JP5654197B2 - Shampoo composition - Google Patents

Description

The present invention relates to a shampoo composition, and more specifically, a shampoo composition used by diluting 2 to 5 times, and when used for dry hair, has excellent foaming power, detergency, and conditioning properties, The present invention relates to a shampoo composition that is free from dripping and has excellent low-temperature stability and appearance stability after dilution.

A general shampoo process is a process in which hair is wetted with hot water, a shampoo solution is applied to the hair, massaged, and then the shampoo is washed away. However, in hair salons and barber shops, a method called stand shampoo is performed. This is a method in which a shampoo solution is directly applied to dry hair while sitting on a chair, massage is performed, and then the shampoo solution is washed away. In this stand shampoo, since the hair is not wetted before shampooing, it is usually performed by diluting the shampoo solution 2 to 5 times before applying to the hair. Supplying the necessary moisture to the hair. The shampoo liquids used in these stand shampoos are required to have high foaming power, cleaning power, no dripping, easy to dilute, and that the diluted shampoo liquid is stable with no change in appearance for several days. Yes. For example, when a commercially available shampoo is diluted to about 5 times and used as a stand shampoo, the foaming power is very weak, hardly foams, and the stability after dilution is poor, so it cannot be used as a stand shampoo. Met.

Therefore, a shampoo composition in which a surfactant such as an alkyl ether sulfate ester salt in the shampoo composition is increased to a high concentration is generally used. However, by increasing the concentration of the surfactant, the viscosity of the composition is increased. As a result, there was a problem that it took much time for dilution, could not be said to be sufficiently satisfactory as foaming power, and the surfactant was precipitated in a low temperature environment in winter. For these high-concentration type detergents, for example, a liquid detergent (for example, see Patent Document 1) comprising 40% or more of high-concentration anionic surfactant and / or high-concentration nonionic surfactant, alkyl sulfate ester salt or Liquid detergent composition containing 40 to 80% of total alkyl ether sulfate salt, alkanolamide sulfated unsaturated fatty acid salt (see, for example, Patent Document 2), specific polyoxyethylene alkyl ether sulfate ester salt and non-polyoxyethylene alkyl ether sulfate salt A liquid detergent composition containing an ionic surfactant at a specific ratio (for example, see Patent Document 3) and the like are disclosed. However, these liquid detergents and cleaning compositions have been developed mainly for dishwashing detergents and body cleaning agents. When used as a stand shampoo on hair, the foaming ability is weak and dripping occurs. In addition, the hair conditioning property was poor and was not satisfactory.

JP 2002-38200 A Japanese Patent Laid-Open No. 11-116985 JP 2002-332499 A

The present invention is a shampoo composition used by diluting 2 to 5 times, and when used on dry hair, it has excellent foaming power, detergency, and conditioning properties, no dripping, and low temperature stability And it aims at providing the shampoo composition excellent in the external appearance stability after dilution.

The present inventors specify one or more surfactants, polyhydric alcohols and water-soluble polymer compounds selected from fatty acid soaps, amphoteric surfactants and semipolar surfactants having a specific fatty acid blending ratio. When used on dry hair, the shampoo composition contained in this formulation has excellent foaming power, detergency, and conditioning properties, no dripping, excellent low-temperature stability and appearance stability after dilution The present invention has been completed by finding that the above-mentioned problems can be achieved.

That is, the present invention is a shampoo composition containing the following components (A) to (D) and being diluted 2 to 5 times.
(A) The fatty acid composition contains a fatty acid soap selected from lauric acid, myristic acid, palmitic acid, and stearic acid, and contains a total amount of lauric acid and myristic acid and a total amount of palmitic acid and stearic acid in the fatty acid soap. The ratio (mass ratio) is (lauric acid + myristic acid) :( palmitic acid + stearic acid) = 3: 1-10: 1
(B) one or more water selected from amphoteric surfactants and semipolar surfactants one selected from agents or two or more surfactants (C) a polyhydric alcohol (D) hydro carboxymethyl cellulose and hydroxypropyl cellulose Polymer compounds

The shampoo composition of the present invention is a shampoo composition used by diluting 2 to 5 times, and has excellent foaming power, detergency, and conditioning properties when used on dry hair, and has no dripping. It has characteristics excellent in low temperature stability and appearance stability after dilution.

Hereinafter, embodiments of the present invention will be described in detail.

The fatty acids of the component (A) fatty acid soap used in the present invention are lauric acid, myristic acid, palmitic acid and stearic acid, which are saturated fatty acids having 12, 14, 16, and 18 carbon atoms, respectively. These fatty acids are neutralized to obtain a fatty acid soap. Examples of the neutralizing agent include inorganic alkali agents such as potassium hydroxide and sodium hydroxide, and organic bases such as triethanolamine and aminomethylpropanol. A preferred neutralizing agent is potassium hydroxide. Further, when neutralizing higher fatty acids, it is preferable to neutralize at a neutralization rate of 97% or more, and these fatty acids do not need to be blended as fatty acid soaps themselves, and higher fatty acids and neutralization thereof. You may mix | blend and manufacture as an agent.

The blending ratio of these fatty acids in the present invention is such that the blending ratio (weight ratio) of the total amount of lauric acid and myristic acid and the total amount of palmitic acid and stearic acid is (lauric acid + myristic acid) :( palmitic acid + stearic acid). Acid) = 3: 1 to 10: 1. Exceeding this range is not preferable because it causes problems in basic performance such as foaming and foam retention and a feeling of use. In addition, in each combination of lauric acid and myristic acid and palmitic acid and stearic acid, both are not essential, and for example, any fatty acid such as not containing stearic acid may be used.

The total amount of fatty acid soap blended in the present invention is 10 to 25%, more preferably 15 to 20%. If it exists in this range, it will work | function well, such as stability at low temperature, foaming, and foam retention, and the target effect can be achieved by the combination with another essential component.

In addition, fatty acid soaps other than lauric soap, myristic acid soap, palmitic acid soap and stearic acid soap can be used in combination with the shampoo composition according to the present invention as long as the effects according to the present invention are not impaired. The addition of a fatty acid having less than 12 carbon atoms is not preferable because it deviates from the intention of the present invention to reduce foaming power, but other fatty acids having 16 or more carbon atoms, ie, palmitooleic acid, oleic acid, isostearic acid, linol. Acid, behenic acid, and the like can be used in combination as long as the effects of the present invention are not impaired.

The component (B) amphoteric surfactant and / or semipolar surfactant used in the present invention can be used alone or in combination of two or more. Examples of amphoteric surfactants include betaine type, imidazoline type, and amino acid type, but betaine type and imidazoline type are preferred. In the betaine type, alkylaminoacetic acid betaine and alkylamidopropylbetaine are preferable. In alkylaminoacetic acid betaine, the alkyl group preferably has 8 to 18 carbon atoms, more preferably 10 to 16 carbon atoms. In particular, palm oil fatty acid aminoacetic acid betaine, palm oil fatty acid aminoacetic acid betaine, and laurylaminoacetic acid betaine are preferable. In the alkylamidopropyl betaine, the alkyl group preferably has 6 to 20 carbon atoms, more preferably 8 to 18 carbon atoms, more preferably coconut oil fatty acid amidopropyl betaine, palm oil fatty acid amidopropyl betaine, lauric acid. Amidopropyl betaine is preferred. In 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, the alkyl group preferably has 8 to 18 carbon atoms, and more preferably has 10 to 16 carbon atoms. In particular, the alkyl group is preferably an alkyl group derived from coconut oil fatty acid, palm oil fatty acid and lauric acid. In the imidazoline type, 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine is preferable.

Examples of the semipolar surfactant include amine oxide types and amidoamine oxide types, but amine oxide types are preferred, and alkylamine oxides such as lauryl dimethylamine oxide and coconut oil dimethylamine oxide are particularly preferred.

The content of the amphoteric surfactant and / or the semipolar surfactant is preferably 0.5 to 10%, more preferably 1 to 5% in the shampoo composition. If this range is exceeded, problems such as basic performance such as foaming and foam retention and generation of crystals at low temperatures are undesirable.

The component (C) polyhydric alcohol used in the present invention has a high moisturizing effect and is widely used in shampoo compositions for the purpose of imparting conditioning effects such as moist feeling and suppleness to the hair. It is blended for the purpose of reducing wrinkles, weight, stickiness, etc. generated when a water-soluble polymer is blended, and is blended for the purpose of preventing the precipitation of a surfactant at a low temperature. The component (C) polyhydric alcohol used in the present invention is a compound having two or more hydroxyl groups in the molecule, and specifically includes ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, diethylene glycol. Propylene glycol, polypropylene glycol, glycerin, diglycerin, polyglycerin, isoprene glycol, 1,3-butylene glycol, saccharides such as sorbitol, mannitol, glucose, sucrose, fructose, xylitol, lactose, maltose, maltitol, trehalose, ethyl glucoside And alkyl glucosides. Among these, glycerin, propylene glycol, and butylene glycol are particularly preferable. These can be used by appropriately selecting one or two or more as necessary.

Although content of the component (C) polyhydric alcohol used for this invention is not specifically limited, 0.5 to 15% is preferable in a shampoo composition, and 1 to 5% is more preferable.

The component (D) water-soluble polymer compound used in the present invention is blended for the purpose of imparting a conditioning effect such as moist feeling and suppleness to the hair, and one or two or more kinds may be appropriately selected and used in combination. Can do. Examples of the water-soluble polymer compound include an anionic polymer compound, a nonionic polymer compound, and an amphoteric or cationic polymer compound having a cationic residue. The molecular weight of the water-soluble polymer compound is 1,000 to 50 million, preferably 10,000 to 10 million, and more preferably 100,000 to 5 million.

Examples of the anionic polymer compound include carrageenan, xanthan gum, sodium alginate, potassium alginate, propylene glycol alginate, hyaluronic acid and the like as natural polymers, carboxyvinyl polymer, polyacrylic acid / maleic acid copolymer as synthetic polymer compounds, and the like. Maleic acid / diisobutylene copolymer, methacrylic acid / acrylic acid ester copolymer, and the like. Examples of the methacrylic acid / acrylic acid ester copolymer include methacrylic acid / methyl acrylate copolymer, methacrylic acid / ethyl acrylate copolymer, methacrylic acid / propyl acrylate copolymer, methacrylic acid / butyl acrylate. Copolymer, methacrylic acid / methyl acrylate / ethyl acrylate copolymer, methacrylic acid / methyl acrylate / propyl acrylate copolymer, methacrylic acid / methyl acrylate / butyl acrylate copolymer, methacrylic acid / acrylic Ethyl acid / propyl acrylate copolymer, methacrylic acid / ethyl acrylate / butyl acrylate copolymer, methacrylic acid / propyl acrylate / butyl acrylate copolymer, methacrylic acid / methyl acrylate / ethyl acrylate / acrylic Acid propyl copolymer, methacrylic acid Methyl crylate / ethyl acrylate / butyl acrylate copolymer, methacrylic acid / methyl acrylate / propyl acrylate / butyl acrylate copolymer, methacrylic acid / methyl acrylate / ethyl acrylate / propyl acrylate copolymer -A butyl acrylate copolymer etc. are mentioned.

Nonionic polymer compounds include, for example, pectin, guar gum, locust bean gum, gelatin, tragarant gum as natural polymer compounds, polyvinyl alcohol, polyvinyl methyl ether, polyvinyl pyrrolidone, methyl cellulose, ethyl cellulose, hydroxy as synthetic polymer compounds. Examples include methylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, polyethylene glycol, polyethylene oxide and the like.

Examples of the amphoteric polymer compound include polymethacryloylethyldimethylbetaine, methacryloylethylbetaine / methacrylic acid ester copolymer (manufactured by Mitsubishi Chemical Corporation, Yucaformer series), and the like.

Cationic polymer compounds include dimethyldiallylammonium chloride homopolymer, dimethyldiallylammonium chloride / acrylamide copolymer, dimethyldiallylammonium chloride / acrylic acid copolymer, dimethyldiallylammonium chloride Examples include acrylamide / acrylic acid terpolymers (Calgon, Marquat series). Furthermore, cationized cellulose, cationized guar gum, cationized dextran, cationized pullulan, quaternized vinylpyrrolidone / aminoethyl methacrylate copolymer, polyethyleneimine, dipropylenetriamine condensate, adipic acid dimethyl-aminohydroxypropyldiethyltriamine Proteins such as polymers, quaternary nitrogen-containing starch, cationized hydrolyzed keratin, cationized hydrolyzed silk, cationized hydrolyzed collagen, cationized hydrolyzed wheat, silicone hydrolyzed collagen, silicone hydrolyzed silk The thing etc. which introduce | transduced the cationic group into hydrolysis are mentioned.

Among these high molecular compounds, preferably non-ionic polymer compound, from the viewpoint of the effect of imparting smooth feel to the hair after use, hydro carboxymethyl cellulose, hydroxypropyl cellulose are preferred.

Hydroxyethyl cellulose is not particularly limited, but preferably has a weight average molecular weight of 100,000 to 3,000,000, more preferably 500,000 to 2,000,000. Examples of commercially available products corresponding to these include HECQM100M (weight average molecular weight 1,500,000) manufactured by Union Carbide, HEC-QP4400 (weight average molecular weight 800,000), and HEC Daicel SE900 (weight) manufactured by Daicel Chemical Industries, Ltd. Average molecular weight of 1.5 million).

Hydroxypropyl methylcellulose is not particularly limited, but the viscosity of a 2% aqueous solution (20 ° C.) is a single cylindrical rotational viscometer (TVB-20L type manufactured by Tokimec Co., Ltd., rotor No. L, M2 or M4, rotation speed When measured at 60 rpm and a measurement time of 4 minutes), those in the range of 2 to 35,000 mPa · s, more preferably 20 to 10,000 mPa · s are preferred. As a commercial item corresponding to these, the Shin-Etsu Chemical Co., Ltd. product Metrozes is mentioned, for example.

The blending amount of the water-soluble polymer compound is preferably 0.01 to 5%, more preferably 0.1 to 2% in the hair cosmetic. If it is this range, if it is this range, sufficient smoothness can be provided to hair, and it can be made to have foam and to make foam quality favorable.

In the shampoo composition of the present invention, in addition to the above essential components, any components that are usually used in cosmetics can be used as long as the effects of the present invention are not impaired. These components include anionic surfactants, cationic surfactants, nonionic surfactants, pearl brighteners, oils, UV absorbers, preservatives, moisturizers, polymers, amino acid derivatives, sugar derivatives, fragrances, water , Alcohol, thickener, colorant, sequestering agent, antioxidant, drug and the like.

The dosage form of the shampoo composition of the present invention is arbitrary, and can be a viscous liquid, cream, gel, solid, or powder. Preferred is a viscosity of 100 to 3,000 centipoise. It is preferably a liquid and transparent in appearance.

EXAMPLES Hereinafter, although an Example demonstrates this invention concretely, the technical scope of this invention is not limited by these Examples. Prior to Examples, test methods and evaluation methods employed in each Example and Comparative Example will be described.

(1) Foaming force test 400 ml of artificial hard water (70 ppm calcium carbonate) at 40 ° C. is put into a cylindrical cylinder with a stirrer in a 2500 ml container, and after adding 40 g of a shampoo composition diluted 5 times, 4,500 rpm The foam volume after stirring for 1 minute was measured.
The evaluation criteria were set as follows.
A: Very good foaming (foam volume of 1,200 ml or more)
○: Good foaming (foam volume 1,000 ml or more, less than 1,200 ml)
Δ: Normal foaming (bubble volume 800 ml or more, less than 1,000 ml)
X: Poor foaming (bubble volume less than 800 ml)

(2) Detergency test 0.4 ml of a 7% lanolin and 0.005% Sudan III chloroform solution was evenly applied to a 5cm x 5cm wool muslin cloth and dried, and this shampoo composition was diluted 5 times with this contaminated cloth. The solution is placed in an approximately 100 ml glass cylinder containing 40 ml of the solution, shaken in a constant temperature bath at 40 ° C. for 15 minutes, the contaminated cloth is thoroughly rinsed in running water, dried, and the reflectance is examined. ) To obtain the washing rate.

The evaluation criteria were set as follows.
◎ ・ ・ ・ Excellent cleaning performance Cleaning rate 85% or more ○ ・ ・ ・ Good cleaning performance Cleaning rate 70% or more and less than 85% △ ・ ・ ・ Cleanability normal cleaning rate 55% or more and less than 70% × ・ ・ ・ Defect cleaning Rate less than 55%

(3) No dripping and conditioning Using 10 male and female subjects, using a shampoo composition prepared by diluting 5 times, applying it to dry hair and applying shampoo, dripping during massage Then, the conditioning effect after rinsing was judged. The scores were classified as follows and the average value was calculated.
(Liquid dripping)
No dripping ・ ・ ・ 4 points Little dripping ・ ・ ・ 3 points Slight dripping ・ ・ ・ 2 points Liquid dripping ・ ・ ・ 1 point (conditioning)
Conditioning is high ... 4 points Conditioning is slightly high ... 3 points Conditioning is slightly low ... 2 points Conditioning is low ... 1 point

The evaluation criteria were set as follows.
◎ ・ ・ ・ Average value is 3.0 points or more ○ ・ ・ ・ Average value is 2.5 points or more and less than 3.0 points △ ・ ・ ・ Average value is 2.0 points or more and less than 2.5 points × ・ ・ ・Average value less than 2.0

(4) The low-temperature stable shampoo composition was left in a thermostatic bath at 0 ° C. for 2 weeks, and the presence or absence of turbidity and precipitation of crystalline substances was visually confirmed.

The evaluation criteria were set as follows.
◎ ・ ・ ・ No turbidity and no crystal precipitation ○ ・ ・ ・ Slight turbidity but no crystallized △ ・ ・ ・ Slight crystal precipitation × ・ ・ ・ Clear crystal precipitation

(5) The diluted stable shampoo composition was diluted 2 to 5 times with tap water and allowed to stand at room temperature for 1 week, and the presence or absence of turbidity and precipitation was confirmed visually.

The evaluation criteria were set as follows.
◎ ・ ・ ・ No turbidity and no precipitate ○ ・ ・ ・ Slightly turbid but no precipitate △ ・ ・ ・ Slightly precipitate × ・ ・ ・ Obvious precipitate

Examples 1-7, Comparative Examples 1-5
A shampoo composition having the formulation shown in Table 1 was prepared according to a conventional method, and the above tests were performed for evaluation. The results are also shown in Table 1.

As is clear from Table 1, the shampoo composition of the present invention has any items of foaming power, detergency, conditioning, no dripping, low temperature stability, and appearance stability after dilution as compared with the comparative example. Also had excellent characteristics.

Hereinafter, other formulation examples of the shampoo composition of the present invention will be given as examples. In addition, for these examples, the foaming power, detergency, conditioning properties, no dripping, low temperature stability, and appearance stability after dilution were examined in the previous period. It had excellent characteristics and was good.

Example 8 Shampoo
Compounding amount (%)
(1) Lauric acid 8.0
(2) Myristic acid 3.0
(3) Palmitic acid 1.5
(4) Potassium hydroxide 3.4
(5) Lauryl betaine 1.0
(6) Sodium cocoamphoacetate 2.0
(7) Glycerin 2.0
(8) Propylene glycol 2.0
(9) Hydroxypropyl methylcellulose 0.5
(10) Palm oil fatty acid N-methylethanolamine 2.0
(11) Cocamide DEA 2.0
(12) Sodium chloride 0.5
(13) Aloe extract 0.5
(14) Hydrolyzed silk 0.5
(15) Southern oil 0.1
(16) Fragrance 0.3
(17) Tar-based pigment, minute amount (18) Purified water balance

<Production method>
(1) to (3) and (18) are uniformly mixed and dissolved at 80 ° C., and (4) is added for neutralization. Next, (5) to (12) were added, and after cooling, (13) to (17) were added to prepare a shampoo.

Example 9 Tonic Shampoo
Compounding amount (%)
(1) Lauric acid 8.0
(2) Myristic acid 2.5
(3) Palmitic acid 1.7
(4) Potassium hydroxide 3.5
(5) Lauryl betaine 0.5
(6) Sodium cocoamphoacetate 1.5
(7) Glycerin 2.0
(8) Hydroxypropyl methylcellulose 0.2
(9) Cocamide DEA 1.0
(10) Sodium chloride 0.8
(11) Edetate disodium 0.2
(12) Aloe extract 0.5
(13) Arginine 0.1
(14) Hydrolyzed collagen 0.5
(15) Seaweed extract 0.5
(16) Menthol 1.5
(17) Camphor 0.5
(18) Fragrance 0.3
(19) Caramel color Amount (20) Purified water balance

<Production method>
(1) to (3) and (20) are uniformly mixed and dissolved at 80 ° C., and (4) is added for neutralization. Next, (5) to (11) were added, and after cooling, (12) to (19) were added to prepare a tonic shampoo.

When used on dry hair, the shampoo composition of the present invention has excellent foaming power, detergency, and conditioning properties, no dripping, low temperature stability, and excellent appearance stability after dilution. It is extremely useful as a shampoo composition.

Claims (1)

A shampoo composition containing the following components (A) to (D) and being diluted 2 to 5 times.
(A) The fatty acid composition contains a fatty acid soap selected from lauric acid, myristic acid, palmitic acid, and stearic acid, and contains a total amount of lauric acid and myristic acid and a total amount of palmitic acid and stearic acid in the fatty acid soap. The ratio (mass ratio) is (lauric acid + myristic acid) :( palmitic acid + stearic acid) = 3: 1-10: 1
(B) one or more water selected from amphoteric surfactants and semipolar surfactants one selected from agents or two or more surfactants (C) a polyhydric alcohol (D) hydro carboxymethyl cellulose and hydroxypropyl cellulose Polymer compounds