JP7358114B2 - hair cosmetics - Google Patents

Description

The present invention relates to hair cosmetics.

Hair is easily damaged by the effects of ultraviolet rays, heat from a hair dryer, brushing, washing, etc., making it difficult to run your fingers through it. Furthermore, in recent years, while the use of perms, hair coloring, bleaching, etc. has become common, the damage to hair such as dryness and loss of firmness that accompanies these chemical treatments has also become a problem. Conventionally, various hair cosmetics have been disclosed in order to suppress hair damage and improve the feel of hair (Patent Document 1, Patent Document 2).
Although the technology to give hair firmness, body, and manageability is progressing year by year, there is a need for hair cosmetics with better effects and hair cosmetics that are more pleasant to use, and further progress is desired. There is.

Patent No. 6539071 Patent No. 6433372

An object of the present invention is to provide a hair cosmetic that allows hair to pass through the hair easily, has good firmness and elasticity, and has good manageability.

The present invention provides hair cosmetics containing the following (A) to (C).
(A) Amino-modified silicone (B) Mono- or di-long chain alkyl quaternary ammonium salt (C) Ester oil with a branched structure

According to the present invention, it is possible to provide a hair cosmetic that can be easily passed through the hair when rinsing or wet the hair, and after drying, and has good firmness, elasticity, and manageability.

Component (A) amino-modified silicone used in the present invention may be any silicone having an amino group or an ammonium group, and amino-modified silicone oil in which all or part of the terminal hydroxyl groups are blocked with methyl groups, etc. Either amodimethicone without end-blocking may be used. For example, preferred amino-modified silicones include those represented by the following general formula (1).

[In the formula, R represents a hydroxyl group, a hydrogen atom, or R ¹ , R ¹ represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms, and X represents R ¹ , -Q-NH(CH ₂ ) _n NH ₂ , -OR ¹ or a hydroxyl group, Q represents a divalent hydrocarbon group having 1 to 8 carbon atoms, n represents a number from 1 to 5, and p and q have a number average of 2 or more in sum. The number is less than 2,000, preferably 20 or more and less than 2,000, more preferably 30 or more and less than 1,000. ]

In the hair cosmetic of the present invention, the above amino-modified silicone may be used as it is or in the form of an emulsion. The emulsion of the amino-modified silicone can be prepared, for example, by mechanically mixing the amino-modified silicone and a solvent under high shear, by emulsifying the amino-modified silicone with water and an emulsifier, or by a combination thereof, or by emulsion polymerization. be able to.

The above amino-modified silicones include 2-8566 Amino Fluid, 969 Emulsion, BY22-079, SF 8451C, SF 8452C, SF 8457C, SS-3551, CB-1002 Conditioning Agent, SM8702C, SM8 904, SM8704C (all Dow Chemical Japan Stocks) Company/Dow Corning Toray Co., Ltd.), KF-8003, KF-8004, KF-8005, KF-867S, X-52-2265 (all Shin-Etsu Chemical Co., Ltd.), BELSIL (registered trademark) ADM 1650, BELSIL ( ADM 6057 E, BELSIL (registered trademark) ADM 8103 E, BELSIL (registered trademark) ADM 8104 E (all Asahi Kasei Wacker Silicone Co., Ltd.), NIKKOL (registered trademark) NET-ASA (Nikko Chemicals Co., Ltd.), XF- 42-B8922 and XS65-B6413 (both manufactured by Momentive Performance Materials Japan LLC) are commercially available.

From the viewpoint of continuously imparting a feeling of cohesion, component (A) is preferably 0.05% by mass or more as a pure amino-modified silicone, and 0.07% by mass based on the total amount of the hair cosmetic of the present invention. More preferably, it is at least % by mass. Moreover, it is preferable that it is 5 mass % or less. As a specific range, the blending amount is preferably 0.05 to 5% by mass, more preferably 0.07 to 5% by mass. If the blending amount is less than 0.05% by mass, the sustainability of the cohesive feeling may decrease. If it exceeds 5% by mass, the sticky feeling may become strong.

Component (B) mono- or di-long chain alkyl quaternary ammonium salt used in the present invention is, for example, cetrimonium chloride, steartrimonium chloride, behentrimonium chloride, stearalkonium chloride, benzalkonium chloride, stearoxypropyltrimonium chloride, Examples include monium chloride and dialkyl (C12-18) dimonium chloride. It is preferable to use steartrimonium chloride, behentrimonium chloride, stearoxypropyltrimonium chloride, and dialkyl (C12-18) dimonium chloride, and more preferably to use steartrimonium chloride and behentrimonium chloride. These may be used alone or in combination of two or more.

Component (B) is preferably 0.5% by mass or more, and preferably 0.9% by mass or more as a pure mono- or di-long-chain alkyl quaternary ammonium salt, based on the total amount of the hair cosmetic of the present invention. It is more preferable. Moreover, it is preferably 7% by mass or less, and more preferably 6% by mass or less. As a specific range, a blending amount of 0.5 to 7% by mass is preferred, and 0.9 to 6% by mass is particularly preferred. If the blending amount is less than 0.5% by mass, sufficient firmness and stiffness may not be obtained. If it exceeds 7% by mass, the sticky feeling may become strong.

In the component (C) ester oil having a branched structure used in the present invention, it is sufficient that one or both of the carboxylic acid and the alcohol forming the ester have a branched structure, and in addition to the monoester, the valence of the raw material alcohol Depending on the number of carboxyl groups possessed by the carboxylic acid, diesters, triesters, etc. may be used. For example, isopropyl myristate, isopropyl palmitate, ethylhexyl palmitate, isopropyl linoleate, isostearyl laurate, isotridecyl myristate, 2-hexyldecyl myristate, isostearyl palmitate, 2-ethylhexyl stearate, stearin. 2-hexyldecyl acid, isodecyl oleate, 2-octyldodecyl oleate, 2-octyldodecyl ricinoleate, ethyl isostearate, cetyl 2-ethylhexanoate, cetostearyl 2-ethylhexanoate, stearyl 2-ethylhexanoate, Hexyl isostearate, isopropyl isostearate, 2-octyldodecyl neopentanoate, 2-hexyldecyl 2-ethylhexanoate, isostearyl 2-ethylhexanoate, 2-ethylhexyl isononanoate, isononyl isononanoate, 2-dimethyloctanoate -Hexyldecyl, 2-octyldodecyl dimethyloctanoate, 2-ethylhexyl isopalmitate, hexyldecyl isostearate, isostearyl isostearate, 2-octyldodecyl isostearate, dioctyl succinate, pentaerythrityl tetraethylhexanoate, etc. Can be mentioned. Although there are no particular limitations as long as they are commonly used in hair cosmetics, it is particularly preferable to use ethylhexyl palmitate, hexyldecyl isostearate, dioctyl succinate, and pentaerythrityl tetraethylhexanoate. One type of these may be used alone or two or more types may be used in combination.

The content of component (C) is preferably 0.5% by mass or more, more preferably 0.6% by mass or more, based on the total amount of the hair cosmetic of the present invention. Moreover, it is preferably 10% by mass or less, and more preferably 8% by mass or less. As a specific range, a blending amount of 0.5 to 10% by mass is preferred, and a blending amount of 0.6 to 8% by mass is more preferred. If it is less than 0.5% by mass, sufficient firmness and stiffness may not be obtained. If it exceeds 10% by mass, the sticky feeling may become strong.

[Other optional ingredients]
The hair cosmetic composition of the present invention may contain various components other than components (A) to (C) that can be normally used in hair cosmetic compositions, as long as the effects of the present invention are not impaired. For example, silicone compounds other than component (A) (component (D)), nonionic surfactants (component (E)), cationic polymers (component (F)), neutralizing agents (component (G)), fats and oils other than component (C) (component (H)), wax (component (I)), water as a solvent (component (J)), etc., as appropriate. It can also be used.

<Component (D)>
Component (D) is a silicone compound. Specifically, dimethylpolysiloxane, methylphenylpolysiloxane, cyclic silicone, alcohol-modified silicone, alkyl-modified silicone, polyether silicone, fatty acid-modified polysiloxane, aliphatic alcohol-modified polysiloxane, epoxy-modified silicone, fluorine-modified silicone, etc. Examples include (a) to (g) below.

(a) Dimethylpolysiloxane: Examples include those having a methylsiloxane structure and a degree of polymerization with a viscosity of 1 to 50,000 mPa·s at 25°C.
(b) Cyclic silicone: A silicone oil having a cyclic methylpolysiloxane structure, such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, and cyclic silicone resins.
(c) Highly polymerized dimethylpolysiloxane: Examples include those having a methylsiloxane structure and a viscosity of 50,000 to 20,000,000 mPa·s at 25°C. When blending into a liquid oil, it is preferable to dissolve it in liquid oil or blend it with an aqueous emulsion prepared in an aqueous solution of a nonionic surfactant such as a cationic surfactant or polyoxyethylene alkyl ether. . Examples of the liquid oil include dimethylpolysiloxane, cyclic silicone, and isoparaffin hydrocarbon.
(d) Polyether-modified silicone: dimethylsiloxane/methyl (polyoxyethylene) siloxane/methyl (polyoxypropylene) siloxane copolymer, dimethylsiloxane/methyl (polyoxyethylene) siloxane copolymer, dimethylsiloxane/methyl (polyoxypropylene) siloxane copolymer, dimethylsiloxane/methyl (polyoxypropylene) siloxane copolymer, Examples include oxypropylene) siloxane copolymers.
(e) Alcohol-modified silicone: has a structure in which some of the methyl groups of dimethylpolysiloxane are replaced with alkoxy groups, and examples include stearoxymethylpolysiloxane and cetoxymethylpolysiloxane.
(f) Alkyl-modified silicone: has a structure in which some of the methyl groups of dimethylpolysiloxane are replaced with long-chain alkyl groups, and depending on the substitution rate and size of the alkyl group, it has properties ranging from liquid to wax-like. It will be done.
(g) Aminophenyl-modified silicone: A silicone oil having an N-(2-aminoethyl)aminopropyl group or an N-(2-aminoethyl)aminoisobutyl group and a phenyl group. When incorporated into cosmetics, it is dissolved in liquid oil or an aqueous emulsion prepared in an aqueous solution of a nonionic surfactant such as a cationic surfactant or polyoxyethylene alkyl ether. It is preferable. Examples of the liquid oil include dimethylpolysiloxane, cyclic silicone, and isoparaffin hydrocarbon. These silicone derivatives can be used alone or in combination of two or more.

When a silicone compound is blended into a hair cosmetic, the amount thereof is preferably 0.01 to 25% by mass, more preferably 0.05 to 10% by mass, based on the total amount of silicone compounds.

<Component (E)>
Component (E) is a nonionic surfactant. The nonionic surfactant is not particularly limited as long as it can be incorporated into hair cosmetics, but it is preferable to use a hydrophilic nonionic surfactant with an HLB value of 8 or more from the viewpoint of feeling in use. Specific examples of such hydrophilic nonionic surfactants include glycerin fatty acid esters and their alkylene glycol adducts, polyglycerin fatty acid esters and their alkylene glycol adducts, propylene glycol fatty acid esters and their alkylene glycol adducts, and sorbitan fatty acid esters and their alkylene glycol adducts. Examples include alkylene glycol adducts, fatty acid esters of sorbitol and their alkylene glycol adducts, polyalkylene glycol fatty acid esters, polyoxyalkylene-modified silicones, and polyoxyalkylene alkyl co-modified silicones.

<Component (F)>
Component (F) is a cationic polymer. Cationic polymers are not particularly limited as long as they can be incorporated into hair treatment agents, such as cationized hydroxyethyl cellulose, cationized guar gum, cationized locust bean gum, dimethyl diallyl chloride/acrylamide copolymer, acrylamide/acrylic Acid/dimethyldiallylammonium chloride copolymer may be mentioned as an example.

<Component (G)>
Component (G) is a neutralizing agent. The neutralizing agent is not particularly limited as long as it can be incorporated into the hair treatment agent, and examples include organic acids and/or salts thereof, and inorganic acids and/or salts thereof.

<Component (H)>
Component (H) is an oil or fat. The oil is not particularly limited as long as it can be incorporated into hair cosmetics, and examples include olive oil, camellia oil, shea butter, almond oil, safflower oil, sunflower oil, soybean oil, cottonseed oil, sesame oil, corn oil, Examples include rapeseed oil, rice bran oil, rice germ oil, grape seed oil, avocado oil, macadamia nut oil, castor oil, and coconut oil.

<Component (I)>
Ingredient (I) is a wax. The wax is not particularly limited as long as it can be incorporated into hair cosmetics, and examples include beeswax, candelilla wax, carnauba wax, jojoba oil, and lanolin. It is particularly preferable to use jojoba oil.

<Component (J)>
Component (J) is water serving as a solvent, and as component (J), ion-exchanged water, distilled water, deionized water, purified water, hot spring water, deep sea water, etc. can be used. The blending amount of component (J) is, for example, 5 to 90% by mass based on the total amount of the hair cosmetic of the present invention, and should be adjusted to be a blending amount suitable for obtaining the desired feel during use. is preferred.

In addition to the above-mentioned components, the hair cosmetic composition of the present invention may contain arbitrary components used in ordinary hair cosmetic compositions to the extent that the effects of the present invention are not impaired. Specifically, thickeners, preservatives, fragrances, humectants, antioxidants, anti-inflammatory agents, antibacterial agents, etc. can be mentioned.

The hair cosmetic of the present invention can be produced by conventional methods. The dosage form can be liquid, cream, etc., and is filled into various containers such as plastic containers, aluminum tube containers, and pouch containers.

The hair cosmetics of the present invention can be made into products such as hair rinses, hair conditioners, hair treatments, hair packs, hair creams, hair colors, and leave-on treatments.

It is preferable to use the hair cosmetic of the present invention after washing the hair with shampoo or the like. Further, after application, it is preferable to rinse excess hair cosmetics remaining on the hair before use.

EXAMPLES Hereinafter, the present invention will be specifically explained with reference to Examples, but the scope of the present invention is not limited thereby. In addition, the blending amount is mass % unless otherwise specified.

Hair cosmetics of Examples and Comparative Examples shown in Tables 1 and 2 were prepared by conventional methods.

The hair cosmetics of each Example and Comparative Example were evaluated for feel in use by the following method. The results are shown in Tables 1 and 2.

Usability (feeling through fingers, firmness, firmness, cohesiveness)
A usage test was conducted by three expert panelists. First, each panelist thoroughly washed their hair with the shampoo they use on a daily basis, and then applied an appropriate amount of the hair cosmetics shown in Tables 1 and 2 to the entire hair, and then washed it off. In accordance with the following criteria, an absolute evaluation was performed on how the hair ran through the fingers during rinsing and after drying, as well as on the firmness, stiffness, and manageability of the hair after drying, and the judgment was made by consensus. The criteria for evaluation were common: smoothness, firmness and cohesion, and cohesiveness.
<Judgment criteria>
◎: Very good ○: Good △: Neutral ×: Bad

注１：カチナールDC-80(C) 東邦化学工業株式会社
注２：コータミン 86W 花王株式会社
注３：KF-8005 信越化学工業株式会社
注４：DOWSIL BY25-320 ダウ・東レ株式会社
注５：DOWSIL SH 200 Fluid 100,000cSt ダウ・東レ株式会社

Note 1: Kachinar DC-80(C) Toho Chemical Co., Ltd. Note 2: Cortamine 86W Kao Corporation Note 3: KF-8005 Shin-Etsu Chemical Co., Ltd. Note 4: DOWSIL BY25-320 Dow-Toray Co., Ltd. Note 5: DOWSIL SH 200 Fluid 100,000cSt Dow/Toray Industries, Inc.

As shown in Table 1, Example 1 containing amino-modified silicone, mono- or di-long chain alkyl quaternary ammonium salt, and ester oil with a branched structure was compared with Comparative Example 1, which did not contain the ester oil with a branched structure. As a result, fingerability, firmness, and cohesiveness were improved.

Claims (1)

A hair cosmetic containing the following (A) to ( D ) .
(A) Amino-modified silicone (B) Behentrimonium chloride
(C) Hexyldecyl isostearate
(D) Hydrogenated polyisobutene