Hair cosmetic composition

Abstract

To provide a hair cosmetic composition that has foamability and offers low viscosity and stability.SOLUTION: A hair cosmetic composition comprises: a polyhydric alcohol; a fatty acid; an amphoteric surfactant; and an alkali agent. In a preferred embodiment of the inventive hair cosmetic composition, the polyhydric alcohol is at least one selected from propylene glycol, dipropylene glycol, and tripropylene glycol.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to a hair cosmetic composition, and particularly to a hair cosmetic composition having excellent foaming properties.

Background Art

[0002] Conventionally, as shaving agents used when shaving body hair such as beards and stray hairs with a razor or the like, there are solid or powdered shaving soaps using fatty acids such as soap, shaving creams, shaving gels, aerosol-type shaving foams, post-foaming shaving gel foams, and the like. When shaving a beard at a barbershop or the like, shaving soap is used by foaming it using a lather mixer or a shaving cup.

[0003] For example, as a composition having foaming properties that gradually foams to form a foam, it consists of an aqueous stock solution having a viscosity of 500 to 8,000 cps at 20°C and a compressed gas, and in a state of being filled in a shrinkable container having a discharge port, the compressed gas is dissolved in the stock solution and its concentration is 200 to 5,000 ppm. A slow-foaming type post-foaming composition is known (Patent Document 1).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Disclosure of the Invention

Problems to be Solved by the Invention

[0005] However, including the above Patent Document 1, in the prior art, although it has excellent foaming properties, when using a liquid that is likely to solidify depending on the soap component, it may solidify at the mesh part, and there is a problem that it becomes difficult to discharge. Therefore, a composition having low viscosity and stability is desired.

[0006] Therefore, an object of the present invention is to provide a hair cosmetic composition having foamability, low viscosity, and stability.

Means for Solving the Problems

[0007] In order to achieve the above object, the present inventors have intensively studied a foaming composition and as a result, have found the present invention.

[0008] That is, the hair cosmetic composition of the present invention is characterized by having a polyhydric alcohol, a fatty acid, an amphoteric surfactant, and an alkaline agent.

[0009] Further, in a preferred embodiment of the hair cosmetic composition of the present invention, the polyhydric alcohol is at least one selected from propylene glycol, dipropylene glycol, or tripropylene glycol.

[0010] Further, in a preferred embodiment of the hair cosmetic composition of the present invention, the amphoteric surfactant is at least one selected from Na cocoamphoacetate, Na lauraminopropionate, cocoamidopropyl betaine, lauramidopropyl betaine, lauryl hydroxysultaine, Na lauriminodipropionate, hydroxyalkyl (C12-14) hydroxyethyl sarcosine, or lauramidopropyl hydroxysultaine.

[0011] Further, in a preferred embodiment of the hair cosmetic composition of the present invention, the alkaline agent is at least one selected from tetrahydroxypropyl ethylenediamine, triethanolamine, sodium hydroxide, potassium hydroxide, or aqueous ammonia.

[0012] Further, in a preferred embodiment of the hair cosmetic composition of the present invention, it further contains a preservative.

[0013] In a preferred embodiment of the hair cosmetic composition of the present invention, the preservative is characterized in that it is at least one selected from methylparaben, phenoxyethanol, or sodium benzoate.

[0014] In a preferred embodiment of the hair cosmetic composition of the present invention, further, it is characterized in that it contains a modifier.

[0015] In a preferred embodiment of the hair cosmetic composition of the present invention, further, it is characterized in that it contains an amino acid.

[0016] In a preferred embodiment of the hair cosmetic composition of the present invention, the modifier is characterized in that it is at least one selected from PEG-2 caprylylamine, tetrasodium edetate, or trisodium edetate.

Advantages of the Invention

[0017] According to the hair cosmetic composition of the present invention, it has an advantageous effect of being excellent in viscosity stability and being able to suppress clogging such as mesh. In another aspect, according to the hair cosmetic composition of the present invention, it has an advantageous effect of being excellent in stability even at low temperatures.

Modes for Carrying Out the Invention

[0018] The hair cosmetic composition of the present invention is characterized by having a polyhydric alcohol, a fatty acid, an amphoteric surfactant, and an alkaline agent. In the present invention, by using a polyhydric alcohol and an amphoteric surfactant in combination, it is possible to have foaming properties and excellent viscosity stability. For example, a composition using a pump foamer is foaming, and a low-viscosity liquid and air are mixed in a mixing chamber and passed through a mesh, so that a certain amount of foam can be taken by hand with one push. However, the present invention is applicable even when such a pump foamer is used. This is because, as shown in the examples described later, it is excellent in viscosity stability and can suppress clogging of the mesh as much as possible.

[0019] Further, in a preferred embodiment of the hair cosmetic composition of the present invention, from the viewpoint that the polyhydric alcohol can more stably discharge foam, it is characterized in that it is at least one selected from propylene glycol, dipropylene glycol, or tripropylene glycol. Also, the amount of the polyhydric alcohol is not particularly limited, but from the viewpoint of viscosity stability, it can be preferably 1 to 30% by mass, more preferably 5 to 20% by mass, based on the total amount of the composition. Since polyhydric alcohols have very high hygroscopicity and water retention, they can be used as moisturizing components. Although the hygroscopicity and water retention of polyhydric alcohols are said to be high in the order of glycerin, dipropylene glycol, and 1,3-butylene glycol, as is clear from the examples described later, from the viewpoint of viscosity stability, the propylene glycol-based has a lower viscosity than the glycerin-based at each temperature, and in the present invention, the propylene glycol-based can be preferably used.

[0020] Further, in a preferred embodiment of the hair cosmetic composition of the present invention, the fatty acid is not particularly limited, and examples thereof include saturated fatty acids and unsaturated fatty acids. From the viewpoint of the soap base, examples of the saturated fatty acid include lauric acid, myristic acid, palmitic acid, stearic acid, and the like. From the viewpoint of a soap with good water affinity, examples of the unsaturated fatty acid include oleic acid and linoleic acid. Also, the amount of the fatty acid is not particularly limited, but from the viewpoint of foaming power and detergency, it can be preferably 1 to 30% by mass, more preferably 2 to 25% by mass, based on the total amount of the composition.

[0021] In a preferred embodiment of the hair cosmetic composition of the present invention, the amphoteric surfactant is not particularly limited, but from the viewpoints of foaming and detergency, it is at least one selected from Na cocoamphoacetate, Na lauraminopropionate, cocoamidopropyl betaine, lauramidopropyl betaine, lauryl hydroxysultaine, Na lauriminodipropionate, hydroxyalkyl (C12-14) hydroxyethyl sarcosine, or lauramidopropyl hydroxysultaine. Further, the amount of the amphoteric surfactant is not particularly limited, but from the viewpoints of foam boosting property and foam stability, it is preferably 0.1 to 15% by mass, more preferably 0.5 to 10% by mass, based on the total amount of the composition.

[0022] In the present invention, for example, a premix obtained by saponifying fatty acids such as lauric acid, myristic acid, and palmitic acid with an alkaline agent of potassium hydroxide and adding glycerin as a moisturizing component can be used as a foaming and cleaning base. In order to supplement the cleaning base, an amphoteric surfactant such as lauryl hydroxysultaine can be blended for the purpose of improving foam quality, boosting foam, and enhancing isothermal stability.

[0023] In a preferred embodiment of the hair cosmetic composition of the present invention, the alkaline agent is at least one selected from tetrahydroxypropyl ethylenediamine, triethanolamine, sodium hydroxide, potassium hydroxide, or aqueous ammonia, from the viewpoint of the properties of the soap (characteristics of foam, hardness). The amount of the alkaline agent is not particularly limited, but from the viewpoint of saponification value, it is preferably 0.2 to 7.0% by mass, more preferably 0.5 to 5.5% by mass, based on the total amount of the composition.

[0024] In a preferred embodiment of the hair cosmetic composition of the present invention, it further comprises a preservative. In a preferred embodiment, the preservative is at least one selected from methylparaben, phenoxyethanol, or sodium benzoate from the viewpoint of minimizing the amount required. The amount of the preservative is not particularly limited, but from the viewpoint of burden on the skin, it can preferably be 0.01 to 1.0% by mass, more preferably 0.05 to 0.9% by mass, based on the total amount of the composition.

[0025] In a preferred embodiment of the hair cosmetic composition of the present invention, it further comprises a modifier. The modifier is not particularly limited, and examples thereof include PEG-2 caprylylamine from the viewpoint of improving quick foaming property and foam increasing property. Also, from the viewpoint of sequestering and removing metal ions so as not to hinder foaming by metal ions contained in tap water during rinsing, examples of the modifier include tetrasodium edetate. Further, from the viewpoint of the purpose of imparting a pleasant fragrance during use, a fragrance can be mentioned. In a preferred embodiment of the hair cosmetic composition of the present invention, the modifier is at least one selected from PEG-2 caprylylamine, tetrasodium edetate, or trisodium edetate.

[0026] In the present invention, as modifiers other than the components other than those described above, plant extracts can be expected to have antioxidant, blood flow promoting, moisturizing effects, etc., coloring components such as tar-based pigments for coloring the foam discharged from a pump foamer, and anti-inflammatory and astringent components such as allantoin, glycyrrhizic acid and its salts, etc. can be mentioned. The amount of the modifier is not particularly limited, but from the viewpoint of not inhibiting the functions of the product, it can preferably be 0.0001 to 2.0% by mass, more preferably 0.001 to 1.0% by mass, based on the total amount of the composition.

[0027] In a preferred embodiment of the hair cosmetic composition of the present invention, from the viewpoint of expecting cosmetic effects such as accelerating metabolism and restoring rough skin, it further contains an amino acid. The amino acid is not particularly limited, but from the viewpoint of not inhibiting the saponification value of fatty acid soap, arginine, lysine, histidine, etc. can be mentioned. The amount of the amino acid is not particularly limited, but from the viewpoint of solubility, it is preferably 0.01 to 2.0% by mass, more preferably 0.05 to 1.0% by mass, based on the total amount of the composition.

Example

[0028] Hereinafter, an example of the present invention will be described, but the present invention is not construed as being limited to the following examples.

[0029] Examples 1 to 6 When shaving the beard at a barbershop or the like, shaving soap is used by foaming it with a lather mixer or a shaving cup. Also, the composition using a pump foamer is foamy, and a low-viscosity liquid and air are mixed in a mixing chamber and passed through a mesh, so that a fixed amount of foam can be taken by hand with one push. And this container can be reused and refilled, different from the aerosol can type using high-pressure gas, and can be an environmentally friendly container. On the other hand, a liquid that is likely to solidify, such as a soap component, may solidify at the mesh part and may become difficult to discharge. Therefore, as a foaming composition, if it is applicable to a pump foamer having various problems, it is also sufficiently applicable to other cosmetic compositions. That is, if it is applicable to a pump foamer that requires a formulation design with extremely low viscosity and less likely to clog the mesh, it is also sufficiently applicable to other hair cosmetic compositions.

[0030] Therefore, in this embodiment, first, a foamable composition that can be discharged from a pump former was examined. Specifically, various polyhydric alcohols were used to examine low temperature and viscosity stability. As the polyhydric alcohols, propylene glycol (ADEKA Corporation), dipropylene glycol (ADEKA Corporation), tripropylene glycol (ADEKA Corporation), glycerin (Sakamoto Pharmaceutical Industries Co., Ltd.), diglycerin (Sakamoto Pharmaceutical Industries Co., Ltd.), and polyglycerin-3 (Sakamoto Pharmaceutical Industries Co., Ltd.) were used. As the fatty acids, lauric acid, myristic acid, and palmitic acid (all from Kao Corporation) were used. As the amphoteric surfactant, lauryl hydroxysultaine (active content 30%) (Kao Corporation) was used. As the alkaline agent, potassium hydroxide (Kao Corporation) was used. Table 1 shows the components of the hair cosmetic composition (foamable composition) used in this embodiment.

[0031] [Table 1]

[0032] In Table 1, *1: Formite 2E8 indicates PEG-2 caprylylamine, *2: Priory B-100 indicates a premix of lauric acid, myristic acid, palmitic acid, glycerin, potassium hydroxide, and water, and *3: Amphitol 20HD indicates lauryl hydroxysultaine (active content 30%).

[0033] Next, for the samples prepared in Examples 1 to 6 and Comparative Example 1, the temperature was controlled using a Yamato Scientific Co., Ltd. programmable low-temperature incubator (product name: IN804), and the viscosity was measured after 1 minute at an RV (#3) spindle rotation speed of 20 rpm using a Brickfield Co., Ltd. viscometer (product name: RV DV-IPrime). The measurement results are shown in Table 2.

[0034] [Table 2]

[0035] In Table 2, the unit of viscosity measurement is mPa·s.

[0036] As a result of the above, when comparing the glycerin-based and propylene glycol-based polyhydric alcohols of dipropylene glycol with high moisture retention, the viscosity of the propylene glycol-based is lower than that of the glycerin-based at each temperature, and it was found that the viscosity of both the glycerin-based and the propylene glycol-based decreases as the amount of the dimer increases compared to the monomer.

[0037] From this result, it was found that tripropylene glycol, which is a trimer of propylene glycol, is the most excellent, and it was found that by blending polyhydric alcohol, an increase in viscosity can be suppressed and foam can be stably discharged.

[0038] Also, although not described in the table, the viscosity at -10°C was also measured. As a result, propylene glycol 10% blend: 2,405, dipropylene glycol 10% blend: frozen, tripropylene glycol 10% blend: 90, glycerin 10% blend: 3,295, diglycerin·polyglycerin-3 10% blend: co-frozen. At -10°C, the 10% blend of tripropylene glycol was the most stable.

[0039] On the other hand, in Comparative Example 1 that does not separately contain polyhydric alcohol, after storing the prototype at the specified temperature for one day and night, the viscosity was measured. That is, the polyhydric alcohol was replaced with water for prototyping and the viscosity was measured. Although it does not freeze even at -5°C, it was found that the viscosity that can be discharged from the pump former cannot be achieved from the viewpoint of viscosity.

[0040] As a result of the above, the hygroscopicity and water retention of polyhydric alcohols are high in the order of glycerin, dipropylene glycol, and 1,3-butylene glycol, and they are effective as moisturizing components. However, it was found that they are also excellent in terms of low temperature and viscosity stability this time.

Industrial Applicability

[0041] According to the present invention, it has viscosity stability, and as a hair cosmetic composition, it can be applied in a wide range and has high industrial utility value.

Claims

1. A hair cosmetic composition comprising a polyhydric alcohol, a fatty acid, an amphoteric surfactant, and an alkali agent.

2. The hair cosmetic composition according to Claim 1, wherein the polyhydric alcohol is at least one selected from propylene glycol, dipropylene glycol, or tripropylene glycol.

3. The hair cosmetic composition according to Claim 1 or 2, wherein the amphoteric surfactant is at least one selected from Na cocoamphoacetate, Na lauraminopropionate, cocoamidopropyl betaine, lauramidopropyl betaine, lauryl hydroxysultaine, Na lauriminodipropionate, hydroxyalkyl (C12-14) hydroxyethyl sarcosine, or lauramidopropyl hydroxysultaine.

4. The hair cosmetic composition according to any one of Claims 1 to 3, wherein the alkali agent is at least one selected from tetrahydroxypropyl ethylenediamine, triethanolamine, sodium hydroxide, potassium hydroxide, or aqueous ammonia.

5. The hair cosmetic composition according to any one of Claims 1 to 4, further comprising a preservative.

6. The hair cosmetic composition according to Claim 5, wherein the preservative is at least one selected from methyl paraben, phenoxyethanol, or sodium benzoate.

7. The hair cosmetic composition according to any one of Claims 1 to 6, further comprising a modifier.

8. The hair cosmetic composition according to any one of Claims 1 to 7, further comprising an amino acid.

9. The hair cosmetic composition according to Claim 7, wherein the modifier is at least one selected from PEG-2 caprylylamine, tetrasodium edetate, or trisodium edetate.

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