Bright-surface makeup-holding color-fixing lipstick and preparation method thereof

Abstract

The invention provides a bright-surface, makeup-holding and color-fixing lipstick and a preparation method thereof. The composition comprises the following components in percentage by weight: 15%-20% of phenyl-containing polytrimethylsiloxane, 3%-6% of synthetic wax, 0.1%-0.5% of meadowfoam seed oil, 0.1%-0.5% of simmondsia chinensis seed oil, 0.1%-0.5% of phytosterol ester and a film-forming agent; the phase B contains an emollient; the phase C contains a colorant; and the phase D contains other auxiliary agents. The preparation method comprises the following steps: adding the A-phase raw materials into a reaction container, heating and dissolving at 90 + / -5 DEG C, stirring after dissolving, and preserving heat; sequentially adding the B-phase component, and continuously stirring at constant temperature for 5 minutes; heating to 80 + / -5 DEG C, adding the phase C, homogenizing to a colorless point, controlling the temperature to 75 + / -5 DEG C, sequentially adding the phase D component, and stirring at constant temperature for 5 minutes; and filling to obtain the product. The phenyl silicone oil is incompatible with common grease, the linker and the synthetic wax are added to form a stable system, the system is damaged during smearing, and the phenyl silicone oil floats upwards to form oil film fixation. Meanwhile, a specific film-forming agent is added into common grease to form a protective film, so that the adhesive force is enhanced, and the advantages of small makeup resistance, weak stickiness and the like are also brought.

Description

Technical Field

[0001] The present application relates to the field of color cosmetics technology, and more particularly to a glossy, long-lasting, color-fixing lipstick and a preparation method thereof. Background Art

[0002] Lipstick, as a key product in the field of cosmetics, is mainly applied to the lips. It can add color to the lips or change their color and is deeply loved by consumers. There are rich categories of lipsticks on the current market, including matte lipsticks, velvet lipsticks, glossy lipsticks, etc., each with its own characteristics.

[0003] Glossy lipstick is widely popular among consumers due to its advantages such as easy carrying, outstanding brightness, and good tactile experience when taking out the material. However, the formulas of similar glossy lipsticks on the market mostly use ordinary high-gloss oils, film-forming agents, and ozokerite wax as raw materials.

[0004] While these glossy lipsticks all offer a glossy finish, they generally suffer from several shortcomings. They often perform poorly in terms of color retention, with poor color retention and easy fading. They also feel unsatisfactory on the skin, with a thick, heavy texture. Even some products that strive to improve their color retention still suffer from issues like high application resistance and a sticky feel. Furthermore, during the production and filling process, glossy lipsticks often experience delamination and cracking, impacting both product quality and production efficiency. Summary of the Invention

[0005] In order to solve the above-mentioned problems, the present application provides a glossy long-lasting lipstick and a preparation method, aiming to achieve the purpose of high gloss and long-lasting color by applying the compatibility between raw materials.

[0006] In the first aspect, the present application provides a glossy, long-lasting, color-fixing lipstick that adopts the following technical solutions: A glossy, long-lasting, color-fixing lipstick. The raw materials used for preparing the lipstick include the following components, in percentage by mass: phase A: 15-20% phenyl trimethicone, 3-6% synthetic wax, 0.1-0.5% meadowfoam seed oil, 0.1-0.5% jojoba seed oil, 0.1-0.5% phytosterol ester, and 21.5-38% film-forming agent; Phase B: Emollient 32-55%; Phase C: colorant 0.55-2.4%; Phase D: other additives 0.12-1.6%.

[0007] By adopting the above technical solution and utilizing oil-oil separation technology, based on the incompatibility of phenyl trimethicone with ordinary oils, a stable system is formed. When applied, phenyl trimethicone floats to form a film, effectively blocking external factors from eroding the color of the lipstick and achieving color fixation. At the same time, a film-forming agent is added to form a protective film on the surface of ordinary oils, thereby enhancing the adhesion of the lipstick on the lips, significantly improving the makeup holding ability, and bringing a good user experience with low makeup resistance and weak stickiness.

[0008] Furthermore, the film-forming agent in the phase A is selected from at least one of hydrogenated polyisobutylene, acrylic acid (ester) copolymer, VP / hexadecene copolymer, and VP / eicosene copolymer.

[0009] In some preferred embodiments, the film former in phase A is composed of 15-20% hydrogenated polyisobutylene, 3-8% acrylic acid (ester) copolymer, 3-8% VP / hexadecene copolymer, and 0.5-2% VP / eicosene copolymer.

[0010] By adopting the above technical solution, at least one of hydrogenated polyisobutylene, acrylic acid (ester) copolymer, VP / hexadecene copolymer, and VP / eicosene copolymer is selected as the phase A film-forming agent, and in a preferred embodiment, the content of each film-forming agent is precisely controlled (15-20% hydrogenated polyisobutylene, 3-8% acrylic acid (ester) copolymer, 3-8% VP / hexadecene copolymer, 0.5-2% VP / eicosene copolymer). This not only effectively enhances the film-forming effect and adhesion of the lipstick on the lips, but also further improves the lipstick's ability to hold its color. This refined film-forming agent ratio design helps to form a more uniform, dense, and long-lasting protective film, thereby better preventing external factors from eroding the lipstick's color, while giving the lipstick a smooth, non-sticky application experience.

[0011] Furthermore, the colorant in phase C is selected from one or more of CI 77492, CI 77891, CI 15850, CI 77491, CI77499, and CI 16035.

[0012] In some preferred embodiments, the colorant in phase C consists of 0.1-0.5% CI 77492, 0.1-0.5% CI 77891, 0.1-0.3% CI 15850, 0.1-0.5% CI 77491, 0.05-0.1% CI 77499, and 0.1-0.5% CI16035.

[0013] Furthermore, other auxiliary agents in the phase D are composed of moisturizers, antioxidants and preservatives.

[0014] In some preferred embodiments, other adjuvants in phase D are composed of 0.01-0.1% sodium hyaluronate, 0.01-0.5% tocopheryl acetate, and 0.1-1% phenoxyethanol-caprylyl glycol.

[0015] By adopting the above technical solution, the lipstick has achieved significant optimization in terms of color presentation and product stability. In the preferred embodiment, the colorants are precisely proportioned to achieve a rich and full color effect while ensuring color uniformity and stability. In addition, the reasonable combination of other additives in phase D not only effectively improves the moisturizing performance of the lipstick, but also prolongs the product's antioxidant capacity. In a second aspect, the present application provides a method for preparing a glossy, long-lasting, color-fixing lipstick using the following technical solution: A method for preparing a glossy, long-lasting, color-fixing lipstick comprises the following steps: S1. Add the raw materials in phase A to the reaction vessel, heat at 90±5°C to dissolve, stir at 100-500 rpm until fully dissolved, and keep warm at 70±5°C; S2. Continue to add the components of phase B to the reaction vessel in sequence, and then stir at a constant temperature of 100-500 rpm for 5 minutes; S3. Then, raise the system temperature to 80±5°C, add phase C, and homogenize at 300-400 rpm for 2-5 minutes until the colorless point. Then, control the system temperature to 75±5°C, add the components of phase D to the reaction vessel in sequence, and stir at a constant temperature of 100-500 rpm for 5 minutes. S4. Finally, use the corresponding packaging materials and molds for filling.

[0016] Furthermore, the raw materials of phase C in step S3 need to be pretreated. The specific process is: mix the components of phase C, use a high-speed mixer to stir at a speed of 1000-3000 rpm for 10-20s, and repeat three times until there are no single-color particles.

[0017] By implementing this technical solution, the deep and even mixing of all lipstick components is fully ensured, thereby establishing a stable system architecture. This process not only significantly improves product production efficiency but also greatly enhances quality stability. Furthermore, this solution imparts the lipstick with exceptional glossy, long-lasting color retention, precisely meeting consumers' expectations and demands for high-quality lipstick products.

[0018] In summary, this application has the following beneficial effects: The present application adopts oil-oil separation technology to achieve the effect of long-lasting and color-fixing lipstick gloss. This technology is based on the incompatibility of phenyl silicone oil with ordinary oils and fats, and adds linkers and synthetic waxes to the formula to form a stable mixed system between the two. When consumers apply lipstick, the application action will destroy this system, causing the phenyl silicone oil to separate from the ordinary oils and fats. The separated phenyl silicone oil floats up, allowing an oil film to form on the surface of the lips, thereby effectively blocking the erosion of the lipstick color by external factors and achieving color fixation; in addition, the present application also adds a specific film-forming agent to ordinary oils and fats, so that a uniform and dense protective film can be formed on its surface, thereby enhancing the adhesion of the lipstick on the lips, reducing the possibility of lipstick falling off due to friction, sweating and other factors, and further improving the ability to hold makeup and fix color. At the same time, this design also brings the advantages of low makeup resistance and weak stickiness. DETAILED DESCRIPTION

[0019] To more clearly illustrate the present invention, the present invention is further described below in conjunction with preferred embodiments. It should be understood that the embodiments described are only a portion of the present invention, not all of the embodiments. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0020] The purpose of the present invention is illustrated by the following examples. The components of the composition are illustrated in parts by weight as a general standard. Unless otherwise specified, for the sake of simplicity, the "parts" described in the examples of the present invention have the same meaning as parts by weight.

[0021] Unless otherwise specified, all reagents and instruments used were commercially available.

[0022] Among them, phenyl trimethicone was purchased from Dow (Zhangjiagang) Investment Co., Ltd. with the brand name DC556; synthetic wax was purchased from Shanghai Rongzhi Materials Technology Co., Ltd. with the brand name M80; and Limnanthes alba seed oil was purchased from Elementis Specialties, Inc. with the brand name FANCOR Limnanthes alba seed oil. SEED OIL; jojoba (SIMMONDSIA CHINENSIS) seed oil was purchased from JOJOBA DESERT (ACS), Ltd., with the brand name JD Jojoba Coloress Oil (colorless jojoba oil); phytosterol esters were purchased from Shanghai Cobalt Industrial Co., Ltd., with the brand name Vitasterol S-80 Esterified Non GMO; hydrogenated polyisobutylene was purchased from Ineos Singapore Pte. Ltd., with the brand name PANALANE H-300E; acrylic acid (ester) copolymers were purchased from Guangzhou Shengkaisi Chemical Technology Co., Ltd., with the brand name AVOBRITE; VP / hexadecene copolymers were purchased from Ashland LLC, with the brand name Antaron TM v-216polymer; VP / eicosene copolymer purchased from Ashland LLC, brand Antaron TM v-220f polymer; Trimethylpentaphenylsiloxane was purchased from Dow (Zhangjiagang) Investment Co., Ltd. under the trade name DOWSIL TM PH-1555HRICosmetic Fluid; diphenyl polydimethylsiloxane was purchased from Xinyue Silicone International Trading (Shanghai) Co., Ltd., brand KF-54; trimethylsiloxyphenyl polydimethylsiloxane was purchased from Wacker Chemical (China) Co., Ltd., brand PDM 1000; CI 77492 was purchased from Shanghai Cofeng Biotechnology Co., Ltd., brand iron oxide yellow UNI-Fe Yellow 75; CI77891 was purchased from Shanghai Cofeng Biotechnology Co., Ltd., brand titanium dioxide Ti-18 AS; CI 15850 was purchased from Shanghai Cofeng Biotechnology Co., Ltd., brand UNI-Lake R7AS; CI 77491 was purchased from Shanghai Cofeng Biotechnology Co., Ltd., brand iron oxide red (RP29AS); CI 77499 was purchased from Shanghai Cofeng Biotechnology Co., Ltd., brand iron oxide black (RP50AS); CI16035 was purchased from Shanghai Cofeng Biotechnology Co., Ltd., brand Trulybright UNILake R 40AS; Sodium hyaluronate was purchased from Shandong Focus Freda Biological, brand Sodium hyaluronate; tocopherol acetate were purchased from Zhejiang Medicine Co., Ltd., brand DL-alphaTocopheryl Acetate; phenoxyethanol-caprylyl glycol were purchased from Shanghai Qianyi, brand Microcare PHG.

[0023] Example 1 A glossy, long-lasting, color-fixing lipstick, the raw materials for its preparation, in terms of weight percentage, include the following components: And it is prepared by the following method: S1. Add the raw materials in phase A to the reaction vessel, heat at 95°C to dissolve, stir at 400 rpm until fully dissolved, and keep warm at 75°C; S2. Continue to add the components of phase B to the reaction vessel in sequence, and then stir at a constant temperature of 400 rpm for 5 minutes; S3. Then, raise the system temperature to 85°C, add phase C, and homogenize at 300 rpm for 5 minutes until the colorless point. Then, control the system temperature to 70°C, add the components of phase D to the reaction vessel in sequence, and stir at a constant temperature of 1200 rpm for 5 minutes. S4. Finally, use the corresponding packaging materials and molds for filling.

[0024] Examples 2-5 A glossy, long-lasting, color-fixing lipstick. The preparation method and raw materials used are basically the same as those in Example 1, with the only difference being the different amounts of the components used. The specific details are shown in the table below.

[0025] Examples 6-8 A glossy, long-lasting, color-fixing lipstick is prepared by a method substantially the same as in Example 1, with the only difference being that the ratios of trimethyl pentaphenyl trisiloxane, diphenyl polydimethicone, and trimethylsiloxyphenyl polydimethicone in the emollient in phase B are different. The specific ratios are shown in the table below.

[0026] Comparative Example 1 A glossy, long-lasting, color-fixing lipstick is prepared by a method substantially the same as in Example 1, with the only difference being that the phenyl trimethicone in phase A is replaced by an equal amount of polydimethylsiloxane, which is purchased from Kalmar Reagent P34091.

[0027] Comparative Example 2 A glossy, long-lasting, color-fixing lipstick is prepared by a method substantially similar to that of Example 1, with the only difference being that the synthetic wax in phase A is purchased from DowSyn 500PE of Shanghai DowPu Chemical.

[0028] Comparative Example 3 A glossy, long-lasting, color-fixing lipstick is prepared by a method substantially similar to that of Example 1, with the only difference being that no phytosterol ester is added to phase A. Specific amounts are shown in the table below.

[0029] Comparative Example 4 A glossy, long-lasting, color-fixing lipstick is prepared by a method substantially the same as in Example 1, the only difference being that the meadowfoam seed oil in phase A is replaced by an equal amount of rosehip oil.

[0030] Comparative Example 5 A glossy, long-lasting, color-fixing lipstick is prepared by a method substantially the same as that of Example 1, the only difference being that the jojoba seed oil in phase A is replaced by an equal amount of grape seed oil.

[0031] The lipsticks prepared in the above examples and comparative examples were used as test samples. According to the GB / T25613-2011 standard, except for the illumination test with an inspection period of 3 days and observation every 24 hours, the other inspection periods were 30 days and observation every 48 hours. Physical and chemical performance tests were performed on them. The test results are shown in the table below.

[0032] Color fastness test: Apply an appropriate amount of lipstick evenly to a standard lip mold. Allow it to completely dry and form a film. Then, secure the lipstick mold to a friction tester and rub it with a standard rubbing cloth at a pressure of 200g and a speed of 60 times / minute. The number of rubbing cycles was set to 20, 50, and 100. After each rubbing cycle, the rubbing cloth was removed and the Lab value of the lipstick color on the rubbing cloth was measured using a colorimeter. This was compared to the Lab value of the lipstick color without rubbing, and the color difference, ΔE, was calculated. A larger color difference indicates more severe discoloration.

[0033] Makeup resistance test: Twenty subjects aged 20-40 years of age and of different genders were selected and divided equally into five groups. Lipstick samples prepared in the examples and comparative examples were applied to the lips of the subjects, and the makeup resistance was evaluated and scored on a scale of 1-5, with 1 indicating very little resistance and 5 indicating relatively high resistance.

[0034] Stickiness test: Use a lip brush to evenly apply lipstick on a glass plate, covering an area of 10×10mm 2, the coating thickness is controlled at 0.5±0.1mm. After the coating is completed, place the glass plate on a horizontal table and dry it naturally in a constant temperature and humidity environment to ensure that the lipstick is completely dry and forms a film. Use tweezers to pick up 20 sticky test balls (polyethylene balls) and gently place them in the center of the area where the lipstick is applied. Try to distribute the balls evenly. Slowly and steadily tilt the glass plate to the set angle (20±1)°, and start timing at the same time. Observe and record the time when the balls start to slide, and the number of balls that slide within 30±5 seconds. Repeat the test 3 times, calculate the average time when the balls start to slide and the average number of balls that slide in the 3 tests, and evaluate the stickiness of the lipstick based on the principle that the longer the average sliding time and the fewer the average number of balls that slide, the stronger the stickiness.

[0035] As can be seen from the above table, the lipstick samples prepared in Examples 1-6 have good color retention and low color difference value ΔE in terms of makeup holding performance after a certain period of time and friction testing, indicating that they have strong color fixing ability and can effectively resist the discoloration problem caused by external friction; in terms of makeup resistance, the application process is relatively smooth and the resistance is small, and the user can easily and evenly apply makeup; in terms of stickiness, there is no obvious stickiness after application; this shows that they exhibit good characteristics in terms of makeup holding, makeup resistance, and stickiness.

[0036] As for the lipstick samples prepared in Examples 7 and 8, they had a strong sticky feeling and the ΔE increased after repeated rubbing, indicating that their long-lasting makeup and color fixation performance was poor; The lipstick samples prepared in Comparative Examples 1-5 performed poorly in terms of makeup resistance, makeup lasting color, and sticky feeling.

[0037] The above are all modifications that a person skilled in the art can make to this embodiment as needed after reading this specification, which do not contribute creatively or solutions that obviously constitute technical inspiration. However, as long as they are within the scope of the claims of this application, they should be protected by patent law.

Claims

1. A glossy, long-lasting, color-fixing lipstick, characterized in that: The raw materials used in the preparation include the following components in percentage by mass: Phase A: 15-20% phenyl trimethicone, 3-6% synthetic wax, 0.1-0.5% meadowfoam seed oil, 0.1-0.5% jojoba seed oil, 0.1-0.5% phytosterol esters, 21.5-38% film former; Phase B: Emollient 32-55%; Phase C: colorant 0.55-2.4%; Phase D: other additives 0.12-1.6%.

2. The glossy, long-lasting, color-fixing lipstick according to claim 1, characterized in that: The emollient in phase B is composed of trimethyl pentaphenyl trisiloxane, diphenyl polydimethylsiloxane, and trimethylsiloxyphenyl polydimethylsiloxane in a mass ratio of 1:1:(0.1-0.3).

3. The glossy, long-lasting, color-fixing lipstick according to claim 1, characterized in that: The film-forming agent in the phase A is selected from at least one of hydrogenated polyisobutylene, acrylic acid (ester) copolymer, VP / hexadecene copolymer, and VP / eicosene copolymer.

4. The glossy, long-lasting, color-fixing lipstick according to claim 1, characterized in that: The colorant in phase C is selected from one or more of CI 77492, CI 77891, CI 15850, CI 77491, CI 77499, and CI 16035.

5. The glossy, long-lasting, color-fixing lipstick according to claim 1, characterized in that: The other auxiliary agents in the phase D are composed of moisturizers, antioxidants and preservatives.

6. The glossy, long-lasting, color-fixing lipstick according to claim 5, characterized in that: The moisturizer is sodium hyaluronate, the antioxidant is tocopheryl acetate, and the preservative is phenoxyethanol-caprylyl glycol.

7. The method for preparing the glossy, long-lasting, color-fixing lipstick according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1. Add the raw materials in phase A to the reaction vessel, heat at 90±5°C to dissolve, stir at 100-500 rpm until fully dissolved, and keep warm at 70±5°C; S2. Continue to add the components of phase B to the reaction vessel in sequence, and then stir at a constant temperature of 100-500 rpm for 5 minutes; S3. Then, raise the system temperature to 80±5°C, add phase C, and homogenize at 300-400 rpm for 2-5 minutes until the colorless point. Then, control the system temperature to 75±5°C, add the components of phase D to the reaction vessel in sequence, and stir at a constant temperature of 100-500 rpm for 5 minutes. S4. Finally, use the corresponding packaging materials and molds for filling.

8. The method for preparing the glossy, long-lasting, color-fixing lipstick according to claim 7, characterized in that: In the S3 step, the raw materials of phase C need to be pre-treated. The specific process is: mix the components of phase C, use a high-speed mixer to stir at a speed of 1000-3000 rpm for 10-20s, and repeat three times until there are no single-color particles.

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