JP2020186211A - Method of manufacturing multicolored solid cosmetic - Google Patents

Abstract

To provide a method of manufacturing a multicolored solid cosmetic in which the planar arrangement of each colored composition constituting the multicolored solid cosmetic is maintained similarly upward and downward in the vertical direction.SOLUTION: Provided is a method of manufacturing a multicolored solid cosmetic in which a plurality of colored solid compositions are arranged regularly or at random in the plane direction, the method including a step of filling a container with the plurality of colored compositions under the condition of 70 to 130°C, the standard deviation in each G" at the temperature at the filling of the plurality of colored compositions being 10 or less.SELECTED DRAWING: Figure 1

Description

The present invention relates to a multicolor solid cosmetic and a method for producing the same.

Base make-up is a make-up made to make the skin look beautiful. Examples of base make-up cosmetics include a makeup base for improving the ride of the foundation and a foundation for adjusting the skin color. In addition, cosmetics are generally composed of a single color such as flesh color.

By the way, with respect to the foundation, in order to make the appearance of the cosmetic itself attractive, a solid foundation is formed by multicolor filling (Patent Document 1 and the like). These multicolored solid foundations are usually used by mixing multicolored compositions when applied to the skin.

JP-A-2017-178878

In Patent Document 1, by adjusting the hardness of each color constituting the multicolor solid cosmetic, the amount taken into the puff does not vary even when the cosmetic is used when the cosmetic is rubbed with a puff. It is disclosed that it is possible to maintain the color of.
However, if the arrangement of the composition of each color filled in the cosmetic container is different or disordered between the upper part and the lower part of the container, the color may be different from the initial color or the desired color as the cosmetic is used. You may not be able to get the taste. Further, the present inventors have found that the use of a multicolored solid cosmetic composition composed of a combination of an advanced color and a receding color can impart a good transparency and a sense of depth to the skin (Japanese Patent Application No. 2017-194594). , Japanese Patent Application No. 2018-127692), If the upper part and the lower part of the container are different or disturbed as described above, the advance color and the receding color cannot be applied to the skin in a well-balanced manner as the cosmetic is used, and a desired transparency is obtained. And it becomes impossible to give a sense of depth.
In view of such a situation, the present invention relates to a multicolored solid cosmetic in which the arrangement of the coloring composition of each color constituting the multicolored solid cosmetic is maintained in the same manner in the vertical direction above and below. An object is to provide a manufacturing method.

The present inventors have proceeded with research to solve the above problems, and have made the viscous properties of the coloring compositions of each color constituting the multicolored solid cosmetics uniform, specifically, of each G'' at the temperature at the time of filling. The present invention was completed with the idea that the above problems can be solved by reducing the variation.

That is, the present invention is as follows.
[1] A method for producing a multicolored solid cosmetic, in which a plurality of coloring compositions are regularly arranged in a plane direction or arranged at random, and the plurality of colorings are colored under a condition of 70 to 130 ° C. A production method comprising a step of filling a container with a composition, wherein the standard deviation of each G'' at the temperature at the time of filling the plurality of colored compositions is 10 or less.
[2] The production method according to [1], wherein the plurality of colored compositions are filled in a container at the same time.
[3] The production method according to [1] or [2], wherein the plurality of coloring compositions include a solid composition having at least one advanced color and a solid composition having at least one receding color.
[4] The advanced color is selected from colors classified into red, red-yellow, and yellow in the Mansell color system, and the receding color is classified into green, bluish green, and blue in the Mansell color system. The manufacturing method according to [3], which is selected from the colors to be used.
[5] The production method according to any one of [1] to [4], wherein the plurality of coloring compositions consist of less than 10 colors.
[6] A test in which the multicolored solid cosmetics rub the top surfaces of the first layer and the fifth layer of the layers whose thickness is divided into five equal parts with a wet urethane water-repellent treatment material under a load of 2.9 N. [1] to [5], wherein the color difference ΔE between the color of the cosmetic rubbed in the first layer and the color of the cosmetic rubbed in the fifth layer is 2.0 or less. Production method.
[7] The production method according to any one of [1] to [6], wherein the multicolor solid composition is an oil gel dosage form.
[8] The multicolored solid composition contains 3 to 15% by mass based on the total amount of cosmetics, whichever is selected from the group consisting of solid fats, semi-solid fats and oily gelling agents, according to [7]. Manufacturing method.

INDUSTRIAL APPLICABILITY The present invention provides a method for producing a multicolored solid cosmetic, in which the arrangement of the coloring compositions of each color constituting the multicolored solid cosmetic is maintained in the same manner in the vertical direction above and below. To. The multicolored solid cosmetics produced by the method of the present invention maintain the obtained color as they are used, and also maintain the effect of imparting a desired transparency and depth.

It is a schematic diagram which shows the schematic shape of three colors. (A: Appearance in which the three-color coloring composition is evenly arranged, B: Cross-sectional view 1 on the broken line a of B: A, Cross-sectional view 2 of C: A on the broken line ab, D: Three-color coloring composition. Figure) where the arrangement of is uneven It is a schematic diagram of the mode in which a plurality of coloring compositions are arranged in a checkered pattern. It is a graph which shows the relationship between the temperature change of each of the three color coloring compositions of Example 1 and a G ″ value. It is a graph which shows the relationship between the temperature change and the G ″ value of each of the three color coloring compositions of Example 2. It is a graph which shows the relationship between the temperature change and the G ″ value of each of the three color coloring compositions of Comparative Example 1. It is a graph which shows the relationship between the temperature change and the G ″ value of each of the three color coloring compositions of Comparative Example 2.

Hereinafter, specific embodiments of the present invention will be described.
In the multicolor solid cosmetic according to the present invention, a plurality of coloring compositions are regularly arranged or arranged at random to form a multicolor solid cosmetic. In the present specification, the arrangement direction of the plurality of coloring compositions is a direction in which the plurality of coloring compositions are applied to the skin via a medium or directly, and is usually a horizontal direction parallel to the opening surface of the container. Specifically, in the case of cake-type cosmetics, in the plane direction in which the tip slides to transfer the cosmetics onto the puff, and in the case of stick-type cosmetics, in the direction of the application plane to be applied to the skin. A plurality of coloring compositions are arranged.
Here, "solid" means that there is no fluidity at room temperature (25 ° C.).

The multicolor solid cosmetic is not particularly limited as long as it comprises a coloring composition of two or more colors, and may be two colors, three colors, four colors, or five or more colors. In some cases, 10 or more colors may be used, but if the number of colors of each coloring composition of the cosmetic is too large or too small, the sense of depth is lost and it can be recognized as a single color and flat. Therefore, it is preferably less than 10 colors.
The reason for this is that the skin color is not constant, and the brightness and hue vary depending on the location, and even in cosmetics, it is a collection of different colors, and the skin color is expressed by appropriately dispersing the colors, which is good. The present inventors consider that a great sense of depth was obtained.
In addition, the multicolored solid cosmetic according to the present invention preferably exhibits a skin color when applied to the skin.

The number (number of spots) of the plurality of coloring compositions arranged in the multicolor solid cosmetics is not particularly limited, but is usually more than or equal to the number of colors of the coloring composition and less than 100.

The multicolored solid cosmetic according to the present invention has uneven distribution of colors when applied, thereby exhibiting a good sense of transparency and depth. The uneven distribution of colors means that there is a large variation in the content area ratio (ratio of pigments in a certain area) contained in each of a plurality of coloring compositions when a cosmetic is applied.
The multicolored solid cosmetic according to the present invention has a plurality of coloring compositions on a flat surface on which the puff is slid, or on the applied flat surface when applied directly to the skin, and has a good transparency because it is not a single color. It presents a sense of depth.

Based on the above, the multicolor solid cosmetic according to the present invention is a multicolor solid cosmetic containing at least one advanced color and at least one receding color in a plurality of coloring compositions.

Advance color is a general term for colors that appear to stand out from the background color and appear to be close to each other, and is usually classified into reddish purple, red, reddish yellow, yellow, and yellowish green in the Mansell color system. Be selected. Generally, it is a color with high lightness and high saturation. Specifically, red, orange, yellow and the like are typical colors.
The receding color is a general term for colors that appear to be recessed from the background color, and is usually selected from the colors classified into green, bluish green, blue, bluish purple, and purple in the color system of Mansell. Generally, it is a color with low lightness and low saturation. Specifically, green, turquoise, blue, violet, purple and the like are typical colors.

In order for the multicolor solid cosmetic to exhibit a skin color on the skin, it is preferable to contain a black powder, but when the black powder is added to a coloring composition containing red, reddish yellow, and / or yellow, the appearance becomes dull. There is a tendency. Therefore, it is preferable that the black powder is not substantially blended in the coloring composition containing the advanced color. Note that "substantially not blended" is intended not to blend to the extent that the vividness of the coloring composition containing the advanced color is dull. For example, 0.8 mass of black powder is contained in the total amount of the coloring composition. % Or less, 0.5% by mass or less, 0.3% by mass or less, 0.1% by mass or less, 0.05% by mass or less. , 0.01% by mass or less.

On the other hand, even if the black powder is added to the coloring composition containing the receding color, the gorgeous appearance is not easily lost. Therefore, it is preferable to add the black powder to the coloring composition containing the receding color. In this case, the content of the black powder to be blended in the coloring composition containing blue, blue-green, and / or green is usually 0.05% by mass or more, preferably 0.1% by mass or more, based on the total amount of the coloring composition. It is usually 2.0% by mass or less, preferably 1.5% by mass or less.

The method for producing a multicolor solid cosmetic of the present invention includes a step of filling the plurality of colored compositions into a container such as a gold plate.
The temperature condition at the time of filling is 70 to 130 ° C., preferably 80 to 100 ° C., and more preferably 85 to 95 ° C. Usually, after filling, the mixture is cooled to room temperature to obtain a solid cosmetic.

In the present invention, each G'' (loss elastic modulus) at the temperature at the time of filling the plurality of coloring compositions.
The standard deviation of is 10 or less, preferably 8 or less, and more preferably 6 or less. Here, G'' is a value measured using a rheometer AR-G2 (manufactured by TA Instruments). The standard deviation refers to the degree of variation in the temperature at the time of filling each of the coloring compositions. If the temperature at the time of filling is 70 to 130 ° C., the plurality of coloring compositions may be different from each other or may be the same as long as the standard deviation is 10 or less.
In this way, by aligning the viscous properties of the plurality of coloring compositions, specifically, by reducing the variation of each G'' at the temperature at the time of filling, the coloring compositions of each color constituting the multicolor solid cosmetics Planar arrangements can form structures that are similarly maintained above and below the vertical.
Conventionally, in a method for producing a multicolor solid cosmetic, the composition is neatly filled in a container by making the viscosities of each coloring composition at the time of filling uniform (for example, JP-A-2002-154930). ). However, as shown in Examples described later, it may not be sufficient that the viscosities of the colored compositions at the time of filling are uniform. The inventors of the present application have found that a small variation in G ″ during filling of each coloring composition is a feature for achieving evenly arranged filling.

For example, to explain with reference to FIG. 1, in the case of a multicolor solid cosmetic formed by a three-color coloring composition as shown in FIG. 1A, it is preferable that the arrangement in the plane direction is evenly arranged. Further, it is preferable that the same arrangement as the appearance is maintained both above and below in the vertical direction as shown in FIG. 1B which is a cross-sectional view of the broken line a in FIG. 1A. According to the production method of the present invention, the boundary of each coloring composition is not disturbed in this way, and the intended arrangement is maintained above and below in the vertical direction.
If G'' of the plurality of coloring compositions does not satisfy the above range, even if the appearance of the arrangement in the plane direction is evenly arranged, the arrangement in the plane direction may differ between the upper side and the lower side in the vertical direction (FIG. 1C). The appearance of the arrangement in the plane direction may be uneven (Fig. 1D).

In the production method of the present invention, it is preferable that the plurality of coloring compositions are filled in a container at the same time. Here, "simultaneous" means that the start and end of filling the container have the same timing. More preferably, the filling rates of the plurality of coloring compositions are about the same.

In the case of the powder type (powder type) described later, it is usually prepared by a wet manufacturing method, and the coloring composition at the time of filling in a container contains a solvent. When the G ″ of the coloring composition containing the solvent is within the above range, the boundary between the plurality of coloring compositions is not disturbed, and the intended arrangement is maintained above and below in the vertical direction.

The shape of the plurality of coloring compositions in the arrangement surface direction is not particularly limited, and may be any of a round shape, a rectangular shape, a polygonal shape, an amorphous shape, a marble shape, and the like. From the viewpoint of design, it is preferable to have at least a part of the portion arranged in the marble shape. Further, these may be arranged regularly or at random. From the viewpoint of keeping the color of the cosmetics scraped off by the puff constant, a plurality of coloring compositions having substantially the same shape may be regularly arranged, and examples thereof include a checkered pattern (FIG. 2).

In the case of a cake type, the shape of the multicolor solid cosmetic according to the present invention is usually round or substantially rectangular in consideration of compact storage, but is not limited thereto. Here, the substantially rectangular shape means that the shape is close to the shape of a rectangle, but includes a shape having four rounded corners. The round shape has the advantage that the solid cosmetics can be used evenly until the end. Further, the thickness of the cake is not particularly limited, and may be usually 0.1 cm or more, 0.2 cm or more, and usually 2.5 cm or less, preferably about 1.0 cm or less. You can.
On the other hand, in the case of the stick type, it is usually stick-shaped, and its length and diameter are appropriately set.

The multicolor solid cosmetic according to the present invention is not particularly limited as long as it is solid, and may be a powder type (powder type) or an oil gel type.
In addition, examples of the multicolored solid cosmetics according to the present invention include foundations, face powders, concealers, cheek colors, eye colors, and the like, and are not particularly limited.

As described above, in the multicolor solid cosmetics produced by the production method of the present invention, the arrangement in the plane direction of the coloring composition of each color constituting the solid cosmetics is maintained in the same manner in the vertical direction above and below. There is. Therefore, even if the use of multicolor solid cosmetics progresses and the remaining amount of the cosmetics decreases, it is possible to continue to maintain and provide the same desired coating color as the initial one.

The fact that "the same desired application color as the initial color is maintained" is due to the small difference in the color of the application tool and the cosmetics transferred to the skin between the initial use and the advanced use of the cosmetics. You can check. More specifically, the multicolor solid cosmetic is divided into five equal layers, and the top surface of each of the uppermost layer (first layer) and the lowermost layer (fifth layer) is made of wet urethane repellent. It can be confirmed by a test of scraping the surface of a multicolor solid cosmetic with a load of 2.9 N with a cosmetic puff of a water-treated material having a size of 52 × 44 × 8.5 mm. Here, the "thickness" is the length of the cosmetic in the vertical direction, and the "layer" is the cosmetic divided in the horizontal direction.
In the test, the multicolor solid cosmetic according to the present invention has a color difference ΔE between the color of the cosmetic rubbed on the first layer and the color of the cosmetic rubbed on the fifth layer, preferably 2.0. It is less than or equal to, more preferably 1.5 or less, still more preferably 1.0 or less. The color difference ΔE is an index that numerically expresses the color difference when any two colors are expressed by the Lab value, and can be calculated by the following equation.
ΔE = [(ΔL ^* ) ² + (Δa ^* ) ² + (Δb ^* ) ² ] ^1/2
The number of times of scraping and measuring the color in each layer is preferably 10 times or more, more preferably 15 times or more, and it is preferable to use the average of the colors of each layer when calculating the color difference.

The wet urethane water-repellent treatment material, 52 x 44 x 8.5 mm size cosmetic puff, is a cosmetic puff that is popular in the market, and the load of 2.9 N when scraping the cosmetic is It is supposed to be the load normally applied when a woman scrapes cosmetics with a puff.
Further, for the color difference of the cosmetics, for example, using the puff used for scraping the cosmetics, the scraped cosmetics are applied on the acrylic white plate, and the decorative film on the acrylic white plate is used as a spectrocolorimeter (spectrophotometer). It can be measured by measuring the color with SD5000, D65 light source manufactured by Nippon Denshoku.

Hereinafter, the raw materials used for the multicolor solid cosmetics according to the present invention will be described.
1) Powder The powder that can be used in the multicolored solid cosmetics according to the present invention is an organic or inorganic solid that is insoluble in cosmetic raw materials such as water, fats and oils, surfactants, alcohols, and silicones. It means a general term for.
Specific examples of the powder include kaolin, talc, mica, serisite, titanium mica, laminated resin small pieces (glitter), Ca / Al borosilicate, titanium serisite, titanium dioxide, iron oxide, zinc oxide, ultramarine, dark blue, and so on. Red No. 102, Red No. 226, Yellow No. 4 Aluminum lake, silica, alumina, calcium silicate, magnesium silicate, calcium carbonate, magnesium carbonate, methylsiloxane reticulated polymer, crosslinked methylpolysiloxane resin, alkylacrylate resins, nylon , Silk, calcium or composite materials thereof and the like can be exemplified.
The shape of the powder may be spherical, amorphous, porous, hollow, fibrous, plate-like or lumpy. Further, the surface thereof may be subjected to a commonly known surface treatment such as a silicone coating treatment, a metal soap coating treatment, and an acylamino acid salt coating treatment.

Each coloring composition constituting the multicolor solid cosmetic according to the present invention preferably contains at least a pigment pigment. A desired coloring composition can be obtained by adjusting the type and blending amount of the pigment. On the other hand, a black powder is required in order to give a skin color when a multicolor solid cosmetic is applied to the skin. Examples of the black powder include black iron oxide, carbon black, titanium black and the like. Other colors are adjusted as appropriate, but are usually selected from colors such as red, red-yellow, yellow, blue, blue-green, and green in the Mansell color system.

The black powder may be prepared by itself as a coloring composition, but from the viewpoint of vividness of appearance, it is preferable that the black solid composition is not present. Usually, by mixing black powder with solid compositions of other colors, especially blue, blue-green, and green solid compositions in Mansell's color system, reduced color mixing is unlikely to occur.

In each coloring composition, only one type of powder may be blended, or two or more kinds may be blended in combination.
In the multicolor cosmetics according to the present invention, in the case of the powder type, the powder is usually 65% by mass or more, and 70% by mass or more in the multicolor solid cosmetics and / or the coloring composition. It is more preferably 75% by mass or more, and further preferably 80% by mass or more. Further, it is usually 95% by mass or less, preferably 90% by mass or less, and more preferably 85% by mass or less.
In the case of the oil gel type, it is usually 30% by mass or more, preferably 40% by mass or more in the multicolor solid cosmetics and / or the coloring composition. Further, it is usually 70% by mass or less, and preferably 60% by mass or less.

2) Oily component The multicolored solid cosmetic according to the present invention may contain an oily component.
Specific examples of the oily component include animal and vegetable oils such as macadamia nut oil, avocado oil, corn oil, olive oil, rapeseed oil, sesame oil, castor oil, saflower oil, cottonseed oil, jojoba oil, palm oil, palm oil, and liquid lanolin. Hydrocarbon oils such as liquid paraffin, squalane, and pristan; Liquid fatty acids such as oleic acid and isostearic acid; Liquid higher alcohols such as isostearyl alcohol and octyldodecanol; Cetyl isooctanoate, isopropyl myristate, hexyldecyl isostearate, adipine Diisopropyl acid acid, di-2-ethylhexyl sebatate, cetyl lactate, diisostearyl malate, ethylene glycol di-2-ethylhexaneate, neopentyl glycol dicaprate, glycerin di-2-heptyl undecanoate, tri-2-ethyl Glycerin hexanoate, cetyl ethylhexaneate, trimetylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate, pentaneyl erythrite tetra-2-ethylhexaneate, glyceryl triisostearate, glyceryl triisooctanate, etc. Synthetic ester oil; chain polysiloxanes such as dimethylpolysiloxane, methylphenylpolysiloxane, diphenylpolysiloxane; cyclic polysiloxanes such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexanesiloxane; amino-modified polysiloxane , Silicone oils such as modified polysiloxanes such as polyether-modified polysiloxanes, alkyl-modified polysiloxanes, and fluorine-modified polysiloxanes. However, those belonging to the specific surfactant group described later shall not be treated as oily components.

Only one type of oily component may be blended, or two or more kinds may be blended in combination.
When an oily component is blended in the multicolor solid cosmetic according to the present invention, in the case of a powder type, it is usually 5% by mass or more, preferably 10% by mass or more in the multicolor solid cosmetic. Further, it is usually 25% by mass or less, and preferably 20% by mass or less.
In the case of the oil gel type, the content of the oily component is usually 30% by mass or more, preferably 40% by mass or more in the multicolor solid cosmetics. Further, it is usually 70% by mass or less, and preferably 60% by mass or less.

Further, in the case of the oil gel type, it is preferable to contain a solid fat and / or a semi-solid fat as an oil component, and the content thereof is preferably 3% by mass or more, more preferably 5% by mass, and 20% of the whole composition. More preferably by mass% or more. Further, it is preferably 15% by mass or less, more preferably 12% by mass or less, and further preferably 10% by mass or less of the entire composition.

Here, the solid fat also includes a semi-solid fat. The solid means that there is no fluidity at 25 ° C, and the semi-solid means that there is almost no deformation in an environment where there is no stress at 1 atm and 20 ° C, but a slight stress (about 10 to 100 g / cm ² ) is applied. It means something that deforms when it is applied. Further, those having a melting point of 50 ° C. or higher are more preferable.
Examples of the solid fat and / or semi-solid fat include carnauba wax, mokuro, candelilla wax, rice bran wax, shea butter, African mango butter and the like as plant-derived ones, and beeswax, sherak wax, and Ibotaro as animal-derived ones. Etc., examples of petroleum-derived waxes include refined waxes such as paraffin wax and microcrystallin wax, and examples of mineral-derived waxes include refined waxes such as ozokelite, ceresin, and montan wax.

When the composition of the present invention is an oil gel dosage form, it is also preferable to contain an oil gelling agent in addition to or in place of the above-mentioned solid fat or semi-solid fat.
Here, the oil-based gelling agent refers to a gelling agent compatible with an oil-based component such as an oil agent, and is not particularly limited, but is limited to 12-hydroxystearic acid, dextrin palmitic acid, (palmitic acid / octanoic acid) dextrin, and dibutyl. Examples thereof include lauroyl glutamid and dimethicone crosspolymer.
The content of the oily gelling agent is preferably 0.5% by mass or more, more preferably 2% by mass or more, still more preferably 5% by mass or more of the entire composition. Further, it is preferably 10% by mass or less, more preferably 8% by mass or less, and further preferably 6% by mass or less of the entire composition.
In the preferred embodiment of the oil gel type, any one selected from the group consisting of solid fat, semi-solid fat and oily gelling agent is contained in an amount of 3 to 15% by mass based on the total amount of the cosmetic.

3) Other Ingredients In the multicolor solid cosmetics according to the present invention, ingredients usually used in solid cosmetics can be widely blended.

For example, examples of the active ingredient include a whitening ingredient, an anti-inflammatory ingredient, a plant extract and the like.
Examples of the surfactant include fatty acid surfactants (sodium laurate, sodium palmitate, etc.), anionic surfactants such as potassium lauryl sulfate and triethanolamine alkyl sulfate ether, stearyltrimethylammonium chloride, benzalkonium chloride, and lauryl. Cationic surfactants such as amine oxide,
Betaine-based surfactants (alkyl betaine, amide betaine, sulfobetaine, etc.), imidazoline-based amphoteric surfactants (2-cocoyl-2-imidazolinium hydroxide-1-carboxyethyroxy disodium salt, etc.), acylmethyltaurine Etc., Amphoteric surfactants, etc.
Polysorbate fatty acid esters (sorbitan monostearate, sorbitan sesquioleate, etc.), glycerin fatty acids (glycerin monostearate, etc.), propylene glycol fatty acid esters (propylene glycol monostearate, etc.), hardened castor oil derivative, glycerin alkyl ether , POE sorbitan fatty acid esters (POE sorbitan monooleate, polyoxyethylene sorbitan monostearate, etc.), POE sorbit fatty acid esters (POE-sorbit monolaurate, etc.), POE glycerin fatty acid esters (POE-glycerin monoisosteer, etc.) Rate, etc.), POE fatty acid esters (polysorbate glycol monooleate, POE distearate, etc.), POE alkyl ethers (POE2-octyldodecyl ether, etc.), POE alkylphenyl ethers (POE nonylphenyl ether, etc.), pluronic types, POE -POP alkyl ethers (POE / POP2-decyltetradecyl ether, etc.), tetronics, POE castor oil / cured castor oil derivatives (POE castor oil, POE cured castor oil, etc.), sucrose fatty acid esters, alkyl glucosides, etc. Non-ionic surfactants, etc. may be mentioned.

Polyhydric alcohols include polyethylene glycol, glycerin, 1,3-butylene glycol, erythritol, sorbitol, xylitol, martitol, propylene glycol, dipropylene glycol, diglycerin, isoprene glycol, 1,2-pentanediol, 2,4. -Hexylene glycol, 1,2-hexanediol, 1,2-octanediol and the like can be mentioned.

Thickeners include guagam, quince seed, carrageenan, galactan, arabic gum, pectin, mannan, starch, xanthan gum, curdlan, methylcellulose, hydroxyethylcellulose, carboxymethylcellulose, methylhydroxypropylcellulose, chondroitin sulfate, dermatane sulfate, glycogen, Heparan sulfate, hyaluronic acid, sodium hyaluronate, traganth gum, keratin sulfate, chondroitin, mucoitin sulfate, hydroxyethyl guagam, carboxymethyl gua gum, dextran, kerato sulphate, locust bean gum, succinoglucan, caronic acid, chitin, chitosan, carboxymethyl Examples thereof include chitin, agar, polyvinyl alcohol, polyvinylpyrrolidone, carboxyvinyl polymer, alkyl-modified carboxyvinyl polymer, sodium polyacrylate, polyethylene glycol, bentonite and the like.

Examples of UV absorbers include paraaminobenzoic acid-based UV absorbers, anthranilic acid-based UV absorbers, salicylic acid-based UV absorbers, cinnamic acid-based UV absorbers, benzophenone-based UV absorbers, sugar-based UV absorbers, 2- (2). Examples thereof include ultraviolet absorbers such as'-hydroxy-5'-t-octylphenyl) benzotriazole and 4-methoxy-4'-t-butyldibenzoylmethane.

Hereinafter, the present invention will be described in more detail by way of examples, but the technical scope of the present invention is not limited to the illustrated examples.

<Preparation of multicolor solid cosmetics>
According to the formulation shown in Table 1, a multicolor solid cosmetic consisting of a three-color coloring composition was prepared.
First, A was heated to 105 to 110 ° C. and stirred and mixed, adjusted to 85 to 90 ° C., and B was added and stirred and mixed to prepare a coloring composition of each color. The same amount of the three-color coloring composition was simultaneously poured into a circular gold plate having a diameter of 5 cm under 85 ° C. conditions to obtain a multicolored solid foundation classified into three colors as outlined in FIG. ..

The G'' and viscosity of the coloring composition of each color before filling were measured.
G'' was measured using a rheometer AR-G2 (manufactured by TA Instruments) under the following conditions.
Program: Temperature sweep Vibration stress: 30 Pa
Measurement temperature: 20 ° C to 150 ° C
Gap: 1000 μm
Table 2 shows the G'' value and standard deviation of the three-color coloring composition at 85 ° C. In addition, FIGS. 3 to 6 show G'' values at each temperature of the three-color coloring compositions of Examples 1 and 2 and Comparative Examples 1 and 2, respectively.

The viscosity was measured using a B-type viscometer Digital Viscometer VDA (manufactured by Shibaura System Co., Ltd.) under the following conditions.
Sensitive axis: No. 1 Measurement time: 1 minute Rotation speed: 6 rpm
Table 2 shows the G'' and viscosity of the three-color coloring composition at 85 ° C.

Skilled in the filling properties of each foundation in the examples and comparative examples in the container, and the beauty of the finish (transparency and depth) when the foundation is applied to the skin by taking it on a puff that has been wiped around in the horizontal direction. The evaluator evaluated it on a three-point scale (○: good, △: normal, ×: bad). The results are shown in Table 3.

In Examples 1 and 2, the three-color coloring composition was uniformly filled in both the horizontal direction and the vertical direction. In addition, when applied to the skin, a good sense of transparency and depth was obtained.
In Comparative Example 1, the viscosity of each coloring composition is about the same as that of Example 1, but the composition has a large variation in G ″. In Comparative Example 1, there were problems in the filling property of the composition and the finish at the time of coating, and in particular, uniform filling in the vertical direction could not be performed.
In Comparative Example 2, there were problems in the filling property of the composition and the finish at the time of application.

A scraping test was performed according to the following procedure, and the color difference was measured.
Two multicolored solid cosmetics of Examples or Comparative Examples were prepared, and each was divided into horizontal layers having a thickness of 5 equal parts (2 g x 5 layers for each layer). The top surface of each of the uppermost layer (first layer) and the lowermost layer (fifth layer) was scraped five times with a cosmetic puff (wet urethane water-repellent treatment material, 52 × 44 × 8.5 mm). By applying the cosmetics removed from the puff to the acrylic white plate one by one by scraping, and measuring the decorative film on the acrylic white plate with a spectrocolorimeter (Nippon Denshoku SD5000, D65 light source), The color (Lab value) was measured, and the average value of each of the first layer and the fifth layer and the color difference thereof were calculated.
Table 4 shows the average values and color differences of the first layer and the fifth layer of the multicolor solid cosmetics.
In Examples 1 and 2, the color difference between the first layer and the fifth layer is 1.0 or less, and it can be seen that the initial coating color is maintained even if the use of cosmetics progresses. In Comparative Examples 1 and 2, the color difference between the first layer and the fifth layer was large.

Claims (8)

A method for producing a multicolor solid cosmetic, wherein a plurality of coloring compositions have regularity in the plane direction or are arranged at random.
Including a step of filling a container with the plurality of coloring compositions under the condition of 70 to 130 ° C.
A production method in which the standard deviation of each G'' at the filling temperature of the plurality of coloring compositions is 10 or less. The production method according to claim 1, wherein the plurality of colored compositions are filled in a container at the same time. The production method according to claim 1 or 2, wherein the plurality of coloring compositions include a solid composition having at least one advanced color and a solid composition having at least one receding color. The advanced color is selected from the colors classified into red, reddish yellow, and yellow in the Mansell color system, and the receding color is a color classified into green, bluish green, and blue in the Mansell color system. The manufacturing method according to claim 3, which is selected from. The production method according to any one of claims 1 to 4, wherein the plurality of coloring compositions consist of less than 10 colors. In a test in which the top surfaces of the first layer and the fifth layer of the layer obtained by dividing the thickness of the multicolor solid cosmetic into five equal parts were rubbed with a wet urethane water-repellent material under a load of 2.9 N. The production method according to any one of claims 1 to 5, wherein the color difference ΔE between the color of the cosmetic rubbed in the first layer and the color of the cosmetic rubbed in the fifth layer is 2.0 or less. The production method according to any one of claims 1 to 6, wherein the multicolor solid composition is an oil gel dosage form. The production method according to claim 7, wherein the multicolor solid composition contains any one selected from the group consisting of solid fats, semi-solid fats and oily gelling agents in an amount of 3 to 15% by mass based on the total amount of cosmetics. ..

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