Hair cosmetic

Abstract

An object of the present invention is to provide a hair cosmetic which has an appropriate viscosity and can continuously provide a feeling effect such as hair manageability, finger combability, and softness.SOLUTION: (A) contains (a1) a highly polymerized silicone having a mean polymerization degree of 2000 to 20000 and a silicone having a mean polymerization degree of less than 2000, and (B) contains (b1) a dicocoyldimethylammonium chloride or a three chain-type quaternary ammonium salt-type cationic surfactant, the (C) higher alcohols include (c1) higher alcohols that are liquid at 25 °C and have a branched structure, and higher alcohols other than the (c1) components.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a hair cosmetic for treatment. More specifically, the present invention relates to a hair cosmetic that is easy to apply to hair and provides a sustained treatment effect with a pleasant feel. [Background technology]

[0002] Hair conditioning can be adjusted using shampoos, conditioners, treatment products, etc. These products smooth the surface of the hair, resulting in easy combing, manageable hair, smooth texture, and gloss. Known examples of such hair cosmetics include hair cosmetics containing a dimer acid ester and an amino-modified silicone or a sulfonic acid-modified silicone (Patent Document 1).

[0003] Furthermore, Patent Document 2 discloses a hair treatment agent containing dimer dilinoleyl dimer dilinoleate, an N-acylamino acid ester, and an ester of a fatty acid and cholesterol. This hair treatment agent improves poor hair manageability, such as hair ends that turn outward from the face. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-213163 [Patent Document 2] Japanese Patent Application Laid-Open No. 2012-087081 Summary of the Invention [Problem to be solved by the invention]

[0005] When high-polymerized silicone is blended into hair cosmetics for treatment, it improves the durability and manageability of the hair, but it also causes problems of poor spreadability and poor application. Attempts to solve this problem have been made by adjusting the amounts of other ingredients, but it has not been possible to obtain a hair cosmetic that has excellent application properties while maintaining the feel of hair manageability, ease of running fingers through the hair, and softness, as well as their durability.

[0006] Therefore, an object of the present invention is to provide a hair cosmetic composition that has excellent spreadability and provides lasting tactile effects such as manageability, ease of running fingers through hair, and softness. [Means for solving the problem]

[0007] As a result of extensive research into the above-mentioned problems, the inventors have found that by blending a di- or tri-chain quaternary ammonium salt cationic surfactant and a higher alcohol having a branched structure that is liquid at 25°C in a specific ratio, it is possible to obtain a treatment effect that is excellent in application and that lasts in terms of hair manageability, ease of running fingers through, and softness to the touch, and have completed the present invention. That is, the present invention relates to the following hair cosmetic composition.

[0008] The hair cosmetic of the present invention is a hair treatment cosmetic containing (A) a silicone, (B) a cationic surfactant, and (C) a higher alcohol, wherein the (A) silicone contains (a1) a highly polymerized silicone having an average degree of polymerization of 2,000 to 20,000, the (B) cationic surfactant contains (b1) a two-chain or three-chain quaternary ammonium salt cationic surfactant, and the (C) higher alcohol contains (c1) a higher alcohol having a branched structure that is liquid at 25°C, and the ratio of the sum of the content of the (b1) component and the content of the (c1) component to the content of the (a1) component ((b1+c1) / a1) is 1 to 10. This hair cosmetic composition can provide a sustained, favorable treatment effect in terms of hair manageability, ease of running fingers through the hair, and softness to the touch, while maintaining excellent applicability. Furthermore, according to the hair cosmetic of the present invention, even hair cosmetics containing highly polymerized silicone can be reduced to an appropriate viscosity, making it possible to discharge the hair cosmetic from a pump or a tube, and providing pump-type and tube-type products.

[0009] Furthermore, according to one embodiment of the hair cosmetic of the present invention, the ratio ((b1+c1) / (B+C)) of the sum of the content of the component (b1) and the content of the component (c1) to the sum of the total content of the component (B) and the total content of the component (C) is 0.25 to 1.0. This feature allows the effect of the present invention to be more effectively exhibited, that is, to continuously obtain a good treatment effect in terms of hair manageability, ease of running fingers through the hair, and softness to the touch, while maintaining excellent applicability.

[0010] According to one embodiment of the hair cosmetic composition of the present invention, the composition further comprises (d1) an ester compound having a viscosity at 25°C of 1000 mPa·s or more. This feature allows the effect of the present invention to be more effectively exhibited, that is, to maintain excellent applicability while also providing a sustained good treatment effect in terms of hair manageability and softness.

[0011] Furthermore, according to one embodiment of the hair cosmetic of the present invention, the ratio ((b1+c1) / (a1+d1)) of the sum of the content of the component (b1) and the content of the component (c1) to the sum of the content of the component (a1) and the content of the component (d1) is 1.0 to 3.0. This feature allows the effect of the present invention to be more effectively exhibited, that is, to continuously obtain a good treatment effect in terms of hair manageability, ease of running fingers through the hair, and softness to the touch, while maintaining excellent applicability. [Effects of the Invention]

[0012] According to the present invention, it is possible to provide a hair cosmetic composition that has excellent spreadability and provides lasting tactile effects such as manageability, ease of running fingers through hair, and softness. DETAILED DESCRIPTION OF THE INVENTION

[0013] Next, the present invention will be described, including the best mode for carrying out the invention. [Hair cosmetics] The hair cosmetic of the present invention is a hair treatment cosmetic containing (A) a silicone, (B) a cationic surfactant, and (C) a higher alcohol, wherein the (A) silicone contains (a1) a highly polymerized silicone having an average degree of polymerization of 2,000 to 20,000, the (B) cationic surfactant contains (b1) a two-chain or three-chain quaternary ammonium salt cationic surfactant, and the (C) higher alcohol contains (c1) a higher alcohol having a branched structure that is liquid at 25°C, and the ratio of the sum of the content of the (b1) component and the content of the (c1) component to the content of the (a1) component ((b1+c1) / a1) is 1 to 10.

[0014] The hair cosmetic composition of the present invention is used for the purpose of treating hair, etc. When the hair cosmetic composition of the present invention is applied to hair, a treatment effect is obtained, and tactile effects such as manageability, ease of running fingers through, and softness are continuously obtained. Furthermore, the hair cosmetic composition of the present invention is excellent in terms of ease of spreading when applied to hair.

[0015] Furthermore, the viscosity of the hair cosmetic composition of the present invention can be reduced to an appropriate level even when the hair cosmetic composition contains a highly polymerized silicone, which allows it to be discharged from a pump or tube, making it possible to provide pump-type and tube-type products.

[0016] The viscosity of the hair cosmetic composition of the present invention at 25°C is not particularly limited, but is, for example, 5000 to 40000 mPa·s. The lower limit of the viscosity of the hair cosmetic composition at 25°C is preferably 10000 mPa·s or more, more preferably 12000 mPa·s or more, and even more preferably 15000 mPa·s or more. The upper limit of the viscosity of the hair cosmetic composition at 25°C is preferably 35000 mPa·s or less, more preferably 32000 mPa·s or less, and even more preferably 29000 mPa·s or less.

[0017] In this specification, viscosity is measured using a Brookfield viscometer (TV-10 model manufactured by Toki Sangyo Co., Ltd.) under the following conditions: temperature is adjusted to 25°C; if the viscosity is less than 5000 mPa·s, measurement is performed using a No. 3 rotor at 12 rpm for 1 minute; if the viscosity is 5000 to 50,000 mPa·s, measurement is performed using a No. 4 rotor at 12 rpm for 1 minute; and if the viscosity is greater than 50,000 mPa·s, measurement is performed using a No. 4 rotor at 6 rpm for 1 minute.

[0018] The hair cosmetic composition of the present invention can be used as a conventional one-component treatment agent, a multi-component treatment agent, etc. In the case of a multi-component treatment agent, it is preferable that the treatment agent be the last one to be applied to the hair. By applying it to the hair last, the effect of the treatment can be more sustained.

[0019] In order to make the hair cosmetic composition of the present invention act more effectively, dirt on the hair surface may be removed with a hair detergent or the hair may be pretreated to make it more compatible with the hair cosmetic composition of the present invention.

[0020] Next, each component used in the hair cosmetic composition of the present invention will be described in detail. <(A) Silicone> Silicone protects the hair cuticle and reduces friction between hair strands. Silicones are synthetic polymers in which silicon and oxygen atoms with organic groups are alternately linked by chemical bonds. Examples include dimethylpolysiloxane (INCI name: dimethicone), dimethylpolysiloxane with hydroxyl end groups (INCI name: dimethiconol), methylphenylpolysiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, polyether-modified silicone, amino-modified silicone, betaine-modified silicone, alkyl-modified silicone, alkoxy-modified silicone, mercapto-modified silicone, carboxy-modified silicone, and fluorine-modified silicone.

[0021] Of the above, examples of amino-modified silicones include aminopropylmethylsiloxane-dimethylsiloxane copolymer (INCI name: aminopropyl dimethicone), aminoethylaminopropylsiloxane-dimethylsiloxane copolymer (INCI name: amodimethicone), and aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer (INCI name: trimethylsilylamodimethicone).

[0022] In hair cosmetics, the silicone (A) is preferably dimethylpolysiloxane (INCI name: dimethicone), dimethylpolysiloxane having a hydroxyl terminal group (INCI name: dimethiconol), or amino-modified silicone.

[0023] The content of (A) silicone in the hair cosmetic is not particularly limited, but is, for example, 0.1 to 30% by mass. The lower limit of the content of (A) silicone is preferably 2% by mass or more, more preferably 5% by mass or more, even more preferably 7% by mass or more, and particularly preferably 9% by mass or more. The upper limit of the content of silicone is, for example, 20% by mass or less, preferably 15% by mass or less. By setting the content of silicone to 2% by mass or more, the effect of continuously obtaining tactile effects such as hair manageability and smoothness of hair runny fingers can be further improved.

[0024] ((a1) Highly polymerized silicone with an average degree of polymerization of 2000 to 20000) The hair cosmetic composition of the present invention contains (a1) a highly polymerized silicone with an average degree of polymerization of 2,000 to 20,000. From the viewpoint of manageability and durability, the lower limit of the average degree of polymerization is preferably 4,000 or more. The content of component (a1) is not particularly limited, but is preferably 0.4% by mass or more. When it is 0.4% by mass or more, the manageability of hair and the durability of the treatment effect are improved.

[0025] The lower limit of the content of component (a1) is preferably 1% by mass or more, and even more preferably 1.5% by mass or more, from the viewpoints of improving hair manageability, ease of running fingers through, and duration of treatment effect. The upper limit of the content of component (a1) is preferably 5% by mass or less, and more preferably 2.5% by mass or less, from the viewpoints of improving ease of spreading the agent and softness of the hair.

[0026] Examples of raw materials used for component (a1) of the present invention include "BELSIL GB 2170," "BELSIL GB 5150," "BELSIL DM 6113E," and "BELSIL DM 3096" (all manufactured by Wacker Asahi Kasei Silicones Co., Ltd.), "KF-8020," and "KF-9030" (all manufactured by Shin-Etsu Chemical Co., Ltd.), "XF49-B7083," and "SILSOFT B3020" (all manufactured by Momentive Performance Materials Japan, Inc.), and "DOWSIL BY 11-031" and "DOWSIL BY 25-320" (all manufactured by Dow-Toray Industries, Inc.).

[0027] (Silicone with an average degree of polymerization of less than 2000) The hair cosmetic composition of the present invention preferably also contains a silicone having an average degree of polymerization of less than 2000. By incorporating a silicone having an average degree of polymerization of less than 2000, the feel of hair, such as smoothness of running fingers through the hair, is improved. Examples of silicone raw materials having an average degree of polymerization of less than 2000 include "KF-96L-1.5cs", "KF-96L-2cs", "KF-96A-5cs", "KF-96A-6cs", "KF-96A-10cs", "KF-96A-20cs", "KF-96A-30cs", "KF-96A-50cs", "KF-96A-100cs", "KF-96A-200cs", "KF-96A-300cs", "KF-96A-350cs", "KF-96A-500cs", and "KF-96-1.00cs". 0cs", "KF-96-3,000cs", "KF-96A-5,000cs", "KF-96H-6,000cs", "KF-96H-10,000cs", "KF-96H-12,500cs", "KF-96H-30,000cs", "KF-96H-50,000cs", "KF-96H-60,000cs", "KF-96H-100,000cs", "KF-96H-300,000cs", and "KF-96H-500,000cs" (all manufactured by Shin-Etsu Chemical Co., Ltd.).

[0028] The content of silicones having an average degree of polymerization of less than 2000 is not particularly limited, but is, for example, 0.1 to 15% by mass. The lower limit of the content of silicones having an average degree of polymerization of less than 2000 is preferably 1% by mass or more, more preferably 2.5% by mass or more, and even more preferably 5% by mass or more. The upper limit of the content of silicones having an average degree of polymerization of less than 2000 is preferably 10% by mass or less.

[0029] <(B) Cationic Surfactant> Examples of cationic surfactants include alkyl quaternary ammonium salts such as monoalkyl quaternary ammonium salts, benzalkonium quaternary ammonium salts, and monoalkyl ether quaternary ammonium salts; amine salts such as alkylamine salts, fatty acid amide amine salts, ester-containing tertiary amine salts, and Arcobel tertiary amine salts; cyclic quaternary ammonium salts such as alkylpyridinium salts and alkylisoquinolium salts; and benzethonium chloride.

[0030] ((b1) Two- or three-chain quaternary ammonium salt cationic surfactant) The hair cosmetic of the present invention contains a di- or tri-chain quaternary ammonium salt as a cationic surfactant. Without component (b1), the viscosity of the hair cosmetic cannot be reduced, resulting in insufficient spreadability. This makes it difficult to apply the hair cosmetic evenly. Furthermore, the effect of softening hair cannot be achieved.

[0031] The two-chain or three-chain quaternary ammonium salt cationic surfactant is a quaternary ammonium salt having two or three hydrocarbon chains attached to a nitrogen atom, and is a compound represented by the following chemical formula (1). The hydrocarbon chain may have a saturated or unsaturated bond and may contain atoms other than carbon atoms. Examples of atoms other than carbon atoms include nitrogen atoms, oxygen atoms, sulfur atoms, phosphorus atoms, and silicon atoms.

[0032] [ka] [R 1 : CH3 or a saturated or unsaturated hydrocarbon chain having 2 to 22 carbon atoms. 2 , R 3 : Independently of each other, saturated or unsaturated hydrocarbon chains having 2 to 22 carbon atoms. 1 , R 2 , R 3 The hydrocarbon chain may contain N, O, S, P, and Si.]

[0033] R 1 , R2 , R 3 Examples of the hydrocarbon chain include a linear or branched alkyl group having 2 to 22 carbon atoms, an alkenyl group, an aryl group such as a phenyl group, a hydroxyalkyl group, an amidoalkyl group, a cyanoalkyl group, an alkoxyalkyl group, or a carboalkoxyalkyl group.

[0034] The double-chain or triple-chain quaternary ammonium salt cationic surfactant is preferably a dialkyl quaternary ammonium salt. Examples of dialkyl quaternary ammonium salts include dialkyl(12-15)dimethylammonium chloride, dialkyl(12-18)dimethylammonium chloride, dialkyl(14-18)dimethylammonium chloride, dicocoyl dimethylammonium chloride, dicetyl dimethylammonium chloride, distearyl dimethylammonium chloride, and isostearyl lauryl dimethylammonium chloride. Dicocoyl dimethylammonium chloride and distearyl dimethylammonium chloride are preferred, with dicocoyl dimethylammonium chloride being more preferred. The use of dicocoyl dimethylammonium chloride further improves the ease of spreading the agent and the effect of softening hair.

[0035] Other examples of the three-chain quaternary ammonium salt cationic surfactant include dicocoyl ethyl hydroxyethylmonium methosulfate, dipalmitoyl ethyl hydroxyethylmonium methosulfate, and distearoyl ethyl hydroxyethylmonium methosulfate.

[0036] The content of component (b1) in the hair cosmetic is not particularly limited, but is, for example, 0.1 to 10% by mass. From the viewpoints of ease of spreadability and softness of the agent, the lower limit of the content of component (b1) is preferably 0.2% by mass or more, more preferably 0.4% by mass or more, and even more preferably 0.6% by mass or more. From the viewpoint of formulation stability, the upper limit of the content of component (b1) is preferably 5% by mass or less, more preferably 4% by mass or less, even more preferably 3% by mass or less, and particularly preferably 2.5% by mass or less.

[0037] (Monoalkyl quaternary ammonium salt) Examples of monoalkyl quaternary ammonium salts include lauryltrimethylammonium chloride, lauryltrimethylammonium bromide, alkyl(16,18)trimethylammonium chloride, cetyltrimethylammonium chloride, cetyltrimethylammonium bromide, cetyltrimethylammonium saccharin, stearyltrimethylammonium chloride, stearyltrimethylammonium bromide, behenyltrimethylammonium chloride, stearyltrimethylammonium saccharin, alkyl(28)trimethylammonium chloride, dipolyoxyethylene(2)oleylmethylammonium chloride, dipolyoxyethylenestearylmethylammonium chloride, polyoxyethylene(1)polyoxypolypropylene(25)diethylmethylammonium chloride, polyoxypolypropylenemethyldiethylammonium chloride, methacryloyloxyethyltrimethylammonium chloride, and behenyltrimethylammonium methylsulfate. Stearyltrimethylammonium chloride and behenyltrimethylammonium chloride are preferred.

[0038] The total content of (B) cationic surfactant in the hair cosmetic is not particularly limited, but is, for example, 0.01 to 30% by mass. From the viewpoints of manageability, smoothness, long-lasting properties, and stability, the lower limit of the total content of (B) cationic surfactant is preferably 2% by mass or more, more preferably 2.5% by mass or more, and even more preferably 3% by mass or more. From the viewpoint of ease of spreadability of the agent, the upper limit of the total content of (B) cationic surfactant is preferably 20% by mass or less, more preferably 10% by mass or less, even more preferably 8% by mass or less, and particularly preferably 5% by mass or less.

[0039] <(C) Higher Alcohol> Examples of higher alcohols include cetyl alcohol (cetanol), stearyl alcohol, cetostearyl alcohol, oleyl alcohol, linoleyl alcohol, linolenyl alcohol, arachyl alcohol, behenyl alcohol, lauryl alcohol, myristyl alcohol, 2-hexyldecanol, isostearyl alcohol, 2-octyldodecanol, decyltetradecanol, phytosterol, phytostanol, cholesterol, cholestanol, lanosterol, and ergosterol.

[0040] ((c1) Higher alcohol with a branched structure that is liquid at 25°C) The hair cosmetic composition of the present invention is characterized by containing (c1) a higher alcohol having a branched structure that is liquid at 25°C. Decyltetradecanol, hexyldecanol, octyldodecanol, and isostearyl alcohol are preferred, and octyldodecanol and isostearyl alcohol are more preferred. Without component (c1), the viscosity of the hair cosmetic composition cannot be reduced, resulting in insufficient spreadability of the composition. As a result, the hair cosmetic composition cannot be applied uniformly. Furthermore, it is important that component (c1) has a branched structure; linear higher alcohols that are liquid at 25°C do not achieve the effects of the present invention, such as the spreadability, smoothness, and softness of the composition.

[0041] In the characteristics of component (c1), "liquid at 25°C" means that the component has fluidity when kept at 25°C for 24 hours. Specifically, the viscosity at 25°C is 100 mPa·s or less.

[0042] The content of component (c1) in the hair cosmetic is not particularly limited, but from the viewpoints of ease of spreadability, smoothness of the agent, and softness, it is, for example, 0.1 to 30% by mass. The lower limit of the content of component (c1) is preferably 0.2% by mass or more, more preferably 0.4% by mass or more, even more preferably 1% by mass or more, and particularly preferably 2% by mass or more. Furthermore, from the viewpoint of formulation stability, the upper limit of the content of component (c1) is preferably 20% by mass or less, more preferably 10% by mass or less, even more preferably 8% by mass or less, and particularly preferably 5% by mass or less.

[0043] The total content of (C) higher alcohols in the hair cosmetic is not particularly limited, but is, for example, 0.01 to 30% by mass. From the viewpoints of manageability, smoothness, and durability, the lower limit of the total content of (C) higher alcohols is preferably 4% by mass or more, more preferably 5% by mass or more, even more preferably 6% by mass or more, and particularly preferably 7% by mass or more. From the viewpoint of ease of spreadability of the agent, the upper limit of the total content of (C) higher alcohols is preferably 20% by mass or less, more preferably 15% by mass or less, and even more preferably 12% by mass or less.

[0044] <(D) Ester Compound> Ester compounds are compounds obtained by dehydration reaction of fatty acids with alcohols, that is, esters and waxes. Examples of esters include diisopropyl adipate, 2-hexyldecyl adipate, isopropyl myristate, myristyl myristate, cetyl octanoate, cetyl isooctanoate, isononyl isononanoate, diisopropyl sebacate, isopropyl palmitate, 2-ethylhexyl palmitate, cetyl ethylhexanoate, butyl stearate, isocetyl isostearate, hexyl laurate, decyl oleate, fatty acids (C10-30) (cholesteryl / lanosteryl), lauryl lactate, octyldodecyl lactate, lanolin acetate, and dipentaerythritol fatty acid esters. , N-alkyl glycol monoisostearate, octyldodecyl myristate, glyceryl tri-2-ethylhexanoate, pentaerythritol tetra-2-ethylhexanoate, pentaerythritol tetraisostearate, lanolin derivatives, dilinoleyl dimer dilinoleate, di(isostearyl / phytosteryl) dimer dilinoleate, (phytosteryl / isostearyl / cetyl / stearyl / behenyl) dimer dilinoleate, dimer dilinoleyl bis(behenyl / isostearyl / phytosteryl) dimer dilinoleate, hydrogenated castor oil isostearate, etc.

[0045] Waxes are esters of higher fatty acids and higher alcohols, and examples include beeswax, candelilla wax, carnauba wax, jojoba oil, lanolin, spermaceti, rice bran wax, sugarcane wax, palm wax, montan wax, cotton wax, bayberry wax, privet wax, kapok wax, and shellac wax.

[0046] ((d1) Ester compounds with a viscosity of 1000 mPa·s or more at 25°C) The hair cosmetic composition of the present invention preferably contains an ester compound having a viscosity of 1000 mPa·s or more at 25° C. Specific examples of ester compounds having a viscosity of 1000 mPa·s or more at 25° C. include dilinoleyl dimer dilinoleate, di(isostearyl / phytosteryl) dimer dilinoleate, dipentaerythrityl hexaisononanoate, polyglyceryl-2 isostearate, polyglyceryl-3 diisostearate, diisostearyl malate, phytosteryl macadamiate, cholesteryl lanolinate, dipentaerythrityl hexa(hydroxystearate / stearate / rosinate), and dipentaerythrityl tetra(hydroxystearate / isostearate). More preferred are dimer dilinoleate esters having a viscosity of 1000 mPa·s or more at 25°C, and particularly preferred are dilinoleyl dimer dilinoleate and di(isostearyl / phytosteryl) dimer dilinoleate, each having a viscosity of 1000 mPa·s or more at 25°C.

[0047] The ester compound with a viscosity of 1000 mPa·s or more at 25°C is an ingredient that improves the application of hair cosmetics, and the inclusion of ingredient (d1) provides an even better treatment effect in terms of feel, such as softness and manageability, and also improves the durability of the treatment effect.

[0048] The lower limit of the viscosity of the ester compound of the present invention at 25° C. is preferably 1200 mPa s or more, more preferably 1500 mPa s or more, and even more preferably 1800 mPa s or more. The state of the ester compound at 25° C. is not particularly limited, but is preferably a liquid or paste, more preferably a liquid.

[0049] The content of component (d1) in the hair cosmetic is not particularly limited, but is, for example, 0.1 to 15% by mass. The lower limit of the content of component (d1) is preferably 0.3% by mass or more, more preferably 0.5% by mass or more, and even more preferably 1% by mass or more. The upper limit of the content of component (d1) is preferably 10% by mass or less, more preferably 8% by mass or less, and even more preferably 5% by mass or less.

[0050] The total content of (D) ester compounds in the hair cosmetic is not particularly limited, but is, for example, 0.1 to 15% by mass. The lower limit of the total content of (D) ester compounds is preferably 0.3% by mass or more, more preferably 0.5% by mass or more, and even more preferably 1% by mass or more. The upper limit of the total content of (D) ester compounds is preferably 10% by mass or less, more preferably 8% by mass or less, and even more preferably 5% by mass or less.

[0051] <Relationship of each ingredient content> ((b1+c1) / (B+C)) The ratio ((b1+c1) / (B+C)) of the sum of the content of the component (b1) and the content of the component (c1) to the sum of the total content of the component (B) and the total content of the component (C) in the hair cosmetic composition is not particularly limited, but is, for example, 0.1 to 1.0. The lower limit of "(b1+c1) / (B+C)" is preferably 0.2 or more, more preferably 0.25 or more, and even more preferably 0.29 or more. By adjusting it to this range, the ease of spreading the agent and the softness of the hair are improved.

[0052] ((b1+c1) / a1) The ratio ((b1+c1) / a1) of the sum of the contents of the components (b1) and (c1) in the hair cosmetic to the content of the component (a1) is not particularly limited, but is, for example, 0.01 to 7. The lower limit of "(b1+c1) / a1" is preferably 0.1 or more, and more preferably 2 or more. The upper limit of "(b1+c1) / a1" is preferably 6 or less, and more preferably 5 or less.

[0053] ((b1+c1) / A) The ratio ((b1+c1) / A) of the sum of the contents of the components (b1) and (c1) in the hair cosmetic to the total content of the component (A) is not particularly limited, but is, for example, 0.1 to 1.5. The lower limit of "(b1+c1) / A" is preferably 0.2 or more, and more preferably 0.3 or more. The upper limit of "(b1+c1) / A" is preferably 1.0 or less, and more preferably 0.75 or less.

[0054] ((b1+c1) / (a1+d1)) The ratio ((b1+c1) / (a1+d1)) of the sum of the contents of the components (b1) and (c1) in the hair cosmetic to the sum of the contents of the components (a1) and (d1) is not particularly limited, but is, for example, 0.4 to 4.0. The lower limit of "(b1+c1) / (a1+d1)" is preferably 0.6 or more, and more preferably 1.0 or more. The upper limit of "(b1+c1) / (a1+d1)" is preferably 3.0 or less, more preferably 2.0 or less, and even more preferably 1.5 or less.

[0055] (a1 / A) The ratio (a1 / A) of the content of component (a1) to the total content of component (A) in the hair cosmetic is not particularly limited, but is, for example, 0.05 to 1. The lower limit of "a1 / A" is preferably 0.1 or more. The upper limit of "a1 / A" is preferably 0.8 or less, more preferably 0.5 or less, and even more preferably 0.3 or less. Adjusting the ratio within this range improves the feel of the hair (softness, manageability, and ease of running fingers through it).

[0056] (b1 / B) The ratio (b1 / B) of the content of component (b1) to the total content of component (B) in the hair cosmetic is not particularly limited, but is, for example, 0.1 to 1. The lower limit of "b1 / B" is preferably 0.12 or more, and more preferably 0.15 or more. The upper limit of "b1 / B" is preferably 0.8 or less, more preferably 0.6 or less, and even more preferably 0.4 or less. Adjusting the ratio within this range improves the feel of the hair (softness, manageability, and ease of running fingers through it).

[0057] (B+C) The sum (B+C) of the total content of the component (B) and the total content of the component (C) in the hair cosmetic is not particularly limited, but is, for example, 1 to 25% by mass. The lower limit of "B+C" is preferably 3% by mass or more, more preferably 6.5% by mass or more, and even more preferably 12% by mass or more. The upper limit of "B+C" is preferably 20% by mass or less, and more preferably 15% by mass or less. Adjusting the ratio within this range provides the effects of excellent emulsion stability and ease of spread of the hair cosmetic composition, as well as improved manageability and feel when run through the hair.

[0058] (c1 / C) The ratio (c1 / C) of the content of component (c1) to the total content of component (C) in the hair cosmetic is not particularly limited, but is, for example, 0.1 to 1. The lower limit of "c1 / C" is preferably 0.2 or more, and more preferably 0.3 or more. The upper limit of "c1 / C" is preferably 0.8 or less, more preferably 0.6 or less, and even more preferably 0.4 or less. Adjusting the ratio within this range improves the feel of the hair (softness, manageability, and ease of running fingers through it).

[0059] <Other ingredients> In addition to the above-mentioned components, the hair cosmetic composition of the present invention may contain other components as needed. Examples of the other components include nonionic surfactants, anionic surfactants, amphoteric surfactants, oily components other than components (A), (C), and (D), polyhydric alcohols, purified water and other water, solvents, polymeric compounds, sugars, preservatives, chelating agents, stabilizers, pH adjusters, plant extracts, herbal extracts, vitamins, fragrances, antioxidants, and ultraviolet absorbers. These other components may be used alone or in combination of two or more.

[0060] (nonionic surfactant) Examples of nonionic surfactants include polyoxyethylene alkyl ethers, polyoxyethylene alkylphenyl ethers, polyoxyethylene polyoxypropylene alkyl ethers, polyoxyethylene fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyethylene sorbitol tetrafatty acid esters, polyoxyethylene phytosterols, glycerin fatty acid esters, polyglycerin fatty acid esters, sucrose fatty acid esters, alkyl polyglucosides, N-alkyldimethylamine oxides, etc. Preferred are polyoxyethylene sorbitan fatty acid esters, polyglycerin fatty acid esters, polyoxyethylene sorbitol tetrafatty acid esters, polyoxyethylene alkyl ethers, and polyoxyethylene polyoxypropylene alkyl ethers, and more preferred are polyoxyethylene sorbitan fatty acid esters, polyglycerin fatty acid esters, and polyoxyethylene sorbitol tetrafatty acid esters.

[0061] (anionic surfactants) Examples of anionic surfactants include fatty acid salts, metal soaps, polyoxyethylene alkyl ether carboxylates, acyl lactates, N-acyl sarcosines, N-acyl glutamates, N-acyl methyl alanines, N-acyl methyl taurines, alkanesulfonates, α-olefin sulfonates, α-sulfofatty acid methyl esters, alkyl sulfosuccinates, acyl isethionates, alkyl sulfates, polyoxyethylene alkyl ether sulfates, fatty acid alkanolamide sulfates, monoacyl glycerol sulfates, monoalkyl phosphates, and polyoxyethylene alkyl ether phosphates. The counter ion of the anionic group of these surfactants may be, for example, sodium ions, potassium ions, or triethanolamine. Preferred is N-acyl methyl taurine salt.

[0062] More specific examples include sodium lauryl sulfate, sodium myristyl sulfate, potassium lauryl sulfate, ammonium lauryl sulfate, triethanolamine lauryl sulfate, cetyl sulfate, sodium stearyl sulfate, polyoxyethylene lauryl ether sodium sulfate, sodium polyoxyethylene lauryl ether acetate, triethanolamine polyoxyethylene lauryl ether sulfate, ammonium polyoxyethylene lauryl ether sulfate, sodium polyoxyethylene stearyl ether sulfate, sodium coconut oil fatty acid methyl taurate, sodium stearoyl methyl taurate, triethanolamine dodecylbenzenesulfonate, sodium tetradecenesulfonate, sodium lauryl phosphate, polyoxyethylene lauryl ether phosphate and salts thereof, N-lauroyl glutamates (such as sodium lauroyl glutamate), N-lauroylmethyl-β-alanine salts, N-acylglycine salts, N-acyl glutamates, higher fatty acids such as lauric acid and myristic acid, and salts of these higher fatty acids, and one or more of these may be used. Particularly preferred is coconut oil fatty acid methyl taurate sodium (cocoyl methyl taurate Na).

[0063] (Amphoteric surfactant) Amphoteric surfactants are broadly classified into amino acid type amphoteric surfactants and betaine type amphoteric surfactants. Specific examples of amino acid type amphoteric surfactants include N-lauroyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine sodium (sodium lauroamphoacetate), 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine (sodium cocoamphoacetate), undecylhydroxyethylimidazolinium betaine sodium, alkyldiaminoethylglycine hydrochloride, N-coconut oil fatty acid acyl-N'-carboxyethyl-N'-hydroxyethylethylenediamine sodium, N-coconut oil fatty acid acyl-N'-carboxyethoxyethylenediamine sodium, and N-coconut oil fatty acid acyl-N'-carboxyethoxyethylenediamine sodium. Glycine-type amphoteric surfactants such as N-coconut oil fatty acid acyl-N'-carboxymethoxyethyl-N'-carboxymethylethylenediamine disodium, lauryl diaminoethylglycinate sodium, and palm oil fatty acid acyl-N-carboxyethyl-N-hydroxyethylethylenediamine sodium; aminopropionic acid-type amphoteric surfactants such as sodium lauryl aminopropionate, sodium lauryl aminodipropionate, and triethanolamine lauryl aminopropionate; and the like. Specific examples of betaine-type amphoteric surfactants include aminoacetic acid betaine-type amphoteric surfactants such as coconut oil alkyl betaine, lauryl dimethyl aminoacetic acid betaine, myristyl dimethyl aminoacetic acid betaine, stearyl dimethyl aminoacetic acid betaine, sodium stearyl dimethyl betaine, coconut oil fatty acid amidopropyl betaine, palm oil fatty acid amidopropyl betaine, lauric acid amidopropyl betaine, ricinoleic acid amidopropyl betaine, and stearyl dihydroxyethyl betaine; and sulfobetaine-type amphoteric surfactants such as lauryl hydroxysulfobetaine.

[0064] (Oily ingredients) Examples of oily components include fats and oils, hydrocarbons, higher fatty acids, alkyl glyceryl ethers, fluorinated oils, etc. One or more of these oily components can be selected and used.

[0065] The fats and oils are triglycerides, i.e. triesters of fatty acids and glycerin. Examples include olive oil, rosehip oil, camellia oil, shea butter, macadamia nut oil, almond oil, tea seed oil, camellia oil, safflower oil, sunflower oil, soybean oil, cottonseed oil, sesame oil, beef tallow, cocoa butter, corn oil, peanut oil, rapeseed oil, rice bran oil, rice germ oil, wheat germ oil, Job's tears oil, grape seed oil, avocado oil, carrot oil, castor oil, linseed oil, coconut oil, mink oil, egg yolk oil, etc.

[0066] Hydrocarbons are compounds consisting of carbon and hydrogen, such as liquid paraffin, paraffin, microcrystalline wax, petrolatum, isoparaffins, ozokerite, ceresin, polyethylene, α-olefin oligomer, polybutene, synthetic squalane, squalene, hydrogenated squalane, limonene, and turpentine.

[0067] Examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, isostearic acid, hydroxystearic acid, 12-hydroxystearic acid, oleic acid, undecylenic acid, linoleic acid, ricinoleic acid, and lanolin fatty acid.

[0068] Examples of alkyl glyceryl ethers include batyl alcohol, chimyl alcohol, selachyl alcohol, and isostearyl glyceryl ether.

[0069] (Polyhydric alcohol) Examples of polyhydric alcohols include glycols and glycerins. Examples of glycols include ethylene glycol, polyethylene glycol, highly polymerized polyethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, isoprene glycol, and 1,3-butylene glycol. Examples of glycerins include glycerin, diglycerin, and polyglycerin.

[0070] (solvent) Examples of the solvent include organic solvents. Examples of the organic solvent include ethanol, isopropanol, benzyl alcohol, benzyloxyethanol, etc. These solvents may be used alone or in combination of two or more.

[0071] (polymer compound) Examples of polymer compounds include nonionic polymers, anionic polymers, cationic polymers, and amphoteric polymers, and the weight-average molecular weight of the polymer compounds can be 100,000 or more.

[0072] Examples of nonionic polymers include hydroxyethyl cellulose, hydroxypropyl methyl cellulose, hydroxypropyl cellulose, methyl cellulose, dextrin, galactan, pullulan, highly polymerized polyethylene glycol, polyvinyl alcohol, polyvinylpyrrolidone, vinylpyrrolidone / vinyl acetate copolymer, vinylpyrrolidone / vinyl acetate / vinyl propionate copolymer (e.g., BASF, trade name "Ruviscol"), dimethylhydantoin formaldehyde resin, and poly(meth)acrylic. Examples of the poly(meth)acrylic acid include (meth)acrylic acid copolymers, poly(meth)acrylic acid esters, (meth)acrylic acid ester copolymers, poly(meth)acrylamides, and (meth)acrylic acid amide copolymers. These may be used alone or in combination of two or more.

[0073] Examples of anionic polymers include xanthan gum, carrageenan, sodium alginate, gum arabic, pectin, and carboxyvinyl polymers, etc. These may be used alone or in combination of two or more.

[0074] Examples of cationic polymers include cationized celluloses such as O-[2-hydroxy-3-(trimethylammonio)propyl]hydroxyethyl cellulose chloride, O-[2-hydroxy-3-(lauryldimethylammonio)propyl]hydroxyethyl cellulose chloride, and hydroxyethyl cellulose dimethyl diallyl ammonium chloride; cationized guar gums such as O-[2-hydroxy-3-(trimethylammonio)propyl]guar gum chloride; and cationized dextrans such as dextran hydroxypropyltrimethylammonium ether chloride. Cationized polysaccharides obtained by cationizing polysaccharides such as cellulose derivatives, natural gums, starches, and dextran; N-[2-hydroxy-3-(trimethylammonio)propyl] chloride hydrolyzed casein, N-[2-hydroxy-3-(trimethylammonio)propyl] chloride hydrolyzed collagen, N-[2-hydroxy-3-(trimethylammonio)propyl] chloride hydrolyzed silk, N-[2-hydroxy-3-(trimethylammonio)propyl] chloride hydrolyzed keratin, N-[2-hydroxy-3-(trimethylammonio)propyl] chloride hydrolyzed Decomposed wheat protein, N-[2-hydroxy-3-(trimethylammonio)propyl] chloride hydrolyzed conchiolin, N-[2-hydroxy-3-(stearyldimethylammonio)propyl] chloride hydrolyzed keratin, N-[2-hydroxy-3-(stearyldimethylammonio)propyl] chloride hydrolyzed collagen, N-[2-hydroxy-3-(stearyldimethylammonio)propyl] chloride hydrolyzed silk, N-[2-hydroxy-3-(stearyldimethylammonio)propyl] chloride hydrolyzed casein, N-[2-hydroxy-3-(stearyldimethylammonio)propyl] chloride hydrolyzed N-[2-hydroxy-3-(lauryldimethylammonio)propyl] hydrolyzed wheat protein, N-[2-hydroxy-3-(stearyldimethylammonio)propyl] chloride hydrolyzed conchiolin, N-[2-hydroxy-3-(lauryldimethylammonio)propyl] chloride hydrolyzed keratin, N-[2-hydroxy-3-(lauryldimethylammonio)propyl] chloride hydrolyzed collagen, N-[2-hydroxy-3-(lauryldimethylammonio)propyl] chloride hydrolyzed silk, N-[2-hydroxy-3-(lauryldimethylammonio)propyl] chloride hydrolyzed casein,N-[2-hydroxy-3-(lauryldimethylammonio)propyl] chloride hydrolyzed wheat protein, N-[2-hydroxy-3-(lauryldimethylammonio)propyl] chloride hydrolyzed conchiolin, N-[2-hydroxy-3-(coco-alkyldimethylammonio)propyl] chloride hydrolyzed soy protein, N-[2-hydroxy-3-(coco-alkyldimethylammonio)propyl] chloride hydrolyzed casein, N-[2-hydroxy-3-(coco-alkyldimethylammonio)propyl] chloride hydrolyzed collagen, N-[2-hydroxy-3-(coco-alkyldimethylammonio)propyl] chloride hydrolyzed silk, N-[2-hydroxy-3-(coco-alkyldimethylammonio)propyl] chloride hydrolyzed keratin, N-[2-hydroxy-3-(coco-alkyldimethylammonio)propyl] chloride Examples include cationized hydrolyzed proteins obtained by cationizing hydrolyzed proteins such as [monio)propyl] hydrolyzed conchiolin; cationized vinyl or acrylic polymers such as dimethyldiallylammonium chloride-acrylamide copolymer, β-methacryloxyethyltrimethylammonium-acrylamide copolymer, vinylpyrrolidone-N,N-dimethylaminoethyl methacrylic acid copolymer diethyl sulfate, and polydimethylmethylenepiperidinium chloride; polyglycol polyamine condensates such as N,N-dimethylaminoethyl methacrylate diethyl sulfate-N,N-dimethylacrylamide-polyethylene glycol dimethacrylate; dimethyl adipionate-aminohydroxypropyl diethyltriamine copolymer; and aminoethylaminopropyl-methylpolysiloxane copolymer. Among these, dimethyldiallylammonium chloride-acrylamide copolymer is preferred. These cationic polymers may be used alone or in combination.

[0075] Examples of amphoteric polymers include N-methacryloylethyl N,N-dimethylammonium α-N-methylcarboxybetaine-butyl methacrylate copolymer (trade name: Yukaformer AM-75, manufactured by Mitsubishi Chemical Corporation), hydroxypropyl acrylate-butylaminoethyl methacrylate-octyl acrylate copolymer (trade name: Amphomer 28-4910, manufactured by National Starch Co.), dimethyldiallylammonium chloride-acrylic acid copolymer (trade names: Merquat 280 and 295, manufactured by Ondeo-Nalco), dimethyldiallylammonium chloride-acrylamide-acrylic acid terpolymer (trade names: Merquat Plus 3330 and 3331, manufactured by Ondeo-Nalco), and acrylic acid-methyl acrylate-methacrylamidopropyltrimethylammonium chloride copolymer (trade name: Merquat 2001, manufactured by Ondeo-Nalco). These may be used alone or in combination.

[0076] Examples of the sugar include trehalose, maltose, glycosyltrehalose, sorbitol, xylitol, maltitol, and N-acetylglucosamine, etc. These may be used alone or in combination of two or more.

[0077] Examples of the preservatives include paraben, methylparaben, sodium benzoate, phenoxyethanol, etc. These may be used alone or in combination of two or more.

[0078] Examples of the chelating agent include edetic acid (ethylenediaminetetraacetic acid (EDTA)) and its salts, diethylenetriaminepentaacetic acid and its salts, and hydroxyethanediphosphonic acid (etidronic acid, HEDP) and its salts. These may be used alone or in combination of two or more.

[0079] Examples of the stabilizer include phenacetin, 8-hydroxyquinoline, acetanilide, sodium pyrophosphate, barbituric acid, uric acid, tannic acid, etc. These may be used alone or in combination of two or more.

[0080] Examples of the pH adjuster include malic acid, pyrrolidone carboxylic acid (PCA), succinic acid, citric acid, taurine, glutamic acid, tartaric acid, lactic acid, arginine, etc. These may be used alone or in combination of two or more.

[0081] Examples of the antioxidant include ascorbic acid, tocopherol, tocopherol acetate, sulfites, etc. These may be used alone or in combination of two or more. [Example]

[0082] The present invention will be specifically described below with reference to examples, but the technical scope of the present invention is not limited to these examples.

[0083] [Preparation of hair cosmetics] Hair cosmetics were prepared with the compositions shown in Tables 1 to 4 below. The obtained hair cosmetics were evaluated in terms of "ease of spreading the agent," "thickness upon application," "softness," "manageability," "ease of running fingers through hair," and "lasting effect."

[0084] [Preparing damaged hair strands] Hair bundle samples (same human hair, hair diameter: 75-95 micrometers) were treated with "Promaster EX LT" (Hoyu Corporation, bleach) at 30°C for 30 minutes, then rinsed with water, shampooed, and dried with a hair dryer (bleaching treatment). Damaged hair bundles were prepared by bleaching.

[0085] [Hair treatment with hair cosmetics] 30 g of the damaged hair bundle prepared as described above was washed with 1.5 g of shampoo, thoroughly rinsed with water, and then 3 g of the hair cosmetic composition of the Examples and Comparative Examples was applied. The hair was then rinsed with water to rinse off the hair cosmetic composition, and then towel-dried and then dried with a hair dryer to obtain a treated hair bundle.

[0086] [Evaluation method] The ease of spreading (applicability) of the hair cosmetic compositions of each Example and Comparative Example, as well as the softness, manageability, and feel of running fingers through the treated hair strands with the hair cosmetic compositions of each Example and Comparative Example were evaluated. Furthermore, the durability of these feel was evaluated. The evaluation methods are as follows.

[0087] <Ease of spreading the agent (applicability)> The applicability was evaluated as follows by a sensory test conducted by 10 panelists specializing in hair treatment. The 10 panelists rated the ease of spreading the hair cosmetic when applying it, using the following three-level evaluation criteria: an average score of 2.8 or higher was assigned a rating of "5," 2.5 or higher but less than 2.8 was assigned a rating of "4," 2.0 or higher but less than 2.5 was assigned a rating of "3," 1.5 or higher but less than 2.0 was assigned a rating of "2," and less than 1.5 was assigned a rating of "1." (Evaluation criteria) 3: It spreads very well and is easy to use. 2: Sufficiently stretchable and no problems with use. 1: It doesn't spread well and is difficult to use. The evaluation results are shown in Tables 1 to 4 under the heading "Ease of spreading agent (applicability)."

[0088] <Softness> Hair softness was evaluated by a sensory test conducted by 10 panelists who are experts in hair feel, as follows: The 10 panelists compared the damaged hair tresses with the treated hair tresses and scored them using the following three-level evaluation criteria: an average score of 2.8 or higher was assigned a "5," 2.5 or higher but less than 2.8 was assigned a "4," 2.0 or higher but less than 2.5 was assigned a "3," 1.5 or higher but less than 2.0 was assigned a "2," and less than 1.5 was assigned a "1." (Evaluation criteria) 3: The softness has been greatly improved. 2: Improved softness. 1: Slightly improved softness. The evaluation results are shown in the "Softness" section of Tables 1 to 4.

[0089] <Unity> Hair manageability was evaluated by a sensory test conducted by 10 panelists who are experts in hair feel, as follows: The 10 panelists compared the damaged hair tresses with the treated hair tresses and scored them using the following three-level evaluation criteria: an average score of 2.8 or higher was assigned a "5," 2.5 or higher but less than 2.8 was assigned a "4," 2.0 or higher but less than 2.5 was assigned a "3," 1.5 or higher but less than 2.0 was assigned a "2," and less than 1.5 was assigned a "1." (Evaluation criteria) 3: The sense of cohesion was greatly improved. 2: The sense of cohesion has improved. 1: The sense of cohesion was slightly improved. The evaluation results are shown in the "Unity" section of Tables 1 to 4.

[0090] <Finger Run> The ease of running your fingers through the hair was evaluated by a sensory test conducted by 10 panelists who are experts in hair feel. The 10 panelists compared the damaged hair strands with the treated hair strands and scored them using the following three-level evaluation criteria. An average score of 2.8 or higher by the 10 panelists was assigned a rating of "5," 2.5 or higher but less than 2.8 was assigned a rating of "4," 2.0 or higher but less than 2.5 was assigned a rating of "3," 1.5 or higher but less than 2.0 was assigned a rating of "2," and less than 1.5 was assigned a rating of "1." (Evaluation criteria) 3: The smoothness of my hair has improved dramatically. 2: The smoothness of my hair has improved. 1: Slightly improved smoothness. The evaluation results are shown in the "Finger Run" section of Tables 1 to 4.

[0091] <Sustainability> To evaluate the durability of the effects of the hair cosmetics, the hair strands treated with the hair cosmetics of each Example and Comparative Example were further immersed in a 1% by mass aqueous solution of sodium lauryl sulfate at 50°C for 6 minutes (equivalent to an accelerated test for repeated shampooing) and then rinsed with water. Next, a commercially available shampoo and a commercially available conditioner were applied in the usual manner, and the hair strands were dried using a hair dryer to prepare hair strands for durability evaluation. The feel of the resulting hair strands for durability evaluation was compared with the feel of the treated hair strands treated with the hair cosmetics of each Example and Comparative Example to evaluate the durability of the effects of the hair cosmetics. The evaluation method was based on the following three-level rating scale. An average score of 2.8 or higher from 10 panelists was assigned a rating of "5," a score of 2.5 or higher but less than 2.8 was assigned a rating of "4," a score of 2.0 or higher but less than 2.5 was assigned a rating of "3," a score of 1.5 or higher but less than 2.0 was assigned a rating of "2," and a score of less than 1.5 was assigned a rating of "1." (Evaluation criteria) 3: Softness, consistency, and feel when running your fingers through it are the same. 2: The softness, manageability, and feel of the hair when run through the fingers were slightly reduced, but the feel was still sufficient. 1: The softness, manageability, and feel of the hair when run through the fingers have decreased, and the hair is in a state similar to that before treatment. The evaluation results are shown in the "Sustainability" section of Tables 1 to 4.

[0092] [Table 1]

[0093] The effects of hair cosmetics are examined with reference to Table 1. Comparing Examples 1 and 2 with Comparative Examples 1 and 2, it is clear that when (a1) a highly polymerized silicone with an average degree of polymerization of 2000 or more is contained and (b1+c1) / a1 is 1 to 10, hair manageability and combability are improved, and the duration of the treatment effect is also improved. Furthermore, comparing Example 1 and Example 2, it is clear that the effects of the present invention are more pronounced when the highly polymerized silicone has an average degree of polymerization of 4000 or more. Comparing Example 1 with Comparative Example 3, it can be seen that when (b1) a dialkyl quaternary ammonium salt type cationic surfactant is contained, the softness of the hair is improved, and furthermore, the ease of spreading the agent (applicability) is also improved. Comparing Example 1 with Comparative Examples 4 and 5, it can be seen that (c1) when a higher alcohol having a branched structure that is liquid at 25°C is included, the ease of spreading (applicability) of the agent is improved. It can also be seen that the softness, manageability, and ease of running one's fingers through the hair are improved. However, as shown in Comparative Example 5, the effects of the present invention cannot be obtained even when a liquid higher alcohol that does not have a branched chain is included.

[0094] [Table 2]

[0095] The effects of the present invention and the contents of component (A), component (a1), and component (b1) are discussed with reference to Table 2. Comparing Examples 1, 3, and 4, it was observed that increasing the content of component (A) improved hair manageability and ease of running fingers through the hair, and also tended to improve the durability of the treatment effect. Comparing Examples 1, 5, and 6, it was found that when the content of component (a1) was increased, the manageability and smoothness of hair improved, and the durability of the treatment effect also tended to improve. Comparing Examples 1, 7, and 8, it was found that a particularly excellent effect was achieved when the content of component (b1) was in the range of 0.5 to 2.5% by mass. Also, comparing Examples 1 and 9, it was found that the use of dicocoyldimethylammonium chloride further improved the ease of spreading the agent and the effect of softening the hair.

[0096] [Table 3]

[0097] The effects of the present invention and the contents of the (c1) and (d1) components will be discussed with reference to Table 3. Comparing Examples 1, 10, and 11, when the content of the (c1) component was 0.5 mass% or more, particularly excellent effects were observed in all items. Comparing Examples 1 and 12, it was confirmed that component (c1) and component (C) were effective even when using similar materials. Comparing Examples 1, 13, and 16, when (D) an ester compound with a viscosity of 1000 mPa s or more at 25°C was included, hair softness and manageability improved, and the duration of the treatment effect also improved. Furthermore, when a dimer dilinoleic acid ester was used as component (D), particularly excellent effects were observed in all items. Comparing Examples 1, 14, and 15, it was found that a particularly excellent effect was achieved when the content of component (D) was in the range of 1 to 3 mass %.

[0098] [Table 4]

[0099] With reference to Table 4, the relationship between the contents of various components and the effects of the present invention will be discussed. Comparing Examples 1, 17, and 18, excellent effects were observed when "(b1+c1) / B+C" was 0.1 or more, and particularly excellent effects were observed when it was 0.29 or more. Comparing Examples 1, 19, and 20, a particularly excellent effect was observed when "(b1+c1) / a1" was in the range of 1 to 6.5. Example 21 is shown as a formulation example.

[0100] [Prescription example] The hair cosmetics shown in Table 5 below were prepared. The hair cosmetic of Formulation Example 1 had excellent spreadability and provided lasting tactile effects such as manageability, ease of running fingers through hair, and softness.

[0101] [Table 5] [Industrial Applicability]

[0102] The hair cosmetic composition of the present invention can be used as a hair cosmetic composition for treating human body hair such as head hair, beard, eyebrows, leg hair, etc. In addition, it may also be used to treat body hair of animals such as pets. The hair cosmetic composition of the present invention can be used as a one-component or multi-component hair cosmetic composition for treatment used in beauty salons or barber shops, and can also be used as a hair cosmetic composition for self-treatment used at home. The hair cosmetic composition of the present invention can be used in pump-type and tube-type products because it can reduce viscosity.

Claims

1. A hair treatment cosmetic composition comprising (A) a silicone, (B) a cationic surfactant, and (C) a higher alcohol, The (A) silicone contains (a1) a highly polymerized silicone having an average degree of polymerization of 2,000 to 20,000 and a silicone having an average degree of polymerization of less than 2,000, The (B) cationic surfactant contains (b1) dicocoyldimethylammonium chloride or a three-chain quaternary ammonium salt cationic surfactant, A hair cosmetic composition characterized in that the (C) higher alcohol contains (c1) a higher alcohol having a branched structure that is liquid at 25°C and a higher alcohol other than the (c1) component. (However, the hair treatment cream contains 3.0% by weight of behenyltrimethylammonium chloride, 1.0% by weight of distearyldimethylammonium chloride, 5.0% by weight of cetanol, 1.5% by weight of glycerol monostearate, 3.0% by weight of 2-octyldodecanol, 1.0% by weight of cetyl 2-ethylhexanoate, 0.6% by weight of polyoxyethylene hydrogenated castor oil derivative (ethylene oxide 60 mol adduct), 0.4% by weight of polyoxyethylene stearyl ether (ethylene oxide 60 mol adduct), 0.7% by weight of hydroxyethyl-β-CD, 12.0% by weight of a mixture of methylphenylpolysiloxane (n=8000) / dimethylpolysiloxane 20cs=20 / 80% by weight, 0.4% by weight of ethylparaben, fragrance, and ion-exchanged water. (Excluding hair treatments containing 2.5% by mass of stearyltrimethylammonium chloride, 1.5% by mass of distearyldimethylammonium chloride, 5.0% by mass of cetanol, 2.0% by mass of liquid paraffin, 2.0% by mass of octyldodecanol, 1.0% by mass of methylphenylpolysiloxane, 1.0% by mass of dimethylpolysiloxane (500,000 cSt; 25°C), 0.5% by mass of POE (60) hydrogenated castor oil, 3.0% by mass of water-soluble black currant extract, 5.0% by mass of propylene glycol, preservatives, fragrances, and purified water.)

2. 2. The hair cosmetic composition according to claim 1, further comprising (d1) an ester compound having a viscosity of 1,000 mPa·s or more at 25°C.

3. 3. The hair cosmetic composition according to claim 2, wherein the ratio ((b1+c1) / (a1+d1)) of the sum of the content of the component (b1) and the content of the component (c1) to the sum of the content of the component (a1) and the content of the component (d1) is 1.0 to 3.

0.

4. 4. The hair cosmetic composition according to claim 1, wherein a ratio ((b1+c1) / (B+C)) of the sum of the content of the component (b1) and the content of the component (c1) to the sum of the total content of the component (B) and the total content of the component (C) is 0.25 to 1.0.

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