JP5014753B2 - Hair cosmetics - Google Patents

Description

  The present invention relates to a hair cosmetic excellent in care and styling of damaged hair.

  In recent years, the number of people suffering from damaged hair has increased, and many hair oils (hair treatment oils) for caring for damaged hair have recently been released. In general, many use vegetable oils and esters as a part of raw materials, and they are emulsified and used in an aqueous medium, or used in a non-aqueous system (100% oil) that does not use water.

For example, hair cosmetics containing a crystalline active ingredient and a copolymer or a salt thereof in a non-aqueous solvent or a hydrous lower alcohol solvent have been proposed (see, for example, Patent Document 1).
In particular, non-aqueous systems are becoming mainstream because they can treat damaged hair more effectively. However, current hair oils have drawbacks such as inability to make hairstyles due to lack of setting power, heavy texture, or styling due to strong smoothness, difficulty in drying due to oil, and poor washing off.

Since current hair oils have the above-mentioned drawbacks, it takes time and labor to repair styling agents (hair wax, etc.) after repairing damage with hair oils at beauty salons and the like.
JP-A-9-143035

  This invention solves said subject and aims at providing the hair cosmetics which can perform styling, repairing a damage.

The present inventor has intensively studied to achieve the above object, and has found that a specific hair cosmetic material achieves the above problems, and has completed the present invention.
That is, the present invention
0.05-30 wt% polymer, 0.05-60 wt% ethanol, 0.1-95 wt% oil, 0.1-15 wt% nonionic surfactant,
The weight ratio of ethanol to polymer (ethanol / polymer) is 0.5 to 6.0, the weight ratio of oil to polymer (oil / polymer) is 0.75 to 48, and a nonionic surfactant The weight ratio with oil (nonionic surfactant / oil) is 0.01 to 1.0,
And it is hair cosmetics characterized by not containing water substantially.

The oil is preferably at least one selected from the group consisting of silicone oil, ester oil, hydrocarbon, and vegetable oil.
It is preferred that the oil is di-2-ethylhexyl succinate.

The polymer is preferably at least one selected from the group consisting of a nonionic polymer, an anionic polymer, an amphoteric polymer, and a cationic polymer.
More preferably, the polymer is an anionic polymer.

It is particularly preferable that the polymer is at least one selected from the group consisting of polyurethane-14, acrylate copolymer AMP, and acrylic resin alkanolamine liquid.

The nonionic surfactant is preferably an ester nonionic surfactant having an HLB value in the range of 6 to 13.
The nonionic surfactant is a propylene glycol fatty acid ester, glycerin fatty acid ester, polyglycerin fatty acid ester, polyoxyethylene glycerin fatty acid ester, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbit fatty acid ester, and polyoxyethylene It is preferably at least one selected from the group consisting of glyceryl ether fatty acid esters.

  Since the hair cosmetic composition of the present invention has both the care and styling properties of damaged hair, hair care and styling can be performed simultaneously. Therefore, when the hair cosmetic composition of the present invention is used in a beauty salon or the like, hair care and styling can be completed in a shorter time than before.

Next, the hair cosmetic composition of the present invention will be specifically described.
In the present invention, “% by weight” indicates the amount of each component in 100% by weight of the hair cosmetic composition unless otherwise specified.

  The hair cosmetic composition according to the present invention comprises 0.05 to 30% by weight of polymer, 0.05 to 60% by weight of ethanol, 0.1 to 95% by weight of oil, and 0.1 to 15% by weight of nonionic surfactant. The weight ratio of ethanol to polymer (ethanol / polymer) is 0.5 to 6.0, and the weight ratio of oil to polymer (oil / polymer) is 0.75 to 48. The weight ratio of the nonionic surfactant to the oil (nonionic surfactant / oil) is 0.01 to 1.0 and is substantially free of water.

  In the present invention, hair cosmetics substantially free of water means hair cosmetics other than water contained in a trace amount in the raw material used for hair cosmetics and water mixed in the production of hair cosmetics. It means that water is not included in the food.

  Moreover, since ethanol usually contains a relatively large amount of water, it greatly affects the amount of water present in the hair cosmetic composition of the present invention. Therefore, ethanol having a purity of 95% or higher is usually used as the raw material of the present invention.

  Specifically, the water content is preferably 3% by weight or less with respect to 100% by weight of the hair cosmetic composition of the present invention. If the water content is 3% by weight or less, it is easy to increase the blending amount of the polymer and oil described later, and the effect on hair is excellent as compared with conventional hair cosmetics.

As the polymer used in the present invention, any polymer that is generally used for hair and can be used for fixing and fixing hair can be used without particular limitation.
The polymer is usually at least one selected from the group consisting of a nonionic polymer, an anionic polymer, an amphoteric polymer, and a cationic polymer.

Examples of the polymer include, for example, vinyl acetate / vinyl pyrrolidone copolymer and (hydrogenated castor oil / sebacic acid) copolymer as nonionic polymer, and polyurethane-14, acrylate copolymer as anionic polymer. AMP and acrylic resin alkanolamine liquid are mentioned, and the amphoteric polymer is N-methacryloyloxyethyl N, N-dimethylammonium-α-N-methylcarboxybetaine / methacrylic acid alkyl ester copolymer liquid, and is cationic. Examples of the polymer include vinyl pyrrolidone / N, N-dimethylaminoethyl methacrylic acid copolymer diethyl sulfate solution.

  Among these, an anionic polymer is preferable, and at least one selected from the group consisting of polyurethane-14, acrylate copolymer AMP, and acrylic resin alkanolamine liquid is preferable, and acrylic resin alkanolamine liquid is most preferable.

The hair cosmetic composition of the present invention contains the above-described polymer in an amount of 0.05 to 30% by weight, preferably 0.1 to 25% by weight, and particularly preferably 0.5 to 20% by weight.
By containing the polymer in the above range in the hair cosmetic composition of the present invention, it is possible to obtain a hair cosmetic composition having excellent hair setting power and excellent elasticity of the set hair.

  The hair cosmetic composition of the present invention contains 0.05 to 60% by weight of ethanol, preferably 0.1 to 55% by weight, particularly preferably 0.5 to 50% by weight. In the hair cosmetic composition of the present invention, when ethanol is contained within the above range, an appropriate quick drying property can be obtained, and the texture (so-called lightness) of the hair after styling can be adjusted. In the present invention, ethanol serves as a solvent for dissolving each component. Since ethanol acts as a solvent for dissolving each component, the resulting hair cosmetic is excellent in transparency.

  As the oil used in the present invention, any oil that is generally used for hair and can impart “moisture” or “gloss” to hair can be used without particular limitation.

Usually, silicone, ester oil, hydrocarbon, vegetable oil, etc. can be used as oil, and as silicone, dimethylpolysiloxane, methylphenylpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexane. Examples include pentasiloxane. Ester oils include di-2-ethylhexyl succinate, isopropyl myristate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyl decyl dimethyloctanoate , Cetyl lactate, myristyl lactate, lanolin acetate, isocetyl stearate, cholesteryl 12-hydroxystearylate, ethylene glycol di-2-ethylhexylate, dipentaerythritol fatty acid ester, monoisostearate N-alkyl glycol, neopentyl glycol dicaprate, Diisostearyl malate, glycerin di-2-heptylundecanoate, trimethylolpropane tri-2-ethylhexylate, trimethylol triisostearate Propane, pentaerythritol tetra-2-ethylhexylate, glyceryl tri-2-ethylhexylate, trimethylolpropane triisostearate, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, glyceryl trimyristate, tri-2-heptyl Undecanoic acid glyceride, castor oil fatty acid methyl ester, oleic acid oil, cetostearyl alcohol, acetoglyceride, 2-heptyl undecyl palmitate, N-lauroyl-L-glutamic acid-2-octyldodecyl ester, ethyl laurate, myristic acid 2 -Hexyldecyl, 2-hexyldecyl palmitate, etc. Examples of the hydrocarbon include liquid paraffin, squalene, paraffin, ceresin, squalane, petrolatum, and microcrystalline wax. Vegetable oils include avocado oil, cocoon oil, macadamia nut oil, corn oil, olive oil, rapeseed oil, egg yolk oil, sesame oil, persic oil, wheat germ oil, sasanqua oil, castor oil, linseed oil, safflower oil, cottonseed oil, soybean oil, Falling raw oil, tea seed oil, rice bran oil and the like are listed. These may be used alone or in combination of two or more.

Among the above oils, ester oils are preferable, and di-2-ethylhexyl succinate is particularly preferable.
The hair cosmetic composition of the present invention contains the above-mentioned oil in an amount of 0.1 to 95% by weight, preferably 1.0 to 85% by weight.

By containing the oil in the above range in the hair cosmetic composition of the present invention, the hair after styling is excellent in moistness, gloss, and moisturization.
The nonionic surfactant used in the present invention can be used without particular limitation as long as it is a nonionic surfactant that can be generally used for hair.

As the nonionic surfactant, those having an HLB value in the range of 6 to 13 are preferably used.
As the nonionic surfactant, an ester-based nonionic surfactant is preferably used. Examples of the ester-based nonionic surfactant include propylene glycol fatty acid ester, glycerin fatty acid ester, polyglycerin fatty acid ester, polyoxyethylene glycerin fatty acid ester, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbit fatty acid ester And polyoxyethylene glyceryl ether fatty acid ester. Even if these are used alone, 2
More than seeds may be used.

  Among them, polyoxyethylene glyceryl ether fatty acid ester is preferable, and polyoxyethylene glyceryl ether fatty acid ester is preferably polyisoethylene stearate polyoxyethylene glyceryl (HLB value: 8).

  The hair cosmetic composition of the present invention contains 0.1 to 15% by weight of a nonionic surfactant, preferably 0.5 to 10% by weight, particularly preferably 1.0 to 5.0% by weight. The hair cosmetic composition of the present invention is also excellent in rinsing properties when the nonionic surfactant is contained within the above range.

The hair cosmetic composition of the present invention contains the above polymer, ethanol, oil, and nonionic surfactant within the above range, and the weight ratio of each component is within the following range.
In the hair cosmetic composition of the present invention, the weight ratio of ethanol and polymer (ethanol / polymer) is 0.5 to 6.0, preferably 1.0 to 3.0. The hair cosmetic obtained when the weight ratio of ethanol and polymer is within the above range can dissolve each component efficiently, so that it is excellent in transparency and can be quickly dried.

  In the hair cosmetic composition of the present invention, the weight ratio of oil to polymer (oil / polymer) is 0.75 to 48, preferably 1.0 to 5.0. Hair cosmetics obtained when the weight ratio of oil to polymer is within the above range can easily make movements for styling while maintaining a moist feeling of oil, and can maintain a glossy style.

  Furthermore, in the hair cosmetic composition of the present invention, the weight ratio of the nonionic surfactant to oil (nonionic surfactant / oil) is 0.01 to 1.0, preferably 0.05 to 0.5% by weight. It is. When the weight ratio of the nonionic surfactant to the oil is within the above range, the hair cosmetic obtained is excellent in wash-off properties.

The hair cosmetic composition of the present invention may further contain a humectant. As the humectant, a polyol can be used. Specifically, ethylene glycol, propylene glycol, 1,3-butylene glycol, hexylene glycol, glycerin, diethylene glycol, triethylene glycol, polyethylene glycol, polypropylene glycol, polyglycerin. Etc. can be used.

When a humectant is included, the content is not particularly limited, and a desired amount can be added for the purpose of moisturizing.
The above polyols may be used alone or in combination of two or more.

  Furthermore, the hair cosmetic composition of the present invention is characterized by substantially not containing water. By substantially not containing water, the hair cosmetic composition of the present invention can effectively take care of damaged hair and can simultaneously perform styling.

  The hair cosmetic composition of the present invention contains the above-mentioned polymer, ethanol, oil, and nonionic surfactant in the above amounts, and the weight ratio of ethanol to polymer (ethanol / polymer), the weight ratio of oil to polymer (oil / Polymer), the weight ratio of nonionic surfactant to oil (nonionic surfactant / oil) satisfies the above range and is substantially free of water. There is no limitation.

As a manufacturing method of the hair cosmetics of this invention, it can manufacture, for example by stirring, mixing, heating, cooling, melt | dissolving, etc. each component mentioned above suitably by a well-known method.
The hair cosmetic composition of the present invention is preferably in the form of a liquid or a paste from the viewpoint of operability during application to the hair.

EXAMPLES Hereinafter, although this invention is demonstrated further more concretely based on an Example, this invention is not limited to these Examples.
[Evaluation method]
In this example, the following items were evaluated as described below.

The items evaluated were seven items: stability, transparency, ease of flow, quick drying, setting power, moist feeling, and gloss.
<Stability>
The obtained hair cosmetic was stored for 3 months at 5 ° C., 25 ° C. and 45 ° C., and the appearance at each temperature zone was observed to evaluate the stability.

◎: Separation / solidification does not occur at all and very high stability ○: Separation / solidification is slightly observed but stable △: Separation or solidification is severe and no stability ×: Separation and solidification Severe, no stability at all <Transparency>
The obtained hair cosmetic was stored for 3 months at 5 ° C., 25 ° C., and 45 ° C., and the transparency was evaluated by observing the appearance at each temperature zone.

◎: Highly transparent ○: Transparent △: Slightly turbid ×: Very dirty and poorly transparent <Ease of washing (good wash-off)>
Made by Beaulux, 30cm of human hair bundle, about 10g of hair cosmetics obtained is applied 0.5g, blow-dried with a dryer, and then the treated hair is hand-washed by a professional tester (hairdresser) Sensory evaluation to confirm the touch was performed to evaluate the ease of washing.

◎: Very easy to wash ○: Easy to wash △: Difficult to wash ×: Very difficult to wash <Quick drying>
Made by Beaulux Co., Ltd. Applying 0.5g of the hair cosmetic obtained for human hair bundles of about 10g to 30cm, a professional tester (beautician) performs sensory evaluation and evaluates quick drying properties when blow drying with a dryer. did.

◎: Very quick-drying ○: Quick-drying △: No quick-drying, it takes time to dry ×: No quick-drying, very long time to dry <Set power>
Made by Beaulux, human hair bundle 30cm, apply about 10g of hair cosmetics obtained, and after blow drying with a dryer, a professional tester (beautician) performs sensory evaluation and evaluates set power did.

◎: Very good set power ○: High set power △: Not very set power ×: No set power at all <Moisture>
Made by Beaulux, human hair bundle 30cm, apply 0.5g of the obtained hair cosmetic to about 10g, blow dry with a dryer, and then a professional tester (beautician) performs sensory evaluation and evaluates the moist feeling did.

◎: Very moisturized ○: Moisture △: Not very moisturized ×: Not moistened at all <Gloss>
Made by Beaulux, 30cm of human hair bundle, about 10g of hair cosmetic obtained is applied 0.5g, blow-dried with a dryer, then a professional tester (beautician) performs sensory evaluation and evaluates glossiness did.

◎: very glossy ○: glossy △: not very glossy ×: no glossiness [Examples 1 to 14]
Each component was stirred and mixed at the components and ratios shown in Table 1 to obtain a hair cosmetic.

  The obtained hair cosmetic was evaluated by the above evaluation method, and the results are shown in Table 1.

[Comparative Examples 1 to 7]
Each component was stirred and mixed at the components and ratios shown in Table 2 to obtain a hair cosmetic.
The obtained hair cosmetic was evaluated by the above evaluation method, and the results are shown in Table 2.

Claims (5)

0.05-30 wt% polymer, 0.05-60 wt% ethanol, 0.1-95 wt% oil, 0.1-15 wt% nonionic surfactant,
The polymer is at least one polymer selected from the group consisting of a nonionic polymer, an anionic polymer, an amphoteric polymer and a cationic polymer;
The oil is an ester oil;
The nonionic surfactant is polyoxyethylene glyceryl ether fatty acid ester,
The weight ratio of ethanol to polymer (ethanol / polymer) is 0.5 to 6.0, the weight ratio of oil to polymer (oil / polymer) is 0.75 to 48, and a nonionic surfactant The weight ratio with oil (nonionic surfactant / oil) is 0.01 to 1.0,
And the hair cosmetics characterized by not containing water substantially. The hair cosmetic according to claim 1, wherein the oil is di-2-ethylhexyl succinate. The hair cosmetic according to claim 1 or 2, wherein the polymer is an anionic polymer. The hair according to any one of claims 1 to 3 , wherein the polymer is at least one selected from the group consisting of polyurethane-14, acrylate copolymer AMP, and an acrylic resin alkanolamine solution. Cosmetics.   The hair cosmetic according to any one of claims 1 to 4, wherein the nonionic surfactant is polyoxyethylene glyceryl triisostearate.