JP2000072630A - Shampoo composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a shampoo composition having an excellent use property, excellent foaming property in washing and giving a sufficient washing effect and a smooth feeling without stiff feeling by including a specific amino acid- based amphoteric surfactant and a tetradecene sulfonate. SOLUTION: This shampoo composition contains (A) a compound of the formula (R is an 8-22C alkyl; X is an acid) e.g. N-[3-alkyl(12,14)oxy-2- hydroxypropyl]-L-arginine hydrochloride} and (B) a tetradecene sulfonate. Preferably, (C) a polyoxyethylene alkyl ether sulfate (e.g. polyoxyethylene lauryl ether sodium sulfate) and (D) an amphoteric surfactant (e.g. lauryldimethylaminobetaine acetate) are further contained in the composition. Preferably, 0.01-5 wt.% of the component A, >=1 wt.% of the component B, >=1 wt.% of the component C and 1-10 wt.% of the component D are contained in the composition and a total amount of (the component B + the component C) is preferably 5-15 wt.%.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

FIELD OF THE INVENTION The present invention relates to shampoo compositions and, more particularly, to good usability, foaming during cleaning,
The present invention relates to a shampoo composition having a good foam feel, a sufficient washing effect, and a shampoo composition which does not squeeze hair during rinsing and gives a smooth feel without stiffness even during continuous use.

[0002]

2. Description of the Related Art Conventionally, shampoos satisfy the required quality by selecting various surfactants in consideration of foaming properties and detergency, or by combining them according to the purpose and use of the shampoo. Has been done. In shampoos, various anionic surfactants are often used as a main component of the detergent, and among them, α
-Olefin sulfonates are widely used because of their high foaming power and hard water resistance, low irritation and low cost.

[0003]

However, this α
-Although the olefin sulfonate has a foaming power, it has a drawback in use feeling such as squeezing of hair upon rinsing. On the other hand, it is known that a cationic polymer is used in combination for the purpose of alleviating the feeling of creaking, and it is well adsorbed to the hair and reduces the feeling of creaking. However, on the contrary, when used continuously, the shampoo has a property of accumulating on the hair and feels stiff, such that excellent quality as a shampoo has not been obtained. Therefore, development of a shampoo composition which is more improved in these respects has been desired.

[0004]

Under these circumstances, the present inventors have conducted intensive studies to solve the above-mentioned problems, and as a result, the present inventors have found that a specific amino acid-based amphoteric surfactant and a kind of α-olefin sulfonate are available. By combining with tetradecene sulfonate, good foaming and a sufficient cleaning effect can be obtained during washing, and a good feeling (smoothness, lack of squeaky feeling) of hair can be obtained even when rinsing,
In addition, it has been found that no accumulation on hair is observed even after continuous use, and smooth and good usability without stiffness is obtained, and the present invention has been completed based on these findings. Was.

That is, the present invention relates to [1] The following component (A)
And (B), (A) a compound of the general formula (1)

Embedded image (R represents an alkyl group having 8 to 22 carbon atoms, and X represents an acid.) (B) A shampoo composition containing a tetradecene sulfonate, and [2] a component (C).
[1] The shampoo composition according to [1], further comprising a polyoxyethylene alkyl ether sulfate, [3] further comprising an amphoteric surfactant as the component (D). The shampoo composition according to [1] or [2], wherein [4] the following components (A) to
(D), (A) Compound of general formula (1) 0.01 to 5% by weight

Embedded image (R represents an alkyl group having 8 to 22 carbon atoms, and X represents an acid.) (B) Tetradecene sulfonate 1% by weight or more (C) Polyoxyethylene alkyl ether sulfate 1
% By weight or more (D) It contains 1 to 10% by weight of an amphoteric surfactant, and the blending weight of the components (B) and (C) Ｃ (B) +
(C) A shampoo composition wherein｝ is 5 to 15% by weight of the total composition, and [5] the shampoo composition according to any one of [1] to [4], wherein the pH is in the range of 4.0 to 5.5. It is a shampoo composition as described.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The compound of the component (A) used in the present invention has the general formula (1)

Embedded image (R represents an alkyl group having 8 to 22 carbon atoms, and X represents an acid.)
Is a cationic amino acid-based amphoteric surfactant having a structure of L-arginine which is a kind of amino acid, and can be used in place of various cationic surfactants widely used as a rinse base. . In the present invention, the effect of reducing the squeaky feeling of the hair upon rinsing, which is a disadvantage of the tetradecene sulfonate, and imparting a smooth feel to the hair is exhibited.

The compound of the component (A) used in the present invention is represented by the general formula (1), and particularly preferably has 12 to 14 carbon atoms in the alkyl group. The acid to be reacted is not particularly limited as long as it forms a salt with the compound of component (A) and can be stably present, but hydrochloric acid is preferred. Among the compounds of the component (A), a preferred specific example is N-, wherein the alkyl group has 12 or 14 carbon atoms.
[3-alkyl (12,14) oxy-2-hydroxypropyl] -L-arginine hydrochloride can be mentioned. This compound is commercially available as Amisafe LMA-60 (manufactured by Ajinomoto Co.) and can be used.

In the present invention, the amount of the component (A) is not particularly limited, but is preferably 0.01 to 5% by weight (hereinafter, simply referred to as% by weight) of the whole composition, and suppresses the feeling of creaking of the hair. 0.1% to 3% for imparting smoothness to hair
Is more preferred.

The tetradecenesulfonic acid salt of the component (B) used in the present invention is a general-purpose anionic surfactant in detergents, and is one of the important bases for shampoos. It is a component necessary for forming a sufficient foam and obtaining a high cleaning effect of removing dirt on hair and skin. Examples of the counter base of the component (B) include sodium, potassium, monoethanolamine, diethanolamine, triethanolamine, ammonium, arginine, and the like. In the present invention, a sodium salt is particularly preferable.

In the present invention, the effect of the present invention can be enhanced by blending a polyoxyethylene alkyl ether sulfate as the component (C). The polyoxyethylene alkyl ether sulfate of the component (C) used in the present invention is also one of the general-purpose anionic surfactants used as a shampoo base, and has excellent detergency. In the present invention, by further blending the component (C), the fluidity in a low temperature region is improved as compared with a system containing only the tetradecene sulfonate of the component (B) as an anionic detergent, and the usability is further improved. A good shampoo composition can be obtained. Examples of the counter base of the component (C) include sodium, potassium, magnesium, monoethanolamine, diethanolamine, triethanolamine, ammonium, arginine and the like. In the present invention, sodium salt, triethanolamine salt and ammonium salt are exemplified. Particularly preferred. Further, the number of moles of ethylene oxide to be addition-polymerized may be 2 moles or more.
From the viewpoint of foaming power, 2 to 7 mol is preferable.

Specific examples of the component (C) include sodium polyoxyethylene lauryl ether sulfate, magnesium polyoxyethylene lauryl ether sulfate, triethanolamine polyoxyethylene lauryl ether sulfate, diethanolamine polyoxyethylene lauryl ether sulfate, and polyoxyethylene. Examples include lauryl ether monoethanolamine sulfate, polyoxyethylene lauryl ether ammonium sulfate, polyoxyethylene myristyl ether sodium sulfate, polyoxyethylene myristyl ether triethanolamine sulfate, and polyoxyethylene myristyl ether ammonium sulfate. Sodium oxyethylene lauryl ether sulfate, polyoxyethylene lauryl ether sulfate trie Noruamin, polyoxyethylene lauryl ether sulfate is particularly preferred.

In the present invention, the blending amounts of the tetradecene sulfonate (B) and the polyoxyethylene alkyl ether sulfate (C) are not particularly limited.
When the component (B) and the component (C) are contained in an amount of 1% or more, a shampoo composition having good flowability in a low temperature range and good usability, and having a foaming power can be obtained. The total amount of component (C) and component (C) is preferably 5 to 1 in the total composition.
When the content is in the range of 5%, more preferably 7 to 12%, a better cleaning effect and usability can be obtained.

In the present invention, by further blending an amphoteric surfactant as the component (D), the feeling of foam such as foam smoothness and creamy feeling during washing can be improved, and the effect of the present invention can be further enhanced. it can. The amphoteric surfactant of the component (D) used in the present invention may be an anionic surfactant such as the tetradecenesulfonic acid salt of the component (B) or (C).
Like the component polyoxyethylene alkyl ether sulfate, it is one of the important bases of shampoo and is an effective component for improving the foam increasing property.In the present invention, in addition to the foam during washing, Smoothness and creamy feeling,
An effect of synergistically improving the feel of the foam is provided.

In the present invention, the amphoteric surfactant of the component (D) is not particularly limited as long as it is an amphoteric surfactant usually used in shampoos and the like. However, a betaine acetate type amphoteric surfactant or an imidazoline type amphoteric surfactant is used. Activators are preferred. Specifically, as the betaine acetate surfactant,
Betaine octyldimethylaminoacetate, betaine lauryldimethylaminoacetate, betaine coconut oil alkyldimethylaminoacetate, betaine myristyldimethylaminoacetate, betaine cetyldimethylaminoacetate, betaine coconut fatty acid amidopropyldimethylaminoacetic acid betaine, lauric amidepropyldimethylaminoacetic acid betaine , Lauryl dihydroxyethyl amino acetate betaine, cetyl dihydroxyethyl amino acetate betaine, and the like. Examples of the imidazoline surfactant include N-coconut fatty acid acyl-N-carboxymethyl-N-hydroxyethylethylenediamine sodium and N-coconut. Oil fatty acid acyl-N-carboxymethoxyethyl-N-carboxymethylethylenediamine disodium and the like. Of these, lauryl dimethylamino acetate betaine, coconut oil alkyldimethylaminoacetate betaine, coconut oil fatty acid amidopropyldimethylaminoacetate betaine, laurate amidopropyldimethylaminoacetate betaine, N-
Palm oil fatty acid acyl-N-carboxymethoxyethyl-
N-carboxymethylethylenediamine disodium is particularly preferred.

In the present invention, the compounding amount of the amphoteric surfactant (D) is not particularly limited, but a more sufficient amount of foam, a good foam feeling (smoothness, creamy feeling) and a more appropriate shampoo. In order to obtain viscosity and good usability, preferably 1 to 10% of the total composition, more preferably 2 to 10%.
~ 7%.

In the shampoo composition of the present invention, when the pH of the system is in the range of 4.0 to 5.5, the shampoo exhibits more appropriate viscosity and good detergency, and is more suitable for a product system. Usability (easily picked up when used and easy to apply to hair) and cleaning effect can be obtained.

The pH adjuster in the shampoo composition of the present invention is not particularly limited as long as it is generally used for shampoos and the like, but it is not limited to inorganic acids such as hydrochloric acid and phosphoric acid, and citric acid, lactic acid and malic acid. And organic acids such as tartaric acid and the like, and pH buffers in which these are combined with their salts. Of these, citric acid is particularly preferred.

The shampoo composition of the present invention may further comprise, in addition to the above components, an ionic surfactant other than the above in a quantitative and qualitative range that does not impair the effects of the present invention depending on the purpose; Nonionic surfactants such as alkylene glycol fatty acid esters and polyoxyalkylene alkyl ethers; viscosity or feel improvers such as water-soluble polymers, water-soluble polysaccharides and cationic polymers; pearl agents such as alkylene glycol fatty acid esters; Aqueous components such as alcohols; oily components such as lanolin, hydrocarbons, fats, silicone oils, and high molecular silicones; powders; ultraviolet absorbers; antidandruff agents; antioxidants; preservatives;
Other components commonly used in shampoos, such as electrolytes, coloring agents, fragrances, and cosmetic components for hair care, can be added.

The shampoo composition of the present invention comprises a specific amino acid-based amphoteric surfactant, a tetradecene sulfonate, and, if necessary, a polyoxyethylene alkyl ether sulfate and an amphoteric surfactant. It can be manufactured by stirring and mixing, adjusting the pH, performing a heating and cooling treatment in some cases, and optionally blending the above optional components as needed. In addition, the shampoo composition of the present invention can be carried out in various forms, such as low-viscosity to high-viscosity liquids, emulsions, creams, and gels, depending on the combination with other components and the mechanism of the container. .

[0020]

The present invention will be further described with reference to the following examples. These do not limit the present invention at all.

Examples 1 to 16 and Comparative Examples 1 to 3 Shampoo (Liquid) Liquid shampoos were prepared according to the compositions shown in Tables 1 and 2 and by the following production method. The cleaning effect, the feel of the hair during rinsing, the difference in the feel of the hair after continuous use, and the usability (flowability at low temperatures) were evaluated and evaluated. The results are shown in Tables 1 and 2.

[0022]

[Table 1]

[0023]

[Table 2]

(Production method) A. The components (1) to (11) are uniformly heated and mixed at 70 ° C., and then cooled. The amount of citric acid was adjusted so that the pH became 5.0. B. A was filled in a container to obtain a shampoo.

(Evaluation Method) Each of the samples of Examples 1 to 16 and Comparative Examples 1 to 3 was distributed and used by a professional panel of 10 persons, and foaming during washing and feeling of foam (smoothness) were performed for each. , Creamy feeling), washing effect, hair feel when rinsing (smoothness, no squeaky feeling), continuous use (20 times)
For each evaluation item of touch (smoothness, lack of stiffness) and usability (flowability at low temperature (5 ° C.)) of the hair after
They were evaluated on a 7-point scale using the following (a) absolute evaluation criteria. Thereafter, the average value of the scores of each sample was determined using the (b) four-step criterion. Evaluation items <1> Foaming during cleaning <2> Feeling of foam during cleaning (smoothness, creamy feeling) <3> Cleaning effect <4> Feeling during rinsing (smoothness, lack of squeaky feeling) <5> Continuous Feeling of hair after use (smoothness, lack of stiffness), <6> Usability (fluidity at 5 ° C.) (A) Absolute evaluation criteria (Score) (Evaluation) 6: Very good 5: Good 4 : Moderately good 3: Normal 2: Moderately bad 1: Poor 0: Very poor (b) Four-level judgment criteria (average score) (Judgment) Those exceeding 5.0: ◎ Exceeding 3.0 and 5 Up to 3.0: ○ Exceeding 1.0 and up to 3.0: △ 1.0 or less: ×

As is clear from the results of Tables 1 and 2,
The shampoo composition of the present invention has foaming during washing, foam feeling (smoothness, creamy feeling),
Excellent in cleaning effect, rinsing feel (smoothness, lack of squeaky feeling), hair feel after continuous use (smoothness, stiffness), and usability (fluidity at 5 ° C.) It was proved to be effective.

Examples 17 to 21 Shampoo (liquid)
(Example 19 is the same as Example 15.) The pH value of each sample was adjusted by adjusting the amount of citric acid in Example 15 in Table 2 and the pH was changed.
Bubbling during cleaning of the sample at H value, cleaning effect, low temperature (5
(° C.) and room temperature (25 ° C.). Evaluation was performed in the same manner as in Examples 1 to 16,
The results are shown in Table 3.

[0028]

[Table 3]

As is evident from the results in Table 3, those having a pH in the range of 4.0 to 5.5 were foamed during washing,
The cleaning effect and the usability (suitability of viscosity) at low temperature (5 ° C.) and normal temperature (25 ° C.) were more excellent.

[0030]

As described in detail above, the shampoo composition of the present invention has good foaming during cleaning, good foam feeling, a sufficient cleaning effect, and does not squeeze hair during rinsing.
Even when used continuously, it shows an excellent effect of giving a smooth feel without stiffness, has good usability, and has excellent quality as a shampoo composition.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4C083 AC302 AC392 AC642 AC712 AC741 AC742 AC781 AC782 AC791 AC792 AD132 BB07 CC01 CC38 DD23 DD31 DD41 EE06 4H003 AB06 AB11 AB14 AB31 AC13 AD04 BA12 BA15 DA02 EB08 EB09 EB42 ED02 FA18 FA21 FA21

Claims (5)

[Claims] 1. The following components (A) and (B): (A) a compound of the general formula (1) (R represents an alkyl group having 8 to 22 carbon atoms, and X represents an acid.) (B) A shampoo composition containing a tetradecene sulfonate. 2. The shampoo composition according to claim 1, further comprising a polyoxyethylene alkyl ether sulfate as the component (C). 3. The shampoo composition according to claim 1, further comprising an amphoteric surfactant as the component (D). 4. The following components (A) to (D): (A) 0.01 to 5% by weight of a compound of the general formula (1) (R represents an alkyl group having 8 to 22 carbon atoms, and X represents an acid.) (B) Tetradecene sulfonate 1% by weight or more (C) Polyoxyethylene alkyl ether sulfate 1
% By weight or more (D) It contains 1 to 10% by weight of an amphoteric surfactant, and the blending weight of the components (B) and (C) Ｃ (B) +
(C) A shampoo composition wherein｝ is 5 to 15% by weight of the whole composition. 5. The shampoo composition according to claim 1, wherein the pH is in the range of 4.0 to 5.5.