JP5779377B2 - Solid oily cleansing cosmetic - Google Patents

Description

  The present invention relates to a solid oily cleansing cosmetic.

  In recent years, makeup cosmetics excellent in water resistance and oil resistance have been developed, and the cosmetic durability has been remarkably improved. For this reason, oil-based cleansing cosmetics that are well-familiar with makeup cosmetics and excellent in removing dirt are used. Among these oil-based cleansing cosmetics, liquid oil-based cleansing cosmetics based on liquid oil are known to be particularly excellent in familiarity with makeup cosmetics and have a high cleansing effect. However, liquid oil-based cleansing cosmetics have a problem of low viscosity, making it difficult to sag during use and massage when blended with makeup cosmetics. In addition, there is also a problem that a rubbing operation during use is easily transmitted directly to the skin, and a burden or irritation to the skin is felt strongly.

  Then, in order to improve dripping of liquid oil-based cleansing cosmetics, oil-based cleansing cosmetics in which liquid oil is thickened using an oil gelling agent have been proposed (see Patent Documents 1 and 2). However, these cleansing cosmetics have a strong sticky feeling after washing, and the viscosity is lowered by rubbing, which may cause a problem of dripping.

  Moreover, the cleansing cosmetics solidified by using together high melting | fusing point solid oil, liquid oil, and a nonionic surfactant are also proposed (refer patent document 3).

JP 2000-136114 A JP 2005-194290 A JP 2001-213726 A

  However, these cleansing cosmetics are difficult to dripping off, but have a problem that they are not well-matched with makeup cosmetics and the cleansing effect is not sufficient.

  Therefore, the present invention is a solid oil-based cleansing cosmetic that has no sagging off of the cleansing cosmetic and has a low burden on the skin due to rubbing, but has good compatibility with a makeup cosmetic, excellent in removing dirt, and An object of the present invention is to provide a solid oil-based cleansing cosmetic excellent in refreshing feeling after washing.

  Therefore, the present inventor has conducted various studies to develop oil-based cleansing cosmetics that are solid but have good compatibility with makeup cosmetics, excellent dirt removal, and a refreshing feeling after washing. In a solid oil-based cleansing cosmetic containing a solid hydrocarbon oil having a melting point, a liquid oil, and a nonionic surfactant having a specific HLB, the ester oil content in the liquid oil should be 35% by mass or more. Thus, the present inventors have found that they are well-familiar with makeup cosmetics, have an excellent cleansing effect, and improve a feeling of use such as a refreshing feeling after washing.

That is, this invention provides the solid oil-based cleansing cosmetic characterized by containing the following (A)-(C) component.
(A) Hydrocarbon oil having a melting point of 60 to 120 ° C. 5 to 15% by mass in the total amount of the cosmetic
(B) Liquid oil containing 35% by mass or more of ester oil based on the total amount of liquid oil (C) Nonionic surfactant having an HLB value of 5 to 13 In the total amount of cosmetic, 5 to 30% by mass

  Since the solid oily cleansing cosmetic composition of the present invention is solid, the cleansing cosmetic composition does not fall off, and the burden on the skin due to rubbing is small. In addition, it has good compatibility with makeup cosmetics and is excellent in removing dirt. In addition, it feels refreshing after washing.

The (A) hydrocarbon oil used in the present invention is a hydrocarbon oil having a melting point of 60 to 120 ° C., preferably a hydrocarbon oil having a melting point of 70 to 110 ° C., in terms of moldability and stability over time. It is.
Specific examples include hydrocarbons such as polyethylene wax, ethylene / propylene copolymer, paraffin wax, microcrystalline wax, synthetic wax, Fischer-Tropsch wax, ozokerite wax, and ceresin wax. These may be used alone or in combination of two or more as required.

  The content of the component (A) in the total amount of the cosmetic is 5 to 15% by mass, preferably 7 to 12% by mass, more preferably 7 to 10% by mass, from the viewpoint of usability and ease of removal. is there.

  (B) Liquid oil used by this invention will not be restrict | limited especially if it is an oil agent which has fluidity | liquidity at normal temperature (25 degreeC). For example, isocetyl isostearate, ethylene glycol di-2-ethylhexanoate, cetyl 2-ethylhexanoate, trimethylolpropane tri-2-ethylhexanoate, pentaerythritol tetra-2-ethylhexanoate, cetyl octanoate, tetra Pentaerythryl octanoate, glyceride tri-2-heptylundecanoate, diisobutyl adipate, 2-hexyldecyl sebacate, glyceryl trioctanoate, glyceryl triisopalmitate, diisostearyl malate, isopropyl myristate, 2-octyldodecyl Oleate, hexyldecyl dimethyloctanoate, 2-hexyldecyl myristate, myristyl myristate, octyldodecyl myristate, isopropyl palmitate, 2-ethylhexyl pal Tate, 2-hexyldecyl palmitate, 2-heptylundecyl palmitate, butyl stearate, isocetyl stearate, decyl oleate, dodecyl oleate, oleyl oleate, myristyl lactate, cetyl lactate, cholesteryl 12-hydroxystearate, Castor oil fatty acid methyl ester, 2-ethylhexyl succinate, 2-hexyldecyl adipate, di-2-heptylundecyl adipate, diisopropyl sebacate, di-2-ethylhexyl sebacate, neopentyl glycol dicaprate, neopentyl dioctanoate Pentyl glycol, glyceryl tri-2-ethylhexanoate, glyceryl trimyristate, glyceride tri-2-heptylundecanoate, trimethylolpropane triisostearate, tri -Glyceryl ethylhexanoate, glyceryl trioctanoate, glyceryl triisopalmitate, triglycerin, isopropyl myristate, isopropyl palmitate, hexyl laurate, oleyl oleate, decyl oleate, octyldodecyl myristate, hexyldecyl dimethyloctanoate , Diethyl phthalate, dibutyl phthalate, dioctyl succinate, fluorine-modified ester oil, trioctanoin, tripropylate dipivalate, etc .; oilseed oil, camellia oil, macadamia nut oil, corn oil, mink oil, olive oil, avocado Oil, sasanqua oil, castor oil, safflower oil, kyounin oil, cinnamon oil, jojoba oil, grape oil, sunflower oil, almond oil, rapeseed oil, sesame oil, wheat germ oil, rice germ oil, rice Nuka oil, cottonseed oil, soybean oil, peanut oil, tea seed oil, evening primrose oil, egg yolk oil, cow leg oil, liver oil and other animal and vegetable oils; α-olefin oligomer, light isoparaffin, light liquid isoparaffin, liquid isoparaffin, liquid paraffin, synthetic Hydrocarbon oil such as squalane, vegetable squalane, polybutene, hydrogenated polyisobutene; chain silicone such as dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodeca Cyclic silicone such as methylcyclohexasiloxane, amino modified silicone oil, polyether modified silicone oil, carboxy modified silicone oil, alkyl modified silicone oil, ammonium salt modified silicone oil, fluorine modified silicone oil Silicone oils; oleic acid, tall oil fatty acids, higher fatty acids such as isostearic acid; lauryl alcohol, oleyl alcohol, isostearyl alcohol, octyl dodecanol, and higher alcohols such as jojoba alcohol.

  In this invention, it is necessary to contain 35 mass% or more of ester oil with respect to (B) liquid oil whole quantity, Preferably it is 40 mass% or more, More preferably, it is 45-90 mass%, Most preferably, 55-55 mass%. 85% by mass is contained. If it is in the said range, it will be familiar with makeup cosmetics, moldability and storage stability will be good, there will be little feeling of friction at the time of massage, and it will be excellent in the refreshing feeling after washing | cleaning.

  Of these liquid oils, the ester oil is preferably (B1) an ester oil of a monohydric higher fatty acid and a monohydric alcohol and (B2) from the viewpoint of good compatibility with makeup cosmetics and excellent stain removal. ) It is preferable to contain one or two or more kinds selected from triester oils of linear fatty acids having 8 to 12 carbon atoms and glycerin, and particularly (B1) one for the total amount of ester oil in the liquid oil. 80 mass% or more of one or more selected from ester oils of monovalent fatty acids and monohydric higher alcohols and (B2) triester oils of linear fatty acids having 8 to 12 carbon atoms and glycerin. Is more preferable, and 90 mass% or more is more preferable.

  (B1) Examples of ester oils of monovalent higher fatty acids and monohydric alcohols include ester oils of fatty acids having 8 to 20 carbon atoms and alcohols having 2 to 20 carbon atoms, specifically 2-ethylhexane. Cetyl acid, ethyl 2-ethylhexanoate, stearyl 2-ethylhexanoate, isostearyl 2-ethylhexanoate, ethylhexyl isononanoate, isononyl isononanoate, isopropyl myristate, isodecyl isononanoate, isopropyl palmitate, ethylhexyl palmitate, laurin Examples thereof include hexyl acid and ethyl hexyl isopalmitate, and isopropyl palmitate, ethyl hexyl palmitate and ethyl hexyl isopalmitate are preferred from the viewpoint of easy availability on the market and feeling of use. In addition, examples of triester oils of linear fatty acids having 8 to 12 carbon atoms and glycerin include glyceryl tricaprate, glyceryl tricaprylate, glyceryl tri (capryl / caprin), glyceryl trilaurate, and natural coconut oil. Examples include vegetable oils, and glyceryl tricaprate, glyceryl tricaprylate, and glyceryl tri (capryl / caprin) are preferred from the standpoint of familiarity with makeup and feeling of use.

  When (B1) monohydric higher fatty acid and ester oil of monohydric alcohol and (B2) triester oil of linear fatty acid having 8 to 12 carbon atoms and glycerin are used in combination, in these liquid oils If the content ratio [(B1) :( B2)] is in the range of 2: 1 to 1: 2, preferably 3: 2 to 2: 3, the makeup cosmetics are easy to adjust and remove stains. Excellent.

  The content mass ratio (B / A) in the composition of the component (A) and the component (B) is preferably 4 to 18, more preferably 5 to 13, and further preferably 7 to 11. . If it is in the said range, there is no dripping, it is easy to take off, and it is excellent in moldability.

  The component (C) used in the present invention is a nonionic surfactant having an HLB value of 5 to 13, and preferably a nonionic surfactant having an HLB value of 7 to 12.5. The nonionic surfactant is not particularly limited. For example, glycerin fatty acid ester, polyglycerin fatty acid ester, sorbitan fatty acid ester, polyoxyethylene hydrogenated castor oil, polyoxyethylene alkyl ether, fatty acid polyoxyethylene glyceryl, Examples include polyether-modified silicone and polyglycerin-modified silicone.

  Specifically, polyglyceryl stearate-2 (HLB: 5.0), polyglyceryl oleate-2 (HLB: 5.5), glyceryl triisostearate-2 (HLB: 5.5), polyglyceryl stearate-4 (HLB: 6.0), polyglyceryl-4 oleate (HLB: 6.0), polyglyceryl tristearate-10 (HLB: 7.5), polyglyceryl-10 trioleate (HLB: 7.0), palmitic Sorbitan acid (HLB: 6.7), sorbitan isostearate (HLB: 5.0), PEG-5 hydrogenated castor oil (HLB: 6.0), PEG-10 hydrogenated castor oil (HLB: 6.5) , Ceteth-2 (HLB: 8.0), steareth-2 (HLB: 8.0), oleth-2 (HLB: 7.5), behenez-5 (HLB: 7. ), (C12-14) Palace-3 (HLB: 8.0), Di (C12-15) Palace-2 phosphate (HLB: 6.5), Tri (C12-15) Palace-2 phosphate (HLB) : 7.0), di (C12-15) palace-6 phosphate (HLB: 8.0), PEG-10 glyceryl tristearate (HLB: 5.0), PEG-10 glyceryl triisostearate (HLB: 5.0), PEG-10 glyceryl trioleate (HLB: 5.0), PEG-3 glyceryl isostearate (HLB: 6.0), PEG-10 glyceryl diisostearate (HLB: 7.0), isostearic acid PEG-5 glyceryl (HLB: 8.0), PEG-20 glyceryl triisostearate (HLB: 8.0), polyglycerin caprate (HLB: 9.5) Triisostearate PEG-30 glyceryl (HLB: 10.0), isostearic acid PEG-20 glyceryl (HLB: 12), and the like.

  Of these, fatty acid polyoxyethylene glyceryl is preferable, and polyoxyethylene glyceryl triisostearate is more preferable. In particular, the number of moles of ethylene oxide added to polyoxyethylene glyceryl triisostearate is more preferably 10 to 30 moles.

  Here, the HLB (hydrophilic-lipophilic balance) value is generally a value indicating the affinity of a surfactant to water and oil, and can be easily determined by the Griffin method.

  The content of the component (C) in the total amount of the cosmetic is 5 to 30% by mass, preferably 5 to 20% by mass, more preferably, from the viewpoint of easy washing after washing and a refreshing feeling after washing. It is 8-15 mass%.

  The solid oil-based cleansing cosmetic composition of the present invention includes, in addition to the essential components described above, waxes such as montan wax, molasses, beeswax, candelilla wax, carnauba wax, rice bran wax, and behenic acid, as long as the object of the present invention is not impaired. Higher fatty acids such as behenyl alcohol, glyceryl trioctadecanoate, glyceryl tribehenate, solid castor oil such as hardened castor oil, powder, oil gelling agent, moisturizer, plant extract, vitamins, antioxidant, prevention Fungicides, ultraviolet absorbers, anti-inflammatory agents, insect repellents, physiologically active ingredients, fragrances and the like can be blended.

  The dosage form of the solid cleansing cosmetic of the present invention is a cleansing cosmetic that does not flow at normal temperature (25 ° C.) and normal pressure (1 atm), and its shape is cast into a rod, plate, or container. Although there can be mentioned, etc., there is no particular limitation. Oiliness means that the cosmetic substantially does not contain water, and the water content is preferably less than 3% by mass, more preferably less than 1% by mass with respect to the total amount of the cosmetic. is there.

EXAMPLES Hereinafter, although an Example and a comparative example are given and this invention is demonstrated further more concretely, this invention is not restrict | limited to the following Example. In addition, the quantity of each component is mass%.
Further, Example 7 is a reference example and is not included in the scope of claims.

Examples 1-10 and Comparative Examples 1-7
Solid cleansing cosmetics having the compositions shown in Table 1 below were prepared. The following evaluations were performed with respect to the ease of familiarization with makeup cosmetics, the ease of sagging, the removal of dirt, the feeling of use (the presence or absence of coating stimulation, the good refreshing feeling after washing) and the stability. The results are shown in Table 1.

(Ease of familiarity with makeup cosmetics)
(1) Sensory test Using 20 panelists, using the cleansing cosmetics shown in the examples and comparative examples, "Ease of familiarity with makeup cosmetics""sagging""stainremoval""massage" Sensory evaluation was made on “feeling of friction” and “feeling of freshness after washing”. The evaluation criteria are as follows.
<Evaluation criteria>
◎: Very good [more than 15 subjects answered good]
○: Good [10 or more and less than 15 subjects answered good]
Δ: Slightly bad [5 or more and less than 10 subjects answered good]
×: Bad [Less than 5 subjects answered good]

(2) Formability test The cleansing cosmetics of Examples and Comparative Examples were placed in a 100 g plastic jar and allowed to stand, and evaluation was performed according to the following criteria by visual judgment after 6 hours.
<Evaluation criteria>
◎: No surface irregularities and no noticeable scratches ○: No irregularities on the surface, cracks are seen on the sides △: Some irregularities are seen on the surface ×: Obvious irregularities are seen on the surface

(3) Storage stability test The cleansing cosmetics of Examples and Comparative Examples were sealed in 100 g plastic jars, stored in a reciprocating thermostat (5 ° C to 35 ° C cycle thermostat) for 2 months, and then visually The evaluation was made according to the following criteria based on the judgment and actual use.
<Evaluation criteria>
A: No change in appearance, no change in fragrance or usability.
○: There is almost no change in appearance, and there is a slight change in scent and usability.
(Triangle | delta): Sweating etc. are recognized slightly and a change is felt in fragrance and usability.
X: Sweating etc. are clearly recognized, and a clear change in scent and usability is felt.

(Production method)
A. Components (1) to (3) in Table 1 are mixed and dissolved at 95 to 100 ° C.
B. A was poured into a container and cooled and solidified to obtain a solid oily cleansing cosmetic.

  As is clear from Table 1, all the examples in which the essential components of the present invention were blended showed excellent performance. On the other hand, the cleansing cosmetic composition of the comparative example lacking even one essential component of the present invention was inferior in any respect and could not achieve the object of the present invention.

  Below, the formulation example of this invention is shown. All are solid oil-based cleansing cosmetics that can be expected to have excellent effects on usability, moldability, and storage stability.

Formulation Example 1 Compounding amount (A) Paraffin wax 4.0
Synthetic wax 2.0
Microcrystalline wax 3.0
(B) Hydrogenated polydecene 25.0
Tri (capryl / capric acid) glycerin 30.0
Ethylhexyl palmitate remainder diphenylsiloxyphenyl trimethicone 5.0
Jojoba oil 0.2
Carrot oil 0.2
Macadamia nut oil 0.2
(C) PEG-20 glyceryl triisostearate (HLB8.0) 10.0
Ethyl hexyl methoxycinnamate Appropriate amount Perfume Appropriate amount

Formulation Example 2 Compounding amount (A) Ceresin wax 5.0
Paraffin wax 5.0
(B) Liquid paraffin 20.0
Isodecyl isononanoate 25.0
Tri (capryl / capric acid) glycerin remainder (C) polyglyceryl caprate (HLB9.5) 11.0
Dimethoxybenzylidenedioxoimidazolidine octyl propionate appropriate amount Ethylhexyl methoxycinnamate appropriate amount Tocopherol appropriate amount Dye appropriate amount Fragrance appropriate amount

  Table 3 shows the composition of the fragrance in the above formulation example.

Claims (8)

A solid oil-based cleansing cosmetic containing the following components (A) to (C).
(A) Hydrocarbon oil having a melting point of 60 to 120 ° C. 5 to 15% by mass in the total amount of the cosmetic
(B) The ester oil is contained in an amount of 45 to 90% by mass based on the total amount of the liquid oil , and the ester oil is composed of a monovalent higher fatty acid having 8 to 20 carbon atoms and a monohydric alcohol having 2 to 20 carbon atoms. Liquid oil (C) HLB value containing one or two or more selected from ester oil and triester oil of linear fatty acid having 8 to 12 carbon atoms and glycerol with respect to the total amount of ester oil 5 to 13 nonionic surfactant 5 to 30% by mass in the total amount of the cosmetic   The solid oil-based cleansing cosmetic according to claim 1, wherein the content ratio (B / A) of the component (A) and the component (B) in the composition is 4 to 18. The ester oil in the component (B) is an ester oil of a monovalent higher fatty acid having 8 to 20 carbon atoms and a monohydric alcohol having 2 to 20 carbon atoms and a straight chain having 8 to 12 carbon atoms, based on the total amount of the ester oil. The solid oil-based cleansing cosmetic according to claim 1 or 2, comprising 90% by mass or more of one or more selected from a triester oil of a chain fatty acid and glycerin. (B) The ester oil in the component is (B1) an ester oil of a monovalent higher fatty acid having 8 to 20 carbon atoms and a monohydric alcohol having 2 to 20 carbon atoms , and (B2) a straight oil having 8 to 12 carbon atoms. The solid oil-based cleansing according to any one of claims 1 to 3 , comprising a triester oil of a chain fatty acid and glycerin, wherein the mass ratio of (B1) and (B2) is 2: 1 to 1: 2. Cosmetics. (B) The ester oil in the component is one or more selected from isopropyl palmitate, ethyl hexyl palmitate, ethyl hexyl isopalmitate, glyceryl tricaprate, glyceryl tricaprylate, and glyceryl tri (caprylate). The solid oil-based cleansing cosmetic according to any one of claims 1 to 3. (B) The ester oil in the component is (B1) one or more selected from isopropyl palmitate, ethylhexyl palmitate and ethylhexyl isopalmitate, and (B2) glyceryl tricaprate, glyceryl tricaprylate and tri ( The solid oil-based cleansing cosmetic composition according to claim 4, comprising one or more selected from glyceryl (capryle-caprin) acid.   The solid oil-based cleansing cosmetic according to any one of claims 1 to 6, wherein the component (C) is a nonionic surfactant having an HLB value of 7 to 12.5.   (A) A component is a hydrocarbon oil whose melting | fusing point is 70-110 degreeC, The solid oil-based cleansing cosmetics of any one of Claims 1-7.