JP2013133320A - Hair dye - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hair dye having a specified dye which is identical to an ingredient included in a plant compounded therein, wherein the specified dye possesses a high densely dyeing property.SOLUTION: The hair dye is compounded from one or two or more dyes selected from brazilin, hematoxylin, berberine, crocin, monascorublin, xanthomonasin, carminic acid, curcumin, and gardenia blue, a reducing agent with a thiol group, and an alkali agent.

Description

  The present invention relates to a hair dye containing a specific dye.

  As one type of hair dye used for coloring hair, an oxidative hair dye in which a first agent containing an oxidative dye and a second agent containing hydrogen peroxide are mixed is known. As hair agents, those containing pigments derived from plants such as turmeric, Suho, Akamino trees, twilight and indigo are known. The plant-derived pigment in the latter hair dye contains a pigment that becomes a dye, and the hair is colored with the pigment. Patent Document 1 discloses a material containing a natural plant dye component derived from plants such as Suho and Huangpu (Claim 1), and Patent Document 2 discloses a hair dye containing indigo spider and sodium sulfite. There is a disclosure of the agent (Example 1).

JP 2002-138024 A JP 2004-2475 A

  Dyeing hair using the same dyes as the plant-derived components as described above is also preferred by naturalists. Further, it is often desired to increase the dyeing by the hair dye.

  In view of the above circumstances, an object of the present invention is to provide a hair dye which contains the same specific dye as the component contained in plants and has high darkness with the dye.

  As a result of the present inventors diligently studying hair dyes containing dye components contained in plants, a hair dye containing a specific dye and a reducing agent having a thiol group and an alkali agent is used. As a result, the present inventors have found that the deep dyeing property is high and have completed the present invention.

  That is, the hair dye according to the present invention is one or two or more dyes selected from bradylin, hematoxylin, berberine, crocin, monascorbulin, xanthmonacin, carmic acid, curcumin, and gardenia blue pigment, thiol group It is characterized in that a reducing agent having an alkaline agent and an alkaline agent are blended. The hair dye contains sugi pigment containing bradylin, acaminoki pigment containing hematoxylin, yellowfin pigment containing berberine, gardenia yellow pigment containing crocin, benichouji pigment containing monascorbline, and xanthomonasin 1 type or 2 types or more chosen from the beech mushroom pigment | dye to be used, the cochineal pigment | dye containing a carminic acid, and the turmeric pigment | dye containing curcumin may be mix | blended.

  The pH of the hair dye according to the present invention is, for example, 8.0 or more and 11.0 or less.

  It is preferable that alkanolamine is blended as the alkali agent. As the alkanolamine, monoethanolamine, diethanolamine, triethanolamine, monopropanolamine, dipropanolamine, tripropanolamine, monoisopropanolamine, 2-amino-2-methyl-1,3-propanediol, 2-amino- 2-Methyl-1-propanol or 2-amino-2-hydroxymethyl-1,3-propanediol is preferably blended.

  According to the hair dye according to the present invention in which a reducing agent having a thiol group and an alkali agent are blended, the hair is highly dyeable with a specific dye.

Based on the hair dye which concerns on embodiment of this invention, this invention is demonstrated below.
The hair dye which concerns on this embodiment mix | blends dye, a reducing agent, and an alkaline agent with water (The compounding quantity of water is 70 mass% or more, for example). Moreover, the hair dye which concerns on this embodiment may further mix | blend the well-known raw material for hair dyes as an arbitrary raw material.

(dye)
In the hair dye of this embodiment, one or more selected from bradylin, hematoxylin, berberine, crocin, monascorbulin, xanthmonacin, carminic acid, curcumin, and gardenia blue pigment are blended as essential dyes. The

  The essential dye has the same structure as the plant-derived pigment, and the color when the dye is used is as follows. Bradylin is a pigment also contained in the core material of the trunk of Suesu (Caesalpinia sappan), and the color of white yak hair treated with a hair dye containing only bradylin as a dye is red. Hematoxylin is a pigment contained in the sap of red sea bream (Haematoxylum campechianum), and the color of white yak hair treated with a hair dye containing only hematoxylin as a dye is purple. Berberine is a pigment contained in water and ethanol extracted from the bark of yellowfin (Phellodendron amurense), and the color of white yak hair treated with a hair dye containing berberine alone as a dye is yellow. It is. Crocin is a pigment contained in the fruit of gardenia jasminoides, extracted with water or water-containing ethanol, and the color of white yak hair treated with a hair dye containing crocin alone as a dye is yellow. It is a system. Monascobrin is a pigment contained in a product obtained by extraction from Monascus purpureus with water-containing ethanol or water-containing propylene glycol, and white yak hair treated with a hair dye containing only monascobrin as a dye. The color of is red. Xanthomonasin is contained in the pigment obtained by extraction with neutral acid acid ethanol after neutralizing the dried culture liquid of Monascus purpureus and neutralizing it. The color of white yak hair treated with a hair dye formulated as a dye is yellow. Carminic acid is a pigment contained in a product obtained by extraction with water-containing ethanol from a dried body of Coccus cacti, and the color of white yak hair treated with a hair dye containing only carminic acid as a dye. Is purple. Curcumin is a pigment contained in a product obtained by extraction with ethanol from a dried turmeric (Curcuma longa) rhizome, and the color of white yak hair treated with a hair dye containing curcumin alone as a dye is It is yellowish. Gardenia blue pigment is obtained by adding β-glucosidase to a mixture of iridoid glycoside and proteolysate obtained by water extraction from gardenia (Gardenia jasminoides) fruit and separating it. The color of white yak hair treated with a hair dye containing only a blue pigment as a dye is blue.

  Although the compounding quantity of the essential dye in the hair dye of this embodiment is not specifically limited, For example, they are 1 mass% or more and 10 mass% or less.

  You may mix | blend the dye mix | blended with well-known hair dyes other than the said essential dye as a dye of the hair dye of this embodiment.

(Reducing agent)
In the hair dye of this embodiment, 1 type, or 2 or more types chosen from the reducing agent which has a thiol group is mix | blended as an essential reducing agent. Here, the “reducing agent” refers to a compound having a property capable of reducing and cleaving a disulfide bond of hair.

  Examples of the reducing agent having a thiol group include salts of thioglycolic acid such as thioglycolic acid and sodium thioglycolate, cysteine salts such as cysteine and cysteine hydrochloride, N-acetylcysteine, N-acetylcysteine hydrochloride, and the like. N-acetylcysteine salt, cysteamine, thioglycerol, thiolactic acid, thiolactic acid salt, thiomalic acid, thiomalic acid salt.

  Although the compounding quantity of the reducing agent which has a thiol group in the hair dye of this embodiment is not specifically limited, 0.1 to 1.0 mass% is good. When the blending amount is out of the range, the deep dyeing may not be sufficiently improved.

  A known reducing agent other than the above-described reducing agent having a thiol group may be used as a reducing agent blended in the hair dye of the present embodiment.

(Alkaline agent)
In the hair dye of this embodiment, 1 type, or 2 or more types chosen from the alkali agent are mix | blended. Here, the “alkali agent” means a raw material that makes the pH alkaline when an aqueous solution is used.

  Examples of the alkali agent include ammonia, alkanolamine (monoethanolamine, diethanolamine, triethanolamine, monopropanolamine, dipropanolamine, tripropanolamine, monoisopropanolamine, 2-amino-2-methyl-1,3- Propanediol, 2-amino-2-methyl-1-propanol, 2-amino-2-hydroxymethyl-1,3-propanediol, etc., basic amino acid (eg arginine), carbonate (ammonium carbonate, ammonium hydrogen carbonate) , Sodium carbonate, sodium hydrogen carbonate, etc.), phosphates (sodium monohydrogen phosphate, etc.), and sodium hydroxide. A suitable example of the alkali agent for enhancing the deep dyeability is alkanolamine.

  Although the compounding quantity of the alkaline agent in the hair dye of this embodiment is not specifically limited, For example, it is the quantity which makes pH of a hair dye 8.0 or more and 11.0 or less.

(Optional raw material)
The arbitrary raw material mix | blended with the hair dye of this invention is suitably selected from a well-known hair dye raw material. Hair dye raw materials are anionic surfactants, cationic surfactants, amphoteric surfactants, alcohols, polyhydric alcohols, sugars, ester oils, fats and oils, fatty acids, hydrocarbons, waxes, silicones, polymer compounds, amino acids, animals and plants Extracts, microorganism-derived substances, inorganic compounds, fragrances, preservatives, sequestering agents, ultraviolet absorbers and the like.

  Any one of lower alcohols such as ethanol and isopropanol; polyhydric alcohols such as propylene glycol, 1,3-butylene glycol, isopropylene glycol and glycerine; and aromatic alcohols such as benzyl alcohol and benzyloxyethanol; In order to improve the deep dyeability, it is preferable.

(Form)
The dosage form at the time of use of a hair dye is not specifically limited, For example, liquid form, cream form, foam form (foam form) is mentioned. When it is necessary to increase the viscosity in order to obtain a desired dosage form, a polymer compound or the like may be blended in the same manner as known hair dyes.

(PH)
The pH of the hair dye of this embodiment is alkaline. The pH is preferably 8.0 or more and 11.0 or less. In addition, when adjustment of pH is required, it is good to carry out by mix | blending said alkali agent.

  EXAMPLES Hereinafter, although this invention is explained in full detail based on an Example, this invention is not interpreted limitedly based on description of this Example, unless it deviates from the meaning of this invention.

  The hair dye of the following Example and Comparative Example was manufactured, and the hair dyeing process of the white hair bundle (yak hair bundle) was performed using this hair dye. The hair dyeing treatment was performed by applying a hair dye to the white hair bundle and leaving it to stand for about 30 minutes, followed by washing with a shampoo. And the hair | bristle bundle color after making it dry with warm air was confirmed visually.

(Examples 1a to 1e, Comparative Examples 1a to 1c)
Commercially available products containing brazirin derived from Caesalpinia sappan ("Botanical Color / Red" manufactured by Real Chemical Co., Ltd.) Names of all ingredients: Suougi, dextrin, carrageenan, brown algae extract, sodium alginate, monascus extract, rose Marie, chamomile, licorice) and warm water were mixed at a mass ratio of commercial product: warm water = 1: 10. By adding a reducing agent and an alkaline agent to the mixture so as to have the concentrations shown in Table 1, the dyes of Examples 1a to 1e and Comparative Examples 1a to 1c having a pH of 9.0 to 10.0 were added. A hair preparation was produced.

Table 1 below shows the results of “evaluation of deep dyeing” in which the hair dyeing treatment was performed using the hair dyes of Examples 1a to 1e and Comparative Examples 1a to 1c. “Evaluation of dark dyeing” was performed as follows based on the results of Comparative Example 1a.
OO: It was dyed very darker than the standard.
○○: It was dyed darker than the standard.
○: It was dyed slightly darker than the standard.
-: Standard (Comparative Example 1a) or equivalent to the standard.
X: Dyeing was lighter than the standard.

  In the dark dyeing evaluation in Table 1 above, Examples 1a to 1e in which a reducing agent having a thiol group and an alkali agent were blended were Comparative Examples 1a in which a reducing agent and an alkali agent were not blended, and a reduction having a thiol group. It can be confirmed that the evaluation of deep dyeing was better than those of Comparative Example 1b in which no agent was blended and Comparative Example 1c in which no alkali agent was blended. In addition, it is advantageous for deep dyeing to use cysteamine as a reducing agent (contrast between Example 1a and Examples 1d and 1e), and use of alkanolamine as an alkaline agent is advantageous for deep dyeing. (Contrast with Examples 1a and 1b and Example 1c) can be confirmed.

(Examples 1f-1 to 1f-2, Examples 1g-1 to 1g-2, Examples 1h-1 to 1h-2)
Example 1f having a pH of 9.0 to 10.0 was further added to a mixture of a commercial product and warm water mixed in the same manner as in Example 1a by adding a reducing agent and an alkaline agent so as to have the concentrations shown in Table 2. The hair dyes of -1 to 1f-2, Examples 1g-1 to 1g-2, and Examples 1h-1 to 1h-2 were produced.

  The hair dyeing treatment was performed using the hair dyes of Examples 1f-1 to 1f-2, Examples 1g-1 to 1g-2, and Examples 1h-1 to 1h-2. The results are shown in Table 2 below. “Superiority of dark dyeing” refers to the comparison between Example 1f-1 and Example 1f-2, the comparison between Example 1g-1 and Example 1g-2, Example 1h-1 and Example 1h-2. As a result of the comparison, the evaluation of the darkly stained one was “O”, and the case of being lightly dyed or equivalent to both was “-”.

  Table 2 above shows that increasing the blending amount of the reducing agent is not necessarily advantageous to the deep dyeability.

(Examples 2a to 2e, Comparative Examples 2a to 2b)
As a commercial product to be mixed with warm water, Haematoxylum
Other than using commercially available products containing hematoxylin derived from campechianum ("Botanical Color / Akaminoki Color" manufactured by Real Chemical Co., Ltd.), and the names of all ingredients included: Acamino Tree, Carrageenan, Brown Algae Extract, Rosemary, Chamomile, Licorice) Produced hair dyes of Examples 2a to 2e and Comparative Examples 2a to 2b having a pH of 9.0 to 10.0 in the same manner as Example 1a.

  Table 3 below shows the results of “evaluation of deep dyeing” in which the hair dyeing treatment was performed using the hair dyes of Examples 2a to 2e and Comparative Examples 2a to 2b. “Evaluation of deep dyeability” was carried out in the same manner as in Example 1a, with reference to Comparative Example 2a.

  In Table 3 above, the same dark dyeing evaluation as in Table 1 is shown. That is, Examples 2a to 2e, in which a reducing agent having a thiol group and an alkaline agent were blended, Comparative Example 2a in which a reducing agent and an alkaline agent were not blended, and Comparative Example in which a reducing agent having a thiol group was not blended The evaluation of deep dyeing was better than any of 2b. In addition, it is advantageous for deep dyeing to use cysteamine as a reducing agent (contrast between Example 2a and Examples 2d and 2e), and alkanolamine as an alkaline agent is advantageous to deep dyeing. (Contrast with Examples 2a and 2b and Example 2c) can be confirmed.

(Examples 2f-1 to 2f-2, Examples 2g-1 to 2g-2, Examples 2h-1 to 2h-2)
The pH is 9.0 to 10.0 by further adding a reducing agent and an alkaline agent to the mixture of a commercial product and warm water mixed in the same manner as in Example 2a so as to have the concentrations shown in Table 4. The hair dyes of Examples 2f-1 to 2f-2, Examples 2g-1 to 2g-2, and Examples 2h-1 to 2h-2 were produced.

  The hair dyeing treatment was performed using the hair dyes of Examples 2f-1 to 2f-2, Example 2g-1 to Example 2g-2, and 2h-1 to 2h-2. The results are shown in Table 4 below. “Superiority of dark dyeing” is a comparison between Example 2f-1 and Example 2f-2, a comparison between Example 2g-1 and Example 2g-2, Example 2h-1 and Example 2h-2. As a result of the comparison, the evaluation of the one that is darkly dyed as a result of the comparison is “◯”, and the one that is lightly dyed or the equivalent is “−”.

  Table 4 shows that, as in Table 2, increasing the blending amount of the reducing agent is not necessarily advantageous for dark dyeing.

(Examples 3a to 3e, Comparative Examples 3a to 3b)
A commercial product that contains berberine derived from Phellodendron amurense as a commercial product to be mixed with warm water ("Botanical Color / Yellow Color" manufactured by Real Chemical Co., Ltd.), Name of all ingredients: Yellowfin powder, sucrose, brown algae extract, carrageenan , Rosemary, chamomile, licorice) In the same manner as in Example 1a, hair dyes of Examples 3a to 3e and Comparative Examples 3a to 3b having a pH of 9.0 to 10.0 were produced.

  Table 5 below shows the results of “evaluation of deep dyeing” in which the hair dyeing treatment was performed using the hair dyes of Examples 3a to 3e and Comparative Examples 3a to 3b. “Evaluation of dark dyeing” was carried out in the same manner as in Example 1a, with reference to Comparative Example 3a.

  In Table 5 above, the same dark dyeing evaluation as in Table 1 is shown. That is, Examples 3a to 3e, in which a reducing agent having a thiol group and an alkaline agent were blended, Comparative Example 3a in which a reducing agent and an alkaline agent were not blended, and Comparative Example in which a reducing agent having a thiol group was not blended The evaluation of deep dyeing was better than any of 3b. In addition, it is advantageous for deep dyeing to use cysteamine as a reducing agent (contrast with Example 3a and Examples 3d and 3e), and alkanolamine as an alkaline agent is advantageous to deep dyeing. (Contrast between Examples 3a and 3b and Example 3c) can be confirmed.

Example 4
A composition having a pH of 10 containing an alkaline agent and a reducing agent (concentration concentration of 2-amino-2-methyl-1-propanol 2% by mass, cysteamine 1% by mass, benzyl alcohol 8% by mass, ethanol 16% by mass) And 10 parts by mass of a composition in which all of them are mixed with water) and 1 part by mass of a commercially available product containing crocin (Daiwa Kasei Co., Ltd. gardenia yellow pigment-containing product “Crosin P-1900”) The hair dye of Example 4 was produced.

(Comparative Example 4)
A hair dye of Comparative Example 4 was produced in the same manner as in Example 4 except that the pH 10 composition in Example 4 was changed to water.

  Comparing the dark dyeing properties of the hair bundle treated with the hair dye of Example 4 and the hair bundle treated with the hair dye of Comparative Example 4, the hair bundle treated with the hair dye of Example 4 was dyed darker. It was.

(Example 5)
Example 5 was carried out in the same manner as in Example 4 except that “commercial product containing crocin” in Example 4 was changed to “commercial product containing gardenia blue pigment (“ High Blue GP-4A ”manufactured by Daiwa Kasei Co., Ltd.). A hair dye was produced.

(Comparative Example 5)
A hair dye of Comparative Example 5 was produced in the same manner as in Example 5 except that the pH 10 composition in Example 5 was changed to water.

  When the dark dyeing properties of the hair bundle treated with the hair dye of Example 5 and the hair bundle treated with the hair dye of Comparative Example 5 are compared, the hair bundle treated with the hair dye of Example 5 dyes darker. It was.

(Example 6)
In the same manner as in Example 4 except that “commercial product containing crocin” in practical example 4 was changed to “commercial product containing Monascorbulin (Daiwa Chemical Co., Ltd. Benikouji dye-containing product“ Daiwamonas PH-3000 ”)”. The hair dye of Example 6 was produced.

(Comparative Example 6)
A hair dye of Comparative Example 6 was produced in the same manner as in Example 6 except that the pH 10 composition in Example 6 was changed to water.

  When the dark dyeing properties of the hair bundle treated with the hair dye of Example 6 and the hair bundle treated with the hair dye of Comparative Example 6 were compared, the hair bundle treated with the hair dye of Example 6 dyed darker. It was.

(Example 7)
In the same manner as in Example 4, except that “commercial product containing crocin” in practical example 4 was changed to “commercial product containing xanthmonacin (Daiwa Kasei Co., Ltd. Benikouji dye-containing product“ Daiwamonas Yellow TK ”)”. The hair dye of Example 7 was produced.

(Comparative Example 7)
A hair dye of Comparative Example 7 was produced in the same manner as in Example 7 except that the pH 10 composition in Example 7 was changed to water.

  When the dark dyeing properties of the hair bundle treated with the hair dye of Example 7 and the hair bundle treated with the hair dye of Comparative Example 7 are compared, the hair bundle treated with the hair dye of Example 7 is more intensely dyed. It was.

(Example 8)
In the same manner as in Example 4 except that “commercial product containing crocin” in practical example 4 was changed to “commercial product containing carminic acid (cochineal dye-containing product“ Cochineal Red P-900 ”manufactured by Daiwa Kasei Co., Ltd.)”. The hair dye of Example 8 was produced.

(Comparative Example 8)
A hair dye of Comparative Example 8 was produced in the same manner as in Example 8, except that the pH 10 composition in Example 8 was changed to water.

  When the dark dyeing properties of the hair bundle treated with the hair dye of Example 8 and the hair bundle treated with the hair dye of Comparative Example 8 are compared, the hair bundle treated with the hair dye of Example 8 dyes darker. It was.

Example 9
Example 9 is the same as Example 4 except that “commercial product containing crocin” in Example 4 was changed to “commercial product containing curcumin (turmeric pigment“ curcumin purified product ”manufactured by Daiwa Kasei Co., Ltd.)”. A hair dye was produced.

(Comparative Example 9)
A hair dye of Comparative Example 9 was produced in the same manner as in Example 9, except that the pH 10 composition in Example 9 was changed to water.

  When the dark dyeing properties of the hair bundle treated with the hair dye of Example 9 and the hair bundle treated with the hair dye of Comparative Example 9 are compared, the hair bundle treated with the hair dye of Example 9 is dyed darker. It was.

(Examples 10 to 16)
PH 10 composition containing alkali agent and reducing agent (2-amino-2-methyl-1-propanol 2% by mass, cysteamine 0.5% by mass, benzyl alcohol 8% by mass, ethanol 16% by mass, Thus, the hair dye of Examples 10-16 was manufactured by mixing 10 parts by mass of a composition prepared by mixing all of them with water and 1 part by mass of a commercial product containing a dye. In Example 10, commercially available products containing the dye used here were 2 parts by mass of “Daiwamonas PH-3000” manufactured by Daiwa Kasei Co., Ltd., 2 parts by mass of “Crosin P-1900” manufactured by Daiwa Kasei Co., Ltd., and Real Chemical Co., Ltd. “Botanical Color / Akaminoki Color” manufactured by Daiichi Kasei Co., Ltd. in Example 12 and “High Blue GP-4A” manufactured by Daiwa Kasei Co., Ltd. In Example 13, “Crocine P-1900” manufactured by Daiwa Kasei Co., Ltd., and in Example 14, 1 part by weight of “Daiwamonas PH-3000” manufactured by Daiwa Kasei Co., Ltd. 1900 "1 part by weight of the mixture, in Example 15," Botanical Color / Red "manufactured by Real Chemical Co., Ltd. Over-red "1 part by weight, and was real Kagaku" Botanical Color haematoxylum campechianum color "1 part by weight mixture.

  The hair bundle that was dyed with the hair dye of Example 10 was dyed a brown color. Moreover, the hair bundle which performed the process by the hair dye of Examples 11-16 is a purple color in the case of Example 11, the blue color in the case of Example 12, and the hair color of Example 13. In the case of Example 14, the color of orange in the case of Example 14, the color of red in the case of Example 15, and the color of purple in Example 16. It was.

(Comparative Examples 10a to 10h)
Commercial product with indigo blended as a commercial product to be mixed with warm water ("Botanical Color / Indigo" manufactured by Real Chemical Co., Ltd., display name of all the ingredients: Eye, Carrageenan, Cellulose, Brown Algae Extract, Mukuroji Extract, Rosemary, Chamomile , Licorice) was used in the same manner as in Example 1a to prepare hair dyes of Comparative Examples 10 to 10 having a pH of 9.0 to 10.0.

  Table 6 below shows the results of “evaluation of deep dyeing” in which the hair dyeing treatment was performed using the hair dyes of Comparative Examples 10a to 10h. “Evaluation of dark dyeing” was carried out in the same manner as in Example 1a, with reference to Comparative Example 10f.

  In Table 6 above, darkness evaluation with a tendency different from Table 1 is shown. That is, even when a reducing agent was added, the dyeability deteriorated (comparative with Comparative Example 10f and Comparative Example 10h), and even when both the reducing agent and the alkali agent were added, the dyeability deteriorated (Comparative Example 10f). And comparison with Comparative Examples 10a to 10e). In addition, although only the hair | bristle bundle of the comparative example 10f was dye | stained by the blue color, it was not dye | stained about the other hair | bristle bundle.

(Comparative Example 11a)
A hair dye of Comparative Example 11a was produced in the same manner as in Example 4 except that “commercial product containing crocin” in Example 4 was changed to “commercial product containing red cabbage pigment containing cyanidin acylglycoside”.

(Comparative Example 11b)
A hair dye of Comparative Example 11b was produced in the same manner as Comparative Example 11a, except that the pH 10 composition in Comparative Example 11a was changed to water.

  As a result of confirming the deep dyeing property of the hair bundle treated with the hair dye of Comparative Example 11a and the hair bundle treated with the hair dye of Comparative Example 11b, it was not possible to confirm the dyeing of the hair bundle in both cases.

(Comparative Example 12a)
A hair dye of Comparative Example 12a was produced in the same manner as in Example 4 except that “commercial product containing crocin” in Example 4 was changed to “commercial product containing radish pigment containing pelargonidin acylglycoside”.

(Comparative Example 12b)
A hair dye of Comparative Example 12b was produced in the same manner as Comparative Example 12a, except that the pH 10 composition in Comparative Example 12a was changed to water.

  As a result of confirming the deep dyeing property of the hair bundle treated with the hair dye of Comparative Example 12a and the hair bundle treated with the hair dye of Comparative Example 12b, it was not possible to confirm the dyeing of the hair bundle in both cases.

Claims (5)

  Contains one or more dyes selected from bradylin, hematoxylin, berberine, crocin, monascorbulin, xanthmonacin, carminic acid, curcumin, and gardenia blue pigment, a reducing agent having a thiol group, and an alkaline agent The hair dye characterized by being made.   Sugi pigment containing bradylin, acaminoki pigment containing hematoxylin, yellowfin pigment containing berberine, gardenia yellow pigment containing crocin, Benikouji pigment containing monascorbulin, Benikouji pigment containing xanthmonacin, carminic acid The hair dye according to claim 1, wherein one or two or more kinds selected from a cochineal dye and a turmeric dye containing curcumin are blended.   The hair dye according to claim 1 or 2, wherein the pH is 8.0 or more and 11.0 or less.   The hair dye according to any one of claims 1 to 3, wherein alkanolamine is blended as the alkali agent. Examples of the alkanolamine include monoethanolamine, diethanolamine, triethanolamine, monopropanolamine, dipropanolamine, tripropanolamine, monoisopropanolamine, 2-amino-2-methyl-1,3-propanediol, 2-amino- The hair dye according to claim 4, wherein 2-methyl-1-propanol or 2-amino-2-hydroxymethyl-1,3-propanediol is blended.