JP5618269B2 - Cosmetics and raw materials for manufacturing cosmetics - Google Patents

Description

  The present invention relates to cosmetics and raw materials for producing cosmetics.

  It is known that a wood vinegar solution or a purified solution thereof has an action of improving skin symptoms such as sweat rash, dry skin, athlete's foot, water wart, and atopic dermatitis. Conventionally, the main use is a bath agent, and when 10-20 mL of wood vinegar liquid or its refined liquid is put into a bath and bathed, an active ingredient will osmose | permeate skin over the bathing time.

  By the way, in order to make extensive use of the excellent properties of the wood vinegar liquid or its purified liquid, there is a growing need for use in cosmetic liquids such as sprays and lotions in addition to bathing agents. However, in the case of the cosmetic liquid, since the wood vinegar liquid or the purified liquid thereof volatilizes, the time of contact with the skin is extremely short unlike the bathing agent, and the actual feeling for improvement of the skin symptoms is small.

  Patent Document 1 described later discloses a cosmetic in which glycerin is added to a wood vinegar solution. Although this cosmetic has a moisturizing effect improved by glycerin, glycerin is also an aqueous component and is likely to volatilize like the vinegar. For this reason, when this cosmetic is used as a cosmetic liquid, the effect of improving skin symptoms is still insufficient.

Japanese Patent Laid-Open No. 11-60465

  As a result of studying combinations of various materials from the viewpoint of suppressing the volatilization of cosmetics, the present inventors have come to focus on using a cosmetic oil together with a wood vinegar liquid or a purified liquid thereof. However, the pyroligneous acid solution or its purified solution is strongly acidic with a pH of about 2.5, so it was extremely difficult to emulsify with cosmetic oil. If the wood vinegar liquid or the purified liquid thereof can be emulsified with the cosmetic oil, the use is expanded to various cosmetics such as creams as well as the cosmetic liquid.

  This invention is made | formed in view of the above situation, and provides the raw material for cosmetics manufacture for manufacturing the cosmetics which disperse | distributed wood vinegar liquid or its refined liquid, and cosmetic oil, and the cosmetics. For the purpose.

  The present inventors have found that by using an endoplasmic reticulum of an amphiphilic substance having self-organization ability as an emulsifier, the wood vinegar liquid or a purified liquid thereof and cosmetic oil are well dispersed, and the present invention is completed. It came to. Specifically, the present invention provides the following.

  (1) An aqueous phase containing a pyroligneous acid liquid or a purified liquid thereof, a cosmetic oil, and an endoplasmic reticulum of an amphiphilic substance having self-organizing ability, and containing the pyroligneous acid liquid or the purified liquid thereof, and the cosmetic A cosmetic in which an oil phase containing oil is dispersed by vesicles of the amphiphilic substance.

  (2) The cosmetic according to (1), wherein the cosmetic oil contains camellia oil.

  (3) The cosmetic according to (1) or (2), wherein the purified liquid is all or part of a product obtained by distilling wood vinegar.

  (4) The cosmetic according to any one of (1) to (3), wherein the aqueous phase constitutes a continuous phase and the oil phase constitutes a discontinuous phase.

  (5) The cosmetic according to any one of (1) to (3), wherein the oil phase constitutes a continuous phase and the aqueous phase constitutes a discontinuous phase.

  (6) A raw material for manufacturing cosmetics, comprising a wood vinegar solution or a purified solution thereof, and an endoplasmic reticulum of an amphiphilic substance having self-organizing ability.

  (7) A method of improving the cosmetic function of a wood vinegar liquid or a purified liquid thereof by emulsifying the wood vinegar liquid or a purified liquid thereof with a cosmetic oil in an endoplasmic reticulum of an amphiphilic substance having self-organizing ability.

  According to the present invention, an oil phase containing cosmetic oil and an aqueous phase containing a pyroligneous acid solution or a purified solution thereof can be dispersed by including an endoplasmic reticulum of an amphiphilic substance having self-organization ability.

  Hereinafter, although embodiment of this invention is described, this invention is not limited by this.

  The cosmetic according to the present invention contains a wood vinegar solution or a purified solution thereof, a cosmetic oil, and an endoplasmic reticulum of an amphiphilic substance having self-organization ability. Due to the excellent emulsifying action of the vesicles of the amphiphilic substance, the strongly acidic pyroligneous acid solution or purified liquid thereof and the cosmetic oil are emulsified, and the oil phase and the aqueous phase are dispersed. Thereby, since volatilization from the skin of a wood vinegar liquid or its refined liquid is suppressed, the cosmetics of this invention have the improvement effect of the outstanding skin symptom. Moreover, since the operation | work which stirs cosmetics before use and disperse | distributes an oil phase and a water phase is unnecessary, or lightness is enough, the cosmetics which concern on this invention are convenient for handling.

  Wood vinegar is a liquid obtained by dry distillation of any plant such as wood or bamboo, and includes so-called bamboo vinegar. Since wood vinegar contains a phenolic component such as tannin, it is presumed to exhibit an excellent effect of improving skin symptoms.

  Cosmetic oil refers to an oil that can be used in cosmetics, and specifically includes olive oil, cocoon oil, rice oil, palm oil, soybean oil, coconut oil, cacao oil, and the like, or a mixture thereof, but is not particularly limited. However, the cosmetic oil preferably contains a salmon oil that is gentle to both the skin and the hair in consideration of the usefulness of the cosmetic as a rinse. Note that coconut oil refers to colorless to slightly yellow oil collected from cocoon seeds.

  The content ratio between the wood vinegar or purified liquid and the cosmetic oil may be appropriately selected according to the use of the cosmetic, the emulsion structure, and the like. Usually, the content ratio of the wood vinegar or purified liquid and the cosmetic oil is 5:95 to 95: 5 (mass ratio). In the W / O type emulsion, volatilization of the wood vinegar or purified liquid from the skin is highly suppressed, so a smaller amount of cosmetic oil is sufficient than in the case of the O / W type emulsion, but the oil phase constitutes the continuous phase. A minimum amount of cosmetic oil (usually 25% by mass or more of the cosmetic) is required. On the other hand, in the O / W type emulsion, a relatively large amount of cosmetic oil is necessary to suppress volatilization of the wood vinegar liquid or purified liquid from the skin, while the aqueous phase constitutes a continuous phase. The amount that can be added (usually 70% by mass or less of the cosmetic) is limited.

  It is preferable that a refinement | purification liquid is all or one part of what is obtained by distilling a wood vinegar liquid. Here, what is obtained by distilling a wood vinegar liquid refers to a thing obtained by removing a distillation residue such as a high boiling point tar from the components contained in the wood vinegar liquid.

  The vesicle of an amphiphilic substance having self-organization ability is disclosed in JP-A-2006-239666 and has an average particle diameter of 8 nm to 500 nm when forming an emulsion and 200 nm to 800 nm when adjusting a dispersant. . The content of the endoplasmic reticulum is not particularly limited, but may be 0.1 to 15% by mass, preferably 0.3 to 9%.

  The amphiphilic substance is not particularly limited, but is a polyoxyethylene hydrogenated castor oil derivative represented by the following general formula 1, or a dialkylammonium derivative, a trialkylammonium derivative or a tetraalkylammonium derivative represented by the general formula 2. , Derivatives of halogenated salts of dialkenyl ammonium derivatives, trialkenyl ammonium derivatives, or tetraalkenyl ammonium derivatives.

General formula 1

  In the formula, E, which is the average added mole number of ethylene oxide, may be about 3 to 100 in that it can be stably dispersed even at a low pH of the pyroligneous acid solution.

General formula 2

  In the formula, R 1 and R 2 are each independently an alkyl group or alkenyl group having 8 to 22 carbon atoms, R 3 and R 4 are each independently hydrogen or an alkyl group having 1 to 4 carbon atoms, and X is F, Cl, Br or I.

  As the amphiphilic substance, phospholipids, phospholipid derivatives and the like may be employed. As the phospholipid, among the structures represented by the following general formula 3, DLPC (1,2-Dilauroyl-sn-glycero-3-phospho-rac-1-choline) having a carbon chain length of 12, DMPC (1,2-Dimyristol-sn-glycero-3-phospho-rac-1-choline), DPPC with a carbon chain length of 16 (1,2-Dipalmitoyyl-sn-glycero-3-phospho-rac-1-choline) Can be adopted.

General formula 3

  In addition, among the structures represented by the following general formula 4, DLPG (1,2-Diilauroyl-sn-glycero-3-phospho-rac-1-glycerol) Na salt or NH4 salt, carbon chain of carbon chain length 12 Na or NH4 salt of DMPG having a length of 14 (1,2-Dimyristol-sn-glycero-3-phospho-rac-1-glycerol), DPPG having a carbon chain length of 16 (1,2-Dipalmitoyyl-sn-glycero-3) -Phospho-rac-1-glycerol) Na salt or NH4 salt may be employed.

Formula 4

  Furthermore, egg yolk lecithin or soybean lecithin may be employed as the phospholipid. In addition, when emulsifying and dispersing cosmetic oil using an emulsifier formed of vesicles, the mass ratio of the cosmetic oil and the emulsifier is preferably 4 to 200.

  The cosmetic according to the present invention may contain optional components such as a moisturizer, a thickener, an antiseptic sterilizer, a powder component, an ultraviolet absorber, a pigment, and a fragrance in addition to the above essential components. . Due to the excellent emulsifying action of the vesicles of the amphiphilic substance, a wide variety of optional components can be dispersed well regardless of aqueous or oily, pH and the like.

  The above cosmetics have an O / W emulsion structure (the aqueous phase constitutes a continuous phase and the oil phase constitutes a discontinuous phase) or a W / O emulsion structure (the oil phase is a continuous phase) depending on the application. And the aqueous phase constitutes a discontinuous phase. Although not particularly limited, the former is preferable for applications such as lotions, sprays and hair conditioners, and the latter is preferable for applications such as emulsions and creams.

  The method for producing a cosmetic according to the present invention comprises a pyroligneous acid solution or a purified solution thereof, a dispersion containing an vesicle of an amphiphile and an optional aqueous component, and a dispersed oil including a cosmetic oil and an optional oil component. Mixing. The emulsion structure of the cosmetic can be determined by the mixing ratio of the dispersed water and the dispersed oil, which one of the dispersed water and the dispersed oil is dropped on the other, and the like. That is, the O / W emulsion structure can be manufactured by increasing the ratio of dispersed water. The W / O emulsion structure can be produced by increasing the ratio of the dispersed oil.

  Any component that dissolves in the phase constituting the continuous phase of the emulsion may be added after the emulsion is formed. For example, when the continuous phase is an aqueous phase, the component having water dispersibility may be added to water before the emulsion formation, or may be added to the aqueous phase after the emulsion formation. Other specific conditions may be selected as appropriate in accordance with a known technique (for example, JP-A-2006-239666).

  The present invention also provides a raw material for producing cosmetics comprising a wood vinegar solution or a purified solution thereof, and an vesicle of an amphiphilic substance having self-organizing ability. This raw material for producing a cosmetic is useful in that it can be easily produced by mixing with a cosmetic oil. In addition, as needed, a water dispersible component may be contained among optional components such as a moisturizer, a thickener, an antiseptic sterilizer, a powder component, an ultraviolet absorber, a pigment, and a fragrance. In addition, in the raw material for producing cosmetics according to the present invention, the pyroligneous acid liquid or the purified liquid thereof, the vesicle of the amphiphilic substance, and if necessary, the optional components may coexist in the same liquid. It may be separated in.

  The present invention also provides a method for improving the cosmetic function of a wood vinegar liquid or a purified liquid thereof by emulsifying the wood vinegar liquid or a purified liquid thereof with a cosmetic oil in a vesicle of an amphiphilic substance having self-organizing ability. . Since the cosmetic oil is well emulsified by the vesicles of the amphiphilic substance, volatilization of the wood vinegar liquid or the purified liquid thereof is suppressed, and skin symptoms can be improved in many applications, and the cosmetic function is improved. Further, according to this method, various cosmetic oils are dispersed. Therefore, the cosmetic function can be maximized by selecting a desired cosmetic oil as a cosmetic.

<Example>
1.0 mL of a dispersion of polyoxyethylene hydrogenated castor oil derivative (average number of added moles (E) of 100) was added to 49 mL of a potted wood vinegar “Shobi Hayashi” (manufactured by M & G) and mixed. To the mixture, 50 mL of camellia oil (JA Tokyo Shimashojima store) obtained from Yabutsubaki was added dropwise while stirring at a rotational speed of 3000 to 9000 rpm at room temperature, and the concentration of the polyoxyethylene hydrogenated castor oil derivative was based on the total amount. The cosmetic liquid in which the continuous phase was an aqueous phase and the discontinuous phase was an oil phase was prepared by adjusting the content to 1.0% by mass and maintaining stirring for 5 to 10 minutes.

(Comparative example)
A cosmetic liquid was prepared in the same manner as in Example 1 except that sorbitan monostearate was used in place of the polyoxyethylene hydrogenated castor oil derivative.

  The cosmetic of Example 1 was well dispersed in the water phase and the oil phase, and even if there was a slight difference in the concentration over time, the cosmetic was immediately dispersed with slight vibration. On the other hand, in the cosmetic liquid of Comparative Example 1, the water phase and the oil phase were completely separated, and did not disperse even when vibrated strongly.

Claims (6)

A wood vinegar liquid or a refined liquid thereof, a cosmetic oil, and an endoplasmic reticulum of an amphiphilic substance having self-organizing ability, an aqueous phase containing the wood vinegar liquid or the purified liquid thereof, and the cosmetic oil The oil phase is dispersed in a continuous phase composed of one by the vesicle of the amphiphile and the other constitutes a discontinuous phase, and the content of the wood vinegar solution or purified liquid thereof and cosmetic oil Cosmetics having a ratio of 5:95 to 95: 5 (mass ratio) .   The cosmetic according to claim 1, wherein the cosmetic oil contains camellia oil.   The cosmetic according to claim 1 or 2, wherein the purified liquid is all or a part of a product obtained by distilling wood vinegar.   The cosmetic according to any one of claims 1 to 3, wherein the water phase constitutes a continuous phase and the oil phase constitutes a discontinuous phase.   The cosmetic according to any one of claims 1 to 3, wherein the oil phase constitutes a continuous phase and the aqueous phase constitutes a discontinuous phase. The cosmetic according to any one of claims 1 to 5, which is in a liquid form.