JP6047067B2 - Hair treatment - Google Patents

Description

  The present invention relates to a hair treatment agent used in a mode of washing off after being applied to hair.

  It is known that cleansing oil is blended with liquid hydrocarbons such as liquid paraffin as a component for removing cosmetics such as lipsticks, foundations and mascaras. For example, Patent Document 1 relating to a transparent cosmetic composition discloses a cleansing oil in which a nonionic surfactant, a liquid ester oil and water are blended with hydrogenated polyisobutene (see paragraph 0035), and relates to a skin cleanser. Patent Document 2 discloses a cleansing oil in which a nonionic surfactant, a liquid ester oil, and water are blended with liquid paraffin (see paragraph 0024).

  Liquid hydrocarbons may be blended in compositions that are applied to the hair. For example, Patent Document 3 relating to a hair cosmetic that reinforces the internal structure of damaged hair discloses a hair cosmetic used in a non-washing manner in which liquid vegetable oil, silicone oil, and nonionic surfactant are blended with liquid paraffin. (Paragraph 0040), Patent Document 4 relating to a hair care composition discloses a rinse-off type aqueous hair care composition in which heavy liquid isoparaffin, amino-modified silicone and a cationic surfactant are blended (paragraphs 0023 to 0036). ).

JP 2013-35828 A JP 2008-106060 A JP 2009-67781 A JP 2007-320871 A

  As mentioned above, as described above, the hair treatment agent used in a mode of being applied to the hair and washed away may contain liquid hydrocarbons. A transparent appearance is required depending on preference. When a transparent hair treatment agent is applied to the hair and used, it is possible to make a judgment on the end of washing away from the hair depending on the feel of the hair. However, if it is possible to rely on the visual sense as well as the tactile sensation, it will be useful for preventing the hair treatment agent from being left behind. Visual judgment is thought to be particularly useful for hairdressers who treat other people's long hair. Moreover, although it is calculated | required irrespective of whether the treatment agent for hair is transparent, it is desired that the treatment agent for hair is stable over time.

  In view of the above circumstances, the present invention aims to provide a hair treatment agent that is blended with liquid hydrocarbons, has a transparent appearance, can visually confirm washing, and further has improved stability over time. To do.

  As a result of intensive studies on the treatment agent for hair used by the present inventors in the form of washing away containing liquid hydrocarbons, it is transparent if the selection and blending amount of liquid ester oil and nonionic surfactant are appropriately set. When diluted with water, a turbid appearance can be realized and the stability over time has been found, and the present invention has been completed.

  That is, the hair treatment agent according to the present invention is selected from (A) liquid hydrocarbons, (B) liquid ester oils of branched alcohols and linear fatty acids, and liquid ester oils of linear alcohols and branched fatty acids. One or two or more kinds of liquid ester oils and (C) nonionic surfactants are blended, and are transparent before use. It is characterized by.

  The treatment agent for hair according to the present invention is preferably one in which liquid paraffin is blended as the liquid hydrocarbon (A). When liquid paraffin is blended, it is excellent in removal of oil from the scalp and hair and ease of massage of the scalp.

The (B) liquid ester oil may be a liquid ester oil having 17 to 26 carbon atoms. As the liquid ester oil having 17 to 26 carbon atoms, for example, one selected from liquid ester oil b1 represented by the following general formula (b1) and liquid ester oil b2 represented by the following general formula (b2) or It is good to mix | blend 2 or more types with the processing agent for hair which concerns on this invention.
R ¹ COOR ² (b1)
[In the general formula (b1), R ¹ CO represents an acyl group having 8 to 18 carbon atoms in which R ¹ is a branched alkyl group, and R ² represents a linear alkyl group having 2 to 18 carbon atoms. . ]
R ³ COOR ⁴ (b2)
[In the general formula (b2), R ³ CO represents an acyl group having 12 to 18 carbon atoms in which R ³ is a linear alkyl group, and R ⁴ represents a branched alkyl group having 3 to 8 carbon atoms. . ]

  The total amount of (A) liquid hydrocarbon and (B) liquid ester oil in the hair treatment agent of the present invention is, for example, 40% by mass or more.

  The hair treatment agent of the present invention is preferably such that (D) polyhydric alcohol and (E) water are blended, and the total blending amount of (D) polyhydric alcohol and (E) water is 10% by mass or less. . When the content is within this range, it is easy to produce a product having a transparent appearance.

  Moreover, the blending amount (C) / [(D) + (E)] of the (C) nonionic surfactant with respect to the total blending amount of the (D) polyhydric alcohol and the (E) water is 3 or more. And good. With this blending ratio, it is easy to produce a product having a transparent appearance.

  According to the hair treatment agent of the aspect of washing away according to the present invention, although the appearance before use is transparent, it becomes turbid when diluted with water, and thus it is useful when the end of washing is judged visually. Moreover, since the treatment agent for hair which concerns on this invention set suitably the selection and quantity of the liquid ester oil and nonionic surfactant mix | blended with a liquid hydrocarbon, stability with time improves.

The drawing substitute photograph showing the transparent container which accommodated the treatment agent for hair which concerns on water or embodiment of this invention. The drawing substitute photograph showing the transparent container which stored what mixed the treatment agent for hair of this embodiment in water by dripping.

Based on the treatment agent for hair which concerns on embodiment of this invention, this invention is demonstrated below.
The hair treatment agent according to this embodiment is a blend of (A) liquid hydrocarbon, (B) liquid ester oil, and (C) nonionic surfactant. In addition, if the appearance before use is transparent and the turbidity due to dilution with water can be maintained, the raw material blended in the hair treatment agent of the present embodiment and the known hair treatment agent is an optional raw material. You may mix as.

((A) Liquid hydrocarbon)
In the hair treatment agent of this embodiment, one or more selected from liquid known hydrocarbons at 20 to 50 ° C. are blended as (A) liquid hydrocarbon (hereinafter referred to as “(A) liquid carbonization”. “Hydrogen” may be referred to as “component (A).”

  Examples of the component (A) include liquid paraffin, liquid isoparaffin, and squalane. When using the hair treatment agent of this embodiment, liquid paraffin may be blended when removing oil from the scalp and scalp and massaging the scalp.

  The blending amount of the component (A) in the hair treatment agent of the present embodiment is not particularly limited, but is preferably 30% by mass to 70% by mass, and preferably 40% by mass to 60% by mass.

((B) Liquid ester oil)
In the hair treatment agent of this embodiment, one or two or more kinds selected from liquid ester oils of branched alcohols and linear fatty acids and liquid ester oils of linear alcohols and branched fatty acids (B) It is blended as a liquid ester oil (hereinafter, “(B) liquid ester oil” may be referred to as “(B) component”). This component (B) is liquid at 20 to 50 ° C.

  The component (B) may have 17 to 26 carbon atoms. For example, the liquid ester oil b1 represented by the following general formula (b1) and the liquid ester oil b2 represented by the following general formula (b2) One or more selected from the above are blended as component (B).

R ¹ COOR ² (b1)
In the general formula (b1), R ¹ CO represents an acyl group having 8 to 18 carbon atoms in which R ¹ is a branched alkyl group, and R ² represents a linear alkyl group having 2 to 18 carbon atoms. Examples of the carboxylic acid for constituting R ¹ CO include 2-ethylhexanoic acid and isostearic acid, and examples of the alcohol for constituting R ² include ethanol, hexanol, cetyl alcohol, and stearyl alcohol. . Specific examples of the liquid ester oil b1 include cetyl 2-ethylhexanoate, stearyl 2-ethylhexanoate, ethyl isostearate, and hexyl isostearate.

R ³ COOR ⁴ (b2)
In the general formula (b2), R ³ CO represents an acyl group having 12 to 18 carbon atoms in which R ³ is a linear alkyl group, and R ⁴ represents a branched alkyl group having 3 to 8 carbon atoms. Examples of the carboxylic acid for constituting R ³ CO include myristic acid, palmitic acid, and stearic acid, and examples of the alcohol for constituting R ⁴ include isopropanol and 2-ethylhexanol. Specific examples of the liquid ester oil b2 include isopropyl myristate, 2-ethylhexyl myristate, isopropyl palmitate, 2-ethylhexyl palmitate, and 2-ethylhexyl stearate.

  The blending amount of the component (B) in the hair treatment agent of this embodiment is preferably such that the total blending amount of the component (A) and the component (B) is 40% by mass or more and 75% by mass or less. (B) As a single compounding quantity of a component, it is 5 to 25 mass%, for example, 7 to 20 mass% is good, and 8 to 15 mass% is preferable.

((C) Nonionic surfactant)
In the treatment agent for hair of this embodiment, one or more selected from known nonionic surfactants such as sorbitan fatty acid ester, polyoxyethylene sorbitol tetrafatty acid ester, polyoxyethylene glycerin fatty acid ester (C) It is blended as a nonionic surfactant (hereinafter, “(C) nonionic surfactant” may be referred to as “component (C)”).

  Examples of the sorbitan fatty acid ester include sorbitan palmitate, sorbitan stearate, sorbitan sesquistearate, sorbitan isostearate, sorbitan sesquiisostearate, sorbitan oleate, and sorbitan sesquioleate. Examples of the polyoxyethylene sorbitol fatty acid ester include, for example, tetrastearic acid sorbes-60, tetraoleic acid sorbes-6, tetraoleic acid sorbes-30, tetraoleic acid sorbes-40, tetraoleic acid sorbes-60, and tetraisostearic acid. Solves-30 is exemplified. Examples of polyoxyethylene glyceryl fatty acid esters include PEG-5 glyceryl stearate, PEG-15 glyceryl stearate, PEG-5 glyceryl isostearate, PEG-8 glyceryl isostearate, PEG 10-glyceryl isostearate, and PEG isostearate. -20 glyceryl, PEG-25 glyceryl isostearate, PEG-30 glyceryl isostearate, PEG-5 glyceryl oleate, glyceryl PEG-15 oleate.

  Depending on the component (C) to be selected, the appearance cannot be made transparent, or turbidity due to dilution with water hardly occurs. In such a case, the component (C) may be two or more, and the weighted average HLB (Hydrophile-Lipophile Balance) value of the component (C) may be adjusted as appropriate. For example, when sorbitan fatty acid ester and polyoxyethylene sorbitol tetrafatty acid ester are used as component (C), the weighted average HLB is preferably 9.0 or more and 10.2 or less, and preferably 9.5 or more and 10.0 or less.

In addition, in the calculation of the HLB value of each (C) component, the method by an emulsification test is employ | adopted. That is, (1) a part by mass of a cetyl ether nonionic surfactant and b part by mass of sorbitan monostearate ("NIKKOL" manufactured by Nikko Chemical Co., Ltd.)
SS-10MV ", HLB value = 4.7), and a plurality of emulsions are obtained by the following composition and preparation method with various ratios of a and b. (2) These emulsions after standing for a day The HLB value is calculated by “(10.5-4.7 × b / 4) 4 / a” based on the ratio of a and b that minimizes the particle size of the oil droplets at.
Emulsion composition:
Liquid paraffin (oil phase) 40% by mass
Emulsifier a + b = 4% by mass
56% by weight of water
Preparation of emulsion:
Liquid paraffin is heated to about 80 ° C., and an aqueous phase of 80 ° C. or higher is added and emulsified with stirring. Thereafter, stirring is continued while cooling, and the mixture is left at 40 ° C.

  The blending amount of the component (C) in the hair treatment agent of the present embodiment should be appropriately set according to the type of the component (C) to be blended, and the amount that causes turbidity due to dilution with water and the transparent appearance. It is. As a general tendency depending on the blending amount, when the blending amount is increased, a transparent appearance is easily realized, and when the blending amount is decreased, turbidity due to dilution is easily generated. For example, (C) component is mix | blended with the treatment agent for hair of this embodiment with the compounding quantity of 20 to 30 mass%.

(Optional raw material)
As described above, an optional raw material may be blended in the hair treatment agent of this embodiment. Examples of the optional raw materials include (D) polyhydric alcohol (hereinafter, “(D) polyhydric alcohol” may be referred to as “(D) component”), (E) water (hereinafter, “(E) water”. "May be referred to as" component (E) "), animal and plant extracts, oils and fats, cationic surfactants, ester oils, hydrocarbons, silicones, amino acids and the like.

  The (D) component and the (E) component such as 1,3-butylene glycol are frequently blended with the blend of the animal and plant extracts. When a large amount of the component (D) and the component (E) is blended, the transparent appearance is liable to be impaired. Therefore, the total blending amount of the component (D) and the component (E) in the hair treatment agent of this embodiment is 10% by mass. The following is good, 8 mass% or less is preferable, 6 mass% or less is more preferable, and 4 mass% or less is still more preferable.

  In order to achieve a transparent appearance, it is preferable that the relationship between the total amount of component (D) and component (E) and the amount of component (C) is constant. The preferable blending amount is such that the blending amount (C) / [(D) + (E)] of the component (C) with respect to the total blending amount of the component (D) and the component (E) is 3 or more.

(how to use)
The hair treatment agent of the present embodiment is a fluid liquid, and is applied to hair after being diluted with water or without being diluted, and used after washing. Since the hair treatment agent at the time of washing away is diluted with water to cause turbidity, visual observation can also be adopted for judging the end of washing out of the hair treatment agent. FIG. 1 is a drawing-substituting photograph showing a transparent container (capacity 50 ml) containing water or the hair treatment agent of this embodiment, and FIG. 2 is a mixture of 1 g of the hair treatment agent of this embodiment added dropwise to water. It is a drawing substitute photograph showing the transparent container (capacity 50 ml) which accommodated things. In FIG. 1, the appearance of the hair treatment agent of this embodiment visually confirmed can be confirmed to be transparent, and in FIG. 2, when the hair treatment agent of this embodiment was diluted with water, it became cloudy white. Can be confirmed.

  In addition, after applying the hair treatment agent of this embodiment to the hair and washing it with water, a treatment containing a cationic surfactant and a higher alcohol may be applied to the hair and washed with water. By performing the treatment by this treatment, it is possible to suppress the stickiness of the hair caused by the component (A) and the component (B).

  The cationic surfactant to be blended in the treatment is preferably selected from known ones. Examples of the cationic surfactant include dilong-chain alkyldimethylammonium salts such as distearyldimethylammonium chloride, dicetyldimethylammonium chloride, dicocoyldimethylammonium chloride; behenyltrimethylammonium chloride, stearyltrimethylammonium chloride, stearyltrimethylammonium. Mono long-chain alkyltrimethylammonium salts such as bromide and cetyltrimethylammonium bromide; long-chain alkoxyalkyltrimethylammonium salts such as stearoxypropyltrimethylammonium chloride; and the like. It means 8 or more straight chain or branched alkyl groups. When the carbon number is 16 or more and 22 or less, it suppresses irritation to the skin and attaches to hair. From the viewpoint of feel that.). The blending amount of the cationic surfactant in the treatment should be appropriately set. For example, it is 1% by mass to 5% by mass, and preferably 2% by mass to 4% by mass. Setting it to 1% by mass or more is preferable for improving the feel of hair, and setting it to 5% by mass or less is preferable for suppressing skin irritation.

  The higher alcohol blended in the treatment may be selected from known ones. As this higher alcohol, those having 16 to 22 carbon atoms are preferable. For example, linear saturated alcohols such as cetyl alcohol, stearyl alcohol, aralkyl alcohol, and behenyl alcohol; linear unsaturated alcohols such as oleyl alcohol; hexyldecanol, octyl And branched saturated alcohols such as dodecanol, isocetyl alcohol, and isostearyl alcohol. The blending amount of the higher alcohol in the treatment is, for example, 3% by mass to 15% by mass, and preferably 5% by mass to 10% by mass. By setting it to 3% by mass or more, the viscosity is increased, and by setting it to 15% by mass or less, it is preferable for suppressing oiliness.

  EXAMPLES Hereinafter, although this invention is explained in full detail based on an Example, this invention is not interpreted limitedly based on description of this Example.

  The liquid treatment examples for hair in Examples and Comparative Examples were produced by blending the raw materials at the mass ratios shown in Tables 1 to 4 below. As shown in Tables 1 to 4 below, the blended raw materials are component (A) (liquid paraffin, liquid isoparaffin), component (B) (cetyl 2-ethylhexanoate, isopropyl myristate, isopropyl palmitate), (C ) Component (sorbitan oleate, sorbes tetraoleate-30), (D) component (1,3-butylene glycol), (E) component (water), liquid fat (rice bran oil, castor oil), plant extract, and Selected from perfumes. The hair treatment agent is manufactured by mixing (D) component, (E) component and plant extract, mixing (C) component with higher HLB, and then mixing (C) component with lower HLB. Then, the component (A) and the component (B) were mixed.

  About the manufactured hair treatment agent, “transparency” and “turbidity due to dilution” were confirmed (only “turbidity due to dilution” was confirmed by the evaluation of “transparency”. ). In addition, “separation after standing at room temperature for one day” was confirmed (only “turbidity due to dilution” was confirmed). In the confirmation of “transparency”, a transparent container having a capacity of 50 ml containing a hair treatment agent was visually confirmed, and “◯” was recognized as transparent, and “X” was recognized as cloudy. . In the confirmation of “turbidity due to dilution”, 2 to 3 ml of hair treatment agent is mixed with 1.5 L of water in a container having a depth of about 7 cm, and “○” indicates that the bottom of the container is not visible, and the bottom of the container is visible. The thing was made into "x". In the “separation after standing at room temperature for one day”, a transparent container having a capacity of 50 ml containing the hair treatment agent was visually observed, and “no” indicates that the separation was not confirmed, and “no” indicates that the separation was confirmed. Separated. "

  Further, some hair treatment agents were actually applied to the hair during hair treatment, and sensory evaluation was performed regarding “rising the root of the hair” and “finger passage” after the hair treatment. The above-mentioned hair treatment is performed by blending a hair treatment agent into hair washed with shampoo, washing with water, and further blending a commercially available cationic surfactant and higher alcohol ("Premier Lifting Effect 2nd" manufactured by Milbon). Essence ") was adjusted to the hair, washed with water, and the hair was dried with warm air.

Tables 1 to 4 below show the raw materials, the mixing ratio of the raw materials, and the like.

  In Table 1, it can be confirmed that “transparency” and “turbidity due to dilution” can be set by adjusting the weighted average HLB of the component (C). Moreover, regarding the sensory evaluation of the “rising of the root of the hair” of the treated hair, Example 1a was a better result than Examples 1b and 1c. Regarding the sensory evaluation of “as per finger”, Example 1a gave better results than Example 1c.

  In Table 2, it can be confirmed that increasing the blending amount of the component (C) makes it difficult to cause “turbidity due to dilution”.

  In Table 3, when (C) / [(D) + (E)] is set to 3 or more by comparison between Example 3 and Comparative Example 3a, it can be confirmed that transparency is easily realized.

  In Table 4, since only Comparative Example 4 in which the component (B) was not blended was “separation” in “separation after standing at room temperature for one day”, the blending of the component (B) improved separation suppression. Can be confirmed. Moreover, regarding the sensory evaluation of the “rising of the root of the hair” of the treated hair, Example 4a was a better result than Examples 4b, 4d, and 4e. Regarding sensory evaluation of “finger pass”, Example 4a performed better than Examples 4b and 4c.

  Separately from the hair treatment agents of the above Examples and Comparative Examples, raw materials were blended at a mass ratio shown in Table 5 below to produce fluid liquid treatment agents for Examples 5a to 5b. As shown in Table 5 below, the blended raw materials were component (A) (liquid paraffin), component (B) (cetyl 2-ethylhexanoate), component (C) (sorbitan oleate, sorbes tetraoleate-30 PEG-8 glyceryl isostearate), (D) component (1,3-butylene glycol), (E) component (water), rice bran oil, plant extract, and flavor.

Table 5 below shows the raw materials and the mixing ratio of the raw materials.

Regarding the sensory evaluation of the treated hair, the evaluation of natural gloss that occurs when the hair is trimmed,
Example 5a and Example 5b were directly compared. As a result of comparison, Example 5b was superior to Example 5a.

Claims (7)

(A) liquid hydrocarbon, (B) one or more liquid ester oils selected from liquid ester oils of branched alcohols and linear fatty acids, and liquid ester oils of linear alcohols and branched fatty acids, And (C) a nonionic surfactant is blended,
It is transparent before use and has the appearance of turbidity when diluted with water,
A treatment agent for hair, which is used in the form of washing away.   The treatment agent for hair according to claim 1, wherein liquid paraffin is blended as the (A) liquid hydrocarbon.   The hair treatment agent according to claim 1 or 2, wherein the (B) liquid ester oil is a liquid ester oil having 17 to 26 carbon atoms. As said (B) liquid ester oil, 1 type, or 2 or more types chosen from liquid ester oil b1 represented by the following general formula (b1) and liquid ester oil b2 represented by the following general formula (b2) are mix | blended. The hair treatment agent according to claim 3.
R ¹ COOR ² (b1)
[In the general formula (b1), R ¹ CO represents an acyl group having 8 to 18 carbon atoms in which R ¹ is a branched alkyl group, and R ² represents a linear alkyl group having 2 to 18 carbon atoms. . ]
R ³ COOR ⁴ (b2)
[In the general formula (b2), R ³ CO represents an acyl group having 12 to 18 carbon atoms in which R ³ is a linear alkyl group, and R ⁴ represents a branched alkyl group having 3 to 8 carbon atoms. . ]   The treatment agent for hair according to any one of claims 1 to 4, wherein a total blending amount of the (A) liquid hydrocarbon and the (B) liquid ester oil is 40% by mass or more.   The (D) polyhydric alcohol and (E) water are blended, and the total blending amount of the (D) polyhydric alcohol and (E) water is 10% by mass or less. The treatment agent for hair as described in any one of.   The blending amount (C) / [(D) + (E)] of the (C) nonionic surfactant with respect to the total blending amount of the (D) polyhydric alcohol and the (E) water is 3 or more. 6. A hair treatment agent according to 6.