JPH11228359A - Shampoo composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a shampoo composition suitable as a rinse-in-shampoo excellent in touch such as finger combing properties at the time of rinsing in spite of a silicone oil or a wax contained therein and capable of well preventing the dryness and looseness of hair and generation of static electricity after drying. SOLUTION: This shampoo composition contains (A) an anionic surfactant, (B) a (polyethylene)hardened castor oil, (C) a copolymer of acrylamide or/and acrylic acid and a salt of a dialkyldiallylammonium, (D) a silicone oil present as dispersed particles having <=2 μm average particle diameter and (E) a wax having the melting point terminating at 50-100 deg.C and present as dispersed particles having <=1 μm average particle diameter.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shampoo composition, and more particularly to a hair shampoo composition, which is used for washing hair, and after washing, has good flexibility without using a rinse and a treatment agent for further improving the feeling. Comb through, antistatic,
The present invention relates to a shampoo composition having anti-rusting properties and the like.

[0002]

2. Description of the Related Art It is a common practice to incorporate silicone oil into ordinary shampoos as a suitable rinsing shampoo having a rinsing effect that improves the texture of hair after washing and drying. However, by blending the silicone oil, combability and smoothness can be greatly improved, but there are problems such as smallness and generation of static electricity.

[0003] In order to improve static electricity, roughness, etc.,
It is common to add a cationic polymer, a cationic surfactant or the like, but this method has problems such as deterioration of the dispersion stability of the silicone oil in the composition and separation over time.

[0004] In addition to silicone oils, hair cosmetics (JP-A-4-230616 and JP-A-3-2112) in which waxes are blended as components for improving the feeling of hair have been proposed. . However, this method suppresses the roughness and gives a smooth and good passing property.However, when the wax is simply blended into the shampoo, the wax has a sticky property due to the properties of the wax such as toughness, so that it is sticky when the shampoo is rinsed away. There are drawbacks such as sticking and poor handrails.

[0005]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a composition containing a silicone oil, which is capable of preventing static electricity generation and rusting well and having good dispersion stability of the silicone oil. Another object of the present invention is to provide a shampoo composition suitable as a rinsing-in shampoo, which has a very good feel such as fingering during rinsing, even though the composition contains a wax.

[0006]

Means for Solving the Problems The present inventors further blended (polyoxyethylene) hydrogenated castor oil and an acrylic polymer with a system in which silicone oil and wax were blended and the texture after drying was improved. By doing so, it has been found that the feel during rinsing and the dispersibility of silicone oil are improved, and that a shampoo composition that is totally excellent from the shampoo to the feel after drying is obtained, thereby completing the present invention.

That is, according to the present invention, firstly, (A) anionic surfactant, (B) hydrogenated castor oil and / or polyoxyethylene hydrogenated castor oil, (C) a salt of acrylamide and dialkyldiallylammonium A copolymer with
At least one copolymer selected from a copolymer of acrylic acid and a salt of dialkyldiallylammonium and a terpolymer of acrylic acid, acrylamide and a salt of dialkyldiallylammonium, and (D) an average particle diameter of 2 μm or less (E) a silicone oil present as dispersed particles of
A shampoo composition characterized by comprising a wax having a melting point ending at 50 to 100 ° C and present as dispersed particles having an average particle size of 1 µm or less. Second, the shampoo composition containing the components (A) to (E) further contains (F) an amphoteric surfactant and / or a polar nonionic surfactant. A shampoo composition is provided. Thirdly, there is provided the shampoo composition according to the above first or second, wherein the wax of the component (E) is at least one selected from carnauba wax, candelilla wax, beeswax, wood wax and rice wax. Is done.

[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, acylmethyltaurine salt and the like can be mentioned. In this case, counter ions generally include sodium, potassium, triethanolamine, diethanolamine, ammonium and the like.

The amount of component (A) in the composition may be the amount usually used as a shampoo composition, that is, 3 to 30% by weight, preferably 5 to 25% by weight, more preferably 8 to 20% by weight. % 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, the hardened castor oil and / or the polyoxyethylene hardened castor oil used as the component (B) may be those commonly used in cosmetics. The polyoxyethylene hydrogenated castor oil is preferably one having an ethylene oxide addition mole number of about 5 to 100 moles.
Those having 0 to 40 mol added are preferred.

The amount of the component (B) in the composition is 0.0
5 to 8% by weight is suitable, particularly preferably 0.5 to 5% by weight.
% By weight. If it is less than 0.05% by weight, good rinsing properties and silicone dispersibility may not be obtained.

In the present invention, at least one of the following three copolymers is used as the component (C). (C-1): a copolymer of acrylamide and a dialkyldiallylammonium salt; (C-2): a copolymer of acrylic acid and a dialkyldiallylammonium salt; (C-3): acrylic acid and acrylamide Terpolymers with salts of dialkyldiallylammonium. Typical examples of (C-1) include Mercoat 550 (trade name, manufactured by Calgon), which is a copolymer of acrylamide and dimethyldiallylammonium chloride.
-2) is a product of Mercoat 280, which is a copolymer of acrylic acid and dimethyldiallylammonium chloride.
(Manufactured by Calgon) as a representative example, and (C-
3) is a brand name of a copolymer of acrylic acid, acrylamide and dimethyldiallylammonium chloride.
Coat Plus 3330 (manufactured by Calgon) is a typical example.

The above components (C-1) to (C-3) may be used alone or in combination of two or more. The amount of the component (C) in the composition is from (C-1) to
(C-3) A single compound or a combination of two or more thereof is preferably 0.05 to 2% by weight (as a pure polymer), particularly preferably 0.1 to 1% by weight. If the amount is less than 0.05% by weight, the dispersibility of the silicone and the rinsing performance tend to be deteriorated. If the amount exceeds 2% by weight, problems such as stickiness after drying may occur.

The silicone oil used as the component (D) 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. Representative examples include dimethylpolysiloxane (including highly polymerized dimethylpolysiloxane and silicone rubber), methylphenylpolysiloxane, polyether-modified silicone oil, 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 1,000.
Those having about 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, 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 the amount is less than 0.1% by weight, the combability and smoothness of the finish may not be sufficiently obtained. On the other hand, if the amount exceeds 5% by weight, the dispersion stability of the silicone is deteriorated, and foaming during hair washing is deteriorated. In some cases, the original performance of shampoo may be impaired.

The wax used as the component (E) in the present invention is not particularly limited as long as it has a melting point ending at 50 to 100 ° C. Either natural wax or synthetic wax can be used, but natural wax is more excellent in antistatic property. Specific examples of preferred natural waxes include, for example, the following. In addition,
() Shows the melting point. Carnauba wax (80 ~
86 ° C), candelilla wax (66-71 ° C), beeswax (60-70 ° C), rice wax (70
-77 ° C), wood wax (50-56 ° C) and the like.

The wax must be present as dispersed particles having an average particle size of 1 μm or less. When the average particle size is larger than 1 μm, separation occurs in the shampoo composition, poor dispersion occurs, and finger piercing during rinsing also becomes poor. The amount of the wax in the composition is suitably from 0.05 to 5% by weight, and preferably from 0.1 to 3% by weight, as the wax content. When the content is less than 0.05% by weight, the effect of preventing static electricity generation and rusting is inferior. On the other hand, when the content exceeds 5% by weight, finger penetration during rinsing deteriorates.

In the present invention, it is highly preferable to blend an amphoteric surfactant and / or a polar nonionic surfactant as the component (F), 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, and amide propyl betaine of coconut oil fatty acid. Alkyl-N-carboxymethyl-
N-hydroxyethyl imidazolinium betaine, N-
Coconut oil fatty acyl-N'-carboxyethyl-N'-
Hydroxyethyl ethylenediamine sodium and the like can be mentioned. Further, examples of the polar nonionic surfactant include lauryl dimethylamine oxide.

The compounding amount of the component (F) in the composition is 0.1.
It is suitably from 0.05 to 10% by weight, preferably from 0.2 to 5% by weight.
% By weight. When the content is less than 0.05% by weight, the improvement in finger passing property is small. On the contrary, when the content is more than 5% by weight, separation of silicone, wax and the like is apt to occur, and poor dispersion is liable to occur.

In the shampoo composition of the present invention, various additives generally used in addition to the above-mentioned essential components, for example, coconut oil fatty acid alkanol, may be added to the shampoo composition according to the purpose of use, as long as the object of the present invention is not impaired. Nonionic surfactants such as amides, sucrose fatty acid esters, alkyl glycosides and methyl glucoside fatty acid esters, 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.

[0022]

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 composition was evaluated by the following method. (1) Half-head pair comparison by 10 panelists (fingering of fingers, no dryness after drying, generation of static electricity) Sodium polyoxyethylene lauryl ether hydrosodium (average number of moles of polyoxyethylene added: 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%, fragrance: 0.4%, citric acid: adjusted pH 6.0, water: balance.

The hair was divided into left and right sides, and the standard sample 3 was placed on one side.
g was washed with 3 g of a test sample on the other side, and the finger penetration during shampoo rinsing, the dryness after drying, and the electrostatic charge after drying were evaluated as follows according to the declaration of 10 subjects. The scores of the names were calculated and indicated by the following symbols.

(2) Evaluation of Silicone Dispersibility 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, and the silicone dispersibility was evaluated according to the following criteria. . ：: Uniform dispersion without aggregation of silicone particles observed △: Slight aggregation observed ×: Mostly aggregated and uneven

Examples 1 to 24 and Comparative Examples 1 to 7 Shampoo compositions having the component compositions (% as pure components) shown in Tables 1 to 5 were prepared, and their performance was evaluated. It is shown in Table 5.

The symbols of the components in the table mean the following. Anionic surfactant (A): sodium polyoxyethylene lauryl ether sulfate (average number of moles of ethylene oxide added: 3 moles) Anionic surfactant (B): polyoxyethylene lauryl ether ammonium sulfate (average number of moles of ethylene oxide added: 2 moles) Anionic surfactant (C): N-lauroyl-N-methyl-β-alanine triethanolamine Anionic surfactant (D): Sodium alpha olefin sulfonate Anionic surfactant (E): Polyoxyethylene Sodium 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-hydroxyethylimidazolinium Mbe In polar nonionic surfactant (A): lauryl dimethyl amine oxide cationic cellulose (A): Ucare Polym
er 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) Nonionic emulsion of base oil (60%) Average particle size about 2 μm (mechanical emulsification) Silicone emulsion (C): Anionic emulsion of dimethylpolysiloxane (100,000 cs) 45% base oil Average particle size Silicone emulsion (D): anionic emulsion of amino-modified silicone oil base oil (about 20%) Average particle size: about 0.3 μm (emulsion polymerization) Silicone emulsion (E): dimethylpolysiloxane (100,000 cs) Nonionic emulsion of base oil (60%) Average particle size about 4 m wax emulsion (A): carnauba wax about 1
0% dispersion Average particle diameter about 0.03 μm Wax emulsion (B): about 1 carnauba wax
0% dispersion Average particle diameter about 0.3 μm Wax emulsion (C): about 1 carnauba wax
0% dispersion average particle diameter about 0.9 μm Wax emulsion (D): about 10% candelilla wax Dispersion average particle diameter about 0.03 μm Wax emulsion (E): about 10% bead wax
Dispersion Average particle diameter about 0.03 μm Wax emulsion (F): about 10% dispersion of wood wax
Average particle size about 0.03 μm Wax emulsion (G): about 10% rice wax
Dispersion Average particle size about 0.03 μm Wax emulsion (H): about 1 carnauba wax
0% dispersion average particle size about 2μm

[0028]

[Table 1]

[0029]

[Table 2]

[0030]

[Table 3]

[0031]

[Table 4]

[0032]

[Table 5]

As can be seen from Tables 1 to 5, all of the shampoo compositions of the present invention exhibited good finger-thinning properties during shampoo rinsing, low dryness after drying, and electrostatic chargeability after drying. On the other hand, since Comparative Examples 1 to 7 do not satisfy the essential conditions according to the present invention, it is clear that the object of the present invention has not been achieved.

[0034]

According to the shampoo composition of the present invention, since the shampoo composition contains the above-mentioned components, the shampoo composition has a very good feeling such as finger rubbing when rinsing despite silicone oil and wax. In addition, it can prevent dryness and static electricity after drying.

Claims (3)

[Claims] 1. Anionic surfactant (A), hydrogenated castor oil and / or polyoxyethylene hydrogenated castor oil, (C) copolymer of acrylamide and dialkyldiallylammonium salt, acrylic acid and dialkyl At least one copolymer selected from copolymers with diallylammonium salts and terpolymers of acrylic acid, acrylamide and salts of dialkyldiallylammonium, (D) as dispersed particles having an average particle size of 2 μm or less A shampoo composition comprising: a silicone oil present; and (E) a wax having a melting point ending at 50-100 ° C and present as dispersed particles having an average particle size of 1 µm or less. 2. The shampoo composition containing the components (A) to (E), further comprising (F) an amphoteric surfactant and / or a polar nonionic surfactant. Shampoo composition. 3. The shampoo composition according to claim 1, wherein the wax of the component (E) is at least one selected from carnauba wax, candelilla wax, beeswax, wood wax and rice wax.