JP6080374B2 - Hair cosmetic composition - Google Patents

Description

  The present invention relates to a hair cosmetic composition.

  Patent Document 1 describes a styling treatment composition containing a polyamine, an acid, a water-insoluble component, a film-forming agent, and a solvent. The styling treatment composition is water resistant and imparts a moisture-proof barrier to the hair surface, so that the hairstyle can be easily adjusted or styled.

European Patent Application No. 2067467

  In recent years, hair cosmetics are expected to have a conditioning effect that can give the hair a smooth and coherent feel. However, the technique described in Patent Document 1 has not been studied from such a viewpoint.

  In addition, techniques for imparting smoothness and unity to hair only with polycations or fatty acids have already been reported, but they have poor persistence, and the feeling of smoothness and unity disappears until the next day's hair washing. It was something that would end up. Further, when the blending amount is increased in order to increase the duration of the conditioning effect, there is a problem that the hair feels sticky, the hair becomes difficult to align, and a heavy feel remains.

  By using a hair cosmetic that combines a specific cationic polymer and a specific fatty acid, the inventors of the present invention make it easy to align the hair while maintaining a conditioning effect such as smoothness and unity on the hair, The present invention was completed by finding that a cool feeling was imparted and a pleasant touch was continuously obtained until the next day's hair washes.

That is, the present invention includes the following components:
(A) Cationic polymer (B) Fatty acid (C) A hair cosmetic composition comprising a cationic or anionic surfactant is provided.
In such a hair cosmetic composition, the cation density of the component (A) is 4 meq / g or more, the component (B) is (B-1) a branched fatty acid represented by the following general formula (1), and (B-2) A mixed fatty acid of a linear fatty acid having 14 to 22 carbon atoms and isostearic acid, the mass ratio of the linear fatty acid having 14 to 22 carbon atoms and isostearic acid in the mixed fatty acid (linear Fatty acid / isostearic acid) is selected from mixed fatty acids having 0.25-4.

[Wherein, R ¹ represents a methyl group or an ethyl group, and n represents an integer of 9 to 17. ]

The present invention also includes a step of applying the above-described hair cosmetic composition to the hair,
After the step, rinsing the hair with water;
A method for treating hair, comprising:
Moreover, this invention provides the manufacturing method of the hair-cosmetics composition which heat-mixes the said component on alkaline conditions.

  According to the present invention, while maintaining the conditioning effect such as smoothness and unity on the hair, it is easy to align the hair, further imparts a cool feeling, and a comfortable touch can be continuously obtained until the next day's hair washing A cosmetic composition and a hair treatment method using the same are provided.

It is a figure which shows the infrared absorption spectrum of the hair cosmetic composition of an Example.

Embodiments of the present invention will be described below.
Component (A) is a cationic polymer having a cation density of 4 meq / g or more. And what contains a quaternary ammonium salt as a cation is mentioned. In the present invention, the cation density is the reciprocal of the molecular weight of the repeating unit containing one nitrogen atom of the cation polymer, and is preferably 5 meq / g or more from the viewpoint of strongly adsorbing onto the hair and expressing persistence, and 6 meq / g. The above is more preferable, and 7 meq / g or more is still more preferable. There is no particular upper limit to the cation density of component (A), but if it is 10 meq / g or less, it is practical because it is readily available.

  The component (A) preferably has a weight average molecular weight of 1,000 to 1,000,000, and more preferably 10,000 to 10,000 from the viewpoint of providing smoothness and unity to the hair and maintaining a feeling of stickiness. 500,000, more preferably 100,000 to 400,000. In addition, in this invention, a weight average molecular weight is measured by well-known measuring methods, such as a gel permeation chromatography (GPC), and the Tosoh HLC-8220 series etc. are mentioned as an example of a measuring apparatus.

  Examples of the component (A) include diallyl quaternary ammonium salt polymer, diallyl quaternary ammonium salt / acrylic acid copolymer, dimethyl diallylammonium salt / acrylamide copolymer, vinyl imidazolinium salt / vinyl pyrrolidone copolymer. And ionene polymer. The counter ion in the component (A) cationic polymer is preferably a halogen ion, more preferably a chloride ion or a bromide ion from the viewpoint of forming a complex of the component (A) and the component (B) in the composition. Preferably, chloride ions are more preferred.

  Preferably, as component (A), dimethyldiallylammonium chloride polymer (polyquaternium-6), dimethyldiallylammonium chloride / acrylamide copolymer (polyquaternium-7), vinylimidazolinium trichloride / vinylpyrrolidone copolymer (polyquaternium) -16), dimethyldiallylammonium chloride / acrylic acid copolymer (polyquaternium-22), more preferably dimethyldiallylammonium chloride polymer (polyquaternium-6), dimethyldiallylammonium chloride / acrylic acid copolymer ( Examples include polyquaternium-22) and ionene polymers.

  As the component (A), commercially available products can be used. For example, polyquaternium-6 includes Marquat 100 (manufactured by NALCO), and polyquaternium-7 includes marquat 740 (manufactured by NALCO) and marquat 2200 (NALCO). Polyquaternium-22 includes Marquat 280 (manufactured by NALCO) and Marquat 295 (manufactured by NALCO), and ionene polymers include hexadimethrin bromide (manufactured by Nakarai Tasks) and ioneneG ( Chimex).

  Component (A) may be used in combination of two or more of these cationic polymers. Further, the content of the component (A) is the hair cosmetic composition of the present invention from the viewpoint of making the hair easy to align without giving a sticky feeling while enhancing the sustainability of the conditioning effect that imparts smoothness and unity to the hair. It is preferable that 0.001-10.0 mass% is contained with respect to the whole composition, 0.01-5.0 mass% is more preferable, 0.1-2.5 mass% is included. More preferably.

  The fatty acid of a component (B) is selected from the said component (B-1) and the said component (B-2).

  As described above, the component (B-1) is a branched fatty acid represented by the above general formula (1), and preferably has 14 to 24 carbon atoms from the viewpoint of providing smoothness and unity to the hair. Are more preferred. Specific examples include 20-methylheneicosanoic acid, 19-methylheneicosanoic acid, 19-methyleicosanoic acid, 18-methyleicosanoic acid, 18-methylnonadecanoic acid, 17-methylnonadecanoic acid, 17-methyloctadecanoic acid. 16-methyloctadecanoic acid, 16-methylheptadecanoic acid, 15-methylheptadecanoic acid, 15-methylhexadecanoic acid, 14-methylhexadecanoic acid, 14-methylpentadecanoic acid, 13-methylpentadecanoic acid, 13-methyltetradecanoic acid , 12-methyltetradecanoic acid, 12-methyltridecanoic acid, 11-methyltridecanoic acid. An extract from lanolin, that is, a lanolin fatty acid can also be used. Any of these may be a mixture of two or more.

  As described above, the component (B-2) is a mixed fatty acid of a linear fatty acid having 14 to 22 carbon atoms and isostearic acid. As a C14-C22 linear fatty acid which comprises the mixed fatty acid of a component (B-2), a saturated or unsaturated fatty acid is mentioned, A saturated fatty acid is preferable from a viewpoint of the ease of alignment of hair. From the viewpoints of friction after hair drying and unity, the number of carbon atoms is preferably 14 or more, more preferably 16 or more, more preferably 22 or less, and even more preferably 20 or less.

  Examples of the isostearic acid constituting the mixed fatty acid of the component (B-2) include multi-branched isostearic acid and emery-type isostearic acid represented by the following general formula (2).

  The isostearic acid represented by the general formula (2) is a branched saturated fatty acid in which the sum of a, b and c is a + b + c = 15 in the formula (2), a is 2 or more, and b is 1. .

  Isostearic acid is a branched fatty acid described in, for example, “Cosmetic Raw Material Standards 2nd Edition Commentary I (1984) Yakuji Nipposha” P.87 (C) Isostearic Acid, the methyl group is a side chain, and the position is specified. Although not described, it is described as a C18 fatty acid obtained by hydrogenating an unsaturated side chain fatty acid by-produced when synthesizing dimer acid from oleic acid. Such fatty acids can also be used in the present invention.

  Examples of the multi-branched isostearic acid include NOF's isostearic acid, isostearic acid N, and isostearic acid T. Examples of emery-type isostearic acid represented by the formula (2) include isostearic acid EX manufactured by Higher Alcohol Industry. Is mentioned.

  The mass ratio (linear fatty acid / isostearic acid) of linear fatty acid having 14 to 22 carbon atoms and isostearic acid in the mixed fatty acid of component (B-2) is 0.25 to 0.25 from the viewpoint of imparting smoothness to the hair. Although it is 4, it is preferable that it is 0.67-1.5.

  The content of the component (B) is preferably 0.001 to 10% by mass with respect to the entire hair cosmetic composition, from the viewpoint of providing a good fit to the hair and a cool feeling, 0.01 to 5%. It is more preferable that it is mass%, and it is still more preferable that it is contained by 0.02-5 mass%. Moreover, it is also possible to use a component (B-1) and (B-2) together.

  The mass ratio (A) / (B) of the component (A) and the component (B) is preferably 0.1 to 0.5 from the viewpoint of imparting a smoothness and unity to the hair and giving a cool and comfortable feel. Although it is 9, More preferably, it is 0.3-3, More preferably, it is 0.5-2.

Furthermore, efficient hair persistently smoothness, impart cohesive, chilly from the viewpoint of giving a pleasant feel was, component mole number of the carboxyl groups of the number of moles M _A and component B of the amino groups of (A) M _B The ratio M _A / M _B is preferably 0.25 to 4, more preferably 0.5 to 2. Here, M _A is a value obtained by dividing the molecular weight of the high polymer molecular weight per amino group unit, and M _B, in the case of monocarboxylic acid compound equal to the number of moles of component B.

  As the component (C), a cationic or anionic surfactant can be used. When the hair cosmetic composition of the present invention is used as a conditioner, it is preferable to contain a cationic surfactant as the component (C), and when the hair cosmetic composition of the present invention is used as a shampoo, the component (C) preferably contains an anionic surfactant.

  Examples of the cationic surfactant used as the component (C) include amines of the following general formula (3), quaternary ammonium salts represented by the general formula (4) or (5), and the like.

In the formula (3), R ¹¹ may be divided by a functional group represented by —OCO— or —COO— and / or may be substituted with —OH and has 8 to 35 carbon atoms. A linear or branched alkyl group, an alkenyl group, or an aliphatic acyloxy (polyethoxy) ethyl group, wherein R ¹² and R ¹³ are alkyl groups having 1 to 22 carbon atoms, or hydroxyalkyl groups, or a total number of added moles of 10; The following polyoxyethylene groups are shown.

In formula (4), R ³¹ and R ³² represent a hydrogen atom, an alkyl group having 1 to 28 carbon atoms or a benzyl group, but at the same time, they do not become a hydrogen atom or a benzyl group, at least one of which has 8 carbon atoms. These are the above alkyl groups. R ³³ and R ³⁴ represent an alkyl group having 1 to 5 carbon atoms or a hydroxyalkyl group, or a (hydroxy) alkyl group having polyoxyethylene having an addition mole number of 10 or less, and An ⁻ represents an anion.

In formula (5), R ⁴¹ represents a linear or branched alkyl group or alkenyl group having 6 to 24 carbon atoms, and R ^{42 to} R ⁴⁴ represent an alkyl group having 1 to 6 carbon atoms, a benzyl group, or — (DO) _f H (D represents an alkylene group having 2 to 4 carbon atoms, f represents an average added mole number of 1 to 6, f D may be the same or different, and the arrangement thereof is arbitrary. .) indicates, an ^- represents an anion.

  The cationic surfactant used as component (C) preferably contains one or more of the tertiary amine compounds (i) to (iii) above.

(I) Hydroxy ether alkyl amine (i) As the hydroxy ether alkyl amine, for example, a hydroxy ether alkyl amine represented by the following general formula (6) is used.

In the formula (6), R ¹⁷ represents a linear or branched alkyl group or alkenyl group having 6 to 24 carbon atoms, and R ¹⁸ and R ¹⁹ represent an alkyl group having 1 to 6 carbon atoms or — (AO) _f. H (AO is an alkyleneoxy group having 2 to 4 carbon atoms, f is a number of 1 to 6, f AOs may be the same or different, and the arrangement thereof is arbitrary), and e is 1 to 1 An integer of 5 is shown.

  (I) Specific examples of the hydroxy ether alkylamine include hexadecyloxy (2-hydroxypropyl) dimethylamine and octadecyloxy (2-hydroxypropyl) dimethylamine.

(Ii) Etheramine (ii) As the etheramine, for example, an etheramine represented by the following general formula (7) is used.

In the formula (7), R ²⁰ represents a linear or branched alkyl group or alkenyl group having 6 to 24 carbon atoms, and R ²¹ and R ²² represent an alkyl group having 1 to 6 carbon atoms or — (AO) _g. H (AO represents an alkyleneoxy group having 2 to 4 carbon atoms, g represents an integer of 1 to 6, and g AOs may be the same or different, and the arrangement thereof is arbitrary).

  (Ii) As the ether amine, specifically, N, N-dimethyl-3-hexadecyloxypropylamine and N, N-dimethyl-3-octadecyloxypropylamine can be used.

(Iii) Alkylamidoamine (iii) As the alkylamidoamine, for example, an alkylamidoamine represented by the following general formula (8) is used.

In the formula (8), R ²³ represents a linear or branched alkyl group or alkenyl group having 11 to ²³ carbon atoms, R ²⁴ and R ²⁵ represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, m Represents an integer of 2 to 4.

  (Iii) As the alkylamidoamine, specifically, (3- (dimethylamino) propyl) docosanamide or (3- (dimethylamino) propyl) stearamide can be used.

In the quaternary ammonium salt represented by the general formula (4), in the formula (4), when R ³¹ or R ³² is an alkyl group, those having 16 to 24 carbon atoms are preferable, and more preferably 22 and a linear alkyl group is preferred. Examples of An ⁻ include halide ions such as chloride ions and bromide ions, and organic anions such as ethyl sulfate ions and methyl carbonate ions. Halide ions are preferable, and chloride ions are more preferable.

As the quaternary ammonium salt represented by the general formula (4), a mono-long chain (R ³¹ having 8 to 28 carbon atoms and R ³² having 1 to 6 carbon atoms) is preferably a quaternary ammonium salt. Examples thereof include behenyltrimethylammonium chloride, stearyltrimethylammonium chloride, cetyltrimethylammonium chloride, aralkyltrimethylammonium chloride and the like, among which behenyltrimethylammonium chloride and stearyltrimethylammonium chloride are preferable.

In the ether type quaternary ammonium salt represented by the general formula (5), R ⁴¹ preferably has 12 to 22 carbon atoms, more preferably has 16 to 18 carbon atoms, and a linear alkyl group is preferable. . R ^{42 to} R ⁴⁴ are preferably an alkyl group having 1 to 6 carbon atoms and — (CH ₂ CH ₂ O) _k H, and the alkyl group having 1 to 6 carbon atoms is preferably a methyl group or an ethyl group, more preferably a methyl group. Preferably, as — (CH ₂ CH ₂ O) _k H, k is preferably 1 to 3, and more preferably 1. Any one of R ^{42 to} R ⁴⁴ is preferably a methyl group and an ethyl group, and more preferably a methyl group. As An ^{−, the same} as those mentioned in the general formula (4) are preferable.

  Examples of the ether type quaternary ammonium salt represented by the general formula (5) include stearoxypropyltrimethylammonium chloride.

  The cationic surfactant used as component (C) is preferably a tertiary amine compound. From the viewpoint of smoothness at the time of application and rinsing of the hair cosmetic composition of the present invention, (ii) an ether amine, Or (iii) alkylamidoamine, (ii) etheramine is more preferred, N, N-dimethyl-3-hexadecyloxypropylamine, N, N-dimethyl-3-octadecyloxypropylamine is more preferred, N, N-dimethyl-3-octadecyloxypropylamine is preferred.

  The cationic surfactant used as the component (C) can be used alone or in combination of two or more kinds, and is 0.01 to 20% by mass in the hair cosmetic composition of the present invention. When it is 1 to 10% by mass, and further 0.5 to 5% by mass, the feeling in use is good and preferable.

  Examples of the anionic surfactant used as the component (C) include sulfuric acid type, sulfonic acid type, and carboxylic acid type.

  Examples of the sulfuric anionic surfactant include alkyl sulfates, polyoxyalkylene alkyl ether sulfates, and polyoxyalkylene alkenyl ether sulfates.

  Examples of the sulfonic acid-based anionic surfactants include sulfosuccinic acid alkyl ester salts, polyoxyalkylene sulfosuccinic acid alkyl ester salts, and alkane sulfonic acid salts.

Examples of the carboxylic acid anionic surfactant include higher fatty acid salts and alkyl ether carboxylates. Polyoxyalkylene alkyl ether sulfates and alkyl sulfates are more preferable, and those represented by the following general formula (9) or (10) are more preferable.
R ¹⁰ O (CH ₂ CH ₂ O) _p SO ₃ M (9)
R ¹⁰ OSO ₃ M (10)

In the above formulas (9) and (10), R ¹⁰ represents an alkyl group or alkenyl group having an average carbon number of 10 to 18, and M is derived from an alkali metal, an alkaline earth metal, ammonium, an alkanolamine or a basic amino acid. Represents a cation, and p represents a number of 1 to 5.

Among these, R ¹⁰ in the general formula (9) is an alkyl group having an average carbon number of 12 to 14, and p is 0.5 to 2 from the viewpoint of achieving both quick foaming during hair washing and good foam feel. Polyoxyethylene alkyl ether sulfates which are 0 and M is ammonium or sodium are preferred.

  The anionic surfactant of component (C) can be used alone or in combination of two or more kinds, and the content thereof is from the point of foaming at the time of washing the hair, liquidity at the time of use, detergency 1-30 mass% is preferable in the hair cosmetic composition of this invention, More preferably, it is 5-25 mass%, and 8-20 mass% is still more preferable.

  In addition to the above-described components, components usually used in hair cosmetics can be added to the hair cosmetic composition of the present invention depending on the purpose. Examples of such optional components include solubilizers, other surfactants, diluents, organic solvents, touch improvers, hair repair agents, chelating agents, thickeners, preservatives, antioxidants, and moisturizers. , Ultraviolet absorbers, pH adjusters, fragrances and the like.

  The hair cosmetic composition of the present invention can be produced, for example, by the following method. Add water, cationic polymer of component (A) and cationic or anionic surfactant of component (C) as an aqueous phase, adjust the pH by adding acids as necessary, and then heat with stirring. . Thereafter, the fatty acid of component (B) is dissolved in a solvent to prepare an oil phase, and then the oil phase is added to the aqueous phase and stirred to emulsify. The hair cosmetic composition which becomes a hair conditioner base material or a shampoo base material is then produced by allowing to cool with stirring.

  Examples of acids added to the aqueous phase include acids having a short-chain alkyl group such as alkyl phosphoric acid, alkyl sulfonic acid, and alkyl sulfuric acid; acidic amino acids such as L-glutamic acid and L-aspartic acid; pyroglutamic acid; benzoic acid Aromatic acids such as p-toluenesulfonic acid; glycolic acid, lactic acid, glyceric acid, gluconic acid, pantothenic acid, malic acid, tartaric acid, citric acid and other hydroxy acids; other phosphoric acid, hydrochloric acid, acetic acid, succinic acid, etc. Can be mentioned. Of these, organic acids are preferred, acidic amino acids, pyroglutamic acid, and hydroxy acids are preferred, and hydroxy acids are more preferred from the viewpoint of providing moisturizing and softening effects on hair.

As the solvent, higher alcohols or polyhydric alcohols are used. As the higher alcohol, an aliphatic alcohol having 12 to 26 carbon atoms can be used from the viewpoint that the hair can be smoothed at the time of application to the scalp and hair or subsequent rinsing. Those having a chain alkyl group or alkenyl group are preferred. Specifically, cetyl alcohol and stearyl alcohol are preferable.
Examples of polyhydric alcohols that can be used include 1,3-butylene glycol, propylene glycol, dipropylene glycol, polyethylene glycol, 1,3-propanediol, sorbit, and polyoxyalkylene alkyl glucoside.

  In the present invention, by using the specific cationic polymer as the component (A) and the specific fatty acid as the component (B) in combination, the polymer of the component (A) can be used on damaged hair having a high anionic group density. A part of the cation group is bonded, and the component (B) is ion-bonded to the rest of the cation group of the polymer of the component (A). The long chain alkyl group of B) can be exposed. Thereby, it is guessed that the surface of damaged hair can be modified and the hair is smooth and unity. Furthermore, the synergistic action of the component (A) and the component (B) can maintain the effect until the next day's hair washing, and does not give the hair after conditioning treatment a sticky feeling, A pleasant touch can be obtained.

The composition containing the component (A) and the component (B) can be formed under the production conditions described above, but in a state where the component (A) and the component (B) are uniformly mixed in advance, It is preferable to mix by heating under alkaline conditions. As alkaline conditions, although pH should just be larger than 7, it is preferable that it is pH 8-13, and the range of pH 10-12 is more preferable. By carrying out like this, the composite_body | complex of a component (A) and a component (B) can be formed more efficiently. Formation of the complex of component (A) and component (B) can be confirmed, for example, by the following method.
A small amount of the hair cosmetic composition is placed on a filter paper, washed with water and dried, and the infrared absorption spectrum of the obtained residue is measured. When the mixture of the component (A) and the component (B) is formed, a peak different from the component (A) and the component (B) is detected at a position of 1500 to 1600 cm ⁻¹ , for example.

  Specific examples of the method for producing a hair cosmetic composition containing the component (A) and the component (B) include the following methods. Water, the cationic polymer of component (A) and the fatty acid of component (B) are heated and stirred and mixed uniformly, and then a basic compound such as sodium hydroxide is added and mixed under heat under alkaline conditions. Since insoluble materials appear, after adjusting the pH by adding acids as necessary, after preparing an oil phase containing a cationic or anionic surfactant and a solvent, this oil phase is placed in the aqueous phase. Add and stir to emulsify. Subsequently, it can be produced by allowing to cool while stirring. The resulting composition can be used as a hair conditioner substrate or shampoo substrate.

  Next, a method for treating hair according to the present invention will be described. This method includes a step of applying the above-described hair cosmetic composition of the present invention to hair, and then a step of rinsing the hair using water.

  In the step of applying the hair cosmetic composition of the present invention to hair, the hair cosmetic composition of the present invention is applied to dry or wet hair. At this time, the hair cosmetic composition may be applied to the hair by hand, or the hair cosmetic composition may be applied to the hair via a tool such as a brush. Thereafter, the composition is swallowed with hands and tools to penetrate the interior or surface of the hair. The time is preferably within 15 minutes, more preferably from 30 seconds to 5 minutes. Next, the hair to which the hair cosmetic composition is applied is rinsed with water. Water temperature should just be the temperature which does not become a burden on a body, 15 to 50 degreeC is preferable and 25 to 45 degreeC is more preferable. The rinsing time is preferably 5 seconds to 3 minutes.

  As mentioned above, although embodiment of this invention was described, these are illustrations of this invention and various structures other than the above are also employable.

  The hair cosmetic compositions of Examples 1 to 18 and Comparative Examples 1 to 9 were prepared and evaluated by the following methods. The compositions and evaluation results of the hair cosmetic compositions of Examples 1 to 18 and Comparative Examples 1 to 9 are shown in Tables 1 to 3. Each component in a table | surface shows the mass%.

Example 1
In a 300 ml beaker, 171.1 g (85.55%) of ion-exchanged water as an aqueous phase, polydiallyldimethylammonium chloride (Mercoat 100, molecular weight 150,000, cation density 7.9 meq / g, manufactured by Nalco) 2.00 g (1. 00%) and 18-methyleicosanoic acid (2.00 g, 1.00%) were added and heated to 55 ° C. with stirring with a propeller. Thereafter, it was confirmed that there was no insoluble matter, and 0.10 g (0.05%) of sodium hydroxide was added and stirring was continued. After confirming the formation of a white insoluble material insoluble in water, 4.00 g (2.00%) of lactic acid (Musashino lactic acid 90, manufactured by Musashino Chemical Laboratory) was added. Then, 3.50 g (1.75%) of N, N-dimethyl-3-octadecyloxypromylamine (Farmin DM E-80, manufactured by Kao Corporation) and 10.70 g of stearyl alcohol (Calcol 8098: manufactured by Kao Corporation) ( 5.35%) and 6.0 g (3.0%) of dipropylene glycol (DPG-RF, manufactured by ADEKA) were uniformly dissolved at 80 ° C. and added to the aqueous phase for 10 minutes. The mixture was emulsified by stirring at 300 rpm. While stirring at 300 rpm, the mixture was allowed to cool to 35 ° C. or lower, and a fluid obtained by adding 0.60 g (0.3%) of a fragrance was used as a hair conditioner.

In addition, the fluid obtained in Example 1 was washed with water on a filter paper and dried, and the residue on the filter paper was measured with an infrared spectrophotometer (device name: Spectrum 400 FT-IR and FT-NIR Spectrometer; manufactured by Perkin Elmer). As shown in FIG. 1, a peak that was not detected by either polydiallyldimethylammonium chloride or 18-methyleicosanoic acid was detected at a position of 1560 cm ⁻¹ . In FIG. 1, “only component (A)” indicates an infrared absorption spectrum of only polydiallyldimethylammonium chloride, and “only component (B)” indicates an infrared absorption spectrum of only 18-methyleicosanoic acid. "Example 1" shows the infrared absorption spectrum of the residue treated as described above for Example 1, and "simple mixing" is a polydiallyldimethylammonium chloride and 18-methyleicosanoic acid 1: 1 shows an infrared absorption spectrum of a solid mixed at room temperature with 1. FIG.1 (b) expands the range of 1400-1800cm < ^-1 > about the infrared absorption spectrum shown to Fig.1 (a).

Example 2
Example 1 was repeated except that 1.00% 19-methyleicosanoic acid was used instead of 1.00% 18-methyleicosanoic acid.

Example 3
Example 1 was repeated except that 1.00% 16-methyloctadecanoic acid was used instead of 1.00% 18-methyleicosanoic acid.

Example 4
The same procedure as in Example 1 was conducted except that 1.00% lanolin fatty acid (18-MEA, acid value: 154, manufactured by Croda Japan) was used instead of 1.00% of 18-methyleicosanoic acid.

Example 5
Except for using 1.00% polydiallyldimethylammonium chloride (Mercoat 106, molecular weight 15,000, cation density 7.9 meq / g, manufactured by Nalco) instead of 1.00% polydimethyldiallylammonium chloride Same as Example 1.

Example 6
Instead of 1.00% polydiallyldimethylammonium chloride, 2.00% diallyldimethylammonium chloride / acrylic acid copolymer (Mercoat 280, molecular weight 450,000, cation density 6.1 meq / g, manufactured by Nalco) The procedure was the same as Example 1 except that 84.55% exchange water was used.

Example 7
Except for using 1.00% diallyldimethylammonium chloride / acrylic acid copolymer (Mercoat 295, molecular weight 190,000, cation density 7.7 meq / g, manufactured by Nalco) instead of 1.00% polydiallyldimethylammonium chloride Was the same as in Example 1.

Example 8
Example 1 except that 1.00% of hexadimethrin bromide (molecular weight: 5,000 to 10,000, cation density: 5.3 meq / g, manufactured by Nacalai Tesque) was used instead of 1.00% of polydiallyldimethylammonium chloride. The same was done.

Example 9
18-methyleicosanoic acid was changed to 1.00%, except that palmitic acid 0.8% and isostearic acid (isostearic acid EX, acid value: 193.8, manufactured by Higher Alcohol Industry Co., Ltd.) 0.2% were used. Same as Example 1.

Example 10
Example 9 was repeated except that 0.8% stearic acid (Lunac S98, manufactured by Kao Corporation) was used instead of 0.8% palmitic acid.

Example 11
Example 9 was repeated except that 0.5% behenic acid was used instead of 0.8% palmitic acid and 0.5% isostearic acid EX was used.

Example 12
Example 10 was repeated except that 0.6% stearic acid was used and 0.4% isostearic acid EX was used.

Example 13
The procedure was the same as Example 10 except that isostearic acid (isostearic acid T, acid value: 196.5, manufactured by NOF Corporation) was used instead of 0.2% isostearic acid EX.

Example 14
Except for using 1.00% polydiallyldimethylammonium chloride (Mercoat 106, molecular weight 15,000, cation density 7.9 meq / g, manufactured by Nalco) instead of 1.00% polydimethyldiallylammonium chloride Same as Example 10.

Example 15
Instead of 1.00% polydiallyldimethylammonium chloride, 2.00% diallyldimethylammonium chloride / acrylic acid copolymer (Mercoat 280, molecular weight 450,000, cation density 6.1 meq / g, manufactured by Nalco) Example 10 was repeated except that 84.55% exchange water was used.

Example 16
Except for using 1.00% diallyldimethylammonium chloride / acrylic acid copolymer (Mercoat 295, molecular weight 190,000, cation density 7.7 meq / g, manufactured by Nalco) instead of 1.00% polydiallyldimethylammonium chloride Were the same as in Example 10.

Example 17
Except for using 1.00% polydiallyldimethylammonium chloride 1.00% instead of hexadimethrin bromide (molecular weight 5,000 to 10,000, cation density 5.3 meq / g, manufactured by Nacalai Tesque), Example 10 and The same was done.

Example 18
In a 300 ml beaker, 171.2 g (85.6%) of ion-exchanged water as an aqueous phase, 2.00 g (1.00%) of polydimethyldiallylammonium chloride (Mercoat 100, manufactured by Nalco), lactic acid (Musashino lactic acid 90, Musashino Chemical) 4.00 g (2.00%) was added and heated to 55 ° C. with stirring with a propeller. Thereafter, 3.50 g (1.75%) of N, N-dimethyl-3-octadecyloxypromylamine (Farmin DM E-80, manufactured by Kao Corporation) and 10.70 g of stearyl alcohol (Calcoal 8098, manufactured by Kao Corporation) ( 5.35%), dipropylene glycol (DPG-RF, manufactured by ADEKA)) 6.0 g (3.0%), stearic acid 1.60 g (0.80%) (Lunac S98, manufactured by Kao Corporation), isostearin An oil phase composed of 0.40 g (0.20%) of acid (isostearic acid EX, manufactured by Higher Alcohol Industry Co., Ltd.) was uniformly dissolved at 80 ° C., then added to the aqueous phase and emulsified by stirring at 300 rpm for 10 minutes. . The mixture was allowed to cool to 35 ° C. or lower while stirring at 300 rpm, and 0.60 g (0.3%) of a fragrance was added to obtain a hair conditioner.

Comparative Example 1
The procedure was the same as Example 1 except that 18-methyleicosanoic acid was not used.

Comparative Example 2
The procedure was the same as Example 1 except that polydiallyldimethylammonium chloride was not used.

Comparative Example 3
Example 10 was repeated except that polydiallyldimethylammonium chloride was not used.

Comparative Example 4
Example 10 was repeated except that 1.0% of stearic acid was used and isostearic acid EX was not used.

Comparative Example 5
Example 10 was repeated except that 0.9% stearic acid and 0.1% isostearic acid EX were used.

Comparative Example 6
Example 10 was repeated except that 0.1% stearic acid was used and 0.9% isostearic acid EX was used.

Comparative Example 7
Ion exchange using 1.0% polydiallyldimethylammonium chloride and 3.0% diallyldimethylammonium chloride / acrylamide copolymer (Mercoat 550, molecular weight 1.6 million, cation density 3.4 meq / g, manufactured by Nalco) Example 1 was repeated except that 83.55% of water was used.

Comparative Example 8
Methacrylamidopropyltrimonium chloride / acrylic acid / acrylamide copolymer (Mercoat 2003, molecular weight 1,200,000, cation density 3.6 meq / g, manufactured by Nalco) 2.0% instead of polydiallyldimethylammonium chloride 1.0% The same procedure as in Example 1 was conducted except that 83.55% ion-exchanged water was used.

Comparative Example 9
Except for using 3.0% diallyldimethylammonium chloride / acrylic acid copolymer, 1.0% lauric acid instead of 18-methyleicosanoic acid, and 83.55% ion-exchanged water. Same as Example 1.

Evaluation method 1
The hair of a Japanese woman that has been treated once with straight perm and twice with bleach is treated as damaged hair, and a hair bundle of 20 g (length 15-20 cm, average diameter 80 μm) is treated by each of the following 5 panelists. The sensory evaluation was performed.
After applying 2 g of the conditioner shown in each of Tables 1 to 3 to a hair bundle washed with 2 g of standard shampoo having the following formulation, and thoroughly acclimatizing the entire hair (after about 30 seconds), about 30 seconds. After rinsing under running water at 40 ° C., towel drying was performed, and after sufficiently drying with a dryer, evaluation was performed in four stages after one day (24 hours). Evaluation was performed by five panelists, and the integrated value of the evaluation points was obtained.

・ Standard shampoo formulation (pH 7.0)
25% polyoxyethylene (2.5) lauryl ether sulfate sodium salt
62.0% by mass
Lauric acid diethanolamide 2.3% by mass
Edetate disodium 0.15% by mass
Sodium benzoate 0.5% by mass
Sodium chloride 0.8 mass%
75% phosphoric acid appropriate amount Fragrance, methylparaben appropriate amount Purified water remaining

Evaluation Criteria (1) Smoothness after 1 day 4: Very smooth 3: Smooth 2: Not very smooth 1: Not smooth

(2) Ease of hair grouping after 1 day 4: Very easy to unite 3: Easy to unite 2: Not easy to unite 1: Not easy to unite

(3) Cool feeling when touching hair after 1 day 4: Very cool 3: Cool 2: Not very cool 1: Not cool

(4) Ease of aligning hair after the lapse of one day 4: Very easy to align hair 3: Easy to align hair 2: Not easy to align hair 1: Not easy to align hair

Evaluation method 2
The hair of a Japanese woman that has been treated once with straight perm and twice with bleach is treated as damaged hair, and each 20 g (15 to 20 cm in length, average diameter 80 μm) of hair bundle is used with 2 g of standard shampoo having the above composition. 2g of the conditioner shown in Table 2 is applied to the washed hair bundle, and after fully acclimatizing the entire hair, it is rinsed under running water of about 40 ° C for about 30 seconds, then towel-dried and dried thoroughly with a dryer. I let you. The amount of heat transfer (qmax) shown below for dry hair was repeatedly measured 10 times, and the average value thereof was evaluated as a cool feeling.
Using a KEF-F7 finger robot thermolab (manufactured by Kato Tech Co., Ltd.) as a measuring machine, the measurement site (sensor) was brought into contact with the hair bundle, and the heat transfer amount qmax (mW / cm ² ) at that time was measured.
The amount of heat transfer was measured as follows.
H. Tanamachi, Temperature as a moisture cue in haptics on hair, Int. J. et al. Cos. Sci. , 2011. 33. According to the method described in 25-36, in a 20 ° C. and 40% RH environment, a temperature sensor unit covered with silicone rubber of KEF-F7 finger robot thermolab (manufactured by Kato Tech Co., Ltd.) on a hair bundle of about 20 g. It was warmed to 36 ° C., the same as the body temperature, and brought into contact. The heat of the temperature sensor moves to the hair bundle at the time of contact, and the heat transfer rate q is measured from the change in the heat signal at that time, and the peak value qmax is calculated. The larger the value, the higher the heat transfer speed, and the easier it is to get a cool feeling.

  As a reference example, the hair bundle of 20 g of damaged hair prepared in the above evaluation method 2 was towel-dried on the hair bundle washed with 2 g of the above standard shampoo, and dried sufficiently with a dryer. The amount of movement qmax was measured as described above.

From the results of Examples 1 to 18, the hair cosmetic composition of the present invention can maintain a smooth and coherent effect on the hair until the next day's shampooing, while further giving a cool feel to the hair. It was shown that the effect of facilitating the alignment was maintained, and the maximum value Q _max of the heat transfer speed was increased to give a cool feeling. Moreover, such an effect was seen notably in Examples 1-17. Moreover, as shown in Examples 1, 2, and 5, the component (A) can be further increased by a combination of polyquaternium-6 and the branched fatty acid of the component (B-1), and in particular, having 20 to 22 carbon atoms. The combination with branched fatty acids was particularly excellent. In addition, as shown in Examples 10 to 12, the combination using Polyquaternium-6 as the component (A) and Isostearic EX as the isostearic acid of the component (B-2) also showed excellent effects. . From the comparison with Comparative Examples 1-3, it is shown that such an effect is acquired by using a component (A) and a component (B) together, Especially about a component (B-2), it is a linear fatty acid. And isostearic acid in a specific range. Moreover, it was shown from the comparison with Comparative Examples 7 and 8 that it is an effect obtained by using a cationic polymer having a predetermined cation density.

Claims (7)

The following ingredients:
(A) a cationic polymer (B) a fatty acid (C) a cationic or anionic surfactant,
The cation density of the component (A) is 4 meq / g or more,
A hair cosmetic composition excluding two-component and three-component hair dye compositions, wherein the component (B) is selected from the following components (B-1) and (B-2);
(B-1) Branched fatty acid represented by the following general formula (1) (excluding isostearic acid),
[Wherein, R ¹ represents a methyl group or an ethyl group, and n represents an integer of 9 to 17. ]
(B-2) A mixed fatty acid of a linear fatty acid having 14 to 22 carbon atoms and isostearic acid, and a mass ratio of the linear fatty acid having 14 to 22 carbon atoms and isostearic acid in the mixed fatty acid (linear fatty acid) / Isostearic acid) is 0.25-4.   The hair cosmetic composition according to claim 1, wherein the component (A) has a weight average molecular weight (Mw) of 1,000 to 1,000,000. And Kachionmoru number _{M A} of the component (A), the molar ratio _M A / _{M B} of the carboxyl group molar number _{M B} of the component (B), is 0.25 to 4.0, according to claim 1 or 2 2. A hair cosmetic composition according to 1.   The hair cosmetic composition according to any one of claims 1 to 3, comprising a complex of the component (A) and the component (B).   The hair cosmetic composition according to any one of claims 1 to 4, wherein the component (A) comprises a quaternary ammonium salt. Applying the hair cosmetic composition according to any one of claims 1 to 5 to the hair;
After the step, rinsing the hair with water;
A method for treating hair, comprising: The step of mixing the component (A) cationic polymer and the component (B) fatty acid under heat under alkaline conditions and then further mixing the component (C) a cationic or anionic surfactant;
The cation density of the component (A) is 4 meq / g or more,
A method for producing a hair cosmetic composition , excluding two-component and three-component hair dye compositions, wherein the component (B) is selected from the following components (B-1) and (B-2) . ;
(B-1) Branched fatty acid represented by the following general formula (1) (excluding isostearic acid),
[Wherein, R ¹ represents a methyl group or an ethyl group, and n represents an integer of 9 to 17. ]
(B-2) A mixed fatty acid of a linear fatty acid having 14 to 22 carbon atoms and isostearic acid, and a mass ratio of the linear fatty acid having 14 to 22 carbon atoms and isostearic acid in the mixed fatty acid (linear fatty acid) / Isostearic acid) is 0.25-4.