JP2001010935A - Shampoo composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shampoo composition that inhibits the hair from drying disconnectedly and being charged with static electricity, in spite of formulation of silicone oil thereto in high stability of silicone oil dispersion, shows no greasiness on shampooing and gives excellent application feelings, for example, comfortable hair slip, good flexibility and combing after being dried, although higher alcohols are formulated thereto. SOLUTION: This shampoo composition comprises (A) anionic surfactant, (B) at least one of co- or terpolymer selected from acrylamide- dialkyldiallylammonium salt copolymers acrylic acid-acrylamide- dialkyldiallylammonium terpolymers, (C) silicone oil in a dispersion form with an average particle size of <=2 μm and (D) a higher alcohol melting at 20-100 deg.C.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention shows good silicone dispersion stability, and provides appropriate slip, good flexibility, combability, antistatic property, anti-sticking property and the like to hair. The present invention relates to a shampoo composition having excellent feeling of use without stickiness.

[0002]

2. Description of the Related Art In order to obtain a rinse-in shampoo having a rinsing effect that improves the texture of hair after washing and drying, it is common practice to incorporate silicone oil into ordinary shampoo. However, the addition of silicone oil greatly improves combability and smoothness, but on the other hand, has problems such as flickering and generation of static electricity. In order to improve static electricity, roughness, etc., it is common to add a cationic polymer, a cationic surfactant, etc., but this method deteriorates the dispersion stability of the silicone oil in the composition, and There are problems such as separation.

[0003] In addition to the silicone oil, hair cosmetics (JP-A-4-230616, JP-A-3-2112) each containing a wax as a component for improving the texture of hair have been proposed. . However, this method reduces the roughness and gives smoothness and good passability.However, when wax is simply added to the shampoo, it is sticky when shampoo is rinsed off due to the properties of wax such as toughness. There are drawbacks, such as that the handrail is poor.

[0004] In addition, hair cosmetics containing a neutralized product of a specific di-long chain tertiary amine compound (JP-A-5-2218)
No. 31) has been proposed. Although this method gives gloss, appropriate slip and voluminous feeling to hair, it has a drawback that when used as a shampoo, since silicone is not compounded, comb feeling and smooth finished feeling are not sufficient.

Further, a conditioning shampoo composition containing an anionic surfactant, a long-chain fatty alcohol, a cationic polyethyleneimine and, in some cases, a non-volatile silicone (JP-A-7-48236) has been proposed. This method imparts excellent conditioning to the hair, but has a relatively high viscosity of about 3000 to about 8000 centipoise in order to maintain stability over a long period of time, and has the disadvantage of inefficient factory productivity. There is.

[0006]

DISCLOSURE OF THE INVENTION The present invention provides a composition containing silicone oil, which prevents rust and static electricity, has good dispersion stability of silicone oil, and contains higher alcohols. It is an object of the present invention to provide a shampoo composition which has no stickiness at the time of shampooing, has an appropriate feeling of use after drying, has a suitable sliding property, has good flexibility and combability. And

[0007]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems. As a result, the silicone oil and higher alcohols are blended, and after drying, have appropriate flexibility, comb, and antistatic properties. It has been found that a shampoo composition having an excellent feel upon use and a good dispersion stability can be obtained by further blending a specific acrylic polymer with a system that provides anti-sticking properties, The present invention has been completed. That is, according to the present invention, in the shampoo composition, (A) an anionic surfactant,
(B) a copolymer of acrylamide and a dialkyldiallylammonium salt, a copolymer of acrylic acid and a dialkyldiallylammonium salt, and a copolymer of acrylic acid, acrylamide and a dialkyldiallylammonium salt
At least one copolymer selected from the base copolymers, (C) a silicone oil present as dispersed particles having an average particle diameter of 2 μm or less, and (D) a higher alcohol having a melting point of 20 to 100 ° C. A shampoo composition is provided. According to the present invention, there is provided a shampoo composition characterized by further comprising (E) an amphoteric surfactant and / or a polar nonionic surfactant, in addition to the components (A) to (D). Provided.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail. In the shampoo composition of the present invention, the anionic surfactant used as the component (A) is not particularly limited, and a commonly used anionic surfactant can be used. Representative examples thereof include, for example, α-olefin sulfonate, alkyl sulfate polyoxyethylene alkyl ether sulfate, paraffin sulfonate, alkyl sulfosuccinate, N-acyl-β-alanine salt,
N-acyl glutamate, polyoxyethylene alkyl ether carboxylate, acyl methyl taurate and the like can be mentioned. In this case, the counter ion generally includes ions such as sodium, potassium, triethanolamine, diethanolamine, and ammonium.

The compounding amount of the component (A) in the crude product may be an amount usually used as a shampoo composition, that is, 3 to 30% by weight, preferably 5 to 25% by weight, more preferably 8 to 25% by weight. 20% by weight. If the amount is less than 3% by weight, the foaming power and the detergency will be poor, and if it exceeds 30% by weight, the conditioning effect will be poor. In the present invention, as the component (B), at least one of the following three types of copolymers is used. (B-1): a copolymer of acrylamide and a salt of dialkyldiallylammonium, (B-2): a copolymer of acrylic acid and a salt of dialkyldiallylammonium, and (B-3): a copolymer of acrylic acid and acrylamide. Terpolymer with dialkyldiallylammonium salt. Typical examples of (B-1) include mercoat 550 (manufactured by Calgon), which is a copolymer of acrylamide and dimethyldiallylammonium chloride.
As (B-2), Mercoat 28 (trade name) which is a copolymer of acrylic acid and dimethyldiallylammonium chloride
0 (manufactured by Calgon) as a representative example, and (B
A typical example of -3) is a high-grade Mercoat Plus 3330 (manufactured by Calgon), which is a copolymer of acrylic acid, acrylamide, and dimethyldiallylammonium chloride. The above-mentioned components (B-1) to (B-3) may be used alone or in combination of two or more, but the mercoat 550, which is a copolymer of acrylamide and dimethyldiallylammonium chloride, may be used. Most preferred. The amount of (B) in the composition is (B-1) to (B-
3) 0.05 to 2% by weight (as a pure polymer) is suitable, alone or in combination of two or more, and particularly preferably 0.1 to 2% by weight.
１1% by weight. If the amount is less than 0.05% by weight, the dispersibility of the silicone and the rinsing performance tend to deteriorate, and if it exceeds 2% by weight, problems such as stickiness after drying may occur.

The silicone oil used as the component (C) in the present invention is not particularly limited as long as it can be present as dispersed particles having an average particle size of 2 μm or less in the composition. Typical examples thereof include dimethylpolysiloxane (including highly polymerized dimethylpolysiloxane and silicone rubber), methylphenylpolysiloxane, polyether-modified silicone liquid, and polyamino-modified silicone oil. These silicone oils may be used alone or in combination of two or more. In particular, the viscosity of dimethylpolysiloxane at 25 ° C. is 5 to 5.
Those having about 1,000,000 centistokes are preferably used.

The silicone oil used in the present invention must have an average particle size of 2 μm or less. If it is larger than 2 μm, dispersion stability is poor and separation occurs. As the dispersed particles of silicone oil, those obtained by either mechanical emulsification or emulsion polymerization can be used favorably. The amount of the silicone oil in the composition is preferably from 0.1 to 5% by weight, particularly preferably from 0.5 to 3% by weight. If it is less than 0.1% by weight, the combability and smoothness of the finish may not be sufficiently obtained. On the other hand, if it exceeds 5% by weight, the inherent performance of the shampoo may be impaired, for example, the dispersion stability of the silicone may be deteriorated, or the foaming during hair washing may be deteriorated.

The higher alcohol used as the component (D) in the present invention is not particularly limited as long as it has a melting point of 20 to 100 ° C. If the melting point is less than 20 ° C., sufficient finish performance cannot be obtained after drying, while if it exceeds 100 ° C., the production becomes difficult and unsuitable. The amount of higher alcohols in the composition is
It is suitably from 0.05 to 5% by weight, preferably from 0.1 to 5% by weight.
3% by weight. If it is less than 0.05% by weight, the effect of preventing rusting is inferior, and if it exceeds 5% by weight, the foaming performance and the finger passing property at the time of rinsing deteriorate.

In the present invention, the higher alcohols used as the component (D) may be those usually used in cosmetics. Specific examples of preferred higher alcohols include:
For example, lauryl alcohol, tridecanol, myristyl alcohol, pentadecanol, cetyl alcohol, heptadecanol, stearyl alcohol, nonadecanol, aralkyl alcohol, heneicosanol,
Examples include behenyl alcohol, tricosanol, carnavir alcohol, pentacosanol, ceryl alcohol, koryanyl alcohol, nonacosanol, myristyl alcohol, melisyl alcohol, lacceryl alcohol, elaidyl alcohol and the like. These higher alcohols may be used alone or in combination of two or more.

In the present invention, it is highly preferable to mix an amphoteric surfactant and / or a polar nonionic surfactant as the component (E), since the feeling such as fingering during rinsing is further improved. Representative examples of the amphoteric surfactant in this case include betaine-type amphoteric surfactants and imidazolinium betaine-type amphoteric surfactants, and examples of the polar nonionic surfactant include amine oxide-type polar nonionic surfactants. Agents are representative.

Examples of the betaine-type amphoteric surfactant include lauryl betaine, coco betaine, amide propyl betaine laurate, amide amide propyl betaine coconut oil and the like. Examples of the imidazolinium betaine-type amphoteric surfactant include 2- Alkyl-N-carboxymethyl-
N-hydroxyethyl imidazolinium betaine, N-
Palm oil fatty acid acyl-N'-carboxyethyl-N'-
Hydroxyethyl ethylenediamine sodium and the like can be mentioned. Further, examples of the polar nonionic surfactant include lauryl dimethylamine oxide. Also,
Examples of the polar nonionic surfactant include lauryl dimethylamine oxide. The compounding amount of the component (E) in the composition is suitably from 0.05 to 10% by weight, and preferably from 0.2 to 5% by weight. If the content is less than 0.05% by weight, the improvement in finger passing property is small.
Separation of silicones, higher alcohols, etc. is likely to occur, and dispersion is likely to occur.

In the shampoo composition of the present invention, various additives generally used in addition to the above-mentioned essential components, such as coconut oil fatty acid alkanol, may be used as required according to the purpose of use, as long as the object of the present invention is not impaired. Amides, sucrose fatty acid esters, alkyl glycosides, nonionic surfactants such as methyl glucoside fatty acid ester, thickeners such as hydroxyethyl cellulose, pearlescent agents,
Polyols, antibacterial agents, preservatives, pH adjusters such as citric acid and triethanolamine, fragrances, and solvents such as water can be added.

[0017]

Next, the present invention will be described more specifically with reference to examples and comparative examples, but the present invention is not limited to these examples. The percentages described below are on a weight basis.

The performance of the shampoo compositions shown below was evaluated by the following methods. (1) Half head pair comparison by 10 panelists (Evaluation of fingering after drying, non-stickiness after drying, non-stickiness after drying) As a standard sample, sodium polyoxyethylene lauryl ether sulfate (polyoxyethylene average addition mole) (Number: 3 mol): 15%, cocoamidopropyl betaine: 3%, cationized cellulose: 0.5
%, Dimethyl silicone emulsion (50%, particle size 0.3 μm): 5%, coconut oil fatty acid diethanolamide: 1.5%, flavor: 0.4%, citric acid: pH 6.0
Adjustment amount, water: a mixture consisting of the balance was prepared. The hair was divided into left and right sides, 3 g of the standard sample was applied to one side, and 3 g of the test sample was applied to the other side. The hair was washed, and shampoo, finger-drying property after drying, non-stickiness and non-stickiness were reported by 10 subjects as follows. The evaluation was performed as described above, and the scores of ten persons were calculated and indicated by the following symbols. Rating: +3 points: Very good compared to the standard sample +2 points: Good compared to the standard sample +1 point: Good compared to the standard sample 0 points: Compared to the standard sample, equivalent -1 point: Standard Slightly poor compared to sample -2 points: Bad compared to standard sample -3 points: Very bad compared to standard sample Evaluation: ：: 30 to 20 points 〇: 19 to 10 points △: 9 to- 10 points ×: -10 to 130 points (2) Evaluation of dispersibility in silicone oil A test sample (shampoo solution) was placed on a slide glass on a phase contrast microscope with a magnification of 400 times, covered with a cover glass, and observed under a microscope. The silicone oil dispersibility was evaluated according to the standard. 〇: Uniform dispersion without aggregation of silicone oil particles observed △: Some aggregation observed X: Mostly aggregated and uneven

Examples 1 to 24 and Comparative Examples 1 to 7 A shampoo composition having the component composition (% as pure content) shown in Table 1 was prepared, its performance was evaluated, and the results were shown in Tables 1, 2 and The results are shown in Table 3 (the numbers in the table indicate the blending unit wt%).

The symbols of the components in the table mean the following. Anionic surfactant (A): sodium polyoxyethylene lauryl ether sulfate (average ethylene oxide addition mole number: 3 moles) Anionic surfactant (B): polyoxyethylene lauryl ether ammonium sulfate (average ethylene oxide addition mole number: 2 mol) Anionic surfactant (C): N-lauroyl-N-methyl-β-alanine triethanolamine Anionic surfactant (D): sodium alpha-olefin sulfonate Anionic surfactant (E): poly Sodium oxyethylene lauryl ether acetate (average number of moles of ethylene oxide added: 3 mol) Amphoteric surfactant (A): Amidopropyl betaine laurate Amphoteric surfactant (B): 2-alkyl-N-carboxymethyl-N-hydroxy Ethyl imidazolinium Betaine Polar nonionic surfactant (A): Lauryl dimethylamine oxide Cationized cellulose (A): Ucare Polymer JR400 (Union Carbide) Cationized guar gum (A): Jaguar C13S (Rhone Boulan) Silicone emulsion (A) : Non-ionic emulsion of dimethylpolysiloxane (100,000 cs) base oil (50%) [average particle size 0.3 µm (mechanical emulsification)] Silicone emulsion (B): dimethylpolysiloxane (100,000 cs) base oil (60 %) Nonionic emulsion [average particle diameter of about 2 μm (mechanical emulsification)] Silicone emulsion (C): anionic emulsion of dimethylpolysiloxane (100,000 cs) base oil (45%) [average particle diameter of about 0.3 μm (Emulsion polymerization) Silicone emulsion (D): amino-modified silicone oil base oil (about 2 % Anionic emulsion) [average particle size of about 0.3 [mu] m (emulsion polymerization) silicone emulsion (E): dimethylpolysiloxane (100,000 cs) nonionic emulsion of base oil (60%) Average particle size 4 [mu] m]

[0021]

[Table 1]

[0022]

[Table 2]

[0023]

[Table 3]

As can be seen from Tables 1, 2 and 3, the shampoo compositions of the present invention were all excellent in finger-drying, dryness and non-stickiness after drying after shampooing. In contrast, Comparative Examples 1 to 7 do not satisfy the essential conditions according to the present invention, so that it is clear that the object of the present invention has not been achieved.

[0025]

The shampoo composition of the present invention, despite containing silicone oil and higher alcohols, shows good dispersion stability of silicone oil, and good shampooing property and antistatic property to hair. It is a shampoo composition that gives an anti-sagging property, and is non-greasy and has an excellent feeling in use.

Continued on the front page F-term (reference) 4C083 AC071 AC072 AC182 AC302 AC562 AC692 AC712 AC792 AD131 AD132 AD151 AD152 AD162 AD352 BB04 BB05 BB07 CC38 EE06 EE07 EE50 4H003 AB05 AB10 AB31 AB46 AC15 AD04 BA12 DA02 EB04 EB08 EB30 EB37 EB37 EB30 EB30

Claims (2)

[Claims] (A) an anionic surfactant, (B) a copolymer of acrylamide and a salt of dialkyldiallylammonium, a copolymer of acrylic acid and a salt of dialkyldiallylammonium, and acrylic acid, acrylamide and dialkyl At least one copolymer selected from terpolymers with a diallylammonium salt,
A shampoo composition comprising (C) a silicone oil present as dispersed particles having an average particle diameter of 2 μm or less, and (D) a higher alcohol having a melting point of 20 to 100 ° C. 2. The shampoo composition according to claim 1, further comprising (E) an amphoteric surfactant and / or a polar nonionic surfactant.