JP7217597B2 - hair cosmetics - Google Patents

Description

The present invention relates to hair cosmetics. More specifically, the present invention relates to a grease-like hair cosmetic formulated by combining two or more nonionic surfactants having different HLB values within specific ranges.

Among hair-finishing cosmetics, grease-like hair styling agents (called hair grease or pomade) are known as hair styling agents (hair styling agents) that place particular emphasis on hair styling properties. It has excellent performance such as giving. Grease-like hair styling agents are in the form of solids or pastes with lower fluidity than gel-like hair styling agents, and are generally used by filling a jar container or the like and taking an appropriate amount with fingers.

Grease-like hair styling agents include oil-based types using liquid oils and solid oils, and water-based types in which water is blended with polyhydric alcohols, film-forming polymers, and thickeners. Conventional oil-based grease-like hair styling agents hold down the hair with liquid oil, so that the gloss is excellent, but the bangs may fall down due to movement of the head after hair styling.

In Patent Document 1, it is pointed out that oil-based grease-like hair styling agents have a problem of stickiness peculiar to oil. By combining them, it is said that stickiness control, ease of application, hair styling power, and stability have been improved.

As cosmetics containing oil, Patent Document 2 discloses gel cosmetics containing a nonionic surfactant, a liquid higher alcohol, a liquid oil, and water. This gel-like cosmetic has moderate viscosity, good stability over time, and is said to be gentle on the skin and hair as a hair styling agent and cleansing agent.

However, the two types of polyoxyethylene alkyl ethers in Patent Document 1 and the nonionic surfactants described in Patent Document 2 are hydrophilic surfactants with an HLB of 10 or more, and are effective in suppressing stickiness and improving hair washing properties. points were insufficient.

JP 2017-186296 A Japanese Patent Application Laid-Open No. 2001-335425

The present invention has been made in view of the above-mentioned drawbacks of the prior art, and provides a grease-like hair cosmetic containing oil, which is capable of holding the hairstyle without dripping of the bangs and is easy to wash off. To provide a hair cosmetic excellent in (hair washing property).

As a result of intensive research to solve the above-mentioned problems, the present inventors have found an oil-based surfactant that uses a combination of two types of nonionic surfactants having a low HLB value and a high HLB, and in addition a polymer. The present inventors have found that the grease-like hair cosmetic composition of No. 1 has good compatibility with water, good hair washing properties, and makes it difficult for the bangs to drip down, and has completed the present invention.

That is, the present invention
(A) a nonionic surfactant comprising (A-1) a nonionic surfactant having an HLB of 1 to 6 and (A-2) a nonionic surfactant having an HLB of 7 to 20;
(B) an oil agent containing at least one selected from ester oils and hydrocarbon oils;
(C) a polyhydric alcohol;
(D) a polymer; and (E) a hair cosmetic containing water,
The ratio "(A-1)/(A-2)" of the amount of (A-1) to the amount of (A-2) is in the range of 0.01 to 0.2. To provide a hair cosmetic that

Since the hair cosmetic composition of the present invention contains a combination of two types of nonionic surfactants having different HLB values, it has good compatibility with water and is easy to wash off. In addition, since the polymer is blended, the desired hairstyle can be maintained for a long time and the bangs can be prevented from falling.

The hair cosmetic composition of the present invention is described in detail below.
(A) Nonionic surfactant The (A) nonionic surfactant to be blended in the hair cosmetic of the present invention includes (A-1) a nonionic surfactant having an HLB of 1 to 6 and (A- 2) It contains a nonionic surfactant with an HLB of 7-20.

(A-1) The nonionic surfactant having an HLB of 1 to 6 is a surfactant having an HLB of 1 to 6, preferably 2 to 6, more preferably 3 to 5 and having relatively lipophilic properties. There is no particular limitation as long as it is used in cosmetics and the like.
For example, polyglyceryl-2 diisostearate, polyoxyethylene fatty acid glyceryl, polyoxyethylene/methylpolysiloxane copolymer, fatty acid sorbitan, fatty acid polyoxyethylene sorbitan, polyoxyethylene alkyl ether, polyglycol fatty acid ester, alkaloyldiethanolamide, It can be selected from fatty acid isopropanolamides and the like. Specific examples include self-emulsifying polyethylene glycol stearate (PG (SE) stearate), oleth-2, PEG-5 hydrogenated castor oil, ceteth-2, steareth-2, steareth-3, PEG-tristearate 10 glyceryl, PEG-5 hydrogenated castor oil isostearate, and the like.

(A-2) The nonionic surfactant having an HLB of 7 to 20 is a surfactant having an HLB of 7 to 20, preferably 8 to 19, more preferably 10 to 18 and having relatively hydrophilic properties. There is no particular limitation as long as it is used in cosmetics and the like.
For example, glycerin or polyglycerin fatty acid esters, propylene glycol fatty acid esters, POE sorbitan fatty acid esters, POE sorbit fatty acid esters, POE glycerin fatty acid esters, POE fatty acid esters, POE alkyl ethers, POE alkylphenyl ethers, It can be selected from POE/POP alkyl ethers, POE castor oil or hydrogenated castor oil derivatives, POE beeswax/lanolin derivatives, alkanolamides, POE propylene glycol fatty acid esters, POE alkylamines, POE fatty acid amides, and the like. Here, "POE" means polyoxyethylene and "POP" means polyoxypropylene. Specific examples include hydrogenated castor oils such as PEG-40 hydrogenated castor oil, PEG-50 hydrogenated castor oil, PEG-60 hydrogenated castor oil, PEG-60 glyceryl isostearate, and PEG-50 hydrogenated castor oil succinate. Includes oil derivatives, ceteth-25, and the like.

The blending amount of (A) surfactant in the hair cosmetic composition of the present invention is preferably 15 to 45% by mass, more preferably 20 to 45% by mass, still more preferably 25 to 40% by mass.

In the present invention, the ratio of the amount of (A-1) a nonionic surfactant with an HLB of 1 to 6 to the amount of a nonionic surfactant with an HLB of 7 to 20 (A-2) " When (A-1)/(A-2)" is within the range of 0.01 to 0.2, the effects of the present invention such as excellent hair washing properties can be obtained. If this ratio "(A-1)/(A-2)" is less than 0.01 or exceeds 0.2, desired hair-setting power and shampooability cannot be achieved.

(B) Oil Agent The hair cosmetic composition of the present invention contains (B) at least one oil agent selected from ester oils and hydrocarbon oils. The oil agent (B) in the present invention is an oil that is liquid at room temperature (liquid oil) and may contain either an ester oil or a hydrocarbon oil, but may contain both. Among them, it is preferable to contain an ester oil.

Examples of ester oils include, but are not limited to, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, isopropyl palmitate, isopropyl myristate, isopropyl stearate, isobutyl stearate, 2-ethylhexyl stearate, and isostearin. Isopropyl acid, butyl isostearate, decyl isostearate, lauryl isostearate, isodecyl isodecanoate, isodecyl isononanoate, isotridecyl isononanoate, isononyl isononanoate, neopentyl glycol dioctoate, glyceryl tri-2-ethylhexanoate, dicapric acid Propylene glycol, propylene glycol dicaprate, glyceryl tri(caprylic-capric) acid, trimethylolpropane triisostearate, pentaerythrityl tetra-2-ethylhexanoate, dipentaerythritol fatty acid ester, etc. can.

Hydrocarbon oils include, for example, mineral oil, liquid paraffin, squalane, squalene, vaseline, polybutene, polyisobutylene, and the like.

Other liquid oils that can be blended in addition to ester and/or hydrocarbon oils include wheat germ oil, rice germ oil, meadowfoam oil, rosemary oil, olive oil, castor oil, jojoba oil, macadamia nut oil, safflower. vegetable oils such as oils; fatty acid diglyceryls such as diglyceryl monoisostearate, diglyceryl diisostearate and diglyceryl triisostearate; lanolin; silicone oils such as methylpolysiloxane and methylphenylpolysiloxane; liquid higher alcohols such as isostearyl alcohol di (cholesteryl behenyl octyldodecyl) N-lauroyl-L-glutamate, cholesteryl 12-hydroxystearate, cholesterol derivatives such as macadamia nut oil fatty acid cholesteryl, di (phytosteryl N-lauroyl-L-glutamate) behenyl octyldodecyl), phytosterol derivatives such as macadamia nut oil fatty acid phytosteryl, but not limited thereto.

The blending amount of (B) the oil agent in the hair cosmetic composition of the present invention is preferably 1 to 30% by mass, more preferably 3 to 25% by mass, and still more preferably 5 to 20% by mass.
Also, the ratio of the amount of the ester oil to the total amount of the oil agent (B) is preferably 50% by mass or more, more preferably 60% by mass or more, and even more preferably 70% by mass or more.

Further, in the present invention, the blending amount of the (A) surfactant (that is, the total blending amount of the nonionic surfactant including (A-1) and (A-2)) and the (B) oil agent It is preferable that the ratio "A/B" to the blended amount of is within the range of 2 to 5. If this ratio is less than 2, it may not be possible to stably emulsify.

(C) Polyhydric alcohol The (C) polyhydric alcohol used in the present invention is not particularly limited as long as it is used in cosmetics and the like. Specific examples include dihydric to tetrahydric alcohols such as ethylene glycol, dipropylene glycol, propylene glycol, 1,3-butylene glycol, glycerin and diglycerin, and pentahydric to hexahydric alcohols such as sorbitol and mannitol. A derivative obtained by adding an alkylene oxide to a polyhydric alcohol may also be used.

The content of (C) the polyhydric alcohol in the hair cosmetic composition of the present invention is preferably 10 to 40% by mass, more preferably 13 to 35% by mass, still more preferably 15 to 30% by mass.

Further, in the present invention, the blending amount of the (A) surfactant (that is, the total blending amount of the nonionic surfactant including (A-1) and (A-2)) and the (C) polyvalent It is preferable to set the ratio “A/C” to the amount of alcohol in the range of 1-3. If this ratio exceeds 3, stickiness may occur and the setting power may be lowered.

(D) Polymer The (D) polymer blended in the hair cosmetic composition of the present invention is a polymer resin (hair (also referred to as a setting polymer). The "hair-setting polymer" in the present invention can be selected from, for example, hair-setting resins described in JP-A-2011-140500.

Specific examples of polymers preferably used in the present invention include the following.
Nonionic (nonionic) polymers include polyvinylpyrrolidone, vinyl methyl ether/alkyl maleate copolymer, vinylpyrrolidone/methacrylamide/vinylimidazole copolymer, polyvinylcaprolactam, octylacrylamide/hydroxypropyl acrylate/methacrylic acid. butylaminoethyl) copolymer, (alkyl acrylate/octyl acrylamide) copolymer, (vinyl acetate/crotonic acid/vinyl neodecanoate) copolymer, (PVP/vinyl caprolactam/DMAPA acrylate) copolymer, (vinyl pyrrolidone/DMAPA acrylate) copolymer , (vinylpyrrolidone/vinyl alcohol) copolymer [also referred to as (VP/VA) copolymer], polyacrylate crosspolymer-3, polyurethane-24, polyurethane-10 glucan, and the like.

Amphoteric polymers include (methacryloyloxyethyl carboxybetaine/alkyl methacrylate) copolymer , acrylates/lauryl acrylate/stearyl acrylate/ethyl amine oxide methacrylate copolymer, octylacrylamide/hydroxypropyl acrylate/butylaminoethyl methacrylate copolymer. polymers, dimethyldiallylammonium chloride /acrylic acid copolymers, dimethyldiallylammonium chloride/acrylamide/acrylic acid copolymers, and the like.

Examples of anionic (anionic) polymers include alkyl acrylate/diacetone acrylamide copolymer, alkyl acrylate/octyl acrylamide copolymer, vinyl acetate/crotonic acid/vinyl neodecanoate copolymer, acrylic acid/acrylic acid amide/ethyl acrylate copolymer, and the like.

In the present invention, it is particularly preferred to use one or more selected from the group consisting of (VP/VA) copolymer, polyacrylate crosspolymer-3, and (methacryloyloxyethyl carboxybetaine/alkyl methacrylate) copolymer. preferable.

The blending amount of the polymer (D) in the hair cosmetic composition of the present invention is preferably 0.5 to 5% by mass, more preferably 0.8 to 4% by mass, and still more preferably 1 to 3% by mass. .

(E) Water The amount of water incorporated in the hair cosmetic of the present invention is not particularly limited, but is preferably 20 to 40% by mass, more preferably 22 to 38% by mass, and still more preferably 24 to 40% by mass of the cosmetic. 35% by mass.

In the present invention, the blending amount of the (A) surfactant (that is, the total blending amount of the nonionic surfactant including (A-1) and (A-2)) and the (E) water blending amount It is preferable that the ratio "A/E" between the When this ratio exceeds 2, there is a tendency that the handling property and setting power of the cosmetic are lowered.

In addition to the above essential components (A) to (E), the hair cosmetic composition of the present invention may contain other optional components that are usually blended in hair cosmetics such as hair styling agents to the extent that the effects of the present invention are not impaired. can be blended as appropriate. Other optional ingredients include higher alcohols that are solid at room temperature (behenyl alcohol, etc.), lower alcohols with 6 or less carbon atoms (ethanol, etc.), powders, humectants (other than polyhydric alcohols), dispersants, preservatives, and antioxidants. , various chemicals, ultraviolet absorbers, thickeners, fragrances, and the like.

The hair cosmetic of the present invention can be produced according to a production method conventionally used for grease-like cosmetics.

The hair cosmetic composition of the present invention can be particularly suitably used as a hair styling agent (hair styling agent) in the form of grease or pomade, and can also be used as a formulation for adjusting the flow of eyebrows and beard.

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

Hair cosmetics were prepared according to the compositions shown in Tables 1 to 3 below, and actual use tests were conducted on the cosmetics of each example. In the test method, the cosmetics of each example were used by 5 specialist panels, and the evaluation points of each panelist were totaled based on the following evaluation point criteria, and the total points were evaluated based on the following criteria. The evaluation items were "ease of spreading", "ease of removing agent", "no stickiness", "setting power", "glossy feeling" and "washability".

(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.

On the other hand, the state of the cosmetics of each example was visually observed, and the results were evaluated as follows.
(double-circle): It was a fairly transparent state.
○: It was in a transparent state (slight turbidity).
x: Emulsified (opaque) or separated without emulsification.

Footnotes to Tables 1-3:
*1: NIKKOL PMS-SE (manufactured by Nikko Chemicals)
*2: Emalex 502 (manufactured by Nippon Emulsion Co., Ltd.)
*3: NIKKOL HCO-5 (manufactured by Nikko Chemicals)
*4: NIKKOL HCO-40 (manufactured by Nikko Chemicals)
*5: Youth Mole 50 (manufactured by Nikko Chemicals Co., Ltd.)
* 6: NIKKOL HCO-50 (manufactured by Nikko Chemicals)
* 7: NIKKOL HCO-60 (manufactured by Nikko Chemicals)
*8: Emalex 125 (manufactured by Nippon Emulsion Co., Ltd.)
* 9: Emalex GWIS-160 (manufactured by Nippon Emulsion Co., Ltd.)
*10: NIKKOL CIO (manufactured by Nikko Chemicals)
* 11: NIKKOL IPM (manufactured by Nikko Chemicals)

As shown in Table 1, Examples 1 to 5, which are hair cosmetics of the present invention, were fully satisfactory in all evaluated properties. On the other hand, (A-1) Comparative Example 1, in which the nonionic surfactant having an HLB of 1 to 6 was not blended, caused slight stickiness, and the hair-washability was also lowered. Moreover, in Comparative Example 2, in which the compounding ratio of surfactants with different HLBs, "(A-1)/(A-2)", exceeded 0.2, the stickiness and hair-washability were further deteriorated. In Comparative Example 3, which does not contain an oil agent, emulsification was not possible and separation occurred (Table 2).

The results shown in Table 3 show Comparative Examples 5 and 6 in which the ratio of the blending amount "A/B" is less than 2, Comparative Examples 5 and 7 in which the ratio of the blending amount "A/C" exceeds 3, It is shown that Comparative Example 4, in which the ratio "A/E" exceeds 2, deteriorated beyond the acceptable range for use in any of the evaluated properties.

Claims (6)

(A) a nonionic surfactant comprising (A-1) a nonionic surfactant having an HLB of 1 to 6 and (A-2) a nonionic surfactant having an HLB of 7 to 20;
(B) an oil agent containing at least one selected from ester oils and hydrocarbon oils;
(C) a polyhydric alcohol;
(D) a polymer; and (E) a hair cosmetic containing water,
The ratio "(A-1)/(A-2)" of the amount of (A-1) to the amount of (A-2) is within the range of 0.01 to 0.2 ,
The ratio “A/B” between the blending amount of the (A) nonionic surfactant (the total blending amount of (A-1) and (A-2)) and the blending amount of the (B) oil agent is 2 to is within the range of 5;
The ratio “A/C” between the blending amount of the (A) nonionic surfactant (the total blending amount of (A-1) and (A-2)) and the blending amount of the (C) polyhydric alcohol is is within the range of 1 to 3;
The ratio "A/E" between the amount of the nonionic surfactant (A) blended (total amount of (A-1) and (A-2) blended) and the amount of water (E) blended is 0.0. 5 to 2. A hair cosmetic, characterized in that: 2. The hair cosmetic composition according to claim 1 , wherein the oil (B) is an ester oil. 3. The hair cosmetic composition according to claim 1 , wherein the polymer (D) is a hair-setting polymer. Claim 3, wherein the (D) polymer is at least one selected from the group consisting of (VP/VA) copolymer, polyacrylate crosspolymer-3, and (methacryloyloxyethyl carboxybetaine/alkyl methacrylate) copolymer. The hair cosmetic described in . 5. The hair cosmetic composition according to any one of claims 1 to 4, wherein the content of (A) the nonionic surfactant is 20 to 45% by mass. 6. The hair cosmetic according to any one of claims 1 to 5, which does not contain microcrystalline wax and candelilla wax.