JPH01146813A - Oily solid cosmetic - Google Patents

Abstract

PURPOSE:To obtain an oily solid cosmetic having excellent touch without causing deterioration of qualities resulting from sweat phenomena and blooming and reduction in breakage strength, containing a diglyceride or triglyceride and a specific sucrose fatty acid ester. CONSTITUTION:An oily solid cosmetic containing 0.5-30wt.%, especially 1-15wt.% diglyceride or triglyceride (preferably one containing at least one behenic acid residue in one molecule) having 30-60 deg.C, preferably 40-50 deg.C melting point and 0.1-10wt.%, especially 0.2-5wt.% sucrose fatty acid ester having 3-8 average degree of substitution. A sucrose fatty acid ester comprising constituent fatty acid consisting of only 6-36C long-chain saturated or unsaturated fatty acid or of a mixture of the long-chain fatty acid (3-7 average substitution degree) and 2-4C short-chain fatty acid (1-5 average substitution degree) may be cited as the sucrose fatty acid ester.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to solid cosmetics, specifically specific cosmetics. tJ! i
The present invention relates to an oil-based solid cosmetic containing fatty acid ester.

[Conventional technology and its problems]

Typical solid cosmetics include lipsticks, lip balms, foundation sticks, stick cosmetics such as ticks, and pencil-shaped cosmetics such as eye brow pencils and eyeliner pencils.

There are pressed powders such as foundation, eye shadow, and blush, and oil-based cake-like cosmetics.

Among these, oil-based solid cosmetics include solid fats such as carnauba wax, candelilla wax, ceresin, microcrystalline wax, hydrogenated animal and vegetable oils, beeswax, and polyethylene wax, and castor oil, olive oil,
Powder such as pigment is dispersed as necessary in a mixed system of liquid oil such as jojoba oil, squalane, various synthetic ester oils, chocone oil, and liquid paraffin.

Also, as the oily component of solid oily cosmetics, semi-solid parts such as vaseline, which exhibit properties intermediate between solid fats and liquid oils, are often used.

For oil-based solid cosmetics using the above-mentioned solid fats, liquid oils, and semi-solid parts, the elapsed storage time, the temperature of the storage environment,
Changes in humidity and other factors can cause an imbalance in compatibility between oil components, resulting in deterioration in appearance quality due to sweating and pluming phenomena, and a decrease in breakage strength due to large changes in hardness (yield value). There were disadvantages such as causing In particular, the above tendency was remarkable when diglyceride or triglyceride having a melting point of 30 to 60°C was used as the solid fat or semisolid part.

Therefore, the object of the present invention is to provide an oil-based solid cosmetic containing diglyceride or triglyceride with a melting point of 30 to 60°C, which solves the above-mentioned problems. To provide an oil-based solid cosmetic that does not cause skin irritation and has an excellent feel.

[Means for solving problems]

As a result of various studies, the present inventors have found that the above objective can be achieved by blending a specific sucrose fatty acid ester into a solid cosmetic containing a solid or semi-solid diglyceride or triglyceride with a melting point of 30 to 60°C. It has been found that an oil-based solid cosmetic that can achieve this goal can be obtained.

The present invention was made based on the above findings, and has a melting point of 30
diglycerides or triglycerides at ~60°C, preferably 40-50°C, and an average degree of fatty acid substitution of 3-8
The above object has been achieved by providing an oil-based solid cosmetic characterized by containing a sucrose fatty acid ester.

The oil-based solid cosmetic of the present invention will be described in detail below.

The sucrose fatty acid ester used in the oil-based solid cosmetic of the present invention is lipophilic and has an average degree of fatty acid substitution of 3 to 8. Specifically, the following (1) to (3) can be mentioned.

(1) The constituent fatty acids consist only of long chain saturated or unsaturated fatty acids with fatty acid residues having 6 to 36 carbon atoms, and the average degree of substitution of fatty acids is 3 to 8 long chain fatty acids! sugar ester.

(2) The constituent fatty acids are composed of the above-mentioned long chain fatty acids and short &ri fatty acids whose fatty acid residues have 2 to 4 carbon atoms, and the average degree of fatty acid substitution is 3 to 8 long chain/short chain mixed fatty acid sucrose Ester, - (3) The above-mentioned long chain/short chain mixed fatty acid ester, which has an average degree of substitution of long chain fatty acids of 3 to 7 and an average degree of substitution of short chain fatty acids of 1 to 5.

Preferred specific examples of the above sucrose fatty acid ester include:
Shi = Iw1 heptalaurate, Shimi m tetrapalmitate, sucrose tristearate, sucrose pentastearate, sig sugar hexauroyl diacetate, ShiwtfB
Tetrapalmityltetrabutyrate, sucrose monostearoyl hexaacetate, sucrose distearoylhexaacetate, sucrose tetrastearoyltetraacetate, sucrose pentastearoyl triacetate and sucrose!
Examples include I sugar tetrabehenyl tetraacetate.

These are usually obtained as a mixture, and their manufacturing method, properties, etc. are disclosed in Japanese Patent Publication No. 53-6219 and Japanese Patent Publication No. 53-6219.
It is described in Japanese Patent No. 6220.

Melting point 30-60°C used for oil-based solid cosmetic of the present invention
, preferably 40-50° C. Di- or triglycerides are natural or synthetic glycerides that are solid or semi-solid at room temperature, where melting point refers to elevated melting point.

Examples of the above natural glycerides include cacao butter,
Examples include Japanese wax, beef tallow, hydrogenated beef tallow, hydrogenated castor oil, and palm oil.

Further, among the above-mentioned synthetic glycerides, those having at least one behenic acid residue in one molecule are preferable in terms of imparting a texture to cosmetics.

Among the above synthetic glycerides, preferred examples of triglycerides include two saturated straight fatty acid residues having 20 or more carbon atoms such as behenic acid in one molecule, and one carbon number residue such as oleic acid.
Triglycerides having one unsaturated fatty acid residue of 6 to 22 are mentioned.

The manufacturing method, properties, etc. of this triglyceride are disclosed in JP-A-62-6635 and JP-A-61-2.10017.

Among the above synthetic glycerides, preferred examples of diglycerides include mixed fatty acid diglycerides having behenic acid residues and 2-ethylhexanoic acid residues in one molecule. This diglyceride is obtained by esterifying glycerin with a higher straight saturated fatty acid having 18 to 22 carbon atoms such as behenic acid, 2-ethylhexanoic acid, and glycerin, for example, by a known method.

The Nisder conversion method includes a method using an acid halide,
Examples include an ester group exchange method, and an esterification method without a catalyst or in the presence of a catalyst under normal pressure or reduced pressure. Alternatively, a production method using an immobilized enzyme such as lipase can also be used.

In addition, the excess monoglyceride formed during the esterification reaction can be removed by molecular distillation or chromatography, and the glyceride mixture can be concentrated by solvent extraction, solvent fractionation, molecular distillation, etc. can.

The preferred amount of the above-mentioned sucrose fatty acid ester in solid cosmetics varies depending on the presence or absence of pigments, but it is less than 0 of the total amount.
．． 1 to 1 (111%, more preferably 0.2 to 5ff
If 1%. Further, the preferred blending amount of the solid cosmetic of diglyceride and/or triglyceride having a melting point of 30 to 60° C. is 0.5 to 30% by weight, more preferably 1 to 15% by weight of the total blending amount. Below these ranges, sufficient effects cannot be obtained, and above these ranges, the solid cosmetic becomes hard and brittle.

The solid cosmetic of the present invention mainly consists of a cosmetic oily raw material containing the above-mentioned essential ingredients and a cosmetic pigment.

As the cosmetic oily raw materials in the oily solid cosmetic of the present invention, all solid or liquid oily raw materials that can be used as cosmetics and mixtures thereof, including specific silasugar fatty acid esters, are used.

Solid or semi-solid oily raw materials other than the essential components (glyceride and sucrose fatty acid ester) of the present invention include, for example, Japanese wax, hardened beef tallow, carnauba wax, candelilla wax, rice wax, beeswax, ceresin wax, and microcrystalline. Examples include wax, paraffin wax, polyethylene wax, hardened jojoba oil, lanolin and petrolatum.

In addition, liquid oily raw materials other than the above essential components include, for example,
Hydrocarbons such as liquid paraffin, liquid isoparaffin (liquid polyisobutylene) and squalane, olive oil,
Examples include natural animal and vegetable oils and fats such as castor oil and jojoba oil, chocon oil such as dimethylpolysiloxane, and synthetic ester oils such as isopropyl myristate. Incidentally, these liquid oils are usually 1 to 80% by weight, preferably 5 to TO! r
It is used in a range of 1%.

As the cosmetic pigment in the oil-based solid cosmetic of the present invention, known pigments that can be used in cosmetics or mixtures thereof can be used. Specifically, for example, talc,
Extending pigments such as sericite, mica, kaolin, shoka, nylon powder, polyethylene powder, silk powder, and cellulose powder; carbon black, titanium oxide, iron oxide, zinc oxide, ultramarine blue, navy blue, chromium oxide,
Coloring agents such as organic tar-based pigments and lakes; composite pigments such as mica titanium and iron oxide coated mica; and the like. Further, these cosmetic pigments may be surface-treated with chocone, higher fatty acids, higher alcohols, fatty acid esters, metal soaps, amino acids, alkyl phosphates, or the like. Incidentally, these pigments are used in solid cosmetics in an amount of 0 to 95 ffl%, preferably 5 to 7 ffl%.

Furthermore, the solid cosmetic of the present invention may optionally contain known cosmetic ingredients other than those mentioned above, such as oily ingredients other than those mentioned above, surfactants, medicinal ingredients, preservatives, antioxidants, and It goes without saying that fragrances and the like can be added.

〔Example〕

Next, the oil-based solid cosmetic of the present invention will be explained in more detail based on Examples. The glyceride used in Example 1 was obtained in Synthesis Example 1 below.

Furthermore, the units of numerical values shown in each column in Tables 1, 3, 5, and 6 are parts by weight.

Synthesis Example 1 1 mol of glycerin, 1 mol of behenic acid, 1 mol of 2-ethylhexanoic acid, and activated carbon were added at 0.4% based on the total charge (■), and at 150 to 260°C, the calculated amount of water produced by esterification was The reaction was carried out up to the point. The time required is 2
In ~4 hours, 90-100% of the calculated amount of water was separated.
Next, in order to remove unreacted glycerin and fatty acids, steam distillation was performed at 150 to 200°C for 1 hour, and then
The activated carbon was filtered off to obtain a glyceride mixture.

Furthermore, the obtained glyceride mixture was subjected to Shoka gel column chromatography to concentrate diglyceride,
Furthermore, 5 times ffl amount of n for the diglyceride concentrate.
- Solvent fractionation is performed using hexane, and the middle melting point part (
behenic acid, 2-ethylhexanoic acid diglyceride).

Example 1 Lip balm The ingredients shown in Table 1 below were heated to 80°C, mixed uniformly, poured into a mold, cooled and solidified to form a lip balm (
A product of the present invention and a comparative product) were manufactured.

The above-mentioned products of the present invention and comparative products were examined for the presence or absence of sweating and powdering phenomena (blooming).

For the sweating phenomenon, the specimen was kept at 5℃ for 4 hours, then at 40℃60%R.
By visually observing the sweating condition after leaving the specimen under the conditions of Its presence or absence was determined by observing it. The results are shown in Table 2 below.

From the results shown in Table 2 below, it can be seen that the products of the present invention exhibit no sweating or powdering phenomena, and are extremely stable in terms of quality.

Table 1 (melting point 44°C) Table 2 Example 2 Lipsticks Lipsticks (products of the present invention and comparative products) having the formulation shown in Table 3 below were manufactured, and these were stored at a constant temperature and room temperature.
The sweating and powdering phenomena of the lipstick were observed over time. The results are shown in Table 4 below.

Table 3 From the results in Table 4 above, it can be seen that the product of the present invention is effective against sweating and powdering phenomena, and is stable in quality.

Example 3 Eyebrow pencils (products of the present invention and comparative products) having the composition shown in Table 5 below were manufactured by the following manufacturing method.

[Manufacturing method]

Each component is heated to 80°C, mixed repeatedly in a roll mill, cooled to room temperature, and molded by extruding the core from a nozzle with a squeeze injection machine. The core is attached to a piece of wood that has a core-shaped groove, and by gluing, conjugating, and cutting, it is molded into a pencil shape and produced as a product.

Table 5 Regarding the above-mentioned products of the present invention and comparative products, Example 2 (lipstick)
When we examined the presence or absence of sweating and dusting phenomena (pluming) using the same method as above, it was found that sweating and dusting phenomena (pluming) were observed in comparison product M, but sweating and dusting phenomena (pluming) were observed in product L of the present invention. No powdery phenomenon was observed, and the quality was extremely stable.

Example 4 Foundation Foundations (products of the present invention and comparative products) having the composition shown in Table 6 below were manufactured by the following manufacturing method.

[Manufacturing method] Mix oily raw materials and melt by heating at 85°C. The mixed pigment is added to this and mixed repeatedly using a roll mill. The kneaded mixture is heated to 85°C, poured into a container, cooled and molded to form a product.

Table 6 The above-mentioned products of the present invention and comparative products were examined for sweating and powder formation (pluming) using the same method as in Example 1 (lip balm). Sneaking and powdering phenomena (blooming) were observed, but sweating and powdering phenomena were not observed in products N and 0 of the present invention, and the quality was stable.

〔Effect of the invention〕

Even if the oil-based solid cosmetic composition of the present invention contains diglyceride or triglyceride having a melting point of 30 to 60°C, it does not cause sweating or powdering, and has an excellent texture.

Procedural amendment document January 14, 1988, Japanese Patent Application No. 62-305426 2, Name of invention: Oil-based solid cosmetics 3, Relationship with the person making the amendment Patent applicant (091) Kao Co., Ltd. 4, Agent 601 Pacific Nogizaka, 6-29 Akasaka 9-chome, Minato-ku, Tokyo Voluntary amendment (amendment within 1 year and 3 months from the date of application) 6. Column for detailed explanation of the invention of the Mei IO document subject to amendment.

7. Contents of amendment (1) Table 4 on page 16 has been amended as attached (amendment of the symbol in the column for comparative product J in Table 4).

Claims (6)

[Claims] (1) An oil-based solid cosmetic containing a diglyceride or triglyceride with a melting point of 30 to 60°C and a sucrose fatty acid ester with an average degree of substitution of 3 to 8. (2) The content of diglyceride and/or triglyceride is 0.5 to 30% by weight, and the content of sucrose fatty acid ester is 0.1 to 10% by weight.
The oil-based solid cosmetic according to item 1). (3) The oil-based solid cosmetic according to claim (1), wherein the sucrose fatty acid ester is composed of only long-chain saturated or unsaturated fatty acids with fatty acid residues having 6 to 36 carbon atoms. fee. (4) The sucrose fatty acid ester is composed of a long chain saturated or unsaturated fatty acid in which the fatty acid residue has 6 to 3 carbon atoms and a short chain fatty acid in which the fatty acid residue has 2 to 4 carbon atoms.
The oil-based solid cosmetic according to claim (1), which is a long-chain/short-chain mixed fatty acid ester. (5) Claim No. 4, wherein the average degree of substitution of long chain fatty acids is 3 to 7, and the average degree of substitution of short chain fatty acids is 1 to 5.
Oil-based solid cosmetics as described in section. (6) The oil-based solid cosmetic according to claim (1), wherein the diglyceride and triglyceride have at least one behenic acid residue in one molecule.