JPS6187616A - Non-aqueous eye-make - Google Patents

Abstract

PURPOSE:To provide the titled eye-make having excellent water-resistance, oil-resistance, adhesivity, dispersion stability of the pigment with time, and usability, by using a solid oil component, a volatile oil component, a pigment, and a branched higher fatty acid ester of an epoxy resin, as essential components. CONSTITUTION:A non-aqueous eye-make containing a solid oil component (e.g. carnauba wax), a volatile oil component (e.g. isoparaffin hydrocarbon having low boiling point), a pigment (e.g. iron oxide) and an epoxy resin branched higher fatty acid ester of formula (R is acyl residue of 16-20C branched fatty acid), as essential components. An eye-make having excellent temperature- viscosity characteristics and accordingly excellent stability, adhesivity and abrasion resistance, improved oil-resistance and high durability can be prepared without lowering the merits of the non-aqueous cosmetic, i.e. high water- resistance, by compounding the branched higher fatty acid ester of epoxy resin. The amount of the ester is 5-50wt% based on the whole composition.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an eye makeup composition that is excellent in water resistance, oil resistance, and adhesion, as well as excellent pigment dispersion stability over time and ease of use. The purpose is to improve eye makeup products such as liners and mascara.

Conventionally, eye makeup products such as eyeliners and mascaras have been broadly classified into emulsion types, film-forming types, and non-aqueous types based on their forms. In recent years, the scope of use of make-up has expanded, and it has become commonplace to wear make-up even when playing sports or going to the beach in the summer, which used to be rarely done. These product groups, called sports makeup and summer makeup, are required to be more water resistant and sweat resistant (sebum resistant) than conventional products.
Solving this problem has been one of the challenges for engineers.

Until now, among the three types of emulsifying, film-forming, and non-aqueous types, the non-aqueous type had the best water resistance and was the main type in the above product group, but it still had many problems. In other words, the non-aqueous type consists of solid oil for the purpose of forming a film, volatile oil for increasing drying properties, and pigment as the main ingredients, so there is no problem with water resistance, but it may be harmful to the skin. Due to its poor adhesion, it is vulnerable to external frictional forces, and makeup can easily come off due to the effects of sebum, base cosmetics, and oils derived from eye shadows, which are generated when applying. It had the disadvantage of being easy.

Furthermore, non-aqueous types have a wax gel structure formed by a combination of various solid waxes, which retains pigments and prevents sedimentation, so their temperature-viscosity characteristics are not very good, such as At low temperatures in winter, the viscosity becomes too high, resulting in a marked deterioration in usability, while at high temperatures in summer, the viscosity decreases, causing separation, which is a fatal product defect.

For this reason, conventionally, in addition to the above-mentioned main ingredients, semi-solid oils, liquid oils, and surfactants have been used in combination to improve temperature viscosity characteristics; Type oil, liquid oil or surfactant is more effective than solid oil.
Since the compatibility with sebum is even better, the makeup is more likely to come off and the product has poor makeup retention.

Therefore, in view of the above-mentioned problems, the present inventor conducted extensive research in order to obtain an eye makeup composition that has excellent oil resistance, abrasion resistance, and ease of use while taking advantage of the non-aqueous type's excellent water resistance. As a result, when the epoxy resin branched higher fatty acid ester is used in combination as an essential component, the above problems can be solved, that is, stability is guaranteed as a result of excellent temperature viscosity properties due to the addition of the epoxy resin branched higher fatty acid ester, The present invention has been completed based on the discovery that oil resistance can be improved by taking advantage of the characteristics of having excellent adhesion and abrasion resistance and being difficult to be miscible with oil and sebum.

The present invention relates to a non-aqueous eye makeup composition containing solid oil, volatile oil, pigment, and epoxy resin branched higher fatty acid ester as essential components.

The essential components used in the present invention will be explained in detail below.

First, solid oils include solid waxes such as carnauba wax, candelilla wax, wood wax, and beeswax, ceresin,
Solid hydrocarbons such as solid paraffin wax, polyethylene wax, and microcrystalline wax, solid class fatty acids such as palmitic acid, stearic acid, and behenic acid, and solid higher alcohols such as cetanol and stearyl alcohol. It is a solid oily ingredient used in eye makeup.

The volatile oil is used to improve drying properties, and includes, for example, low-boiling isoparaffin hydrocarbons, low-boiling silicone oils, and low-boiling cyclic silicone oils.

There are no particular restrictions on pigments (inorganic pigments such as iron oxide and chromium oxide, which are usually used in cosmetics, organic pigments such as legal tar pigments, and constitutional pigments such as sericite, talc, kaolin, and titanium oxide). Examples include.

Next, the epoxy resin branched higher fatty acid ester is a resin ester having the structure shown below.

(However, R represents a branched aliphatic acyl residue having 16 to 20 carbon atoms.) As shown above, this resin ester has an epoxy resin main skeleton, and is a partially acylated compound. The fatty acid components applicable to acylation include branched fatty acids having 16 to 20 carbon atoms, such as 2-hexyldecanoic acid for those having 16 carbon atoms, and methyl branched chain fatty acids (for those having 18 carbon atoms). (manufactured by Emery), 5.
7.7-) Limethyl-2-(1, each, 3-trimethylbutyl)-octanoic acid (e.g. manufactured by 8 Sankagaku Co., Ltd.)'j%4
Inoxocol), isostearic acid such as 2-hebutylundecanoic acid (e.g. Diadol manufactured by Mitsubishi Kasei Corporation), and 2-octyldodecanoic acid with 20 carbon atoms, but characteristically, isostearic acid is The best.

Here, when a branched fatty acid having less than 16 carbon atoms is used as an acylating agent, the solubility decreases, making it difficult to incorporate into a prescription system, and water resistance decreases. On the other hand, in the case of a branched fatty acid having a carbon number larger than 20, the oil resistance is lowered and the adhesiveness is also insufficient, which is not so preferable.

Furthermore, in the past, some products used linear saturated fatty acids such as stearic acid and unsaturated fatty acids such as oleic acid and silicic acid as acylating agents; If the concentration is below, the formulation may become highly viscous or solidified, while in the latter case, there are problems with adhesion, oxidation stability, solubility, etc., and it cannot be said to be satisfactory.

On the other hand, although the branched fatty acid resin ester according to the present invention is inferior in thickening effect and adhesive strength to the straight chain fatty acid resin ester having the same number of carbon atoms, it has sufficient properties as an eye makeup agent, and also has temperature viscosity characteristics. The viscosity is moderate, that is, the viscosity does not change much between seasons, and there are no problems in terms of oxidation stability or solubility. In addition, the present resin ester preferably has a molecular weight in the range of 2,000 to 4,000, but the range is determined depending on the type of acyl residue or degree of esterification, etc. isn't it.

The amount of solid oil applied to the present invention is in the range of 2 to 40% by weight, preferably 5 to 20% by weight, based on the total weight of the cosmetic. If the amount is less than 2% by weight, sufficient network structure viscosity to retain the pigment for a long time will not be obtained, and pigment sedimentation or separation will easily occur, and if the amount exceeds 40% by weight, pigment sedimentation or separation may occur. Although no problem arises, the viscosity becomes too high and it becomes difficult to expect comfortable application when using makeup.

The amount of volatile oil to be blended is in the range of 25 to 70% by weight, preferably 30 to 60M, based on the total weight of the cosmetic. If the amount is less than 25% by weight, the drying after application will be extremely slow and the usability will be poor, and if the amount exceeds 70M, the viscosity of the formulation will become low and the stability will not only deteriorate.
During use, eyeliner causes problems such as smearing, and mascara tends to adhere in a distorted manner.

Next, the amount of pigment to be blended is determined by the amount of other ingredients and the required functions such as hiding power as an eye makeup product, but it is usually preferably 5 to 40% by weight based on the total weight of the cosmetic. is selected in a range of 10 to 30% by weight.

Finally, the blending amount of the epoxy resin branched higher fatty acid ester is 5 to 50% by weight, preferably 10 to 40% by weight, based on the weight of the cosmetic product, and sufficient adhesion cannot be obtained when the amount is less than 05% by weight. On the other hand, if the amount exceeds 50% by weight, the viscosity becomes too high and the usability deteriorates.

As described above, by selecting and appropriately combining the solid oil, volatile oil, pigment, and epoxy resin branched higher fatty acid ester described above, the non-aqueous eye makeup composition targeted by the present invention can be obtained. Furthermore, in addition to the above essential ingredients, semi-solid or liquid oils, pearl pigments, pigment dispersants, plasticizers, fibers,
Flavors, preservatives, etc. may be used within the scope of the purpose of the present invention. Similarly, in order to further improve the thickening effect and adhesive strength, it is also possible to use the above-mentioned epoxy resin linear saturated higher fatty acid ester in combination within a range that does not deteriorate the low-temperature viscosity characteristics of the formulated system. When used together under such conditions, the properties of the resulting non-aqueous eye makeup composition can be the best under all temperature conditions.

In addition, among the above additive components, especially regarding liquid oil,
In order to suppress makeup deterioration due to compatibility with sebum as much as possible, it is preferable to keep the blending amount to 3% by weight or less based on the total weight of the solid oil component.

The non-aqueous eye makeup composition of the present invention is composed of the above-mentioned composition, in which the epoxy resin branched higher fatty acid ester is added to a melt of an extrudable oil component and a solid oil component, uniformly heated and dissolved, and then cooled with stirring. Therefore, it is possible to suppress the crystal growth of the solid oil component, or to make it eutectic, so that it can be dispersed into extremely fine solid oil particles compared to the case where the resin ester according to the present invention is not used.

Due to the function of this resin ester as a dispersant, the system becomes highly viscous and has an excellent effect of preventing pigment sedimentation, and on the other hand, due to the properties of the resin ester itself, it can be used as an eye makeup composition with excellent adhesive properties.

Next, in order to evaluate the non-aqueous eye makeup composition obtained according to the present invention, the eyeliner of the present invention obtained in Example 1 described below, the conventional eyeliner shown in Comparative Example 1 described later, and the eyeliner according to the present invention obtained in Example 1 described later, and Using the mascara of the present invention obtained in Example 2 and the conventional mascara shown in Comparative Example 2 below as a comparative product, the five evaluation items of water resistance, oil resistance, film strength, stability, and usability were compared. I conducted a test. The results are shown in Table-1.

(1) Water resistance test Each of the eyeliner and mascara samples above was applied onto a resin board using a nylon brush. After that, it was air-dried for 1 hour at room temperature, then immersed in running water for 10 minutes, and checked for discoloration, bleeding, peeling, etc. Number of samples: 100 each Evaluation: ○: No change, Δ: Partial color fading, peeling, ×:
Completely faded or peeled.

(2) Oil resistance test Each test plate prepared in the same manner as in the above water resistance test was immersed for 10 minutes in the circulating flow tank of squa 2, and evaluated using the same evaluation criteria as in the above test.

(3) Film strength test Each test plate that had undergone the water resistance test or oil resistance test was repeatedly rubbed with a water-containing or squalane-containing sponge chip using a friction tester to check for any falling off or peeling. Evaluation: ○: No change, Δ: Partially peeled off and fell off, X: Completely peeled off and fell off.

(4) Stability test samples Each eyeliner and mascara sample was filled into a test glass bottle and tested at -10°C, 20°C, and 40°C under constant temperature and -
The mixture was left for one month under aging conditions of 5° C. to 40° C. and 48 hr cycle, and separation, aggregation, and viscosity change were checked. Evaluations are: ○: No change, Δ: Slight separation, aggregation, and viscosity change; X: Significant separation, aggregation, and viscosity change.

(5) Usability test Each sample was filled into an eyeliner container and a mascara container, and 40 female panelists conducted a regular usage test (10 people for each sample) for one month to determine the ease of drawing. , bleeding, etc. were comprehensively evaluated. The evaluation is O: good, Δ: very good, X: poor.

Table 1 Comparative Evaluation Test Examples and comparative examples are shown below. Incidentally, the blending ratio is in parts by weight.

Example 1. eyeliner [;Poxyresin isostearin 24. .

C Ester (Method) Part A, part 0, and part D are heated to 80 to 90°C, stirred to be uniform, and then adjusted to 75CK. After adding kB part of this and dispersing it by stirring at high speed, it was rapidly cooled to 30°C. Apply once to 3 rolls.

Comparative example 1. Eyeliner C [Volatile Isoparaffin 65.0 (Method) Mix 3 parts and 0 parts and disperse with 3 rolls to make a paste. The remainder of Part A and Part 0 is heated to 80-90°C and stirred to make it homogeneous. Add the previous one to this, and 8
After adjusting the temperature to 0°C, it is rapidly cooled to 30°C while stirring at high speed. , Example 2 Mascara C (Aluminum Stearate 1.8 (Method) Part B and part D are mixed and dispersed with three rolls to make yeast. Part A and part D are 80~ Heat to 90°C and stir to make it homogeneous.Add the previous paste and bring it to below 80°C while stirring at high speed.To this, add the remainder of Part 0 and Part D and make it homogeneous. 90℃ while stirring
After that, it is cooled to 30C.

Comparative Example Z Mascara (Method) A part of B tm and 0 parts were mixed and dispersed with 5 rolls to form a cast.

Part A and part 0 are heated to 80 to 90°C and stirred until uniform. After adding the yeast from above and dispersing at high speed,
Cool to 30°C.

Claims (1)

[Scope of Claims] 1) A non-aqueous eye makeup composition containing solid oil, volatile oil, pigment, and epoxy resin branched higher fatty acid ester as essential components. 2) Claim 1) wherein the fatty acid components of the epoxy resin branched higher fatty acid ester are 2-hexyldecanoic acid, isostearic acid, and 2-octyldodecanoic acid.
Non-aqueous eye make-up agent as described in Section 1.