JP2001172128A - Transparent solid cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transparent solid cosmetic having excellent transparency, stability, etc., compared with conventional cosmetics and giving a stick having high strength and excellent adhesivity and spreadability in use. SOLUTION: The transparent solid cosmetic contains (A) 12-hydroxystearic acid, (B) a special rosin ester and (C) at least one kind of ester selected from specific esters.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transparent solid cosmetic composition which is excellent in transparency and has various stability and feeling of use.

[0002]

2. Description of the Related Art As transparent solid cosmetics, for the last ten years,
Various proposals using dextrin fatty acid esters or 12-hydroxystearic acid as essential raw materials have been proposed.

[0003]

However, the conventional one is not satisfactory in transparency, stability and the like, and is liable to be broken as a stick, has poor adhesion to lips, and has a problem in usability. Therefore, an object of the present invention is to provide a transparent solid cosmetic which solves these problems.

[0004]

Means for Solving the Problems The inventor of the present invention has made intensive efforts to achieve the above object, and as a result of various studies, have completed the present invention. That is, the first of the present invention is the following (A) to
(C) a transparent solid cosmetic containing three components: (A) 12-hydroxystearic acid (B) special rosin ester (C) polyhydric alcohol fatty acid ester and ester composed of rosin, fatty acid and polyhydric alcohol At least one ester selected from the group consisting of: (2) a transparent solid cosmetic further comprising (D) an oil component according to the first of the present invention, and (3) a special rosin according to the above (B). The ester is the above-mentioned transparent solid cosmetic having a transmittance of 70% or more in a wavelength range of 700 to 400 nm, and a fourth aspect of the present invention is that the oil component (D) has a refractive index of 1.42 to 1.60. The above two types of transparent solid cosmetics. The transparent solid cosmetic composition of the present invention is more excellent in transparency and stability than conventional ones, is hard to be broken as a stick, has good sticking to lips, and has an excellent usability.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The components contained in the transparent solid cosmetic of the present invention will be described in detail below. First, (A) 12-hydroxystearic acid used in the present invention is a fatty acid obtained by catalytic reduction of ricinoleic acid contained in castor oil by 80 to 85% with hydrogen gas, and is a white hard and brittle wax. It is in the form of a solid and a commercially available product can be used. 12-Hydroxystearic acid is a solid agent for transparent solid cosmetics, and its gel has low stickiness (stickiness), good extensibility, excellent adhesion to skin and the like, and a change in hardness over a wide temperature range. Less and good transparency. Also,
The amount of this component in the present invention is preferably 0.5 to 25% by weight, more preferably 2 to 15% by weight, and even more preferably 3 to 10% by weight. If the amount is less than 2% by weight, it is difficult to solidify, and if it exceeds 15% by weight, the transparency is undesirably reduced.

Next, the special rosin ester (B) used in the present invention will be described. In the present invention, the special rosin ester refers to an ester obtained by esterifying at least one rosin selected from rosin, disproportionated rosin, hydrogenated rosin, and polymerized rosin with a polyhydric alcohol. Among the above-mentioned raw rosins, those having a disproportionated rosin and / or a hydrogenated rosin as a main component are particularly preferable in terms of transparency,
More preferably, one of the above-mentioned rosins has a main component of rosin, and the higher the ratio of the main component, the higher the transparency and the more preferable. Examples of the polyhydric alcohol for esterification include glycerin, diethylene glycol, propylene glycol, neopentyl glycol, pentaerythrit, and dipentaerythlit.
At least one of these polyhydric alcohols is esterified with the above-mentioned rosin, and polyhydric alcohols mainly containing a single polyhydric alcohol are more preferable than using many mixed polyhydric alcohols. The higher the ratio of the components, the higher the transparency, which is preferable. In particular, esters in which the polyhydric alcohol is glycerin and whose component ratio is high are most preferred in the present invention. Further, in the present invention, it is preferable to purify various rosins before esterification, whereby the transparency is further improved. Further, in the present invention, it is preferable to carry out a hydrogenation treatment after the esterification, whereby the transparency is further improved.

Although the chemical structural description of the (B) special rosin ester used in the present invention has been described above, the preferred (B) special rosin ester in the present invention is 700 to 400.
The transmittance is 70% or more in the wavelength range of nm, more preferably 96% or more in the above wavelength range, and still more preferably 98% or more in the above wavelength range.
That's all. If the transmittance is less than 70%, the transparent solid cosmetic of the present invention undesirably causes yellowing or turbidity. The blending amount of the special rosin ester (B) in the present invention is preferably 5 to 50% by weight, more preferably 20 to 40% by weight. If it is less than 5% by weight, the transparency is not sufficiently improved, and if it exceeds 50% by weight, the feeling of use of the transparent solid cosmetic of the present invention is inferior and is not preferred.

Next, (C) at least one ester selected from fatty acid esters of polyhydric alcohol and esters composed of rosin, fatty acid and polyhydric alcohol used in the present invention will be described. Polyhydric alcohols that are constituents refer to polyhydric alcohols that are dihydric or higher,
The following are examples, but the present invention is not limited thereto.

For example, dihydric alcohols include ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, polypropylene glycol, 1,3-propanediol, 3-butylene glycol, 1,2-butylene glycol, dibutylene glycol, tributylene glycol, polybutylene glycol, 1,4-butanediol, 1,6-hexanediol, 1,8-octanediol, neopentyl glycol, Trihydric alcohols such as glycerin, trimethylolethane, trimethylolpropane, and 1,2,6-hexanetriol; The alcohol may be mentioned pentaerythritol, diglycerol, triglycerol, tetraglycerol, hexaglycerol, polyglycerin, dipentaerythritol, polyvinyl alcohol, sorbitan, sorbitol, sugars and the like.

[0010] The fatty acid which is the other component is exemplified below, but is not limited thereto. For example, as a saturated linear fatty acid, caproic acid, caprylic acid, pelargonic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, etc.
As straight-chain monoene fatty acids, palmitoleic acid, oleic acid, erucic acid, etc., and as saturated branched fatty acids, 2-ethylbutanoic acid, 2-ethylhexanoic acid, 2-butyloctanoic acid, isotridecanoic acid, 2-hexyldecanoic acid,
Examples of hydroxy fatty acids include heptylundecanoic acid, isostearic acid such as isostearic acid having a methyl branch, and 2-decyltetradecanoic acid. Examples of hydroxy fatty acids include fatty acids such as 12-hydroxystearic acid, ricinoleic acid, and 9,10-dihydroxystearic acid. . Any of the components may be used in combination of two or more as necessary.

The rosin as the other component is at least one selected from ordinary rosin, hydrogenated rosin, disproportionated rosin and polymerized rosin. The ester composed of the rosin, the fatty acid and the polyhydric alcohol refers to an ester obtained by reacting the carboxyl group of the rosin and the fatty acid with the hydroxyl group of the polyhydric alcohol. Ethylene glycol rosin monocaproate, ethylene glycol mono-disproportionated rosin monocaprate, monohydrogenated rosin monomyristate ethylene glycol, monohydrogenated rosin monopalmitate ethylene glycol, monohydrogenated rosin monooleate ethylene glycol, mono Hydrogenated rosin ethylene glycol mono-2-ethylbutanoate, monohydrogenated rosin monoethylene glycol 2-ethylhexanoate, mono-disproportionated rosin triethylene glycol monooleate, monohydrogenated rosin monoethylene 2-ethylbutanoate triethylene glycol, monohydrogenated rosin Polyethylene glycol monoelsinate, propylene glycol mono-disproportionated rosin mono-2-ethylhexanoate, glycerol mono-disproportionated rosin mono-oleate, glycerol mono-mono-ethyl oleate 2-ethylhexanoate, dihydrogenated rosin monoisostearin Acid (methyl-branched) glycerol, monotetrahydroabietic acid monoisostearate glycerol mono 12-hydroxystearate, monodehydroabietic acid monolaurate glycerol monooleate, monohydrogenated rosin monoerucinate diglycerin, didehydroabietic acid diricinoleate Diglycerin, di-disproportionated rosin mono 2-heptylundecanoic acid trimethylolpropane, dihydrogenated rosin diisostearate (methyl branched) pentaerythritol, dihydrogenated Jin diisostearate mono-2 decyltetradecanoate dipentaerythritol can be mentioned mono-dehydroabietic acid mono 9,10 dihydroxy stearyl acid polyglycerol or the like. Although the above examples mainly describe disproportionated rosin and hydrogenated rosin, ordinary rosin may be used in the present invention.

(C) at least one ester selected from the group consisting of fatty acid esters of polyhydric alcohol and esters of rosin, fatty acid and polyhydric alcohol in the transparent solid cosmetic composition of the present invention is 0.1 to 70% by weight.
And more preferably 1 to 50% by weight. 0.
If it is less than 1% by weight, the effect of compatibility with 12-hydroxystearic acid, special rosin ester and oil is not sufficiently exhibited, and the transparency of the transparent solid cosmetic of the present invention is poor. Is not preferred because of the tendency to drop.

The components (B) and (C) esters used in the present invention range from low to high melting points, and those having a high melting point are liquid substances used in external preparations for skin. Easy to use when dissolved in water. Examples of these include liquid paraffin, squalane, glycerol tri-2-ethylhexanoate, glycerol triisostearate, glycerol diisostearate, olive oil, macadamia nut oil, avocado oil, castor oil, sunflower oil, oleyl oleate, orange luffy oil , Glycerol triisostearate,
Examples thereof include glycerol diisostearate, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, neopentyl glycol dicaprate, isostearyl alcohol, and 2-octyl dodecyl alcohol.

Next, the oil component (D) used in the present invention will be described. Essentially any oil component usually used in cosmetics and the like may be used, and the type thereof is not limited. For example, avocado oil, camellia oil, turtle oil,
Macadamia nut oil, corn oil, mink 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, eno oil, soybean oil, peanut oil, peanut oil, Liquid oils such as teaseed oil, kaya oil, rice bran oil, cinnamon oil, Japanese kiri oil, jojoba oil, germ oil, triglycerin, glycerin trioctanoate, glycerin triisopalmitate, dimethyl polysiloxane, methyl hydrogen polysiloxane, Silicon oils such as methylphenylpolysiloxane and octamethylcyclotetrasiloxane, cocoa butter, coconut oil, horse fat, hydrogenated coconut oil, palm oil, tallow, sheep butter, hardened tallow, palm kernel oil, lard, beef bone fat, Solid oils and fats such as molle kernel oil, hydrogenated oil, beef leg fat, mocro, hydrogenated castor oil, beeswax, candelilla C, cotton wax, carnaupa wax, paypery wax, ibota wax, whale wax, montan wax, nuka wax, lanolin, kapok wax, lanolin acetate, liquid lanolin, sugar cane wax, lanolin fatty acid octyldodecyl, lanolin fatty acid isopropyl, hexyl laurate, reduced lanolin, jojopalow, Hard lanolin,
Shellac wax, POE lanolin alcohol ether, P
Waxes such as OE lanolin alcohol acetate, POE cholesterol ether, lanolin fatty acid polyethylene glycol, and hydrogenated lanolin alcohol ether of POE, liquid hydrocarbon oils such as liquid paraffin, squalene, squalane, ozokerite, pristane, paraffin, ceresin, vaseline, microcrystalline Solid or semi-solid hydrocarbon oils such as wax, myristic acid, palmitic acid, stearic acid, oleic acid, isostearic acid, cetyl alcohol, hexadecyl alcohol, higher fatty acids such as oleyl alcohol, higher alcohol ether oils and the like. be able to.

Among these, in order to maintain excellent transparency in the transparent solid cosmetic of the present invention, an oil component having a refractive index of 1.42 to 1.60 is preferable, and more preferably 1.45. It has a refractive index of １．５1.54.

The compounding amount of the oil component (D) in the transparent solid cosmetic of the present invention is preferably from 10 to 80% by weight, more preferably from 20 to 65% by weight. 10wt
If it is less than 80% by weight, the releasability and elongation are inferior.

The transparent solid cosmetic of the present invention is not particularly limited as long as it is transparent and solid. For example, it can be molded by heating and melting in a mold or the like, or can be directly filled into a feeding container or the like. Further, lipsticks, lip glosses, lip balms, lip balms, foundations, blushes, antiperspirant sticks, eye shadows, eye liners, hair tics, hair glows, creams, fragrances and the like obtained by melting and filling in a metal plate or the like are exemplified. I can do it.

The transparent solid cosmetic of the present invention further comprises, in addition to the essential components, pigments, pearls, fragrances, humectants generally used in cosmetics, as long as the effects of the present invention are not impaired. , Preservatives, beauty agents, antioxidants, ultraviolet absorbers, resins, polymers, surfactants, pigments, fresheners,
Anti-inflammatory agents, antiperspirants, skin activators, blood circulation promoters, emollients, bactericides, agents that impart various effects such as whitening agents,
Further, a thickener, an alcohol, an oil agent, a wax, a powder, a solvent and the like can be appropriately compounded.

[0019]

EXAMPLES The present invention will be specifically described below with reference to Examples and Comparative Examples, but these are not intended to limit the present invention. (Examples 1 to 6) About 100 to 1
The mixture was heated and melted at 10 ° C., deaerated, poured into a mold at about 80 ° C., and cooled and molded to prepare a lip balm. In Table 1, (3), (4), (5),
(6), (8), (9), (12), (13) and (18) are (C) esters of the present invention,
(6), (7), (10), (11), (14), (1
5), (16), (17) and (19) are (D) oil components of the present invention. The “specialized rosin ester (disproportionated rosin glycerin ester)” used in Examples 1 to 6 has a transmittance of 99 in the wavelength range of 700 to 400 nm.
% Or more.

Comparative Examples 1-2 A lip balm was prepared in the same manner as in Examples 1-6 using the components shown in Table 1.

(Evaluation) Examples 1 to 5 prepared as described above
6 and Comparative Examples 1-2, the following evaluation methods (i)-(i)
The results evaluated by v) are shown in [Table 2].

[0022]

[Table 1]

[0023]

[Table 2]

[0024]

EFFECT OF THE INVENTION The transparent solid cosmetic of the present invention is several times more excellent in transparency and stability than conventional ones, is hard to break as a stick, has high strength, and is superior in adhesion and extensibility. The feeling is also improved.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (reference) C11D 3/20 C11D 3/20 3/382 3/382 17/00 17/00 F term (reference) 4C083 AC022 AC301 AC302 AC352 AC391 AC392 AD152 AD531 AD532 BB11 CC11 DD01 DD11 EE01 EE06 EE07 4H003 AC03 BA01 CA09 DA02 EB02 EB08 EB09 EB29 EB37 EB46 FA10 FA16 FA21

Claims (4)

[Claims] 1. A transparent solid cosmetic comprising the following three components (A) to (C). (A) 12-hydroxystearic acid (B) special rosin ester (C) at least one ester selected from polyhydric alcohol fatty acid esters and esters composed of rosin, fatty acids and polyhydric alcohols 2. A transparent solid cosmetic comprising the following four components (A) to (D). (A) 12-hydroxystearic acid (B) Special rosin ester (C) At least one ester selected from polyhydric alcohol fatty acid esters and esters composed of rosin, fatty acid and polyhydric alcohol (D) Oil component (B) the special rosin ester is 700 to 4;
3. The transparent solid cosmetic according to claim 1, wherein the transmittance is 70% or more in a wavelength range of 00 nm. 4. An oil component (D) having a refractive index of 1.42-1.
The transparent solid cosmetic according to claim 2, wherein the cosmetic is 60.