JP5470941B2 - Hair cleaning composition - Google Patents

Description

  The present invention relates to a hair cleanser composition, more specifically, excellent usability, foaming and foam amount at the time of washing, detergency, good conditioning effect on the hair after washing, excellent storage stability, The present invention relates to a creamy hair cleansing composition that is mild to skin and hair.

  Conventionally, as a creamy detergent, those using higher fatty acid alkali salt (soap) as a main washing component have been widely used. When such a detergent composition using soap is used for hair, it is excellent in foaming, but there is a problem that a feeling of squeak is felt at the time of rinsing and after washing, and foaming and cleaning power are remarkably reduced in hard water. In addition, in terms of storage stability, there is a problem that soap is crystallized at a low temperature range or water is removed at a high temperature range. As means for solving such problems, there has been proposed one using an anionic surfactant other than soap as a main cleaning component.

  Patent Document 1 discloses a cream shampoo composition in which an N-acyl amino acid salt, a fatty acid alkylolamide, a cationic polymer, and a water-insoluble powder are combined. Patent Document 2 discloses an N-acyl amino acid salt, a polyamide-modified silicone, Although creamy detergent compositions combining liquid oils are disclosed, these compositions were not sufficiently satisfactory in foaming and the amount of foam during hair washing.

  Patent Document 3 discloses a hair cleansing agent that combines an acylmethyl taurine salt type anionic surfactant, a polyhydric alcohol, a nonionic surfactant, water, an opacifier, and a nitrogen-containing water-soluble polymer. However, even in this composition, foaming and the amount of foam at the time of shampooing were not sufficiently satisfactory.

JP 2000-219614 A JP 2006-257128 A JP 2001-233743 A

  The purpose of the present invention is excellent in usability, foaming and foam amount at the time of shampooing, detergency, good conditioning effect on hair after shampooing, excellent storage stability and mild creamy skin and hair. The object is to provide a hair cleansing composition.

  In order to solve the above-mentioned problems, the present inventors have conducted intensive research. As a result, (a) a specific surfactant, (b) glycerin, (c) a specific fatty acid, (d) water, e) By combining sodium citrate and (f) a cationic polymer in a specific ratio, an intended hair cleansing composition was obtained. That is, the hair cleansing composition of the present invention comprises (a) 10-35% by mass of an acylmethyl taurine salt type anionic surfactant represented by the following formula (I), (b) 40-80% by mass of glycerin, (C) C8-C20 fatty acid 0.5-10 mass%, (d) Sodium citrate 0.1-5 mass%, (e) Cationic polymer 0.1-5 mass%, (f) Water It contains 5 to 20% by mass and is creamy.

(In the formula, R ¹ CO represents an acyl group having 8 to 20 carbon atoms, and M ¹ represents an alkali metal atom, 1/2 alkaline earth metal atom, ammonium, organic ammonium, or a basic amino acid cation group.)

  In this hair cleansing composition, the acylmethyl taurine salt type anionic surfactant may be a powdered product.

  The hair cleanser composition of the present invention is mild to the skin and hair, is excellent in usability, foaming and foam amount at the time of shampooing, detergency, has a good conditioning effect on the hair after shampooing, and has good storage stability. Excellent.

Hereinafter, the present invention will be described in detail.
The hair cleansing composition of the present invention comprises (a) an acylmethyl taurine salt type anionic surfactant represented by the following formula (I), (b) glycerin, (c) a fatty acid having 8 to 20 carbon atoms, (D) Contains water, (e) sodium citrate, (f) a cationic polymer. First, the component (a) will be described.

R ¹ CO in the formula is an acyl group having 8 to 20 carbon atoms, in other words, a linear or branched fatty acid residue having 8 to 20 carbon atoms. Examples of such fatty acids include caprylic acid, capric acid, lauric acid, Saturated fatty acids such as myristic acid, palmitic acid, stearic acid, isostearic acid, unsaturated fatty acids such as palmitooleic acid, oleic acid, elaidic acid, linoleic acid, linolenic acid, and mixtures thereof, coconut oil fatty acid, palm kernel Examples include oil fatty acids, beef tallow fatty acids, and hardened beef tallow fatty acids. Of these, lauric acid, myristic acid, oleic acid, coconut oil fatty acid, palm kernel oil fatty acid, and beef tallow fatty acid are preferable, and lauric acid, oleic acid, coconut oil fatty acid, and palm kernel oil fatty acid are more preferable. When the carbon number of the acyl group is less than 8, irritation to skin and hair becomes strong, and when the carbon number exceeds 20, the foaming power is reduced.

M ¹ in the formula represents an alkali metal atom, 1/2 alkaline earth metal atom, ammonium, organic ammonium or a basic amino acid cation group, for example, potassium atom, sodium atom, 1/2 magnesium atom, 1/2 Examples include a calcium atom, a cationic residue of ammonium, triethanolamine, a cationic residue of arginine, and the like, preferably a potassium atom, a sodium atom, a 1/2 magnesium atom, and a 1/2 calcium atom. Specific examples of the acylmethyl taurine salt type anionic surfactant represented by the formula (I) include coconut oil fatty acid methyl taurine sodium and coconut oil fatty acid methyl taurine magnesium.

  The component (a) used in the present invention is preferably a pulverized product pulverized by a spray drying method or the like. There is no restriction | limiting in particular about the shape and magnitude | size of a powdered material, Powder, granule shape, flake shape, etc. can be taken. When the composition is prepared using the powdered component (a), process management such as shortening the preparation time and moisture adjustment is facilitated, and variations in quality are suppressed. Commercially available products can be used as the powdered product of component (a), and examples thereof include Diapon K-SF powder (manufactured by NOF Corporation) as powdered product of coconut oil fatty acid methyl taurine sodium.

  (A) The compounding quantity of a component is 10-35 mass% with respect to the composition whole quantity, Preferably it is 15-30 mass%. If it is less than 10% by mass, sufficient foaming, foam amount and detergency may not be obtained, and storage stability may be deteriorated. If it exceeds 35% by mass, the creamy composition becomes too hard and the usability is increased. It may get worse. (A) A component may be used independently and may use 2 or more types together.

  The component (b) used in the present invention is glycerin. (B) The compounding quantity of a component is 40-80 mass% with respect to the composition whole quantity, Preferably it is 45-75 mass%, More preferably, it is 50-65 mass%. If the amount is less than 40% by mass, a sufficient conditioning effect may not be obtained or the storage stability may be deteriorated. If the amount exceeds 80% by mass, sufficient foaming or the amount of bubbles may not be obtained.

  Component (c) used in the present invention is a fatty acid having 8 to 20 carbon atoms such as caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid and other saturated fatty acids, palmitoolein Examples thereof include unsaturated fatty acids such as acid, oleic acid, elaidic acid, linoleic acid, and linolenic acid, and mixtures thereof such as coconut oil fatty acid, palm kernel oil fatty acid, beef tallow fatty acid, and hardened tallow fatty acid. In the present invention, the component (c) can be used by appropriately selecting one kind or two or more kinds. Among these, one or two or more selected from lauric acid, myristic acid, and palmitic acid are preferable because more excellent foaming and foaming amount can be obtained.

  (C) The compounding quantity of a component is 0.5-10 mass% with respect to the composition whole quantity, Preferably it is 0.5-8 mass%, More preferably, it is 1-6 mass%. When the amount is less than 0.5% by mass, a sufficient amount of foam may not be obtained. When the amount exceeds 10% by mass, the creamy composition becomes too hard and the usability is deteriorated. It may not be obtained. In addition, the blending ratio (c) / (a) of the component (c) to the component (a) is preferably ½ or less in terms of mass ratio from the viewpoint of usability, foaming and foam amount.

  The component (d) used in the present invention is sodium citrate. (D) The compounding quantity of a component is 0.1-5 mass% in a composition whole quantity, Preferably it is 0.5-4 mass%, More preferably, it is 1-3.5 mass%. If the amount is less than 0.1% by mass, sufficient foaming or the amount of foam may not be obtained. If the amount exceeds 5% by mass, the creamy composition becomes too hard and the usability is deteriorated, or the storage stability is poor. Sometimes it becomes.

  The component (e) used in the present invention is a cationic polymer and is not particularly limited as long as it is commonly used in cosmetics and can impart a conditioning effect to hair. For example, a poly (dimethyldiallylammonium chloride) derivative, Quaternary nitrogen-containing polyvinylpyrrolidone, quaternary nitrogen-containing cellulose ether derivative, polyethyleneimine, water-soluble cationic polymer synthesized from tetraethylpentamine and epichlorohydrin, quaternary nitrogen-containing poly (trialkylaminoethyl methacrylate) derivative, And quaternary nitrogen-containing guar gum derivatives. In the present invention, the component (e) can be used by appropriately selecting one kind or two or more kinds. Of these, one or two or more selected from a poly (dimethyldiallylammonium chloride) derivative and a quaternary nitrogen-containing cellulose ether derivative are preferable because a more excellent conditioning effect can be obtained.

  (E) The compounding quantity of a component is 0.1-5 mass% in a composition whole quantity, Preferably it is 0.1-3 mass%, More preferably, it is 0.5-2 mass%. If the amount is less than 0.1% by mass, the conditioning effect is not sufficient. If the amount exceeds 5% by mass, the creamy composition may become unusable, such as stringing, or sufficient foam amount and detergency cannot be obtained. In some cases.

  The component (f) used in the present invention is water. (F) The compounding quantity of a component is 5-20 mass% in a composition whole quantity, Preferably it is 8-18 mass%. If it is less than 5% by mass, the blended components may not be dissolved uniformly, and if it exceeds 20% by mass, the storage stability may be deteriorated.

  In the hair cleansing composition of the present invention, the total content of (a) + (b) + (c) + (d) + (e) + (f) is particularly limited as long as it is 100% by mass or less. However, in order to sufficiently obtain the effects of the present invention, the content is preferably 85% by mass or more, more preferably 90% by mass or more.

  In the hair cleansing composition of the present invention, components commonly used in cosmetics can be appropriately blended as long as the performance of the present invention is not impaired.

  The hair cleansing composition of the present invention can be prepared by a known technique. For example, each component of (a) to (f) can be obtained by heating as necessary, dissolving or dispersing until uniform, and then cooling with slow stirring.

  EXAMPLES Hereinafter, although an Example demonstrates this invention further in detail, this invention is not restrict | limited to the following Example.

Examples 1-5 and Comparative Examples 1-7
A cream-like hair cleaning composition (hereinafter also referred to as a hair cleaning agent) was prepared with the components and blending ratios shown in Table 1. Specifically, for example, in the composition of Example 1, first, (b) glycerin, (d) sodium citrate and (f) water components were uniformly dissolved at 80 ° C., then (a) palm Each component of oil fatty acid methyl taurine sodium powder, (c) myristic acid and (e) poly (dimethyldiallylammonium chloride) is added and uniformly dissolved at 80 ° C. Next, it was prepared by cooling to 25 ° C. with slow stirring. Other examples and comparative examples were also prepared according to this method. In Comparative Example 3, 1,3-butylene glycol was used in place of glycerin as component (b), and in Example 5, sodium malate was used in place of sodium citrate as component (d).

(Evaluation item)
About the prepared creamy hair cleanser, (1) Usability (ease of taking out from the tube), (2) Foaming, (3) Foam amount, (4) Detergency, (5) Conditioning effect, (6) Storage The stability was evaluated by the following method.

(Evaluation method)
(1) Usability (easy removal from the tube)
Using 20 women (22 to 40 years old) as panelists, the usability of the creamy hair cleaning material (ease of taking out from the tube container) was determined according to the following criteria. A tube container made of polyethylene having a trunk diameter of 30 mm, a shoulder under 70 mm, and a mouth inner diameter of 5 mm was used, and 30 g of creamy hair washing material was filled for evaluation.
2 points: When it is easy to put out with moderate hardness and is very easy to use.
1 point: Slightly hard or slightly soft, but feels no problem in use.
0 points: When it is apparently hard or soft and difficult to use.
The total score of 20 people was calculated and evaluated as follows.
A: Total score of 35 points or more (detergent composition that is easy to remove from the tube container and has very good usability)
○: Total score of 30 points or more and less than 34 points (cleaner composition that is easy to remove from the tube container and has good usability)
Δ: Total score of 20 points or more and less than 29 points (a cleaning composition that is slightly harder or slightly softer but does not hinder the removal from the tube container)
X: Total score of less than 20 (a cleaning composition that is difficult to remove from the tube container and has poor usability)
However, when even one person gave 0 points, it was evaluated as x.

(2) Foaming 20 women (22 to 40 years old) were panelists and had their hair washed with a creamy hair washing material, and the foaming was judged according to the following criteria.
2 points: When foaming feels very good.
1 point: When foaming feels slightly good.
0 points: When foaming is felt bad.
The total score of 20 people was calculated and evaluated as follows.
A: Total score of 35 points or more (detergent composition with very good foaming)
○: Total score of 30 points or more and less than 34 points (detergent composition with good foaming)
Δ: Total score of 20 points or more and less than 29 points (detergent composition with slightly good foaming)
X: Total score is less than 20 (detergent composition with poor foaming)

(3) Foam amount 20 women (22 to 40 years old) were panelists and had their hair washed with a creamy hair washing material, and the amount of foam was determined according to the following criteria.
2 points: When it is felt that the amount of foam is sufficiently satisfactory.
1 point: When the amount of foam feels normal.
0 point: When the amount of foam is clearly felt to be small.
The total score of 20 people was calculated and evaluated as follows.
A: Total score of 35 points or more (detergent composition with a large amount of foam)
○: Total score of 30 points or more and less than 34 points (detergent composition with a satisfactory foam amount)
Δ: Total score of 20 points or more and less than 29 points (detergent composition having no problem with the amount of foam)
X: Total score is less than 20 (cleaner composition with a small amount of foam)

(4) Detergency 20 females (22 to 40 years old) were panelists and had their hair washed with a creamy hair washing material, and the detergency was judged according to the following criteria.
2 points: When you feel that your hair is clean and refreshing, and that your cleaning power is high.
1 point: When it feels that it is normal detergency.
0 point: When it is apparent that the cleaning power is low.
The total score of 20 people was calculated and evaluated as follows.
A: Total score of 35 points or more (detergent composition with excellent detergency)
○: Total score of 30 points or more and less than 34 points (detergent composition with high detergency)
Δ: Total score of 20 points or more and less than 29 points (detergent composition having ordinary cleaning power)
X: Total score is less than 20 (detergent composition with low detergency)

(5) Conditioning effect 20 women (22 to 40 years old) as panelists were asked to wash their hair with a creamy hair washing material, and the conditioning effect after drying was judged according to the following criteria.
2 points: When the conditioning effect is felt excellent.
1 point: When it feels that the conditioning effect is somewhat obtained.
0 point: When the conditioning effect is not obtained.
The total score of 20 people was calculated and evaluated as follows.
A: Total score of 35 or more (detergent composition with excellent conditioning effect)
○: Total score of 30 points or more and less than 34 points (detergent composition with excellent conditioning effect)
(Triangle | delta): 20 points or more and less than 29 points | pieces (detergent composition from which some conditioning effects are acquired)
×: Total score of less than 20 (cleaning agent composition that does not provide conditioning effect)

(6) Storage stability Each composition is sealed in a transparent glass container and stored at 5 ° C., 25 ° C. and 45 ° C. for 1 month, its appearance is observed, and changes such as water separation and crystallization are visually observed. The evaluation was made in the following three stages.
○: Good stability (no change in appearance such as water separation or crystallization under any temperature condition)
Δ: Slightly inferior (slight water separation or crystallization is observed at any temperature condition)
×: Stability failure (appearance changes such as obvious water separation and crystallization are remarkable under any temperature condition)

  In each of the above evaluations, ◎ and ○ are acceptable and Δ and × are unacceptable. The results are shown in Table 1.

  From the evaluation results of Examples 1 to 5, the creamy hair cleaning material of the present invention is easy to take out from the tube container, that is, has good usability, is excellent in foaming, foam amount and washing power at the time of washing, and hair after washing. The conditioning effect was excellent, and the storage stability was also excellent.

  On the other hand, sufficient performance was not obtained with the creamy hair cleaning materials of Comparative Examples 1-7. Specifically, in Comparative Example 1, since the content of the component (a) is less than the range of the present invention, usability, foaming, foam amount, detergency, storage stability are poor, and the conditioning effect is not sufficient. . In Comparative Example 2, since the content of the component (a) is larger than the range of the present invention and the content of the component (b) is smaller than the range of the present invention, the usability and conditioning effect are poor, and foaming and storage stability are also achieved. It was not enough. In Comparative Example 3, 1,3-butylene glycol is used in place of the component (b) defined in the present invention, so the usability, foaming, and conditioning effects are poor, and the amount of foam, detergency, and storage stability are sufficient. It wasn't. In Comparative Example 4, since the content of the component (c) was larger than the range of the present invention, the usability, foaming, the amount of foam, and the detergency were poor, and the conditioning effect and storage stability were not sufficient. In Comparative Example 5, since sodium malate was used instead of the component (d), foaming, foam amount and detergency were not sufficient. In Comparative Example 6, since the cationic polymer of component (e) was not blended, the conditioning effect was poor. In Comparative Example 7, since the content of the component (f) was larger than the range of the present invention, usability and storage stability were poor.

  The hair cleanser composition of the present invention is mild to the skin and hair, is excellent in usability, foaming and foam amount at the time of shampooing, detergency, has a good conditioning effect on the hair after shampooing, and has good storage stability. Since it is excellent, it can be suitably used as a cleaning agent for hair.

Claims (2)

(A) 10-35% by mass of an acylmethyl taurine salt type anionic surfactant represented by the formula (I), (b) 40-80% by mass of glycerin, (c) a fatty acid having 8-20 carbon atoms, 0.5 10% by mass, (d) 0.1 to 5% by mass of sodium citrate, (e) 0.1 to 5% by mass of cationic polymer, (f) 5 to 20% by mass of water, and is creamy A hair cleansing composition characterized by that.

(In the formula, R ¹ CO represents an acyl group having 8 to 20 carbon atoms, and M ¹ represents an alkali metal atom, 1/2 alkaline earth metal atom, ammonium, organic ammonium, or a basic amino acid cation group.)   The hair cleansing composition according to claim 1, wherein the acylmethyl taurine salt type anionic surfactant is a powdered product.