JP6394358B2 - Shampoo composition - Google Patents

Description

  The present invention relates to a shampoo composition.

  In recent years, hair is often damaged by chemical treatment such as perm, hair color, bleaching, and exposure to sunlight due to an increase in the amount of ultraviolet rays, and often becomes damaged hair. Healthy hair is generally in a state of being hydrophobized. However, in damaged hair, the vicinity of the root is hydrophobic, but the vicinity of the end of the hair loses hydrophobicity and the hair is thin. When the hair is washed in such a state, the hairs are more likely to be entangled with each other than normal hair, and the possibility of finger splitting and split ends and split hairs is high. In addition, after drying, a uniform moist feeling from the root to the tip of the hair could not be obtained, and after shampooing, there were cases where conditioning effects such as fingering when using a conditioner were not sufficient.

In order to solve such a problem, for example, Patent Document 1 describes a hair cleansing material containing sodium lauroyl N-methyltaurine, polyethylene glycol, and glycerin. However, this hair cleanser moistened after use, but the finger-wiping property during hair washing and rinsing was insufficient.
Patent Document 2 describes a shampoo containing N-lauroylmethyl taurine taurine sodium. However, although this shampoo was excellent in fingering property at the time of rinsing, a uniform moist feeling up to the hair end after drying was not obtained.
Patent Document 3 describes a hair cleanser containing p-toluenesulfonic acid, benzyl alcohol, polyoxyethylene (2) sodium lauryl ether sulfate, and cationized hydroxyethyl cellulose. However, this hair cleanser is excellent in finger washability during shampooing and rinsing, and although undulation of the hair after drying is suppressed, a uniform moist feeling up to the tip of the hair is not obtained, and a conditioner is used after shampooing Conditioning effects such as fingering were not sufficient.

JP 2001-233743 A JP 2000-109888 A JP 2006-282616 A

  An object of the present invention is to provide a shampoo composition that is good in both fingering property at the time of rinsing and fingering property after use of a conditioner.

  As a result of intensive studies to solve the above-mentioned problems, the inventors of the present invention each contain a specific amount of a trimethylglycine derivative of acylmethyltaurine, an amphoteric surfactant, a cationized polymer, and water, and the trimethylglycine derivative and The inventors have found that the above problems can be solved by setting the mass ratio of the amphoteric surfactant to a specific range, and have completed the present invention.

That is, the present invention comprises (a) component: 3 to 30% by mass of a trimethylglycine derivative of acylmethyltaurine represented by the formula (1),
(B) component: 3-30 mass% of amphoteric surfactant,
(C) component: 0.03 to 3% by mass of a cationized polymer, and (d) component: 37 to 94% by mass of water,
In the component (a), the content of the acylmethyl taurine derivative in which RCO in the formula (1) is an acyl group having 14 carbon atoms is 26% by mass or more,
The mass ratio ((a) / (b)) of component (a) to component (b) is 0.2-3.
Is a shampoo composition.

（式中のＲＣＯは炭素数８〜２２のアシル基を示し、Ｘは式（２）で表されるカチオンを示す。）

(RCO in the formula represents an acyl group having 8 to 22 carbon atoms, and X represents a cation represented by formula (2).)

（式中のＭはアルカリ金属、アルカノールアンモニウムまたは塩基性アミノ酸を示す。）

(M in the formula represents an alkali metal, an alkanol ammonium or a basic amino acid.)

  According to the shampoo composition of the present invention, it is possible to improve both the fingering property at the time of rinsing and the fingering property after use of the conditioner.

Embodiments of the present invention will be described below.
The shampoo composition of the present invention comprises (a) component: a trimethylglycine derivative of acylmethyltaurine represented by formula (1), (b) component: amphoteric surfactant, (c) component: cationized polymer, and ( d) Component: Contains water.
Each component will be described sequentially.

[Component (a): Trimethylglycine derivative of acylmethyltaurine]
The component (a) in the present invention is a methylglycine derivative of acylmethyltaurine represented by the formula (1).
RCO in Formula (1) represents an acyl group having 8 to 22 carbon atoms, and is a saturated or unsaturated fatty acid residue having 8 to 22 carbon atoms. For example, capryloyl group (caprylic acid residue), caprynoyl group (capric acid residue), lauryl group (lauric acid residue), myristoyl group (myristic acid residue), palmitoyl group (palmitic acid residue), palmitolenoyl Acid (palmitoleic acid residue), stearoyl group (stearic acid residue), oleoyl group (oleic acid residue), linoleoyl group (linoleic acid residue), arachidinoyl group (arachidic acid residue), behenoyl group (behenic acid) Residue) and the like.
Moreover, an acyl group derived from a mixed fatty acid can be used as the acyl group having 8 to 22 carbon atoms, and examples of the mixed fatty acid include coconut oil fatty acid and palm kernel oil fatty acid.

X in the formula (1) represents a cation represented by the formula (2).
The cation represented by the formula (2) is a trimethylglycine salt. M in the formula (2) represents an alkali metal, alkanolamine or basic amino acid, and examples thereof include sodium, potassium, monoethanolamine, diethanolamine, triethanolamine, arginine, and lysine hydrochloride. M is preferably sodium.

In the component (a), the content of the acylmethyltaurine derivative in which RCO in the formula (1) is a C14 acyl group is usually 26% by mass or more, and preferably 30% by mass or more. If the content of the acylmethyl taurine derivative is too low, the fingering property at the time of rinsing is deteriorated, and the fingering property after use of the conditioner may be deteriorated.
In addition, the upper limit of the content rate of the said acylmethyl taurine derivative is 80 mass% normally, Preferably it is 70 mass%.

  The trimethylglycine derivative of acylmethyltaurine represented by the formula (1) can be produced by a known method. For example, an acylmethyl taurine produced by a known method is charged with a trimethylglycine salt as a target counter ion, for example, trimethylglycine sodium, in an amount of 1.0 to 1.2 times the mol number of acylmethyl taurine. It can manufacture by stirring at the temperature of 50-80 degreeC.

  In the shampoo composition of the present invention, the content of the component (a) is usually 3 to 30% by mass, preferably 5 to 20% by mass. When the content of the component (a) is too small, foaming may be deteriorated, and when the content of the component (a) is too large, the fingering property at the time of rinsing may be deteriorated.

[(B) component: amphoteric surfactant]
The component (b) in the present invention is an amphoteric surfactant and has the effect of improving foaming by improving the foam quality when used in combination with the component (a).
Amphoteric surfactants include alkylbetaines, alkylamidobetaines, alkylhydroxysulfobetaines, alkylamidohydroxysulfobetaines, alkylcarboxymethylhydroxyethylimidazolinium betaines, alkylamidohydroxyethyl amino acid type amphoteric surfactants, alkyliminos. Examples thereof include diacetate.
The number of carbon atoms of the alkyl group or acyl group is preferably 10-18, particularly preferably 12-14, from the viewpoint of detergency and foaming power. Further, as the acyl group, an acyl group derived from a mixed fatty acid such as coconut oil fatty acid can be used.

  Specific examples of amphoteric surfactants include lauryl betaine, coconut oil fatty acid amidopropyl betaine, coconut oil fatty acid amidopropyldimethylaminoacetic acid betaine (for example, Nissan Anon (registered trademark) BDF (registered trademark) -R, NOF Corporation) And coconut oil alkyldimethylaminoacetic acid betaine (for example, Nissan Anon (registered trademark) BF (registered trademark), manufactured by NOF Corporation), palm kernel oil fatty acid amidopropyl betaine, and lauryl hydroxysulfobetaine.

  In the shampoo composition of the present invention, the content of the component (b) is usually 3 to 30% by mass, preferably 5 to 20% by mass. When the content of the component (b) is too small, foaming and foam quality may be deteriorated, and when the content of the component (b) is too large, the fingering property at the time of rinsing may be deteriorated. (B) A component may be used individually by 1 type or may use 2 or more types together.

[(C) component: cationized polymer]
The component (c) in the present invention is a cationized polymer, and for example, a polymer compound having a quaternary nitrogen-containing group exhibiting a cationic property is used. As the cationized polymer, those commonly used in cosmetics and capable of imparting a conditioning effect to hair can be used, and examples thereof include cationized cellulose, cationized guar gum, and acrylic cationized polymer.
Specific examples of the cationized cellulose include polymer JR-125, polymer JR-400, polymer JR-30M, polymer LR-400 (all manufactured by Union Carbide), gelner QH-300 (manufactured by Daicel Chemical Industries, Ltd.), and the like. And quaternary nitrogen-containing cellulose ether derivatives represented by
Specific examples of the cationized guar gum include quaternary nitrogen-containing guar gum represented by Katchinal CG-100, Katchinal CG-100S (all manufactured by Toho Chemical Co., Ltd.), and Cosmedia C-261 (produced by Henkel). Derivatives.
Specific examples of the acrylic cationized polymer include chlorides represented by Marcoat 100, Marcoat 280, Marcoat 550 (all manufactured by Merck), Cellcoat H-100, and Cellcoat L-200 (all manufactured by National Starch). A dimethyl diallyl ammonium derivative is mentioned.
Among these, cationized cellulose which is a quaternary nitrogen-containing cellulose ether derivative is preferable.
In addition, (c) component may be used individually by 1 type, or may use 2 or more types together.

  In the shampoo composition of the present invention, the content of the component (c) is usually 0.03 to 3% by mass, preferably 0.05 to 2% by mass, particularly preferably 0.1 to 1.5% by mass. is there. When the content of the component (c) is too small, the fingering property at the time of washing and rinsing may be deteriorated, and when the content of the component (c) is too large, the moist feeling of the hair after washing and drying is poor. There is a risk.

[(D) Water]
The component (d) in the present invention is water, and its content is usually 37 to 94% by mass, preferably 60 to 90% by mass.

  In the shampoo composition of the present invention, the mass ratio ((a) / (b)) between the component (a) and the component (b) is usually 0.2 to 3, preferably 0.5 to 2.5, Especially preferably, it is 0.8-2. If the mass ratio ((a) / (b)) is too small or too large, the finger penetration during rinsing may deteriorate, and the moist feeling of the hair after washing and drying may deteriorate.

  In the shampoo composition of the present invention, the total content of the components (a) to (d) is preferably 80% by mass or more, particularly preferably 85 to 100% by mass, and further preferably 90 to 100% by mass.

The shampoo composition of this invention is obtained by mixing the above (a) component-(d) component.
The shampoo composition of the present invention can appropriately contain other components used in the shampoo as long as the effects of the present invention are not impaired.
Examples of such components include cationic surfactants such as alkyltrimethylammonium chloride and dialkyldimethylammonium chloride; foaming agents such as higher fatty acids and higher alcohols; pearls such as ethylene glycol distearate and triethylene glycol distearate Gloss enhancer; Thickener such as methylcellulose, hydroxypropylmethylcellulose, carboxyvinyl polymer, xanthan gum; moisturizer such as 1,3-butylene glycol, propylene glycol, dipropylene glycol, glycerin, diglycerin, isoprene glycol; squalane, jojoba Oils such as oil, olive oil, castor oil, lanolin and lecithin; preservatives such as parabens; salicylic acid, isopropylmethylphenol, triclosan, zincpi Bactericides such as thione and piroctone olamine; pH adjusters such as citric acid and sodium citrate; sequestering agents such as edetate and hydroxyethanediphosphonic acid; paramethoxycinnamic acid-2-ethylhexyl, oxybenzone , UV absorbers such as 2-dimethylhexyl paradimethylaminobenzoate; Tonic agents such as 5-methyl-2-isopropylcyclohexanol and pepper tincture; Antioxidants such as dibutylhydroxytoluene and tocopherol acetate; Extracts derived from animals and plants , Pigments, fragrances and the like.

Hereinafter, the present invention will be described more specifically with reference to examples and comparative examples.
Using the (a) component described in Table 1, the (b) component described in Table 2, the (c) component described in Tables 3 and 4 and water, and based on the formulation described in Tables 3 and 4, ordinary methods According to the above, a shampoo composition was prepared.
Using the shampoo compositions obtained in Examples and Comparative Examples as samples, evaluation was performed as follows, and the results are summarized in Tables 3 and 4. In the following, “%” means mass%, and the numerical value of each component in Tables 3 and 4 means content (mass%).

(1) Fingering property at the time of rinsing 10 men and women each were panelists, 5 g of shampoo composition was used, hair and scalp were washed, and the fingering property at the time of rinsing was evaluated. Two points are given when there is no squeaky feeling, one is given when there is a slight squeaking feeling, and 0 is given when there is a strong feeling of squeaking. did.
○: Good fingering (total of 30 points or more)
Δ: Slightly good fingering property (total score 20 points or more and less than 30 points)
X: Poor fingering (total score less than 20)

(2) Finger passage after use of conditioner As a damaged hair, 10 g of a healthy 30 cm hair bundle (human hair black hair, manufactured by Beaulux) was immersed in a 4.5% aqueous hydrogen peroxide solution for 30 minutes, and further 2.5 After dipping in a 30% aqueous ammonia solution for 30 minutes, the rinsing process with tap water was repeated 6 times. The damaged hair was immersed in an aqueous solution in which each shampoo composition was diluted 10 times for 5 minutes, and then rinsed with 1 L of tap water. Then, after processing with 3 g of the following conditioner for evaluation, it was rinsed with tap water and air-dried in a constant temperature and humidity room (25 ° C., 50 RH).
The treated hair was evaluated by fingering of the treated hair by 10 male and female panelists each. There is no difference between the root part and the hair tip part, 2 points when you feel uniform fingering, 1 point when you feel somewhat uniform fingering, 0 points when you do not feel uniform fingering As a result, the total score of 20 people was obtained and evaluated as follows: ○: Good fingering property (total score of 30 points or more)
Δ: Slightly good fingering property (total score 20 points or more and less than 30 points)
X: Poor fingering (total score less than 20)

[Preparation of conditioner for evaluation]
(Composition composition)
Stearyltrimethylammonium chloride: 0.7%
Cetyl alcohol: 1.5%
Stearyl alcohol: 1.0%
Glycerin: 2.0%
Purified water: 94.8%
(Manufacturing method)
Purified water was mixed with stearyltrimethylammonium chloride and glycerin and kept at 70 ° C. (aqueous phase). An oil phase in which cetyl alcohol and stearyl alcohol were mixed in advance and dissolved by heating was added and emulsified, and then cooled.

From the evaluation results of Examples 1 to 5 shown in Table 3, the shampoo composition of the present invention was good in both fingering property at the time of rinsing and fingering property after use of the conditioner.
On the other hand, as shown in Table 4, in Comparative Examples 1 to 9, sufficient performance was not obtained.
That is, in Comparative Examples 1 and 2, since the component (a ′) in which the content of the acylmethyltaurine derivative in which RCO is an acyl group having 14 carbon atoms (myristic acid residue) is less than 26% by mass is used, The finger-wiping property at the time of rinsing and the finger-wiping property after using the conditioner were not sufficient.
In Comparative Examples 3 and 4, since a surfactant different from the component (a) was used instead of the component (a), the fingering property at the time of rinsing and the fingering property after using the conditioner were not sufficient.
In Comparative Example 5, since the component (a) was not contained, both fingering property at the time of rinsing and fingering property after use of the conditioner were bad.
In Comparative Example 6, since the component (b) was not contained, the fingering property at the time of rinsing and the fingering property after use of the conditioner were not sufficient.
In Comparative Example 7, since the component (c) was not contained, both fingering property at the time of rinsing and fingering property after using the conditioner were bad.
In Comparative Example 8, since the mass ratio ((a) / (b)) exceeded the upper limit of the range specified in the present invention, the fingering property during rinsing and the fingering property after using the conditioner were not sufficient. .
In Comparative Example 9, the mass ratio ((a) / (b)) was below the lower limit of the range specified in the present invention, so that the fingering property during rinsing and the fingering property after using the conditioner were not sufficient. .

Claims (1)

(A) Component: 3 to 30% by mass of a trimethylglycine derivative of acylmethyltaurine represented by the formula (1),
(B) component: 3-30 mass% of amphoteric surfactant,
(C) component: 0.03 to 3% by mass of a cationized polymer, and (d) component: 37 to 94% by mass of water,
In the component (a), the content of the acylmethyl taurine derivative in which RCO in the formula (1) is an acyl group having 14 carbon atoms is 26% by mass or more,
The mass ratio ((a) / (b)) of component (a) to component (b) is 0.2-3.
A shampoo composition.

(RCO in the formula represents an acyl group having 8 to 22 carbon atoms, and X represents a cation represented by formula (2).)

(M in the formula represents an alkali metal, an alkanol ammonium or a basic amino acid.)