Transparent composition, preparation method thereof and cosmetic

Abstract

The invention discloses a transparentizing composition, a preparation method thereof and a cosmetic. The transparentizing composition comprises the following components in percentage by weight: 5-20% of a dye compound; 10 to 30 percent of glycerol; 20 to 70% of water; 0-5% of an emulsifier; 0-20% of a humectant; 0-2% of a preservative; and 0-2% of a stabilizer. The invention has the following beneficial effects: 1, a transparent optical regulation and control technology is applied to a cosmetic system, and high-refractive-index or high-absorption molecules which are safe to human bodies are introduced into a cosmetic formula, so that the synergistic and superimposed effects with existing functional components are realized; compared with a traditional cosmetic depending on a pigment or a single functional component, the technology of the invention can generate a transparent and transparent optical auxiliary effect after the cosmetic is applied to the skin, so that the visual expressive force of the cosmetic is remarkably improved.

Description

Technical Field

[0001] This invention belongs to the field of cosmetic technology, specifically relating to a transparent composition, its preparation method, and cosmetics. Background Technology

[0002] In optical imaging and cosmetic applications, the skin, due to its complex tissue structure, exhibits strong scattering and absorption, making it difficult for light to penetrate deeply and resulting in opacity. This not only limits the depth of medical imaging and diagnosis but also restricts the development of cosmetics in areas such as "transparent skin" and "radiant skin texture."

[0003] Existing methods mostly rely on removing the scattering source (such as degreasing, decalcification, dehydration, etc.), but these methods are irreversible and unsuitable for human cosmetic applications.

[0004] Current cosmetics typically rely on pigments or functional ingredients to achieve visual effects or skincare benefits, but they still have certain limitations in terms of skin optical performance. For example, traditional cosmetics cannot effectively reduce the multiple scattering of light between the skin and the outside world, making it difficult to achieve skin transparency and a sense of clarity, thus limiting the improvement of the product's visual appeal. Summary of the Invention

[0005] This invention provides a transparent composition, a method for preparing the same, and a cosmetic thereof, to solve the aforementioned problems existing in the prior art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A transparentizing composition comprising the following components by weight percentage: Dye compounds: 5~20%; Glycerin: 10~30%; Water: 20-70%; Emulsifier: 0~5%; Moisturizer: 0~20%; Preservatives: 0~2%; Stabilizer: 0~2%.

[0007] As a preferred embodiment, the transparentizing composition comprises the following components by weight percentage: Dye compounds: 5~20%; Glycerin: 10~30%; Water: 20-70%; Emulsifier: 0.5~5%; Moisturizer: 0.5~20%; Preservatives: 0.1~2%; Stabilizer: 0.1~2%.

[0008] As a preferred embodiment, after the dye compound is added to the transparentizing composition, the light transmittance of the transparentizing composition is not less than 20%.

[0009] As a preferred embodiment, the dye compound includes at least one of tartrazine, 4-aminoantipyrine, 4-hydroxyantipyrine, 4-cyanoantipyrine, methylene blue, and indocyanine green.

[0010] As a preferred embodiment, the emulsifier includes one or both of glyceryl stearate and lecithin.

[0011] As a preferred embodiment, the moisturizer includes at least one of hyaluronic acid, propylene glycol, and butylene glycol.

[0012] A method for preparing the aforementioned transparent composition includes the following steps: After mixing water and glycerin, the dye compound is slowly added and stirred at 25-40°C to dissolve. Then, one or more of the following are added: emulsifier, humectant, preservative and stabilizer. The mixture is dispersed evenly to obtain the transparent composition.

[0013] Add the dye slowly to ensure complete dissolution and a homogeneous system, avoiding localized high concentrations or clumping. It is generally recommended to add the dye gradually over several minutes to tens of minutes, stirring continuously to allow the dissolution process to proceed smoothly.

[0014] Use of a transparent composition as described above in cosmetics.

[0015] A cosmetic product comprising the aforementioned transparent composition.

[0016] A method for preparing a cosmetic as described above includes the following steps: The transparentizing composition is added to the matrix, dispersed evenly, and then homogenized and stabilized to obtain the cosmetic.

[0017] Stability adjustment mainly refers to adjusting the system through physical or chemical means after the formulation is completed, so that it remains stable during storage, transportation, and use, without stratification, flocculation, sedimentation, or color change, thereby extending the product's shelf life and maintaining transparency and visual appeal. Common methods include: 1) pH adjustment: Use an acid (such as citric acid) or a base (such as sodium hydroxide) to slowly adjust the pH and keep it within the range where the transparent composition is stable. Specifically, add the solution dropwise while stirring and monitor the pH in real time to ensure that the final pH range is between 5 and 7.

[0018] 2) Use a homogenizer or vacuum emulsifier to fully disperse the components and ensure uniform particle size through high-speed homogenization or emulsification equipment, preventing sedimentation and stratification. The rotation speed range is 3000~8000 rpm.

[0019] 3) Add stabilizers or chelating agents to prevent flocculation or precipitation caused by metal ions, such as using some EDTA.

[0020] 4) Antioxidant treatment: Add some antioxidants, such as vitamin E or sodium bisulfite, to reduce the oxidation of dye compounds and other active ingredients.

[0021] As a preferred embodiment, the matrix includes at least one of emulsion, serum, and mask essence.

[0022] This invention introduces highly absorbent and well-soluble molecular materials, utilizing their strong absorption properties in the ultraviolet to visible regions to significantly improve the effective refractive index of topical formulations, making them closer to the refractive index of skin tissue, thereby reducing light scattering caused by refractive index mismatch. This method can significantly increase the direct transmission ratio of incident light in the skin, giving the skin a stronger sense of "transparency" and "transparency." Compared with traditional irreversible methods that rely on degreasing, decalcification, or dehydration, this invention provides a gentle, reversible, and novel approach to achieving transparency suitable for cosmetic purposes.

[0023] Through reasonable selection and proportioning, the transparent formulation prepared by this invention exhibits excellent performance in both transparency enhancement and stability. For example, in the embodiments, light transmittance can be increased by approximately 20-25%, far exceeding the 5-8% improvement achievable without key components or by traditional methods. This invention not only achieves effective refractive index matching but also considers skin tolerance, possessing comprehensive advantages such as reversibility, high safety, simple process, and suitability for large-scale production.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention applies transparent optical modulation technology to cosmetic systems by introducing safe, high-refractive-index or high-absorption molecules into cosmetic formulations to achieve synergistic and additive effects with existing functional ingredients. Compared to traditional cosmetics that rely on pigments or single functional ingredients, the technology described in this invention can produce an optically assisted effect of transparency and translucency after cosmetics are applied to the skin, thereby significantly enhancing the visual appeal of cosmetics.

[0025] 2. Applicable to various cosmetic formulations, including but not limited to topical cosmetics (such as lotions, serums, and creams), facial masks, and other beauty products. By adding the transparent components of this invention to the basic formula of the aforementioned products, they can synergistically enhance existing functions (such as whitening, moisturizing, and repairing), thereby achieving a more layered and immediate visual effect and further improving the overall user experience. Therefore, this invention makes optical manipulation a novel auxiliary method in the cosmetics field. Attached Figure Description

[0026] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a comparison of the light transmittance of the transparent compositions obtained in Examples 1-2 and Comparative Examples 1-3 of the present invention. Detailed Implementation

[0027] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention. These all fall within the scope of protection of the present invention.

[0028] The transmittance of each embodiment in this invention was measured using a UV-Vis spectrophotometer.

[0029] Example 1 This embodiment provides a method for preparing a transparent composition, including the following steps: After mixing 20g of glycerin and 60g of water, slowly add 10g of lemon yellow and 10g of 4-aminotipyrine, stir at room temperature for 15 minutes, and after even dispersion, obtain a clear and transparent transparent composition.

[0030] Example 2 This embodiment provides a method for preparing a transparent composition, including the following steps: After mixing 30g of glycerin and 60g of water, slowly add 5g of lemon yellow and 5g of 4-aminotipyrine, stir at room temperature for 15 minutes, and after even dispersion, obtain a clear and transparent transparent composition.

[0031] Example 3 This embodiment provides a method for preparing a transparent composition, including the following steps: Mix 20g glycerol, 0.5g glyceryl stearate, and 59.5g water, then slowly add 10g lemon yellow and 10g methylene blue. Stir and dissolve at 25-40°C until evenly dispersed to obtain a clear and transparent transparent composition.

[0032] Example 4 This embodiment provides a method for preparing a transparent composition, including the following steps: Mix 20g glycerol, 0.5g glyceryl stearate, and 59.5g water, then slowly add 10g lemon yellow and 10g indocyanine green. Stir and dissolve at 25-40°C until evenly dispersed to obtain a clear and transparent transparent composition.

[0033] Example 5 This embodiment provides a method for preparing a transparent composition, including the following steps: After mixing 20g glycerol, 0.5g glyceryl stearate, 0.5g propylene glycol and 59g water, 10g lemon yellow and 10g 4-hydroxyantipyrine were slowly added. The mixture was stirred and dissolved at 25~40℃ and dispersed evenly to obtain a clear and transparent transparent composition.

[0034] The emulsifier includes one or both of glyceryl stearate and lecithin; the moisturizer includes at least one of hyaluronic acid, propylene glycol, and butylene glycol.

[0035] Example 6 This embodiment provides a method for preparing a cosmetic product, including the following steps: The transparent composition prepared in Example 1 was added to a cosmetic emulsion, and homogenization and stability were adjusted to obtain the cosmetic.

[0036] Comparative Example 1 The only difference between this comparative example and Example 1 is that tartrazine and 4-aminotipyrine were not added, and the amount of water added was 80g. The transmittance of the product obtained in this comparative example was significantly lower than that in Example 1.

[0037] Comparative Example 2 The only difference between this comparative example and Example 1 is that 50g of water and 30g of lemon yellow were added, and 4-aminotipyrine was not added. The product obtained in this comparative example was too dark in color and easily precipitated.

[0038] Comparative Example 3 The only difference between this comparative example and Example 1 is that tartrazine and 4-aminotipyrine were not added, the amount of water added was 95g, and the amount of glycerol added was 5g. The transmittance of the product obtained in this comparative example was significantly lower than that in Example 1.

[0039] Comparative Example 4 The only difference between this comparative example and Example 1 is that 4-aminotipyrine was not added. The product obtained in this comparative example had a transmittance of 12%, which was significantly lower than that of Example 1.

[0040] Comparative Example 5 The only difference between this comparative example and Example 1 is that lemon yellow was not added. The product obtained in this comparative example has a light transmittance of 8%, which is significantly lower than that of Example 1.

[0041] Examples 1 and 2 have reasonable formulation ratios, containing appropriate amounts of two dye compounds (such as tartrazine and 4-aminoantipyrine), which effectively reduce light scattering and significantly improve the system's transparency, resulting in the highest transmittance. Comparative Example 1, however, contains no dye compounds and only basic components, thus exhibiting the lowest transmittance. Comparative Example 2 has an excessively high content of a single dye, leading to an overly dark color and easy precipitation, thus reducing transmittance. Comparative Example 3 has an excessively low glycerol content, an excessively high water content, and lacks dye compounds, resulting in no refractive index adjustment and poor transparency. Comparative Examples 4 and 5 verify the synergistic effect of tartrazine and 4-aminoantipyrine. When 4-aminoantipyrine and tartrazine are added alone, the transmittance is 8% and 12%, respectively. When both are added together, the transmittance is 25%, greater than the sum of the 20% transmittance when each is added individually. This demonstrates a synergistic effect between tartrazine and 4-aminoantipyrine. Comprehensive comparison shows that an appropriate and reasonable ratio of dye compounds and glycerol is key to achieving transparency and improving transmittance.

[0042] The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the essence of the present invention.

Claims

1. A transparent composition, characterized in that, Includes the following components by weight percentage: Dye compounds: 5~20%; Glycerin: 10~30%; Water: 20-70%; Emulsifier: 0~5%; Moisturizer: 0~20%; Preservatives: 0~2%; Stabilizer: 0~2%.

2. The transparent composition according to claim 1, characterized in that, Includes the following components by weight percentage: Dye compounds: 5~20%; Glycerin: 10~30%; Water: 20-70%; Emulsifier: 0.5~5%; Moisturizer: 0.5~20%; Preservatives: 0.1~2%; Stabilizer: 0.1~2%.

3. The transparent composition according to claim 1 or 2, characterized in that, After the dye compound is added to the transparentizing composition, the light transmittance of the transparentizing composition is not less than 20%.

4. The transparent composition according to claim 3, characterized in that, The dye compound includes at least one of tartrazine, 4-aminoantipyrine, 4-hydroxyantipyrine, 4-cyanoantipyrine, methylene blue, and indocyanine green.

5. The transparent composition according to any one of claims 1 to 3, characterized in that, The emulsifier includes one or both of glyceryl stearate and lecithin; the moisturizer includes at least one of hyaluronic acid, propylene glycol, and butylene glycol.

6. A method for preparing a transparent composition according to any one of claims 1 to 5, characterized in that, Includes the following steps: After mixing water and glycerin, add the dye compound and stir to dissolve at 25-40°C. Add one or more of the following: emulsifier, humectant, preservative and stabilizer, and disperse evenly to obtain the transparent composition.

7. Use of the transparent composition as described in any one of claims 1 to 5 in cosmetics.

8. A cosmetic product, characterized in that, Includes the transparent composition according to any one of claims 1 to 5.

9. A method for preparing a cosmetic as described in claim 8, characterized in that, Includes the following steps: The transparentizing composition is added to the matrix, dispersed evenly, and then homogenized and stabilized to obtain the cosmetic.

10. The method for preparing the cosmetic as described in claim 9, characterized in that, The matrix includes at least one of emulsion, serum, and mask essence.

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