Multi-component hair treatment agent and hair treatment method

Abstract

The objective is to provide hair with excellent manageability after treatment in a multi-component hair treatment agent containing a component that includes amino-modified silicone. [Solution] A multi-component hair treatment agent comprising agent A, which contains a hydrocarbon and a higher alcohol that is liquid at 25°C, and agent B, which contains an amino-modified silicone, and a hair treatment method using the multi-component hair treatment agent. The hydrocarbon is preferably a hydrocarbon that is solid at 25°C, and the higher alcohol that is liquid at 25°C is, for example, a branched higher alcohol that is liquid at 25°C.

Description

Technical Field

[0001] The present invention relates to a multi-agent hair treatment agent and a hair treatment method using the multi-agent hair treatment agent.

Background Art

[0002] Hair treatment agents are selected according to the needs and preferences of each consumer, and various types are provided according to their uses and purposes. Examples of hair treatment agents include single-agent hair treatment agents used alone and multi-agent hair treatment agents containing a plurality of constituent agents.

[0003] Multi-agent hair treatment agents may be used for the purpose of further improving desired effects compared to single-agent hair treatment agents by using a plurality of constituent agents, or for the purpose of prolonging such effects. In addition, since multi-agent hair treatment agents use a plurality of constituent agents, the application time is longer and more laborious than that of single-agent hair treatment agents, but they have the advantage of improving the satisfaction of the subject with the treatment.

[0004] As an example of a multi-agent hair treatment agent, for example, Japanese Patent Application Laid-Open No. 2008-137995 (Patent Document 1) proposes a technique capable of uniformly imparting excellent smoothness from the root to the tip of hair by using a hair cosmetic containing Agent I containing a predetermined amount of a quaternary ammonium salt type cationic surfactant, an amino-modified silicone, a dialkyl ether, and water, and Agent II containing a predetermined amount of acids, polyhydric alcohols, and water.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] In multi-component hair treatment agents, various ingredients are blended depending on the desired effect, but as shown in Patent Document 1, some contain amino-modified silicone. Amino-modified silicone has high adsorption properties to hair and can exhibit good conditioning effects. Therefore, in multi-component hair treatment agents, attempts are being made to impart further conditioning effects to hair by combining ingredients containing amino-modified silicone with other ingredients.

[0007] However, in multi-component hair treatments, when a component containing amino-modified silicone is included, the amino-modified silicone can adhere to the hair excessively, resulting in poor manageability after treatment. This poor manageability tends to occur more frequently with higher concentrations of amino-modified silicone. Furthermore, this tendency was more pronounced in hair damaged by chemical treatments such as bleaching or perming.

[0008] In view of the above circumstances, the present invention aims to provide a multi-component hair treatment agent containing an amino-modified silicone component that imparts excellent manageability to the hair after treatment. [Means for solving the problem]

[0009] As a result of diligent research, the inventors have newly discovered that a multi-component hair treatment agent can be realized by combining agent A, which contains hydrocarbons and higher alcohols that are liquid at 25°C, with agent B, which contains amino-modified silicone, resulting in hair that is easy to comb after treatment. Based on this discovery, the inventors have completed the present invention.

[0010] The present invention includes the following inventions [1] to [7].

[0011] [1] The multi-component hair treatment agent is a multi-component hair treatment agent comprising agent A, which contains hydrocarbons and higher alcohols that are liquid at 25°C, and agent B, which contains amino-modified silicone.

[0012] The multi-component hair treatment agent of [2] is the multi-component hair treatment agent of [1], wherein the hydrocarbon is at least a hydrocarbon that is solid at 25°C.

[0013] The multi-component hair treatment agent [3] is selected from the multi-component hair treatment agents [1] to [2], and contains a branched higher alcohol that is liquid at 25°C as the higher alcohol that is liquid at 25°C.

[0014] The multi-component hair treatment agent [4] is selected from the multi-component hair treatment agents [1] to [3], wherein the amount of amino-modified silicone in agent B is 0.5% by mass or more.

[0015] The multi-component hair treatment agent [5] is selected from the multi-component hair treatment agents [1] to [4], and both agent A and agent B are in the form of a cream.

[0016] The multi-component hair treatment agent [6] is one of the multi-component hair treatment agents [1] to [5], and is used in which agent B is used after agent A is used.

[0017] The hair treatment method in [7] is a hair treatment method that uses one of the multi-component hair treatment agents selected from [1] to [6]. [Effects of the Invention]

[0018] The multi-component hair treatment agent according to the present invention provides a multi-component hair treatment agent that can impart excellent manageability to the hair after treatment. Furthermore, the hair treatment method according to the present invention provides a hair treatment method using the multi-component hair treatment agent. [Modes for carrying out the invention]

[0019] The present invention will be described below based on an embodiment of the present invention (hereinafter referred to as "this embodiment").

[0020] <Multi-component hair treatment agent> The multi-agent hair treatment agent of this embodiment includes Agent A containing a hydrocarbon and a higher alcohol that is liquid at 25°C, and Agent B containing an amino-modified silicone. Agent A and Agent B are constituent agents of the multi-agent hair treatment agent of this embodiment. The multi-agent hair treatment agent of this embodiment includes Agent B containing an amino-modified silicone, but by using it in combination with Agent A containing a hydrocarbon and a higher alcohol that is liquid at 25°C, excellent smoothness can be imparted to the hair after treatment.

[0021] The multi-agent hair treatment agent of this embodiment may be a two-agent hair treatment agent composed of the above-mentioned Agent A and Agent B, or may be a multi-agent hair treatment agent of three agents or more (for example, a three-agent hair treatment agent, a four-agent hair treatment agent) including one or two or more other constituent agents (constituent agents other than Agent A and Agent B) in addition to the above-mentioned Agent A and Agent B as constituent agents of the multi-agent hair treatment agent. The above-mentioned other constituent agents can be appropriately set to agents containing known components usable in hair treatment agents. Note that the multi-agent hair treatment agent of this embodiment may be, for example, different between Agent A and Agent B of this embodiment. Therefore, the multi-agent hair treatment agent of this embodiment may be, for example, except when Agent A and Agent B have the same composition content.

[0022] Also, the multi-agent hair treatment agent of this embodiment may be one using one or two or more pretreatment agents before using the multi-agent hair treatment agent, may use one or two or more post-treatment agents after using the multi-agent hair treatment agent, or may use both the above-mentioned one or two or more pretreatment agents and one or two or more post-treatment agents. The above-mentioned pretreatment agent and / or post-treatment agent can be appropriately set to agents containing known components usable in hair treatment agents.

[0023] 《Agent A》 The Agent A in the multi-agent hair treatment agent of this embodiment (hereinafter sometimes referred to as "Agent A of this embodiment") is a composition containing a hydrocarbon and a higher alcohol that is liquid at 25°C. In this specification, "liquid at 25°C" means showing fluidity at 25°C. Also, in this specification, "solid at 25°C" means not showing fluidity at 25°C, and includes solid, flaky, powdery, and paste-like forms.

[0024] (Hydrocarbon) Agent A of this embodiment is a composition containing one or more hydrocarbons. As the hydrocarbon, a hydrocarbon having 6 or more carbon atoms can be used. For example, a hydrocarbon that is solid at 25°C and a hydrocarbon that is liquid at 25°C can be mentioned.

[0025] Examples of the hydrocarbon that is solid at 25°C include petrolatum, microcrystalline wax, paraffin, ceresin, polyethylene, and an alkane that is solid at 25°C.

[0026] Examples of the hydrocarbon that is liquid at 25°C include liquid paraffin, liquid isoparaffin, light isoparaffin, light liquid isoparaffin, heavy liquid isoparaffin, squalane, squalene, olefin oligomer, polybutene, hydrogenated polybutene, hydrogenated polydecene, isododecane, tetradecane, isohexadecane, (C9-16) isoalkane, (C11-13) isoalkane, (C13,14) isoalkane, and an alkane that is liquid at 25°C ((C9-12) alkane, (C10-13) alkane, (C13,14) alkane, (C13-15) alkane, (C14-20) alkane, (C14-22) alkane, (C15-19) alkane, (C15-23) alkane, (C16-23) alkane, (C18-21) alkane, (C21-28) alkane, etc.).

[0027] In this embodiment, it is preferable that the hydrocarbon blended in agent A is a hydrocarbon that is solid at 25°C, from the viewpoint of providing the hair with a smoother feel after treatment. More preferably, the hydrocarbon blended in is petrolatum, from the viewpoint of providing the hair with a smoother feel after treatment while also providing excellent manageability of the hair ends.

[0028] The amount of hydrocarbons blended into agent A in this embodiment is not particularly limited and can be set as appropriate.

[0029] The amount of hydrocarbons blended in agent A of this embodiment is, for example, 0.1% by mass or more, but from the viewpoint of giving the hair a more moisturized feel after treatment, 0.2% by mass or more is preferred, and 0.3% by mass or more is more preferred.

[0030] The amount of hydrocarbons blended in agent A of this embodiment is, for example, 5% by mass or less as solid hydrocarbons at 25°C, but from the viewpoint of giving the treated hair a smoother feel, 3% by mass or less is preferred, and 1% by mass or less is more preferred.

[0031] The amount of hydrocarbons blended in agent A of this embodiment is, for example, 20% by mass or less as the amount of hydrocarbons that are liquid at 25°C, but from the viewpoint of giving hair a smoother feel, 15% by mass or less is preferred, and 10% by mass or less is more preferred.

[0032] The amount of hydrocarbons blended into agent A in this embodiment is, for example, 0.1% by mass or more and 5% by mass or less, as a range of hydrocarbons that are solid at 25°C. However, from the viewpoint described above, 0.2% by mass or more and 3% by mass or less is preferred, and 0.3% by mass or more and 1% by mass or less is more preferred.

[0033] The amount of hydrocarbons blended into agent A in this embodiment is, for example, 0.1% by mass or more and 20% by mass or less, as a range of the amount of hydrocarbons that are liquid at 25°C, but from the above viewpoint, 0.2% by mass or more and 15% by mass or less is preferred, and 0.3% by mass or more and 10% by mass or less is more preferred.

[0034] (Higher alcohols that are liquid at 25°C) Agent A of this embodiment is formulated with one or more higher alcohols that are liquid at 25°C. The higher alcohols that are liquid at 25°C can be monohydric alcohols that are liquid at 25°C and have 12 to 22 carbon atoms. Examples of higher alcohols that are liquid at 25°C include branched higher alcohols that are liquid at 25°C (e.g., hexyldecanol, isocetyl alcohol, isostearyl alcohol, octyldodecanol, decyltetradecanol) and unsaturated higher alcohols that are liquid at 25°C (e.g., oleyl alcohol, linoleyl alcohol). Agent A of this embodiment may also be formulated with branched higher alcohols that are liquid at 25°C as the higher alcohols that are liquid at 25°C.

[0035] The higher alcohol that is liquid at 25°C and is incorporated into agent A of this embodiment is preferably octyldodecanol, oleyl alcohol, or isostearyl alcohol, with octyldodecanol being more preferred, from the viewpoint of providing superior manageability of the hair after treatment.

[0036] The amount of higher alcohol that is liquid at 25°C and is incorporated into agent A of this embodiment is not particularly limited and can be set as appropriate.

[0037] The amount of higher alcohol that is liquid at 25°C and is incorporated into agent A of this embodiment is, for example, 0.01% by mass or more, but from the viewpoint of making the treated hair softer to the touch, 0.05% by mass or more is preferred, and 0.15% by mass or more is more preferred.

[0038] The amount of higher alcohol that is liquid at 25°C and incorporated into agent A of this embodiment is, for example, 5% by mass or less, but from the viewpoint of making the treated hair softer to the touch, 3% by mass or less is preferred, and 1% by mass or less is more preferred.

[0039] The amount of higher alcohol that is liquid at 25°C and is incorporated into agent A of this embodiment is, for example, 0.01% by mass or more and 5% by mass or less, but from the above viewpoint, 0.05% by mass or more and 3% by mass or less is preferred, and 0.15% by mass or more and 1% by mass or less is more preferred.

[0040] (Mass ratio of hydrocarbons to higher alcohols that are liquid at 25°C) In agent A of this embodiment, the mass ratio of the amount of hydrocarbon to the amount of higher alcohol that is liquid at 25°C can be set as appropriate, but for example, it is 0.02 or more and 100 or less.

[0041] (Optional components of Agent A) In this embodiment, Agent A may contain, in addition to the hydrocarbons and higher alcohols that are liquid at 25°C as described above, other components (referred to as "optional components of Agent A") as desired. The optional components of Agent A are appropriately selected from known components that can be incorporated into hair treatment agents, depending on the use and purpose of the multi-component hair treatment agent. Examples of optional components of Agent A include surfactants, higher alcohols (excluding higher alcohols that are liquid at 25°C), lower alcohols, polyhydric alcohols, sugars, polymers, ester oils, fats and oils, fatty acids, waxes, silicones, polymer compounds, amino acids, proteins, plant and animal extracts, microbial-derived products, inorganic compounds, fragrances, preservatives (e.g., phenoxyethanol), metal ion sequestering agents, and ultraviolet absorbers.

[0042] (cationic surfactant) Agent A in this embodiment may contain one or more cationic surfactants. The cationic surfactant may be a cationic surfactant having a hydrocarbon group with 8 to 28 carbon atoms.

[0043] Examples of cationic surfactants incorporated into agent A of this embodiment include mono-long-chain alkyltrimethylammonium salts, di-long-chain alkyldimethylammonium salts, tri-long-chain alkylmonomethylammonium salts, benzalkonium-type quaternary ammonium salts, mono-alkyl ether-type quaternary ammonium salts, mono-alkylamide-type quaternary ammonium salts, fatty acid ester amine salts, fatty acid amide amine salts, and urea condensed amine salt-type tertiary amine salts (Arcobel-type tertiary amine salts). Note that the above-mentioned "long-chain alkyl" may be an alkyl group having 12 to 28 carbon atoms.

[0044] Examples of the mono-long-chain alkyltrimethylammonium salts include lauryltrimethylammonium salt, cetyltrimethylammonium salt, stearyltrimethylammonium salt, and behenyltrimethylammonium salt. Examples of the aforementioned mono-long-chain alkyltrimethylammonium salts, as listed in cosmetic ingredient labels, include lauryltrimonium chloride, lauryltrimonium bromide, myrtrimonium bromide, cocotrimonium chloride, cocotrimonium methosulfate, cetrimonium chloride, cetrimonium bromide, cetrimonium methosulfate, cetrimonium saccharin, steartrimonium chloride, steartrimonium bromide, steartrimonium methosulfate, stearyltrimonium saccharin, ceteartrimonium chloride, behentrimonium chloride, behentrimonium methosulfate, alkyl(C16,18)trimonium chloride, alkyl(C28)trimonium chloride, octacosatrimonium chloride, and soytrimonium chloride. Examples of the dilong-chain alkyldimethylammonium salts include dicetyldimethylammonium chloride, distearyldimethylammonium chloride, and dialkyl(C12-18)dimethylammonium chloride. Examples of the fatty acid amidoamines include dimethylaminopropyl palmitate, dimethylaminopropyl stearate (cosmetic ingredient name: stearamidopropyldimethylamine), and dimethylaminopropyl behenate (cosmetic ingredient name: behenamidopropyldimethylamine).

[0045] When a cationic surfactant is added to agent A in this embodiment, the amount added is not particularly limited and can be set as appropriate, but for example, it is 0.1% by mass or more and 10% by mass or less.

[0046] (A higher alcohol that is solid at 25°C) Agent A of this embodiment may contain one or more higher alcohols that are solid at 25°C. As the higher alcohols that are solid at 25°C, monohydric alcohols that are solid at 25°C and have 12 to 24 carbon atoms can be used.

[0047] Examples of solid higher alcohols at 25°C that are incorporated into agent A of this embodiment include myristyl alcohol, cetanol, stearyl alcohol, and behenyl alcohol.

[0048] When a higher alcohol that is solid at 25°C is added to agent A of this embodiment, the amount added is not particularly limited and can be set as appropriate, but for example, it is 0.1% by mass or more and 15% by mass or less.

[0049] (water) Agent A in this embodiment may contain water. The amount of water is not particularly limited and can be set as appropriate, but for example, it is 60% by mass or more and 95% by mass or less.

[0050] (Dosage form of drug A) The dosage form of Agent A in this embodiment is not particularly limited and can be various forms such as liquid, emulsion, cream, gel, lotion, spray, or foam. Agent A in this embodiment may be a cream in order to facilitate application to the hair.

[0051] Agent A in this embodiment may, for example, contain a cationic surfactant, a higher alcohol that is solid at 25°C, and water, and may be in the form of a cream.

[0052] (Viscosity of agent A) The viscosity of agent A in this embodiment can be set appropriately depending on the dosage form of agent A. The viscosity of agent A is not particularly limited, but for example, when agent A at 25°C is measured with a type B viscometer, it is between 1 mPa·s and 100,000 mPa·s. When measuring with a type B viscometer using an appropriate rotor, the value obtained 60 seconds after the start of measurement should be adopted.

[0053] (pH of agent A) The pH of agent A in this embodiment may be set appropriately depending on the dosage form of agent A. The pH of agent A is not particularly limited, but for example, it is between 3 and 9. The above pH value refers to the measurement value obtained at 25°C using a known pH meter.

[0054] (Manufacturing method for Agent A) Agent A of this embodiment may be manufactured using a known method for manufacturing hair treatment agents, depending on the dosage form and other components.

[0055] 《Agent B》 In this embodiment, the B component of the multi-component hair treatment agent (hereinafter referred to as "the B component of this embodiment") contains amino-modified silicone.

[0056] (Amino-modified silicone) Agent B of this embodiment is formulated with one or more amino-modified silicones. Amino-modified silicones are silicones in which amino groups are bonded to the silicone skeleton directly or via substituents.

[0057] Examples of amino-modified silicones incorporated into agent B of this embodiment include aminoethylaminopropylmethylsiloxane / dimethylsiloxane copolymer ((aminoethylaminopropylmethicone / dimethicone) copolymer), aminopropyldimethicone (aminopropylmethylsiloxane / dimethylsiloxane copolymer), aminopolyether-modified silicone, aminoglycol-modified silicone, acrylic-amino-modified silicone, and aminophenyl-modified silicone.

[0058] Examples of amino-modified silicones incorporated into agent B of this embodiment include, as cosmetic ingredient names, amodimethicone, aminoethylaminopropyl dimethicone, (aminoethylaminopropyl methicone / dimethicone) copolymer, diphenylamodimethicone, trimethylsilylamodimethicone, trimethylsiloxyamodimethicone, bis(hydroxy / methoxy)amodimethicone, bis(hydroxy / methoxy / methyl)amodimethicone crosspolymer, bisaminopropyl dimethicone, bisalkyl(C30-45)amodimethicone, biscetearylamodimethicone, (amodimethicone / silsesquioxane) copolymer, (amodimethicone / morpholinomethylsilsesquioxane) copolymer, (bisaminopropyl dimethicone / IPDI) copolymer, and (methoxyamodimethicone / silsesquioxane) copolymer.

[0059] The amino-modified silicone incorporated into agent B of this embodiment has, for example, an amino content (nitrogen content in the amino-modified silicone) of 0.1% by mass or more and 3.0% by mass or less, but from the viewpoint of further enhancing the conditioning effect on the hair after treatment, 0.4% by mass or more is preferred.

[0060] The amino-modified silicone incorporated into agent B of this embodiment may have a kinematic viscosity of 50 mm at 25°C, for example. 2 / s or more 50000000mm 2 Materials with a viscosity of / s or less may be used. The kinematic viscosity at 25°C is the value measured at 25°C in accordance with the 2021 Standards for Quasi-Drug Raw Materials, General Test Methods, Viscosity Measurement Method No. 1.

[0061] The amount of amino-modified silicone incorporated into agent B of this embodiment is not particularly limited and can be set as appropriate.

[0062] The amount of amino-modified silicone incorporated into agent B of this embodiment is, for example, 0.1% by mass or more, but from the viewpoint of further enhancing the conditioning effect on the hair after treatment, 0.5% by mass or more is preferred, 1% by mass or more is more preferred, 1.5% by mass or more is even more preferred, 2% by mass or more is even more preferred, and 4% by mass or more is particularly preferred.

[0063] The amount of amino-modified silicone incorporated into agent B of this embodiment is, for example, 15% by mass or less, but from the viewpoint of providing the hair after treatment with a better feel, 10% by mass or less is preferred.

[0064] The amount of amino-modified silicone incorporated into agent B of this embodiment is, for example, 0.1% by mass or more and 15% by mass or less, but from the viewpoint described above, 0.5% by mass or more and 10% by mass or less is preferred, 1% by mass or more and 10% by mass or less is more preferred, 1.5% by mass or more and 10% by mass or less is even more preferred, 2% by mass or more and 10% by mass or less is even more preferred, and 4% by mass or more and 10% by mass or less is particularly preferred.

[0065] (Optional components of Agent B) In this embodiment, Agent B may contain other components (referred to as "optional components of Agent B") in addition to the amino-modified silicone described above. The optional components of Agent B are appropriately selected from known components that can be incorporated into hair treatment agents, depending on the application and purpose of the multi-component hair treatment agent. Examples of optional components of Agent B include surfactants, higher alcohols, lower alcohols, polyhydric alcohols, sugars, ester oils, fats and oils, fatty acids, hydrocarbons, waxes, silicones (excluding amino-modified silicones), polymer compounds, amino acids, proteins, plant and animal extracts, microbial-derived products, inorganic compounds, fragrances, preservatives (e.g., phenoxyethanol), metal ion sequestering agents, and ultraviolet absorbers.

[0066] (cationic surfactant) Agent B of this embodiment may contain one or more cationic surfactants. The cationic surfactant can be the same as that used in Agent A. When a cationic surfactant is included in Agent B of this embodiment, the amount is not particularly limited and can be set as appropriate, but for example, it is 0.1% by mass or more and 10% by mass or less.

[0067] (A higher alcohol that is solid at 25°C) The B component of this embodiment may contain one or more higher alcohols that are solid at 25°C. The higher alcohols that are solid at 25°C are the same as those described above for the A component. When a higher alcohol that is solid at 25°C is added to the B component of this embodiment, the amount added is not particularly limited and can be set as appropriate, but for example, it is 0.1% by mass or more and 15% by mass or less.

[0068] (water) Agent B in this embodiment may contain water. The amount of water is not particularly limited and can be set as appropriate, but for example, it is 60% by mass or more and 95% by mass or less.

[0069] (Dosage form of drug B) The dosage form of Agent B in this embodiment is not particularly limited and can be various forms such as liquid, emulsion, cream, gel, lotion, spray, or foam. Agent B in this embodiment may be a cream in order to facilitate application to the hair.

[0070] Agent B of this embodiment may, for example, contain a cationic surfactant, a higher alcohol that is solid at 25°C, and water, and may be in the form of a cream.

[0071] (Viscosity of component B) The viscosity of agent B in this embodiment can be set appropriately according to the dosage form of agent B. The viscosity of agent B is not particularly limited, but for example, when agent A at 25°C is measured with a type B viscometer, it is between 2000 mPa·s and 100000 mPa·s. When measuring with a type B viscometer using an appropriate rotor, the value obtained 60 seconds after the start of measurement should be adopted.

[0072] (pH of agent B) The pH of agent B in this embodiment may be set appropriately depending on the dosage form of agent B. The pH of agent B is not particularly limited, but for example, it is between 3 and 9. The above pH values ​​refer to the measured values ​​obtained at 25°C using a known pH meter.

[0073] (Manufacturing method for agent B) Agent B of this embodiment may be manufactured using a known method for manufacturing hair treatment agents, depending on the dosage form and other components.

[0074] (How to use) The method of using the multi-component hair treatment agent of this embodiment can adopt known methods of use for multi-component hair treatment agents. For example, it can be used by applying appropriate amounts of agent A and agent B to the hair by means of application.

[0075] The multi-component hair treatment agent of this embodiment may be, for example, a multi-component hair treatment agent in which agent B is used after agent A. Alternatively, in the multi-component hair treatment agent of this embodiment, which is a multi-component hair treatment agent in which agent B is used after agent A, agent B may be used immediately after agent A without using another component between agent A and agent B.

[0076] The multi-component hair treatment agent of this embodiment may be used in a manner in which both agent A and agent B are rinsed off after use, or in a manner in which neither agent A nor agent B is rinsed off after use, or in a manner in which one of agent A or agent B is not rinsed off after use and the other is rinsed off after use. However, from the viewpoint of having excellent non-stickiness of the hair after treatment, it is preferable to use either agent A or agent B and not rinse it off after use, or to use either agent A or agent B and rinse it off after use.

[0077] If the multi-component hair treatment agent of this embodiment is a multi-component hair treatment agent of three or more components, including one or more other components in addition to components A and B, then, for example, one may use component B after using component A, and one or more other components may be used before using component A or after using component B.

[0078] Furthermore, each component may or may not be rinsed off after use. From the viewpoint of ensuring that the hair is not sticky after treatment, it is preferable to rinse off the component used last in a multi-component hair treatment agent (for example, component B, or another component).

[0079] (Application) The use of the multi-component hair treatment agent of this embodiment is not particularly limited as long as it is for hair use. Examples of multi-component hair treatment agents used on hair and / or scalp include multi-component hair care agents and multi-component styling agents.

[0080] The multi-component hair care products described above are used for hair care and treatment. These multi-component hair care products may include multi-component hair treatments, or multi-component hair care products for pre-treatment or post-treatment of perms, coloring, or bleaching.

[0081] Examples of multi-component hair care products include combinations of one or more types of hair treatments (including rinse-off hair treatments, hair conditioners, hair packs, hair masks, and styling treatments) and leave-in hair treatments (including styling leave-on treatments) as components A and B (if other components are included in addition to components A and B, these other components are arbitrarily selected from the above group). Examples of component A and B in a multi-component hair care product include the following combinations. Both Agent A and Agent B are rinse-off hair treatments. • Agent A is a rinse-off hair treatment, and Agent B is a leave-in hair treatment. • Agent A is a leave-in hair treatment, and Agent B is a rinse-off hair treatment. Both Agent A and Agent B are leave-in hair treatments.

[0082] The multi-component styling products described above are used to temporarily hold a hairstyle in place. Examples of multi-component styling products include a combination of one or more formulations of A and B selected from the following types: hair spray, hair mist, mousse, foam, hair gel, setting lotion, hair cream, and hair wax (if other components are included in addition to A and B, these other components may be arbitrarily selected from the above formulations).

[0083] (Target hair) The hair to which the multi-component hair treatment agent of this embodiment can be used is not particularly limited and may include hair with a history of chemical treatment (e.g., perming, coloring, or bleaching) and hair without such a history. Although the multi-component hair treatment agent of this embodiment contains agent B which contains amino-modified silicone, it can also be used on hair damaged by chemical treatments such as bleaching to provide excellent manageability to the hair after treatment.

[0084] <Hair Treatment Methods> The hair treatment method of this embodiment is a method of treating hair using the multi-component hair treatment agent of this embodiment. The hair treatment method of this embodiment may be used for cosmetic purposes.

[0085] As for the hair treatment method of this embodiment, in addition to using the multi-component hair treatment agent of this embodiment, any known method of using a multi-component hair treatment agent may be adopted. For example, the method of using the multi-component hair treatment agent of this embodiment described above may be used. [Examples]

[0086] The present invention will be described in detail below based on examples, but the present invention should not be interpreted as being limited based on the description of these examples.

[0087] (Preparation of Agent A and Agent B in the multi-component hair treatment agents of Examples 1-6 and Comparative Examples 1-8) In Examples 1-6 and Comparative Examples 1-8, each A agent and each B agent were prepared by mixing components selected from the following list of ingredients using a conventional method to achieve the compositions shown in Tables 1-6. The appearance of each A agent and each B agent in Examples 1-6 and Comparative Examples 1-8 after preparation was creamy.

[0088] (Ingredients used) · Hydrocarbons Vaseline, microcrystalline wax, liquid paraffin • Higher alcohols that are liquid at 25°C Octyldodecanol, oleyl alcohol, isostearyl alcohol • Amino-modified silicone Amodimethicone Other ingredients Lanolin, hexa(hydroxystearate / stearate / rosinate)dipentaerythrityl, bis-diglyceryl polyacyladipate-2, behenyltrimethylammonium chloride, isopropanol, "mixture of distearyldimethylammonium chloride (75% by mass), isopropanol, and purified water", cetanol, olive oil, phenoxyethanol, purified water

[0089] Note that the values ​​in the ingredient columns for Agent A and Agent B in Tables 1 to 6 are in mass percent, and "-" indicates that the ingredient is not included. Furthermore, the breakdown of "Common Ingredient (1)" and "Common Ingredient (2)" in the ingredient columns of Tables 1 to 6 is as follows. Common component (1): Behenyltrimethylammonium chloride 2% by mass, isopropanol 0.5% by mass, "mixture of distearyldimethylammonium chloride (75% by mass), isopropanol, and purified water" 0.2% by mass, cetanol 6% by mass, phenoxyethanol 0.5% by mass Common component (2): Behenyltrimethylammonium chloride 2.2% by mass, isopropanol 0.5% by mass, cetanol 7% by mass, phenoxyethanol 0.5% by mass

[0090] (Evaluation of multi-component hair treatment agents in Examples 1-6 and Comparative Examples 1-8) Using the A and B agents prepared in Examples 1-6 and Comparative Examples 1-8 described above, the following hair treatments and evaluations were performed.

[0091] (Hair treatment and evaluation) Black hair samples taken from the same Japanese woman were bleached by immersing them for 2 hours in an aqueous solution of 6% by mass hydrogen peroxide and 25% ammonia water adjusted to pH 11. After bleaching, the hair was rinsed with running water and dried with a hairdryer. Using the dried hair after bleaching, multiple hair bundles (each bundle consisting of human hair approximately 20 cm long, weighing approximately 5 g) were created. The created hair bundles were rinsed with water, washed with a 27% by mass sodium laureth sulfate aqueous solution, and then rinsed with water. Next, 1 g of each A agent from the multi-component hair treatment agents of Examples 1-6 and Comparative Examples 1-8 was taken into the hand and applied to each hair bundle, and massaged in for about 10 seconds to distribute evenly throughout the hair bundle. Next, 1g of each component B from the multi-component hair treatment agents of Examples 1-6 and Comparative Examples 1-8 was taken into the hand and applied to each hair strand that had not been rinsed after applying component A. The component was then massaged in for about 10 seconds to distribute evenly throughout the hair strand, and then rinsed with running water. The hair strands that had been rinsed with water were then dried using a hairdryer. The hair strands after treatment were then evaluated for "non-stickiness," "manageability of the ends," and "smoothness of the hair." The evaluation was carried out by five evaluators who routinely evaluate hair treatment agents.

[0092] For each of the evaluation items above—"non-stickiness," "hair end manageability," and "smoothness"—each evaluator compared the results to hair strands treated with a standard multi-component hair treatment. The evaluation results for each item were then obtained based on the following evaluation criteria.

[0093] (Non-sticky) Good: The hair is less sticky after treatment than the standard (compared to the standard, the hair feels less sticky when touched after treatment). Equivalent: The stickiness of the hair after treatment is at the same level as the standard (the sticky feeling when touching the treated hair with your hand is at the same level as the standard). Poor: The hair feels stickier after treatment than the standard (compared to the standard, the hair feels much stickier when touched after treatment).

[0094] (Hair ends stay together) Good: The ends of the hair are more manageable after treatment than the standard (compared to the standard, the hair bundles are more manageable from the ends up about 10cm from the ends). Equivalent: The manageability of the hair ends after treatment is comparable to the standard (in the treated hair bundle, the manageability of the hair bundle approximately 10 cm from the ends is comparable to the standard). Poor: The hair ends are less manageable after treatment than the standard (compared to the standard, the hair bundles after treatment are not manageable for approximately 10 cm from the ends).

[0095] (Finger grip) Good: The hair feels smoother to the touch after treatment than the standard (compared to the standard, the hair strands feel smoother and easier to comb through after treatment). Equivalent: The smoothness of the hair after treatment is comparable to the standard (the smoothness of the hair strands when fingers are passed through them after treatment is comparable to the standard, and the overall smoothness of the hair is comparable to the standard). Poor: The hair feels less smooth to the touch after treatment than the standard (compared to the standard, the hair strands after treatment are less slippery and feel very rough to the touch).

[0096] (Evaluation criteria for each evaluation item) ○: Three or more evaluators gave it a good rating. Equivalent: Three or more evaluators rated it as equivalent, or two evaluators rated it as equivalent, one or more rated it as good, one or more rated it as bad, or one evaluator rated it as equivalent, two rated it as good, and two rated it as bad. ×: Three or more evaluators gave it a bad rating.

[0097] (Evaluation results) The evaluation results for Examples 1-6 and Comparative Examples 1-8 are shown in Tables 1-6 below.

[0098] (Evaluation results for Example 1 and Comparative Examples 1-2) Table 1 below shows the evaluation results for the multi-component hair treatment agents of Example 1 and Comparative Examples 1 and 2. In this evaluation, the multi-component hair treatment agent of Comparative Example 1 was used as the standard for evaluation.

[0099] [Table 1]

[0100] As shown in Table 1, the hair bundles treated with the multi-component hair treatment agent of Example 1 exhibited superior manageability, non-stickiness, and smoother ends compared to the hair bundles treated with the multi-component hair treatment agents of Comparative Examples 1 and 2. Note that the multi-component hair treatment agent of Example 1a contains petrolatum (hydrocarbon) and octyldodecanol (a higher alcohol that is liquid at 25°C) in component A, while the multi-component hair treatment agents of Comparative Examples 1 and 2 lack either petrolatum or octyldodecanol in component A. Furthermore, the multi-component hair treatment agents of Example 1 and Comparative Examples 1 and 2 all share component B (containing 3.0% by mass of amino-modified silicone). Therefore, it can be seen that a multi-component hair treatment agent, which combines agent A, which contains hydrocarbons and higher alcohols that are liquid at 25°C, with agent B, which contains amino-modified silicone, can impart excellent manageability to the hair after treatment.

[0101] (Evaluation results for Example 2 and Comparative Examples 3-4) Table 2 below shows the evaluation results for the multi-component hair treatment agents of Example 2 and Comparative Examples 3-4. In this evaluation, the multi-component hair treatment agent of Comparative Example 3 was used as the standard for evaluation.

[0102] [Table 2]

[0103] As shown in Table 2, the hair bundles treated with the multi-component hair treatment agent of Example 2 exhibited superior manageability, non-greasy texture, and smoother ends compared to the hair bundles treated with the multi-component hair treatment agents of Comparative Examples 3 and 4. Note that the multi-component hair treatment agent of Example 2 contains petrolatum (hydrocarbon) and octyldodecanol (a higher alcohol that is liquid at 25°C) in component A, while the multi-component hair treatment agents of Comparative Examples 3 and 4 lack either petrolatum or octyldodecanol in component A. Furthermore, the multi-component hair treatment agents of Example 3 and Comparative Examples 3 and 4 all share component B (containing 5.0% by mass of amino-modified silicone). Therefore, it can be seen that a multi-component hair treatment agent, which combines agent A, which contains hydrocarbons and higher alcohols that are liquid at 25°C, with agent B, which contains amino-modified silicone, can also provide excellent manageability to the hair after treatment.

[0104] Furthermore, in Example 1, shown in Tables 1 and 2, the multi-component hair treatment agent contains 3.0% by mass of amino-modified silicone in component B, and in Example 2, the multi-component hair treatment agent contains 5.0% by mass of amino-modified silicone in component B. However, compared to the respective evaluation criteria, both were able to impart excellent manageability to the hair after treatment. Therefore, it can be seen that a multi-component hair treatment agent combining component A, which contains hydrocarbons and higher alcohols that are liquid at 25°C, and component B, which contains amino-modified silicone, can impart excellent manageability to the hair after treatment, even in a multi-component hair treatment agent containing a relatively high concentration of amino-modified silicone.

[0105] (Evaluation results for Examples 2-4 and Comparative Example 3) Table 3 below shows the evaluation results for the multi-component hair treatment agents of Examples 2-4 and Comparative Example 3. In this evaluation, the multi-component hair treatment agent of Comparative Example 3 was used as the standard. For the evaluation of hair manageability, in addition to the multi-component hair treatment agent of Comparative Example 3, the multi-component hair treatment agent of Example 4 was also used as the standard.

[0106] [Table 3]

[0107] As shown in Table 3, the hair bundles treated with the multi-component hair treatment agents of Examples 2-4 (containing either petrolatum, microcrystalline wax, or liquid paraffin as part A) exhibited superior manageability and non-greasy feel compared to the hair bundles treated with the multi-component hair treatment agent of Comparative Example 3 (without hydrocarbons in part A). Furthermore, the hair bundles treated with the multi-component hair treatment agents of Examples 2-3 (containing petrolatum or microcrystalline wax (a hydrocarbon solid at 25°C) as part A) exhibited even superior manageability compared to the hair bundles treated with the multi-component hair treatment agent of Example 4 (containing liquid paraffin (a hydrocarbon liquid at 25°C) as part A). Furthermore, hair strands treated with the multi-component hair treatment agent of Example 2 (containing petrolatum as a hydrocarbon in agent A) showed even better manageability and smoother hair ends compared to hair strands treated with the multi-component hair treatment agent of Example 3 (containing microcrystalline wax as a hydrocarbon in agent A). Therefore, a multi-component hair treatment agent combining agent A, which contains hydrocarbons and higher alcohols that are liquid at 25°C, and agent B, which contains amino-modified silicone, can provide excellent manageability to hair after treatment, even in a multi-component hair treatment agent containing amino-modified silicone. Moreover, it is found that hydrocarbons that are solid at 25°C are preferred as the hydrocarbons to be included in agent A, and petrolatum is more preferred as a hydrocarbon that is solid at 25°C.

[0108] (Evaluation results for Comparative Example 3, Comparative Examples 5-7) Table 4 below shows the evaluation results for the multi-component hair treatment agents of Comparative Example 3 and Comparative Examples 5-7. In this evaluation, the multi-component hair treatment agent of Comparative Example 3 was used as the standard for evaluation.

[0109] [Table 4]

[0110] As shown in Table 4, the hair bundles treated with the multi-component hair treatment agents of Comparative Examples 5-7 (containing esters or waxes instead of hydrocarbons in agent A) showed similar levels of manageability, non-greasy feel, and manageability of the ends compared to the hair bundles treated with the multi-component hair treatment agent of Comparative Example 3 (without hydrocarbons, esters, or waxes in agent A).

[0111] Furthermore, as shown in Tables 3 and 4, compared to the standard comparative example 3 (which did not contain hydrocarbons in agent A), the multi-component hair treatment agents of Examples 2-4 shown in Table 3 (which contained hydrocarbons and liquid higher alcohols at 25°C in agent A) provided superior manageability to the hair after treatment. However, the multi-component hair treatment agents of Comparative Examples 5-7 shown in Table 4 (which contained esters or waxes instead of hydrocarbons in agent A) provided hair manageability equivalent to the standard after treatment. Therefore, it can be seen that using agent A containing hydrocarbons and liquid higher alcohols at 25°C in a multi-component hair treatment agent containing amino-modified silicone can provide superior manageability to the hair after treatment.

[0112] (Evaluation results for Example 2, Examples 5-6, and Comparative Examples 3-4) Table 5 below shows the evaluation results for the multi-component hair treatment agents of Example 2, Examples 5-6, and Comparative Examples 3-4. In this evaluation, the multi-component hair treatment agent of Comparative Example 3 was used as the standard. For the evaluation of hair manageability, in addition to the multi-component hair treatment agent of Comparative Example 3, the multi-component hair treatment agent of Example 6 was also used as the standard.

[0113] [Table 5]

[0114] As shown in Table 5, the hair bundles treated with the multi-component hair treatment agents of Examples 2 and 5-6 (containing hydrocarbons and higher alcohols that are liquid at 25°C in agent A) showed superior manageability and non-stickiness compared to the hair bundles treated with the multi-component hair treatment agent of Comparative Example 4 (without higher alcohols that are liquid at 25°C in agent A) or the multi-component hair treatment agent of Comparative Example 3 (without hydrocarbons in agent A). Furthermore, the hair bundles treated with the multi-component hair treatment agent of Example 2 (containing octyldodecanol as a higher alcohol that is liquid at 25°C in agent A) showed even greater manageability and smoother hair ends compared to the hair bundles treated with the multi-component hair treatment agents of Examples 5-6 (containing oleyl alcohol or isostearyl alcohol as a higher alcohol that is liquid at 25°C in agent A). Therefore, a multi-component hair treatment agent combining agent A, which contains hydrocarbons and a higher alcohol that is liquid at 25°C, and agent B, which contains amino-modified silicone, can provide excellent manageability to the hair after treatment, even in a multi-component hair treatment agent containing an amino-modified silicone component. Furthermore, it is found that octyldodecanol is preferred as the higher alcohol that is liquid at 25°C to be incorporated into agent A.

[0115] (Evaluation results for Comparative Examples 3 and 8) Table 6 below shows the evaluation results for the multi-component hair treatment agents of Comparative Examples 3 and 8. In this evaluation, the multi-component hair treatment agent of Comparative Example 3 was used as the standard for evaluation.

[0116] [Table 6]

[0117] As shown in Table 6, the hair strands treated with the multi-component hair treatment agent of Comparative Example 8 (in which olive oil was added to agent A instead of a higher alcohol that is liquid at 25°C) had comparable manageability to those treated with the multi-component hair treatment agent of Comparative Example 3 (in which hydrocarbons were not added to agent A).

[0118] Furthermore, as shown in Tables 5 and 6, compared to the standard comparative example 3 (which did not contain hydrocarbons in agent A), the multi-component hair treatment agents of Examples 2 and 5-6 (which contained hydrocarbons and liquid higher alcohols at 25°C in agent A) in Table 5 provided superior manageability to the hair after treatment. However, the multi-component hair treatment agent of Comparative Example 5 (which contained hydrocarbons in agent A and olive oil instead of liquid higher alcohols at 25°C) in Table 6 provided hair manageability equivalent to the standard after treatment. Therefore, it can be seen that using agent A containing hydrocarbons and liquid higher alcohols at 25°C in a multi-component hair treatment agent containing amino-modified silicone can provide superior manageability to the hair after treatment.

Claims

1. Agent A contains hydrocarbons and higher alcohols that are liquid at 25°C, Agent B, which contains amino-modified silicone, A multi-component hair treatment agent containing [specific ingredient / method].

2. The multi-component hair treatment agent according to claim 1, wherein the hydrocarbon is at least a hydrocarbon that is solid at 25°C.

3. The multi-component hair treatment agent according to claim 1 or claim 2, wherein the aforementioned higher alcohol that is liquid at 25°C is a branched higher alcohol that is liquid at 25°C.

4. The multi-component hair treatment agent according to claim 1 or claim 2, wherein the amount of amino-modified silicone in agent B is 0.5% by mass or more.

5. A multi-component hair treatment agent according to claim 1 or claim 2, wherein both agent A and agent B are in the form of a cream.

6. A multi-component hair treatment agent according to claim 1 or claim 2, wherein agent B is used after agent A is used.

7. A hair treatment method using the multi-component hair treatment agent described in claim 1 or claim 2.

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