an upper limit of 800 mm 2 / s or less is preferred, and 400 mm 2 / s or less is more preferred. As commercially available products of hydrogenated polyisobutylene, for example, IP Solvent 2028 (carbon number 12 to 18 / kinematic viscosity at 37.8°C: 2.64 mm 2 / s), Pearl Rim 18 (average carbon number 72 / average molecular weight: 1000 / kinematic viscosity at 98.9°C: 290 mm 2 / s), Pearl Rim 24 (average carbon number 96 / average molecular weight: 1350 / kinematic viscosity at 98.9°C: 740 mm 2 / s), etc. may be mentioned. One or more selected from these can be used. Here, being liquid at 25°C means having fluidity at 25°C.

[0029] The active ingredient of the present invention further preferably has δd in the Hansen solubility parameter of δd ≧ 13 MPa 0.5 or more, more preferably δd ≧ 14 MPa 0.5 or more, and even more preferably δd ≧ 15 MPa 0.5 or more. As the upper limit, δd ≦ 30 MPa 0.5 is preferred, and δd ≦ 20 MPa 0.5 is more preferred. Further, in the present invention, δd in the Hansen solubility parameter preferably satisfies 13 ≦ δp ≦ 30 MPa 0.5 more preferably 14 ≦ δp ≦ 20 MPa 0.5 and even more preferably 15 ≦ δp ≦ 20 MPa 0.5Those with [specific conditions] are more preferred. Examples of such oily agents include glyceryl tri(2-ethylhexanoate) (δd = 16.4 MPa 0.5 ), ethylhexyl salicylate (δd = 17.2 MPa 0.5 ), dimer dilinoleyl diisostearate (δd = 16.5 MPa 0.5 ), phytosteryl macadamiate (δd = 17.3 MPa 0.5 ), ethyl oleate (δd = 16.2 MPa 0.5 ), isopropyl myristate (δd = 15.9 MPa 0.5 ), ethylhexyl hydroxystearate (δd = 16.1 MPa 0.5 ), octyldodecanol (δd = 16.1 MPa 0.5 ), hydrogenated polyisobutene (δd = 14.8 MPa 0.5 )(kinematic viscosity at 37.8 °C is 2.64 mm 2 / s), hydrogenated polyisobutene (δd = 16.0 MPa 0.5 )(kinematic viscosity at 98.9 °C is 290 mm 2 / s), and the like.

[0030] The active ingredient of the present invention preferably has δh in the Hansen solubility parameter such that δh ≦ 8 MPa 0.5 , more preferably δh ≦ 7.5 MPa 0.5 , still more preferably δh ≦ 7 MPa 0.5 , even more preferably δh ≦ 6 MPa 0.5 , and particularly preferably δh ≦ 6 MPa 0.5 . Examples of such oily agents include glyceryl tri(2-ethylhexanoate) (δh = 3.1 MPa 0.5 ), ethylhexyl salicylate (δh = 5.8 MPa 0.5 ), dimer dilinoleyl diisostearate (δh = 0.7 MPa 0.5 ), phytosteryl macadamiate (δh = 1.5 MPa 0.5 ), ethyl oleate (δh = 4.0 MPa 0.5 ), isopropyl myristate (δh = 2.8 MPa 0.5) Octyldodecanol (δh = 7.4 MPa 0.5 ) Hydrogenated polyisobutene (δh = 0.1 MPa 0.5 )(kinematic viscosity at 37.8 °C: 2.64 mm 2 / s), hydrogenated polyisobutene (δh = 0.1 MPa 0.5 )(kinematic viscosity at 98.9 °C: 290 mm 2 / s), etc. can be mentioned.

[0031] The active ingredient of the present invention preferably has δp in the Hansen solubility parameter such that δp ≦ 8 MPa 0.5 , and more preferably δp ≦ 6 MPa 0.5 . Examples of such oily agents include glyceryl tri-2-ethylhexanoate (δp = 2.3 MPa 0.5 ), ethylhexyl salicylate (δp = 5.5 MPa 0.5 ), dimer dilinoleyl diisostearate (δp = 0.1 MPa 0.5 ), phytosteryl macadamiate (δp = 2.0 MPa 0.5 ), ethyl oleate (δp = 3.2 MPa 0.5 ), isopropyl myristate (δp = 2.1 MPa 0.5 ), ethylhexyl hydroxystearate (δp = 2.6 MPa 0.5 ), octyldodecanol (δp = 2.2 MPa 0.5 ), hydrogenated polyisobutene (δp = 0.1 MPa 0.5 )(kinematic viscosity at 37.8 °C: 2.64 mm 2 / s), hydrogenated polyisobutene (δp = 0.1 MPa 0.5 )(kinematic viscosity at 98.9 °C: 290 mm 2 / s), etc. can be mentioned.

[0032] The content of the oily agent, which is the above-mentioned active ingredient, in the composition of the present invention is not particularly limited, but for example, 0.005 to 100% by mass (hereinafter simply referred to as “%”) is preferable, more preferably 0.1 to 99.5%, and still more preferably 0.5 to 98%.

[0033] In addition to the above-mentioned oil agent which is the active ingredient, components commonly used in cosmetics can be arbitrarily used in the composition of the present invention. For example, surfactants such as cationic surfactants, nonionic surfactants, anionic surfactants, and amphoteric surfactants, ultraviolet absorbers, water-soluble polymers, polyhydric alcohols, aqueous components such as saccharides, antibacterial agents, preservatives, cooling agents, powders, vitamins, beauty components, fragrances, etc. can be appropriately contained within a range that does not impair the effects of the present invention. Further, the composition of the present invention can be produced by mixing the above-mentioned active ingredient and optional ingredients according to a known production method.

[0034] The dosage form and form of the composition of the present invention are not particularly limited. For example, it can be in any dosage form such as liquid, emulsion, solid, cream, gel, mousse, mist, multilayer type, etc. It can be in the form of hair cosmetics such as shampoo, conditioner, hair pack used during hair washing, in-bath treatment, out-of-bath treatment, hair oil, hair styling product, etc. used after hair washing, and can be applied to the hair by methods such as coating and spraying. Since the composition of the present invention does not need to be rinsed off after application, it is preferably used as an out-of-bath hair cosmetic such as out-of-bath treatment, hair oil, hair styling product, etc. Incidentally, the composition of the present invention may be used as it is as the final-form preparation (cosmetic), or may be used as a final-form preparation (cosmetic) that is a part of the composition and further mixed with other components.

[0035] The composition of the present invention is not particularly limited by the type of hair dye applied to the target dyed hair, etc. It can be targeted at hair dyed with known hair dyes such as oxidative hair dyes and acidic hair dyes. Further, the composition of the present invention is excellent in the effect of suppressing the fading of dyed hair due to various causes such as hair washing and ultraviolet rays, and particularly shows an excellent suppressing effect against fading under high humidity conditions that have not been known so far. For example, it can effectively suppress the fading that occurs under high humidity conditions of 60% or more, and further 80% or more relative humidity.

[0036] The method for suppressing fading of the present invention is the above-mentioned δd = 17.7 MPa 0.5 、δp = 8.8 MPa 0.5 、δh = 1.0 MPa0.5 The distance Ra of the Hansen solubility parameter from [specific source] satisfies Ra ≦ 12 MPa 0.5 The present invention relates to an oil agent applied to dyed hair, where the distance Ra of the Hansen solubility parameter from [specific source] satisfies Ra ≦ 12 MPa. By applying this oil agent directly or as the above-described composition to dyed hair, fading can be suppressed, and in particular, fading occurring under high humidity conditions such as during the rainy season can be suppressed. The method of applying to dyed hair is not particularly limited. For example, by coating, spraying, etc., to the entire hair, δd = 17.7 MPa 0.5 , δp = 8.8 MPa 0.5 , δh = 1.0 MPa 0.5 The distance Ra of the Hansen solubility parameter from [specific source] satisfies Ra ≦ 12 MPa 0.5 As the oil agent satisfying this condition, an amount of about 0.00005 to 20 g per application can be applied after hair dyeing, before hair washing, after hair washing, etc.

[0037] In addition, the present invention can also adopt the following configurations. 〈1〉 δd = 17.7 MPa 0.5 , δp = 8.8 MPa 0.5 , δh = 1.0 MPa 0.5 The distance Ra of the Hansen solubility parameter from [specific source] satisfies Ra ≦ 12 MPa 0.5 A composition for suppressing fading of dyed hair under high humidity conditions, containing an oil agent with the distance Ra of the Hansen solubility parameter from [specific source] satisfying Ra ≦ 12 MPa as an active ingredient. 〈2〉 The δd in the Hansen solubility parameter of the oil agent satisfies δd ≧ 13 MPa 0.5 The composition for suppressing fading according to 〈1〉 above 〈3〉 The δh in the Hansen solubility parameter of the oil agent satisfies δh ≦ 8 MPa 0.5 The composition for suppressing fading according to 〈1〉 or 〈2〉 above 〈4〉 The δp in the Hansen solubility parameter of the oil agent satisfies δp ≦ 8 MPa 0.5 The composition for suppressing fading according to any one of 〈1〉 to 〈3〉 above 〈5〉 The oil agent is one or more selected from the group consisting of ester oil, higher alcohol, and hydrocarbon oil, and is the composition for suppressing fading according to any one of <1> to <4>. <6> The ester oil is one or more selected from the group consisting of triglyceride monoglyceride, salicylic acid derivative, dimer acid ester, dipentaerythritol fatty acid ester, fatty acid cholesteryl ester, fatty acid phytosteryl ester, polyglycerin fatty acid ester, and fatty acid ester having a branched structure or an unsaturated structure, and is the composition for suppressing fading according to <5>. <7> The ester oil is one or more selected from the group consisting of triglyceride monoglyceride, salicylic acid derivative, dimer acid ester, dipentaerythritol fatty acid ester, fatty acid phytosteryl ester, polyglycerin fatty acid ester, and fatty acid ester having a branched structure or an unsaturated structure, and is the composition for suppressing fading according to <6>. <8> The ester oil is one or more selected from the group consisting of triglyceride monoglyceride, salicylic acid derivative, dimer acid ester, dipentaerythritol fatty acid ester, fatty acid phytosteryl ester, and fatty acid ester having a branched structure or an unsaturated structure, and is the composition for suppressing fading according to <7>. <9> The ester oil is one or more selected from the group consisting of triglyceride monoglyceride, salicylic acid derivative, dimer acid ester, fatty acid phytosteryl ester, and fatty acid ester having a branched structure or an unsaturated structure, and is the composition for suppressing fading according to <8>. <10> The triglyceride monoglyceride is glyceryl tri(2-ethylhexanoate), and is the composition for suppressing fading according to any one of <6> to <9>. <11> The salicylic acid derivative is ethylhexyl salicylate, and is the composition for suppressing fading according to any one of <6> to <9>. <12> The composition for suppressing fading according to any one of <6> to <9>, wherein the dimer acid ester is dimerinoleyl diisostearate. 〈13〉 The composition for suppressing fading according to any one of <6> to <9>, wherein the fatty acid phytosterol ester is phytosteryl macadamia nut oil fatty acid. 〈14〉 〈14〉 The composition for suppressing fading according to any one of <6> to <9>, wherein the fatty acid ester having a branched structure or an unsaturated structure is a fatty acid ester of a fatty acid having 4 to 18 carbon atoms and a monohydric alcohol having 2 to 10 carbon atoms. 〈15〉 〈15〉 The composition for suppressing fading according to any one of <6> to <9> and <14>, wherein the IOB of the fatty acid ester having a branched structure or an unsaturated structure is 0.15 to 0.5. 〈16〉 〈16〉 The composition for suppressing fading according to any one of <6> to <9>, <14>, and <15>, wherein the molecular weight of the fatty acid ester having a branched structure or an unsaturated structure is 200 to 700. 〈17〉 〈17〉 The composition for suppressing fading according to any one of <6> to <9> and <14> to <16>, wherein the fatty acid ester having a branched structure or an unsaturated structure is one or more selected from the group consisting of ethyl oleate, isopropyl myristate, and ethylhexyl hydroxystearate. 〈18〉 〈18〉 The composition for suppressing fading according to <5>, wherein the higher alcohol is liquid at 25°C. 〈19〉 〈19〉 The composition for suppressing fading according to <5> or <18>, wherein the higher alcohol is octyldodecanol. 〈20〉 〈20〉 The composition for suppressing fading according to <5>, wherein the hydrocarbon oil is liquid at 25°C. 〈21〉 〈21〉 The composition for suppressing fading according to <5> or <20>, wherein the hydrocarbon oil is mineral oil and / or hydrogenated polyisobutene. 〈22〉 It is a composition for suppressing fading as described in <21> where the average molecular weight of the hydrogenated polyisobutene is 1500 or less. <23> The kinematic viscosity at 98.9 °C of the hydrogenated polyisobutene is 800 mm 2 / s or less, and it is a composition for suppressing fading as described in <21> or <22>. <24> It is a composition for suppressing fading as described in any one of <1> to <23> and is for use in autobuses. <25> δd = 17.7 MPa 0.5 and δp = 8.8 MPa 0.5 and δh = 1.0 MPa 0.5 The distance Ra of the Hansen solubility parameter from these is Ra ≤ 12 MPa 0.5 This is a method for suppressing fading under high humidity conditions of dyed hair, where an oil agent with this property is applied to the dyed hair. <26> δd in the Hansen solubility parameter of the oil agent is δd ≥ 13 MPa 0.5 as described in <25> This is the method for suppressing fading as described therein. <27> δh in the Hansen solubility parameter of the oil agent is δh ≤ 8 MPa 0.5 This is the method for suppressing fading as described in <25> or <26>. <28> δp in the Hansen solubility parameter of the oil agent is δp ≤ 8 MPa 0.5 This is the method for suppressing fading as described in any one of <25> to <27>. <29> This is the method for suppressing fading as described in any one of <25> to <28>, where the oil agent is one or more selected from the group consisting of ester oils, higher alcohols, and hydrocarbon oils. <30> The ester oil is one or more selected from the group consisting of triglyceride monoglyceride esters, salicylic acid derivatives, dimer acid esters, dipentaerythritol fatty acid esters, fatty acid cholesteryl esters, fatty acid phytosteryl esters, polyglycerin fatty acid esters, and fatty acid esters having a branched structure or an unsaturated structure, and is the fading suppression method according to <29>. <31> The ester oil is one or more selected from the group consisting of triglyceride monoglyceride esters, salicylic acid derivatives, dimer acid esters, dipentaerythritol fatty acid esters, fatty acid phytosteryl esters, polyglycerin fatty acid esters, and fatty acid esters having a branched structure or an unsaturated structure, and is the fading suppression method according to <30>. <32> The ester oil is one or more selected from the group consisting of triglyceride monoglyceride esters, salicylic acid derivatives, dimer acid esters, dipentaerythritol fatty acid esters, fatty acid phytosteryl esters, and fatty acid esters having a branched structure or an unsaturated structure, and is the fading suppression method according to <31>. <33> The ester oil is one or more selected from the group consisting of triglyceride monoglyceride esters, salicylic acid derivatives, dimer acid esters, fatty acid phytosteryl esters, and fatty acid esters having a branched structure or an unsaturated structure, and is the fading suppression method according to <32>. <34> The triglyceride monoglyceride ester is glyceryl tri(2-ethylhexanoate), and is the fading suppression method according to any one of <30> to <33>. <35> The salicylic acid derivative is ethylhexyl salicylate, and is the fading suppression method according to any one of <30> to <33>. <36> The dimer acid ester is dimerdilinoleyl diisostearate, and is the fading suppression method according to any one of <30> to <33>. <37> The fading inhibition method according to any one of <30> to <33>, wherein the fatty acid phytosteryl ester is macadamia nut oil fatty acid phytosterol. <38> <38> The fading inhibition method according to any one of <30> to <33>, wherein the fatty acid ester having a branched structure or an unsaturated structure is a fatty acid ester of a fatty acid having 4 to 18 carbon atoms and a monohydric alcohol having 2 to 10 carbon atoms. <39> <39> The fading inhibition method according to any one of <30> to <33> and <38>, wherein the IOB of the fatty acid ester having a branched structure or an unsaturated structure is 0.15 to 0.5. <40> The fading inhibition method according to any one of <30> to <33>, <38>, and <39>, wherein the molecular weight of the fatty acid ester having a branched structure or an unsaturated structure is 200 to 700. <41> The fading inhibition method according to any one of <30> to <33> and <38> to <40>, wherein the fatty acid ester having a branched structure or an unsaturated structure is one or more selected from the group consisting of ethyl oleate, isopropyl myristate, and ethylhexyl hydroxystearate. <42> <42> The fading inhibition method according to <29>, wherein the higher alcohol is liquid at 25°C. <43> <43> The fading inhibition method according to <29> or <42>, wherein the higher alcohol is octyldodecanol. <44> <44> The fading inhibition method according to <29>, wherein the hydrocarbon oil is liquid at 25°C. <45> <45> The fading inhibition method according to <29> or <44>, wherein the hydrocarbon oil is mineral oil and / or hydrogenated polyisobutene. <46> <46> The fading inhibition method according to <45>, wherein the average molecular weight of the hydrogenated polyisobutene is 1500 or less. <47> <47> The kinematic viscosity of the hydrogenated polyisobutene at 98.9°C is 2 <47> 800 mm / s or less, and the fading inhibition method according to <45> or <46>.

[0038] Hereinafter, the present invention will be described in more detail based on examples and the like. It should be noted that the examples and the like described below show an example of typical examples of the present invention, and the scope of the present invention is not construed narrowly thereby.

[0039] Reference Example 1 Fading test of dyed hair (red): As human hair tresses, test hair tresses (1 g, length 10 cm, light brown (manufactured by Staffs)) were used. These test hair tresses were dyed using the following dye (red oxidation dye). For the dyeing, Agent 1 and Agent 2 of the oxidation dye were mixed at a mass ratio of 1:1 to prepare a dyeing chemical solution. This chemical solution was applied while uniformly spreading about 9 g on the human hair tresses. After leaving it for 20 minutes, it was rinsed with warm water until the color of the chemical solution disappeared. Then, it was washed with the shampoo for evaluation shown in the following formulation, rinsed, and thoroughly dried with a dryer to prepare dyed hair. This dyed hair was placed in an environment of room temperature (25°C), relative humidity 40%, relative humidity 60%, or relative humidity 80% for 1 week (the appearance of the dyed hair after 1 week is shown in FIG. 1). Before and after the start of the test, the hair tresses were colorimetrically measured by the method shown below, and the color difference ΔE was calculated. The results are shown in Table 1.

[0040] <Dye> Agent 1: Assort Aria C C-8 / RV (manufactured by Nihon Kayaku Co., Ltd.) Agent 2: Assort Aria C OX-6.0 (manufactured by Nihon Kayaku Co., Ltd.)

[0041] <Shampoo for evaluation> (Components) (mass%) 1 Sodium lauryl sulfate 7.0 2 Cocamidopropyl betaine 5.0 3 Citric acid 0.5 4 Methylparaben 0.5 5 Sodium benzoate 0.5 6 Polyquaternium-10 0.5 7 Purified water Balance

[0042] (Manufacturing method) A: Add component (6) to 10% of component (7) and swell uniformly at 80 °C. B: Add components (1)-(5) to the remainder of component (7) and mix uniformly at 80 °C. to make it. C: Mix A and B and cool to room temperature. D: Fill C into a container to obtain a shampoo for evaluation (pH = 4.5 at 25 °C).

[0043] <Spectrophotometer and measurement conditions> Spectrophotometer CM-700d (manufactured by Konica Minolta) Target mask: Φ3 mm Measurement mode: None Measurement method: Place a human hair bundle on a black background and measure by applying a color difference meter from a vertical angle. Measurement location: Measure the central part of the human hair bundle (around the middle from the tip to the root). (The front and back of the human hair bundle to be measured should be the same side before and after the test.)

[0044]

Table 1

[0045] From these results, it became clear that the dyed hair fades under high humidity conditions.

[0046] Test Example 1 Fading suppression test of dyed hair (red): Red-dyed hair was prepared in the same manner as in Reference Example 1. On the day after hair dyeing, 5 drops (about 0.15 ml) of the following samples were evenly applied to the dyed hair, and then hung in a thermostatic chamber at a temperature of 25 °C and a relative humidity of 80%. After one week, the samples were collected, washed with an evaluation shampoo including the non-applied samples, and dried with a dryer. In the same manner as in Reference Example 1, each dyed hair before and after the test was color-measured with a spectrophotometer to obtain the color difference ΔE, and the ΔE (relative evaluation) of each dyed hair applied with the samples was calculated with the ΔE of the non-applied sample (Comparative Example 1) being set to 1, and the fading suppression effect was evaluated according to the following evaluation criteria. The results are shown in Table 2. Also shown in Table 2 are the values of the Hansen solubility parameters determined by the personal computer software "HSPiP" for each sample and the distance Ra from the HSP on the hair surface (δd = 17.7 MPa 0.5 , δp = 8.8 MPa 0.5 , δh = 1.0 MPa 0.5 ).

[0047] <Sample> Note 1: LUSPLAN DD-IS (manufactured by Nippon Seika Co., Ltd.) Note 2: Pearl Lime 18 (manufactured by NOF Corporation) Note 3: MYRITOL GTEH (manufactured by BASF) Note 4: NIKKOL EOO (manufactured by Nippon Surfactant Industry Co., Ltd.) Note 5: IPM-EX (manufactured by Nippon Surfactant Industry Co., Ltd.) Note 6: IP Solvent 2028 MU (manufactured by Idemitsu Kosan Co., Ltd.) Note 7: PLANDOOL-MAS (manufactured by Nippon Seika Co., Ltd.) Note 8: NEO HELIOPAN OS (manufactured by Symrise) Note 9: Lysocasta IOHS (manufactured by Kao Alcohol Industry Co., Ltd.) Note 10: EUTANOL G-JP (manufactured by BASF) Note 11: SH 245 FLUID (manufactured by Toray Dow Corning Co., Ltd.)

[0048] <Evaluation Criteria for Fading Suppression Effect> Evaluation was performed in the following six grades according to the value of ΔE (relative evaluation). AA: Less than 0.6 A: 0.6 or more and less than 0.7 B: Above 0.7 and less than 0.8 C: Above 0.8 and less than 0.9 D: Above 0.9 and less than 1.0 E: Above 1.0

[0049]

Table 2

[0050] As shown in the above results, δd = 17.7 MPa 0.5 , δp = 8.8 MPa 0.5 , δh = 1.0 MPa 0.5 The distance Ra of the Hansen solubility parameter from... is 12 MPa 0.5 By treating with an oil agent below this value, it was confirmed that the fading of dyed hair (red) was suppressed. In contrast, for cyclopentasiloxane where the distance Ra of the Hansen solubility parameter from δd = 17.7 MPa 0.5 , δp = 8.8 MPa 0.5 , δh = 1.0 MPa 0.5 is greater than 12 MPa, no fading suppression effect was observed. 0.5 No fading suppression effect was observed with cyclopentasiloxane having a greater distance Ra than 12 MPa.

[0051] Test Example 2 Fading suppression test of dyed hair (blue): The hair was dyed with the following dyeing agent (blue oxidation dye) instead of the oxidation dye (red) used in Test Example 1, and the color differences ΔE and ΔE (relative evaluation) before and after the test were determined in the same manner as in Test Example 1 except that the following oil agents were used as samples, and the fading suppression effect was evaluated. The results are shown in Table 3.

[0052] <Dyeing agent> Agent 1: Fiore P Color Aqua Blue 7 (manufactured by Fiore Cosmetics Co., Ltd.) Agent 2: Fiore BL Color OX 6% (manufactured by Fiore Cosmetics Co., Ltd.)

[0053] <Sample> Note 1: LUSPLAN DD - IS (manufactured by Nippon Fine Chemical Co., Ltd.) Note 2: Pearl Ream 18 (manufactured by NOF Corporation) Note 3: MYRITOL GTEH (manufactured by BASF) Note 4: NIKKOL EOO (manufactured by Nippon Surfactant Industry Co., Ltd.) Note 5: IPM-EX (manufactured by Nippon Surfactant Industry Co., Ltd.) Note 6: IP Solvent 2028 MU (manufactured by Idemitsu Kosan Co., Ltd.) Note 7: PLANDOOL-MAS (manufactured by Nippon Seika Chemical Co., Ltd.)

[0054]

Table 3

[0055] From the above results, δd = 17.7 MPa 0.5 , δp = 8.8 MPa 0.5 , δh = 1.0 MPa 0.5 The distance Ra of the Hansen solubility parameter from these values is 12 MPa 0.5 It was confirmed that the following oil agents can suppress the fading of dyed hair (blue).

[0056] Formulation Example 1: Hair Mist (Components) (mass%) 1 Ethanol 10 2 Dicocoyl ethyl hydroxyethylmonium methosulfate 0.05 3 PEG-50 hydrogenated castor oil isostearate 0.3 4 Fragrance 0.1 5 Amodimethicone 0.5 6 Diphenylsiloxyphenyltrimethicone 0.3 7 Isopropyl myristate 0.005 8 Methylparaben 0.1 9 Purified water Balance

[0057] (Manufacturing method) A: Add component (2) to component (1) and mix uniformly. B: Mix components (3) to (7) uniformly at 50°C. C: Add component (8) and A to component (9) and mix uniformly. D: Add B to C and mix uniformly. D: Fill it into a container with a push-type spray nozzle (spray orifice diameter φ0.3 mm: non-aerosol container) to obtain a hair mist.

[0058] When the hair mist of Formulation Example 1 was sprayed once on dyed hair and a fading suppression test was carried out with reference to the methods described in Test Examples 1 and 2, the hair mist of Formulation Example 1 was excellent in the fading suppression effect.

[0059] Formulation Example 2: Outburst treatment (oil-in-water type) (Component) (mass%) 1 Mineral oil 5.0 2 Glyceryl tri-2-ethylhexanoate 2.0 3 Dimethicone (kinematic viscosity (25 °C) 10 mm 2 / s) 5.0 4 Phytosteryl macadamiate 0.005 5 Dicocodimonium chloride 0.1 6 Cetearyl alcohol 1.0 7 Behenyl alcohol 0.5 8 Phenoxyethanol 0.2 9 Steartrimonium chloride 0.5 10 Methylparaben 0.2 11 Sodium benzoate 0.1 12 Purified water balance 13 Ethanol 5.0

[0060] (Manufacturing method) A: Mix components (1) to (8) uniformly at 80 °C. B: Add components (9) to (11) to component (12) and mix uniformly at 80 °C. C: After mixing and emulsifying A and B, cool to room temperature. D: Add component (13) to C, mix uniformly, and then fill it into a dispenser container to obtain an outburst treatment.

[0061] The outburst treatment of Formulation Example 2 was evenly applied to dyed hair at about 0.1 g with reference to the methods described in Test Examples 1 and 2, and a fading inhibition test was conducted. As a result, the outburst treatment of Formulation Example 2 was excellent in the fading inhibition effect.

[0062] Formulation Example 3: Styling Cream (oil-in-water type) (Ingredients) (mass%) 1 Cetearyl alcohol 5.0 2 Behenyl alcohol 2.0 3 Dimethicone (kinematic viscosity (25°C) 10 mm 2 / s) 2.0 4 Dimer dilinoleyl diisostearate 0.005 5 Diisostearyl malate 0.005 6 PEG-10 hydrogenated castor oil 0.5 7 Dicocoyl ethyl hydroxyethyl monium methosulfate 0.2 8 Ethylhexyl methoxycinnamate 0.2 9 Behentrimonium chloride 0.2 10 Methylparaben 0.1 11 Purified water balance 12 Ethanol 10

[0063] (Manufacturing method) A: Mix ingredients (1) to (8) uniformly at 80°C. B: Add ingredients (9) to (10) to ingredient (11) and mix uniformly at 80°C. C: After mixing and emulsifying A and B, cool to room temperature. D: Add ingredient (12) to C, mix uniformly, and then fill into a tube container to obtain a styling cream.

[0064] The styling cream of Formulation Example 3 was evenly applied to dyed hair at about 0.1 g with reference to the methods described in Test Examples 1 and 2, and a fading inhibition test was conducted. As a result, the styling cream of Formulation Example 3 was excellent in the fading inhibition effect.

[0065] Formulation Example 4: Hair Oil (Ingredients) (mass%) 1 Dimethicone (kinematic viscosity (25°C) 10 mm 2 / s) 40 2 Dimethicone (kinematic viscosity (25°C) 100 mm 2 / s) 10 3 Dimethicone (kinematic viscosity (25°C) 1,000,000 mm 2 / s) 1 4 Dimethicone (kinematic viscosity (25°C) 10,000,000 mm 2 / s) 1 5 Dimethiconol 0.1 6 Hydrogenated polyisobutene (kinematic viscosity (98.9°C) 290 mm 2 / s) balance 7 Alkyl benzoate (C12-15) 5 8 Dialkyl carbonate (C14,15) 5 9 Fragrance 0.5 10 Ethylhexyl methoxycinnamate 0.2 11 Ethyl oleate 0.005 12 Isotridecyl isononanoate 0.005 13 Isononyl isononanoate 0.005 14 Jojoba seed oil 0.005

[0066] (Manufacturing method) A: Mix ingredients (1) to (5) uniformly. B: Mix ingredients (6) to (14) uniformly. C: Add A to B, mix uniformly, and then fill into a dispenser container to obtain the hair oil.

[0067] When approximately 0.1 g of the hair oil of Formulation Example 4 was evenly applied to dyed hair with reference to the methods described in Test Examples 1 and 2, and a fading inhibition test was conducted, the hair oil of Formulation Example 4 was found to have an excellent fading inhibition effect.

[0068] Formulation Example 5: Two-layer type hair oil (Ingredients) (mass%) 1. Hydrogenated polyisobutene 30 2. Dimethicone (kinematic viscosity (25°C) 6 mm 2 / s) 10 3. Phenyltrimethicone 1 4. Wasabi oil 0.005 5. Meadowfoam oil 0.005 6. Decyltetradecanol 0.005 7. Macadamia nut oil 0.005 8. Fragrance 1 9. Purified water balance 10. Ethanol 10 11. Citric acid 0.005 12. Sodium citrate 0.005

[0069] (Manufacturing method) A: Uniformly mix components (1) to (8). B: Uniformly mix components (9) to (12). C: Fill A and B into bottle containers respectively to obtain a two - layer hair oil.

[0070] The two - layer hair oil of Formulation Example 5 was thoroughly mixed, and about 0.1 g was evenly applied to dyed hair with reference to the methods described in Test Examples 1 and 2, and a fading suppression test was carried out. As a result, the two - layer hair oil of Formulation Example 5 was excellent in the fading suppression effect.

Industrial applicability

[0071] The present invention is useful as a composition for suppressing fading of dyed hair and a method for suppressing fading.

Claims

Claim 1 δd = 17.7 MPa ０．５ , δp = 8.8 MPa ０．５ , δh = 1.0 MPa ０．５ The distance Ra of the Hansen solubility parameter from ０．５ is Ra ≤ 12 MPa, and a composition for suppressing fading under high humidity conditions of dyed hair, containing an oil agent as an active ingredient. Claim 2 The δd in the Hansen solubility parameter of the oil agent satisfies δd ≧ 13 MPa ０．５ The composition for suppressing fading according to claim 1, wherein the composition satisfies the above condition. Claim 3 The δh in the Hansen solubility parameter of the oil agent satisfies δh ≦ 8 MPa ０．５ The composition for suppressing fading according to claim 1 or 2, wherein the composition is as defined above. Claim 4 The δp in the Hansen solubility parameter of the oil agent satisfies δp ≦ 8 MPa ０．５ The composition for suppressing fading according to claim 1 or 2, wherein the composition is as defined above. Claim 5 The composition for suppressing discoloration according to claim 1 or 2, wherein the oil agent is one or more selected from the group consisting of ester oil, higher alcohol, and hydrocarbon oil. Claim 6 The composition for suppressing discoloration according to claim 5, wherein the ester oil is one or more selected from the group consisting of triglyceride monoglyceride, salicylic acid derivative, dimer acid ester, dipentaerythritol fatty acid ester, fatty acid cholesteryl ester, fatty acid phytosteryl ester, polyglycerin fatty acid ester, and fatty acid ester having a branched structure or an unsaturated structure. Claim 7 The composition for suppressing discoloration according to claim 5, wherein the higher alcohol is liquid at 25°C. Claim 8 The composition for suppressing discoloration according to claim 5, wherein the hydrocarbon oil is mineral oil and / or hydrogenated polyisobutene. Claim 9 The composition for suppressing discoloration according to claim 1 or 2, which is for outboard use. Claim 10 δd = 17.7 MPa ０．５ 、δp = 8.8 MPa ０．５ 、δh = 1.0 MPa ０．５ The distance Ra of the Hansen solubility parameter from is Ra ≤ 12 MPa ０．５ A method for suppressing fading under high humidity conditions of dyed hair, which applies an oil agent with the above conditions to the dyed hair. Claim 11 The method for suppressing fading according to claim 10, wherein δd in the Hansen solubility parameter of the oil agent satisfies δd ≧ 13 MPa ０．５ ​

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