JP7490231B2 - Hair styling products - Google Patents

Description

The present invention relates to a hair styling product.

In recent years, the effects desired from hair styling products have become more diverse, and hair styling products that provide a natural finish with reduced shine are preferred.
As hair styling products with reduced shine, for example, a wax-like hair styling product containing a specific oil and kaolin as essential ingredients (Patent Document 1) and an oil-based solid hair cosmetic product containing a specific oil-swelling clay mineral, a surfactant, and an oil (Patent Document 2) have been disclosed.

JP 2002-114652 A JP 2010-229071 A

However, the technology of Patent Document 1 did not sufficiently suppress the shine. One of the reasons for the lack of suppression of shine is thought to be that the water contained in the wax-like hair styling product causes shine. On the other hand, the technology of Patent Document 2 suppresses shine, but the high surfactant content makes the hair sticky after styling. In addition, the durability of the hairstyle was not of satisfactory quality.

In light of the above, the objective of the present invention is to provide a hair styling product that provides a natural finish with reduced shine, is less sticky, washes off easily, and maintains the hairstyle.

The present inventors have conducted intensive research to solve the above problems. As a result, they have found that the above problems can be solved by a hair styling product having the following composition, and have completed the present invention.

The present invention relates to, for example, the following [1] to [5].
[1] A hair styling product comprising: 2.4 to 10.5 mass% of polyoxyethylene stearyl ether (A); 2 to 8 mass% of at least one ester oil (B) selected from the group consisting of isononyl isononanoate, isopropyl myristate, isodecyl neopentanoate, and hexyl laurate; 12.5 to 20 mass% of waxes (C) that are solid at 45°C; 20 to 60 mass% of kaolin (D); and petrolatum (E), wherein the HLB of the entire component (A) is 8 to 11.
[2] The hair styling product according to [1], wherein the component (A) is at least one selected from the group consisting of steareth-6 and steareth-11.
[3] The hair styling product according to [1] or [2], wherein the wax (C) that is solid at 45°C is at least one selected from the group consisting of microcrystalline wax, candelilla wax, and paraffin.
[4] The hair styling product according to any one of [1] to [3], wherein the average particle size of the kaolin (D) is 0.1 to 10 μm.
[5] The hair styling product according to any one of [1] to [4], wherein the water content is 0.1% by mass or less.

The present invention provides a hair styling product that has a natural finish with reduced shine, is less sticky, washes off easily, and maintains the hairstyle.

The hair styling product of the present invention will be specifically described below.
<Hair styling products>
The hair styling product of the present invention contains 2.4 to 10.5 mass% of polyoxyethylene stearyl ether (A) (hereinafter also referred to as "component (A)"), 2 to 8 mass% of at least one ester oil (B) selected from the group consisting of isononyl isononanoate, isopropyl myristate, isodecyl neopentanoate, and hexyl laurate, 12.5 to 20 mass% of waxes (C) that are solid at 45°C, 20 to 60 mass% of kaolin (D), and petrolatum (E), and the HLB of the entire component (A) is 8 to 11.

The hair styling product of the present invention is preferably a hair wax.
In the present invention, the content of each component is indicated when the total amount of the hair styling product is taken as 100% by mass.

<Polyoxyethylene stearyl ether (A)>
The hair styling product of the present invention contains the polyoxyethylene stearyl ether (A) in an amount of 2.4 to 10.5% by mass, preferably 2.4 to 9% by mass, more preferably 3.6 to 9% by mass, and most preferably 6 to 7.5% by mass.

By containing component (A) in the above amount, the hair styling product of the present invention can impart good washability while suppressing stickiness.
If the amount of component (A) is less than the lower limit, the hair may become sticky and difficult to wash off, whereas if the amount is more than the upper limit, the setting power decreases and the hairstyle tends to last less long.

Specific examples of component (A) include steareth-1, steareth-2, steareth-3, steareth-4, steareth-5, steareth-6, steareth-7, steareth-8, steareth-9, steareth-10, steareth-11, steareth-12, steareth-13, steareth-14, steareth-15, steareth-16, steareth-17, steareth-18, steareth-20, steareth-21, steareth-25, steareth-27, steareth-30, steareth-40, steareth-50, steareth-80, and steareth-100. Of these, it is preferable that component (A) is at least one selected from the group consisting of steareth-6 and steareth-11.

In the hair styling product of the present invention, component (A) more preferably contains steareth-6 and steareth-11, and it is most preferable that component (A) is steareth-6 and steareth-11, since this allows for both high setting power and easy rinsing.
The component (A) may be used alone or in combination of two or more types.

The hair styling product of the present invention has an HLB of 8 to 11, preferably 9 to 11, and more preferably 9 to 10, for the entire component (A).

When the HLB of the entire component (A) is within the above range, stickiness can be suppressed.
If the HLB of the entire component (A) is lower than the lower limit, stickiness may increase and washing off may become difficult, whereas if it is higher than the upper limit, washing off and spreading of the agent may become difficult.

The inventors believe that by containing component (A) in the amount described above and with the overall HLB described above, the hair styling product of the present invention is easy to wash off, and furthermore, is able to achieve both low stickiness and long-lasting hairstyle.

<Ester oil (B)>
The hair styling product of the present invention contains at least one ester oil (B) (hereinafter also simply referred to as "ester oil (B)") selected from the group consisting of isononyl isononanoate, isopropyl myristate, isodecyl neopentanoate, and hexyl laurate in an amount of 2 to 8 mass%, preferably 2 to 6.5 mass%, more preferably 3 to 6.5 mass%, and most preferably 3.5 to 5 mass%.

The hair styling product of the present invention contains the ester oil (B) in the above amount, thereby imparting good spreadability and good washability to the product.
If the amount of the ester oil (B) is less than the lower limit, washing off may be difficult, whereas if the amount is more than the upper limit, setting power decreases and the durability of the hairstyle tends to decrease.

In the hair styling product of the present invention, the ester oil (B) is preferably at least one kind of ester oil (B) selected from the group consisting of isononyl isononanoate and isodecyl neopentanoate, and it is more preferable that the ester oil (B) is isononyl isononanoate, as this is easy to wash off and allows for easy styling of hairstyles.
The ester oil (B) may be used alone or in combination of two or more kinds.

<Waxes (C) that are solid at 45° C.>
The hair styling product of the present invention contains waxes (C) that are solid at 45° C. (hereinafter, also simply referred to as "waxes (C)") in an amount of 12.5 to 20% by mass, preferably 13.5 to 19% by mass, and more preferably 14 to 18% by mass.

The hair styling product of the present invention contains the wax (C) in the above amount, and thus can impart a high setting power capable of lifting and holding the hair.
If the amount of wax (C) is less than the lower limit, the setting power is low and it may be difficult to make a hair bundle. If the amount of wax (C) is more than the upper limit, the agent tends to be too hard and difficult to apply to hair.

As the wax (C), any wax that is solid at 45° C. can be used without any particular limitation.
Specific examples of the waxes (C) include waxes such as candelilla wax, carnauba wax, beeswax, spermaceti, lanolin, reduced lanolin, and hydrogenated jojoba oil, and hydrocarbons such as paraffin, microcrystalline wax, and ceresin.

Among these, it is preferable that the wax (C) is at least one selected from the group consisting of microcrystalline wax, candelilla wax, and paraffin, as this can impart high setting power, and it is more preferable that the wax (C) is microcrystalline wax, as this suppresses gloss and provides a strong matte feel.
The waxes (C) may be used alone or in combination of two or more kinds.

In this specification, waxes (C) do not include waxes that fall under the category of petrolatum (E), which will be described later. Waxes (C) also include hydrogenated jojoba oil, but do not include regular jojoba oil (liquid at 25°C).

<Kaolin (D)>
The hair styling composition of the present invention contains kaolin (D) in an amount of 20 to 60% by mass, preferably 30 to 55% by mass, and more preferably 35 to 50% by mass.

By containing kaolin (D) in the above amount, the hair styling product of the present invention can reduce stickiness. In addition, it can impart a matte feel to the hair, resulting in a natural finish with reduced gloss.
If the amount of kaolin (D) is less than the lower limit, the hair may become sticky and the matte feeling may become weak, whereas if the amount of kaolin (D) is more than the upper limit, the hair may become rough when applied to the hair and may appear whitish after application.

Kaolin (D) can be any kaolin commonly used for cosmetic purposes without any particular restrictions, and may be a natural product, a product purified from a natural product, or a synthetic product.

In the hair styling product of the present invention, the average particle size of the kaolin (D) is preferably 0.1 to 10 μm, more preferably 0.1 to 7 μm, and even more preferably 0.1 to 5 μm.
In this specification, the average particle size is an arithmetic mean value measured by a laser diffraction method.

<Vaseline (E)>
The hair styling product of the present invention contains petrolatum (E) in an amount of preferably 10 to 70% by mass, more preferably 15 to 45% by mass.

By containing petrolatum (E), the hair styling product of the present invention can impart viscosity to the agent, making it easier to style the hairstyle.
As the petrolatum (E), any petrolatum that is commonly used as cosmetic petrolatum can be used without any particular limitation.

Examples of petrolatum (E) include yellow petrolatum and white petrolatum. Of these, it is preferable that the petrolatum (E) is white petrolatum.

<Other ingredients>
The hair styling product of the present invention may contain additives such as moisturizers, herbal medicines, pH adjusters, chelating agents, preservatives, antioxidants, cooling agents, vitamins, proteins, fragrances, antibacterial agents, and colorants, in addition to the above-mentioned components, so long as the effects of the present invention are not impaired.

When the hair styling product of the present invention contains water, it is preferable that the hair styling product does not substantially contain water, since there is a risk of producing a water-derived gloss. The term "substantially free of water" means that water present as an impurity in each component and water mixed in from the air during the production of the hair styling product of the present invention may be contained in the hair styling product, but water is usually not intentionally added.
In the hair styling product of the present invention, the water content is preferably 0.1% by mass or less.

<Manufacture of hair styling products, etc.>
The hair styling product of the present invention can be produced by, for example, stirring, mixing, heating, dissolving, emulsifying, dispersing, etc., in a known manner, other than using the above-mentioned components in the above-mentioned amounts, and the production method is not particularly limited. As for the production method, in order to mix the components uniformly, it is preferable to produce the hair styling product of the present invention under heating conditions, for example, heating conditions of 75 to 85°C.

[Dosage form]
The hair styling product of the present invention may be in a cream form, a semi-solid form, or a solid form, for example. Among these, the hair styling product of the present invention is preferably in a semi-solid or solid form, and more preferably in a solid form because of its high setting power.

The hair styling product of the present invention is preferably a non-aqueous product. The term "non-aqueous product" refers to an oil-based product that does not substantially contain water.
The hair styling product of the present invention has, for example, a milky white appearance.
The hair styling product of the present invention is preferably non-aqueous and has a milky appearance.

<Applications>
The hair styling product of the present invention can be used by applying it to hair.
The hair styling product of the present invention is preferably used by applying it to dry hair that is free of moisture after washing, or to semi-dry hair.
The hair styling product of the present invention is not particularly limited to the length of hair to which it is applied, but is preferably applied to short hair and medium-length hair because it provides excellent durability in the hairstyle.

The hair styling product of the present invention is preferably a hair wax or a balm, and more preferably a hair wax.
The hair styling product of the present invention gives a natural finish with less shine, is less sticky, is easily washed off, and provides a long-lasting hairstyle.

The present invention will now be described in more detail with reference to examples, but the present invention is not limited to these.

[Examples 1 to 32, Comparative Examples 1 to 19]
In the examples and comparative examples, commercially available products shown in Table 1 were used.

The numerical values of the formulations in Tables 2 to 9 represent the mass % of each component when the entire hair styling product is taken as 100 mass %, and are expressed as values converted into pure contents.
Hair styling products were prepared by mixing the components according to the formulations shown in Tables 2 to 9, and the products were used as samples and evaluated by the following methods.

〔Evaluation methods〕
At room temperature (25°C), 10 professional panelists (hairdressers) each took 2 g of the sample, spread it on the palm of their hand, and then applied it evenly to a human hair wig UN manufactured by PAMS, cut to a top of 10 cm and a nape of 3 cm, to create a hairstyle. A sensory evaluation was conducted on the series of treatments and hairstyles according to the evaluation items and evaluation criteria described in each of the items (1) to (7) described below.

The average of the scores of the 10 panelists for each item was calculated and rated as follows:
⊚: The average score of the evaluations by 10 professional panelists (beauticians) is 3.5 points or more.
Good: The average score of the evaluations by 10 professional panelists (beauticians) was 2.5 points or more and less than 3.5 points.
Δ: The average score of the evaluations by 10 professional panelists (beauticians) is 1.5 points or more and less than 2.5 points.
×: The average score of the evaluation scores of 10 professional panelists (beauticians) is less than 1.5 points.

[Evaluation items and evaluation criteria]
(1) Setting power After applying the sample to the entire hair, the roots were raised, hair bundles were made, and a three-dimensional hairstyle was created. The ease of creating the hair flow (hairstyle) and the rising of the roots were evaluated by touch.
4 points: Very strong setting power, very easy to style hairstyles 3 points: Strong setting power, easy to style hairstyles 2 points: Weak setting power, some difficulty in styling hairstyles 1 point: Very weak setting power, unsatisfactory hairstyles

(2) Stickiness after Setting A sample was applied to the entire hair, and the stickiness of the hair after 5 minutes was evaluated by touch.
4 points: not sticky 3 points: slightly sticky 2 points: sticky 1 point: very sticky

(3) Fluffy Bundle Feeling Hair was pinched to make a bundle, and the end of the bundle was visually evaluated as to whether it was appropriately loose and fluffy.
4 points: The hair is tightly bundled, but the ends are loose and frizzy. 3 points: The hair is bundled, but the ends are loose and frizzy. 2 points: The hair is slightly bundled, or the ends are not loose at all. 1 point: The hair is not bundled, or the ends are not loose at all.

(4) Durability of hairstyle After applying the sample to the entire hair, the roots were raised, hair bundles were made, and a three-dimensional hairstyle was created. After that, the hair was left for 6 hours under conditions of 50% humidity and 28°C room temperature, and the hairstyle was visually evaluated for its maintenance.
4 points: hairstyle is maintained overall without falling apart 3 points: hairstyle is maintained overall 2 points: hairstyle has lost volume, but is maintained in parts 1 point: hairstyle has lost volume overall and is not maintained

(5) Washing off The sample was applied to the entire hair, and after the hair was sufficiently dried, the hair was washed with 1.0 g of shampoo for 30 seconds and then rinsed for 1 minute with water at about 38° C. The wash-off was evaluated by touch.
The shampoo used was Sherpa Design Supplement Shampoo D-2 (manufactured by Arimino).
4 points: Very easy to wash off 3 points: Easy to wash off 2 points: Poorly washable 1 point: Very difficult to wash off

(6) Spreadability of the Preparation 2 g of the sample was placed in the palm of the hand, and the spreadability of the preparation was evaluated by touch when the sample was spread and spread on the palm.
4 points: Very good stretchability 3 points: Good stretchability 2 points: Poor stretchability 1 point: Very poor stretchability

(7) Matte Feeling The matte feel of the hair flow (hairstyle) was visually evaluated.
4 points: No shine at all, very matte 3 points: No shine, feels matte 2 points: Shiny, feels like something is stuck to the hair 1 point: Clearly shiny, feels like something is stuck to the hair

The hair styling products produced in Examples 1 to 32 all achieved good results in all of the evaluation items (1) to (7).
It can be seen that the hair styling product of the present invention gives a natural finish with less shine, is less sticky, is easily washed off, and provides a long-lasting hairstyle.

The hair styling product produced in Comparative Example 1 had a small amount of component (A) and was therefore difficult to wash off.
The hair styling product produced in Comparative Example 2 contained a large amount of component (A), and therefore had a weak setting power and did not provide a smooth, bundled feel. In addition, the product did not spread well.

The hair styling product produced in Comparative Example 3 was sticky and difficult to wash off because the HLB of the entire component (A) was lower than 8 to 11. In addition, the hairstyle did not last long.
The hair styling product produced in Comparative Example 4 had an HLB value of the entire component (A) higher than 8 to 11, and therefore the hairstyle did not last long and the product did not spread easily.

The hair styling product produced in Comparative Example 5 had a small amount of ester oil (B) and was therefore difficult to wash off and had poor spreadability.
The hair styling product produced in Comparative Example 6 had a large amount of ester oil (B) blended therein, and therefore had a weak setting power, poor hairstyle durability, and a weak matte feel.

The hair styling product produced in Comparative Example 7 had a small amount of wax (C) blended therein, and therefore had weak setting power and the hairstyle did not last long.
The hair styling product produced in Comparative Example 8 contained a large amount of wax (C), and therefore was difficult to wash off and had poor spreadability.

The hair styling product produced in Comparative Example 9 was sticky and glossy due to the small amount of kaolin (D) blended.
The hair styling product produced in Comparative Example 10 had a weak setting power and poor spreadability due to the large amount of kaolin (D) blended.

The hair styling products produced in Comparative Examples 11 to 14 did not contain component (A) but contained a surfactant generally used in hair wax.
The hair styling product produced in Comparative Example 11 contained ceteth-7 instead of component (A), and therefore did not maintain the hairstyle, had weak setting power, and was sticky and very difficult to wash off.

The hair styling product produced in Comparative Example 12 contained polyethylene glycol monostearate instead of component (A), so the hairstyle was not maintained and the setting power was weak. In addition, the product was very sticky and difficult to wash off.

The hair styling product produced in Comparative Example 13 contained PEG-60 hydrogenated castor oil instead of component (A), so the hairstyle did not last long and the setting power was weak. It was also very sticky and very difficult to wash off.

The hair styling product produced in Comparative Example 14 contained PEG-20 glyceryl triisostearate instead of component (A), so the hairstyle did not last long and the setting power was weak. It was also sticky and difficult to wash off.

The hair styling products produced in Comparative Examples 15 to 17 did not contain the ester oil (B) but contained a liquid oil that is generally used in hair wax.
The hair styling product produced in Comparative Example 15 contained mineral oil instead of ester oil (B), and therefore the hairstyle did not last long, the setting power was weak, and the product was sticky and very difficult to wash off.

The hair styling product produced in Comparative Example 16 contained cetyl ethylhexanoate instead of ester oil (B), so it had weak setting power and was very difficult to wash off.

The hair styling product produced in Comparative Example 17 contained olive fruit oil instead of ester oil (B), so the hairstyle did not last long and the setting power was weak. It was also sticky and very difficult to wash off.

The hair styling product produced in Comparative Example 18 contained jojoba oil instead of wax (C), so the hairstyle was not maintained and the setting power was very weak. In addition, the product was sticky and did not give a clean, fluffy feel to the hair.

The hair styling product produced in Comparative Example 19 did not contain kaolin (D) but contained talc, a type of clay mineral commonly used in hair wax. The hair styling product produced in Comparative Example 19 did not maintain the hairstyle well and had weak setting power. It also had a weak matte finish.

Claims (5)

2.4 to 10.5% by mass of polyoxyethylene stearyl ether (A);
2 to 8% by mass of at least one ester oil (B) selected from the group consisting of isononyl isononanoate, isopropyl myristate, isodecyl neopentanoate, and hexyl laurate;
12.5 to 20% by mass of waxes (C) that are solid at 45°C;
20 to 60% by mass of kaolin (D);
Vaseline (E),
A hair styling product, wherein the HLB of the entire component (A) is 8 to 11. The hair styling product according to claim 1, wherein the component (A) is at least one selected from the group consisting of steareth-6 and steareth-11. The hair styling product according to claim 1 or 2, wherein the wax (C) that is solid at 45°C is at least one selected from the group consisting of microcrystalline wax, candelilla wax, and paraffin. The hair styling product according to any one of claims 1 to 3, wherein the average particle size of the kaolin (D) is 0.1 to 10 μm. The hair styling product according to any one of claims 1 to 4, wherein the water content is 0.1% by mass or less.