JP7185435B2 - hair cosmetics - Google Patents

Description

The present invention relates to hair cosmetics. More particularly, it relates to a wax-like hair cosmetic, particularly a hair styling agent, which is excellent in hair setting properties and usability.

Among hair-finishing cosmetics, hair-styling agents (hair-styling agents) emphasizing hair-styling properties include types using solid, semi-solid, or viscous liquid oils and fats, types using polymer resins, and viscous moisturizing agents. A type using an agent is conventionally known. A hair styling agent called hair wax utilizes the hair styling power and luster of solid oil, and is characterized by natural setting power and hair restyling.

For example, in Patent Document 1, (A) carnauba wax and (B) candelilla wax, which are solid oils, are the main components, (C) a nonionic surfactant containing a fatty acid ester type, (D) a specific fatty acid and A hair wax containing a fatty acid ester and/or (E) a volatile oil is disclosed, and is said to have improved emulsion stability without impairing the hair styling properties of carnauba wax.
Patent Document 2 discloses (A) sodium polyacrylate and/or highly polymerized polyethylene glycol, (B) plant-derived and/or semi-solid oil of vegetable oils, (C) candelilla wax, and (D) non-volatile oil. Disclosed is a hair cosmetic containing a predetermined amount of a liquid oil containing (D1) and a volatile oil (D2) and having a mass ratio of (C) and (D) in a specific range. It is said to be good, non-sticky, non-greasy and gives a natural luster, and has excellent hair styling properties.

Patent Document 3 discloses (a) a specific long-chain acyl sulfonate-type anionic surfactant, (b) a higher aliphatic alcohol, (c) (c-1) waxes having a melting point of 55° C. or higher and/or or (c-2) a specific hair styling resin, and (c-3) silicic anhydride, (d) water, and (e) an oil-in-water emulsified hair styling composition containing liquid oil, which is spreadable and non-sticky. , It is said that it has excellent hair styling power and does not feel squeaky.
Patent Document 4 discloses (A) plant-derived and / or semi-solid oil of vegetable oil, (B) candelilla wax, (C) oil that is liquid at normal temperature, (D) specific amphoteric surfactant and / or semi-solid Disclosed is an emulsified hair styling composition containing a complex of a polar surfactant (D1) and a higher fatty acid (D2), which spreads well upon application, is less sticky, and is non-greasy, and has hair styling and hairstyle properties. It is said to have excellent keeping properties.

In Patent Document 5, (A) Fischer-Tropsch wax, (B) nonionic surfactant, (C) water, (D) higher fatty acid, (E) volatile oil, and (F) powder are blended. It is described that the hair styling cosmetic is stable without causing aggregation or precipitation over time, and has good compatibility with hair and spreadability.

As described above, various attempts have been made to improve the usability of hair wax. Because it is fast, it is difficult for general consumers to sufficiently style their hair.In addition, if the amount of liquid oil is increased to improve spreadability, it is possible to sufficiently style the hair, but because it dries slowly, it is difficult to decide on a hairstyle. , there was a problem that it felt sticky due to oil.

Japanese Patent No. 5224740 Japanese Patent No. 5080285 Japanese Patent No. 5761838 Japanese Patent No. 5215002 Japanese Patent No. 5574624

The present invention not only spreads well upon application and does not cause stickiness, but also dries after application such that the user has sufficient leeway to style the hair as desired, and still has a natural appearance. To provide a hair cosmetic exhibiting excellent setting power while maintaining texture.

As a result of intensive research, the present inventors have found that (A) volatile oil, (B) non-volatile oil, (C) solid oil (excluding higher alcohols), (A) volatile oil and (B) non-volatile oil By setting the mass ratio (A/B) of volatile oil and the total amount (A+B) of (A) volatile oil and (B) non-volatile oil to specific ranges, good elongation and setting power during application Thus, the present inventors have found a hair cosmetic that does not make the hair sticky and gives moderate dryness after application.

That is, the present invention
(A) volatile oil (B) non-volatile oil (C) solid oil (excluding higher alcohol),
The mass ratio (A / B) of the (A) volatile oil and the (B) non-volatile oil is 1.0 to 3.0, and the (A) volatile oil and the (B) non-volatile oil Provided is a hair cosmetic having a total blending amount (A+B) of 24.0% by mass or more and less than 40.0% by mass.

The hair cosmetic composition of the present invention spreads well when applied to the hair, is non-sticky, and dries in an appropriate amount of time, allowing sufficient hair styling. Furthermore, it has excellent setting power, is not sticky, and maintains a hairstyle with a natural texture.

EMBODIMENT OF THE INVENTION Below, the form for implementing invention of this invention is demonstrated.
The hair cosmetic of the present invention is
(A) volatile oil (B) non-volatile oil (C) solid oil (excluding higher alcohol),
The mass ratio (A / B) of the (A) volatile oil and the (B) non-volatile oil is 1.0 to 3.0, and the (A) volatile oil and the (B) non-volatile oil The hair cosmetic is characterized in that the total blending amount (A+B) is 24.0% by mass or more and less than 40.0% by mass, and the volatile oil component (A) does not contain a volatile silicone oil.

<(A) Volatile oil>
A volatile hydrocarbon oil is preferably used as the volatile oil component (ingredient A) blended in the cosmetic composition of the present invention.
The volatile hydrocarbon oil is particularly limited as long as it is a hydrocarbon oil that has volatility at room temperature (25 ° C.) and has a boiling point of 250 ° C. or less at normal pressure, which has been conventionally used in cosmetics. not. Specific examples include isoparaffins having 8 to 16 carbon atoms, such as isododecane, isohexadecane, and hydrogenated polyisobutene.

The volatile oil component (component A) in the hair cosmetic composition of the present invention preferably does not contain volatile silicone oils such as cyclopentasiloxane. One of the characteristics of the hair cosmetic composition of the present invention is that it can perform sufficient hair styling by exhibiting appropriate dryness due to the contribution of volatile oil. This is because the volatilization time is slow and it takes too long to dry after application to the hair. There is also a report that if the volatile silicone oil evaporates using a hair dryer or the like, it induces malfunctions in nearby kerosene fan heaters. Therefore, the hair cosmetic composition of the present invention includes embodiments that do not contain volatile silicone oil, and in such embodiments, the above-described problems do not occur.

(A) The volatile oil content is preferably 5.0 to 30.0% by mass, more preferably 10.0 to 27.0% by mass, and still more preferably 15.0 to 24.0% by mass. be.

<(B) Non-volatile oil>
The non-volatile oil (component B) used in the present invention is an oil that does not show volatility at normal temperature (25 ° C.) and normal pressure (1 atm) (for example, an oil with a boiling point of about 250 ° C. or higher at normal pressure). It means a liquid oil that exhibits fluidity at normal temperature and normal pressure.

Non-volatile liquid oils include, for example, liquid oils such as hydrocarbon oils, animal and vegetable oils, ester oils, and high-molecular-weight polyoxyalkylene glycols. Specific examples include linseed oil, camellia oil, macadamia nut oil, corn oil, olive oil, avocado oil, sasanqua oil, castor oil, safflower oil, mustard oil, cinnamon oil, jojoba oil, grape oil, almond oil, rapeseed oil, Animal and vegetable oils such as sesame oil, sunflower oil, wheat germ oil, rice germ oil, rice bran oil, cottonseed oil, soybean oil, peanut oil, tea seed oil, evening primrose oil, egg yolk oil, liver oil, triglycerin, glyceryl trioctanoate, triiso Liquid oils and fats such as glyceryl palmitate; octanoic acid esters such as cetyl ethylhexanoate; isooctanoic acid esters such as glyceryl tri-2-ethylhexanoate and pentaerythyl tetra-2-ethylhexanoate; lauric acid such as hexyl laurate Ester, isopropyl myristate, myristate such as octyldodecyl myristate, palmitate such as octyl palmitate, stearate such as isocetyl stearate, isostearate such as isopropyl isostearate, isopalmitate such as octyl isopalmitate Palmitate, oleate such as isodecyl oleate, adipate diester such as diisopropyl adipate, sebacate diester such as diethyl sebacate, ester oil such as diisostearyl malate; mineral oil, liquid paraffin, squalane, etc. hydrocarbon oil; polyoxybutylene, polyoxypropylene glycol, and the like. Examples of non-volatile silicone oils include methylpolysiloxane and high molecular weight dimethylpolysiloxane (eg, 6 cS). Among them, mineral oil, pentaerythyl tetra-2-ethylhexanoate, and cetyl ethylhexanoate are preferably used. These non-volatile oils may be used singly, but it is preferable to use two or more of them in combination from the viewpoint of emulsion stability (compatibility).

(B) The amount of non-volatile oil is preferably 5.0 to 30.0% by mass, more preferably 6.0 to 25.0% by mass, and still more preferably 7.0 to 20.0% by mass. % by mass.

In the present invention, desired properties are exhibited by setting the mass ratio (A/B) of (A) volatile oil to (B) non-volatile oil within the range of 1.0 to 3.0. This mass ratio (A/B) is more preferably 1.0 to 2.0, particularly preferably 1.0 to 1.5. When A/B is less than 1.0, the drying tends to be slow, and spreadability during application is poor, resulting in slight stickiness.

Further, in the present invention, the total blending amount (A+B) of (A) volatile oil and (B) non-volatile oil is required to be 24.0% by mass or more and less than 40.0% by mass. This total amount is more preferably 25.0% by mass or more and less than 38.0% by mass, and particularly preferably 26.0% by mass or more and less than 36.0% by mass. If the total amount (A+B) of (A) volatile oil and (B) non-volatile oil is less than 24.0% by mass, spread is poor and drying is insufficient, resulting in stickiness. If it is 40.0% by mass or more, it tends to be difficult to dry.

<(C) Solid oil content>
The (C) solid oil used in the present invention is not particularly limited as long as it is an oily component that is solid or semi-solid at room temperature (25° C.). Polyethylene wax, silicone wax, carnauba wax, beeswax, candelilla wax, jojoba wax, lanolin, shellac wax, whale wax, Japanese wax, myristic acid, palmitic acid, stearic acid, behenic acid, 12-hydroxystearic acid, cocoa butter, hydrogenated castor oil, Hydrogenated oil, hydrogenated palm oil, palm oil, hydrogenated coconut oil, polyethylene powder, vaseline, various hydrogenated animal and vegetable oils, fatty acid monocarboxylic acid lanolin alcohol ester, and the like. In particular, paraffin wax, microcrystalline wax, carnauba wax and candelilla wax are preferably used. The above solid oils can be used in the present invention either singly or in combination of two or more.

Higher alcohols that are solid at room temperature, such as stearyl alcohol and behenyl alcohol, are generally classified as solid oils, but the solid oils that are the component (C) in the present invention do not include higher alcohols. . However, this does not exclude the fact that the hair cosmetic composition according to the present invention contains a higher alcohol as an optional component instead of the essential component (C) solid oil.

(C) The amount of solid oil is preferably 5.0 to 30.0% by mass, more preferably 6.0 to 25.0% by mass, and still more preferably 7.0 to 20.0% by mass. is.

In the present invention, the mass ratio (B/C) of (B) non-volatile oil and (C) solid oil is preferably 0.5 to 1.5. More preferably 0.6 to 1.4, still more preferably 0.7 to 1.3. If the mass ratio (B/C) is less than 0.5, the setting power is obtained, but the composition is sticky and the spreadability and dryness are insufficient. If the mass ratio exceeds 1.5, the setting force will be insufficient.

In the present invention, the total amount (B+C) of (B) non-volatile oil and (C) solid oil is preferably 20.0% by mass or more and 30.0% by mass or less, more preferably 21.0% by mass. % or more and 29.0 mass % or less, particularly preferably 22.0 mass % or more and 28.0 mass % or less. If the total amount (B + C) of (B) non-volatile oil and (C) solid oil is less than 20.0% by mass, sufficient setting power cannot be obtained, and if it exceeds 30.0% by mass, stickiness and dryness will occur. is also defective.

In the present invention, the total blending amount (A+B+C) of (A) volatile oil, (B) nonvolatile oil, and (C) solid oil is preferably 35.0% by mass or more and 50.0% by mass or less. , more preferably 36.0% by mass or more and 46.0% by mass or less, and particularly preferably 37.0% by mass or more and 42.0% by mass or less. If the total amount (A + B + C) of (A) volatile oil, (B) non-volatile oil, and (C) solid oil is less than 35.0% by mass, problems such as insufficient setting power, poor dryness, or stickiness may occur. may cause

(D) Powder The hair cosmetic composition of the present invention may contain powder in order to improve setting power while maintaining a natural texture. Examples include silica, kaolin, and clay minerals. The amount of the powder (D) is 0.1 to 10.0% by mass, preferably 0.5 to 7.0% by mass, more preferably 1.0 to 5.0% by mass. If the amount of the powder (D) is less than 0.1% by mass, the effect of the powder mixture cannot be obtained, and if it exceeds 10.0% by mass, the matt feeling tends to be strong and the gloss tends to decrease.

In addition to the above components, the hair cosmetic composition of the present invention may optionally contain components commonly used in hair cosmetic compositions, particularly hair styling agents, within the range that does not impair the effects of the present invention. Examples of such optional components include higher alcohols, surfactants, humectants, dispersants, preservatives, chemicals, ultraviolet absorbers, thickeners, and the like.

The hair cosmetic composition of the present invention can be suitably applied in the form of hair wax, hair cream, etc., but the effect of the invention is most exhibited when it is used as a wax-like hair styling agent (hair styling agent).

EXAMPLES The present invention will be described in more detail below with reference to Examples, but the present invention is not limited to these. Unless otherwise specified, the blending amount is expressed in mass %.

Prior to the explanation of the examples, the effect test method used in the present invention will be explained.
<Effect test method>
A usability test was conducted by a panel of five experts. The evaluation items were spreadability, setting power, dryness and stickiness of hair at the time of application and were evaluated based on the following evaluation point criteria. The evaluation points of each of the 5 expert panelists were totaled and evaluated based on the following criteria. "Dryness" was evaluated from the viewpoint that the drying speed is optimal for hair styling (the hair styling agent dries in an appropriate amount of time and the hairstyle is determined).

(Evaluation point criteria)
5 points: Excellent.
4 points: Excellent.
3 points: Normal.
2 points: Inferior.
1 point: very poor.

(Evaluation criteria)
A: The total score is 20 points or more.
◯: The total score is 15 or more and less than 20.
Δ: The total score is 10 or more and less than 15.
x: The total score is less than 10 points.

Hair cosmetics were prepared according to the formulations shown in Tables 1 to 4 below, and the spreadability, setting power, dryness and stickiness of the hair upon application were evaluated according to the above criteria. The results are also shown in Tables 1-4.

In Examples 1 to 8 shown in Tables 1 and 2, (A) volatile oil, (B) mass ratio (A/B) of non-volatile oil, and (A) volatile oil and (B) non-volatile The hair cosmetic composition of the present invention, which is formulated so that the total oil content (A+B) is within a predetermined range, has been shown to have good spreadability, setting power, dryness, and stickiness of hair when applied. was done.

As is clear from the results shown in Table 3, (A) Comparative Example 1, in which only silicone oil was blended as the volatile oil, did not dry sufficiently after application, resulting in stickiness of the hair. Hair cosmetics having a mass ratio (A/B) of (A) volatile oil and (B) non-volatile oil of less than 1.0 exhibit poor spreadability upon application, causing hair stickiness and dryness after application. was insufficient (Comparative Example 2). When the total amount (A+B) of (A) volatile oil and (B) non-volatile oil was less than 20.0% by mass, the setting power was good, but elongation during application, drying after application, Suppression of hair stickiness was insufficient (Comparative Example 3). On the other hand, hair cosmetics with a mass ratio (A/B) of (A) volatile oil and (B) non-volatile oil exceeding 3.0 increased the stickiness of hair, and the drying after application was insufficient ( Comparative Example 4). In addition, when the total amount (A+B) of (A) volatile oil and (B) non-volatile oil is 40.0% by mass or more, hair becomes sticky and drying after application is insufficient. (Comparative Example 5).

From the results shown in Table 4, when the mass ratio (B/C) of (B) non-volatile oil and (C) solid oil is less than 0.5, the setting power increases, but the dryness after application decreases. However, there is a tendency that a desired hairstyle cannot be made quickly (Comparative Example 6). On the other hand, when the mass ratio (B/C) of (B) non-volatile oil to (C) solid oil exceeds 1.5, the setting force may be insufficient (Comparative Example 7). When the total amount (B + C) of (B) non-volatile oil and (C) solid oil is less than 20.0% by mass, the setting power decreases (Comparative Example 8), and when it exceeds 30.0% by mass, the coating It was shown that post-drying may be insufficient, resulting in stickiness of the hair (Comparative Example 9).

Claims (3)

(A) 15-24% by weight of volatile oil ;
(B) a non-volatile oil that is liquid at 25°C and 1 atm ; and
(C) containing an oily component that is solid or semi-solid at 25°C (excluding higher alcohol ; hereinafter referred to as solid oil );
further comprising a higher alcohol, water and a surfactant;
The mass ratio (A/B) of the (A) volatile oil to the (B) non-volatile oil is 1.0 to 3.0,
The total blending amount (A + B) of the (A) volatile oil and the (B) non-volatile oil is 24.0% by mass or more and less than 40.0% by mass,
The mass ratio (B/C) of (B) non-volatile oil and (C) solid oil is 0.5 to 1.5,
(B) The total amount of non-volatile oil and (C) solid oil (B + C) is 20.0% by mass or more and 30.0% by mass or less,
(A) volatile oil content, (B) non-volatile oil content and (C) solid oil content (A + B + C) is 35.0% by mass or more and 50.0% by mass or less,
The emulsified hair cosmetic composition, wherein the volatile oil component (A) does not contain a volatile silicone oil. (C) The hair cosmetic composition according to claim 1 , wherein the solid oil contains one or more of candelilla wax, microcrystalline wax, paraffin wax and carnauba wax. (C) The hair cosmetic composition according to claim 2, wherein the solid oil contains candelilla wax and microcrystalline wax, and further contains paraffin wax or carnauba wax.