JP6295871B2 - Shampoo composition - Google Patents

Description

  The present invention relates to a shampoo composition.

  When damaged hair is washed with a shampoo composition and rinsed, the hairs may become entangled, resulting in split ends and tears. Further, excessive removal of the oily component of the hair may impair the moist feeling of the hair after drying and may make it crispy. For this reason, the shampoo composition is required to have foaming at the time of shampooing (representing at the time of rinsing and rinsing), finger penetration at the time of rinsing and a moist feeling of the hair after drying.

  In recent years, hair has been increasingly damaged by chemical treatment such as perm, hair color, bleaching, and prolonged exposure to sunlight due to an increase in the amount of ultraviolet rays. As a result, the hair loses an appropriate hardness, and there is a case where the hair is not soft and becomes too soft. In addition, since the hair is naturally thin or aging, the hair becomes thin and loses a harsh feeling, and the hair may become soft. If the hair has no harshness and the hair is too soft, it will be difficult to set the hairstyle or give the hair volume, so a certain harshness is required even after washing.

  For example, in Patent Document 1, N-coconut oil fatty acid-N-methyl-β-alanine taurine sodium whose counter ion is taurine sodium is used in order to give a smooth feeling to the hair after rinsing and dry hair. And a shampoo composition combining an amphoteric surfactant and a cationized polymer. This shampoo composition is excellent in foaming properties (foaming) and foam quality at the time of washing the hair, fingering properties at the time of washing the hair (especially at the time of rinsing), and a moist feeling of the hair after washing and drying. The feeling of harshness was insufficient.

  In order to improve the feeling of elasticity, Patent Document 2 describes a shampoo containing a quaternary ammonium derivative of an animal protein-derived peptide and lauroyl sarcosine triethanolamine, and Patent Document 3 describes a high-viscosity silicone. A shampoo composition containing an emulsion, sodium lauryl ether sulfate (3EO) and a cationized polymer is described. These compositions have a harsh feeling after washing and drying, but foaming at the time of washing the hair is insufficient, and the hair feels moist after drying in some cases.

International Publication No. 2013/39086 JP-A-5-78224 JP-A-4-234309

  An object of the present invention is to provide a shampoo composition that has good foaming and foam quality at the time of shampooing, has good finger-handing properties at the time of shampooing, and can impart a firmness and a firm feeling to the hair after being washed and dried. It is to be.

  As a result of intensive studies to solve the above-mentioned problems, the present inventors have found that taurine derivatives of acylmethylglycine, amphoteric surfactants, cationized polymers, and water each contain specific amounts, and taurine derivatives of acylmethylglycine 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.

（式中のＲ^１ＣＯは炭素数８〜２０のアシル基を示し、Ｘ^＋は式（２）で表されるカチオンである。）

（式中のＭ^１はアルカリ金属、アルカノールアミンまたは塩基性アミノ酸を示す。） That is, the present invention comprises (a) component: 3-30% by mass of taurine derivative of acylmethylglycine represented by formula (1), (b) component: 3-30% by mass of amphoteric surfactant, (c) component : Cationized polymer 0.03 to 3% by mass, and component (d): water 37 to 94% by mass, and the mass ratio (a) / (b) of component (a) to component (b) is 0. 2 to 3 shampoo compositions.

(R ¹ CO in the formula represents an acyl group having 8 to 20 carbon atoms, and X ⁺ is a cation represented by formula (2).)

(In the formula, M ¹ represents an alkali metal, an alkanolamine, or a basic amino acid.)

The shampoo composition of the present invention further contains (e) component: a nonionic surfactant represented by the formula (3), and the mass ratio (e) / (a) of the component (e) to the component (a). ) Is preferably 0.08 to 0.9.
^{Z- [O (EO) m-} R 2] y ... Formula (3)
(In the formula, Z is a residue obtained by removing all hydroxyl groups from a compound having 2 or more carbon atoms and a hydroxyl group number y of 2 to 9, EO is an oxyethylene group. M is an average of oxyethylene groups. The number of added moles, and the average number of moles added per hydroxyl group m / y is 5 to 20. R ² is a fatty acid residue or hydrogen atom having 8 to 22 carbon atoms, and the esterification rate of the compound of formula (3) Is 40 to 90%.)

  According to the shampoo composition of the present invention, foaming and foam quality at the time of shampooing are good, fingering property at the time of shampooing is good, and it is possible to impart a feeling of elasticity as well as a moist feeling to hair after washing and drying. An effect is obtained.

Embodiments of the present invention will be described below.
The shampoo composition of the present invention comprises: (a) component: taurine derivative of acylmethylglycine represented by formula (1); (b) component: amphoteric surfactant; (c) component: cationized polymer; ) Ingredient: Contains water.
Each component will be described sequentially.

[(A) component: taurine derivative of acylmethylglycine]
The component (a) in the present invention is a taurine derivative of acylmethylglycine represented by the formula (1).
R ¹ CO in the formula (1) is an acyl group having 8 to 20 carbon atoms, and examples thereof include a lauroyl group, a myristoyl group, a palmitoyl group, a stearoyl group, and an oleoyl group. Moreover, an acyl group derived from a mixed fatty acid can be used as the acyl group having 8 to 20 carbon atoms, and examples of the mixed fatty acid include coconut oil fatty acid and palm kernel oil fatty acid. Preferred examples of the acyl group include lauroyl group, myristoyl group, coconut oil fatty acid acyl group, and palm kernel oil fatty acid acyl group. More preferred are a lauroyl group, a coconut oil fatty acid acyl group, and a palm kernel oil fatty acid acyl group. If the carbon number of R ¹ CO is 7 or less, the creamy property of the foam may be lowered, and if the carbon number of R ¹ CO is 21 or more, the foamability (foaming property) may be lowered.

X ⁺ in the formula (1) is a cation represented by the formula (2). M ¹ in the formula (2) represents an alkali metal, an alkanolamine or a basic amino acid, and examples thereof include sodium, potassium, monoethanolammonium, diethanolammonium, triethanolammonium, arginine, and lysine hydrochloride.

The taurine salt of acylmethylglycine represented by the formula (1) can be obtained, for example, by the following method. An acylmethylglycine sodium aqueous solution is prepared by acylating sodium N-methylglycine with a fatty acid chloride in the presence of an alkali, preferably in the presence of sodium hydroxide. This acylmethylglycine sodium aqueous solution contains sodium chloride, and in order to remove this, the pH is adjusted to 1-2 with an acid such as sulfuric acid to separate the acylmethylglycine from the oil layer and the aqueous layer. Purify.
It is preferable to charge this acylmethylglycine with a taurine salt as a target counter ion, for example, taurine sodium, in an amount of 1.0 to 1.2 times the number of moles of acylmethylglycine, and the temperature during stirring is 50 ~ 80 ° C is preferred. The pH of the aqueous solution of taurine salt of acylmethylglycine represented by the formula (1) prepared by this method is 6-8.

In the 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 less than 3% by mass, the foaming property may be lowered. When the content is more than 30% by mass, the fingering property may be lowered at the time of washing the hair, particularly at the time of rinsing.
In addition, (a) component may be used individually by 1 type, or may use 2 or more types together.

[(B) component: amphoteric surfactant]
The component (b) in the present invention is an amphoteric surfactant, and has the effect of improving foamability 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, more preferably 12-14, from the viewpoints 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 the amphoteric surfactant include lauryl betaine, coconut oil fatty acid amidopropyl betaine, palm kernel oil fatty acid amidopropyl betaine, and lauryl hydroxysulfobetaine. Specific products of amphoteric surfactants include Nissan Anon (registered trademark) BL, Nissan Anone (registered trademark) BDF (registered trademark) -R, Nissan Anone (registered trademark) BDB-S, and the like.

In the 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 less than 3% by mass, the foamability and foam quality may be lowered, and when it exceeds 30% by mass, the fingering property at the time of washing the hair, particularly at the time of rinsing, may be lowered.
In addition, (b) 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 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, and more preferably 0.1 to 1.5% by mass. . When the content of the component (c) is less than 0.03% by mass, there is a possibility that the fingering property at the time of washing and rinsing may be lowered, and when it exceeds 3% by mass, the moist feeling of the hair may be lowered after drying. is there.

[(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 composition of the present invention, the mass ratio (a) / (b) of the component (a) to the component (b) is usually 0.2 to 3, preferably 0.5 to 2.5, more preferably 0.8-2. When the mass ratio (a) / (b) is less than 0.2, and when it exceeds 3, there is a risk that the finger's permeability during shampooing, especially rinsing, will be low, and the moist feeling of the hair after drying may be low. is there.
In the composition of the present invention, the total content of the components (a) to (d) is usually 80% by mass or more, preferably 85 to 100% by mass, and more preferably 90 to 100% by mass.

  The shampoo composition of this invention is obtained by mixing the above (a) component-(d) component. In the shampoo composition of this invention, it is preferable to further contain the nonionic surfactant represented by Formula (3) as (e) component.

[(E) component: nonionic surfactant]
^{Z- [O (EO) m-} R 2] y ... Formula (3)
In the formula (3), Z is a residue having 2 or more carbon atoms and excluding all hydroxyl groups of the compound having 2 to 9 hydroxyl groups. The compound having 2 or more carbon atoms and having 2 to 9 hydroxyl groups (hereinafter also referred to as a hydroxyl group-containing compound) is ethylene glycol if the number of hydroxyl groups is 2, and glycerin if the number of hydroxyl groups is 3. , Trimethylolpropane, erythritol, pentaerythritol, sorbitan, alkylglycoside if the number of hydroxyl groups is 4, xylitol if the number of hydroxyl groups is 5, dipentaerythritol, sorbitol, inositol, hydroxyl group if the number of hydroxyl groups is 6. If the number is 8, sucrose, trehalose and maltitol are exemplified if the number of hydroxyl groups is 9. In preparing the ethylene oxide derivative represented by the formula (3), the above hydroxyl group-containing compound may be used singly or a mixture containing two or more kinds may be used.

y is the number of hydroxyl groups of the hydroxyl group-containing compound constituting Z and is 2 to 9, preferably 3 to 7, and more preferably 5 to 7. If y is 1, foam quality improvement and good conditioning effect may not be obtained, and if y is 10 or more, sticky feeling may occur.
m is the average number of moles of oxyethylene groups added, and the average number of moles of oxyethylene groups added per hydroxyl group m / y is 5-20, preferably 5-15, more preferably 7-12. . When m / y is less than 5, there is a risk that the finger-penetration property during shampooing, particularly when rinsing, may be reduced, and when m / y exceeds 20, the moist feeling of the hair after drying may be reduced.

R ² is a fatty acid residue having 8 to 22 carbon atoms or a hydrogen atom. The fatty acid constituting R ² has 8 to 22 carbon atoms, and saturated fatty acid, unsaturated fatty acid, branched fatty acid, hydroxyl group-substituted fatty acid and the like are used.
Examples of fatty acids include caprylic acid, nonanoic acid, decanoic acid, lauric acid, tridecanoic acid, isotridecanoic acid, myristic acid, pentadecanoic acid, palmitic acid, heptadecanoic acid, stearic acid, nonadecanoic acid, behenic acid, dodecenoic acid, tetradecenoic acid Hexadecenoic acid, palmitooleic acid, oleic acid, vaccenic acid, linoleic acid, linolenic acid, arachidonic acid, isostearic acid, hydroxystearic acid and the like, among which lauric acid, isostearic acid and oleic acid are preferred.
In preparing the ethylene oxide derivative represented by the formula (3), these fatty acids may be used alone or in combination of two or more.

Specific examples of the ethylene oxide derivative represented by the formula (3) include PEG (60) sorbite tetraoleate, PEG (40) sorbite tetraoleate, PEG (40) sorbitol trilaurate, PEG (30) glyceryl triisostearate, Examples include dioleic acid PEG (23).
In addition, (e) component may be used individually by 1 type, or may use 2 or more types together.

  The esterification rate of the ethylene oxide derivative represented by the formula (3) is usually 40 to 90%, preferably 50 to 85%, more preferably 60 to 80%. If it is less than 40%, there is a risk that the finger-penetrating property during shampooing, particularly rinsing, may be reduced, and if it exceeds 90%, the moist feeling of the hair after drying may be reduced.

Here, the esterification rate represents the ratio of the number of hydroxyl groups in which fatty acids are ester-bonded out of the total number of hydroxyl groups of the hydroxyl group-containing compound constituting Z in formula (3), and the saponification value (e) of the component ( SV), hydroxyl value (OHV), and acid value (AV) can be measured and calculated by the following method.
Esterification rate = [(SV-AV) / (SV-AV + OHV)] × 100
SV, AV, and OHV can all be measured according to the method described in Japanese Industrial Standard (JIS).
SV; JIS K-0070 4.1
AV; JIS K-0070 3.1
OHV; JIS K-1557 1

  When the composition of the present invention contains the component (e), the mass ratio (e) / (a) of the component (e) to the component (a) is preferably 0.08 to 0 in the composition of the present invention. .9, and more preferably 0.2 to 0.8. By including the component (e) such that the mass ratio (e) / (a) is 0.08 to 0.9, an effect of further improving the finger-wiring property at the time of washing the hair, particularly at the time of rinsing can be obtained.

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. As Examples 1 to 6 and Comparative Examples 1 to 10, shampoo compositions having the compositions shown in Table 1 and Table 2 were prepared, and the following items (1) to (4) were evaluated by the following methods.
In Tables 1 and 2, the numerical value of each component represents parts by mass.
(1) Foam quality during shampooing (2) Finger passage during rinsing (3) Moist feeling of hair after drying (4) Harshness of hair after drying

(1) Foam quality at the time of shampooing 10 males and 10 females were panelists, and 5 g of a shampoo composition was used to evaluate foaming properties and foam creamy properties when washing hair and scalp. 2 points for feeling good foaming and foam creaminess, 1 point for feeling foaming and foaming creamy, I felt that foaming and foaming creamy were bad The case was set to 0 points, and the following 3 levels were evaluated from the total score of 20 people.
A: Very good foam quality (total of 36 points or more)
○: Foam quality is good (total score 30 points or more and less than 36 points)
Δ: Slightly good foam quality (total 20 or more and less than 30)
X: Poor foam quality (total point less than 20 points)

(2) 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.
◎: Very easy to touch (total score of 36 points or more)
○: Fingering property is good (total score 30 points or more and less than 36 points)
Δ: Slightly good fingering property (total score 20 points or more and less than 30 points)
X: Poor fingering (total score less than 20)

(3) Moist feeling of hair after drying 10 men and women each were panelists, and after washing and rinsing with 5 g of shampoo composition and air-drying, the moist feeling of hair was evaluated. 2 points when the hair feels squeaky and the combing is smooth, 1 point when the combing feels slightly smooth, 0 when the hair feels squeaky and the combing is bad As a point, it evaluated from the total score of 20 people in the following three steps.
(Double-circle): The moist feeling of the hair after drying is very favorable (a total of 36 points or more)
○: Moist feeling of the hair after drying is good (total point 30 points or more and less than 36 points)
Δ: Moist feeling of the hair after drying is slightly good (total score 20 points or more and less than 30 points)
X: Moist feeling of hair after drying is poor (total score less than 20 points)

(4) Harness of hair after drying Ten males and females were panelists, and the hair was rinsed and rinsed with 5 g of the shampoo composition, and the firmness of the hair after air drying was evaluated. 2 points when the hair feels that it has more hair before washing, 1 point when the hair feels slightly more than before washing, 0 points when the hair feels the same as before washing As a result, the total score of 20 people was evaluated.
A: The hair feels good after drying and is very good (total of 36 points or more).
○: The firmness of the hair after drying is good (total score 30 points or more and less than 36 points)
Δ: Slightly good feel of hair after drying (total point 20 points or more and less than 30 points)
X: The dryness of the hair after drying is poor (less than 20 points in total)

  Siliconharz MK (manufactured by Wacker) was used as the silicon suspension in Comparative Example 8, and Promois MILK-Q (Seiwa Kasei Co., Ltd.), which is a quaternary ammonium derivative of the animal protein-derived peptide as the animal protein-derived peptide in Comparative Example 9. Used).

  From the evaluation results of Examples 1 to 6 shown in Table 1, the shampoo composition of the present invention is excellent in foaming property, foam creamy property, fingering property at the time of rinsing, and moisturized hair after drying, A harsh feeling was imparted to the hair after drying.

On the other hand, as shown in Table 2, in Comparative Examples 1 to 10, sufficient performance was not obtained.
That is, since Comparative Example 1 does not contain the component (b), the foam quality at the time of shampooing, the fingering property at the time of rinsing, and the moist feeling of the hair after drying were slightly inferior to the examples. In Example 2, since the component (c) was not contained, the foam quality at the time of shampooing and the moist feeling of the hair after drying were slightly inferior to those of the examples, and the fingering property at the time of rinsing was poor.
In Comparative Example 3, since the mass ratio (a) / (b) is below the lower limit of the range specified in the present invention, the foam quality at the time of shampooing, the fingering property at the time of rinsing, and the moist feeling of the hair after drying are performed. Slightly inferior to the example, and the hair feels dry after drying.

In Comparative Example 4, the mass ratio (a) / (b) exceeds the upper limit of the range specified in the present invention, so that the fingering property at the time of rinsing and the moist feeling of the hair after drying were inferior to the examples. .
In Comparative Example 5, since the blending amount of component (c) exceeded the upper limit value of the present invention, the moist feeling of the hair after drying was inferior to that of the example.
In Comparative Examples 6, 7 and 10, since the surfactant different from the component (a) was contained instead of the component (a), sufficient performance as in Examples of the present application was not obtained.
In Comparative Examples 8 and 9, in place of the component (a), a surfactant different from the component (a) is contained, and a component that increases the harshness of the hair is contained. Could not be obtained sufficiently.

Claims (2)

(A) Component: 3-30% by mass of taurine derivative of acylmethylglycine represented by 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: containing 37 to 94% by mass of water,
The shampoo composition whose mass ratio (a) / (b) of (a) component and (b) component is 0.2-3.

(R ¹ CO in the formula represents an acyl group having 8 to 20 carbon atoms, and X ⁺ is a cation represented by formula (2).)

(In the formula, M ¹ represents an alkali metal, an alkanolamine, or a basic amino acid.) (E) component: further containing a nonionic surfactant represented by the formula (3),
The shampoo composition according to claim 1, wherein the mass ratio (e) / (a) of the component (e) to the component (a) is 0.08 to 0.9.
^{Z- [O (EO) m-} R 2] y ... Formula (3)
(In the formula, Z is a residue obtained by removing all hydroxyl groups from a compound having 2 or more carbon atoms and a hydroxyl group number y of 2 to 9, EO is an oxyethylene group. M is an average of oxyethylene groups. The number of added moles, and the average number of moles added per hydroxyl group m / y is 5 to 20. R ² is a fatty acid residue or hydrogen atom having 8 to 22 carbon atoms, and the esterification rate of the compound of formula (3) Is 40 to 90%.)