JPH0640865A - Shampoo composition - Google Patents

Abstract

(57) [Summary] (Modified) [Objective] To provide a shampoo composition which has an excellent cleaning effect and can improve the feeling of finish without causing squeaking during rinsing. [Structure] Contains a cleaning active ingredient, silicone oil (I), and polyoxyethylene hydrogenated castor oil (II). (In the formula, n = 3 to 2500) [In the formula, x, y, and z each represent an integer of 1 or more, and the degree of polymerization n ₁ (x + y + z) is 5 to 120. ]

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a shampoo composition having both cleaning and finishing effects.

[0002]

2. Description of the Related Art Hitherto, in the washing of hair, it has been general to use a cleaning agent and a finishing agent separately in sequence. However, in recent years, many proposals have been made to obtain a cleaning agent having both a cleaning effect and a finishing effect.

Many such proposals have been made by adding specific ingredients having a finishing effect to conventional detergents.
It seeks to obtain both cleaning and finishing effects. As a component having a finishing effect added to such a detergent, for example, a water-soluble silicone derivative, a water-soluble glyceride derivative, a humectant such as propylene glycol, glycerin, ethylene glycol, or a water-insoluble hydrocarbon oil. , Silicone oil (JP-A-61-210
No. 022) and the like are known. Further, a quaternary ammonium salt as a softening agent or a rinse base material, a nonionic surfactant (JP-A-53-133206), an amphoteric surfactant (JP-A-53-23407), a specific anionic surfactant. It is also known to use a specific cationic surfactant (JP-B-47-47845) (JP-A-52-35203). Further, U.S. Pat. No. 3,472,840 describes that shampoos that incorporate a polymeric JR resin, which is a water soluble cationic cellulose resin, have desirable properties for both shampoo and rinse.

[0004] As described above, with the diversification of hair care behavior in recent years, shampoos having various effects have been developed and are already on the market. Although there are many demands from consumers for shampoos, there is a demand for shampoos having improved performance by providing a washing effect and finishing properties such as smoothness and moistness at the same time with a single hair wash.

[0005]

However, for the purpose of improving the finishing performance, a cleaning agent containing an additive such as the above-mentioned silicone oil or the like causes squeaking during rinsing and is dried by a drier. When finishing, the hair tends to be dry or so-called fly-away occurs, and the hair spreads, which tends to make it difficult to unite.

Conventionally, a cationic cellulose resin has been blended in order to improve the squeaky feeling during rinsing. However, when a silicone oil, particularly a water-insoluble silicone oil, is blended, the squeezing effect of the cationic cellulose resin is not sufficiently exerted, and the consumer's demand cannot be sufficiently satisfied.

The present invention has been made in view of the above points, and provides a shampoo composition having an excellent cleaning effect and capable of improving the feeling of finishing without causing squeaking during rinsing. With the goal.

[0008]

The present invention comprises a cleaning active ingredient and a compound of the general formula (I)

[0009]

[Chemical 3] (In the formula, the degree of polymerization n = 3 to 2500) and a silicone oil represented by the formula (II)

[0010]

[Chemical 4] [In the formula, x, y, and z each represent an integer of 1 or more, and the degree of polymerization n ₁ (x + y + z) is 5 to 120. ] The polyoxyethylene hydrogenated castor oil represented by these is provided, The shampoo composition characterized by the above-mentioned is provided. Hereinafter, the present invention will be described in more detail.

As the cleaning active ingredient used in the present invention, a surfactant for cleaning which is usually added to shampoo compositions can be used. For example, various anionic surfactants such as α-olefin sulfonate, polyoxyethylene alkyl sulfate, paraffin sulfonate, amino acid-based anionic surfactant; alkyl betaine, imidazolinium betaine, sulfobetaine, amidopropyl Amphoteric surfactants such as betaine; sugar ester surfactants such as sucrose fatty acid ester and lower alkyl glucoside fatty acid ester; nonionic surfactants such as long-chain alkyl glucoside and fatty acid alkanolamide; various cationic surfactants, etc. Can be mentioned. The amount of the active ingredients for cleaning is 5 to 30% by weight of the whole shampoo composition, especially 1
It is preferably from 0 to 20% by weight.

The silicone oil (I) used in the present invention is a dimethylpolysiloxane represented by the general formula (I) and has a degree of polymerization n of 3 to 2500, more preferably 800.
~ 2,500 are used. Of these, n is 1000
A polymer having a high degree of polymerization of 2,500 has an effect of particularly improving the moist feeling of the dried hair.

More specifically, the silicone oil (I) used in the present invention is, for example, SH-200 manufactured by Toray Silicone Co., Ltd. (viscosity 0.65 CS to 1,000,000 CS, n = 17).
50) can be used.

The amount of the silicone oil (I) blended is 0.01 to 10% by weight, especially 0.1 to 5% by weight based on the whole shampoo composition.
It is preferably set to wt%. If it is less than 0.01% by weight, the finishing properties such as combing and smoothness of hair may not be sufficiently exhibited, while if it exceeds 10% by weight, the feel at the time of rinsing and the feeling during rinsing may be caused due to excessive silicone oil. Not only is the hair cohesiveness deteriorated, but also the dispersibility may be deteriorated.

Another essential component used in the present invention is polyoxyethylene hydrogenated castor oil (II) represented by the general formula (II). In hydrogenated castor oil (II),
x, y, and z each represent an integer of 1 or more, and the degree of polymerization n ₁ (x
+ Y + z) is 5 to 120, more preferably 10 to 50.

In polyoxyethylene hydrogenated castor oil (II), polyoxyethylene (20 moles) hydrogenated castor oil having an average addition mole number of 20 (trade name, Emerex HC
-20, manufactured by Nippon Emulsion Co., Ltd.) is preferably used.

The polyoxyethylene hydrogenated castor oil (II) is used in an amount of 0.1 to 5% by weight based on the whole shampoo composition.
In particular, it is preferably set to 0.5 to 3% by weight. If the blending amount is less than 0.1% by weight, the feel during rinsing, the moisturizing feel during finishing, and the cohesiveness may be insufficient, whereas if the blending amount exceeds 5% by weight, the finished feel may be poor. Problems such as being heavy and sticky are likely to occur.

In addition to the above-mentioned two components, the shampoo composition of the present invention contains, if necessary, conventionally used additional components, for example, cationic polymer compounds such as cationized cellulose; water, glycerin. Moisturizing agents 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, antioxidants such as tocopheryl acetate; benzoic acid, salicylates, etc. Antibacterial acid agent; Antidandruff agent such as zinc pyrithione and piroctone olamine; Fragrance; Protein derivative; Animal and plant extract;
A dye or the like can be added.

[0019]

As described above, according to the shampoo composition of the present invention, by using the silicone active ingredient (I) and the polyoxyethylene hydrogenated castor oil (II) in combination as the cleaning active ingredient,
It provides excellent finishing performance such as moist feeling after hair drying, cohesiveness and smoothness, and can prevent creaking during rinsing.

[0020]

EXAMPLES Next, examples of the present invention will be described in detail. The present invention is not limited to these examples. First, a method for evaluating a shampoo composition will be described prior to Examples. (1) No squeaking when rinsing

As standard samples, sodium polyoxyethylene lauryl ether sulfate (P = 3) 15 wt%, coconut oil fatty acid diethanolamide 3 wt%, anhydrous sodium sulfate 1 wt%, citric acid monohydrate proper amount (pH 6.0 adjustment amount) And a balance of purified water.

Hair is divided into left and right, and one side has a standard sample of 3 g.
3 g of the test sample was applied to the other, and the hair was washed, and the squeakiness at the time of rinsing was sensory-evaluated according to a paired evaluation method by 10 examinees. The evaluation criteria are as follows. ◎: The squeakiness during rinsing is clearly superior to that of the standard sample. ◯: The squeakiness during rinsing is slightly superior to that of the standard sample. Δ: The squeaklessness during rinsing is equivalent to that of the standard sample. Certain x: Insufficient squeakiness during rinsing compared to the standard sample (2) Moist feeling of hair A sensory evaluation was performed in the same manner as in the evaluation method of (1). However, the evaluation criteria in this case are as follows. ◎: The moist feeling is clearly superior to the standard sample ○: The moist feeling is slightly superior to the standard sample Δ: The moist feeling is equivalent to that of the standard sample ×: The moist feeling is inferior to the standard sample (3) Sensory evaluation was performed in the same manner as in the evaluation method of hair cohesiveness (1). However, the evaluation criteria in this case are as follows. ⊚: Cohesiveness is clearly superior to the standard sample ◯: Cohesiveness is slightly superior to the standard sample Δ: Cohesiveness is equivalent to the standard sample ×: Cohesiveness is inferior to the standard sample Example 1 ~ 12, Comparative Examples 1 to 3

Shampoo compositions of the present invention and comparative examples having the compositions shown in Tables 1 and 2 were prepared, respectively. In these shampoo compositions of the present invention, as the silicone oil (I) which is an essential component of the present invention, dimethylpolysiloxane (10CS, 10,000CS, 100,000CS) is another essential component, polyoxyethylene cured. Castor oil (II)
As, the average number of moles of ethylene oxide added, 20,40,
100 mol of each was used. The shampoo compositions of Examples 1 to 12 and Comparative Examples 1 to 3 were evaluated for performance according to the above-mentioned evaluation methods (1) to (3). The results are also shown in the table.

[0024]

[Table 1]

[0025]

[Table 2]

As is clear from Tables 1 and 2, the shampoo compositions of Examples 1 to 12 in which the silicone oil (I) and the polyoxyethylene hydrogenated castor oil (II) were blended did not squeak during rinsing. In addition, it was confirmed that both of the finishing effects (giving a moist feeling and a cohesiveness) were excellent.

On the other hand, the shampoo compositions of Comparative Examples 1 to 3 which contained the silicone oil (I) but did not contain the polyoxyethylene hydrogenated castor oil (II) exhibited squeaky creases during rinsing. Although it was similar to the standard sample in the point of lack of ease, the finishing effects (giving moist feeling and cohesiveness) were all inferior to the standard sample, and the object of the present invention could not be achieved.

[0028]

Industrial Applicability As described above, the shampoo composition of the present invention has an excellent cleaning effect, can eliminate the squeakiness of hair during rinsing, and has a moisturizing and cohesiveness after hair drying. It has an effect such as excellent finishing effect.

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[Procedure amendment]

[Submission date] March 17, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0025

[Correction method] Change

[Correction content]

[0025]

[Table 2]

Claims (2)

[Claims] 1. A cleaning active ingredient and a compound represented by the general formula (I): A silicone oil represented by the formula (wherein the degree of polymerization is n = 3 to 2500), and a general formula (II) [In the formula, x, y, and z each represent an integer of 1 or more, and the degree of polymerization n ₁ (x + y + z) is 5 to 120. ] The shampoo composition characterized by containing the polyoxyethylene hydrogenated castor oil represented by these. 2. The degree of polymerization n of the silicone oil is from 1000 to 2
The shampoo composition according to claim 1, wherein the shampoo composition is 500.