JP7582643B2 - Hair cleansing composition - Google Patents

Description

The present invention relates to a hair cleansing composition.

Conventionally, examples of anionic surfactants with excellent foaming and cleaning power in hair cleansers include alkyl sulfates and polyoxyethylene alkyl ether sulfates. However, these ingredients remove too much of the oily components from the hair, which can impair the feel of the hair when rinsed and the texture when dried. They also lack the creamy feel of the foam and foam retention. For this reason, hair cleansers that are mild and have good foam quality are generally used in combination with amphoteric surfactants or amino acid-based anionic surfactants.

Moreover, in recent years, in order to further improve the texture of the hair when it is dried, hair cosmetics such as those described in Patent Document 1 have been proposed that have excellent foam volume, foam quality, and ease of running fingers through the hair when washing, and also have good finger-running properties when rinsing, and that provide a smooth finish to the hair after washing and drying.

JP 2016-222560 A

However, although the hair cleansing composition disclosed in Patent Document 1 has a good foam volume and quality, there is room for improvement in terms of the feel when running the hair through the fingers during rinsing and the texture when drying, and the current situation is that satisfactory foam retention has not been achieved.

As a result of intensive research into solving the above problem, the present inventors have found that a hair cleansing composition containing (A) 0.1-7 mass% polyoxyethylene alkyl ether sulfate, (B1) 1-10 mass% betaine-type amphoteric surfactant, (B2) 0.1-4 mass% amino acid-type amphoteric surfactant, (C) 0.05-2 mass% polyoxyethylene alkyl ether, and (D) 0.01-0.5 mass% of one or more cationic polymers or amphoteric polymers selected from O-[2-hydroxy-3-(trimethylammonio)propyl]guar gum chloride, polydimethyldimethylenepyrrolidinium chloride, and dimethyldiallylammonium chloride-acrylamide copolymer, and in which the mass ratio of component (A) to the total of components (B1) and (B2), [(B1)+(B2)]/(A), is 1-80, can solve the above problem, and have completed the present invention.

The present invention can provide a hair cleansing composition that is excellent in foaming, foam creaminess, foam retention, finger-smoothness when rinsing, and texture when dried.

The present invention will be described in detail below. Note that all units indicating content are mass% unless otherwise specified.

The present invention is a hair cleansing composition that contains 0.1-7% of (A) polyoxyethylene alkyl ether sulfate, 1-10% of (B1) betaine-type amphoteric surfactant, 0.1-4% of (B2) amino acid-type amphoteric surfactant, 0.05-2% of (C) polyoxyethylene alkyl ether, and 0.01-0.5% of one or more cationic polymers or amphoteric polymers selected from O-[2-hydroxy-3-(trimethylammonio)propyl]guar gum chloride, polydimethyldimethylenepyrrolidinium chloride, and dimethyldiallylammonium chloride-acrylamide copolymer, and the content ratio of the mass of component (A) to the total of components (B1) and (B2), [(B1)+(B2)]/(A), is 1-80.

From the viewpoint of foaming, the present invention contains (A) polyoxyethylene (hereinafter, POE) alkyl ether sulfate (hereinafter, component (A)).

The component (A) used in the present invention is not particularly limited, and examples thereof include POE(3) alkyl (12,13) ether sulfate, POE(3) alkyl (11-15) ether sulfate, POE(3) alkyl (12-15) ether sulfate, POE(1) lauryl ether sulfate, POE(2) lauryl ether sulfate, and POE(3) lauryl ether sulfate. The component (A) may contain one or more types. Among them, POE(3) alkyl (12,13) ether sulfate is more preferred from the viewpoint of foaming. In these components, the number in parentheses after POE indicates the average number of moles of oxyethylene groups added.

The salt constituting the component (A) used in the present invention is not particularly limited, but examples include sodium salts, ammonium salts, triethanolammonium salts, etc. Among these, sodium salts are more preferred from the viewpoint of foaming.

The content of the component (A) used in the present invention is preferably 0.1 to 7%, more preferably 1 to 5%. If the component (A) is less than 0.1%, there is a risk of poor foaming. If the component (A) is more than 7%, there is a risk of the product becoming difficult to run your fingers through when rinsing and of the creaminess of the foam being lost.

From the viewpoint of smooth finger movement during rinsing, the present invention contains (B1) a betaine-type amphoteric surfactant (hereinafter referred to as component (B1)).

The component (B1) used in the present invention is not particularly limited, but examples thereof include lauric acid amidopropyl betaine, coconut oil alkyl betaine, lauryl dimethylaminoacetate betaine, myristyl dimethylaminoacetate betaine, stearyl dimethylaminoacetate betaine, sodium stearyl dimethyl betaine, coconut oil fatty acid amidopropyl betaine, palm oil fatty acid amidopropyl betaine, ricinoleic acid amidopropyl betaine, stearyl dihydroxyethyl betaine, lauryl hydroxysulfobetaine, and the like. The component (B1) may contain one or more types. Among them, lauric acid amidopropyl betaine is more preferable from the viewpoint of finger smoothness during rinsing.

The content of the component (B1) used in the present invention is preferably 1 to 10%, more preferably 2 to 8%. If the content of the component (B1) is less than 1%, there is a risk that the foaming and the smoothness of the skin when rinsing off may become poor. If the content of the component (B1) is more than 10%, there is a risk that the creamy feel of the foam may be impaired.

From the viewpoint of providing a creamy feel to the foam, the present invention contains (B2) an amino acid type amphoteric surfactant (hereinafter referred to as component (B2)).

The component (B2) used in the present invention is not particularly limited, but examples thereof include sodium N-lauroyl-N'-carboxymethyl-N'-hydroxyethyl ethylenediamine, 2-alkyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine, sodium undecyl hydroxyethyl imidazolinium betaine, sodium N-coconut oil fatty acid acyl-N'-carboxyethyl-N'-hydroxyethyl ethylenediamine, sodium N-coconut oil fatty acid acyl-N'-carboxyethoxyethyl-N'-carboxyethyl ethylenediamine disodium, disodium N-coconut oil fatty acid acyl-N'-carboxymethoxyethyl-N'-carboxymethyl ethylenediamine, sodium lauryl diaminoethyl glycine, sodium palm oil fatty acid acyl-N-carboxyethyl-N-hydroxyethyl ethylenediamine, sodium lauryl aminopropionate, sodium lauryl aminodipropionate, triethanolamine lauryl aminopropionate, etc. The component (B2) may contain one or more types. Among these, N-lauroyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine sodium is more preferred from the viewpoint of the creamy feel of the foam.

The content of the component (B2) used in the present invention is preferably 0.1 to 4%, more preferably 0.3 to 2%. If the content of the component (B2) is less than 0.1%, the creaminess of the foam may be impaired. If the content of the component (B2) is more than 4%, the foaming may become poor.

The mass ratio of the component (A) to the total of the components (B1) and (B2) used in the present invention, [(B1)+(B2)]/(A), is preferably 1 to 80. If the mass ratio [(B1)+(B2)]/(A) is less than 1.0, the product may not be easy to run your fingers through when rinsing. If the mass ratio [(B1)+(B2)]/(A) is more than 80, the product may not foam well.

The present invention contains (C) polyoxyethylene alkyl ether (hereinafter referred to as component (C)) from the viewpoint of foam retention.

The component (C) used in the present invention is not particularly limited, but may be, for example, POE (2) lauryl ether, POE (4) lauryl ether, POE (9) lauryl ether, POE (15) lauryl ether, POE (20) lauryl ether, POE (21) lauryl ether, POE (23) lauryl ether, POE (24) lauryl ether, POE (25) lauryl ether, POE (30) lauryl ether, POE (38) lauryl ether, POE (40) lauryl ether, POE (50) lauryl ether, POE (2) cetyl ether, POE (6) cetyl ether, POE (10) cetyl ether, POE (15) cetyl ether, POE (20) cetyl ether. ether, POE(25) cetyl ether, POE(30) cetyl ether, POE(40) cetyl ether, POE(2) stearyl ether, POE(4) stearyl ether, POE(20) stearyl ether, POE(25) stearyl ether, POE(30) stearyl ether, POE(5) behenyl ether, POE(10) behenyl ether, POE(20) behenyl ether, POE(25) behenyl ether, POE(30) behenyl ether, POE(2) oleyl ether, POE(10) oleyl ether, POE(15) oleyl ether, POE(20) oleyl ether, POE(25) oleyl ether, POE(30) oleyl ether, etc. Component (C) may contain one or more kinds. Among these, from the viewpoint of the creamy feel of the foam and foam retention, POE(20) lauryl ether, POE(25) lauryl ether, POE(30) lauryl ether, POE(25) cetyl ether, POE(25) stearyl ether, and POE(25) behenyl ether are preferred, and POE(25) lauryl ether is more preferred.

The content of the component (C) used in the present invention is preferably 0.05 to 2%, more preferably 0.1 to 1%. If the component (C) is less than 0.05%, the foam retention may be poor. If the component (C) is more than 2%, the hair may become difficult to run fingers through when rinsing.

From the viewpoint of texture when dried, the present invention contains (D) one or more cationic polymers or amphoteric polymers selected from O-[2-hydroxy-3-(trimethylammonio)propyl]guar gum chloride, polydimethyldimethylenepyrrolidinium chloride, and dimethyldiallylammonium chloride-acrylamide copolymer (hereinafter referred to as component (D)).

From the viewpoint of texture when dried, the cationic polymer of component (D) used in the present invention is preferably a dimethyldiallylammonium chloride-acrylamide copolymer.

The amphoteric polymer of component (D) used in the present invention is not particularly limited, but examples thereof include dimethyldiallylammonium chloride-acrylic acid copolymer, acrylamide-acrylic acid-dimethyldiallylammonium chloride copolymer, acrylic acid-methyl acrylate-methacrylamidopropyltrimethylammonium chloride copolymer, acrylic acid-acrylamide-methacrylamidopropyltrimonium chloride copolymer, etc. Among these, from the viewpoint of texture when dried, dimethyldiallylammonium chloride-acrylic acid copolymer and acrylamide-acrylic acid-dimethyldiallylammonium chloride copolymer are preferred.

The content of the component (D) used in the present invention is preferably 0.01 to 0.5%, more preferably 0.03 to 0.3%. If the component (D) is less than 0.01%, the texture when dried may be deteriorated. If the component (D) is more than 0.5%, the creamy feel of the foam may be impaired.

In addition to the essential components, the hair cleansing composition of the present invention may contain at least one selected from various components used in ordinary cosmetics, quasi-drugs, pharmaceuticals, etc., such as surfactants other than the components (A) to (C), polymers other than the component (D), oily components, moisturizers, thickeners, chelating agents, medicinal ingredients, protein derivatives, hydrolyzed proteins, amino acids, stabilizers, antioxidants, plant extracts, herbal extracts, vitamins, preservatives, dyes, pigments, powders, pH adjusters, UV absorbers, fragrances, etc. However, the components are not limited to these examples.

The pH of the hair cleansing composition of the present invention at 20°C is preferably 4 to 10, more preferably 6 to 8.

The pH at 20°C according to the present invention is obtained by filling a sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.) with 120 g of a hair cleansing composition prepared by a conventional method, leaving it to stand at 20°C for 24 hours, and then measuring the pH of the original solution using a glass electrode type hydrogen ion concentration indicator (F-71, manufactured by Horiba, Ltd.).

The viscosity of the hair cleansing composition according to the present invention is not particularly limited, but from the viewpoint of ease of application to hair, it is preferably 2,000 to 10,000 mPa·s at 20°C, and more preferably 3,000 to 8,000 mPa·s at 20°C.

The viscosity at 20°C according to the present invention was measured by filling a sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.) with 120 g of the hair cleansing composition prepared by a conventional method, leaving it to stand at 20°C for 24 hours, and then rotating it at 30 rpm for 1 minute at 20°C using a helical stand-equipped B-type viscometer (model: digital viscometer TVB-10M, manufactured by Toki Sangyo Co., Ltd.) with an M4 rotor.

The present invention will be described in more detail below with reference to examples, but the present invention is not limited to these examples.

In the evaluation tests shown in this specification, the components contained in the hair cleansing composition and the results of various experiments carried out while changing their contents are shown below. The units showing the contents of each component in the hair cleansing composition are all mass %, and the composition was prepared by a conventional method. POE shown in the components of the hair cleansing composition stands for polyoxyethylene, and the number in parentheses after POE indicates the average number of moles of oxyethylene groups added.

In the evaluation tests shown in this specification, the following were evaluated: "foaming," "creamy foam," "foam retention," "fingers' ability to run through when rinsing," and "texture when dry."

Regarding foaming, ten female panelists used 3 g of the hair wash compositions obtained in the Examples and Comparative Examples to wash hair of a hair test doll ("Cut Mannequin No. 775N" manufactured by Beaulax Co., Ltd.) with hair cut to a length of 25 cm, and evaluated the foaming according to the following criteria.
⊚: 8 to 10 panelists judged the foaming to be good.
Good: 5 to 7 panelists judged the foaming to be good.
Δ: 3 to 4 panelists judged that the foaming was good.
×: 0 to 2 panelists judged the foaming to be good.

The creamy feel of the foam was evaluated by 10 female panelists using 3 g of the hair wash compositions obtained in the Examples and Comparative Examples to wash hair of a hair test doll ("Cut Mannequin No. 775N" manufactured by Bealux Co., Ltd.) with hair cut to a length of 25 cm, and the creamy feel of the foam was evaluated according to the following criteria.
⊚: 8 to 10 panelists judged the foam to have a creamy feel.
○: 5 to 7 panelists judged the foam to have a creamy feel.
Δ: 3 to 4 panelists judged the foam to have a creamy feel.
×: 0 to 2 panelists judged the foam to have a creamy feel.

The lather retention was evaluated by 10 female panelists using 3 g of the hair cleansing compositions obtained in the Examples and Comparative Examples to wash hair using a hair test doll ("Cut Mannequin No. 775N" manufactured by Beaulax Co., Ltd.) with hair cut to a length of 25 cm, and the lather retention was evaluated according to the following criteria.
⊚: 8 to 10 panelists judged the foam retention to be good.
○: 5 to 7 people judged that the foam retention was good.
Δ: 3 to 4 panelists judged the foam retention to be good.
×: 0 to 2 panelists judged the foam retention to be good.

The smoothness of running fingers through the hair when rinsing was evaluated by 10 female panelists using 3 g of the hair wash compositions obtained in the Examples and Comparative Examples, and using a hair test doll ("Cut Mannequin No. 775N" manufactured by Bealux Co., Ltd.) with hair cut to a length of 25 cm, after rinsing with water at 40° C., according to the following criteria:
⊚: 8 to 10 panelists judged that the feel of the hair when rinsed off was smooth.
○: 5 to 7 panelists judged that the feel of the product when rinsed off was good.
Δ: Three to four panelists judged that the hair felt smooth when rinsed off.
×: 0 to 2 panelists judged that the feel of the product when rinsed off was good.

The texture upon drying was evaluated by 10 female panelists using 3 g of the hair cleansing compositions obtained in the Examples and Comparative Examples, using a hair test doll ("Cut Mannequin No. 775N" manufactured by Bealux Co., Ltd.) with hair cut to a length of 25 cm, rinsing the hair with water at 40° C. and drying it with a hair dryer, and then evaluating the texture according to the following criteria.
⊚: 8 to 10 panelists judged that the texture when dry was good.
○: 5 to 7 panelists judged that the texture when dry was good.
Δ: 3 to 4 panelists judged the texture when dry to be good.
×: 0 to 2 panelists judged the texture when dry to be good.

Examples 1 to 38 shown in Tables 1 to 5 gave good results in terms of foaming, creamy foam feel, foam retention, smoothness when rinsed off, and texture when dried.

The hair cleansing composition obtained in Example 39 below gave good results in terms of foaming, creamy foam feel, foam retention, smoothness when rinsed off, and texture when dried.

Example 39 (Shampoo)
Ingredient Content (%)
(A) POE(3) alkyl(12,13) ether sulfate sodium 2.80
(B1) Lauryl amidopropyl betaine 6.00
(B2) N-lauroyl-N'-carboxymethyl-N'-
Sodium hydroxyethylethylenediamine 1.70
(C) POE (25) lauryl ether 0.40
(D) Dimethyldiallylammonium chloride-acrylamide copolymer 0.04
Coconut oil fatty acid diethanolamide 2.00
Fragrance 0.55
O-[2-hydroxy-3-(trimethylammonio)propyl] chloride
Hydroxyethyl cellulose 0.50
Disodium edetate 0.30
Sodium benzoate 0.30
Methyl parahydroxybenzoate 0.30
Sodium monohydrogen phosphate 0.10
l-Menthol 0.05
Peach fruit extract 0.01
Peach kernel oil 0.01
Peach Leaf Extract 0.01
Black tea extract 0.01
Dipotassium glycyrrhizinate 0.01
1,3-butylene glycol 0.01
Sodium dihydrogen phosphate Amount to make pH 7.0 Purified water Remaining amount Total 100.00

The present invention can provide a hair cleansing composition that is excellent in foaming, foam creaminess, foam retention, finger-smoothness when rinsing, and texture when dried.

Claims (1)

(A) 1 to 5 % by mass of sodium POE(3) alkyl(12,13) ether sulfate,
(B1) 2 to 8 % by mass of lauric acid amidopropyl betaine,
(B2) 0.3 to 2 mass% of N-lauroyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine sodium,
(C) POE (25) lauryl ether 0.1 to 1 % by mass
(D) a hair wash composition comprising 0.03 to 0.3 mass % of a dimethyldiallylammonium chloride-acrylamide copolymer, and a content ratio of the mass of said component (A) to the total mass of said components (B1) and (B2), [(B1)+(B2)]/(A), is 1.3 to 8 .