Composition, hair composition, and hair treatment method

Abstract

To provide a composition and a composition for hair excellent in stability of dispersion or dissolution of a liquid oil when a hydrolyzed protein and / or a derivative thereof and a cationic surfactant are blended, and to provide a hair treatment method using the composition.SOLUTION: The composition comprises a hydrolyzed protein and / or a derivative thereof, a cationic surfactant, a liquid oil, and water, wherein a difference between a storage modulus G ' and a loss modulus G '' is a positive value when a stress (τ) is 0.3 Pa, the composition is formulated as a premix raw material, and the hair treatment method uses the composition.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a composition suitable as a premix raw material to be blended into a hair composition, a hair composition containing the composition, and a hair treatment method using the hair composition. [Background technology]

[0002] Hair compositions contain various ingredients depending on the purpose, and when a liquid oil is included, the liquid oil must be stably dispersed or dissolved. For example, Patent Document 1 discloses a composition in which oily particles containing a dextrin fatty acid ester and a liquid oil are dispersed in an aqueous phase. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-36001 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, it is known that hydrolyzed proteins and their derivatives are blended for the purpose of hair repair, etc., and cationic surfactants are blended for the purpose of imparting softness to hair, etc. Even when these components are blended, it is desired that the liquid oil be stably dispersed or dissolved.

[0005] In view of the above circumstances, an object of the present invention is to provide a composition that exhibits excellent dispersion or dissolution stability in liquid oil when a hydrolyzed protein and / or a derivative thereof and a cationic surfactant are blended therein.

[0006] Another object of the present invention is to provide a hair composition that exhibits excellent dispersion or dissolution stability of liquid oil when formulated with a hydrolyzed protein and / or a derivative thereof and a cationic surfactant, and a hair treatment method using the composition. [Means for solving the problem]

[0007] The present inventors have conducted extensive research into production methods for blending a hydrolyzed protein and / or a derivative thereof, a cationic surfactant, and a liquid oil, and have found that when a specific production method is used, it is possible to achieve a storage modulus G' and a loss modulus G'' that are excellent in the stability of dispersion or dissolution of the liquid oil, thereby completing the present invention. That is, the present invention includes the following inventions [1] to [8].

[0008] The composition of [1] contains a hydrolyzed protein and / or a derivative thereof, a cationic surfactant, a liquid oil, and water; This composition has a positive value for the difference (G'-G'') between the storage modulus G' and the loss modulus G'', measured using a rheometer under the following measurement conditions, when the stress (τ) is 0.3 Pa. <Measurement conditions> Measurement method: Stress-dependent dynamic viscoelasticity measurement Sensor: 35mm diameter, 2° tilt angle cone plate sensor Temperature: 25℃ Frequency: 1Hz Stress range: 0.1Pa to 1000Pa

[0009] The composition [2] is the composition according to [1], in which the blending amount of the liquid oil is 40 mass % or more.

[0010] The composition [3] is the composition according to [1] or [2], wherein the hydrolyzed protein and / or its derivative is one or more selected from the group consisting of hydrolyzed protein, cationized hydrolyzed protein, acylated hydrolyzed protein, and silylated hydrolyzed protein.

[0011] The composition [4] is the composition according to any one of [1] to [3], wherein the hydrolyzed protein and / or derivative thereof is hydrolyzed keratin and / or derivative thereof.

[0012] The composition [5] is the composition according to any one of [1] to [4], wherein the cationic surfactant is a mono-long chain quaternary ammonium salt, a dialkyldimethylammonium salt, and / or a fatty acid amidoamine.

[0013] The composition [6] is the composition according to any one of [1] to [5], wherein the liquid oil is one or more selected from the group consisting of liquid silicone oil, liquid hydrocarbon, liquid ester oil, liquid ether oil, liquid fat, liquid wax, liquid higher alcohol, and liquid fatty acid.

[0014] The hair composition of [7] is a hair composition containing the composition according to any one of [1] to [6] as a premix raw material.

[0015] The hair treatment method of [8] is a hair treatment method using the hair composition described in [7]. [Effects of the Invention]

[0016] The composition of the present invention has a predetermined storage modulus G' and loss modulus G'' after blending a hydrolyzed protein and / or its derivative, and a cationic surfactant, and therefore has excellent stability in dispersing or dissolving liquid oil.

[0017] The hair composition of the present invention contains a premixed raw material that has a predetermined storage modulus G' and loss modulus G'' after blending a hydrolyzed protein and / or a derivative thereof, a cationic surfactant, and a liquid oil, and therefore has excellent dispersibility or solubility of the liquid oil.

[0018] Furthermore, according to the hair treatment method of the present invention, a hair composition having excellent dispersibility or solubility of liquid oil is used, so that it is possible to impart a highly uniform feel to hair. [Brief explanation of the drawings]

[0019] [Figure 1]Photographs of the appearance of the compositions of Example 1 and Comparative Examples 1 and 2 after they were left standing on a horizontal desk (immediately after being left standing and after 2 hours of being left standing). [Figure 2] Photographs of the appearance of the compositions of Example 2 and Comparative Examples 3 and 4 after they were left standing on a horizontal desk (immediately after being left standing and after 2 hours of being left standing). [Figure 3] Photographs of the appearance of the compositions of Example 3 and Comparative Examples 5 and 6 after they were left standing on a horizontal desk (immediately after being left standing and after 2 hours of being left standing). [Figure 4] Photographs of the appearance of the compositions of Example 1 and Comparative Examples 7 to 9 after they were left standing on a horizontal desk (immediately after being left standing and after 2 hours of being left standing). [Figure 5] Photographs of the appearance of the compositions of Examples 1 and 4 to 6 after they were left standing on a horizontal desk (immediately after being left standing and after 2 hours of being left standing). [Figure 6] Photographs of the appearance of the compositions of Examples 1, 7, and 8 after they were left standing on a horizontal desk (immediately after being left standing and after 2 hours of being left standing). [Figure 7] Photographs showing the appearance of the compositions of Examples 9 to 11 after they were left standing on a horizontal desk (immediately after being left standing and after 2 hours). [Figure 8] Photographs showing the appearance of the compositions of Examples 12 to 14 after they were left standing on a horizontal desk (immediately after being left standing and after 2 hours). [Figure 9] Photographs showing the appearance of the compositions of Examples 15 to 18 after they were left standing on a horizontal desk (immediately after being left standing and after 2 hours). [Figure 10] Photographs showing the appearance of the compositions of Examples 19 to 21 after they were left standing on a horizontal desk (immediately after being left standing and after 2 hours of being left standing). [Figure 11] Photographs showing the appearance of the compositions of Examples 22 to 24 after they were left standing on a horizontal desk (immediately after being left standing and after 2 hours). DETAILED DESCRIPTION OF THE INVENTION

[0020] The present invention will be described below based on an embodiment of the present invention (hereinafter referred to as the present embodiment).

[0021] <<Composition>> The composition of the present embodiment has a storage modulus G' and a loss modulus G'' that satisfy predetermined measured values. The composition of the present embodiment contains a hydrolyzed protein and / or a derivative thereof, a cationic surfactant, a liquid oil, and water as essential components, and other components are appropriately contained as optional components.

[0022] (Storage modulus G' and loss modulus G'') In the present embodiment, the storage modulus G' and the loss modulus G'' are values ​​measured using a rheometer. These values ​​are the storage modulus G' and the loss modulus G'' measured under the following conditions using a rheometer (for example, a stress-controlled rheometer "Rheo Stress 6000" manufactured by HAAKE). <Measurement conditions> Measurement method: Stress-dependent dynamic viscoelasticity measurement Sensor: 35mm diameter, 2° tilt angle cone plate sensor Temperature: 25℃ Frequency: 1Hz Stress range: 0.1Pa to 1000Pa

[0023] The difference (G'-G'') between the storage modulus G' and the loss modulus G'' of the composition according to this embodiment is preferably a positive value (a value exceeding 0) when the stress (τ) is a certain value within the range of 0.1 Pa to 1 Pa. When this positive value is obtained, the composition exhibits excellent dispersion or dissolution stability (hereinafter sometimes referred to as "stability of dispersion, etc.") of the hydrolyzed protein and / or derivatives thereof, cationic surfactant, and liquid oil.

[0024] In the following, stress (τ) may be simply referred to as "τ", and the difference between the storage modulus G' and the loss modulus G'' may be referred to as "G'-G''". Furthermore, when stress (τ) is ● Pa, it may be referred to as "τ = ●" (for example, when τ is 0.3 Pa, it is referred to as "τ = 0.3"), and when stress (τ) is ● Pa, G'-G'' may be referred to as "G'-G'' when τ = ●" (for example, when stress (τ) is 0.3 Pa, G'-G'' is referred to as "G'-G'' when τ = 0.3").

[0025] G'-G'' of the composition according to this embodiment is a positive value when τ=0.3, preferably a positive value when τ=0.5, more preferably a positive value when τ=0.6, and particularly preferably a positive value when τ=0.7. When the value of τ is larger within the range of τ=0.1 to 1 Pa, if G'-G'' is a positive value, the stability of dispersion and the like tends to be more excellent. The wider the range of τ=0.1 to 1 Pa in which G'-G'' is a positive value, the more excellent the stability of dispersion and the like.

[0026] As described above, G'-G'' of the composition according to this embodiment is a positive value when τ is 0.3 Pa. From the viewpoint of further improving the stability of dispersion and the like, G'-G'' when τ=0.3 is preferably 1 or more, preferably 3 or more, more preferably 6 or more, even more preferably 20 or more, and particularly preferably 30 or more. Furthermore, G'-G'' when τ=0.3 is, for example, 3000 or less, or 5000 or less.

[0027] As described above, G'-G'' of the composition according to this embodiment is preferably a positive value when τ is 0.5 Pa. From the viewpoint of further improving the stability of dispersion and the like, when τ=0.5, G'-G'' is preferably 1 or more, preferably 3 or more, more preferably 6 or more, even more preferably 20 or more, and particularly preferably 30 or more. When τ=0.3, G'-G'' is, for example, 3000 or less, or 5000 or less.

[0028] As described above, G'-G'' of the composition according to this embodiment is preferably a positive value when τ is 0.6 Pa. From the viewpoint of further improving the stability of dispersion and the like, when τ=0.6, G'-G'' is preferably 1 or more, preferably 3 or more, more preferably 6 or more, even more preferably 20 or more, and particularly preferably 30 or more. When τ=0.3, G'-G'' is, for example, 3000 or less, or 5000 or less.

[0029] As described above, G'-G'' of the composition according to this embodiment is preferably a positive value when τ is 0.7 Pa. From the viewpoint of further improving the stability of dispersion and the like, when τ=0.7, G'-G'' is preferably 1 or more, preferably 3 or more, more preferably 6 or more, even more preferably 20 or more, and particularly preferably 30 or more. When τ=0.3, G'-G'' is, for example, 3000 or less, or 5000 or less.

[0030] In the composition according to this embodiment, G'-G'' is preferably a positive value when τ is in the range of 0.2 to 1.

[0031] (Hydrolyzed protein and / or its derivatives) The composition of this embodiment contains a hydrolyzed protein and / or a derivative thereof, and contains one or more selected from hydrolyzed proteins and their derivatives. Because the composition of this embodiment contains a combination of a hydrolyzed protein and / or a derivative thereof and a cationic surfactant, it has superior stability, such as dispersion, compared to when each is contained alone. Note that "and / or" means either one, two or more, or all (hereinafter, the same meaning is used).

[0032] The hydrolyzed protein is a protein that has been hydrolyzed. Known hydrolyzed proteins may be used as the hydrolyzed protein of this embodiment, and hydrolyzed proteins are preferred from the viewpoint of stability such as dispersion.

[0033] As the above-mentioned hydrolyzed protein, for example, hydrolyzed keratin, hydrolyzed collagen, hydrolyzed silk, hydrolyzed soybean protein, hydrolyzed almond protein, hydrolyzed pea protein, hydrolyzed casein, hydrolyzed oat protein, hydrolyzed yeast protein, hydrolyzed rice protein, hydrolyzed conchiolin, hydrolyzed white lupin protein, hydrolyzed corn protein, hydrolyzed milk protein, hydrolyzed honey protein, hydrolyzed hazelnut protein, hydrolyzed jojoba protein, hydrolyzed vegetable protein, hydrolyzed royal jelly protein can be enumerated (the names of the components listed are all cosmetic label names).When hydrolyzed protein is blended into the composition of this embodiment, it is advisable to blend one or more kinds of hydrolyzed protein.

[0034] The above-mentioned derivatives of hydrolyzed proteins are those in which a substituent (e.g., a cationic group, an acyl group, a silyl group, etc.) is added to a hydrolyzed protein. Publicly known derivatives of hydrolyzed proteins can be used as the derivatives of the hydrolyzed protein of this embodiment, and examples of such derivatives include cationized hydrolyzed proteins, acylated hydrolyzed proteins, silylated hydrolyzed proteins, and ethyl esterified hydrolyzed proteins. From the viewpoint of stability, such as dispersion, cationized hydrolyzed proteins and silylated hydrolyzed proteins are preferred.

[0035] Examples of the cationized hydrolyzed proteins include hydroxypropyltrimonium hydrolyzed keratin, hydroxypropyltrimonium hydrolyzed collagen, hydroxypropyltrimonium hydrolyzed silk, hydroxypropyltrimonium hydrolyzed casein, hydroxypropyltrimonium hydrolyzed soy protein, quaternium-76 hydrolyzed collagen, quaternium-79 hydrolyzed silk, cocamidopropyldimethylaminohydroxypropyl hydrolyzed collagen, cetearamidoethyldiethonium hydrolyzed keratin, and cetearamidoethyldiethonium isostearoyl hydrolyzed silk (all exemplified ingredient names are cosmetic label names). When a cationized hydrolyzed protein is blended into the composition of this embodiment, it is recommended to blend one or more cationized hydrolyzed proteins.

[0036] Examples of the acylated hydrolyzed proteins include undecylenoyl hydrolyzed collagen K, lauroyl hydrolyzed silk Na, lauroyl hydrolyzed soy protein K, lauroyl hydrolyzed pea protein K, myristoyl hydrolyzed collagen, myristoyl hydrolyzed collagen K, cocoyl hydrolyzed keratin, cocoyl hydrolyzed keratin K, oleoyl hydrolyzed collagen, stearoyl hydrolyzed collagen K, stearoyl hydrolyzed collagen Na, isostearoyl hydrolyzed keratin, isostearoyl hydrolyzed silk, isostearoyl hydrolyzed silk AMP, isostearoyl hydrolyzed collagen, isostearoyl hydrolyzed collagen AMP, and isostearoyl hydrolyzed collagen AMPD (all exemplified ingredient names are cosmetic label names). When acylated hydrolyzed proteins are blended into the composition of this embodiment, it is recommended to blend one or more acylated hydrolyzed proteins.

[0037] Examples of the silylated hydrolyzed proteins include hydrolyzed keratin PG propyl silanetriol, hydrolyzed collagen PG propyl methyl silanediol, (hydrolyzed silk / PG propyl methyl silanediol) crosspolymer, (dihydroxymethylsilylpropoxy) hydroxypropyl hydrolyzed keratin, (dihydroxymethylsilylpropoxy) hydroxypropyl hydrolyzed silk, and (dihydroxymethylsilylpropoxy) hydroxypropyl hydrolyzed soy protein (all exemplified ingredient names are cosmetic label names). When a silylated hydrolyzed protein is blended into the composition of this embodiment, it is recommended to blend one or more types of silylated hydrolyzed proteins.

[0038] Examples of the ethyl esters of hydrolyzed proteins include hydrolyzed keratin ethyl, hydrolyzed collagen ethyl, and hydrolyzed silk ethyl (all of the exemplified ingredient names are cosmetic label names). When ethyl esters of hydrolyzed proteins are blended in the composition of the present embodiment, it is preferable to blend one or more types of ethyl esters of hydrolyzed proteins.

[0039] The number average molecular weight of the hydrolyzed protein in the hydrolyzed protein and / or derivatives thereof is not particularly limited and is, for example, 300 or more, but from the viewpoint of stability such as dispersion, it is preferably 1000 or more, more preferably 2000 or more, even more preferably 4000 or more, and particularly preferably 10000 or more. The number average molecular weight of the hydrolyzed protein in the hydrolyzed protein and / or derivatives thereof is, for example, 50000 or less.

[0040] The number average molecular weight can be calculated by the following formula based on the amino acid terminal group determination method, which is determined from the ratio of the total nitrogen amount of the peptides constituting the hydrolyzed protein or its derivative to the nitrogen amount of the terminal amino acid. Number average molecular weight = (((average molecular weight of amino acid - 18) x total nitrogen amount) / amino nitrogen amount) + 18

[0041] The amount of hydrolyzed protein and its derivatives blended in the composition of this embodiment is not particularly limited and may be set appropriately. Note that the "amount of hydrolyzed protein and its derivatives blended" refers to the amount of either the hydrolyzed protein or its derivatives blended in the composition of this embodiment as the hydrolyzed protein and / or its derivative, and refers to the total amount of both the hydrolyzed protein and its derivatives blended in the composition of this embodiment (this meaning is used in the following description as well).

[0042] The amount of hydrolyzed protein and derivatives thereof blended in the composition of this embodiment is, for example, 0.01% by mass or more, but is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, and even more preferably 0.3% by mass or more, from the viewpoint of improving the stability of dispersion, etc. The amount of hydrolyzed protein and derivatives thereof blended in the composition of this embodiment is, for example, 10% by mass or less, but is preferably 5% by mass or less, more preferably 3% by mass or less, and even more preferably 1% by mass or less, from the viewpoint of reducing costs.

[0043] (cationic surfactant) The composition of the present embodiment contains one or more cationic surfactants selected from known cationic surfactants. The composition of the present embodiment contains the cationic surfactant and the hydrolyzed protein and / or its derivative, which improves the stability of dispersion and the like compared to when each surfactant is contained alone.

[0044] Examples of the cationic surfactants include mono-long chain quaternary ammonium salts, dialkyldimethylammonium salts, benzalkonium-type quaternary ammonium salts, alkoxyalkyltrimethylammonium salts, ethylene oxide (EO)-added quaternary ammonium salts, fatty acid amidoamines, and alkylamines. The term "mono-long chain quaternary ammonium salts" refers to quaternary ammonium salts having one hydrocarbon group or hydroxyhydrocarbon group with 8 or more carbon atoms (the hydrocarbon group or hydroxyhydrocarbon group may have an amide group or an ester group, may be linear or branched, and may be saturated or unsaturated). The hydrocarbon group in the mono-long chain quaternary ammonium salt preferably has 16 to 28 carbon atoms, in order to reduce skin irritation.

[0045] From the viewpoint of imparting superior smoothness to hair, the cationic surfactant is preferably, for example, a quaternary ammonium salt having a mono-long chain, a dialkyldimethylammonium salt, and / or a fatty acid amidoamine.

[0046] Examples of the quaternary ammonium salt having a monolong chain include quaternary ammonium salts represented by the following general formula (1): When a quaternary ammonium salt having a monolong chain is blended into the composition of the present embodiment, it is preferable to blend one or more types of quaternary ammonium salts having a monolong chain. [ka] [In the above general formula (1), R1, R2, R3, R4, and X are as follows: R1 represents a hydrocarbon group or hydroxyhydrocarbon group having 8 to 28 carbon atoms (or 16 to 22 carbon atoms), which may have an amide group (-CONH-) or an ester group (-COO-). The hydrocarbon group or hydroxyhydrocarbon group of R1 may be saturated or unsaturated, and may be linear or branched. R2, R3, and R4 represent a hydrocarbon group or hydroxyhydrocarbon group having 3 or less carbon atoms (or 2 or less carbon atoms). The hydrocarbon groups or hydroxyhydrocarbon groups of R2, R3, and R4 are all linear or branched. R2, R3, and R4 may be the same or different. X represents a halogen atom (e.g., chlorine, bromine, etc.), methyl sulfate, ethyl sulfate, or saccharin.]

[0047] Examples of the quaternary ammonium salt represented by the general formula (1) include lauryltrimonium chloride, hydroxyethyl laurdimonium chloride, laurtrimonium bromide, myrtrimonium bromide, cetrimonium chloride, cetrimonium bromide, cetrimonium saccharin, cetrimonium methosulfate, steartrimonium chloride, steartrimonium bromide, steartrimonium methosulfate, stearyltrimonium saccharin, cocotrimonium chloride, cocotrimonium methosulfate, hydrogenated palmtrimonium chloride, and zoytrimonium chloride. Examples of suitable quaternary ammonium salts having a mono-long chain include ammonium chloride, cetearutrimonium chloride, hydroxyethyloleyldimonium chloride, behentrimonium chloride, behentrimonium methosulfate, octacosatrimonium chloride, alkyl(C28)trimonium chloride, behenamidopropyltrimonium methosulfate, undecylenamidopropyltrimonium methosulfate, ricinoleamidopropyltrimonium methosulfate, shea butteramidopropyltrimonium chloride, and behenoyl PG trimonium chloride (all exemplified ingredient names are cosmetic label names). Suitable examples of the mono-long chain quaternary ammonium salts include monoalkyltrimethylammonium salts.

[0048] The dialkyldimethylammonium salt has two alkyl groups each having 8 to 28 carbon atoms (or 16 to 22 carbon atoms), and examples of the dialkyldimethylammonium salt include dialkyl(C12-18)dimonium chloride, dicocodimonium chloride, dicetyldimonium chloride, and distearyldimonium chloride (all exemplified component names are cosmetic label names). When a dialkyldimethylammonium salt is blended into the composition of the present embodiment, it is preferable to blend one or more types of dialkyldimethylammonium salt.

[0049] Examples of the benzalkonium-type quaternary ammonium salts include benzalkonium chloride and stearalkonium chloride. Examples of the alkoxyalkyltrimethylammonium salts include stearoxypropyltrimonium chloride, stearyl PG trimonium chloride, and behenyl PG trimonium chloride. Examples of the ethylene oxide (EO)-added quaternary ammonium salts include PEG-2 oleammonium chloride, PEG-5 stearyl ammonium chloride, PEG-5 stearylmethyl ammonium chloride, and dihydroxypropyl PEG-5 linoleammonium chloride. Note that the names of the ingredients exemplified above are all cosmetic label names. When benzalkonium-type quaternary ammonium is blended into the composition of this embodiment, it is preferable to blend one or more types of benzalkonium-type quaternary ammonium.

[0050] Examples of the fatty acid amidoamine include fatty acid amidoamines represented by the following general formula (2): When a fatty acid amidoamine is blended into the composition of the present embodiment, it is preferable to blend one or more fatty acid amidoamines. R5-CONH-(CH) n -NR6R7(2) [In the above general formula (2), R5, n, R6, and R7 are as follows. R5 represents a hydrocarbon group or a hydroxyhydrocarbon group having 11 to 25 carbon atoms (or may have 15 to 21 carbon atoms). The hydrocarbon group or hydroxyhydrocarbon group of R5 may be saturated or unsaturated, and may be linear or branched. n represents an integer of 1 to 4 (or may have 2 to 3). R6 and R7 represent an alkyl group or a hydroxyalkyl group having 3 or fewer carbon atoms (or may have 2 or fewer carbon atoms). The alkyl group or hydroxyalkyl group of R6 and R7 is linear or branched. R6 and R7 may be the same or different.]

[0051] Examples of fatty acid amidoamines represented by the above general formula (2) include cocamidopropyl dimethylamine, stearamidopropyl dimethylamine, isostearamidopropyl dimethylamine, behenamidopropyl dimethylamine, ricinoleamidopropyl dimethylamine, brassicaamidopropyl dimethylamine, stearamidoethyl diethylamine, and behenamidoethyl diethylamine (all exemplified ingredient names are cosmetic label names).

[0052] Examples of the alkylamines include stearoxypropyl dimethylamine, stearyl PG dimethylamine, PEG-5 oleamine, PEG-2 soyamine, and PEG-15 soyamine (all of the exemplified ingredient names are cosmetic label names).

[0053] The amount of cationic surfactant in the composition of this embodiment is, for example, 0.01% by mass or more. From the viewpoint of improving the stability of dispersion, etc., the amount is preferably 0.1% by mass or more, more preferably 0.2% by mass or more, and even more preferably 0.3% by mass or more. The amount of cationic surfactant in the composition of this embodiment is, for example, 10% by mass or less. From the viewpoint of reducing the risk of skin irritation, the amount is preferably 5% by mass or less, more preferably 3% by mass or less, and even more preferably 1% by mass or less.

[0054] In the composition of the present embodiment, the mass ratio of the amount of cationic surfactant to the amount of hydrolyzed protein and derivatives thereof (ratio of [amount of cationic surfactant / amount of hydrolyzed protein and derivatives thereof]) is, for example, from 1 to 3. From the viewpoint of improving the stability of dispersion, etc., this mass ratio is preferably from 1.2 to 2.5, and more preferably from 1.5 to 2.

[0055] (liquid oil) The composition of the present embodiment contains one or more known liquid oils. The liquid oil is an oil that exhibits fluidity when tilted after standing at 25°C. For example, it is preferable to add a liquid oil having a melting point of 20°C or lower to the composition of the present embodiment. The liquid oil is a component that can provide hair with a smooth feel.

[0056] Examples of the liquid oil include liquid silicone oil, liquid hydrocarbon, liquid ester oil, liquid ether oil, liquid fat, liquid wax, liquid higher alcohol, and liquid fatty acid. One or more liquid oils selected from these examples may be blended into the composition of the present embodiment.

[0057] When the liquid silicone oil is blended into the composition of the present embodiment, it is preferable to blend one or more liquid silicone oils. Examples of the liquid silicone oil include volatile liquid silicone oils and non-volatile liquid silicone oils. Examples of the volatile liquid silicone oil include those having a kinematic viscosity of 5 mm at 25°C. 2 The liquid silicone oil may have a kinematic viscosity of 5 mm / s or less at 25°C. 2 The kinematic viscosity at 25°C is a value measured at 25°C in accordance with the Quasi-drug Ingredients Standards 2021, General Test Method, Viscosity Measurement Method 1.

[0058] The volatile liquid silicone oil may be, for example, a silicone oil having a kinematic viscosity of 5 mm at 25°C. 2 / s or less (for example, a linear silicone with a kinematic viscosity of 2 mm at 25°C) 2 / s or less), dimethicone, disiloxane, trisiloxane, etc.), kinematic viscosity at 25°C 5mm 2 / s or less cyclic silicones (e.g., cyclotetrasiloxane, cyclopentasiloxane, cyclohexasiloxane, etc.), kinematic viscosity at 25°C of 5mm 2 Alkyl methicones (e.g., ethyl methicone, caprylyl methicone, etc.) with a kinematic viscosity of 5 mm / s or less at 25°C 2 The volatile liquid silicone oil is preferably a silicone oil having a kinematic viscosity of 3 mm at 25°C, from the viewpoint of realizing a smooth and silky feel to the hair. 2 Liquid silicone oils of 1 / s or less are more preferred.

[0059] Examples of the nonvolatile liquid silicone oil include dimethyl silicone (for example, a kinetic viscosity of 5 mm at 25°C). 2 / s or more (including highly polymerized dimethicone with an average degree of polymerization of 650 or more), amino-modified silicones (e.g., amodimethicone, aminopropyl dimethicone, quaternium-80, silicone quaternium-22, etc.), amino-polyether-modified silicones (e.g., (bisisobutyl PEG-14 / amodimethicone) copolymer, methoxy PEG / PPG-7 / 3 aminopropyl dimethicone, etc.), aminophenyl-modified silicones (e.g., aminopropyl phenyl trimethicone, etc.), phenyl-modified silicones (e.g., phenyl trimethicone, diphenyl dimethicone, phenylpropyl dimethylsiloxysilicate, etc.), silanol group-containing silicones (e.g., silicones with a kinematic viscosity of 5mm at 25°C, etc.), 2 / s or more (including highly polymerized dimethiconol with an average degree of polymerization of 650 or more)), long-chain alkyl-modified silicone (e.g., cetyl dimethicone, stearoxy dimethicone, stearoxymethyl polysiloxane, (stearoxymethicone / dimethicone) copolymer, etc.), polyether-modified silicone (e.g., PEG-9 polydimethylsiloxyethyl dimethicone, lauryl PEG-9 polydimethylsiloxyethyl dimethicone, PEG-12 dimethicone, PEG-32 methyl ether dimethicone, PEG / PPG-20 / 22 butyl ether dimethicone, cetyl dimethicone, stearoxymethyl polysiloxane, (stearoxymethicone / dimethicone) copolymer, etc.), PEG / PPG-10 / 1 dimethicone, PEG / PPG-25 / 25 dimethicone, etc.), silicone three-dimensional crosslinked products (for example, (vinyl dimethicone / lauryl dimethicone) crosspolymer, (lauryl polydimethylsiloxyethyl dimethicone / bisvinyl dimethicone) crosspolymer, (dimethicone / vinyl dimethicone) crosspolymer, (dimethicone / phenyl vinyl dimethicone) crosspolymer, etc.), silicones having a betaine group (for example, dimethicone propyl PG betaine, etc.) (the ingredient names exemplified in the parentheses above are all cosmetic label names).

[0060] When the liquid hydrocarbon is blended into the composition of this embodiment, it is preferable to blend one or more types of liquid hydrocarbon. Examples of the liquid hydrocarbon include volatile liquid hydrocarbons and non-volatile liquid hydrocarbons. Examples of the volatile liquid hydrocarbons that can be used include liquid hydrocarbons with a boiling point of 270°C or less. Examples of the non-volatile liquid hydrocarbons that can be used include liquid hydrocarbons with a boiling point of more than 270°C.

[0061] Examples of the volatile liquid hydrocarbons include volatile liquid hydrocarbons having a branched structure and volatile liquid hydrocarbons having a linear structure. Examples of the volatile liquid hydrocarbons having a branched structure include isododecane, light isoparaffin, light liquid isoparaffin, and volatile liquid hydrocarbons having a kinematic viscosity of 20 mm at 37.8°C. 2Examples of the volatile liquid hydrocarbons having a linear structure include hydrogenated polyisobutene and isohexadecane with a viscosity of 1 / s or less. Examples of the volatile liquid hydrocarbons having a linear structure include dodecane, C9-12 alkanes, and C10-13 alkanes. The kinematic viscosity at 37.8°C is a value measured using a viscometer such as a Cannon-Fenske viscometer or an Ubbelohde viscometer according to the method described in JIS Z8803. All of the component names exemplified above, except for light isoparaffin and light liquid isoparaffin, are cosmetic label names.

[0062] Examples of the non-volatile liquid hydrocarbon include liquid paraffin, which has a kinematic viscosity of 20 mm at 37.8°C. 2 Examples include hydrogenated polyisobutene exceeding / s, tetradecane, squalane, hydrogenated farnesene, and polybutene (limited to those that fall under the category of liquid oil).

[0063] (liquid ester oil) When the liquid ester oil is blended in the composition of this embodiment, it is preferable to blend one or more liquid ester oils. The liquid ester oil may have a chemical structure containing 12 to 60 carbon atoms in total, such as an ester of a linear or branched fatty acid with a monovalent linear or branched alcohol (e.g., cetyl ethylhexanoate), an ester of a linear or branched fatty acid with a polyhydric alcohol (e.g., tri(caprylic / capric)glyceryl), an ester of a monovalent linear or branched alcohol with a monovalent or polycarboxylic acid (e.g., triethyl citrate), or an ester of an ester compound of a linear or branched fatty acid having a hydroxyl group with a linear or branched fatty acid with a monovalent linear or branched alcohol (e.g., octyldodecyl 12-stearoyl stearate). (The ingredient names in parentheses above are all cosmetic names.)

[0064] When the liquid ether oil is blended into the composition of this embodiment, it is preferable to blend one or more types of liquid ether oil. As the liquid ether oil, any known liquid ether oil that can be blended into cosmetics can be used, such as dicaprylyl ether and diisononyl ether (all of the exemplified component names are label names for cosmetics).

[0065] When the liquid oil is blended into the composition of this embodiment, it is preferable to blend one or more types of liquid oil. As the liquid oil, any known liquid oil that can be blended into cosmetics can be used, such as rice bran oil, safflower oil, evening primrose oil, olive oil, etc. (All of the exemplified ingredient names are the names used in cosmetics).

[0066] When the liquid wax is blended into the composition of this embodiment, it is preferable to blend one or more types of liquid wax. As the liquid wax, any known liquid wax that can be blended into cosmetics can be used, such as jojoba oil and orange roughy oil (all exemplified ingredient names are cosmetic label names).

[0067] When the liquid higher alcohol is blended into the composition of this embodiment, it is preferable to blend one or more liquid higher alcohols. The liquid higher alcohol may be any known liquid higher alcohol that can be blended into cosmetics, such as a monohydric liquid higher alcohol having from 8 to 22 carbon atoms. Examples of the monohydric liquid higher alcohol having from 8 to 22 carbon atoms include hexyldecanol, isostearyl alcohol, octyldodecanol, oleyl alcohol, and jojoba alcohol (all of the exemplified ingredient names are cosmetic label names).

[0068] When the liquid higher fatty acid is blended into the composition of this embodiment, it is preferable to blend one or more liquid higher fatty acids. As the liquid higher fatty acid, a liquid higher fatty acid having from 8 to 22 carbon atoms can be used, such as oleic acid and isostearic acid (all of the exemplified component names are cosmetic label names).

[0069] The amount of liquid oil in the composition of this embodiment is not particularly limited, but is, for example, 40% by mass or more. Even an amount of 40% by mass or more provides excellent stability in dispersion, etc. A composition with excellent stability in dispersion, etc. can be achieved even if the amount is 50% by mass or more, 60% by mass or more, 70% by mass or more, or 80% by mass or more. Furthermore, the amount of liquid oil in the composition of this embodiment is, for example, 95% by mass or less. From the viewpoint of cost reduction, the amount is preferably 90% by mass or less.

[0070] In the composition of the present embodiment, the mass ratio of the amount of liquid oil to the total amount of cationic surfactant and hydrolyzed protein and derivatives thereof ([amount of liquid oil / (amount of cationic surfactant+amount of hydrolyzed protein and derivatives thereof)]) is, for example, 5 or more and 600 or less. From the viewpoint of improving the stability of dispersion, etc., this mass ratio is preferably 10 or more and 550 or less.

[0071] (water) The composition of this embodiment contains water. The amount of water in the composition of this embodiment is appropriately determined to adjust the storage modulus G', loss modulus G'', and the difference G'-G'' between the storage modulus G' and the loss modulus G''. When it is desired to increase G'-G'', it is advisable to reduce the amount of water.

[0072] The amount of water in the composition of this embodiment should be appropriately set as described above, and is, for example, 0.01% by mass or more, but from the viewpoint of suppressing an increase in the viscosity of the composition, it is preferably 0.1% by mass or more, more preferably 0.3% by mass or more, even more preferably 0.5% by mass or more, and even more preferably 1% by mass or more. The amount of water in the composition of this embodiment is, for example, 50% by mass or less, but from the viewpoint of improving the stability of dispersion, etc., it is preferably 30% by mass or less, more preferably 20% by mass or less, even more preferably 10% by mass or less, and particularly preferably 5% by mass or less.

[0073] (optional ingredient) The composition of the present embodiment may contain optional components other than the above-mentioned hydrolyzed protein and / or derivative thereof, cationic surfactant, liquid oil, and water.

[0074] The optional components are, for example, components of publicly known hair compositions, such as polyhydric alcohols (including dihydric alcohols having from 2 to 8 carbon atoms), anionic surfactants, amphoteric surfactants, nonionic surfactants, solid oils, synthetic polymer compounds, semi-synthetic polymer compounds, natural polymer compounds, proteins, animal and plant extracts, substances derived from microorganisms, inorganic compounds (including inorganic salts), fragrances, preservatives, acids, alkali agents, chelating agents, antioxidants, and ultraviolet absorbers.

[0075] The optional components, dihydric alcohols having 2 to 8 carbon atoms and inorganic salts, are preferably not blended in order to improve the stability of dispersion, etc. If they must be blended, it is advisable to limit the amount blended.

[0076] The amount of the dihydric alcohol having from 2 to 8 carbon atoms in the composition of this embodiment is preferably 5% by mass or less, more preferably 1% by mass or less, even more preferably 0.1% by mass or less, and even more preferably 0.01% by mass or less. Examples of the dihydric alcohol having from 2 to 8 carbon atoms include PG, propanediol, methylpropanediol, BG, pentylene glycol, 1,2-hexanediol, hexanediol, DPG, and octanediol (all exemplified ingredient names are cosmetic label names).

[0077] The amount of inorganic salt in the composition of the present embodiment is preferably 1% by mass or less, more preferably 0.5% by mass or less, and even more preferably 0.1% by mass or less. Examples of the inorganic salt include sodium chloride, potassium chloride, sodium sulfate, sodium phosphate, and potassium phosphate (the component names in parentheses are all cosmetic names).

[0078] (pH) The pH of the composition of this embodiment may be set appropriately, for example, to a value of not less than 2 and not more than 12. The pH is measured at 25°C.

[0079] (Manufacturing method) The method for producing the composition of this embodiment is not particularly limited, and for example, any of the production methods shown in [1] to [5] below may be employed. When it is necessary to increase the difference G'-G'' between the storage modulus G' and the loss modulus G'', the amount of water to be blended may be reduced. Furthermore, the various components may be mixed using an appropriate stirring device, and for example, a disper or the like may be used.

[0080] [1] A production method comprising: step 1-1 of obtaining a mixture (1A) by mixing a cationic surfactant, a hydrolyzed protein and / or a derivative thereof, and water; and step 1-2 of mixing the mixture (1A) from step 1-1 with a liquid oil.

[0081] [2] A production method comprising: step 2-1 of obtaining a mixture (2A) by mixing a hydrolyzed protein and / or a derivative thereof, a portion of a liquid oil, and water; step 2-2 of obtaining a mixture (2B) by mixing the mixture (2A) obtained in step 2-1 with a cationic surfactant; and step 2-3 of mixing the mixture (2B) obtained in step 2-2 with the remaining amount of the liquid oil.

[0082] [3] A production method comprising: step 3-1 of obtaining a mixture (3A) by mixing a cationic surfactant, a portion of the liquid oil, and water; step 3-2 of obtaining a mixture (3B) by mixing the mixture (3A) obtained in step 3-1 with a hydrolyzed protein and / or a derivative thereof; and step 3-3 of mixing the mixture (3B) obtained in step 3-2 with the remaining amount of the liquid oil.

[0083] [4] A production method comprising the steps of: Step 4-1, in which a mixture (4A) is obtained by mixing a hydrolyzed protein and / or a derivative thereof, a cationic surfactant, a portion of a liquid oil, and a portion of water; Step 4-2, in which a mixture (4B) is obtained by mixing the mixture (4A) obtained in Step 4-1 with the remaining amount of the liquid oil; and Step 4-3, in which a mixture (4C) is obtained by mixing the mixture (4B) obtained in Step 4-2 with the remaining amount of water.

[0084] [5] A production method comprising: a step 5-1 of obtaining a mixture (5A) by mixing a hydrolyzed protein and / or a derivative thereof, a cationic surfactant, and a portion of water; a step 5-2 of obtaining a mixture (5B) by mixing the mixture (5A) from the step 5-1 with a liquid oil; and a step 5-3 of obtaining a mixture (5C) by mixing the mixture (5B) from the step 5-2 with the remaining amount of water.

[0085] <<Hair composition>> The hair composition of the present embodiment may be in an appropriate formulation, such as a cream, emulsion, gel, etc. A gel or cream composition is easy to apply to hair.

[0086] The hair composition of the present embodiment may be, for example, [1] a composition prepared by blending the composition of the present embodiment as a premix raw material, or [2] the composition of the present embodiment itself. When the hair composition is in the form of [1], the liquid oil blended in the composition of the present embodiment has excellent dispersibility or solubility in water, making it possible to impart a highly uniform feel to hair.

[0087] The use of the hair composition of the present embodiment is not particularly limited as long as it is for hair, and examples thereof include hair care uses (e.g., shampoo, hair treatment, hair treatment with styling function, one component of multi-component hair treatment, hair treatment for pre-treatment of perm, hair treatment for post-treatment of perm, hair treatment for pre-treatment of hair coloring, hair treatment for post-treatment of hair coloring, hair treatment for pre-treatment of bleaching, hair treatment for post-treatment of bleaching, etc.), hair styling uses, hair color uses, permanent wave uses, straight perm uses, etc. The hair treatment may be a leave-in hair treatment or a rinse-off hair treatment.

[0088] In the method for treating hair with the hair composition of the present embodiment, a known hair treatment method can be appropriately adopted. For example, the following hair treatment method can be mentioned. A method of applying the hair composition of the present embodiment to hair that has been wet with water, and then drying the hair without rinsing the applied hair composition with water or after rinsing it with water. A method in which the hair composition of the present embodiment is applied to dry hair, and the applied hair composition is used without rinsing it off with water. A method of applying the hair composition of the present embodiment to dry hair, rinsing the applied hair composition with water, and then drying the hair before use. [Example]

[0089] The present invention will be described in detail below based on examples, but the present invention should not be construed as being limited by the descriptions in these examples.

[0090] (Examples 1 to 24, Comparative Examples 1 to 10) Compositions of Examples 1 to 24 and Comparative Examples 1 to 10 were produced and evaluated as follows.

[0091] (Production of compositions of Examples 1 to 24 and Comparative Examples 1 to 10) A commercially available product containing a hydrolyzed protein or its derivative selected from the group consisting of hydrolyzed keratin-containing products, hydroxypropyltrimonium hydrolyzed keratin-containing products, hydrolyzed silk-containing products, hydrolyzed casein-containing products, hydrolyzed collagen-containing products, cocodimonium hydroxypropyl hydrolyzed keratin-containing products, lauroyl hydrolyzed silk sodium-containing products, hydrolyzed silk ethyl-containing products, and (dihydroxymethylsilylpropoxy)hydroxypropyl hydrolyzed keratin-containing products, and carbomer, polyquaternium-10, polyquaternium-39, sodium laureth sulfate, cetrimonium chloride, stearamidopropyl dimethylamine, isododecane, dimethicone (1.5mm). 2 / s), dimethicone (2mm 2 The compositions of Examples 1 to 24 and Comparative Examples 1 to 10 were produced by the production process shown below using ingredients selected from the group consisting of methylparaben, methylparaben (methicone), ...

[0092] In Tables 1 to 11, the units of values ​​in the ingredient name columns are % by mass, and "-" indicates that the ingredient is not blended. The names of commercially available products containing hydrolyzed proteins or derivatives thereof used in producing the compositions of Examples 1 to 24 and Comparative Examples 2, 4, and 6 are listed at the bottom of Tables 1 to 11 (see *1 to *13). In addition, in the composition of Comparative Example 7 in Table 4, the "appropriate amount of potassium hydroxide" refers to the amount of potassium hydroxide that will give the composition of Comparative Example 7 a pH of 5.5, and the "amount of purified water that makes the total 100% by mass" refers to the amount of purified water that will give the composition of Comparative Example 7 a total of 100% by mass.

[0093] The compositions of Examples 1 to 24 were produced by the following production steps 1 to 3. (Step 1) A commercially available product containing a hydrolyzed protein or a derivative thereof, cetrimonium chloride, steartrimonium chloride, or stearamidopropyldimethylamine and lactic acid (90%), and approximately 0.6 to 1.2% by mass of purified water were placed in a 100 mL beaker and mixed to obtain Mixture 1. (Step 2) Add the mixture 1 obtained in Step 1 to the beaker containing isododecane and dimethicone (1.5 mm) used in the compositions of Examples 1 to 24. 2 / s), dimethicone (2mm 2 Each component selected from the group consisting of dimethicone (2mm / s), cyclopentasiloxane, dimethicone (highly polymerized), and dimethiconol (highly polymerized) was added little by little and mixed to obtain Mixture 2. Note that the dimethicone (highly polymerized) was mixed with isododecane or cyclopentasiloxane, and the dimethiconol (highly polymerized) was mixed with dimethicone (2mm / s). 2 / s) or mixed with cyclopentasiloxane was used. (Step 3) The remaining amount of water, phenoxyethanol, or fragrance was added to the beaker containing the mixture 2 obtained in step 2, depending on the composition of each example, and mixed to obtain each composition. For the compositions of Examples 1 to 11 and 15 to 24, mixing in steps 1 to 3 was carried out at room temperature while stirring by hand with a stirring rod. For the compositions of Examples 13 and 14, mixing in step 1 was carried out at room temperature while stirring by hand with a stirring rod, and mixing in steps 2 and 3 was carried out using a Disper. Mixing using a Disper was carried out using a Disper device (TK Robomix, manufactured by Primix Corporation) with a 4 cm Disper blade at 1500 rpm for 5 minutes at room temperature.

[0094] The compositions of Examples 1 to 24 produced by the above steps had a pH in the range of 5 to 7 at 25° C. and were creamy in appearance.

[0095] The compositions of Comparative Examples 1, 3, and 5 were produced using the same process as the compositions of Examples 1 to 24 above, except that no commercially available product containing hydrolyzed protein or its derivative was added in step 1 (mixing in steps 1 to 3 was performed by hand using a stirring rod at room temperature). The compositions of Comparative Examples 2, 4, and 6 were produced by the same process as the production process for the compositions of Examples 1 to 24 above, except that cetrimonium chloride, steartrimonium chloride, or stearamidopropyldimethylamine and lactic acid (90%) were not blended in step 1 (mixing in steps 1 to 3 was performed by hand using a stirring rod at room temperature). The compositions of Comparative Examples 7 to 10 were produced using the same process as the compositions of Examples 1 to 24 above, except that in step 1, carbomer, polyquaternium-10, polyquaternium-39, or sodium laureth sulfate was blended instead of a commercially available product containing hydrolyzed protein or a derivative thereof (mixing in steps 1 to 3 was carried out by hand using a stirring rod at room temperature).

[0096] (Rating 1) Using the compositions produced in Examples 1 to 24 and Comparative Examples 1 to 10, the presence or absence of separation immediately after production and after standing for 2 hours was confirmed to evaluate the dispersion stability of the liquid oil in the composition.

[0097] (Method for assessing whether separation occurs immediately after production) The compositions of Examples 1 to 24 and Comparative Examples 1 to 10 were evaluated for the presence or absence of separation immediately after production within one day after production. The evaluation was performed visually by an evaluator who routinely evaluates compositions according to the following evaluation criteria.

[0098] (Evaluation criteria) ○: No separation is observed in the composition ×: Separation is observed in the composition

[0099] (Method for evaluating whether separation occurs after 2 hours of standing) 2 g of each of the compositions produced in Examples 1 to 24 and Comparative Examples 1 to 9 was placed on a horizontal desk (the desk surface was made of phenolic resin) and allowed to stand at room temperature for 2 hours. The presence or absence of separation of the composition after 2 hours of standing was evaluated. Evaluation was performed visually by an evaluator who routinely evaluates compositions according to the following evaluation criteria. Photographs were also taken of the appearance of each of the compositions of Examples 1 to 24 and Comparative Examples 1 to 9 immediately after standing and after 2 hours of standing. As shown in the evaluation results in Table 4, the composition of Comparative Example 10 was evaluated as × for the presence or absence of separation immediately after production, and separation was observed in the composition, so the presence or absence of separation after leaving it to stand for 2 hours was not confirmed.

[0100] (Evaluation criteria) ○: No oil spillage observed in the composition after 2 hours of standing △: After 2 hours of standing, slight oil spitting was observed in the composition ×: After 2 hours of standing, some oil spitting was observed in the composition XX: After standing for 2 hours, significant oil spitting was observed in the composition.

[0101] (Rating 2) The compositions produced in Examples 1 to 24 were subjected to rheometer measurements to evaluate the storage modulus G' and loss modulus G''. The rheometer measurements were carried out for the compositions of Examples 1 to 14 within 7 days after production, and for the compositions of Examples 15 to 24 within 35 days after production.

[0102] (Rheometer measurement) The storage modulus G' and loss modulus G'' values ​​for the compositions of Examples 1 to 24 were measured using a rheometer (a stress-controlled rheometer "Rheo Stress 6000" manufactured by HAAKE) under the following measurement conditions.

[0103] (Measurement conditions) Measurement method: Stress-dependent dynamic viscoelasticity measurement Sensor: 35mm diameter, 2° tilt angle cone plate sensor Temperature: 25℃ Frequency: 1Hz Stress range: 0.1Pa to 1000Pa

[0104] Under the above measurement conditions, measurement data for the storage modulus G' and loss modulus G'' were obtained at 0.1 Pa intervals in the τ range of 0.2 Pa to 1 Pa. Then, the difference (G'-G'') between the storage modulus G' and the loss modulus G'' when τ was in the range of 0.2 Pa to 1 Pa was evaluated.

[0105] (Evaluation results: Example 1, Comparative Examples 1 and 2) Table 1 shows the compositions of Example 1 and Comparative Examples 1 and 2, as well as the results of Evaluation 1 (presence or absence of separation immediately after production and presence or absence of separation after leaving for 2 hours) and Evaluation 2 (storage modulus G' and loss modulus G'').

[0106] [Table 1]

[0107] The results shown in Table 1 show that the composition of Example 1 is superior in the evaluation of the presence or absence of separation after standing for 2 hours (dispersion stability of liquid oil) in Evaluation 1 compared to the compositions of Comparative Examples 1 and 2, which do not contain hydrolyzed protein and / or its derivatives or cationic surfactant. Furthermore, the composition of Example 1 has a positive value for G'-G'' when τ = 0.3 in the results of Evaluation 2, which indicates that the composition has better dispersion stability of liquid oil.

[0108] FIG. 1 shows photographs of the compositions of Example 1 and Comparative Examples 1 and 2 immediately after standing and after two hours of standing when an evaluation was conducted after standing for two hours. From the results shown in FIG. 1, the composition of Example 1 showed no oil spitting near the periphery of the composition immediately after standing and after two hours of standing. However, the compositions of Comparative Examples 1 and 2 showed oil spitting near the periphery of the composition after two hours of standing. From these results, it can be seen that the composition of Example 1 was superior to the compositions of Comparative Examples 1 and 2 in terms of dispersion stability of liquid oil after two hours of standing in Evaluation 1.

[0109] (Evaluation results: Example 2, Comparative Examples 3 and 4) Table 2 shows the compositions of Example 2 and Comparative Examples 3 and 4, as well as the results of Evaluation 1 (presence or absence of separation immediately after production and presence or absence of separation after leaving for 2 hours) and Evaluation 2 (storage modulus G' and loss modulus G'').

[0110] [Table 2]

[0111] The results shown in Table 2 show that the composition of Example 2 is superior to the compositions of Comparative Examples 3 and 4, which do not contain hydrolyzed protein and / or its derivatives or cationic surfactant, in terms of the presence or absence of separation after standing for 2 hours in Evaluation 1. Furthermore, the composition of Example 2 has a positive value for G'-G'' when τ = 0.3 in the results of Evaluation 2, which indicates that the composition has better dispersion stability of the liquid oil.

[0112] FIG. 2 shows photographs of the compositions of Example 2 and Comparative Examples 3 and 4 taken immediately after standing and after two hours when the presence or absence of separation after standing for two hours was evaluated. From the results shown in FIG. 2, the composition of Example 2 showed no oil spitting near the periphery of the composition immediately after standing and after two hours. However, the compositions of Comparative Examples 3 and 4 showed widespread oil spitting near the periphery of the composition after two hours of standing. These results demonstrate that the composition of Example 2 is superior to the compositions of Comparative Examples 3 and 4 in terms of the dispersion stability of liquid oil after two hours of standing (Evaluation 1).

[0113] (Evaluation results: Example 3, Comparative Examples 5 and 6) Table 3 shows the compositions of Example 3 and Comparative Examples 5 and 6, as well as the results of Evaluation 1 (presence or absence of separation immediately after production and presence or absence of separation after leaving for 2 hours) and Evaluation 2 (storage modulus G' and loss modulus G'').

[0114] [Table 3]

[0115] The results shown in Table 3 show that the composition of Example 3 is superior to the compositions of Comparative Examples 5 and 6, which do not contain hydrolyzed protein and / or its derivatives or cationic surfactant, in terms of the presence or absence of separation after standing for 2 hours in Evaluation 1. Furthermore, the composition of Example 3 has a positive value for G'-G'' when τ = 0.3 in the results of Evaluation 2, which indicates that the composition has better dispersion stability of the liquid oil.

[0116] FIG. 3 shows photographs of the compositions of Example 3 and Comparative Examples 5 and 6 taken immediately after standing and after two hours when the presence or absence of separation after standing for two hours was evaluated. From the results shown in FIG. 3, the composition of Example 3 showed no oil spitting near the periphery of the composition immediately after standing and after two hours. However, the composition of Comparative Example 6 showed oil spitting near the periphery of the composition immediately after standing, and the compositions of Comparative Examples 5 and 6 showed widely spread oil spitting near the periphery of the composition after two hours of standing. These results demonstrate that the composition of Example 2 is superior to the compositions of Comparative Examples 5 and 6 in terms of the dispersion stability of liquid oil after two hours of standing (Evaluation 1).

[0117] (Evaluation results: Example 1, Comparative Examples 7 to 10) Table 4 shows the compositions of Example 1 and Comparative Examples 7 to 10, as well as the results of Evaluation 1 (presence or absence of separation immediately after production and presence or absence of separation after leaving for 2 hours) and Evaluation 2 (storage modulus G' and loss modulus G'').

[0118] [Table 4]

[0119] The results shown in Table 4 show that the composition of Example 1 is superior to the compositions of Comparative Examples 7 to 9 in which carbomer, polyquaternium-10, polyquaternium-39, or sodium laureth sulfate was used instead of hydrolyzed protein and / or its derivatives in terms of the presence or absence of separation after standing for 2 hours in Evaluation 1. In addition, the composition of Comparative Example 10, in which sodium laureth sulfate was blended instead of hydrolyzed protein and / or its derivatives, showed separation immediately after production, and therefore was inferior to the composition of Example 1 in terms of the presence or absence of separation immediately after production in Evaluation 1.

[0120] FIG. 4 shows photographs of the compositions of Example 1 and Comparative Examples 7 to 9 taken immediately after standing and after two hours when the presence or absence of separation after standing for two hours was evaluated. From the results shown in FIG. 4, the composition of Example 1 showed no oil spitting near the periphery of the composition immediately after standing and after two hours. However, the composition of Comparative Example 7 showed oil spitting near the periphery of the composition immediately after standing. Furthermore, the compositions of Comparative Examples 7 to 9 showed oil spitting near the periphery of the composition after two hours of standing. Furthermore, the oil spitting from the composition of Comparative Example 7 was more widely dispersed than the compositions of Comparative Examples 8 and 9. These results demonstrate that the composition of Example 1 exhibits superior dispersion stability of liquid oil after standing for two hours (Evaluation 1) compared to the compositions of Comparative Examples 7 to 9.

[0121] (Evaluation Results: Examples 1, 4 to 6) Table 5 shows the compositions of Examples 1 and 4 to 6, as well as the results of Evaluation 1 (presence or absence of separation immediately after production and presence or absence of separation after standing for 2 hours) and Evaluation 2 (storage modulus G' and loss modulus G'').

[0122] [Table 5]

[0123] The results shown in Table 5 indicate that the compositions of Examples 1 and 4 to 6 are superior in terms of the presence or absence of separation after standing for 2 hours in Evaluation 1 compared to the compositions of Comparative Examples 1 to 10 shown in Tables 1 to 4. Furthermore, the results of Evaluation 2 show that the compositions of Examples 1 and 4 to 6 have a positive value for G'-G'' when τ=0.3, indicating that the compositions have better dispersion stability of the liquid oil.

[0124] Figure 5 shows photographs of the compositions of Examples 1 and 4 to 6 taken immediately after standing and after two hours when the presence or absence of separation after standing for two hours was evaluated. From the results shown in Figure 5, no oil spillage was observed near the periphery of the compositions of Examples 1 and 4 to 6 immediately after standing and after two hours of standing. From these results, it can be seen that the compositions of Examples 1 and 4 to 6 have superior dispersion stability of liquid oil after two hours of standing in Evaluation 1 compared to the compositions of Comparative Examples 1 to 9 shown in Figures 1 to 4.

[0125] (Evaluation results: Examples 1, 7, and 8) Table 6 shows the compositions of Examples 1, 7, and 8, as well as the results of Evaluation 1 (presence or absence of separation immediately after production and presence or absence of separation after standing for 2 hours) and Evaluation 2 (storage modulus G' and loss modulus G'').

[0126] [Table 6]

[0127] The results shown in Table 6 indicate that the compositions of Examples 1, 7, and 8 are superior in terms of the presence or absence of separation after standing for 2 hours in Evaluation 1 compared to the compositions of Comparative Examples 1 to 10 shown in Tables 1 to 4. Furthermore, the results of Evaluation 2 show that the compositions of Examples 1, 7, and 8 have a positive value for G'-G'' when τ=0.3, indicating that the compositions have better dispersion stability of the liquid oil.

[0128] Figure 6 shows photographs of the compositions of Examples 1, 7, and 8 taken immediately after standing and after two hours when the presence or absence of separation after standing for two hours was evaluated. From the results shown in Figure 6, the compositions of Examples 1, 7, and 8 showed no oil spillage near the periphery of the composition immediately after standing and after two hours. From these results, it can be seen that the compositions of Examples 1, 7, and 8 are superior in dispersion stability of liquid oil after two hours of standing in Evaluation 1 compared to the compositions of Comparative Examples 1 to 9 shown in Figures 1 to 4.

[0129] (Evaluation Results: Examples 1, 9 to 14) Tables 7 and 8 show the compositions of Examples 1 and 9 to 14, as well as the results of Evaluation 1 (presence or absence of separation immediately after production and presence or absence of separation after leaving for 2 hours) and Evaluation 2 (storage modulus G' and loss modulus G'').

[0130] [Table 7]

[0131] [Table 8]

[0132] The results shown in Tables 7 and 8 indicate that the compositions of Examples 1 and 9 to 14 are superior in terms of the presence or absence of separation after standing for 2 hours in Evaluation 1 compared to the compositions of Comparative Examples 1 to 10 shown in Tables 1 to 4. Furthermore, the compositions of Examples 1 and 9 to 14 have positive values ​​for G'-G'' when τ=0.3 in the results of Evaluation 2, indicating that the compositions have better dispersion stability of the liquid oil.

[0133] 7 and 8 show photographs of the compositions of Examples 9 to 14 taken immediately after standing and after two hours when the presence or absence of separation after standing for two hours was evaluated. From the results shown in FIGS. 7 and 8, the compositions of Examples 9 to 14 showed no oil spillage near the periphery of the composition immediately after standing and after two hours. These results demonstrate that the compositions of Examples 9 to 14 are superior in dispersion stability of liquid oil after two hours of standing (Evaluation 1) compared to the compositions of Comparative Examples 1 to 9 shown in FIGS. 1 to 4.

[0134] (Evaluation Results: Examples 15 to 24) Tables 9 to 11 show the compositions of Examples 15 to 24, as well as the results of Evaluation 1 (presence or absence of separation immediately after production and presence or absence of separation after standing for 2 hours) and Evaluation 2 (storage modulus G' and loss modulus G'').

[0135] [Table 9]

[0136] [Table 10]

[0137] [Table 11]

[0138] The results shown in Tables 9 to 11 indicate that the compositions of Examples 15 to 24 are superior in terms of the presence or absence of separation after standing for 2 hours in Evaluation 1 compared to the compositions of Comparative Examples 1 to 10 shown in Tables 1 to 4. Furthermore, the results of Evaluation 2 show that the compositions of Examples 15 to 24 have a positive value for G'-G'' when τ=0.3, indicating that the compositions have better dispersion stability of the liquid oil.

[0139] 9 to 11 show photographs of the compositions of Examples 15 to 24 taken immediately after standing and after two hours when the presence or absence of separation after standing for two hours was evaluated. From the results shown in Figs. 9 to 11, the compositions of Examples 15 to 24 showed no oil spillage near the periphery of the composition immediately after standing and after two hours. These results demonstrate that the compositions of Examples 15 to 24 are superior in dispersion stability of liquid oil after two hours of standing (Evaluation 1) compared to the compositions of Comparative Examples 1 to 9 shown in Figs. 1 to 4.

[0140] (Evaluation Results: Examples 1 to 24) The following Tables 12 to 14 show the evaluation results of Evaluation 2 (storage modulus G' and loss modulus G'') of the compositions of Examples 1 to 24 (τ=0.2 to 1).

[0141] [Table 12]

[0142] [Table 13]

[0143] [Table 14]

[0144] From the results of Evaluation 2 shown in Tables 12 to 14, it can be seen that the compositions of Examples 1 to 24 have positive values ​​for G'-G'' when τ = 0.2 or 0.3, and therefore have excellent dispersion stability of liquid oil. Furthermore, the compositions of Examples 1 to 3 and Examples 5 to 24 have positive values ​​for G'-G'' when τ = 0.4 or 0.5, and therefore have better dispersion stability of liquid oil than the composition of Example 4. Furthermore, the compositions of Examples 1 to 3, Example 5, Examples 7 to 13, and Examples 15 to 24 have positive values ​​for G'-G'' when τ = 0.6, and therefore have even better dispersion stability of liquid oil than the compositions of Examples 4, 6, and 14. Furthermore, for the compositions of Examples 1 to 3, 5, 7 to 8, 11 to 13, and 15 to 24, G'-G'' is a positive value when τ = 0.7, which indicates that the dispersion stability of the liquid oil in the compositions is even better than that of the compositions of Examples 4, 6, 9, and 14.

[0145] (Examples 25 to 28, Comparative Examples 11 to 14) Compositions of Examples 25 to 28 and Comparative Examples 11 to 14 were produced and evaluated as follows.

[0146] (Production of compositions of Examples 25 to 28 and Comparative Examples 11 to 14) The compositions of Examples 25 to 28 and Comparative Examples 11 to 14 were produced by the manufacturing process shown below using ingredients selected from a hydrolyzed keratin-containing product, a hydrolyzed casein-containing product, cetrimonium chloride, steartrimonium chloride, stearamidopropyl dimethylamine, isododecane, dimethicone (highly polymerized), dimethiconol (highly polymerized), cyclopentasiloxane, phenoxyethanol, lactic acid (90%) (a mixture of 90% by mass of lactic acid and 10% by mass of purified water), fragrance, and purified water to obtain the compositions shown in Tables 15 and 16. Dimethicone (highly polymerized) was dimethicone with an average degree of polymerization of 650 or more, and dimethiconol (highly polymerized) was dimethiconol with an average degree of polymerization of 650 or more.

[0147] In Tables 15 and 16, the units of the values ​​in the columns for component α and component β are % by mass, and "-" indicates that the component is not blended. As in Tables 1 to 11, the names of commercially available products containing the hydrolyzed proteins used are listed at the bottom of Tables 15 to 16 (see (*1) and (*7)). Furthermore, "component α:component β (mass ratio)" is the ratio of component α to component β in the compositions produced in the examples and comparative examples.

[0148] The compositions of Examples 25 to 28 were produced by the following production steps 1 to 3. (Step 1) A commercially available product containing a hydrolyzed protein or a derivative thereof, cetrimonium chloride, steartrimonium chloride, or stearamidopropyldimethylamine and lactic acid (90%), and a portion of purified water were placed in a beaker and mixed to obtain Mixture 1. (Step 2) Each component selected from isododecane, dimethicone (highly polymerized), and dimethiconol (highly polymerized) used in the compositions of Examples 1 to 24 was added little by little to the beaker containing the mixture 1 obtained in step 1, while mixing, to obtain mixture 2. Note that the dimethicone (highly polymerized) used was mixed with isododecane, and the dimethiconol (highly polymerized) used was mixed with cyclopentasiloxane. (Step 3) The remaining amount of water, phenoxyethanol, or fragrance was added to the beaker containing the mixture 2 obtained in step 2, depending on the composition of each example, and mixed to obtain each composition. The compositions of Examples 25 to 28 were prepared by manually stirring with a stirring rod at room temperature in steps 1 to 3, followed by mixing using a Disper mixer. Mixing using a Disper mixer was performed using a Disper mixer (TK Robomix, manufactured by Primix Corporation) with a 4 cm Disper mixer blade at 1500 rpm for 5 minutes at room temperature. was manufactured.

[0149] The compositions of Comparative Examples 11 to 14 were produced as follows (instead of producing a mixture of all components of component α in advance, all of component α and component β were blended and mixed using a disperser (a disperser device "TK Robomix" manufactured by Primix Corporation, with a disperser blade of 4 cm, was used, and the mixture was stirred and mixed at 1400 rpm for 1 minute). In this way, the compositions of Comparative Examples 11 to 14 were produced.

[0150] (Rating 3) The compositions produced in Examples 25 to 28 and Comparative Examples 11 to 14 were evaluated for the presence or absence of separation of liquid oil 10 minutes after production. The evaluation was carried out visually according to the following evaluation criteria.

[0151] (Evaluation criteria) ○: Liquid oil was emulsified and dispersed, and no separation of the oil and water phases was observed. ×: Separation of the oil and water phases was observed

[0152] (Evaluation results: Examples 25 to 28, Comparative Examples 11 to 14) Tables 15 and 16 show the compositions (concentrations of each component in component α, and the mixing ratio of component α and component β) of Examples 25 to 28 and Comparative Examples 11 to 14, and the results of Evaluation 3 (presence or absence of separation of liquid oil).

[0153] [Table 15]

[0154] [Table 16]

[0155] In Tables 15 and 16, the mixture of component α in Example 25 corresponds to the composition of Example 1, the mixture of component α in Example 26 corresponds to the composition of Example 8, the mixture of component α in Example 27 corresponds to the composition of Example 14, and the mixture of component α in Example 28 corresponds to the composition of Example 17. In the compositions of Examples 25 to 28, in which mixtures of these components α were prepared in advance and used as premix raw materials, no separation of the oil phase (liquid oil) was observed. On the other hand, in the compositions of Comparative Examples 11 to 14, in which the mixture of component α was not used as a premix raw material, separation of the oil phase (liquid oil) was observed. From the above results, it can be seen that when a composition in which G'-G'' is a positive value when the stress (τ) is 0.3 Pa is used as a premix raw material, the dispersion stability of the liquid oil is excellent.

Claims

1. The composition contains a hydrolyzed protein and / or a derivative thereof, a cationic surfactant, a liquid oil, and water, A composition in which the difference (G'-G'') between the storage modulus G' and the loss modulus G'' measured using a rheometer under the following measurement conditions is a positive value when the stress (τ) is 0.3 Pa. <Measurement conditions> Measurement method: Stress-dependent dynamic viscoelasticity measurement Sensor: Cone plate sensor with a diameter of 35 mm and an inclination angle of 2° Temperature: 25℃ Frequency: 1 Hz Stress range: 0.1 Pa to 1000 Pa

2. The composition according to claim 1 , wherein the amount of the liquid oil is 40% by mass or more.

3. 3. The composition according to claim 1, wherein the hydrolyzed protein and / or its derivative is one or more selected from the group consisting of hydrolyzed proteins, cationized hydrolyzed proteins, acylated hydrolyzed proteins, and silylated hydrolyzed proteins.

4. 3. The composition according to claim 1, wherein the hydrolyzed protein and / or derivatives thereof is hydrolyzed keratin and / or derivatives thereof.

5. 3. The composition according to claim 1, wherein the cationic surfactant is a mono-long chain quaternary ammonium salt, a dialkyldimethylammonium salt, and / or a fatty acid amidoamine.

6. 3. The composition according to claim 1, wherein the liquid oil is one or more selected from the group consisting of liquid silicone oil, liquid hydrocarbon, liquid ester oil, liquid ether oil, liquid fat, liquid wax, liquid higher alcohol, and liquid fatty acid.

7. A hair composition comprising the composition according to claim 1 or 2 blended as a premix raw material.

8. A method for treating hair using the hair composition according to claim 7.

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