Resina draconis functional lipstick and preparation method thereof

Abstract

The invention relates to a resina draconis lipstick, in particular to a repairing and moistening lipstick based on resina draconis, polyvinylpyrrolidone and Tween 80. The lipstick combines the characteristics of bright color, durability and no decoloration of the traditional lipstick, and meanwhile, the natural plant extract dragon's blood is added, so that the lipstick provides excellent anti-inflammatory and repairing effects for lips. Besides, by introducing a high-performance polymer polyvinylpyrrolidone and a high-efficiency surfactant Tween 80, the dispersity and stability of the dragon's blood are remarkably improved, so that the lipstick is finer and smoother in texture, easy to smear and good in stability and safety.

Description

Technical Field

[0001] The invention relates to the field of cosmetics, and in particular to a dragon's blood lipstick and a preparation method thereof. Background Art

[0002] Dragon's Blood, also known as Qilinjie, Qilinxue, and Blood Flower, is a precious medicinal material derived from the palm plant Qilinjie (scientific name Dracaena cochinchinensis or Dracaena cinnabari). When the plant is damaged, it will secrete a deep red resin from the trunk or fruit. This resin is the "Dragon's Blood" in traditional Chinese medicine after drying. Its main components include dragon's blood B, sword-leaved dragon's blood C, dragon's blood A, etc. These components give dragon's blood a variety of pharmacological effects. As a precious Chinese medicinal material, dragon's blood has a history of at least 1,500 years in traditional Chinese medicine. Since ancient times, it has been used to treat various symptoms such as traumatic injuries, blood stasis, and bleeding from trauma, and its remarkable efficacy has been highly praised. In modern pharmacological research, dragon's blood has shown a wide range of pharmacological activities, such as: 1. Reducing swelling and relieving pain, promoting blood circulation and dispersing blood stasis: Dragon's blood can promote blood circulation, and has a good effect on relieving congestion and bruises caused by injuries and collisions. It can reduce pain and swelling, promote local blood circulation, and accelerate the absorption of blood stasis. 2. Regulating menstrual blood: For women, dragon's blood can regulate irregular menstruation, relieve symptoms such as dysmenorrhea, and improve abdominal pain caused by stagnation of qi and blood. 3. Anti-inflammatory and bactericidal: Dragon's blood has a certain antibacterial effect, can inhibit the growth of certain bacteria and fungi, and has a certain therapeutic effect on skin infections and sores. 4. Inhibiting fungi: Dragon's blood water extract has an inhibitory effect on a variety of pathogenic fungi in the outside world, showing its potential application in the treatment of skin diseases.

[0003] Dragon's blood not only has many uses in the medical field, but its application in the cosmetic field has also gradually attracted attention in recent years. Due to its unique ingredients and efficacy, it is regarded as a natural and efficient cosmetic active ingredient. Dragon's blood is rich in a variety of phenolic compounds (such as dracotoxin), which have significant antioxidant properties, can effectively remove free radicals, slow down the oxidation reaction during skin aging, and protect the skin from environmental pollution and damage caused by ultraviolet rays. Therefore, it is widely added to anti-aging creams, essences and eye creams to help reduce fine lines and wrinkles, improve skin elasticity, and keep the skin young. The antioxidant properties of dragon's blood also make it play a role in sunscreen products, which can help resist the damage of ultraviolet rays to the skin, reduce melanin deposition, and brighten the skin tone, so it is used in sunscreens, brightening lotions and other products. Dragon's blood also has a good anti-inflammatory effect, which can relieve skin inflammation and reduce redness and swelling. It is particularly suitable for sensitive and acne-prone skin. It is used in sensitive skin care products, such as soothing masks and anti-acne gels, which help to reduce skin allergic reactions and promote skin recovery. Although dragon's blood is mainly known for its antioxidant and repair abilities, it also has a certain moisturizing effect and can help improve the skin's ability to retain moisture and enhance skin firmness. Therefore, it is also used in moisturizing lotions, firming masks and other products.

[0004] Polyvinylpyrrolidone (PVP) is a non-ionic water-soluble polymer, which is polymerized by N-vinylpyrrolidone (NVP) under certain conditions. PVP was initially used as a plasma solubilizer. In later studies, people gradually found that PVP has many excellent physical and chemical properties, and can complex with fungicides and oxidants to reduce the irritation and side effects of fungicides and oxidants. PVP monomer NVP can copolymerize with a variety of compounds to form copolymers with moisturizing, shading, shaping, hair care, and increasing hair gloss and smoothness. It is an indispensable raw material for creams, ointments, lotions, styling milk, mousse and hair spray. In lipstick, PVP can form a transparent, smooth and elastic film, which can enhance its durability and waterproofness, help the color adhere to the lips better, and give a comfortable and smooth feeling; it helps to increase the viscosity of the formula, making the lipstick paste more stable, easy to apply and evenly distributed, while preventing the separation of ingredients; although PVP is mainly a synthetic polymer, it can assist moisturizing ingredients such as glycerin in cosmetic formulas, working together on the skin surface to provide a smooth and non-dry touch; PVP has high chemical stability, which can improve the overall stability of the lipstick formula and prevent stratification or deterioration due to temperature changes.

[0005] Tween 80 is a nonionic surfactant, also known as polysorbate 80. It is an amber oily viscous liquid, semi-gel at low temperatures, with a peculiar smell, slightly bitter and astringent taste, and a warm feeling. In the production of cosmetics, Tween 80 mainly plays the role of enhancing the extensibility of emulsifiers, lubrication, solubilization and dispersion. It can be used as an emulsifier, dispersant, wetting agent, stabilizer, etc. to help the oil phase and water phase in cosmetics mix better, making the product texture more delicate and uniform, while improving the stability and shelf life of the product.

[0006] Although the existing lipstick formulas are rich and varied, they still need to be improved in terms of moisturizing, pigment stability and durability. Dragon's blood has attracted much attention due to its excellent antioxidant and repair capabilities, but its application in lipstick is limited by its dispersibility and stability. Although polyvinyl pyrrolidone (PVP) and Tween 80 can improve certain properties, their effects are limited when used alone. Therefore, developing a lipstick formula that can fully utilize the potential of these ingredients has become a research hotspot in the cosmetics industry. Summary of the invention

[0007] The present invention aims to provide a novel lipstick formula, which solves the above-mentioned problems and improves the overall performance of the lipstick by forming a solid solution of dragon's blood, PVP and Tween 80.

[0008] The present invention adopts the following technical solutions:

[0009] The invention discloses a dragon's blood functional lipstick and a preparation method thereof, characterized in that the lipstick comprises the following components in percentage by weight: dragon's blood extract, accounting for 10% to 30% of the total weight; polyvinyl pyrrolidone (PVP), accounting for 20% to 40% of the total weight; Tween 80, accounting for 10% to 30% of the total weight; and the balance is a mixture of vegetable oil and natural wax.

[0010] As a further improvement of the technical solution of the preparation method of the present invention, the molecular weight of polyvinylpyrrolidone (PVP) is controlled between 20,000 and 100,000 Daltons to ensure ideal film-forming elasticity and skin affinity.

[0011] As a further improvement of the technical solution of the preparation method of the present invention, the preparation temperature of the solid solution is 60° C. and the stirring time is 1 hour to ensure that the components are fully mixed and form a uniform and stable solid solution.

[0012] As a further improvement of the technical solution of the preparation method of the present invention, the preparation method of the lipstick comprises the following steps:

[0013] 1. Weigh dragon's blood, PVP, and Tween 80 as needed, and dissolve the above ingredients in ethanol to obtain a clear solution. Mix the solutions and stir at 50-80℃ for 1h under magnetic stirring. Remove the solvent on a rotary evaporator, dry at 40-50℃, and then dry in a vacuum drying oven at 40℃ for 24h.

[0014] 2. Weigh appropriate amount of wax base and oil and melt them at 70-80℃, stir thoroughly for 30min. Add the powder from step 1 to the molten mixture, stir with a high-speed shear at 60℃ for 10min, and finally cool the paste to 50-60℃ and fill it into an oral red tube.

[0015] Compared with the prior art, the beneficial effects of the present invention are mainly reflected in: enhancing the spreadability and durability of lipstick: the application of solid solution technology makes the distribution of pigments in lipstick more uniform, significantly improving the spreadability of lipstick. In addition, the durability of lipstick is also significantly improved. Even in daily activities such as eating and talking, the color can be kept bright and not easy to fade. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with specific embodiments.

[0017] Example 1

[0018] The invention provides a lipstick formula, which comprises the following raw materials by weight: 1g of dragon's blood, 2g of polyvinyl pyrrolidone (PVP), 4g of Tween 80, 2g of jojoba seed oil and 1g of beeswax.

[0019] The preparation method comprises the following steps: 1. Weigh dragon's blood, PVP and Tween 80 as required. Dissolve the above components in ethanol respectively to obtain a clear solution. Mix the solutions and stir them at 60°C for 1 hour under magnetic stirring. Remove the solvent by rotary evaporator, dry at 45°C, and then dry in a vacuum drying oven at 40°C for 24 hours.

[0020] 2. Weigh appropriate amount of wax base and oil and melt them at 80℃, stir thoroughly for 30min. Add the powder from step 1 to the molten mixture, stir with a high-speed shear at 60℃ for 10min, and finally cool the paste to 50℃ and fill it into an oral red tube.

[0021] The prepared dragon's blood lipstick was characterized by X-ray diffraction, as follows:

[0022] The test conditions were room temperature, Cu target, tube voltage of 40 kV, tube current of 30 mA, scanning range of 10°-80°, and scanning speed of 0.02° / s. Take dragon's blood, dragon's blood-PVP, dragon's blood-Tween 80 and dragon's blood-PVP-Tween 80, press them into tablets, and measure them. The results showed that: (1) there was a characteristic peak of dragon's blood at 21.68°, which existed in dragon's blood-PVP, dragon's blood-Tween 80 and dragon's blood-PVP-Tween 80, but it was significantly weakened or even disappeared in dragon's blood-PVP-Tween 80; (2) in the range of 15-30°, the diffraction peak Imax of dragon's blood, dragon's blood-PVP, dragon's blood-Tween 80 and dragon's blood-PVP-Tween 80 (1:2:4, 1:4:2, 1:3.5:3, 1:9:1) were 27, 161, 140, 134, 143, 84 and 63° respectively, especially in dragon's blood-PVP-Tween 80 (1:2:4), the characteristic crystal diffraction peak transmission intensity of dragon's blood was basically disappeared. This showed that the solid solution of dragon's blood was successfully prepared.

[0023] Example 2

[0024] The present invention provides a lipstick formula, comprising the following raw materials in parts by weight: 1g of dragon's blood, 1g of polyvinyl pyrrolidone (PVP), 5g of Tween 80, 2g of jojoba seed oil and 1g of beeswax. The preparation method thereof includes the above.

[0025] Example 3

[0026] The present invention provides a lipstick formula, comprising the following raw materials in parts by weight: 1g of dragon's blood, 4g of polyvinyl pyrrolidone (PVP), 2g of Tween 80, 2g of jojoba seed oil and 1g of beeswax. The preparation method thereof includes the above.

[0027] Example 4

[0028] The present invention provides a lipstick formula, comprising the following raw materials in parts by weight: 1g of dragon's blood, 3g of polyvinyl pyrrolidone (PVP), 3g of Tween 80, 2g of jojoba seed oil and 1g of beeswax. The preparation method thereof includes the above.

[0029] Example 5

[0030] The present invention provides a lipstick formula, comprising the following raw materials in parts by weight: 1g of dragon's blood, 5g of polyvinyl pyrrolidone (PVP), 1g of Tween 80, 2g of jojoba seed oil and 1g of beeswax. The preparation method thereof includes the above.

[0031] Comparative Examples 1-2 were prepared according to the ratios in the following table

[0032]

[0033] Spreadability test: This experiment is designed with the spreadability of lipstick as the main evaluation index. The spreadability test method is: weigh 0.1g of the finished lipstick and evenly spread the lipstick on the bottom of a 100g weight. Then fix a piece of glass with an inclination angle of 30°, and let the weight with lipstick slide down the glass slope naturally until the lipstick at the bottom of the weight is completely spread on the glass surface. The length of the scratch on the glass is the spreadability index of the lipstick: the longer the scratch, the better the spreadability of the lipstick. The test results are shown in the following table:

[0034]

[0035]

[0036] It can be seen from the table that when the mass ratio of PVP to Tween 80 is 2:4, the spreadability of the prepared lipstick is the best, which is significantly improved compared with the commercially available lipstick. When PVP or Tween 80 is missing, the spreadability is extremely poor, which further proves that only when the three are mixed in a suitable ratio to form a solid solution can a greater synergistic effect be exerted.

[0037] Test Example 2

[0038] The lipsticks of Examples 1 to 5 were tested to examine their melting point, breaking strength, coloring ability, moisturizing properties, stability, etc.

[0039] (1) Melting point: The melting point determination method in Appendix VIC of the Chinese Pharmacopoeia 2010 was used;

[0040] (2) Breaking force: tested using a lipstick breaking instrument. Generally, for a lipstick with a diameter of 12.1 mm, the breaking force should be in the range of 400-800 g to ensure that it is not easy to break during use;

[0041] (3) Coloring ability and moisturizing degree: The sensory evaluation was conducted using actual use, with 5 points representing good, 4 points representing good, 3 points representing fair, 2 points representing poor, and 1 point representing poor. The data were recorded after 20 people evaluated and the average value was taken.

[0042] (4) Stability: refers to the test under four conditions of 25℃, -18℃, 48℃, -18℃ and 48℃ for 3 months. There is no change after returning to normal temperature and it can be used normally. This is used as the evaluation standard.

[0043] (5) Durability test: The product of the embodiment of the present invention and the best-selling lipstick on the market were also selected. After applying the lipstick for 10 minutes, the user took a sip on a white porcelain cup and observed the mark left on the rim of the cup. The lip lines were also displayed on oil-absorbing paper 10 minutes after applying the lipstick and observed the amount of lip lines left. A total of 45 users were invited to participate in the test (5 people in each group), with a full score of 15 points.

[0044] (6) Antibacterial test: The product of the embodiment of the present invention and the commercially available best-selling lipstick were also selected and applied on the same artificial skin or fabric, with a thickness of 0.2 mm. Under the same conditions, each experimental subject applied 10 samples and exposed them at 30±5°C for 18 hours to measure the microbial index (total number of bacteria). The test results are shown in the following table:

[0045]

[0046] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A dragon's blood lipstick and a preparation method thereof, characterized in that: The invention comprises the following components in weight percentage: dragon's blood, accounting for 10%-30% of the total weight; polyvinyl pyrrolidone (PVP), accounting for 20%-40% of the total weight; Tween 80, accounting for 10%-30% of the total weight; and the balance is a mixture of vegetable oil and natural wax.

2. A dragon's blood lipstick and a preparation method thereof according to claim 1, characterized in that: The molecular weight of polyvinylpyrrolidone (PVP) is controlled between 20,000 and 100,000 Daltons.

3. A dragon's blood lipstick and a preparation method thereof according to claim 1, characterized in that: The preparation temperature of the solid solution is 60° C. and the stirring time is 1 h to ensure that the components are fully mixed and form a uniform and stable solid solution.

4. A dragon's blood lipstick and a preparation method thereof according to claim 1, comprising the following steps: 1) Weigh dragon's blood, PVP, and Tween 80 as needed. Dissolve the above ingredients in ethanol to obtain a clear solution. Mix the solutions and stir at 50-80°C for 1 hour under magnetic stirring. Remove the solvent on a rotary evaporator, dry at 40-50°C, and then dry in a vacuum drying oven at 40°C for 24 hours. 2) Weigh an appropriate amount of wax base and oil and melt them at 70-80°C, stirring thoroughly for 30 minutes. Add the powder from step 1 to the molten mixture, stir with a high-speed shear at 60°C for 10 minutes, and finally cool the paste to 50-60°C and fill it into an oral red tube.

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