Novel cosmetic color material and use thereof

Abstract

The present invention relates to a novel cosmetic color material comprising a polyamide and / or polyurethane-based powder and a water-soluble dye, and the use thereof. The novel color material of the present invention can allow the use of a water-soluble dye in a water-free formulation, thereby expanding the range of use of a dye that has been limited, and has excellent reflectance and a characteristic of exhibiting fluorescence, and in this regard, can expand the color spectrum of a cosmetic color material that has been limited in the field of cosmetics.

Description

[0001] This application is a divisional application of the original application with international application number PCT / KR2018 / 012098, international filing date of 15 October 2018, Chinese national application number 201880067133.7, entered China on 15 April 2020, and the invention title of "New cosmetic color material and use thereof". TECHNICAL FIELD

[0002] The present invention relates to a new cosmetic color material and use thereof. BACKGROUND

[0003] Lip cosmetics such as lipsticks or lip glosses, and other cosmetic cosmetics such as blushes or eye shadows are cosmetics that can change the appearance impression of their users and exert important cosmetic effects, and their colors are one of the important factors in selecting products. Recently, cosmetic cosmetics that are bright in color and give a transparent impression, such as lipsticks that show high fluorescence, have been attracting attention.

[0004] Cosmetic cosmetics generally contain an oily base and a color material (colorant), but among them, the color material is responsible for color development when applied to the lips or skin.

[0005] Color materials contained in cosmetics include organic synthetic pigments (also known as tar pigments) and inorganic pigments, and organic synthetic pigments are classified into dyes and organic pigments. Among organic synthetic pigments, as dyes, water-soluble dyes and oil-dispersible dyes in the form of dispersion in oil are included, and organic pigments are lake pigments that make water-soluble or poorly soluble dyes insoluble.

[0006] Until now, the types of cosmetic pigments that can be used in anhydrous formulations have been very limited, so it has been difficult to achieve a wide range of colors in lip cosmetics such as lipsticks and lip glosses. In addition, water-soluble dyes have greater limitations when used in anhydrous formulations due to their properties.

[0007] In this regard, Korean Patent Publication No. 2017-0103966 discloses a cosmetic cosmetic that can show fluorescence, but it has the limitation that it can only improve the color sense of oil-dispersible dyes and cannot be applied to water-soluble dyes.

[0008] Therefore, there has been a constant need to develop a color material and a method for manufacturing the same, which can expand the color spectrum that cannot be expressed by conventional dyes by using a limited number of cosmetic pigments that can pass all global regulations. SUMMARY

[0009] TECHNICAL PROBLEM

[0010] To overcome the above-described limitations of the current color materials for cosmetic products, particularly the color in the anhydrous agent form, the present application provides a novel color material based on a water-soluble dye that can be used in a cosmetic product in the anhydrous agent form such as a lipstick or a lip gloss. In addition, a cosmetic composition containing the above-described novel color material and a lip cosmetic composition containing the same are provided.

[0011] Means for solving the problem

[0012] To achieve the object of the present application, the present application provides a color material, and a cosmetic composition containing the same.

[0013] Specifically, the present application provides a color material containing: one or more powders selected from the group consisting of a polyurethane powder and a polyamide powder having a weight average molecular weight of 200,000 or more; and a water-soluble dye of the following Structural Formula 1.

[0014] [Structural Formula 1]

[0015]

[0016] In the above-described Structural Formula 1, R1 is oxygen (O) or N(C2H5)2, n is 1 when R1 is oxygen, and n is 0 when R1 is N(C2H5)2; R2 and R3 are each independently hydrogen, bromine (Br), or iodine (I); R4 is COO - or SO3 - ; R5 is hydrogen, chlorine, or SO3 - , m is 0 when R5 is hydrogen or chlorine, m is 1 when R5 is SO3 - , and R6 is hydrogen or chlorine, and X is aluminum, calcium, sodium, or potassium.

[0017] In addition, the present application provides a cosmetic composition containing the above-described color material.

[0018] In addition, the present application provides a lip cosmetic composition containing the above-described color material.

[0019] Effects of the Invention

[0020] The color material of the present application containing a water-soluble dye; and a polyurethane or polyamide-based powder is a color material that exhibits a fluorescent color sense, while having a reflectance of 100 or more and exhibiting a very high new color sense in terms of chroma and lightness, and when the color material of the present application is used, a water-soluble dye that has not been used in the anhydrous agent form can be used in the anhydrous agent form, and thus a cosmetic composition having a color sense that cannot be achieved by a conventional oil-soluble dye or a lake pigment can be provided. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1is a photograph showing color difference of color materials prepared according to one embodiment of the present application and existing water-soluble dyes.

[0022] Figure 2a 、 2b , 2c and 2d are graphs showing results of fluorescence analysis of color materials prepared according to one embodiment of the present application and existing water-soluble dyes.

[0023] Figure 3a 、 3b , 3c and 3d are graphs showing results of analysis of reflectance characteristics of color materials prepared according to one embodiment of the present application and existing water-soluble dyes.

[0024] Figure 4 is a graph showing results of analysis of reflectance characteristics of comparative color materials prepared in one experimental example of the present application.

[0025] Figure 5a and Figure 5b is a photograph showing color difference of lipsticks prepared using color materials prepared according to one embodiment of the present application and lake pigments. DETAILED DESCRIPTION

[0026] The inventors of the present application have made continuous efforts in order to overcome the limitations of dyes that can be used in anhydrous formulations, in order to prepare color materials based on water-soluble dyes that can be used in anhydrous formulations, and as a result, it was confirmed that when color materials that simultaneously contain polyurethane powder and / or polyamide powder having a weight average molecular weight of 200,000 or more; and water-soluble dyes are used, fluorescence characteristics that have not been possessed by conventional water-soluble dyes are exhibited, and at the same time, excellent dispersibility in anhydrous formulations is also exhibited, and thus the color materials can also be applied to cosmetic products in anhydrous formulations, thereby completing the present application. When the color materials of the present application are used, water-soluble dyes that have not been used in anhydrous formulations can be used in anhydrous formulations, and fluorescence characteristics that have not been obtained in conventional dyes can be obtained, and compared to conventional lake pigments, vivid colors having high chroma and lightness can be exhibited, thereby having the advantages of improving the color sense of cosmetic makeup and being able to expand the color range that can be achieved.

[0027] Hereinafter, the present application will be described in more detail.

[0028] However, the present application can be modified in various ways and can have various forms, but the specific embodiments and explanations described below are only for the purpose of helping to understand the present application, and are not intended to limit the present application to specific disclosed forms. It should be understood that the scope of the present application includes all modifications, equivalents, and alternatives covered within the idea and technical scope of the present application.

[0029] The present invention relates to a color material comprising a polyurethane powder and / or a polyamide powder having a weight average molecular weight of 200,000 or more; and a water-soluble dye.

[0030] The present invention can provide a cosmetic material that exhibits a color showing an extended color spectrum that has not been shown in a water-free formulation to date, by using the above color material in a water-free formulation, and in this regard, the above color material can be a cosmetic color material.

[0031] The color material of the present invention can have a reflectance of 100 or more. The above reflectance is a value that measures the degree to which the color material reflects light according to wavelength. If the reflectance exceeds 100, it means that more light is reflected than received, and a color material having a reflectance of 100 or more can exhibit a more vivid color, and in this regard, is more suitable for use in a cosmetic material. In one embodiment of the present invention, it was confirmed that the color material of the present invention has a reflectance of more than 100 at a wavelength of 600 nm to 620 nm.

[0032] In addition, the color material of the present invention can have a characteristic of exhibiting fluorescence.

[0033] The color material of the present invention can be in the form in which a polyurethane powder and / or a polyamide powder having a weight average molecular weight of 200,000 or more and a water-soluble dye are combined, and can be in the form in which the surface of a polyurethane powder and / or a polyamide powder having a weight average molecular weight of 200,000 or more is coated with a water-soluble dye. Compared to the case in which only the above powder and water-soluble dye are included, a cosmetic composition including the color material of the present invention in which the surface of the powder is combined with a water-soluble dye can have a higher reflectance, have a characteristic of exhibiting fluorescence, and have an effect of uniformly dispersing the color material even in a cosmetic material in a water-free formulation.

[0034] In the present invention, the water-soluble dye refers to a dye having a characteristic of being soluble in a water-soluble solvent among dyes that can be used in a cosmetic material, and refers to a dye having a water-decomposable characteristic among dyes that are regulated by the Korea Food and Drug Administration, etc. as dyes that can be used in a cosmetic material.

[0035] Preferably, the water-soluble dye of the present invention can have the following Structural Formula 1. The compound of Structural Formula 1 can be a salt compound.

[0036] [Structural Formula 1]

[0037]

[0038] In the above Structural Formula 1, R1 is oxygen (O) or N(C2H5)2, n is 1 when R1 is oxygen, and n is 0 when R1 is N(C2H5)2; R2 and R3 are each independently hydrogen, bromine (Br), or iodine (I); R4 is COO - or SO3 - ; R5 is hydrogen, chlorine, or SO3- When R5 is hydrogen or chlorine, m is 0, and when R5 is SO3 - , m is 1; R6 is hydrogen or chlorine, and X is aluminum, calcium, sodium or potassium.

[0039] In the above Structural Formula 1, when R1 is oxygen (O), R4 can be COO - , and R5 can be hydrogen or chlorine. Also, in this case, one of the two R1 in the above Structural Formula 1 can represent O - in the ionic form.

[0040] Also, in the above Structural Formula 1, when R1 is N(C2H5)2, R4 and R5 can be SO3 - . Also, in this case, one of the two R1 in the above Structural Formula 1 can represent N(C2H5)2 + in the ionic form. In the color material of the present application, the water-soluble dye having the structure of the above Structural Formula 1 can be combined with the polyurethane powder and / or the polyamide powder to form a new color material, and the above color material can exhibit a color having a significantly improved characteristic of the color possessed by the conventional water-soluble dye, and even compared with the conventional color lake pigment, can provide a color material exhibiting a color having excellent lightness and chroma when contained in a cosmetic. In particular, it has excellent dispersibility even in a water-free agent type, and thus can be effectively used in a cosmetic composition, particularly in a water-free agent type such as a lipstick, and expands the color spectrum of the color that can be exerted in the conventional water-free agent type, and thus is of great significance in this respect.

[0041] The above water-soluble dye can preferably be one or more selected from the group consisting of Red No. 104 (1), Red No. 104 (2), Red No. 103 (1), Red No. 230 (2), Orange No. 207, Red No. 106, Yellow No. 202 (1) and Yellow No. 202 (2).

[0042] The above Red No. 104 (1) is a disodium salt of 9-(3,4,5,6-tetrachloro-2-carboxyphenyl)-6-hydroxy-2,4,5,7-tetrabromo-3H-xanthen-3-one, and can be represented by the following Chemical Formula 1.

[0043] [Chemical Formula 1]

[0044]

[0045] The above Red No. 104 (2) is a dipotassium salt of 9-(3,4,5,6-tetrachloro-2-carboxyphenyl)-6-hydroxy-2,4,5,7-tetrabromo-3H-xanthen-3-one, and can be represented by the following Chemical Formula 2.

[0046] [Chemical Formula 2]

[0047]

[0048] The above-mentioned Red No. 103 (1) is a disodium salt of 9-(2-carboxyphenyl)-6-hydroxy-2, 4, 5, 7-tetrabromo-3H-xanthene-3-one, and can be represented by the following Chemical Formula 3.

[0049] [Chemical Formula 3]

[0050]

[0051] The above-mentioned Red No. 230 (2) is a dipotassium salt of 9-(2-carboxyphenyl)-6-hydroxy-2, 4, 5, 7-tetrabromo-3H-xanthene-3-one, and can be represented by the following Chemical Formula 4.

[0052] [Chemical Formula 4]

[0053]

[0054] The above-mentioned Orange No. 207 is a disodium salt of 9-(2-carboxyphenyl)-6-hydroxy-4, 5-diiodo-3H-xanthene-3-one, and can be represented by the following Chemical Formula 5.

[0055] [Chemical Formula 5]

[0056]

[0057] The above-mentioned Red No. 106 is a monosodium salt of 2-[[N, N-diethyl-6-(diethylamino)-3H-xanthene-3-imino]-9-yl]-5-sulfobenzenesulfonate, and can be represented by the following Chemical Formula 6. The above-mentioned Red No. 106 is also called Acid Red No. 52.

[0058] [Chemical Formula 6]

[0059]

[0060] The above-mentioned Yellow No. 202 (1) is a disodium salt of 9-(2-carboxyphenyl)-6-hydroxy-3H-xanthene-3-one, and can be represented by the following Chemical Formula 7.

[0061] [Chemical Formula 7]

[0062]

[0063] The above-mentioned Yellow No. 202 (2) is a dipotassium salt of 9-o-carboxyphenyl-6-hydroxy-3-isoxanthone, and can be represented by the following Chemical Formula 8.

[0064] [Chemical Formula 8]

[0065]

[0066] The water-soluble dye of the present application contains the above structural formula 1 as a common characteristic, and thus, although it is a water-soluble dye, it is combined with a polyurethane powder and / or a polyamide powder, and thus, can have the characteristics of a color material that exhibits fluorescence.

[0067] In the present application, the powder refers to an object in which solid particles or solid microparticles are in an aggregated state, and can be used in mixture with a powder or a powder, etc. commonly used in the technical field of the present application.

[0068] In the present application, the polyurethane powder includes all polyurethane-based powders, and can be an isocyanate group / OH group-based polymer.

[0069] As a more specific example, it can be one powder selected from the group consisting of hexamethylene diisocyanate (HDI) / trimethylol hexyllactone crosspolymer; and hexamethylene diisocyanate (HDI) / polypropylene glycol (PPG) / polycaprolactone crosspolymer, but is not limited thereto.

[0070] In consideration of the physical properties of the added composition, convenience in use, etc., the above polyurethane powder can further include organic / inorganic particles such as silica or polymethylsilsesquioxane, within a range that does not affect the properties of the polyurethane powder.

[0071] In addition, for the above polyurethane powder, commercially sold ones are also included in the present application, and for example, it can be D-400 (Toshiki), EPU-2X (hexamethylene diisocyanate / trimethylol hexyllactone crosspolymer & polymethyl methacrylate, silica, SUNJIN BEAUTY SCIENCE), or KSP-101 (SHINETSU), etc., but is not limited thereto.

[0072] The weight average molecular weight of the above polyurethane powder can be 5,000 to 300,000, and preferably, can be 7,000 to 100,000. When the above particle size is satisfied, a color material having a reflectance of 100 or more, high lightness and chroma, and a fluorescence exhibiting characteristic can be provided.

[0073] Further, the average particle size of the polyurethane powder described above can be 5 to 30 μm, and preferably can be 10 to 20 μm. When the particle size described above is satisfied, a color material having a reflectance of 100 or more and having a fluorescent appearance characteristic can be provided.

[0074] In the present application, the weight average molecular weight of the polyamide powder can be 200,000 or more. If the molecular weight described above is less than 200,000, when reacted with the water-soluble dye of the present application, its excellence in reflectance is reduced. Further, the polyamide powder of the present application has a low oil absorption capacity by the high molecular weight of 200,000 or more, and thus reduces the thickening effect of the composition, and when included in the cosmetic composition, has an effect of improving the gloss feeling of the cosmetic. Also, a color material of high molecular weight can be used, and thus, when preparing a cosmetic, has an effect of being easily adjusted and making the preparation process including dispersion easy.

[0075] The polyamide powder described above can use a nylon powder, and can be one or more selected from the group consisting of nylon-6, nylon-11, nylon-12, nylon-66, and copolymers thereof, but if the condition of the weight average molecular weight described above is satisfied, the type of the nylon described above is not limited. As an example, the copolymer described above can be a copolymer of nylon-6 and 12, but is not limited thereto.

[0076] The color material of the present application preferably can include the water-soluble dye described above; and the polyurethane powder. The color material of the present application including the water-soluble dye and the polyurethane powder at the same time has a very high reflectance, and thus when included in a cosmetic, can have more excellent appearance characteristics, and at the same time, can provide a color material having a fluorescent characteristic.

[0077] The color material of the present application preferably can include the water-soluble dye described above; and the polyamide powder having a weight average molecular weight of 200,000 or more. The color material of the present application including the water-soluble dye and the polyamide powder having a weight average molecular weight of 200,000 or more can reduce the thickening effect of the composition due to a low oil absorption capacity, and when included in a cosmetic, can provide a color material improving the gloss feeling, and thus is excellent in this respect.

[0078] In the color material of the present application, the content of the powder described above with respect to the total weight is preferably 80 to 99.99 wt%, and more preferably can be 90 to 99.9 wt%, and most preferably can be 95 to 99.9 wt%. When the content of the powder exceeds 99.99 wt%, the color intensity of the color material is relatively reduced, and when the content of the powder is less than 80 wt%, it is difficult to use the color material in a cosmetic composition of a water-free agent type, and the difference in color feeling is reduced.

[0079] In the color material of the present application, the content of the above water-soluble dye is preferably 0.01 to 20% by weight, more preferably 0.1 to 10% by weight, and most preferably 0.1 to 5% by weight, with respect to the total weight of the color material. When the content of the dye is less than 0.01% by weight, the color developing power is reduced, so it is difficult to use an appropriate amount in preparing a cosmetic composition for use, and when it exceeds 20% by weight, it is difficult to use in a water-free agent form and the difference in color sense from the conventional dye possessed by the color material of the present application is reduced.

[0080] The color material of the present application expands the color spectrum of the color that can be used in a cosmetic composition, and is excellent in this respect, and the present application relates to a cosmetic composition comprising the above color material.

[0081] Preferably, the above cosmetic composition can be a cosmetic composition in a water-free agent form. Furthermore, the above cosmetic composition comprises a color material, and can be a cosmetic or lip cosmetic composition in this respect. In the case of a cosmetic composition comprising the color material of the present application, the color material of the present application has excellent reflectance and has the property of developing a fluorescent color sense, so it has the advantage that the lightness and chroma of the cosmetic composition are higher than in the case of using the conventional color lake-based color material. Therefore, the cosmetic composition comprising the color material of the present application can exhibit excellent color development in eye, lip or other makeup products.

[0082] In the cosmetic composition of the present application, the content of the above color material can be 0.1 to 50% by weight, and the content of the above color material can vary depending on the specific use of the above cosmetic composition. As an example, when the above cosmetic composition is a lip composition, the content of the color material of the present application can be 5 to 50% by weight, or 15 to 35% by weight.

[0083] In addition to the above ingredients, the cosmetic composition of the present application can generally comprise any one or more of the oil and fat ingredients, humectants, softening agents, surfactants, organic and inorganic pigments, organic powders, ultraviolet absorbers, preservatives, thickening agents, bactericides, antioxidants, plant extracts, pH adjustors, alcohols, pigments, fragrances, blood circulation promoters, cold agents, and waxes that can be included in a cosmetic composition, but is not limited thereto.

[0084] In particular, when the cosmetic composition of the present application is a lip cosmetic composition, it can further comprise one or more selected from the group consisting of waxes, oils, pigments, and other additives.

[0085] As the above wax, candelilla wax, carnauba wax, ozokerite wax, paraffin wax, cocoa butter, polyethylene, microcrystalline wax, ceresin wax, beeswax, and synthetic wax, etc. are included, but are not limited thereto. In the lip composition of the present application, the content of the above wax can be 3 to 20% by weight, but is not limited thereto.

[0086] As the above oil component, there are included mineral oil such as mineral oil; animal oil such as squalene, lanolin, and the like; vegetable oil such as sunflower seed oil, avocado oil, jojoba oil, olive oil, and castor oil; diphenylsilyloxyphenyl trimethicone, isopropyl myristate, isopropyl palmitate, cetyl ethylhexanoate, cetyl myristate, polybutene, polyisobutylene, hydrogenated polyisobutylene, various polyols, glycerin tri-2-ethylhexanoate, triglyceride oil, octyldodecanol, and diisostearyl malate, and the like, but not limited thereto.

[0087] On the other hand, in the present application, as other components which can be used in the cosmetic composition, particularly, the lip cosmetic composition, a conditioning agent, an oily raw material, a humectant, an antioxidant, an ultraviolet absorber, a preservative, or a perfume, and the like can be further added within a range not impairing the effects of the present application.

[0088] The cosmetic composition, particularly, the lip cosmetic composition having the above composition can be prepared for the lip cosmetic composition for preparing a lipstick, a lip gloss, a lip balm, or a lip pencil, and the like, according to a general preparation method, by a process of heating, mixing, stirring, and the like.

[0089] The present application can also provide a method of preparing a lip cosmetic by mixing one or more powders selected from the group consisting of a polyurethane powder and a polyamide powder having a weight average molecular weight of 200,000 or more; and a water-soluble dye to prepare a color material; and adding the above color material to a cosmetic composition.

[0090] The color material prepared by mixing one or more powders selected from the group consisting of a polyurethane powder and a polyamide powder having a weight average molecular weight of 200,000 or more; and a water-soluble dye in the present application has excellent dispersibility even in a water-free formulation, particularly, has excellent fluorescent properties which cannot be achieved by conventional dyes, and thus a cosmetic having excellent color and appearance can be prepared.

[0091] In the method of preparing a lip cosmetic of the present application, when the above polyamide powder is 200,000 or more, the oil absorption capacity is low, and thus the thickening effect of the composition is reduced, and thus has an effect of improving the gloss in the lip cosmetic. In addition, it is easily dispersed, and thus the preparation efficiency of the cosmetic can be improved.

[0092] Hereinafter, the present application will be described in detail through preparation examples and experimental examples. The following examples and experimental examples are only for illustrating the present application, and the scope of the present application is not limited thereto.

[0093] [Preparation Example 1] Preparation of a color material

[0094] Preparation Example 1-1. Preparation of a color material using a powder

[0095] Pure water and ethanol were used as solvents to dissolve the dye among water-soluble dyes. Nylon-12 (ANYBES, average particle size 6 to 9 μm, molecular weight 300,000, (SH Energy Chemical Co., Ltd.) was put into the above-mentioned dissolved matter as a polyamide-based powder; HDI / trimethylol hexyl lactone cross-linked polymer of urethane series, silica (TOSHIKI Co., Ltd.; Plastic Powder D-400; average particle size: 12 to 18 μm; molecular weight: 10,000 or more, Table 1); or silica (SUNJIN Chemical; SUNSIL-130; average particle size: 7 μm, Table 2) as a polyurethane-based powder, and a dispersion mixer (Dispermixer) was used to stir at 1000 rpm for 10 minutes while performing a mixing reaction. The mixing ratio of Red No. 104 (1) or Red No. 103 (1) as a water-soluble dye and the powder was as shown in Table 1. Thereafter, the solvent was evaporated to obtain a color material.

[0096] [Table 1]

[0097]

[0098] [Table 2]

[0099] Ingredients (wt%) Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Silica - - 99.0 99.0 Red 104 (1) 100.0 - 1.0 - Red 103 (1) - 100.0 - 1.0 Total 100 100 100 100

[0100] Preparation Example 1-2. Preparation of a color material containing Red No. 227

[0101] A color material containing Red No. 227 dye was prepared using nylon-12, a polyurethane-based powder, or silica in the same manner as in Example 1-1, except that Red No. 227 was used as a water-soluble dye.

[0102] [Red No. 227]

[0103]

[0104] [Table 3]

[0105] Ingredients Comparative Example 5 Comparative Example 6 Comparative Example 7 HDI / trimethylol hexyl lactone crosspolymer, silica 99.0 - - Nylon-12 - 99.0 - Silica 99.0 Red 227 1.0 1.0 1.0 Total 100 100 100

[0106] [Experimental Example 1] Confirmation of properties of a new color material

[0107] To confirm the characteristics of the color materials prepared according to Preparation Examples 1-1, the color difference between the water-soluble dye (Red 104 (1)) of Comparative Example 1 and the color material of Example 1 (polyamide powder with a molecular weight of 300,000 + Red 104 (1)) and the color material of Example 3 (polyurethane powder + Red 104 (1)) was compared and confirmed by visual inspection. The color difference between Comparative Example 2 (Red 103 (1)) and the color material of Example 2 (polyamide powder with a molecular weight of 300,000 + Red 103 (1)) and the color material of Example 4 (polyurethane powder + Red 103 (1)) was also compared and confirmed using the same method. This is shown in the figure. Figure 1 middle.

[0108] like Figure 1 As shown, it can be seen that the color materials of Examples 1 to 4 of the present invention and the conventional water-soluble dyes of Comparative Examples 1 or 2 also show a large color difference to the naked eye, especially the fluorescent color sensation observed only in the color materials of Examples 1 to 4 of the present invention.

[0109] In addition, the fluorescence of the respective colorants in Comparative Examples 1 and 2, as well as Examples 3 and 4, was analyzed using a time-resolved fluorescence spectrophotometer. For each treated region, excitation was performed at 500 nm, and the intensity of light was measured in the visible light region.

[0110] The result, such as Figures 2a to 2d As shown in the figure, it can be confirmed that the color materials of Example 3 and Example 4 emit light when 500nm light is applied. In contrast, no light other than that applied by the light source was observed in Comparative Examples 1 and 2. Therefore, it can be seen that, unlike Comparative Example 1 (Red 104 (1)) or Comparative Example 2 (Red 103 (1)), Examples 3 and 4 have the characteristics of fluorescent color materials that emit light by receiving light energy.

[0111] [Experimental Example 2] Analyze the reflectance of dyes

[0112] Since the fluorescence sensitivity of a colorant can be confirmed by measuring the reflectance of light according to wavelength, a MINOLTA CM512M3 colorimeter was used to measure the reflectance of light according to wavelength for the respective dyes of Examples 1 to 9 and Comparative Examples 1 to 4. Specifically, the reflectance was measured at around 600 nm or 620 nm, as shown in Table 4 below.

[0113] [Table 4]

[0114]

[0115] [Table 5]

[0116] Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 Comparative Example 7 Reflectance 28 (620 nm) 15 (600 nm) 85 (620 nm) 70 (600 nm) 44 (620 nm) 42 (620 nm) 42 (620 nm)

[0117] The result, such as Figures 3a to 3d As shown, it was confirmed that the conventional water-soluble dyes of Comparative Examples 1 or 2, which were not modified with powder, had a reflectance of less than 100 in all ranges, and the colorants of Comparative Examples 3 or 4, which contained silica, also had a reflectance of less than 100, thus lacking the reflectance characteristics required in this invention. However, the colorants of Examples 1 to 9 all exhibited reflectances of over 100 near approximately 620 nm and 600 nm, meaning that they reflected more light than received, thus implying that they were all fluorescent colorants. In particular, it was confirmed that the colorants of Examples 3 or 4, modified with polyurethane-based powders, could be prepared with superior reflectance under the same conditions compared to the case using polyamide colorants. This also shows the same tendency when using the colorants of this invention to prepare lipsticks.

[0118] Furthermore, as shown in Table 5 or Figure 4 As shown, for the case of the color material containing red 227, even if modified in the same way, the reflectance is less than 100, and the results confirmed by the naked eye also show that it does not exhibit the characteristics of a fluorescent color material. Thus, it can be seen that only for dyes that satisfy part of the structure of Formula 1 of the present invention can the effect of modifying the powder of the present invention to exhibit the characteristics of a fluorescent color material be obtained.

[0119] [Preparation Example 2] Preparation of anhydrous cosmetic formulations

[0120] The colorants of Examples 1 to 4 were confirmed to have the characteristics of fluorescent colorants. To confirm whether the above colorants could also be used in anhydrous formulations, lipsticks were prepared using the colorants of Examples 3 and 4. To compare the color display characteristics in anhydrous formulations, lipsticks were prepared using lake pigments Red28 Lake and Red22 Lake, which are respectively for water-soluble dyes Red 104 (1) and Red 103 (1).

[0121] The wax and oil components shown in Table 6 were heated to melt the wax and mixed using a dispersant mixer at 1000 rpm for 10 minutes. Then, the pigments were added separately, and the mixture was further stirred using a dispersant mixer at 1000 rpm for 10 minutes. After degassing, the mixture was poured into a lipstick mold and cooled to complete the lipstick. The polyurethane powder (HDI / trimethylolhexyl lactone crosspolymer, silica) was prepared under the same conditions as in Example 1-1.

[0122] [Table 6]

[0123]

[0124] like Figure 5a and5b As shown, in the case of using the conventional lake pigment in the anhydrous formulation such as Comparative Examples 8 and 9, and the case of using the color material of Example 3 or 4 of the present application (Preparation Examples 1 and 2), the difference in color can be observed with the naked eye in the prepared lipsticks, and in particular, in the case of Comparative Examples 8 and 9, even though HDI / trihydroxymethylhexyl lactone cross-linked polymer, silica as a polyurethane powder are contained in the cosmetic composition, the color difference from the respective lipsticks of Examples 10 and 11 is very clear. This means that the color development properties of the surface-modified color material of the present application are not exhibited by the simple mixture of the polyamide or polyurethane powder and the dye.

[0125] [Preparation Example 3] Preparation of cosmetic composition

[0126] The kind of dye used when preparing various cosmetic pigments and the ratio thereof were changed, and thus cosmetic color materials were prepared in five identical methods. The cosmetic compositions corresponding to Comparative Examples (conventional lake pigments, indicated as "unmodified" in Table 7) and Examples (new type color material of the present application modified with polyurethane powder according to Preparation Example 1-1, indicated as "modified" in Table 7) were prepared in the same method as described above, and the lightness and chroma of the compositions were compared under five conditions. The following table is the value of the Munsell color system, and is a value obtained by measurement with a MINOLTA CM512M3 color difference meter.

[0127] [Table 7]

[0128]

[0129] The pigment content used in Samples 1 to 5 of Table 7 above was all identical, and as shown in Table 7 above, it can be confirmed that the lightness and chroma of the cosmetic composition containing the new type cosmetic color material of the present application are increased compared to the case of containing the conventional lake pigment. Therefore, in the case of the cosmetic composition containing the color material of the present application, a cosmetic composition having more brilliant and excellent color development properties can be provided.

Claims

1. A lip cosmetic composition comprising: a wax, and a color material comprising: a polyamide powder having a weight average molecular weight of 200,000 or more; and a water-soluble dye represented by the following Structural Formula 1: [Structural Formula 1] wherein, R1 is oxygen (O) or N(C2H5)2, wherein n is 1 when R1 is oxygen, and n is 0 when R1 is N(C2H5)2; R2 and R3 are each independently hydrogen, bromine (Br), or iodine (I); R4 is COO - or SO3 - ; R5is hydrogen, chloro or SO3 - wherein m is 0 when R5is hydrogen or chloro, and m is 1 when R5is SO3 - ; R6 is hydrogen or chlorine; and X is aluminum, calcium, sodium, or potassium; wherein the polyamide powder is coated with the water-soluble dye, and wherein the color material has a reflectance of greater than 100.

2. The lip cosmetic composition according to claim 1, wherein The polyamide includes one or more selected from the group consisting of nylon-6, nylon-11, nylon-12, nylon-66, and copolymers thereof.

3. The lip cosmetic composition according to claim 1, wherein The water-soluble dye includes one or more selected from the group consisting of Red No. 104-1, Red No. 104-2, Red No. 103-1, Red No. 230-2, Orange No. 207, Red No. 106, Yellow No. 202-1, and Yellow No. 202-2.

4. The lip cosmetic composition according to claim 1, wherein The content of the water-soluble dye is 0.1 to 5% by weight based on the total weight of the color material, and The content of the color material is 15 to 50% by weight based on the total weight of the composition.

5. The lip cosmetic composition according to claim 1, wherein The cosmetic composition is in a water-free dosage form.

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