JP7139287B2 - Solid oily cleansing cosmetic - Google Patents

Description

TECHNICAL FIELD The present invention relates to solid oily cleansing cosmetics.

Oily liquid cleansing compositions are on the market for the purpose of removing skin stains and oily make-up cosmetics. Oil-based liquid cleansing compositions are superior in cleansing effect to emulsified cream-type, emulsion-type cleansing compositions, or aqueous liquid/gel-type cleansing compositions. However, since oil cleansing agents are composed of oily ingredients, their viscosity depends on the oil agents they contain, and when they are picked up on the hands or applied to the skin, they tend to drip off, resulting in poor usability during cleansing. was there.

Therefore, in Patent Document 1, there is no dripping of the cleansing cosmetic, and it is a solid oil-based cleansing cosmetic that has less burden on the skin due to rubbing, but has good compatibility with makeup cosmetics and is excellent in stain removal. A solid oil-based cleansing cosmetic that provides an excellent refreshing feeling after washing contains 5 to 15% by mass of a hydrocarbon oil having a melting point of 60 to 120° C. in the total amount of the cosmetic, and 35% by mass of an ester oil in the total amount of the liquid oil. A solid oily cleansing cosmetic containing 5 to 30% by mass of a liquid oil containing 5% by mass or more and a nonionic surfactant having an HLB value of 5 to 13 in the total amount of the cosmetic is disclosed.

JP 2012-206974 A

However, in the cleansing cosmetic containing a large amount of hydrocarbon wax as shown in Patent Document 1, when filled in a jar container, it is too hard to be removed with fingers, and if it is too soft, it will spill from the fingers. I had the above problem. Therefore, the present invention is a solid oily cleansing cosmetic that has good usability and less burden on the skin due to rubbing, but has good compatibility with makeup cosmetics, is excellent in removing dirt, and after washing. To provide a solid oily cleansing cosmetic excellent in no dry feeling.

A solid oily cleansing cosmetic containing (A) to (C).
(A) 1 or 2 or more selected from nonionic surfactants (B) 1 or 2 or more selected from hydrocarbons having a melting point of 40 to 120° C. (C) Hydrogenated palm kernel oil

The solid oily cleansing cosmetic of the present invention has good usability, less burden on the skin due to rubbing, good compatibility with makeup cosmetics, excellent dirt removal, and a dry feeling after washing. It exerts the effect of being excellent in lack.

A mode for carrying out the present invention will be described below.

The solid oily cleansing cosmetic of the present invention can be used for any application such as cosmetics, quasi-drugs, and pharmaceuticals.

(A) A nonionic surfactant is used in the present invention. The nonionic surfactant is not particularly limited in kind, but has an HLB value of 5 or more, further an HLB value of 7 or more, and an HLB value of 20 or less, further an HLB value of 17 or less. is preferable from the point of lack of dry feeling after washing in cleansing. Examples of such nonionic surfactants include polyglycerin fatty acid esters, fatty acid polyoxyethylene glyceryl fatty acids, sorbitan fatty acid esters, polyoxyethylene alkyl ethers, and the like. Here, the HLB (Hydrophile-Lipophile Balance) value is generally a value indicating the affinity of nonionic surfactants for water and oil, and can be determined by the Griffin method.

Examples of polyglycerol fatty acid esters include polyglyceryl-10 isostearate (HLB value: 14), polyglyceryl-2 isostearate (HLB value: 5), polyglyceryl-4 isostearate (HLB value: 8), polyglyceryl-6 isostearate (HLB value: 11), polyglyceryl oleate-10 (HLB value: 13), polyglyceryl oleate-2 (HLB value: 6), polyglyceryl oleate-4 (HLB value: 9), polyglyceryl oleate-6 (HLB value: 12), polyglyceryl-2 caprylate (HLB value: 8), polyglyceryl-6 caprylate (HLB value: 10), polyglyceryl diisostearate-10 (HLB value: 11), polyglyceryl dioleate-10 (HLB value: 12) , Polyglyceryl-6 dicaprate (HLB value: 10), Polyglyceryl-10 distearate (HLB value: 12), Polyglyceryl-10 stearate (HLB value: 14), Polyglyceryl-2 stearate (HLB value: 5), Stearic acid Polyglyceryl-4 (HLB value: 6), polyglyceryl-2 sesquicaprylate (HLB value: 8), polyglyceryl-10 tristearate (HLB value: 8), polyglyceryl myristate-10 (HLB value: 15), lauric acid Polyglyceryl-4 (HLB value: 10), polyglyceryl-6 laurate (HLB value: 14), polyglyceryl-10 laurate (HLB value: 14.8) and the like.

Examples of fatty acid polyoxyethylene glyceryl include PEG-5 glyceryl stearate (HLB value: 8), PEG-10 glyceryl stearate (HLB value: 11), PEG-15 glyceryl stearate (HLB value: 13), PEG stearate -20 glyceryl (HLB value: 14), PEG-30 glyceryl stearate (HLB value: 15), PEG-40 glyceryl stearate (HLB value: 16), PEG-3 glyceryl isostearate (HLB value: 6), Isostearin PEG-5 glyceryl acid (HLB value: 8), PEG-6 glyceryl isostearate (HLB value: 8), PEG-8 glyceryl isostearate (HLB value: 10), PEG-10 glyceryl isostearate (HLB value: 10) , PEG-15 glyceryl isostearate (HLB value: 12), PEG-20 glyceryl isostearate (HLB value: 13), PEG-25 glyceryl isostearate (HLB value: 14), PEG-30 glyceryl isostearate (HLB value: 15), PEG-40 glyceryl isostearate (HLB value: 15), PEG-50 glyceryl isostearate (HLB value: 16), PEG-60 glyceryl isostearate (HLB value: 16), PEG-10 glyceryl diisostearate (HLB value: 7), PEG-20 glyceryl diisostearate (HLB value: 10), PEG-30 glyceryl diisostearate (HLB value: 12), PEG-60 glyceryl diisostearate (HLB value: 14), PEG-10 glyceryl tristearate (HLB value: 14) HLB value: 5), PEG-15 glyceryl tristearate (HLB value: 7), PEG-20 glyceryl tristearate (HLB value: 8), PEG-20 glyceryl trioleate (HLB value: 8), triolein PEG-30 glyceryl acid (HLB value: 10), PEG-40 glyceryl trioleate (HLB value: 11), PEG-50 glyceryl trioleate (HLB value: 12), PEG-60 glyceryl trioleate (HLB value : 13), PEG-10 glyceryl triisostearate (HLB value: 5), PEG-15 glyceryl triisostearate (HLB value: 7), PEG-20 glyceryl triisostearate (HLB value: 8), PEG triisostearate -30 glyceryl (HLB value: 10), PEG triisostearate -40 glyceryl (HLB value: 11), PEG-50 glyceryl triisostearate (HLB value: 12), PEG-60 glyceryl triisostearate (HLB value: 13), PEG-9 glyceryl laurate (HLB value: 12) etc.

Examples of sorbitan fatty acid esters include sorbitan isostearate (HLB value: 8), sorbitan olive oil fatty acid (HLB value: 9), sorbitan oleate (HLB value: 9), sorbitan stearate (HLB value: 8), and sorbitan sesquiisostearate. (HLB value: 6), sorbitan sesquioleate (HLB value: 6), sorbitan palmitate (HLB value: 7), sorbitan coconut fatty acid (HLB value: 11), sorbitan laurate (HLB value: 9), etc. be done.

Examples of polyoxyethylene alkyl ethers include ceteth-2 (HLB value: 5), ceteth-3 (HLB value: 6), ceteth-4 (HLB value: 7), ceteth-5 (HLB), which are polyoxyethylene cetyl ethers. Value: 8), Ceteth-7 (HLB value: 10), Ceteth-10 (HLB value: 11), Ceteth-12 (HLB value: 12), Ceteth-15 (HLB value: 13), Ceteth-17 (HLB value: 13), ceteth-20 (HLB value: 14), ceteth-25 (HLB value: 15), ceteth-30 (HLB value: 15), polyoxyethylene stearyl ether, steareth-3 (HLB value: 6), Steareth-5 (HLB value: 8), Steareth-6 (HLB value: 8), Steareth-8 (HLB value: 9), Steareth-10 (HLB value: 11), Steareth-11 (HLB value: 11), Steareth-12 (HLB value: 11), Steareth-15 (HLB value: 12), Steareth-20 (HLB value: 13), Steareth-25 (HLB value: 14), Steareth-30 (HLB value: 15), steareth-40 (HLB value: 16), polyoxyethylene lauryl ether laureth-3 (HLB value: 8), laureth-5 (HLB value: 10), laureth-7 (HLB value: 11), Laureth-9 (HLB value: 12), Laureth-10 (HLB value: 12), Laureth-12 (HLB value: 13), Laureth-15 (HLB value: 14), Laureth-20 (HLB value: 15), Laureth-25 (HLB value: 15), laureth-30 (HLB value: 16), laureth-50 (HLB value: 17), polyoxyethylene behenyl ether beheneth-5 (HLB value: 7), beheneth-10 (HLB value: 9), beheneth-20 (HLB value: 12), beheneth-30 (HLB value: 14), PEG-5 phytosterol (HLB value: 7), which is a polyoxyethylene phytosteryl ether, PEG-10 phytosterol (HLB value: 9), PEG-20 phytosterol (HLB value: 12), PEG-25 phytosterol (HLB value: 13), PEG-30 phytosterol (HLB value: 14), Choleth-5 which is a polyoxyethylene cholesteryl ether (HLB value: 7), Choleth-10 (HLB value: 10), Choleth-15 (HLB value: 11), Choleth-20 (HLB value: 12), Choleth-24 (HLB value: 13), Choleth-30 (HLB value: 14), po Isoceteth-5 (HLB value: 8), Isoceteth-10 (HLB value: 11), Isoceteth-15 (HLB value: 13), Isoceteth-20 (HLB value: 14), Isoceteth-, which are trioxyethylene isoalcohol ethers 25 (HLB value: 15), isosteareth-5 (HLB value: 8), isosteareth-10 (HLB value: 11), isosteareth-15 (HLB value: 12), isosteareth-20 (HLB value: 13), isosteareth- 25 (HLB value: 14), octyldodeceth-5 (HLB value: 7), octyldodeceth-10 (HLB value: 10), octyldodeceth-16 (HLB value: 12), octyldodeceth-20 (HLB value: 13), octyldodeceth- 25 (HLB value: 14) and the like.

In the present invention, among these nonionic surfactants, it is preferable to use one or more selected from polyglycerin fatty acid esters and fatty acid polyoxyethylene glyceryls. Combined use of oxyethylene glyceryl is preferred from the viewpoints of compatibility with make-up cosmetics, stain removal, and lack of dryness after washing.

In the present invention, the content of component (A) is 8 to 40% by mass, preferably 10 to 35% by mass, more preferably 12 to 30% by mass, based on the total amount of the solid oily cleansing cosmetic composition of the present invention. If the content is less than 8% by mass, it may not be possible to remove stains and provide no feeling of dryness after washing. If the amount exceeds 40% by mass, the nonionic surfactant may cause stickiness.

In the present invention, (B) one or more selected from hydrocarbons having a melting point of 40 to 120° C. is used. Specific examples include paraffin wax, microcrystalline wax, synthetic wax, Fischer-Tropsch wax, ozokerite, ceresin, polyethylene wax, and ethylene/propylene copolymer. These can be used individually by 1 type or in combination of 2 or more types.

The content of component (B) is preferably 3 to 20% by mass, more preferably 5 to 15% by mass, based on the total amount of the solid oily cleansing cosmetic composition of the present invention. If the content is less than 3% by mass, it may not be possible to maintain a solid shape. If the content exceeds 20% by mass, the feeling of use and the ease of removal may deteriorate.

(C) Hydrogenated palm kernel oil is used in the present invention. The use of hydrogenated palm kernel oil improves the stability over time, the feeling of use, and the ease of removal.

The content of component (C) is preferably 0.1 to 20% by mass in the total amount of the solid oily cleansing cosmetic of the present invention, and more preferably 1 to 10% by mass. It is preferable from the viewpoint of feeling.

It is preferable to further blend component (D) a dialkyl ester and/or dialkyl ether having 6 to 12 carbon atoms in the solid oily cosmetic composition of the present invention. The cleansing power can be improved by blending the component (D). A specific example of component (D) is dicaprylyl carbonate.

The solid oil-based cleansing cosmetic composition of the present invention may contain an ester oil other than the component (D). Such oil is not particularly limited as long as it can be usually blended in cosmetics. Specifically, jojoba oil, cetyl 2-ethylhexanoate, tri(caprylic/capric) glyceryl, isononyl isononanoate, isotridecyl isononanoate, isopropyl myristate, Isopropyl palmitate, 2-ethylhexyl palmitate, octyldodecyl myristate, isotridecyl isononanoate, ethyl oleate, glyceryl tri-2-ethylhexanoate, propylene glycol dicaprate, neopentyl glycol dicaprate, polyglyceryl-2 triisostearate, tribehene Glyceryl acid, diisostearyl malate, ethylhexyldimethyl p-aminobenzoate, ethylhexyl salicylate, ethylhexyl methoxycinnamate, tocopheryl acetate, olive oil, castor oil, mink oil, macadamia nut oil, meadowfoam oil, rosehip oil, Examples include rice bran oil, avocado oil, palm kernel oil, palm oil, dipentaerythyryl tripolyhydroxystearate, and the like.

From the viewpoint of stability, it is preferred that the solid oil-based cleansing cosmetic composition of the present invention does not substantially contain liquid oils other than ester oils.

In addition to the essential ingredients described above, the solid oil-based cleansing cosmetic composition of the present invention may contain optional components used in ordinary cosmetics and quasi-drugs, as long as they do not impair the purpose of the present invention. It can be blended to the extent that it does not. Specific examples include oily components, surfactants, thickeners, preservatives, fragrances, moisturizing agents, antioxidants, anti-inflammatory agents, antibacterial agents, and the like.

The dosage form of the solid oily 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 not particularly limited, but it is cast into a container. In addition to those having a shape, it may be rod-shaped or plate-shaped.

1 shows an example of a solid oily cleansing cosmetic of the present invention. The embodiment is merely an example of the present invention, and the present invention is not limited thereto. In addition, the compounding quantity is shown by the mass % unless there is a notice.

Examples of the present invention and evaluation methods for comparative examples are shown.

[sensory evaluation]
Using the prepared solid oil-based cleansing cosmetic filled in a jar container, "balance between hardness and finger rubbing", "less burden on the skin due to rubbing", and "compatibility with makeup cosmetics". , “stain removal”, and “no feeling of dryness after cleansing” were evaluated independently by three sensory evaluators specializing in skin care according to the standard method, and evaluated according to the following evaluation criteria.
◎: Excellent ○: Excellent △: Not so good ×: Not good

[Stability evaluation]
The prepared solid oily cleansing cosmetic was filled in a jar container, stored in a constant temperature bath with a cycle of 5 ° C. for 12 hours and 40 ° C. for 12 hours for 10 cycles, and then evaluated by visual judgment and actual use according to the following criteria. .
⊚: No change in appearance and no change in usability.
◯: Almost no change in appearance, slight change in usability.
Δ: Slight perspiration or the like is observed, and a change in usability is felt.
x: Perspiration and the like are clearly observed, and a clear change in usability is felt.

Based on the description in Table 1, a solid oil-based cleansing cosmetic was prepared by a conventional method and subjected to evaluation. The results are also shown in Table 1.

The solid oily cleansing cosmetics according to the examples of the present invention gave good results in all evaluation items. In particular, Examples 2 and 3 containing caprylyl carbonate, which is a dialkyl ester having 6 to 12 carbon atoms, exhibited extremely excellent cleansing performance. On the other hand, Comparative Example 1, in which no hydrogenated palm kernel oil was blended, had poor usability and did not yield very good results in terms of stability.

Claims (1)

A solid oily cleansing cosmetic containing (A) to ( D ).
(A) 1 or 2 or more selected from nonionic surfactants (B) 1 or 2 or more selected from hydrocarbons having a melting point of 40 to 120°C (C) Hydrogenated palm kernel oil
(D) a dialkyl ester and/or dialkyl ether having 6 to 12 carbon atoms