JP7809326B2 - Balm-type cosmetics - Google Patents

Description

The present invention relates to a balm-type cosmetic preparation.

Cosmetics (cleansing agents) used to remove sebum and makeup come in a variety of forms, including oils, lotions, gels, milks, creams, and balms.
Among these, balm-type cosmetics are widely used because they are highly oily and can remove heavy makeup such as oily foundation and sunscreen.

Balm-type cosmetics generally provide excellent cleansing properties, but can sometimes leave a sticky feeling after cleansing. Various balm-type cosmetics (solid cosmetics) have been developed to solve this problem (for example, Patent Document 1).

JP 2012-206974 A

However, conventional balm-type cosmetics are difficult to adjust the hardness and maintain stability, and are prone to liquefaction when subjected to repeated kneading or other shearing, making it difficult to produce products filled in tubes. Furthermore, depending on the type of nonionic surfactant, there is also the issue of reduced rinsability after application to the skin.
Therefore, an object of the present invention is to provide a balm-type cosmetic preparation that is easy to remove from a tube even when filled in the tube, does not liquefy when subjected to shear such as repeated kneading, has good storage stability, and is easy to rinse off after application to the skin.

The balm-like cosmetic according to the present invention comprises a hydrocarbon wax that is solid at room temperature,
A polyol,
a nonionic surfactant having an HLB of 8 or more;
The content of the hydrocarbon wax is 5 to 25% by mass,
The content of the polyol is 3 to 50% by mass,
The water content is less than 1% by mass,
It is a cleansing agent .

The present invention provides a balm-type cosmetic that is easy to remove from a tube even when filled, does not liquefy when subjected to repeated shearing such as kneading, has good storage stability, and is easy to rinse off after application to the skin.

Preferred embodiments of the balm-type cosmetic of the present invention will be described in detail below.
The balm-like cosmetic preparation of the present invention is preferably used as a cleansing agent.
Furthermore, the balm-like cosmetic preparation of the present invention is preferably filled in a tube before use.
Specifically, the balm-like cosmetic of the present invention contains a predetermined amount of a hydrocarbon wax that is solid at room temperature, a polyol, and a nonionic surfactant with an HLB of 8 or more, and further contains less than 1% by mass of water.
By having these characteristics, it is possible to provide a balm-type cosmetic preparation that is easy to remove from the tube even when filled in the tube, does not liquefy when subjected to shear such as repeated kneading, has good storage stability, and is easy to rinse off after application to the skin.

<Hydrocarbon wax>
The balm-like cosmetic of the present invention contains 5 to 25% by mass of a hydrocarbon wax that is solid at room temperature, where room temperature refers to a temperature of 15 to 25°C.
By including a predetermined amount of such hydrocarbon wax, the balm-like properties can be well maintained even when repeatedly kneaded or otherwise sheared, and unwanted dripping can be prevented. Furthermore, when filled into a tube, the product can be easily removed from the tube.
The term "balm-like" refers to a solid or semi-solid state, and refers to a state of hardness that does not drip even when the container is turned upside down.
Furthermore, the balm-type cosmetic of the present invention can be made into various forms, such as a cream or paste.

The content of the hydrocarbon wax in the present invention is 5 to 25% by mass, preferably 7 to 23% by mass, and more preferably 10 to 20% by mass.
Examples of hydrocarbon waxes include paraffin waxes such as polyethylene wax and polypropylene wax, and microcrystalline waxes. One or more of these may be used in combination. Among these, polyethylene wax and/or microcrystalline wax are preferred. This allows the balm-like properties to be better maintained even when repeatedly kneaded or otherwise sheared, and more effectively prevents unwanted dripping. Furthermore, this also allows for easier removal from the tube when filled into the tube.
The melting point of the hydrocarbon wax is preferably 50 to 110°C, more preferably 55 to 105°C, and even more preferably 60 to 100°C. This allows the balm-like properties to be maintained even better even when repeatedly kneaded or otherwise sheared. Furthermore, when filled into a tube, the wax can be more easily removed from the tube.

<Polyol>
The balm-like cosmetic of the present invention contains 3 to 50% by mass of a polyol.
By including a predetermined amount of polyol, it is possible to improve the storage stability and also improve the ease of removal from the tube when filled in the tube.
Examples of polyols include ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, isopropylene glycol, 1,3-butylene glycol, 1,4-butylene glycol, neopentyl glycol, 3-methyl-1,5-pentanediol, 2-butyl-2-ethyl-1,3-propanediol, 2,4-diethyl-1,5-pentanediol, 1,2-hexanediol, 1,6-hexanediol, 1,8-octanediol, 1,9-nonanediol, 2-methyl-1,8-octanediol, 1,8-decanediol, octadecanediol, glycerin, diglycerin, polyglycerin, trimethylolpropane, pentaerythritol, hexanetriol, and polypropylene glycol. These may be used alone or in combination of two or more. Among these, it is preferable to use at least one selected from the group consisting of glycerin, 1,3-butylene glycol, dipropylene glycol, and propylene glycol, which can improve storage stability and facilitate removal from the tube when filled in the tube.
The content of the polyol in the present invention is 3 to 50% by mass, preferably 5 to 30% by mass, and more preferably 7 to 25% by mass.

<Nonionic surfactant>
The balm-like cosmetic preparation of the present invention contains a nonionic surfactant with an HLB of 8 or more.
The inclusion of such a nonionic surfactant can improve the storage stability of the formulation, as well as the ease of removal from the tube when filled in the tube, and can also prevent the formulation from liquefying when subjected to repeated shearing such as kneading.
The HLB of the nonionic surfactant used in the present invention is 8 or more, preferably 8 to 19, and more preferably 10 to 15. This improves the storage stability of the formulation and also improves the ease of removal from the tube when filled in the tube.

Examples of nonionic surfactants with an HLB of 8 or more include polyoxyethylene glyceryl triisostearate, glycerin fatty acid esters, polyoxyethylene glyceryl isostearate, and polyoxyethylene sorbitol tetraoleate, and one or more of these can be used in combination. Among these, it is preferable to use polyoxyethylene glyceryl triisostearate. This can further improve the storage stability of the formulation and also improve the ease of removal from the tube when filled into the tube.
The content of the nonionic surfactant is not particularly limited, but is preferably 5 to 30% by mass, more preferably 10 to 20% by mass, and particularly preferably 12 to 18% by mass.

<Water>
The balm-type cosmetic preparation of the present invention has a water content of less than 1%. By reducing the water content in this way, the storage stability of the preparation can be improved.
The water content is less than 1% by mass, preferably less than 0.5% by mass, more preferably less than 0.1% by mass, and even more preferably no water.

Furthermore, when the amount of the above-mentioned hydrocarbon wax is taken as 1 part by mass, the content of polyol is preferably 1/10 parts by mass or more and 25/3 parts by mass or less, more preferably 7/30 parts by mass or more and 23/5 parts by mass or less, and even more preferably 2/5 parts by mass or more and 20/7 parts by mass or less.

<Other ingredients>
In addition to the above-mentioned ingredients, the balm-type cosmetic of the present invention can also contain ingredients that are commonly used depending on the purpose and dosage form.
Examples of such components include hyaluronic acid, hyaluronate, antioxidant, mineral or synthetic oil that is liquid at room temperature, animal or vegetable oil, wax, fatty acid, alcohol, polymer compound, animal or vegetable extract, amino acid, solvent, anti-inflammatory agent, preservative, UV inhibitor, sequestering agent, antioxidant, pH adjuster, coloring matter, pigment, fragrance, etc., and can be blended within the range that does not impair the effect of the present invention.The following are specific examples of these components:

(Antioxidant)
Examples of antioxidants include vitamin E and its derivatives (tocopherols and derivatives thereof such as dl-α(β, γ)-tocopherol, dl-α-tocopherol acetate, dl-α-tocopherol nicotinate, dl-α-tocopherol linoleate, and dl-α-tocopherol succinate, and ubiquinones), vitamin A and its derivatives (retinol and derivatives thereof such as retinol palmitate and retinol acetate, and retinal and derivatives thereof such as dehydroretinal), carotenoids (carotene, lycopene, astaxanthin, etc.), and vitamin B and its derivatives (thiamine hydrochloride, thiamine sulfate, riboflavin, riboflavin acetate, pyridoxine hydrochloride, pyridoxine dioctanoate, flavin adenine dinucleotide, cyanocobalamin, folic acids, nicotinic acids such as benzyl nicotinate, cholines, etc.), vitamin C and derivatives thereof (L-ascorbic acid alkyl esters such as L-ascorbyl dipalmitate and L-ascorbyl tetraisopalmitate, L-ascorbic acid phosphate, L-ascorbic acid sulfate, etc.), vitamin D and derivatives thereof (ergocalciferol, cholecalciferol, dihydroxystannal, etc.), rutin and derivatives thereof, thiotaurine, taurine, hydroquinone and derivatives thereof, histidine, catechin and derivatives thereof, glabridin, glabrene, liquiritin, isoliquiritin, and licorice extracts containing these.

(Mineral and synthetic oils that are liquid at room temperature)
Examples of mineral and synthetic oils include liquid paraffin, liquid isoparaffin, petrolatum, ceresin, α-olefin oligomer, polybutene, and synthetic squalane, and one or more of these can be used in combination.

(animal and vegetable oil)
Examples of animal and vegetable oils include squalane, olive oil, camellia oil, wheat germ oil, jojoba oil, avocado oil, carrot oil, shea butter, liquid shea butter, palm oil, palm kernel oil, hardened oil, horse oil, lanolin, egg yolk oil, clove oil, rosehip oil, lavender oil, peppermint oil, spearmint oil, rosemary oil, macadamia nut oil, apricot kernel oil, safflower oil, safflower oil (2), sunflower oil, sunflower oil (2), meadowfoam oil, almond oil, perilla oil, sesame oil, borage oil, cocoa butter, rice bran oil, rice germ oil, and fennel. Examples of suitable oils include citric acid, citric acid, citric acid, citric acid esters ...

It is preferable to add a liquid vegetable oil to the balm-type cosmetic of the present invention, as this can improve the feel of the balm-type cosmetic when used.
The content of the liquid vegetable oil is preferably 30% by mass or more, more preferably 35% by mass or more, and is preferably 65% by mass or less, more preferably 60% by mass or less.

(Waxes)
Examples of waxes include jojoba oil, beeswax, carnauba wax, rice bran wax, spermaceti, lanolin, liquid lanolin, reduced lanolin, hard lanolin, candelilla wax, montan wax, shellac, and orange roughy oil, and one or more of these may be used in combination.

(fatty acid)
Examples of fatty acids include natural fatty acids such as lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, isostearic acid, behenic acid, linoleic acid, linolenic acid, docosahexaenoic acid, eicosapentaenoic acid, 12-hydroxystearic acid, undecylenic acid, and lanolin fatty acid; and synthetic fatty acids such as isononanoic acid, caproic acid, 2-ethylbutanoic acid, isopentanoic acid, 2-methylpentanoic acid, and isopentanoic acid. These may be used alone or in combination of two or more.

(alcohol)
Examples of alcohols include ethanol, isopropanol, butyl alcohol, benzyl alcohol, lauryl alcohol, myristyl alcohol, cetanol, cetostearyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, hexyldecanol, behenyl alcohol, octyldodecanol, lanolin alcohol, cholesterol, phytosterol, 2-hexyldecanol, 2-octyldodecanol, and batyl alcohol, and these may be used alone or in combination of two or more.

(polymer compound)
Examples of polymer compounds include sodium alginate, carrageenan, agar, furcellaran, guar gum, quince seed, konjac mannan, tamarind gum, tara gum, dextrin, starch, locust bean gum, gum arabic, ghatti gum, karaya gum, tragacanth gum, arabinogalactan, pectin, quince, wheat protein, soy protein, albumin, casein, gelatin, chitosan, hyaluronic acid, curdlan, xanthan gum, gellan gum, cyclodextrin, dextran, pullulan, crystalline cellulose, Examples of the cellulose include cellulose, methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose, carboxymethyl cellulose, cationized cellulose, cationized guar gum, hydroxypropylated guar gum, carboxyvinyl polymer, polyacrylic acid amide, sodium polyacrylate, polyethyleneimine, highly polymerized polyethylene glycol, polyvinyl alcohol, and polyvinylpyrrolidone, and these may be used alone or in combination of two or more.

(Animal and plant extracts)
Examples of animal and plant extracts include placenta extract, hydrolyzed keratin, hydrolyzed silk, yeast extract, aloe extract, comfrey extract, peony extract, perilla extract, sage extract, Swertia japonica extract, Hamamelis water, Japanese knotweed extract, hop extract, horse chestnut extract, peach leaf extract, saxifrage extract, melissa extract, mugwort extract, rosemary extract, and fermented rice bran extract, and these may be used alone or in combination of two or more.

(amino acids)
Examples of amino acids include L-alanine, L-arginine, L-aspartic acid, L-glutamine, L-asparagine, L-cysteine, L-serine, L-tyrosine, L-proline, pyrrolidone carboxylate, glycine, valine, leucine, isoleucine, threonine, methionine, phenylalanine, tryptophan, lysine, cystine, hydroxyproline, hydroxylysine, ornithine, histidine, γ-aminobutyric acid, and ε-aminocaproic acid, and these can be used alone or in combination of two or more.

(anti-inflammatory agent)
Examples of anti-inflammatory agents include glycyrrhizinic acid, dipotassium glycyrrhizinate, monoammonium glycyrrhizinate, glycyrrhetinic acid, stearyl glycyrrhetinate, guaiazulene, sodium guaiazulenesulfonate, allantoin, ε-aminocaproic acid, and tranexamic acid, and these may be used alone or in combination of two or more.

(preservatives)
Examples of preservatives include methylparaben, ethylparaben, propylparaben, butylparaben, isobutylparaben, phenoxyethanol, bisabolol, hinokitiol, benzoic acid, sodium benzoate, salicylic acid, sodium salicylate, sorbic acid, potassium sorbate, undecylenic acid, pionin, 1-menthol, d-camphor, isopropylmethylphenol, benzethonium chloride, alkyldiaminoethylglycine hydrochloride, ethylhexylglycerin, and the like, and these may be used alone or in combination of two or more.

(UV inhibitor)
Examples of ultraviolet protection agents include para-aminobenzoic acid, ethyl para-aminobenzoate, glyceryl para-aminobenzoate, 2-ethylhexyl para-dimethylaminobenzoate, oxybenzone, dihydroxybenzophenone, dihydroxydimethoxybenzophenone, sodium dihydroxydimethoxybenzophenone sulfonate, sodium hydroxymethoxybenzophenone sulfonate, octyl salicylate, 4-tert-butyl-4'-methoxy-dibenzoylmethane, ferulic acid, titanium oxide, fine particle titanium oxide, zinc oxide, fine particle zinc oxide, and the like, and these can be used alone or in combination of two or more.

(sequestering agent)
Examples of sequestering agents include edetic acid, edetate salts, trisodium ethylenediaminehydroxyethyltriacetate, diethylenetriaminepentaacetic acid, pentasodium diethylenetriaminepentaacetate, ethylenediaminetetrakis(2-hydroxyisopropyl)dioleate, hydroxyethanedisulfonic acid, tetrasodium hydroxyethanedisulfonate, and phytic acid, and these may be used alone or in combination of two or more.

(antioxidant)
Examples of antioxidants include dibutylhydroxytoluene, butylhydroxyanisole, erythorbic acid, propyl gallate, d-δ-tocopherol, and the like, and one or more of these can be used in combination.

(pH adjuster)
Examples of pH adjusters include citric acid, glycolic acid, malic acid, tartaric acid, lactic acid, succinic acid, phosphoric acid and salts thereof, and one or more of these may be used in combination.

(Pigment)
Examples of organic pigments include azo pigments and phthalocyanine pigments, and lakes may also be used. Examples of organic pigments include organic pigment powders such as Red No. 201, Red No. 202, Red No. 205, Red No. 226, Red No. 228, Orange No. 203, Orange No. 204, Blue No. 404, and Yellow No. 401, and zirconium, barium, or aluminum lakes such as Red No. 3, Red No. 104, Red No. 106, Orange No. 205, Yellow No. 4, Yellow No. 5, Green No. 3, and Blue No. 1. Examples of inorganic pigments include silicic anhydride, magnesium silicate, talc, kaolin, bentonite, mica, titanium mica, bismuth oxychloride, zirconium oxide, magnesium oxide, zinc oxide, titanium oxide, calcium carbonate, magnesium carbonate, yellow iron oxide, red iron oxide, black iron oxide, ultramarine, chromium oxide, chromium hydroxide, carbon black, calamine, cerium oxide, barium sulfate iron oxide, and Prussian blue.

Examples of the tube into which the balm-like cosmetic of the present invention is filled include an aluminum tube, a laminated tube, a glass-deposited tube, and a plastic tube.
Although the balm-type cosmetic preparation of the present invention has been described above, the present invention is not limited thereto.

Next, specific examples of the present invention will be described.
<Production of cleansing agent>
(Examples 1 to 13, Comparative Examples 1 to 9)
Using the ingredients and amounts shown in Tables 1 and 2, cleansing agents were prepared in a conventional manner and filled into tubes (laminated tubes).
In Tables 1 and 2, A to E respectively represent A: PEG-20 glyceryl triisostearate (HLB=10), B: PEG-60 glyceryl triisostearate (HLB=13), C: PEG-30 glyceryl isostearate (HLB=15), D: sorbitan isostearate (HLB=5), and E: PEG-5 glyceryl triisostearate (HLB=3).
The melting point of the polyethylene wax used was 80 to 90°C, and the melting point of the microcrystalline wax was 60 to 85°C.

<Evaluation>
[Ease of squeezing from the tube, shape retention, and rinsability after applying the formulation to the skin]
Five subjects were asked to use the cleansing agents of each Example and Comparative Example, and each subject gave a score on a five-point scale according to the following evaluation criteria for ease of squeezing out of the tube, shape retention, and rinsability after applying the preparation to the skin, and assigned a score to each sample. The average score of all the subjects' scores was then determined according to the following criteria.

(Evaluation criteria)
5 points: Very good 4 points: Good 3 points: Average 2 points: Slightly poor 1 point: Poor

(Judgment criteria (average score))
A: 4.5 or more B: 3.5 or more and less than 4.5 C: 2.5 or more and less than 3.5 D: Less than 2.5

[Stability after kneading the tube 10 times]
The tube of each cleansing agent of each Example and Comparative Example was kneaded 10 times on the day following production, and then the cleansing agent was ejected twice a day and evaluated according to the following criteria.
A: No change in hardness immediately after filling B: Hardness softens slightly immediately after filling C: Softens immediately after filling but does not liquefy D: Liquefaction occurs

[Storage stability at 40°C for 1 week]
On the day following the production of each cleansing agent of each Example and Comparative Example, each tube was placed in a thermostatic bath at 40°C, and after one week, it was taken out and the storage stability was evaluated according to the following criteria.
A: No change in properties immediately after filling B: Slight hardening or softening immediately after filling C: Significant hardening or softening immediately after filling, but properties are maintained D: Liquefaction or separation occurs

[comprehensive evaluation]
From the above evaluations, an overall evaluation was made according to the following criteria.
A: No D, 3 or more As B: No D, 2 As C: No D, 1 As or no As D: 1 or more As These results are shown in Tables 1 and 2.

As can be seen from Tables 1 and 2, the cleansing agents of the Examples were easy to dispense from the tube and had excellent storage stability. Furthermore, the cleansing agents of the Examples were prevented from liquefying even when rubbed, had excellent rinsing properties, and were excellent in overall evaluation. In contrast, the Comparative Examples were poor in overall evaluation, and unsatisfactory results were not obtained.

Claims (5)

a hydrocarbon wax that is solid at room temperature;
A polyol,
a nonionic surfactant having an HLB of 8 or more;
The content of the hydrocarbon wax is 5 to 25% by mass,
The content of the polyol is 3 to 50% by mass,
The water content is less than 1% by mass,
A balm-type cosmetic product that is a cleansing agent . The balm-type cosmetic preparation according to claim 1, wherein the content of the nonionic surfactant is 5 to 30% by mass. The balm-type cosmetic preparation according to claim 1 or 2, wherein the melting point of the hydrocarbon wax is 50 to 110°C. The balm-type cosmetic preparation according to any one of claims 1 to 3, wherein the polyol is at least one selected from the group consisting of glycerin, 1,3-butylene glycol, dipropylene glycol, and propylene glycol. The balm-like cosmetic preparation according to any one of claims 1 to 4 , which is packed in a tube.