Non-aqueous composition for hair and hair treatment method

Abstract

The invention relates to a non-aqueous composition for hair and a hair treatment method. The present invention addresses the problem of providing: a non-aqueous composition for hair, which has good finger-passing properties when drying hair; and a hair treatment method using the composition. [Solution] A non-aqueous hair composition obtained by blending (A) 15 mass% or more of a hydrocarbon having a kinematic viscosity of 1.38 mm2 / s or more and 13.0 mm2 / s or less at 37.8 DEG C, (B) a volatile non-cyclic silicone and / or isododecane, and (C) a highly polymerized methylpolysiloxane and / or a highly polymerized polydimethylsiloxane alcohol, the hair treatment method is a method using the non-aqueous composition for hair.

Description

Technical Field

[0001] The present invention relates to a non-aqueous composition for hair and a hair treatment method using the composition. Background Art

[0002] Treatment with a non-aqueous hair composition suitable as a leave-in conditioner can impart a different feel to hair than that of aqueous compositions. Volatile cyclic silicones are known as common ingredients in non-aqueous hair compositions, but their supply is sometimes considered unstable due to the increasing demand for cosmetics worldwide. In response to this, there is a need to reduce the use of volatile cyclic silicones. As one of the solutions, Patent Document 1 proposes a non-aqueous composition for skin or hair that contains a UV absorber and a liquid hydrocarbon.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 2021-75498 Summary of the Invention

[0006] Technical problem to be solved by the invention

[0007] Liquid hydrocarbons are considered as potential alternatives to volatile cyclic silicones, and isododecane, one such hydrocarbon, is considered a suitable, inexpensive alternative. However, the addition of isododecane has been shown to pose a technical problem, resulting in reduced finger-feeling properties of hair coated with a non-aqueous hair composition during drying.

[0008] In view of the above circumstances, an object of the present invention is to provide a non-aqueous composition for hair that has good finger-feeling properties when drying hair, and a hair treatment method using the composition.

[0009] Technical solutions to technical problems

[0010] The present inventors have conducted extensive research on a non-aqueous composition for hair and have found that if (A) is blended with a kinematic viscosity of 1.38 mm at 37.8°C, 2 / s or above and 13.0mm 2 A non-aqueous hair composition comprising (A) a hydrocarbon having a molecular weight of 100 μg / s or less, (B) a volatile acyclic silicone and / or isododecane, and (C) a highly polymerized methylpolysiloxane and / or highly polymerized dimethiconol, wherein the amount of component (A) is 15% by mass or more, provides good finger-feeling properties to hair applied with the composition when dried. Furthermore, the present inventors have found that the non-aqueous hair composition also provides good softness, smoothness, and moist feel to hair after drying.

[0011] The present invention includes the following [1] to

[13] .

[0012] [1] A non-aqueous composition for hair, comprising the following components (A), (B), and (C), wherein the amount of component (A) is 15% by mass or more.

[0013] (A) The kinematic viscosity at 37.8°C is 1.38 mm 2 / s or above and 13.0mm 2 Hydrocarbons below / s

[0014] (B) Volatile acyclic silicone and / or isododecane

[0015] (C) Highly polymerized methyl polysiloxane and / or highly polymerized dimethicone

[0016] [2] The non-aqueous composition for hair according to [1], wherein the amount of volatile cyclic silicone is less than 5% by mass or no volatile cyclic silicone is added. In the composition of the invention [2], the amount of volatile cyclic silicone, the supply of which is unstable, can be suppressed.

[0017] [3] The non-aqueous composition for hair according to [1] or [2], wherein the non-aqueous composition for hair comprises a styrene-based hair gel having a kinematic viscosity of 10.0 mm / s at 37.8°C. 2 / s or less hydrocarbon as the component (A). If the composition of [3] is applied, the finger-feeling property of the hair during the drying process and the softness, smoothness and moist feeling of the hair after drying are improved.

[0018] [4] The non-aqueous hair composition according to any one of [1] to [3], wherein the non-aqueous hair composition contains a light liquid isoparaffin as the component (A).

[0019] [5] The non-aqueous hair composition according to [4], wherein the light liquid isoparaffin is contained in an amount exceeding 10% by mass. According to the non-aqueous hair composition of [5], the finger-feeling property of the hair during the drying process after application of the composition is improved.

[0020] [6] The non-aqueous composition for hair according to any one of [1] to [5], wherein the volatile acyclic silicone has a kinematic viscosity at 25°C of 3.0 mm 2 / s or less.

[0021] [7] The non-aqueous hair composition according to any one of [1] to [6], wherein the non-aqueous hair composition comprises 10% by mass or more of a volatile non-cyclic silicone as the component (B). The non-aqueous hair composition according to [7] improves the finger-feeling properties of the hair during drying and the softness, smoothness, and moist feel of the hair after drying after application.

[0022] [8] The non-aqueous hair composition according to any one of [1] to [7], wherein the non-aqueous hair composition contains less than 35% by mass of isododecane as the component (B). The non-aqueous hair composition according to [8] improves the finger-feeling properties of the hair during drying after application of the composition, and the softness, smoothness, and moist feel of the hair after drying.

[0023] [9] The non-aqueous hair composition according to any one of [1] to [8], wherein the amount of component (C) is less than 15% by mass. The non-aqueous hair composition according to [9] improves the finger-feeling properties of the hair during drying after application of the composition, and the softness, smoothness, and moist feel of the hair after drying.

[0024]

[10] The non-aqueous hair composition according to any one of [1] to [9], wherein the non-aqueous hair composition contains less than 10% by mass of a highly polymerized methylpolysiloxane as the component (C). The non-aqueous hair composition according to

[10] improves the finger-feeling properties of the hair during drying and the softness, smoothness, and moist feel of the hair after drying after application.

[0025]

[11] The non-aqueous hair composition according to any one of [1] to

[10] , wherein the non-aqueous hair composition contains an amino-modified silicone. According to the non-aqueous hair composition of

[11] , application of the composition improves the finger-feeling properties of the hair during drying and the softness and moist feel of the hair after drying.

[0026]

[12] The non-aqueous composition for hair according to any one of [1] to

[11] , wherein the non-aqueous composition for hair is a leave-in conditioner.

[0027]

[13] A hair treatment method using the non-aqueous composition for hair according to any one of [1] to

[12] .

[0028] Effects of the Invention

[0029] According to the non-aqueous composition for hair of the present invention, the finger-feeling property of the hair during the drying process after application of the composition is improved.

[0030] Furthermore, according to the hair treatment method of the present invention, the finger-feeling property of the hair is improved during the drying process after application of the non-aqueous composition for hair. DETAILED DESCRIPTION

[0031] The present invention will be described below based on the embodiments of the present invention.

[0032] The non-aqueous hair composition according to this embodiment is a non-aqueous hair composition containing the following components (A), (B), and (C), wherein the component (A) is contained in a predetermined amount. Furthermore, the non-aqueous hair composition according to this embodiment may contain any of the components commonly found in non-aqueous hair compositions.

[0033] (A) Hydrocarbons of specified kinematic viscosity

[0034] (B) Volatile acyclic silicone and / or isododecane

[0035] (C) Highly polymerized methyl polysiloxane and / or highly polymerized dimethicone

[0036] The composition of this embodiment is non-aqueous. This "non-aqueous" refers to the composition having an oil phase as its external phase or lacking an aqueous phase. Furthermore, the addition of water tends to cause separation between the aqueous and oil phases, resulting in turbidity in the composition. Therefore, it is preferred not to add water. If water is added, the amount can be less than 3.0% by mass, preferably less than 1.0% by mass, more preferably less than 0.5% by mass, even more preferably less than 0.1% by mass, and even more preferably less than 0.05% by mass.

[0037] (Hydrocarbon having a specified kinematic viscosity as component (A))

[0038] The hydrocarbon as component (A) in the non-aqueous composition for hair of this embodiment has a kinematic viscosity of 1.38 mm at 37.8°C. 2 / s or above and 13.0mm 2 / s or less hydrocarbons. The kinematic viscosity can be 1.40mm 2 / s or more and 10.0mm 2 / s or less, preferably 1.40mm 2 / s or above and 8.0mm 2 / s or less, more preferably 1.40 mm 2 / s or more and 5.0mm 2 / s or less. If the kinematic viscosity is 1.40mm 2 / s or more of the component (A), the smoothness of the hair after drying becomes good, if 10.0mm 2 / s or less of the component (A), the finger-feeling property during hair drying and the softness, smoothness and moist feeling of the hair after drying are improved.

[0039] The hydrocarbon as component (A) may have a flash point of 50°C or higher, 55°C or higher, 60°C or higher, 70°C or higher, or 80°C or higher. Furthermore, to ensure good finger-feeling during hair drying and the softness, smoothness, and moist feel of the hair after drying, the flash point of the hydrocarbon as component (A) may be 110°C or lower, preferably 100°C or lower, and more preferably 95°C or lower. Flash point measurement can be performed using a known suitable method. For example, Japanese Industrial Standard JIS K 2265 discloses that the Tag closed cup method is suitable for flash point ranges below 93°C, while the Cleveland open cup method is suitable for flash point ranges exceeding 79°C.

[0040] Component (A) may be blended with one or more selected from known hydrocarbons. Examples of known hydrocarbons for component (A) include light isoparaffins, light liquid isoparaffins, undecane / tridecane, and (C13-15)alkanes. The amount of component (A) blended in the non-aqueous hair composition of this embodiment is 15% by mass or greater. To enhance the moist feel of hair after drying, it may be 20% by mass or greater, preferably 25% by mass or greater, more preferably 30% by mass or greater, even more preferably 35% by mass or greater, and even more preferably 40% by mass or greater. Furthermore, to enhance finger-feeling during hair drying and the softness and smoothness of hair after drying, the amount of component (A) blended may be 80% by mass or less, preferably 70% by mass or less, more preferably 60% by mass or less, and even more preferably 55% by mass or less.

[0041] Light liquid isoparaffins are also inexpensive among component (A) and are therefore suitable for inclusion in the non-aqueous hair composition of this embodiment. To enhance the moist feel of hair after drying, the amount of light liquid isoparaffins incorporated into the non-aqueous hair composition of this embodiment may exceed 10% by mass, preferably exceed 20% by mass, more preferably exceed 30% by mass, and even more preferably exceed 40% by mass. Furthermore, to enhance finger-feeling during hair drying and improve the softness and smoothness of hair after drying, the amount of light liquid isoparaffins incorporated may be 80% by mass or less, preferably 70% by mass or less, more preferably 60% by mass or less, and even more preferably 55% by mass or less.

[0042] (Component (B): Volatile Acyclic Silicone and / or Isododecane)

[0043] The non-aqueous hair composition of this embodiment contains, as component (B), a volatile acyclic silicone, isododecane, or a volatile acyclic silicone and isododecane. The non-aqueous hair composition of this embodiment may be omitted as long as either the volatile acyclic silicone or isododecane is contained. The inclusion of the highly volatile component (B) facilitates drying of hair coated with the non-aqueous hair composition of this embodiment.

[0044] The volatile non-cyclic silicone as component (B) is a silicone that does not have a cyclic skeleton in its molecular structure, as in volatile cyclic silicones such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane. The kinematic viscosity of the volatile non-cyclic silicone at 25°C is 3.0 mm 2 / s or less, in order to make hair drying easier, it can be 2.5mm 2 / s or less, preferably 2.0 mm 2 / s or less (the lower limit of the kinematic viscosity can be set to, for example, 1.0 mm 2 / s or more. ).

[0045] When a volatile acyclic silicone is added as component (B), one or more selected from known volatile acyclic silicones may be added. Examples of such volatile acyclic silicones include linear dimethylpolysiloxanes such as trisiloxane, branched silicones such as methyltrimethicone, and silicones having alkyl groups in their side chains such as ethylmethicone. When a volatile acyclic silicone is added as component (B) to the non-aqueous hair composition of this embodiment, the amount of the volatile acyclic silicone in the composition may be from 10% to 85% by mass, preferably from 15% to 70% by mass, more preferably from 20% to 60% by mass, and even more preferably from 30% to 50% by mass. When the amount of the volatile acyclic silicone is 10% by mass or more, it is suitable for improving the finger-feeling properties of the hair during drying and the softness and smoothness of the hair after drying. When it is 85% by mass or less, it is suitable for reducing the cost of the non-aqueous hair composition. Furthermore, when isododecane is added as component (B), the amount of the volatile acyclic silicone can be 10% by mass or less, 5% by mass or less, 3% by mass or less, or 1% by mass or less.

[0046] When isododecane is added as component (B) to the non-aqueous hair composition of this embodiment, the amount of isododecane can be 3% by mass or more and less than 35% by mass, preferably 5% by mass or more and less than 25% by mass, and more preferably 10% by mass or more and less than 15% by mass. An isododecane content of 3% by mass or more facilitates hair drying, while an isododecane content of less than 35% by mass improves finger-feeling during hair drying and enhances the softness, smoothness, and moist feel of the hair after drying. Furthermore, when a volatile acyclic silicone is added as component (B), the amount of isododecane can be less than 3% by mass, less than 1% by mass, less than 0.5% by mass, or less than 0.1% by mass.

[0047] (Component (C) Highly polymerized methyl polysiloxane and / or highly polymerized dimethiconol)

[0048] The non-aqueous hair composition of this embodiment contains, as component (C), a highly polymerized methylpolysiloxane, a highly polymerized dimethicone, or a combination of highly polymerized methylpolysiloxane and highly polymerized dimethicone. The non-aqueous hair composition of this embodiment may or may not contain highly polymerized methylpolysiloxane or highly polymerized dimethicone, as long as either highly polymerized methylpolysiloxane or highly polymerized dimethicone is contained. The inclusion of component (C) is suitable for improving the finger-feeling properties of the hair during drying, as well as the softness, smoothness, and moist feel of the hair after drying.

[0049] The amount of component (C) incorporated into the non-aqueous hair composition of this embodiment can be 1% by mass or more and less than 15% by mass, and preferably 2% by mass or more and less than 10% by mass. When the amount of component (C) is 1% by mass or more and less than 15% by mass, it is suitable for improving the finger-feeling properties of the hair during drying, as well as the softness, smoothness, and moist feel of the hair after drying.

[0050] The highly polymerized methylpolysiloxane as component (C) is a linear polymer having an average degree of polymerization of 650 or greater, with siloxane bonds as its backbone. One or more types of highly polymerized methylpolysiloxanes selected from known highly polymerized methylpolysiloxanes can be incorporated as component (C). The amount of highly polymerized methylpolysiloxane incorporated into the non-aqueous hair composition according to this embodiment can be 1% by mass or more and less than 15% by mass, 2% by mass or more and less than 10% by mass, or 3% by mass or more and less than 5% by mass. When the amount of component (C) is 1% by mass or more and less than 15% by mass, it is suitable for improving the finger-feeling properties of the hair during drying, as well as the softness, smoothness, and moist feel of the hair after drying.

[0051] The highly polymerized dimethicone used as component (C) is a linear polymer having a siloxane bond with terminal hydroxyl groups as its backbone and an average degree of polymerization of 650 or greater. One or more types of highly polymerized dimethicone selected from known highly polymerized dimethicones can be incorporated as component (C). The amount of highly polymerized dimethicone incorporated into the non-aqueous hair composition according to this embodiment can be 1% by mass or more and less than 15% by mass, 2% by mass or more and less than 10% by mass, or 3% by mass or more and less than 5% by mass. When the amount of component (C) is 1% by mass or more and less than 15% by mass, it is suitable for improving the finger-feeling properties of the hair during drying, as well as the softness, smoothness, and moist feel of the hair after drying.

[0052] (Optional ingredient)

[0053] The non-aqueous hair composition of this embodiment can contain any of the ingredients commonly found in known non-aqueous hair compositions. However, due to the unstable supply of volatile cyclic silicones such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane, it is preferable to avoid or limit the amount of volatile cyclic silicones contained in the non-aqueous hair composition of this embodiment. The amount of volatile cyclic silicone contained in the non-aqueous hair composition of this embodiment can be less than 5% by mass, preferably less than 3% by mass, more preferably less than 1% by mass, even more preferably less than 0.1% by mass, and even more preferably less than 0.05% by mass.

[0054] Furthermore, in order to suppress separation of the aqueous and oily phases, it is preferable to avoid incorporating highly hygroscopic ingredients such as ethanol, or to limit the amount of ethanol incorporated. The amount of ethanol incorporated into the non-aqueous hair composition of this embodiment may be less than 3% by mass, preferably less than 1% by mass, more preferably less than 0.5% by mass, further preferably less than 0.1% by mass, and even more preferably less than 0.01% by mass.

[0055] Examples of optional components that can be incorporated into the non-aqueous composition for hair of this embodiment include nonionic surfactants, cationic surfactants, anionic surfactants, amphoteric surfactants, higher alcohols, hydrocarbons (excluding those corresponding to components (A) and (B)), waxes, ester oils, vegetable oils, silicones (excluding those corresponding to components (B) and (C)), polymer compounds, ultraviolet absorbers, preservatives, chelating agents, fragrances, and colorants.

[0056] When silicone is added as an optional component, the addition of amino-modified silicone is suitable for improving the finger-feeling properties of hair during drying and the softness and moist feel of hair after drying. The amino-modified silicone may be one or more selected from known amino-modified silicones, examples of which include aminoethylaminopropylsiloxane-dimethylsiloxane copolymers and aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymers. The amount of amino-modified silicone in the non-aqueous hair composition of this embodiment may be from 0.05% to 1.5% by mass, preferably from 0.1% to 1.0% by mass, and more preferably from 0.1% to 0.5% by mass.

[0057] (Dosage Form)

[0058] The dosage form of the non-aqueous composition for hair of the present embodiment when used is not particularly limited, and examples thereof include liquid, cream, and mist.

[0059] (Viscosity)

[0060] The viscosity of the non-aqueous hair composition of this embodiment can be 50 mPa·s or greater and less than 5000 mPa·s, preferably 100 mPa·s or greater and less than 3000 mPa·s, more preferably 150 mPa·s or greater and less than 1000 mPa·s, even more preferably 200 mPa·s or greater and less than 800 mPa·s, and even more preferably 200 mPa·s or greater and less than 600 mPa·s. A viscosity of 50 mPa·s or greater provides good workability when applying the non-aqueous hair composition of this embodiment by hand, while a viscosity of less than 5000 mPa·s provides good penetration into the hair. The viscosity of the non-aqueous composition for hair of the present embodiment is measured using a rheometer [e.g., a rheometer "RheoStress 6000 (trade name)" manufactured by HAAKE] at a measurement temperature of 25° C., a cone-plate sensor diameter of 35 mm, an inclination angle of the cone-plate sensor of 2°, and a shear rate dγ / dt of 36 s. -1 The values are measured in the steady flow curve mode under the conditions of .

[0061] (use)

[0062] The non-aqueous hair composition of this embodiment is used as a hair treatment composition and can be used as a leave-in conditioner. In this use, the non-aqueous hair composition of this embodiment can be sprayed or applied by hand onto wet hair that has been towel-dried after shampooing, and then dried with warm air as needed, for example, on hair that has undergone chemical treatment (such as oxidative dyeing, bleaching, or curling treatments) or hair that has not undergone such treatments.

[0063] Example

[0064] Hereinafter, the present invention will be described in detail based on Examples, but the present invention is not to be limitedly interpreted based on the description of these Examples.

[0065] Non-aqueous hair compositions of Examples and Comparative Examples were prepared and evaluated during and after hair treatment. Details are as follows.

[0066] (Non-aqueous composition for hair)

[0067] As compositions for the Examples and Comparative Examples, non-aqueous hair compositions were prepared having the ingredients and blending amounts listed in Tables 1 to 6 below. The ingredients used in these preparations were: "PARLEAM 4" manufactured by NOF Corporation (light liquid isoparaffin (kinematic viscosity 3.1 mm 2 / s·37.8℃, flash point 96℃)), NOF Corporation's "PARLEAM 3" (light isoparaffin (kinematic viscosity 1.4mm 2 / s·37.8°C, flash point 61°C)), BASF Japan's "Cetiol Ultimate" (undecane / tridecane (flash point 74°C)), Nikko Chemical's "NEOSSANCE HEMISQUALANE" ((C13-15) alkane (flash point 110°C)), Moresco's "MORESCO WHITE P-70" (liquid paraffin (kinematic viscosity 13.5 mm 2 / s·37.8℃, flash point 130℃ or higher)), LANXESS Distribution's "PUROLAN IDD" (isododecane (kinematic viscosity 1.35 mm 2 / s·37.8℃, flash point 45℃)), KCC's "Sera Sence SF 1.5" (decamethyltetrasiloxane (1.5mm 2 / s·25℃)), Dow Toray's "DOWSIL BY 25-320" (containing 20% highly polymerized methyl polysiloxane and 80% light liquid isoparaffin), Dow Toray's "DOWSIL SH200C FLUID 5cst" (dimethyl polysiloxane (5mm 2 / s·25°C)), "XF42-C0330" (aminoethylaminopropylmethylsiloxane·dimethylsiloxane copolymer) manufactured by Momentive Performance Materials.

[0068] (Hair treatment)

[0069] A hair shampoo composition was rubbed into a wet hair tress with running water, lathered while combing, and then rinsed with running water. The hair tress was then immersed in a mixture of the hair shampoo composition and water at a mass ratio of 1:20 and ultrasonically cleaned for 30 minutes. The hair shampoo was then thoroughly rinsed with running water. Next, 0.2 g of either the Example or Comparative Example composition was applied to the wet hair tress, which had been wiped clean with a towel, and blended. The mixture was then dried with a hair dryer.

[0070] In addition, the details of the hair bundle and hair cleansing composition used for hair treatment are as follows.

[0071] Hair bundles: Hair collected from Japanese women was tied at one end. Each hair bundle was approximately 35 cm long and weighed approximately 10 g.

[0072] Hair cleansing composition: 10% by mass aqueous solution of sodium laureth sulfate "EMAL 227HP" manufactured by Kao Corporation

[0073] (evaluate)

[0074] Five panelists conducted sensory evaluations for "finger-through during drying," "softness after drying," "wet feel after drying," and "smoothness after drying." The "finger-through during drying" evaluation evaluated the finger-through feel of the hair tresses during the hair dryer drying process. The "softness after drying" evaluation evaluated the soft touch of the hair tresses after hair dryer drying. The "wet feel after drying" evaluation evaluated the wet touch of the hair tresses after hair dryer drying. The "smoothness after drying" evaluation evaluated the smooth touch of the hair tresses after hair dryer drying. Scores were assigned based on the panelists' evaluation scale, and the average of the scores was used as the evaluation.

[0075] The following Table 1 shows the components, blending amounts, and evaluation results of the compositions of Examples 1a to 1d and Comparative Examples 1a to 1b. Furthermore, the hydrocarbons described as component (A) in Table 1 all have a kinematic viscosity of 1.38 mm at 37.8°C. 2 / s~13.0mm 2 The evaluation criteria of the evaluators, which served as the basis for the evaluation results, were the following, with the reference being Comparative Example 1a.

[0076] Significantly better than the benchmark: 3 points

[0077] Better than benchmark: 2 points

[0078] Benchmark or equivalent to benchmark: 1 point

[0079] Worse than the benchmark: 0 points

[0080] [Table 1]

[0081]

[0082] Unit of compounding amount: mass %

[0083] Note) Based on the blending amount of "DOWSIL BY 25-320" manufactured by Dow Toray Co., Ltd.

[0084] Table 1 shows that Examples 1a to 1d, which contain components (A), (B), and (C) and contain 15% by mass or more of component (A), exhibit superior finger-through during drying, softness after drying, and smoothness after drying compared to Comparative Examples 1a and 1b, which contain less than 15% by mass of component (A). Furthermore, Comparative Examples 1a and 1b, which contain hydrocarbons other than component (A) (liquid paraffin or isododecane), exhibit inferior finger-through during drying, softness after drying, and smoothness after drying compared to Examples 1a to 1d, demonstrating the advantages of increasing the amount of component (A).

[0085] The following Table 2 shows the components, blending amounts, and evaluation results of the compositions of Example 2 and Comparative Example 2. The evaluation scale of the evaluators, which serves as the basis for the evaluation results and the average score, is as follows.

[0086] The best among Example 2 and Comparative Example 2: 3 points

[0087] Second best among Example 2 and Comparative Example 2: 1 point

[0088] [Table 2]

[0089]

[0090] Unit of compounding amount: mass %

[0091] Note) Based on the blending amount of "DOWSIL BY 25-320" manufactured by Dow Toray Co., Ltd.

[0092] In Table 2, Example 2 was superior to Comparative Example 2 in all evaluations, confirming that the incorporation of decamethyltetrasiloxane, a volatile acyclic silicone, was suitable for improving finger-through properties during drying, softness after drying, smoothness after drying, and moist feel after drying.

[0093] The components, blending amounts, and evaluation results of the compositions of Examples 3a to 3c are shown in Table 3. The evaluation scale of the evaluators, which served as the basis for the evaluation results and the average score, is as follows.

[0094] The best among Examples 3a to 3c: 3 points

[0095] Second best among Examples 3a to 3c: 2 points

[0096] The third best among Examples 3a to 3c: 1 point

[0097] [Table 3]

[0098]

[0099] Unit of compounding amount: mass %

[0100] Note) Based on the blending amount of "DOWS IL BY 25-320" manufactured by Dow Toray Co., Ltd.

[0101] A comparison of Examples 3a to 3c in Table 3 shows that increasing the amount of light liquid isoparaffin as component (A) improves the moist feel after drying. A comparison of Examples 3a to 3b with 3c shows that decreasing the amount of component (A) leads to an optimal improvement in finger-through during drying, softness after drying, and smoothness after drying. Furthermore, a comparison of Examples 3a to 3b with 3c shows that increasing the amount of component (B) leads to an optimal improvement in finger-through during drying, softness after drying, and smoothness after drying.

[0102] The components, blending amounts, and evaluation results of the compositions of Examples 4a and 4b are shown in Table 4. The evaluator's evaluation scale, which serves as the basis for the evaluation results, i.e., the average score, is as follows, with Example 4b as the reference.

[0103] Better than benchmark: 2 points

[0104] Benchmark or equivalent to benchmark: 1 point

[0105] Worse than the benchmark: 0 points

[0106] [Table 4]

[0107]

[0108] Unit of compounding amount: mass %

[0109] Note) Based on the blending amount of "DOWSIL BY 25-320" manufactured by Dow Toray Co., Ltd.

[0110] Table 4 shows that the optimal blending amount of the highly polymerized methylpolysiloxane as the component (C) is less than 10% by mass.

[0111] The components, blending amounts, and evaluation results of the compositions of Examples 5a to 5d are shown in Table 5. The evaluator's evaluation scale, which serves as the basis for the average score, or evaluation results, is as follows, with Example 5b as the reference.

[0112] Significantly better than the benchmark: 3 points

[0113] Better than benchmark: 2 points

[0114] Benchmark or equivalent to benchmark: 1 point

[0115] Worse than the benchmark: 0 points

[0116] [Table 5]

[0117]

[0118] Unit of compounding amount: mass %

[0119] Note) Based on the blending amount of "DOWSIL BY 25-320" manufactured by Dow Toray Co., Ltd.

[0120] Table 5 shows that the addition of amino-modified silicone (aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymer) is suitable for improving finger-feeling properties during drying, softness after drying, and moist feeling after drying.

[0121] The following Table 6 shows the components, blending amounts, and evaluation results of the compositions of Example 6 and Comparative Example 6. The evaluator's evaluation scale, which serves as the basis for the evaluation results, i.e., the average score, is as follows, with Comparative Example 6 being the benchmark.

[0122] Better than benchmark: 2 points

[0123] Benchmark or equivalent to benchmark: 1 point

[0124] Worse than the benchmark: 0 points

[0125] [Table 6]

[0126]

[0127] Unit of compounding amount: mass %

[0128] Note) Based on the blending amount of "DOWSIL BY 25-320" manufactured by Dow Toray Co., Ltd.

[0129] In Table 6, Example 6 was excellent in all evaluations compared to Comparative Example 6. When the compounding amount of component (A) was 15% by mass or more, it was confirmed that the compounding of isododecane and highly polymerized methyl polysiloxane was suitable for improving finger-through property during drying, softness after drying, smoothness after drying, and moist feeling after drying.

Claims

1. A non-aqueous composition for hair, characterized in that The following components (A), (B) and (C) are mixed, and the mixing amount of the following component (A) is 15% by mass or more, (A) The kinematic viscosity at 37.8°C is 1.38 mm 2 / s or above and 13.0mm 2 Hydrocarbons below / s; (B) volatile acyclic silicone and / or isododecane; (C) High-polymer methyl polysiloxane and / or high-polymer dimethiconol.

2. The non-aqueous composition for hair according to claim 1, wherein The amount of volatile cyclic silicone is less than 5% by mass or no volatile cyclic silicone is added.

3. The non-aqueous composition for hair according to claim 1 or 2, wherein The non-aqueous composition for hair has a kinematic viscosity of 10.0 mm at 37.8°C. 2 / s or less hydrocarbons as the component (A).

4. The non-aqueous composition for hair according to any one of claims 1 to 3, wherein The non-aqueous composition for hair contains a light liquid isoparaffin as the component (A).

5. The non-aqueous composition for hair according to claim 4, wherein The blending amount of the light liquid isoparaffin is more than 10% by mass.

6. The non-aqueous composition for hair according to any one of claims 1 to 5, wherein The kinematic viscosity of the volatile non-cyclic silicone at 25° C. is 3.0 mm 2 / s or less.

7. The non-aqueous composition for hair according to any one of claims 1 to 6, wherein The non-aqueous composition for hair contains 10% by mass or more of volatile acyclic silicone as the component (B).

8. The non-aqueous composition for hair according to any one of claims 1 to 7, wherein The non-aqueous composition for hair contains less than 35% by mass of isododecane as the component (B).

9. The non-aqueous composition for hair according to any one of claims 1 to 8, wherein The blending amount of the component (C) is less than 15% by mass.

10. The non-aqueous composition for hair according to any one of claims 1 to 9, wherein The non-aqueous composition for hair contains less than 10% by mass of highly polymerized methylpolysiloxane as the component (C).

11. The non-aqueous composition for hair according to any one of claims 1 to 10, wherein The non-aqueous composition for hair contains amino-modified silicone.

12. The non-aqueous composition for hair according to any one of claims 1 to 11, wherein The non-aqueous composition for hair is a leave-in conditioner.

13. A hair treatment method, characterized in that: The non-aqueous composition for hair according to any one of claims 1 to 12 is used.

Images