Acidic Dye Wool Composition

Abstract

To provide an acidic hair dye composition that is excellent in hair dyeability as well as storage stability of the agent, and is also excellent in the softness of the air-dried hair.SOLUTION: A acidic hair dye composition contains an aromatic alcohol (A) 0.5-12 mass%, an ester oil (B) with an inorganic value of 100 or more and an IOB value of 0.28-1.2, a polyacrylate crosspolymer -6 (C) 0.3-1.5 mass%, and a higher alcohol (D) 2-8 mass%. The mass ratio ((B) / (A)) of the aromatic alcohol (A) to the ester oil (B) is 0.6-2.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to an acidic hair dye composition.

Background Art

[0002] An acidic hair dye is a one-component colorant also called hair manicure or acid color. An acidic hair dye generally contains a dye, a penetrant for allowing the dye to penetrate into the hair, and a thickener for achieving a viscosity suitable for application.

[0003] Among these components, since the dye uses water as a solvent while the penetrant is an organic solvent such as benzyl alcohol, they are difficult to mix uniformly, and separation and aggregation of the acidic hair dye are likely to occur. In particular, when the amount of the penetrant is increased for the purpose of improving the dyeing property, there has been a problem that the storage stability of the acidic hair dye decreases. Therefore, technical studies have been conducted to achieve both improvement in dyeing property and improvement in storage stability.

[0004] As a conventional technique, for example, there is a method of highly dispersing a penetrant in water using a surfactant. In this method, although the dispersibility is improved and the storage stability is enhanced, a new problem of decreased dyeing property has occurred. To address this problem, Patent Document 1 discloses an invention in which an acidic hair dye composition containing an acidic dye and a dye penetrant having a hydrophobic portion in a water-based solvent and adjusted to a pH in the acidic range exhibits good hair dyeing properties even when the amount of the acidic dye is not large. Patent Document 2 discloses an invention in which the storage stability is improved while maintaining a high hair dyeing power in a hair dye composition containing a direct dye.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, in the technology of Patent Document 1, although the hair dyeing property is improved, the storage stability is not a satisfactory quality. In the technology of Patent Document 2, although the storage stability is improved, the finished hair is hard and has a crunch, and it is not a satisfactory quality.

[0007] While conducting studies to achieve both improved dyeing property and improved storage stability, the present inventors increased the miscibility of water and an organic solvent by blending a large amount of ethanol, and aimed to improve the dyeing property and storage stability. However, in this formulation, although the dyeing property and storage stability were improved, a viscosity suitable for application could not be obtained unless a larger amount of thickener than before was blended. It was also found that a large amount of the thickener contained in the agent remained in the hair, making the finished hair hard and causing crunch.

[0008] From the above, an object of the present invention is to provide an acidic hair dye composition that is excellent in the dyeing property to hair, the storage stability of the agent, and the softness of the hair after air drying.

Means for Solving the Problems

[0009] The present inventors intensively studied to solve the above problems. As a result, they found that an acidic hair dye composition having the following configuration can solve the above problems, and thus completed the present invention. The present invention is, for example, the following [1] to [6].

[0010] [1] An acidic hair dye composition containing 0.5 to 12% by mass of aromatic alcohol (A), an ester oil (B) having an inorganic value of 100 or more and an IOB value of 0.28 to 1.2, 0.3 to 1.5% by mass of polyacrylate crosspolymer-6 (C), and 2 to 8% by mass of higher alcohol (D), wherein the mass ratio ((B) / (A)) of the aromatic alcohol (A) to the ester oil (B) is 0.6 to 2. [2] The acid hair dye composition according to [1], further comprising an alkyl glucoside (E). [3] The acid hair dye composition according to [1] or [2], wherein the aromatic alcohol (A) is at least one selected from the group consisting of benzyl alcohol, phenylpropanol, benzyloxyethanol, and phenoxyethanol. [4] The acid hair dye composition according to any one of [1] to [3], wherein the ester oil (B) is at least one selected from the group consisting of diethyl sebacate, diisopropyl adipate, glyceryl tri (caprylate / caprate), diethylhexyl adipate, and diethylhexyl succinate. [5] The acid hair dye composition according to any one of [1] to [4], wherein the higher alcohol (D) is a higher alcohol having 14 to 22 carbon atoms. [6] The acid hair dye composition according to any one of [1] to [5], wherein the dosage form is emulsion or cream. [Effect of the Invention]

[0011] According to the present invention, it is possible to provide an acid hair dye composition that is excellent in dyeing property to hair, storage stability of the agent, and softness of hair after air drying. [Embodiments for Carrying Out the Invention]

[0012] Next, the acid hair dye composition of the present invention will be specifically described. [Acid Hair Dye Composition] The acid hair dye composition of the present invention contains 0.5 to 12% by mass of an aromatic alcohol (A), an ester oil (B) having an inorganic value of 100 or more and an IOB value of 0.28 to 1.2, 0.3 to 1.5% by mass of a polyacrylate crosspolymer-6 (C), and 2 to 8% by mass of a higher alcohol (D), and the mass ratio ((B) / (A)) of the aromatic alcohol (A) to the ester oil (B) is 0.6 to 2.

[0013] [Aromatic Alcohol (A)] The acid hair dye composition of the present invention contains 0.5 to 12% by mass, preferably 3 to 10% by mass, of aromatic alcohol (A).

[0014] By containing the aromatic alcohol (A) in the above amount, the acid hair dye composition of the present invention is excellent in dyeing property and leveling property, and also excellent in storage stability. When the aromatic alcohol (A) is less than the lower limit amount, the dyeing property and leveling property may deteriorate. When it is more than the upper limit amount, separation and aggregation may occur and the storage stability may deteriorate, and it may be difficult to uniformly apply it to the hair.

[0015] Examples of the aromatic alcohol (A) include benzyl alcohol, phenylpropanol, benzyloxyethanol, 2-phenylethyl alcohol, cinnamyl alcohol, 1-phenoxy-2-propanol, phenyldiglycol, α-methylbenzyl alcohol, dimethylbenzyl carbinol, benzyloxyethanol, phenoxyethanol, phenoxyisopropanol, and p-anisyl alcohol. Among these, it is preferable that the aromatic alcohol (A) is at least one selected from the group consisting of benzyl alcohol, phenylpropanol, benzyloxyethanol, and phenoxyethanol, and benzyl alcohol is more preferable because of its particularly excellent dyeing property. The aromatic alcohol (A) may be used alone or in combination of two or more.

[0016] <Ester oil (B)> The acid hair dye composition of the present invention contains an ester oil (B) (hereinafter, also simply referred to as "component (B)") having an inorganic value of 100 or more and an IOB value of 0.28 to 1.2, preferably 0.28 to 0.8.

[0017] In the acid hair dye composition of the present invention, the mass ratio ((B) / (A)) of the aromatic alcohol (A) to the component (B) is 0.6 to 2, preferably 0.8 to 2, more preferably 0.8 to 1.5.

[0018] In the present invention, the organic value, inorganic value, and IOB value are values determined based on the Organic Conceptual Diagram (written by Yoshio Koda, published by Sankyo Publishing Co., Ltd., issued in 1984). Specifically, regarding the physicochemical properties of a compound, the degree of physical properties mainly due to the Van Der Waals force is defined as organic, and the degree of physical properties mainly due to the electrical affinity is defined as inorganic. The values expressed as such are the organic value (also denoted as OV) and the inorganic value (also denoted as IV). The IOB value can be obtained as IOB value = (inorganic value) / (organic value) as an index indicating the balance between organic and inorganic properties.

[0019] Generally, it is considered that a compound with a smaller IOB value exhibits more hydrophobic properties, and a compound with a larger IOB value exhibits more hydrophilic properties. Component (B) is an ester oil having an inorganic value of 100 or more and an IOB value of 0.28 to 1.2, and thus has excellent leveling property and storage stability.

[0020] The acid dyeing material composition of the present invention has excellent storage stability because the mass ratio ((B) / (A)) of the aromatic alcohol (A) and the component (B) is the above value. If the inorganic value of the component (B) is less than 100, the leveling property may deteriorate. If the mass ratio ((B) / (A)) of the aromatic alcohol (A) and the component (B) is less than the lower limit value, the leveling property and storage stability may deteriorate.

[0021] Examples of component (B) include diethyl sebacate (OV = 280, IV = 120, IOB value = 0.43), diethoxyethyl succinate (OV = 240, IV = 270, IOB value = 1.13), diisopropyl adipate (OV = 220, IV = 120, IOB value = 0.55), glyceryl tri (caprylate / caprate) (OV = 540, IV = 180, IOB value = 0.33), diethylhexyl adipate (OV = 420, IV = 120, IOB value = 0.29), distearyl malate (OV = 780, IV = 220, IOB value = 0.28), 2-ethylhexyl hydroxystearate (OV = 510, IV = 160, IOB value = 0.31), di-2-ethylhexyl succinate (OV = 380, IV = 120, IOB value = 0.32), propylene glycol dicaprylate (OV = 370, IV = 120, IOB value = 0.32), neopentyl glycol di-2-ethylhexanoate (OV = 380, IV = 240, IOB value = 0.32), polyglyceryl-2 isostearate (OV = 470, IV = 380, IOB = 0.81), polyglyceryl-2 diisostearate (OV = 820, IV = 340, IOB value = 0.41), octyldodecyl lactate (OV = 450, IV = 160, IOB = 0.36), diisopropyl sebacate (OV = 300, IV = 120, IOB value = 0.40), and pentaerythrityl tetra-2-ethylhexanoate (OV = 680, IV = 240, IOB value = 0.35).

[0022] Among these, it is preferable that component (B) is at least one selected from the group consisting of diethyl sebacate, diisopropyl adipate, glyceryl tri (caprylate / caprate), diethylhexyl adipate, and di-2-ethylhexyl succinate. More preferably, it is at least one selected from the group consisting of diethyl sebacate, diisopropyl adipate, glyceryl tri (caprylate / caprate), and diethylhexyl adipate. Since it is particularly excellent in emulsifying action and storage stability and is inexpensive, it is even more preferable that component (B) is at least one selected from the group consisting of diethyl sebacate and glyceryl tri (caprylate / caprate). Component (B) may be used alone or in combination of two or more thereof.

[0023] <Polyacrylate Crosspolymer-6 (C)> The acid hair dye composition of the present invention contains 0.3 to 1.5% by mass, preferably 0.3 to 1.0% by mass, more preferably 0.5 to 0.9% by mass of polyacrylate crosspolymer-6 (C).

[0024] By containing polyacrylate crosspolymer-6 (C) in the above amount, the acid hair dye composition of the present invention is excellent in coatability. When the amount of polyacrylate crosspolymer-6 (C) is less than the lower limit, the storage stability may be poor, and the coatability and level dyeing property may be deteriorated. When it is more than the upper limit, the coatability may be deteriorated.

[0025] <Higher Alcohol (D)> The acid hair dye composition of the present invention contains 2 to 8% by mass, preferably 2.5 to 6% by mass, more preferably 2.5 to 5.5% by mass of higher alcohol (D).

[0026] When the amount of higher alcohol (D) is less than the lower limit, the coatability may be deteriorated. When it is more than the upper limit, separation and aggregation may occur, the storage stability may be deteriorated, and the coatability and level dyeing property may tend to be deteriorated. In addition, the softness of the hair at the time of rinsing and after finishing may be reduced.

[0027] Examples of the higher alcohol (D) include monohydric higher alcohols having a linear or branched alkyl group or alkenyl group having 14 to 22 carbon atoms. The higher alcohol (D) is preferably a higher alcohol having 14 to 22 carbon atoms, more preferably 18 to 22 carbon atoms. The higher alcohol (D) may be a saturated alcohol or an unsaturated alcohol, but a saturated alcohol is preferred because it is excellent in the effect of imparting stability to the agent.

[0028] As the higher alcohol (D), specifically, cetearyl alcohol, behenyl alcohol, (C20-22) alcohol, myristyl alcohol, cetanol, stearyl alcohol, arachyl alcohol, and oleyl alcohol can be mentioned.

[0029] Among these, it is preferable that the higher alcohol (D) is at least one selected from the group consisting of cetearyl alcohol, behenyl alcohol, stearyl alcohol, and (C20-22) alcohol. Since it is particularly excellent in the softness of hair, it is more preferable that the higher alcohol (D) is behenyl alcohol. The higher alcohol (D) may be used alone or in combination of two or more.

[0030] When behenyl alcohol and (C20-22) alcohol are used in combination as the higher alcohol (D), the mass ratio of behenyl alcohol to (C20-22) alcohol ((behenyl alcohol):((C20-22) alcohol)) is preferably 1:0.8 to 1:3.5 because it has a viscosity suitable for application.

[0031] <alkyl glucoside (E)> The acidic hair dye composition of the present invention preferably further contains an alkyl glucoside (E).

[0032] The acidic hair dye composition of the present invention preferably contains 0.3 to 1% by mass of the alkyl glucoside (E). The acidic hair dye composition of the present invention preferably contains the alkyl glucoside (E) because it has better spreadability.

[0033] As the alkyl glucoside (E), specifically, arachidyl glucoside, cetearyl glucoside, lauryl glucoside, myristyl glucoside, cetyl glucoside, and stearyl glucoside can be mentioned.

[0034] Among these, it is preferable that the alkyl glucoside (E) is at least one selected from the group consisting of arachidyl glucoside and cetearyl glucoside, and since it is particularly excellent in storage stability, it is more preferable that the alkyl glucoside (E) is arachidyl glucoside. The alkyl glucoside (E) may be used alone or in combination of two or more.

[0035] <Other components> The acid hair dye composition of the present invention can contain additives such as a pH adjuster, a surfactant, a dye, a humectant, crude drugs, a preservative, an antioxidant, a cooling agent, vitamins, proteins, fragrances, antibacterial agents, thickeners, and pigments, etc., within a range not impairing the effects of the present invention, in addition to the above components.

[0036] Lactic acid can be used as the pH adjuster in the acid hair dye composition of the present invention. When using a surfactant in the acid hair dye composition of the present invention, an anionic surfactant, a cationic surfactant, an amphoteric surfactant, and a nonionic surfactant can be used. For example, Cetes-150 (a polyethylene glycol ether of cetyl alcohol) can be used. When using a surfactant in the acid hair dye composition of the present invention, for example, 0.01 to 5% by mass can be used.

[0037] 〔Dye〕 In the acid hair dye composition of the present invention, a desired dye can be blended within a range not impairing the effects of the present invention. Examples of the dye include acid dyes, HC dyes, and basic dyes.

[0038] In the acid hair dye composition of the present invention, since the dye can be dyed in an acidic state, acid dyes and HC dyes are preferable. The acid dye is more preferably an acid dye among the tar dyes described in the ordinance (Ministry of Health and Welfare Ordinance No. 30 of 1966) that defines tar dyes that can be used in pharmaceuticals, etc.

[0039] As acid dyes, specifically, Red No. 2, Red No. 3, Red No. 102, Red No. 104(1), Red No. 105(1), Red No. 106, Red No. 201, Red No. 230(1), Red No. 230(2), Red No. 231, Red No. 232, Red No. 227, Red No. 401, Red No. 502, Red No. 503, Red No. 504, Red No. 506, Orange No. 205, Orange No. 207, Orange No. 402, Yellow No. 4, Yellow No. 5, Yellow No. 202(1), Yellow No. 202(2), Yellow No. 203, Yellow No. 402, Yellow No. 403(1), Yellow No. 406, Yellow No. 407, Blue No. 1, Blue No. 2, Blue No. 202, Blue No. 203, Blue No. 205, Green No. 201, Green No. 205, Green No. 401, Green No. 402, Purple No. 401, Brown No. 201, Black No. 401 can be mentioned.

[0040] As HC dyes, specifically, HC Blue 2, HC Blue 6, HC Blue 7, HC Blue 8, HC Orange 1, HC Orange 2, HC Orange 3, HC Red 1, HC Red 3, HC Red 7, HC Red 10, HC Red 13, HC Red 14, HC Purple 1, HC Purple 2, HC Yellow 2, HC Yellow 4, HC Yellow 5, HC Yellow 6, 1-amino-2-methyl-6-nitrobenzene, 1-amino-2-methyl-4-methylaminobenzene, 4-(2-hydroxyethyl)amino-3-nitro-methylbenzene, 1-bis(β-hydroxyethyl)amino-3-nitro-4-amino, 1-amino-2-benzene(β-hydroxypropylamino)benzene, 1-hydroxy-3-nitro-4-(3-hydrotoxypropylamino)benzene, 4-hydroxypropylamino-3-nitrophenol can be mentioned.

[0041] As basic dyes, specifically, Red No. 213, Red No. 214, Basic Blue 7, Basic Blue 9, Basic Blue 26, Basic Blue 75, Basic Blue 99, Basic Red 2, Basic Red 22, Basic Red 51, Basic Red 76, Basic Yellow 57, Basic Yellow 87, Basic Orange 31, Basic Brown 16, Basic Brown 17, Basic Purple 3, Basic Purple 4, Basic Purple 14 can be mentioned. The dyes may be used alone or in combination of two or more.

[0042] 〔Natural pigments〕 The acid hair dye composition of the present invention may contain natural pigments as necessary, as long as the effects of the present invention are not impaired. As natural pigments, those that have been used for food, cosmetics, etc. since ancient times are preferable from the viewpoints of safety and color tone. For example, natural pigments described in cosmetic raw material standards, cosmetic category approval standards I to V, quasi-drug raw material specifications, food additive compendiums, etc. can be used.

[0043] Specifically, gardenia pigment, turmeric pigment, annatto pigment, copper chlorophyll, paprika pigment, and lac dye are preferable as natural pigments. The natural pigment may be used alone or in combination of two or more, and may also be used in combination with the above-mentioned dye and natural pigment.

[0044] <Manufacture, etc. of acid hair dye composition> The acid hair dye composition of the present invention can be produced by, for example, a known method such as stirring, mixing, heating, dissolving, and dispersing, except that the above-mentioned components are used in the above-mentioned amounts, and the production method is not particularly limited. The acid hair dye composition of the present invention is preferably in a single-agent form.

[0045] 〔Dosage form〕 The dosage form of the acid hair dye composition of the present invention is not particularly limited, and examples include emulsion, cream, gel, lotion, liquid, and foam. Among these, the dosage form is preferably emulsion or cream. The acid hair dye composition of the present invention can also be used as a spray composition by using it together with a propellant.

[0046] 〔Use〕 The acid hair dye composition of the present invention can be used by applying or spraying it on the hair. When applying it to the hair, an appropriate amount can be applied with a comb or a brush. After applying it to the hair, it is preferably heated at 20 to 50°C, preferably 40°C, for 1 to 30 minutes as necessary. The acidic hair dye composition of the present invention can be used on the entire hair and can also be used for dyeing a predetermined part of the hair, for example, the white hair part.

Examples

[0047] Next, examples of the present invention will be shown and described in more detail, but the present invention is not limited thereto.

[0048] 〔Examples 1 to 37, Comparative Examples 1 to 9〕 In the examples and comparative examples, commercially available products listed in Table 1 were used.

[0049]

Table 1

[0050] The components were mixed according to the formulations shown in Tables 2 to 6 to produce an acidic hair dye composition as a sample. The numerical values in the formulations of Tables 2 to 6 represent the mass % of each component when the entire acidic hair dye composition is 100 mass %, and show the values converted to pure components.

[0051] 〔Test method〕 A 10 cm bleached human hair lock (manufactured by Bureau Veritas, BR-3-A) was wetted with water and then towel-dried. 1 g of the sample was applied to 1 g of this human hair lock with a brush, and the evaluation item (1) was evaluated for the applicability. The hair lock to which the sample was applied was wrapped with a wrap and left at 40 °C for 15 minutes for dyeing (dyeing treatment). The dyed hair lock was washed with a 10% aqueous solution of Arscope DA-330S (Toho Chemical Industry Co., Ltd.), and the evaluation items (2), (3), and (4) were evaluated for the hair lock after rinsing, after towel-drying, and after air-drying. Subsequently, the evaluation items (5) and (6) were evaluated for the leveling property and the dyeing property of the hair lock after air-drying. For the storage stability of the sample, the evaluation item (7) was evaluated.

[0052] 〔Evaluation method〕 For evaluation items (1) to (5), ten professional panelists (cosmetologists) each conducted a sensory evaluation according to the evaluation criteria. The average of the ten evaluation scores for each evaluation item was calculated, and the average score was evaluated as follows.

[0053] · Evaluation item (1) ◎◎: The average score of the evaluation scores of ten professional panelists (cosmetologists) is 4 or more. ◎: The average score of the evaluation scores of ten professional panelists (cosmetologists) is 3.5 or more and less than 4. ○: The average score of the evaluation scores of ten professional panelists (cosmetologists) is 2.5 or more and less than 3.5. △: The average score of the evaluation scores of ten professional panelists (cosmetologists) is 1.5 or more and less than 2.5. ×: The average score of the evaluation scores of ten professional panelists (cosmetologists) is less than 1.5.

[0054] · Evaluation items (2) to (5) ◎: The average score of the evaluation scores of ten professional panelists (cosmetologists) is 3.5 or more and less than 4. ○: The average score of the evaluation scores of ten professional panelists (cosmetologists) is 2.5 or more and less than 3.5. △: The average score of the evaluation scores of ten professional panelists (cosmetologists) is 1.5 or more and less than 2.5. ×: The average score of the evaluation scores of ten professional panelists (cosmetologists) is less than 1.5.

[0055] 〔Evaluation items and criteria〕 (1) Spreadability The ease of applying the sample when taking the sample with a brush and applying it to the hair bundle was evaluated. 5 points: It is very easy to pick up with a brush, has very good elongation and adhesion, and can be easily and uniformly applied. 4 points: It is easy to pick up with a brush, has good elongation and adhesion, and can be uniformly applied. 3 points: It can be picked up with a brush, and has slightly good elongation and adhesion. 2 points: Due to slightly loose or slightly hard viscosity, it is difficult to pick up with a brush and uniform application is difficult. 1 point: It is very difficult to pick up with a brush and apply because it drips or is too hard.

[0056] (2) Softness during rinsing After the dyeing treatment, the softness of the tuft of hair during rinsing was evaluated by touch. 4 points: Very soft 3 points: Soft 2 points: Slightly hard 1 point: Hard

[0057] (3) Rustling sound after towel drying After the dyeing treatment, the feel of the tuft of hair towel-dried was evaluated by touch. 4 points: Feeling no rustling sound at all, smooth 3 points: Not feeling any rustling sound 2 points: Slightly feeling a rustling sound 1 point: Feeling a strong rustling sound

[0058] (4) Softness after air drying After the dyeing treatment, the softness of the tuft of hair air-dried was evaluated by touch. 4 points: Very soft 3 points: Soft 2 points: Slightly hard 1 point: Hard

[0059] (5) Levelness of dyeing After the dyeing treatment, the degree of dyeing of the tuft of hair air-dried was evaluated visually. 4 points: Without unevenness, dyed very uniformly 3 points: Dyed with almost no unevenness 2 points: Slightly uneven 1 point: Uneven

[0060] (6) Dye-fixability After the dyeing treatment, for the color of the tuft of hair air-dried, using a spectrophotometer (SPECTRO PHOTOMETER NF555, Nippon Denshoku Industries Co., Ltd., standard light source D65), the values in the L * a * b * color system were measured.

[0061] In advance, for the bleached human hair tresses, L * a * b * Values in the color system were measured, and the color difference (ΔE) before and after dyeing was calculated by formula (I). ΔE was evaluated according to the following criteria. The larger the value of ΔE, the better the dyeing property of the sample.

[0062] [Chemical formula]

[0063] L1: L value of the bleached human hair tresses * Value L2: L value of the air-dried tresses after dyeing treatment * Value a1: a value of the bleached human hair tresses * Value a2: a value of the air-dried tresses after dyeing treatment * Value b1: b value of the bleached human hair tresses * Value b2: b value of the air-dried tresses after dyeing treatment * Value

[0064] ◎: The value of ΔE is 45 or more. ○: The value of ΔE is 41 or more and less than 45. △: The value of ΔE is 35 or more and less than 41. ×: The value of ΔE is less than 35.

[0065] (7) Storage stability 40 g of the sample was placed in a polyethylene terephthalate container (manufactured by Takemoto Container Co., Ltd., PEPI-50) and stored at 45 °C for 1 month. For the sample after storage, the presence or absence of separation and the aggregation state of the dye were visually evaluated. ◎: No separation or aggregation 〇: Almost no separation or aggregation △: Slightly separation or aggregation ×: Separation or aggregation

[0066] [Table 2]

[0067] [Table 3]

[0068] [Table 4]

[0069] [Table 5]

[0070] [Table 6]

[0071] The acid hair dye composition products manufactured in Examples 1 to 37 showed good results in the evaluation items (1) to (7). Examples 36 and 37 showed particularly good results. It can be seen that the acid hair dye composition of the present invention is excellent in the dyeing property to hair, the storage stability of the agent, and also excellent in the softness of the hair after air-drying.

[0072] Since the blending amount of component (A) in the acid hair dye composition product manufactured in Comparative Example 1 was less than the specified amount, the leveling property and the dyeing property were poor. Since the blending amount of component (A) in the acid hair dye composition product manufactured in Comparative Example 2 was more than the specified amount and the agent was too loose and dripped, the coating property was poor. Also, the storage stability was poor.

[0073] Since the mass ratio ((B) / (A)) in the acid hair dye composition product manufactured in Comparative Example 3 was lower than the specified value, the storage stability was poor. Since the inorganic value of component (B) in the acid hair dye composition product manufactured in Comparative Example 4 was lower than the specified value, the leveling property and the storage stability were poor.

[0074] The acid dyeing material composition produced in Comparative Example 5 had poor storage stability because the IOB value of component (B) was lower than the specified value. The acid dyeing material composition produced in Comparative Example 6 had a coating property problem because the blending amount of polyacrylate cross-polymer-6 (C) was less than the specified amount, and the agent was too loose and dripped. Also, the leveling property, dyeing property, and storage stability were poor.

[0075] The acid dyeing material composition produced in Comparative Example 7 had a coating property problem because the blending amount of polyacrylate cross-polymer-6 (C) was more than the specified amount, and the agent was too hard. Also, the softness, squeakiness, leveling property, and dyeing property after rinsing and air-drying were poor.

[0076] The acid dyeing material composition produced in Comparative Example 8 had a coating property problem because the blending amount of higher alcohol (D) was less than the specified amount, and the agent was too loose and dripped. The acid dyeing material composition produced in Comparative Example 9 had a coating property problem because the blending amount of higher alcohol (D) was more than the specified amount, and the agent was too hard. Also, the softness, leveling property, and storage stability after rinsing and air-drying were poor.

Claims

1. 0.5 to 12% by mass of aromatic alcohol (A), and an ester oil (B) having an inorganic value of 100 or more and an IOB value of 0.28 to 1.2, and 0.3 to 1.5% by mass of polyacrylate cross polymer - 6 (C), and 2 to 8% by mass of higher alcohol (D), and 0.3 to 1% by mass of at least one alkyl glucoside (E) selected from the group consisting of arachidyl glucoside and cetearyl glucoside, and an acid dyeing material composition, wherein the mass ratio ((B) / (A)) of the aromatic alcohol (A) to the ester oil (B) is 0.6 to 2.

2. The acid dyeing material composition according to claim 1, wherein the aromatic alcohol (A) is at least one selected from the group consisting of benzyl alcohol, phenylpropanol, benzyloxyethanol, and phenoxyethanol.

3. The acid dyeing material composition according to claim 1 or 2, wherein the ester oil (B) is at least one selected from the group consisting of diethyl sebacate, diisopropyl adipate, tri(caprylic / capric acid) glyceryl, diethylhexyl adipate, and diethoxyethyl succinate.

4. The acid dyeing material composition according to any one of claims 1 to 3, wherein the higher alcohol (D) is a higher alcohol having 14 to 22 carbon atoms.

5. The acid dyeing material composition according to any one of claims 1 to 4, wherein the dosage form is emulsion or cream.

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