Hair cleaning agent composition

Abstract

A hair cleaning agent composition which has excellent foaming and foam thickening properties and suppresses yellowing over time, and which contains (A) an amino acid-type surfactant represented by general formula (1), (B) an amphoteric surfactant, (C) an anionic polysaccharide and (D) isoprene glycol, the mass ratio of the total content of component (A) and component (B) to the content of component (D) [{(A) + (B)} / (D)] being 2-8. (R1 represents a linear or branched alkyl group or alkenyl group having 5-23 carbon atoms, or a phenyl group substituted with a linear or branched alkyl group or alkenyl group having 5-23 carbon atoms, R2 represents a hydrogen atom or an alkyl group having 1-3 carbon atoms, R3 and R4 may be the same or different and represent a hydrogen atom or-(CH2) m-COOM2, m and n may be the same or different and represent 0-20, M1 and M2 may be the same or different, and m and n may be the same or different and represent 0-20. And each represents a hydrogen atom, an alkali metal, an alkaline earth metal, an alkanolamine, ammonium or a basic amino acid. > # imgabs0 #

Description

Technical Field

[0001] The present invention relates to hair cleansing compositions. Background Art

[0002] In recent years, there has been a demand for a hair cleansing composition which has good foaming performance (foaming and foam density, etc.) and can suppress discoloration over time and maintain the appearance.

[0003] For example, in order to provide a shampoo composition with good foaming and stability (appearance evaluation over time), a shampoo composition containing N-acylamino acid salt, water-soluble inorganic salt, coconut fatty acid N-methylethanolamide, higher fatty acid and anionic polymer has been proposed (see Patent Document 1). In addition, in order to provide a cleaning agent composition with fast foaming and good foam sustainability, a cleaning agent composition containing a divalent alcohol, silicone oil and anionic surfactant or amphoteric surfactant has been proposed (see Patent Document 2).

[0004] However, the existing compositions including Patent Documents 1 and 2 have concerns that the appearance may be impaired (yellowing) due to the change of trace components contained in the surfactant in the composition over time. In addition, the foam density of the composition is insufficient, and there is room for improvement in terms of the good feeling during washing.

[0005] Therefore, it is desired to provide a hair cleansing composition which is excellent in foaming and foam density and can suppress yellowing over time.

[0006] Prior art literature

[0007] Patent Literature

[0008] Patent Document 1: Japanese Patent Application Publication No. 2016-030722

[0009] Patent Document 2: Japanese Patent Application Publication No. 2001-081017 Summary of the invention

[0010] Problem that the invention aims to solve

[0011] The present invention aims to solve the above-mentioned problems and achieve the following objects: Specifically, the present invention aims to provide a hair cleansing composition which has excellent foaming and foam density and can suppress yellowing over time.

[0012] Solutions for solving problems

[0013] The present invention contains (A) an amino acid surfactant represented by the following general formula (1), (B) an amphoteric surfactant, (C) an anionic polysaccharide and (D) isoprene glycol, wherein the mass ratio [{(A)+(B)} / (D)] of the total content of the above-mentioned component (A) and the above-mentioned component (B) to the content of the above-mentioned component (D) is greater than 2 and less than 8.

[0014]

[0015] (In the above general formula (1), R 1 represents a linear or branched alkyl or alkenyl group having 5 to 23 carbon atoms, or a phenyl group substituted with a linear or branched alkyl or alkenyl group having 5 to 23 carbon atoms, R 2 represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R 3 and R 4 are optionally the same or different, representing a hydrogen atom or -(CH 2 ) m -COOM 2 , m and n are optionally the same or different, representing 0 to 20, M 1 and M 2 are optionally the same or different and represent a hydrogen atom, an alkali metal, an alkaline earth metal, an alkanolamine, ammonium or a basic amino acid.

[0016] The present invention is based on the findings of the present inventors, and as a means for solving the above-mentioned problems, it is as follows.

[0017] <1> A hair cleansing composition comprising (A) an amino acid surfactant represented by the following general formula (1), (B) an amphoteric surfactant, (C) an anionic polysaccharide and (D) isoprene glycol, wherein the mass ratio of the total content of the components (A) and (B) to the content of the component (D) [{(A)+(B)} / (D)] is 2 to 8.

[0018]

[0019] (In the above general formula (1), R 1 represents a linear or branched alkyl or alkenyl group having 5 to 23 carbon atoms, or a phenyl group substituted with a linear or branched alkyl or alkenyl group having 5 to 23 carbon atoms, R 2 represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R 3 and R 4 are optionally the same or different, representing a hydrogen atom or -(CH 2 ) m -COOM 2 , m and n are optionally the same or different, representing 0 to 20, M 1 and M 2are optionally the same or different and represent a hydrogen atom, an alkali metal, an alkaline earth metal, an alkanolamine, ammonium or a basic amino acid.

[0020] <2> The hair cleansing composition according to <1> above, wherein

[0021] The content of the component (A) is 5% by mass or more and 8% by mass or less based on the total amount of the hair cleansing composition.

[0022] The content of the component (B) is 5% by mass or more and 8% by mass or less based on the total amount of the hair cleansing composition.

[0023] The content of the component (C) is 0.2% by mass or more and 0.6% by mass or less based on the total amount of the hair cleansing composition.

[0024] The content of the component (D) is 4% by mass or more and 6% by mass or less based on the total amount of the hair cleansing composition.

[0025] <3> The hair cleansing composition according to <1> or <2>, wherein the mass ratio of the total content of the components (A) and (B) to the content of the component (C) [{(A)+(B)} / (C)] is 30 to 70.

[0026] Effects of the Invention

[0027] According to the present invention, there can be provided a hair cleansing composition which is excellent in foaming and foam density and can suppress yellowing over time. DETAILED DESCRIPTION

[0028] (Hair cleansing composition)

[0029] The hair cleansing composition of the present invention comprises (A) an amino acid surfactant represented by the general formula (1), (B) an amphoteric surfactant, (C) an anionic polysaccharide and (D) isoprene glycol, and may contain other components as necessary.

[0030] In the present specification, "(A) amino acid type surfactant represented by general formula (1)" is sometimes referred to as "(A)" or "(A) component", "(B) amphoteric surfactant" is sometimes referred to as "(B)" or "(B) component", "(C) anionic polysaccharide" is sometimes referred to as "(C)" or "(C) component", and "(D) isoprene glycol" is sometimes referred to as "(D)" or "(D) component".

[0031] <(A) Amino acid surfactant represented by general formula (1)>

[0032] The component (A) imparts good foaming to the hair cleansing composition.

[0033] The amino acid type surfactant is a compound represented by the following general formula (1).

[0034]

[0035] (In the above general formula (1), R 1 represents a linear or branched alkyl or alkenyl group having 5 to 23 carbon atoms, or a phenyl group substituted with a linear or branched alkyl or alkenyl group having 5 to 23 carbon atoms, R 2 represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R 3 and R 4 are optionally the same or different, representing a hydrogen atom or -(CH 2 ) m -COOM 2 , m and n are optionally the same or different, representing 0 to 20, M 1 and M 2 are optionally the same or different and represent a hydrogen atom, an alkali metal, an alkaline earth metal, an alkanolamine, ammonium or a basic amino acid.

[0036] Specific examples of the component (A) include sodium lauroyl methyl-β-alanine, sodium coconut fatty acid methyl alanine, N-lauroyl-N-methyl-β-alanine triethanolamine, sodium lauroyl sarcosinate, sodium N-lauroyl-L-glutamate, etc. Among these, sodium lauroyl methyl-β-alanine and sodium coconut fatty acid methyl alanine are preferred from the viewpoint of good foaming.

[0037] These may be used alone or in combination of two or more.

[0038] As the amino acid type surfactant, a synthetic product may be used as appropriate, or a commercial product may be used.

[0039] Examples of commercially available products of the amino acid-based surfactants include NIKKOLAlaninate LN-30 (sodium lauroyl methyl-β-alanine), NIKKOL Sarcosinate LN (sodium lauroyl sarcosinate) (both manufactured by Nikko Chemical Co., Ltd.), ALANON ACE (sodium coconut fatty acid methyl alanine), ALANON ALE (sodium lauroyl methyl-β-alanine), Soypon (registered trademark) SLP (sodium lauroyl sarcosinate) (both manufactured by Kawaken Fine Chemicals Co., Ltd.), ENAGICOL L-30AN (sodium lauroyl methyl-β-alanine, manufactured by Lion Specialty Chemicals Co., Ltd.), SOFTILT AT-L (N-lauroyl-N-methyl-β-alanine triethanolamine, manufactured by NOF Corporation), AMISOFT (registered trademark) LS-11 (sodium N-lauroyl-L-glutamate, manufactured by Ajinomoto Co., Ltd.), and the like.

[0040] The content of the component (A) is not particularly limited and may be appropriately selected depending on the intended purpose, but is preferably 3% by mass to 10% by mass, more preferably 5% by mass to 8% by mass, based on the total amount of the hair cleansing composition, from the viewpoint of improving the foaming and yellowing suppressing effects.

[0041] When the content of the component (A) is 3% by mass or more based on the total amount of the hair cleansing composition, foaming becomes good.

[0042] When the content of the component (A) is 10% by mass or less based on the total amount of the hair cleansing composition, the yellowing-inhibiting effect becomes good.

[0043] <(B) Amphoteric surfactant>

[0044] The component (B) imparts good foaming to the hair cleansing composition.

[0045] The amphoteric surfactant is not particularly limited and may be appropriately selected depending on the intended purpose. Examples thereof include amide betaine type amphoteric surfactants, imidazoline type amphoteric surfactants, alkyl betaine type amphoteric surfactants, and sulfobetaine type amphoteric surfactants.

[0046] These may be used alone or in combination of two or more.

[0047] The amide betaine type amphoteric surfactant is not particularly limited and may be appropriately selected depending on the intended purpose. Examples thereof include coconut fatty acid amide propyl betaine and lauric acid amide propyl betaine.

[0048] These may be used alone or in combination of two or more.

[0049] The imidazoline type amphoteric surfactant is not particularly limited and can be appropriately selected according to the purpose. Examples thereof include sodium N-lauroyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine, sodium N-coconut oil fatty acyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine, and 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine.

[0050] These may be used alone or in combination of two or more.

[0051] The alkyl betaine type amphoteric surfactant is not particularly limited and may be appropriately selected depending on the intended purpose. Examples thereof include lauryl dimethylaminoacetic acid betaine, coconut oil alkyl betaine, and stearyl dimethylaminoacetic acid betaine.

[0052] These may be used alone or in combination of two or more.

[0053] The sulfobetaine-type amphoteric surfactant is not particularly limited and may be appropriately selected depending on the intended purpose. Examples thereof include lauryl hydroxysulfobetaine, lauryl hydroxysulfobetaine, coconut fatty acid dimethylaminohydroxysulfobetaine, and lauryl dimethylaminohydroxysulfobetaine.

[0054] These may be used alone or in combination of two or more.

[0055] Among these, coconut oil fatty acid amidopropyl betaine and lauric acid amidopropyl betaine are preferred from the viewpoint of improving foaming.

[0056] As the above-mentioned amphoteric surfactant, a synthetic product may be used as appropriate, or a commercial product may be used.

[0057] Examples of commercially available products of the amphoteric surfactant include alkyl betaine-type amphoteric surfactants such as AMPHITOL 24B (lauryl dimethylaminoacetic acid betaine, manufactured by Kao Corporation), NISSAN ANON (registered trademark) BL (lauryl dimethylaminoacetic acid betaine, manufactured by NOF Corporation), NIKKOL AM-301 (lauryl dimethylaminoacetic acid betaine, manufactured by Nikko Chemical Co., Ltd.), AMOGEN (registered trademark) S (lauryl dimethylaminoacetic acid betaine, manufactured by Dai-ichi Kogyo Seiyaku Co., Ltd.), and AMOGEN (registered trademark) SH (lauryl dimethylaminoacetic acid betaine, manufactured by Dai-ichi Kogyo Seiyaku Co., Ltd.); ENAGICOL L-30B (lauric acid amidopropyl betaine, manufactured by Lion Specialty Chemicals Co., Ltd.), NISSAN ANON (registered trademark) BL (lauryl dimethylaminoacetic acid betaine, manufactured by NOF Corporation), NIKKOL AM-301 (lauryl dimethylaminoacetic acid betaine, manufactured by Nikko Chemical Co., Ltd.); Amidobetaine type amphoteric surfactants such as ANON (registered trademark) BDF-SF (coconut fatty acid amidopropyl betaine, manufactured by NOF Corporation) and OBAZOLIN CAG-30 (coconut fatty acid amidopropyl betaine, manufactured by Toho Chemical Industry Co., Ltd.); sulfobetaine type amphoteric surfactants such as AMPHITOL 20HD (lauryl hydroxysulfobetaine, manufactured by Kao Corporation) and Softazoline LSB (lauryl hydroxysulfobetaine, manufactured by Kawaken Fine Chemicals Co., Ltd.); imidazoline type amphoteric surfactants such as NIKKOL AM-101 (2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, manufactured by Nikko Chemical Co., Ltd.) and NISSAN ANON (registered trademark) GLM-R-LV (2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, manufactured by NOF Corporation); and the like.

[0058] The content of the component (B) is not particularly limited and may be appropriately selected depending on the intended purpose, but is preferably 3% by mass to 10% by mass, more preferably 5% by mass to 8% by mass, based on the total amount of the hair cleansing composition, from the viewpoint of improving the foaming and yellowing suppressing effects.

[0059] When the content of the component (B) is 3% by mass or more based on the total amount of the hair cleansing composition, foaming becomes good.

[0060] When the content of the component (B) is 10% by mass or less based on the total amount of the hair cleansing composition, the yellowing-inhibiting effect becomes good.

[0061] <(C) Anionic polysaccharides>

[0062] The component (C) imparts good foam density to the hair cleansing composition.

[0063] The (C) anionic polysaccharide is not particularly limited and can be appropriately selected depending on the purpose, and examples thereof include xanthan gum, gellan gum, carrageenan, etc. Among these, xanthan gum and gellan gum are preferred, and xanthan gum is more preferred, from the viewpoint of improving the foam density.

[0064] As the xanthan gum, a synthetic product may be used as appropriate, or a commercial product may be used.

[0065] Examples of commercially available products of the xanthan gum include KELTROL CG, KELTROL CG-T, KELTROL CG-SFT, KELTROL CG LAX-T (all manufactured by Sanjing Co., Ltd.), ECHO GUM T, KELDENT, KELDENT SFT, and Rhaball Gum (registered trademark) GS-C (all manufactured by MP Gokyo Food & Chemical Co., Ltd.).

[0066] As the gellan gum, a synthetic product may be used as appropriate, or a commercially available product may be used.

[0067] Examples of commercially available products of the gellan gum include KELCOGEL CG-HA and KELCOGEL CG-LA (each manufactured by Sanshin Co., Ltd.) and KELCOGEL (registered trademark) (manufactured by MP Gokyo Food & Chemical Co., Ltd.).

[0068] As the carrageenan, a synthetic product may be used as appropriate, or a commercial product may be used.

[0069] Examples of commercially available products of the carrageenan include GENUGEL (registered trademark) carrageenan type JPE-126 (manufactured by Sankei Co., Ltd.) and the like.

[0070] The content of the component (C) is not particularly limited and may be appropriately selected depending on the intended purpose. From the viewpoint of good foaming and foam density, the content is preferably from 0.1% by mass to 1% by mass, more preferably from 0.2% by mass to 0.6% by mass, based on the total amount of the hair cleansing composition.

[0071] When the content of the component (C) is 0.1% by mass or more based on the total amount of the hair cleansing composition, the foam density becomes good.

[0072] When the content of the component (C) is 1% by mass or less based on the total amount of the hair cleansing composition, foaming becomes good.

[0073] The viscosity (mPa·s) of a 1% aqueous solution of the component (C) is not particularly limited and may be appropriately selected depending on the intended purpose, but is preferably 1500 mPa·s or more and 2200 mPa·s or less from the viewpoint of improving the foam density.

[0074] The viscosity of a 1% aqueous solution of the component (C) can be measured, for example, using a Brookfield SynchroLectric viscometer of LV model at 60 rpm, a No. 3 rotor, 25° C., and with the addition of 1% KCl.

[0075] <(D) Isopentyldiol>

[0076] The above-mentioned (D) isoprene glycol imparts a good yellowing-inhibiting effect to the hair cleansing composition.

[0077] As the component (D), a synthetic product may be used as appropriate, or a commercially available product may be used.

[0078] Examples of commercially available products of the component (D) include isoprene glycol-S (manufactured by Kaneka Corporation) and the like.

[0079] The content of the component (D) is not particularly limited and may be appropriately selected depending on the intended purpose, but is preferably 2% by mass to 8% by mass, more preferably 4% by mass to 6% by mass, based on the total amount of the hair cleansing composition, from the viewpoint of improving the foam density and yellowing inhibition effect.

[0080] When the content of the component (D) is 2% by mass or more based on the total amount of the hair cleansing composition, the yellowing-inhibiting effect becomes good.

[0081] When the content of the component (D) is 8% by mass or less based on the total amount of the hair cleansing composition, the foam density becomes good.

[0082] In the hair cleansing composition of the present invention, the mass ratio [{(A)+(B)} / (D)] of the total content of the components (A) and (B) to the content of the component (D) is 2 or more and 8 or less.

[0083] The mass ratio [{(A)+(B)} / (D)] is preferably 2.5 or more and 4 or less from the viewpoint of improving the foam density and the yellowing suppression effect.

[0084] When the mass ratio [{(A)+(B)} / (D)] is 2.5 or more, the foam density is good.

[0085] When the mass ratio [{(A)+(B)} / (D)] is 4 or less, the yellowing suppression effect is good.

[0086] In the hair cleansing composition of the present invention, the mass ratio [{(A)+(B)} / (C)] of the total content of the component (A) and the component (B) to the content of the component (C) is not particularly limited and may be appropriately selected depending on the intended purpose. From the viewpoint of improving the density of foam and the finger-feeling property of the hair during rinsing, it is preferably 20 to 100, more preferably 30 to 70.

[0087] When the mass ratio [{(A)+(B)} / (C)] is 20 or more, the finger-feeling property of the hair during rinsing is good.

[0088] When the mass ratio [{(A)+(B)} / (C)] is 100 or less, the foam density is good.

[0089] <Other ingredients>

[0090] The hair cleansing composition may contain other components in addition to the components (A), (B), (C) and (D), as needed, within a range that does not impair the effects of the present invention.

[0091] The other components are not particularly limited and can be appropriately selected depending on the purpose. Examples thereof include anionic surfactants other than the component (A), cationic surfactants, nonionic surfactants, water-soluble polymers other than the component (C), polyols other than the component (D), inorganic salts such as salt and sodium sulfate, organic salts, moisturizers, tonics, solubilizers, antioxidants such as BHT and α-tocopherol, fungicides such as triclosan and triclocarban, viscosity modifiers such as fatty acid diethanolamide, ultraviolet absorbers, protein derivatives, animal and plant extracts, antidandruff agents such as piroctone olamine and zinc pyrithione, anti-inflammatory agents such as dipotassium glycyrrhizinate, benzoic acid or its salts, parabens, preservatives such as Kathon CG, pH adjusters such as citric acid and triethanolamine, opacifiers, hydrotropes, lower alcohols, vitamins, volatile oils, hydrophobic solvents, diluents such as purified water, pigments, and fragrances.

[0092] These may be used alone or in combination of two or more.

[0093] The above-mentioned fragrance is not particularly limited and can be appropriately selected according to the purpose. For example, the fragrance compositions A to D described in paragraphs

[0065] to

[0071] of JP-A-2002-128658, the fragrance compositions A to E described in paragraphs

[0076] to

[0088] of JP-A-2003-73249, or the fragrances described in the blended fragrance compositions 1 to 4 described in paragraphs

[0016] to

[0023] of JP-A-2020-132680, etc.

[0094] -pH-

[0095] The pH of the hair cleansing composition at 25°C is not particularly limited and may be appropriately selected depending on the intended purpose, but is preferably 5 or more and 8 or less, and more preferably 6 or more and 7 or less.

[0096] The pH can be measured according to the pH measurement method of Japan's Quasi-drug Ingredient Standards General Testing Methods.

[0097] -Viscosity-

[0098] The viscosity of the hair cleansing composition at 25° C. is not particularly limited and may be appropriately selected depending on the intended purpose, but is preferably from 1 Pa·s to 10 Pa·s, and more preferably from 2 Pa·s to 8 Pa·s.

[0099] When the viscosity of the hair cleansing composition is 1 Pa·s or more, the usability is improved, which is favorable.

[0100] When the viscosity of the hair cleansing composition is 10 Pa·s or less, discharge properties from a container described below are improved, which is favorable.

[0101] The viscosity can be measured according to the second method of the viscosity measurement method of the Japanese Gaiyuan Standards General Testing Methods.

[0102] <Container>

[0103] The hair cleansing composition can be used by filling a container.

[0104] The above-mentioned container is not particularly limited and can be appropriately selected according to the purpose. Examples thereof include tube containers such as aluminum laminated tubes, EVAL tubes, aluminum tubes, and glass-deposited plastic tubes, mechanical or pressure-differential pump containers and squeezable containers, laminated film containers, dropper containers, and bottle containers.

[0105] As the material of the aluminum laminate tube, for example, laminated film can be cited. As the laminated film, from the viewpoints of strength, flexibility, weather resistance, etc., it is generally preferred to have a plurality of layers of two or more, and more preferably 2 to 5 layers. As the material of the laminated film, for example, synthetic resins such as polyethylene, polyethylene terephthalate, polyester, biaxially stretched polypropylene, non-stretched polypropylene, polyacrylonitrile, and ethylene-vinyl acetate copolymer, paper, and aluminum-deposited plastics can be cited.

[0106] Examples of the material of the bottle container include polyethylene, polypropylene, polyethylene terephthalate, polystyrene, polyvinyl chloride, ethylene-vinyl alcohol resin, acrylonitrile-styrene resin, ABS resin, polyamide, and glass. It is preferably used in a single layer or in combination of two or more layers.

[0107] -Manufacturing method-

[0108] The method for producing the hair cleansing composition is not particularly limited and can be appropriately selected depending on the intended purpose. For example, the hair cleansing composition can be obtained by mixing the above-mentioned component (A), the above-mentioned component (B), the above-mentioned component (C) and the above-mentioned component (D), and further the above-mentioned other components as required, and purified water (mixed so that the residual amount of the whole hair cleansing composition becomes 100% by mass).

[0109] Specifically, purified water is heated to 60°C to 70°C, and the components (A) and (B) are mixed uniformly. Then, a small amount of the component (C) uniformly dispersed in the component (D) is added, mixed uniformly, and expanded. Then, the mixture is cooled to 40°C or less, and the other components are mixed and kneaded uniformly, thereby obtaining a hair cleansing composition.

[0110] The hair cleansing composition can be prepared using an apparatus. The apparatus is not particularly limited and can be appropriately selected according to the purpose, and examples thereof include a stirring apparatus equipped with a stirring blade having a shearing force and capable of mixing the entire composition.

[0111] The stirring blade is not particularly limited and may be appropriately selected depending on the intended purpose. Examples thereof include a propeller, a turbine, and a disperser.

[0112] -use-

[0113] The hair cleansing composition can be widely used as a bath hair conditioner such as shampoo (using conditioning and care as a post-process), wash and conditioner shampoo, conditioning shampoo, and care shampoo (no post-process such as conditioning and care. In the present invention, these are collectively referred to as wash and conditioner shampoo). These can be used in the usual amount of products and according to the usual method.

[0114] Example

[0115] The present invention is specifically described below with reference to Examples and Comparative Examples, but the present invention is not limited to these Examples. The content of each component described in the Examples and Comparative Examples is expressed in "mass %", the total amount is 100 mass %, and all are values ​​converted to pure components.

[0116] (Examples 1 to 33 and Comparative Examples 1 to 10)

[0117] Hair cleansing compositions having the compositions and contents shown in Examples 1 to 33 and Comparative Examples 1 to 10 were prepared by the following method. Specifically, purified water was heated to 60°C to 70°C, and the above-mentioned component (A) and the above-mentioned component (B) were mixed uniformly. Then, a small amount of a substance obtained by uniformly dispersing the above-mentioned component (C) and the above-mentioned comparative component (C) in the above-mentioned component (D) or the above-mentioned comparative component (D) was added, mixed uniformly, and expanded. Then, the mixture was cooled to 40°C or less, and other components (phenoxyethanol, citric acid, fragrance, etc.) were added and mixed uniformly to obtain each hair cleansing composition.

[0118] The mixing of the components was performed by stirring using a stirring blade and a three-in-one motor (HEIDON BL1200, manufactured by Shinto Chemical Co., Ltd.).

[0119] The hair cleansing compositions of Examples 1 to 33 and Comparative Examples 1 to 10 were evaluated and judged for "foaming", "foam density", "good finger-feeling during rinsing", and "yellowing inhibition effect" as described below. The results are shown in Tables 1 to 5 below.

[0120] <Evaluation of foaming and foam density>

[0121] Five professional panelists were asked to use 6 g or 3 g of each hair cleansing composition according to the length of hair for 2 days (once a day). When washing on the second day, "foaming", "foam density" and "good finger-feeling during rinsing" were evaluated based on the following evaluation criteria. The total score of the five professional panelists was calculated and judged based on the following judgment criteria.

[0122] -Evaluation criteria for foaming-

[0123] 5 points: The foam comes out quickly and a sufficient amount of foam is obtained

[0124] 4 points: Bubbles quickly and produces sufficient bubbles

[0125] 3 points: The foaming is a little slow, and sufficient foam is obtained

[0126] 2 points: Slow foaming, insufficient foaming

[0127] 1 point: No bubbles at all

[0128] -Evaluation criteria for foam density-

[0129] 5 points: Very dense foam

[0130] 4 points: Dense foam

[0131] 3 points: slightly dense foam

[0132] 2 points: The foam is not very dense

[0133] 1 point: The foam is not dense

[0134] -Evaluation criteria for good finger-feeling of hair during rinsing-

[0135] 5 points: Finger penetration is quite good

[0136] 4 points: Good finger penetration

[0137] 3 points: Slightly better finger penetration

[0138] 2 points: Resistance is felt and fingers cannot pass through easily

[0139] 1 point: Considerable resistance is felt and the finger cannot pass through

[0140] - Criteria for judging whether foaming, foam density, and finger-feeling during rinsing are good -

[0141] ◎◎: 22 points or more and 25 points or less

[0142] ◎: 18 points or more and 21 points or less

[0143] ○: 15 points or more and 17 points or less

[0144] △: 12 points or more and 14 points or less

[0145] ×: Less than 11 points

[0146] <Evaluation of yellowing inhibition effect>

[0147] Each hair cleansing composition was filled in a 50 mL glass bottle and stored for 1 month in a thermostatic chamber controlled at 50° C. The appearances before and after storage were visually compared and evaluated according to the following evaluation criteria.

[0148] -Evaluation criteria for yellowing inhibition effect-

[0149] ◎◎: Yellowing is greatly suppressed

[0150] ◎: Yellowing is suppressed

[0151] ○: Yellowing is slightly suppressed

[0152] △: Yellowing is accelerated

[0153] ×: Yellowing is greatly promoted

[0154]

Table 1

[0155]

[0156]

Table 2

[0157]

[0158]

Table 3

[0159]

[0160]

Table 4

[0161]

[0162]

Table 5

[0163]

[0164] The details of the components used in Examples 1 to 33 and Comparative Examples 1 to 10 are shown in Table 6 below.

[0165]

Table 6

[0166]

[0167] Industrial Applicability

[0168] The hair cleansing composition of the present invention has excellent foaming and foam density and can suppress yellowing over time, and therefore can be widely used as a bath hair care agent such as shampoo, shampoo-in-one shampoo, conditioning shampoo, and treatment shampoo.

Claims

1. A hair cleansing composition, characterized in that Containing (A) an amino acid surfactant represented by the following general formula (1), (B) an amphoteric surfactant, (C) an anionic polysaccharide and (D) isoprene glycol, The mass ratio of the total content of the component (A) and the component (B) to the content of the component (D) [{(A)+(B)} / (D)] is 2 or more and 8 or less, In the general formula (1), R 1 represents a linear or branched alkyl or alkenyl group having 5 to 23 carbon atoms, or a phenyl group substituted with a linear or branched alkyl or alkenyl group having 5 to 23 carbon atoms, R 2 represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R 3 and R 4 Optionally the same or different, represents a hydrogen atom or -(CH2) m -COOM 2 , m and n are optionally the same or different, representing 0 to 20, M 1 and M 2 are optionally the same or different, and represent a hydrogen atom, an alkali metal, an alkaline earth metal, an alkanolamine, ammonium or a basic amino acid.

2. The hair cleansing composition according to claim 1, wherein The content of the component (A) is 5% by mass or more and 8% by mass or less based on the total amount of the hair cleansing composition. The content of the component (B) is 5% by mass or more and 8% by mass or less based on the total amount of the hair cleansing composition. The content of the component (C) is 0.2% by mass or more and 0.6% by mass or less based on the total amount of the hair cleansing composition. The content of the component (D) is 4% by mass or more and 6% by mass or less based on the total amount of the hair cleansing composition.

3. The hair cleansing composition according to claim 1 or 2, wherein The mass ratio of the total content of the component (A) and the component (B) to the content of the component (C) [{(A)+(B)} / (C)] is 30 or more and 70 or less.

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