Multi-agent hair treatment and hair treatment method

Abstract

To provide a combinational hair treatment agent that keeps well the functions of hydrolyzed keratin as a hair repair component and / or a derivative thereof, and a hair treatment method using the treatment agent.SOLUTION: A combinational hair treatment agent has a pre-treatment agent containing hydrolyzed protein and / or a derivative thereof, and a post-treatment agent containing a (chlorophyllin / copper) complex and / or a (chlorophyllin / iron) complex. A hair treatment method uses the combinational hair treatment agent.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a multi-component hair treatment composition comprising a pre-treatment agent and a post-treatment agent, and a hair treatment method using this multi-component hair treatment composition. [Background technology]

[0002] Hydrolyzed proteins such as hydrolyzed keratin and hydrolyzed silk, and hydrolyzed protein derivatives such as hydroxypropyltrimonium hydrolyzed keratin and hydroxypropyltrimonium hydrolyzed silk are known as ingredients for repairing hair. Proposals have been made to make these ingredients function as repair ingredients, and for example, Patent Document 1 discloses a multi-agent hair treatment that includes a pre-treatment agent containing tannic acid and a post-treatment agent containing hydrolyzed keratin or a hydrolyzed keratin derivative. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-14182 A

[0004] However, it is desirable for the function of the repair component to last, and a proposal that can achieve this lasting effect is desirable. Summary of the Invention [Problem to be solved by the invention]

[0005] In view of the above circumstances, the present invention aims to provide a multi-component hair treatment agent that has excellent durability of the function of the hair repair ingredient, hydrolyzed protein and / or its derivatives, and a hair treatment method that uses said treatment agent. [Means for solving the problem]

[0006] The multi-agent hair treatment composition of the present invention is characterized by comprising a pre-treatment agent containing a hydrolyzed protein and / or a derivative thereof, and a post-treatment agent containing a chlorophyllin / copper complex and / or a chlorophyllin / iron complex.

[0007] The number average molecular weight of the hydrolyzed protein and / or its derivatives in the pretreatment agent of the multi-component hair treatment composition according to the present invention is preferably not more than 10,000. Since the smaller the number average molecular weight of the hydrolyzed protein etc., the more easily the hydrolyzed protein and its derivatives penetrate into the inside of the hair, the number average molecular weight of the hydrolyzed protein and / or its derivatives is preferably not more than 10,000.

[0008] The pre-treatment agent and post-treatment agent according to the present invention are preferably in liquid form, which allows the pre-treatment agent and post-treatment agent to penetrate easily into the interior of the hair and provide excellent repair of the interior of the hair.

[0009] The hair treatment method according to the present invention uses the multi-component hair treatment composition according to the present invention. Effect of the Invention

[0010] According to the multi-component hair treatment composition of the present invention, the chlorophyllin / copper complex and / or chlorophyllin / iron complex contained in the post-treatment composition enhances the fixation on the hair of the hydrolyzed protein and / or its derivatives contained in the pre-treatment composition, thereby enabling highly sustained hair repair.

[0011] Furthermore, according to the hair treatment method of the present invention, a pre-treatment agent containing hydrolyzed protein and / or its derivatives is applied to the hair, and then a post-treatment agent containing a chlorophyllin / copper complex and / or a chlorophyllin / iron complex is applied to the hair, thereby enabling highly lasting hair repair. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] The present invention will be described below based on the embodiments of the present invention. The multi-component hair treatment composition according to this embodiment comprises a pre-treatment agent to be applied to hair and a post-treatment agent to be applied to hair after the pre-treatment agent has been applied. In addition to the pre-treatment agent and the post-treatment agent, the multi-component hair treatment composition may also comprise a treatment agent to be applied to hair before use of the pre-treatment agent, a treatment agent to be applied to hair between use of the pre-treatment agent and the post-treatment agent, or a treatment agent to be applied to hair after use of the post-treatment agent.

[0013] (Pretreatment agent) The pretreatment agent of the present embodiment is a mixture of hydrolyzed protein, hydrolyzed protein derivative, or hydrolyzed protein and hydrolyzed protein derivative, and water (the amount of water is, for example, 70% by mass or more). In addition, components contained in known hair treatment agents may be contained as optional components.

[0014] The hydrolyzed protein is blended as a hair repair component, and is selected from one or more known hydrolyzed proteins.The hydrolyzed protein can be, for example, hydrolyzed keratin, hydrolyzed silk, hydrolyzed collagen, hydrolyzed soybean protein, hydrolyzed almond protein, hydrolyzed casein, hydrolyzed oat protein, hydrolyzed yeast protein, hydrolyzed conchiolin, hydrolyzed white lupin protein, hydrolyzed corn protein, hydrolyzed milk protein, hydrolyzed honey protein, hydrolyzed hazelnut protein, hydrolyzed jojoba protein, hydrolyzed vegetable protein, and hydrolyzed royal jelly protein.

[0015] The hydrolyzed protein derivative is blended as a hair repair component, and is selected from one or more known hydrolyzed protein derivatives such as cationized hydrolyzed protein and silylated hydrolyzed protein.Cationized hydrolyzed protein includes, for example, hydroxypropyltrimonium hydrolyzed collagen, hydroxypropyltrimonium hydrolyzed keratin, hydroxypropyltrimonium hydrolyzed silk, hydroxypropyltrimonium hydrolyzed casein, hydroxypropyltrimonium hydrolyzed soy protein, cocodimonium hydroxypropyl hydrolyzed collagen, cocodimonium hydroxypropyl hydrolyzed keratin, cocodimonium hydroxypropyl hydrolyzed silk, and cocodimonium hydroxypropyl hydrolyzed soy protein.Silylated hydrolyzed protein includes, for example, hydrolyzed collagen PG propyl methylsilanediol, (dihydroxymethylsilylpropoxy) hydroxypropyl hydrolyzed keratin, (dihydroxymethylsilylpropoxy) hydroxypropyl hydrolyzed silk, and (dihydroxymethylsilylpropoxy) hydroxypropyl hydrolyzed soy protein.

[0016] The total amount of hydrolyzed protein and its derivatives blended in the pretreatment agent of this embodiment is preferably 0.05% by mass to 5% by mass, more preferably 0.1% by mass to 4% by mass, more preferably 0.3% by mass to 3% by mass, even more preferably 0.5% by mass to 2% by mass, and even more preferably 0.7% by mass to 2% by mass. A content of 0.05% by mass or more is suitable for hair repair, and a content of 5% by mass or less is good from the viewpoint of reducing the cost of the pretreatment agent.

[0017] The hydrolyzed protein and its derivatives blended in the pretreatment agent of this embodiment preferably have a number average molecular weight of 10,000 or less, more preferably 8,000 or less, and even more preferably 5,000 or less. If the number average molecular weight is 10,000 or less, the penetrability into hair is excellent. On the other hand, the lower limit of the number average molecular weight of the hydrolyzed protein and its derivatives is, for example, 300 or more.

[0018] The number average molecular weight is calculated by the following formula (1) based on the amino acid terminal group determination method, which is determined from the ratio of the total nitrogen amount of the peptides constituting the hydrolyzed protein etc. to the nitrogen amount of the terminal amino acid.

[0019]

number

[0020] Products containing hydrolyzed proteins with a number average molecular weight of 10,000 or less are available on the market, for example, hydrolyzed keratin-containing products manufactured by Seiwa Kasei Co., Ltd., such as "Promois WK (number average molecular weight of hydrolyzed keratin: 400)", "Promois WK-H (number average molecular weight of hydrolyzed keratin: 1000)", "Promois WK-L (number average molecular weight of hydrolyzed keratin: 4000)", and "Promois WK-GB (number average molecular weight of hydrolyzed keratin: 10000)". Products containing hydrolyzed protein derivatives with a number average molecular weight of 10,000 or less are available on the market, for example, hydrolyzed keratin-containing product manufactured by Seiwa Kasei Co., Ltd., such as "Promois WK-HQ (number average molecular weight of hydrolyzed keratin: 1000)".

[0021] The total amount of hydrolyzed proteins and their derivatives having a number average molecular weight of 10,000 or less blended in the pretreatment agent of this embodiment is preferably 0.05% by mass to 5% by mass, more preferably 0.1% by mass to 4% by mass, more preferably 0.3% by mass to 3% by mass, even more preferably 0.5% by mass to 2% by mass, and even more preferably 0.7% by mass to 2% by mass. A content of 0.05% by mass or more is suitable for hair repair, and a content of 5% by mass or less is good from the viewpoint of reducing the cost of the pretreatment agent.

[0022] As described above, the pretreatment agent of this embodiment may contain optional components that are included in known hair treatment agents. The optional components include nonionic surfactants, polyhydric alcohols, polymeric compounds, fragrances, preservatives, etc. If a (chlorophyllin / copper) complex or a (chlorophyllin / iron) complex is added to the pretreatment agent, there is a risk that it will bind to hydrolyzed proteins and / or their derivatives. Therefore, the total amount of the (chlorophyllin / copper) complex and the (chlorophyllin / iron) complex in the pretreatment agent is preferably less than 0.01% by mass, more preferably less than 0.005% by mass, more preferably less than 0.001% by mass, and even more preferably less than 0.0005% by mass (it is optimal to not add both the (chlorophyllin / copper) complex and the (chlorophyllin / iron) complex).

[0023] The form of the pretreatment agent is not particularly limited, but is preferably liquid. If it is liquid, the hydrolyzed protein and / or its derivatives can easily penetrate into the inside of the hair, making it suitable for repairing the inside of the hair. The viscosity of the pretreatment agent is preferably 1000 mPa·s or less. This viscosity refers to the value measured 60 seconds after the start of measurement using a B-type viscometer with an appropriate rotor at 25°C and a rotor rotation speed of 12 rpm.

[0024] The pH of the pretreatment agent of this embodiment at 25° C. is, for example, not less than 6.0 and less than 8.0.

[0025] (Post-treatment agent) The post-treatment agent of this embodiment is a mixture of a chlorophyllin / copper complex, a chlorophyllin / iron complex, or a chlorophyllin / copper complex and a chlorophyllin / iron complex, and water (the amount of water is, for example, 70% by mass or more). In addition, components contained in known hair treatment agents may be contained as optional components.

[0026] The (chlorophyllin / copper) complex and (chlorophyllin / iron) complex enhance the durability of hair repair provided by the hydrolyzed protein and its derivatives contained in the pretreatment agent of this embodiment. The total amount of the (chlorophyllin / copper) complex and (chlorophyllin / iron) complex in the posttreatment agent of this embodiment is preferably 0.005% by mass or more and 2% by mass or less, more preferably 0.01% by mass or more and 0.5% by mass or less, and more preferably 0.02% by mass or more and 0.1% by mass or less. If it is 0.005% by mass or more, it is suitable for the durability of hair repair, and if it is 2% by mass or less, it is suitable for easy washing and removal when clothes are stained by the posttreatment agent.

[0027] As described above, the post-treatment agent of this embodiment may contain optional components that are included in known hair treatment agents. These optional components include nonionic surfactants, polyhydric alcohols, polymeric compounds, fragrances, preservatives, etc. If hydrolyzed protein or its derivative is added to the post-treatment agent, it may bind to the (chlorophyllin / copper) complex and / or the (chlorophyllin / iron) complex. Therefore, the total amount of hydrolyzed protein and its derivative in the post-treatment agent is preferably less than 0.05% by mass, more preferably less than 0.01% by mass, more preferably less than 0.005% by mass, and even more preferably less than 0.001% by mass (it is optimal not to add hydrolyzed keratin or its derivative).

[0028] The formulation of the post-treatment agent is not particularly limited, but is preferably liquid. If it is liquid, the (chlorophyllin / copper) complex and / or the (chlorophyllin / iron) complex can easily penetrate into the inside of the hair, making it suitable for repairing the inside of the hair. The viscosity of the post-treatment agent is preferably 1000 mPa·s or less. This viscosity refers to the value measured 60 seconds after the start of measurement using a B-type viscometer with an appropriate rotor at 25°C and a rotor rotation speed of 12 rpm.

[0029] The pH of the post-treatment agent of this embodiment at 25° C. is, for example, not less than 6.0 and less than 8.0.

[0030] (How to use) The multi-component hair treatment agent of the present embodiment is preferably used for the purpose of repairing hair, and is therefore suitable for use in repairing hair damaged by oxidation hair dye treatment, permanent wave treatment, or the like. In hair treatment using the multi-component hair treatment agent of the present embodiment, if the pretreatment agent of the present embodiment is applied to the hair and then the post-treatment agent of the present embodiment is applied, there is no particular limitation on whether or not to wash with water between the application of the pretreatment agent and the application of the post-treatment agent, but not washing with water is preferable since this prevents the outflow of hydrolyzed proteins and / or derivatives thereof that repair the hair by application of the pretreatment agent. In addition, the hair may be treated with a known hair treatment agent before application of the pretreatment agent, between application of the pretreatment agent and application of the post-treatment agent, or after application of the post-treatment agent. EXAMPLES

[0031] The present invention will be described in detail below based on examples. However, the present invention should not be construed as being limited to the descriptions of these examples.

[0032] (Pretreatment agent) An aqueous solution of 1.7% by mass of a commercially available product containing hydrolyzed keratin with a number average molecular weight of 4000 ("Promois WK-L" manufactured by Seiwa Kasei Co., Ltd.) was prepared as a pretreatment agent.

[0033] (Post-treatment agent) An aqueous solution of 0.008% by mass of a (chlorophyllin / copper) complex was prepared as a post-treatment agent.

[0034] (Hair treatment in Example 1 and Comparative Examples 1 and 2) Hair that had been treated with an oxidative hair dye was collected from a Japanese woman, and a bleaching agent (a mixture of 1 part by weight of Milbon's "Powder Bleach" and 2 parts by weight of Milbon's "Ordeve OXIDANT 6%") was applied to the hair in an amount four times the weight of the hair, and the hair was left for 30 minutes before being washed with water and dried. The above process of applying the bleaching agent and drying was repeated six times, and this hair was used as the hair treatment subject.

[0035] In the hair treatment of Example 1, 0.5 g of hair bundle was immersed in 50 g of pre-treatment agent for 1 hour, then immersed in 50 g of post-treatment agent for 1 hour, rinsed with running water for 10 seconds, naturally dried, and conditioned overnight in a constant temperature and humidity chamber set at 25°C and 50% RH. In the hair treatment of Comparative Example 1, the same treatment as in Example 1 was carried out, except that immersion in the post-treatment agent was omitted. In Comparative Example 2, the same treatment as in Example 1 was carried out, except that immersion in the pre-treatment agent and post-treatment agent was omitted.

[0036] (Cleaning process) The shampoo composition was applied to the wet hair bundle for 20 seconds at a mass ratio of hair bundle:shampoo composition ("Noidue Willow Luxe Shampoo" manufactured by Milbon Co., Ltd.), and the hair bundle was washed with running water for 20 seconds. The moisture in the hair bundle was then wiped off, and the hair bundle was then dried with hot air. This process up to drying was repeated 14 times to complete the washing process.

[0037] (Measurement of initial elastic modulus) The initial elastic modulus of hair before and after washing treatment after the hair treatment of Example 1, before and after washing treatment after the hair treatment of Comparative Example 1, and the hair treated in Comparative Example 2 was measured as follows. Each hair was cut to a length of 30 mm, and tape was attached to both ends. After measuring the diameter of the hair, the hair sample was immersed in a petri dish containing distilled water for 12 hours or more. The initial elastic modulus was then measured using a fully automatic tensile tester (Dia-stron "MTT690") to measure the stress when stretched at a speed of 3 mm / min, and the obtained data was calculated using an analysis program (the initial slope, so-called hook slope, was calculated when the X-axis is the stretch rate and the Y-axis is the stress).

[0038] Table 1 below shows the "initial modulus of elasticity" as an average value (for the initial modulus of elasticity, the value before washing treatment in Example 1 is the average value for 12 hairs, the value after washing treatment in Example 1 is the average value for 32 hairs, the value before washing treatment in Comparative Example 1 is the average value for 15 hairs, the value after washing treatment in Comparative Example 1 is the average value for 15 hairs, and the value before washing treatment in Comparative Example 2 is the average value for 40 hairs). Also shown is the "decrease rate of initial modulus of elasticity due to washing treatment." The "decrease rate of initial modulus of elasticity due to washing treatment" is a value calculated using the following formula (2).

[0039]

number

[0040] [Table 1]

[0041] Regarding the initial elastic modulus in Table 1 above, a comparison between Example 1 and Comparative Example 1 and Comparative Example 2 confirms that the treatment with a pre-treatment agent improves the initial elastic modulus and repairs the hair. Also, regarding the rate of decrease in the initial elastic modulus due to washing treatment, a comparison between Example 1 and Comparative Example 1 confirms that the rate of decrease in the initial elastic modulus is significantly smaller when treatment with a post-treatment agent is performed, thereby improving the durability of the hair repair.

Claims

1. A pretreatment agent containing a hydrolyzed protein and / or a derivative thereof; and a post-treatment agent containing a chlorophyllin / copper complex and / or a chlorophyllin / iron complex, and is used on hair that has been treated with an oxidation hair dye treatment or a permanent wave treatment. A multi-ingredient hair treatment product.

2. 2. The multi-agent hair treatment composition according to claim 1, wherein the hydrolyzed protein and / or derivatives thereof in the pretreatment agent have a number average molecular weight of 10,000 or less.

3. 3. The multi-component hair treatment composition according to claim 1, wherein the pre-treatment agent and the post-treatment agent are in liquid form.

4. A hair treatment method using the multi-component hair treatment composition according to any one of claims 1 to 3.

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