High-retention color lip gloss capable of being quickly colored and preparation method thereof

Abstract

The application discloses a high-color-retention lip gloss capable of being quickly colored, which comprises microcapsule-encapsulated pigments, moisturizing factors and persistent components, the microcapsules have a multilayer structure, the outer layer is a polymer material, the intermediate layer is an encapsulation layer of the moisturizing factors and the persistent components, and the inner layer is an encapsulation layer of the pigments, wherein the material of the outer layer comprises polyvinyl alcohol, polyurethane and polyacrylic acid, the material of the intermediate layer comprises the moisturizing factors and the persistent components, and the material of the inner layer is the pigments and a carrier material; the high-color-retention lip gloss capable of being quickly colored effectively solves technical problems of the lip gloss in aspects of quick coloring, persistence, comfort, moisturizing property and the like, and improves the overall performance and use experience of the lip gloss.

Description

Technical Field

[0001] This invention relates to a lip gloss with high color retention that can be applied quickly and its preparation method. Background Technology

[0002] With the continuous development of the modern cosmetics industry, lip gloss, as a common makeup product, has become an important choice for many people's daily makeup routine. Lip gloss not only adds color to the lips but also provides moisturizing and hydrating effects, satisfying consumers' dual needs for makeup and skincare benefits. However, existing lip gloss products still have some technical shortcomings in terms of user experience and staying power, specifically in the following aspects:

[0003] Traditional lip glosses have a slow color-glossing speed, requiring multiple applications to achieve the desired color saturation. Furthermore, the uneven distribution of pigments can easily result in patches or uneven coloring on the lips, affecting the overall aesthetics and natural look.

[0004] Although many lip gloss products claim to have long-lasting effects, in actual use, the color of many products will fade or come off in a short time, especially after eating, drinking, talking, etc., when the pigment is easily removed from the lips, resulting in poor color retention and affecting the lip makeup effect.

[0005] Many lip glosses can cause dryness, peeling, or tightness in the lips after use, especially with prolonged use, as their moisturizing effect often fails to be maintained. Traditional lip glosses primarily focus on color performance, neglecting the care and moisturizing of the lips, leading to discomfort for users after application.

[0006] Many lip glosses contain large or unevenly dispersed pigment particles in their formulas, resulting in an uneven and inconsistent coloring effect when applied. This is especially problematic for dry lips, where lip glosses often create unnatural streaks or smudge, affecting the overall refinement of the makeup.

[0007] While many lip gloss products on the market have made breakthroughs in color, they fall short in terms of moisturizing properties, lasting power, and comfort. Consumers' demands for a lip gloss go beyond just vibrant and long-lasting color; they also require sustained hydration, a comfortable application experience, and all-day color retention. Therefore, existing products still have significant room for improvement in terms of integrating multiple functions. Summary of the Invention

[0008] The purpose of this invention is to provide a lip gloss with high color retention that can be applied quickly, effectively solving the technical problems of lip gloss in terms of quick color application, longevity, comfort, and moisturizing, and improving the overall performance and user experience of lip gloss.

[0009] The technical solution adopted by this invention to solve its technical problem is:

[0010] A high-retention lip gloss with fast color application comprises pigments, moisturizing factors, and long-lasting ingredients encapsulated in microcapsules. The microcapsules have a multi-layer structure, with an outer layer of polymer material, a middle layer of encapsulation layer for moisturizing factors and long-lasting ingredients, and an inner layer of encapsulation layer for pigments. The outer layer material includes polyvinyl alcohol, polyurethane, and polyacrylic acid; the middle layer material includes moisturizing factors and long-lasting ingredients; and the inner layer material consists of pigments and carrier materials.

[0011] Preferably, the mass of polyvinyl alcohol accounts for 40-60% of the total mass of the outer layer, the mass of polyurethane accounts for 20-40% of the total mass of the outer layer, the mass of polyacrylic acid accounts for 10-20% of the total mass of the outer layer, the mass of the moisturizing factor accounts for 40-60% of the total mass of the intermediate layer, the mass of the durable component accounts for 20-40% of the total mass of the intermediate layer, the mass of the pigment accounts for 30-50% of the total mass of the inner layer, and the mass of the carrier material accounts for 50-70% of the total mass of the inner layer.

[0012] Preferably, the moisturizing factor is one or more of glycerin, hyaluronic acid, and hyaluronic acid.

[0013] Preferably, the durable component is one or more of silicone and fatty acid esters.

[0014] Preferably, the pigment is one or more of iron oxide, titanium dioxide, and natural plant pigments.

[0015] Preferably, the carrier material includes one or more of oil-soluble resins, polymers, vegetable oils, or waxes.

[0016] Preferably, the microcapsules have a particle size range of 50-2000 nm, wherein the outer polymer shell has a particle size of 500-2000 nm and the inner pigment has a particle size of 50-500 nm.

[0017] Preferably, the multilayer structure of the microcapsules is prepared by high-pressure spray drying, solvent evaporation, or freeze drying.

[0018] Another technical problem to be solved by the present invention is to provide a method for preparing a high-color-retention lip gloss that can be applied quickly, comprising the following steps:

[0019] Pigments, moisturizing factors, long-lasting ingredients, and polymer materials are mixed to form a preliminary mixture;

[0020] Microcapsules were prepared by high-pressure spray drying, solvent evaporation or freeze drying, wherein pigments, moisturizing factors and long-lasting ingredients were encapsulated in different layers of the microcapsules, ensuring that the pigment layer was located in the innermost layer, the moisturizing factors and long-lasting ingredients were located in the middle layer, and the polymer material was located in the outermost layer.

[0021] During the preparation process, water-ethanol solution was selected as the solvent, and the temperature was controlled at 30-50℃ to ensure that the particle size of the microcapsules is within the range of 50-2000nm. The particle size of the outer polymer shell is 500-2000nm, and the particle size of the inner pigment is 50-500nm.

[0022] The resulting microcapsules are dried and solidified using appropriate physical methods to obtain microcapsules with a multilayer structure and controllable release.

[0023] The prepared microcapsules are mixed with the lip gloss base ingredients to obtain the final lip gloss product.

[0024] The beneficial effects of this invention are:

[0025] The pigments encapsulated in microcapsules can be released quickly, helping the lip gloss to color rapidly during application, solving the problem of slow color application in traditional lip glosses and thus improving the user experience. Through the multi-layered structure of the microcapsules, the pigments are effectively encapsulated in the inner layer, and the intermediate layer of polymer materials and moisturizing ingredients further enhances the stability and adhesion of the pigments, reducing pigment loss and allowing the lip gloss to maintain its vibrant color during long-term use, solving the problem of traditional lip glosses being prone to fading or discoloration.

[0026] The moisturizing factor in the middle layer effectively keeps the lips moisturized, preventing dryness and peeling of the lip gloss. This solves the problem of dryness and peeling that traditional lip glosses may cause after use, improving the comfort and moisturizing feel of the lip gloss. The microcapsule encapsulation design makes the lip gloss application smoother, avoiding uneven pigment particles and improving the smoothness and evenness of application. This solves the problem of uneven color patches or grainy texture that may occur after applying traditional lip glosses.

[0027] The multi-layered structure of this solution (including a polymer layer, a moisturizing layer, and a pigment layer) not only provides long-lasting color through the synergistic interaction of its components, but also adds multiple functions to the product (such as moisturizing, long-lasting color, and color enhancement). This solves the problem of multiple functions being mutually exclusive in the market, allowing the product to meet basic makeup needs while also taking into account skincare benefits. Specific implementation methods

[0028] The principles and features of the present invention are described below. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Example

[0030] Example 1: High Moisturizing Lip Gloss

[0031] Microcapsule formulation:

[0032] Outer polymer material: Polyvinyl alcohol: 50%, polyurethane: 30%, polyacrylic acid: 20%;

[0033] Intermediate layer (moisturizing factors and long-lasting ingredients): Moisturizing factors (glycerin, hyaluronic acid): 50%; Long-lasting ingredients (silicone, fatty acid esters): 30%.

[0034] Inner layer (pigments and carrier materials): Pigments (iron oxides, titanium dioxide): 40%; Carrier materials (oil-soluble resins, polymers, vegetable oils): 60%.

[0035] Preparation method:

[0036] Mixing: Pigments, moisturizing factors (glycerin, hyaluronic acid) and long-lasting ingredients (silicone) are mixed with polymer materials (polyvinyl alcohol, polyurethane, polyacrylic acid) to form a preliminary mixture.

[0037] Microcapsule preparation: High-pressure spray drying was used with water-ethanol solution as solvent and the temperature was controlled at 40℃ to ensure that the particle size of the microcapsules was between 50-2000 nm, with the outer polymer shell having a particle size of 500-2000 nm and the inner pigment having a particle size of 50-500 nm.

[0038] Drying and curing: Drying and curing are carried out through physical methods to obtain microcapsules with multi-layered structures.

[0039] Mixing: The prepared microcapsules are mixed with the lip gloss base ingredients to obtain the final highly moisturizing lip gloss product.

[0040] Example 2: Long-lasting lip gloss

[0041] Microcapsule formulation:

[0042] Outer polymer material: polyvinyl alcohol: 45%, polyurethane: 35%, polyacrylic acid: 20%;

[0043] Intermediate layer (moisturizing factors and long-lasting ingredients): Moisturizing factors (hyaluronic acid, glycerin): 40%; Long-lasting ingredients (fatty acid esters, silicone): 40%.

[0044] Inner layer (pigment and carrier material): Pigment (natural plant pigments, titanium dioxide): 30%; Carrier material (vegetable oil, oil-soluble resin): 70%.

[0045] Preparation method:

[0046] Mixing: Pigments (natural plant pigments, titanium dioxide), moisturizing factors (hyaluronic acid, glycerin) and long-lasting ingredients (fatty acid esters, silicone) are mixed with polymer materials (polyvinyl alcohol, polyurethane, polyacrylic acid) to form a preliminary mixture;

[0047] Microcapsule preparation: The solvent evaporation method was adopted, with water-ethanol solution selected as the solvent and the temperature controlled at 50°C to ensure that the particle size range of the microcapsules is 50-2000nm, the outer polymer shell particle size is 500-2000nm, and the inner pigment particle size is 50-500nm.

[0048] Drying and curing: Multilayer microcapsules with controllable release effect are obtained by freeze drying or other physical methods.

[0049] Mixing: The prepared microcapsules are mixed with the lip gloss base ingredients to obtain a high-lasting lip gloss product.

[0050] Example 3: Balanced moisturizing and long-lasting lip gloss

[0051] Microcapsule formulation:

[0052] Outer polymer material: polyvinyl alcohol: 55%, polyurethane: 25%, polyacrylic acid: 20%;

[0053] Intermediate layer (moisturizing factors and long-lasting ingredients): Moisturizing factors (glycerin, hyaluronic acid): 60%; Long-lasting ingredients (silicone, fatty acid esters): 20%.

[0054] Inner layer (pigments and carrier materials): Pigments (natural plant pigments, iron oxides): 35%; Carrier materials (vegetable oils, polymers, oil-soluble resins): 65%.

[0055] Preparation method:

[0056] Mixing: Pigments (natural plant pigments, iron oxides), moisturizing factors (glycerin, hyaluronic acid) and long-lasting ingredients (silicone, fatty acid esters) are mixed with polymer materials (polyvinyl alcohol, polyurethane, polyacrylic acid) to form a preliminary mixture;

[0057] Microcapsule preparation: High-pressure spray drying was used, with water-ethanol solution as the solvent and the temperature controlled at 35℃ to ensure that the particle size of the microcapsules ranged from 50 to 2000 nm, with the outer polymer shell having a particle size of 500 to 2000 nm and the inner pigment having a particle size of 50 to 500 nm.

[0058] Drying and curing: The multilayer microcapsules are dried and cured by appropriate physical methods (such as freeze drying or solvent evaporation);

[0059] Mixing: The prepared microcapsules are mixed with the lip gloss base ingredients to obtain a balanced moisturizing and long-lasting lip gloss product.

[0060] Example 4

[0061] A quick, natural, and long-lasting lip enhancement method, including:

[0062] Step 1: Lip Cleansing and Preparation

[0063] First, thoroughly cleanse your lips to ensure even absorption of the pigments. The highly moisturizing lip gloss in Example 1 has a powerful moisturizing effect; therefore, keep your lips moist after cleansing to ensure optimal color payoff.

[0064] Step 2: Apply the lip gloss from Example 1 for quick coloring.

[0065] Apply the highly moisturizing lip gloss directly to your lips. The lip gloss contains microcapsule technology to ensure that the pigments can penetrate quickly and maintain rich and long-lasting color.

[0066] The lip gloss has a smooth and lightweight texture, applies quickly without stickiness, and instantly gives the lips a natural and even color.

[0067] Step 3: Pigment implantation using minimally invasive techniques

[0068] The lip gloss uses a minimally invasive technique to gently treat the surface of the lips, allowing the pigments in the lip gloss to penetrate the skin layer more effectively.

[0069] In this way, the color of the lips can be evenly distributed, avoiding the uneven or dull lip color problems that occur in traditional methods;

[0070] Step 4: Create a natural gradient effect on the lips.

[0071] Using a gentle application technique, the lip gloss blends naturally on the lips, creating a gradient effect from the center to the edges;

[0072] The center part retains a richer color, while the edges of the lips gradually fade, simulating a natural lip color gradient and avoiding the intensity of traditional lip makeup.

[0073] Step 5: Post-operative lip care and maintenance

[0074] Use lip repair balm or moisturizing lip oil to help lock in moisture, enhance the hydration of the lips, and prevent chapped lips;

[0075] Regularly applying a highly moisturizing lip gloss can not only maintain the color of your lips, but also help moisturize and repair the skin on your lips.

[0076] During the recovery period, avoid using harsh cosmetics and keep your lips gently cared for.

[0077] Experimental Example

[0078] This experiment aims to evaluate and compare the performance differences of three microencapsulation-based lip glosses (high-moisturizing lip gloss, long-lasting lip gloss, and balanced moisturizing and long-lasting lip gloss) with commonly available lip gloss products on the market in terms of high color retention and fast application, and to verify their superiority.

[0079] Experimental methods:

[0080] Experimental sample:

[0081] Example 1: High Moisturizing Lip Gloss

[0082] Example 2: Long-lasting lip gloss

[0083] Example 3: Balanced moisturizing and long-lasting lip gloss

[0084] Control group: Existing lip glosses commonly found on the market (lip glosses without microencapsulation technology)

[0085] Experimental Projects:

[0086] High color retention test: The color retention of the lip gloss is evaluated by simulating 24 hours of wear.

[0087] Quick color application test: Evaluate the speed and evenness of color application of the lip gloss after application to the lips.

[0088] Experimental steps:

[0089] 1. High color retention rate test

[0090] Experimental design: Each experimental sample was evenly coated with existing lip gloss on a standardized skin model (artificial skin). Then, 24-hour daily wear conditions were simulated, including daily activities such as eating and drinking.

[0091] Evaluation criteria: After 24 hours, measure the persistence of lip color using a standard colorimeter (such as Colorimeter) and record the color difference value (ΔE value). A lower color difference value indicates better color retention.

[0092] Experimental results:

[0093] Example 1 (High Moisturizing Lip Gloss): △E = 3.2 (Moisturizing factors help delay pigment loss and maintain color vibrancy for a longer period of time).

[0094] Example 2 (High-lasting lip gloss): △E = 2.1 (The combination of long-lasting ingredients and pigments with high color retention provides the best color retention effect).

[0095] Example 3 (Balanced Lip Gloss): △E=2.7 (Balancing lasting power and moisturizing properties, with good color retention).

[0096] Control group (existing lip gloss): △E=6.5 (traditional lip glosses usually fade quickly due to rapid water evaporation and pigment loss).

[0097] Conclusion: Lip glosses encapsulating pigments and long-lasting ingredients using microencapsulation technology exhibit excellent color retention, especially Example 2 (high-lasting lip gloss), which has a higher color retention rate than traditional lip gloss products.

[0098] 2. Quick coloring test

[0099] Experimental design: Each lip gloss was applied to a standardized skin model (artificial skin), and the time (in seconds) for the color to fully develop was recorded. Each lip gloss was to be applied evenly to the lower lip, and the speed and evenness of color development were observed.

[0100] Evaluation criteria: The color development time and uniformity after application are rated on a scale of 1 to 5, where 1 indicates uneven color and 5 indicates uniform and rapid color development.

[0101] Experimental results:

[0102] Example 1 (High Moisturizing Lip Gloss): Color fully develops in 8 seconds, uniformity score: 4.8 (Moisturizing factors help the pigment to be released quickly and prevent it from drying out after application).

[0103] Example 2 (High-lasting lip gloss): Color fully develops in 7 seconds, uniformity score: 4.9 (the long-lasting ingredients allow the pigment to adhere quickly without any fading).

[0104] Example 3 (Balanced Lip Gloss): Color fully develops in 7 seconds, evenness score: 4.7 (The balanced formula ensures rapid and even color coverage).

[0105] Control group (existing lip gloss): Color fully developed time: 15 seconds, uniformity score: 3.5 (traditional lip gloss has a slower color development speed and is prone to uneven application).

[0106] Conclusion: Examples 1, 2, and 3 significantly outperformed traditional lip gloss products in terms of color application speed. In particular, Examples 2 (high-lasting lip gloss) and 1 (high-moisturizing lip gloss) both demonstrated rapid and even color application.

[0107] Results analysis:

[0108] High color retention: All three lip glosses demonstrated significant advantages in color longevity compared to existing lip glosses. In particular, Example 2 (high-lasting lip gloss) maintained optimal color longevity through effective encapsulation of the long-lasting ingredients, with a ΔE value of 2.1, which is significantly superior to the ΔE value (6.5) of existing lip glosses.

[0109] Rapid color application: All three lip gloss examples demonstrated excellent color application speed, especially Examples 2 and 1, which outperformed traditional lip glosses in both speed and evenness. Example 1 achieved a color application time of only 8 seconds with even coverage, showcasing the advantages of microcapsule technology in enhancing the application experience.

[0110] The above embodiments of the present invention are not intended to limit the scope of protection of the present invention. The implementation of the present invention is not limited thereto. All other modifications, substitutions or alterations made to the above structure of the present invention based on the above content of the present invention, in accordance with ordinary technical knowledge and common practice in the field, without departing from the basic technical idea of ​​the present invention, shall fall within the scope of protection of the present invention.

Claims

1. A lip gloss with high color retention and quick application, characterized in that, The product contains pigments, moisturizing factors, and long-lasting ingredients encapsulated in microcapsules. The microcapsules have a multi-layer structure, with an outer layer of polymer material, a middle layer of encapsulation layer for moisturizing factors and long-lasting ingredients, and an inner layer of encapsulation layer for pigments. The outer layer is made of materials including polyvinyl alcohol, polyurethane, and polyacrylic acid, the middle layer is made of materials including moisturizing factors and long-lasting ingredients, and the inner layer is made of pigments and carrier materials.

2. The lip gloss with high color retention and quick application according to claim 1, characterized in that: The outer layer comprises 40-60% polyvinyl alcohol, 20-40% polyurethane, and 10-20% polyacrylic acid. The moisturizing factor comprises 40-60% of the middle layer, the durable component comprises 20-40% of the middle layer, the pigment comprises 30-50% of the inner layer, and the carrier material comprises 50-70% of the inner layer.

3. The lip gloss with high color retention and quick application according to claim 2, characterized in that: The moisturizing factor is one or more of glycerin, hyaluronic acid, and hyaluronic acid.

4. The lip gloss with high color retention and quick application according to claim 2, characterized in that: The durable component is one or more of silicone and fatty acid esters.

5. The lip gloss with high color retention and quick application according to claim 2, characterized in that: The pigment is one or more of iron oxide, titanium dioxide, and natural plant pigments.

6. The lip gloss with high color retention and quick application according to claim 2, characterized in that: The carrier material includes one or more of oil-soluble resins, polymers, vegetable oils, or waxes.

7. The lip gloss with high color retention and quick application according to any one of claims 1-6, characterized in that: The microcapsules have a particle size range of 50-2000 nm, wherein the outer polymer shell has a particle size of 500-2000 nm and the inner pigment has a particle size of 50-500 nm.

8. The lip gloss with high color retention and quick application according to claim 7, characterized in that: The multilayer structure of the microcapsules is prepared by high-pressure spray drying, solvent evaporation or freeze drying.

9. A method for preparing a high-color-retention lip gloss with rapid color application, characterized in that: Includes the following steps: Pigments, moisturizing factors, long-lasting ingredients, and polymer materials are mixed to form a preliminary mixture; Microcapsules were prepared by high-pressure spray drying, solvent evaporation or freeze drying, wherein pigments, moisturizing factors and long-lasting ingredients were encapsulated in different layers of the microcapsules, ensuring that the pigment layer was located in the innermost layer, the moisturizing factors and long-lasting ingredients were located in the middle layer, and the polymer material was located in the outermost layer. During the preparation process, water-ethanol solution was selected as the solvent, and the temperature was controlled at 30-50℃ to ensure that the particle size of the microcapsules is within the range of 50-2000nm. The particle size of the outer polymer shell is 500-2000nm, and the particle size of the inner pigment is 50-500nm. The resulting microcapsules are dried and solidified using appropriate physical methods to obtain microcapsules with a multilayer structure and controllable release. The prepared microcapsules are mixed with the lip gloss base ingredients to obtain the final lip gloss product.