JP2023097465A - Hair cosmetic - Google Patents

Abstract

To provide a restylable hair cosmetic that not only provides hair treatment effects such as imparting luster, smoothness, slipperiness, and moist feeling, but also provides styling effects such as a sense of bunches and bundles, and also has a hair re-styling effect that restores the bunches by combing the hair again after a lapse of time.SOLUTION: Provided is a hair cosmetic that is characterized by containing the following components (A), (B), and (C). Preferably, the hair cosmetic containing two or more of the components (A). (A) Drying oil with an iodine value of 145 or more. (B) Dimethicone. (C) Ester oil that is liquid at 20°C.SELECTED DRAWING: None

Description

Applied for application of Article 30, Paragraph 2 of the Patent Act Website publication date: August 18, 2021 Website address: https://www. Kracie. co. jp/release/10170556_3833. html Sale date: September 28, 2021 Dealers: Tsuruha Holdings Co., Ltd., Sundrug Co., Ltd., Kusuri no Aoki Co., Ltd., etc.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hair cosmetic, and more particularly, to a hair cosmetic that not only provides a hair treatment effect but also a styling effect such as a set hair, and also has a hair restyling effect.

In order to impart smoothness and luster to the hair and make it easier to comb, hair cosmetics with a leave-in type conditioning effect are used, and are generally called hair essences, hair creams, hair milks, hair oils, hair waters, etc. Treatments are marketed. Furthermore, in recent years, hair care products containing vegetable oils have been favored due to the growing interest in natural and green hair.

Oils such as silicone oil, polymeric dimethylpolysiloxane, and polymeric methylphenylpolysiloxane are solubilized, emulsified, and dissolved for the purpose of imparting smoothness and luster to hair. In particular, silicone oil has a low surface tension, is excellent in compatibility with hair, and imparts good gloss. Therefore, many hair cosmetics containing silicone oil have been proposed (for example, Patent Document 1).

In addition, in order to achieve a non-sticky and light finish, one selected from the group consisting of a dibasic acid ester compound, a volatile oil, an ester oil, a hydrocarbon oil, an animal and vegetable oil, and a silicone oil, or Hair cosmetics containing two or more kinds of oil agents have been proposed (for example, Patent Document 2).

Japanese Patent Application Laid-Open No. 2006-290820 Japanese Patent No. 5763922

However, although the oil-type hair cosmetic composition described in Patent Document 1 has a sufficient hair treatment effect, it does not provide a styling effect.

On the other hand, the hair cosmetic composition as described in Patent Document 2 has a problem in the styling effect after a long period of time, and there is a problem that it is difficult to restyle the hair.

Therefore, the present invention not only provides hair treatment effects such as glossiness, smoothness, slipperiness, and moistness, but also styling effects such as unity and bundles. To provide a hair cosmetic having a hair restyling effect to restore the cohesiveness of the hair.

The present inventors have made intensive studies to solve the above problems, and as a result, based on the total mass of the hair cosmetic,
(A) a drying oil with an iodine value of 145 or higher;
(B) dimethicone,
(C) The present inventors have found that the above problems can be solved by providing a hair cosmetic containing an ester oil that is liquid at 20°C.

That is, the present invention
(A) a drying oil with an iodine value of 145 or higher;
(B) dimethicone,
(C) A hair cosmetic comprising an ester oil that is liquid at 20°C.

Furthermore, in one aspect of the present invention, it is preferable to blend (A) two or more kinds of drying oil having an iodine value of 145 or more.

Furthermore, in one aspect of the present invention, (B) 5.5% by mass to 28% by mass of dimethicone and (C) 0.1% by mass to 2.5% by mass of an ester oil that is liquid at 25°C can be blended. preferable.

According to the hair cosmetic composition of the present invention, it is possible not only to obtain a styling effect but also to achieve a hair restyling effect while imparting hair treatment effects such as smoothness, moist feeling and gloss to the hair.

The present invention will be described in detail below.

In the present invention, the term "hair restyling effect" refers to the effect of easily restoring a hairstyle that has been disturbed due to passage of time, wind, action, etc., by hand combing or combing.

[Hair cosmetics]
In the present invention, the hair cosmetic contains (A) a drying oil having an iodine value of 145 or more, (B) dimethicone, and (C) an ester compound that is liquid at 20° C., based on the total mass of the hair cosmetic. It is a leave-in type hair cosmetic characterized by this. By blending these components (A) to (C) in specific proportions, the effects of the present invention can be exhibited. Here, the "non-rinse-type hair cosmetic" is a so-called out-bath-type hair cosmetic that is left applied to the hair without being washed off.

Out-bath type hair cosmetics include, for example, leave-in treatments, hair foams, hair waxes, hair creams, hair milks, hair pomades, hair gels, hair creams, hair sprays, hair mists, hair waters, hair liquids, hair oils and the like. temporary hair dyes such as hair color sprays, hair tonics, hair tonics, and the like.

In the present invention, the dosage form of the hair cosmetic composition can be arbitrarily selected from known dosage forms according to its application, purpose of use, and the like. For example, it can be liquid, milky lotion, cream, gel, paste, foam, mist, etc. The foam or mist may be in an aerosol form or non-aerosol form.

Each component of the hair cosmetic composition of the present invention will be described in detail below.

[(A) Drying oil with an iodine value of 145 or more]
Oils obtained from plants have various iodine values, and it is necessary to select an oil suitable for the speed and degree of solidification according to the purpose.

For example, vegetable oils with an iodine value of 100 or less are classified as non-drying oils and have the property of not solidifying in the air. Non-drying oils include olive oil, almond oil, peanut oil, coconut oil, camellia oil, and rapeseed oil.

Also, vegetable oils with an iodine value of about 130 to 100 are classified as semi-drying oils, which react in the air to reduce fluidity, but do not solidify completely. Semi-drying oils include corn oil, cottonseed oil, sesame oil, soybean oil, and the like.

Furthermore, vegetable oils with an iodine value of 130 or higher are classified as drying oils. Drying oils are oils that completely solidify in the air, including rapeseed oil, soybean oil, linseed oil, tung oil, mustard oil, pomegranate oil, rosehip oil, perilla oil, walnut oil, perilla oil, evening primrose oil, safflower oil, and sunflower oil. etc.

The (A) drying oil having an iodine value of 145 or more in the present invention is a vegetable oil having a higher iodine value among drying oils and having a higher degree of solidification.・Rosehip oil, walnut oil, evening primrose oil, safflower oil, etc. fall under this category. Such vegetable oils having an iodine value of 145 or more can be used alone or in combination of two or more.

The content of (A) the drying oil having an iodine value of 145 or more in the hair cosmetic composition of the present invention is 0.01% by mass to 10% by mass, preferably 0.05% by mass, based on the total mass of the hair cosmetic composition. % to 5% by mass, more preferably 0.1% to 1% by mass. If the content of (A) the drying oil having an iodine value of 145 or more in the hair cosmetic composition of the present invention is within this range, it is possible to obtain an appropriate hair restyling effect on the hair.

[(B) dimethicone]
(B) dimethicone in the present invention is a linear polymer obtained by blocking the terminal of the dimethylpolysiloxane structure with a trimethylsiloxy group. There are even things that show the appearance. Dimethicone, which has a low degree of polymerization and low molecular weight, has a low viscosity, suppresses the stickiness of oil, has a smooth and light texture, and has excellent slip and spreadability, and also helps other ingredients spread on the hair. Therefore, it is widely used as a texture modifier for all products containing oil. On the other hand, dimethicone, which has a high degree of polymerization and a high molecular weight, is highly viscous, and is widely used as a conditioning agent because it can produce a moist and heavy feel and a strong damage care effect. Such dimethicones can be used alone or in combination of two or more.

The content of (B) dimethicone in the hair cosmetic composition of the present invention is 5% by mass to 28% by mass, preferably 10% by mass to 25% by mass, more preferably 10% by mass to 25% by mass, based on the total mass of the hair cosmetic composition. It is 15% by mass to 20% by mass. If the content of (B) dimethicone in the hair cosmetic composition of the present invention is within this range, the hair cosmetic composition can be uniformly applied to the hair and a hair treatment effect can be obtained.

[(C) liquid ester compound at 20°C]
The (C) ester oil that is liquid at 20° C. in the present invention is an ester oil containing an ester of a fatty acid and an alcohol as a main component, and is generally blended as a hair conditioning agent for the purpose of giving hair manageability. .

Examples of (C) ester oils that are liquid at 20° C. in the present invention include, but are not limited to, isopropyl myristate, butyl myristate, isopropyl palmitate, ethyl stearate, butyl stearate, and oleic acid. Esters of linear higher fatty acids and lower alcohols such as ethyl and ethyl linoleate, cetyl caprylate, hexyl laurate, decyl myristate, myristyl myristate, cetyl palmitate, stearyl stearate, decyl oleate, cetyl ricinoleate, Esters of linear higher fatty acids and linear higher alcohols such as isostearyl laurate, isotridecyl myristate, isocetyl myristate, isostearyl myristate, octyldodecyl myristate, octyl palmitate, isocetyl palmitate, isostearyl palmitate , esters of straight-chain fatty acids and branched alcohols such as isocetyl stearate, octyldodecyl stearate, isodecyl oleate and octyldodecyl oleate; esters of branched fatty acids and lower alcohols such as ethyl isostearate and isopropyl isostearate; Esters of branched fatty acids such as cetyl octanoate, cetostearyl octanoate, stearyl octanoate, and hexyl isostearate with linear higher alcohols, ethylene glycol dioctoate, ethylene glycol dioleate, propylene glycol dicaprylate, propylene glycol dicaprate, propylene glycol dioleate, neopentyl glycol dicaprate, esters of fatty acids and polyhydric alcohols such as pentaerythritol tetra-2-ethylhexanoate, octyldodecyl neopentanoate, isocetyl octanoate, isostearyl octanoate, octyl isoperargonate, Esters of branched fatty acids and branched alcohols such as octyldodecyl neodecanoate and isostearyl isostearate, lactate esters such as lauryl lactate, myristyl lactate and cetyl lactate, triethyl citrate, trioctyl citrate, triisocetyl citrate, dimalate dibasic acid esters such as isostearyl, dioctyl succinate, diethyl sebacate, and dioctyl sebacate; In addition, naturally-derived oils include jojoba oil, olive oil, Argania spinosa kernel oil, and the like. Moreover, in the present invention, (C) a commercial product may be used as the ester oil that is liquid at 20°C. Such ester oils can be used alone or in combination of two or more.

The blending amount of component (C) in the hair cosmetic composition of the present invention is 0.1% by mass to 2.5% by mass, preferably 0.5% by mass to 2% by mass, based on the total mass of the hair cosmetic composition. and more preferably 1% by mass to 1.5% by mass. If the content of (C) the ester oil that is liquid at 20°C in the hair cosmetic composition of the present invention is within this range, it imparts a styling effect such as a manageable feeling without imparting excessive stickiness or weight to the hair. be able to.

[Other ingredients]
The hair cosmetic composition of the present invention contains the components (A) to (C) as essential components, and is prepared by adding these components to a liquid to which a solvent or the like is added. Other ingredients generally blended in hair cosmetics can be blended depending on the purpose as long as they do not impair the effect.

Other components such as those mentioned above include nonionic surfactants such as polyoxyethylene alkyl ethers, polyoxyethylene sorbitan fatty acid esters and glycerin fatty acid esters; cationic surfactants such as stearyltrimethylammonium chloride and alkyltrimethylammonium chloride. higher alcohols such as cetanol and stearyl alcohol; wetting agents such as glycerin, propylene glycol, butylene glycol, dipropylene glycol and glycosyltrehalose; higher alcohols such as stearic acid, behenic acid, oleic acid, isostearic acid and 2-ethylhexanoic acid Fatty acids; avocado oil, apricot oil, olive oil, grape oil, almond oil, hazelnut oil, jojoba oil, safflower oil, macadamia nut oil, rosehip oil, meadowfoam oil, cranberry abyssinica oil, camellia oil, argan oil, palm Vegetable oils such as oil, sesame oil, sunflower oil, walnut oil, and vegetable squalane; Hydrocarbons such as liquid isoparaffin, petrolatum, and squalane; Anti-dandruff ingredients such as zinc pyrithione and benzalkonium chloride; Ethanol, methanol, propyl alcohol, and isopropyl alcohol. lower alcohols such as l-menthol and peppermint oil; cooling agents such as L-aspartic acid, L-sodium aspartate, DL-alanine, L-arginine, glycine, L-glutamic acid, L-cysteine, L-threonine Amino acids; propellant gases such as liquefied petroleum gas and dimethyl ether; 12-hydroxystearic acid, dibenzylidene sorbitol, low molecular weight compounds such as amino acid derivatives, or oil gelling agents such as polyacrylic acid derivatives and dextrin derivatives; Preservatives, sugars, fragrances, coloring agents, sequestering agents, antioxidants, various chemicals, and the like.

The hair cosmetic composition of the present invention can be preferably used as leave-in treatments, hair waxes, hair creams, hair milks, hair gels, hair mists, hair waters, hair oils and the like.

EXAMPLES The embodiments of the present invention will now be described more specifically with reference to Examples. However, the present invention is by no means limited to these examples.

[Sample preparation]
The following samples were prepared by a conventional method using the components and blending amounts shown in Tables 1 and 2 below. As for other ingredients, the hair oil was appropriately blended with other silicones, volatile hydrocarbons and fragrances.

[Preparation of hair sample]
In order to evaluate the usefulness of the hair cosmetic composition of the present invention, hair was first treated by the following method. Commercially available hair (10 g, 30 cm, manufactured by Beaulux) was washed with 2 g of a 10% by weight polyoxyethylene (2E.O.) sodium lauryl ether sulfate aqueous solution with a shampoo, rinsed thoroughly with hot water, and then towel-dried. and dried the hair with a hair dryer. Next, 0.5 g of the hair cosmetics of the Examples and Comparative Examples shown in Tables 1 and 2 below were uniformly applied and allowed to dry naturally. The damage care effect on hair was evaluated. In addition, the feeling of stickiness on the hands after applying the hair cosmetic to the hair tresses was evaluated.

[Evaluation of hair samples]
Using the hair samples prepared as described above, the following indices were evaluated.

(1) Treatment Effect Smoothness of hair was evaluated by measuring dynamic friction coefficient. The coefficient of dynamic friction of hair was measured using a friction tester (KES-SE type, manufactured by Kato Tech Co., Ltd.) with a silicon sheet attached as a friction element under the conditions of a load of 50 g and a moving speed of 1 mm/sec (MIU value). was measured, and the average value of 20 hair bundles was obtained. Incidentally, the lower the dynamic friction coefficient, the smoother it is, and the evaluation criteria are as follows.
○: Good dynamic friction coefficient is 0.3 or less △: Slightly bad dynamic friction coefficient is 0.3 to 0.45 ×: Bad dynamic friction coefficient is 0.45 or more

(2) Styling effect Using the hair condition evaluation method described in JP-A-2021-78867, the ratio of floating hair immediately after application (FAF ratio), that is, the sense of unity was evaluated. The lower the FAF rate, the better the unity without floating hair. In addition, the evaluation criteria are as follows.
○: Good FAF rate is 30 to 35% △: Slightly bad FAF rate is 35 to 40% ×: Bad FAF rate is 40% or more

(3) Hair restyling effect Using the hair condition evaluation method described in JP-A-2021-78867, the area value of the hair bundle immediately after application and the lifting part 14 are operated to create a disturbed state, and then a hand comb. The area value of each hair bundle after styling was measured. Furthermore, the rate of change in the area value immediately after application and after hair styling was calculated. It should be noted that the smaller the rate of change in the area value, the more the hair condition immediately after application is obtained even after restyling, indicating that the hair restyling effect is high. The evaluation criteria are as follows.
○: Good change rate is 105% or less △: Slightly bad change rate is 105 to 125% ×: Bad Change rate is 125% or more

The formulations and evaluation results of Examples 1-27 and Comparative Examples 1-8 are listed in Tables 1 and 2 below.

As is clear from Tables 1 and 2, Examples 1 to 27 regarding the hair cosmetic of the present invention all exhibited superior performance compared to the compositions of Comparative Examples 1 to 8. Comparative Examples 1 to 5 use grape seed oil with an iodine value of 145 or less as one of the A components, and Comparative Examples 6 to 8 contain pasty ester oil at 20 ° C. instead of the C component. Although it is an example, even when compared with these, smoothness and styling effects were equal to or better than those, and excellent results were shown for hair restyling effects. Therefore, it was found that the hair cosmetic composition of the present invention exhibits excellent properties such as not only a hair treatment effect but also a styling effect on the hair, as well as a hair restyling effect.

Hereinafter, other formulation examples of the hair cosmetic composition of the present invention will be given as examples. The hair cosmetics of these examples were also examined for the above-mentioned hair treatment effect, styling effect, and hair restyling effect. It was good.

Example 28 Hair Oil
(mass%)
(1) Light isoparaffin 45.0
(2) Light liquid isoparaffin 24.5
(3) isostearic acid 5.0
(4) Tetra-2-ethylhexanoic acid pentaerythritol 2.0
(6) Evening primrose oil 1.0
(7) Safflower oil 1.0
(8) Dimethicone 20.0
(9) 2-ethylhexyl para-methoxycinnamate 1.0
(10) Perfume 0.5

(Manufacturing method) (1) to (12) were uniformly mixed and dissolved to prepare a hair oil.

Example 29 Hair Essence
(mass%)
(1) Alkyltrimethylammonium chloride 1.0
(2) stearyl alcohol 1.8
(3) Octyldodecyl myristate 0.5
(4) Diethyl Sebacate 2.0
(5) isostearic acid 1.0
(6) Squalane 3.0
(7) Dimethicone 3.0
(8) Evening primrose oil 2.0
(9) Safflower oil 0.5
(10) walnut seed oil 0.5
(11) glycosyltrehalose 0.5
(12) 2-ethylhexyl para-methoxycinnamate 0.5
(13) Methylparaben 0.2
(14) Phenoxyethanol 0.2
(15) Perfume 0.2
(16) Glycerin 3.0
(17) hydroxyethyl cellulose 0.5
(18) Purified water The total amount is 100

(Manufacturing method) (1) to (7) are uniformly mixed and dissolved at 80°C, (16) to (18) heated to 80°C are added and emulsified, and mixed uniformly using a homomixer. After gradually cooling while mixing, (8) to (15) were added at 50°C and further mixed with a homomixer, the mixture was cooled to 30°C to prepare a hair essence.

Example 30 Hair mist
(mass%)
(1) Ethanol 20.0
(2) stearyltrimethylammonium chloride 1.0
(3) isostearic acid 1.0
(4) Oleic acid 0.2
(5) Octyldodecyl stearate 3.0
(6) Dimethicone 1.5
(7) Evening primrose oil 1.0
(8) Walnut seed oil 0.2
(9) Rice bran extract 0.5
(10) Ercalactone DES (manufactured by Nippon Fine Chemical Co., Ltd.) 1.0
(11) Perfume 0.2
(12) Purified water The total amount is 100

(Manufacturing method) (1) to (12) were uniformly mixed and dissolved to prepare a hair mist.

Example 31 Hair Cream
(mass%)
(1) Stearyltrimethylammonium chloride 1.0
(2) stearyl alcohol 2.5
(3) isostearic acid 2.0
(4) Octyldodecyl oleate 2.0
(5) Paraffin 0.5
(6) Dimethicone 1.5
(7) Propylene glycol 0.5
(8) Evening primrose oil 5.0
(9) Safflower oil 0.5
(10) dimethylamino (aminoethylaminoisobutyl) siloxane 0.2
(11) sunflower seed extract 1.0
(11) Methylparaben 0.2
(12) Perfume 0.2
(13) Purified water The total amount is 100

(Manufacturing method) (1) to (7) are uniformly mixed and dissolved at 80°C, and the mixture is added to (13) heated to 80°C and stirred with a propeller to emulsify. After cooling gradually, (8) to (12) were added at 60° C. and cooled to room temperature to prepare a hair cream.

Example 32 Hair foam
(mass%)
(1) stearyltrimethylammonium chloride 0.5
(2) stearyl alcohol 1.5
(3) isostearic acid 2.0
(4) Diethyl Sebacate 2.0
(5) Paraffin 0.5
(6) Dimethicone 3.0
(7) 1,3-butylene glycol 0.5
(8) Polyoxyethylene hydrogenated castor oil 0.5
(9) Highly polymerized methylpolysiloxane 0.5
(10) Evening primrose oil 2.0
(11) walnut seed oil 2.0
(12) Methylparaben 0.2
(13) Perfume 0.2
(14) Liquefied petroleum gas 4.0
(14) dimethyl ether 1.0
(15) Purified water The total amount is 100

(Manufacturing method) (1) to (12) are uniformly mixed and dissolved at 80°C, (15) heated to 80°C is added to emulsify, and cooled to room temperature while being mixed and dispersed to obtain a stock solution. rice field. This undiluted solution was filled in an aerosol pressure-resistant container, and after attaching a valve, propellants (13) to (14) were filled in to prepare a hair foam.

Claims (3)

A hair cosmetic comprising the following components (A), (B) and (C).
(A) a drying oil with an iodine value of 145 or higher;
(B) dimethicone,
(C) Ester oil liquid at 20°C A hair cosmetic containing two or more of the components (A). 3. The hair cosmetic according to claim 1, wherein the component (B) is 5.5 to 28% by mass and the component (C) is 0.1 to 2.5% by mass based on the total mass of the hair cosmetic. fee.