Hair dye composition

Abstract

To provide a hair dye composition that has high hair dying power, the hair dying power being excellent during storage both at low and high temperatures, and also has less tendency to make the scalp dirty as well as excellent high-temperature stability.SOLUTION: A hair dye composition comprises the following components (A)-(F). Component (A): basic blue 124, (B): at least one selected from (B1) basic red 51, basic orange 31, (B2) basic yellow 57, basic yellow 87 or (B3) basic brown 16, basic brown 17, (C): polyhydric alcohol, (D): oil-based component that is liquid at 25°C, (E): cationic surfactant, and (F): C14-22 higher alcohol.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a hair dye composition, and more particularly to a hair dye composition containing a specific basic dye. [Background technology]

[0002] Hair coloring agents are broadly classified into permanent hair dyes such as oxidation hair dyes that use oxidation dyes, bleaches that lighten hair, semi-permanent hair dyes that use direct dyes, and temporary hair dyes that temporarily color hair. Of these, permanent hair dyes such as oxidation hair dyes that contain oxidation dyes are widely used because they can provide excellent hair dyeing effects, but they have the disadvantage of placing a heavy burden on the hair and scalp because they generally contain oxidizing agents and alkaline agents.

[0003] In contrast, semi-permanent hair dyes are hair dye compositions containing direct dyes such as basic dyes, acid dyes, and HC dyes, and one type of such product is color treatment, which simultaneously provides both hair dyeing and treatment effects. Because cationic surfactants are commonly used in color treatments to impart treatment effects, when used in combination with acid dyes, the cationic surfactant and the acid dye may aggregate, resulting in a decrease in hair dyeing power. For this reason, basic dyes and HC dyes, which do not tend to lose their hair dyeing power even when used in combination, are primarily used as direct dyes in color treatments.

[0004] Combining these multiple direct dyes results in a wide variety of color variations, and in recent trends in fashion colors, not only bright primary color hair colors such as red and blue, but also dull ash-like hair colors such as dark tones and gray tones are becoming increasingly popular. In addition, hair dye compositions such as color treatments do not use oxidizing agents or alkaline agents compared to oxidative hair dyes, and therefore have the advantage of being able to reduce damage to the hair and scalp and can be used frequently, and therefore demand for them has been increasing in recent years.

[0005] In order to prepare hair dye compositions for not only primary colors such as blue and vivid colors such as navy, but also color treatments for dull ash-like hair colors, which have become popular in recent years, blue-based basic dyes and HC dyes are essential. Patent Document 1 proposes a hair dye composition containing Basic Blue 75 and HC Blue 2 as blue-based basic and HC dyes, which provides a moist, smooth, manageable finish, and a good lasting feel when running fingers through the hair and a good texture when rinsing. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Publication No. 2020-132606 Summary of the Invention [Problem to be solved by the invention]

[0007] However, Basic Blue 75 in Patent Document 1 has the problem of being highly dyeable to the skin and easily leaving stains on the hands, scalp, and other surfaces during use. Reducing the content to avoid staining also reduces the hair dyeing power. HC Blue 2 also has the problem of low dyeing power, and further reduces the dyeing power over time due to dye decomposition under high-temperature conditions. On the other hand, increasing the content of HC Blue 2 to improve hair dyeing power destabilizes the emulsion of the hair dye composition, making it impossible to maintain high-temperature stability over time. Furthermore, under low-temperature conditions, the basic dye and HC dye may precipitate, resulting in a decrease in hair dyeing power over time.

[0008] Therefore, an object of the present invention is to provide a hair dye composition that has high hair dyeing power, good hair dyeing power when stored at low temperatures and when stored at high temperatures, suppresses scalp staining, and has excellent high-temperature stability. [Means for solving the problem]

[0009] As a result of extensive research, the present inventors have discovered a hair dye composition containing the following components (A) to (F): (A) Basic Blue 124 As the component (B), one or more selected from (B1) Basic Red 51, Basic Orange 31, (B2) Basic Yellow 57, Basic Yellow 87, or (B3) Basic Brown 16, Basic Brown 17 (C) Polyhydric alcohol (D) Oily components that are liquid at 25°C (E) Cationic surfactant (F) Higher alcohols with 14 to 22 carbon atoms However, they found a way to solve the above problems and completed the present invention. [Effects of the Invention]

[0010] The present invention provides a hair dye composition that has high hair dyeing power, good hair dyeing power when stored at low temperatures and high temperatures, inhibits scalp staining, and is excellent in high-temperature stability. DETAILED DESCRIPTION OF THE INVENTION

[0011] The present invention will be described in detail below.

[0012] In the present invention, the units indicating the content are all mass % unless otherwise specified.

[0013] In the present invention, the term "hair dyeing power" refers to the strength of the dyed hair color at 25°C.

[0014] In the present invention, hair dyeing power when stored at low temperatures means that the hair dyeing power after storing the hair dye composition at 5°C for a certain period of time is maintained over time compared to the hair dyeing power of the hair dye composition immediately after preparation.

[0015] In the present invention, hair dyeing power when stored at high temperatures means that the hair dyeing power after storing the hair dye composition at 40°C for a certain period of time is maintained over time compared to the hair dyeing power of the hair dye composition immediately after preparation.

[0016] In the present invention, high temperature stability refers to the emulsion stability when the hair dye composition is stored at 40°C and 50°C for a certain period of time.

[0017] In the present invention, color tone refers to the color tone of the dyed hair color of a hair dye composition made by combining multiple different dyes on hair equivalent to brightness level 11 (a level scale established by the Japan Hair Color Association, a non-profit organization, which divides hair brightness into 12 levels from 4 to 15).

[0018] In the present invention, the term "ash-based" refers to a dull color tone tinged with gray.

[0019] The hair dye composition of the present invention contains, as an essential basic dye, (A) Basic Blue 124. By combining, in any ratio, the (A) component and the (B) component with one or more dyes selected from (B1) Basic Red 51, Basic Orange 31, (B2) Basic Yellow 57, Basic Yellow 87, or (B3) Basic Brown 16, Basic Brown 17, a hair dye composition with extremely strong hair dyeing power can be obtained, which is particularly useful for dyeing hair in ash tones.

[0020] The present invention contains (A) Basic Blue 124 from the viewpoints of high dyeing power of basic dyes, dyeing power when stored at low temperatures and high temperatures, and suppression of scalp staining.

[0021] [Component (A): Basic Blue 124] The component (A) used in the present invention is a blue basic dye having the chemical structure shown in Chemical Formula 1 below. [ka]

[0022] The content of the component (A) used in the present invention is preferably 0.01 to 0.5%. If the content of the component (A) is less than 0.01%, the hair dyeing power may be reduced. If the content of the component (A) is more than 0.5%, the scalp staining may be worsened.

[0023] The present invention contains, as component (B) to be combined with component (A), one or more selected from (B1) Basic Red 51, Basic Orange 31, (B2) Basic Yellow 57, Basic Yellow 87, or (B3) Basic Brown 16, Basic Brown 17, from the viewpoints of the hair dyeing power of the basic dye, the hair dyeing power during storage at low temperatures and high temperatures, and the inhibition of scalp staining.

[0024] [Component (B1): Basic Red 51] The (B1) Basic Red 51 used in the present invention is a reddish basic dye having the chemical structure shown in Chemical Formula 2 below. [ka]

[0025] The content of the (B1) Basic Red 51 used in the present invention is preferably 0.003 to 0.3%.

[0026] [Component (B1): Basic Orange 31] The (B1) Basic Orange 31 used in the present invention is a reddish-orange basic dye having the chemical structure shown in Chemical Formula 3 below. [ka]

[0027] The content of the (B1) basic orange 31 used in the present invention is preferably 0.01 to 0.3%.

[0028] [Component (B2): Basic Yellow 57] The (B2) Basic Yellow 57 used in the present invention is a yellowish basic dye having the chemical structure shown in Chemical Formula 4 below. [ka]

[0029] The content of (B2) Basic Yellow 57 used in the present invention is preferably 0.05 to 0.6%.

[0030] [Component (B2): Basic Yellow 87] The (B2) Basic Yellow 87 used in the present invention is a yellowish basic dye having the chemical structure shown in Chemical Formula 5 below. [ka]

[0031] The content of the (B2) Basic Yellow 87 used in the present invention is preferably 0.01 to 0.5%.

[0032] [(B3) Ingredient: Basic Tea 16] The (B3) Basic Brown 16 used in the present invention is a brownish basic dye having the chemical structure shown in Chemical Formula 6 below. [ka]

[0033] The content of the (B3) Basic Tea 16 used in the present invention is preferably 0.01 to 0.6%.

[0034] [(B3) Ingredient: Basic Tea 17] The (B3) Basic Brown 17 used in the present invention is a brownish basic dye having the chemical structure shown in Chemical Formula 7 below. [ka]

[0035] The content of the (B3) basic tea 17 used in the present invention is preferably 0.01 to 0.3%.

[0036] When the present invention is to obtain a hair dye composition that dyes hair with an ash-based color but has high hair-dyeing power, and when the component (B1) is contained, from the viewpoint of the ash-based color, the mass ratio of the content of the component (A) to the component (B1) [(A) / (B1)] is preferably 0.2 to 10. If [(A) / (B1)] is less than 0.2 or exceeds 10, the dyed hair color may not be ash-based.

[0037] In the present invention, when a hair dye composition that dyes hair with an ash-based color but has high hair-dyeing power contains the component (B2), from the viewpoint of the ash-based color, the mass ratio (A) / (B2) of the content of the component (A) to the component (B2) is preferably 0.1 to 3. If [(A) / (B2)] is less than 0.1 or exceeds 3, the dyed hair color may not be ash-based.

[0038] In the present invention, when a hair dye composition that dyes hair with an ash-based color but has high hair-dyeing power contains the component (B3), from the viewpoint of the ash-based color, the mass ratio (A) / (B3) of the content of the component (A) to the component (B3) is preferably 0.17 to 3. If [(A) / (B2)] is less than 0.17 or exceeds 3, the dyed hair color may not be ash-based.

[0039] The present invention makes it possible to prepare a hair dye composition that has high hair dyeing power, good hair dyeing power when stored at low temperatures and high temperatures, and suppresses scalp staining, by using a combination of one or more selected from (B1) Basic Red 51, Basic Orange 31, (B2) Basic Yellow 57, Basic Yellow 87, or (B3) Basic Brown 16, Basic Brown 17 as the components (A) and (B).

[0040] The present invention contains (C) a polyhydric alcohol from the viewpoints of hair dyeing power, hair dyeing power when stored at low temperatures, and hair dyeing power when stored at high temperatures.

[0041] The component (C) used in the present invention is not particularly limited, but examples thereof include ethylene glycol, propylene glycol, dipropylene glycol, polyethylene glycol, 1,3-butylene glycol, glycerin, diglycerin, triglycerin, glucose, maltose, maltitol, sucrose, mannitol, sorbitol, 1,2-pentanediol, 1,2-hexanediol, and 1,2-octanediol, and the component (C) may contain one or more of these.

[0042] Of the components (C) used in the present invention, preferably one or more selected from ethylene glycol, 1,3-butylene glycol, or glycerin, more preferably two or more selected from ethylene glycol and 1,3-butylene glycol or glycerin, and even more preferably a combination of three selected from ethylene glycol, 1,3-butylene glycol, and glycerin.

[0043] The content of the component (C) used in the present invention is preferably 2 to 15%, more preferably 3 to 15%, and even more preferably 5 to 15%. If the content of the component (C) is less than 2%, the hair dyeing power, the hair dyeing power during low-temperature storage, and the hair dyeing power during high-temperature storage may decrease. If the content of the component (C) exceeds 15%, further improvement in the hair dyeing power cannot be expected.

[0044] The present invention contains (D) an oily component that is liquid at 25°C from the viewpoints of hair dyeing power, hair dyeing power when stored at low temperatures and high temperatures, and high-temperature stability.

[0045] The component (D) used in the present invention is not particularly limited, but examples thereof include hydrocarbon oils, fats and oils, alkyl glyceryl ethers, ester oils, silicone oils, etc., and the present invention contains at least one selected from these.

[0046] Specific examples of the hydrocarbon oil include liquid paraffin, light isoparaffin, light liquid isoparaffin, liquid isoparaffin, heavy liquid isoparaffin, and squalane.

[0047] Specific examples of the oils and fats include almond oil, olive oil, camellia oil, sunflower oil, rapeseed oil, rice bran oil, rice germ oil, grape seed oil, macadamia nut oil, castor oil, coconut oil, evening primrose oil, avocado oil, peach kernel oil, rosehip oil, argan oil, orange oil, ylang-ylang flower oil, apricot kernel oil, corn oil, pomegranate seed oil, sesame oil, spearmint oil, camellia reginae seed oil, peppermint oil, Hippophae rhamnoides seed oil, Nigella sativa seed oil, bergamot seed oil, hemacystus seed oil, mink oil, meadowfoam oil, eucalyptus oil, camellia sinensis oil, lemon fruit oil, rosemary oil, sunflower oil, peanut oil, cottonseed oil, pistachio oil, and kukui nut oil.

[0048] Specific examples of the alkyl glyceryl ether include ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, diethylene glycol monoethyl ether, batyl alcohol, chimyl alcohol, selachyl alcohol, isostearyl glyceryl ether, and diisononyl ether.

[0049] Specific examples of the ester oil include isopropyl myristate, butyl myristate, isopropyl palmitate, ethyl stearate, butyl stearate, ethyl oleate, ethyl linoleate, isopropyl linoleate, cetyl caprylate, hexyl laurate, decyl myristate, myristyl myristate, cetyl myristate, decyl oleate, oleyl oleate, cetyl ricinoleate, isostearyl laurate, isotridel myristate, 2-hexyldecyl myristate, isostearyl myristate, and 2-octyl myristate. Tyldodecyl, 2-ethylhexyl palmitate, 2-hexyldecyl palmitate, isostearyl palmitate, 2-ethylhexyl stearate, 2-hexyldecyl stearate, isodecyl oleate, 2-octyldodecyl oleate, 2-octyldodecyl linoleate, ethyl isostearate, isopropyl isostearate, cetyl 2-ethylhexanoate, cetostearyl 2-ethylhexanoate, stearyl 2-ethylhexanoate, hexyl isostearate, ethylene glycol di-2-ethylhexanoate, ethylene glycol dioleate Cole, Propylene Glycol Dicaprylate, Propylene Glycol Dicaprylate / Caprate, Propylene Glycol Dicaprate, Neopentyl Glycol Dicaprylate, Neopentyl Glycol Di-2-Ethylhexanoate, Glyceryl Tricaprylate, Glyceryl Tri-2-Ethylhexanoate, Caprylic / Capric Triglyceride, Glyceryl Triundecylate, Glyceryl Triisopalmitate, Glyceryl Triisostearate, Trimethylolpropane Tri-2-Ethylhexanoate, Trimethylolpropane Triisostearate, Tet Examples of suitable isopropyl alcohol include pentaerythritol 2-ethylhexanoate, pentaerythritol tetramyristate, pentaerythritol tetraisostearate, 2-octyldodecyl neopentanoate, 2-hexyldecyl 2-ethylhexanoate, isostearyl 2-ethylhexanoate, 2-ethylhexyl isononanoate, 2-hexyldecyl dimethyloctanoate, 2-octyldodecyl dimethyloctanoate, 2-ethylhexyl isopalmitate, 2-hexyldecyl isostearate, isostearyl isostearate, and 2-octyl isostearate.

[0050] Specific examples of the silicone oil include dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, methylcyclopolysiloxane, alcohol-modified silicone, alkyl-modified silicone, amino-modified silicone, and polyether-modified silicone.

[0051] Of the components (D) used in the present invention, one or more selected from liquid paraffin, liquid isoparaffin, 2-ethylhexyl palmitate, and squalane are preferred.

[0052] The content of the component (D) used in the present invention is preferably 1 to 10%, more preferably 2 to 10%. If the content of the component (D) is less than 1%, the hair dyeing power, the hair dyeing power when stored at low temperatures, and the hair dyeing power when stored at high temperatures may decrease, and high-temperature stability may not be maintained. If the content of the component (D) exceeds 10%, further improvements in the hair dyeing power, the hair dyeing power when stored at low temperatures, the hair dyeing power when stored at high temperatures, and the high-temperature stability cannot be expected.

[0053] The present invention contains a cationic surfactant (E) from the viewpoint of high temperature stability.

[0054] The component (E) used in the present invention is not particularly limited, but examples thereof include lauryltrimethylammonium chloride, dicocoyldimethylammonium chloride, cetyltrimethylammonium chloride, stearyltrimethylammonium chloride, behenyltrimethylammonium chloride, distearyldimethylammonium chloride, cetyltrimethylammonium bromide, stearyltrimethylammonium bromide, and behenyltrimethylammonium bromide, and the composition may contain at least one selected from these.

[0055] Of the components (E) used in the present invention, one or more selected from the group consisting of behenyltrimethylammonium chloride, stearyltrimethylammonium chloride, and cetyltrimethylammonium chloride are preferred.

[0056] The content of the component (E) used in the present invention is preferably 0.5 to 5%, more preferably 2 to 5%. If the content of the component (E) is less than 0.5%, high-temperature stability may not be maintained. If the content of the component (E) is more than 5%, further improvement in high-temperature stability cannot be expected.

[0057] From the viewpoint of high temperature stability, the present invention contains (F) a higher alcohol having 14 to 22 carbon atoms.

[0058] The component (F) used in the present invention is not particularly limited, but examples thereof include myristyl alcohol, cetyl alcohol, stearyl alcohol, arachyl alcohol, and behenyl alcohol, and at least one selected from these may be contained.

[0059] Of the components (F) used in the present invention, one or more selected from myristyl alcohol, cetyl alcohol, and stearyl alcohol are preferred, and cetyl alcohol, or a combination of cetyl alcohol and stearyl alcohol, is more preferred.

[0060] The content of the component (F) used in the present invention is preferably 1 to 10%, more preferably 5 to 10%. If the content of the component (F) is less than 1%, high-temperature stability may not be maintained. If the content of the component (F) exceeds 10%, further improvement in high-temperature stability cannot be expected.

[0061] In addition to the essential components described above, the hair dye composition of the present invention may contain at least one or more components selected from various components used in ordinary cosmetics, quasi-drugs, pharmaceuticals, etc., within the range that does not impair the effects of the present invention, such as basic dyes other than component (A) and component (B), HC dyes and other various direct dyes, acid dyes, polymeric compounds, oily components that are liquid at 25°C other than component (D), surfactants other than component (E), humectants, thickeners, medicinal ingredients, protein derivatives, hydrolyzed proteins, amino acids, sequestering agents, antioxidants, plant extracts, herbal extracts, vitamins, preservatives, coloring materials, pigments, powders, pH adjusters, ultraviolet absorbers, fragrances, etc. However, the components are not limited to these examples.

[0062] The hair dye composition of the present invention is used in the form of a emulsion, cream, or the like, and from the viewpoint of application properties, the cream form is preferred.

[0063] The viscosity of the hair dye composition of the present invention is not particularly limited, but from the viewpoint of ease of dispensing from a container and ease of application, the viscosity is preferably 5,000 to 100,000 mPa·s at 20° C. If the viscosity is less than 5,000 mPa·s or more than 100,000 mPa·s, it may be difficult to dispense from a container and apply to hair.

[0064] The viscosity of the hair dye composition of the present invention at 20°C was measured by filling 120 g of the hair dye composition prepared by conventional methods into a sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.), leaving it to stand at 20°C for 24 hours, and then rotating it at 6 rpm for 1 minute using a B-type viscometer (model: digital viscometer TVB-10M, manufactured by Toki Sangyo Co., Ltd.) with an M4 rotor, and then measuring the viscosity.

[0065] The pH of the hair dye composition of the present invention is preferably 3 to 6, more preferably 4 to 6, at 20°C.

[0066] The pH of the hair dye composition of the present invention at 20°C is determined by filling 120 g of the hair dye composition prepared by conventional methods into a sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.), leaving it at 20°C for 24 hours, and then measuring the pH of the original solution using a glass electrode hydrogen ion concentration indicator (F-71, manufactured by Horiba, Ltd.).

[0067] The hair dye composition used in the present invention is filled in various containers such as plastic containers, aluminum tube containers, aerosol containers, pouch containers, and jar containers, and is stored until use. [Example]

[0068] The present invention will be described in more detail below with reference to examples, but the present invention is not limited thereto. Numerical values ​​are in mass % unless otherwise specified.

[0069] In the evaluation tests shown in this specification, "hair dyeing power," "hair dyeing power when stored at low temperatures," "hair dyeing power when stored at high temperatures," "skin staining," "high temperature stability," and "color tone" were evaluated by the following methods.

[0070] "Hair dyeing power" 1 g of each hair dye composition according to each Example and Comparative Example was evenly applied to a hair tress (product number: BR-1-A, manufactured by Beaulux Co., Ltd.; 10 cm, 1 g) with a brightness level equivalent to 11. After leaving it for 10 minutes, the tress was thoroughly rinsed with water and dried using a hair dryer to prepare a hair tress for evaluation. Ten expert panelists visually evaluated the tress according to the following criteria. <Evaluation criteria> ◎: Eight or more out of ten people evaluated that the dyed hair color was clear, dyed deeply, and had strong dyeing power. Good: 6 to 7 out of 10 people rated the dyed hair color as being clear, dark, and having strong dyeing power. △: 4 to 5 out of 10 people evaluated that the dyed hair color was clear, dyed deeply, and had strong dyeing power. ×: Three or fewer people out of ten evaluated that the dyed hair color was clear, the dye was deep, and the dyeing power was high.

[0071] "Hair dyeing power when stored at low temperatures" 120 g of each hair dye composition according to each Example and Comparative Example was placed in a sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.) and stored in a thermostatic chamber at 5°C for 3 months. After 1 month, 2 months, and 3 months, the hair dye compositions stored were returned to 25°C, and 1 g of each hair dye composition was uniformly applied to a hair tress (product number: BR-1-A, manufactured by Beaulux Co., Ltd.; 10 cm, 1 g) corresponding to brightness level 11. After leaving the composition for 10 minutes, the composition was thoroughly rinsed with water and dried using a hair dryer to prepare an evaluation hair tress. These evaluation hair tresses were compared with evaluation hair tresses dyed in the same manner with the hair dye composition immediately after preparation, and a professional panelist visually evaluated the results according to the following criteria. <Evaluation criteria> ⊚: After a storage period of 3 months, the hair dyeing power was evaluated to be equal. Good: The hair dyeing power was equivalent up to two months of storage, but was evaluated as inferior after three months of storage. △: The hair dyeing power was equivalent up to one month of storage, but was evaluated as inferior after two months of storage. ×: After a storage period of 1 month, the hair dyeing power was evaluated as poor.

[0072] "Hair dyeing power when stored at high temperatures" 120 g of each hair dye composition according to each Example and Comparative Example was placed in a sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.) and stored in a thermostatic chamber at 40°C for 6 months. After 1 month, 2 months, 3 months, and 6 months, the stored hair dye compositions were returned to 25°C, and 1 g of each was uniformly applied to a hair tress (product number: BR-1-A, manufactured by Beaulux Co., Ltd.; 10 cm, 1 g) corresponding to brightness level 11. After leaving the composition for 10 minutes, the composition was thoroughly rinsed with water and dried using a hair dryer to prepare an evaluation hair tress. These evaluation hair tresses were compared with evaluation hair tresses dyed in the same manner with the hair dye composition immediately after preparation, and a professional panelist visually evaluated the results according to the following criteria. <Evaluation criteria> ◎: After a storage period of 6 months, the hair dyeing power was evaluated to be equal. Good: The hair dyeing power was equivalent up to a storage period of 3 months, but was evaluated as inferior after a storage period of 6 months. △: The hair dyeing power was equivalent up to 2 months of storage, but was evaluated as inferior after 3 months of storage. ×: After a storage period of 1 month, the hair dyeing power was evaluated as poor.

[0073] "Prevents scalp stains" 1 g of each hair dye composition according to each Example and Comparative Example was applied to a square area measuring 2 cm on each side on the inside of the arm, left for 10 minutes, and then rinsed off with warm water. Next, the area was gently rubbed with soapy fingers for 30 seconds, and then rinsed off with warm water. After the above treatment, the scalp staining (degree of dyeing on the skin) was visually observed by 10 expert panelists and evaluated according to the following evaluation criteria, and the average score (rounded to one decimal place) was used for evaluation. <Evaluation criteria> 4 points: Almost no staining remained on the skin. 3 points: Some staining remains on the skin, but it is not noticeable. 2 points: The stain remained on the skin and was evaluated as being somewhat bothersome. 1 point: The staining on the skin was very bothersome. <Evaluation criteria> ◎: Average rating is 3.2 or higher. 〇: Average rating is between 2.5 and 3.2. △: Average rating is between 2.0 and 2.5. ×: Average rating is less than 2.0.

[0074] "High temperature stability" 120 g of each hair dye composition according to each Example and Comparative Example was placed in a sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.) and stored at 40°C and 50°C for 3 months, respectively, and the state of separation was visually evaluated. <Evaluation criteria> ○: No separation was observed under both storage conditions of 40℃ and 50℃. △: Separation was not observed under storage conditions at 40°C, but separation was observed under storage conditions at 50°C. ×: Separation was observed under both storage conditions of 40°C and 50°C.

[0075] "Tone" 1 g of each hair dye composition according to each Example and Comparative Example was evenly applied to a hair bundle (product number: BR-1-A, manufactured by Beaulux Co., Ltd.; 10 cm, 1 g) with a brightness level equivalent to 11. After leaving it for 10 minutes, the hair bundle for evaluation was thoroughly rinsed with water and dried using a hair dryer, and then visually evaluated by one expert panelist.

[0076] [Table 1]

[0077] Examples 1 to 12 shown in Table 1 showed good results in terms of "hair dyeing power," "hair dyeing power when stored at low temperatures," "hair dyeing power when stored at high temperatures," "skin staining," and "high temperature stability."

[0078] [Table 2]

[0079] From Comparative Examples 1 to 7 shown in Table 2, when (A) Basic Blue 75, HC Blue 2, HC Blue 15, (B2) Basic Purple 2, Basic Red 76, (B3) HC Yellow 2, HC Yellow 4 were combined, good results were not obtained in terms of "hair dyeing power when stored at low temperatures," "hair dyeing power when stored at high temperatures," or "skin staining."

[0080] [Table 3]

[0081] Examples 13 to 25 shown in Table 3 showed good results in each of "hair dyeing power," "hair dyeing power when stored at low temperatures," "hair dyeing power when stored at high temperatures," "skin staining," and "high temperature stability."

[0082] From Examples 1 to 12 in Table 1 and Examples 13 to 25 in Table 3, it can be seen that when the component (B1) is contained, the mass ratio of the content of the component (A) to the component (B1) [(A) / (B1)] is preferably 0.2 to 10. It can also be seen that when the component (B2) is contained, the mass ratio of the content of the component (A) to the component (B2) [(A) / (B2)] is preferably 0.1 to 3. It can also be seen that when the component (B3) is contained, the mass ratio of the content of the component (A) to the component (B3) [(A) / (B3)] is preferably 0.17 to 3.

[0083] [Table 4]

[0084] Examples 26 to 36 shown in Table 4 showed good results in each of "hair dyeing power," "hair dyeing power when stored at low temperatures," "hair dyeing power when stored at high temperatures," "skin staining," and "high temperature stability." Examples 26 to 36 also show that the content of component (C) is preferably 2 to 15%, more preferably 3 to 15%, and even more preferably 5 to 15%.

[0085] [Table 5]

[0086] Examples 37 to 42 shown in Table 5 showed good results in terms of "hair dyeing power," "hair dyeing power when stored at low temperatures," "hair dyeing power when stored at high temperatures," "skin staining," and "high temperature stability." Examples 37 to 42 also show that the content of component (D) is preferably 1 to 10%, more preferably 2 to 10%.

[0087] [Table 6]

[0088] From Examples 43 to 47 shown in Table 6, it can be seen that the content of the component (E) is preferably 0.5 to 5%, more preferably 2 to 5%.

[0089] [Table 7]

[0090] Examples 48 to 52 shown in Table 7 showed good results in terms of "hair dyeing power," "hair dyeing power when stored at low temperatures," "hair dyeing power when stored at high temperatures," "skin staining," and "high temperature stability." Examples 48 to 52 also show that the content of component (F) is preferably 1 to 10%, more preferably 5 to 10%.

[0091] Formulation examples of the compositions are given below. The hair dye compositions shown in Examples 53 to 55 below gave good results in terms of "hair dyeing power," "hair dyeing power when stored at low temperatures," "hair dyeing power when stored at high temperatures," "skin staining," and "high temperature stability."

[0092] <Example 53> (Hair dye composition) Component Content (%) (A) Basic Blue 124 0.050 (B1) Basic Red 51 0.020 (B3) Basic Brown 16 0.030 (C) Ethylene glycol 4.500 (C) 1,3-butylene glycol 2.700 (C) Glycerin 1.800 (D) Liquid paraffin 6.000 (E) Behenyltrimethylammonium chloride 3.500 (F) Cetyl alcohol 4.200 (F) Stearyl alcohol 1.800 Citric acid 0.025 Sodium citrate 0.110 Methyl parahydroxybenzoate 0.200 Purified water 75.065 Total 100,000 The hair dye composition shown in Example 53 has a viscosity of 27,700 mPa·s at 20°C, a pH of 4.9 at 20°C, and a grayish blue color.

[0093] (Hair dye composition) <Example 54> Component Content (%) (A) Basic Blue 124 0.028 (B1) Basic Red 51 0.004 (B2) Basic Yellow 57 0.080 (B3) Basic Brown 16 0.080 (C) Ethylene glycol 4.500 (C) 1,3-butylene glycol 2.700 (C) Glycerin 1.800 (D) Liquid paraffin 6.000 (E) Behenyltrimethylammonium chloride 3.500 (F) Cetyl alcohol 4.200 (F) Stearyl alcohol 1.800 Citric acid 0.025 Sodium citrate 0.110 Methyl parahydroxybenzoate 0.200 Purified water 74.973 Total 100,000 The hair dye composition shown in Example 54 has a viscosity of 28,000 mPa·s at 20°C, a pH of 5.0 at 20°C, and a deep green color.

[0094] (Hair dye composition) Example 55 Component Content (%) (A) Basic Blue 124 0.040 (B1) Basic Red 51 0.020 (C) Ethylene glycol 4.500 (C) 1,3-butylene glycol 2.700 (C) Glycerin 1.800 (D) 2-Ethylhexyl palmitate 2.500 (D) Liquid paraffin 2.500 (E) Stearyltrimethylammonium chloride 2.500 (F) Cetyl alcohol 4.200 (F) Stearyl alcohol 1.800 Citric acid 0.025 Sodium citrate 0.110 Methyl parahydroxybenzoate 0.200 Purified water 77.105 Total 100,000 The hair dye composition shown in Example 55 has a viscosity of 25,900 mPa·s at 20°C, a pH of 4.8 at 20°C, and a navy blue color. [Industrial Applicability]

[0095] According to the present invention, there is provided a hair dye composition containing a specific basic dye, which has high hair dyeing power, good hair dyeing power when stored at low temperatures and high temperatures, inhibits scalp staining, and has excellent high-temperature stability.

Claims

1. (A) Basic Blue 124 The component (B) is at least one selected from (B1) Basic Red 51, Basic Orange 31, (B2) Basic Yellow 57, Basic Yellow 87, or (B3) Basic Brown 16, Basic Brown 17. (C) one or more selected from ethylene glycol, 1,3-butylene glycol, and glycerin (D) an oily component that is liquid at 25°C (E) Cationic surfactant (F) Higher alcohols having 14 to 22 carbon atoms The hair dye composition contains the above-mentioned components (C) in an amount of 5 to 15% by mass and (D) in an amount of 2 to 10% by mass.

2. 2. The hair dye composition according to claim 1, wherein the component (D) is at least one selected from the group consisting of liquid paraffin, liquid isoparaffin, 2-ethylhexyl palmitate, and squalane.

3. (A) Basic Blue 124 The component (B) is at least one selected from (B1) Basic Red 51, Basic Orange 31, (B2) Basic Yellow 57, Basic Yellow 87, or (B3) Basic Brown 16, Basic Brown 17. (C) one or more selected from ethylene glycol, 1,3-butylene glycol, and glycerin (D) an oily component that is liquid at 25°C (E) Cationic surfactant (F) Higher alcohols having 14 to 22 carbon atoms Contains The hair dye composition contains, as the component (B), When the hair dye composition contains the component (B1), the mass ratio [(A) / (B1)] of the content of the component (A) in the hair dye composition to the content of the component (B1) in the hair dye composition is 0.2 to 10; When the hair dye composition contains the component (B2), the mass ratio [(A) / (B2)] of the content of the component (A) in the hair dye composition to the content of the component (B2) in the hair dye composition is 0.1 to 3; When the hair dye composition contains the component (B3), the mass ratio [(A) / (B3)] of the content of the component (A) in the hair dye composition to the content of the component (B3) in the hair dye composition is 0.17 to 3; A hair dye composition having an ash-based hair color, wherein the content of the component (C) is 5 to 15% by mass and the content of the component (D) is 2 to 10% by mass.

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