Non-aqueous composition and hair treatment method

Abstract

To provide a non-aqueous composition that is excellent at suppressing the occurrence or progression of turbidity, and a hair treatment method using the composition. [Solution] The non-aqueous composition contains volatile hydrocarbons, highly polymerized methylpolysiloxane, vegetable oil, and tar dyes, and the hair treatment method uses the non-aqueous composition containing volatile hydrocarbons, highly polymerized methylpolysiloxane, vegetable oil, and tar dyes.

Description

[Technical Field]

[0001] The present invention relates to a non-aqueous composition suitable for use as a cosmetic, such as for hair, and a hair treatment method using the composition. [Background technology]

[0002] Using a non-aqueous composition suitable as a leave-in treatment can impart a different feel to the hair compared to treatments using aqueous compositions. While volatile cyclic silicones such as decamethylcyclopentasiloxane are known as common ingredients in non-aqueous compositions, their supply is sometimes a concern due to the global increase in cosmetic demand. Under these circumstances, there is a need to reduce the amount of volatile cyclic silicones used.

[0003] Volatile hydrocarbons and volatile acyclic silicones are considered candidate alternative components for volatile cyclic silicones. As an example of a non-aqueous composition containing such candidate alternative components, Patent Document 1 discloses an oily hair cosmetic composition containing a volatile hydrocarbon oil, a vegetable oil, and dimethiconol with a viscosity of 10,000 mPa·s to 5,000,000 mPa·s at 25°C (see Claim 1 of Patent Document 1). [Prior art documents] [Patent Documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2008-273902 [Overview of the project] [Problems that the invention aims to solve]

[0005] Incidentally, when non-aqueous compositions are exposed to light, turbidity may occur or progress in the composition. Since the occurrence or progression of turbidity during the product manufacturing process or in the market can cause concerns about quality among manufacturers and consumers, there is a need for proposals of technologies to suppress its occurrence or progression.

[0006] In view of the above circumstances, the present invention aims to provide a non-aqueous composition that is excellent in suppressing the generation or progression of turbidity, and a hair treatment method using the composition. [Means for solving the problem]

[0007] As a result of diligent research by the inventors, it was found that turbidity in non-aqueous compositions containing volatile hydrocarbons occurs or progresses when vegetable oil is included, and that this occurrence or progression is more likely to occur when highly polymerized methylpolysiloxane is included. The inventors then discovered that by including a tar dye together with vegetable oil, the occurrence or progression of turbidity caused by vegetable oil can be suppressed, and thus completed the present invention.

[0008] In other words, the present invention includes non-aqueous compositions and hair treatment methods according to the following [1] to [8]. [1] A non-aqueous composition comprising the following components (A), (B), (C), and (D). (A) Volatile acyclic silicones and / or volatile hydrocarbons (B) High polymer methylpolysiloxane (C) Vegetable oil (D) Tar dyes

[0009] [2] The non-aqueous composition according to [1], wherein the amount of volatile cyclic silicone is less than 5% by mass or none at all. The composition according to the present invention [2] can reduce the amount of volatile cyclic silicone, which is subject to supply concerns.

[0010] [3] The non-aqueous composition according to [1] or [2], wherein the amount of component (C) is 3% by mass or less. According to the present invention [3], an upper limit is set on the amount of component (C) that causes the generation or progression of turbidity, so the generation or progression of turbidity is also suppressed.

[0011] [4] A non-aqueous composition according to any one of [1] to [3], wherein component (D) is one or more selected from Yellow 204, Violet 201, Green 202, Blue 1, Red 106, Red 230 (1), Red 504, and Orange 205. Among the inventions [4], Yellow 204, Violet 201, Green 202, Red 504, and Orange 205 are excellent in maintaining the color of the non-aqueous composition by tar dyes when exposed to light.

[0012] [5] A non-aqueous composition according to any one of [1] to [4] used for hair treatment. According to the present invention [5], the feel of a non-aqueous hair composition can be imparted to the hair.

[0013] [6] The non-aqueous composition according to any one of [1] to [5], wherein the amount of volatile acyclic silicone, which is component (A), is 10% by mass or more.

[0014] [7] A non-aqueous composition according to any one of [1] to [6], wherein the amount of volatile hydrocarbon component (A) is 10% by mass or more.

[0015] [8] A non-aqueous composition according to any one of [1] to [7], wherein the amount of component (A) is 30% by mass or more. According to the present invention [8], the amount of volatile cyclic silicone, which is subject to supply concerns, can be reduced.

[0016] A hair treatment method using a non-aqueous composition described in any of [9], [1] to [8]. [Effects of the Invention]

[0017] According to the non-aqueous composition of the present invention, since a tar dye is incorporated, even when a highly polymerized methylpolysiloxane is incorporated, it is excellent at suppressing the occurrence or progression of turbidity associated with the incorporation of vegetable oil.

[0018] According to the hair treatment method of the present invention, a non-aqueous composition that is excellent at suppressing the occurrence or progression of turbidity is used, thus reducing consumer concerns about quality.

Mode for Carrying Out the Invention

[0019] Based on the embodiments of the present invention, the present invention will be described below. The non-aqueous composition according to this embodiment is a composition in which the following components (A), (B), (C), and (D) are blended. In addition, as optional components, components blended in known non-aqueous hair compositions may be blended in the non-aqueous composition according to this embodiment. (A) Volatile acyclic silicone and / or volatile hydrocarbon (B) Highly polymerized methylpolysiloxane (C) Vegetable oil (D) Tar pigment

[0020] Although the composition of this embodiment is non-aqueous, this "non-aqueous" means that the external phase of the composition does not have an oil phase or an aqueous phase. And, since adding water easily causes separation of the aqueous phase and the oil phase and turbidity of the composition, it is preferable not to add water. When water is added, the blending amount thereof is preferably less than 3.0% by mass, more preferably less than 1.0% by mass, still more preferably less than 0.5% by mass, further more preferably less than 0.1% by mass, and even more preferably less than 0.05% by mass.

[0021] (Component (A) Volatile acyclic silicone and / or volatile hydrocarbon) In the non-aqueous composition of this embodiment, a volatile acyclic silicone, a volatile hydrocarbon, or a volatile acyclic silicone and a volatile hydrocarbon are blended as component (A). Component (A) is suitable as an alternative component to volatile cyclic silicones such as decamethylcyclopentasiloxane.

[0022] The blending amount of component (A) in the non-aqueous composition of this embodiment is preferably 30% by mass or more, more preferably 55% by mass or more, still more preferably 70% by mass or more, further more preferably 80% by mass or more, and even more preferably 90% by mass or more in order to reduce the blending amount of volatile cyclic silicones. Also, the blending amount is preferably 98% by mass or less, more preferably 95% by mass or less, and still more preferably 93% by mass or less in order to increase the blending amounts of other components.

[0023] The volatile acyclic silicone component (A) does not have a cyclic skeleton in its molecular structure, unlike volatile cyclic silicones such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane.

[0024] The above-mentioned volatile acyclic silicone may be a blend of one or more types selected from known volatile acyclic silicones. Examples of such volatile acyclic silicones include linear dimethylpolysiloxanes such as trisiloxane, branched silicones such as methyl trimethicone, and silicones having alkyl groups as side chains such as ethyl methicone. Furthermore, the kinematic viscosity of the above-mentioned volatile acyclic silicone at 25°C is 3.0 mm². 2 The temperature is less than / s, and to make drying hair and other materials easier during use, a 2.5mm diameter is recommended. 2 / s or less is preferable, 2.0mm 2 Preferably less than / s (the lower limit of kinematic viscosity is set to, for example, 1.0 mm) 2 It should be at least / s.

[0025] In the non-aqueous composition of this embodiment, when a volatile acyclic silicone, which is component (A), is incorporated, the amount of volatile acyclic silicone in the composition is preferably 10% by mass or more, more preferably 30% by mass or more, more preferably 50% by mass or more, and even more preferably 70% by mass or more, in order to reduce the amount of volatile cyclic silicone. Furthermore, in order to reduce the cost of the non-aqueous composition, the amount of volatile acyclic silicone is preferably 80% by mass or less, more preferably 60% by mass or less, more preferably 50% by mass or less, and even more preferably 40% by mass or less.

[0026] The volatile hydrocarbon component (A) may be one or more types selected from known volatile hydrocarbons. Examples of such volatile hydrocarbons include isododecane, light liquid isoparaffin, and undecane / tridecane. The boiling point of the volatile hydrocarbon at atmospheric pressure may be 260°C or lower or 265°C or lower. Furthermore, to facilitate the drying of hair and other materials during use, the kinematic viscosity of the volatile hydrocarbon at 37.8°C should be 5.0 mm². 2 A value of less than / s is preferable, and 4.0mm 2 A value of / s or less is preferable.

[0027] In the non-aqueous composition of this embodiment, the amount of component (A) is preferably 10% by mass or more, more preferably 30% by mass or more, more preferably 50% by mass or more, even more preferably 70% by mass or more, and even more preferably 90% by mass or more, in order to reduce the amount of volatile cyclic silicone. Furthermore, from the viewpoint of increasing the amount of other components, the amount of volatile hydrocarbon is preferably 90% by mass or less, more preferably 70% by mass or less, more preferably 50% by mass or less, and even more preferably 30% by mass or less.

[0028] (Component (B) Highly polymerized methylpolysiloxane) The non-aqueous composition of this embodiment contains a highly polymerized methylpolysiloxane as component (B). Although component (B) is suitable for improving hair smoothness and other properties, it tends to cause turbidity or the progression of turbidity. However, in the non-aqueous composition of this embodiment, component (D) suppresses the occurrence or progression of such turbidity.

[0029] The non-aqueous composition of this embodiment may contain one or more highly polymerized methylpolysiloxanes as component (B). The amount of component (B) in the non-aqueous composition of this embodiment is preferably 1% by mass or more and less than 15% by mass, and more preferably 2% by mass or more and less than 10% by mass. If the amount of component (B) is 1% by mass or more and less than 15% by mass, it is suitable for improving the manageability of the hair when drying, as well as the softness, smoothness, and moistness of the hair after drying.

[0030] The highly polymerized methylpolysiloxane, which is component (B), is a linear polymer with an average degree of polymerization of 650 or more, with siloxane bonds as its backbone. It is preferable to incorporate one or more types selected from known highly polymerized methylpolysiloxanes as component (B). The amount of the highly polymerized methylpolysiloxane in the non-aqueous composition according to this embodiment is preferably 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. If the amount of component (B) is 1% by mass or more and less than 15% by mass, it is suitable for improving the manageability of the hair when drying, as well as the softness, smoothness, and moistness of the hair after drying.

[0031] (Component (C) vegetable oil) The non-aqueous composition of this embodiment contains a vegetable oil, which is a fat mainly composed of triesters of fatty acids and glycerin, as component (C). Liquid vegetable oils that are fluid at 25°C and solid vegetable oils that are not fluid at 25°C ("solid" means those that are not fluid, and semi-solids are also included as solids as long as they are not fluid) both correspond to component (C) in this embodiment.

[0032] The non-aqueous composition of this embodiment contains a liquid vegetable oil, a solid vegetable oil, or a mixture of a liquid vegetable oil and a solid vegetable oil as component (C). This component (C) is a vegetable oil selected from known vegetable oils, and examples include almond oil, avocado oil, olive oil, kukui nut oil, rice bran oil, corn oil, safflower oil, shea butter, shea butter oil, evening primrose oil, passionflower seed oil, camellia oil, peach kernel oil, baobab seed oil, babassu oil, palm kernel oil, peanut oil, sunflower oil, grape seed oil, hazelnut oil, macadamia nut oil, meadowfoam oil, and rosehip oil.

[0033] The non-aqueous composition of this embodiment contains one or more vegetable oils as component (C). From the viewpoint of providing a feel to the hair, the amount of component (C) in the non-aqueous composition of this embodiment is preferably 0.001% by mass or more, preferably 0.005% by mass or more, more preferably 0.03% by mass or more, even more preferably 0.1% by mass or more, and even more preferably 0.3% by mass or more. Furthermore, from the viewpoint of suppressing the occurrence or progression of turbidity, the amount of component (C) is preferably 3% by mass or less, preferably 2% by mass or less, more preferably 1.5% by mass or less, even more preferably 1.0% by mass or less, and even more preferably 0.5% by mass or less.

[0034] (Component (D): Tar dye) The non-aqueous composition of this embodiment contains a tar dye as component (D). Component (D) suppresses the occurrence or progression of turbidity caused by the inclusion of vegetable oil, which is component (C).

[0035] The above-mentioned "tar dyes" are specified in the Ministry of Health and Welfare Ordinance No. 30 of August 31, 1966, "Ordinance Specifying Tar Dyes That Can Be Used in Pharmaceuticals, etc." Examples of such tar dyes include Yellow No. 204, Violet No. 201, Green No. 202, Blue No. 1, Red No. 106, Red No. 230 (1), Red No. 504, and Orange No. 205. Among these tar dyes, Yellow No. 204, Violet No. 201, Green No. 202, Red No. 504, and Orange No. 205 are excellent in maintaining the color of the non-aqueous composition of this embodiment when exposed to light.

[0036] The non-aqueous composition of this embodiment may contain one or more tar dyes selected from component (D). The amount of component (D) in the non-aqueous composition of this embodiment is: A concentration of 0.00001% by mass or more and less than 0.5% by mass is preferable, 0.0001% by mass or more and less than 0.1% by mass is more preferable, and 0.0005% by mass or more and less than 0.001% by mass is more preferable. A concentration of 0.00001% by mass or more is suitable for suppressing the occurrence or progression of turbidity caused by the blending of vegetable oil, which is component (C), and a concentration of less than 0.5% by mass is suitable for reducing the cost of non-aqueous compositions. When blending tar dyes, it is convenient to dissolve the dye in ethanol or the like before blending.

[0037] (optional ingredient) The non-aqueous composition of this embodiment may contain, as optional components, components that are used in known non-aqueous hair compositions.

[0038] The non-aqueous composition of this embodiment may optionally contain volatile cyclic silicones such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane. However, due to supply concerns, it is preferable to avoid including volatile cyclic silicones, either by omitting them or limiting their amount. The amount of volatile cyclic silicone in the non-aqueous composition of this embodiment is preferably less than 5% by mass, more 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.

[0039] Optional components that can be incorporated into the non-aqueous composition of this embodiment include, for example, nonionic surfactants, cationic surfactants, anionic surfactants, amphoteric surfactants, higher alcohols, hydrocarbons (other than those corresponding to component (A)), waxes, ester oils, silicones (other than those corresponding to components (A) and (B)), polymer compounds, ultraviolet absorbers, preservatives, chelating agents, and fragrances.

[0040] (Dosage form) The dosage form of the non-aqueous composition of this embodiment is not particularly limited and may be, for example, liquid, cream, or mist.

[0041] (viscosity) The viscosity of the non-aqueous composition of this embodiment, when measured using a B-type viscometer (temperature: 25°C, rotor: appropriately set according to viscosity, rotor rotation speed: appropriately set according to viscosity), is preferably 1,000 mPa·s to 20,000 mPa·s, more preferably 3,000 mPa·s to 15,000 mPa·s, more preferably 4,000 mPa·s to 12,000 mPa·s, and even more preferably 5,000 mPa·s to 10,000 mPa·s. A viscosity of 1,000 mPa·s or higher helps to prevent dripping when taken in the hand, and a viscosity of 20,000 mPa·s or lower makes it easier to spread on the surface of hair. When used as a spray, the viscosity is preferably less than 10,000 mPa·s from the viewpoint of facilitating spraying.

[0042] (Application) The non-aqueous composition of this embodiment is preferably used as a hair treatment composition. The hair treatment method in this use is, for example, use as a leave-in treatment. When using it, it is intended for hair with a history of chemical treatment (such as oxidative dyeing, bleaching, or hair straightening) or hair without such treatment history. For example, the non-aqueous composition of this embodiment is sprayed or applied by hand to dry hair or damp hair that has been towel-dried after washing, and then dried with warm air as needed.

[0043] When the non-aqueous composition of this embodiment is used as a product, the product comprises, for example, the non-aqueous composition of this embodiment and a container for containing the composition. Even if the container is a light-transmitting, semi-transparent or transparent container, it is possible to prevent the product user from noticing the occurrence or progression of turbidity. [Examples]

[0044] The present invention will be described in detail below based on examples, but the present invention should not be interpreted as being limited based on the description of these examples.

[0045] Examples, comparative examples, and reference examples of non-aqueous compositions that can be used as non-rinse treatments for hair were prepared, and an evaluation was conducted on the suppression of the progress of turbidity in these compositions. The details are as follows.

[0046] (Non-aqueous composition) As the compositions of the examples, comparative examples, and reference examples, non-aqueous compositions with the components and blending amounts described in Tables 1 to 5 below were prepared (note that the ethanol solutions of tar dyes such as the ethanol solution of Yellow No. 204 in each table are ethanol solutions with 0.1% by mass of the tar dye). The components used in this production were decamethyltetrasiloxane (kinematic viscosity at 25°C: 1.5 mm 2 / s), light fluid isoparaffin (kinematic viscosity at 37.8°C: 2.6 mm 2 / s), isododecane, mixed raw material 1 (「XF49-B2317」manufactured by Momentive Performance Materials, a mixture of light fluid isoparaffin and highly polymerized methylpolysiloxane), mixed raw material 2 (「Silsoft B3020」manufactured by Momentive Performance Materials, a mixture of isododecane and highly polymerized methylpolysiloxane), evening primrose oil (「EVENING PRIMROSE OIL REFINED」manufactured by TEXTRON Tecnica), baobab seed oil (「CremerVERO Baobab Oil Organic」manufactured by Cremer Oleo), Yellow No. 204, Violet No. 201, Green No. 202, Blue No. 1, Red No. 106, (1) Red No. 504, Orange No. 205, ethanol, isostearyl isostearate, cyclohexane-1,4-dicarboxylic acid bisethoxydiglycol are as follows.

[0047] (Evaluation of suppression of progress of turbidity) Each non-aqueous composition was poured into a transparent vial (height approximately 78 mm, diameter 35 mm), and the container was sealed. Then, light irradiation was performed on the container (using a xenon weather meter 「XT750L」manufactured by Suga Test Instruments Co., Ltd., with an ultraviolet intensity of 9.4 W / m 2The experiment was conducted at a temperature of 25°C. The light irradiation time was 24 hours for the examples and comparative examples listed in Tables 1-4 below, and 34 hours for the comparative examples and reference examples listed in Table 5 below.

[0048] The containers were photographed before and after light irradiation, and the suppression of turbidity progression in the non-aqueous composition due to light irradiation was evaluated as follows.

[0049] The following criteria were used for evaluation in the examples shown in Tables 1-3. ◎: The degree of turbidity progression is less than the standard. ○: The degree of turbidity progression is slightly less than the standard. ×: Standard (Turbidity progresses with light irradiation)

[0050] The following criteria were used for evaluation in the comparative examples shown in Tables 4-5. ◎: Turbidity is not progressing. ○: The degree of turbidity progression is less than the standard. ×: Standard (Turbidity progresses with light irradiation) ××: The degree of turbidity progression is greater than the standard.

[0051] (Evaluation of pigmentation) Based on the container images taken after light irradiation in the "Evaluation of Suppression of Turbidity Progression" described above, the color retention by tar dyes in non-aqueous hair compositions was evaluated. The evaluation was performed on the examples shown in Tables 1-3, and the evaluation criteria were as follows. ○: The tar dye stain remains. ×: No tar dye coloring remains.

[0052] Table 1 below shows the components, amounts, evaluation of turbidity progression suppression, and evaluation of pigment coloration for the compositions of Examples 1a to 1h and Comparative Example 1. In Table 1, <1> Examples 1a to 1h, which contained component (D), showed a more suppressed progression of turbidity compared to Comparative Example 1, which did not contain component (D). <2> Among Examples 1a to 1h, Examples 1a to 1c showed more suppressed turbidity progression than Examples 1d to 1h. <3> Regarding coloration by tar dyes, it can be confirmed that coloration remained in Examples 1a-1c and 1g-1h, but not in Examples 1d-1f. <1> The fact that the inclusion of component (B) promotes the progression of turbidity can be confirmed by referring to comparative examples 4a to 4b in Table 4 below.

[0053] [Table 1]

[0054] Table 2 below shows the components, amounts, evaluation of turbidity progression suppression, and evaluation of pigment coloration for the compositions of Examples 2a-2b and Comparative Example 2. In Table 2, as with Table 1 above, it can be confirmed that Examples 2a-2b, which contained component (D), showed more suppression of turbidity progression than Comparative Example 2, which did not contain component (D).

[0055] [Table 2]

[0056] Table 3 below shows the components, amounts, evaluation of turbidity progression suppression, and evaluation of pigment coloration for the compositions of Example 3 and Comparative Example 3. Similar to Tables 1 and 2 above, Table 3 also confirms the suppression of turbidity progression due to the inclusion of component (D).

[0057] [Table 3]

[0058] Table 4 below shows the components, amounts, and evaluation results for the suppression of turbidity progression of the compositions related to Comparative Examples 4a to 4b. In Table 4, it can be confirmed that the inclusion of component (B) promoted the progression of turbidity.

[0059] [Table 4]

[0060] Table 5 below shows the components, amounts, and evaluation results for the suppression of turbidity progression of the compositions related to Examples 5a-5b and Reference Examples 1-3. In Table 5, <1> Comparative Examples 5a-5b, which contained component (C), showed more turbidity than Reference Example 1, which did not contain component (C). <2> On the other hand, it can be confirmed that Reference Examples 2 and 3, which contain oily components other than component (C), such as isostearyl isostearate, yielded evaluation results equivalent to those of Reference Example 1.

[0061] [Table 5]

Claims

1. A non-aqueous composition containing the following components (A), (B), (C), and (D). (A) Volatile acyclic silicones and / or volatile hydrocarbons (B) Highly polymerized methylpolysiloxane (C) Vegetable oil (D) Tar dyes

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

3. The non-aqueous composition according to claim 1 or 2, wherein the amount of component (C) is 3% by mass or less.

4. The non-aqueous composition according to claim 1 or 2, wherein the component (D) is one or more selected from Yellow 204, Violet 201, Green 202, Blue 1, Red 106, Red 230 (1), Red 504, and Orange 205.

5. A non-aqueous composition according to claim 1 or 2, used for hair treatment.

6. The non-aqueous composition according to claim 1 or 2, wherein the amount of volatile acyclic silicone, which is component (A), is 10% by mass or more.

7. The non-aqueous composition according to claim 1 or 2, wherein the amount of volatile hydrocarbon, which is component (A), is 10% by mass or more.

8. The non-aqueous composition according to claim 1 or 2, wherein the amount of component (A) is 30% by mass or more.

9. A hair treatment method using the non-aqueous composition described in claim 1 or 2.

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