JPH05262625A - Shampoo composition - Google Patents

Abstract

PURPOSE:To provide a shampoo composition enabling smooth passing of fingers through the hair in shampooing, giving dried hair having moist feeling and exhibiting excellent dispersion stability of water-insoluble silicone oil. CONSTITUTION:The objective shampoo composition having the above effects can be produced by compounding, as essential components, (A) a water-insoluble silicone oil or its emulsion, preferably a dimethylpolysiloxane expressed preferably by formula I n is integer of >=0) and having a viscosity of about 5-1,000,000 cst at 25 deg.C and (B) one or more kinds of glucose derivatives expressed by formula II (R<1> is H or 1-4C alkyl; R<2> is 9-21C alkyl or alkenyl; x and y are integers representing the polymerization degree of OCH2CH2 and satisfying the formula x+y=50 to 250), preferably a polyoxyethylene(120 mol)-dioleic acid methylglucoside.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a novel shampoo composition, and more particularly, a shampoo composition which has good hand-by-hand passage when washing hair, has no dryness after drying hair, and has excellent dispersion stability. It is about.

[0002]

2. Description of the Related Art Conventionally, in hair washing, a hair washing action has been mainstream in which a cleaning agent and a finishing agent are sequentially and separately used. However, in recent years, with the development of a composition having both a cleaning effect and a finishing effect, it has become possible to obtain the finishing effect only by washing, so that the hair-washing behavior can be rationalized. Therefore, various compositions having a cleaning effect and a finishing effect have been proposed so far. However, many of these compositions have a cleaning effect by adding a specific component having a finishing effect to a cleaning agent. In order to obtain both the finishing effect and the finishing effect, a water-insoluble silicone oil is used as a component imparting such finishing effect.

Since this silicone oil is insoluble in water, when it is added to the composition, it exists as oil droplets, but it has the drawback that the oil droplets aggregate over time, leading to non-uniformity of the composition. There is. Therefore, in order to improve such drawbacks, a method of using a suspending agent such as ethylene glycol monostearate or distearate for stabilizing dispersion has been proposed (JP-A-62-77311).

However, even with such a method, a sufficiently satisfactory result cannot be obtained for stabilizing the dispersion of the water-insoluble silicone oil, and in addition, it can be used as a by-pass when washing hair and after dryness of hair. In terms of its performance, it cannot be said that it satisfies the consumer's demands.

[0005]

Under the circumstances described above, the present invention provides good handling by hand when washing hair, no dryness after drying hair, and stable dispersion of water-insoluble silicone oil. The purpose of the present invention is to provide a shampoo composition having excellent properties.

[0006]

As a result of intensive studies to develop a shampoo composition having desirable properties, the present inventors have found that a water-insoluble silicone oil or its emulsion is used in combination with a specific glucose derivative. As a result, it was found that these components act synergistically to improve the hand passage when washing hair, suppress dryness after drying hair, and significantly improve the dispersion stability of the water-insoluble silicone oil, The present invention has been completed based on this finding.

That is, the present invention comprises (A) at least one selected from water-insoluble silicone oil and emulsion of water-insoluble silicone oil, and (B) general formula

[Chemical 2] (In the formula, R ¹ is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, R ² and R ³ are each an alkyl group or an alkenyl group having 9 to 21 carbon atoms, and x and y are the degree of polymerization of an oxyethylene group. And a total amount thereof is an integer of 50 to 250), and at least one selected from the glucose derivatives.

In the composition of the present invention, a water-insoluble silicone oil or its emulsion is used as the component (A). The water-insoluble silicone oil is not particularly limited as long as it is insoluble in water, and examples thereof include dimethylpolysiloxane (including highly polymerized dimethylpolysiloxane and silicone rubber), methylphenylpolysiloxane, and polyether-modified silicone. Oils, polyamino-modified silicone oils and the like can be mentioned. The emulsion of water-insoluble silicone oil is obtained by emulsifying these water-insoluble silicone oils with a surfactant by an appropriate method. These water-insoluble silicone oils and emulsions thereof may be used alone or in combination of two or more. Further, among the water-insoluble silicone oils and emulsions thereof, in particular, the general formula (CH ₃ ) ₃ SiO [(CH ₃ ) ₂ SiO] nSi (CH ₃ ) ₃ (II) (n in the formula is 0 or 1 or more. The viscosity at a temperature of 25 ° C. represented by
Dimethylpolysiloxane of about 10,000 centistokes or an emulsion thereof is suitable.

On the other hand, the glucose derivative represented by the general formula (I) is used as the component (B). This glucose derivative is, for example, an ethylene oxide adduct of a higher skeleton such as isostearic acid or oleic acid ester-bonded to a sugar skeleton such as methyl glucose or ethyl glucose, and specific examples of such a derivative include polyoxyethylene (150 Mol) diisostearate methyl glucoside, polyoxyethylene (120
Mole) diisostearic acid methyl glucoside, polyoxyethylene (120 mol) dioleic acid methyl glucoside, and the like. Among them, polyoxyethylene (120 mol) dioleic acid methyl glucoside (trade name Glucamate DOE-120, Amacole Co., Ltd. Manufactured) is preferable. The glucose derivative may be used alone or in combination of two or more.

In the shampoo composition of the present invention, in addition to the above-mentioned components (A) and (B), if desired, additional components conventionally used in shampoo compositions such as surfactants and cationized cellulose are also included. Such as cationic polymer compounds, water, glycerin, humectants such as propylene glycol, viscosity adjusting agents such as ethanol, hexylene glycol, hydroxyethyl cellulose, methyl cellulose, pH adjusting agents such as citric acid, chelating agents, tocopherol acetate, etc. Antioxidants, antibacterial agents such as benzoic acid and salicylates, antidandruff agents such as zinc pyrithione and piroctone olamine, as well as fragrances, protein derivatives, animal and plant extracts and pigments can be added.

Examples of the surfactant include anionic surfactants such as α-olefin sulfonate, polyoxyethylene alkyl sulfate, paraffin sulfonate, amino acid type anionic surfactant and sulfosuccinic acid type anionic surfactant. Surfactants, amphoteric surfactants such as alkyl betaines, imidazolinium betaines, sulfobetaines, amidopropyl betaines, alkyl glucosides, sugar ester surfactants, nonionic surfactants such as fatty acid alkanolamides, and various other Examples include cationic surfactants.

[0012]

The shampoo composition of the present invention contains a water-insoluble silicone oil or its emulsion and a specific glucose derivative, and has good hand-by-hand passage at the time of washing hair and has a dryness after drying hair. It has no stickiness and is excellent in dispersion stability.

[0013]

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

The performance and dispersion stability of the shampoo composition were evaluated as follows. (1) Hand-washing when washing hair As a standard sample, sodium polyoxyethylene lauryl ether sulfate (p = 3) 15 wt%, coconut oil fatty acid diethanolamide 3 wt%, anhydrous sodium sulfate 1 wt
%, An appropriate amount of citric acid / monohydrate (adjusted amount of pH 6.0) and the balance of purified water were adjusted.

The hair is divided into right and left, and the standard sample 3 is provided on one side.
3 g of the test sample was applied to the other side to wash the hair, and the handing procedure at the time of washing the hair was evaluated as follows according to the report of 10 subjects, and the total score of 10 subjects was calculated, and the following was calculated. It was evaluated according to the symbols. Rating: +3 points: Very good handing when washing hair compared to standard sample +2 points: Good handing when washing hair compared to standard sample +1 point: When washing hair compared to standard sample Passing is slightly good 0 point: Passing by hand when washing hair is equivalent to the standard sample -1 point: Passing by hand when washing hair is slightly worse than the standard sample -2 point: Compared with the standard sample And poor handling by hand when washing hair -3 points: Very bad bypass when washing hair compared to standard sample Rating: ◎: 30 to 20 points ○: 19 to 10 points △: 9 to -10 Points x: -11 to -30 points

(2) Dryness of Hair After Drying Hair is divided into right and left, one of which is 3 g of the standard sample and the other of which is 3 g of the test sample, which is washed to dry hair, and then dryness is applied to 10 people. According to the report of the subject, the evaluation was performed as follows, and the total of the scores of 10 subjects was calculated and evaluated according to the following symbols.

Rating: +3 points: Very dryness after drying hair is better than that of the standard sample +2 points: Less dryness after drying hair than that of the standard sample +1 point: Compared to standard sample And the dryness after drying hair is a little good 0 point: The dryness after drying hair is equivalent to that of the standard sample -1 point: The dryness after drying hair is a little worse than that of the standard sample -2 points: Poor dryness after drying hair compared to standard sample-3 points: Very poor dryness after drying hair compared to standard sample Rating: ◎: 30 to 20 points ○: 19 to 10 points △: 9 to -10 points ×: -11 to -30 points

(3) Dispersion Stability The adjusted shampoo composition was stored at 45 ° C. for 1 week and judged by visual observation or a microscope. The judgment criteria are as follows. ◯: Evenly dispersed Δ: No coalescence, but separated ×: Coalescence, separated

Examples 1 to 15 and Comparative Examples 1 to 6 Shampoo compositions having the compositions shown in Table 1 and Table 2 were prepared,
The performance was evaluated. The results are shown in Tables 1 and 2.

[0020]

[Table 1]

Note 1) Trade name Glucamate DOE-120
(Amakor product)

[0022]

[Table 2]

Note 1): Trade name Glucamate DOE-12
0 (manufactured by Amakor) 2): Dimethyl polysiloxane (100,000 cs)
Emulsion obtained by emulsifying 40 wt% of polyoxyethylene alkylphenyl ether phosphoric acid and polyoxyethylene nonylphenyl ether 3): Leoguard GP [manufactured by Lion Corporation] 4): Marquat 550 (manufactured by Merck) 5): Octopirox (Made by Hoechst)

As is clear from Tables 1 and 2, the shampoo composition (product of the present invention) containing the water-insoluble silicone oil and the glucose derivative represented by the general formula (I) is excellent in dispersion stability and is good for washing hair. It was confirmed that it was excellent in dryness and dryness after the hair was dried. On the other hand, only water-insoluble silicone oil (Comparative Examples 1 to 3)
Also, the compositions in which only one of glucose derivative and glucose derivative (Comparative Examples 4 to 6) was blended were inferior in all of the evaluation items and could not achieve the object of the present invention.

Claims (3)

[Claims] 1. At least one selected from the group consisting of (A) a water-insoluble silicone oil and a water-insoluble silicone oil emulsion, and (B) a general formula: (In the formula, R ¹ is a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, R ² and R ³ are each an alkyl group or an alkenyl group having 9 to 21 carbon atoms, and x and y are each a polymerization of an oxyethylene group. Degrees, the sum of which is 50-25
Which is an integer of 0), and at least one selected from the glucose derivatives. 2. The shampoo composition according to claim 1, wherein the component (A) is dimethylpolysiloxane, an emulsion of dimethylpolysiloxane, or both. 3. The shampoo composition according to claim 1, wherein the component (B) is polyoxyethylene dioleic acid methyl glucoside.